bab 3 analisa low flow.docx
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Detail Engineering Design PLTM Ma’dong
BAB IIIANALISA POTENSI DEBIT/LOW FLOW
LOKASI PLTA GENYEM
3.1. Umum
Pemantauan debit harian atau dalam periode waktu tertentu terkadang
sangat sulit untuk di lakukan, sehingga dalam kebutuhan analisa dan
perencanaan bangunan yang berkaitan langsung dengan Air, membutuhkan
pendekatan pemodelan perhitungan hidrologi yang dapat mewakili prediksi
kondisi di lapangan, yakni besaran aliran debit di jaringan wilayah sungai.Berbagai model numerik hidrologi yang dikembangkan untuk melakukan
pendekatan analisa pemodelan hidrlogi debit aliran ini, seperti
modelhidrologi Model Tank, Fj Mock, N!"A, dan kemudian berkembang lagi
model #idrologi A$%&AT '((( berbasis )*%, yang mampu menganalisa
pendekatan kejadian hasil siklus hidrologi di permukaan bumi ini, dari
karakteristik hujan wilayah, penggunaan lahan dan jenis tanah wilayah
pemodelan dan karakteristik topogra+ dan grounwater nya
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pemodelan dan karakteristik topogra+ dan grounwater nya
Detail Engineering Design PLTM Ma’dong
studi menggunakan data Peta Penggunaan dan managemen lahan wilayah
studi, sehingga di dapatkan koe+sien koe+sien lahan yang mempengarui laju
run o0 dan laju erosi lahan, bagaimana kondisi tanah wilayah studi
menggunakan data peta dan atribut propertis tanah wilayah studi, sehingga
didapatkan koe+sien dan besar kemampuan tanah dalam meresapkan air
dan kemampuan tanah menahan laju erosi, dan bagaimana kondisi
kelerengan lahan wilayah studi menggunakan peta topogra+ wilayah yang
didapatkan dari peta Bakosurtanal dan Puslit 1ata 2ementrian P3. Paket
pemodelan yang digunakan yaitu paket pemodelan %pasial #idrologi A$%&AT
'(((, dengan hasil utamanya adalah 1ebit ow Flow lokasi %tudi, debit
limpasan lahan 1A%, laju !rosi dan 1ebit, %edimen sungai *n4ow bangunan
PTM Madong. %edangkan untuk analisa hidrologi peluang banjir yang
mungkin terjadi di lokasi studi perencanaan ini menggunakan metode
2on5ensional hidrogra/ %atuan %intetis methode Nakayasu dan %nyder.Berikut di bawah ini merupakan penyusunan Methode Analisa #idrologi pada
pelaksanaan pekerjaan ini 6
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Gambar 3.1. Carth Analisa Hidrologi
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3.3. Metode Analisa Simulasi Model menggunaan AVSWAT 2000
A$%&AT '((( 7Arc $iew %oil and &ater Assessment Tool8 adalah sebuah
so/tware yang berbasis %istem *n/ormasi )eogra+s 7%*)8 Arc$iew 9.' atau 9.9
7!%*8 sebagai ekstensi 7graphical user inter/ace8 di dalamnya. Program ini di
keluarkan oleh Te:as &ater esources *nstitute, "ollege %tation, Te:as, 3%A.
Arc$iew sendiri adalah salah satu dari sekitar banyak program yang berbasis
%istem *n/ormasi )eogra+s 7%*)8A$%&AT dirancang untuk memprediksi pengaruh manajemen lahan pada
aliran air, sedimen, dan lahan pertanian dalam suatu hubungan yang
kompleks pada suatu 1aerah Aliran %ungai 71A%8 termasuk di dalamnya jenis
tanah, tata guna lahan dan manajemen kondisi lahan secara periodik. 3ntuk
tujuan pemodelan, program A$%&AT memudahkan pengguna 7user8 dengan
melakukan pembagian suatu wilayah 1A% yang luas menjadi beberapabagian sub 1A%;sub 1A% untuk memudahkan dalam perhitungan.
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b. TM1 %ungai Poteau >klahoma Arkansas. %tudi ini
berisikan pekerjaan meliputi menentukan jumlah sedimen, nitrogen,
phospor yang akan tertampung di &aduk &ister dan kandungan
oksigen, temperatur, alga, dan "B>1 pada aliran sungai. 1alam skenario
perhitungannya juga meliputi besarnya hasil limbah peternakan unggas.
c. Nilai 11T di wilayah 1P% %ungai ?akima, &hosington.
%&AT digunakan untuk mensimulasikan kondisi eksisting dan kedepantentang besar konsentrasi sedimen yang terkontaminasi oleh 11T di
%ungai ?akima tersebut.
d. 2antor !PA urusan pestisida telah menge5aluasi dengan
menggunakan model A$%&AT untuk menganalisa tingkat pemakaian
Peptisida.
Model program %&AT ini dalam simulasi perhitungan tentang kejadian
hidrologi maupun hidrolik pada suatu 1P%, yaitu menggunakan konsep dasar
kesetimbangan = &ater ballance. 3ntuk tingkat keakuratan hasil 6
penyebaran pestisida, sedimen atau nutrient, siklus hidrologi, simulasi dari
model haruslah memiliki kesesuaian dengan kondisi yang terjadi dilapangan.
%imulasi hidrologi pada suatau areal 1aerah Pengaliran %ungai secara umum
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SW o = kandungan air dalam tanah pada awal periode 7mm #'>8
t waktu 7hari8
R besaran hujan yang terjadi pada hari ke i 7mm #'>8
Qsurf tinggi limpasan permukaan pada periode waktu ke i 77mm #'>8
Ea besar e5apotranspirasi pada periode waktu ke i 7mm #'>8
W seep jumlah air yang masuk ona lapisan tanah keras pada periode
waktu ke i 7mm #'>8
W gw = jumlah air pada aliran air tanah pada periode waktu ke i7mm #'>8
B& Fs" Pd Su%gi
%&AT dalam menentukan kandungan air, sedimen, nutrisi dan pestisida
menuju sungai, kandungan tersebut ditelusuri melalui jaringan sungai pada
masing;masing %ub 1P%. Pada tahap ini pencarian roting masa pada sungai,
%&AT juga memodelkan trans/ormasi dari kimia;kimia yang terkandung
dalam aliran sungai.outing pada sungai;sungai utama dapat dibagi menjadi C komponen 6
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nutrient terangkut dengan air sementara itu yang terkandung dalam
sedimen jumlahnya tetap hingga proses pengendapan sedimen pada
dasar sungai.
C. P"s#isid Ro#i%g. %ementara Pestisida yang nilainya dalam jumlah
besar, dalam model sebagai data input dimasukkan pada input data #3
7Hidrolog Response Units8. %eperti nutrient, total pestisida yang masuk ke
sungai adalah yang terlarut dan yang melekat pada material sedimen.%ementara itu dalam studi ini, pengolahan data dan simulasi model 7A$%&AT
'(((8 dijalankan untuk mencari 6
a. Analisa aju impasan Permukaan 1P%;1P% dalam catchment
area
b. !rosi lahan 1P%;1P% dalam catchment areac. aju sedimentasi 1P%;1P% dalam catchment area
d. %umber polutan dan pola penyebarannya yang mencemari
3.!. "n#ut $ata AVSWAT 2000A$%&AT '((( membutuhkan in/ormasi;in/ormasi mengenai komponen;
komponen suatu 1A% antara lain hujan ang terjadi di 1A% tataguna lahan
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9. 2epencengan presipitasi bulanan 7P"P%2&8
C. Probabilitas hari hujan terhadap hari kering 7P&@8
G. Probabilitas hari hujan terhadap hari hujan 7P&'8
H. ata;rata jumlah hari hujan bulanan 7P"P18
I. #ujan maksimum bulanan 7A*N##MJ8
A$%&AT '((( dapat menyimulasikan sekian banyak proses;proses +sika dan
kimia yang terjadi pada suatu 1A%. *nput data;data spasial pada A$%&AT
untuk setiap sub 1A% diatur menurut 6 data cuaca, data #ydrologic esponse
3nit 7#38, data air tanah, dan data saluran utama. #3 adalah daerah
lahan yang dikaji pada sub 1A%, termasuk didalamnya adalah penutup lahan=
tata guna lahan, jenis tanah, dan in/ormasi;in/ormasi yang terdapat dalam
suatu 1A%.Program ini menganalisis semua masalah yang terjadi pada suatu 1A%
dengan pronsip dasar pola keseimbangan aliran. 3ntuk memperkirakan
pergerakan pestisida, sedimen, dan nutrisi tanaman dengan akurat. A$%&AT
menyimulasikan proses;proses yang terjadi dalam siklus hidrologi, yang
selanjutnya digunakan dalam pemodelan.
%i l i hid l i d t 1A% dib d k j di d / P t
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%iklus hidrologi Pola data swat
9. Pada proses aliran permukaan juga terdapat proses lainnya yang
terjadi secara bersamaan yaitu
sering disebut dengan proses
in+ltrasi yaitu meresapnya air
kedalam tanah, dan mengisi
kapasitas tampung tanah hinggaakhirnya kapasitas tanah tersebut
mencapai tingkat jenuh, sehingga
terjadi limpasan di permukaan7run o! 8, pergerakan air tersebut
juga akan mengisi cekungan
cekungan permukaan alam yang
di lewatinya.
9. Peta Tataguna ahan 6
>lahan data peta ini akanmenghasilkan nilai nilai
konstanta penutup lahan,
dimana nilai tersebut
menjadi /actor parameter
hambatan aliran atau sering
disebut sebagai angka
kekasaran dapat berupa nilain manning atau koe+sien
lahan lainnya seperti
"N="ur#e $um%er pada
methode %"%. 7ingat /ormula
manning $ @=n '=9%@='
dimana kecepatan aliran di
pengaruhi angka n manning8
C. Peta Denis Tanah 6 >lahan
data peta ini akan
menghasilkan nilai nilai
konstanta untuk perhitungankemampuan
resapan=in+ltarsi dan nilai
nilai konstanta erodibilitas
tanah= kemampuan tahan
t h d i il i 2 il i
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%iklus hidrologi Pola data swat
a. 1ata Manajemenahan=PPT
b. 1ata %tatistikPembangkitan 1ata
#idroklimatologi
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Gambar 3.3. Silus Hidrologi %emodelan AVSWAT
Mulai
Peta
Topografi
Data Hidrologi
dan Peta
Stasiun Hujan
Peta Lokasi sumber
Polutan
dan Data-data
Keluaran Limbah
Peta Jenis
Tanah dan
Tabel
Parametern
ya
Peta Tataguna
Lahan dan
Tabel
Parameternya
Pengolahan DM
Penggambaran
!atas DPS dan
Sub DPS
Penggambaran
!atas-batas
Polygon Tataguna
Lahan
Pembuatan Tabel
Parameter Data
!ase Polygon
tataguna Lahan
Penggambaran
!atas-batas
Polygon Jenis
Tanah
Pembuatan Tabel
Parameter Data
!ase Polygon
Jenis Tanah
Pembuatan Tabel
Parameter Data
!ase Keluaran
Limbah
Pembuatan Tabel
Parameter Data
!ase Hirologi
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Gambar 3.!. $iagram Alir &er'a Model AVSWAT 2000
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3.(. $AS Gen)em
Das Genyem adalah berada pada wilayah administrasi Desa : dengan luas DAS seluas
520 km2. Pegunungan yang menjadi wilayah perbukitan DAS Genyem adalah : Gunung
Yanawuniden Gunung Dinggrang Pegunungan !enai Pegunungan "imb#ran.
3.*. &arateristi Hidrologi +ila)ah Studi
Pada wilayah studi terdapat ketersediaan data hujan yakni %ta. )enyem, %ta.
Besum, %ta. Nimbokarang, %ta. %awoy dimana secara rekapitulasi data hujanadalah sebagai berikut6
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Gambar 3.(. ,erata Hu'an Wila)ah Studi Stasiun Gen)em
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erata hujan wilayah %tudi %tasiun Besum adalah sebesar H,(H mm=hari dan hujan
maksimum yang pernah terjadi selama '((G hingga '(@C adalah sebesar @'9
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Gambar 3.10. Masimum Hu'an Wila)ah Studi Stasiun imboarang
erata hujan wilayah %tudi %tasiun Nimbokarang adalah sebesar H,CC mm=hari dan
hujan maksimum yang pernah terjadi selama '((G hingga '(@C adalah sebesar
''' mm=hari.
$abel %.-. 'erata (ujan )ilayah Studi Stasiun Saw#y
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Gambar 3.11. ,erata Hu'an Wila)ah Studi Stasiun Sa+o)
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LAPORAN ANALISA
Detail Engineering Design PLTA Genyem
Gambar (.1 Sebaran &elerengan ahan $AS Gen)em
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3.-. &arateristi &elerengan ahan $AS
Gambar 3.13. Sebaran &elerengan ahan $AS Gen)em
Pada wilayah 1A% >utlet encana Bendung PTA )enyem ini kelerengan
tertinggi sebesar CH.HH dengan luas area (,@' km' dimana sebaran kelerengan
lahan yang memiliki luasan terbesar adalah pada kelerengan ( ; G,@L .
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LAPORAN ANALISA
Detail Engineering Design PLTA Genyem
Gambar 3.1!. Sebaran &elerengan ahan $AS Gen)em
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Berdasarkan data data analisa tersebut di atas dan Peta %ebaran impasan
1A% )enyem maka dapat disimpulkan bahwa sumber in4ow banjir sungaiaspek limpasan terbesar di lahan sebelah hulu yaitu lahan 1A% sebelah
3tara, dan Perbukitan kiri kanan %ungai 3tama lahan sekitar lokasi PTA
)enyem 1A% Bagian Tengah, sedangkan lahan lahan lainnya merupakan
lahan yang memilki potensi resapan yang cukup besar, menjadi simpanan air
sungai saat musim kering.
Detail Engineering Design PLTA Genyem
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LAPORAN ANALISA
Detail Engineering Design PLTA Genyem
Gambar 3.20. Sebaran a'u im#asan %ermuaan ahan $AS Gen)em
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Gambar %.2&.
%.&&. Analisa P#tensi Aliran Debit (arian 7utlket 1#kasi P1$A Genyem *#del A8S)A$ 2000
Proses Di Sungai
Aliran air dalam suatu daerah aliran sungai 71A%8 dapat diklasi+kasikan
dalam dua kategori yaitu aliran yang terjadi di lahan 7o5erland 4ow8 dan aliran
yang terjadi di sungai. Perbedaan yang utama dari kedua jenis aliran tersebut
adalah dimana pada proses aliran di sungai mempertimbangkan aliran dasar 7base
4ow8 dan pengaruh dari laju debit. %&AT memodelkan proses aliran di sungai yang
mencakup pergerakan air, sedimen dan konstituen pollutant 7nutrients, pesticides
dll8 dalam jaringan sungai, siklus nutrisi di sungai 7in;stream nutrient cycling8 dan
trans/ormasi pestisida di dalam sungai 7in;stream pesticide trans/ormations8.
Penelusuran Debit (Water Routing)
%aluran terbuka adalah saluran dengan aliran yang muka air nya bebas,
seperti aliran pada sungai atau pada pipa yang tidak penuh. %&AT menggunakan
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3ser diharuskan untuk menentukan lebar dan kedalaman dari saluran ketika
penuh sampai permukaan tanggul maupun panjang saluran, kemiringan sepanjang
saluran dan nilai koe+sien n dari Manning. %&AT mengasumsikan bahwa sisi
saluran memiliki perbandingan penampang saluran sebesar '6@ 7ch '8.
2emiringan dari sisi saluran adalah O atau (,G. ebar dasar saluran dihitung dari
lebar dan kedalaman penuh dengan persamaan 6
dimana 6W %tm ebar dasar saluran 7m8,
W %nkfull ebar atas saluran ketika penuh terisi air 7m8,
& '( Faktor kemiringan penampang saluran, dan
dept(%nkfull 2edalaman air ketika penuh sampai puncak tanggul 7m8.
2arena diasumsikan bahwa ch ', ada kemungkinan untuk
perhitungan lebar dasar dengan persamaan 9.9.@.@.@ menjadi
kurang atau sama dengan nol. Dika hal ini terjadi, model
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uas penampang melintang aliran dihitung dengan 6
dimana 6
A'( uas penampang melintang aliran di dalam saluran 7m'8,
W %tm ebar dasar saluran 7m8,
& '( Faktor kemiringan penampang saluran, dan
dept( 2edalaman air pada saluran 7m8.
Perimeter basah dari saluran ditentukan dengan 6
dimana 6)'( Perimeter basah kedalaman aliran yang ditentukan 7m8
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A'( uas penampang melintang aliran di dalam saluran untuk
kedalaman yang ditentukan 7m'8.
2etika 5olume air melampaui jumlah maksimum yang ditampung oleh
saluran, limpahan air akan menyebar ke dataran banjir. 1imensi dataran banjir
yang digunakan oleh %&AT ditunjukkan dalam gambar6
Gambar 3.23. "lustrasi $imensi $ataran an'ir
ebar dasar dari dataran banjir, &btm.4d, adalah &btm.4d G . &bnk/ull.
%&AT mengasumsikan perbandingan penampang saluran dari dataran banjir adalah
C 6 @ 74d C8. %ehingga kemiringan dari dataran banjir adalah atau (,'G.
2etika terjadi aliran pada dataran banjir, perhitungan dari kedalaman aliran,
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W %tm ebar dasar saluran 7m8,
& '( Faktor kemiringan penampang saluran,
W %tm,+d ebar dasar dataran banjir 7m8,
& +d Faktor kemiringan dataran banjir,
)'( Perimeter basah kedalaman aliran yang ditentukan 7m8 dan
w%nkfull ebar atas saluran ketika penuh dengan air 7m8.
Debit Aliran dan Ke!e"atan
Persamaan Manning untuk aliran seragam dalam suatu saluran digunakan
untuk menghitung debit dan kecepatan aliran dalam suatu bentangan pias saluran
dengan rumus berikut 6
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dimana 6
A'( uas penampang melintang aliran pada saluran dengankedalaman tertentu 7m'8,
# '( $olume air yang ada dalam saluran 7m98, dan
L'( Panjang saluran 7km8.
Persamaan kedalaman aliran disusun ulang untuk menghitung kedalaman
aliran untuk waktu tertentu 6
dimana 6
dept( 2edalaman aliran 7m8,
A'( uas penampang melintang aliran pada saluran dengan
kedalaman tertentu 7m'8,
W %tm ebar dasar saluran 7m8, dan
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A'(,%nkfull uas penampang melintang aliran pada saluran ketika penuh
sampai permukaan tanggul 7m'8,
W %tm,+d ebar dasar dataran banjir 7m8,
& +d Faktor kemiringan dataran banjir.
2etika kedalaman sudah diketahui, maka perimeter basah dan jari;jari
hidrolik dapat dihitung dengan kedua persamaan diatas. Pada point ini, semua nilaiyang dibutuhkan untuk menghitung debit aliran dan kecepatan aliran sudah
diketahui dan persamaan debit dan kecepatan bisa dipecahkan.
Metode Penelusuran #ariabel Tam"ungan
Metode penelusuran 5ariabel tampungan dikembangkan oleh &illiams 7@KHK8
dan digunakan pada model #?M> 7&illiams dan #ann,@KI98 dan >T> 7Arnold et
al., @KKG8.
3ntuk suatu bentangan pias yang diketahui, penelusuran tampungan
didasarkan pada persamaan kontinuitas 6
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dimana 6
∆t ama jangka waktu 7s8,
-in.1 1ebit in4ow pada awal jangka waktu 7m9=s8,
-in.2 1ebit in4ow pada akhir jangka waktu 7m9=s8,
-out.1 1ebit out4ow pada awal jangka waktu,
-out.2 1ebit out4ow pada akhir jangka waktu 7m9=s8,
* stored.1 $olume tampungan pada awal jangka waktu 7m9 #'>8,
dan
* stored.2 $olume tampungan pada akhir jangka waktu 7m9 #'>8.
Penyusunan ulang dari persamaan diatas sehingga semua 5ariabel yang
diketahui berada di sisi kiri dari persamaan tersebut,
7@8
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3ntuk memperoleh hubungan antara pergerakan waktu dan koe+sien
tampungan, persamaan 7@8 disubstitusikan ke dalam persamaan 7'8 6
yang disederhanakan menjadi 6
Persamaan ini serupa dengan persamaan metode koe+sien 6
dimana 6S" 2oe+sien tampungan.
Persamaan diatas adalah dasar dari metode penelusuran kon5eks %"% 7%"%,
@KHC8 dan metode Muskingum 7Brakensiek @KHIQ >5erton @KHH8 1ari persamaan
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Metode Penelusuran Musingum
Metode penelusuran Muskingum memodelkan 5olume tampungan sepanjang
saluran sebagai kombinasi dari bentuk wedge dan prisma.
Gambar 3.2!. Tam#ungan dalam entu %risma dan Wedge
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dimana 6
* stored $olume tampungan 7m9 #'>8,
-in 1ebit in4ow 7m9=s8,
-out 1ebit lepasan 7m9=s8,
0 &aktu konstan tampungan jangkauan 7s8 dan adalah /aktor
berat. Persamaan ini dapat disusun menjadi bentuk 6
Bentuk ini serupa dengan persamaan sebelumnya
Faktor berat, J, memiliki batas bawah (,( dan batas atas (,G. Faktor ini
adalah suatu /ungsi dari tampungan wedge. 3ntuk tipe tampungan Badan Air, tidak
ada wedge dan J (,(. 3ntuk wedge penuh, J (,G. 3ntuk sungai, J akan
berkisar antara (,( sampai (,9 dengan nilai rata;rata mendekati (,'.
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0 '( 2ondukti5itas e/ekti/ hidrolik dari kikisan saluran 7mm=hr8,
// &aktu rambat aliran 7hr8,
)'( Perimeter basah 7m8 dan
L'( Panjang saluran 7km8. 2ehilangan akibat perpindahan dari saluran
utama diasumsikan memasuki penyimpanan tampungan atau
akui/er dalam.
Nilai tipikal untuk 2ch dengan beberapa 5ariasi material kikisan diberikan
dalam Tabel 9.@9. 3ntuk sungai perennial dengan kontribusi air tanah menerus,
kondukti5itas e/ekti/nya adalah sama dengan nol.
$abel %.&%. "ilai #ndukti9itas (idr#lik untuk !eberapa *aterial
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W ebar saluran pada permukaan air 7m8, dan
fr ∆t Fraksi dari waktu ketika air mengalir dalam saluran.
2oe+sien e5aporasi adalah parameter yang dikalibrasi untuk user dan dapat
ber5ariasi antara (,( dan @,(.
Fraksi dari waktu ketika air mengalir dalam saluran dihitung dengan
membagi antara waktu perjalanan dengan panjang waktu tertentu.
Ka"asitas Tam"ungan
Besarnya jumlah dari air yang memasuki tampungan dalam satu hari
dihitung dengan 6
dimana 6
%nk in Dumlah air yang memasuki tampungan 7m9 #'>8,
tloss = 2ehilangan air akibat perpindahan 7m9 #'>8 dan
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Detail Engineering Design PLTA Genyem
kebutuhan air untuk e5aporasi. 3ntuk menghindari kerancuan dengan de+nisi
e5aporasi tanah dan transpirasi, proses ini disebut dengan Ure5apV. Proses ini
signi+kan dalam 1A% dimana ona tak jenuh air tidak begitu jauh di bawah
permukaan atau ona dimana akar dalam tanaman tumbuh. Ue5apV dari
tampungan dikontrol dengan koe+sien re5ap air tanah yang dijelaskan pada #3
terakhir pada subbasin.
Dumlah maksimum dari air yang kemudian akan dipindahkan dari tampunganmelalui Ure5apV pada satu hari adalah 6
dimana 6
%nk re#ap.m3 Dumlah air maksimum yang dipindahkan ke dalam ona
tak jenuh untuk mengganti kekurangan 7m9 #'>8,
β re# 2oe+sien re5ap,
Eo !5aporasi potensial harian 7mm #'>8,
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Detail Engineering Design PLTA Genyem
Keseimbangan Air Saluran
2apasitas tampungan air pada bentangan di akhir waktu dihitung dengan 6
dimana 6* stored.2 $olume air pada bentangan di akhir waktu 7m9 #'>8,
* stored.1 $olume air pada bentangan di awal waktu 7m9 #'>8,
* in $olume air yang mengalir ke dalam bentangan pias selama
jangka waktu tertentu 7m9 #'>8,
* out $olume air yang mengalir ke luar bentangan pias selama jangka
waktu tertentu 7m9 #'>8,
tloss $olume air yang hilang dari bagian melalui perpindahan di dasar
7m9 #'>8,
E'( !5aporasi harian 7m9 #'>8,
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Detail Engineering Design PLTA Genyem
Tabel 9.@C. 1ebit #arian 1A% )enyem >utlet encana okasi
PTA 7m9=det8 erata @( #arian
Tahun
Periode
Dan Feb Mar Apr Mei Dun Dul agst %ept >kt No5 1es
'((G * (.G@ L.I' @K.K@
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G
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9
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9.KI C.@G L.@H H.9L @C.G@
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'K.KH
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L.IH H.9@ G.HG H.K9 C.H9 K.IC I.@H @I.9H
** K.L@ @C.'G
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'(@' * C9.G
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LAPORAN ANALISA
Gambar 3.2(. $ebit Historis angitan Hu'an 200( 4 201! ,erata Harian 5utlet $AS endung %TA Gen)em Model AVSWAT 2000
Detail Engineering Design PLTA Genyem
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LAPORAN ANALISA
)ambar 9.'H.
Detail Engineering Design PLTA Genyem
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LAPORAN ANALISA
Gambar 3.2-. $ebit Historis angitan Hu'an 200( 4 201! ,erata ( Harian 5utlet $AS endung %TA Gen)em Model AVSWAT 2000
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Detail Engineering Design PLTA Genyem
Tabel 9.@G. 1ebit #arian 1A% )enyem >utlet encana okasi PTA
7m9=det8 erata G #arian '((G Model A$%&AT '(((
Tahun Bulan
G#arian 1ebit Bulan
G#arian 1ebit
'((G
@
*(.@(CI
C'
I
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C
**(.K(KI
' ** C.((I'
*** G.CKH' *** 9.KL'
*$K.CCG@
HL *$ 9.IHIC
$ @.99C' $ 9.I'CH
$*@.G'9(
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99
'
* 9.K9(H
L
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HH ** 9.HHLC
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I *** 9.H'@
*$ 9.9C@' *$ 9.KG@C
$ K.9(L $ C.LHCL
$* L.IH9 $*9.GH(L
99
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Detail Engineering Design PLTA Genyem
$*9.LCCL
99 $*@(.L(H
H
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* 9.GC@
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* 'I.'9C
** 9.CHKC **@9.9GL
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$ @'.HK(GL $ @H.'LK
$*9I.GL(
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Tabel 9.@H. 1ebit #arian 1A% )enyem >utlet encana okasi PTA7m9=det8 erata G #arian '((H A$%&AT '(((
Tahun BulanG#arian 1ebit Bulan
G#arian 1ebit
'((H * @G.H' * G.I(
** @9.9I ** G.GK
*** @'.IC *** G.CK
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Detail Engineering Design PLTA Genyem
** I.(( ** L.@(
*** I.K9 *** @'.@9*$ H.K' *$ G.K@
$ H.I' $ G.LL
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*$ G.K9 *$ H.'@$ G.K9 $ K.GI
$* G.K@ $* @9.('
Tabel 9.@I. 1ebit #arian 1A% )enyem >utlet encana okasi PTA
7m9=det8 erata G #arian '((I A$%&AT '(((
Tahun BulanG#arian 1ebit Bulan
G#arian 1ebit
'((I
@
* 99.CG * G.I(
** @9.I( ** G.HG
*** @C.LG *** G.C9
*$ @'.L@ *$ G.9C
$ @9.LL $ G.@K
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Detail Engineering Design PLTA Genyem
*$ H.K( *$ @C.KI
$ I.@H $ K.G@$* H.G@ $* G.HG
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$ G.IH $ @H.''
$* G.I' $* C@.'I
Tabel 9.@L. 1ebit #arian 1A% )enyem >utlet encana okasi PTA
7m9=det8 erata G #arian '((L A$%&AT '(((
Tahun BulanG#arian 1ebit Bulan
G#arian 1ebit
'((L
@
* 'I.C@ * G.@9
** @'.K' ** G.(9
*** I.LL *** C.K@
*$ 9(.@H *$ C.L(
$ 'I.(9 $ C.I(
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$ G.I( $ G.CC
$* G.GL $* G.C9
H
* G.CG
@'
* G.I@
** G.C' ** G.9K
*** H.@9 *** K.9C
*$ G.'9 *$ H.KK
$ G.'9 $ L.9K
$* H.HC $* H.II
Tabel 9.@K. 1ebit #arian 1A% )enyem >utlet encana okasi PTA
7m9=det8 erata G #arian '((K A$%&AT '(((
Tahun Bulan
G
#arian 1ebit Bulan
G
#arian 1ebit'((K
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*$ L.GCH *$ G.HGG
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Detail Engineering Design PLTA Genyem
*$ HG.'C *$ H.IG
$ C@.'K $ @@.LC$* 9H.G@ $* H.KC
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$ GC.HG $ @9.'I
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$* HK.KC $* H.9H
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%edangkan sebaran debit rerata bulanan masing masing outlet %ub 1A%
)enyem adalah sebagai berikut6
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%.&&.2.(asil Analisa D;1#kasi !endung P1$A *ad#ng Pem#delan A8S)A$ 2000 Tabel 9.'H. Flow 1uration Titik >utlet okasi PTA )enyem Model
A$%&AT '(((
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%.&2. Analisa P#tensi Aliran Debit (arian 7utlket 1#kasi P1$A Genyem *#del "'<;A%.&2.&. <9ap#transpirasi
Besaran e5apotranspirasi yang dapat digunakan adalah metode Penman.
Alasan utama penerapan metode ini adalah karena Metode Penman dihitung
dengan memasukkan cukup banyak parameter iklim yang berpengaruh dan data
parameter iklim tersebut diharapkan mampu mewakili secara kuantitas maupun
kualitas.
1ata yang diperlukan untuk perhitungan meliputi 6 7 t 8, Temperatur udara bulanan rerata 7 °" 8
7#8, 2elembaban relati/ bulanan rerata 7 8
7n=N8, Penyinaran=kecerahan matahari bulanan rerata 7 8
738, 2ecepatan angin bulanan rerata 7m=det8
78, etak lintang daerah yang ditinjau
7"8, Angka koreksi Penman
Persamaan;persamaan empiris dalam perhitungan e5aporasi potensial
metode Penman modi+kasi ini adalah sebagai berikut6
!to c : !toE
( " W( ) ( ) ( ) ( )[ ]edeau) *+,n* −××−+×
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/7T8 /ungsi suhu σ. TaC/7ed8 /ungsi tekanan uap
(,9C R (,(CC . 7ed8@='/7n=N8 /ungsi kecerahan
+ N
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1ikarenakan keterbatasan data klimatologi, terutama parameter iklim
untuk perhitungan e5apotranspirasi potensial, maka perhitungan
e5apotranspirasi potensial yang dilakukan menghasilkan nilai
e5apotranspirasi potensial secara global=rerata.
Detail Engineering Design PLTA Genyem
Tabel 9.'I. !5apotranspirasi Potensial
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LAPORAN ANALISA
Bulan
Suhu
Udara
Rerata
(OC)
ea
(mbar) w f(t) Rh
ed
(mbar)
ea-ed
(mbar) f (ed)
Ra
(mm/hari
)
n/N
Rs
(mm/hari
)
f
( n/N )
u
(m/dt) f(u)
Rn1
(mm/hari
)
Eto*
(mm/hari
)
Eto
(mm/hari
)
!1" !#" !$" !%" !&" !'" !" !" !" !1+" !11" !1#" !1$" !1%" !1&" !1'" !1" !1"
1anuari %2 3/44 -24 +4+- -54 3-22 #50 -+- +/3# -#5 220 -/3 +%# -/4 -5% ##5 ++- #0%
6ebruari %4 334% -2/ +/0- -52 %0++ #/+ -+- +/2% -#3 2/5 -#0 ++% -/3 -5- #%2 ++- #2-
Maret %4 334% -2/ +/0- -54 %55/ #22 -+- +/45 -#/ 22% -/- ++4 -/# -53 #32 +-- #32
$pril %2 3/44 -24 +4+- -54 3-42 #00 -+- +//4 -#/ 24# -/- +-3 -/+ -25 #35 -0- 30#
Mei %2 3/44 -24 +4+- -5# 3--0 //2 -+- +#-/ -/5 20- -4% +-3 -/+ -00 ### -0- 3001uni %4 334% -2/ +/0- -54 %0-# #/5 -+- +3#/ -#4 42+ -/+ +-3 -/+ -5# 323 -0- 334
1uli %4 334% -2/ +/0- -5# %5%3 /30 -++ +34/ -/5 244 -4% ++% -/3 +-/ #%# -0- 35%
$gustus %4 334% -2/ +/0- -5# %5+/ /#2 -++ +##4 -/4 5-- -4- +%- -// +-% ##5 +-- ##5
Septembe
r %2 3/44 -24 +4+- -5% %03% 43# -+- +/+5 -/2 5/- -4% +%0 -/2 +-+ #0/ ++- /#/
Oktober %2 3/44 -24 +4+- -5# %05+ /5/ -+- +//% -/+ 5+0 -/4 +%0 -/2 -0- #20 ++- /%4
Nopember %2 3/44 -24 +4+- -5/ 3-#/ /%+ -+- +/3# -/+ 5-2 -/4 +%- -// -55 #43 ++- /-0
'esembe
r %2 3/44 -24 +4+- -52 3+-% #4# --0 +/+/ -/+ 205 -/4 +%- -// -54 #/+ ++- #04%umber6 #asil Perhitungan
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c. uas daerah yang hujannya dianggap mewakili oleh salah satu stasiun yang
bersangkutan adalah daerah yang dibatasi oleh garis;garis polgon tersebut 7atau
dengan batas 1A%8.d. uas relati/ daerah ini dengan luas 1A% merupakan /aktor koreksinya.e. #ujan rata;rata 1A% dapat dicari dengan persamaan berikut 6
2eterangan 6Pi tinggi hujan di stasiun i 7mm8Ai luas daerah yang diwakili oleh stasiun i 7km'8F2 /aktor koreksiP hujan rata;rata 1A% 7mm8
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LAPORAN ANALISA
Gambar 3.31. %eta %ol)gon Thiessen $AS Gen)em
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Tabel 9.'L. 1etail Pos%tasiun #3jan
%ama Pos Koordinat le,asim dpl.Lintang Selatan !ujur Timur
/enyem *0 123 114526 78+0 7+3 +14916 8:4++
!esum *0 123 7*4**6 78+0 713 7*41:6 ;2411
%imbokrang *0 183 854;56 78+0 +73 +24+:6 27411
Sa<oi *0 193 +94+96 78+0 *:3 +*4*;6 77245:
Sumber =Data
Tabel 9.'K. 2oe+sien Thiessen
Stasiun Koe&isien
/enyem +>*98
!esum +>7;+
%imbokrang +>7;;
Sa<oi +>11;
Tabel 9.9(. #ujan #arian erata &ilayah 1A% )enyem
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Tahun
HariJan ?eb Mar #pr Mei Jun Jul #gst Sept 'kt %o, Des
ke
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Gambar 3.32. Strutur model ,8CA
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P%3B (.K bila bersi/at lulus air.
)&F prosentase dari tampungan air tanah yang mengalir ke sungai
sebagai aliran dasar. )&F merupakan parameter karakteristik
lapisan tanah pada kedalaman ' R @( m.
)&F (.' bila bersi/at lulus air
)&F (.L bila bersi/at kedap air.
1isamping tiga parameter tersebut, ada dua parameter lagi yang pengaruhnya
kecil terhadap keluaran system 4low e!e't parameter5, yaitu 6
%M stor simpanan kelengasan tanah 4soil moisture storage5,
)& stor simpanan air tanah 4ground water storage5,
+.-& Si'p%% k"l"%gs% #%h (soil moisture storage/SM store)
%impanan kelengasan tanah adalah cadangan air yang besarnya
ditentukan oleh selisih dari tampungan akhir dan tampungan awal.
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2elebihan kelengasan tanah yang masuk ke dalam tanah dan
mengalami perkolasi akan masuk ke dalam tampungan air tanah, yang biasa
disebut akui/er.
Akibat proses hidrologi sebelumnya, akui/er ini biasanya tidak kosong. %impanan air
tanah dalam akui/er akibat proses hidrologi sebelunya disebut sebagai tampungan
awal air tanah 4%egin storage groundwater5. %ementara itu tampungan yang telah
mendapat tambahan air perkolasi disebut sebagai tampungan akhir air tanah 4end
storage groundwater5, Pada bulan selanjutnya tampungan akhir ini akan menjadi
tampungan awal, proses ini berlanjut terus;menerus sebagai /ungsi waktu.
%elanjutnya tampungan akhir inilah yang akan menjadi aliran tanah bila kondisi
tampungan memungkinkan. 1alam model ini tampungan awal ditentukan dengan
cara coba;coba. %ementara itu tampungan awal bulan selanjutnya ditentukan
dengan persamaan 6
B%)iS@ !%)i ; )&Flowi
1imana,
B%)iS@ tampungan awal bulan ke i S@
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Gambar 3.33. ,atio A8T9%8T
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Detail Engineering Design PLTA Genyem
Tabel 9.9@. Perhitungan 1ebit #arian Model N!"A Tahun '((G
&ulan
"ujan
P7
ampungan
ke8 Storage
"ujan
& $7
$7
*at er 7 9:e ss 7 9:e ss
Perubaha
n
ampunga
n am pungan am pungan $ li ra n $ li ra n
otal $liran1umlah$ir Permukaa
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LAPORAN ANALISA
&ulan P7 $7 otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e Moist Moist amp $ir tanah $ir tanah $ir tanah tanah n
"ari Nominal ,atio $wal $khir
m m! ha ri m m! ha ri m m! ha ri
mm!hari mm!hari
m m! har i m m! har i m m! har i mm !h ar i mm !h ar i m m! har i m3 !h ar i m3!dt
+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
1an + + %343 #0% 2---- -% #5- +-- -+% %3/+--3
-20 %%2% -0+ --/ -04 -+0 8-+% --2 35++-+4 -##
% + 522 #0% 2%%2% -% +25 +-- -+% 54#--3
-3- 53# -3/ -22 +++ -%% 8--/ -+5 0%3/-#3 +-2
3 + 55/ #0% 23+-4 -% +5- +-- -+% 523
--#
-3+ 5#% -3/ -50 +%# -%/ 8--/ -%- +-/#-4/0 +%%
# + +-5/ #0% 230#5 -% %%- +-- -+% +-23--#
-35 +-3/ -## +-- +#3 -%0 8--4 -%3 ++0325#5 +35
/ + +#3+ #0% 2#053 -% %0+ +-- -+% +#+0--#
-/+ +345 -/0 ++/ +2# -3/ 8--5 -%2 +#-445-# +43
4 + 3-- #0% 243/- -% -4+ -4# --5 %0%--#
-++ %5+ -+% +30 +/+ -3- 8--% -%0 +#0--355 +2%
2 + #%5 #0% 2443% -% -52 -0+ -++ #+2--#
-+/ #-+ -+5 +%+ +30 -%5 8--% -%/ +3%3%#-0 +/3
5 + 3%0 #0% 22-33 -% -42 -23 --0 3%---#
-+% 3-0 -+# +++ +%/ -%/ 8--% -%3 +%-#%504 +30
0 + --5 #0% 223#% -% --% -+- --+ --4--#
--- --4 --- +-- +-- -%- --- -%- +-35205+ +%-
+- + /35 #0% 223#5 -% +-0 +-- -+% /%4--#
-%- /-2 -%3 -5- +-3 -%+ 8--3 -+5 0+#%0/+ +-4
++ + ++## #0% 225/# -% %3% +-- -+% ++3+--#
-#3 +-50 -#0 -5% +3+ -%4 8--4 -%- +-3++%55 ++0
+% + #-2 #0% 250#3 -% -53 -5% -+- 302--#
-+/ 35% -+2 +-/ +%% -%# 8--% -%% ++/345-/ +3#
+3 + 554 #0% 203%/ -% +5- +-- -+% 52#--#
-3# 5#- -30 -05 +34 -%2 8--/ -%% ++/23-02 +3#
+# + 2/# #0% 5-+4/ -% +/3 +-- -+% 2#+--#
-%0 2+3 -33 +-0 +#% -%5 8--# -%# +%//%4#2 +#/
+/ + +0+- #0% 5-525 -% 355 +-- -+% +502--#
-2# +5%3 -54 ++# %-- -#- 8-++ -%0 +#0303/# +23
+4 + +3%3 #0% 5%2-+ -3 %40 +-- -+% +3+---#
-/3 +%/5 -4+ +4- %%- -## 8--5 -34 +520/3/5 %+5
+2 + +-4 #0% 530/5 -3 -%+ -3% --# +-%--#
--# -05 --/ +24 +5+ -34 8--+ -34 +5/-3/4% %+#
+5 + #44 #0% 5#-/4 -3 -0/ -0% -++ #//--#
-+0 #34 -%+ +#/ +44 -33 8--3 -3- +/5#-350 +53
+0 + /4/ #0% 5##0% -3 ++/ +-- -+% //3--#
-%3 /3- -%4 +33 +/0 -3% 8--3 -%5 +#255-%5 +2+
%- + 3#+ #0% 5/-%% -3 -40 -2/ --0 33%--#
-+# 3+5 -+4 +%2 +#3 -%0 8--% -%2 +35%05+0 +4-
%+ + +3% #0% 5/3#- -3 -%2 -#+ --/ +%2--#
--/ +%+ --4 ++/ +%+ -%# 8--+ -%3 +%+#2+5/ +#+
%% + %52 #0% 5/#4% -3 -/5 -44 --5 %20--#
-+% %42 -+3 -02 ++- -%% 8--% -%- +-/3##04 +%%
%3 + +0%2 #0% 5/2%0 -3 30+ +-- -+% +0+/--#
-5- +53/ -03 -55 +5+ -34 8-+% -%# +%/-#533 +#/
%# + 0++ #0% 52/4# -3 +5/ +-- -+% 505--#
-30 5/0 -#/ +## +50 -35 8--4 -3% +4435#++ +03
%/ + +-40 #0% 55#%3 -3 %+2 +-- -+% +-/4--#
-#4 +-+- -/3 +/+ %-# -#+ 8--2 -3# +24#4%#+ %-#
%4 + --- #0% 50#3# -3 --- -+/ --% ------
--- --- --- +43 +43 -33 --- -33 +400#4#- +02
%2 + -+/ #0% 50#3# -3 --3 -+/ --% -+3--#
--+ -+3 --+ +3+ +3+ -%4 --- -%4 +34%-3%% +/5
%5 + 2%/ #0% 50##4 -3 +#2 +-- -+% 2+%--#
-3% 45+ -34 +-/ +#+ -%5 8--/ -%# +%%##2+5 +#%
%0 + 53+ #0% 0-+%2 -3 +40 +-- -+% 5+0--#
-32 25% -#% ++3 +// -3+ 8--/ -%4 +3%5445# +/#
3- + 3+% #0% 0-0-0 -3 -43 -44 --5 3-# --/ -+# %0- -+4 +%# +#- -%5 8--% -%4 +3#5#-4- +/4
3+ + +4# #0% 0++00 -3 -33 -#+ --/ +/0--/
--2 +/+ --5 ++% +%- -%# 8--+ -%3 ++0##%/0 +35
6eb + + +%2# #2- 0+3/+ -3 %2+ +-- -+% +%43--/
-/2 +%-/ -44 -04 +4% -3% 8--0 -%# +%303#2+ +#3
% + +4% #2- 0%//4 -3 -3# -#+ --/ +/2--/
--2 +/- --5 +3- +35 -%5 8--+ -%2 +35--4+% +4-
3 + +-23 #2- 0%2-4 -3 %%5 +-- -+% +-4+--/
-#0 +-+% -/2 +++ +42 -33 8--2 -%4 +3/30/05 +/2
# + 3/+ #2- 032+5 -3 -2/ -2/ --0 3#%--/
-+4 3%4 -+5 +3# +/% -3- 8--% -%5 +#/45#2/ +40
/ + 35- #2- 0#-## -3 -5+ -53 -+- 32+--/
-+5 3/3 -%- +%% +#% -%5 8--3 -%4 +335/0-/ +//
Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan
ke8 Storage
"ujan
& $7
$7
*at er 7 9:e ss 7 9:e ss
Perubaha
n
ampunga
n am pungan am pungan $ li ra n $ li ra n
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e Moist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah
Permukaa
n
"ari Nominal ,atio $wal $khir
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LAPORAN ANALISA
"ari Nominal ,atio $wal $khir
m m! ha ri m m! ha ri m m! ha ri
mm!hari mm!hari
m m! har i m m! har i m m! har i mm !h ar i mm !h ar i m m! har i m3 !h ar i m3!dt
+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
4 + %#/ #2- 0#302 -3 -/% -/5 --2 %30--/
-++ %%2 -+3 ++3 +%4 -%/ 8--% -%# +%%2%+3+ +#%
2 + 2%# #2- 0#4%# -3 +/# +-- -+% 2+3--/
-3# 420 -30 +-+ +#- -%5 8--/ -%3 ++034+05 +35
5 + +-#0 #2- 0/3-3 -3 %%3 +-- -+% +-32--/
-/- 052 -/2 ++% +40 -3# 8--2 -%4 +3235243 +/0
0 + #+% #2- 04%0- -3 -55 -0% -++ #-+--/
-%- 35+ -%% +34 +/5 -3% 8--3 -%0 +#0+%5-- +23
+- + 20# #2- 0442+ -3 +40 +-- -+% 25%--/
-35 2## -## +%4 +2- -3# 8--4 -%5 +#2#%-55 +2+
++ + 5%2 #2- 02#+/ -3 +24 +-- -+% 5+4--/
-#- 22/ -#4 +34 +53 -32 8--4 -3+ +/54%550 +5#
+% + +/54 #2- 05+0- -3 335 +-- -+% +/2/--/
-20 +#04 -0+ +#4 %32 -#2 8-+% -34 +5#545%% %+#
+3 + +%04 #2- 00454 -3 %24 +-- -+% +%5/--/
-44 +%+0 -2/ +50 %4/ -/3 8-+- -#3 %%#34#%0 %4-
+# + /++ #2- +--0-/ -3 +-0 +-- -+% #00--/
-%4 #23 -3- %+% %#% -#5 8--# -## %3+%35-4 %45
+/ + +-#+ #2- +-+325 -3 %%+ +-- -+% +-%0--/
-/# 02/ -4% +03 %// -/+ 8--5 -#3 %%3/2352 %/0
+4 + +334 #2- +-%3/3 -3 %5# +-- -+% +3%/--/
-2- +%/# -5+ %-# %5/ -/2 8-++ -#4 %#+4223/ %5-
+2 + 35% #2- +-34-2 -3 -5+ -53 -+- 32%--/
-%- 3/% -%3 %%5 %/+ -/- 8--3 -#2 %#//3-5# %5#
+5 + ##+ #2- +-30/0 -3 -0# -0% -++ #3+--/
-%3 #-2 -%2 %-+ %%5 -#4 8--# -#% %+544%0- %/3
+0 + #+0 #2- +-#344 -3 -50 -0% -++ #-5--/
-%% 354 -%4 +5% %-5 -#% 8--3 -35 +0524/-5 %3-
%- + %%/# #2- +-#2/% -3 #5- +-- -+% %%#3--/
+%3 %+%- +#+ +44 3-5 -4% 8-+5 -#3 %%#-42-+ %/0
%+ + +33/ #2- +-452% -3 %5# +-- -+% +3%3--4
-2/ +%#5 -54 %#4 33% -44 8-++ -// %52-04+2 33%
%% + %304 #2- +-5+%- -3 /+- +-- -+% %35#--4
+32 %%#2 +/5 %44 #%3 -5/ 8-%+ -4# 3333+022 354
%3 + -+- #2- ++-342 -3 --% -+/ --% --5--4
--- --5 --+ 330 330 -45 --- -45 3/%35-+3 #-5
%# + +3# #2- ++-32/ -3 -%0 -#+ --/ +%0--4
--5 +%% --0 %2+ %5- -/4 8--+ -// %5/#-3#- 33-
%/ + %4#/ #2- ++-#02 -3 /43 +-- -+% %43#--4
+/4 %#22 +5- %%# #-# -5+ 8-%3 -/2 %05+003# 3#/
%4 + +052 #2- ++%02# -3 #%3 +-- -+% +02/--4
+%+ +5/# +#- 3%3 #43 -03 8-+5 -2# 35423+/+ ##5
%2 + +30/ #2- ++#5%5 -# %02 +-- -+% +353--4
-52 +%04 +-- 32- #2+ -0# 8-+3 -5+ #%+#0+34 #55
%5 + ##+5 #2- ++4+%# -# 0#- +-- -+% ##-2--4
%53 #+%# 3%4 322 2-% +#- 8-#% -05 /-0#+#+/ /0-
Maret + + -55 #32 +%-%#2 -# -%- -34 --# -5/--2
--4 -20 --2 /4% /45 ++# 8--+ ++3 /54//042 420
% + %-/ #32 +%-3%4 -# -#2 -4- --2 +00--2
-+# +5/ -+4 #// #2- -0# 8--% -0% #25#/55+ //#
3 + 3#5 #32 +%-/++ -# -5- -5# --0 330--2
-%3 3+/ -%2 324 #-3 -5+ 8--3 -22 #--5+235 #4#
# + %%# #32 +%-5%2 -# -/+ -4- --2 %+5--2
-+/ %-3 -+2 3%% 330 -45 8--% -44 3#+%24+4 30/
/ + 23+ #32 +%+-%0 -# +42 +-- -++ 2%---2
-#0 42- -/2 %2+ 3%5 -44 8--2 -/5 3-%0+2/+ 3/+
4 + /%+4 #32 +%+2-- -# ++0# +-- -++ /%-/--2
34+ #5## #+/ %43 425 +34 8-/# -5+ #%3#%%/2 #0-
2 + #250 #32 +%4/## -# +-04 +-- -++ #225--2
3/# ##%# #-2 /#% 0/- +0- 8-/3 +32 2++#3/#0 5%3
5 + %34- #32 +3-042 -# /#- + -- -++ %3#0 --5 +5/ %+4# %+3 24- 02% +0# 8-%5 +42 542+%3%/ +--#
0 + /#35 #32 +33+3+ -# +%## +-- -++ /#%2--5
##- #052 /-4 225 +%5# %/2 8-44 +0+ 00%+30-2 ++#5
+- + 40+ #32 +35++5 -# +/5 +-- -++ 45---0
-/0 4%+ -45 +-%2 +-0/ %+0 8--0 %+- +-0%5-//2 +%4/
++ + %#+4 #32 +35230 -# //3 +-- -++ %#-/--0
%+- %+0/ %#% 524 +++5 %%# 8-3% +0% 005#0-05 ++/4
+% + %/3# #32 +#-03# -# /5- +-- -++ %/%3--0
%%2 %%04 %4+ 50# ++// %3+ 8-3# +02 +-%##-42+ ++54
+3 + -35 #32 +#3%3- -# --0 -%5 --3 -3/--0
--3 -3+ --# 0%# 0%5 +54 --- +5/ 04%/3203 +++#
+# + +-2 #32 +#3%4+ -# -%/ -34 --# +-3--0
-+- -0# -++ 2#% 2/3 +/+ 8--+ +#0 224-%-53 505
+/ + %343 #32 +#33// -# /#+ +-- -++ %3/%--0
%+0%+33 %/+
4-3 5/# +2+ 8-33 +35 2+22-3%- 53+
Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan
ke8 Storage
"ujan
& $7
$7
*at er 7 9:e ss 7 9:e ss
Perubaha
n
ampunga
n am pungan am pungan $ li ra n $ li ra n
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e Moist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah
Permukaa
n
"ari Nominal ,atio $wal $khir
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LAPORAN ANALISA
Nominal ,atio $wal $khir
m m! ha ri m m! ha ri m m! ha ri
mm!hari mm!hari
m m! har i m m! har i m m! har i mm !h ar i mm !h ar i m m! har i m3 !h ar i m3!dt
+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
+4 + %-# #32 +#/#55 -# -#2 -4- --2 +05-+-
-+0 +20 -%% 453 2-/ +#+ 8--3 +35 2+532#42 53+
+2 + %+0 #32 +#/442 -# -/- -4- --2 %+3-+-
-%- +0% -%3 /4# /52 ++2 8--3 ++# /0#04-++ 450
+5 + -#/ #32 +#/5/0 -# -+- -%5 --3 -#%-+-
--# -35 --/ #2- #2/ -0/ 8--+ -0# #0-34%/2 /45
+0 + ++++ #32 +#/502 -# %/# +-- -++ ++---+-
+-4 00# +%% 35- /-+ +-- 8-+4 -5# #3520-#% /-5
%- + %+30 #32 +#450% -/ #0- +-- -++ %+%5-+-
%-2 +0%+ %35 #-+ 430 +%5 8-3+ -02 /-3+#302 /5%
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LAPORAN ANALISA
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7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
m m! ha ri m m! ha ri m m! ha ri
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m m! har i m m! har i m m! har i mm !h ar i mm !h ar i m m! har i m3 !h ar i m3!dt
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7/26/2019 BAB 3 ANALISA low flow.docx
http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 121/249
LAPORAN ANALISA
m m! ha ri m m! ha ri m m! ha ri
mm!hari mm!hari
m m! har i m m! har i m m! har i mm !h ar i mm !h ar i m m! har i m3 !h ar i m3!dt
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7/26/2019 BAB 3 ANALISA low flow.docx
http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 122/249
LAPORAN ANALISA
m m! ha ri m m! ha ri m m! ha ri
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7/26/2019 BAB 3 ANALISA low flow.docx
http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 123/249
LAPORAN ANALISA
m m! ha ri m m! ha ri m m! ha ri
mm!hari mm!hari
m m! har i m m! har i m m! har i mm !h ar i mm !h ar i m m! har i m3 !h ar i m3!dt
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7/26/2019 BAB 3 ANALISA low flow.docx
http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 124/249
LAPORAN ANALISA
m m! ha ri m m! ha ri m m! ha ri
mm!hari mm!hari
m m! har i m m! har i m m! har i mm !h ar i mm !h ar i m m! har i m3 !h ar i m3!dt
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7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
mm!hari mm!har
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mm!har
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mm!hari mm!hari mm!hari mm!hari mm!hari mm!hari m3!hari m3!dt
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
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n ampungan ampungan ampungan $li ran $li ran
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7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
mm!hari mm!har
i mm!hari
mm!har
i mm!hari
mm!hari mm!hari mm!hari mm!hari mm!hari mm!hari m3!hari m3!dt
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Detail Engineering Design PLTA Genyem
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Perubaha
n ampungan ampungan ampungan $li ran $li ran
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7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
mm!harii
mm!hari i
mm!hari
mm!hari mm!hari mm!hari mm!hari mm!hari mm!hari m3!hari m3!dt
+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan
ke8 Storage
"ujan
& $7
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Perubaha
n ampungan ampungan ampungan $li ran $li ran
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mm!hari mm!har
mm!harimm!har
mm!hari mm!hari mm!hari mm!hari mm!hari mm!hari mm!hari m3!hari m3!dt
7/26/2019 BAB 3 ANALISA low flow.docx
http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 130/249
LAPORAN ANALISA
mm!harii
mm!hari i
mm!hari
mm!hari mm!hari mm!hari mm!hari mm!hari mm!hari m3!hari m !dt
+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
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LAPORAN ANALISA
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LAPORAN ANALISA
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7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
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LAPORAN ANALISA
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LAPORAN ANALISA
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LAPORAN ANALISA
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LAPORAN ANALISA
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LAPORAN ANALISA
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LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
Tabel 9.9C. Perhitungan 1ebit #arian Model N!"A Tahun '((L
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LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
&ulan
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7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
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79:es
s 79:ess
Perubaha
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+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
7/26/2019 BAB 3 ANALISA low flow.docx
http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 151/249
LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater
79:es
s 79:ess
Perubaha
n ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e M oist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah
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"ari
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+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
7/26/2019 BAB 3 ANALISA low flow.docx
http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 152/249
LAPORAN ANALISA
+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater
79:es
s 79:ess
Perubaha
n ampungan ampungan ampungan $li ran $li ran
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+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
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http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 153/249
LAPORAN ANALISA
+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater
79:es
s 79:ess
Perubaha
n ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e M oist Moist amp $ir tanah $ir tanah $ir tanah
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"ari
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+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
7/26/2019 BAB 3 ANALISA low flow.docx
http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 154/249
LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater
79:es
s 79:ess
Perubaha
n ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e M oist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah
Permukaa
n
"ari
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mm!har
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+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
7/26/2019 BAB 3 ANALISA low flow.docx
http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 155/249
LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater
79:es
s 79:ess
Perubaha
n ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e M oist Moist amp $ir tanah $ir tanah $ir tanah
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"ari
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+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
7/26/2019 BAB 3 ANALISA low flow.docx
http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 156/249
LAPORAN ANALISA
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--- --- --- C@.(L #+-5 5%% --- 5%% #%2%###5- #0#/
%4 + @.KI G.CG C'LK.IH +0/ -34 -02 -+3 +5# +-- +53 --- %++ 9'.LI 3#02 400 8-%5 42% 3#0#%44%+ #-##
%2 + @L .(H G .CG C' LK.I H +0/ 33% +-- -+# +20%+--
+20+ --+ %-4- 'I.KL #5/5 02% 8%40 2-3 34//+%+%# #%3-
%5 + (.@@ G.CG C'LK.II +0/ --% -0/ -+3 ------
--- --- --- 9L.LI 3552 222 --- 222 #-#+05-5- #425
%0 + C.'C G.CG C'LK.II +0/ -25 -00 -+3 #+++--
#+- --- #2% 9@.(K 3/5+ 2+4 8-4% 4// 3#-#3+503 30#-
3- + L.9' G.CG C'LK.II +0/ +/3 +-- -+# 5+5+--
5+5 --- 0#+ 'L.HG 35-4 24+ 8+%3 435 33+00-+44 35#%
Oktober + + (.@( G.'H C'LK.II +0/ --% -0/ -+3 ------
--- --- --- 9(.CG 3-#/ 4-0 --- 4-0 3+44#/45- 344/
% + K.GG G.'H C'LK.II +0/ +5+ +-- -+3 0#%+--
0#+ --- +-5% 'C.9H 3/+5 2-# 8+#+ /4% %0%#2#23% 335/
3 + G.HC G.'H C'LK.II +0/ +-2 +-- -+3 //-+--
//- --- 433 'L.@G 3##2 450 8-53 4-2 3+/4-#4%5 34/3
# + (.@I G.'H C'LK.IL +0/ --3 -0/ -+3 --/+--
--/ --- --/ 'I.GL %243 //3 8--+ //% %52--2+%# 33%%
/ + (.(( G.'H C'LK.IL +0/ --- -0/ -+3 ------
--- --- --- ''.@@ %%++ ##% --- ##% %%050%--- %44+
4 + (.(( G.'H C'LK.IL +0/ --- -0/ -+3 ------
--- --- --- @I.HL +245 3/# --- 3/# +530+34-- %+%0
2 + (.(( G.'H C'LK.IL +0/ --- -0/ -+3 ------
--- --- --- @C.@G +#+/ %53 --- %53 +#2+3-55- +2-3
5 + @' .K@ G .'H C' LK.I L +0/ %#/ +-- -+3 +%25+--
+%22 --+ +#40 @@.9' %4-- /%- 8+0% 3%0 +2-533320 +022
0 + (.@G G.'H C'LK.IL +0/ --3 -0/ -+3 --3
+--
--3 --- --3 '(.L( %-53 #+2 --- #+4 %+4#44%#5 %/-/
+- + K.'' G.'H C'LK.IL +0/ +2/ +-- -+3 0-0+--
0-0 --- +-#/ @H.HI %2+% /#% 8+34 #-4 %+++#-/%0 %###
++ + (.CC G.'H C'LK.IL +0/ --5 -0/ -+3 -3++--
-3+ --- -34 '@.HK %%-4 ##+ 8--/ #34 %%403%/+% %4%2
+% + (.(L G.'H C'LK.IK +0/ --+ -0/ -+3 ------
--- --- --- @I.HG +24/ 3/3 --- 3/3 +53/-0-#- %+%#
+3 + (.CG G.'H C'LK.IK +0/ --0 -0/ -+3 -33+--
-33 --- -35 @C.@' +##0 %0- 8--/ %5/ +#5+45#32 +2+/
+# + @( .(@ G .'H C' LK.I K +0/ +0- +-- -+3 055+--
055 --- ++34 @@.GK %%0/ #/0 8+#5 3++ +4+42--#0 +52+
+/ + I.(K G.'H C'LK.IK +0/ +3/ +-- -+3 404+--
404 --- 5-- @L.9H %432 /%2 8+-# #%3 %+00%4554 %/#/
+4 + @.'C G.'H C'LK.IK +0/ -%3 -04 -+3 ++++--
+++ --- +%2 '@.(K %%32 ##2 8-+2 #3+ %%3025+%% %/0%
+2 + (.9' G.'H C'LK.IK +0/ --4 -0/ -+3 -+0+--
-+0 --- -%% @I.LK +5++ 34% 8--3 3/0 +5450+43# %+43
+5 + @K .C' G .'H C' LK.I K +0/ 340 +-- -+3 +0%0+--
+0%5 --+ %%+2 @C.CK 3444 233 8%50 ### %3-0+#-04 %423
+0 + (.9K G.'H C'LK.L( +0/ --2 -0/ -+3 -%2+--
-%2 --- -3+ 'K.99 %04# /03 8--# /50 3-4+/35/4 3/#3
%- + G.'I G.'H C'LK.L( +0/ +-- +-- -+3 /+#+--
/+# --- /0+ '9.I@ %04% /0% 8-22 /+/ %420/%0#3 3+-+
%+ + @( .GC G .'H C' LK.L ( +0/ %-- +-- -+3 +-#++--
+-#+ --- ++02 '9.HK 3/44 2+3 8+/4 //2 %502-#5+- 33/3
%% + 9.H( G.'H C'LK.L@ +0/ -45 -00 -+3 3#5+--
3#2 --- #-- 'L.G9 3%/% 4/- 8-/% /05 3+++#4-4# 34-+
%3 + @.9L G.'H C'LK.L@ +0/ -%4 -04 -+3 +%4+--
+%4 --- +#/ 'H.(' %2#4 /#0 8-+0 /3- %2/5%%+33 3+0%
%# + K.KH G.'H C'LK.L@ +0/ +50 +-- -+3 053+--
05% --- ++3- '@.KI 33%2 44/ 8+#2 /+5 %4034-0/% 3++5
%/ + (.(H G.'H C'LK.L@ +0/ --+ -0/ -+3 ------
--- --- --- 'H.H@ %44+ /3% --- /3% %2425+##- 3%-3
%4 + '.LK G.'H C'LK.L@ +0/ -// -02 -+3 %24+--
%24 --- 3+5 '@.'K %##2 #50 8-#+ ##5 %3%0+2/%2 %404
%2 + G.KC G.'H C'LK.L@ +0/ ++3 +-- -+3 /5++--
/5+ --- 445 @K.GI %4%/ /%/ 8-52 #35 %%22%4--% %434
%5 + @.L@ G.'H C'LK.L' +0/ -3# -04 -+3 +40+--
+40 --- +0# '@.(( %%0# #/0 8-%/ #3# %%/#%+0#% %4-0
Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater
79:es
s 79:ess
Perubaha
n ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e M oist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah
Permukaa
n
"ari
Nominal ,atio $wal $khir
mm!har
i
mm!har
i mm!hari
mm!har
i
mm!har
imm!hari mm!hari mm!hari mm!hari mm!hari mm!hari m3!hari m3!dt
+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
7/26/2019 BAB 3 ANALISA low flow.docx
http://slidepdf.com/reader/full/bab-3-analisa-low-flowdocx 157/249
LAPORAN ANALISA
%0 + (.(( G.'H C'LK.L' +0/ --- -0/ -+3 ------
--- --- --- @L.9G +53/ 342 --- 342 +0-5/#/4- %%-0
3- + (.'( G.'H C'LK.L' +0/ --# -0/ -+3 --5+--
--5 --- --0 @C.HL +#22 %0/ 8--+ %0# +/3---5#4 +22+
3+ + @K .@@ G .'H C' LK.L ' +0/ 343 +-- -+3 +502+--
+502 --+ %+5+ @@.L' 3343 423 8%5/ 355 %-+220243 %33/
No;embe
r + + '.G9 G.(K C'LK.L' +0/ -/- -02 -+% %#+
+--
%#- --- %24 'H.K( %042 /03 8-34 //2 %502252++ 33/#
% + @.'9 G.(K C'LK.L' +0/ -%# -04 -+% ++-+--
++- --- +%2 '9.I9 %/-- /-- 8-+2 #53 %/+#+5-## %0+-
3 + (.(( G.(K C'LK.L' +0/ --- -0/ -+% ------
--- --- --- '(.(( %--- #-- --- #-- %-5-%#04- %#-5
# + (.(( G.(K C'LK.L' +0/ --- -0/ -+% ------
--- --- --- @H.(( +4-- 3%- --- 3%- +44#+024- +0%4
/ + (.(H G.(K C'LK.L' +0/ --+ -0/ -+% ------
--- --- --- @'.L( +%5- %/4 --- %/4 +33+3/4-- +/#+
4 + (.(( G.(K C'LK.L' +0/ --- -0/ -+% ------
--- --- --- @(.'C +-%# %-/ --- %-/ +-4/-5#5- +%33
2 + (.(H G.(K C'LK.L' +0/ --+ -0/ -+% ------
--- --- --- L.@K 5+0 +4# --- +4# 5/%-2%-- 054
5 + '.KK G.(K C'LK.L' +0/ -/0 -05 -+% %52+--
%52 --- 33- H.GG 05/ +02 8-#3 +/# 5--0/550 0%2
0 + (.(G G.(K C'LK.L9 +0/ --+ -0/ -+% ------
--- --- --- I.LL 255 +/5 --- +/5 5+02+24- 0#0
+- + (.(G G.(K C'LK.L9 +0/ --+ -0/ -+% ------
--- --- --- H.9@ 43+ +%4 --- +%4 4//22%-- 2/0
++ + (.(( G.(K C'LK.L9 +0/ --- -0/ -+% ------
--- --- --- G.(C /-# +-+ --- +-+ /%#4+24- 4-2
+% + (.(9 G.(K C'LK.L9 +0/ --+ -0/ -+% ------
--- --- --- C.(C #-# -5+ --- -5+ #+040%-- #54
+3 + (.H( G.(K C'LK.L9 +0/ -+% -0/ -+% -#5+--
-#5 --- -// 9.'9 325 -24 8--2 -45 3///040# #+%
+# + 9.H( G.(K C'LK.L9 +0/ -2+ -00 -+3 3#5+--
3#5 --- #-- 9.(' 2-% +#- 8-/% -55 #/50#%2- /3+
+/ + (.HG G.(K C'LK.L9 +0/ -+3 -0/ -+% -/3+--
-/3 --- -4+ G.H' 4%3 +%/ 8--5 ++2 4-43//54 2-%
+4 + (.LL G.(K C'LK.L9 +0/ -+2 -04 -+% -2/ +-- -2/ --- -52 C.KL /5/ ++2 8-++ +-4 /#0453-4 434
+2 + (.(K G.(K C'LK.L9 +0/ --% -0/ -+% ------
--- --- --- C.HL #45 -0# --- -0# #545-3%- /43
+5 + (.KK G.(K C'LK.L9 +0/ -%- -04 -+% -52+--
-52 --- +-- 9.IC #2/ -0/ 8-+3 -5% #%/4020+ #03
+0 + @.LL G.(K C'LK.L9 +0/ -32 -02 -+% +24+--
+24 --- %-% 9.L( /5% ++4 8-%4 -0- #420004- /#%
%- + (.(L G.(K C'LK.L9 +0/ --+ -0/ -+% ------
--- --- --- C.HG #4/ -03 --- -03 #5302##- /4-
%+ + (.@@ G.(K C'LK.L9 +0/ --% -0/ -+% ------
--- --- --- 9.I' 32% -2# --- -2# 352+5+4- ##5
%% + (.G( G.(K C'LK.L9 +0/ -+- -0/ -+% -35+--
-35 --- -## '.KL 3#% -45 8--4 -43 3%/4+304 322
%3 + (.(( G.(K C'LK.L9 +0/ --- -0/ -+% ------
--- --- --- '.I9 %23 -// --- -// %5#%0##- 3%0
%# + '.KG G.(K C'LK.L9 +0/ -/5 -05 -+% %53+--
%53 --- 3%/ '.@K /## +-0 8-#% -44 3#/+-4+- 300
%/ + (.9G G.(K C'LK.L9 +0/ --2 -0/ -+% -%3+--
-%3 --- -%4 C.9G #4+ -0% 8--3 -50 #4+04//+ /3/
%4 + (.(H G.(K C'LK.L9 +0/ --+ -0/ -+% ------
--- --- --- 9.HK 340 -2# --- -2# 35343/%- ###
%2 + (.(( G.(K C'LK.L9 +0/ --- -0/ -+% ------
--- --- --- '.KG %0/ -/0 --- -/0 3-40-#-- 3//
%5 + '.GG G.(K C'LK.L9 +0/ -/- -02 -+% %#3+--
%#3 --- %20 '.9H /+/ +-3 8-34 -42 3#4/5342 #-+
%0 + '.(@ G.(K C'LK.L9 +0/ -#- -02 -+% +50
+--
+50 --- %+2 C.@' 43- +%4 8-%5 -05 /-2##3%# /52
3- + (.(( G.(K C'LK.L9 +0/ --- -0/ -+% ------
--- --- --- G.(C /-# +-+ --- +-+ /%35324- 4-4
'esember + + C.9C C.KH C'LK.L9 +0/ -52 +-- -+% #%%+--
#%% --- #5/ C.(9 555 +25 8-43 ++# /0##3#/# 455
% + H.IC C.KH C'LK.L9 +0/ +34 +-- -+% 44%+--
44+ --- 24- I.@( +#2+ %0# 8-00 +0/ +-+345+/4 ++23
3 + '.HC C.KH C'LK.LC +0/ -/3 -02 -+% %/++--
%/+ --- %50 @@.II +#44 %03 8-35 %// +3%5+%#02 +/32
# + L.K' C.KH C'LK.LC +0/ +5- +-- -+% 520+--
520 --- +-++ @@.I' %+53 #32 8+3% 3-/ +/5#04/## +53#
/ + @.9' C.KH C'LK.LC +0/ -%2 -04 -+% +%-+--
+%- --- +35 @I.CI +55# 322 8-+5 3/0 +544%#533 %+4-
Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater
79:es
s 79:ess
Perubaha
n ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e M oist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah
Permukaa
n
"ari
Nominal ,atio $wal $khir
mm!har
i
mm!har
i mm!hari
mm!har
i
mm!har
imm!hari mm!hari mm!hari mm!hari mm!hari mm!hari m3!hari m3!dt
+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
4 + 9.'K C.KH C'LK.LC +0/ -44 -00 -+% 3+2+--
3+2 --- 34/ @G.(I +52% 32# 8-#5 3%2 +4004+5-3 +042
2 + '.LH C.KH C'LK.LC +0/ -/5 -05 -+% %2#+--
%2# --- 3+/ @C.KL +5+3 343 8-#+ 3%+ +42+/+-#2 +03/
5 + @H .HG C .KH C' LK.L C +0/ 334 +-- -+% +4/3+--
+4/% --+ +0-- @C.G( 33/- 42- 8%#5 #%% %+0/#%24- %/#+
0 + @K .@@ C .KH C' LK.L G +0/ 35/ +-- -+% +505+--
+502 --+ %+5% 'H.L( #54% 02% 8%5/ 455 3/24/0+4+ #+#-
+- + '.CG C.KH C'LK.LH +0/ -#0 -02 -+% %33+--
%33 --- %45 9L.K( #+/2 53+ 8-3/ 202 #+#%+3+24 #20#
++ + @9 .H9 C .KH C' LK.L H +0/ %2/ +-- -+% +3/- +-- +3/- --+ +//% 99.'H #525 024 8%-% 223 #-%-#0-+# #4/3
+% + 9.K( C.KH C'LK.LH +0/ -20 -00 -+% 325+--
322 --- #3# 9K.(9 #332 542 8-/2 5++ #%+/4303/ #520
+3 + I.IL C.KH C'LK.LH +0/ +/2 +-- -+% 244+--
24/ --- 55- 9C.HK #3#0 52- 8++/ 2// 30%434435 #/##
+# + @.@L C.KH C'LK.LI +0/ -%# -04 -+% +-4+--
+-4 --- +%% 9C.IK 34-% 2%- 8-+4 2-# 344%52+#4 #%30
+/ + @K .@@ C .KH C' LK.L I +0/ 35/ +-- -+% +505+--
+502 --+ %+5% 'L.L@ /-43 +-+3 8 %5/ 2%5 3254--4%0 #35%
+4 + @K .CG C .KH C' LK.L L +0/ 30% +-- -+% +03%+--
+03% --+ %%%+ C(.G@ 4%2% +%/# 8 %0- 04/ /-+43%0+# /5-4
+2 + @.CC C.KH C'LK.LL +0/ -%0 -04 -+% +3%+--
+3% --- +/% G(.@L /+2- +-3# 8-%- +-+# /%23353%0 4+-3
+5 + (.'G C.KH C'LK.LL +0/ --/ -0/ -+% -+3+--
-+3 --- -+/ [email protected] #+/+ 53- 8--% 5%5 #3-45+-02 #05/
+0 + '.(@ C.KH C'LK.LL +0/ -#+ -02 -+% +50+--
+50 --- %+5 99.'@ 3/30 2-5 8-%5 420 3/3%/-0/0 #-50
%- + G.'I C.KH C'LK.LL +0/ +-4 +-- -+% /+/+--
/+# --- /0% 'L.9@ 3#%3 45/ 8-22 4-2 3+/5+#5-/ 34//
%+ + C.H@ C.KH C'LK.LK +0/ -03 +-- -+% ##0+--
##0 --- /+4 'I.9L 3%/# 4/+ 8-42 /53 3-3#+5+%# 3/+%
%% + @H .HK C .KH C' LK.L K +0/ 334 +-- -+% +4/4+--
+4/4 --+ +0-# 'H.(9 #/-2 0-+ 8%#5 4/3 3304---#5 303+
%3 + '.L@ C.KH C'LK.LK +0/ -/2 -05 -+% %40+--
%45 --- 3-0 9H.(H 30+# 253 8-#- 2#3 354+/+%4+ ##40
%# + (.@@ C.KH C'LK.K( +0/ --% -0/ -+% ---
---
--- --- --- [email protected]@ 3+3+ 4%4 --- 4%4 3%/42-5-- 3240
%/ + I.@C C.KH C'LK.K( +0/ +## +-- -+% 2-++--
2-+ --- 5-4 'G.(G 33++ 44% 8+-/ //2 %5040%#+- 33/3
%4 + @.(K C.KH C'LK.K( +0/ -%% -04 -+% -02+--
-02 --- ++% 'H.CK %24- //% 8-+/ /35 %20/%3340 3%3/
%2 + L.HI C.KH C'LK.K( +0/ +2/ +-- -+% 5//+--
5/# --- 05% ''.(L 3+0+ 435 8+%5 /+- %4/%+-+55 3-2-
%5 + (.L' C.KH C'LK.K( +0/ -+4 -04 -+% -2-+--
-2- --- -5- 'G.G9 %433 /%2 8-+- /+4 %45320-4+ 3+-4
%0 + '9 .CH C .KH C' LK.K ( +0/ #23 +-- -+% %33#+--
%333 --+ %453 '@.(H #250 0/5 83/- 4-5 3+4+-4205 34/0
3- + I.K@ C.KH C'LK.K@ +0/ +/0 +-- -+% 225+--
225 --- 50/ 9L.9@ #2%4 0#/ 8++2 5%5 #3-5+/-/% #054
3+ + @( .CG C .KH C' LK.K @ +0/ %++ +-- -+% +-33+--
+-33 --- ++52 9I.L@ #045 00# 8+// 530 #34+#4545 /-#5
Detail Engineering Design PLTA Genyem
7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
Gambar 3.3/. %ola $ebit Harian Model ,8CA Tahun 200/
Detail Engineering Design PLTA Genyem
Tabel 9.9G. Perhitungan 1ebit #arian Model N!"A Tahun '((K
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater 79:ess 79:ess Perubahan ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e Moist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah Permukaan
"ari Nominal ,atio $wal $khir
mm!hari mm!hari mm!hari
mm!hari mm!hari
mm!hari mm!hari mm!hari mm!hari mm!hari mm!hari m3!hari m3!dt
7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
1an + + -#- #0% #%500+ +50 --5 -0/ -+% -%5+--
-%5 --- -33 325+ 35+3 243 8--# 2/5 30#32%40# #/4#
% + /%4 #0% #%500% +50 +-2 +-- -+% /+#+--
/+% --% /50 3-/+ 34#- 2%5 8-22 4/+ 335/525#2 30+0
3 + -/% #0% #%5003 +50 -++ -0/ -+% -#-+--
-#- --- -#4 %0+% %0/5 /0% 8--4 /54 3-#/%-4+/ 3/%/
# + %%#- #0% #%5003 +50 #// +-- -+% %%%5 +-- %%%+ --2 %//# %342 #0%+ 05# 8333 4/+ 335/%+/0# 30+5
/ + +20 #0% #%0--- +50 -34 -02 -+% +42+--
+44 --- +0+ 3032 #+%5 5%4 8-%/ 5-+ #+43%23-% #5+0
4 + 5%5 #0% #%0--- +50 +45 +-- -+% 5+/+--
5+3 --% 03/ 33-% #%32 5#2 8+%% 2%/ 322%///%3 #344
2 + +3-/ #0% #%0--3 +50 %4/ +-- -+% +%03+--
+%50 --# +#53 330- #52% 02# 8+03 25+ #-4+44/0/ #2-+
5 + 230 #0% #%0--2 +50 +/- +-- -+% 2%4+--
2%# --% 533 3505 #23+ 0#4 8+-0 535 #3//++225 /-#+
0 + -40 #0% #%0--0 +50 -+# -0/ -+% -/2+--
-/2 --- -44 325/ 35/+ 22- 8--0 24% 30/055-%3 #/53
+- + 3%0 #0% #%0--0 +50 -42 -00 -+% 3+2+--
3+4 --+ 34# 3-5- 3### 450 8-#2 4#+ 333/%%3/3 354-
++ + %-0% #0% #%0-+- +50 #%/ +-- -+% %-5-+--
%-23 --4 %35# %2// /+#- +-%5 83++ 2+2 32%5-224# #3+/
+% + +5- #0% #%0-+4 +50 -32 -02 -+% +45+--
+45 --+ +03 #++% #3-/ 54+ 8-%/ 534 #3#4-%2%/ /-3-
+3 + 3#4 #0% #%0-+2 +50 -2- -00 -+% 33#+--
333 --+ 353 3### 35%2 24/ 8-/- 2+/ 32%--4+%+ #3-4
+# + ++%4 #0% #%0-+5 +50 %%0 +-- -+% +++3+--
+++- --3 +%22 3-4+ #335 545 8+42 2-+ 34#/4-5+4 #%+0
+/ + %/0- #0% #%0-%+ +50 /%4 +-- -+% %/22+--
%/2- --5 %0// 3#2- 4#%/ +%5/ 835/ 0-- #425-4442 /#+#
+4 + +/0 #0% #%0-%0 +50 -3% -04 -+% +#5+--
+#2 --- +40 /+#- /3-0 +-4% 8-%% +-#- /#-2-//// 4%/5
+2 + -#3 #0% #%0-%0 +50 --0 -0/ -+% -3+
+--
-3+ --- -34 #%#5 #%53 5/2 8--/ 5/% ##3-#%+00 /+%5
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater 79:ess 79:ess Perubahan ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e Moist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah Permukaan
"ari Nominal ,atio $wal $khir
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LAPORAN ANALISA
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7/26/2019 BAB 3 ANALISA low flow.docx
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater 79:ess 79:ess Perubahan ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e Moist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah Permukaan
"ari Nominal ,atio $wal $khir
mm!hari mm!hari mm!hari
mm!hari mm!hari
mm!hari mm!hari mm!hari mm!hari mm!hari mm!hari m3!hari m3!dt
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7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
%/ + ( .CL 9 .KC #%03-- +50 -+% -0/ --0 -35 -35 --- -## /-35 /-5% +-+4 8--4 +-++ /%//3%//3 4-53
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+535 --/ %++# #-44 4+20 +%34 8%24 04- #00%533#5 /220
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+0/ --+ %%# 23%2 2//+ +/+- 8-%0 +#5+ 22-++-5%% 50+3
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%45 --+ 3-5 4-#+ 43#0 +%2- 8-#- +%3- 430#+43-2 2#-+
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+--
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--- --- --- #424 #424 03/ --- 03/ #54%2404- /4%5
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7/26/2019 BAB 3 ANALISA low flow.docx
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater 79:ess 79:ess Perubahan ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e Moist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah Permukaan
"ari Nominal ,atio $wal $khir
mm!hari mm!hari mm!hari
mm!hari mm!hari
mm!hari mm!hari mm!hari mm!hari mm!hari mm!hari m3!hari m3!dt
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7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
+% + @C.HH 9 .L' #%03/4 +50 35# +-- -+- +#/2 +#/3 --# +42+ 5#/ %/+4 /-3 8%+5 %5/ +#53%#%-0 +2+2
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%/- --+ %55 +40# +05+ 304 8-35 3/0 +54/#5+4- %+/0
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+--
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--- --- --- 2%5 2%5 +#4 --- +#4 2/4244#- 524
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
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& $7
$7
*ater 79:ess 79:ess Perubahan ampungan ampungan ampungan $li ran $li ran
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tanah Permukaan
"ari Nominal ,atio $wal $khir
mm!hari mm!hari mm!hari
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--- --- --- +/0- +/0- 3+5 --- 3+5 +4/344%#- +0+#
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LAPORAN ANALISA
%0 + C .KC G .CG #%0#%5 +50 -0+ +-- -+# #5-+--
#20 --+ //- +%2% +5%% 34# 8-2% %03 +/%%-#-0/ +24%
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Oktober + + ( .@G G .'H #%0#%0 +50 --3 -0/ -+3 --3+--
--3 --- --3 ++2/ ++25 %34 --- %3/ +%%330-32 +#+4
% + @@.(( G .'H #%0#%0 +50 %-0 +-- -+3 +-52+--
+-5# --3 +%#4 0#3 %+50 #35 8+43 %2/ +#3+-2++5 +4/4
3 + @9.@L G .'H #%0#3% +50 %/- +-- -+3 +3-#
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+3-+ --# +#04 +2/+ 3%#2 4#0 8+0/ #/# %34%-55-% %23#
# + ( .(( G .'H #%0#34 +50 --- -0/ -+3 ------
--- --- --- %/02 %/02 /+0 --- /+0 %2-+3324- 3+%2
/ + H .GK G .'H #%0#34 +50 +%/ +-- -+3 4#4+--
4## --% 2#- %-25 %5+5 /4# 8-02 #42 %#%550#-# %5++
4 + @@.(C G .'H #%0#35 +50 %+- +-- -+3 +-0++--
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--+ --- --+ %5-# %5-4 /4+ --- /4+ %0+2-#454 3324
5 + 9 .@' G .'H #%0##+ +50 -/0 -05 -+3 %00+--
%05 --+ 3#3 %%#/ %/52 /+2 8-#/ #23 %#/5%/0/- %5#/
0 + L .LC G .'H #%0##% +50 +45 +-- -+3 52++--
545 --3 000 %-2- 3-45 4+# 8+3- #53 %/+32/530 %0-0
+- + C .CI G .'H #%0##/ +50 -5/ -00 -+3 #3#+--
#33 --+ #05 %#// %0/% /0- 8-4/ /%4 %23%5/2+/ 3+43
++ + ( .(G G .'H #%0##4 +50 --+ -0/ -+3 ------
--- --- --- %34% %34% #2% --- #2% %#/43##5- %5#3
+% + ( .CC G .'H #%0##4 +50 --5 -0/ -+3 -3++--
-3+ --- -34 +50- +0%4 35/ 8--/ 35- +025+3#%/ %%0-
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//% --% 43/ +/#- %+2/ #3/ 8-53 3/% +53+2%+%- %+%-
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--- --- --- ++33 ++33 %%2 --- %%2 ++252-#5- +34#
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+5# --+ %++ %2%5 %030 /55 8-%5 /4- %0+34+035 332%
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--- --- --- %#0+ %#0+ #05 --- #05 %/0+--#-- %000
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344 --+ #%+ %+%2 %/#5 /+- 8-// #// %34#4++55 %232
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--- --- --- %-30 %-30 #-5 --- #-5 %+%-%455- %#/#
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--- --- --- +43+ +43+ 3%4 --- 3%4 +404%+0%- +043
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Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater 79:ess 79:ess Perubahan ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e Moist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah Permukaan
"ari Nominal ,atio $wal $khir
mm!hari mm!hari mm!hari
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LAPORAN ANALISA
2 + 9 .GK G .(K #%0#23 +0- -2+ -00 -+3 3#2+--
3#4 --+ 302 53/ +%3% %#4 8-/% +0/ +-+%+0#%0 ++2%
5 + ( .C( G .(K #%0#2# +0- --5 -0/ -+% -%5+--
-%5 --- -3% 054 +-+5 %-# 8--# +00 +-32-+0#0 +%--
0 + K .LL G .(K #%0#2# +0- +0# +-- -+3 024+--
023 --3 +++0 5+/ +033 352 8+#4 %#+ +%/+24/0% +##0
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--- --- --- +/#2 +/#2 3-0 --- 3-0 +4-530+%- +54%
++ + ( .(( G .(K #%0#22 +0- --- -0/ -+% ---
---
--- --- --- +%32 +%32 %#2 --- %#2 +%542-55- +#50
+% + ( .(( G .(K #%0#22 +0- --- -0/ -+% ------
--- --- --- 00- 00- +05 --- +05 +-%032+%- ++0+
+3 + ( .(( G .(K #%0#22 +0- --- -0/ -+% ------
--- --- --- 20% 20% +/5 --- +/5 5%3#0%5- 0/3
+# + ' .@9 G .(K #%0#22 +0- -#% -02 -+% %-++--
%-- --+ %3- 433 54# +23 8-3- +#3 2#%-+5#4 5/0
+/ + ( .(I G .(K #%0#25 +0- --+ -0/ -+% ------
--- --- --- 40+ 40+ +35 --- +35 2+5##%#- 53%
+4 + H .GK G .(K #%0#25 +0- +%0 +-- -+3 4#4+--
4## --% 2#+ //3 +%0# %/0 8-02 +4% 5#%242%/ 02/
+2 + @9.K9 G .(K #%0#20 +0- %2# +-- -+3 +35-+--
+324 --# +/53 +-3/ %4+5 /%# 8%-4 3+2 +4#5205-3 +0-5
+5 + @(.9C G .(K #%0#53 +0- %-3 +-- -+3 +-%++--
+-+5 --3 ++2+ %-0# 3%4/ 4/3 8+/3 /-- %4-+3%#-3 3-++
+0 + @@.CI G .(K #%0#54 +0- %%/ +-- -+3 ++3/+--
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%+ + ( .(( G .(K #%0#03 +0- --- -0/ -+% ------
--- --- --- 3##/ 3##/ 450 --- 450 3/53+%%#- #+#2
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--- --- --- %+/% %+/% #3- --- #3- %%3243%5- %/0-
%4 + L .9K G .(K #%0#04 +0- +4/ +-- -+3 5%4+--
5%# --% 0#2 +2%+ %445 /3# 8+%# #+- %+3%2/55% %#45
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--2 --- --5 %+3/ %+#3 #%0 8--+ #%5 %%%3-5/%+ %/23
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4## --% 2#+ +2+# %#// #0+ 8-02 30# %-/-53%/2 %32#
%0 + ( .(( G .(K #%0/-- +0- --- -0/ -+% ------
--- --- --- +04# +04# 303 --- 303 %-#%45#5- %34#
3- + H .LG G .(K #%0/-- +0- +3/ +-- -+3 423+--
42+ --% 22+ +/2+ %3#3 #40 8+-+ 345 +0+3+%/5# %%+#
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--5 --- -+- +52# +55# 322 8--+ 32/ +0/%#%-2# %%4-
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LAPORAN ANALISA
Gambar 3.3. %ola $ebit Harian Model ,8CA Tahun 200
Tabel 9.9H. Perhitungan 1ebit #arian Model N!"A Tahun '(@(
Detail Engineering Design PLTA Genyem
&ulan
"ujan
P7
ampungan ke8 Storage
"ujan
& $7
$7
*ater 79:ess 79:ess Perubahan ampungan ampungan ampungan $li ran $li ran
otal $liran1umlahharian lengasan awal ,atio P7 P7 &alan:e Moist Moist amp $ir tanah $ir tanah $ir tanah
$ir
tanah Permukaan
"ari Nominal ,atio $wal $khir
mm!hari mm!hari mm!hari
mm!hari mm!hari
mm!hari mm!hari mm!hari mm!hari mm!hari mm!hari m3!hari m3!dt
+ % 3 # / 4 2 5 0 +- ++ +% +3 +# +/ +4 +2 +5 +0 %-
+ --
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LAPORAN ANALISA
1an + + -%# #0% #%04-0 +0 --/ -0/ -+% -+%+--
-+% --- -+# 4#-# 4#+5 +%5# 8--% +%5% 444#0-#%# 22+#
% + +255 #0% #%04-0 +0 343 +-- -+% +22/+--
+22- --/ %-34 /+3# 2+2- +#3# 8%44 ++45 4-24+-502 2-33
3 + 440 #0% #%04+# +0 +34 +-- -+% 4/2+--
4// --% 2/3 /234 4#50 +%05 8-05 +%-- 4%320+3/- 2%%-
# + --- #0% #%04+4 +0 --- -0/ -+% ------
--- --- --- /+0+ /+0+ +-35 --- +-35 /3055455- 4%#0
/ + +0+5 #0% #%04+4 +0 350 +-- -+% +0-4
+--
+0-- --/ %+5/ #+/3 4335 +%45 8%5/ 053 /+-0/#3#/ /0+#
4 + +53 #0% #%04%% +0 -32 -02 -+% +2++--
+2+ --- +04 /-2- /%42 +-/3 8-%4 +-%5 /3##320/% 4+54
2 + 405 #0% #%04%% +0 +#% +-- -+% 45/+--
45# --% 254 #%+# /--- +--- 8+-3 502 #444#5+32 /#-+
5 + +-+ #0% #%04%# +0 -%- -04 -+% -50+--
-50 --- +-% #--- #+-% 5%- 8-+3 5-2 #+04/2#-3 #5/2
0 + 22% #0% #%04%# +0 +/2 +-- -+% 24-+--
2/5 --% 52% 3%5+ #+/3 53+ 8++# 2+2 32%2200#0 #3+/
+- + 452 #0% #%04%4 +0 +#- +-- -+% 42/+--
423 --% 22# 33%% #-04 5+0 8+-+ 2+5 323/-003# #3%3
++ + -++ #0% #%04%5 +0 --% -0/ -+% ------
--- --- --- 3%22 3%22 4// --- 4// 3#-5-35#- 30##
+% + %%- #0% #%04%5 +0 -#/ -02 -+% %-5+--
%-5 --+ %30 %4%% %54+ /2% 8-3+ /#+ %5+%54#4# 3%/4
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%4#3 --2 3-30 %%55 /3%2 +-4/ 8304 440 3#20%405# #-%2
+# + 305+ #0% #%0434 +0 5-5 +-- -+% 3045+--
30/2 -++ #//+ #%4% 55+3 +243 8/0# ++40 4-254+0%- 2-3/
+/ + 3030 #0% #%04#5 +0 5-- +-- -+% 30%2+--
30+4 -++ #/-3 2-/- ++//3 %3++ 8/52 +2%3 504+%%-+- +-32%
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Detail Engineering Design PLTA Genyem
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"ujan
P7
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LAPORAN ANALISA
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LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
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LAPORAN ANALISA
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"ujan
P7
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LAPORAN ANALISA
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LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
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LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
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LAPORAN ANALISA
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LAPORAN ANALISA
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LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
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LAPORAN ANALISA
Gambar 3.!2. %ola $ebit Harian Model ,8CA Tahun 2012
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7/26/2019 BAB 3 ANALISA low flow.docx
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LAPORAN ANALISA
Gambar 3.!3. %ola $ebit Harian Model ,8CA Tahun 2013
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Tabel 9.C(. Perhitungan 1ebit #arian Model N!"A Tahun '(@C
&ulan
"ujan
P7
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$7
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LAPORAN ANALISA
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LAPORAN ANALISA
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LAPORAN ANALISA
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Detail Engineering Design PLTA Genyem
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LAPORAN ANALISA
Gambar 3.!(. %ola $ebit Harian Model ,8CA Tahun 200( : 201!
Detail Engineering Design PLTA Genyem
Gambar %.+,. Sedangkan mengginakan m#del "'<;A berikut ini adalah hasil debit rerata 5
(arian pada 7utlet DAS 1#kasi P1$A Genyem :
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Tabel 9.C@. Tabel ekapitulasi 1ebit erata G #arian Model N!"A
Tahun '((G ; '((H
Tahun
Bulan
G#arian
1ebit
Bulan
G#arian
1ebit
Tahun
Bulan
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1ebit
Bulan
G#arian
1ebit
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L '((H @ *@L.I
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9 L *9'.(
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I 9
9H ' 9@ K
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Tahun
Bulan
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Detail Engineering Design PLTA Genyem
Tabel 9.C9. Tabel ekapitulasi 1ebit erata G #arian Model N!"A Tahun '((K ; '(@@
Tahun BulanG#arian 1ebit Bulan
G#arian 1ebit Tahun Bulan
G#arian 1ebit Bulan
G#arian 1ebit Tahun Bulan
G#arian 1ebit Bulan
G#arian 1ebit
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LAPORAN ANALISA
' * GL.@' L * G.KK ' * GL.@' L * G.KK ' * H L * @'.GI
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Detail Engineering Design PLTA Genyem
$* I.LG $* LH.'@ $* I.LG $* LH.'@ $* 9(.H' $* @(L.HL
Tabel 9.CC. Tabel ekapitulasi 1ebit erata G #arian Model N!"A Tahun '(@' ; '(@C
Tahun BulanG#arian 1ebit Bulan
G#arian 1ebit Tahun Bulan
G#arian 1ebit Bulan
G#arian 1ebit Tahun Bulan
G#arian 1ebit Bulan
G#arian 1ebit
'(@' @ *@''.I
H I * ''.(( '(@9 @ * '@.L@ I * [email protected] '(@C @ * KK.CH I * [email protected]@@L @
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LAPORAN ANALISA
** 9C.I' ** @@.'C **
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Detail Engineering Design PLTA Genyem
H * 99.L9 @' *@(L.C
L H * ''.H9 @' * 'G.I( H * 'H.L( @' * L(.K9
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LAPORAN ANALISA
Gambar 3.!-. %ola $ebit ,erata ( Harian Model ,8CA Tahun 200( : 201!
Detail Engineering Design PLTA Genyem
%.&2.+.(asil Analisa D;1#kasi !endung P1$A Genyem Pem#delan "'<;A
Tabel 9.CG. Flow 1uration Titik >utlet okasi PTA )enyem Model
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y
N!"A
P
1ebitm9=det P
1ebitm9=det P
1ebitm9=det
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Detail Engineering Design PLTA Genyem
'( GH.'I GC '9.'L LL G.HK
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'@ GC.9I GG ''.GG LK G.@(
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9' C(.LK HH @I.@C @(( (.((
Detail Engineering Design PLTA Genyem
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LAPORAN ANALISA
Gambar 3.!/. %lot 7$C oasi endung %TA Gen)em Model ,8CA
Detail Engineering Design PLTA Genyem
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LAPORAN ANALISA
Gambar 3.!. %lot 7$C oasi endung %TA Gen)em Model AVSWAT dan ,8CA
Detail Engineering Design PLTA Genyem
%.&%. esimpulan
!erdasakan data lapangan yang ada maka disimpulkan bahwa debit pem#delan A8S)A$
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2000 yang di pakai untuk peren3anaan P1$A Genyem ini karena hasil pendekatanbangkitan hujan pem#delan A8S)A$ lebih mendekati nilai Debit di lapangan.
Tabel 9.CH. Flow 1uration Titik >utlet okasi PTA )enyem 1ebit
apangan
P
1ebit
m9=det P
1ebitm9=de
t P
1ebitm9=de
t@ @GI.99 9C @I.HI HI I.@@
' @'9.L9 9G @I.@G HL H.LG
9 @(L.GC 9H @H.GH HK H.I@
C KG.HH 9I @H.@@ I( H.GK
G L(.G9 9L @G.L9 I@ H.CI
H [email protected] 9K @G.(K I' H.9K
I H9.'H C( @C.HK I9 H.'KL GL.@' C@ @C.@K IC H.(L
K G9.I@ C' @9.I( IG G.I9
@( CK.LL C9 @9.'9 IH G.CI
@@ CC.IL CC @'.KL II G.@L
@' C( HH CG @' II IL G ('
Detail Engineering Design PLTA Genyem
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