kul humidifikasi 4-2
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SISTEM SIRKULASI AIR PENDINGIN
SIRKULASI TERTUTUP (CLOSED
CIRCULATION SYSTEM)SIRKULASI TERBUKA (OPENED
CIRCULATION SYSTEM)
SISTEM SEKALI LEWAT (ONCE THROUGH
CIRCULATION)
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cooler /
conen!or
Pen"#$%n&
"'r 'n&'n
Pen"#$%n&
"'r $"n"!
A'r 'n&'n
A'r $"n"!
c'ller
SIRKULASI
TERTUTUP
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cooler / conen!or
COOLING
TOWER
%"r"
M"e %$
*"+er
Pen"#$%n&
"'r 'n&'n
Pen"#$%n&
"'r $"n"!
A'r 'n&'n
A'r $"n"!
A'r $"n"!
SIRKULASI
TERBUKA
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ONCE THROUGH
SYSTEM
COOLER /
CONDENSER
AIR LAUT
A'r 'n&'n
A'r $"n"!
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COOLING
TOWER
natural
circulationtowr!
"c#anical
$ra%t towr!
At"o!ric
towr
Natural $ra%t
'orc$ $ra%t
In$uc$ $ra%t
S&ra( towr
S&ra( c#a")r
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I!'"n
($"c'n&)
no,,leA'r $"n"!
U"r"
A'r 'n&'nBASIN
lo%-er!
ATMOSPHERIC
TOWER
. 012 3 4 #$ (#'n'#"l)
2 3 5 #$ (o$+'#"l)
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UDARA
NATURAL DRA'T
UDARA
BASIN
no,,le
I!'"n
($"c'n&)
Dr'6+ ele#'n"+or
cero7on&
AIR DINGIN
Te#$er"+%r "n %#''+8%"r" ren"
AIR PANAS
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AIR PANAS
BASIN
AIR DINGIN
UDARA
9AN
'!'"n
'ORCE DRA'T
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UDARA
BASIN
I!'"n
($"c'n&)
AIR PANAS
UDARA
AIR DINGIN
Dr'6+ ele#'n"+or
9AN
lo%-er!
INDUCE DRA'T:;;;
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*
?: ;
?0 ?
?
!L
Lt
LH
!
SG!
Y
Gt
!H
!
1L
!
2L
2Lt
2LH
1Lt
1LH
!
SG
!
SG
!
1
Y
!
2Y
1Gt
2Gt
!
1H
!
2H
!
SG
1! dLL +
LL dtt +
LL dHH +
!! dYY +GG
dtt +
!! dHH +
+
,
A'r $"n"!
A'r 'n&'n
U"r" #"!%
U"r" el%"r
!
1
!
2 YY >
12 GG tt >
!
1
!
2 HH >
12 LL tt >
12 LL HH >!
1
!
2 LL >
11
11
11
GL
GL
GL
tt
tt
tt
=
>
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AIRUDARA
PUNCAK MENARA
DASAR MENARA
!Y
!Y
U"$ "'r
U"$ "'rintr%ac
!
iY
!
iY
it
it
xt
xt
yt
yt
P"n"! !en!'7el
P"n"! !en!'7el
P"n"! l"+en
P"n"! !en!'7el P"n"! !en!'7el
P"n"! l"+en
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Per7e""n +e#$er"+%r el%"r #en"r" "n +e#$er"+%r *e+7%l7 %"r" #"!% '!e7%+ "$$ro"c(+L:< +*:) = < 2 o9
Per7e""n +e#$er"+%r "'r el%"r #en"r" "n +e#$er"+%r "'r#"!% '!e7%+ r"n&e(+L0< +L:)
T'n&&' #en"r"'+en+%"n "r' R"n&e "$$ro"c1 R"n&e 02
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PROSES KONTAK CAIR< (GASUAP)
TERJADI PERPINDAHAN PANAS MASSA SECARASIMULTAN E9ISIENSI DIPENGARUHI OLEH
:1 LUAS PERMUKAAN BIDANG KONTAK
(INTER9ACIAL SUR9ACE AREA)
< PEMAKAIAN NO??LE< BAHAN ISIAN (PACKING) LUAS
DAN TURBULENSI 9LUIDA1
01 WAKTU KONTAK
< PEMASANGAN BA99LE (TRAY PLATE
PACKING)
41 DRI.ING 9ORCE
(PERBEDAAN SUHU / PERBEDAAN TEKANAN
PARSIEL UAP)
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,
D'!c"r&e : +e+e! / e+
9ee : +e+e! / e+
2
21 gz=
? :5 6+KOLOM
I
KOLOM
II
Waktu kontak (det) 1 5
Jumlah tetes 1 5
III
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