performance of pumps 2015

7/23/2019 Performance of Pumps 2015

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MEC 554 THERMOFLUIDS LAB: PERFORMANCE OF PUMPS

UNIVERSITI TEKNOLOGI MARAFAKULTI KEJURUTERAAN MEKANIKAL

Program : Bachelor Of Engineering ( Hons ) Mechanical Kursus : Thermalfluids lab Kod Kursus : MEC 554 Pensyarah : ENCIK MOHD !H"I # MOHD "OD!I

Laboratory Report

Title

PERFORMANCE OF PMP!

No Names UiTM No. Signature

1. Usmar Aiman !in A"#ar $%1&'(%1''

$. A#ma) Na*ui+u))in !in Rasi) $%1&,%$-(,

&. A#ma) Almi"an !in #e Omar $%1&$-'/1'

'. Aimi 0in E"ani $%1&$1$-1$

-.A#ma) ani22 ilmu))in !in Mo#)Na3i

$%1&$4'/',

$essi mali : Pengesahan $%af :(Tarikh) (T. Tangan)

Penyerahan &a'oran : Pengesahan $%af :(Tarikh) (T. Tangan)

1


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ContentsTable of Figures...............................................................................................................................3

1.0 INTRODUCTION.....................................................................................................................4

1.1 Pump......................................................................................................................................4

1.2 Cenrifugal pump...................................................................................................................4

2.0 O!"#CTI$#..............................................................................................................................%

3.0 TOR#TIC'( !'C)*ROUND...........................................................................................+

4.0 PROC#DUR#............................................................................................................................,

4.1 'PP'R'TU-.........................................................................................................................,

.........................................................................................................................................................

.........................................................................................................................................................

.........................................................................................................................................................

4.2 #/P#RI#NT'( PROC#DUR#........................................................................................

4.2.1 Preliminaries...................................................................................................................

4.2.2 'ual #perimen..........................................................................................................

%.0 D'T' 'N'(-I-...................................................................................................................10

%.1 D'T' T'!U('TION 'ND R#-U(T 'N'(-I-............................................................10

%.1.1 T#-T 1..........................................................................................................................10

%.1.2 T#-T 2..........................................................................................................................11

%.1.3 T#-T 3..........................................................................................................................12

%.2 -'P(# C'(CU('TION.................................................................................................13

+.0 DI-CU--ION..........................................................................................................................14

,.0 CONC(U-ION........................................................................................................................1%

.0 R#F#R#NC#-........................................................................................................................1+

2


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Table of Figures

Figure 1 5 !asi elemen of enrifugal Pump.................................................................................4Figure 2 5 ross seion of Cenrifugal pump...................................................................................%

Figure 3 5 #perimenal arrangemen for pump performane 6araerisi...................................+

Figure 4 5 7aer8flo9 ben6 an: enrifugal pump.........................................................................,Figure % 5 T6e insrumenal panel....................................................................................................,

Figure + 5 ; $ < no6 9eir..............................................................................................................,

Figure , 5 *rap6 of #ffiien= >?@ A &ea: pump>m@A !raBe &orsepo9er>B7@ s $olume Flo9Rae>m3s@ for Tes 1........................................................................................................................

Figure 5 *rap6 of #ffiien= >?@ A &ea: pump>m@A !raBe &orsepo9er>B7@ s $olume Flo9

Rae>m3s@ for Tes 2......................................................................................................................10Figure 5 *rap6 of #ffiien= >?@ A &ea: pump>m@A !raBe &orsepo9er>B7@ s $olume Flo9

Rae>m3s@ for Tes 3......................................................................................................................11

Table 1 5 Daa for es 1....................................................................................................................

Table 2 5 Daa For es 2.................................................................................................................10

Table 3 5 Daa for es 3..................................................................................................................11

1.0 INTRODUCTION

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1.1 Pump

' pump is a :eie use: o moe gasesA liEui:s or slurries. ' pump moes liEui:s or gases from lo9er

pressure o 6ig6er pressureA an: oeromes 6is :ifferene in pressure b= a::ing energ= o 6e s=sem >su6 as a

9aer s=sem@. ' gas pump is generall= alle: a ompressorA eep in er= lo9 pressure8rise appliaionsA su6 as

in 6eaingA enilaingA an: air8on:iioningA 96ere 6e operaie eEuipmen onsiss of fans or blo9ers.

1.2 Centrifugal pump

' enrifugal pump is a ro :=nami pump 6a uses a roaing impeller o inrease 6e

eloi= of a flui:. Cenrifugal pumps are ommonl= use: o moe liEui:s 6roug6 a piping

s=sem. T6e flui: eners 6e pump impeller along or near o 6e roaing ais an: is aelerae:b= 6e impellerA flo9ing ra:iall= ou9ar: ino a :iffuser or olue 6amberA from 96ere i eis

ino 6e :o9nsream piping s=sem. Cenrifugal pumps are use: for large :is6arge 6roug6

smaller 6ea:s.

Fig"re # $ Basic ele%ent of centrif"gal P"%p

2.0 OB!CTI"!

4


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To obain performane 6araerisis for a ariable spee: enrifugal pump operaing a 3

:ifferen impeller spee:s. Performane 6araerisis of pump5

8 Pressure >6ea:@ ump

8 Po9er reEuiremen8 Flo9 rae influene

8 Pump spee: influene

#.0 T$!OR!TIC%& B%C'(ROUND

The centrifug! "u#" h$ t%& #in c"&nent$: n i#"e!!er ttche' t&

r&tting $hft n' $tti&nr( c$ing &r h&u$ing enc!&$ing the i#"e!!er) The*$ic e!e#ent$ &f centrifug! "u#" re $h&%n *e!&%)

Fig"re & $ cross section of Centrif"gal p"%p

Energ( i$ ''e' t& the +ui' *( the r&tting *!'e$ n' *&th "re$$uren' *$&!ute ,e!&cit( re incre$e' $ the +ui' +&%$ fr the e(e t&"eri"her( &f int& the *!'e$) The -inetic energ( i$ c&n,erte' int& furtherincre$e in "re$$ure $ the +ui' +&%$ fr the i#"e!!er int& the c$ingenc!&$ing the i#"e!!er)

Due t& the gener! c"!e.it( &f +&% thr&ugh centrifug! "u#"/ thectu! "erf&r#nce &f the "u#" cnn&t *e "re'icte' &n c"!ete!(the&retic! *$i$) Actu! "u#" "erf&r#nce i$ 'eter#ine' e."eri#ent!!(thr&ugh te$t$ &n the "u#" n' the re$u!t$ re "re$ente' $ "u#""erf&r#nce$ cur,e$)

C&n$i'er the e."eri#ent! rrnge#ent f&r 'eter#ining the he' ri$egine' *( the +ui' +&%ing thr&ugh "u#"/ $ $h&%n in 0gure 1 *e!&%)

%


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Fig"re ' $ Eperi%ental arrange%ent for p"%p perfor%ance characteristic

The "u#" he' ri$e cn *e c!cu!te' *( u$ing the energ( e2uti&n

h3 "36 "78 9 g ;


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).0 PROC!DUR!

).1 %PP%R%TU*

Fig"re * $ +ater,flo- bench an. centrif"gal p"%p

Fig"re / $ 0he instr"%ental panelFig"re 1 $ 2 3 4 notch -eir

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).2 !+P!RI,!NT%& PROC!DUR!

).2.1 Preliminaries

i -u:ens 6a: been a:eEuael= superise:.ii T6e :is6arge an: suion ales 9as urne: o full= open an: 6e moor spee:

onrol 9as se o Gero.

iii T6e elerial suppl= an: moor :rie 9ere s9i6e: on. T6e moor onrol Bnob

slo9l= a:use: o aroun: 6alf 9a= posiion. T6e s=sem 9as ensure: free from

leaBing. T6e moor spee: 9as re:ue: baB o Gero.

).2.2 %-tual !periment

i T6e suion ale 9as opene: an: 6e :is6arge ale 9as lose:. T6e maimum

pump spee:N1b= a:using spee: onrol o 100?.ii Dis6arge ale 9as full= opene: an: 6e 9aer 9as allo9e: o irulae. T6e olume

of flo9 9as in:iae: an: 6e suiable inremen in flo9 9as :ei:e:.

iii T6e :is6arge ale 9as lose:. T6e rea:ing 9as aBen 96en all measuremens 9ere

sea:=.

i T6e :is6arge ale 9as slig6l= opene:A o gie 6e firs inremen in olume flo9.

-ep i@ 9as repeae:. T6e final measuremens orrespon:ing o 6e ale being full=

opene:.

i T6e enire eperimen a pump spee: 9as repeae: orrespon: o spee: onrol

posiion of ,%? an: %0?.

/.0 D%T% %N%&*I*

/.1 D%T% T%BU&%TION %ND R!*U&T %N%&*I*

/.1.1 T!*T 1


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PUP -P##DA N H 143 rpm

H 1%0.+ ra:s

0able # $ 5ata for test #

INPUT OUTPUT #ffiien=

9aer

6eig6Amm

TorEueA T

>Nm@

-6af Po9er$olume Flo9

Rae

Inle PressureA

p1

Dis6arge

PressureA

p2

9aer6ea:A6

>m@>100?@

oupupo9erA

7a

B7

&p

>100?@

lmi

nm3s

62

oNm2 psi Nm2

0 0.+0.0

0.12 00.000

00.2 1+1.33

.%

%+0%.4+ %.,, 0.00 0.00

%0 10.1%

0.20 %00.000

0.1 0.+, %%1%.0 %.%2 4%.1% 2.+

+1 1.1

0.1

, 0.22 0

0.001

3 0 0.00 , 42+3.32 4.2 +4.3% 3.2

+% 1.20.1

0.24 00.001

%80.1 80.+, + 413+.%+ 4.32 +3.%2 3%.13

+ 1.30.20

0.2+ 10%0.001

80.2 81+1.33 % 344,3.0 3.,1 +3.,+ 32.%%

,3 1.40.2

10.2 12%

0.002

180.4 8322.++ 4 2,%,.04 3.21 +%.+3 31.11

,% 1.40.2

10.2 130

0.002

280.% 8403.33 3 20+4.2 2.+1 %%.44 2+.2

,, 1.40.2

10.2 140

0.002

380., 8++4.++ 2 13,.%2 2.11 4.1 22.4

T!*T 1

ECcienc(

He' "u#"

Br-e H&r$e"&%er

,&!u#e +&%rte/5#19$8

ECcienc(5D8 / He' "u#"5#8/ Br-e H&r$e"& %er5-A8

Fig"re 6 $ 7raph of Efficiency (8) 9 Hea. p"%p(%)9 Bra:e Horsepo-er(:+) ;s 3ol"%e Flo- Rate(% '


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/.1.2 T!*T 2

PUP -P##DA N H 21, rpm

H 22.0 ra:s

0able & $ 5ata For test &

INPUT OUTPUT #ffiien

=

9aer

6eig6Amm

TorEueA T

>Nm@

-6af Po9er $olume Flo9

Rae

Inle PressureA

p1

Dis6arge

PressureA

p2

9aer

6ea:A6>m@>100?@

oupu

po9erA7a

B7 &p>100?@

lmin m

3

s 62o Nm

2

psi Nm

2

7)7)35 )14

) )7 G)

3

71G5)3 71) ) )

3)7)4G )4 5

)7 )

7G

73475)G 73)5

7)5 47)1

1 3)4)55 )1 735

)37 J)3

J77)1

17

7717)7 77)45

311)7 43)1

G 3))5 )G 745

)34 J)

JG4)

74

53)4 7)54

34)G 43)71

G7 3)

)

3 )G1 7

)

3 J7

JG)

5

7

3

G31)7

3 )41

34)

G 4)

G4 3)G)4 )G 75

)3 J7)3

J77)

G7

G4) G)31

315)43 1)G

G 3)) )G 7

)13 J7)4

J713)

17 G5575G)

G )337G)74 13)G

G 1)G )3 3

)11 J7)

J77)

17 471G)5

5)371)4 3G)3

10


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T!*T 2

eCcienc(

He' "u#"

Br-e H&r$e"&%er

=&!u#e +&%rte5#19$8

ECcienc(5D8 / He' "u#"5#8/ Br-e H&r$e"&%er5-A8

Fig"re = $ 7raph of Efficiency (8) 9 Hea. p"%p(%)9 Bra:e Horsepo-er(:+) ;s 3ol"%e Flo- Rate(% 'Nm@

-6af Po9er $olume Flo9

Rae

Inle PressureA

p1

Dis6arge

PressureA

p2

9aer

6ea:A6>m@>100?@

oupu

po9erA7a

B7 &p

>100?@

lmi

n

m3s 62

o

Nm2 psi Nm2

7)G)5 )4

) )7 G)

1

34G377)1 35)3 ) )

5 1)57)G 7)45 71

)33 J)1

J343)

11

3353)G 31)4

4)15 4)3

G1 1)7)3 7)7 7

)3G J)

JGG35)

1

3G43)G 37)G

77) 5)G7

G 4)37)1 7)4 3

)11 J7)1

J734G)

53

7G75G)53 3)3G

1)1 57)7

11


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3 4)47)1 7)G3 375

)1 J7)G

J757)

34

7544)34 7G)

5)3 4G)1

4 4)57)1 7)G 315

)1 J3

J771)

137

744G) 7)

41)7 4)4

4)7)43 7) 345

)47 J3)5

J3457)1

7G

73475)G 75)75

)GG 43)G

4)G7)4G 7) 3

)41 J3)G

J345G)

375

71437)4 71)14

5)75 1G)17

T!*T #

eCcienc(

He' "u#"

Br-e H&r$e"&%er

=&!u#e +&% rte5# 19$8

ECcienc(5D8 / He' "u#"5#8/ Br-e H& r$e"&%er5-A8

Fig"re > $ 7raph of Efficiency (8) 9 Hea. p"%p(%)9 Bra:e Horsepo-er(:+) ;s 3ol"%e Flo- Rate(% ' rp%

=2 N

60

?2 (1439)

60

? #/@1> ra.


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Wshaft=T

?1150.69

150. + ra:s

TaBing 9aer 6eig6 H %0 mm

7e go 6e alue of olume flo9 raeA Q H %0 (min from 6e 90 $## NOTC&

C'(I!R'TION

CUR$#

Q H%0 (min H 8.33104

m3/s

7aer 6ea:A h

p

hp=p

2p

1

g

(55158.056980.665)

(10009.81)

5.5227m

Oupu po9erA P

f

Pf=g Qhp

(1000 ) (9.81 ) (8.33104)(5.5227)

45.13Watt

#ffiien= A

=

pf

Wshaft 100

(45.13)150.69

100

29.9

13


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.0DI*CU**IO

N14


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.0 CONC&U*ION

's a onlusionA 9e an sa= 6e resul for Tes 35 Pump -pee: H 24% rpm a 100? an: Tes 25

Pump -pee: H 21, rpm a ,%? are beer 6an Tes 15 Pump -pee: H 143 rpm a %0?. Ismean 6a 6e bes performane of 6e pumps is 96en i operaes a spee: be9een 143 rpm

unil 21, rpm an: 6e effiien= be9een %0? an: ,%?. From 6e eperimenA 9e an onlu:e

6a 6e bes performane of 6is enrifugal pump o operae is a spee: N 1H 24% rpm an: flo9

raeA be9een 6e range of 0 o 3 >mJs@ 108J.

!= :oing 6is eperimen alsoA all 6e 6araerisis of 6is pump 96i6 is effiien=A

breaB 6orsepo9er an: 6e 6ea: an be :efine: b= using a :ifferen spee: of pumpA an: 6us 6e

obeie of 6is eperimen is a6iee: alrea:=. T6erefore i an be aepable in or:er o :efine

an= enrifugal pump 6araerisis.

I also an be sai: 6a 6e main obeies of 6is eperimen 6ae been a6iee:

suessfull=. 7e an also :eermine all 6e parameers reEuire:. &o9eerA i is o be noe: 6aA

some of 6e alue of rea:ings obaine: ma= be inaurae :ue o erain errors 6a ourre:

:uring 6e eperimen su6 as paralla error an: 6uman error. e i sill lea:s an: pro:ue: 6e

epee: resuls aor:ingl= an: as reEuire:.

's a onlusionA 96a I ge 6ere is 6a I Bno9 96a a enrifugal pump is an: 6o9 i

funions. I also ge Bno9le:ge on 6e performane 6araerisis 96i6 are er= useful for me

as a fuure me6anial engineer in or:er for me o sele an appropriae pump for seeral

1%


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operaionsA 96i6 :epen:s largel= on 6e braBe 6orsepo9erA 6e effiien=A an: also 6e pump

6ea: aries 9i6 6e apai= or 6e flo9rae. 'll 6ese nee: o be onsi:ere: in seleing an i:eal

pump.

3.0 R!F!R!NC!*

1. Frank M. WhiteA Flui: e6anisA %6#:iionA *ra9 &illA Ne9 orBA U-'A 2003.

2. Bruce R. Munson, Donald F. Young, Theodore H. OkiishiA Fun:emenals of Flui:

e6anisA %6#:iionA "o6n 7ile= K -onsA 'siaA200+.

3. John F. Douglas, Janus M. !asiorek, John ". #$a%%ieldA Flui: e6anisA 46#:iionA

Pearson Prenie &allA -olan:A 2001.

1+

performance of pumps 2015

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