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METHODOLOGY

Figure (a) : The apparatus

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• For Single Pump

! The main s"it#h $or the s%stem in

turned on!

&! The 'ale & "ere opened!

! During that time* 'ale and 'ale and 'ale + "ere remained #losed!

+! Pump & is s"it#hed on and then Pump is s"it#hed o,!

-! The olumetri# .o" rate* / is 01ed to

23LPM 4% ad5usting the .o" rate ale!

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2! 6$ter a $e" minutes* the reading o$pressure at P* P&* P and P+

"ere re#orded!

7! The e1periment is repeated $or .o"

rate 73LPM* 83LPM*93LPM* and33LPM!

8! The data is re#orded in a ta4le!

9! The Pump is then S"it#hed O, a$tere1periment $or .o" rate 23LPM*

73LPM* 83LPM* 93LPM* and 33LPM

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Figure(4) : lose photo o$ the ales!

'

'+

'&

'

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• For Series Pump

! 'ale and 'ale "ere opened!

&! The 'ale & and 'ale + "ere #losed!

! The Pump and Pump & "ere no" s"it#hed on!+! The olumetri# .o" rate* / is 01ed at 23LPM 4%

ad5usting the .o" rate ale!

-! 6$ter a $e" minutes* the reading o$ the pressureat P* P&* P and P+ "ere ta;en!

2! The e1periment is repeated $or .o" rate73LPM* 83LPM* 93LPM* and 33LPM!

7! The data is re#orded in a ta4le!8! <oth the pumps "ere #losed a$ter e1periment

$or .o" rate 23LPM* 73LPM* 83LPM* 93LPM and33LPM!

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• For Parallel Pump

! 'ale * 'ale & and 'ale + "ere

opened!&! The 'ale is no" #losed!

! The Pump and Pump & "ere then

s"it#hed on!+! The olumetri# .o" rate* / is 01ed to

23LPM 4% ad5usting the .o" rate ale!

-! 6$ter a $e" minutes* the reading o$pressure at P* P&* P and P+ "ereta;en!

2! The e1periment is repeated $or .o"

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Figure(#) : lose photo o$ the pressure

gauge!

P&

P

P

P+

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O=L>S?O=

•  The three di,erent pumps gies e,e#ton the total head and "aterhorsepo"er!

• For single pump* as the olumetri#.o" rate in#reases* the total headde#reases "hi#h is same as the seriesdou4le pump!

•  The total head o$ series dou4le pumpis higher than the alue o$ total heado$ single pump!

•  This 4e#ause* "hen & pumps are

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• 6s the olumetri# .o" ratein#reases * total head de#reases!

•  The alue o$ "ater horsepo"er ishigher in series dou4le pump thanparallel pump and parallel pump has

the lo"est "ater horsepo"er!