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Thread: chilled water pump design
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14-09-2005, 06:05 AM #1
chilled water pump design
compliments
any body know the basic equation for desiding the flow rate of the chilled water pump with respect of the size of evaporator in tons
thanks
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14-09-2005, 11:28 AM #2
Re: chilled water pump design
Dear Afif,,
afif the flow rate of a chilled water system is related to the tonnage, first you have to transform the tonnage to KW, i.e. 1 Ton = 3.41 KW, then you can apply this formula:
Q= m x Cp x DT
Q: Capaciy in KW
m: Flow rate (Kg/sec)
Cp: Specific Heat (For Water 4.18 KW/Kg.K)
Dt: Delta T (entering - leaving chiller water temp)
then u'll get your flow rate man ..
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14-09-2005, 06:59 PM #3
Re: chilled water pump design
It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
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15-09-2005, 01:57 PM #4
Re: chilled water pump design
Originally Posted by Mahmoud
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15-09-2005, 08:11 PM #5
Re: chilled water pump design
Specific heat of water = 4.19kj/kg.K
kj/s = kw
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16-09-2005, 12:06 AM #6
Re: chilled water pump design
Hi guys
Afeef take care man , if you are using glycol or other antifreezing agent the specific heat of the blend changes .
Best regardsEngineering, sciences, math, physics and my brain will generate "not responding " soon
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