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Thread: Condensing temp of refrigerant
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02-10-2005, 08:23 AM #1
Condensing temp of refrigerant
In Air Source Heat Pump, where the condensing medium is water, to get hot water at 60 deg. C., what should be the condensing temp of refrigerant?
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02-10-2005, 05:53 PM #2
Re: Condensing temp of refrigerant
Hello Anup. If you want to get hot water at 60 deg. C the condensing temperature of refrigerant must be bigger then the temperature of water. 64-66 deg. C should do it.
Best wishes.
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02-10-2005, 10:18 PM #3
Re: Condensing temp of refrigerant
Hi Anup , in any heat exchanger , to heat a substance at least you need the tempreture of the heating substance to be the desired tempreture of the heated substance + .
Like if you want to heat water from 10*C to 20*C , at least you need a heat source of 21*C .
The capacity should also be calculated , I mean you can't heat 10 Kg of water from 10 to 20*C with 5Kg of water at 21*C .
The same principle applies to your questionEngineering, sciences, math, physics and my brain will generate "not responding " soon
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04-10-2005, 06:51 AM #4
Re: Condensing temp of refrigerant
Hi anup
it will depend on your heat exchanger design. Usullay 3~5K is the lower limit. Too small temp diff will cause bigger size heat exchanger and increase cost.
rgds
LC
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04-10-2005, 03:14 PM #5
Re: Condensing temp of refrigerant
Hi, How to calculate over all heat transfer co-efficient for a eveporator and how does it corelated with tube thermal conductivity ?
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