A/C CoP in relation to temperature
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A/C CoP in relation to temperature
Hello,
Im not to experienced with A/c stuff, but i have the basics.
so here's my question- will a heat pump have a higher coefficient of performance if the air being cooled is hotter?
Also, will it have a higher CoP if the air being cooled is more humid?
So, as an extreme example, if one were trying to rapidly cool hot water (radiator not being an option) would a 20kbtu heat pump remove more energy than 20kbtu?
Also, is there any way to make an air conditioning system remove more heat?
Thanks for your knowledge!
Dan
Im not to experienced with A/c stuff, but i have the basics.
so here's my question- will a heat pump have a higher coefficient of performance if the air being cooled is hotter?
Also, will it have a higher CoP if the air being cooled is more humid?
So, as an extreme example, if one were trying to rapidly cool hot water (radiator not being an option) would a 20kbtu heat pump remove more energy than 20kbtu?
Also, is there any way to make an air conditioning system remove more heat?
Thanks for your knowledge!
Dan
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Joined: Nov 2003
Posts: 108
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The hotter the air your trying to cool the harder your heat pump works because at high temps the pressure of the refrigerant is also higher. That being the case it takes more energy from the compressor to push the refrigerant through the system.
It takes more energy to cool humid air then dry air because you have to remove the moisture before you can cool the air.
A 20k btu can only remove 20k btu's unless you remove the load on the compressor. The way you can do that is using water to cool the condenser coil. Using water instead of air to cool the condenser will give your heat pump the ability to remove more heat because water can remove alot more heat than air. There are still a few A/C systems around here that have water cooled condensers.
The pros are you can remove more with less energy. For exampe a 36k btu compresser can remove as much heat as a 60btu air cooled condenser.
The cons is you use a lot of water and there is much more maintenace to keep the system clean.
It takes more energy to cool humid air then dry air because you have to remove the moisture before you can cool the air.
A 20k btu can only remove 20k btu's unless you remove the load on the compressor. The way you can do that is using water to cool the condenser coil. Using water instead of air to cool the condenser will give your heat pump the ability to remove more heat because water can remove alot more heat than air. There are still a few A/C systems around here that have water cooled condensers.
The pros are you can remove more with less energy. For exampe a 36k btu compresser can remove as much heat as a 60btu air cooled condenser.
The cons is you use a lot of water and there is much more maintenace to keep the system clean.
