Heat pump or gas furnace, which is best? Get your HVAC facts from the pros & bust the 8 major myths before comparing & choosing heat pumps for the home.
If you have the means to install a home solar system that would produce enough electricity to offset most or all of your heat pump’s energy use, the cost of ownership can be very, very low. Heat pumps often may not save money vs. natural gas heat in cold climates—but there are ...
Experimental research has been carried out on water-to-water heat pump driven by natural gas engine under different operating and speed conditions by advanced testing means.The results show that the Primary Energy Ratio(PER)of the system is about 1.13～1.79 under the experimental conditions and the...
While HFCs and HCFCs have been widely used in the past, there is a trend, especially in Europe, toward natural refrigerants because of (potential) environmental regulation, such as the F-gas quota limiting the use of fluorinated refrigerants with high global warming potentials (GWPs)....
The dynamic simulation of hot-gas defrost is a challenge and necessary to the simulation of a heat pump. A defrost model that bases itself on the fundamental conservation equations and experimental results is presented in this paper. The distributed model is used here for the details of evaporato...
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Performance of a gas engine-driven heat pump system with R410A for cooling and domestic hot water applications 2023, International Journal of Refrigeration Citation Excerpt : When the engine is at high speed, the effect of ηeng is less than COP, and PER tends to decrease. If we did not ...
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