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...
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 : Liu et al. (2016) presented a GHP system with evaporative condenser to study the cooling performance, finding that the ener...
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 ...
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 ...
Li, X. Yuan, Comparison between hot-gas bypass defrosting and reverse-cycle defrosting methods on an air-to-water heat pump, Applied Energy 86 (2009), 1697-1703.Huang D, Li Q, Yuan X, Comparison between hot-gas bypass defrosting and reverse-cycle defrosting methods on an air-to-water ...
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the cost of installing energy-efficient heating systems. However, the replacementBoiler Upgrade Schemewill offer homeowners up to £6,000 to install a ground source heat pump in place of existing gas or oil heating and may be worth applying for if you're after a ground source heat pump....
In order to reduce the energy consumption during the operation of the swimming pool, this study proposes a hybrid heating system of air source heat pump water heater/chillers (ASHP) and exhaust gas boiler applicable to the cruise ship swimming pool by regarding the parameters of a Vista-class...
A CO2 heat pump water heater (HPWH) can provide hot water with a relatively high COP and consume significantly less energy than all electric or gas water heaters. This study reviews and analyses the existing CO2 HPWHs both in industrial and residential sectors, where the low-temperature and ...
GSHP Ground Source Heat Pump GWHP Groundwater Heat Pump SI Sensitivity Index Latin Letters b saturated thickness of the aquifer (m) 𝐷𝑥Dx, 𝐷𝑦Dy, 𝐷𝑧Dz thermal dispersion coefficient, respectively in the 𝑥x, 𝑦y, 𝑧z direction (m2/s) d thickness of the vadose zone—wa...