The Efficiency of the Heat Pump in the Heating System Using Heat from Exhaust Gases after the Condensing Boiler
DOI:
https://doi.org/10.20535/1810-0546.2014.5.35328Keywords:
Heat pump, Hot water system, Condensing boiler, Exhaust gases, Optimal temperature, Maximum specific useful effectAbstract
The thermodynamic efficiency of heat pump hot water supply schemes using heat from exhaust gases after the condensing boiler was determined. It was established, that there is the optimum degree of cooling of the flue gases in the evaporator heat pump, which corresponds to the maximum specific useful effect received from the exhaust gases heat utilization by HP based on the cost to the heat pump compressor drive. The dependence of the optimum degree of cooling of the flue gases in the evaporator of heat pump has been calculated, water temperature at the inlet to the condenser of heat pump is in the range 10–35 °C and the temperature of water in the hot water supply is in the range 45–55°. The optimum degree of cooling of the flue gases in the evaporator heat pump allows you to get the maximum specific useful effect received from the exhaust gases heat utilization by HP based on the cost of the heat pump compressor drive.References
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