Özet:

Heat pump systems are highly preferred applications today in terms of using alternative energy sources. It is possible to prevent environmental pollution by using environmentally friendly fluids in these systems. Heat pumps according to heat sources is classified as air, soil and water. This study has been conducted to investigate the feasibility of using water as a heat source in a heat pump and to obtain engineering data for system design. The water source heat pump system has been modeled for performance evaluation purposes using energy and exergy analysis methods for summer and winter conditions in the case of using R-410A refrigerant. Energy and exergy analyzes have been carried out at different condenser and evaporator temperatures for the summer and winter conditions of the water source heat pump system, which consists of three main systems, the heat pump circuit, the underwater heat exchanger circuit and the fan coil circuit. The inlet and outlet temperatures of the water entering the underwater heat exchanger are 14.1 and 10 C for winter condition, 17 and 27 º C for summer condition. The water circulating in the fan coil circuit operates in the temperature range of 7/12 C in the case of 50/40 º C cooling in the case of heating. As the condenser temperature increases in winter, the COP value decreases, while the total exergy destruction of the system increases. In summer, it is seen that the COP value of the system decreases as the evaporator temperature decreases. In addition, as the evaporator temperature decreases, the total exergy destruction amount of the system increases.

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