Ground source heat pump design and performance analysis; Kütahya case study

The use fossil fuels, which is the biggest source of global warming, which makes the world feel its consequences more and more each day, is being tried to be reduced by developing technology. In this sense, the use of heat pumps is an important alternative instead of fossil fuels used for heating needs, especially in houses. In this study, the annual total heating need of a single-storey house in Kütahya with TS 825 standards was found and the heating of the house with a ground source heat pump (TKIP) was theoretically examined. By using the CoolPack program, the performance analysis of the heat pump was made when 10 different refrigerants at different condenser and evaporator temperatures are used separately in TKIP. In this sense, the COP ( Efficiency coefficient) values of all refrigerants at different condenser and evaporator temperatures, as well as the evaporator capacity, compressor power, heat pump performance coefficient and pipe lengths were calculated and a cost calculation was made according to the results obtained. The resulting data were compared for all refrigerants separately. According to the result obtained, the highest COP value is R600, the highest evaporator capacity R152a, the lowest evaporator R404A, the highest compressor power R404A, the lowest compressor power R600, the highest heat pump coefficient of performance R600, the longest pipe length R600, the lowest pipe longitudinal R404A refrigerant has been observed. In the cost analysis made on the equipment in line with these calculations, it has been seen that the lowest cost occurs when R404A refrigerant is used in TKIP.