INVESTIGATION OF PERFORMANCE OF SOLAR-ASSISTED HEAT PUMP SYSTEMS: MU？LA EXAMPLE

In this study, the combination of solar thermal systems with heat pump has been investigated numerically. The potential utility of the collectors is found by comparing heat pump systems with combined systems. All simulations for the Mu？la province were made using the POLYSUN program. The simulated systems are designed to meet the demand for hot water and residential heating of single-dwelling houses. The results of this study show that the seasonal performance factor of the system increases as the collector field added to the air source heat pump system increases. However, in the systems where the heat demand is met, the heating effect coefficient of the heat pump (COPHP) decreases. In this system, solar energy is used to meet the need for hot water, while also supporting housing heating. However, it has been determined that the heat pump should be selected at a sufficient capacity because the increase in the number of collectors by selecting the heat pump at the insufficient capacity cannot meet the demand. However, it has been determined that the heat pump should be selected at a sufficient capacity because the increase in the number of collectors by selecting the heat pump at the insufficient capacity cannot meet the demand. In the systems where the heat demand cannot be met, the heating effect coefficient after 2 collectors is found to be constant. Collectors used in excess of 2 collectors are closed when there is no need for them. However, it supports heating in winter