Utilization of solar energy and waste heat

A heat pump and thermal energy storage unit were combined in an experimenta l setup to utilize solar energy and waste heat efficiently at low temperatu res (10-50 degrees C). The calcium chloride hexahydrate was used as the the rmal energy storage medium and water was used as the working liquid between storage rank and collectors. The performance of the experimental setup at different heat source temperatures for space heating in a laboratory buildi ng in Trabzon, Turkey, were investigated both experimentally and theoretica lly The fraction of the space heating load that was supplied by the solar-a ssisted system was determined as a function of collector area and storage v olume from a developed numerical method and results were compared with expe rimental results.