在热泵领域,有许多影响装置性能和效率的参数.本研究采用实验方法研究重要参数对热泵性能的影响.在不同工况下,利用实验室热泵装置研究制冷剂类型和充注量、压缩机油黏度、压缩机冷却风扇、二次流体温度和流量等参数的影响.选择不同的制冷剂作为热泵的循环流体.本文在研究不同参数对COP的影响之外,还对其经济性进行了分析.结果表明,制冷剂充注量是影响COP的主要参数之一,添加合适的制冷剂可使系统性能提高11％以上.此外,通过选择低黏度压缩机油,系统性能提高18％.当采用冷却风扇冷却压缩机元件时,系统性能提高超过6％.“,”In the field of heat pumps, there are a number of parameters that affect the performance and efficiency of the apparatus, which have been the subject of studies by individual researchers in the literature. This study describes an experimental method in order to investigate the effects of some significant parameters on heat pump performance. In this regard, a laboratory heat pump setup has been utilized to operate in different working conditions for achieving an appropriate estimation to find out effects of mentioned parameters such as refrigerant type and charge amount, compressor oil viscosity, compressor cooling fan, secondary fluids temperature and flow rate. Different refrigerants have been selected and used as circulating fluid in the installed heat pump. Although this work has been devoted to a detailed attempt to recognize the effects of various parameters on the coefficient of performance (COP) value, an appropriate method has been carried out to survey the obtained results by using economic analysis. It was revealed that one of the main parameters is refrigerant charge amount which has a notable effect on COP. The temperature of the heat source was also tested and the performance of the system increased by more than 11％by employing mentioned modifications and various operating conditions. In addition, by selecting a low viscosity compressor oil, the system performance increased by 18％. This improvement is more than 6％for the case that cooling fan is installed to cool the compressor element.