多源单双压缩机热泵系统性能的对比研究  

Comparative research on performance of compound energy heat pump system with single and double compressor

作　　者：臧运艳 刘俊红[1] 刘凤珍[1] 

机构地区：[1]山东建筑大学 可再生能源建筑利用技术教育部重点实验室,山东济南250101

出　　处：《山东建筑大学学报》2013年第6期532-537,550,共7页Journal of Shandong Jianzhu University

摘　　要：可再生能源的有效利用是现今国际社会发展中最核心的竞争,而复合源热泵系统即太阳能、地能、空气能三种可再生能源的最好结合。文章通过单压缩机复合源热泵系统和双压缩机复合源热泵系统的原理图和压焓图的对比,进而通过改变空气侧和水侧制冷剂质量流量之比,对比分析这两个热泵系统夏季的制冷循环。结果表明:采用双压缩机的复合源热泵系统与采用单压缩机的复合源热泵系统相比,冷凝器热负荷方面最高可降低3.1%,压缩机理论耗功率方面最高可降低18.2%,在理论制冷系数方面最高可升高22.18%,其系统耗功和系统能效较低,循环的经济性更好,系统更加节能。The use of renewable energy is the core of competition in international community today,and the compound source heat pump system is the best combination of three kinds of renewable energy of solar,air and ground source.The paper compares the schematic and pressure enthalpy diagram of the composite heat pump system with single compressor and dual-source compressor,and by changing the ratio of air-side and water-side refrigerant mass flow rate,gives the comparative analysis of the refrigeration cycle of these two summer heat pump system.The results show：the condenser heat load of the compound source heat pump system with double compressor can be reduced by 3.1％,the highest compressor theory power consumption can be reduced by 18.2％,and the highest theoretical refrigeration coefficient can be increased by 22.18％.The compound source heat pump system with double compressor has the relative lower power consumption and system efficiency,better economic cycle,and more energy efficiency.

关 键 词：热泵 压缩机 压焓图 R134A 

分 类 号：TK123[动力工程及工程热物理—工程热物理] TB652[动力工程及工程热物理—热能工程]