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【英文篇名】 Experimental research of mechanically driven water-to-water heat pump systems 【作者中文名】 刘万福; 马一太; 杨昭; 【作者英文名】 By Liu Wanfu; Ma Yitai and Yang ZhaoTianjin University; China; 【作者单位】 天津大学; 【文献出处】 暖通空调, Hv 天然气; 能效比; 性能系数; 混合换热器; 能源消耗准则; 【英文关键词】 mechanically driven heat pump; natural gas; energy efficiency ratio; coefficient of performance; mixed heat exchanger; energy consumption relationship; 【摘要】 研制了机械驱动水—水热泵实验装置。实验研究揭示 :转速变化会导致系统性能变化 ;系统的EER特性在转速变化范围内有极值 ,所以系统的额定工况可选定在该转速下 ;系统的制热量变化幅度大 ,能在额定工况上下调节 ;采用混合换热器回收发动机余热和尾气废热 ,能使局部流量范围的出水温度达到 95℃。对燃用天然气的内燃机驱动水—水热泵系统与电动热泵系统的能源消耗作经济比较 ,得出了可用于判断其应用前景的能源消耗准则。 【英文摘要】 Developed a water-to-water heat pump system driven by an internal combustion engine. Used a mix heat exchanger to recover heat from the engine. Based on experimental results, the studied system characteristics has a maximum value of EER in the range of rotational speed of compressor and water temperature of the heat pump system at a certain flow rate can reach 95 ℃. Compares the electric heat pump with the gas driven heat pump and obtains an energy consumption relationship which can be used for evaluating t...