宋著坤,赵军,李新国,黄涛
SONG Zhu-kun,ZHAO Jun,LI Xin-guo,HUANG Tao ( Tianjin University

• 1:天津大学
• 2:天津大学
• 3:天津大学
• 4:天津大学 天津300072

摘要(Abstract)：

结合天津某小区一地源热泵工程,在分析单螺杆压缩机的输气系数及总效率对压缩机性能影响的基础上对其设计工况进行求解,发现机组运行性能夏季比冬季好;分析了冬、夏季典型运行日机组工作温度的变化情况及其对机组性能的影响以及冬、夏季性能比较,验证了理论计算的正确性,同时发现冬、夏两季土壤的吸、排热负荷差值比设计值大。
It was found that the heat pump unit operated better in summer than in winter according to the operating conditions designed of a Ground Source Heat Pump project in Tianjin after the analysis of the influences on the single screw compressor by the volumetric efficiency and isentropic coefficient.The circumstances of the variation of the work temperatures and its influences were analyzed in the typical operating days both in winter and summer,which validated the theoretical computation.Then it was found that the practical difference between absorption and rejection heat was much greater than design.

关键词(KeyWords)： 地源热泵;运行性能;输气系数;总效率
ground source heat pump;operating characteristics;volumetric efficiency gross coefficient

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 宋著坤,赵军,李新国,黄涛
SONG Zhu-kun,ZHAO Jun,LI Xin-guo,HUANG Tao ( Tianjin University

参考文献(References)：

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