地源热泵冬夏两季运行性能分析与实验研究  

Analysis and Experimental Study on Heating and Cooling Operation of the Ground Source Heat Pump

作　　者：宋著坤[1] 赵军[1] 李新国[1] 黄涛[1] 

机构地区：[1]天津大学,天津300072

出　　处：《流体机械》2006年第2期55-59,共5页Fluid Machinery

摘　　要：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：地源热泵 运行性能 输气系数 总效率 

分 类 号：TU832.1[建筑科学—供热、供燃气、通风及空调工程]