流体机械Issue(3)：56-59,63,5.DOI:10.3969/j.issn.1005.2012.03.013
地源热泵U型管换热器夏季工况试验分析
Test and Analysis for U-tube Heat Exchangers of Ground-source Heat Pump in Summer
摘要
Abstract
The design of the ground heat exchanges is the key of the GSHP system. Borehole depth,flow velocity,soil initial temperature, operating mode , etc. Are the main factors that affect the performance of ground heat exchanges. It was tested the summer operating mode of the ground source heat pump system with different deep buried U-tube ground heat exchangers (60m, 90m) built up in Shanghai district. It was presented the soil initial temperature distribution and the mean heat transfer capacity per unit borehole depth under the different operation modes and different flow velocity. The coefficient of performance of heat pump unit under different flow velocity is also presented. Results show that the increase in flow velocity is not simply raise the heat transfer capacity per unit borehole depth , there is a reasonable range for flow velocity within the U-tube.关键词
地源热泵/换热量/流速/性能系数Key words
ground source heat pump/heat transfer capacity/ flow velocity/coefficient of performance分类
化学化工引用本文复制引用
蔡颖玲,张华,朱朔祎,林志坚,顾佳伟,徐凯,喇楠棋..地源热泵U型管换热器夏季工况试验分析[J].流体机械,2012,(3):56-59,63,5.基金项目
上海市教委科研创新项目(09YZ372) （09YZ372）
