地源热泵设计中两个重要参数的实验研究
Experimental study on two important parameters in design of ground-source heat pump systems
摘要：
在地源热泵系统设计时，地埋管换热器进口水温和管内流速对换热量有着非常重要的影响。热响应实验以单口地埋井为实验对象，通过改变换热器内介质的流速及进口温度，得到了单位管长换热量，为地埋井深度的设计提供参考。
关键词：地源热泵 地埋管换热器 热响应实验 进口水温 流速
Abstract：
In the design of ground-source heat pump (GSHP), the inlet water temperature and velocity of the media in the underground U-tube heat exchanger are very important for heat exchange rate. In the heat response experiment of a single well, with the variation of inlet temperature and velocity of the media, obtains the heat exchange rate per unit U-tube length, providing references for design of U-tube heat exchangers.
Keywords:ground-source heat pump, ground heat exchanger, heat response experiment, inlet water temperature, velocity