【摘要】 对土壤源热泵系统埋地换热器的影响因素进行研究,分析三种获得土壤热物性参数的方法,得到利用现场测试法较精确。搭建实验台对埋地换热器传热量进行测试,发现室内负荷和埋管循环水流量对埋地管与土壤的换热量影响较大,利用圆柱源传热模型进行模拟验证,模拟结果与实验结果吻合较好。更多还原

【Abstract】 The effect factors with underground heat exchanger in soil source heat pump system have been studied,three methods to estimate soil thermal properties have been analysed and find that the value tested by in situ method is most accurate.And experimental installation has been built to test the heat exchange amount of underground heat exchanger.It is found that indoor load and the circulating flow mass of heat exchanger tube make significant effect on the heat exchange amout between underground heat exchanger and soil.Utilizing the cylindrical heat source model to simulate the heat exchange process,the simulated results tally with the experimental data.更多还原