某小区地源热泵地埋管换热器的测试与计算

Testing and calculation of ground heat exchangers in a community

地源热泵系统的关键部分在于地下换热系统,由于地下岩土热物性参数的不同,使得地埋管换热器的换热能力有较大差异,这将直接影响到整个系统的使用效果和工程造价。文章以线热源理论为依据,对某实际工程项目进行岩土热响应测试,并计算相关的热物性参数,同时提出了一种工程简化算法,该算法综合考虑了岩土热物性测试结果与建筑物的负荷特点,其计算结果可以作为工程设计的依据。

The ground heat exchange system is an important part of ground source heat pump.Because of difference of ground thermal properties,making ground heat exchanger heat transfer capabilities are quite different,which will directly affect the effectiveness and cost of ground source heat pump system.According to line source model theory the authors have done a ground thermal response test in the engineering project and calculated ground thermal parameters.And proposed an engineering simplification algorithm,which took into account the ground thermal properties and load characteristic of building,the calculation results can be used as the basis for engineering design.