Dynamic thermal modelling of horizontal ground-source heat pumps
Dynamic thermal modelling of horizontal ground-source heat pumps
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DOI：
10.1093/ijlct/ctt012
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发表时间：
2013-06
影响因子：
2.3
通讯作者：
G. Gan
中科院分区：
文献类型：
--
作者：
G. Gan
针对土壤源热泵水平耦合换热器的动态热性能，考虑了气候、负荷和土壤条件的动态变化，编制了相应的数值模拟程序。该程序被用来调查运行和启动时间，安装深度和土壤冻结的热交换器的性能的影响。结果表明，热提取率随操作时间的增加而降低。在秋季较早开始日期运行热泵将导致更高的累积热提取量。此外，安装在较浅深度处的热交换器可以在加热操作的早期阶段提供较大的热提取率。此外，土壤冻结增强了热量提取。牛津大学出版社.
A computer program has been developed for numerical simulation of the dynamic thermal performance of horizontally coupled heat exchangers for ground-source heat pumps, taking account of dynamic variations of climatic, load and soil conditions. The program was used to investigate the effects of operating and start times, installation depth and soil freezing on the heat exchanger performance. It is shown that the rate of heat extraction decreases with increasing operating time. Operating a heat pump with an earlier start date in autumn would give rise to a higher amount of cumulative heat extraction. Also, a heat exchanger installed at a shallower depth can provide a larger heat extraction rate at the early stage of heating operation. In addition, soil freezing enhances heat extraction. Copyright , Oxford University Press.