摘要
合理地分析地热换热器中的传热过程是保证地源热泵空调系统经济可靠地运行和降低其初投资的要求,而传热模型又是传热过程的关键所在,因而确定钻孔内传热模型对于设计地源热泵空调系统中的地热换热器具有重要的意义。在此基础上分析了地源热泵地下换热器的3种传热模型,导出了其解析式,并对比分析了各种模型的特点,为地下换热器的设计和分析提供了更精确地方法。
Ground source heat pump system features its ground heat exchanger, which contributes to a substantial portion of its initial cost. The heat transfer model is very important, so it is crucial to determine the heat transfer model with higher accuracy for cost-efficient applications of GSHPs. Three transfer models of the heat exchangers of groundsource heat pump were analyzed, and analytical solutions were compared. More accurate method was put forward to design the heat exchangers.
出处
《建筑节能》
CAS
2008年第5期16-18,共3页
BUILDING ENERGY EFFICIENCY
关键词
地热热泵系统
竖直U型管换热器
传热模型
热阻
groundsource heat pump systems
vertical U-tube heat exchanger
heat transfer model
thermal resistance
