地源热泵系统竖直U形管换热器设计中的问题探讨
Discussion on vertical Utube heat exchanger design for groundsource heat pump systems
摘要：
介绍了地源热泵系统竖直U形管换热器的设计理论。分析了U形管管径、单孔内U形管数量及热泵机组设计进水温度对换热器换热效果的影响。
关键词：地源热泵系统,竖直U形管换热器,热阻,导热系数
Abstract：
Presents the design theory. Analyses the effect of Utube diameter, tube quantity in each hole, and the design inlet water temperature of a heat pump unit on the heat exchange capability.
Keywords:groundsourceheatpump,verticalUtubeheatexchanger,thermalresistance,thermalconductivity