摘要
本文基于经典的线源理论和圆柱源理论,求解了土壤源热泵地下换热器的各项热阻。结合热阻概念,建立热平衡方程求解了单位深度换热量。分析了系统运行时间、管内水流速、回填材料导热系数、冬夏季进口水温和岩土类型对热阻和单位深度换热量的影响,为地源热泵系统的优化设计提供参考。
The thermal resistance of ground heat exchanger is calculated according to linear source theory and cylindrical source theory. The heat exchange rate per depth of GHE is calculated by thermal resistance of GHE and thermal balance equation. The effect of running time, flow rate in the pipe, thermal conductivity of grout, inlet temperature and soil type to thermal resistance and heat exchange rate per depth of GHE is analyzed. The results are to provide some guidance for the design of GSHP system
出处
《建筑热能通风空调》
2011年第6期75-79,共5页
Building Energy & Environment
关键词
土壤源热泵
地下换热器
线源理论
圆柱源理论
热阻
单位深度换热量
GSHP, ground heat exchanger, linear source theory, cylindrical source theory, thermal resistance, heatexchange rate per depth
