摘要
地源热泵地埋管换热系统设计的合理性不仅影响系统后期运行效果,也决定了地源热泵系统能否达到预定的节能要求。单米换热量法和数值模拟法是目前工程上常用的两种地源热泵工程设计方法,但当前对于两种设计方法的差异性及适用性则少有研究。阐述了两种设计方法的原理,并以北京地区五类民用建筑冷热负荷及六类地层土壤热物性参数为输入条件,分别采用上述两种方法对地埋管换热系统进行设计计算,对比设计结果,详细分析了两种方法的差异性。
The rationality of the design of ground source heat pump not only affects the system’ s operation results, but also determines whether the system can achieve the predetermined energy saving requirements. The unit heat transfer method and numerical simulation method are two commonly used ground source heat pump engineering design methods in engineering. However, there are few studies on the differences and applicability of the two design methods. This article elaborates the principles of the two design methods, and takes the input of the cooling and heating loads of five types of civil buildings in Beijing and the parameters of six layers of soil thermal properties, and uses the above two methods to design the system. Detailed conclusions of the differences between the two methods are analyzed according to the design results.
作者
魏俊辉
褚赛
刘启明
申雪云
鲍超
WEI Jun-hui;CHU Sai;LIU Qi-ming;SHEN Xue-yun;BAO Chao(Beijing Geotechnical Institute,Beijing 100038,China)
出处
《建筑节能》
CAS
2019年第3期55-59,共5页
BUILDING ENERGY EFFICIENCY
关键词
地源热泵
单米换热量
数值模拟
偏差值
ground source heat pump
unit heat transfer
numerical simulation
deviations
