地热换热器传热特性主成分分析

地热换热器传热特性主成分分析

摘要：地源热泵获得了广泛的应用，但其传热特性有待进一步研究。本文考虑高密度聚乙烯管的导热系数、土壤的热物性参数、地下水渗流等的变化对地热换热器传热性能的影响，对单组地埋管换热器的换热特性进行了数值模拟研究，并借助多元统计分析软件（R软件）对影响地热换热器的传热特性的因素进行了主成分分析。结果表明地热换热器的传热性能主要是由土壤导热系数控制,其次受控于地下水渗流和土壤的密度以及比热容,而地埋管的物性参数也是影响水质的因素。

关键词地源热泵；传热特性；主成因分析；数值模拟

Abstract: the ground source heat pump get widely, but heat transfer characteristics of the pending further study. In this paper, we consider high density polyethylene pipe of the coefficient of thermal conductivity, soil of the thermal physical parameters, groundwater seepage of the change of the geothermal heat exchanger performance of the impact on the ground heat exchanger ca heat transfer characteristics of the numerical simulation research, using multivariate statistical analysis software (R software) on the heat transfer characteristics of geothermal heat exchanger influence factors of principal component analysis. The results show that the heat transfer performance of the heat of the heat exchanger is mainly from the soil coefficient of thermal conductivity control, second controlled by groundwater seepage and soil density, and specific heat capacity, and buried tube of physical parameters influence the quality of the water is also factors.

Key words ground source heat pump; Heat transfer characteristics; The cause analysis; Numerical simulation

0 引言

地源热泵技术是一种环保节能先进的空调技术，业已经成为我国暖通空调行业的热点。设置地热换热器是地埋管地源热泵空调系统区别于传统空调系统的最

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