文档介绍：不同地质气候条件对地埋管换热器的影响及其适宜性评价
唐凯张旭周翔张恩泽董丽娟张锐
(同济大学暖通空调及燃气研究所,上海 201804)
摘要基于线源模型和能量守恒原则建立了单 U 形地埋管换热器的简易计算热阻模型,并在上海地区验证
了模型的准确性。利用该模型,分析了不同地质及气候条件对单 U 形地埋管换热器换热性能的影响,根据
地质及气候条件,建立了基于层次分析法的地埋管换热器的适宜性评价模型,并以该模型对几个地区地埋
管地源热泵的适宜性进行了评价。
关键词地埋管换热器;地质及气候条件;适宜性评价;层次分析法
INFLUENCE OF DIFFERENT KINDS GEOLOGICAL AND CLIMATE CONDITIONS ON
GROUND HEAT EXCHANGER AND ITS SUITABILITY EVALUATION
Tang Kai Zhang Xu Zhou Xiang Zhang Enze Dong Lijuan Zhang Rui
(Institute of HVAC&GAS Engineering, Tongji University, Shanghai 201804, China)
Abstract a simplified mathematical model for ground heat exchanger was established based on the linear source
theory and energy conservation which was validated by experimental data from real geothermal heat pump (GHP)
applications in Shanghai to analysis the performance of a single U-shaped ground heat exchanger under different
geological and climate conditions. In addition, suitability evaluation model of ground heat exchanger based on
analytic hierarchy process (AHP) was established to evaluate the suitability of GHP in several regions.
Keywords ground heat exchanger; geological and climate conditions; suitability evaluation; AHP
理论上建立并求解完全符合实际情况的传热模型
0 前言
是十分困难的。本文建立了基于线源理论的单 U 形
土壤源热泵地下竖直地埋管换热器中的传热地埋管换热性能简易计算模型,并在上海地区对该
过程是三维非稳态的传热,影响因素非常复杂。不模型进行了实验验证,利用该模型,分析了我国几
同地区的气候特征、地质特征、钻孔形式、管材形个地区地埋管换热器的换热性能