采用岩土集总热阻计量模型确定地埋管换热量方法
来源:    发布时间: 2011-10-19 10:13   1175 次浏览   大小:  16px  14px  12px
采用岩土集总热阻计量模型确定地埋管换热量方法

本文分析了现有岩土热物性传热模型精确求解的困难,对确定地源热泵系统地埋管换热量的方进行了探讨,建立了岩土集总热阻计量误差修正模型及其精确求解分析体系,进而开发了新型测试仪和分析软件,并对多个实际工程项目进行了测试分析,获得了地埋管逐时延米换热量曲线及其设计推荐值,进而探讨了进行地埋管设计计算与运行效果评估的方法与操作步骤。

关键词:岩土热物性 热响应试验 岩土集总热阻计量模型 误差分析体系 逐时延米换热量 操作步骤

 

Discussion on the Test Method with Metering Model of Integrated Thermal Resistance for Heat Exchange Capacity Determination for the Closed-loop Ground-coupled Pipe


Zheng Liangcun, Zhang Maoyong, Ma Ning, Wei Wei, Hao Jun
( Shandong Yateer Group, Jinan, Shandong,250011 )

 

Abstract: This paper analyzes the difficulties of exact solution of existing ground thermal properties heat transfer models, discusses the method for determination of the GSHP system ground-coupled pipe’s heat exchange capacity, and establishes the modification model for metering error of integrated ground thermal resistance and analysis system for its exact solution. A new test instrument and analysis software are developed to test and analyze a number of actual projects, and get the curve of the heat exchange capacity of unit hour and unit meter of the closed-loop ground-coupled pipe and its recommendation value for design.Then further discusses the method and operation steps for the calculation of pipe design and performance evaluation.

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