中深层地埋管地源热泵性能影响因素显著性分析  

Significant Analysis of Influencing Factors on Performance of Medium-deep Borehole Ground Source Heat Pump

作　　者：林朵童 黄帅 董建锴 李骥 姜益强 LIN Duotong;HUANG Shuai;DONG Jiankai;LI Ji;JIANG Yiqiang

机构地区：[1]哈尔滨工业大学建筑学院寒地城乡人居环境科学与技术工业和信息化部重点实验室,黑龙江哈尔滨150090 [2]中国建筑科学研究院有限公司建科环能科技有限公司,北京100101

出　　处：《煤气与热力》2025年第1期6-11,共6页Gas & Heat

基　　金：黑龙江省自然科学基金优秀青年项目(YQ2019E024)。

摘　　要：建立中深层地埋管换热器传热模型,选取钻孔深度、外管规格、地温梯度、回填材料热导率、岩土平均热导率作为影响因素,采用方差分析法计算各影响因素的贡献率,评价单一影响因素对热泵机组性能指标影响的显著性。钻孔深度对热泵机组性能指标的影响最显著,其次是地温梯度。工程实践中,在条件允许的情况下,增大钻孔深度并选址在地温梯度较大的地区,有利于热泵机组高效运行、降低能耗。The heat transfer model of the medium-deep borehole heat exchanger is established.The drilling depth,outer pipe specifications,geothermal gradient,thermal conductivity of grout material and average thermal conductivity of rock-soil are selected as the influencing factors,the contribution rate of each influencing factor is calculated by ANOVA method,and the significance of the influence of a single influencing factor on the performance index of the heat pump unit is evaluated.The drilling depth has the most significant effect on the performance index of the heat pump unit,followed by the geothermal gradient.In engineering practice,if conditions permit,increasing the drilling depth and selecting the locations in areas with high geothermal gradients are conducive to the efficient operation of the heat pump unit and reducing energy consumption.

关 键 词：中深层地埋管地源热泵 地埋管换热器 性能指标 影响因素 显著性 

分 类 号：TU833.3[建筑科学—供热、供燃气、通风及空调工程]