技术中心

地热换热器U型埋管的传热模型及热阻计算 【英文篇名】 Heat transfer model and thermal resistance calculation of U-shape buried pipe of geothermal heat exchangers 【作者中文名】 崔萍; 刁乃仁; 方肇洪; 孙长亮; 【作者英文名】 By Cui Ping; Diao Nairen; Fang Zhaohong and Sun Changliang Shandong Institute of Architecture and Engineering; Jinan; China; 【作者单位】 山东建筑工程学院; 济南市四建集团房地产开发有限责任公司; 【文献出处】 暖通空调, Hv 地热换热器; 热阻; 【英文关键词】 ground source heat pump; geothermal heat exchanger; thermal resistance; 【摘要】 讨论了地源热泵地热换热器竖直U型埋管钻孔内的二维稳态传热模型。基于钻孔内的温度场的二维解析解 ,得出钻孔热阻表达式。分析了影响钻孔热阻的几个相关因素 ,通过与一维简化模型得到的钻孔热阻相比较 ,认为采用二维模型可以为工程设计提供更准确可靠的热阻数据 【英文摘要】 Discusses a two dimensional steady state heat transfer model in the borehole for vertical U shape buried pipe of geothermal heat exchanger of the ground source heat pump (GSHP) system. According to the analytical solution of temperature distribution in the borehole, obtains an expression of the thermal resistance between the circulating fluid and the borehole wall. Analyses the influencing factors of the borehole thermal resistance. In comparison with the simplified one dimensional model, the new model ... 【基金】 山东省自然科学基金资助项目 (项目编号 :Y99F0 2 )