| 基于热响应测试的分层土壤地埋管换热器数值模拟研究 |
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| 引用本文： | 盛建军,;刘金祥,;戴霖姗,;陈峰,;陈高峰,;章亚武.基于热响应测试的分层土壤地埋管换热器数值模拟研究[J].建筑节能,2014(7):45-48. |
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| 作者姓名： | 盛建军 ;刘金祥 ;戴霖姗 ;陈峰 ;陈高峰 ;章亚武 |
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| 作者单位： | [1] 南京工业大学,南京210009; [2] 南京索思道科技有限公司,南京210017; [3] 江苏苏中设备安装集团有限公司,南京210009 |
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| 基金项目： | 江苏省科技计划项目（BY2012032） |
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| 摘 要： | 结合热响应测试数据，建立了三维分层土壤地埋管换热器非稳态模型，并进行了验证。通过分析比较单层、分层土壤地埋管换热器模型，结果显示分层土壤地埋管模型误差较小；通过分层土壤地埋管模型分析了100 m、80 m、60 m深度埋管的换热性能，结果显示增加埋深时，单位延米换热量随着埋深的增加而减小，验证了热短路现象存在性。
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| 关 键 词： | 地埋管换热器 分层土壤 热响应测试 三维数值模拟 埋深 |
Numerical Simulation of Ground Heat Exchanger in Layer Soil Based on the Thermal Response Test |
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| Affiliation: | SHENG Jian-jun, LIU Jin-xiang, DAI Lin-shan, CHEN Feng, CHEN Gao-feng, ZHANG Ya-wu (1.Nanjing University of Technology, Nanjing 210009, China; 2.Nanjing Suosidao Technology Co. Ltd., Nanjing 210017, China; 3.Jiangsu Suzhong Equipment Installation Group Co. Ltd., Nanjing 210009, China) |
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| Abstract: | A three-dimensional unsteady stratified soil ground heat exchanger model is established and validated with the data of thermal response test. By comparing analysis of ground heat exchanger in single-layer and layered soil models, the results show that the ground heat exchanger model of layered soil error is smaller;the heat transfer performance of buried pipes at 100 m, 80 m and 60 m depth are analyzed through the ground heat exchanger model of layered soil, results show that heat of the unit linear meter decreases with the increasing buried depth, and verify the existence of the thermal short circuit. |
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| Keywords: | ground heat exchanger layer soil thermal response text 3-D numerical simulation burial depth |
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