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| 垂直U型埋管换热器准三维热渗耦合模型及其实验验证 | |
| 引用本文： | 杨卫波,陈振乾,施明恒.垂直U型埋管换热器准三维热渗耦合模型及其实验验证[J].太阳能学报,2011,32(3):383-389. |
| 作者姓名： | 杨卫波 陈振乾 施明恒 |
| 作者单位： | 1. 东南大学能源与环境学院,南京210096;扬州大学能源与动力工程学院,扬州,225127 2. 东南大学能源与环境学院,南京210096;东南大学城市工程科学国际研究中心,南京210096 3. 东南大学能源与环境学院,南京,210096 |
| 基金项目： | 国家"十一五"科技支撑计划项目，中国博士后科学基金项目，建设部研究开发项目，扬州大学"新世纪人才工程"优秀青年骨干教师计划项目，扬州大学科技创新培育基金项目 |
| 摘 要： | 为了探讨热渗耦合对土壤源热泵地埋管换热的影响,基于多孔介质传热传质及地下水渗流理论,通过耦合竖直方向一维流体模型与水平面内土壤二维非稳态热渗耦合模型,建立了考虑地下水渗流影响的准三维U型埋管热渗耦合模型。基于模型的数值求解,探讨了土壤热物性及地下水渗流对埋管换热特性的影响。结果显示:土壤导热系数与比热容的增大均有利于加强埋管的换热,且地下水渗流的存在有利于强化地下埋管与周围土壤间的换热能力,提高土壤源热泵系统的运行效率。实验验证表明,所建模型具有一定的预测精度,可为地下埋管换热器传热特性的研究提供理论基础。 |
| 关 键 词： | 土壤源热泵 垂直U型埋管 准三维模型 热渗耦合 实验验证 |
A QUASI-THREE DIMENSIONAL MODEL OF VERTICAL U-BEND GROUNG HEAT EXCHANGER UNDER COUPLED HEAT CONDUCTION AND ADVECTION CONDITIONS AND ITS EXPERIMENTAL VALIDATION |
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| Yang Weibo,Chen Zhenqian,Shi Mingheng.A QUASI-THREE DIMENSIONAL MODEL OF VERTICAL U-BEND GROUNG HEAT EXCHANGER UNDER COUPLED HEAT CONDUCTION AND ADVECTION CONDITIONS AND ITS EXPERIMENTAL VALIDATION[J].Acta Energiae Solaris Sinica,2011,32(3):383-389. | |
| Authors: | Yang Weibo Chen Zhenqian Shi Mingheng |
| Affiliation: | Yang Weibo1,3,Chen Zhenqian1,2,Shi Mingheng1(1.School of Energy and Environment,Southeast University,Nanjing 210096,China,2.International Institute for Urban Systems Engineering,3.School of Energy and Power Engineering,Yangzhou University,Yangzhou 225127,China) |
| Abstract: | A quasi three-dimensional heat and advection coupling model of vertical U-bend GHE,which couples the one dimensional fluid model in vertical direction with the two-dimensional transient heat and moisture transfer model in level,was developed using the theory of heat and mass transfer in porous medium and ground water advection.Based on the numerical solution of the model,the effects of ground thermal property parameters and ground water advection on the heat transfer characteristics of U tube GHE were analy... |
| Keywords: | ground coupled heat pump vertical U bend buried coil quasi three-dimensional model coupled heat conduction and advection experimental validation |
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