摘要
随着地源热泵技术在城市的快速发展,地下换热器系统的用地问题日益显现,为进一步减少钻孔所占地面面积,增强单位面积埋管的换热强度,创造性地建立了伞状地埋管换热器模型。通过FLUENT软件对其模型进行了非稳态的流固耦合换热模拟研究。模拟表明,采用与水平面成75°角的U型换热管、集热管径为4 m的伞状地埋管换热量最大,热积聚效应最小。
With the rapid development of ground source heat pump technology in the city, the underground heat exchanger system of land use problems emerging, in order to further reduce drilling covering workshop area, enhancing unit area buried pipe of the intensity of heat transfer, this paper creatively established the model of umbrella ground heat exchanger. This paper establishes the 2 d and 3 d numerical heat transfer model of u-shaped buried tube and uses the FLUENT software to study its unsteady fluid-structure coupling heat transfer. Calculation results show that heat transfer amount is the largest and heat accumulation effect is minimal for the Umbrella buried tube with water level at 75°and tube spacing distance at 4m.
出处
《洁净与空调技术》
2015年第3期5-9,共5页
Contamination Control & Air-Conditioning Technology
基金
吉林省高等学校大学生创新创业训练项目吉林建筑大学创新资助项目(201301)
吉林省教育厅"十二五"科学技术研究项目(吉教科合字2014年240号)
关键词
土壤源热泵
温度场
伞状地埋管
数值模拟
Soil source heat pump
temperature field
Umbrella buried tube
The numerical simulation
