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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:

期数:

2011年03期

页码:

37-40

栏目:

出版日期:

2011-06-30

文章信息/Info

Title:

Numerical Analysis of Thermal Disturbancearound Ground Source Vertical Multi-Pipes

作者:

黄晓蕾¹; 蒋绿林²;  王艳霞²;  陆 鹏³;  李 明³

1.常州卓越新能源工程技术有限公司, 江苏 常州 213016; 2.常州大学 石油工程学院, 江苏 常州 213016; 3.常州市大成房地产开发有限公司,江苏 常州 213016

Author(s):

HUANG Xiao-lei¹ ;  JIANG Lv-lin²;  WANG Yan-xia²; LU Peng³; LI Ming³

1.Changzhou Zhuoyue New Energy Engineering and Technology Ltd,Changzhou 213016,China; 2. School of Petrolem Engineering,Changzhou University, Changzhou 213016,China; 3. Changzhou DachengReal Estate Exploitation Ltd,Changzhou 213016,China

关键词:

土壤源热泵;  传热过程;  热干扰;  孔间距

Keywords:

ground source heat pump system;  heating transmission;  thermal disturbance;  gap of vertical multi-pipes

分类号:

TK11+3

文献标志码:

A

摘要:

通过建立物理、数学模型,利用Matlab中的PDE工具箱求解埋管周围的温度场分布状况,分别得出单个埋管在不同的时间段连续运行工况下的土壤温度场。再应用叠加原理得出钻孔管群的温度场,分析埋管的间距为3 m、4 m和5 m时钻孔群间的热干扰及不同的孔间距、运行时间等因素造成埋管出口水温度的变化。随着运行时间的增加,钻孔中心温度逐渐升高,钻孔热作用半径逐渐增大,但是钻孔间距较大时,钻孔中心温度的变化很缓慢,说明钻孔热作用半径基本在3 m以内。综合实际工程情况,钻孔间距取4.5 m。

Abstract:

This study uses the PDE tool in the Matlab software to solve and get the temperature field around the bore,and then analyzes the temperature field and heat transmission through the superposition principle around multi-pipes in some conditions, the time when the disturbance happens, the gap and result in the vertical multi-pipes; Analyzes the water temperature change of pipe outlet because of different bore spacing, run-time factors,etc. As the running time increased, core temperature and bore thermal effect radius increased gradually, but the bore center temperature changed slowly when there was larger gap. It proved that the role of borehole heat was in the 3 m radius of the basic less. In the actual a situation, drilling spacing can be 4.5 m

备注/Memo

备注/Memo:

作者简介:黄晓蕾(1985-),女,江苏扬州人,硕士; 通讯联系人:蒋绿林。

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更新日期/Last Update: 2011-06-30