[1]方肇洪,贾林瑞,张方方,等.中深层地埋管群的传热分析[J].山东建筑大学学报,2021,36(02):1-8.[doi:10.12077/sdjz.2021.02.001]
 FANG Zhaohong,JIA Linrui,ZHANG Fangfang,et al.Analysis on the heat transfer of deep borehole cluster[J].Journal of Shandong jianzhu university,2021,36(02):1-8.[doi:10.12077/sdjz.2021.02.001]
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中深层地埋管群的传热分析()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
36
期数:
2021年02期
页码:
1-8
栏目:
研究论文
出版日期:
2021-04-15

文章信息/Info

Title:
Analysis on the heat transfer of deep borehole cluster
文章编号:
1673-7644(2021)02-0001-08
作者:
方肇洪贾林瑞张方方崔萍*
(山东建筑大学 热能工程学院,山东 济南 250101)
Author(s):
FANG Zhaohong JIA Linrui ZHANG Fangfang CUI Ping*
( School of Thermal Engineering, Shandong Jianzhu University, Jinan 250101 )
关键词:
地源热泵地埋管换热器传热叠加原理降维
Keywords:
ground source heat pump borehole heat exchanger heat transfer superposition principle dimension reduction
分类号:
TU833+.3
DOI:
10.12077/sdjz.2021.02.001
文献标志码:
A
摘要:
在地源热泵和热储能的应用中,多个地埋管换热器通常构成一个集群。文章提出了一个中深层地埋管群的传热模型,考虑到不均匀的地层及地温梯度,同时摒弃了传统模型中孔壁温度和热流均匀的简化假设,并在数学上证明了叠加原理对该模型是有效的,因此可将中深层地埋管群的三维传热问题分解为多个单孔地埋管的二维传热问题。在此基础上,提出了一种用于模拟中深层地埋管群内传热的降维算法,该算法具有较高的精度,并使计算效率有数量级的提升。
Abstract:
Multiple deep boreholes constitute a cluster in its ground-coupled heat pump and thermal energy storage applications. A heat transfer model of deep borehole cluster is established, rejecting the simplified assumption of uniform temperature and heat flow on the borehole wall, and taking into account the geothermal gradient in heterogeneous subsurface. The concept of superposition principle is proved valid to such models on certain conditions, and the three-dimensional heat conduction problem of deep borehole cluster may be decomposed into a number of two-dimensional ones of the single boreholes. Then, a new dimension reduction algorithm is proposed for simulation of heat transfer in the deep borehole cluster, and the efficiency of numerical simulation can be improved by orders of magnitude.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-12-09 基金项目:山东省自然科学基金项目 (ZR2020ME219); 山东省重点研发计划(重大科技创新工程)项目(2019JZZY020801) 作者简介:方肇洪(1945-), 男,教授,博士,主要从事地源热泵领域地下传热技术等方面的研究。E-mail:fangzh@sdjzu.edu.cn 通讯作者*:崔萍(1976-), 女,教授,博士,主要从事可再生能源建筑利用技术等方面的研究。E-mail:sdcuiping@sdjzu.edu.cn
更新日期/Last Update: 2021-04-15