太原理工大学学报2016，Vol.47Issue(6)：734-740,7.DOI:10.16355/j.cnki.issn1007-9432tyut.2016.06.010
基于土壤分层的土壤空气换热器温度场模拟研究
Simulation Research about Soil Temperature of Air-to-earth Heat Exchanger based on Stratified Soil with Different Soil Moisture
摘要
Abstract
The model of soil was stratified according to soil moisture.The soil temperature of air-to-erath heat exchanger was simulated with Fluent6.3.The results show that the variation of soil temperature around heat exchanger was similar to the change of inlet temperature of heat ex-change.The soil temperature at measuring points in vertical and horizontal direction with an e-qual distance was different because of the thermal properties of stratified soil.Along the direction of depth,the soil temperature around heat transfer tubes (Z ≤450 mm)was influenced by the heat transfer tubes,near-surface (Z >450 mm)soil temperature was impacted by thermal effect on soil surface.The simulation and experiment results are in a good agreement.关键词
土壤空气换热器/土壤温度场/耦合传热/数值模拟/试验验证Key words
air-to-earth heat exchanger/soil temperature/conjugate heat transfer/numerical simulation/validated by experiment method分类
建筑与水利引用本文复制引用
秦旖,杜震宇,余敏,范毅..基于土壤分层的土壤空气换热器温度场模拟研究[J].太原理工大学学报,2016,47(6):734-740,7.基金项目
国家自然科学基金资助项目:日光温室热湿环境作用下土壤-空气热湿传递规律及数理模型研究(51476108) （51476108）
