化工学报2024，Vol.75Issue(z1)：76-84,9.DOI:10.11949/0438-1157.20240666
中深层U型地埋管换热器取热特性研究
Research on heat extraction performance of deep U-type borehole heat exchanger
摘要
Abstract
Based on the open-source numerical simulation software OpenGeoSys,a 3D numerical model is established,which fully considered the size characteristics of deep U-type borehole heat exchanger(DUBHE)and the distribution of complex geological parameters.The effect of factors affecting the hourly circulating temperature of the DUBHE and the long-term heat extraction performance are analyzed in this study.The thermal performance test results show that the outlet temperature of the DUBHE drops rapidly in the initial stage of operation,and gradually stabilizes in the later stage of operation.The sensitivity analysis shows that the geothermal gradient,drilling depth of the descending and ascending wells,and the length of the horizontal well have significant effects on the performance of DUBHE.The relevant conclusion will be conducive to guiding the project design and application.关键词
再生能源/中深层U型地埋管换热器/数值模拟/传热/取热性能Key words
renewable energy/deep U-type borehole heat exchanger/numerical simulation/heat transfer/heat extraction performance分类
能源科技引用本文复制引用
胡俭,姜静华,范生军,刘建浩,邹海江,蔡皖龙,王沣浩..中深层U型地埋管换热器取热特性研究[J].化工学报,2024,75(z1):76-84,9.基金项目
陕西省重点研发计划高校联合项目(2023GXLH-032) （2023GXLH-032）
