AUTHOR=Wang Ruifeng , Shi Mingchuan , Zhu Ke , Yu Jun , Ren Wei , Yan Guohong , Yin Zhiqiang , Gao Shujie TITLE=Research on the heat transfer model of double U-pipe ground heat exchanger based on in-situ testing JOURNAL=Frontiers in Energy Research VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2024.1442185 DOI=10.3389/fenrg.2024.1442185 ISSN=2296-598X ABSTRACT=
The Double U-pipe ground heat exchanger, known for its simple process, cost-effectiveness, high heat exchange efficiency, and low thermal resistance, remains the predominant type of ground heat exchanger in today’s shallow geothermal energy development and utilization. In recent years, significant research has focused on the factors influencing heat transfer and the heat exchange performance of Double U-pipe ground heat exchangers through experimental testing methods. However, studies that integrate numerical simulation with