1. 宁夏回族自治区国土资源调查监测院
2. 宁夏回族自治区矿山地质环境监测与生态修复创新团队
3. 广西交投科技有限公司
4. 中国地质大学(武汉)工程学院
纸质出版:2025
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李鹏, 李杭哲, 杨超, 等. 套管式地埋管换热器换热性能数值模拟[J]. 地质科技通报, 2025,44(6):110-120.
李鹏, 李杭哲, 杨超, et al. 套管式地埋管换热器换热性能数值模拟[J]. Bulletin of Geological Science and Technology, 2025, 44(6): 110-120.
李鹏, 李杭哲, 杨超, 等. 套管式地埋管换热器换热性能数值模拟[J]. 地质科技通报, 2025,44(6):110-120. DOI: 10.19509/j.cnki.dzkq.tb20240032.
李鹏, 李杭哲, 杨超, et al. 套管式地埋管换热器换热性能数值模拟[J]. Bulletin of Geological Science and Technology, 2025, 44(6): 110-120. DOI: 10.19509/j.cnki.dzkq.tb20240032.
浅层地热能是一种清洁、稳定的可再生能源,地埋管地源热泵是开发利用浅层地热能进行建筑物供暖制冷的常用技术。地埋管换热器作为换热主体,目前常用的形式为U型的PE管换热器。然而,随着新材料新技术的发展和突破,地埋管换热器材料及埋管类型对于换热效率的提升具有一定的改善作用。因此,开展不同材料及埋管类型换热性能研究具有一定的工程实践意义。在浅层地热能开发利用中,套管式地埋管换热器的研究应用较少。以浅层套管式地埋管换热器为研究对象,开展换热性能数值模拟研究,分析了套管式地埋管换热器的换热性能及其敏感性因素,同U型地埋管换热器进行了换热.效果的对比研究。结果表明:套管式地埋管换热器换热性能的敏感性因素强弱依次为进口温度、土壤初始温度、循环流量、套管及内管材料、回填材料导热系数;同等条件下,U型地埋管换热器换热效果比套管式地埋管换热器高8.57%;当套管式地埋管换热器的套管为钢材、内管为绝热材料时,其换热效果较U型地埋管换热器提高了21.64%。研究成果可为浅层埋管技术的研究及应用提供参考依据。
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