Study on heat transfer performance of metro tunnel capillary heat exchanger
Study on heat transfer performance of metro tunnel capillary heat exchanger
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DOI：
10.1016/j.scs.2018.11.016
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发表时间：
2019-02
影响因子：
11.7
通讯作者：
Li Tong;Huang Songtao;L. Shan;Yimei Wang
中科院分区：
文献类型：
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作者：
Li Tong;Huang Songtao;L. Shan;Yimei Wang
地铁隧道毛细管换热器是将毛细管沿着地铁隧道壁面敷设的一种空调热泵系统前端换热器。采用数值模拟的方法分析了地铁隧道毛细换热器在不同管间距下的传热特性。结合系统的调节和运行情况，得出了适合地铁隧道毛细管换热器的最佳管间距。通过实验测试，得出了砂埋管毛细换热器的温度分布规律和换热特性，验证了模拟值的正确性。
The metro tunnel capillary heat exchanger, which is to lay the capillary along the wall surface of the subway tunnel, is a kind of front end heat exchanger of the air conditioning heat pump system. The numerical simulation is used to analyze the heat transfer characteristics of the metro tunnel capillary heat exchanger with different pipe spacings. Combined with the system regulation and operation, the optimal pipe spacing suitable for the metro tunnel capillary heat exchanger was obtained. Through experimental tests, we concluded the law of temperature distribution and the heat transfer characteristics of the sand with the capillary heat exchanger were buried, the correctness of the simulated value was verified.