Abstract This study presents a novel heat exchanger configuration for energy pile, which is called the deeply penetrating 1-U-shape configuration. Heat transfer performance of energy pile with the proposed configuration is compared with the traditional 1-U-shape and 1-W-shape configurations to demonstrate its superior heat exchange efficiency. Parametric analysis is performed to investigate the effects of several important parameters (i.e., ratio of tube depth to pile length, tube diameter, inlet water temperature, and water flow rate) on the heat transfer performance. Simulation results indicate that a ratio of tube depth to pile length around 2.25 yields the optimal heat transfer performance.

中文翻译：

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深穿透式1U型换热器能量桩的热性能

摘要 本研究提出了一种新型的能量堆换热器配置，称为深穿透1-U形配置。将具有建议配置的能量桩的传热性能与传统的 1-U 形和 1-W 形配置进行比较，以证明其优越的热交换效率。进行参数分析以研究几个重要参数（即管深与桩长之比、管径、进水温度和水流量）对传热性能的影响。模拟结果表明，管深与桩长之比约为 2.25 可产生最佳传热性能。