Owing to the depletion of global fossil energy and the increasing environmental awareness of environmental protection, the use of shallow geothermal energy has been receiving widespread attention. In this study, two sets of groundwater-based heat pipe (GBHP) systems were fabricated to explore the application of heat pipes in shallow geothermal energy and tested through lawn heating experiments during the winter. Results of the experiment showed that the vertical diameter of the heat pipe did not have any significant effect on its heat transfer performance, and the maximum difference in temperature between the horizontal section of the east and west heat pipes during the observation period was 1.6 °C. Furthermore, the heat pipe exhibited good isothermicity with a constant operation, with the average temperature difference between the condensation and evaporation sections were 2.1 °C. The heat pipe also exhibited good thermal conductivity, the thermal resistance accounting for only 1% of the total thermal resistance in the heat transfer process. The maximum heat transfer power of a single heat pipe was found to be 202 W. This study presents a new approach for the application of shallow geothermal energy.

由于全球化石能源的枯竭和环保意识的增强，浅层地热能的利用受到广泛关注。本研究制作了两套地下水基热管（GBHP）系统，探索热管在浅层地热能中的应用，并通过冬季草坪采暖实验进行测试。实验结果表明，热管的垂直直径对其传热性能没有任何显着影响，观测期间东西热管水平截面的最大温差为1.6℃ . 此外，热管在恒定运行下表现出良好的等温性，冷凝段和蒸发段之间的平均温差为 2.1 °C。热管还表现出良好的导热性，在传热过程中热阻仅占总热阻的1%。单根热管的最大传热功率为 202 W。本研究为浅层地热能的应用提供了一种新方法。