土壤-空气换热器是一种浅层地热利用技术（Earth-to-air heat exchanger, EAHE），可以显著降低建筑能耗。当与太阳能烟囱(Solar chimney ,SC)耦合时，利用太阳能烟囱制造的热压将新鲜空气引入室内环境的同时还可以消除房间的部分负荷。该文旨在探究在夏热冬冷地区SC-EAHE系统改善建筑室内热环境的效果。实验结果表明：夏季工况下，配置SC-EAHE系统的测试房间相比对比房间夏季室内温度最高能降低3.2℃，与室外空气相比最大温降为5.9℃，换气次数在2.2~10.1次/h；冬季最大升温1.6℃，与室外空气相比最大温升为15.5℃，换气次数在3.4~13.5次/h。建筑得热量最大的外表面是屋顶和南墙，与没有EAHE的对比房间相比，在夏季工况下，南墙内表面平均温度降低约1.1℃，屋顶内表面温度几乎保持一致；冬季工况下，南墙内表面平均温度升高1.5℃，屋顶内表面平均温度升高1.7℃。

The earth-to-air heat exchanger (EAHE) is a shallow geothermal energy utilization technology, which can significantly reduce the building energy consumption. When the solar chimney (SC) combines with EAHE and buildings, a new passive ventilation and cooling system is established, in which the fresh air is cooled and induced into the chamber. This paper aims to investigate the effect of the system on the indoor thermal environment in hot-summer and cold-winter regions and analyze the discrepancy of the building envelope with/without SC-EAHE. Experimental results showed that EAHE provides an air temperature reduction of 3.2℃ under summer conditions and an increase of 1.6℃ under winter conditions compared with that of reference chamber, and the air change rate are 2.2-10.1 air changes per hour (ACH) and 3.4-13.5 ACH, respectively. Compared with the temperature of ambient air, the air temperature of test room has a maximum decrease of 5.9℃ in summer and an increase of 15.5℃ in winter. The external wall of southern wall and roof gained the highest solar irradiation compared with other envelop surfaces. The average temperature of the interior southern wall reduce about 1.1℃ and the roof keep the same during summer. In winter, the average temperature of the interior southern wall and roof both increase 1.5℃ and 1.7℃ ,respectively.

国家自然科学基金项目（面上项目，重点项目，重大项目）