【摘要】 在“双碳”目标背景下，建筑被动节能措施逐渐成为国内外学者关注的热点之一。基于太阳能烟囱与地埋管耦合系统(SC-EAHE)对有无外遮阳措施的自然通风与降温效果进行对比测试分析。实验结果表明，SC-EAHE系统单独作用时，通风量最高为206.7 m~3/h,实验房间温度维持在25.9～27.7℃,与对比房间最大温差达1.6℃;与遮阳措施共同作用时，外遮阳有效降低了窗户的得热量，玻璃内表面温度下降明显，最高可达7.7℃,通风量最高达217 m~3/h,实验房间与对比房间室内温度最大差值达2.8℃。由此可见，外百叶遮阳的应用不仅可以阻挡太阳辐射进入室内，还可有效降低玻璃窗本身温度，减少室内外温差传热，从而降低建筑冷负荷，对室内热环境的改善效果更为显著。更多还原

【Abstract】 Under the background of "dual carbon" goals, the passive energy saving measures have gradually become one of the hot spots of domestic and international scholars. Based on the solar chimney combined with earth to air heat exchanger(SC-EAHE) system, the natural ventilation and cooling effects with and without external shading measures were experimentally investigated. The results show that when the SC-EAHE system is operated alone, the test room temperature maintains at 25.9-27.7 ℃, which can be reduced by 1.6 ℃ compared to the reference room, and the ventilation rate can reach up to 206.7 m~3/h. When the SC-EAHE system works with external shading, the external shading effectively reduce the heat gain of window, and the temperature of inner surface of glass decrease significantly, up to 7.7 ℃, and the ventilation rate is up to 217 m~3/h. The maximum difference between the test room and the reference room is 2.8 ℃. It follows that the outer shutter shading based on SC-EAHE system can not only prevent solar radiation from entering the room, but also effectively reduce the glass temperature, reduce indoor and outdoor temperature difference heat transfer, so as to reduce the building cooling load, and improve the indoor thermal environment more significantly.更多还原