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本文对世博国家电网馆半室外空间进行了被动式环境控制设计,采用建筑自遮阳、风压强化自然通风、太阳烟囱热压自然通风、细水雾降温组合的方案,以改善参观人员的舒适度。使用CFD模拟、多区域网络法和能量平衡法计算了建筑风压贯穿通风、太阳烟囱热压通风和细水雾降温的效果。选取当前通用的基于舒适标准和安全标准的室外热舒适评价模型SET和WBGT,对舒适度改善的效果进行了评估。研究结果表明,采用被动式环境控制设计后,世博会期间统计(典型年气象参数)不满足舒适(SET>30℃)小时数从901(20%)降至154(3%),不满足安全(WBGT>32℃)小时数从203(5%)降至10(0%)。
In this paper, the semi-outdoor space of the Expo State Grid Museum was designed with passive environment control. The scheme of self-shading of buildings, natural ventilation of wind pressure intensification, natural ventilation of the sun chimney, natural cooling of the water chimney and cooling combination of water mist were adopted to improve the comfort of the visitors. CFD simulation, multi-area network method and energy balance method were used to calculate the effect of building wind pressure ventilation, solar chimney heat pressure ventilation and water mist cooling. The effects of comfort improvements were evaluated by using the current common outdoor thermal comfort evaluation models SET and WBGT based on comfort and safety standards. The results show that the comfort (SET> 30 ℃) hours of statistics (typical annual meteorological parameters) decreased from 901 (20%) to 154 (3%) during the Expo, > 32 ° C) hours decreased from 203 (5%) to 10 (0%).