石家庄地区自然通风潜力及室内热舒适性分析

Analysis of Potential Natural Ventilation and Indoor Thermal Comfort in Shijiazhuang Area

自然通风技术在节能的同时提高了室内空气品质,在过渡季节最大限度利用自然通风是降低建筑能耗的有效途径.通过以石家庄某办公建筑为对象,首先分析了自然通风技术在石家庄地区的应用潜力,进而通过建立模型,以PMV、PPD为评价指标,利用CFD方法对自然通风状态下室内环境进行了模拟分析,研究结果表明石家庄地区自然通风有效性为27.88%,自然通风状态下室内PMV值在-1~1之间,PPD保持在14以下.

Natural ventilation technology will not only save building energy but also improve the in-door air quality. Using natural ventilation in transitional seasons is an effective way to reduce building en-ergy consumption. Firstly, an office building in Shijiazhuang is analyzed on potential natural ventilation ap-plication in Shijiazhuang area. The CFD is applied to calculate the indoor environment by PMV and PPD. The results show that natural ventilation effectiveness in Shijiazhuang area is 27.88%, the indoor PMV val-ue with natural ventilation is between-1 to 1, PPD remains less than 14.