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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 improves the indoor air quality while saving energy. It is an effective way to reduce the building energy consumption by making maximum use of natural ventilation during the transitional season. By taking an office building in Shijiazhuang as an example, the potential of natural ventilation technology in Shijiazhuang area is analyzed first. Then the indoor environment in natural ventilation is simulated by using CFD and PMV and PPD as evaluation indexes, The results show that the natural ventilation effectiveness is 27.88% in Shijiazhuang area, indoor PMV value is between -1 and 1 under natural ventilation and PPD is kept below 14.