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- 2018
绿化屋顶对室内热环境及人体热舒适性的影响
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Abstract:
为考察绿化屋顶在夏季对室内热环境和人体热舒适性的影响，以重庆某小区两栋同向齐高的6层住宅楼为研究对象，分别比较绿化屋顶和普通屋顶内、外表面温度及室内不同高度的温度分布情况，并进行PMV-PPD热舒适性分析.结果显示：绿化屋顶具有良好的隔热效应，室内降温效果明显，在试验期内，绿化屋顶室内平均温度较普通屋顶低4.9 ℃，且室内不同高度无明显温度分层现象；在绿化屋顶室内，PMV值均低于2，PPD值也都小于66.7%，绿化屋顶很好地改善了室内热环境，提高了人们的室内热舒适度和热满意度.
A comparative experiment was carried out in summer to investigate the inner and outer temperature distribution of 2 six-storeyed residential buildings in Chongqing, which faced the same direction and had similar height, and PMV-PPD indoor thermal comfort analysis was made of the two kinds of roofs (green and ordinary). The results showed that building insulation and cooling effect of the green roof was obviously better than that of the ordinary roof. During the test period in July, the average indoor temperature of the building with a green roof was 4.9 ℃ lower than that of the building with an ordinary roof at 14:00, and no obvious temperature stratification was detected in indoor different heights of the building with a green roof. Its indoor PMV (predicted mean vote) value was lower than 2 and its PPD (predicted percentage of dissatisfied) value was less than 66.7%. In conclusion, the green roof can significantly improve indoor thermal environment and increase human indoor thermal comfort and thermal satisfaction
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