Passive cooling of the green roofs combined with night-time ventilation and walls insulation in hot and humid regions
Passive cooling of the green roofs combined with night-time ventilation and walls insulation in hot and humid regions
复制标题
湿热地区绿色屋顶的被动冷却与夜间通风和墙壁隔热相结合
DOI：
10.1016/j.scs.2018.01.027
复制
发表时间：
2018-04
影响因子：
11.7
通讯作者：
Tang MF
中科院分区：
文献类型：
--
作者：
Ran Ji;ong;Tang Mingfang;Tang MF
绿色屋顶和夜间通风是很有前途的被动降温策略。在许多研究中，这两种策略和墙体保温都是单独研究的。本文讨论了一种将这三种技术结合起来的新策略。在分析上海某单层绿色屋面建筑现场试验的基础上，利用DesignBuilder软件建立了模型，并用试验建筑进行了验证。在此基础上，模拟了无通风、夜间通风和夜间通风结合墙体保温三种情况下的绿色屋顶模型。结果表明，夜间通风运行时，室内温度降低，换气量增大。随着外墙外保温的提高，大面积绿化屋面的夜间通风降温效果更加明显。此外，本文还提出了一种简化的多元回归模型来评价湿热地区夜间通风和墙体保温相结合的绿色屋面被动降温效果。根据该模型，对于绿色屋顶的建筑，与夜间通风和墙体保温相结合的建筑相比，室内平均温度最高可降低2.3 °C。
Green roof and night-time ventilation are promising passive cooling strategies. These two strategies and walls insulation have been researched separately in many studies. In this paper, a new strategy combining the three techniques together is discussed. Based on the analyses of a field experiment of a single-story building with green roof in Shanghai, a model was established using DesignBuilder software and validated with the experimental building. And then, the model with green roof was simulated in three cases: no ventilation, night-time ventilation and night-time ventilation combined with walls insulation. Results show that when the night ventilation operated, the indoor temperature under green roof decreased while the air change rate increased. With the improvement of external walls insulation, the cooling effect of the night ventilation becomes more obvious for the extensive green roofs. Additionally, a simplified multiple regression model is proposed to assess the passive cooling of green roof which combined with night ventilation and walls insulation in hot and humid regions. According to the model, for a building with green roof, the indoor average temperature can be reduced by up to 2.3 °C compared with the building combined with night ventilation and walls insulation together.
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DOI：
10.1016/j.scitotenv.2013.04.085
发表时间：
2013-09
期刊：
The Science of the total environment
影响因子：
--
作者：
A. Speak;J. Rothwell;S. Lindley;C. L. Smith
通讯作者：
A. Speak;J. Rothwell;S. Lindley;C. L. Smith
影响因子：
6.7
作者：
M. Santamouris;A. Sfakianaki;K. Pavlou
通讯作者：
M. Santamouris;A. Sfakianaki;K. Pavlou
影响因子：
7.4
作者：
V. Tam;Jiayuan Wang;K. Le
通讯作者：
V. Tam;Jiayuan Wang;K. Le
影响因子：
12.8
作者：
K. Vijayaraghavan;U. Joshi;R. Balasubramanian
通讯作者：
K. Vijayaraghavan;U. Joshi;R. Balasubramanian
影响因子：
6.7
作者：
La Roche, Pablo;Berardi, Umberto
通讯作者：
Berardi, Umberto