CFD analyses for passive house with Trombe wall and impact to energy demand
CFD analyses for passive house with Trombe wall and impact to energy demand
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DOI：
10.1016/j.enbuild.2014.11.018
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发表时间：
2015-07-01
影响因子：
6.7
通讯作者：
Svorcan, Jelena
中科院分区：
文献类型：
--
作者：
Bajc, Tamara;Todorovic, Maja N.;Svorcan, Jelena
本文对典型大陆性气候年份（TMY）中Trombe壁面和相邻房间数天的温度场进行了全面的三维数值CFD分析。Trombe墙的结构得到了优化，在墙的外面使用了不同类型的玻璃。在夏天，为了防止过热，玻璃被认为在白天被PV条纹覆盖。墙的中央混凝土核心在外面覆盖了一层深色涂料，以提高墙的吸收率。Trombe墙朝向房子的南侧，设计有混凝土核心的开口和襟翼。这些开口在打开和关闭的位置进行模拟。房屋围护结构的u值是根据被动式房屋标准考虑的。模拟了混凝土芯和带有Trombe墙的房间的温度场和速度场。根据这些结果，进行了节能潜力分析。(C) 2014 Elsevier B.V.版权所有
The paper deals with a comprehensive, three-dimensional numerical CFD analysis of temperature fields in Trombe wall and in the adjacent room for several days of a typical meteorological year (TMY) for a moderate continental climate. Construction of the Trombe wall is optimized, using different types of glassing on the outside of the wall. For summer day, the glass is considered to be covered with PV stripes during the daylight in order to prevent overheating. The central concrete core of the wall is covered with a layer of dark paint, on the outside, to improve absorptivity of the wall. The Trombe wall is oriented on south side of the house, and designed with openings with flaps in concrete core. Those openings are simulated in opened and closed positions. The U-values of the house envelope are considered according to passive house standards. Temperature fields in concrete core and in the room with Trombe wall are simulated, as well as velocity fields. According to these results, analysis of energy savings potential is performed. (C) 2014 Elsevier B.V. All rights reserved.