1. CFD analyses for passive house with Trombe wall and impact to energy demand
- Author
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Maja Todorović, Jelena Svorcan, and Tamara Bajc
- Subjects
Engineering ,Energy demand ,business.industry ,020209 energy ,Mechanical Engineering ,02 engineering and technology ,Building and Construction ,Structural engineering ,Computational fluid dynamics ,Continental climate ,021001 nanoscience & nanotechnology ,7. Clean energy ,13. Climate action ,0202 electrical engineering, electronic engineering, information engineering ,Trombe wall ,Daylight ,Passive house ,Electrical and Electronic Engineering ,0210 nano-technology ,business ,Overheating (electricity) ,Civil and Structural Engineering ,Typical meteorological year - Abstract
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.
- Published
- 2015