The Influence of Natural and Forced Convection in Attics – A CFD Analysis

Examensarbete för masterexamen

Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12380/215318
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Type: Examensarbete för masterexamen
Master Thesis
Title: The Influence of Natural and Forced Convection in Attics – A CFD Analysis
Authors: Bengtson, Andreas
Fransson, Victor
Abstract: In this thesis project, the air and heat flow in a principal insulated cold attic model has been numerically investigated through the use of the commercial CFD software ANSYS Fluent. A numerical model for the heat transfer has been developed and verified with experiments on a simple box model containing insulation and an overlying horizontal air cavity. This numerical model was then applied on a cold attic model with insulation and wooden joists. Both situations with pure natural convection, caused by the temperature difference between the hot floor of the attic and the cold roof, as well as situations where the attic in addition was exposed to forced convection in the form of attic ventilation has been investigated. This project has been a collaboration between ÅF Industry AB and the Division of Building Technology at Chalmers University of Technology.
Keywords: Building Futures;Byggnadsteknik;Building Futures;Building engineering
Issue Date: 2014
Publisher: Chalmers tekniska högskola / Institutionen för bygg- och miljöteknik
Chalmers University of Technology / Department of Civil and Environmental Engineering
Series/Report no.: Examensarbete - Institutionen för bygg- och miljöteknik, Chalmers tekniska högskola : 2014:155
URI: https://hdl.handle.net/20.500.12380/215318
Collection:Examensarbeten för masterexamen // Master Theses



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