CFD supported modelling of double skin facades in hot arid climates

Hamza, Neveen and Underwood, Chris (2005) CFD supported modelling of double skin facades in hot arid climates. In: Ninth International Building Performance Simulation Association Conference and Exhibition, 15-18 August 2005, École Polytechnique de Montréal, Canada.

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Abstract

Previous simulations predict the possibility of reducing cooling demands in office buildings in hot arid areas if a selective double skin facade is used. The reductions on cooling loads in rooms range between 19%-40% depending on the glazing thermal and visual performance characteristics of the exterior glazing of the double skin façade. However considerable uncertainty exists about the air flow rates and temperatures experienced within the channels of these facades. In this work a CFD model is used to predict these conditions for the case of an air-conditioned building in a hot arid climate. This case uniquely allows a CFD model to be applied to the facade independent of the simulation of the main building and its plant. Results show appreciable flow rates and temperatures generated mainly by buoyancy flow over the outer facade skin.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Heat transmission, Sustainability
Subjects: K900 Others in Architecture, Building and Planning
Department: Faculties > Engineering and Environment > Geography
Depositing User: EPrint Services
Date Deposited: 24 Feb 2011 15:06
Last Modified: 08 May 2017 15:12
URI: http://nrl.northumbria.ac.uk/id/eprint/740

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