CUED Publications database

Stack ventilation in multi-storey atrium buildings: A dimensionless design approach

Acred, A and Hunt, GR (2014) Stack ventilation in multi-storey atrium buildings: A dimensionless design approach. Building and Environment, 72. pp. 44-52. ISSN 0360-1323

Full text not available from this repository.

Abstract

Using a simplified mathematical model, a preliminary design strategy for steady stack ventilation in multi-storey atrium buildings is developed. By non-dimensionalising the governing equations of flow, two key dimensionless parameters are identified - a ventilation performance indicator, λ, and atrium enhancement parameter, E - which quantify the performance of the ventilation system and the effectiveness of the atrium in assisting flows. Analytical expressions are determined to inform the vent sizes needed to provide the desired balance between indoor air temperature, ventilation flow rate and heat inputs for any distribution of occupants within the building, and also to ensure unidirectional flow. Dimensionless charts for determining the required combination of design variables are presented with a view to informing first-order design guidance for naturally ventilated buildings. © 2013 Elsevier Ltd.

Item Type: Article
Uncontrolled Keywords: Atrium Buoyancy Dimensionless design Multi-storey buildings Natural ventilation Stack effect
Subjects: UNSPECIFIED
Divisions: Div A > Fluid Mechanics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:04
Last Modified: 08 Dec 2014 02:16
DOI: 10.1016/j.buildenv.2013.10.007