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Mechanical cooling energy reduction for commercial buildings in hot climates: effective use of external solar shading incorporating effects on daylight contribution

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conference contribution
posted on 10.11.2016, 11:13 by John Brittle, Mahroo EftekhariMahroo Eftekhari, Steven FirthSteven Firth
This paper investigates the effectiveness of multiple external shading devices and identifies the most effective fixed external shading configurations for commercial building types in hot climates. Daylight contribution is also analysed in detail in order to monitor the daylighting factor reduction including uniformity for each shading configuration. Existing dynamic thermal modeling software is used to completing analysis on a theoretical open office plan building. Simulation results indicate that multiple angled external shading is the most effective solution for commercial buildings in hot climates. The calculated diurnal cooling load reduction for East, South and West elevations are 46.20%, 41.16% and 46.53% respectively. Furthermore, daytime cooling load (kW) reduction is reduced by 17.80% using the optimum solution. All dynamic thermal simulations are compared against a base case to clearly show possible cooling energy reduction (MWh) and carbon dioxide emissions (CO2) associated with cooling system for single storey open office building.

History

School

  • Architecture, Building and Civil Engineering

Published in

Proceedings of BS 2013: 13th Conference of the International Building Performance Simulation Association

Pages

975 - 982

Citation

BRITTLE, J.P., EFTEKHARI, M. and FIRTH, S.K., 2013. Mechanical cooling energy reduction for commercial buildings in hot climates: effective use of external solar shading incorporating effects on daylight contribution. IN: Wurtz, E. (ed.) Proceedings of BS 2013: 13th Conference of the International Building Performance Simulation Association, 26th-28th August 2013, Chambéry, France. IBPSA, pp. 975 - 982

Publisher

© International Building Performance Simulation Association (IBPSA)

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2013

Notes

This is a conference paper.

Language

en

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