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      FAÇADE DESIGN EFFECT ON CROSS-VENTILATION IN TAIWANESE SCHOOL BUILDINGS

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          Abstract

          This study performed a three-dimensional numerical prediction for the induced airflow patterns and mean age of air (MAGE) around and inside a naturally ventilated school building, while accounting for the wind profile effect. Various fenestrations, hallways, and shading devices on the windward side of building were analyzed to determine how they affected wind velocity, the incident angle of airflow, and MAGE distribution inside classrooms. The numerical scheme is based on a commercial computational fluid dynamics (CFD) code, PHOENICS. The incline of incoming wind was observed on higher floors that decreased the air exchange rate in the simulated room. The inclined airflow could be effectively deflected downward through the breathing zone by hallways, 1.2-m shades as overhangs, and 0.6-m louvers. Based on this research, an appropriate combination of external attachments on the windward side of building façade can be utilized to enhance ventilation in school buildings. (See Appendix 1 for nomenclature.)

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          Most cited references 36

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          Appropriate boundary conditions for computational wind engineering models using the k-ϵ turbulence model

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            Ventilation performance prediction for buildings: A method overview and recent applications

             Q. Chen (2009)
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              What is ventilation efficiency?

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                Author and article information

                Journal
                jgrb
                Journal of Green Building
                College Publishing
                1552-6100
                1943-4618
                1943-4618
                Spring 2013
                : 8
                : 2
                : 90-111
                Author notes
                aCorresponding author: H.H. Hsu, Ph.D. Candidate, Tel.: +886-931338860, Fax: +886-2-27376721, E-mail: ashine.hsu@ 123456gmail.com (mainly), faye0421@ 123456msn.com . Department of Architecture, National Taiwan University of Science and Technology, Taiwan.
                Article
                jgb.8.2.90
                10.3992/jgb.8.2.90
                ©2013 by College Publishing. All rights reserved.
                Page count
                Pages: 22
                Product
                Categories
                RESEARCH ARTICLES

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