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Sustainability 2015, 7(8), 10499-10520; doi:10.3390/su70810499

Computational and Experimental Investigation for an Optimal Design of Industrial Windows to Allow Natural Ventilation during Wind-Driven Rain

1
Department of Environmental Engineering, Changwon National University, Changwon 641-773, Korea
2
Department of Eco-Friendly Offshore Plant FEED Engineering, Changwon National University, Changwon 641-773, Korea
3
Andaman Environment and Natural Disaster Research Center, Interdisciplinary Graduate School of Earth System Science and Andaman Natural Disaster Management, Prince of Songkla University, Phuket Campus 83120, Thailand
4
Ventech Corp., Changwon 641-773, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Marc A. Rosen
Received: 6 June 2015 / Revised: 24 July 2015 / Accepted: 28 July 2015 / Published: 5 August 2015
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Abstract

With an increased awareness of sustainability issues, natural ventilation has become an elegant method for reducing the costs and environmental effects of the energy that is used to maintain comfortable indoor air quality rather than using mechanical ventilation. The windows in many industrial buildings are continuously open to exhaust pollutants and intake fresh air. Though windows are functional and efficient for natural ventilation, rainwater is able to penetrate through the windows during wind-driven rain. For industries in which the moisture content affects the quality of the product, the intrusion of a large amount of rainwater through windows must be prevented without compromising the effective ventilation. The aim of this research is to determine an innovative design for windows to accomplish the optimum of high ventilation and low rain penetration. For this purpose, windows are variously innovated and tested in full-scale measurements, reduced-scale wind-tunnel measurements and computational fluid dynamics (CFD). An artificial rain and wind velocity to mimic the average of the maximum values in Korea are created. The maximum reduction in rain penetration of over 98% compared to basic 90° open windows is attained with only a 4%–9% decrement of ventilation efficiency in the two recommended designs. View Full-Text
Keywords: CFD; natural ventilation; PIV; rain penetration; windows design CFD; natural ventilation; PIV; rain penetration; windows design
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Prueksakorn, K.; Piao, C.-X.; Ha, H.; Kim, T. Computational and Experimental Investigation for an Optimal Design of Industrial Windows to Allow Natural Ventilation during Wind-Driven Rain. Sustainability 2015, 7, 10499-10520.

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