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Sustainability 2016, 8(2), 187; doi:10.3390/su8020187

Determination of Optimum Window to External Wall Ratio for Offices in a Hot and Humid Climate

Faculty of Architecture, Department of Architecture, Eastern Mediterranean University, Mersin 10, Turkey
Academic Editor: Adrian Pitts
Received: 7 January 2016 / Revised: 15 February 2016 / Accepted: 17 February 2016 / Published: 20 February 2016
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Abstract

Heat loss and gain through windows has a very high impact on the thermal comfort of offices. This paper analyzes a standard low energy consumption university office that has a standard envelope. Dynamic thermal simulations with EDSL Tas software, a predicted mean vote (PMV), and a predicted percentage of dissatisfied (PPD) with all local discomfort as stated in ASHRAE, ISO 7730: 2005, EN 15251: 2007 were used for thermal sensation, in order to optimize the best window to external wall proportion in a hot and humid climate that exists in the Famagusta case study. A simulated office building is oriented east to west in order to take advantage of the wind direction. In May 45% (PPD < 6%–0.7% open window), 93% (PPD < 10–0.2 open window), and 97% (PPD < 15%–0.1% open window) thermal comfort scores are obtained when the window to external wall ratio (WWR) is 10%. In October 43% (PPD < 6%–0.7% open window), 86% (PPD < 10–0.2 open window), and 92% (PPD < 15%–0.1% open window) thermal comfort scores are obtained when the WWR is 10%. In September 49% (PPD < 10% full open window) and 51% (PPD < 15%–0.1% open window) thermal comfort scores are obtained when the WWR is 10%. View Full-Text
Keywords: PMV-PPD; ISO; ASHRAE; EDSL Tas; low energy design; sustainable buildings; thermal comfort; hot-humid climate PMV-PPD; ISO; ASHRAE; EDSL Tas; low energy design; sustainable buildings; thermal comfort; hot-humid climate
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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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Alibaba, H. Determination of Optimum Window to External Wall Ratio for Offices in a Hot and Humid Climate. Sustainability 2016, 8, 187.

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