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Energies 2013, 6(9), 4352-4376; doi:10.3390/en6094352
Article

Assessment of Seasonal Energy Efficiency Strategies of a Double Skin Façade in a Monsoon Climate Region

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Department of Architectural Engineering, Yonsei University, Seoul 120-749, Korea
* Author to whom correspondence should be addressed.
Received: 14 June 2013 / Revised: 24 July 2013 / Accepted: 7 August 2013 / Published: 23 August 2013
(This article belongs to the Special Issue Energy Efficient Building Design 2013)
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Abstract

As climate change and global warming have become two of the most significant environmental issues today, the double-skin façade (DSF) is getting considerable attention as an energy-efficient passive design. This study is aimed at assessing the seasonal energy efficiency strategies of a DSF targeting library facilities in the climate region with hot summers and cold winters. Toward this end, this study was conducted in four steps: (i) establishment of seasonal energy-efficient strategies; (ii) application of seasonal energy-efficient strategies; (iii) analysis of energy saving effect by season; and (iv) life cycle cost and life cycle CO2 analyses for selecting an optimal DSF. Results show that a shaft box DSF energy model (EMS) #2, which applied winter strategies, was optimal with an energy saving rate of 4.13%, while a multi-story DSF energy model (EMM) #5, which applied summer strategies, was optimal with an energy saving rate of 12.67%. In terms of savings to investment ratio (SIR40) and breakeven point (BEP40), the multi-story DSF (3.20; 9 years) was superior. The results of this study can be used for (i) seasonal energy efficiency strategies of a DSF in East Asian monsoon climates, and (ii) as a guideline for the application of a DSF both in existing and new buildings.
Keywords: double skin façade (DSF); airflow operating method; thermal insulation; green wall; energy-saving effect; life cycle cost; life cycle CO2; East Asian monsoon climate; library facility double skin façade (DSF); airflow operating method; thermal insulation; green wall; energy-saving effect; life cycle cost; life cycle CO2; East Asian monsoon climate; library facility
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Hong, T.; Kim, J.; Lee, J.; Koo, C.; Park, H.S. Assessment of Seasonal Energy Efficiency Strategies of a Double Skin Façade in a Monsoon Climate Region. Energies 2013, 6, 4352-4376.

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