Lifecycle CO 2 Reduction by Implementing Double Window Casement Systems in Residential Units in Korea

Chang Heon Cheong, Taeyeon Kim and Seung-Bok Leigh
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Chang Heon Cheong: Department of Architectural Engineering, Gyeongnam National University of Science and Technology, 33 Donjinro Jinju 660-758, Korea
Taeyeon Kim: Department of Architectural Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Korea
Seung-Bok Leigh: Department of Architectural Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Korea

Energies, 2015, vol. 8, issue 2, 1-17

Abstract: This study investigated lifecycle CO 2 (LCCO 2 ) emission reductions through application of double-window casement systems (DWCS) in residential units in Korea, compared with conventional single windows (SWs). The DWCS is a double window system that is energy-efficient, reducing energy consumption during operation. However, this system incorporates increased embodied CO 2 emissions. We evaluated LCCO 2 reductions associated with use of the DWCS by calculating CO 2 emissions during space conditioning as well as the embodied CO 2 emissions of the DWCS. The results showed that use of DWCS in a residential unit during the cooling season had 26.2 and 27.4 t CO 2 fewer emissions than SWs in the natural ventilation and minimum ventilation modes, respectively. Although implementation of DWCS is expected to substantially reduce LCCO 2 emissions, the large embodied CO 2 emissions of the aluminum frame reduce the benefits of the DWCS.

Keywords: double-window system; residential unit; lifecycle CO 2; energy simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
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