Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Understanding the Impact of Decadal Climate Change on Building Cooling Design in Seoul Amidst Soaring Summer Temperatures

하절기 기온상승에 따른 건축물 냉방 시스템 설계에 미치는 영향 - 서울지역의 최근 10년간 기후변화와 중심으로 -

  • Cho, Jinkyun (Dept. of Building and Plant Engineering, National Hanbat University)
  • 조진균 (국립한밭대학교 설비공학과)
  • Received : 2023.09.03
  • Accepted : 2023.10.20
  • Published : 2023.11.30
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Abstract

This research examines how climate change impacts building systems, specifically in adapting outdoor conditions for cooling system design. Over a 40-year period, data from 131,760 daily climate points in nine cities consistently revealed a temperature rise of at least 1.5℃. Additionally, analysis of 46,920 daily maximum temperatures showed that the number of days when cooling systems fall short due to outdoor conditions exceeding design limits was approaching 30 days. By analyzing hourly meteorological data from Seoul over the past decade, this study assessed changes compared to current outdoor design conditions. The temperature distribution, with a 1.0% risk rate, averaged 32.4℃(DB)/25.7℃(WB) throughout the year. During the cooling season, with a 2.5% risk, it reached 32.7℃(DB)/25.8℃(WB), deviating from the current energy-saving standard of 31.2℃(DB)/25.5℃(WB). In a case study of an office building in Seoul, the research compared the peak cooling load under current design conditions referred to as Baseline with the load under outdoor conditions referred to as Case 1, carrying a 2.5% risk during the cooling season. These findings revealed a 17.9% increase in the building's heat transfer load. Consequently, the equipment capacity within the cooling system increased by 7.9% for the AHU and 9.1% for the plant and pump systems. This resulted in an overall 8.5% increase in the power requirements of the equipment.

Keywords

Acknowledgement

본 성과는 2023년도 과학기술정보통신부의 재원으로 한국연구재단의 지원을 받아 수행된 연구임 (No. 2022R1F1A1068262).

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