| Title |
Understanding the Impact of Decadal Climate Change on Building Cooling Design in Seoul Amidst Soaring Summer Temperatures |
| DOI |
https://doi.org/10.5659/JAIK.2023.39.11.187 |
| Keywords |
Climate change; Building energy code; Cooling systems; Design outdoor condition; Peak cooling load; System-rated power |
| 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°C.
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°C(DB)/25.7°C(WB) throughout the year. During the cooling season, with a 2.5% risk, it reached 32.7°C(DB)/25.8°C(WB), deviating from
the current energy-saving standard of 31.2°C(DB)/25.5°C(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. |