콘텐츠 본문
논문 국내 국내전문학술지(KCI급) 공공데이터 기반의 건물 에너지 진단을 위한 Change Point Model의 최적 데이터 해상도 분석
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2023-12
- 저자명 김세헌, 김범준, 임한솔, 유기형, 정재원
- 학술지명 한국건축친환경설비학회지
- 발행처명 한국건축친환경설비학회
- 발행국가 국내
- 논문언어 한국어
- 연구분야 공학 > 건축공학
논문 초록 (Abstract)
This paper aims to analyze optimal resolution for energy consumption data to improve data-driven building energy consumption diagnosis with the ASHRAE change point model. A 9-floor office building is selected as a target, and hourly data is measured throughout a year. Heating, cooling, and other types of energy consumption are measured separately, to find truth values of the heating change point and cooling change point, which refers to the temperature at which the building starts heating or cooling. After the truth change point is found, the total sum of the consumption is resampled along different time intervals, to reflect various levels of data resolution. Change point models are built with each differently resampled data, and their results including change point and RMSE were compared to find the optimal time interval of the data. The result showed 2-week interval is the optimal interval. However, an unordinary pattern, which may be due to individual heating or cooling appliances being counted as appliance consumption rather than cooling or heating consumption, is observed as well. The results of this study suggest that the resolution of public data needs to be improved for the energy consumption diagnosis based on public data, and the usage of individual heating and cooling devices needs to be considered additionally in the diagnosis process.
