Analysis of Building Heating and Cooling Load Disaggregation using Monthly Energy and Hourly Outdoor Temperature

Ki-Uhn Ahn; Deuk-Woo Kim; Hye-Gi Kim

doi:10.22696/jkiaebs.20250015

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2025 Vol.19, Issue 4 Preview Page Next Page

Research Article

Analysis of Building Heating and Cooling Load Disaggregation using Monthly Energy and Hourly Outdoor Temperature 월별 에너지와 시간 단위 외기온도 데이터를 이용한 건물 냉난방 부하 분리 분석

30 August 2025. pp. 170-179

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Abstract

This study introduces a novel data-driven methodology to assess the integrated heating and cooling performance of buildings while simultaneously separating heating, cooling, and base loads, using only monthly energy consumption and hourly outdoor temperature data. Unlike conventional approaches that require detailed building physical parameters and extensive sub- metering, the proposed method optimizes building-specific base temperatures for both heating and cooling through an R² maximization process. Using these optimal base temperatures, Heating and Cooling Degree Hours (HDH/CDH) are calculated and aggregated into an Intrinsic Degree Hour (IDH) index, which serves as the sole predictor in a single linear regression model. This model yields two key parameters: a unified performance coefficient, representing the combined responsiveness of the building to both heating and cooling loads, and a base load constant, representing non-weather-dependent energy use. The methodology enables accurate decomposition of monthly energy consumption into its constituent load types, offering a practical, scalable solution for large-scale building stock analysis without detailed building data.

Keywords

Building energy load disaggregation

Monthly energy data

Hourly outdoor temperature

키워드

건물 에너지 부하 분리

월별 에너지 데이터

시간 단위 외기온도

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Information

Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
Publisher(Ko) :한국건축친환경설비학회
Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
Journal Title(Ko) :한국건축친환경설비학회논문집
Volume : 19
No :4
Pages :170-179
Received Date : 2025-08-12
Revised Date : 2025-08-14
Accepted Date : 2025-08-16
DOI :https://doi.org/10.22696/jkiaebs.20250015

Journal of Korean Institute of Architectural Sustainable Environment and Building Systems ISSN:1976-6483(Print) 2586-0666(Online) 한국건축친환경설비학회논문집

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