Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Thermal Resistance and Convergence Regarding the Internal and External Temperature Differences of Inside Insulated Concrete Wall

내단열 콘크리트 외벽체의 실내·외 온도차에 따른 열저항 및 수렴성 분석

  • Moon, Ji-Hoon (Dept. of Architectural Design and Engineering, Incheon National University) ;
  • Ko, Myeong-Jin (Dept. of Building System Technology, Daelim University College) ;
  • Choi, Do-Sung (Dept. of Building Equipment System and Fire Protection Engineering, Chungwoon University) ;
  • Lee, Ye-Ji (Dept. of Architectural Design and Engineering, Incheon National University) ;
  • Kim, Yong-Shik (Division of Architecture & Urban Planning, Incheon National University)
  • 문지훈 (인천대학교 일반대학원 건축학과) ;
  • 고명진 (대림대학교 소방안전설비과) ;
  • 최두성 (청운대학교 설비소방학과) ;
  • 이예지 (인천대학교 일반대학원 건축학과) ;
  • 김용식 (인천대학교 도시건축학부)
  • Received : 2022.08.05
  • Accepted : 2022.10.21
  • Published : 2022.11.30
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Abstract

Accurate diagnosis in the thermal performance of opaque walls through in-situ measurement is required in various fields. Many studies have tried to reduce the difference between the theoretical resistance using ISO 6946 and the thermal resistance using ISO 9869-1. There are many factors related to the accuracy of thermal performance, but the most important factor involves the temperature differences between the internal and external. This study aims to compare thermal resistance and convergence by selecting measurement periods with internal-external temperature differences of 28.4℃, 19.7℃, and 10.8℃. The study results showed that differences between the thermal resistances was -2.3% to 0.9%, which is similar to each other; three to five days of measurement fulfilled the convergence conditions of ISO 9869-1. If the stable outdoor environment and sufficient internal-external temperature differences are satisfied, it is possible to obtain thermal resistance with convergent properties that satisfy all of the convergence conditions regardless of the degree of internal-external temperature differences.

Keywords

Acknowledgement

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임. 과제번호:NRF-2020R1A2C1102585

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