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2024 Vol.18, Issue 5 Preview Page

Research Article

Analysis of the Impact of Extended Data Point Measurement Time on Uncertainty in the Blower Door Test

블로어도어 실험의 데이터 포인트 측정시간 연장에 따른 불확도 영향 분석

Ji-Hoon Choi1
,
Ji-Hye Kim2*
최 지훈1
,
김 지혜2*
1Master Course Student, Department of Architectural Engineering, Graduate School, Kwangwoon University, Seoul, Korea
2Assistant Professor, Department of Architectural Engineering, Kwangwoon University, Seoul, Korea
1광운대학교 일반대학원 건축공학과 석사과정
2광운대학교 공과대학 건축공학과 조교수
*Corresponding Author
30 October 2024. pp. 412-427
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Abstract

Uncontrolled air leakage through windows and cracks in buildings is referred to as infiltration, which leads to increased heating and cooling energy consumption and deteriorates indoor air quality. The airtightness performance of a building is primarily evaluated using the pressurization method with a blower door, and the reliability of this evaluation is determined by the flow exponent(n) and the coefficient of air leakage (CL) derived from the test. However, blower door tests are subject to variability in measurements due to factors such as external wind speed and indoor-outdoor temperature differences. So, previous researchers have extended the measurement time of Zero-flow pressure difference or proposed new regression methods such as Weighted Line of Organic Correlation (WLOC) and Iterative Weighted Least Squares (IWLS) to reduce measurement uncertainty. This study analyzed how extending the measurement time of data points and applying WLOC improves the reliability of airtightness measurements.

Keywords
Blower door test
Airtightness
Uncertainty
Regression method
OLS
WLOC
키워드
블로어도어 실험
기밀성능
불확도
회귀방법
OLS
WLOC
References
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2

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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 : 18
  • No :5
  • Pages :412-427
  • Received Date : 2024-07-26
  • Revised Date : 2024-09-21
  • Accepted Date : 2024-09-24
  • DOI :https://doi.org/10.22696/jkiaebs.20240035
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