• Title/Summary/Keyword: overall heat transfere coefficient

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Overall Heat Transfer Coefficients and Thermal Performance Evaluation through Heat Flux Measurement at Nakseonjae in Changdeokgung (창덕궁 낙선재 외피 열류량 실측을 통한 열관류율 산정 및 열 성능 해석)

  • Kim, Min-Hwi;Kim, Jin-Hyo;Kwon, Oh-Hyun;Han, Wook;Jeong, Jae-Weon
    • 한국태양에너지학회:학술대회논문집
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    • 2008.11a
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    • pp.190-195
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    • 2008
  • The objective of this research is to determine overall heat transfer coefficients (K-value) of exterior wall, floor, and roof of Nakseonjae, a Korean traditional residence via field measurement of transient heat flow and temperature difference across each envelope component. Heat flow sensors and T-type thermocouple were attached on the internal and the external surface of each building component, and real-time measurement data were collected for the three consecutive summer days. The K-values determined in this research showed good agreement with other results from open literature. Peak and annual thermal loads of the traditional residence estimated by a commercial energy simulation program were compared with those for a current apartment house. The traditional house showed lower annual cooling load than that of the current building. It may caused by the fact that the traditional building has less air-tight envelopes and no fenestration passing direct solar radiation into the space.

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