설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제18권4호
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  • Pages.344-350
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  • 2006
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  • 1229-6422(pISSN)
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  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

수정된 체적열원모델을 이용한 실내 화재의 연기농도 예측

Numerical Prediction of Smoke Concentration in a Compartment Fire by Using the Modified Volumetric Heat Source Model

  • Kim Sung-Chan (Building & Fire Research Laboratory, National Institute of Standards & Technology) ;
  • Lee Seong-Hyuk (School of Mechanical Engineering, Chung Ang University)
  • 발행 : 2006.04.01
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초록

The present study investigates the characteristics of fire-driven heat flows and gas concentration in a compartment fire by using the modified VHS model (MVHS). The main idea of this model is to add some source terms for combustion products and oxygen consumption to the original VHS model for providing more accurate and useful information on gas concentration distributions as well as thermal fields. It is found that the present MVHS model shows fairly good agreement with the experimental data and the eddy breakup combustion model. The tilting angle of fire plume calculated by MVHS is larger than that of EBU model because the fire source of VHS is affected by ventilating flow less than EBU. However, this discrepancy is apparently reduced in the downstream region of fire source.

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참고문헌

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