TED-AJ03-128 A PRACTICAL MODEL ON FLAME SPREADING OVER MATERIALS

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概要

• 論文の詳細を見る

• Flame spreading is a very important phenomenon in the hazard assessment for fire, which is a key element in providing fire safety in buildings with engineering performance-based fire codes. A mathematical model is presented in this paper to predict the flame spreading of materials using the experimental data from cone calorimeter. Numerical prediction of the flame front position and flame spreading velocity of the ASTM LIFT test are generated The heat flux from the extemal radiation panel, irradiance from the burning part of the sample and convective heat loss to the ambient air included to model the total net heat flux incident on the specimen. A two dimensional radiation model, together with a simplified model of luminous flame emissivity, are used to characterize the radiative transfer from the flame to the sample. Simulation results agree well with with the experimental data, giving confidence that the model is reliable. Radiation is identified as an important mechanism affecting the flame spread behavior. This model can be taken as the first step for modeling flame spreading over materials for implementing engineering performance-based fire codes.

• 一般社団法人日本機械学会の論文

著者

• Chow W.

  Department Of Building Services Engineering The Hong Kong Polytechnic University

• Chow W.

  Department Of Biology The Chinese University Of Hong Kong

• Yuen W.

  Department Of Mechanical And Environmental Engineering University Of California

• LEUNG C.

  Department of Building Services Engineering, The Hong Kong Polytechnic University

• Leung C.

  Department Of Building Services Engineering The Hong Kong Polytechnic University

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