4.7 Article

Prediction of radiant heat flux from horizontal propane jet fire

期刊

APPLIED THERMAL ENGINEERING
卷 106, 期 -, 页码 634-639

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2016.06.063

关键词

Radiant heat flux; Horizontal jet fire; Thermal radiation; Model evaluation

资金

  1. National Natural Science Foundation of China [51506082, 21436006, 51476075]
  2. University Natural Science Research Foundation of Jiangsu Province [15KJB620003]
  3. Priority Academic Program Development of Jiangsu Higher Education Institutions

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Jet fires are often reported to occur in process industry with lots of hazardous heat energy released. A line source model describing the flame emissive power and subsequent heat flux radiated from a horizontal propane jet fire is evaluated through a testing against experimental fire data and comparison against other models. By a review on the jet flame behavior, the correlations of the lift-off distance, flame length and radiative fraction are proposed to close the line source model in theory. It is found that the fuel jet direction holds a considerable effect on the flame behavior by comparison between horizontal and vertical jet fires. Results indicate that the lift-off distance and the flame shape influence the model prediction to some extent. Comparison of model predictions against data collected in the near field and predictions from the point source model and multipoint source model gives encouraging results relative to the validity of model system. (C) 2016 Elsevier Ltd. All rights reserved.

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