An Improved Radiation Transport Submodel for CFAST
作者:
Jhon B. Hoover,
Jean L. Bailey,
Patricia A. Tatem,
期刊:
Combustion Science and Technology
(Taylor Available online 1997)
卷期:
Volume 127,
issue 1-6
页码: 213-229
ISSN:0010-2202
年代: 1997
DOI:10.1080/00102209708935694
出版商: Taylor & Francis Group
关键词: Fire model, zone model, CFAST;absorption;radiation;model validation
数据来源: Taylor
摘要:
Radiative heat transfer is of major importance in many large-scale fires. Therefore, a new extinction coefficient algorithm has been developed for the Consolidated Fire Growth and Smoke Transport (CFAST) zone model. The new algorithm estimates extinction coefficient as a function of temperature and absorber concentrations. A developmental version of CFAST (2.2.1) was used, with and without the new algorithm. to simulate a large-scale, shipboard fire. For the fire compartment and the deck (floor) directly above, predictions from both models compared well with experimental results. The improved radiation model gave much better results for the adjacent compartment. Neither model compared well with the experimental results for the remainder of the compartments, suggesting that there is still room for improvement to CFAST.
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