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Correlation of rate of gas temperature rise with mass loss rate in a ceiling vented compartment

  • Article
  • Engineering Thermophysics
  • Published:
Chinese Science Bulletin

Abstract

n-heptane pool fire and industrial alcohol pool fire in a ceiling vented compartment were studied experimentally. The parameters including mass loss rate and rate of gas temperature rise were investigated. The results suggest that the rate of gas temperature rise, whose variations were highly coincident with those of the mass loss rate, minimized at the moment of extinction. The correlation of the rate of average nondimensional temperature rise with mass loss rate was established. It was found that the rate of average nondimensional temperature rise may be correlated with mass loss rate via the gas heat absorption coefficient which was found to be a quadratic function of the nondimensional heat release rate for the ceiling vented compartment under study. The present study may be of practical use for estimation of the time-dependent changes in mass loss rate from the gas temperature curves.

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Acknowledgments

This work was supported by the Research Fund for the Doctoral Program of Higher Education of China (20123402110048 and 20123402120018) and the National Natural Science Foundation of China (51206157). The authors thank Bing Chen, Man Yuan, Qiang Li, Ran Tu, Jiaqing Zhang, Qize He, and Geraldine Carton for their help with the discussion.

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Authors and Affiliations

  1. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, 230026, China

    Ruiyu Chen, Shouxiang Lu, Bosi Zhang & Changhai Li

  2. Department of Civil and Architectural Engineering, City University of Hong Kong, Hong Kong, China

    Ruiyu Chen & Siuming Lo

  3. USTC-CityU Joint Advanced Research Centre, Suzhou, 215123, China

    Ruiyu Chen, Shouxiang Lu & Siuming Lo

Authors
  1. Ruiyu Chen
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  2. Shouxiang Lu
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  3. Bosi Zhang
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  4. Changhai Li
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  5. Siuming Lo
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Correspondence to Shouxiang Lu.

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Chen, R., Lu, S., Zhang, B. et al. Correlation of rate of gas temperature rise with mass loss rate in a ceiling vented compartment. Chin. Sci. Bull. 59, 4559–4567 (2014). https://doi.org/10.1007/s11434-014-0479-z

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  • DOI: https://doi.org/10.1007/s11434-014-0479-z

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