A Study on the Flame Behavior of Whirl Eire and Pool Fire

Whirl Fire와 Pool fire의 화염 거동에 관한 연구

  • Published : 2004.09.01

Abstract

4-panel of 1m height and 45cm width were fixed on the $40cm{\times}40cm$ bottom plate and the opening of the panel comer was 5cm. Diameter of stainless vessel is loom and its height is 2cm and it located at the center of the bottom plate. 78mL liquid fuel was filled in the vessel and its depth was 1cm. Flame temperature was measured with K type thermocouple, and radiation heat of flame was measured with heat flux meter. Flame height and its behavior was visualized with video camera. and mass burning rate was measured by fuel combustion time. According to the development of fire, flame swirling was begin. From the experiment the mass burning rate was larger and the height of flame was higher than the usual pool fire flame. Flame temperature and heat flux also increased far more than the pool fire. Consequently the swirling air flow through the openings between the panel and thermal buoyance contribute to increase of heat release rate, flame length and mass burning rate.

Keywords

References

  1. Howard W. Emmons, Shuh-jing Ying, 'The Fire Whirl', 11th Symp. on Combustion 1966, The Combustion Institute, pp. 475-488, 1967
  2. A. Muraszew, J. B. Fedele, and W. C. Kuby, 'The Fire Whirl Phenomenon', 1976 Fall meeting, Combustion Institute. Oct. 1976
  3. Satoh, K and Yang, K. T., 'Experimental Observations of Swirling Fires', Proceedings of the International Mechanical Engineering Congress Exhibition, Atlanta, GA, USA, ASME HTD-Vol. 335, 400, 1996
  4. Satoh, K, Yang, K .T. and Kuwahara K., 'Comparison between Experimental and Numerical Si mulations due to a Single flame in a Square Cha nnel with Comer Gaps', 4th Asia Oceanian Symp. on Fire Science and echnology, Tokyo Japan, pp. 577-586, 2000
  5. Satoh, K. and Yang, K .T., 'Simulations of Swirling Fires Controlled by Channeled Self Generated Entrainment Flows', Proceedings of the 5th International Symposium on Fire Safety Science, Melbourne, Australia, pp. 201-212, 1997
  6. Satoh, K .and Yang, K. T., 'Study of Swirling Fires in a Vertical Channel with a Single Gap', Proceedings of the 35th National Heat Transfer Symposium of Japan, Nagoya,' Paper No. B321, 1998
  7. Satoh, K. and Yang, K. T., 'Experiments and Numerical Simulations of Swirling Fires due to 2 X 2 Flames in a Channel with a Single Ga', Proceedings of the 1998 ASME International Mechanical Engineering Congress and Exposition, Anaheim, CA, ASME HTD-VoI.2, pp. 49-56, 1998
  8. James G. Quintiere,'"Principles of Fire Behavio'", Delmar Publisher, pp70-140, 1997
  9. 平野 敏右 著: 김홍, 오규형, 양희준, 인세진 譯,' 연소학', 동화기술, pp. 92-202, 1997