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Mass Loss and Air Entrainment Rate of Whirl Fire by Height of Fire Source  

Park, Hyung-Ju (호원대학교 소방행정학과)
Publication Information
Fire Science and Engineering / v.25, no.2, 2011 , pp. 126-131 More about this Journal
Abstract
This study is intended to understand mass loss rate and air entrainment rate of the whirl fire by height of fire source. Liquid fuels were methanol and n-Heptane which are used in many studies of whirl fire. Size of vessel was 100 mm ${\times}$ 100 mm ${\times}$ 50 mm and the vessel was made by stainless steel. When height of fire source changed from 0 cm to 30 cm, air entrainment rate showed the fastest in case of 0 cm. And in the same height of fire source, average and maximum air entrainment rate showed the fastest in 30 cm of anemometer. From the results of whirl fire for methanol and n-Heptane, mass loss rate and air entrainment rate of n-Heptane was found to faster 1.33 to 1.58 times and 4.38 to 5.44 times compared with methanol, respectively. Consequently, mass loss rate and air entrainment rate in whirl fire was able to identified decrease as height of fire source increases and the higher the heating value, increases the that's value.
Keywords
Whirl fire; Mass loss rate; Air entrainment rate; Methanol; N-heptane;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Ken Matsuyama, Naohisa Ishikawa, Yoshifumi Ohmiya, Shu-ichi Tanaka, Futoshi Tanaka, and Yoshihiko Hayashi, "A Study on Generation and Development Mechanisms of Fire Whirls, Part 1 Experimental Analysis using the Reductive Scale Model", Fire Science and Technology Special Issue, Vol.26, No.4, pp.297-302(2007)   DOI   ScienceOn
2 이성은, "회오리 화염의 연소특성과 수치해석에 관한연구", 호서대학교대학원 박사학위논문, pp.1-6(2006).
3 오규형, 이성은, "Fire whirl의 연소특성에 관한 연구", 한국안전학회 2005년도 추계학술발표 논문집, pp.114-120(2005).
4 K.H. Chuah, K. Kuwana, and K. Saito, "Modeling a Fire Whirl Generated over a 5-cm-diameter Methanol Pool Fire", Combustion and Flame, Vol.156, No.9, pp.1828-1833(2009).   DOI   ScienceOn
5 강연옥, 오규형, 이성은, "Fire Whirl의 한계에 관한연구", 한국안전학회 2004년도 추계학술 발표회, pp.96-101(2004).
6 강연옥, 오규형, 이성은, "Whirl Fire와 Pool Fire의 화염 거동에 관한 연구", 한국안전학회지, Vol.19, No.3, pp.45-50(2004).
7 배승용, 유홍선, 홍기배, "굴참나무 낙엽의 Fire Whirl 특성에 관한 실험 및 수치해석 연구", 한국화재소방학회 논문지, Vol.23, No.3, pp.73-78(2009).
8 이성은, 오규형, "회오리 화염의 연소특성과 FDS를 이용한 회오리 화염 해석에 관한 연구", 한국화재소방학회 2007년도 춘계학술논문발표회 논문집, pp.332-337(2007).
9 K. Matsuyama, T. Kobayashi, and Y. Ohmiya, "An Experimental Study on a Fixed-frame Type Fire Whirl", Fire Science & Engineering, Interflam 2007, pp.1403-1408(2007).
10 Kuwana Kazunori, Morishita Satoshi, and Dobashi Ritsu, "Theoretical and Numerical Study on Flame Height of Axisymmetric Laboratory-Scale Fire Whirls", Journal of the Combustion Society of Japan, Vol.51, No.155, pp.56-62(2009)
11 K.H. Chuah and G. Kushida, "The Prediction of Flame Heights and Flame Shapes of Small Fire Whirls", Proceedings of the Combustion Institute, Vol.31, No.2, pp.2599-2606(2007).   DOI   ScienceOn
12 최상열, 유홍선, "회전강도가 Fire Whirl의 특성에 미치는 영향에 관한 실험연구", 한국안전학회지, Vol.20, No.2, pp.11-17(2005).
13 Jiao Lei, Naian Liu, Linhe Zhang, Haixiang Chen, Lifu Shu, Pu Chen, Zhihua Deng, Jiping Zhu, Kohyu Satoh and John L. de Ris, "Experimental Research on Combustion Dynamics of Mediumscale Fire Whirl", Proceedings of the Combustion Institute, Vol.33, No.2, pp.2407-2415 (2011).   DOI   ScienceOn
14 K. Kuwana, S. Morishita, and R. Dotashi, "The Burning Rate's Effect on the Flame Length of Weak Fire Whirls", Proceedings of the Combustion Institute, Vol.33, No.2, pp.2425-2432(2011).   DOI   ScienceOn
15 D.W. Goens, "Fire Whirls", NOAA Technical Memorandum NWS WR-129, Missoula, MT(1978).