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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

Volume 51, 2020 Volume 50, 2019 Volume 49, 2018 Volume 48, 2017 Volume 47, 2016 Volume 46, 2015 Volume 45, 2014 Volume 44, 2013 Volume 43, 2012 Volume 42, 2011 Volume 41, 2010 Volume 40, 2009 Volume 39, 2008 Volume 38, 2007 Volume 37, 2006 Volume 36, 2005 Volume 35, 2004 Volume 34, 2003 Volume 33, 2002 Volume 32, 2001 Volume 31, 2000 Volume 30, 1999 Volume 29, 1998 Volume 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2019026510
pages 1149-1161


Liang Wang
Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China; School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China
Yu-Hong Dong
Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China
Shichuan Su
School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China
Chengyin Wei
School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China
Haibin Cui
School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China
Chenyu Guo
School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China


Ventilation is relatively poor in the engine room of ships, and the oxygen content is typically decreased due to the oxygen consumption by many types of power machinery. If a fire occurs in the engine room, its development mechanism will be impacted by the initial oxygen concentration. The experiments in this study involve a confined space with dimensions of 1.5 m × 1.5 m × 1 m and a circular pool with diameters of 8 cm, 10 cm, 12 cm, and 16 cm. The initial oxygen concentration YO2 in the confined space is taken to be 18%, 18.5%, 19%, 19.5%, 20%, 20.5%, and 21%. By comparatively analyzing the changes in fuel mass, burning rate, and flame length, it is found that a lower initial oxygen concentration corresponds to the additional residual fuel mass. The fire extinction time increases with decreasing initial oxygen concentration. Furthermore, the mass burning rate decreases linearly with decreasing initial oxygen concentration. The stability stage of fuel combustion almost disappears at low oxygen concentrations (18.5-20.5%) and contains only the growth stage and declining stage, in which the growth stage period increases with decreasing initial oxygen concentration. In addition, the flame length is found to be coupled to the initial oxygen concentration, and a nonlinear expression for the flame length based on the mass burning rate and oxygen concentration is established.


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