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Heat Transfer Research
Factor de Impacto: 1.199 Factor de Impacto de 5 años: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN Imprimir: 1064-2285
ISSN En Línea: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2019029235
pages 359-376


Dongmei Huang
College of Quality & Safety Engineering, China Jiliang University, Hangzhou, 310018, P.R. China
Qi Yuan
College of Quality and Safety Engineering, China Jiliang University, Hangzhou, Zhejiang, 310018, China
Yu Wang
Laboratory of Fire Science, Fire Department of ZheJiang Province, Hangzhou, Zhejiang, 310014, China
YiWei Hu
College of Quality and Safety Engineering, China Jiliang University, Hangzhou, Zhejiang, 310018, China
Yongliang Chen
College of Quality and Safety Engineering, China Jiliang University, Hangzhou, Zhejiang, 310018, China
Liming Shen
Xilinmen Furniture Co., Ltd, Shaoxing 312000, Zhejiang, China
Long Shi
Civil and Infrastructure Engineering Discipline, School of Engineering, RMIT University, Melbourne, VIC 3001, Australia


The natural latex foam plays a significant role in our daily lives. Fire behaviors over natural latex foam under bottom ventilation conditions differs greatly from the normal one, and the influences of bottom ventilation conditions on fire behaviors were rarely addressed in the literature. Therefore, fire behaviors of thermally thin natural latex foam under different bottom ventilation conditions (bottom holes dimension from 0 mm to 15.0 mm) were investigated experimentally. It was known from the experiments that the combustion characteristic time decreased significantly with bigger bottom holes of dimension up to 4.0 mm, and then it kept the same, even the size continuing increasing. Flame showed a hollow structure under bottom ventilation. The flame spread rate of sample with 1.6 mm bottom holes was obviously lower than the others. A linear relationship was found between the flame spread rate and bottom hole dimension when it was larger than 2.3 mm. The flame spread for those samples with bottom hole dimension less than 1.6 mm almost happened at the sample surface, while for others happened both at the surface and at the bottom after bottom ignition. The preheat length showed an increasingly linear relationship with the dimension of the bottom hole.


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