Experimental investigations of extinguishing sodium pool fires using modified expandable graphite powders

Mei-Lin Zhang; Xi-Lin Dong; Yan Tang; An-Chi Huang; Fang Chen; Qing-Chun Kang; Zhong-Jun Shu; Zhi-Xiang Xing

Case Studies in Thermal Engineering (Apr 2022)

Experimental investigations of extinguishing sodium pool fires using modified expandable graphite powders

Mei-Lin Zhang,
Xi-Lin Dong,
Yan Tang,
An-Chi Huang,
Fang Chen,
Qing-Chun Kang,
Zhong-Jun Shu,
Zhi-Xiang Xing

Affiliations

Mei-Lin Zhang: School of Environmental and Safety Engineering, Changzhou University, No. 21, Gehu mid-Rd., Wujin Dist., Changzhou, 213164, Jiangsu, China
Xi-Lin Dong: Corresponding author.; School of Environmental and Safety Engineering, Changzhou University, No. 21, Gehu mid-Rd., Wujin Dist., Changzhou, 213164, Jiangsu, China
Yan Tang: Corresponding author.; School of Environmental and Safety Engineering, Changzhou University, No. 21, Gehu mid-Rd., Wujin Dist., Changzhou, 213164, Jiangsu, China
An-Chi Huang: Corresponding author.; School of Environmental and Safety Engineering, Changzhou University, No. 21, Gehu mid-Rd., Wujin Dist., Changzhou, 213164, Jiangsu, China
Fang Chen: School of Environmental and Safety Engineering, Changzhou University, No. 21, Gehu mid-Rd., Wujin Dist., Changzhou, 213164, Jiangsu, China
Qing-Chun Kang: School of Environmental and Safety Engineering, Changzhou University, No. 21, Gehu mid-Rd., Wujin Dist., Changzhou, 213164, Jiangsu, China
Zhong-Jun Shu: School of Environmental and Safety Engineering, Changzhou University, No. 21, Gehu mid-Rd., Wujin Dist., Changzhou, 213164, Jiangsu, China
Zhi-Xiang Xing: School of Environmental and Safety Engineering, Changzhou University, No. 21, Gehu mid-Rd., Wujin Dist., Changzhou, 213164, Jiangsu, China

Journal volume & issue: Vol. 32
p. 101911

Abstract

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A new type of composite fire-extinguishing powder was prepared with expandable graphite (EG) and sodium carbonate as the main materials. The morphology, structure, and thermal stability of the extinguishing powder were characterized. A fire-extinguishing experimental system was subsequently constructed to investigate the powder's fire-extinguishing performance for sodium fires. The results indicated that, compared with the unmodified EG, the modified EG had a 62.53% lower particle size and exhibited higher thermal stability. The fire control mechanism was also analyzed; the results revealed that sodium carbonate and EG exert a synergistic effect on flame suppression, and sodium carbonate improves fire-extinguishing efficiency.

Published in Case Studies in Thermal Engineering

ISSN: 2214-157X (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: http://www.journals.elsevier.com/case-studies-in-thermal-engineering/

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