Protection from thermal radiation of hazardous fires: Optimizing microscale droplet size in mist barriers using radiative transfer analysis

Hiroki Gonome, Taichi Nagao, Yuto Takagi, Mizuho Ono, Takuma Kogawa, Shuichi Moriya, Junnosuke Okajima

研究成果: Article査読

6 被引用数 (Scopus)

抄録

The incidence of large-scale fires continues to rise, and the effects of radiation from these fires contributes to their continued spread. Water sprays have been widely used as an effective method to contain thermal radiation from fires. Results from previous studies on the sizes of water droplets in the spray barrier have limitations due to the significant computational time or complex analytical procedure involved. The aim of this study is to determine the optimal size of water droplets in the barrier mist using radiative transfer analysis for effective shielding of the radiation from the surroundings. The radiative properties of water droplets were analyzed using the Mie scattering theory and a radiative transfer analysis of the mist layer was performed. This demonstrated that the spectral reflectance of the mist layer can be controlled by the water droplet diameter. The effectiveness of optimizing the water droplet size in the mist layer to maximize protection from thermal radiation was also validated by experiments to evaluate the radiation shielding performance of the mist barrier.

本文言語English
ページ(範囲)114-120
ページ数7
ジャーナルProcess Safety and Environmental Protection
143
DOI
出版ステータスPublished - 2020 11月

ASJC Scopus subject areas

  • 環境工学
  • 環境化学
  • 化学工学(全般)
  • 安全性、リスク、信頼性、品質管理

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