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Abstract <p>This paper presents experimental studies on using CO<sub>2</sub>&#xa0;hydrate to extinguish the flame from burning pine shavings. The area of shavings combustion was exposed to an external air flow. The flame was suppressed by means of various agents common in fire extinguishing: sand, NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub>, water, and foam. In terms of the minimum mass spent on suppression of burning of shavings, CO<sub>2</sub>&#xa0;hydrate powder demonstrated performance exceeding by far that of the other materials. The pressed cylindrical tablet of CO<sub>2</sub>&#xa0;hydrate showed the maximum time required for extinguishing the flame. Thermal imaging measurements showed that in the presence of forced air motion, the water vapor and CO<sub>2</sub>&#xa0;gas flows resulting from dissociation enter the combustion area unevenly, which leads to decrease in the extinguishing efficiency. Carbon dioxide hydrate powder is the most efficient means for extinguishing flame of wood materials.</p>

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Using CO2 Hydrate and Air Flow to Extinguish Flame from Wood Materials

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • S. Y. Misyura,
  • V. S. Morozov,
  • P. A. Strizhak

摘要

Abstract

This paper presents experimental studies on using CO2 hydrate to extinguish the flame from burning pine shavings. The area of shavings combustion was exposed to an external air flow. The flame was suppressed by means of various agents common in fire extinguishing: sand, NH4H2PO4, water, and foam. In terms of the minimum mass spent on suppression of burning of shavings, CO2 hydrate powder demonstrated performance exceeding by far that of the other materials. The pressed cylindrical tablet of CO2 hydrate showed the maximum time required for extinguishing the flame. Thermal imaging measurements showed that in the presence of forced air motion, the water vapor and CO2 gas flows resulting from dissociation enter the combustion area unevenly, which leads to decrease in the extinguishing efficiency. Carbon dioxide hydrate powder is the most efficient means for extinguishing flame of wood materials.