{"title":"Using CO2 Hydrate and Air Flow to Extinguish Flame from Wood Materials","authors":"S. Y. Misyura, V. S. Morozov, P. A. Strizhak","doi":"10.1134/S1810232825010060","DOIUrl":null,"url":null,"abstract":"<p>This paper presents experimental studies on using CO<sub>2</sub> 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> hydrate powder demonstrated performance exceeding by far that of the other materials. The pressed cylindrical tablet of CO<sub>2</sub> 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> 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>","PeriodicalId":627,"journal":{"name":"Journal of Engineering Thermophysics","volume":"34 1","pages":"62 - 73"},"PeriodicalIF":1.3000,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Engineering Thermophysics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S1810232825010060","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
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.
期刊介绍：
Journal of Engineering Thermophysics is an international peer reviewed journal that publishes original articles. The journal welcomes original articles on thermophysics from all countries in the English language. The journal focuses on experimental work, theory, analysis, and computational studies for better understanding of engineering and environmental aspects of thermophysics. The editorial board encourages the authors to submit papers with emphasis on new scientific aspects in experimental and visualization techniques, mathematical models of thermophysical process, energy, and environmental applications. Journal of Engineering Thermophysics covers all subject matter related to thermophysics, including heat and mass transfer, multiphase flow, conduction, radiation, combustion, thermo-gas dynamics, rarefied gas flow, environmental protection in power engineering, and many others.
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