Efficacy evaluation of bicarbonate formulations dry water fire extinguishing agents

IF 3.6 3区工程技术 Q2 ENGINEERING, CHEMICAL

Journal of Loss Prevention in The Process Industries Pub Date : 2024-09-28 DOI:10.1016/j.jlp.2024.105444

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引用次数: 0

Abstract

The fire situation has gotten worse over the past few years. To put out flames, we desperately need more effective and sustainable fire extinguishing products. The primary goal of this research is to increase the dry water (DW) core-shell structure's stability and water retention—but more significantly, to increase the structure's fire extinguishing effectiveness. The following five materials are introduced in this article: dimethyl silicone oil, lauryl ether phosphate ester (AEO-3P), gelled adhesive, gallium bicarbonate (Ca(HCO₃)₂), and magnesium bicarbonate (Mg(HCO₃)₂). The water content of DW increased to 88%–94% with the addition of gel and dimethyl silicone oil, according to thermogravimetric analysis and moisture retention tests. By altering the characteristics of the liquid-solid interface between the hydrophobic silica and the aqueous solution, lauryl ether phosphate increased the stability of the DW structure. This study also examined and contrasted the effectiveness of five commercial dry powder fire extinguishing agents and DW fire extinguishing agents in terms of fire extinguishing efficiency. The findings indicate that the Mg(HCO₃)₂ gel DW extinguishing time in n-heptane fire is the smallest (9 s), while the Ca(HCO₃)₂ gel DW extinguishing time in anhydrous ethanol fire is the shortest (9 s). The extinguishing efficiency of the two is boosted by 66% and 55%, respectively, in comparison to commercial dry powder. By developing a new kind of stable, effective, and non-toxic fire extinguishing chemical, this work has benefited the firefighting and rescue sectors.

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碳酸氢盐配方干水灭火剂的功效评估

在过去几年里，火灾形势日益严峻。为了扑灭火焰，我们迫切需要更有效、更可持续的灭火产品。本研究的主要目标是提高干水（DW）核壳结构的稳定性和保水性，但更重要的是提高该结构的灭火效果。本文介绍了以下五种材料：二甲基硅油、月桂醇醚磷酸酯（AEO-3P）、胶凝粘合剂、碳酸氢镓（Ca(HCO3)2）和碳酸氢镁（Mg(HCO3)2）。根据热重分析和保湿测试，添加凝胶和二甲基硅油后，DW 的含水量增至 88%-94%。通过改变疏水性二氧化硅与水溶液之间的液固界面特性，月桂基醚磷酸酯提高了 DW 结构的稳定性。这项研究还考察并对比了五种商用干粉灭火剂和 DW 灭火剂的灭火效率。研究结果表明，Mg(HCO3)2 凝胶 DW 在正庚烷火灾中的灭火时间最小（9 秒），而 Ca(HCO3)2 凝胶 DW 在无水乙醇火灾中的灭火时间最短（9 秒）。与商用干粉相比，两者的灭火效率分别提高了 66% 和 55%。通过开发一种稳定、有效、无毒的新型灭火剂，这项工作造福了消防和救援领域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Loss Prevention in The Process Industries 工程技术-工程：化工

CiteScore

7.20

自引率

14.30%

发文量

226

审稿时长

52 days

期刊介绍： The broad scope of the journal is process safety. Process safety is defined as the prevention and mitigation of process-related injuries and damage arising from process incidents involving fire, explosion and toxic release. Such undesired events occur in the process industries during the use, storage, manufacture, handling, and transportation of highly hazardous chemicals.