Dispersion and explosion characteristics of multi-phase fuel with different charge structure

IF 6.9 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL Process Safety and Environmental Protection Pub Date : 2024-09-24 DOI:10.1016/j.psep.2024.09.096

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Abstract

The fuel dispersion and explosion laws are important for safety design of fuel charge, concentration prediction of accidental release vapor cloud and prevention of fire and explosion accidents. The charge structure is an important factor in determining the fuel dispersion and explosion performance. Experiments and numerical simulations are carried out for cylindrical, square and fan-shaped charge structures. The dispersion process, concentration distribution, explosion overpressure, component reaction and safety radius of 11 kg solid-liquid-gas propylene oxide (PO) are obtained. The results show that square and fan-shaped structure have local enhancement effect. Compared with cylindrical structure, the dispersion distance of square at 0° and fan-shape at 45° increase by 10.13 % and 14.39 % respectively. The peak overpressure increased by 8.85 % and 4.73 %. At 4 m, the remaining fuel of the three structures is 39.13 %, 22.34 % and 17.20 %, respectively. The equivalent safety radius is 14.20 m, 14.80 m and 14.27 m respectively.

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不同装料结构的多相燃料的分散和爆炸特性

燃料弥散和爆炸规律对于燃料装料的安全设计、意外释放蒸汽云的浓度预测以及火灾和爆炸事故的预防都非常重要。装料结构是决定燃料分散和爆炸性能的重要因素。针对圆柱形、方形和扇形装料结构进行了实验和数值模拟。得出了 11 千克固液气环氧丙烷（PO）的分散过程、浓度分布、爆炸超压、组分反应和安全半径。结果表明，方形和扇形结构具有局部增强效果。与圆柱形结构相比，方形结构在 0° 和扇形结构在 45° 时的分散距离分别增加了 10.13 % 和 14.39 %。峰值超压分别增加了 8.85 % 和 4.73 %。在 4 米处，三种结构的剩余燃料分别为 39.13 %、22.34 % 和 17.20 %。等效安全半径分别为 14.20 米、14.80 米和 14.27 米。

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来源期刊

Process Safety and Environmental Protection 环境科学-工程：化工

CiteScore

11.40

自引率

15.40%

发文量

929

审稿时长

8.0 months

期刊介绍： The Process Safety and Environmental Protection (PSEP) journal is a leading international publication that focuses on the publication of high-quality, original research papers in the field of engineering, specifically those related to the safety of industrial processes and environmental protection. The journal encourages submissions that present new developments in safety and environmental aspects, particularly those that show how research findings can be applied in process engineering design and practice. PSEP is particularly interested in research that brings fresh perspectives to established engineering principles, identifies unsolved problems, or suggests directions for future research. The journal also values contributions that push the boundaries of traditional engineering and welcomes multidisciplinary papers. PSEP's articles are abstracted and indexed by a range of databases and services, which helps to ensure that the journal's research is accessible and recognized in the academic and professional communities. These databases include ANTE, Chemical Abstracts, Chemical Hazards in Industry, Current Contents, Elsevier Engineering Information database, Pascal Francis, Web of Science, Scopus, Engineering Information Database EnCompass LIT (Elsevier), and INSPEC. This wide coverage facilitates the dissemination of the journal's content to a global audience interested in process safety and environmental engineering.