{"title":"Influence of fine water mist on gas generation of lithium-ion batteries packs fire in an energy-storage cabin","authors":"Zhen Lou, Junqi Huang, Guangchao Sun, Hengjie Qin, Huaitao Song, Zhuang Zhang, Haowei Yao","doi":"10.1016/j.psep.2025.01.019","DOIUrl":null,"url":null,"abstract":"Lithium-ion battery energy storage technology has emerged as the primary technological route for the development of new energy storage systems. However, frequent fire incidents in lithium-ion energy storage stations pose significant safety hazards. To analyze the patterns of gas generation of Lithium-ion batteries packs fire in an energy-storage cabin and to investigate the suppression effects of fine water mist fire extinguishing systems on this gas generation, the FDS software is used to model fires involving lithium battery cells and packs at a 1:1 scale in this study. The gas generation patterns under different water mist spraying parameters during the thermal runaway of lithium-ion batteries in an energy-storage cabin is investigated. The results indicated that as thermal runaway intensified and the fire spread, the production rates of CO and H₂ gradually increased, ultimately reaching gas fractions of 3.7 % and a concentration of 23 ppm, respectively. The suppression efficacy on gas generation is positively correlated with the spray flow rate, spray cone angle, and nozzle flow rate of the fine water mist, while it is negatively correlated with the droplet size of the mist. Additionally, the fine water mist system exhibits a significant suppression effect on gas generation. The research findings offer theoretical insights into the use of fine water mist fire extinguishing systems for controlling the generation of fire-induced gases and provide theoretical support for the safe design of energy storage stations.","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"19 1","pages":""},"PeriodicalIF":6.9000,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Process Safety and Environmental Protection","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1016/j.psep.2025.01.019","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Lithium-ion battery energy storage technology has emerged as the primary technological route for the development of new energy storage systems. However, frequent fire incidents in lithium-ion energy storage stations pose significant safety hazards. To analyze the patterns of gas generation of Lithium-ion batteries packs fire in an energy-storage cabin and to investigate the suppression effects of fine water mist fire extinguishing systems on this gas generation, the FDS software is used to model fires involving lithium battery cells and packs at a 1:1 scale in this study. The gas generation patterns under different water mist spraying parameters during the thermal runaway of lithium-ion batteries in an energy-storage cabin is investigated. The results indicated that as thermal runaway intensified and the fire spread, the production rates of CO and H₂ gradually increased, ultimately reaching gas fractions of 3.7 % and a concentration of 23 ppm, respectively. The suppression efficacy on gas generation is positively correlated with the spray flow rate, spray cone angle, and nozzle flow rate of the fine water mist, while it is negatively correlated with the droplet size of the mist. Additionally, the fine water mist system exhibits a significant suppression effect on gas generation. The research findings offer theoretical insights into the use of fine water mist fire extinguishing systems for controlling the generation of fire-induced gases and provide theoretical support for the safe design of energy storage stations.
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.
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