Study on the Influence of Water Mist on Methane Explosion Characteristic Parameters in Variable-volume Space

Study on the Influence of Water Mist on Methane Explosion Characteristic Parameters in Variable-volume Space | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Study on the Influence of Water Mist on Methane Explosion Characteristic Parameters in Variable-volume Space Yang Xu, Yuanbing Li, Mian Li, Yulong Duan This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4539284/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract A transparent and variable volume pipe was used to investigate the influence of water mist on different development stages of methane explosion flame. A sliding device was installed to enable the adjustment of the pipe space volume during the experiments. The results demonstrate that water mist has varying effects on different flame development stages, leading to changes in flame development structure and mechanisms. When water mist is sprayed before the flame passes through the nozzle, it will cause a turbulent transformation of the flame, accelerate the flame propagation speed, and increase overpressure in the combustion zone. Specifically, when water mist acts on the tip of a finger flame, it promotes the explosion with a significant increase in overpressure and flame velocity, resulting in the maximum overpressure that is 90.48% higher compared to the without water mist condition. When the flame front has already passed through the nozzle and the water mist is sprayed, the water mist will significantly improve the efficiency of flame quenching and reduce the maximum overpressure in the unburned area. Compared with the absence of water mist, the overpressure in the unburned zone decreases by 21.91% and the flame extinction time decreases by 28.07%. Physical sciences/Energy science and technology Physical sciences/Engineering water mist methane explosion variable volume space flame development stage Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4539284","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":317992954,"identity":"a3bf2563-a157-438e-820d-99b527e4c2d7","order_by":0,"name":"Yang Xu","email":"","orcid":"","institution":"Chongqing Vocational Institute of Safety \u0026 Technology","correspondingAuthor":false,"prefix":"","firstName":"Yang","middleName":"","lastName":"Xu","suffix":""},{"id":317992955,"identity":"6f0a6280-cd0a-462c-b3c5-7a590e83fe5b","order_by":1,"name":"Yuanbing Li","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA2klEQVRIiWNgGAWjYBACfv7+7x8+VNjY8TMzHyBOi+SMA2aMM86kJUu2tyUQp8XgQIIZM2fbYcYNZ84YEOmyAwfSHjO2MTMb3Mj5eOMNg52cbgMBHYzNDceNC86x8UneyN1sOYch2djsAAEtzAwHG6RnlPEw893I3SbNw3AgcRshLWwMyQzSPGwSjA03cp4Rp4WHIY1NmqfNgHHCmTNsxGmRkDjDbDjjTAIokI0t5xgQ4Rf78z2MDz5U/AdF5cMbbyrs5AhqQbWSh9ioQdJCqo5RMApGwSgYEQAA559FPnLuRVMAAAAASUVORK5CYII=","orcid":"","institution":"Chongqing Vocational Institute of Safety \u0026 Technology","correspondingAuthor":true,"prefix":"","firstName":"Yuanbing","middleName":"","lastName":"Li","suffix":""},{"id":317992956,"identity":"1790d730-bf5d-430f-a2ee-b222cb072e91","order_by":2,"name":"Mian Li","email":"","orcid":"","institution":"Chongqing Vocational Institute of Safety \u0026 Technology","correspondingAuthor":false,"prefix":"","firstName":"Mian","middleName":"","lastName":"Li","suffix":""},{"id":317992957,"identity":"33554a59-830a-4560-b372-835067e5c133","order_by":3,"name":"Yulong Duan","email":"","orcid":"","institution":"Chongqing University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Yulong","middleName":"","lastName":"Duan","suffix":""}],"badges":[],"createdAt":"2024-06-06 10:21:10","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4539284/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4539284/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":77013464,"identity":"0bdfe5a4-3ddc-4b96-b8b9-54158b9d6c73","added_by":"auto","created_at":"2025-02-24 09:39:09","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":834577,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4539284/v1_covered_6b23feda-6dbe-4ac5-848f-f072cdff14d1.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Study on the Influence of Water Mist on Methane Explosion Characteristic Parameters in Variable-volume Space","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"water mist, methane explosion, variable volume space, flame development stage","lastPublishedDoi":"10.21203/rs.3.rs-4539284/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4539284/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eA transparent and variable volume pipe was used to investigate the influence of water mist on different development stages of methane explosion flame. A sliding device was installed to enable the adjustment of the pipe space volume during the experiments. The results demonstrate that water mist has varying effects on different flame development stages, leading to changes in flame development structure and mechanisms. When water mist is sprayed before the flame passes through the nozzle, it will cause a turbulent transformation of the flame, accelerate the flame propagation speed, and increase overpressure in the combustion zone. Specifically, when water mist acts on the tip of a finger flame, it promotes the explosion with a significant increase in overpressure and flame velocity, resulting in the maximum overpressure that is 90.48% higher compared to the without water mist condition. When the flame front has already passed through the nozzle and the water mist is sprayed, the water mist will significantly improve the efficiency of flame quenching and reduce the maximum overpressure in the unburned area. Compared with the absence of water mist, the overpressure in the unburned zone decreases by 21.91% and the flame extinction time decreases by 28.07%.\u003c/p\u003e","manuscriptTitle":"Study on the Influence of Water Mist on Methane Explosion Characteristic Parameters in Variable-volume Space","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-06-26 12:48:21","doi":"10.21203/rs.3.rs-4539284/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"32681c91-dfc3-4a87-b23b-c6dcb85bbdff","owner":[],"postedDate":"June 26th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":33620706,"name":"Physical sciences/Energy science and technology"},{"id":33620707,"name":"Physical sciences/Engineering"}],"tags":[],"updatedAt":"2025-02-24T09:38:28+00:00","versionOfRecord":[],"versionCreatedAt":"2024-06-26 12:48:21","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4539284","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4539284","identity":"rs-4539284","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}