Assessment of Pollutant Emissions and Combustion Efficiency due to Inserting Aerodynamic Solid Body in High-Temperature Flame Regions

Assessment of Pollutant Emissions and Combustion Efficiency due to Inserting Aerodynamic Solid Body in High-Temperature Flame Regions | 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 Research Article Assessment of Pollutant Emissions and Combustion Efficiency due to Inserting Aerodynamic Solid Body in High-Temperature Flame Regions Anvar Ahmadkhah This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5912848/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 This study evaluates a method of using a solid body with a special aerodynamic shape to redistribute the burner's peak temperature region in the flame. This method extends the low-temperature range and suppresses thermal nitric oxide formation by numerical simulation. The model used for this purpose is a 7-fin fan blade with a bluff body for generating the wake region downstream of the cylindrical combustion chamber. The results are validated using the static temperature reported in the published paper for the burner without inserting a solid body in the flame region. There was a good agreement between experimental data and those calculated by applying the model for industrial application. The results cover the fin blades’ axial distance and fins' axial length parameters in the wake region. Also, the right fins’ axial distance and axial length in the downstream combustion flow were calculated by extracting the maximum axial length of the wake region. The burner's efficiency improved by 2.5% when installing a solid body burner. Moreover, NOx emission was investigated for 130 cases of numerical models related to the fins' axial length and axial distance parameters. The results indicated a decrease of 33.6% in NOx parts per million value, which was calculated for the selected inserting solid body burner in the flame region. Numerical Simulation In-flame fin insertion NOx reduction Combustion Burner 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-5912848","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":409075962,"identity":"99515977-6915-4758-bdcf-c758bef98413","order_by":0,"name":"Anvar Ahmadkhah","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABA0lEQVRIiWNgGAWjYBCDBCA2ZmZgOCAH4h14QIoWY7CWBFK0JDbAuLgA/+wew88VDHZ5uu2HNxsX1NxJnx92+CHQFjs53QbsWiTunDGWPMOQXGx2Jq04ecaxZ7kbb6cZALUkG5sdwGHNjbQEyQYG5sRtB3KMD/OwHc7dODsBpOUAUAS7Dvkback/GxjqE7edfwPU8u9wuuHs9A94tRjcSD4GtOVw4rYbOcbJvG2HE+Slc/DbYgjUYtlgcByo5VmxMW/fYcMN0jkFBxIMcPtF7kZi882Gimqgw5I3S/N8OywvPzt984cPFXZyOL0PcR4y+wC6CEEg30CK6lEwCkbBKBgJAAAwEmkg7jzhzgAAAABJRU5ErkJggg==","orcid":"","institution":"Iran University of Science and Technology","correspondingAuthor":true,"prefix":"","firstName":"Anvar","middleName":"","lastName":"Ahmadkhah","suffix":""}],"badges":[],"createdAt":"2025-01-27 14:08:25","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5912848/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5912848/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":78910520,"identity":"f8529648-0af6-42b6-b521-e47ad36f166d","added_by":"auto","created_at":"2025-03-20 16:31:44","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":2010855,"visible":true,"origin":"","legend":"","description":"","filename":"13926finalbnew3.pdf","url":"https://assets-eu.researchsquare.com/files/rs-5912848/v1_covered_64f3bd7d-5e3b-4d11-96ce-a49ee54f57e5.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"\u003cp\u003eAssessment of Pollutant Emissions and Combustion Efficiency due to Inserting Aerodynamic Solid Body in High-Temperature Flame Regions\u003c/p\u003e","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":"Numerical Simulation, In-flame fin insertion, NOx reduction, Combustion, Burner","lastPublishedDoi":"10.21203/rs.3.rs-5912848/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5912848/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThis study evaluates a method of using a solid body with a special aerodynamic shape to redistribute the burner's peak temperature region in the flame. 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