Effect of Air Injection Technique on the Emission Characteristics of a CI Engine During Transient Operation

Effect of Air Injection Technique on the Emission Characteristics of a CI Engine During Transient Operation | 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 Effect of Air Injection Technique on the Emission Characteristics of a CI Engine During Transient Operation Syed Mohammad Saad, Asiya Rummana This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4627323/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 3 You are reading this latest preprint version Abstract The performance of turbocharged diesel engine deteriorates during transient operating conditions. Air injection is an effective technique in improving the transient response of the engine. However, the technique is not evaluated for exhaust emissions. To meet the stringent emission regulations, it is important to improve the emission performance of the diesel engine. Present study deals with the effect of air injection technique on exhaust emissions (CO, HC and NOx) under speed and load transients. Optimization of injection pressure based on orifice diameter is performed to ensure that the application of the technology comply with Euro VI standard. The results of the simulation were evaluated for Euro VI standard and 3 bar air injection at 10 mm orifice diameter was found to be the optimum injection pressure for speed transients which brings slight reduction in CO and HC emissions and significant reduction in NOxemissions. For load transients, Emissions werefound to be below Euro VI standard for all the injection pressures and orifice diameters.Quantification of emissions were done and 1.2 bar injection pressure at 10 mm orifice diameter was found to reduce all the three emissions as compared to no air injection. Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editor assigned by journal 01 Jul, 2024 Submission checks completed at journal 27 Jun, 2024 First submitted to journal 24 Jun, 2024 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-4627323","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":321445889,"identity":"38117af4-9b7d-42b6-b703-318755f791c7","order_by":0,"name":"Syed Mohammad Saad","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABB0lEQVRIiWNgGAWjYJACCSBOALN4KqBCPMRrOQPmkKKFt40ILfIzkg/eYMyxyeOfdjrxw9t5h+v4+w8wPnjbxiCn24Bdi8GNtGQLxm1pxRK3czdLzt12WELiRgKz4dw2BmOzAzi0SOSYSTBuO5zYcDt3gzQvUAvDDQY2aaALE7fh0CI/I/8bWMt8oC2/eecclpA/f4D9Nz4tDDdy2MBaNtzO3SbN23BYwuBAAhszPi0GZ54ZWyRuS0vcCNRiOedYuuTGG4nNknPOSeD0i3x78sMbH7fZJM4DOuzGmxprfrnzhw9+eFNmI4dLC4NAAixS4ICxgYEBGj9YAT8us0bBKBgFo2AUwAAADalhwYjs+4AAAAAASUVORK5CYII=","orcid":"","institution":"University of Technology and Applied Sciences - Ibra, Ibra","correspondingAuthor":true,"prefix":"","firstName":"Syed","middleName":"Mohammad","lastName":"Saad","suffix":""},{"id":321445890,"identity":"ff05e90a-8e6f-46c8-9671-d507de41841a","order_by":1,"name":"Asiya Rummana","email":"","orcid":"","institution":"University of Huddersfield, Huddersfield","correspondingAuthor":false,"prefix":"","firstName":"Asiya","middleName":"","lastName":"Rummana","suffix":""}],"badges":[],"createdAt":"2024-06-24 04:14:09","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4627323/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4627323/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":60675635,"identity":"27f761d4-e8dc-4db1-b72b-ee8fbc99c895","added_by":"auto","created_at":"2024-07-19 11:02:51","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":387236,"visible":true,"origin":"","legend":"","description":"","filename":"Emissionpaper2.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4627323/v1_covered_e99fcf10-ae6c-4554-9929-a5e9eb66aae2.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Effect of Air Injection Technique on the Emission Characteristics of a CI Engine During Transient Operation","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"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":"emission-control-science-and-technology","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"ecst","sideBox":"Learn more about [Emission Control Science and Technology](http://link.springer.com/journal/40825)","snPcode":"40825","submissionUrl":"https://submission.nature.com/new-submission/40825/3","title":"Emission Control Science and Technology","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"","lastPublishedDoi":"10.21203/rs.3.rs-4627323/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4627323/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"The performance of turbocharged diesel engine deteriorates during transient operating conditions. 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