Study on flow and heat transfer characteristics of micro grooved ultra-thin plate heat pipe

Study on flow and heat transfer characteristics of micro grooved ultra-thin plate heat pipe | 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 Study on flow and heat transfer characteristics of micro grooved ultra-thin plate heat pipe Huashan Su, Hong CHEN, Kui Chen, Gang Wang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4423128/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 Ultra-thin flat heat pipe is an effective means to solve the heat dissipation problem of thin electronic equipment due to its strong thermal conductivity and high stability in narrow space. In this paper, the VOF gas-liquid two-phase flow model of CFD software is used to numerically simulate the flow and heat transfer characteristics inside the micro-grooved ultra-thin flat heat pipe. The heat transfer performance test platform of the heat pipe is built, and the performance of the heat pipe is tested by considering different filling rates and different heating powers. The results show that the phase transition first occurs on the side of the heating surface of the evaporation section. The vapor on the wall of the condensation section condenses and forms a liquid film. The non-channel liquid will gather in the channel under the capillary force of the micro-groove and flow to the evaporation section. The 35% filling rate is the best filling rate of the micro-grooved ultra-thin flat heat pipe. At this time, the heat transfer efficiency is higher, which is consistent with the simulation results, and provides a valuable reference for the development and design of the ultra-thin flat heat pipe. Ultra-thin flat plate heat pipe liquid filling rate flow heat transfer 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. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-4423128","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":302812658,"identity":"0a1da65c-2505-4ff6-9dee-0d14cb39fc1c","order_by":0,"name":"Huashan Su","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA6klEQVRIiWNgGAWjYFACHhBxgIGBvQEqcIBoLTwHGBtI1CKRQKQW+Rm5xyR+/Lkjby75+PnDr20Mcnw3Ehg/F+DRYnAjL02yt+2Z4c7ZaYbNsm0MxpI3EpilZ+DTIpFjJsHbcJhxw+0cxmbJNobEDTcS2Jh58Dosx0zyz5/D9htungFrqSeoheFGjpk0D9thoOE8jI0f2xgSDAhpMTjzxthatu1w8oYzaYazGc5JGM4887BZGq/D2nMMb775c9h2w/HDDz7+KLOR5zuefPAzXochA6B7JIAUNH6IAow/iFc7CkbBKBgFIwgAAKDWUbA2Z2kRAAAAAElFTkSuQmCC","orcid":"","institution":"China Three Gorges University","correspondingAuthor":true,"prefix":"","firstName":"Huashan","middleName":"","lastName":"Su","suffix":""},{"id":302812659,"identity":"5f173159-c80f-4901-8f46-c10603eb95e2","order_by":1,"name":"Hong CHEN","email":"","orcid":"","institution":"China Three Gorges University","correspondingAuthor":false,"prefix":"","firstName":"Hong","middleName":"","lastName":"CHEN","suffix":""},{"id":302812660,"identity":"e744c17e-b8e8-4df3-ae2d-a79b7d6162fd","order_by":2,"name":"Kui Chen","email":"","orcid":"","institution":"China Three Gorges University","correspondingAuthor":false,"prefix":"","firstName":"Kui","middleName":"","lastName":"Chen","suffix":""},{"id":302812661,"identity":"c94e58c9-310d-400e-b0f4-8e206ae7338d","order_by":3,"name":"Gang Wang","email":"","orcid":"","institution":"China Three Gorges University","correspondingAuthor":false,"prefix":"","firstName":"Gang","middleName":"","lastName":"Wang","suffix":""}],"badges":[],"createdAt":"2024-05-15 06:54:52","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4423128/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4423128/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":59407732,"identity":"121ceea3-c12c-415a-9a90-477d5a046df7","added_by":"auto","created_at":"2024-07-01 11:47:43","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":962813,"visible":true,"origin":"","legend":"","description":"","filename":"Studyonflowandheattransfercharacteristicsofmicrogroovedultra.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4423128/v1_covered_7e8673c4-d40d-4c33-b677-321b1d603f0e.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Study on flow and heat transfer characteristics of micro grooved ultra-thin plate heat pipe","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":"Ultra-thin flat plate heat pipe, liquid filling rate, flow heat transfer","lastPublishedDoi":"10.21203/rs.3.rs-4423128/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4423128/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eUltra-thin flat heat pipe is an effective means to solve the heat dissipation problem of thin electronic equipment due to its strong thermal conductivity and high stability in narrow space. In this paper, the VOF gas-liquid two-phase flow model of CFD software is used to numerically simulate the flow and heat transfer characteristics inside the micro-grooved ultra-thin flat heat pipe. The heat transfer performance test platform of the heat pipe is built, and the performance of the heat pipe is tested by considering different filling rates and different heating powers. The results show that the phase transition first occurs on the side of the heating surface of the evaporation section. The vapor on the wall of the condensation section condenses and forms a liquid film. The non-channel liquid will gather in the channel under the capillary force of the micro-groove and flow to the evaporation section. The 35% filling rate is the best filling rate of the micro-grooved ultra-thin flat heat pipe. At this time, the heat transfer efficiency is higher, which is consistent with the simulation results, and provides a valuable reference for the development and design of the ultra-thin flat heat pipe.\u003c/p\u003e","manuscriptTitle":"Study on flow and heat transfer characteristics of micro grooved ultra-thin plate heat pipe","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-05-24 03:57:18","doi":"10.21203/rs.3.rs-4423128/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":"5d6966bb-c4ec-448d-846d-f342330999c8","owner":[],"postedDate":"May 24th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2024-07-01T11:39:35+00:00","versionOfRecord":[],"versionCreatedAt":"2024-05-24 03:57:18","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4423128","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4423128","identity":"rs-4423128","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}