Performance Analysis of an Evacuated Tube Collector with Wavy Tape and Phase Change Material for Hot Water Production

Performance Analysis of an Evacuated Tube Collector with Wavy Tape and Phase Change Material for Hot Water Production | 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 Performance Analysis of an Evacuated Tube Collector with Wavy Tape and Phase Change Material for Hot Water Production Punam Kumar Agade This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6249984/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 the performance of four different cases of evacuated tube solar water heater (ETSC). Conventional ETSC, ETSC with wavy tape, ETSC with PCM, and lastly ETSC with PCM + wavy tape. The novelty of this research lies in exploring the integration of binary eutectic PCM and combined effects of PCM and wavy tape in the operation of ETSC. The findings of the present study reveals that the highest hourly efficiency obtained 71.75% for the ETSC with (PCM + WT), followed by 67.63%, 65.5%, and 60.61% for the ETSC with WT, PCM, and conventional, respectively while the daily average efficiency of the discussed cases is 35.17, 39.90, 40.32 and 45.92% respectively. Similarly, the exergy efficiency follows the same trend as energy efficiency and reveals that the ETSC with (WT + PCM), exhibits an average exergy efficiency of 6.11%, which is higher than conventional ETSC (3.48%), ETSC with plain WT (4.43%), and ETSC with PCM (5.09%). The environmental analysis based on energetic and exergetic approach is also carried out and the results reveals that ETSC with PCM + WT mitigates more CO 2 /ton compared to the other cases. Evacuated tube Water PCM Wavy tape Energy Exergy Full Text Additional Declarations The authors declare no competing interests. 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-6249984","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":430295565,"identity":"d9fcfe22-f379-413c-a092-3f5ccb441a50","order_by":0,"name":"Punam Kumar Agade","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABDUlEQVRIiWNgGAWjYJACCSjN+OBDhQ2IbjxArBZmwxln0kBaGojWwibN23YYzMKrhb9/8cMbHxjuJG5nP50gOePMebu17YeBttTYROO04cYzY8sZDM8Sd/bkbjD4UHE7eduZRKCWY2m5Dbj03DhgJs3DcDhxw4HcDYkzztxONjsA1MLYcBinFvkbx79J/wFpOf92w2HetnPJZucf4tdicL7HTJoBpOVG7sZm3rYDdmY3CNhieIOn2LLH4JnxhhtvNzPOOJOcYHYDaEsCHr/InT++8caPijuyG87nbv/xocLO3ux8+sMHH2pscHtfIgHkvANwfiJYZQIu5SDAD1aN0GKPT/EoGAWjYBSMTAAA+Etz4MtBx/MAAAAASUVORK5CYII=","orcid":"","institution":"Department of Mechanical Engineering, Madhyanchal Professional University, Bhopal, 462044, Madhya Pradesh, India","correspondingAuthor":true,"prefix":"","firstName":"Punam","middleName":"Kumar","lastName":"Agade","suffix":""}],"badges":[],"createdAt":"2025-03-18 06:37:57","currentVersionCode":1,"declarations":{"humanSubjects":false,"vertebrateSubjects":true,"conflictsOfInterestStatement":false,"humanSubjectEthicalGuidelines":false,"humanSubjectConsent":false,"humanSubjectClinicalTrial":false,"humanSubjectCaseReport":false,"vertebrateSubjectEthicalGuidelines":true},"doi":"10.21203/rs.3.rs-6249984/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-6249984/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":78820157,"identity":"d39a4e05-6708-4691-9cdc-4acad3c3c12b","added_by":"auto","created_at":"2025-03-19 11:26:40","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1161027,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-6249984/v1_covered_96a2731f-b0e6-4801-97dc-7cfb10dac9c1.pdf"}],"financialInterests":"The authors declare no competing interests.","formattedTitle":"\u003cp\u003e\u003cstrong\u003ePerformance Analysis of an Evacuated Tube Collector with Wavy Tape and Phase Change Material for Hot Water Production\u003c/strong\u003e\u003c/p\u003e","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":true,"highlight":"","institution":"Madhyanchal Professional University, Bhopal, 462044, Madhya Pradesh, India","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":"Evacuated tube, Water, PCM, Wavy tape, Energy, Exergy","lastPublishedDoi":"10.21203/rs.3.rs-6249984/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6249984/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThis study evaluates the performance of four different cases of evacuated tube solar water heater (ETSC). 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