Influence of the velocity ratio and rotational speed on the polymer based desiccant dehumidifier

Influence of the velocity ratio and rotational speed on the polymer based desiccant dehumidifier | 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 Influence of the velocity ratio and rotational speed on the polymer based desiccant dehumidifier Shiva Kumar, Sampath Suranjan Salins, S. V. Kota Reddy This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5863922/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 11 You are reading this latest preprint version Abstract Nowadays, it’s essential to reduce our reliance on conventional air conditioning units and switch to desiccant-based dehumidifiers and air conditioners. This shift promotes sustainability, protects the environment from harmful gas emissions, and minimizes energy consumption.The current work centres on developing a polymer-based dynamic desiccant dehumidifier system. This involves studying the velocity ratios between the dehumidifier and regenerator air at various rotational speeds. Four sets of velocity ratios range and four sets of rotational speeds are included in the matrix preparation. The results indicated that the system performed optimally with a velocity ratio range of 1 to 0.20, demonstrating improved temperature and humidity changes as well as dehumidification efficiency. In contrast, the highest velocity ratio range of 4 to 0.80 achieved the maximum rate of moisture removal, performance coefficient, and coefficient of mass transfer at an optimum rotational speed of 24 rpm. Beyond these ranges, performance declined significantly. This unit reached a maximum rate of moisture removal of 0.23 g/s, dehumidification efficiency of 83.72%, a coefficient of performance of 5.36, and a coefficient of mass transfer of 6.67 kg/m²-s. Velocity ratio dehumidifier polymer solid desiccant Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 21 May, 2025 Editor assigned by journal 20 May, 2025 Reviews received at journal 20 May, 2025 Reviewers agreed at journal 10 May, 2025 Reviews received at journal 08 May, 2025 Reviewers agreed at journal 08 May, 2025 Reviews received at journal 06 May, 2025 Reviewers agreed at journal 05 May, 2025 Reviewers invited by journal 05 May, 2025 Submission checks completed at journal 05 May, 2025 First submitted to journal 29 Apr, 2025 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-5863922","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":449953286,"identity":"de63caa5-599d-401d-a500-79c4982d97c2","order_by":0,"name":"Shiva Kumar","email":"","orcid":"","institution":"Manipal Academy of Higher Education","correspondingAuthor":false,"prefix":"","firstName":"Shiva","middleName":"","lastName":"Kumar","suffix":""},{"id":449953288,"identity":"7990c404-acc0-4115-b3e9-f4ae30f2e97d","order_by":1,"name":"Sampath Suranjan Salins","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABAUlEQVRIiWNgGAWjYPCCA3JgkoHBgrFBAswgBBIOGEO1SBCvJbEBwoJowQvk20+nPfj540762vazBw8X1EjIbrjd/PAAQ41NNC4tBmdytxv2JDzL3XYmL+HwjGMSxhvuHDM4wHAsLbcBlxaG3G0SPAmHc7cdyDE4zMMmkbjhRoLBAcaGwzi1yPe/3Sb5J+Fwutn5N0At/0Ba0j/g1cJwI3ebNNCWBLMbQFt420BacvDbYnDj7XZjmbTDhttuAG2Z2SdhPPPOmYIDCXj8It+fu+3hG5vD8mbnc4w/F3yzke273b75w4caG9wOY2Bgg7OY4awE3MpxaRkFo2AUjIJRgAQARZVs9Cd9Sn0AAAAASUVORK5CYII=","orcid":"","institution":"Manipal Academy of Higher Education","correspondingAuthor":true,"prefix":"","firstName":"Sampath","middleName":"Suranjan","lastName":"Salins","suffix":""},{"id":449953290,"identity":"c4d149a3-b098-4329-b2df-ffb336755244","order_by":2,"name":"S. V. Kota Reddy","email":"","orcid":"","institution":"VIT-AP University","correspondingAuthor":false,"prefix":"","firstName":"S.","middleName":"V. Kota","lastName":"Reddy","suffix":""}],"badges":[],"createdAt":"2025-01-20 08:23:21","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5863922/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5863922/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":81795474,"identity":"0eada6f7-fa1f-490c-a345-bddbab0b5e93","added_by":"auto","created_at":"2025-05-02 03:26:46","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1396016,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript30042025Clean.pdf","url":"https://assets-eu.researchsquare.com/files/rs-5863922/v1_covered_626e9878-70d9-4c43-8b1c-c70748090294.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Influence of the velocity ratio and rotational speed on the polymer based desiccant dehumidifier","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"discover-applied-sciences","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"Learn more about [Discover Applied Sciences](https://link.springer.com/journal/42452)","snPcode":"42452","submissionUrl":"https://submission.springernature.com/new-submission/42452/3","title":"Discover Applied Sciences","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Discover Series","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"Velocity ratio, dehumidifier, polymer, solid desiccant","lastPublishedDoi":"10.21203/rs.3.rs-5863922/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5863922/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eNowadays, it’s essential to reduce our reliance on conventional air conditioning units and switch to desiccant-based dehumidifiers and air conditioners. This shift promotes sustainability, protects the environment from harmful gas emissions, and minimizes energy consumption.The current work centres on developing a polymer-based dynamic desiccant dehumidifier system. This involves studying the velocity ratios between the dehumidifier and regenerator air at various rotational speeds. Four sets of velocity ratios range and four sets of rotational speeds are included in the matrix preparation. The results indicated that the system performed optimally with a velocity ratio range of 1 to 0.20, demonstrating improved temperature and humidity changes as well as dehumidification efficiency. In contrast, the highest velocity ratio range of 4 to 0.80 achieved the maximum rate of moisture removal, performance coefficient, and coefficient of mass transfer at an optimum rotational speed of 24 rpm. Beyond these ranges, performance declined significantly. This unit reached a maximum rate of moisture removal of 0.23 g/s, dehumidification efficiency of 83.72%, a coefficient of performance of 5.36, and a coefficient of mass transfer of 6.67 kg/m²-s.\u003c/p\u003e","manuscriptTitle":"Influence of the velocity ratio and rotational speed on the polymer based desiccant dehumidifier","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-05-02 03:18:36","doi":"10.21203/rs.3.rs-5863922/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2025-05-21T13:19:05+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2025-05-20T14:21:42+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-05-20T04:10:02+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"106413437183637139349793545799196429297","date":"2025-05-10T13:32:16+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-05-08T06:56:43+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"153902643393834582528945066542615248016","date":"2025-05-08T06:18:53+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-05-06T14:17:03+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"85637366163511598806690014540906637960","date":"2025-05-05T13:19:04+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2025-05-05T13:03:19+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2025-05-05T05:21:56+00:00","index":"","fulltext":""},{"type":"submitted","content":"Discover Applied Sciences","date":"2025-04-30T02:33:24+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"discover-applied-sciences","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"Learn more about [Discover Applied Sciences](https://link.springer.com/journal/42452)","snPcode":"42452","submissionUrl":"https://submission.springernature.com/new-submission/42452/3","title":"Discover Applied Sciences","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Discover Series","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"1acf404e-4cf0-4aea-9ddd-23edbcdefbb6","owner":[],"postedDate":"May 2nd, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[],"tags":[],"updatedAt":"2025-06-10T11:23:20+00:00","versionOfRecord":[],"versionCreatedAt":"2025-05-02 03:18:36","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-5863922","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-5863922","identity":"rs-5863922","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}