Numerical investigation of heat transfer enhancement in a fin and tube heat exchanger using vortex generators
In presented work, numerical analysis of heat transfer and pressure drop using vortex generators in fin and flat tube heat exchanger has been presented. Conjugate heat transfer 3D numerical model has been developed and successfully carried out. Rectangular winglets were set in pairs, with downstream...
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| Veröffentlicht in: | International journal of heat and mass transfer 2014-11, Vol.78, p.662-669 |
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| container_title | International journal of heat and mass transfer |
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| creator | Delač, Boris Trp, Anica Lenić, Kristian |
| description | In presented work, numerical analysis of heat transfer and pressure drop using vortex generators in fin and flat tube heat exchanger has been presented. Conjugate heat transfer 3D numerical model has been developed and successfully carried out. Rectangular winglets were set in pairs, with downstream orientation. The effects of impact angles of 5°, 10° and 20° as well as winglet height were examined through Nu number and j/f factor. Reynolds number is ranged from 350 to 2200. The numerical results showed that in the range of the present study, the variation of these parameters can result in the increase of heat transfer but with a penalty of pressure drop. Pressure drop increases for larger impact angles and with winglet height. Optimum heat transfer without significant pressure drop increase gives the vortex generator geometry of 0.64×1.92mm (i.e. winglet height equals 2/3 fin spacing) with impact angle 10°. |
| doi_str_mv | 10.1016/j.ijheatmasstransfer.2014.07.027 |
| format | Article |
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Conjugate heat transfer 3D numerical model has been developed and successfully carried out. Rectangular winglets were set in pairs, with downstream orientation. The effects of impact angles of 5°, 10° and 20° as well as winglet height were examined through Nu number and j/f factor. Reynolds number is ranged from 350 to 2200. The numerical results showed that in the range of the present study, the variation of these parameters can result in the increase of heat transfer but with a penalty of pressure drop. Pressure drop increases for larger impact angles and with winglet height. 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Optimum heat transfer without significant pressure drop increase gives the vortex generator geometry of 0.64×1.92mm (i.e. winglet height equals 2/3 fin spacing) with impact angle 10°.</description><subject>Conjugates</subject><subject>Heat exchanger</subject><subject>Heat transfer</subject><subject>Mathematical models</subject><subject>Pressure drop</subject><subject>Three dimensional models</subject><subject>Tube heat exchangers</subject><subject>Vortex generator</subject><subject>Vortex generators</subject><subject>Winglets</subject><issn>0017-9310</issn><issn>1879-2189</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkE1v3CAQQFHVSt2m-Q8c92JnwGDsW6uozYei5NKeEYuHDas13gJeJf8-WG5OvfQCQvP0xDxCtgxqBqy9OtT-8IwmjyalHE1IDmPNgYkaVA1cfSAb1qm-4qzrP5INAFNV3zD4TL6kdFieINoNGR_nEaO35kh9OGPKfm-ynwKdHF309N1NMTybYHHEkAtKDXXLGQaa5x2uLL7YwuwLPCcf9vQ8xYwvdI8Bo8lTTF_JJ2eOCS__3hfk988fv65vq4enm7vr7w-VbZTMleVt-V8z9B2IxnJ0DPkgsN9JuZPg-sFB2wpolXTc8W4HvWmEbKQTUgoFprkg29V7itOfuWylR58sHo8m4DQnzVrBuQLWNQX9tqI2TilFdPoU_Wjiq2agl9L6oP8trZfSGpQupYviflVgWensyzRZj6XV4CParIfJ_7_sDX4plVc</recordid><startdate>20141101</startdate><enddate>20141101</enddate><creator>Delač, Boris</creator><creator>Trp, Anica</creator><creator>Lenić, Kristian</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20141101</creationdate><title>Numerical investigation of heat transfer enhancement in a fin and tube heat exchanger using vortex generators</title><author>Delač, Boris ; Trp, Anica ; Lenić, Kristian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c375t-c260173d98043c2ef1e2d4e9b55b50f9df06640675f2f28b09a34535f455470a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Conjugates</topic><topic>Heat exchanger</topic><topic>Heat transfer</topic><topic>Mathematical models</topic><topic>Pressure drop</topic><topic>Three dimensional models</topic><topic>Tube heat exchangers</topic><topic>Vortex generator</topic><topic>Vortex generators</topic><topic>Winglets</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Delač, Boris</creatorcontrib><creatorcontrib>Trp, Anica</creatorcontrib><creatorcontrib>Lenić, Kristian</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>International journal of heat and mass transfer</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Delač, Boris</au><au>Trp, Anica</au><au>Lenić, Kristian</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical investigation of heat transfer enhancement in a fin and tube heat exchanger using vortex generators</atitle><jtitle>International journal of heat and mass transfer</jtitle><date>2014-11-01</date><risdate>2014</risdate><volume>78</volume><spage>662</spage><epage>669</epage><pages>662-669</pages><issn>0017-9310</issn><eissn>1879-2189</eissn><abstract>In presented work, numerical analysis of heat transfer and pressure drop using vortex generators in fin and flat tube heat exchanger has been presented. 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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Conjugates Heat exchanger Heat transfer Mathematical models Pressure drop Three dimensional models Tube heat exchangers Vortex generator Vortex generators Winglets |
| title | Numerical investigation of heat transfer enhancement in a fin and tube heat exchanger using vortex generators |
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