Numerical study of evaporation by mixed convection of a binary liquid film
This paper deals with a numerical analysis of the evaporation of binary liquid film. The film is falling down on one plate of a vertical channel under mixed convection channel. The first plate of a vertical channel is externally submitted to a uniform heated flux q 1 while the second one ( y = d) is...
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| Veröffentlicht in: | Energy (Oxford) 2011-05, Vol.36 (5), p.2316-2327 |
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| creator | Nasr, Abdelaziz Debbissi Hfaiedh, Chokri Ben Nasrallah, Sassi |
| description | This paper deals with a numerical analysis of the evaporation of binary liquid film. The film is falling down on one plate of a vertical channel under mixed convection channel. The first plate of a vertical channel is externally submitted to a uniform heated flux
q
1 while the second one (
y
=
d) is dry and isothermal. The liquid mixture consists of water (the more volatile component) and ethylene glycol while the gas mixture has three components: dry air, water vapour and ethylene-glycol vapour. The results concern the effects of the inlet parameters in the gas and in the liquid film on the interfacial pressure, temperature and concentration profiles. The evolutions of the heat fluxes and of the water and mixture evaporation rates have been analysed. Results obtained show, in particular, that it is possible to increase the accumulated evaporation rate of water and of the liquid mixture when the inlet liquid concentration of ethylene glycol (the less volatile component) is less than 40%. This result has been explained by the fact that an increase of the inlet liquid concentration of ethylene glycol has two antagonistic effects on the accumulated evaporation rates of water and of liquid mixture.
► The changing behaviours evolution of water and mixture evaporation rates is due to the existence of two antagonistic effects. ► The changing behaviours evolution of the heat transferred by latent mode is due to the existence of two antagonistic effects. ► It is possible to increase the water evaporation rate when the inlet film composition is less than 40%. ► It is possible to increase the mixture evaporation rate when the inlet film composition is less than 40%. ► The heat and mass transfer strongly depends on the inlet liquid concentration of ethylene glycol. |
| doi_str_mv | 10.1016/j.energy.2011.02.039 |
| format | Article |
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q
1 while the second one (
y
=
d) is dry and isothermal. The liquid mixture consists of water (the more volatile component) and ethylene glycol while the gas mixture has three components: dry air, water vapour and ethylene-glycol vapour. The results concern the effects of the inlet parameters in the gas and in the liquid film on the interfacial pressure, temperature and concentration profiles. The evolutions of the heat fluxes and of the water and mixture evaporation rates have been analysed. Results obtained show, in particular, that it is possible to increase the accumulated evaporation rate of water and of the liquid mixture when the inlet liquid concentration of ethylene glycol (the less volatile component) is less than 40%. This result has been explained by the fact that an increase of the inlet liquid concentration of ethylene glycol has two antagonistic effects on the accumulated evaporation rates of water and of liquid mixture.
► The changing behaviours evolution of water and mixture evaporation rates is due to the existence of two antagonistic effects. ► The changing behaviours evolution of the heat transferred by latent mode is due to the existence of two antagonistic effects. ► It is possible to increase the water evaporation rate when the inlet film composition is less than 40%. ► It is possible to increase the mixture evaporation rate when the inlet film composition is less than 40%. ► The heat and mass transfer strongly depends on the inlet liquid concentration of ethylene glycol.</description><identifier>ISSN: 0360-5442</identifier><identifier>DOI: 10.1016/j.energy.2011.02.039</identifier><identifier>CODEN: ENEYDS</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>air ; Binary liquid film ; Binary mixture ; Channels ; Convection ; Ethylene glycol ; Evaporation ; Evaporation rate ; Exact sciences and technology ; Fluid dynamics ; Fundamental areas of phenomenology (including applications) ; Heat and mass transfer ; heat transfer ; Inlets ; Laminar flow ; Liquid films ; Liquids ; Mixed convection ; Physics ; temperature ; Turbulent flows, convection, and heat transfer ; Vapour ; water vapor</subject><ispartof>Energy (Oxford), 2011-05, Vol.36 (5), p.2316-2327</ispartof><rights>2011 Elsevier Ltd</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c425t-20a1f97fbcfe1b23393b95606b80c156a36b1da5b978bd31b46ef0444ab8beeb3</citedby><cites>FETCH-LOGICAL-c425t-20a1f97fbcfe1b23393b95606b80c156a36b1da5b978bd31b46ef0444ab8beeb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.energy.2011.02.039$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24213092$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Nasr, Abdelaziz</creatorcontrib><creatorcontrib>Debbissi Hfaiedh, Chokri</creatorcontrib><creatorcontrib>Ben Nasrallah, Sassi</creatorcontrib><title>Numerical study of evaporation by mixed convection of a binary liquid film</title><title>Energy (Oxford)</title><description>This paper deals with a numerical analysis of the evaporation of binary liquid film. The film is falling down on one plate of a vertical channel under mixed convection channel. The first plate of a vertical channel is externally submitted to a uniform heated flux
q
1 while the second one (
y
=
d) is dry and isothermal. The liquid mixture consists of water (the more volatile component) and ethylene glycol while the gas mixture has three components: dry air, water vapour and ethylene-glycol vapour. The results concern the effects of the inlet parameters in the gas and in the liquid film on the interfacial pressure, temperature and concentration profiles. The evolutions of the heat fluxes and of the water and mixture evaporation rates have been analysed. Results obtained show, in particular, that it is possible to increase the accumulated evaporation rate of water and of the liquid mixture when the inlet liquid concentration of ethylene glycol (the less volatile component) is less than 40%. This result has been explained by the fact that an increase of the inlet liquid concentration of ethylene glycol has two antagonistic effects on the accumulated evaporation rates of water and of liquid mixture.
► The changing behaviours evolution of water and mixture evaporation rates is due to the existence of two antagonistic effects. ► The changing behaviours evolution of the heat transferred by latent mode is due to the existence of two antagonistic effects. ► It is possible to increase the water evaporation rate when the inlet film composition is less than 40%. ► It is possible to increase the mixture evaporation rate when the inlet film composition is less than 40%. ► The heat and mass transfer strongly depends on the inlet liquid concentration of ethylene glycol.</description><subject>air</subject><subject>Binary liquid film</subject><subject>Binary mixture</subject><subject>Channels</subject><subject>Convection</subject><subject>Ethylene glycol</subject><subject>Evaporation</subject><subject>Evaporation rate</subject><subject>Exact sciences and technology</subject><subject>Fluid dynamics</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Heat and mass transfer</subject><subject>heat transfer</subject><subject>Inlets</subject><subject>Laminar flow</subject><subject>Liquid films</subject><subject>Liquids</subject><subject>Mixed convection</subject><subject>Physics</subject><subject>temperature</subject><subject>Turbulent flows, convection, and heat transfer</subject><subject>Vapour</subject><subject>water vapor</subject><issn>0360-5442</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kUtr3DAQgH1ooGnaf1CoLiW5rDt6WJYugRDSF6E9tDkLSR4FLba1kdZL999HqUOOOQ0M37y-aZqPFFoKVH7Ztjhjvj-2DChtgbXA9ZvmFLiETScEe9u8K2ULAJ3S-rT5-WuZMEdvR1L2y3AkKRA82F3Kdh_TTNyRTPEfDsSn-YD-f64ilrg423wkY3xY4kBCHKf3zUmwY8EPz_Gsuft68_f6--b297cf11e3Gy9Yt98wsDToPjgfkDrGueZOdxKkU-BpJy2Xjg62c7pXbuDUCYkBhBDWKYfo-Flzvvbd5fSwYNmbKRaP42hnTEsxqmeUKw2qkhevkrTve8pB6a6iYkV9TqVkDGaX41QvNBTMk1izNatY8yTWADNVbC37_DzBluowZDv7WF5qmairgGaV-7RywSZj73Nl7v7URrI-Qmql-0pcrgRWdYeI2RQfcfY4xFy9myHF11d5BDRTm5c</recordid><startdate>20110501</startdate><enddate>20110501</enddate><creator>Nasr, Abdelaziz</creator><creator>Debbissi Hfaiedh, Chokri</creator><creator>Ben Nasrallah, Sassi</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SU</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope><scope>7ST</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>SOI</scope></search><sort><creationdate>20110501</creationdate><title>Numerical study of evaporation by mixed convection of a binary liquid film</title><author>Nasr, Abdelaziz ; Debbissi Hfaiedh, Chokri ; Ben Nasrallah, Sassi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c425t-20a1f97fbcfe1b23393b95606b80c156a36b1da5b978bd31b46ef0444ab8beeb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>air</topic><topic>Binary liquid film</topic><topic>Binary mixture</topic><topic>Channels</topic><topic>Convection</topic><topic>Ethylene glycol</topic><topic>Evaporation</topic><topic>Evaporation rate</topic><topic>Exact sciences and technology</topic><topic>Fluid dynamics</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Heat and mass transfer</topic><topic>heat transfer</topic><topic>Inlets</topic><topic>Laminar flow</topic><topic>Liquid films</topic><topic>Liquids</topic><topic>Mixed convection</topic><topic>Physics</topic><topic>temperature</topic><topic>Turbulent flows, convection, and heat transfer</topic><topic>Vapour</topic><topic>water vapor</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nasr, Abdelaziz</creatorcontrib><creatorcontrib>Debbissi Hfaiedh, Chokri</creatorcontrib><creatorcontrib>Ben Nasrallah, Sassi</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><jtitle>Energy (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nasr, Abdelaziz</au><au>Debbissi Hfaiedh, Chokri</au><au>Ben Nasrallah, Sassi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical study of evaporation by mixed convection of a binary liquid film</atitle><jtitle>Energy (Oxford)</jtitle><date>2011-05-01</date><risdate>2011</risdate><volume>36</volume><issue>5</issue><spage>2316</spage><epage>2327</epage><pages>2316-2327</pages><issn>0360-5442</issn><coden>ENEYDS</coden><abstract>This paper deals with a numerical analysis of the evaporation of binary liquid film. The film is falling down on one plate of a vertical channel under mixed convection channel. The first plate of a vertical channel is externally submitted to a uniform heated flux
q
1 while the second one (
y
=
d) is dry and isothermal. The liquid mixture consists of water (the more volatile component) and ethylene glycol while the gas mixture has three components: dry air, water vapour and ethylene-glycol vapour. The results concern the effects of the inlet parameters in the gas and in the liquid film on the interfacial pressure, temperature and concentration profiles. The evolutions of the heat fluxes and of the water and mixture evaporation rates have been analysed. Results obtained show, in particular, that it is possible to increase the accumulated evaporation rate of water and of the liquid mixture when the inlet liquid concentration of ethylene glycol (the less volatile component) is less than 40%. This result has been explained by the fact that an increase of the inlet liquid concentration of ethylene glycol has two antagonistic effects on the accumulated evaporation rates of water and of liquid mixture.
► The changing behaviours evolution of water and mixture evaporation rates is due to the existence of two antagonistic effects. ► The changing behaviours evolution of the heat transferred by latent mode is due to the existence of two antagonistic effects. ► It is possible to increase the water evaporation rate when the inlet film composition is less than 40%. ► It is possible to increase the mixture evaporation rate when the inlet film composition is less than 40%. ► The heat and mass transfer strongly depends on the inlet liquid concentration of ethylene glycol.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.energy.2011.02.039</doi><tpages>12</tpages></addata></record> |
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| ispartof | Energy (Oxford), 2011-05, Vol.36 (5), p.2316-2327 |
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| subjects | air Binary liquid film Binary mixture Channels Convection Ethylene glycol Evaporation Evaporation rate Exact sciences and technology Fluid dynamics Fundamental areas of phenomenology (including applications) Heat and mass transfer heat transfer Inlets Laminar flow Liquid films Liquids Mixed convection Physics temperature Turbulent flows, convection, and heat transfer Vapour water vapor |
| title | Numerical study of evaporation by mixed convection of a binary liquid film |
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