Single phase pressure drop and two-phase distribution in an offset strip fin compact heat exchanger
Identifieur interne : 000A02 ( Main/Merge ); précédent : 000A01; suivant : 000A03Single phase pressure drop and two-phase distribution in an offset strip fin compact heat exchanger
Auteurs : Selma Ben Saad [France] ; Patrice Clemen [France] ; Jean-François Fourmigue [France] ; Caroline Gentric [France] ; Jean-Pierre Leclerc [France]Source :
- Applied thermal engineering [ 1359-4311 ] ; 2012.
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- Pascal (Inist)
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- topic : Simulation.
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Abstract
Experiments have been conducted in a compact heat exchanger with two-phase inlet conditions and vertical upflow in order to study the flow behavior. The test section consists of an offset strip fin heat exchanger with a rectangular cross-section (dimensions: 1 m x 1 m x 7.13 mm). The distributor was designed to optimize two-phase flow distribution. In a preliminary step, pressure drop of single phase flow in offset strip fins is needed to assess the quality of the distribution in the single phase case. For that, pressure drop of single phase flow has been measured in the experimental loop. Pressure drop has also been analysed numerically via CFD simulations. For low Reynolds numbers, numerical results show good agreement with experimental measurements. In a second step, the two-phase flow distribution at the outlet was characterized using air and water as working fluids and for different operating conditions. This characterization consists of the measurement of gas and liquid flow rates in different zones evenly distributed at the outlet. We observed that high air flow rates led to a more homogenous distribution.
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Génie des Procédés (LRGP), UPR 3349, CNRS-ENSIC-INPL, 1, rue Grandville BP 20451</s1><s2>54001 Nancy</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region><settlement type="city">Nancy</settlement></placeName></affiliation></author><author><name sortKey="Leclerc, Jean Pierre" sort="Leclerc, Jean Pierre" uniqKey="Leclerc J" first="Jean-Pierre" last="Leclerc">Jean-Pierre Leclerc</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire Réactions et Génie des Procédés (LRGP), UPR 3349, CNRS-ENSIC-INPL, 1, rue Grandville BP 20451</s1><s2>54001 Nancy</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region><settlement type="city">Nancy</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">Applied thermal engineering</title><title level="j" type="abbreviated">Appl. therm. eng.</title><idno type="ISSN">1359-4311</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Applied thermal engineering</title><title level="j" type="abbreviated">Appl. therm. eng.</title><idno type="ISSN">1359-4311</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Computational fluid dynamics</term><term>Cross section (collision)</term><term>Dimension</term><term>Fin</term><term>Heat exchanger</term><term>Liquid flow</term><term>Measurement</term><term>Numerical analysis</term><term>Operating conditions</term><term>Simulation</term><term>Single phase flow</term><term>Two phase flow</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Ailette</term><term>Echangeur chaleur</term><term>Section efficace</term><term>Dimension</term><term>Ecoulement diphasique</term><term>Ecoulement monophasique</term><term>Analyse numérique</term><term>Mécanique fluide numérique</term><term>Simulation</term><term>Mesure</term><term>Condition opératoire</term><term>Ecoulement liquide</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Simulation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Experiments have been conducted in a compact heat exchanger with two-phase inlet conditions and vertical upflow in order to study the flow behavior. The test section consists of an offset strip fin heat exchanger with a rectangular cross-section (dimensions: 1 m x 1 m x 7.13 mm). The distributor was designed to optimize two-phase flow distribution. In a preliminary step, pressure drop of single phase flow in offset strip fins is needed to assess the quality of the distribution in the single phase case. For that, pressure drop of single phase flow has been measured in the experimental loop. Pressure drop has also been analysed numerically via CFD simulations. For low Reynolds numbers, numerical results show good agreement with experimental measurements. In a second step, the two-phase flow distribution at the outlet was characterized using air and water as working fluids and for different operating conditions. This characterization consists of the measurement of gas and liquid flow rates in different zones evenly distributed at the outlet. We observed that high air flow rates led to a more homogenous distribution.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Auvergne-Rhône-Alpes</li><li>Grand Est</li><li>Lorraine (région)</li><li>Rhône-Alpes</li></region><settlement><li>Grenoble</li><li>Nancy</li></settlement></list><tree><country name="France"><region name="Auvergne-Rhône-Alpes"><name sortKey="Saad, Selma Ben" sort="Saad, Selma Ben" uniqKey="Saad S" first="Selma Ben" last="Saad">Selma Ben Saad</name></region><name sortKey="Clemen, Patrice" sort="Clemen, Patrice" uniqKey="Clemen P" first="Patrice" last="Clemen">Patrice Clemen</name><name sortKey="Fourmigue, Jean Francois" sort="Fourmigue, Jean Francois" uniqKey="Fourmigue J" first="Jean-François" last="Fourmigue">Jean-François Fourmigue</name><name sortKey="Gentric, Caroline" sort="Gentric, Caroline" uniqKey="Gentric C" first="Caroline" last="Gentric">Caroline Gentric</name><name sortKey="Leclerc, Jean Pierre" sort="Leclerc, Jean Pierre" uniqKey="Leclerc J" first="Jean-Pierre" last="Leclerc">Jean-Pierre Leclerc</name><name sortKey="Saad, Selma Ben" sort="Saad, Selma Ben" uniqKey="Saad S" first="Selma Ben" last="Saad">Selma Ben Saad</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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