Modelling of a moving bed furnace for the production of uranium tetrafluoride Part 1: formulation of the model
Identifieur interne : 000310 ( PascalFrancis/Curation ); précédent : 000309; suivant : 000311Modelling of a moving bed furnace for the production of uranium tetrafluoride Part 1: formulation of the model
Auteurs : B. Dussoubs [France] ; J. Jourde [France] ; F. Patisson [France] ; J.-L. Houzelot [France] ; D. Ablitzer [France]Source :
- Chemical engineering science [ 0009-2509 ] ; 2003.
Abstract
Reduction, followed by hydrofluorination of uranium trioxide UO3 to produce uranium tetrafluoride UF4 is one of the stages of the French nuclear fuel making route. This dual operation is carried out in a specific reactor known as a moving bed furnace, consisting of a series of steel cylinders that form an L. In this first part of a two-part paper, the mathematical modelling of the furnace is presented in detail. The model describes solid and gas flow, heat transfer by convection, conduction and radiation in the moving bed and in the walls of the furnace, and chemical reactions. In the vertical part of the reactor, mass, momentum and energy balances are solved using the finite volume method. The horizontal part is modelled by a cascade of stirred gas and solid reactors. The assumptions and equations of the model, as well as the boundary conditions and numerical solution techniques are detailed. An example of calculated results is presented and found to agree satisfactorily with available measurements. Application of the model is discussed in Part 2.
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Ablitzer</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Science et Génie des Matériaux et de Métallurgie, Ecole des Mines, Parc de Saurupt</s1><s2>54042 Nancy</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country></affiliation></author></analytic><series><title level="j" type="main">Chemical engineering science</title><title level="j" type="abbreviated">Chem. eng. sci.</title><idno type="ISSN">0009-2509</idno><imprint><date when="2003">2003</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Chemical engineering science</title><title level="j" type="abbreviated">Chem. eng. sci.</title><idno type="ISSN">0009-2509</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Reduction, followed by hydrofluorination of uranium trioxide UO<sub>3</sub> to produce uranium tetrafluoride UF<sub>4</sub> is one of the stages of the French nuclear fuel making route. This dual operation is carried out in a specific reactor known as a moving bed furnace, consisting of a series of steel cylinders that form an L. In this first part of a two-part paper, the mathematical modelling of the furnace is presented in detail. The model describes solid and gas flow, heat transfer by convection, conduction and radiation in the moving bed and in the walls of the furnace, and chemical reactions. In the vertical part of the reactor, mass, momentum and energy balances are solved using the finite volume method. The horizontal part is modelled by a cascade of stirred gas and solid reactors. The assumptions and equations of the model, as well as the boundary conditions and numerical solution techniques are detailed. An example of calculated results is presented and found to agree satisfactorily with available measurements. Application of the model is discussed in Part 2.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0009-2509</s0></fA01><fA02 i1="01"><s0>CESCAC</s0></fA02><fA03 i2="1"><s0>Chem. eng. sci.</s0></fA03><fA05><s2>58</s2></fA05><fA06><s2>12</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Modelling of a moving bed furnace for the production of uranium tetrafluoride Part 1: formulation of the model</s1></fA08><fA11 i1="01" i2="1"><s1>DUSSOUBS (B.)</s1></fA11><fA11 i1="02" i2="1"><s1>JOURDE (J.)</s1></fA11><fA11 i1="03" i2="1"><s1>PATISSON (F.)</s1></fA11><fA11 i1="04" i2="1"><s1>HOUZELOT (J.-L.)</s1></fA11><fA11 i1="05" i2="1"><s1>ABLITZER (D.)</s1></fA11><fA14 i1="01"><s1>Laboratoire de Science et Génie des Matériaux et de Métallurgie, Ecole des Mines, Parc de Saurupt</s1><s2>54042 Nancy</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></fA14><fA14 i1="02"><s1>Comurhex, Usine de Malvési, B. P. 222</s1><s2>11102 Narbonne</s2><s3>FRA</s3><sZ>2 aut.</sZ></fA14><fA14 i1="03"><s1>Laboratoire des Sciences du Génie Chimique, ENSIC, 47, rue Henri Déglin</s1><s2>54001 Nancy</s2><s3>FRA</s3><sZ>4 aut.</sZ></fA14><fA20><s1>2617-2627</s1></fA20><fA21><s1>2003</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>7538</s2><s5>354000111261830120</s5></fA43><fA44><s0>0000</s0><s1>© 2003 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>17 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>03-0414331</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Chemical engineering science</s0></fA64><fA66 i1="01"><s0>GBR</s0></fA66><fC01 i1="01" l="ENG"><s0>Reduction, followed by hydrofluorination of uranium trioxide UO<sub>3</sub> to produce uranium tetrafluoride UF<sub>4</sub> is one of the stages of the French nuclear fuel making route. This dual operation is carried out in a specific reactor known as a moving bed furnace, consisting of a series of steel cylinders that form an L. In this first part of a two-part paper, the mathematical modelling of the furnace is presented in detail. The model describes solid and gas flow, heat transfer by convection, conduction and radiation in the moving bed and in the walls of the furnace, and chemical reactions. In the vertical part of the reactor, mass, momentum and energy balances are solved using the finite volume method. The horizontal part is modelled by a cascade of stirred gas and solid reactors. The assumptions and equations of the model, as well as the boundary conditions and numerical solution techniques are detailed. An example of calculated results is presented and found to agree satisfactorily with available measurements. Application of the model is discussed in Part 2.</s0></fC01><fC02 i1="01" i2="X"><s0>001D06B04C</s0></fC02><fC02 i1="02" i2="X"><s0>230</s0></fC02><fN21><s1>286</s1></fN21><fN82><s1>PSI</s1></fN82></pA></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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