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Separation phenomena in Liquids and Gases

Abstract

The Proceedings of the 1989 Workshop are presented in two volumes: volume 1 contains 4 papers on plasma processes and 7 papers on centrifugation. The papers on plasma processes deal with two main methods: ion cyclotron resonance and rotating plasmas. A survey lecture reviews extensively the physics of the two processes, the published experimental results and includes an abundant bibliography of about 200 references. The 3 other papers communicate original and recent experiments carried out by the authors. The plasma process remains as a possible technology to separate stable isotopes and isotopes of metals located in the middle of the Mendeleev Table. Regarding the stable isotopes, the ion cyclotron resonance might be an alternative to the Calutron process. The sessions on centrifugation include 2 review papers by URENCO authors and 5 specialized communications. The review papers take stock of the centrifuge research and gives the current status of the centrifuge technology in URENCO. The authors say that the centrifugation is presently an established industrial and commercial process ready to enter in competition for any new construction of enrichment capacity. Volume 2 contains the papers on 3 topics: basic studies (11 papers), chemical process (2 papers) and laser processes (7 papers).  More>>
Authors:
Louvet, P; Soubbaramayer,; [1]  Noe, P
  1. CEA Saclay, Dept. des Lasers et de la Physico-Chimie, DESICP/DLPC/SPP, 91 - Gif-sur-Yvette (France)
Publication Date:
Jul 01, 1989
Product Type:
Conference
Report Number:
INIS-FR-2587
Resource Relation:
Conference: Workshop on separation phenomena in liquids and gases, Versailles (France), 10-12 Jul 1989; Other Information: PBD: 1989
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 07 ISOTOPES AND RADIATION SOURCES; CAPILLARY FLOW; CHARGE EXCHANGE; COLLISIONLESS PLASMA; COMPUTERIZED SIMULATION; CONVECTION; COST ESTIMATION; ELECTROMAGNETIC ISOTOPE SEPARATION; ELECTROREFINING; FLOW MODELS; GAS CENTRIFUGATION; GAS CENTRIFUGES; ION CYCLOTRON-RESONANCE; JETS; LASER ISOTOPE SEPARATION; MAGNETIC FIELDS; MIXTURES; PLASMA CENTRIFUGES; ROTATING PLASMA; ROTORS; SHOCK WAVES; SOLVENT EXTRACTION; SUSPENSIONS; TURBULENT FLOW; TWO-PHASE FLOW; VAPOR CONDENSATION; VELOCITY
OSTI ID:
20478914
Research Organizations:
CEA Saclay, Dept. des Lasers et de la Physico-Chimie, DESICP/DLPC/SPP, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
English; French
Other Identifying Numbers:
TRN: FR0400437053110
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
(v.1-2) 745 pages
Announcement Date:

Citation Formats

Louvet, P, Soubbaramayer,, and Noe, P. Separation phenomena in Liquids and Gases. France: N. p., 1989. Web.
Louvet, P, Soubbaramayer,, & Noe, P. Separation phenomena in Liquids and Gases. France.
Louvet, P, Soubbaramayer,, and Noe, P. 1989. "Separation phenomena in Liquids and Gases." France.
@misc{etde_20478914,
title = {Separation phenomena in Liquids and Gases}
author = {Louvet, P, Soubbaramayer,, and Noe, P}
abstractNote = {The Proceedings of the 1989 Workshop are presented in two volumes: volume 1 contains 4 papers on plasma processes and 7 papers on centrifugation. The papers on plasma processes deal with two main methods: ion cyclotron resonance and rotating plasmas. A survey lecture reviews extensively the physics of the two processes, the published experimental results and includes an abundant bibliography of about 200 references. The 3 other papers communicate original and recent experiments carried out by the authors. The plasma process remains as a possible technology to separate stable isotopes and isotopes of metals located in the middle of the Mendeleev Table. Regarding the stable isotopes, the ion cyclotron resonance might be an alternative to the Calutron process. The sessions on centrifugation include 2 review papers by URENCO authors and 5 specialized communications. The review papers take stock of the centrifuge research and gives the current status of the centrifuge technology in URENCO. The authors say that the centrifugation is presently an established industrial and commercial process ready to enter in competition for any new construction of enrichment capacity. Volume 2 contains the papers on 3 topics: basic studies (11 papers), chemical process (2 papers) and laser processes (7 papers). The papers on basic studies include investigations on rotating flows. A special attention is given to studies on convection flows, driven by acceleration field or (and) capillary forces. The interest of convection is obvious, as it has applications in important fields: the hydrodynamics of liquid uranium in the evaporation crucible of AVLIS Process, the crystal growth experiments on earth or under microgravity conditions (future experiments planned in space-labs) and the welding by electron or photon beams. Two papers are presented on the chemical process and both of them are by French authors. The French CEA has, in the past, developed with success the CHEMEX process. The technology was up to the task but the programme was shelved mainly because of lack of demand. Finally, seven papers deal with laser processes. Two of them review the AVLIS program in the UK and one paper gives the status of the MLIS project in West Germany. One communication from China and three papers by French authors deal with specific problems currently met in AVLIS studies, on the vapour beam and the ion extraction. A number of phenomena observed in AVLIS needs satisfactory explanations: the high value of the vapour velocity, the low value of metastables in the vapour beam, the extraction of ions at high density, etc. Session 1: plasma separation (review of isotopic plasma separation processes; production of depleted zirconium using a plasma centrifuge; measurements of isotope separation in a vacuum arc centrifuge). Session 2: plasma separation and centrifugation (recent developments in stable isotope separation by ionic cyclotron resonance; some aspects of the separation of multi-isotope mixtures with gas centrifuges; review paper on centrifuge technology and status of the URENCO centrifuge project; solution of the two-fluid equations for flow in a centrifuge; influence of stationary poles in the central region of gas centrifuges; extension of the analytic sixth order theory; applications of different analytic solutions for the centrifuge flow). Sessions 4 and 5: rotating flows (convection flows driven by centrifugal buoyancy in rapidly rotating systems; experimental investigation of the flow in a rotating pie-shaped cylinder; temperature distribution on rotating spherical shells; centrifugal separation of a suspension in a rotating vessel; spin-up from rest of a suspension - preliminary insight). Session 6: particle fluid mixture (modelling, simulation and comprehension of the flow field of a particles-fluid mixture; the effect of shear and lift on particle-gas separation; on the hydrodynamics of electrolytic refining of metals). Session 7 (calculation of condensation and vibrational relaxation in expanding flows of gas mixture by the second order GODUNOV scheme; thermo-capillary-buoyancy flow of molten metals in a 2D cavity: numerical analysis; influence of a magnetic field on plane shock motion). Session 8: separation by chemical processes (CHEMEX, a French process for isotope separation of uranium by chemical exchange and liquid-liquid extraction: main features and results; some specific problems). Session 9 and 10: laser process (the UK laser isotope enrichment program; some aspects of the UK program; status of the MLIS project in the FRG; measurement of velocity distribution of neutral atoms using LIF; three dimensional free jet flow from a finite length slit; ion extraction and charge exchange in laser separation: a computational approach; space-time evolution of a collisionless plasma between two biased walls.}
place = {France}
year = {1989}
month = {Jul}
}