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Author : B. D. Turland
Publisher :
ISBN 13 : 9789282767559
Total Pages : 132 pages
Book Rating : 4.7/5 (675 download)
Download or read book Molten Fuel Coolant Interactions written by B. D. Turland and published by . This book was released on 1996 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mujid S. Kazimi
Publisher :
ISBN 13 :
Total Pages : 538 pages
Book Rating : 4.:/5 (253 download)
Download or read book Theoretical Studies on Some Aspects of Molten Fuel-coolant Thermal Interaction written by Mujid S. Kazimi and published by . This book was released on 1973 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid generation of high pressures and mechanical work may result when thermal energy is transferred from the hot molten nuclear fuel to the coolant in an LMFBR accident. Such energetic thermal interactions are facilitated by the large heat transfer area created when molten fuel is fragmented in the coolant. Two aspects of the molten fuel coolant interaction problem are investigated: (1) the effects of gas/vapor blanketing of the fuel on post-fragmentation generation of pressure and mechanical work, and (2) the mechanism of the fragmentation of the molten fuel as it contacts the coolant. A model developed at Argonne National Laboratory to analyze fragmentation-induced energetic fuel-coolant interactions is modified to allow for gas/vapor blanketing of the fuel. The modified model is applied to a. hypothetical accident involving an FFTF subassembly. The results indicate that high shock pressures are not necessarily precluded by gas/vapor blanketing of the fuel. However, the generation of mechanical work is greatly reduced. A model is developed to simulate the dynamic growth of the vapor film around a hot spherical particle which has been suddenly immersed in a coolant. The model is applied to various cases of hot spheres in water and in sodium. A fragmentation mechanism based on the ability of the pressure pulsations of the vapor film to induce internal cavitation in the molten material is shown to predict the reported fragmentation behavior of drops of several hot molten materials in water and sodium.
Author : Seungho Han
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (717 download)
Download or read book Molten Fuel-coolant Interactions written by Seungho Han and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Patricia Pla
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783838311081
Total Pages : 180 pages
Book Rating : 4.3/5 (11 download)
Download or read book Modelling Molten Fuel Coolant Interaction written by Patricia Pla and published by LAP Lambert Academic Publishing. This book was released on 2009-08 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Severe accidents (SA) in LWR occur when reactor vessel water decreases and there is no available water for core cooling. During SA the reactor core could, after partial/total melt down, pour into the lower plenum. The study of the interaction of melt fuel with water is the objective of MFCI (Melt Fuel Coolant Interaction). MFCI is an important issue in reactor safety . A SA can lead to energetic (steam explosion) or non-energetic (melt quenching) interactions in-vessel or ex-vessel. FARO facility at JRC-Ispra simulated MFCI experiments under real conditions. Pre-test/post-test analytical activities using COMETA code were carried out. The code was assessed based on FARO tests. Limitations and uncertainties in the application to a full plant needed to be identified and quantified. The PhD research objective was achieved expanding the knowledge in MFCI. It was complemented with application of COMETA to conditions not experimented before, developing and improving COMETA sources and verifying code consistency, analysing and unifying the COMETA simulations. An analytical study was carried out to illustrate the MFCI inside a NPP SA sequence.
Author : American Society of Mechanical Engineers. Winter Meeting
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.3/5 (91 download)
Download or read book Fuel-coolant Interactions written by American Society of Mechanical Engineers. Winter Meeting and published by . This book was released on 1981 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ralf Büttner
Publisher :
ISBN 13 :
Total Pages : 73 pages
Book Rating : 4.:/5 (258 download)
Download or read book Molten Fuel Coolant Interactions in Entrapment Configuration written by Ralf Büttner and published by . This book was released on 1997 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of Size Aspects in Modelling Molten Fuel Coolant Interaction written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT Severe accidents in light water nuclear reactors occur when reactor vessel water inventory decreases and there is no available additional water coolant to be delivered into the core. In general, during an extended severe accident sequence a period exists in which the reactor core, after a partial or total melt down, is poured into the lower plenum that can have some water present. The study of the interaction of the melt fuel with the water is the objective of MFCI (Melt Fuel Coolant Interaction) activities. MFCI is one of the most important issues awaiting resolution in water cooled reactor safety analysis. The progression of a severe accident in a water cooled reactor can lead to energetic (steam explosion) or non-energetic (melt quenching) interactions as the molten fuel relocates and eventually interacts with the coolant either in the vessel lower head (in vessel) or in the cavity (ex-vessel). The MFCI experiments at JRC Ispra site were conducted in the FARO (Furnace And Release Oven) test facility under realistic melt composition and prototypical accident conditions to provide basic information on underlying phenomena. The experimental programme was complemented by comprehensive pre-test and post-test analytical activities based on the development and application of the thermalhydraulic COMETA (COre MElt Thermalhydraulic Analysis) code. The code is developed and assessed on the basis of experimental information acquired in the FARO facility tests, and there are some limitations and uncertainties in their application to the full plant, which need to be identified and possibly quantified. In general the main objective of the PhD research was achieved expanding the general knowledge in Melt Fuel Coolant Interaction. The knowledge was complemented collaborating and complementing the application of COMETA code under conditions not experimented before, developing and improving COMETA code sources and verifying the code consistency, analysing and unifying the.
Download or read book A Model for Molten Fuel-Coolant Interaction During Melt Slumping in a Nuclear Reactor written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes a simple fuel melt slumping model to replace the current parametric model in SCDAP/RELAP5. Specifically, a fuel-coolant interaction (FCI) model is developed to analyze the slumping molten fuel, molten fuel breakup, heat transfer to coolant, relocation of the molten droplets, size of a partially solidified particles that settle to the bottom of the lower plenum, and melt-plenum interaction, if any. Considering our objectives, the molten fuel jet breakup model, and fuel droplets Lagrangian model as included in a code TEXAS-V with Eulerian thermal hydraulics for water and steam from SCDAP/RELAP5 were used. The model was assessed with experimental data from MAGICO-2000 tests performed at University of California at Santa Barbara, and FARO Test L-08 performed at Joint Research Center, Ispra, Italy. The comparison was found satisfactory.
Author : Mohamed S. El-Genk
Publisher :
ISBN 13 :
Total Pages : 82 pages
Book Rating : 4.:/5 (836 download)
Download or read book Molten Fuel-coolant Interaction Occuring During a Severe Reactivity Initiated Accident Experiment written by Mohamed S. El-Genk and published by . This book was released on 1981 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mohamed S. El-Genk
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Molten fuel-coolant interaction occurring during a severe reactivity initiated accident experiment written by Mohamed S. El-Genk and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D. H. Cho
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (87 download)
Download or read book A Rate-limited Model of Molten Fuel/coolant Interactions written by D. H. Cho and published by . This book was released on 1972 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Niko Spitznagel
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (118 download)
Download or read book Energy Transfer During Molten Fuel Coolant Interaction written by Niko Spitznagel and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : G. J. Storr
Publisher :
ISBN 13 : 9780642598967
Total Pages : 27 pages
Book Rating : 4.5/5 (989 download)
Download or read book Molten Fuel written by G. J. Storr and published by . This book was released on 1989 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mujid Suliman Kazimi
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (256 download)
Download or read book Theoretical Studies of Some Aspects of Molten Fuel-coolant Thermal Interactions written by Mujid Suliman Kazimi and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Patricia Pla Freixa
Publisher :
ISBN 13 :
Total Pages : 167 pages
Book Rating : 4.:/5 (83 download)
Download or read book Assessment of size aspects in modelling molten fuel coolant interaction[ written by Patricia Pla Freixa and published by . This book was released on 2003 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (933 download)
Download or read book Fuel Coolant Interactions Under Forced Mixing Conditions written by and published by . This book was released on 1997 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a postulated severe accident scenario, a fuel channel in the core of a CANDU reactor becomes blocked and the fuel melts. The molten fuel may be ejected into the surrounding moderator. This report examines the existing literature relevant to the possibility of a fuel coolant interaction under these circumstances. Four experimental studies are identified and discussed in which the initial ejection of molten fuel into coolant approximates the postulated accident scenario. Currently available codes for predicting fuel coolant interaction are also reviewed. Finally, an experimental program is proposed to supplement the existing data base and resolve the probability of a fuel coolant interaction under forced mixing conditions.
Author : A.N. Hall
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (597 download)
Download or read book A new thermodynamic model of energetic molten fuel-coolant interactions written by A.N. Hall and published by . This book was released on 1987 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
