Inscrição na biblioteca: Guest
Início - ICHMT DL Ano atual Arquivos Comitê executivo Centro Internacional para Transferência de Calor e Massa

R&D NEEDS RELATED TO THE CORE CATCHER CONCEPT BASED ON CORIUM SPREADING

DOI: 10.1615/ICHMT.1995.RadTransfProcHeatMassTransfSevNuclReactAcc.450

J. C. Micaelli
DRN/DTP-Grenoble, France; C.E.A./C.E.N.-G. - STT/Equipe Mixte

Jean-Marie Seiler
Commissariat a l'Energie Atomique (CEA), DEN/DTP, 17 rue des Martyrs, 38054 Grenoble cedex 9, France

H. Bung
DRN/DMT-Saclay, France

C. Maunier
DRN/DMT-Saclay, France

J. M. Humbert
DRN/DMT-Saclay, France

F. Valin
DTA-Saclay, France

Gerard Cognet
Laboratoire d'Energetique et de Mecanique Theorique et Applique, U.A. CNRS Institut National Polytechnique de Lorraine, NANCY, France

A. Forestier
DRN/DER-Cadarache, France

I. Szabo
Technical University, Budapest

J. P. Van Dorsselaere
CEA/DRN, CE de Cadarache, 13108 St. Paul lez Durance, France

Y. Philipponneau
DEC-Cadarache, France

Resumo

The analysis is devoted to the core-catcher concepts based on spreading with special emphasis for the EPR (European Pressurized Reactor) concept. The paper will present the general strategy of the work which has been derived from the ISTIR methodology initiated by NRC. Scenario analyses reveal that the corium may drain from the vessel in several steps under different forms (liquid jets or solid debris) with variable compositions and temperatures depending on accident sequences and time. Corium accumulations due to remelting of debris or overlapping of several flows are highly credible. Therefore the demonstration strategy is more directed to prove that accumulations will be limited and have consequences which are compatible with the core-catcher requirements. Real material spreading experiments are necessary to investigate the potential for formation of accumulations and tests with sustained heating are required (VULCANO). Coolability investigations must also be purchased (MACE). The papers will also focus on three specific items which are judged to be of importance: 1) the methodology used for the scaling of the spreading tests, 2) the necessity of coupling Thermalhydraulics, Metallurgy and Physico-Chemistry, and 3) the effect of the mechanical properties of the crust on the equilibrium height of an accumulation of molten corium.

ICHMT Digital Library

Bow shocks on a jet-like solid body shape. Thermal Sciences 2004, 2004. Pulsed, supersonic fuel jets - their characteristics and potential for improved diesel engine injection. PULSED, SUPERSONIC FUEL JETS - THEIR CHARACTERISTICS AND POTENTIAL FOR IMPROVED DIESEL ENGINE INJECTION
View of engine compartment components (left). Plots of temperature distributions in centreplane, forward of engine (right). CHT-04 - Advances in Computational Heat Transfer III, 2004. Devel... DEVELOPMENT AND CURRENT STATUS OF INDUSTRIAL THERMOFLUIDS CFD ANALYSIS
Pratt & Whitney's F-135 Joint Strike Fighter Engine under test in Florida is a 3600F class jet engine. TURBINE-09, 2009. Turbine airfoil leading edge stagnation aerodynamics and heat transfe... TURBINE AIRFOIL LEADING EDGE STAGNATION AERODYNAMICS AND HEAT TRANSFER - A REVIEW
Refractive index reconstructed field. (a) Second iteration. (b) Fourth iteration. Radiative Transfer - VI, 2010. Theoretical development for refractive index reconstruction from a radiative ... THEORETICAL DEVELOPMENT FOR REFRACTIVE INDEX RECONSTRUCTION FROM A RADIATIVE TRANSFER EQUATION-BASED ALGORITHM
Two inclusion test, four collimated sources. Radiative Transfer - VI, 2010. New developments in frequency domain optical tomography. Part II. Application with a L-BFGS associated to an inexa... NEW DEVELOPMENTS IN FREQUENCY DOMAIN OPTICAL TOMOGRAPHY. PART II. APPLICATION WITH A L-BFGS ASSOCIATED TO AN INEXACT LINE SEARCH