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ISSN Online: 2377-424X

ISBN Print: 0-89116-299-2

International Heat Transfer Conference 7
September, 6-10, 1982, Munich, Germany

CALCULATION OF NON LINEAR TRANSIENT HEAT TRANSFER IN A NUCLEAR REACTOR USING A FINITE ELEMENT TECHNIQUE

Get access (open in a dialog) DOI: 10.1615/IHTC7.3580
pages 499-503

要約

The non-linear instationary heat transfer problem in a fuel element of a nuclear reactor is formulated and studied for conditions simulating a power transient during a reactor shutdown with perturbed cooling. The temperature profiles in the fuel and in the cladding, i.e. a hollow cylinder encased in a metallic annulus, are obtained by a finite element technique based on the Rosen's restricted variational principle. The numerical results show that the fuel and cladding temperatures do not exceed design or safety margins, even in the strongest transients, and do not induce undesirable physical changes in the fuel element structure.