Abo Bibliothek: Guest

ISSN Online: 2377-424X

International Heat Transfer Conference 12
August, 18-23, 2002, Grenoble, France

Critical specific power in fuel rods with biconcave cross-section

Get access (open in a dialog) DOI: 10.1615/IHTC12.150
6 pages

Abstrakt

The shape of a human blood red globule resembles a biconcave flat disk. It is known that such a geometrical form is able to minimize the resistance to the diffusion of oxygen and carbon dioxide. From the analogy between heat and mass transfer, the same is expected to happen to the heat transfer. In this sense, the present work has investigated the effects of changing the shape of the nuclear reactor fuel rods cross-section from circular into biconcave shape, to the critical specific power, while keeping constant the inner central temperature. In order to handle the special mathematical intricacies due both to the geometry and the nonlinear temperature-dependent parameters, the Generalized Integral Transform Technique (GITT) has been employed. The temperature field and the fuel cells critical power for various shapes of the biconcave geometry are presented and discussed and the only case found in literature agrees quite well.