THE REVISED URGAP MODEL TO DESCRIBE THE GAP CONDUCTANCE BETWEEN FUEL AND CLADDING
The URGAP gap conductance model has been extended and revised generally. An enlarged data base consisting of approximately 1000 data has been constructed and was used to calibrate the revised URGAP model. With this model the gap conductance for very different conditions such as material pairing, gas and contact pressure, surface roughness of fuel and cladding, gap width, gas temperature and composition are very satisfactorily described. URGAP may be used in any code describing the fuel rod behaviour of any reactor type.
Bibliographic Reference: NUCLEAR ENGENEERING AND DESIGN, VOL. 103 (1987), PP. 215-221
Record Number: 1989126036301 / Last updated on: 1989-01-01
Available languages: en