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In the present paper is described how the steady state and transient fuel rod performance code TRANSURANUS can be used for safety analyses of WWER reactors, as an example a rod ejection accident, resulting in Reactivity Initiated Accident (RIA), is analysed.

A simple one-point kinetics model has been incorporated into the version v1m2j99 of the TRANSURANUS code. This simple model is characterised by an effective delayed neutron fraction beta, a neutron generation time lambda (uppercase), an effective decay constant lamba (lowercase) for the delayed neutrons and constant temperature coefficient gamma (uppercase) of the reactivity for fuel and moderator.

Additional information

Authors: LASSMANN ET AL, ITU, Karlsruhe (DE);ELENKOV D, Bulgarian Academy of Science, Sofia (BG)
Bibliographic Reference: Oral Report: 3rd International Seminar on WWER Fuel Performance, Modelling and Experimental Support, Pamporovo (BG), 4-8 October, 1999
Availability: 1 as paper EN 60584 ORA
ISBN: 954-9820-30-3
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