Calculation of the effect of fuel particle size on reactor dynamics

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Date
1966-11
Journal Title
Journal ISSN
Volume Title
Publisher
Australian Atomic Energy Commission
Abstract
The effect of fuel particle size on the dynamic behaviour of a 500 MW beryllia moderated reactor fuelled with oxide particles of diameter 2 to 500 microns dispersed in beryllia is discussed. Negative feedback of reactivity proportional to the reactor power occurs because of the very small thermal time constant of the fuel particles. For large fuel particles the feedback considerably reduces the peak power and the energy release following a reactivity accident.
Description
Keywords
Fuel particles, Reactor components, Beryllium oxides, Reactivity, Reactor accidents, Particle size
Citation
Turner, W. J., & Piper, R. H. (1966). Calculation of the effect of fuel particle size on reactor dynamics (AAEC/E167). Lucas Heights, NSW: Australian Atomic Energy Commission.