Browsing by Author "Binns, IM"

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    Design of concentric tubular reactor fuel elements for uniform coolant conditions.
    (Australian Atomic Energy Commission, 1962-06) Binns, IM; Licciardo, R
    Concentric tubular reactor fuel element geometries to give equal coolant outlet temperatures are presented. Oscillations from tube to tube in thickness and temperatures generally occur but it is possible to eliminate them by choice of the centre element. This may be a fuel rod or a non-heat—producing rod with or without a surrounding annulus of fuel. The geometries and temperatures are dependent on the voidage and on a non-dimensional parameter equivalent to a Biot number based on the channel equivalent diameter.
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    A survey of thermal and mechanical aspects of some H.T.G.C.R reactor core designs utilising beryllium oxide moderation
    (Australian Atomic Energy Commission, 1966-06) Gerrand, RP; Holy, ZJ; Binns, IM; Hawker, PAE
    This report presents results of a study, from July 1962, to June 1963, by the Core Development Group (Engineering Research Division), of various reactor core configurations for a high temperature gas cooled reactor system, using fuels dispersed in unclad BeO with BeO moderation and CO2 gas coolant. The configurations are naturally classified into two groups: one, Parallel Channel Reactors (cores with fixed internal geometry and specific coolant channels), and the other, Pebble Bed Reactors. The major advantages and design problems of each type are discussed. Methods for solution of the problems are suggested. Although the reactor types are compared, it is impossible to recommend any one type in preference to the others, owing to the lack of reliable nuclear and cost data.
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    Temperatures and thermo-elastic stress in spherically symmetric fuel elements with varying material properties
    (Australian Atomic Energy Commission, 1967-02) Binns, IM
    In the thermo-elastic stress analysis of a spherically symmetric fuel element as used in a pebble bed reactor the problems of a radial variation in material properties and the temperature dependence of these properties can be unified into a single analysis. Such an analysis is developed for incorporation in a computer programme and applied, as an example, to a fuel element for a beryllia moderated reactor. The results give the effect of different material properties between surface and centre, a buffer layer between surface coating and centre, an increase in temperature of a fuel element composed of materials with different properties, and temperature dependance of the fuel element materials.