The cladding temperature distribution of a nuclear fuel rod in deformed geometry is analytically determined as a function of the azimuthal coordinate, in steady state conditions. The coolant-cladding heat transfer coefhcient is expressed by a parabolic function of the curvilinear coordinate on the wetted perimeter; the deformation provokes the touching on one point or on a line between adjacent rods. The solution to the energy balance equation allows to obtain the temperature as an integral function defined resorting to Green ’s method. The results are compared with reference data available in the literature and give a clear understanding of the temperature dependence on geometrical and physical parameters.

Cladding Temperature at channel blockages in nuclear reactors / E., Lorenzini; M., Spiga; Corticelli, Mauro Alessandro; M., Trentin. - In: KERNTECHNIK. - ISSN 0932-3902. - STAMPA. - 55 No 1:(1990), pp. 27-30.

Cladding Temperature at channel blockages in nuclear reactors

CORTICELLI, Mauro Alessandro;
1990

Abstract

The cladding temperature distribution of a nuclear fuel rod in deformed geometry is analytically determined as a function of the azimuthal coordinate, in steady state conditions. The coolant-cladding heat transfer coefhcient is expressed by a parabolic function of the curvilinear coordinate on the wetted perimeter; the deformation provokes the touching on one point or on a line between adjacent rods. The solution to the energy balance equation allows to obtain the temperature as an integral function defined resorting to Green ’s method. The results are compared with reference data available in the literature and give a clear understanding of the temperature dependence on geometrical and physical parameters.
55 No 1
27
30
Cladding Temperature at channel blockages in nuclear reactors / E., Lorenzini; M., Spiga; Corticelli, Mauro Alessandro; M., Trentin. - In: KERNTECHNIK. - ISSN 0932-3902. - STAMPA. - 55 No 1:(1990), pp. 27-30.
E., Lorenzini; M., Spiga; Corticelli, Mauro Alessandro; M., Trentin
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/620736
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