This paper describes a simplified model to predict the fluid velocity in the external channels of the tube bundle of a vertical once-through steam generator. The model is applied to analyse the three dimensional velocity distribution in a tube bundle cooled by steady state, single phase sodium flow. Results are presented for both a 45 MW and a 225 MW steam generator, including spacer grids and obstructions (to prevent the flow by-pass in the border channels)
VELOCITY PROFILES IN THE BUNDLE OF STRAIGHT TUBE STEAM GENERATORS / Lorenzini, E.; Spiga, M.; Corticelli, M. A.. - (1986), pp. 23-27. (Intervento presentato al convegno Boiler Dynamics and Control in Nuclear Power Stations 3 tenutosi a Harrogate, Engl, nel 1986).
VELOCITY PROFILES IN THE BUNDLE OF STRAIGHT TUBE STEAM GENERATORS
Spiga M.;Corticelli M. A.
1986
Abstract
This paper describes a simplified model to predict the fluid velocity in the external channels of the tube bundle of a vertical once-through steam generator. The model is applied to analyse the three dimensional velocity distribution in a tube bundle cooled by steady state, single phase sodium flow. Results are presented for both a 45 MW and a 225 MW steam generator, including spacer grids and obstructions (to prevent the flow by-pass in the border channels)
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