INVESTIGATIONS INTO THE INTERCASSETTE COOLANT INTERACTION IN THE WWER-1000 REACTOR CORE WITH DIFFERENT MODIFICATIONS OF FUEL ASSEMBLIES

The authors give the results of experiments investigations into the intercassette interaction of the coolant in the WWER-reactor mixed core consisting of TVSA–T and TVSA–12 PLUS. The investigations were carried out on an aerodynamic stand by the method of gas tracer diffusion. An analysis of the spatial distribution of projections of the absolute fl ow velocity and of the propagation of the tracer concentrations enabled the authors to particularize the pattern of coolant fl ow past the spacer and mixing grids of the fuel assemblies.
   
Author:  S. M. Dmitriev, A. V. Varentsov, A. A. Dobrov, D. V. Doronkov, A. N. Pronin, V. D. Sorokin, and A. E. Khrobostov
Keywords:  core, fuel assembly, spacer and mixing grids, intercassette interaction, hydrodynamics of the coolant
Page:  1289