1. Investigation of thermal striping in prototype fast breeder reactor using ten-jet water model
- Author
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K.S. Reddy, G. Padmakumar, I. Banerjee, and R. Krishna Chandran
- Subjects
Fluid Flow and Transfer Processes ,Materials science ,Turbulence ,Mechanical Engineering ,Numerical analysis ,Reynolds stress ,Mechanics ,Blanket ,Condensed Matter Physics ,Prototype Fast Breeder Reactor ,Nuclear reactor core ,Water model ,Cold jet ,Core structure ,Cover plate ,Jet mixing ,Jet velocities ,Prototype fast breeder reactors ,Reynolds stress models ,Solid core ,Temperature fluctuation ,Thermal striping ,Turbulence characteristics ,Water models ,Fast reactors ,Plates (structural components) ,Reynolds number ,Thermal cycling ,Breeder reactors ,Porosity - Abstract
A two-dimensional numerical analysis has been carried out to study the phenomenon of thermal striping in a prototype fast breeder reactor using a 10-jet water model that represents a row of the reactor core consisting of fuel and blanket zones. The above-core structures in the reactor are modeled with a porous lattice plate and solid core cover plate. The Reynolds stress model is used for simulating the turbulence characteristics of jet mixing phenomena. When the ratio of hot jet velocity to cold jet velocity is equal to 1, maximum fluctuations of temperature have been observed. Also the temperature fluctuations reduced gradually beyond a hot jet to cold jet velocity ratio of 1.0. The lattice plate is found to be more prone to thermal striping as compared to the core cover plate. � 2011 Taylor and Francis Group, LLC.
- Published
- 2011
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