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Spatial stabilization of Advanced Heavy Water Reactor

DSpace at IIT Bombay

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Title Spatial stabilization of Advanced Heavy Water Reactor
 
Creator SHIMJITH, SR
TIWARI, AP
BANDYOPADHYAY, B
PATIL, RK
 
Subject PERIODIC OUTPUT-FEEDBACK
NUCLEAR-REACTOR
LARGE PHWR
KINETICS
DYNAMICS
Spatial oscillation
Nodal model
Nuclear reactor control
Output feedback
 
Description Spatial oscillation in neutron flux distribution resulting from reactivity feedbacks due to fission products such as xenon is a matter of concern in large nuclear reactors. Left uncontrolled, the spatial oscillations may lead to "flux tilting" which may put the fuel integrity at peril. Hence during the design stages of any large nuclear reactor, it is essential to identify the existence of spatial instabilities and to design a suitable control strategy for regulating the spatial power distribution. In this paper, the existence of spatial instabilities in Advanced Heavy Water Reactor is investigated, which establishes that this reactor exhibits three modes of spatial instabilities. The paper further explores its stabilization using a control strategy based on feedback of total as well as spatial power distribution signals. The efficacy and robustness of the controller is demonstrated through dynamic simulations. (C) 2011 Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2012-06-26T06:10:06Z
2012-06-26T06:10:06Z
2011
 
Type Article
 
Identifier ANNALS OF NUCLEAR ENERGY,38(7)1545-1558
0306-4549
http://dx.doi.org/10.1016/j.anucene.2011.03.008
http://dspace.library.iitb.ac.in/jspui/handle/100/14011
 
Language English