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Space-time kinetics modeling of Advanced Heavy Water Reactor for control studies

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Title Space-time kinetics modeling of Advanced Heavy Water Reactor for control studies
 
Creator SHIMJITH, SR
TIWARI, AP
NASKAR, M
BANDYOPADHYAY, B
 
Subject periodic output-feedback
nuclear-reactor
neutron kinetics
spatial control
large phwr
rigorous derivation
coupled reactors
nodal equations
oscillation
accuracy
 
Description The paper presents the mathematical modeling of the space-time kinetics phenomena in Advanced Heavy Water Reactor (AHWR), a 920 MW (thermal), vertical pressure tube type thorium based nuclear reactor. The physical dimensions and the internal feedback effects of the AHWR are such that it is susceptible to xenon induced spatial oscillations. For the study of spatial effects and design of suitable control strategy, the need for a suitable mathematical model which is not of a very large order arises. In this paper, a mathematical model of the reactor within the framework of nodal modeling is derived with the two group neutron diffusion equation as the basis. A linear model in standard state space form is formulated from the set of equations so obtained. It has been shown that comparison of linear system properties could be helpful in deciding upon an appropriate nodalization scheme and thus obtaining a reasonably accurate model. For validation, the transient response of the simplified model has been compared with those from a rigorous finite-difference model. (C) 2009
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-26T14:19:24Z
2011-12-26T12:57:29Z
2011-12-27T05:41:57Z
2011-08-26T14:19:24Z
2011-12-26T12:57:29Z
2011-12-27T05:41:57Z
2010
 
Type Article
 
Identifier ANNALS OF NUCLEAR ENERGY, 37(3), 310-324
0306-4549
http://dx.doi.org/10.1016/j.anucene.2009.12.011
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11337
http://hdl.handle.net/10054/11337
 
Language en