A coupled neutronics-thermal hydraulics model of Advanced Heavy Water Reactor (AHWR) which can be used for control system studies, simulation etc. is presented in this paper. A nodal model is developed for core neutronics and a simple two-phase thermal hydraulics model is developed from first principles. Neutronics-thermal hydraulics coupling is achieved through the void reactivity feedback model. Selection of a suitable nodalization scheme through steady state analysis is discussed, and dynamic response of the model is also presented. © 2008 IEEE.

Bijnan Bandyopadhyay

Department of Electrical Engineering

IIT Jodhpur

S.R. Shimjith

A.P. Tiwari

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