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One of the key elements considered for safe operation of the Nuclear Power Plant is the knowledge possessed by the operators. Plant safety is ensured by inducting well trained operators and engineers having domain knowledge and experience in the related field. Getting acquainted and trained in the simulator environment definitely yields best results when it comes to handling a crisis or an emergency situation by the operators in a plant. High fidelity Full Scope Simulator plays a major role in providing such training platform for imparting comprehensive training on various plant conditions. Modeling and Simulation of Backup Control Room (BCR) is a part of Prototype Fast Breeder Reactor (PFBR) Operator Training Simulator. This paper discusses about various steps involved in Modeling and Simulation of BCR mainly Virtual panel simulation, the associated logic and control simulation, data collection, naming of process variables, interfacing with the associated processes and integration and testing of BCR with Simulator Environment. The need of BCR in Nuclear Power Plant, its location in plant and various features are also included here.

Real time simulation of process models are in heavy demand in the present day industrial scenario especially in Nuclear Power Plant scenario. Nuclear core being the most important and critical component in the Nuclear reactor, the primary concern is towards safe and efficient operation of the reactor by adopting better techniques for monitoring and control of the reactor. Effort is on at global level to develop and build a Training Simulator, covering all the reactor subsystems to impart comprehensive training to Nuclear Power Plant operators. This paper describes about the importance of Core Temperature Monitoring System for Prototype Fast Breeder Reactor (PFBR), real time modeling and simulation of core temperature monitoring system, the basic requirements and methodologies adopted for modeling and simulation. The simulation includes run time calculation for all the fuel subassemblies (SA) outlet temperature and plugging or flow blockage of fuel subassembly for Equilibrium core. Equilibrium core is the state where fuel Subassemblies in the core have burnt for a definite period of time. The code calculates the individual subassembly outlet temperature according to flow and power fraction for that SA, Mean core outlet temperature and rise in mean core outlet temperature. At the time of flow blockage of a subassembly, the deviation in individual subassembly outlet temperature increases over its expected value and if it crosses its threshold, the SCRAM signal is initiated i.e. reactor comes to shutdown state automatically. The paper also discusses about the Integration of Core Temperature Monitoring logic model to the Simulator Environment and the integrated testing with simulator.

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