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CTI SIMULATION INTERNATIONAL

S i t e I n d e x :

I n T h i s

S e c t i o n :

P W R S imulator P R E S S U R I Z E D W A T E R R E A C T O R W I T H

P A S S I V E S Y S T E M

The purpose of the 600 MW(e) advanced PWR reactor NPP simulator is

educational to provide a training tool for university professors and engineers

involved in teaching topics related to the advanced passive PWR reactor. Nuclear

engineers, scientists and trainers familiar with the conventional PWR would find

this simulator useful in broadening their understanding of the advanced PWR

characteristics, transients, power plant dynamics, and passive safety features.

As such, this simulator is currently used in the IAEA Workshop "NPP Simulators

for Education".

The simulator has sufficient simulation fidelity to provide realistic PWR plant

responses during normal operations and accident situations. More importantly,

Mode K Reactor Control Strategy is simulated in details, which allows double

closed loop control of (1) reactor coolant temp (2) axial power difference, with

the use of:

Heavy-worth control rods bank dedicated to axial shape control.

Light-worth control rods bank for controlling coolant temp at setpoint.

Auto regulation of both the reactivity and power distribution - permits

load-follow operations (frequency control) to respond to grid conditions,

with minimum use of Boron.

The PWR simulator also has a user-machine interface that mimics the actual

control panel instrumentation. More importantly, it allows users interactions with

the simulator during the operation of the simulated PWR plant.

The current configuration of the Simulator is able to respond to the operating

conditions normally encountered in power plant operations, as well as to many

malfunctions, as summarized in the following Table.

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The interaction between the user and the simulator is via a combination of

monitor displays, mouse and keyboard. Parameter monitoring and plant operator

controls, implemented via the plant display system at the generating station ,are

represented in a virtually identical manner on the simulator. Control panel

instruments and control devices, such as push-buttons and hand-switches, are

shown as stylized pictures, and are operated via special pop-up menus and

dialog boxes in response to user inputs.

Below are samples of the PWR Simulator screens:

PWR Overview Screen

PWR Control Rods and Shutdown Rods Screen

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Advanced PWR Power Control Screen

PWR Coolant Inventory & Pressurizer Screen

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PWR Passive System Screen

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