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High Temperature Test Unit Engineering Simulator

Designing a control system for a First Of A Kind (FOAK) pebble bed experimental facility (Heat Transfer Test Facility (HTTF)) and testing the controllers before the plant is complete presented a challenge. The solution was the development of a LabVIEW-Flownex engineering simulator.

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Pebble Bed Micro Model Start-up

The PBMM (the world's first closed cycle multi-shaft gas turbine test rig) was developed to demonstrate the operation of a three-shaft, pre- and inter-cooled recuperative Brayton cycle in order to gain a better understanding of its dynamic behavior. The entire cycle was designed, simulated and commissioned with Flownex within 9 months at a cost saving of $48 million.

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Pebble Bed Micro Model

The case study demonstrates a load following transient simulation of the Pebble Bed Micro model (PBMM). 

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Reactor Cavity Cooling System - Steady State

This case study demonstrates the investigation into the operating characteristics of a Reactor Cavity Cooling System (RCCS) during passive operation.

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Flow and Heat Transfer in a Packed Bed - Steady State

This case study demonstrates the steady-state simulation of the heat transfer through a packed pebble bed.

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Flow and Heat Transfer in a Packed Bed - Transient

This case study demonstrates the transient simulation of the heat transfer through a packed bed with no forced convection. This case study is applicable to packed pebble beds where only natural convection is present in the bed due to a heat source on the inside of the bed and a heat sink on the outside of the bed.

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Modeling of the start-up of a Two-shaft High-Temperature Gas-Cooled Reactor

This case study demonstrates the modeling of the start-up of the High Temperature Gas-Cooled Reactor (HTGR) nuclear power plant (NPP) discussed in the case study titled “Steady-State Simulation of a Two-shaft High-Temperature Gas-Cooled Reactor Nuclear Power Plant.” 

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Steady-State Simulation of a Two-shaft High-Temperature Gas-Cooled Reactor Nuclear Power Plant

This case study demonstrates the steady-state simulation of a High Temperature Gas-Cooled Reactor (HTGR) nuclear power plant (NPP).

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