Systems

Combined Cycle Power Plant

This case study demonstrates the modeling of a Combined Cycle (CC) power plant of a High Temperature Gas-Cooled Reactor (HTGR). The nuclear reactor is not modeled in detail as the focus of this case study is not on the reactor but on the CC Power Conversion Unit (PCU).

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).

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.”

Sub Systems

Boiler Fuel Oil Distribution

Boiler Flow Distribution

This Case Study describes how Steinmüller was able to do what-if studies and to make decisions such as whether to remove the evaporative platens to optimize the plant in terms of reliability, plant availability and overall plant efficiency. Flownex proved valuable in the investigation by providing the new flow distribution in the water walls and super heaters based on design changes and also the steam condition that is provided to the turbines.

Boiler Header Cracking Investigation

Header Balancing

This case study demonstrates the capability of Flownex to determine the orifice sizes required to ensure balanced flow in several parallel pipes connected by two headers. In practice this system coud represent the cooling flow through a simple radiator.

Components

Shell and Tube Heat Exchanger - Transient

This case study demonstrates the steady-state thermal fluid simulation of a shell and tube heat exchanger. The shell and tube heat exchanger model can also be used in cycle analysis where it is used in conjunction with other models (See “Start-up of two-shaft High-Temperature Gas-Cooled Nuclear Power plant” case study).

Finned Tube Heat Exchanger - Transient

This case study demonstrates the transient thermal fluid simulation of a finned tube heat exchanger. The finned tube heat exchanger model can also be used in cycle analysis where it is used in conjunction with other models (See “Start-up of two-shaft High-Temperature Gas-Cooled Nuclear Power plant” case study).