Modelling Nuclear Thermal Propulsion Reactor Expander Cycle Startup Transients
Conference
·
OSTI ID:2369607
- Idaho National Laboratory
As the interest in nuclear thermal propulsion grows, the need for high fidelity and comprehensive models of the system increases. An expander cycle model was developed using RELAP-7 for the thermal-hydraulic performance and Griffin to provide the power level using a point kinetics approximation, for a reference NTP system. The tank and pump are approximated using boundary conditions. Flow is split between the moderator cooling channels flow path and the regenerative cooling/reflector cooling channels flow path. The flow recombines before entering the turbine and the fuel cooling channels. The turbine pressure ratio is maintained at 1.44 using a PID controller. A startup transient was simulated and shows the capability of the model to run from low temperature and pressures to nominal conditions.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- 58
- DOE Contract Number:
- AC07-05ID14517
- OSTI ID:
- 2369607
- Report Number(s):
- INL/CON-23-71130-Rev000
- Country of Publication:
- United States
- Language:
- English
Similar Records
Modelling Nuclear Thermal Propulsion Reactor Expander Cycle Startup Transients
Modeling Nuclear Thermal Propulsion Startup Transients
Modelling Nuclear Thermal Propulsion Reactor Startup Transients
Conference
·
Tue May 09 00:00:00 EDT 2023
·
OSTI ID:2370350
Modeling Nuclear Thermal Propulsion Startup Transients
Conference
·
Mon Aug 09 00:00:00 EDT 2021
·
OSTI ID:2007800
Modelling Nuclear Thermal Propulsion Reactor Startup Transients
Conference
·
Thu Dec 02 23:00:00 EST 2021
·
OSTI ID:1894502