Forced outage assessment for the MHTGR [Modular High-Temperature Gas-Cooled Reactor]
The plant forced outage assessment was performed as part of the conceptual design phase Modular HTGR (MHTGR). This assessment shows that the plant forced outage is predicted to be a total of 782 average equivalent hours per plant year, or 8.9%. Therefore, the MHTGR plant meets the forced outage goal of 876 h or 10% per plant year. The forced outage contribution from plant investment risk is not included in this assessment except for the outages from primary coolant leaks. Investment risk considers accident events which are typically less likely than those considered in unavailability assessments. Therefore, investment risk characteristics need to be quantified to assure that their contribution is less than 1% per plant year. The plant forced outage assessment is based on the individual estimates of forced outage for each of the plant`s subsystems. The major contributors to forced outage are the turbine-generator, feedwater and condensate, heat transport, vessel systems. These systems along contribute 5.8% per plant-year to the plant`s unavailability.
- Research Organization:
- GA Technologies, Inc., San Diego, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC03-84SF11963
- OSTI ID:
- 714095
- Report Number(s):
- DOE/HTGR--86-069-Rev.1; ON: TI88026150
- Country of Publication:
- United States
- Language:
- English
Similar Records
The modular high-temperature gas-cooled reactor (MHTGR)
Modular High-Temperature Gas-Cooled Reactor (MHTGR) status
The Modular High-Temperature Gas-Cooled Reactor (MHTGR) in the US
Conference
·
Wed Oct 01 00:00:00 EDT 1986
·
OSTI ID:7173875
Modular High-Temperature Gas-Cooled Reactor (MHTGR) status
Conference
·
Fri May 01 00:00:00 EDT 1987
·
OSTI ID:6304767
The Modular High-Temperature Gas-Cooled Reactor (MHTGR) in the US
Conference
·
Sat Aug 01 00:00:00 EDT 1987
·
OSTI ID:6260291