Modular High-Temperature Gas-Cooled Reactor (MHTGR) status
The MHTGR is an advanced reactor concept being developed under a cooperative program involving the US government, the nuclear industry, and the utilities. The design utilizes basic HTGR features of ceramic fuel, helium coolant, and a graphite moderator. However, the specific size and configuration is selected to utilize the inherent safety characteristics associated with these standard features to develop passive safety systems that provide a significantly higher margin of safety and investment protection than current generation reactors. The design meets the Protective Action Guideline (PAG) limits at the 425 m site boundary, hence precluding the need for evacuation or sheltering of the public during any licensing basis event. The safe behavior is not dependent upon operator action and is insensitive to operator error. The conceptual design is presently being reviewed by the Nuclear Regulatory Commission (NRC). A safety evaluation report and licensability statement are scheduled to be issued by the NRC in January 1988. Status of the design with respect to applications, performance/operation, siting flexibility, investment protection, safety and economics are presented in this paper.
- Research Organization:
- General Atomics Co., San Diego, CA (USA)
- DOE Contract Number:
- AC03-84SF11963
- OSTI ID:
- 6304767
- Report Number(s):
- GA-A-18878; CONF-870804-21; ON: DE87012088
- Country of Publication:
- United States
- Language:
- English
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