SNAP-50/SPUR program engineering progress report, October 1, 1963--December 31, 1963
Declassified 6 Sep 1973. A design study of the integration of the SNAP- 50/SPUR power plant with a space craft for use with the Titan 111C launch vehicle was completed. Reference Reactor Design No. 2 (8 Mwt) was integrated into the SNAP-50/SPUR power plant design. Emphasis has been shifted to Reference Reactor Design No. 3 (2 Mwt) which is based on a maximum fuel temperature of 2300F and a maximum fuel burnup of 1.5 percent. Environmental tests of control drive components were continued utilizing residual LCRE material. Test temperatures were increased to those of interest for SNAP-50/ SPUR. The four-inch pressure vessels completed 9139 and 7896 hours of their scheduled 10,000 hour tests. The full-scale LCRE prototype vessel completed 4800 hours of a 10,000 hour test. A pressure vessel test program was initiated for SNAP-50/SPUR designs using ten- inch vessels. Data on potential SNAP-50/ SPUR fuels indicate that serious limitations may exist at design conditions associated with Reference Design No. 2 (8 Mwt). Modifications to the fuel testing program were made to provide an evaluation of fuels at conditions corresponding to those used for Reference Reactor Design No. 3 (2 Mwt). Design was continued on the power plant pumps and drive motors. A preliminary dynamic analysis of the SNAP-50/SPUR power plant was completed on the CANEL electric analog computer. Testing of the Haynes25 alloy boiling heat transfer loop was continued to 3600 hours at which time a loop failure terminated the test program. The stainless steel boiling potassium loop was discontinued after 2265 hours of operation due to a failure in the boiler. The NonNuclear Systems Test was interrupted at 4021 hours by a water leak in the electrical heater cooling circuit. The materials program was continued in support of the SNAP-50/SPUR development effort. A natural convection potassium loop has completed 1655 hours of testing in a vacuum environment. (auth)
- Research Organization:
- Pratt and Whitney Aircraft, Middletown, Conn. (USA). Connecticut Advanced Nuclear Engineering Lab.
- DOE Contract Number:
- AT(30-1)-2789
- NSA Number:
- NSA-29-028716
- OSTI ID:
- 4302984
- Report Number(s):
- PWAC--634
- Country of Publication:
- United States
- Language:
- English
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CONTROL ROD DRIVES
DESIGN
FUEL ELEMENTS
N50200 --Metals
Ceramics
& Other Materials--Metals & Alloys
N77800* --Reactors--Space
Mobile
Propulsion
Transportation & Package Reactors
NESDPS Office of Nuclear Energy Space and Defense Power Systems
PERFORMANCE TESTING
PRESSURE VESSELS
PUMPS
REACTOR COMPONENTS
REACTOR MATERIALS