Explosion overpressure test series: General-Purpose Heat Source development: Safety Verification Test program
The General-Purpose Heat Source (GPHS) is a modular, radioisotope heat source that will be used in radioisotope thermoelectric generators (RTGs) to supply electric power for space missions. The first two uses will be the NASA Galileo and the ESA Ulysses missions. The RTG for these missions will contain 18 GPHS modules, each of which contains four /sup 238/PuO/sub 2/-fueled clads and generates 250 W/sub (t)/. A series of Safety Verification Tests (SVTs) was conducted to assess the ability of the GPHS modules to contain the plutonia in accident environments. Because a launch pad or postlaunch explosion of the Space Transportation System vehicle (space shuttle) is a conceivable accident, the SVT plan included a series of tests that simulated the overpressure exposure the RTG and GPHS modules could experience in such an event. Results of these tests, in which we used depleted UO/sub 2/ as a fuel simulant, suggest that exposure to overpressures as high as 15.2 MPa (2200 psi), without subsequent impact, does not result in a release of fuel.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6912688
- Report Number(s):
- LA-10697-MS; ON: DE87002997
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
RADIOISOTOPE HEAT SOURCES
SAFETY
TESTING
VERIFICATION
MODULAR STRUCTURES
PLUTONIUM DIOXIDE
RESEARCH PROGRAMS
SPACECRAFT POWER SUPPLIES
URANIUM DIOXIDE
ACTINIDE COMPOUNDS
CHALCOGENIDES
ELECTRONIC EQUIPMENT
EQUIPMENT
HEAT SOURCES
OXIDES
OXYGEN COMPOUNDS
PLUTONIUM COMPOUNDS
PLUTONIUM OXIDES
POWER SUPPLIES
TRANSURANIUM COMPOUNDS
URANIUM COMPOUNDS
URANIUM OXIDES
NESDPS Office of Nuclear Energy Space and Defense Power Systems
070300* - Isotopic Power Supplies