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Title: General-Purpose Heat Source Safety Verification Test program: Edge-on flyer plate tests

Abstract

The radioisotope thermoelectric generator (RTG) that will supply power for the Galileo and Ulysses space missions contains 18 General-Purpose Heat Source (GPHS) modules. The GPHS modules provide power by transmitting the heat of STYPu -decay to an array of thermoelectric elements. Each module contains four STYPuO2-fueled clads and generates 250 W(t). Because the possibility of a launch vehicle explosion always exists, and because such an explosion could generate a field of high-energy fragments, the fueled clads within each GPHS module must survive fragment impact. The edge-on flyer plate tests were included in the Safety Verification Test series to provide information on the module/clad response to the impact of high-energy plate fragments. The test results indicate that the edge-on impact of a 3.2-mm-thick, aluminum-alloy (2219-T87) plate traveling at 915 m/s causes the complete release of fuel from capsules contained within a bare GPHS module, and that the threshold velocity sufficient to cause the breach of a bare, simulant-fueled clad impacted by a 3.5-mm-thick, aluminum-alloy (5052-T0) plate is approximately 140 m/s.

Authors:
Publication Date:
Research Org.:
Los Alamos National Lab., NM (USA)
OSTI Identifier:
6432398
Report Number(s):
LA-10872-MS
ON: DE87006309
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; SPACE VEHICLES; EXPLOSIONS; THERMOELECTRIC GENERATORS; MISSILE PROTECTION; ALUMINIUM ALLOYS; EXPERIMENTAL DATA; FRAGMENTATION; MIXED OXIDE FUELS; PLUTONIUM 238; PLUTONIUM DIOXIDE; SAFETY; TESTING; THERMOELECTRIC CONVERSION; URANIUM DIOXIDE; ACTINIDE COMPOUNDS; ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALLOYS; ALPHA DECAY RADIOISOTOPES; CHALCOGENIDES; CONVERSION; DATA; DIRECT ENERGY CONVERSION; DIRECT ENERGY CONVERTERS; ENERGY CONVERSION; EVEN-EVEN NUCLEI; FUELS; HEAVY NUCLEI; INFORMATION; ISOTOPES; NUCLEI; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PLUTONIUM COMPOUNDS; PLUTONIUM ISOTOPES; PLUTONIUM OXIDES; RADIOISOTOPES; SOLID FUELS; TRANSURANIUM COMPOUNDS; URANIUM COMPOUNDS; URANIUM OXIDES; VEHICLES; YEARS LIVING RADIOISOTOPES; NESDPS Office of Nuclear Energy Space and Defense Power Systems; 300300* - Thermoelectric Generators; 300504 - Fuel Cells- Applications

Citation Formats

George, T G. General-Purpose Heat Source Safety Verification Test program: Edge-on flyer plate tests. United States: N. p., 1987. Web. doi:10.2172/6432398.
George, T G. General-Purpose Heat Source Safety Verification Test program: Edge-on flyer plate tests. United States. https://doi.org/10.2172/6432398
George, T G. Sun . "General-Purpose Heat Source Safety Verification Test program: Edge-on flyer plate tests". United States. https://doi.org/10.2172/6432398. https://www.osti.gov/servlets/purl/6432398.
@article{osti_6432398,
title = {General-Purpose Heat Source Safety Verification Test program: Edge-on flyer plate tests},
author = {George, T G},
abstractNote = {The radioisotope thermoelectric generator (RTG) that will supply power for the Galileo and Ulysses space missions contains 18 General-Purpose Heat Source (GPHS) modules. The GPHS modules provide power by transmitting the heat of STYPu -decay to an array of thermoelectric elements. Each module contains four STYPuO2-fueled clads and generates 250 W(t). Because the possibility of a launch vehicle explosion always exists, and because such an explosion could generate a field of high-energy fragments, the fueled clads within each GPHS module must survive fragment impact. The edge-on flyer plate tests were included in the Safety Verification Test series to provide information on the module/clad response to the impact of high-energy plate fragments. The test results indicate that the edge-on impact of a 3.2-mm-thick, aluminum-alloy (2219-T87) plate traveling at 915 m/s causes the complete release of fuel from capsules contained within a bare GPHS module, and that the threshold velocity sufficient to cause the breach of a bare, simulant-fueled clad impacted by a 3.5-mm-thick, aluminum-alloy (5052-T0) plate is approximately 140 m/s.},
doi = {10.2172/6432398},
url = {https://www.osti.gov/biblio/6432398}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {3}
}