SNAP RADIOISOTOPE SPACE PROGRAMS, TASK 2, 3 AND 7, QUARTERLY PROGRESS REPORT NO. 5, OCTOBER 1 THROUGH DECEMBER 31, 1960 [electronic resource]

Nesdps Office Of Nuclear Energy Space And Defense Power Systems.

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Bibliographic Details
Online Access: Online Access
Format: Government Document Electronic eBook
Language:English
Published: Washington, D.C. : Oak Ridge, Tenn. : United States. Department of Energy. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, 1961.
Subjects:

MARC

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245 0 0 |a SNAP RADIOISOTOPE SPACE PROGRAMS, TASK 2, 3 AND 7, QUARTERLY PROGRESS REPORT NO. 5, OCTOBER 1 THROUGH DECEMBER 31, 1960  |h [electronic resource] 
260 |a Washington, D.C. :  |b United States. Department of Energy. ;  |a Oak Ridge, Tenn. :  |b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,  |c 1961. 
300 |a Pages: 46 :  |b digital, PDF file. 
336 |a text  |b txt  |2 rdacontent. 
337 |a computer  |b c  |2 rdamedia. 
338 |a online resource  |b cr  |2 rdacarrier. 
500 |a Published through SciTech Connect. 
500 |a 10/31/1961. 
500 |a "mnd-p-3013-i" 
500 |a Martin Co. Nuclear Div., Baltimore. 
520 3 |a Functional testing was completed on the ground handling equipment for transporting the Ce/sup 144/ heat source container and loading the SNAP 1A generator. Mercury shield fill and drain tests for the generator system and the collar shield were conducted. Heat-transfer tests of the isotope heat source shipping cask were conducted. Simulated rocket-launch environmental tests of vibration, acceleration, and shock were completed on the G-2 generator. Analysis of the environmental test data was initiated. Final dssign studies for the G-3 generator were completed, and a thermoelectric module concept was selected for use in the isotope-fueled generator. Development tests of thermoelectric modules in a module tester were initiated. Voltage breakdown tests were conducted on a porcelain enamel spray coat. The matenial was evaluated for application to the G- 3 generator inner skin as a possible second discrete barrier against hot junction electrical shorts. SNAP 3 generator 3M-1G10 completed 322 days of life test operation, and the power input was terminated after the generator was operated under a full range of external loads to obtain performance characteristics. Electrical power output after 322 days at steady-state heat source and external load conditions was 1.92 watts, for an over-all efficiency of 2.9%. Tear-down inspection of the generator conformed previous indications of incrsased internal electrical resistance and thermal conductivity, which account for the gradual reduction in generator performance from the start-of-life electrical output of 3.45 watts and 5.2% over-all efficiency. The SNAP 3 3M-1G5 generator was successfully fueled with Po/sup 210/. Maximum electrical power output was 4 watts at an over-all efficiency of 5.2%. Radiological safety studies for space power were initiated. (For preceding period see MND-P-3012-I.) (auth) 
520 0 |a Nesdps Office Of Nuclear Energy Space And Defense Power Systems. 
536 |b AT(30-3)-217. 
650 7 |a Breakdown.  |2 local. 
650 7 |a Ceramics.  |2 local. 
650 7 |a Cerium 144.  |2 local. 
650 7 |a Coating.  |2 local. 
650 7 |a Dielectrics.  |2 local. 
650 7 |a Electric Conductivity.  |2 local. 
650 7 |a Fuels.  |2 local. 
650 7 |a Generators.  |2 local. 
650 7 |a Heat Transfer.  |2 local. 
650 7 |a Mercury.  |2 local. 
650 7 |a Polonium 210.  |2 local. 
650 7 |a Porcelain.  |2 local. 
650 7 |a Power.  |2 local. 
650 7 |a Production.  |2 local. 
650 7 |a Propulsion.  |2 local. 
650 7 |a Radioisotopes.  |2 local. 
650 7 |a Remote Handling.  |2 local. 
650 7 |a Safety.  |2 local. 
650 7 |a Shielding.  |2 local. 
650 7 |a Snap Systems.  |2 local. 
650 7 |a Space Vehicles.  |2 local. 
650 7 |a Testing.  |2 local. 
650 7 |a Thermal Conductivity.  |2 local. 
650 7 |a Vessels.  |2 local. 
650 7 |a General And Miscellaneous.  |2 edbsc. 
710 1 |a United States.  |b Department of Energy.  |4 spn. 
710 1 |a United States.  |b Department of Energy.  |b Office of Scientific and Technical Information.  |4 dst. 
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