Results 51 to 60 of about 13,529 (182)

Overview of MultiLayer Metal Insulation Development for Small Stirling Convertors at NASA Glenn Research Center [PDF]

open access: yes
A small Stirling convertor is currently under development at the NASA Glenn Research Center to produce one watt of electrical power from eight watts of heat.
Goodell, Daniel D.   +2 more
core   +1 more source

Design Simulation and Radiation Optimization of 90Sr Isotope Generator Radioactive Source

open access: yesJournal of Isotopes
90Sr has strong bremsstrahlung radiation, before manufacturing the radioisotope heat source, it is necessary to first simulate the composition of the 90SrTiO3 ceramic pellet, design the structure of the fuel cladding, and evaluate the bremsstrahlung ...
YANG Liqun, JIA Nannan, ZHOU Jian, LI Yefan, TANG Jun
doaj  

Nuclear systems for space power and propulsion [PDF]

open access: yes
As exploration and utilization of space proceeds through the 1970s, 1980s, and beyond, spacecraft in earth orbit will become increasingly larger, spacecraft will travel deeper into space, and space activities will involve more complex operations.
Klein, M.
core   +1 more source

A power conditioning system for radioisotope thermoelectric generator energy sources [PDF]

open access: yes
The use of radioisotope thermoelectric generators (RTG) as the primary source of energy in unmanned spacecraft is discussed. RTG output control, power conditioning system requirements, the electrical design, and circuit performance are also ...
Gillis, J. A., Jr.
core   +1 more source

Performance and weight dependence of a silicon-germanium RTG on fuel capsule temperature and heat flux [PDF]

open access: yes
Performance and weight dependence of silicon germanium RTG on fuel capsule temperature and heat ...
Raag, V.
core   +1 more source

Solid propellant impact tests. [Solid propellant impact testing of radioisotope heat sources] [PDF]

open access: yes, 1976
Future space missions, as in the past, call for the continued use of radioisotopes as heat sources for thermoelectric power generators. In an effort to minimize the risk of radioactive contamination of the environment, a complete safety analysis of each such system is necessary.
openaire   +2 more sources

Brayton-cycle radioisotope heat-source design study. Phase II /preliminary design/ report [PDF]

open access: yes
Brayton cycle radioisotope heat source ...
Chapman, T. G.   +4 more
core   +1 more source

Searching for modifications to the exponential radioactive decay law with the Cassini spacecraft

open access: yes, 2008
Data from the power output of the radioisotope thermoelectric generators aboard the Cassini spacecraft are used to test the conjecture that small deviations observed in terrestrial measurements of the exponential radioactive decay law are correlated with
Cooper, Peter S.
core   +1 more source

Overview study of Space Power Technologies for the advanced energetics program [PDF]

open access: yes
Space power technologies are reviewed to determine the state-of-the-art and to identify advanced or novel concepts which promise large increases in performance. The potential for incresed performance is judged relative to benchmarks based on technologies
Gross, S.   +8 more
core   +1 more source

Small Stirling dynamic isotope power system for robotic space missions [PDF]

open access: yes
The design of a multihundred-watt Dynamic Isotope Power System (DIPS), based on the U.S. Department of Energy (DOE) General Purpose Heat Source (GPHS) and small (multihundred-watt) free-piston Stirling engine (FPSE), is being pursued as a potential lower
Bents, D. J.
core   +1 more source

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