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New Nuclear Engine Could Power Deep-Space Exploration

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11/27/2012 04:35 PM
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New Nuclear Engine Could Power Deep-Space Exploration
Researchers have tested a small prototype of a nuclear-reactor engine design that could one day power deep-space exploration probes.

The proposed design is based on a Stirling engine – an engine first invented in the 19th century that uses hot pressurized gas to push a piston. It would use a 50-pound nuclear uranium battery to generate heat that is then carried to eight Stirling engines to produce about 500 watts of power.

Scientists at NASA’s Glenn Research Center and Los Alamos National Laboratory have tested a pared-down prototype of this design using a small nuclear source and a single Stirling engine that produced about 24 watts of energy. Most deep-space probes require about 600 to 700 watts of power, so it will still be a while before this early test produces something capable of powering a spacecraft. This is the first test of a nuclear reactor system to power a spacecraft conducted in the U.S. since 1965.

read more: [link to www.wired.com]

Last Edited by phocuss on 11/29/2012 10:07 AM