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KRUSTY
EntityQ20706947· pop 11· linked from 17 articles

Also known as Kilopower

Kilopower is an experimental U.S. project to make new nuclear reactors for space travel. The project started in October 2015, led by NASA and the DoE’s National Nuclear Security Administration (NNSA). As of 2017, the Kilopower reactors were intended to come in four sizes, able to produce from one to ten kilowatts of electrical power (1–10 kWe) continuously for twelve to fifteen years. The fission reactor uses uranium-235 to generate heat that is carried to the Stirling converters with passive sodium heat pipes. In 2018, positive test results for the Kilopower Reactor Using Stirling Techno

Key facts

Nuclear reactor.name
Kilopower reactor
Nuclear reactor.image
Kilopower experiment.jpg
Nuclear reactor.caption
Prototype NASA 1kW Kilopower nuclear reactor for use in space and planet surfaces
Nuclear reactor.concept
Stirling engine
Nuclear reactor.generation
Experimental
Nuclear reactor.status
In development
Nuclear reactor.fuel_type
HEU
Nuclear reactor.fuel_state
Solid (cast cylinder)
Nuclear reactor.control
Boron carbide control rod
Nuclear reactor.reflector
Beryllium oxide radial reflector
Nuclear reactor.coolant
Sodium heat pipes
Nuclear reactor.thermal
4.3–43.3 kWth
Nuclear reactor.use
Long-duration space missions

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Wikidata facts

Image
Kilopower experiment.jpg
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nominal power output
10
Commons category
Kilopower

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~7 min read

Article

6 sections
Contents
  • Description
  • Demonstration Using Flattop Fissions
  • KRUSTY testing and first fission
  • See also
  • References
  • External links

Kilopower is an experimental U.S. project to make new nuclear reactors for space travel. The project started in October 2015, led by NASA and the DoE’s National Nuclear Security Administration (NNSA). As of 2017, the Kilopower reactors were intended to come in four sizes, able to produce from one to ten kilowatts of electrical power (1–10 kWe) continuously for twelve to fifteen years. The fission reactor uses uranium-235 to generate heat that is carried to the Stirling converters with passive sodium heat pipes. In 2018, positive test results for the Kilopower Reactor Using Stirling Technology (KRUSTY) demonstration reactor were announced.

Potential applications include nuclear electric propulsion and a steady electricity supply for crewed or robotic space missions that require large amounts of power, especially where sunlight is limited or not available. NASA has also studied the Kilopower reactor as the power supply for crewed Mars missions. During those missions, the reactor would provide power for the machinery necessary to separate and cryogenically store oxygen from the Martian atmosphere for ascent vehicle propellants. Once humans arrive the reactor would power their life-support systems and other requirements. NASA studies have shown that a 40 kWe reactor would be sufficient to support a crew of between 4 and 6 astronauts.

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