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NASA Successfully Tests New Nuclear Reactor For Future Space Travelers (npr.org)

An anonymous reader quotes a report from NPR: NASA and the U.S. Department of Energy say they have successfully tested a new type of nuclear reactor that could one day provide juice to colonies on other worlds. The reactor can power several homes and appears able to operate in harsh environments. The new reactor uses more-conventional uranium fuel. Using a "core" about the size of a paper towel roll, the reactor can turn pistons that can run a generator. The generator can put out about 10 kilowatts of electrical power -- enough to run a few small homes. Scientists believe it could run continuously for a decade or so, making deep space travel a lot simpler. They also gave it a catchy acronym: KRUSTY, which stands for Kilopower Reactor Using Stirling TechnologY.

To see if it actually worked, scientists tested KRUSTY out in the Nevada desert on America's old nuclear test range. They put KRUSTY through its paces, culminating in a 28-hour test at full power. The team also simulated failures in KRUSTY's reactor components to show it wouldn't result in a meltdown on Mars. KRUSTY may find its way onto future space probes. Researchers say they might use an ensemble of four or five of the reactors to power colonies on the moon (which has 14-day nights, when the sun isn't available) or Mars.

4 of 178 comments (clear)

  1. Using a reciprocating engine is insane by drinkypoo · · Score: 2, Insightful

    Use ganged tesla turbines. The problem with the tesla turbine is that it is only efficient in a very narrow speed/load range, but that's trivially solved by using multiples. Using multiples means backup/redundancy, and tesla turbines have only one moving part.

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  2. lousy project planning by religionofpeas · · Score: 1, Insightful

    We are nowhere near the point where we need to worry about powering a space colony, so why is NASA wasting money on this part ? Probably some senator getting a good deal.

    1. Re:lousy project planning by CrimsonAvenger · · Score: 3, Insightful

      We are nowhere near the point where we need to worry about powering a space colony, so why is NASA wasting money on this part ?

      Well, one of the things that needs development before we do a space colony is a long-term power supply.

      So, absent NASA wasting money developing this, we won't ever reach the point of needing to worry about powering a space colony.

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  3. Re: 10Kw for MULTIPLE homes? by bill_mcgonigle · · Score: 3, Insightful

    Your house consumes more power, is less efficient, and has more creature comforts than the first homes on Mars will have.

    You could get your house down to 10KW and with a battery for smoothing a 10KW generator would probably take care of your genset-only 14KW load.

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