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'Game changing' space-mission power system passes tests with flying colors
phys.org ^ | 3 May 2018 | Furhana Afrid

Posted on 05/03/2018 1:06:39 PM PDT by DUMBGRUNT

Kilopower is a small, lightweight fission power system capable of providing up to 10 kilowatts of electrical power—enough to run several average households—continuously for at least 10 years. Four Kilopower units would provide enough power to establish an outpost. A video explains how kilopower works.

The prototype power system uses a solid, cast uranium-235 reactor core, about the size of a paper towel roll. Passive sodium heat pipes transfer reactor heat to high-efficiency Stirling engines, which convert the heat to electricity.

(Excerpt) Read more at phys.org ...


TOPICS: Chit/Chat; Science
KEYWORDS: spacemission
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Very nice! But the cost of the extension cords will run the cost up.
1 posted on 05/03/2018 1:06:39 PM PDT by DUMBGRUNT
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To: DUMBGRUNT

Be good here on mother Earth for remote science outposts, small military camps, emergency power after disasters when economy of scale brings it down.


2 posted on 05/03/2018 1:09:18 PM PDT by BBQToadRibs
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To: DUMBGRUNT

Pebble bed reactors would be better............

https://en.wikipedia.org/wiki/Pebble-bed_reactor

https://www.forbes.com/sites/jamesconca/2017/03/27/x-energy-steps-into-the-ring-with-its-advanced-pebble-bed-modular-nuclear-reactor/#2d6648b4745d


3 posted on 05/03/2018 1:15:40 PM PDT by Red Badger (Remember all the great work Obama did for the black community?.............. Me neither.)
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To: BBQToadRibs

or in my pickup and boat


4 posted on 05/03/2018 1:17:31 PM PDT by Cold Heart
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To: Red Badger
Pebble bed reactors would be better............

It's not so much the reactor, it's how you turn the heat generated by the reactor into electricity.

The RTGs used in space missions to date (including the Curiosity rover and the New Horizons mission) are less than 10% efficient.

Presumably, this one is somewhat better.

5 posted on 05/03/2018 1:22:15 PM PDT by Steely Tom ([Seth Rich] == [the Democrat's John Dean])
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To: DUMBGRUNT

Sounds like a copy of the Soviet’s TOPAZ thermionic reactor.


6 posted on 05/03/2018 1:29:17 PM PDT by DBrow
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To: DUMBGRUNT

I want one for my camper.


7 posted on 05/03/2018 1:30:45 PM PDT by 6ppc (It's torch and pitchfork time)
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To: Red Badger

Come back when you have an understanding of pebble bed reactors.


8 posted on 05/03/2018 1:32:45 PM PDT by TexasGator (Z1)
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To: TexasGator

They can be as small as your central air conditioner outside your home.......................


9 posted on 05/03/2018 1:35:04 PM PDT by Red Badger (Remember all the great work Obama did for the black community?.............. Me neither.)
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To: BBQToadRibs

I had to look up a stirling engine because traditional reactors converted the heat to electricity using team. https://en.wikipedia.org/wiki/Stirling_engine


10 posted on 05/03/2018 1:38:16 PM PDT by z3n
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To: Red Badger

Come back when you have an understanding of pebble bed reactors.


11 posted on 05/03/2018 1:38:44 PM PDT by TexasGator (Z1)
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To: DUMBGRUNT

More pipe dreams from Phys.org.
K25 was the primary U235 enrichment facility until it was closed back in 1985.
Unless someone can make Pu239 decay faster than 1/2 life of 25k years, the chance of large amounts of U235 lying around is slim to none.


12 posted on 05/03/2018 1:41:18 PM PDT by Zathras
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To: Zathras

OMG! We have to shot down all the nuclear power plants now?


13 posted on 05/03/2018 1:53:22 PM PDT by TexasGator (Z1)
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To: Zathras

“K25 was the primary U235 enrichment facility until it was closed back in 1985. .Unless someone can make Pu239 decay faster than 1/2 life of 25k years, the chance of large amounts of U235 lying around is slim to none.”

Seriously, consider the fact that all our commercial plants use U235 as a fuel ...


14 posted on 05/03/2018 1:55:58 PM PDT by TexasGator (Z1)
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To: DUMBGRUNT

The link does not mention total launch weight for the entire system.

Anyone have a ballpark estimate?

Thanks.


15 posted on 05/03/2018 2:01:41 PM PDT by zeestephen
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To: zeestephen

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20160012354.pdf

See 4th slide for mass of several variants.


16 posted on 05/03/2018 2:07:18 PM PDT by Cboldt
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To: Cboldt

Thanks. Excellent link.

The device appears to be constructed in a linear arrangement.

If that’s correct, it’s almost 50 feet in length, which might be a bigger problem than the weight, which is almost 8,000 pounds.


17 posted on 05/03/2018 2:46:08 PM PDT by zeestephen
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To: DBrow

Sounds like a copy of the Soviet’s TOPAZ thermionic reactor.

If I’m reading correctly the TOPAZ uses thermionic power generation.
The Kilopower uses a mechanical Sterling engine?


18 posted on 05/03/2018 2:53:02 PM PDT by DUMBGRUNT (This Space for Rent)
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To: zeestephen

” it’s almost 50 feet in length,”

It looks closer to 6.5 feet.


19 posted on 05/03/2018 2:55:33 PM PDT by TexasGator (Z1)
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To: Cboldt

Nice find.

I was looking for the weight and fell down a rabbit hole... easily distracted, but enjoyable, none the less.


20 posted on 05/03/2018 3:01:22 PM PDT by DUMBGRUNT (This Space for Rent)
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