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#303649 - 11/01/17 08:17 PM SMR (Small modular reactor)
jgw Offline
enthusiast

Registered: 05/22/06
Posts: 2241
Loc: Port Angeles, WA
SMR's are starting to get built. There were a couple of them that were supposed to be built and tested at the tennessee valley authority during the Obama administration. I googled it "tennessee smr tests" and got a pile of responses. Here are a couple of them:
https://analysis.nuclearenergyinsider.co...ociators-mexico
https://www.energy.gov/ne/smr-lts-site-permitting-and-licensing-projects

China is stepping up, as is canada, to build factories for this stuff:
https://www.reuters.com/article/us-china...e-idUSKBN1950HT
http://www.powermag.com/china-starts-building-smr-based-floating-nuclear-plant/

Now, what these things are. These are nuclear reactors (sometimes just generators running off of temperature differences) which are slightly bigger than an 8 seat hottub which can be buried in th earth and replaced every 20/30 years. They cannot melt down, they cannot blow up, they are, in other words completely safe. An interesting aside is that there are actually designs which would use existing nuclear waste to power up with. They can built in factories and delivered to site by truck, train, etc. One can, in theory, produce enough power to suply from 20,000 to 30,000 houses. They can also be ganged up to supply more power if needed.
On top of all of that they produce clean power and are environmentally clean.

These can, in other words, supply cleaner, more reliable power than either sun or wind without killing birds, etc.

I also find it interesting that China is getting into it bigtime (using, in at least 1 case, an American design). Germany too is testing them (even though they are shutting down their existing nuke plants as they are, rightly, considered to be dangerous). So, basically, whilst the rest of the world is seriously starting to consider the things, we, inspite of the fact that in theory we are already testing them, we are also paranoid about anything with "NUKE" in its description. Hopefully we can get over that and get going on this stuff as well.

http://www.world-nuclear.org/information...r-reactors.aspx
http://www.nuscalepower.com/our-technology/test-programs/international-test-programs
http://www.digitaljournal.com/tech-and-s.../article/499525
https://www.sciencealert.com/miniature-modular-nuclear-power-plants-are-being-implemented-in-the-us
https://www.asme.org/engineering-topics/...s-gain-traction
https://www.energy.gov/ne/nuclear-reactor-technologies/small-modular-nuclear-reactors



Edited by jgw (11/01/17 08:21 PM)

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#303654 - 11/02/17 04:56 AM Re: SMR (Small modular reactor) [Re: jgw]
Jeffery J. Haas Offline


Pooh-Bah

Registered: 08/03/04
Posts: 13499
Loc: Whittier, California
I believe Toshiba is also in this game as well.
_________________________
"The Left ones think I'm Right, the Right ones think I'm wrong."
Leon Russell - Magic Mirror"
https://www.youtube.com/watch?v=L-H1iQ5Y6Eg

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#303660 - 11/02/17 09:34 PM Re: SMR (Small modular reactor) [Re: Jeffery J. Haas]
Greger Online   content

Pooh-Bah

Registered: 11/24/06
Posts: 14483
Loc: Florida
Nuclear power, as we know it, is dead dead dead. Renewables are outstripping every other form of electrical generation in costs and returns on investment.
_________________________
"Be yourself; everyone else is already taken."— Oscar Wilde

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#303665 - 11/02/17 11:59 PM Re: SMR (Small modular reactor) [Re: jgw]
jgw Offline
enthusiast

Registered: 05/22/06
Posts: 2241
Loc: Port Angeles, WA
I sense that renewables are the desired. Talk, sometime, about the number of dead birds around the windmills and add that one into the mix. I know, its generally accepted that nuclear is dead but the only reason for that one is perception and has little to do with fact. SMR's are, in the long run, much cheaper than renewables. In addition to that they are VERY safe and, better yet, can use our existing supply of nuclear waste to power them instead of burying that stuff in the earth to create yet bigger problems.

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#303667 - 11/03/17 01:08 AM Re: SMR (Small modular reactor) [Re: jgw]
Greger Online   content

Pooh-Bah

Registered: 11/24/06
Posts: 14483
Loc: Florida
Wind turbines kill around 300,000 birds annually, house cats around 3,000,000,000
Quote:
Wind turbines kill between 214,000 and 368,000 birds annually — a small fraction compared with the estimated 6.8 million fatalities from collisions with cell and radio towers and the 1.4 billion to 3.7 billion deaths from cats
Source
And the there's bird deaths from oil spills and such....and fish deaths and fisheries collapsing etc. etc.
What will the ultimate price of Fukushima be?
Sing me the praises of nuclear energy all you want, there are better ways to get electricity than nuclear.
_________________________
"Be yourself; everyone else is already taken."— Oscar Wilde

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#303668 - 11/03/17 03:11 AM Re: SMR (Small modular reactor) [Re: Greger]
pondering_it_all Offline
veteran

Registered: 02/27/06
Posts: 8157
Loc: North San Diego County
Quote:
Nuclear power, as we know it, is dead dead dead.


You gotta wait a while for a hydrogen fusion economy. Then nuclear power will be cheap, cheap, cheap. So cheap we can probably use excess generating capacity to pull carbon right out of the air and bury it. Basically, reverse coal mining.

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#303673 - 11/03/17 12:48 PM Re: SMR (Small modular reactor) [Re: pondering_it_all]
logtroll Offline
veteran

Registered: 04/26/10
Posts: 8934
Loc: New Mexico (not old Mexico)
Originally Posted By: pondering_it_all
So cheap we can probably use excess generating capacity to pull carbon right out of the air and bury it. Basically, reverse coal mining.

That technology already exists, powered by 'cold' fusion. And it's not cheap, it is economically positive.

It's called regenerative farming - the fundamentals being discontinuing the use of plowing and chemical fertilizers.

Following proper protocols, farming can use less energy, make the soil more productive, require less water, and support whole ecosystems instead of sterile monocrops. Plants can mine the atmosphere for carbon and store it in the soil where it is put to very beneficial use - 10 - 20 tons per hectare per year, in fact.

Why do humans resist the easy and practical things?
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"You can't fix a problem until you understand what the problem is." Logtroll

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#303674 - 11/03/17 12:51 PM Re: SMR (Small modular reactor) [Re: logtroll]
logtroll Offline
veteran

Registered: 04/26/10
Posts: 8934
Loc: New Mexico (not old Mexico)
_________________________
"You can't fix a problem until you understand what the problem is." Logtroll

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#303685 - 11/03/17 08:35 PM Re: SMR (Small modular reactor) [Re: jgw]
pondering_it_all Offline
veteran

Registered: 02/27/06
Posts: 8157
Loc: North San Diego County
All good ideas for a variety of reasons. I would love to see vast herds of buffalo roaming parts of the Mid-West again, but too slow and it has limited potential. It doesn't affect all the coal and oil we burned, but rather just makes agriculture carbon-neutral. Then there's always the question of where you get the energy to do all that organic farming? Burn oil? Go Amish and use horses and hand labor?

I think it would be possible if we have lots of nearly free energy, like hydrogen fusion pulling carbon out of the atmosphere and making ethanol to run the farm machinery.

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#303692 - 11/04/17 01:04 AM Re: SMR (Small modular reactor) [Re: pondering_it_all]
Greger Online   content

Pooh-Bah

Registered: 11/24/06
Posts: 14483
Loc: Florida
Quote:
You gotta wait a while for a hydrogen fusion economy.
I've been waiting a lifetime already for the promises of nuclear energy to become a reality. While we get closer every year to a nuclear apocalypse we don't seem to get much closer to any safe, economical, and peaceful uses for it. Hydrogen fusion remains a pipe dream while renewables have stepped up to the plate and become the future of energy.
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