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Index » Radio Paradise/General » General Discussion » Nuclear power - saviour or scourge? Page: 1, 2, 3 ... 19, 20, 21  Next
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miamizsun

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Posted: Dec 7, 2017 - 5:31am

 NoEnzLefttoSplit wrote:

And I have been following it ever since! As I remember it, the difference between ITER and Wendelstein can be summarised as ITER is easier to build but makes it harder to control the plasma. The design of Wendelstein is harder to build but easier to manage the plasma. It is significant that at Wendelstein they have already moved on to working on the panels that are designed to siphon off the thermal energy and any impurities (helium ash, ash is a funny thing to call it but I guess it makes sense). So from my understanding, they have a bit of a lead over ITER, or maybe what they learn can be used in ITER when they get that far. Suddenly the time horizon doesn't look so awfully far in the future. 
't 

 
i think this touches on the differences with visuals



stay curious my friend


NoEnzLefttoSplit
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Posted: Dec 7, 2017 - 5:21am

 miamizsun wrote:

yep

i posted something a couple of pages (and probably a couple of years) back about this

anyone can scroll and see

it's relative and lazy is correct

the visual is like a filament

here it is {#Arrowd}

i think the countdown and excitement is around the 3:40 mark  {#Lol}
 
And I have been following it ever since! As I remember it, the difference between ITER and Wendelstein can be summarised as ITER is easier to build but makes it harder to control the plasma. The design of Wendelstein is harder to build but easier to manage the plasma. It is significant that at Wendelstein they have already moved on to working on the panels that are designed to siphon off the thermal energy and any impurities (helium ash, ash is a funny thing to call it but I guess it makes sense). So from my understanding, they have a bit of a lead over ITER, or maybe what they learn can be used in ITER when they get that far. Suddenly the time horizon doesn't look so awfully far in the future. 
't 


miamizsun

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Posted: Dec 7, 2017 - 5:11am

this guy has clearly explored the subject of garbage disposal reactor

as i understand it, it burns anything with a almost no waste

and the visual "stereotypical geek fashion" factor here takes the gold medal

everything else is a distant second

gotta love him tho...





miamizsun

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Posted: Dec 7, 2017 - 4:59am

 NoEnzLefttoSplit wrote:
and here's the newsletter on the development of the Wendelstein facility in German which might be using a better geometry.

 
yep

i posted something a couple of pages (and probably a couple of years) back about this

anyone can scroll and see

it's relative and lazy is correct

the visual is like a filament

here it is {#Arrowd}

i think the countdown and excitement is around the 3:40 mark  {#Lol}

miamizsun

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Posted: Dec 7, 2017 - 4:58am

 miamizsun wrote:

German fusion reactor achieves first plasma

After more than a year of technical preparations and tests, the Wendelstein 7-X stellarator has produced its first helium plasma.




Scientists are rejoicing after the inaugural test run of the Wendelstein 7-X (W7-X) fusion reactor last week. Inside the massive, uniquely-shaped stellarator, one milligram of helium gas was heated to 100 million degrees Celsius, creating a plasma which lasted for one tenth of a second. According to the team operating the reactor, “everything went according to plan,” which means we are leaps and bounds closer to harnessing nuclear fusion technology for cleaner energy.

 


Lazy8
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Location: The Gallatin Valley of Montana
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Posted: Dec 6, 2017 - 2:38pm

 ScottFromWyoming wrote:
Prodge got it

What that says about him or me, I'll leave up to you.

Fusion energy isn't a bomb thing. There are no high pressures to make things move away from the center.

There is nothing in the universe more fragile than a plasma trying to fuse. The slightest problem—a leak, a failure of the magnetic containment, whatever—and the magic fails to happen. The energy isn't released, it fails to appear in the first place—kinda the opposite of what happens in a fission reactor.

Significant heat would be generated in the reaction (I mean that's the whole point) but that's true in a wood stove or a gas turbine or a coal boiler. It's also a big part of the problem—you have magnets that need to be a teensy bit above absolute zero around the heat source. I'd be more worried about a helium explosion from a magnet quench than anything to do with the reactor. And dealing with a helium flash isn't that hard.

Wanna see something scary? Watch a wind turbine run away when its blade control fails. The ones that catch fire and burn for hours are my favorite. But a fusion reactor? More like watching a light bulb burn out.
Prodigal_SOB
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Posted: Dec 6, 2017 - 2:21pm

 ScottFromWyoming wrote:

Prodge got it

What that says about him or me, I'll leave up to you.

 
 And if it makes you feel any better with the same caveat as before I would guess like all the ammunition bunkers I used to have to work around it will have very strong walls and a flimsy roof.
ScottFromWyoming
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Posted: Dec 6, 2017 - 1:59pm

 Lazy8 wrote:
 ScottFromWyoming wrote:
I'm just thinking a 20-ft x 8000-mile core sample of our planet will affect the resale value.

Think of the savings on post hole diggers.

Damned if I know what you're talking about, but I've got a smart-assed response.

 
Prodge got it

What that says about him or me, I'll leave up to you.
Prodigal_SOB
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Posted: Dec 6, 2017 - 1:11pm

 ScottFromWyoming wrote:

I'm just thinking a 20-ft x 8000-mile core sample of our planet will affect the resale value.

 
 I'm not a nuclear engineer and in fact haven't even read the article yet, but I strongly suspect should the plasma somehow get out of the containment field most of the energy is going to go up and out rather than down.  This is hydrogen not uranium we're talking about.  I don't think I'd want to live within twenty miles of it though.


Lazy8
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Posted: Dec 6, 2017 - 12:47pm

 ScottFromWyoming wrote:
I'm just thinking a 20-ft x 8000-mile core sample of our planet will affect the resale value.

Think of the savings on post hole diggers.

Damned if I know what you're talking about, but I've got a smart-assed response.
ScottFromWyoming
I eat pints
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Posted: Dec 6, 2017 - 12:13pm

 Lazy8 wrote:

It's expensive enough!

And you've got it backward: pull this off and then Mars is within reach. The asteroid belt too.

 
I'm just thinking a 20-ft x 8000-mile core sample of our planet will affect the resale value.
Lazy8
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Posted: Dec 6, 2017 - 12:09pm

 ScottFromWyoming wrote:
Shouldn't they be doing that on, like, Mars?
 
It's expensive enough!

And you've got it backward: pull this off and then Mars is within reach. The asteroid belt too.
Red_Dragon

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Posted: Dec 6, 2017 - 11:55am

 ScottFromWyoming wrote:

Shouldn't they be doing that on, like, Mars?

 
I wonder where the technology would be by now if we'd poured all the money spent on this into solar collection technology.
ScottFromWyoming
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Posted: Dec 6, 2017 - 11:47am

 NoEnzLefttoSplit wrote: 
Shouldn't they be doing that on, like, Mars?
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Posted: Dec 6, 2017 - 11:02am

and here's the newsletter on the development of the Wendelstein facility in German which might be using a better geometry.
NoEnzLefttoSplit
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Posted: Dec 6, 2017 - 10:07am

I'm going to touch your pineapple!
miamizsun

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Posted: Oct 17, 2017 - 8:37am

i've posted about thorcon before (not sure which thread)

hargraves is making a case that nuclear is safer and cheaper than coal (while keeping co2 in check)

possibly targeting asian energy needs as a market




miamizsun

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Posted: Jan 26, 2017 - 5:39am

 NoEnzLefttoSplit wrote:

Cool stuff J.  Really hope this works.

 
i'd like to see small modular units mass produced

think assembly line (for instance one company wants to buy an old aircraft plant and set up mass production of small units that could fit in the bed of a pick-up truck)

all of the tech/design open sourced

imagine a third world country with little or no production (poor quality of life) getting access to practically unlimited energy (green no less)

we know energy is key to increasing life/health span (especially stabilizing population)

exponential technology/growth could dramatically increase the quality of life and environment

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Posted: Jan 26, 2017 - 5:10am

 miamizsun wrote:

as i understand it the oak ridge project (mentioned in the article) used thorium and in the design (see lower left) is similar to this in that if there was a failure/emergency the freeze plug thaws and

the medium drains into the dump tanks and shut is certain (walk away safe) and the unit is still intact and unharmed

i'm not sure how that is recovered or dealt with (see Fixable here)

maybe someone will add to our conversation

it would seem to me that if it was re-heated it would become molten again and i believe that would be done off site (at the production facility)

thanks for your interest

 
Cool stuff J.  Really hope this works.
miamizsun

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Posted: Jan 26, 2017 - 4:54am

 haresfur wrote:

There have been other molten salt reactors. I think there was one used for tritium production. I'm no expert but I thought one of the downsides was that, if you did a complete cold shut-down, it was screwed forever. 

 
as i understand it the oak ridge project (mentioned in the article) used thorium and in the design (see lower left) is similar to this in that if there was a failure/emergency the freeze plug thaws and

the medium drains into the dump tanks and shut down is certain (walk away safe) and the unit is still intact and unharmed

i'm not sure how that is recovered or dealt with (see Fixable here)

maybe someone will add to our conversation

it would seem to me that if it was re-heated it would become molten again and i believe that would be done off site (at the production facility)



thanks for your interest


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