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Index » Radio Paradise/General » General Discussion » Nuclear power - saviour or scourge? Page: 1, 2, 3 ... 20, 21, 22  Next
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miamizsun

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Posted: Apr 13, 2018 - 7:25am

How We Screwed Up Nuclear Power

Half a century ago, nuclear power was on track to out-compete fossil fuels around the globe, which would have reduced the price of electricity, the amount of harmful air pollution, and greenhouse gas emissions associated with climate change. Then came a dramatic slowing of new construction and research into safer and more efficient nuclear reactors.

According to Australian National University researcher Peter Lang, the '60s and '70s saw a transition "from rapidly falling costs and accelerating deployment to rapidly rising costs and stalled deployment." Had the initial trajectory continued, he writes in the journal Energies, nuclear-generated electricity would now be around 10 percent of its current cost.

In a counterfactual scenario featuring increasing uptake of nuclear power from 1976, Lang calculates that by 2015 it would have replaced all coal-burning and three-quarters of gas-fired electric power generation. Thus, over the past 30 years we could have substituted 186,000 terawatt-hours of electricity production, avoiding up to 174 gigatons of carbon dioxide emissions and 9.5 million air pollution deaths. Cumulative global carbon dioxide emissions would be about 18 percent lower, and annual global carbon dioxide emissions would be one-third less.


miamizsun

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Posted: Mar 16, 2018 - 7:14am

 haresfur wrote:

It was a mistake for Carter to cancel the reprocessing program and mixed fuel reactors. I think it is a laugh when people complain about using plutonium in reactors when power reactors are getting about 1/3 of their energy from the plutonium produced by the time they need refueling. But the waste problem isn't the plutonium, although that is what scares people. The real issue is the long-lived fission products like technetium-99 and I-129. You still have to deal with those and reprocessing mobilizes them. There is a pretty good iodine plume from the British reprocessing plant.

I don't have an opinion on Thorium reactors. In the early days, the Hanford site played around with thorium in the K reactors by using it in the outside core tubes. You get a different suite of fission products but nothing that will go boom. I forget the details and my chart of the nuclides is at work.

 
this may offer some info/insight on the subject

sorenson has a loner more detailed google talk about the waste issue

one of the freaky things about this video is around the 13.39 mark george lucas of star wars fame strolls up behind the interview and nobody really notices or cares
{#Lol}



haresfur
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Posted: Mar 16, 2018 - 6:24am

 miamizsun wrote:


i agree with teac and pro-nuclear scientists and engineers that the politics around nuclear energy have been misrepresented and/or misinterpreted 

broadly speaking old tech was geared toward making stuff that goes boom (see oak ridge) and people should be cautious about weaponizing anything

when designed primarily for energy production the waste and the risk are greatly reduced (in fact we can burn the old waste for energy)

obviously coal and fossil fuels are sun-setting tech and solar and wind are intermittent and usually require storage and back up sources of energy

i encourage folks to investigate and thanks for the support
 {#Cheers}
 
It was a mistake for Carter to cancel the reprocessing program and mixed fuel reactors. I think it is a laugh when people complain about using plutonium in reactors when power reactors are getting about 1/3 of their energy from the plutonium produced by the time they need refueling. But the waste problem isn't the plutonium, although that is what scares people. The real issue is the long-lived fission products like technetium-99 and I-129. You still have to deal with those and reprocessing mobilizes them. There is a pretty good iodine plume from the British reprocessing plant.

I don't have an opinion on Thorium reactors. In the early days, the Hanford site played around with thorium in the K reactors by using it in the outside core tubes. You get a different suite of fission products but nothing that will go boom. I forget the details and my chart of the nuclides is at work.
miamizsun

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Posted: Mar 16, 2018 - 5:15am

 haresfur wrote:
I know a bit about nuke stuff and tend to agree with you, at least in the mid-term timescale, but not because I'm wild about the risks or dealing with the waste.

Mainly I'm anti-coal and I reckon that if people want the energy they should be willing to assume the risks of nuclear rather than the known damage from coal mining and coal emissions.
 

i agree with teac and pro-nuclear scientists and engineers that the politics around nuclear energy have been misrepresented and/or misinterpreted 

broadly speaking old tech was geared toward making stuff that goes boom (see oak ridge) and people should be cautious about weaponizing anything

when designed primarily for energy production the waste and the risk are greatly reduced (in fact we can burn the old waste for energy)

obviously coal and fossil fuels are sun-setting tech and solar and wind are intermittent and usually require storage and back up sources of energy

i encourage folks to investigate and thanks for the support


 {#Cheers}

miamizsun

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Posted: Mar 16, 2018 - 3:55am

 katzendogs wrote:
I had a  job here once.  


Just an FYI. {#Lol}
I rented a trailer in Joshua. The trailer (ina park) was backed up to a small ranch(ito) and was quiet and like in the middle of nowhere. This is where I found my first Walmart. Bought everthing I could get with my first paycheck. i bought the hottest friffin type of sleeping bag ever, not knowing all those ratings they have. (i'm in texas).

But i had a cow. I called her 96. Because of the tag in her ear. She and I would sometimes 'holla' at each other ! {#Lol} 
I would throw scraps at her at times. some beef even. Some eggshells. she was a crazy old friend from those few months.

 

some of us have had "kerouac moments" in our lives

mine wasn't as sexy as yours

{#Wink}
haresfur
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Posted: Mar 15, 2018 - 5:34pm

 miamizsun wrote:

i like the energy and i still think nuclear is the way to go

in the mean time i say build a lot of smaller reactors with the tech we have

scatter them where we need to

you know, to hold us over until this cake is baked
 
I know a bit about nuke stuff and tend to agree with you, at least in the mid-term timescale, but not because I'm wild about the risks or dealing with the waste.

Mainly I'm anti-coal and I reckon that if people want the energy they should be willing to assume the risks of nuclear rather than the known damage from coal mining and coal emissions.
katzendogs

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Posted: Mar 15, 2018 - 5:12pm

I had a  job here once.  


Just an FYI. {#Lol}
I rented a trailer in Joshua. The trailer (ina park) was backed up to a small ranch(ito) and was quiet and like in the middle of nowhere. This is where I found my first Walmart. Bought everthing I could get with my first paycheck. i bought the hottest friffin type of sleeping bag ever, not knowing all those ratings they have. (i'm in texas).

But i had a cow. I called her 96. Because of the tag in her ear. She and I would sometimes 'holla' at each other ! {#Lol} 
I would throw scraps at her at times. some beef even. Some eggshells. she was a crazy old friend from those few months.
miamizsun

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Posted: Mar 15, 2018 - 3:41pm




flan, that's actually funny  {#Arrowd}
aflanigan
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Posted: Mar 9, 2018 - 2:00pm

 Red_Dragon wrote:

I think energy should be decentralized - every home should have it's own reactor.

 
Slippery slope my friend. With our luck, Trump will agree to share nuclear weapons technology with North Korea when he meets Kim Jong Un, in return for hair grooming secrets.

Next thing you know Suburban Americans will be using superior North Korean weapons technology to employ their reactors to construct tactical weapons.


miamizsun

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Posted: Mar 9, 2018 - 1:53pm

 Red_Dragon wrote:
I think energy should be decentralized - every home should have it's own reactor.
 

easy

next thing you know you'll ask for running water and indoor plumbing



Red_Dragon

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Posted: Mar 9, 2018 - 1:43pm

 miamizsun wrote:

i like the energy and i still think nuclear is the way to go

in the mean time i say build a lot of smaller reactors with the tech we have

scatter them where we need to

you know, to hold us over until this cake is baked
 
I think energy should be decentralized - every home should have it's own reactor.
miamizsun

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Gender: Male


Posted: Mar 9, 2018 - 1:40pm

 aflanigan wrote:
Whose goose are you fixing to cook now??{#Wink}
 
damned if i know

but i did get this from my subscription this morning

it looks like canada and the states are finally going forward with this

le blanc says the we'll see it in the 2020s (canada first)

probably sooner rather than later (he doesn't want to speak for the regulators)

and by sooner i mean four to six years (i think i remember gleaning that from other material)

once they get that IMSR grill fired up, I'll bring the goose



aflanigan
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Posted: Mar 9, 2018 - 1:12pm

 miamizsun wrote:

you know, to hold us over until this cake is baked
 
Whose goose are you fixing to cook now??{#Wink}
miamizsun

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Posted: Mar 9, 2018 - 4:50am

 NoEnzLefttoSplit wrote: 
i like the energy and i still think nuclear is the way to go

in the mean time i say build a lot of smaller reactors with the tech we have

scatter them where we need to

you know, to hold us over until this cake is baked

NoEnzLefttoSplit
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Posted: Mar 8, 2018 - 10:44pm

Nuclear fusion on brink of being realised, say MIT scientists




miamizsun

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Posted: Jan 16, 2018 - 4:44am

 NoEnzLefttoSplit wrote: 
"what's up plasma?"

racist or not?

{#Lol}


NoEnzLefttoSplit
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Posted: Jan 15, 2018 - 11:17am

Wendelstein progressing nicely.
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...





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