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Index » Radio Paradise/General » General Discussion » Thorium Power Page: Previous  1, 2
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Lazy8

Lazy8 Avatar

Location: The Gallatin Valley of Montana
Gender: Male


Posted: Nov 15, 2016 - 7:04am

If you're curious about the physics of thorium reactors and what makes them different from the current technology this is the best primer on it I've found.
miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Nov 15, 2016 - 5:14am

maybe this is getting some traction...

17 countries cooperating on Molten Salt Nuclear Reactor Design and development

Experts from 17 countries laid the foundations last week for enhanced international cooperation on a technology that promises to deliver nuclear power with a lower risk of severe accidents, helping to decrease the world’s dependence on fossil fuels and mitigate climate change. Molten salt reactors – nuclear power reactors that use liquid salt as primary coolant or a molten salt mixture as fuel – have many favourable characteristics for nuclear safety and sustainability. The concept was developed in the 1960s, but put aside in favour of what has become mainstream nuclear technology since. In recent years, however, technological advances have led to growing interest in molten salt technology and to the launch of new initiatives. The technology needs at least a decade of further intensive research, validation and qualification before commercialization. “It is the first time a comprehensive IAEA international meeting on molten salt reactors has ever taken place,” said Stefano Monti, Head of the Nuclear Power Development Section at the IAEA. “Given the interest of Member States, the IAEA could provide a platform for international cooperation and information exchange on the development of these advanced nuclear systems.” Molten salt reactors operate at higher temperatures, making them more efficient in generating electricity. In addition, their low operating pressure can reduce the risk of coolant loss, which could otherwise result in an accident. Molten salt reactors can run on various types of nuclear fuel and use different fuel cycles. This conserves fuel resources and reduces the volume, radiotoxicity and lifetime of high-level radioactive waste.

 

For a developing country like Indonesia, a molten salt reactor's higher efficiency in electricity generation makes it more economical and affordable than fossil-fuel power plants. Bob Soelaiman Effendi, Thorium Energy Community, Indonesia



miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Sep 8, 2015 - 4:22am

here's the presentation referenced below

highlighting competitive costs v coal, modular efficiency and current tech

also if you look at the thorcon team you can see they have some good people in place

about 30 minutes and worth your time




miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Jun 9, 2015 - 6:56am

recent presentation from teac 7 on this site

i like the idea of small modular units with focus on easier maintenance/reconditioning

i'm hopeful that eventually something like this will be available



Safe

ThorCon is a simple molten salt reactor. Unlike all current reactors, the fuel is in liquid form. If the reactor overheats for whatever reason, ThorCon will automatically shut itself down, drain the fuel from the primary loop, and passively handle the decay heat. There is no need for any operator intervention. In fact there is nothing the operators can do to prevent the drain and cooling. ThorCon is walkaway safe.

The ThorCon reactor is 30 m underground. ThorCon has four gas tight barriers between the fuelsalt and the atmosphere. Three of these barriers are more than 25 m underground. Unlike nearly all current reactors, ThorCon operates at near-ambient pressure. In the event of a primary loop rupture, there is no dispersal energy and no phase change. The spilled fuel merely flows to a drain tank where it is cooled. The most troublesome fission products, including strontium-90 and cesium-137, are chemically bound to the salt. They will end up in the drain tank as well.

No New Technology

ThorCon is all about NOW. ThorCon requires no new technology. ThorCon is a straightforward scale-up of the successful Molten Salt Reactor Experiment (MSRE). The MSRE is ThorCon’s pilot plant. There is no technical reason why a full-scale 250 MWe prototype cannot be operating within four years. The intention is to subject this prototype to all the failures and problems that the designers claim the plant can handle. This is the commercial aircraft model, not the Nuclear Regulatory Commission model. As soon as the prototype passes these tests, full-scale production can begin.

Rapidly Deployable

The entire ThorCon plant including the building is manufactured in blocks on a shipyard-like assembly line. These 150 to 500 ton, fully outfitted, pre-tested blocks are barged to the site. A 1 GWe ThorCon will require less than 200 blocks. Site work is limited to excavation and erecting the blocks. This produces order of magnitude improvements in productivity, quality control, and build time. ThorCon is much more than a power plant; it is a system for building power plants. A single large reactor yard can turn out one hundred 1 GWe ThorCons per year.

Fixable

No complex repairs are attempted on site. Everything in the nuclear island except the building itself is replaceable with little or no interruption in power output. Rather than attempt to build components that last 40 or more years in an extremely harsh environment with nil maintenance, ThorCon is designed to have all key parts regularly replaced. Every four years the entire primary loop is changed out, returned to a centralized recycling facility, decontaminated, disassembled, inspected, and refurbished. Incipient problems are caught before they can turn into casualties. Major upgrades can be introduced without significantly disrupting power generation. Such renewable plants can operate indefinitely; but, if a ThorCon is decommissioned, the process is little more than pulling out but not replacing all the replacable parts.

Cheaper than Coal

ThorCon requires less resources than a coal plant. Assuming efficient, evidence based regulation, ThorCon can produce reliable, carbon free, electricity at between 3 and 5 cents per kWh depending on scale.


black321

black321 Avatar

Location: An earth without maps
Gender: Male


Posted: Oct 31, 2013 - 9:45am

Seems to be getting more major media attention:

Thorium backed as a 'future fuel'

 

Nuclear scientists are being urged by the former UN weapons inspector Hans Blix to develop thorium as a new fuel.

Mr Blix says that the radioactive element may prove much safer in reactors than uranium.

It is also more difficult to use thorium for the production of nuclear weapons.

His comments will add to growing levels of interest in thorium, but critics warn that developing new reactors could waste public funds.

Mr Blix, the former Swedish foreign minister, told BBC News: "I’m a lawyer not a scientist but in my opinion we should be trying our best to develop the use of thorium. I realise there are many obstacles to be overcome but the benefits would be great.

"I am told that thorium will be safer in reactors - and it is almost impossible to make a bomb out of thorium. These are very major factors as the world looks for future energy supplies."

http://www.bbc.co.uk/news/science-environment-24638816
miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Oct 7, 2013 - 5:35am

as i understand it, these are the older "pressure cooker" designs simply switching to "solid fuel" thorium for its obvious advantages

Thorium put to the test as policymakers rethink nuclear

Scientists are turning their attention to thorium, a cleaner and cheaper alternative to uranium.


========================================================================================================

and although thorium can be used in multiple designs it is believed by many that LFTR/MSR is one of the most promising

the chinese, who have 300 or so scientists working full time on a LFTR/MSR project (their projected roll out has been changed from 2017 to 2020)

it'd be awesome to see the LFTR/MSR rolled out on small scale design and used widely (little or no CO2, and the waste heat is ideal for desalination)


cc_rider

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Location: Bastrop
Gender: Male


Posted: May 17, 2013 - 9:30am

Thorazine Power?
miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: May 17, 2013 - 7:07am


Coaxial

Coaxial Avatar

Location: 543 miles west of Paradis,1491 miles eas
Gender: Male


Posted: May 3, 2013 - 6:36am

 miamizsun wrote:

yes he is

if you've got a moment

please watch this

and especially this
 

The first is so true...The second is brilliantly presented, thanks for sharing these...It is so sad how things have not evolved in a way to keep that fire to excel burning within our young people...Everything seems to be down to the lowest common denominator now.
miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: May 3, 2013 - 5:39am

 Coaxial wrote:

That is one smart kid.

 
yes he is

if you've got a moment

please watch this



and especially this




Coaxial

Coaxial Avatar

Location: 543 miles west of Paradis,1491 miles eas
Gender: Male


Posted: May 1, 2013 - 7:47am

 miamizsun wrote:
even kids get it

 
That is one smart kid.
miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Apr 30, 2013 - 4:11pm

even kids get it


miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Apr 22, 2013 - 7:15am

he gets into thorium around the 5:20 mark


miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Apr 21, 2013 - 10:43am

the next time you hear someone (especially politicians) speak up about

CO2 and global warming

ending poverty and improving the quality of life exponentially (including food, nutrition, shelter, ending/minimizing disease, extending life span, technology, etc.)

all pollution (including nuclear waste)

concerns about fresh water (desalination included)

you need to speak up about LFTR (Thorium power/energy)

hell, i wouldn't wait until someone else brought it up, i'd be proactive (that is if you care about these issues)

please do your part, go forth and replicate this message

peace and prosperity are within our reach



miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Jan 17, 2013 - 1:40pm

i think this points out the win/win for high tech and green tech


aflanigan

aflanigan Avatar

Location: At Sea
Gender: Male


Posted: Jan 17, 2013 - 11:55am

 oldslabsides wrote:
fact or fiction?

discuss.

or not.

 

Here's the abstract from an American Scientist article from July 2010.

When the United States committed decades ago to uranium fuel and pressurized-water reactors for its nuclear program, other viable technologies were set aside. One, the liquid thorium fuel reactor with molten salt coolant, is re-emerging as potentially the safest, most cost-effective solution to future energy needs in the carbon-containment era. Thorium is abundant, produces far less toxic fission products than uranium and may soon compete with coal for cost per kilowatt-hour. The chemistry of thorium fission is compelling, and the engineering of thorium reactors, with a longer history than most people realize, appears to be seductively manageable.

Full article here
miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Jan 17, 2013 - 9:04am

do they have a well funded army of lobbyists?  {#Lol}




Red_Dragon

Red_Dragon Avatar



Posted: Jan 17, 2013 - 8:43am

fact or fiction?

discuss.

or not.
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