Showing posts with label nuclear power. Show all posts
Showing posts with label nuclear power. Show all posts

2011-06-13

Towards Thorium Nuclear Power

New age nuclear | COSMOS magazine

Nuclear energy produces no greenhouse gases, but it has many drawbacks. Now a radical new technology based on thorium promises what uranium never delivered: abundant, safe and clean energy - and a way to burn up old radioactive waste.

Named after Thor, the warlike Norse god of thunder, thorium could ironically prove a potent instrument of peace as well as a tool to soothe the world's changing climate. With the demand for energy on the increase around the world, and the implications of climate change beginning to strike home, governments are increasingly considering nuclear power as a possible alternative to burning fossil fuels.

But nuclear power comes with its own challenges. Public concerns over the risk of meltdown, disposal of long-lived and highly toxic radioactive waste, the generation of weapons grade by-products, and their corresponding proliferation risks, all can make nuclear power a big vote-loser.

A thorium reactor is different. And, on paper at least, this radical new technology could be the key to unlocking a new generation of clean and safe nuclear power. It could prove the circuit-breaker to the two most intractable problems of the 21st century: our insatiable thirst for energy, and the warming of the world's climate.

YouTube - Thorium Remix 2009 - LFTR in 16 Minutes

Thorium is readily available & can be turned into energy without generating transuranic wastes. Thorium's capacity as nuclear fuel was discovered during WW II, but ignored because it was unsuitable for making bombs. A liquid-fluoride thorium reactor (LFTR) is the optimal approach for harvesting energy from Thorium, and has the potential to solve today's energy/climate crisis. This 16 minute video summarizes 197 minutes worth of Google Tech Talks on the subject of Thorium & LFTR.



Accelerator Driven System

Fission occurs in thorium when atoms absorb a neutron to become a heavier isotope and quickly decay into an isotope of the element protactinium and then an isotope of uranium, which is fissioned when struck by an additional neutron. The number of neutrons produced is not sufficient for a self-sustained chain reaction.

A particle accelerator could be used to provide the necessary neutrons for fission to occur in thorium and a nuclear reactor making use of such an outside neutron source would be known as an 'accelerator driven system' (ADS).

Electron Model of Many Applications: Technology which could save the world | Mail Online

Cryogenics engineer Rachael Buckley inside the 'Emma' (the Electron Model of Many Applications) accelerating ring at Daresbury

And this is Emma’s special significance. Making particle accelerators affordable means they could be built and used in practical, everyday settings – such as thorium power stations. The key to thorium energy is likely to be the further development of ‘pocket-sized’ machines – precisely the kind of accelerator that looks and behaves like Emma.
[...]
Last year, ThorEA published a report, Towards An Alternative Nuclear Future, which concluded it should be possible to build the first 600MW power plant fuelled by thorium with three attached ‘pocket-sized’ NS-FFAG accelerators within 15 years, at a cost of about £2 billion – making it highly competitive in relation to fossil-fuel or conventional nuclear alternatives.

2009-07-16

B&W's mPower Modular Nuclear Reactor

Technology Review - Published By MIT
A Preassembled Nuclear Reactor

A new modular design could make building nuclear reactors faster and cheaper.

A new type of nuclear reactor that is designed to be manufactured in a factory rather than built at a power plant could cut construction times for nuclear power plants almost in half and make them cheaper to build. That, in turn, could make it possible for more utilities to build nuclear power plants, especially those in poor countries. The design comes from Babcock and Wilcox, a company based in Lynchburg, VA, that has made nuclear reactors for the United States Navy ships for about 50 years.

clipped from www.babcock.com
B&W the Babcock & Wilcox Company - a McDermott Company
Features of the B&W mPower reactor include:
B&W mPower Containment Building
B&W mPower Reactor Concept

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Sources:
Technology Review: A Preassembled Nuclear Reactor
The Babcock & Wilcox Company
Modular Nuclear Reactors - B&W
Related:
FuturePundit: 150 MW Nuclear Reactor To Fit On Rail Cars
Atomic Insights Blog: B&W's mPowerTM Reactor - Who Says America is Behind in the Nuclear Renaissance?
Atomic Insights Blog: How Much Will a B&W mPower™ Modular Reactor Cost?

2008-09-30

Hyperion’s Portable Nuclear Power Units

Generating nuclear power with a small, compact modules that can be transported by truck, rail or ship to remote locations is possible with the Hyperion's portable nuclear power units.
clipped from www.impactlab.com

Portable Nuclear Power In Your Backyard

Portable Nuclear Power In Your Backyard
A radically different mindset than the “nuclear is too dangerous for anybody” of the 1980s
clipped from www.gizmowatch.com

Portable backyard nuclear reactor: solution to energy crisis?

What’s Innovative: Hyperion’s nuclear reactor uses clean water to moderate the reaction and also to cool the system. You can, therefore, rest assured that the reaction wouldn’t reach uncontrollable proportions.

Clean, Safe, Affordable Power ...
Clean
no greenhouse gases to contribute to climate change

Safe
the most controlled and regulated type of power on the planet

Affordable
the cheapest in terms of dollars & environmental impact

Reliable
Available 24/7 rain or shine, windy or calm

Now it is!

Introducing the Hyperion Power Module (HPG)


Think About It:

Global warming. Dependence on foreign oil. Infrastructure vulnerable to natural and manmade catastrophes. Undrinkable water, poverty, disease, social unrest.

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Related:
Portable Nuclear Power In Your Backyard
Your backyard nuclear plant will be ready in five years | Blog | Futurismic
Portable Backyard Nuclear Reactor: Solution To Energy Crisis? - Gizmo Watch
Portable Backyard Nuclear Reactors Ready to be Installed by 2013 : TreeHugger
Hyperion Power Generation
Interview with John Deal, Hyperion Power Generation