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Category: nuclear energy – Page 159

Fusion reactors ‘economically viable’ in a few decades, say experts

An illustration of a tokamak with plasma (credit: ITER Organization)

Fusion reactors could become an economically viable means of generating electricity within a few decades, replacing conventional nuclear power stations, according to new research at Durham University and Culham Centre for Fusion Energy in Oxfordshire, U.K.

The research, published in the journal Fusion Engineering and Design, builds on earlier findings that a fusion power plant could generate electricity at a price similar to that of a fission plant and identifies new advantages in using new superconductor technology.

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Small-scale nuclear fusion may be a new energy source

Fusion energy may soon be used in small-scale power stations. This means producing environmentally friendly heating and electricity at a low cost from fuel found in water. Both heating generators and generators for electricity could be developed within a few years, according to research that has primarily been conducted at the University of Gothenburg.

Nuclear fusion is a process whereby atomic nuclei melt together and release energy. Because of the low binding energy of the tiny atomic nuclei, energy can be released by combining two small nuclei with a heavier one. A collaboration between researchers at the University of Gothenburg and the University of Iceland has been to study a new type of nuclear fusion process. This produces almost no neutrons but instead fast, heavy electrons (muons), since it is based on nuclear reactions in ultra-dense heavy hydrogen (deuterium).

“This is a considerable advantage compared to other nuclear fusion processes which are under development at other research facilities, since the neutrons produced by such processes can cause dangerous flash burns,” says Leif Holmlid, Professor Emeritus at the University of Gothenburg.

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MIT designs small, modular, efficient fusion power plant

A cutaway view of the proposed ARC reactor (credit: MIT ARC team)

MIT plans to create a new compact version of a tokamak fusion reactor with the goal of producing practical fusion power, which could offer a nearly inexhaustible energy resource in as little as a decade.

Fusion, the nuclear reaction that powers the sun, involves fusing pairs of hydrogen atoms together to form helium, accompanied by enormous releases of energy.

The new fusion reactor, called ARC, would take advantage of new, commercially available superconductors — rare-earth barium copper oxide (REBCO) superconducting tapes (the dark brown areas in the illustration above) — to produce stronger magnetic field coils, according to Dennis Whyte, a professor of Nuclear Science and Engineering and director of MIT’s Plasma Science and Fusion Center.

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Article: Harnessing “Black Holes”: The Large Hadron Collider – Ultimate Weapon of Mass Destruction

Harnessing “Black Holes”: The Large Hadron Collider – Ultimate Weapon of Mass Destruction

Why the LHC must be shut down

By Nina Beety
Global Research, April 11, 2015

What would you have done to stop catastrophic events if you knew in advance what you know now.

We have the moral obligation to take action in every way we can.

The future is in our hands. The stakes are the highest they have ever been. The Large Hadron Collider developed by the European Centre for Nuclear Research (CERN) is a dangerous instrument. The start-up April 5 has initiated a more reckless use of LHC’s capabilities.

Continue: http://www.globalresearch.ca/the-large-hadron-collider-ultim…on/5442232

CERN-Critics: LHC restart is a sad day for science and humanity!

PRESS RELEASE “LHC-KRITIK”/”LHC-CRITIQUE” www.lhc-concern.info
CERN-Critics: LHC restart is a sad day for science and humanity!
These days, CERN has restarted the world’s biggest particle collider, the so-called “Big Bang Machine” LHC at CERN. After a hundreds of Million Euros upgrade of the world’s biggest machine, CERN plans to smash particles at double the energies of before. This poses, one would hope, certain eventually small (?), but fundamentally unpredictable catastrophic risks to planet Earth.
Basically the same group of critics, including Professors and Doctors, that had previously filed a law suit against CERN in the US and Europe, still opposes the restart for basically the same reasons. Dangers of: (“Micro”-)Black Holes, Strangelets, Vacuum Bubbles, etc., etc. are of course and maybe will forever be — still in discussion. No specific improvements concerning the safety assessment of the LHC have been conducted by CERN or anybody meanwhile. There is still no proper and really independent risk assessment (the ‘LSAG-report’ has been done by CERN itself) — and the science of risk research is still not really involved in the issue. This is a scientific and political scandal and that’s why the restart is a sad day for science and humanity.
The scientific network “LHC-Critique” speaks for a stop of any public sponsorship of gigantomanic particle colliders.
Just to demonstrate how speculative this research is: Even CERN has to admit, that the so called “Higgs Boson” was discovered — only “probably”. Very probably, mankind will never find any use for the “Higgs Boson”. Here we are not talking about the use of collider technology in medical concerns. It could be a minor, but very improbable advantage for mankind to comprehend the Big Bang one day. But it would surely be fatal – how the Atomic Age has already demonstrated — to know how to handle this or other extreme phenomena in the universe.
Within the next Billions of years, mankind would have enough problems without CERN.
Sources:
- A new paper by our partner “Heavy Ion Alert” will be published soon: http://www.heavyionalert.org/
- Background documents provided by our partner “LHC Safety Review”: http://www.lhcsafetyreview.org/

- Press release by our partner ”Risk Evaluation Forum” emphasizing on renewed particle collider risk: http://www.risk-evaluation-forum.org/newsbg.pdf

- Study concluding that “Mini Black Holes” could be created at planned LHC energies: http://phys.org/news/2015-03-mini-black-holes-lhc-parallel.html

- New paper by Dr. Thomas B. Kerwick on lacking safety argument by CERN: http://vixra.org/abs/1503.0066

- More info at the LHC-Kritik/LHC-Critique website: www.LHC-concern.info
Best regards:
LHC-Kritik/LHC-Critique

No nuclear waste: Fuel of future produced at Russia’s high-tech underground plant

RT

Russia’s ‘Breakthrough’ energy project enables closed a nuclear fuel cycle and a future without radioactive waste. The first batch of MOX nuclear fuel has been manufactured for the world’s only NPP industrially power generating breeder reactors.

The first ten kilograms of the mixed-oxide fuel (MOX) — a mixture of plutonium and uranium dioxides (UO2 and PuO2), have been industrially produced by Russia’s nuclear monopoly, Rosatom, at the Mining & Chemical Combine (GKhK) in the Krasnoyarsk region.

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Radioactive wild boar roaming the forests of Germany

By Justin Huggler, Berlin — The Telegraph

Twenty-eight years after the Chernobyl nuclear disaster, its effects are still being felt as far away as Germany – in the form of radioactive wild boars.

Wild boars still roam the forests of Germany, where they are hunted for their meat, which is sold as a delicacy.

But in recent tests by the state government of Saxony, more than one in three boars were found to give off such high levels of radiation that they are unfit for human consumption.

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Hitachi developing reactor that burns nuclear waste

By — Gizmag

The problem with nuclear waste is that it needs to be stored for many thousands of years before it’s safe, which is a tricky commitment for even the most stable civilization. To make this situation a bit more manageable, Hitachi, in partnership with MIT, the University of Michigan, and the University of California, Berkeley, is working on new reactor designs that use transuranic nuclear waste for fuel; leaving behind only short-lived radioactive elements.

In popular imagination, nuclear waste is a wildly radioactive goo that glows like the back end of a lightning bug. But in real life, the real problem of nuclear waste isn’t the “hot” stuff, but the mildly radioactive elements with atomic numbers greater than 92. That’s because highly radioactive elements have short half lives. That is, they burn themselves out very quickly – sometimes in a matter of minutes or even seconds.

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