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Category: nuclear energy

While wind turbine and solar power platforms are beginning to take to the sea, another, more established form of power might also avoid hiking real estate costs.

A Copenhagen-based startup just raised funding to the sum of eight figures in Euros to begin construction of a new kind of cheap, flexible, portable, and unyieldingly safe nuclear reactor, according to a press release shared by the company, Seaborg Technologies.

And, crucially, the timeline for global deployment will shatter conventional paradigms in the energy industry.

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How close is nuclear fusion to break-even? If you trust the headlines we’re getting close and the international project ITER is going to be the first to produce energy from fusion power. But not so fast. Scientists have, accidentally or deliberately, come to use a very misleading quantity to measure their progress. Unfortunately we’re much farther away from generating fusion power than the headlines suggest.

Phillip Ball’s article in the Guardian is here:

https://www.theguardian.com/environment/2019/oct/27/nuclear-fusion-research-power-generation-iter-jet-step-carbon-neutral-2050-boris-johnson.

The one in Science Magazine is here:

https://www.science.org/lookup/doi/10.1126/science.350.6264.

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Editor’s note, 6/28/21, 3:35 PM: The article was updated to clarify that Natrium features a sodium‐cooled fast reactor and not a type of molten salt reactor, as previously reported.

A nuclear power startup founded by Bill Gates has announced plans to build a new kind of nuclear reactor at a retiring coal plant in Wyoming.

This reactor will be the first real-world demonstration of the startup’s technology, which could help power the world — without warming the climate.

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Stellarators, twisty magnetic devices that aim to harness on Earth the fusion energy that powers the sun and stars, have long played second fiddle to more widely used doughnut-shaped facilities known as tokamaks. The complex twisted stellarator magnets have been difficult to design and have previously allowed greater leakage of the superhigh heat from fusion reactions.

Now scientists at the Max Planck Institute for Plasma Physics (IPP), working in collaboration with researchers that include the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL

The U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) is a collaborative national laboratory for plasma physics and nuclear fusion science. Its primary mission is research into and development of fusion as an energy source for the world.

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Past and present nuclear activities (energy, research, weapon tests) have increased the urgency to understand the behavior of radioactive materials in the environment. Nuclear wastes containing actinides (e.g. plutonium, americium, curium, neptunium…) are particularly problematic as they remain radioactive and toxic for thousands of years.

Lawrence Livermore National Laboratory (LLNL) scientists and collaborators proposed a new mechanism by which nuclear waste could spread in the environment.

The new findings, that involve researchers at Penn State and Harvard Medical School, have implications for nuclear waste management and environmental chemistry. The research is published in the Journal of the American Chemical Society.

“This study relates to the fate of nuclear materials in nature, and we stumbled upon a previously unknown mechanism by which certain could spread in the environment,” said LLNL scientist and lead author Gauthier Deblonde. “We show that there are molecules in nature that were not considered before, notably proteins like ‘lanmodulin’ that could have a strong impact on radioelements that are problematic for management, such as americium, curium, etc.”

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The firm is looking into how a micro-nuclear reactor could be used to propel rockets while in space at huge speeds and how that technology could then be redeployed to provide energy for drilling, processing, and storage for “Moon mining” and possibly “Mars mining.”

Dave Gordon, head of the company’s defense division, said this work is possible thanks to Jeff Bezos and Elon Musk and their respective space companies.

He added that’s Rolls-Royce is the only company on the planet that does mechanical, electrical, and nuclear and a full end-to-end lifecycle of nuclear capability. He also noted that the firm could use its experience in developing nuclear-powered submarines for the Royal Navy for 60 years to apply what it learned to spacecraft since submarines and spacecraft are somewhat similar.

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Fusion power could be a silver bullet for the world’s energy and environmental woes, but it’s famously always 30 years away. A recent flurry of announcements is raising hopes that maybe the timeline has started to tighten.

The technology has huge potential because it promises to generate enormous amounts of energy from abundant fuel that can be cheaply extracted from seawater. On top of that, the process doesn’t create any long-lived radioactive waste, unlike conventional nuclear power plants.

The catch is that finding a way to contain the same reaction that powers the sun here on Earth is no easy feat. Now, though, MIT spinout Commonwealth Fusion Systems (CFS) has taken a significant step in that direction after carrying out the first tests of a magnet that can reach a field strength of 20 teslas, the highest ever achieved on Earth.

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TEPCO has been repeatedly criticized for coverups and delayed disclosures of problems at the plant. In February, it said two seismometers at one reactor had remained broken since last year and failed to collect data during a powerful earthquake.

TOKYO (AP) — Officials at Japan’s wrecked Fukushima nuclear power plant have acknowledged they neglected to investigate the cause of faulty exhaust filters that are key to preventing radioactive pollution, after being forced to replace them twice.

Representatives of the operator, Tokyo Electric Power Company Holdings, made the revelation Monday during a regular review of the Fukushima Daiichi plant at a meeting with Japanese regulatory authorities. Three reactors at the plant melted following a massive earthquake and tsunami in 2011.

The filters are designed to prevent particles from escaping into the air from a contaminated water treatment system — called Advanced Liquid Processing System — that removes selected radioactive isotopes in the water to below legal limits.

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As demand for green energy increases, Spot can help nuclear operators improve uptime and reduce employees dosage by automating hazardous inspections. Learn more… See More.

Spot, an agile mobile robot, helps the nuclear power industry perform inspection tasks to improve operational data and reduce dosage for employees.

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A similar nuclear waste storage project, proposed in New Mexico by Holtec International Corp., is also awaiting approval by the Nuclear Regulatory Commission. The agency said it expects to make a decision on that proposal in January 2022.

Texas officials vowed to fight a federal regulator’s decision to approve plans to allow thousands of tons of highly radioactive nuclear waste to be stored in oil fields in the state.

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