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A Garage-Sized Reactor Could Provide Limitless Energy With Magnet-Free Technolog...

 2 years ago
source link: https://hardware.slashdot.org/story/22/06/24/2113254/a-garage-sized-reactor-could-provide-limitless-energy-with-magnet-free-technology
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A Garage-Sized Reactor Could Provide Limitless Energy With Magnet-Free Technology

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An anonymous reader quotes a report from Interesting Engineering: Seattle-based Zap Energy is using a lesser-known approach to nuclear fusion to build modular, garage-sized reactors. They are cheaper and don't require the large, incredibly powerful magnets used in traditional fusion experiments. Ultimately, they may also provide a quicker route to achieving commercially viable nuclear fusion, a press statement reveals.

Nuclear fusion has the potential to remove our reliance on fossil fuels by providing a practically limitless energy source that produces power in a similar way to the Sun and the stars. Fusion experiments, such as Europe's ITER, typically rely on large donut-shaped tokamak reactors using extremely powerful magnets to control the plasma generated during the fusion reaction. Zap Energy has developed a different approach with its Z-pinch technology. The company uses an electromagnetic field instead of the expensive magnetic coils and shielding materials used in tokamaks. This, they say, pins the plasma inside a relatively small space and "pinches" it until it becomes hot and dense enough for the required reaction to take place.

Z-pinch technology was first thought up in the 1950s, but until recently, instability problems meant that research had been largely focused on the more stable tokamak technology. In 2019, a group of researchers from the University of Washington proposed the use of sheared axial flow to smooth the plasma streams, preventing distortions that previously led to instability. One of the authors of that study, Uri Shumlak, co-founded Zap Energy in 2017 in a bid to leverage the sheared axial flow technique to make Z-pinch technology commercially viable. Just last week, Zap Energy reached a key milestone by creating the first plasmas inside its prototype reactor, called the FuZE-Q. The Zap Energy team also just closed a $160-million Series C funding round, which will help it to further develop its Z-pinch technology and hopefully bring it to the market. The company says its reactors could be small enough to fit inside a garage, meaning it could give both micro nuclear reactor and nuclear fusion firms a run for their money.

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