Tiny turbine that fits on your DESK runs on carbon dioxide - and it can produce enough energy to power a small town
Key Excerpts from Article on Website of Daily Mail (One of the UK's most popular newspapers)
Posted: June 4th, 2018
Engineers have developed a turbine which has the potential to power a small town all the while being no bigger than your office desk. Designed by GE Global Research, the turbine could power 10,000 homes and according to researchers, could help to solve some of the world's growing energy challenges. But rather than steam, which is typically used to set turbines in motion, the new turbine uses carbon dioxide. 'This compact machine will allow us to do amazing things,' said Doug Hofer, lead engineer on the project. According to MIT Tech Review, the turbine is driven by 'supercritical carbon dioxide', which is kept under high pressure at temperatures of 700˚C. Under these conditions, the carbon dioxide enters a physical state between a gas and a liquid, enabling the turbine to harness its energy for super-efficient power generation - with the turbines transferring 50 per cent of the heat into electricity. It could help energy firms take waste gas and repurpose it for efficient and cleaner energy production. Waste heat produced from other power generation methods, such as solar or nuclear, could be used to melt salts, with the molten salts used to the carbon dioxide gas to a super-critical liquid - which may be much quicker than heating water for steam. Currently, the design of the turbine would enable up to 10,000 kilowatts of energy to be produced, but the turbines could be scaled up to generate 500 megawatts, enough to power a city.
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