Researchers Develop Highly Efficient Heat Engine. The newly-developed heat engine is a thermophotovoltaic cell that captures high-energy photons from a white-hot heat source and converts them into electricity with over 40% efficiency — a performance better than that of traditional steam turbines.

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>Over a range of 1,900 to 2,400 degrees Celsius, the new TPV cell maintained an efficiency of around 40%. >“We can get a high efficiency over a broad range of temperatures relevant for thermal batteries,” Professor Henry said


Would this work well with fusion reactors?


Sounds similar to how a Dyson sphere would function. No?