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This Device Turns Low-Grade Waste Heat Into Electricity

“Low-grade heat is produced on a massive scale around the world by manufacturing, computing, and many other industries—along with everyday items like air conditioners and household ovens... If we can capture our wasted energy before it actually goes to waste, isn’t that better?”

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(Popular Mechanics, Nov. 2019)

HKU Engineering team invents novel Direct Thermal Charging Cell for converting low-grade waste heat to usable electricity. University of Hong Kong.



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