Research team develops power prototype to boost energy efficiency

https://techxplore.com/news/2023-06-team-power-prototype-boost-energy.html

"micro-combined heat and power prototype piston engine energy efficiency >93%... switches between natural gas, hydrogen and biogas, combines battery storage and solar energy... 4-stroke opposed piston engine... environmentally friendly, cost-effective... heat captured and reused as small scale thermal energy for building in single process... Even without providing heat, in lean burn mode, this mCHP showed more than 35% electrical energy efficiency"

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