This has been discussed before on Ars, such as at https://arstechnica.com/civis/threa...ost-efficient-heat-pump-in-the-world.1501605/, and https://arstechnica.com ...
Interesting Engineering on MSN
Chinese scientists crack code for heat engines with max power and efficiency
A recent study led by Chinese scientists has challenged the hundreds-of-year-old myth that a heat engine can achieve both ...
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