Comments by "H. " (@LocPH.) on "The most efficient hydrogen engine in the world wants to beat electric cars" video.

  1. No, that is not true. That 59% figure is for the ideal efficiency of a typical Otto engine, with a compression ratio of 9.5. Go ahead and calculate it. The most efficient (combined) heat engine in the world is a powerplant in Nagoya at 63%. The theoretical Carnot has a limit of 100 percent obviously, for infinitely high temperature difference. Anyways, they did not actually reach 60%, it's just a theoretical figure.
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  2.  @stijn2644  yes you're right, seems I missed that new record
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