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2 yr. ago

  • power requirements of spinning a shawarma and doing useful work is quite different. Would be very interested to learn more about this ancient indian steam engine if you gave some links. But if it's anything like the ancient greek aeolipile that has real world measured efficiency of as low as 0.0128 (theoretically 1%), it isnt really useful

  • With a diesel engine you could fuel it with biodiesel made from cooking oil, sodium hydroxide(an impure solution likely sufficient for our purposes could be obtained from wood ash, this was normally used in soap making) and methanol(obtainable by distillation and used as early as ancient egypt)

    Also certain non diesel engines can run on ethanol, including some motorcycles made for brasilian market that can run on E100 that is 94.7% ethanol (rest is water) so fuel for that engine could be distilled with medieval technology