>>13390292From rest, it seems the engine would produce 20 watts in the first cycle, but that assumes standard atmospheric conditions for evaporation and no misting action on the part of the injectors (assuming .0025 m^2 surface area for a 12 mL sphere of water using
https://calculator.academy/evaporation-rate-water-calculator/). A piston when compressed should provide an environment more conducive to evaporation. Also, as the engine gains the speed the rate of evaporation should increase due to a higher air speed.
>>13390319Technically a steam engine, yes you could make a six-stroke or compound IC engine and it would probably be more efficient. But imagine if the only thing you had to pay for was water and the inconvenience of not driving in cold or humid weather.
>>13390367>There's your issue, all the heat to evaporate the water comes from compression.No, I included that in my calculations. Pumping losses are the losses due to pumping fluids on the intake and exhaust strokes. The evaporation is driven by low humidity, not heat.