Can’t you just break down water, use the hydrogen to power the electric motor, and I don’t think O2 as a byproduct is bad, now this is of course an ideal condition, but why hasn’t this been looked into more?

    • fastandcurious@lemmy.worldOP
      link
      fedilink
      arrow-up
      0
      ·
      9 months ago

      Kinda like internal combustion, you can probably use a battery or something to start it and then use part of the energy from the motor to further continue the process, but yeah lol this seems wishful thinking🤷🏼‍♂️

      • Nollij@sopuli.xyz
        link
        fedilink
        English
        arrow-up
        0
        ·
        9 months ago

        That would be a perpetual motion machine, and violate the first law of thermodynamics.

        The amount of energy you get by burning hydrogen (creating water) is exactly the same as you spent to split water into hydrogen and oxygen.

        • fishos@lemmy.world
          link
          fedilink
          English
          arrow-up
          0
          arrow-down
          2
          ·
          9 months ago

          No it’s not. They’re referring to exactly what a car or fusion does. To “break even”( in fusion terms), you must produce more energy than is being put in to maintain it. In a car, you turn some of that combustion power back into electrical power via the alternator and recharge the battery that you used to start the car.

          They’re just asking if the same principle can apply: using a quick burst of auxillary power to get it going that you then recoup from the excess power created by the hydrogen combustion. And keep in mind, you ARE creating excess power. It’s what moves the vehicle lol.