The first hydrogen-powered planes are taking flight::undefined

  • Hazdaz@lemmy.world
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    2 years ago

    I am no fan of Hydrogen as a fuel. At least not for cars. It takes more to make it and it can offer up as a fuel. All the proponents of hydrogen cars usually have ulterior motives.

    BUT… I think that changes for the the aviation industry. The fact remains that batteries are incredibly heavy and expensive and they simply are not power-dense enough. Those are all issues for a car, but even more so for a vehicle that flies. Hydrogen could very well be a reasonable alternative for the aviation industry. Hydrogen isn’t particularly “green” to produce now, but there have been advances to make it much more so in recent years. I could see that being the fuel of the future for planes.

    • ElegantBiscuit@lemmy.world
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      2 years ago

      Hydrogen would also work well for ships, trains, and to some extent trucks. Basically anywhere that requires long distance travel without infrastructure in between where batteries just don’t have the range or power to weight ratio to reach - at least not efficiently. And hydrogen is also specifically better for things connecting to a central transport hub, where the hydrogen production and storage and refueling can be centralized to minimize the infrastructure buildup and maximize production and storage efficiency. These would include ports, airports, trainyards, warehouses, sufficiently large bus terminals, basically everything except cars. And as a bonus it doesn’t require stripping the earth or rare metals, sometimes mined by slave and child labor.

  • bcoffy@lemmy.world
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    2 years ago

    I understand the advantages of hydrogen since burning it doesn’t produce greenhouse gasses, but being around that much hydrogen makes me uneasy from everything I’ve read about how explody it is. I am sure the engineers responsible know what they’re doing though

  • Poem_for_your_sprog@lemmy.world
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    2 years ago

    Cool story bro.

    So where’d that hydrogen fuel come from?

    Today 95% of the hydrogen produced in the United States is made by natural gas reforming in large central plants.

    https://www.energy.gov/eere/fuelcells/hydrogen-resources

    Someone do the math on the net CO2 impact between jet fuel and natural gas reforming, including emissions to build that infrastructure, natural gas leaks (there’s a lot here), and transporting the hydrogen

      • Aa!@lemmy.world
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        2 years ago

        Given our tendency to overdo everything, this would concern me that we could actually use up all our water

        • GreyBeard@lemmy.one
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          2 years ago

          The output of hydrogen engines is water. So we reclaim that quickly. The more likely problem is the unnatural redistribution of water.