Submitted by Sariel007 t3_zvojrh in UpliftingNews
Comments
jakebliss86 t1_j1tjtmc wrote
Hydrogen can be used in combustion engines, it doesn't require a fuel cell to power vehicles. Which is why it's very suitable for powering large commercial vehicles, like airplanes or cargo ships. Something no battery can do.
04221970 t1_j1u7vrb wrote
Yes, I agree. Hydrogen can be used in combustion engines, but practically it is not, Its much less efficient. I disagree that burning hydrogen is 'suitable' for powering large vehicles because of its lack of energy content per mass. Any research are hydrogen powered aircraft are using it to generate electricity, not to burn it directly. The bigger problem there is storing enough hydrogen under pressure to make a practical difference.
Even if I'm wrong, and burning hydrogen becomes more practical in applications rather than in fuel cells, the fact still remains that you have to somehow put energy into the system first to get your hydrogen. Its still energy 'storage' rather than creation.
hereforthensfwstuff t1_j1q85sz wrote
I thought hydrogen was colorless.
Scraw16 t1_j1q9jx7 wrote
It refers to how the hydrogen is produced. “Green” hydrogen is produced using a electrolysis process powered by renewable energy. “Blue” hydrogen is created from a chemical reaction involving natural gas, and the CO2 from the blue hydrogen process is then captured and stored, making it theoretically carbon neutral (however, it is criticized for the inevitable methane leaks and such from the process). “Grey” hydrogen is the same as blue hydrogen but the emissions aren’t captured and stored.
Translationerr0r t1_j1qlwe4 wrote
Woosh?
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MainframeSupertasker t1_j1xunwu wrote
I'm scared about the fact that it might burst lol. I love making h2 in my home
04221970 t1_j1q7laf wrote
Have to always keep in mind that hydrogen is an energy storage system; not an energy source. It functions as a battery. If a hydrogen fuel cell is better in some respect than other battery types than we can improve our lot.
It, however, always requires energy from somewhere else to create the hydrogen for the fuel. That original energy could be solar or wind or anything else.