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Generation, transmission, storage and local consumption of energy, are separate problems. Hydrogen probably makes sense in the long term, it can be transported
by flembat 2y ago
Generation, transmission, storage and local consumption of energy, are separate problems.
Hydrogen probably makes sense in the long term, it can be transported in pipes, can quickly refill a local users tank and is not going to create a monstrous waste recycling problem.
- rasz 2y ago>it can be transported in pipes how long do the pipes last before crumbing? and how long do the pumps last? Toyota cant even make a hydrogen car fuel pump last more than 7 hours.
- dzhiurgis 2y agoWe’re not even using hydrogen, the most dense fuel, in rockets. Why would you use anywhere else? Cars, trucks, EVTOLS and even planes are getting batteries which are superior in most aspects.
- ben_w 2y agoApart from the SLS, Ariane 6, Japan's H3 Launch Vehicle, the Russian Angara's KVTK stage, the Saturn V 2nd and 3rd stages, and several others which do/did all use hydrogen.
- dzhiurgis 2y agoHow many kg’s to orbit/year vs other fuels? It’s close to 0. If hydrogen is too complex for space, don’t even dream using one for cars and planes.
- ben_w 2y ago% of kg to orbit doesn't tell you much about the complexity, especially given that SpaceX is approximately half of the global total mass to orbit all by itself… by doing things that everyone else thought were too complicated. The fact that vehicles which were retired before I was born managed to use liquid hydrogen just fine, however, requires it to be relatively non-complex. This doesn't necessarily mean it will win, just that you can't rule it out on that basis.