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Zeppelins were essentially giant gaseous hydrogen balloons. That is directly flammable. AFAIK liquid hydrogen tanks are orders of magnitude safer (as in “a tot
by pfortuny 6y ago
Zeppelins were essentially giant gaseous hydrogen balloons. That is directly flammable.
AFAIK liquid hydrogen tanks are orders of magnitude safer (as in “a totally different problem”).
- exged 6y agoLiquid hydrogen tanks are definitely a different problem, but I don't know if "orders of magnitude safer" is necessarily true. Many spacecraft have run into problems involving liquid hydrogen storage for a variety of reasons: - Liquid hydrogen is so cold that many metals weaken - Exposure to hydrogen itself weakens many metals (hydrogen embrittlement) - Liquid hydrogen expands rapidly if exposed to heat, so venting is needed - Hydrogen leaks through the smallest of seams Now imagine trying to build a tank that prevents all that from happening, and it has to be lightweight for usage on spacecraft / aircraft.
- Kuinox 6y agoI know nothing about it, but what about hydrogen cells ? It doesn't solve this issue ?
- ProZsolt 6y agoHydrogen cells nothing to do with storage, it's for converting hydrogen to electricity
- Kuinox 6y agoOh, to me the name in french implied it stored energy. We say "Pile a Hydrogen". In french we differenciate "batterie" and "pile", "pile" are one use, but I thought due to the name that the hydrogen cell would store energy.