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With hydrogen this is especially problematic due to hydrogen embrittlement. https://en.wikipedia.org/wiki/Hydrogen_embrittlement https://en.wikipedia.org/wiki/H
by abakker 5y ago
With hydrogen this is especially problematic due to hydrogen embrittlement. https://en.wikipedia.org/wiki/Hydrogen_embrittlement https://en.wikipedia.org/wiki/Hydrogen_embrittlement
- semi-extrinsic 5y agoNope, because you don't make hydrogen tanks out of materials that are susceptible to hydrogen embrittlement. In particular, pressurized automotive-size hydrogen tanks aren't made from metal at all, they are typically epoxy/kevlar/carbon fiber composites.
- abakker 5y agoOOC, since you know what these tanks are made out of, what is the duty cycle/lifespan of those tanks? I was presented some info on Kevlar tanks for drones using fuel cells and remember thinking that the lifespan was very short.
- samplatt 5y agoAnything bound by epoxy (or any polymer?) surely will have a comparably short lifespan...
- semi-extrinsic 5y agoToyota certify and guarantee their tanks for 15 years, in production cars that you can go out and buy today.