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There is already a good solution for planes: ammonia, manufactured efficiently from green hydrogen. You will never be able to use gaseous or liquid hydrogen on
by yholio 5y ago
There is already a good solution for planes: ammonia, manufactured efficiently from green hydrogen. You will never be able to use gaseous or liquid hydrogen on planes due to the high volume, weight and risk associated with known storage methods.
Ammonia seems to strike the right balance:
https://www.ammoniaenergy.org/articles/zero-emission-aircraft-ammonia-for-aviation/ https://www.ammoniaenergy.org/articles/zero-emission-aircraf...
- _Microft 5y agoHow are they planning to work around ammonia's toxicity problem? It's fatal if breathed in at concentrations like we currently have CO_2 in the atmosphere (> ~400ppm). If a tank with conventional jetfuel or methane springs a leak or has to be dumped, you've got a huge problem. If that happens with an ammonia tank, you are most likely toast either way.
- ncmncm 5y agoMillions of tons of ammonia are produced every year. It is the favored refrigerant in industrial sites, such as warehouse-sized freezers. We have most of a century's experience handling ammonia in such quantities. But ammonia is probably a better choice for fueling trains and ships than for aircraft.