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LH2 may, in fact, be low-carbon fuel, depending of course on how it was produced. An LH2-powered aircraft would use exactly the electric turbines that Rolls-Ro
by angiosperm 3y ago
LH2 may, in fact, be low-carbon fuel, depending of course on how it was produced.
An LH2-powered aircraft would use exactly the electric turbines that Rolls-Royce just cancelled work on.
Once LH2-powered aircraft enter any given market, kerosene-powered craft would be wholly unable to compete. But it will take a long time to build up infrastructure for it. Ultimately, international airports will electrolyse their own LH2 using power delivered from regional solar and wind farms, but don't expect to see much of it before 2050.
- JonChesterfield 3y ago> Once LH2-powered aircraft enter any given market, kerosene-powered craft would be wholly unable to compete. Liquid hydrogen has about 1/4 the energy density of kerosene by volume. It's better per kilo which is nice for aircraft but you're still looking at finding lots more space in the structure for fuel or accepting that you can't fly very far. I don't see that being competitive with kerosene.
- angiosperm 3y agoLH2 would not fit in the wings, but would fit handily in nacelles slung under them. Space aboard aircraft is cheap; it is weight that costs.