tantricengineer
tantricengineer t1_jas91dt wrote
Reply to comment by kyckling666 in Universal Hydrogen Successfully Completes First Flight of Hydrogen Regional Airliner by tooch_my_gooch
I love smart, low tech solutions like this.
tantricengineer t1_jarnif0 wrote
Reply to comment by MightyH20 in Universal Hydrogen Successfully Completes First Flight of Hydrogen Regional Airliner by tooch_my_gooch
These systems must store hydrogen at thousands of PSI for the energy density to rival petrol based fuels. The ideal storage state is nearer to 10,000 PSI where hydrogen becomes slurpy-like in composition.
The material science is coming along. One challenge with hydrogen fuel tanks is if a tank is punctured in an accident, you have rapid expansion of hydrogen gas as it equalizes to atmospheric pressure, and a likely fire which has little color. (Look at the FLIR view here: https://youtu.be/0aDC2ZmikRE )
This makes it difficult to determine where flames are.
Still rooting for this tech though since it gives us amazing possibilities.
tantricengineer t1_jat4mfi wrote
Reply to comment by jawshoeaw in Universal Hydrogen Successfully Completes First Flight of Hydrogen Regional Airliner by tooch_my_gooch
I don't expect these tanks to blow up in flight. I expect them to blow up when most commercial aircraft accidents happen: on the ground / takeoff / landing.