Hydrogen Powered Regional Aircraft?
#1
Hydrogen Powered Regional Aircraft?
Found this tidbit interesting:
https://www.dlr.de/content/en/articl...t-funding.html
Just food for thought, a CRJ 700/900 generator output is 115VAC @ 40KVA (115 x 40,000 = 4,600,000) = 4.6 megawatts.
but hey, turbo-props are coming back!
https://www.dlr.de/content/en/articl...t-funding.html
Just food for thought, a CRJ 700/900 generator output is 115VAC @ 40KVA (115 x 40,000 = 4,600,000) = 4.6 megawatts.
but hey, turbo-props are coming back!
#2
Gets Weekends Off
Joined APC: Feb 2016
Posts: 602
Found this tidbit interesting:
https://www.dlr.de/content/en/articl...t-funding.html
Just food for thought, a CRJ 700/900 generator output is 115VAC @ 40KVA (115 x 40,000 = 4,600,000) = 4.6 megawatts.
but hey, turbo-props are coming back!
https://www.dlr.de/content/en/articl...t-funding.html
Just food for thought, a CRJ 700/900 generator output is 115VAC @ 40KVA (115 x 40,000 = 4,600,000) = 4.6 megawatts.
but hey, turbo-props are coming back!
#3
Banned
Joined APC: May 2017
Posts: 2,012
Found this tidbit interesting:
https://www.dlr.de/content/en/articl...t-funding.html
Just food for thought, a CRJ 700/900 generator output is 115VAC @ 40KVA (115 x 40,000 = 4,600,000) = 4.6 megawatts.
but hey, turbo-props are coming back!
https://www.dlr.de/content/en/articl...t-funding.html
Just food for thought, a CRJ 700/900 generator output is 115VAC @ 40KVA (115 x 40,000 = 4,600,000) = 4.6 megawatts.
but hey, turbo-props are coming back!
https://www.coresite.com/blog/faq-what-is-kva
40kva would imply roughly 40kw
#4
Line Holder
Joined APC: Aug 2014
Position: BE-1900 Captain
Posts: 66
Found this tidbit interesting:
https://www.dlr.de/content/en/articl...t-funding.html
Just food for thought, a CRJ 700/900 generator output is 115VAC @ 40KVA (115 x 40,000 = 4,600,000) = 4.6 megawatts.
but hey, turbo-props are coming back!
https://www.dlr.de/content/en/articl...t-funding.html
Just food for thought, a CRJ 700/900 generator output is 115VAC @ 40KVA (115 x 40,000 = 4,600,000) = 4.6 megawatts.
but hey, turbo-props are coming back!
#7
Gets Weekends Off
Joined APC: Dec 2017
Posts: 658
#8
Yes, there are no mega-watt class electrical power sources on a CRJ, lol.
The engines themselves would have a power output in the MW range (if you convert thrust to MW).
H2 has some appealing attributes for use in green aircraft.
The problems are the production, storage, and handling. H2 is either an highly explosive pressurized gas, or a highly explosive cryogenic liquid. It is also much less dense than Jet A
On the ground that would require all-new infrastructure. Since H2 is produced from water and electricity it's inherent "greenness" is dependent on the source of the grid power used to make it. You might be able to produce it onsite at the airport, if you had enough space available.
On the plane, you'd need a clean-sheet design to accommodate enough fuel tanks to hold larger quantities of the less-dense H2. H2 is lighter than Jet A (higher specific energy), but that would probably be offset by the weight of larger tanks, the weight of structure to hold the larger tanks, and the associated form drag of said structure. Might be able to mitigate that with a radical fuselage design, like a flying wing (which has it's own logistics issues).
The engines themselves would have a power output in the MW range (if you convert thrust to MW).
H2 has some appealing attributes for use in green aircraft.
The problems are the production, storage, and handling. H2 is either an highly explosive pressurized gas, or a highly explosive cryogenic liquid. It is also much less dense than Jet A
On the ground that would require all-new infrastructure. Since H2 is produced from water and electricity it's inherent "greenness" is dependent on the source of the grid power used to make it. You might be able to produce it onsite at the airport, if you had enough space available.
On the plane, you'd need a clean-sheet design to accommodate enough fuel tanks to hold larger quantities of the less-dense H2. H2 is lighter than Jet A (higher specific energy), but that would probably be offset by the weight of larger tanks, the weight of structure to hold the larger tanks, and the associated form drag of said structure. Might be able to mitigate that with a radical fuselage design, like a flying wing (which has it's own logistics issues).
#10
While my dreams of becoming a Electrical Engineer are shot. I wanted to put forth the notion that maybe we’re barking up the wrong tree. Sure H2 has 3 times the energy on a per mass (weight) unit. However it’s the volume that’s the issue. So in the mean time how about developing hybrid aircraft, at least until the H2 storage and production method & technology mature.
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