Re: Hydrogen Cars, Trucks, and Buses Are the Answer Indeed

On Dec 17, 9:55 am, Eeyore <rabbitsfriendsandrelati...@xxxxxxxxxxx>
wrote:
Willie.Moo...@xxxxxxxxx wrote:
In the 1980s steel manufacturers created new alloy steels that were
specifically formulated to resist embrittlement as stainless steels
resist corrosion. Both Lockheed and Boeing explored the possibilty of
using thin sheets of this stuff to make liquid hydrogen fuel tanks for
airliners and estimated costs of supplying those airliners with
hydrogen.

And of course hydrogen is completely unsuitable as an aircraft fuel since its VOLUME is some
FOUR times that of kersosene.

Graham

For fuels that you have to LIFT through the AIR its energy per unit
weight, not energy per unit volume that is the issue. Which is why
hydrogen is flying today on NASA's solar powered aircraft and hydrogen
is a sound candidate for aircraft.

http://www.boeing.com/commercial/environment/pdf/alt_fuels.pdf
http://ntl.bts.gov/lib/000/500/572/800108.pdf
http://www.physorg.com/news99758266.html
http://www7.nationalacademies.org/bees/John_Heywood_Reducing_Oil_Demand.pdf
http://www.nasa.gov/centers/langley/images/content/70059main_2003-81-01.jpg


In fact, blended wing bodies like the one shown in the jpg here,
provide 30% fuel efficiency improvements over existing airliners even
when using hydrogen.
.

Quantcast