APU - Alternative fuel?
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Electric?
The whole purpose of APUs is to generate electricity independently of ground aids. Air bleeds to give conditioned air is secondary. Thus, using an APU that is fuelled seperately would require a seperate fuel tank, adding weight and complexity.
So, basically, if APUs didn't run from the main fuel source, they wouldn't be worth considering. If you look at an APU, and then at a GPu unit, you'll see the logic. (give or take the trailer chassis attached!)
The whole purpose of APUs is to generate electricity independently of ground aids. Air bleeds to give conditioned air is secondary. Thus, using an APU that is fuelled seperately would require a seperate fuel tank, adding weight and complexity.
So, basically, if APUs didn't run from the main fuel source, they wouldn't be worth considering. If you look at an APU, and then at a GPu unit, you'll see the logic. (give or take the trailer chassis attached!)
(especially after a night IBZ)......
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Join Date: May 2007
Location: LPPT
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Hi
For the ones kidding about it...
I just found this interesting article about fuel cells APU's:
http://www.boeing.com/news/frontiers...y/ts_sf7a.html
Happy new year
7triple
For the ones kidding about it...
I just found this interesting article about fuel cells APU's:
http://www.boeing.com/news/frontiers...y/ts_sf7a.html
Happy new year
7triple
