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OT hydrogen cars



 
 
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  #1  
Old December 9th 06, 11:38 PM posted to sci.space.shuttle
Danny Dot[_1_]
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Posts: 481
Default OT hydrogen cars

http://www.msnbc.msn.com/id/16115734/site/newsweek/

Anyone know if these cars are liquid hydrogen or compressed gas H2?

Also, how are they fueled, e.g. where are the fueling stations?

Danny


  #2  
Old December 10th 06, 02:16 AM posted to sci.space.shuttle
Damon Hill[_2_]
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Posts: 55
Default OT hydrogen cars

"Danny Dot" wrote in news:8OHeh.4394$qp1.2747
@tornado.texas.rr.com:

http://www.msnbc.msn.com/id/16115734/site/newsweek/

Anyone know if these cars are liquid hydrogen or compressed gas H2?


I believe there have been examples of both kinds.

Also, how are they fueled, e.g. where are the fueling stations?


'Fill 'er up' on H2 is still a long way off. LH2 fueling is
very unlikely, it's almost certainly got to be compressed gas
to be at all feasible.

My bet is that hydrogen will NEVER be a viable fuel, for a
variety of reasons.

--Damon

  #3  
Old December 10th 06, 07:25 PM posted to sci.space.shuttle
Tim Rogers
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Posts: 22
Default OT hydrogen cars


"Damon Hill" wrote in message
31...
"Danny Dot" wrote in news:8OHeh.4394$qp1.2747
@tornado.texas.rr.com:

http://www.msnbc.msn.com/id/16115734/site/newsweek/

Anyone know if these cars are liquid hydrogen or compressed gas H2?


I believe there have been examples of both kinds.

Also, how are they fueled, e.g. where are the fueling stations?


'Fill 'er up' on H2 is still a long way off. LH2 fueling is
very unlikely, it's almost certainly got to be compressed gas
to be at all feasible.

My bet is that hydrogen will NEVER be a viable fuel, for a
variety of reasons.

Damon's probably right.
Hydrogen burns hotter than gasoline which leads to even higher production of
NOx.
That is, unless there is also a tank for pure O2 as the oxidizer, and by
that point the costs are really going sky-high.

Tim


  #4  
Old December 10th 06, 09:53 PM posted to sci.space.shuttle
Danny Dot[_1_]
external usenet poster
 
Posts: 481
Default OT hydrogen cars


"Tim Rogers" wrote in message
...

"Damon Hill" wrote in message
31...
"Danny Dot" wrote in news:8OHeh.4394$qp1.2747
@tornado.texas.rr.com:

http://www.msnbc.msn.com/id/16115734/site/newsweek/

Anyone know if these cars are liquid hydrogen or compressed gas H2?


I believe there have been examples of both kinds.

Also, how are they fueled, e.g. where are the fueling stations?


'Fill 'er up' on H2 is still a long way off. LH2 fueling is
very unlikely, it's almost certainly got to be compressed gas
to be at all feasible.

My bet is that hydrogen will NEVER be a viable fuel, for a
variety of reasons.

Damon's probably right.
Hydrogen burns hotter than gasoline which leads to even higher production
of NOx.


This is VERY interesting. Air/hydrogen cumbustion produces NOx, which is a
big polluter. Considering the problems with H2 production and storage why
are we even trying. If air/H2 pollutes the program is dead.

How about Air - H2 fuel cells? Do they produce NOx?

Danny Dot

That is, unless there is also a tank for pure O2 as the oxidizer, and by
that point the costs are really going sky-high.

Tim



  #5  
Old December 10th 06, 11:50 PM posted to sci.space.shuttle
Lee Jay
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Posts: 146
Default OT hydrogen cars

Danny Dot wrote:
This is VERY interesting. Air/hydrogen cumbustion produces NOx, which is a
big polluter. Considering the problems with H2 production and storage why
are we even trying.


Because we are going to have to do something other than petroleum
eventually.

If air/H2 pollutes the program is dead.


Fortunately, there are several technical approaches to dealing with
this.

How about Air - H2 fuel cells? Do they produce NOx?


No.

Lee Jay

 




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