View Single Post
  #17  
Old August 19th 06, 12:22 AM posted to sci.astro,sci.physics,sci.chem,sci.energy,sci.energy.hydrogen
Tony Wesley
external usenet poster
 
Posts: 2
Default Fuel cells producing *liquid* water?


Robert Clark wrote:
I meant using cryogenic liquid hydrogen would make it easy to liquify
the water.
As noted by Cowan, 4 bar might be too high for a lightweight system. I
got this number from high performance fuel cells. They would work at 1
bar just not as efficiently.


Er, Bob, just how big is the H2 tank going to be?