Re: Application-Specific Adjustments

Off Topic » in reply to Millennium Cell's Automotive Hydrogen Fuel

Success_Machine — 2/8/2002 7:32:23 PM (archived)

However, gasoline engines get about 20% efficiency, and fuel cell cars get 66% efficiency. So adjusting the numbers for the powerplant-adjusted specific energy we get:

Liquid fuels:
1. Liquid hydrogen = 1.59 MJ/kg (0.4224 MJ/gal) fuel cell
2. NaBH4 solution = 1.69 MJ/kg (6.264 MJ/gal) fuel cell
3. Gasoline = 9.5 MJ/kg (78.496 MJ/gal) internal combusion engine

So that brings them closer, but still no cigar.

The whole thread (9 posts)

Millennium Cell's Automotive Hydrogen Fuel - Success_Machine - 2/8/2002 7:11:44 PM
- Re: Application-Specific Adjustments - Success_Machine - 2/8/2002 7:32:23 PM
  - Re: Application-Specific Adjustments - Success_Machine - 2/8/2002 9:05:51 AM
    - Re: Corrections. I've redone my calculations very carefully this time - Success_Machine - 2/9/2002 4:24:08 PM
      - Re: One more correction. Energy per volume for liquid hydrogen. - Success_Machine - 2/9/2002 4:45:06 PM
        
        Re: Still an error. Energy per volume for liquid hydrogen. - Success_Machine - 2/9/2002 4:47:04 PM
        
        "A Beautiful Mind" (n/t) (n/t) - RobVG - 2/9/2002 1:39:57 PM
        
        Re: Very funny. Ha ha. - Success_Machine - 2/10/2002 11:29:43 AM
        
        Hmmm..... - RobVG - 2/10/2002 5:31:21 PM

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