Hi Craig.

18-Nov-02 12:07:33, Craig Healy wrote to Alexander Bilan

 CH>  valves, etc. Natural gas is not quite
 CH> as good, though (eventually) -> CH> being able to fill at home
 CH> would be neat.

 AB> They do offer the home filling stations here. Their only
 AB> problem is it takes all night to refill your vehicle. (Compared
 AB> to typical 5-10 minutes at a "normal" fill station).

 CH> I wonder just what the problem is?  Small compressor?  Limited
 CH> capacity from the street?  I wonder if there's any way to put in a
 CH> high-capacity meter/regulator in a residential application?

because of the high pressure involved it takes a long time to fill. (like
scuba tanks which use similar hardware)

Last time I saw one Natural gas filling stations use banked cylinders of
already compresses NG
to provide the fill, I expect that's too much expense for a home filling
station when a compressor will do since the vehicle will usuallly be parked
for a while anyway.

 CH> -> I don't see to many issues with NG. Seems its less prone to
 CH> detonation -> than propane.

 CH> Less power.  I've looked at generator ratings, for example.  A
 CH> 10kw gen set is derated to maybe 8kw on natural gas.

Yeah, the gas takes up more volumrn for the same energy content.
I guess a turbo or supercharger could boost the output a bit without
streesing the engine too much (since the fuel is weaker).

  -=> Bye <=-

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