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Re: LPG to NG
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Posted by buickanddeere on February 06, 2004 at 11:19:30 from (64.10.41.144):
In Reply to: LPG to NG posted by J Willis on February 05, 2004 at 22:09:03:
LP runs at 7 inches pressure after the regulator and natural gas 13 inches pressure, if memory serves correctly.
Methane (natural gas) has even a higher octane rating than LP. That's how some stationary "diesel's" use a "carb" and mix natural gas and air. Pilot injection is used when just enough diesel that the engine would normally idle on, is injected into the combustion chamber. The burning diesel ignites the natural gas and the engine runs fine. There is a reduction of power but the engine runs clean and cheap.
As far as power a spark ignition LP or natural gas that inject vapour are about equal. There are some experiments where a high pressure injector is placed in the intake port next to the intake valve. To inject liquid LP or natural gas vapour.
There are home fill units for filling compressed natural gas vehicles/equipment overnight. Fuel Maker is the name and are in Mississauga or Etobicoke.
Compressed natural gas is fine except it's bulkier to carry than LP diesel or gasoline. Takes some Kw's of electricity to compressed the gas. The stuff is cheap enough to still be worth using.
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