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Fuel Starvation?
On Jul 24, 11:35*am, HK wrote:
Richard Casady wrote: On Mon, 21 Jul 2008 14:26:06 -0400, Gene Kearns wrote: If not, there would be people wanting to sue them over unsuccessfully using propane (or acetylene, or hydrogen) in a boat. Propane mixes perfectly with air, with great ease, and has an octane rating of 100. Other than that. If there is an ideal fuel, propane is it. Casady The only problem I see with LPG as a fuel for boat engines is that it is heavier than air and settles. If there is a leak in the tank or hoses, and the tank is below deck, the bilges are going to fill up with a pretty explosive gas. This is less of a problem on land vehicles, because there are more ways for "escaping" LPG to vent to the open air. Also, wouldn't the boat engine LPG fuel tank have to be a pressurized vessel? Yet another system on a boat that would have to be watched carefully. We have a 500-gallon LPG tank buried in our backyard. Its presence used to make me a bit nervous. Propane turns to a liquid at a reasonable pressure and typically vapor supply pressures are not high at all. Gasoline is also heavier than air in both liquid and vapor states so boats have the same problem with either. Main issue is that there is not a robust supply system in place to provide propane as a vehicle fuel. And a gallon of propane only has 75% of the energy that a gallon of gas has so it would need to be a lot cheaper per gallon. |
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