| Message |
And probably a completely new fuel delivery system.
At 100 deg F, the vapor pressure of propane is 188.9 psia or 174.2 psig at sea level (psig is what you pressure gauge reads). This means that for the propane to remain liquid at this temperature it needs to be at this pressure or higher. If the pressure drops below this value, the propane will vaporize. Now as it vaporizes, it will of course cool off so you could very easily end up with a vapor liquid mixture at some point. However, if you have ever opened a propane tank to the atmosphere, you know that all of hte propane gest to vapor very quickly. And it does get quite cold. At atmospheric pressure (14.7 psia) propane boils at -44F so it would have to be this cold to remain liquid. At 42 psig, the boiling point is 21 deg F.I doubt that you would want the propane to vaporize in any part of the fuel system as this could cause vapor lock so the pressure in the system is going to be quite high. I doubt that the existing clamped hose connections can handle this, hence the need for AN or similar fittings. Also, the injector bodies will need to handle this pressure as well. And don't forget the fuel filter. You certainly won't need a pump, however. Using a restriction orifice to control the flow through the injector will impose a pressure drop that could lead to vaporization in the line. Also, the propane will almost certainly vaporize as it passes through the injector tip and goes from 174 psig to 20-30 psig in the cylinder (assuming 6-15 psi boost). The flow through the injector tip will therefore be two phase in nature and the capacity of the tip reduced substancially.
What does NO ELF's mean RECYCLE PAPER - KEEP A TREE FROM BEING PLANTED 208.5 rwhp dynochart I deal in facts and figures, not feelings
|
 |
05:41:00 08/23/06
