Chris,
After I hit the send button, I thought about how a small generator or
gas grill will use tank pressure through a vapor regulator. If this
generator is plumbed that way, there lies a problem that your solution
of heating the tank will work with. Personally I would not plumb a
generator with vapor lines from the tank, especially is it is a long
distance away. Since Gary said this was a large system, I am assuming it
is liquid delivery to the generator.
Gary, is the LP to the generator vapor or liquid from the tank?
Larry
On 4/3/15 10:56 AM, Chris Mason wrote:
Heating the regulator won't help if the propane is not vapourizing.
You would need to heat the tank.
However, you do not need to heat it very much, just enough to let it
vapourize. Think about putting it somewhere with a little heat, or
burying it.
On Fri, Apr 3, 2015 at 1:51 PM, Larry <la...@starlightsolar.com
<mailto:la...@starlightsolar.com>> wrote:
About the carb heat idea...LP is a liquid at -44°F. The liquid
does not combust, it must be vaporized. As the ambient temperature
drops closer to the LP liquid temperature, there would be a
reduction in how fast liquid is vaporizing and therefor a
reduction in volume. What you need in cold weather is enough
volume to maintain at least 11" wc while cranking or running the
engine. You can test the vapor pressure with a manometer while
cranking to verify if this is the problem.
If this is the reason the engine does not run, my thoughts are
that heating the LP regulator would be much more economical from
an energy standpoint, than heating the whole engine block. Perhaps
an insulated enclosure with silicone heaters appropriately
attached would work. They are available in many DC or AC and at
various voltages.
Larry Crutcher
Starlight Solar Power Systems
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