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What is vapor pressure of #1 Diesel fuel

What is vapor pressure of #1 Diesel fuel

What is vapor pressure of #1 Diesel fuel

(OP)
Anyone know the vapor pressure of #1 diesel fuel at
ambient temperature.  I am thinking it is near a perfect vacuum...

If so, then it would "add" atmospheric pressure for NPSH available?

RE: What is vapor pressure of #1 Diesel fuel

Number 1 fuel oil is essentially kerosine.

RE: What is vapor pressure of #1 Diesel fuel

ProcEng2:

The U.S. EPA's publication "AP 42, Compilation of Air Pollutant Emission Factors", Chapter 7, Table 7.1-2 gives the following True Vapor Pressures for Kerosene (which is essentially #1 Diesel:

40 deg F = 0.0041 psia
60 deg F = 0.0085 psia
80 deg F = 0.015 psia
100 deg F = 0.029 psia

AP 42 can be found online at http://www.epa.gov/ttn/chief/ap42/index.html

Milton Beychok
(Visit me at www.air-dispersion.com)
.

RE: What is vapor pressure of #1 Diesel fuel

See if you can locate an MSDS sheet for the actual material in question- they quite often show that on there, and saves you wondering whether "essentially" is close enough.

RE: What is vapor pressure of #1 Diesel fuel


The value given by BigInch seems to be on the high side and is very similar to that of water at 80oF. JStephen's advice is logical.

RE: What is vapor pressure of #1 Diesel fuel


It's better but still on the high side for kerosine-type fuels with Initial Boiling Points ≥280oF.

RE: What is vapor pressure of #1 Diesel fuel

That's the value I've got and I'm sticking to it.  I like it better on the conservative side of things.

http://virtualpipeline.spaces.msn.com

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