Survey Question: Pool fire from LPG?

[don1980]

For process equipment containing flammable liquified gases, no heavier than say propane or propylene, what is your assessment of the credibility of a pool fire:

A) Always credible.
B) Always not credible.
C) Case dependent, but typically credible.
D) Case dependent, but typically not credible.

 

[Ashereng]

Propane's boiling pt is -42 °C at 101 kPaa (or atmospheric pressure).

Propane's vapour pressure at 40 °C is 1370 kPaa.

So, in Alaska during the coldest of winter, at - 70 °C, a pool is typically credible.

In Brasil, along the equator, typically not so credible (unless the pressure increases, say at the bottom of a very deep hole, then maybe?)

"Do not worry about your problems with mathematics, I assure you mine are far greater."
Albert Einstein
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?

 

[don1980]

I should have clarified this question.....let's assume that we're talking about geographic areas where the lowest temperature is well above the NBP of this LPG.

 

[Ashereng]

My answer still stands.

Whether a pool fire is credible depends on temperature and pressure, and the conditions of your particular case.

"Do not worry about your problems with mathematics, I assure you mine are far greater."
Albert Einstein
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?

 

[JLSeagull]

D) Case dependent, but typically not credible.
C4's are a lot more likely to form a pool. C3's ae a BLEVE concern. At low lattitudes with warm climates propane is not likely to hang around long in the liquid phase.

 

[dcasto]

The worst case scenerio was the Brenham Texas fire explosion, there was no pool fire. You should be able to find this incident and a review.