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Fuel Oil N¦ 6 vapor pressure
- Thread starter rkuhn
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What do you need them for wrt how accurate? Neither have a defined or fixed vapor pressure as such. For valve sizing (where the program needs a vp to check for vapor pressure) and for pump NPSHA calculations, I've used 0.1 psia for diesel. For #6 FO, it's also in this range unless it's pretty hot.
The other way is to back estimate it off the flash point. A lot of HCs have a LEL of about 1 to 2%. If the flash point is 150F, that works out to about 0.22 psia vapor pressure (using the average of 1.5 mol%) at the determined flash temperature and then you can adjust it for the temperature you need.
The other way is to back estimate it off the flash point. A lot of HCs have a LEL of about 1 to 2%. If the flash point is 150F, that works out to about 0.22 psia vapor pressure (using the average of 1.5 mol%) at the determined flash temperature and then you can adjust it for the temperature you need.
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