1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Fuel evaporation in a tank - Pressure calculation

  1. Apr 14, 2015 #1
    Hello everybody,

    I have the following problem:

    I have a fuel tank, with a liquid phase (the fuel) and gas phase at To and P0, where T is temperature and P pressure. I assume that the gas phase at the instant t=t0 is air.
    (Is this assumption correct?)

    The temperature of the liquid phase varies over the time with a certain profile from T0 to Tend.
    The fuel due to the increasing of the temperature evaporates with a certain law (most probably unknown).

    How can I calculate the equilibrium pressure between the two phases according to the temperature changes over the time?

    Thanks in advance,
  2. jcsd
  3. Apr 14, 2015 #2


    User Avatar

    Staff: Mentor

    Welcome to PF!

    I would think you wouldn't calculate it but rather just look up the vapor pressure in a table of the fuel's properties.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Fuel evaporation tank Date
I Liquid boiling and Evaporation Nov 27, 2017
B Fuel with Static Air in a Jet engine May 11, 2017
I Heat Transfer Mar 31, 2017
B HHO Easy Recombination to get electricity Mar 29, 2017