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Automotive Combution, energy and pressure relation

  1. May 6, 2015 #1
    Hello guys,

    I'm currently working on a car simulation just for fun, but I'm stuck.....

    The force to move a car is generated by burning fuel ( to be more percise, diesel or gasolin).
    But there are more variables:
    Pressure (i know this because of turbos and such)
    amount of fuel
    amount of air (or O2)

    is there a formula to calculate the force created, or released energy?
    If there is, can you calculate the temperature of the engine too?

    Thanks for reading and I hope you can answer some of my questions :)
  2. jcsd
  3. May 6, 2015 #2
    Your question is very interesting! And there are many was to come apon a solution. first what is the normal tempurature of the engine when it is idel (i english good) next, fint the increase in tempurature, this means taking temp of engine and making a inequality based on increase in fuel subtracted by the amount of h2o present in the engine.
  4. May 6, 2015 #3
    i can't really follow you.
    Let's taka a theoretical 100 degree Celcius is the idle temperature.

    I just realise my whole idea of how the engine works is wrong, the amount of fuel isn't fixed (like i thought) it's controled by the boardcomputer. I'll have to find that out too.. The airflow is regulated by the Gaspadel (correct me if I'm wrong). If this all is true than I have to many variabels and not enough data to do any calculations..
  5. May 7, 2015 #4
    but remember that some operations do cancel each other our, so start with the minimum amount of fuel as related to temp
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