Training Guide > Combustion Tutorials > 3-Step Eddy Break-Up Tutorial

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3-Step Eddy Break-Up Tutorial

This tutorial models propane combustion in air using a 3-step Eddy Break-up model as detailed below:

(1)
(2)
(3)

The physical properties of the air components (23.3% O2 and 76.7% N2, by mass) and the rest of the reaction components (C3H8 , CO, H2 , CO2 , H2O) are defined as follows:

 

     O2

     N2

   C3H8

     CO

     H2

    CO2

    H2O

Molecular weights

   32.0

  28.008

   44.1

   28.01

   2.018

  44.01

  18.02

Density

                                      Ideal gas

Molecular viscosity

                                 1.716 x 10-5 Pas

Specific heat

   Determined via thermodynamic polynomial functions

Thermal conductivity

                    Determined via the Lewis number


Air enters the combustion chamber through the three air inlets and propane gas enters through the fuel inlet, as indicated in the introductory Combustion Tutorials section. Both air and fuel are at a pressure of 1 bar and a temperature of 293 K at the inlets.

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