Coal Combustion

- June 19, 2019 at 2:46 pm
  
  Ansan
  Subscriber
  
  I am trying to calculate the volume fraction of coal particle (coal combustion, annulus geometry) but I am not sure if my calculation is correct. As I am using the Dpm injection (combustion particle) model I found that if the volume fraction is more than 12% this model is not suitable for the simulation. Please share the way to calculate the volume fraction of the coal particle.
  
  Thank You
- June 19, 2019 at 3:27 pm
  
  Rob
  Ansys Employee
  
  What volume of coal particles are you injecting? Ie using mass & material density.
- June 19, 2019 at 3:35 pm
  
  Ansan
  Subscriber
  
  Density of the particle is 1400kg/m^3 and the mass flow rate is 0.00067709kg/s.
- June 20, 2019 at 10:23 am
  
  Rob
  Ansys Employee
  
  OK, so that gives a volume. How does that compare to the flow? Both local to the injection and overall?

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