Radiation Model for Rolling Stock HVAC

- June 8, 2020 at 2:22 am
  
  bervyngoh
  Subscriber
  
  Hello everyone,
  
  I am currently in the midst of studying the interior air-flow and temperature profile of a train using ANSYS Fluent and while I have the boundary conditions for the fluid flow:
  
  1. velocity-inlets: for cold air
  2. pressure-outlets: for open doors
  3. mass-flow-outlets: for return air,
  
  I am not sure which radiation model to use in order to have a better temperature analysis. I would like to model the heat load from solar radiation, heat generated from equipment in the the cabin/passengers as well as the ambient air temperature outside of the train.
  
  How can I include these effects into my calculation to make my model more realistic? I have the following values with units in brackets:
  
  Outside temperature/humidity (degrees Celcius)
  passenger sensible heat load/latent head load (Watts/Passenger)
  transfer heat load through car body (W/K)
  Total Equipment heat load (W)
  Solar Radiation Heat Load (W/m^2)
  
  Thank you for your time and help!

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