Fluids

Fluids

Heat and mass transfer

    • Yi Chen Tan
      Subscriber

      Hi really urgent help here for my Final Year Project.

      I am currently doing a simple simulation on Ansys that is supposedly to mimick a heat rejection system. What i have is an air plate in between 2 plates of water, which looks something like iin the picture. What is happening is that when i changed the air inlet humidity ratio, the air outlet humidity ratio changes, but the temperature still stays the same as other humidity ratio inlet condition. For example, when my air inlet temperature is at 34°C and inlet humidity ratio is 10g/kg, the outlet ratio is 0.0218 and air outlet temperature is 34.9°C. but when my air inlet temperature is at 34°C and inlet humidity ratio is 20g/kg, my outlet ratio is 0.027, but the temperature is still 34.9°C. Does anyone has any idea what is wrong? or is there someone that can help me with my model?

    • Swathi V. V.
      Ansys Employee

      Hi Yi,

      What is the partial pressure of water in moist air at outlet? Humidy ratio is a direct function of pressure. Please check that.

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