Numerical results of falling film absorption with water-ammonia.

Author(s) : WASSENAAR R. H., SEGAL A.


A model was set up for the heat, mass and momentum transport in a falling film absorber with a binary gas phase. Results are given for water-ammonia and countercurrent gas flow. If the ratio of diffusion to convection is not negligible (here for a gas channel smaller than 5 millimeters), absorption is higher with countercurrent gas flow than with cocurrent flow. For larger gas channels the outcomes from a simpler one-component gas phase model are, if the interface boundary conditions are formulated correctly, almost equal to the outcomes from the presented model.


  • Original title: Numerical results of falling film absorption with water-ammonia.
  • Record ID : 1999-3557
  • Languages: English
  • Source: Thermodynamics, heat and mass transfer of refrigeration machines and heat pumps. Proceedings of the EUROTHERM Seminar 59./ Thermodynamique et transferts de chaleur et de masse dans les machines à froid et pompes à chaleur. Comptes rendus du séminaire EUROTHERM 59.
  • Publication date: 1998/07/06
  • Document available for consultation in the library of the IIR headquarters only.


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