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Evaporation and diffusion of ammonia in hydrogen inside a vertical open tube induced by the buoyancy effects of thermal and mass diffusion.

Author(s) : MARTINS G., PEREIRA J. T. V.

Summary

The paper investigates the natural convection flow, heat and mass transfer resulting from the combined effects of thermal and mass diffusion occurring in a vertical open tube with its inside surface covered by a thin liquid ammonia film, immersed in an ambient atmosphere of a gaseous mixture of ammonia hydrogen. One attempts to simulate the conditions of evaporation and diffusion of ammonia in the evaporator of the triple-fluid absorption refrigeration systems, in which no mechanical work input is necessary, and the fluid circulation is maintained because of density variations due to temperature and concentration differences.

Details

  • Original title: Evaporation and diffusion of ammonia in hydrogen inside a vertical open tube induced by the buoyancy effects of thermal and mass diffusion.
  • Record ID : 1996-2229
  • Languages: English
  • Source: Congresso ibero-americano de ar condicionado e refrigeraçao - Congresso brasileiro de refrigeraçao, ventilaçao e condicionamento de ar. III CIAR-V CONBRAVA. Anais./ III CIAR-V CONBRAVA. Proceedings.
  • Publication date: 1995/08/29
  • Document available for consultation in the library of the IIR headquarters only.

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