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Transient behavior of a vertical plate evaporator for ammonia.

Author(s) : GAYRILIUC R., HERA D., ICHIIN M.

Summary

The paper analyses the transient behavior of a vertical plate evaporator for ammonia, this piece of equipment belonging to a refrigeration machine or heat pump. The evaporator consists of vertical wavy metal plates, tighten together by welding points. The liquid ammonia is fed at the upper side of the plates and flows film-wise downwards under the force of gravity. The secondary heating fluid is a thermal oil and flows upwards (in counter-current to the refrigerant) at full section. The mathematical model of this heat exchanger takes into account the fact that dry boiling may occur, so that the equations for normal elements, for the last wetted element and for the dry elements have particular forms. Inlet and outlet parameters are defined. Graphic correlations are given.

Details

  • Original title: Transient behavior of a vertical plate evaporator for ammonia.
  • Record ID : 1999-3446
  • Languages: English
  • Source: CLIMA 2000, Brussels 1997, August 30 to September 2, Congress Palace.
  • Publication date: 1997/08
  • Document available for consultation in the library of the IIR headquarters only.

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