Share

IIR document

Numerical study of falling film and bubble absorbers for small capacity NH3-H2O air-cooled absorption systems.

Author(s) : CASTRO J., OLIET C., FARNÓS J., et al.

Summary

Small capacity, air-cooled NH3-H2O absorption systems are becoming more attractive in applications where the input energy can be obtained for free, e.g. solar energy, exhaust gases of engines, etc., due to the increasing price of the primary energy. In this work, an air-cooled absorption refrigeration system for transport application is being studied. As it is well known, the absorber is the most critical heat exchanger due to its low heat and mass transfer coefficients. In this work, two types of suitable absorber are modelled: falling film flow and bubble flow. A review of literature has been done, and a validation has been performed comparing the results of the models with the published results. The nominal working conditions of the absorber have been obtained from a thermodynamic simulation of the whole cycle. The performance of the two types of absorbers is compared for this application.

Available documents

Format PDF

Pages: ICR07-E1-1085

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Numerical study of falling film and bubble absorbers for small capacity NH3-H2O air-cooled absorption systems.
  • Record ID : 2008-0629
  • Languages: English
  • Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Publication date: 2007/08/21

Links


See other articles from the proceedings (839)
See the conference proceedings

Indexing