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A study on numerical simulations and experiments for mass transfer in bubble mode absorber of ammonia and water.

Author(s) : LEE J. C., LEE K. B., CHUN B. H., et al.

Type of article: Article, IJR article

Summary

An absorber is a major component in absorption refrigeration systems, and its performance greatly affects the overall system performance. In this study, both the numerical and experimental analyses in the absorption process of a bubble mode absorber were performed. Gas was injected into the bottom of the absorber at a constant solution flow rate. The region of gas absorption was estimated by both numerical and experimental analyses. A higher gas flow rate increases the region of gas absorption. As the temperature and concentration of the input solution decrease, the region of gas absorption decreases. In addition, the absorption performance of the counter-current flow was superior to that of co-current. Mathematical modelling equations were derived from the material balance for the gas and liquid phases based on neglecting the heat and mass transfer of water from liquid to gas phase. A comparison of the model simulation and experimental results showed similar values. This means that this numerical model can be applied for design of a bubble mode absorber.

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Pages: 551-558

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Details

  • Original title: A study on numerical simulations and experiments for mass transfer in bubble mode absorber of ammonia and water.
  • Record ID : 2003-2174
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 26 - n. 5
  • Publication date: 2003/08

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