Experimental verification of H2O/LiBr absorber bundle performance with smooth horizontal tubes

Icksoo Kyung, Keith E. Herold, Yong Tae Kang

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


A model for absorption of water vapor into LiBr flowing over horizontal smooth tubes is developed to predict the absorption performance of a tube bundle. The performance of a horizontal smooth tube absorber is calculated and compared with experimental data. The calculation results of absorber performance are found to vary considerably depending on mass diffusivity. The literature value of mass diffusivity, of the order of 10-9 m2 s-1, causes the model to deviate from the experimental results especially for solution side heat transfer coefficient. A parametric study varying mass diffusivity shows that a value of 1.0 × 10-10 m2 s-1 gives a better agreement with the experimental results. The effects of absorber capacity, heat transfer coefficient of droplets ejected from the system (slinging) and number of tubes in the bundle on the absorption performance are also discussed.

Original languageEnglish
Pages (from-to)582-590
Number of pages9
JournalInternational Journal of Refrigeration
Issue number4
Publication statusPublished - 2007 Jun
Externally publishedYes


  • Absorber
  • Absorption system
  • Bundle
  • Calculation
  • Experiment
  • Lithium bromide
  • Modelling
  • Refrigeration
  • Smooth tube
  • Water

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering


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