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

Icksoo Kyung, Keith E. Herold, Yong Tae Kang

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

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
Volume30
Issue number4
DOIs
Publication statusPublished - 2007 Jun 1
Externally publishedYes

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diffusivity
heat transfer coefficient
Heat transfer coefficients
Hot Temperature
Steam
water vapor
Water vapor
droplets

Keywords

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

ASJC Scopus subject areas

  • Food Science
  • Mechanical Engineering

Cite this

Experimental verification of H2O/LiBr absorber bundle performance with smooth horizontal tubes. / Kyung, Icksoo; Herold, Keith E.; Kang, Yong Tae.

In: International Journal of Refrigeration, Vol. 30, No. 4, 01.06.2007, p. 582-590.

Research output: Contribution to journalArticle

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