Comparisons of Nu correlations for H2O/LiBr solution in plate heat exchanger for triple effect absorption chiller application

Joo Young Song, Jae Won Lee, Yong Tae Kang

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


In this study, heat transfer characteristics of single-phase Water/Lithium Bromide (H2O/LiBr) solution in a plate heat exchanger (PHE) is evaluated for absorption chiller applications. The plate heat exchanger is arranged with single-pass and counter flow, and the chevron angle of corrugated plate is a high theta of 78.5°. The H2O/LiBr solution is used as working fluid with wide mass concentration ranging between 52.40% and 64.92%, Reynolds number ranging between 27.29 and 255.1 and Prandtl number ranging between 4.59 and 19.26. All of experiments are conducted within ±10% energy balance error range. It is found that the convective heat transfer coefficients range from 0.68 kW/m2·K to 2.92 kW/m2·K. Based on the experimental data, empirical Nusselt number correlation of the H2O/LiBr solution in the 78.5° plate heat exchanger is developed within ±20% error range. The Nusselt number correlation of the present study is applicable to predict the heat transfer characteristics of the H2O/LiBr solution with a wide range of LiBr concentration for triple effect absorption chiller applications.

Original languageEnglish
Pages (from-to)852-860
Number of pages9
Publication statusPublished - 2019 Apr 1


  • Absorption cycle
  • HO/LiBr solution
  • Heat transfer coefficient
  • LiBr concentration
  • Plate heat exchanger

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Modelling and Simulation
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Pollution
  • Energy(all)
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Management, Monitoring, Policy and Law
  • Electrical and Electronic Engineering


Dive into the research topics of 'Comparisons of Nu correlations for H2O/LiBr solution in plate heat exchanger for triple effect absorption chiller application'. Together they form a unique fingerprint.

Cite this