CO2 bubble absorption enhancement in methanol-based nanofluids

Jae Won Lee, Jung Yeul Jung, Soon Geul Lee, Yong Tae Kang

Research output: Contribution to journalArticlepeer-review

99 Citations (Scopus)


In this study, the nanoparticles (i.e. SiO2 and Al 2O3 nanoparticles) and methanol are combined into SiO 2/methanol and Al2O3/methanol nanofluids to enhance the CO2 absorption rate of the base fluid (methanol). The absorption experiments are performed in the bubble type absorber system equipped with mass flow controller (MFC), mass flow meter (MFM) and silica gel (which can remove the methanol vapor existing in the outlet gases). The parametric analysis on the effects of the particle species and concentrations on CO 2 bubble absorption rate is carried out. The particle concentration ranges from 0.005 to 0.5 vol%. It is found that the CO2 absorption rate is enhanced up to 4.5% at 0.01 vol% of Al2O3/methanol nanofluids at 20 °C, and 5.6% at 0.01 vol% of SiO2/methanol nanofluids at -20 °C, respectively.

Original languageEnglish
Pages (from-to)1727-1733
Number of pages7
JournalInternational Journal of Refrigeration
Issue number8
Publication statusPublished - 2011 Dec
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation (NRF) grant (No. 20100029120 ).


  • Absorption
  • Bubble
  • Carbon dioxide
  • Enhancement
  • Methanol
  • Particle

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering


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