Mass transfer enhancement during CO2 absorption process in methanol/Al2O3 nanofluids

Jae Hyung Kim; Chung Woo Jung; Yong Tae Kang

doi:10.1016/j.ijheatmasstransfer.2014.04.057

Mass transfer enhancement during CO₂ absorption process in methanol/Al₂O₃ nanofluids

Jae Hyung Kim, Chung Woo Jung, Yong Tae Kang

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

111 Citations (Scopus)

Abstract

The objectives of this paper are to analyze the mass transfer characteristics during CO₂ bubble absorption and diffusion processes in nanofluid with Al₂O₃ nanoparticles. To analyze the effect of the nanoparticles on the mass transfer enhancement, the surface tension and viscosity of the nanofluids are measured. It is found that Al ₂O₃ nanoparticles enhance CO₂ absorption rate and increase the viscosity as high as 11% at 0.01 vol% but the surface tension keeps almost constant. The images of bubble absorption and diffusion are captured by a high-speed camera with the shadow-graph method. It is found that the mass transfer coefficient is enhanced up to 26% at 0.01 vol% compared with pure methanol.

Original language	English
Pages (from-to)	484-491
Number of pages	8
Journal	International Journal of Heat and Mass Transfer
Volume	76
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2014.04.057
Publication status	Published - 2014 Sept

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation (NRF) South Korea Grant (No. 2010-0029120 ) funded by Korean Government (MEST).

Keywords

Bubble motion
Diffusion
Mass transfer

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

Access to Document

10.1016/j.ijheatmasstransfer.2014.04.057

Cite this

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title = "Mass transfer enhancement during CO2 absorption process in methanol/Al2O3 nanofluids",

abstract = "The objectives of this paper are to analyze the mass transfer characteristics during CO2 bubble absorption and diffusion processes in nanofluid with Al2O3 nanoparticles. To analyze the effect of the nanoparticles on the mass transfer enhancement, the surface tension and viscosity of the nanofluids are measured. It is found that Al 2O3 nanoparticles enhance CO2 absorption rate and increase the viscosity as high as 11% at 0.01 vol% but the surface tension keeps almost constant. The images of bubble absorption and diffusion are captured by a high-speed camera with the shadow-graph method. It is found that the mass transfer coefficient is enhanced up to 26% at 0.01 vol% compared with pure methanol.",

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author = "Kim, {Jae Hyung} and Jung, {Chung Woo} and Kang, {Yong Tae}",

note = "Funding Information: This work was supported by the National Research Foundation (NRF) South Korea Grant (No. 2010-0029120 ) funded by Korean Government (MEST). ",

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AU - Kim, Jae Hyung

AU - Jung, Chung Woo

AU - Kang, Yong Tae

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AB - The objectives of this paper are to analyze the mass transfer characteristics during CO2 bubble absorption and diffusion processes in nanofluid with Al2O3 nanoparticles. To analyze the effect of the nanoparticles on the mass transfer enhancement, the surface tension and viscosity of the nanofluids are measured. It is found that Al 2O3 nanoparticles enhance CO2 absorption rate and increase the viscosity as high as 11% at 0.01 vol% but the surface tension keeps almost constant. The images of bubble absorption and diffusion are captured by a high-speed camera with the shadow-graph method. It is found that the mass transfer coefficient is enhanced up to 26% at 0.01 vol% compared with pure methanol.

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KW - Mass transfer

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