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State-of-the-art on Flow and Heat Transfer Characteristics of Supercritical CO2 in Various Channels

Supercritical carbon dioxide (scCO2) is being used in many engineering applications due to the fact that, at supercritical stage, it has unique thermal properties with enhanced heat transfer and flow characteristics. The main purpose of this article is to provide an overview of the published studies...

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Main Authors: Rao, N. Thiwaan, A. N., Oumer, Ummu Kulthum, Jamaludin
Format: Article
Language:English
Published: Elsevier 2016
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/5304/1/State-of-the-art%20on%20Flow%20and%20Heat%20Transfer%20Characteristics%20of%20Supercritical%20CO2%20in%20Various%20Channels.pdf
http://umpir.ump.edu.my/id/eprint/5304/
http://dx.doi.org/10.1016/j.supflu.2016.05.028
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spelling my.ump.umpir.53042018-11-30T02:01:12Z http://umpir.ump.edu.my/id/eprint/5304/ State-of-the-art on Flow and Heat Transfer Characteristics of Supercritical CO2 in Various Channels Rao, N. Thiwaan A. N., Oumer Ummu Kulthum, Jamaludin TJ Mechanical engineering and machinery Supercritical carbon dioxide (scCO2) is being used in many engineering applications due to the fact that, at supercritical stage, it has unique thermal properties with enhanced heat transfer and flow characteristics. The main purpose of this article is to provide an overview of the published studies that are relevant to the flow behavior and heat transfer characteristics of scCO2. The review of available works display that the heat transfer and pressure drop characteristics of heat exchangers using scCO2 as working fluid rely on many parameters such as tube shape and size, mass flux, inlet temperature and pressure, type of process (heating or cooling) etc. Moreover, application of scCO2 in cooling and heating processes and the available empirical correlations for heat transfer are also discussed. Overall it is observed that as the inlet pressure increases, the density and viscosity increases. Thus, when the temperature is higher than the critical temperature the pressure drop decreases with increasing inlet pressure. On the other hand, in heating, the heat transfer rate (View the MathML sourceQ˙) of scCO2 decreases as the inlet temperature increases above the critical temperature for all supercritical pressures. In cooling, View the MathML sourceQ˙ of scCO2 reaches peak value at near critical pressure and decreases as the inlet pressure increases. This review paper can provide information for further investigations on scCO2. Elsevier 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/5304/1/State-of-the-art%20on%20Flow%20and%20Heat%20Transfer%20Characteristics%20of%20Supercritical%20CO2%20in%20Various%20Channels.pdf Rao, N. Thiwaan and A. N., Oumer and Ummu Kulthum, Jamaludin (2016) State-of-the-art on Flow and Heat Transfer Characteristics of Supercritical CO2 in Various Channels. The Journal of Supercritical Fluids, 116. pp. 132-147. ISSN 0896-8446 http://dx.doi.org/10.1016/j.supflu.2016.05.028 doi: 10.1016/j.supflu.2016.05.028
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Rao, N. Thiwaan
A. N., Oumer
Ummu Kulthum, Jamaludin
State-of-the-art on Flow and Heat Transfer Characteristics of Supercritical CO2 in Various Channels
description Supercritical carbon dioxide (scCO2) is being used in many engineering applications due to the fact that, at supercritical stage, it has unique thermal properties with enhanced heat transfer and flow characteristics. The main purpose of this article is to provide an overview of the published studies that are relevant to the flow behavior and heat transfer characteristics of scCO2. The review of available works display that the heat transfer and pressure drop characteristics of heat exchangers using scCO2 as working fluid rely on many parameters such as tube shape and size, mass flux, inlet temperature and pressure, type of process (heating or cooling) etc. Moreover, application of scCO2 in cooling and heating processes and the available empirical correlations for heat transfer are also discussed. Overall it is observed that as the inlet pressure increases, the density and viscosity increases. Thus, when the temperature is higher than the critical temperature the pressure drop decreases with increasing inlet pressure. On the other hand, in heating, the heat transfer rate (View the MathML sourceQ˙) of scCO2 decreases as the inlet temperature increases above the critical temperature for all supercritical pressures. In cooling, View the MathML sourceQ˙ of scCO2 reaches peak value at near critical pressure and decreases as the inlet pressure increases. This review paper can provide information for further investigations on scCO2.
format Article
author Rao, N. Thiwaan
A. N., Oumer
Ummu Kulthum, Jamaludin
author_facet Rao, N. Thiwaan
A. N., Oumer
Ummu Kulthum, Jamaludin
author_sort Rao, N. Thiwaan
title State-of-the-art on Flow and Heat Transfer Characteristics of Supercritical CO2 in Various Channels
title_short State-of-the-art on Flow and Heat Transfer Characteristics of Supercritical CO2 in Various Channels
title_full State-of-the-art on Flow and Heat Transfer Characteristics of Supercritical CO2 in Various Channels
title_fullStr State-of-the-art on Flow and Heat Transfer Characteristics of Supercritical CO2 in Various Channels
title_full_unstemmed State-of-the-art on Flow and Heat Transfer Characteristics of Supercritical CO2 in Various Channels
title_sort state-of-the-art on flow and heat transfer characteristics of supercritical co2 in various channels
publisher Elsevier
publishDate 2016
url http://umpir.ump.edu.my/id/eprint/5304/1/State-of-the-art%20on%20Flow%20and%20Heat%20Transfer%20Characteristics%20of%20Supercritical%20CO2%20in%20Various%20Channels.pdf
http://umpir.ump.edu.my/id/eprint/5304/
http://dx.doi.org/10.1016/j.supflu.2016.05.028
_version_ 1643665173631729664
score 13.211869

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