Model Validation for Flow and Heat Transfer Characteristics of Supercritical CO2 in Mini-Channels

Carbon dioxide (CO2) at supercritical phase is being used recently in Heating, Ventilation, Air Conditioning and Refrigeration (HVAC&R) industries due to its special thermal properties of supercritical CO2, which leads to better performance of heat transfer and flow characteristics. Therefore, t...

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Main Authors:	N. T., Rao, A. N., Oumer, Ummu Kulthum, Jamaludin, Hassan, Ibrahim, F., Basrawi, A. Y., Adam
Format:	Article
Language:	English English
Published:	Asian Research Publishing Network (ARPN) 2017
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/13795/ http://umpir.ump.edu.my/id/eprint/13795/ http://umpir.ump.edu.my/id/eprint/13795/1/fkm-2016-rao-Model%20Validation%20for%20Flow%20and%20Heat%20Transfer%20Characteristics.pdf http://umpir.ump.edu.my/id/eprint/13795/13/fkm-2017-oumer-Model%20Validation%20for%20Flow%20and%20Heat%20Transfer.pdf

id	ump-13795
recordtype	eprints
spelling	ump-137952018-11-30T01:58:48Z http://umpir.ump.edu.my/id/eprint/13795/ Model Validation for Flow and Heat Transfer Characteristics of Supercritical CO2 in Mini-Channels N. T., Rao A. N., Oumer Ummu Kulthum, Jamaludin Hassan, Ibrahim F., Basrawi A. Y., Adam TJ Mechanical engineering and machinery Carbon dioxide (CO2) at supercritical phase is being used recently in Heating, Ventilation, Air Conditioning and Refrigeration (HVAC&R) industries due to its special thermal properties of supercritical CO2, which leads to better performance of heat transfer and flow characteristics. Therefore, the main purpose of this study is to develop flow and heat transfer CFD models and validate the models by comparing with previous studies from literature. For the simulation, the CO2 flow was assumed to be incompressible, turbulent, non-isothermal and Newtonian. The numerical results compared with the experimental data obtained from S.M. Liao et. al. [1]. The experimental data consisted of three different cases with different inlet pressure (P), inlet temperature (Tin) and tube diameter (d). All the maximum and minimum temperature percentage differences for all three cases are in a small values. Moreover, the surface area, A of the tube is inversely proportional to heat transfer coefficient (h). Besides, the pressure drop (ΔP) for all three cases increased together with h when the tube diameters decreased. The numerical results were in good agreement with experimental results for temperature distributions. The CFD model is validated. Asian Research Publishing Network (ARPN) 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/13795/1/fkm-2016-rao-Model%20Validation%20for%20Flow%20and%20Heat%20Transfer%20Characteristics.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/13795/13/fkm-2017-oumer-Model%20Validation%20for%20Flow%20and%20Heat%20Transfer.pdf N. T., Rao and A. N., Oumer and Ummu Kulthum, Jamaludin and Hassan, Ibrahim and F., Basrawi and A. Y., Adam (2017) Model Validation for Flow and Heat Transfer Characteristics of Supercritical CO2 in Mini-Channels. ARPN Journal of Engineering and Applied Sciences, 12 (14). pp. 4312-4317. ISSN 1819-6608 http://www.arpnjournals.org/jeas/research_papers/rp_2017/jeas_0717_6211.pdf
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery N. T., Rao A. N., Oumer Ummu Kulthum, Jamaludin Hassan, Ibrahim F., Basrawi A. Y., Adam Model Validation for Flow and Heat Transfer Characteristics of Supercritical CO2 in Mini-Channels
description	Carbon dioxide (CO2) at supercritical phase is being used recently in Heating, Ventilation, Air Conditioning and Refrigeration (HVAC&R) industries due to its special thermal properties of supercritical CO2, which leads to better performance of heat transfer and flow characteristics. Therefore, the main purpose of this study is to develop flow and heat transfer CFD models and validate the models by comparing with previous studies from literature. For the simulation, the CO2 flow was assumed to be incompressible, turbulent, non-isothermal and Newtonian. The numerical results compared with the experimental data obtained from S.M. Liao et. al. [1]. The experimental data consisted of three different cases with different inlet pressure (P), inlet temperature (Tin) and tube diameter (d). All the maximum and minimum temperature percentage differences for all three cases are in a small values. Moreover, the surface area, A of the tube is inversely proportional to heat transfer coefficient (h). Besides, the pressure drop (ΔP) for all three cases increased together with h when the tube diameters decreased. The numerical results were in good agreement with experimental results for temperature distributions. The CFD model is validated.
format	Article
author	N. T., Rao A. N., Oumer Ummu Kulthum, Jamaludin Hassan, Ibrahim F., Basrawi A. Y., Adam
author_facet	N. T., Rao A. N., Oumer Ummu Kulthum, Jamaludin Hassan, Ibrahim F., Basrawi A. Y., Adam
author_sort	N. T., Rao
title	Model Validation for Flow and Heat Transfer Characteristics of Supercritical CO2 in Mini-Channels
title_short	Model Validation for Flow and Heat Transfer Characteristics of Supercritical CO2 in Mini-Channels
title_full	Model Validation for Flow and Heat Transfer Characteristics of Supercritical CO2 in Mini-Channels
title_fullStr	Model Validation for Flow and Heat Transfer Characteristics of Supercritical CO2 in Mini-Channels
title_full_unstemmed	Model Validation for Flow and Heat Transfer Characteristics of Supercritical CO2 in Mini-Channels
title_sort	model validation for flow and heat transfer characteristics of supercritical co2 in mini-channels
publisher	Asian Research Publishing Network (ARPN)
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/13795/ http://umpir.ump.edu.my/id/eprint/13795/ http://umpir.ump.edu.my/id/eprint/13795/1/fkm-2016-rao-Model%20Validation%20for%20Flow%20and%20Heat%20Transfer%20Characteristics.pdf http://umpir.ump.edu.my/id/eprint/13795/13/fkm-2017-oumer-Model%20Validation%20for%20Flow%20and%20Heat%20Transfer.pdf
first_indexed	2023-09-18T22:16:48Z
last_indexed	2023-09-18T22:16:48Z
_version_	1777415392038223872

Model Validation for Flow and Heat Transfer Characteristics of Supercritical CO2 in Mini-Channels

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