Numerical Simulation on Flow and Heat Transfer Characteristics of Supercritical Fluids in Mini-Channels

This paper investigated the flow and heat transfer characteristics of supercritical carbon dioxide (SC-CO2) and supercritical water (SC-H2O) in horizontal micro-channels using a CFD approach. Model of a straight circular pipe of stainless steel with internal and external radii of , respectively, an...

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Main Authors:	A. N., Oumer, N. T., Rao, F., Basrawi, Hassan, Ibrahim
Format:	Article
Language:	English English
Published:	TAF Publishing 2016
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/6866/ http://umpir.ump.edu.my/id/eprint/6866/ http://umpir.ump.edu.my/id/eprint/6866/ http://umpir.ump.edu.my/id/eprint/6866/1/Numerical%20Simulation%20on%20Flow%20and%20Heat%20Transfer%20Characteristics%20of%20Supercritical%20Fluids%20in%20Mini-Channels.pdf http://umpir.ump.edu.my/id/eprint/6866/7/fkm-2016-nurye-Numerical%20Simulation%20on%20Flow%20and%20Heat%20Transfer.pdf

id	ump-6866
recordtype	eprints
spelling	ump-68662018-02-01T03:58:33Z http://umpir.ump.edu.my/id/eprint/6866/ Numerical Simulation on Flow and Heat Transfer Characteristics of Supercritical Fluids in Mini-Channels A. N., Oumer N. T., Rao F., Basrawi Hassan, Ibrahim TJ Mechanical engineering and machinery This paper investigated the flow and heat transfer characteristics of supercritical carbon dioxide (SC-CO2) and supercritical water (SC-H2O) in horizontal micro-channels using a CFD approach. Model of a straight circular pipe of stainless steel with internal and external radii of , respectively, and a heated length of 55 mm was considered. For the simulation, carbon dioxide and water at supercritical pressures of 9.5 MPa and 22.07 MPa respectively were used, while uniform heat was applied on the outer surface of the tube. The thermodynamics properties for both fluids were obtained from the NIST Chemistry Web book. The simulated temperature and heat transfer coefficient variation were compared with experimental results from literature. In general, the simulation results were close to the experiment. Both the simulation and experimental results showed that the wall temperature increased along the tube length. As expected, the heat transfer coefficient values for both supercritical fluids decreased as the length of the tube. This was due the reason that a maximum and dominant convection heat transfer occurred at the entrance of the heated section of the pipe. The results from this study could assist in decisions regarding the use of supercritical fluids in industries which involve heat transfer. TAF Publishing 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6866/1/Numerical%20Simulation%20on%20Flow%20and%20Heat%20Transfer%20Characteristics%20of%20Supercritical%20Fluids%20in%20Mini-Channels.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/6866/7/fkm-2016-nurye-Numerical%20Simulation%20on%20Flow%20and%20Heat%20Transfer.pdf A. N., Oumer and N. T., Rao and F., Basrawi and Hassan, Ibrahim (2016) Numerical Simulation on Flow and Heat Transfer Characteristics of Supercritical Fluids in Mini-Channels. Journal of Advances in Technology and Engineering Research. pp. 1-5. ISSN 2414-4592 http://www.tafpublications.com/platform/Articles/full-jater2.3.2.php DOI: 10.1007/s00231-014-1369-2
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 A. N., Oumer N. T., Rao F., Basrawi Hassan, Ibrahim Numerical Simulation on Flow and Heat Transfer Characteristics of Supercritical Fluids in Mini-Channels
description	This paper investigated the flow and heat transfer characteristics of supercritical carbon dioxide (SC-CO2) and supercritical water (SC-H2O) in horizontal micro-channels using a CFD approach. Model of a straight circular pipe of stainless steel with internal and external radii of , respectively, and a heated length of 55 mm was considered. For the simulation, carbon dioxide and water at supercritical pressures of 9.5 MPa and 22.07 MPa respectively were used, while uniform heat was applied on the outer surface of the tube. The thermodynamics properties for both fluids were obtained from the NIST Chemistry Web book. The simulated temperature and heat transfer coefficient variation were compared with experimental results from literature. In general, the simulation results were close to the experiment. Both the simulation and experimental results showed that the wall temperature increased along the tube length. As expected, the heat transfer coefficient values for both supercritical fluids decreased as the length of the tube. This was due the reason that a maximum and dominant convection heat transfer occurred at the entrance of the heated section of the pipe. The results from this study could assist in decisions regarding the use of supercritical fluids in industries which involve heat transfer.
format	Article
author	A. N., Oumer N. T., Rao F., Basrawi Hassan, Ibrahim
author_facet	A. N., Oumer N. T., Rao F., Basrawi Hassan, Ibrahim
author_sort	A. N., Oumer
title	Numerical Simulation on Flow and Heat Transfer Characteristics of Supercritical Fluids in Mini-Channels
title_short	Numerical Simulation on Flow and Heat Transfer Characteristics of Supercritical Fluids in Mini-Channels
title_full	Numerical Simulation on Flow and Heat Transfer Characteristics of Supercritical Fluids in Mini-Channels
title_fullStr	Numerical Simulation on Flow and Heat Transfer Characteristics of Supercritical Fluids in Mini-Channels
title_full_unstemmed	Numerical Simulation on Flow and Heat Transfer Characteristics of Supercritical Fluids in Mini-Channels
title_sort	numerical simulation on flow and heat transfer characteristics of supercritical fluids in mini-channels
publisher	TAF Publishing
publishDate	2016
url	http://umpir.ump.edu.my/id/eprint/6866/ http://umpir.ump.edu.my/id/eprint/6866/ http://umpir.ump.edu.my/id/eprint/6866/ http://umpir.ump.edu.my/id/eprint/6866/1/Numerical%20Simulation%20on%20Flow%20and%20Heat%20Transfer%20Characteristics%20of%20Supercritical%20Fluids%20in%20Mini-Channels.pdf http://umpir.ump.edu.my/id/eprint/6866/7/fkm-2016-nurye-Numerical%20Simulation%20on%20Flow%20and%20Heat%20Transfer.pdf
first_indexed	2023-09-18T22:03:02Z
last_indexed	2023-09-18T22:03:02Z
_version_	1777414524990652416

Numerical Simulation on Flow and Heat Transfer Characteristics of Supercritical Fluids in Mini-Channels

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