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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| Language: | en en |
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TAF Publishing
2016
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| Online Access: | 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 http://umpir.ump.edu.my/id/eprint/6866/ http://www.tafpublications.com/platform/Articles/full-jater2.3.2.php |
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| 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 |
| building | UMPSA Library |
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| content_provider | Universiti Malaysia Pahang Al-Sultan Abdullah |
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| continent | Asia |
| country | Malaysia |
| 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.
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| format | Article |
| id | my.ump.umpir.6866 |
| institution | Universiti Malaysia Pahang |
| language | en en |
| publishDate | 2016 |
| publisher | TAF Publishing |
| record_format | eprints |
| spelling | my.ump.umpir.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. (Published) http://www.tafpublications.com/platform/Articles/full-jater2.3.2.php DOI: 10.1007/s00231-014-1369-2 |
| 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 |
| title | 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_short | 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 |
| topic | TJ Mechanical engineering and machinery |
| url | 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 http://umpir.ump.edu.my/id/eprint/6866/ http://www.tafpublications.com/platform/Articles/full-jater2.3.2.php |
| url_provider | http://umpir.ump.edu.my/ |