Parametric optimisation of supercritical CO2 thermal-hydraulic characteristics in microchannels using response surface methodology
This study aims to determine the optimum geometrical and operating parameters of supercritical carbon dioxide (ScCO2) flow through a straight pipe for enhanced heat transferusing the Response Surface Method (RSM). Inlet pressure, inlet temperature, mass flow rate, and pipe inner diameter are selecte...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
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Taylor and Francis Ltd.
2023
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| Online Access: | http://umpir.ump.edu.my/id/eprint/38610/ http://umpir.ump.edu.my/id/eprint/38610/1/Parametric%20optimisation%20of%20supercritical%20CO2%20thermal-hydraulic.pdf http://umpir.ump.edu.my/id/eprint/38610/2/Parametric%20optimisation%20of%20supercritical%20CO2%20thermal-hydraulic%20characteristics_ABS.pdf |
| _version_ | 1848825551783985152 |
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| author | Rao, N.T. Oumer, A. N. Noor, M. M. Kadirgama, K. Basrawi, F. Siregar, J. P. |
| author_facet | Rao, N.T. Oumer, A. N. Noor, M. M. Kadirgama, K. Basrawi, F. Siregar, J. P. |
| author_sort | Rao, N.T. |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | This study aims to determine the optimum geometrical and operating parameters of supercritical carbon dioxide (ScCO2) flow through a straight pipe for enhanced heat transferusing the Response Surface Method (RSM). Inlet pressure, inlet temperature, mass flow rate, and pipe inner diameter are selected as design variables while Nusselt number (Nu) and pressure drop are chosen as response functions. The ranges of the input variables considered in the study are inlet pressures (7–10 MPa), inlet temperature (35–80 °C), mass flowrate (0.02–0.05 kg/s), and tube inner diameter (2.8–4.5 mm). The accuracy and validity of the developed mathematical models are validated by comparing the simulation results with published experimental values. The sensitivity analysis results of Nu indicated that the best heat transfer in ScCO2 cooling is found to be associated with the lowest inlet pressure and temperature, the lowest tube diameter, and the highest mass flow rate. Moreover, the best flow conditions with minimum pressure drop are associated with the highest and lowest inlet pressure and temperature, respectively, as well as the highest tube diameter and lowest mass flow rate. These parameter combinations could help reduce the pumping power associated with a high pressure drop. |
| first_indexed | 2025-11-15T03:30:44Z |
| format | Article |
| id | ump-38610 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T03:30:44Z |
| publishDate | 2023 |
| publisher | Taylor and Francis Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-386102023-09-13T05:37:33Z http://umpir.ump.edu.my/id/eprint/38610/ Parametric optimisation of supercritical CO2 thermal-hydraulic characteristics in microchannels using response surface methodology Rao, N.T. Oumer, A. N. Noor, M. M. Kadirgama, K. Basrawi, F. Siregar, J. P. TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics This study aims to determine the optimum geometrical and operating parameters of supercritical carbon dioxide (ScCO2) flow through a straight pipe for enhanced heat transferusing the Response Surface Method (RSM). Inlet pressure, inlet temperature, mass flow rate, and pipe inner diameter are selected as design variables while Nusselt number (Nu) and pressure drop are chosen as response functions. The ranges of the input variables considered in the study are inlet pressures (7–10 MPa), inlet temperature (35–80 °C), mass flowrate (0.02–0.05 kg/s), and tube inner diameter (2.8–4.5 mm). The accuracy and validity of the developed mathematical models are validated by comparing the simulation results with published experimental values. The sensitivity analysis results of Nu indicated that the best heat transfer in ScCO2 cooling is found to be associated with the lowest inlet pressure and temperature, the lowest tube diameter, and the highest mass flow rate. Moreover, the best flow conditions with minimum pressure drop are associated with the highest and lowest inlet pressure and temperature, respectively, as well as the highest tube diameter and lowest mass flow rate. These parameter combinations could help reduce the pumping power associated with a high pressure drop. Taylor and Francis Ltd. 2023 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/38610/1/Parametric%20optimisation%20of%20supercritical%20CO2%20thermal-hydraulic.pdf pdf en http://umpir.ump.edu.my/id/eprint/38610/2/Parametric%20optimisation%20of%20supercritical%20CO2%20thermal-hydraulic%20characteristics_ABS.pdf Rao, N.T. and Oumer, A. N. and Noor, M. M. and Kadirgama, K. and Basrawi, F. and Siregar, J. P. (2023) Parametric optimisation of supercritical CO2 thermal-hydraulic characteristics in microchannels using response surface methodology. Australian Journal of Mechanical Engineering, 21 (3). pp. 894-910. ISSN 1448-4846. (Submitted) (Submitted) https://doi.org/10.1080/14484846.2021.1918374 https://doi.org/10.1080/14484846.2021.1918374 |
| spellingShingle | TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Rao, N.T. Oumer, A. N. Noor, M. M. Kadirgama, K. Basrawi, F. Siregar, J. P. Parametric optimisation of supercritical CO2 thermal-hydraulic characteristics in microchannels using response surface methodology |
| title | Parametric optimisation of supercritical CO2 thermal-hydraulic characteristics in microchannels using response surface methodology |
| title_full | Parametric optimisation of supercritical CO2 thermal-hydraulic characteristics in microchannels using response surface methodology |
| title_fullStr | Parametric optimisation of supercritical CO2 thermal-hydraulic characteristics in microchannels using response surface methodology |
| title_full_unstemmed | Parametric optimisation of supercritical CO2 thermal-hydraulic characteristics in microchannels using response surface methodology |
| title_short | Parametric optimisation of supercritical CO2 thermal-hydraulic characteristics in microchannels using response surface methodology |
| title_sort | parametric optimisation of supercritical co2 thermal-hydraulic characteristics in microchannels using response surface methodology |
| topic | TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics |
| url | http://umpir.ump.edu.my/id/eprint/38610/ http://umpir.ump.edu.my/id/eprint/38610/ http://umpir.ump.edu.my/id/eprint/38610/ http://umpir.ump.edu.my/id/eprint/38610/1/Parametric%20optimisation%20of%20supercritical%20CO2%20thermal-hydraulic.pdf http://umpir.ump.edu.my/id/eprint/38610/2/Parametric%20optimisation%20of%20supercritical%20CO2%20thermal-hydraulic%20characteristics_ABS.pdf |