Numercial modeling for enhanced heat transfer efficiency of spiral coils with supercritical fluid flow under different operating conditions
This research investigates the thermohydraulic performance and exergy destruction associated with the flow of supercritical carbon dioxide (sCO2) within spirally coiled mini tubes. The study examines the impact of different cross-sectional geometries. The primary objective of the study is to examine...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24014503 |
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| author | Xinling Wang Naeim Farouk Xiaoqing Fu Pradeep Kumar Singh Guo Xu Fahad M. Alhomayani Baseem Khan Fawaz S. Alharbi Barno Sayfutdinovna Abdullaeva Laith H. Alzubaidi Yasser Elmasry Hakim A.L. Garalleh |
| author_facet | Xinling Wang Naeim Farouk Xiaoqing Fu Pradeep Kumar Singh Guo Xu Fahad M. Alhomayani Baseem Khan Fawaz S. Alharbi Barno Sayfutdinovna Abdullaeva Laith H. Alzubaidi Yasser Elmasry Hakim A.L. Garalleh |
| author_sort | Xinling Wang |
| collection | DOAJ |
| description | This research investigates the thermohydraulic performance and exergy destruction associated with the flow of supercritical carbon dioxide (sCO2) within spirally coiled mini tubes. The study examines the impact of different cross-sectional geometries. The primary objective of the study is to examine the impact of critical parameters, including shape, hydraulic diameter, inlet temperature, mass flux, and operating pressure, on important variables such as friction factor, heat transfer coefficient, and exergy efficiency. The computational simulation employs the RNG k−ε model. The Coupled algorithm was utilized for the determination of velocity and pressure fields, utilizing second-order discretization for domain partitioning and first-order discretization for other terms. The carbon dioxide (CO2) was conceptualized as a compressible gas with complex thermophysical attributes that are contingent upon variations in temperature and pressure. The thermophysical properties of carbon dioxide are evaluated within a defined range of operating conditions (298. 15 K < T < 455 K and 8 MPa < p < 10 MPa). The observed trends in HTC (heat transfer coefficient) demonstrate a correlation with specific heat, showing a peak at lower temperatures under increased operating pressures. Elevated operational pressure results in a reduction of the maximum HTC. The augmentation of mass flux results in an increase in heat transfer coefficient, thereby indicating an improvement in system efficiency. An augmentation in hydraulic diameter yields diminished heat transfer coefficients, mitigated pressure loss, and heightened exergy destruction. |
| format | Article |
| id | doaj-art-a4f07e6fe5d74ad19215ac3100db1e1f |
| institution | OA Journals |
| issn | 2214-157X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-a4f07e6fe5d74ad19215ac3100db1e1f2025-08-20T02:21:03ZengElsevierCase Studies in Thermal Engineering2214-157X2024-12-016410541910.1016/j.csite.2024.105419Numercial modeling for enhanced heat transfer efficiency of spiral coils with supercritical fluid flow under different operating conditionsXinling Wang0Naeim Farouk1Xiaoqing Fu2Pradeep Kumar Singh3Guo Xu4Fahad M. Alhomayani5Baseem Khan6Fawaz S. Alharbi7Barno Sayfutdinovna Abdullaeva8Laith H. Alzubaidi9Yasser Elmasry10Hakim A.L. Garalleh11Dongbei university of Finance and Economics, Dalian, 116000, Liaoning, China; Yingkou qingying petrifaction Equipment co., ltd, Yingkou, 115000, Liaoning, ChinaMechanical Engineering Department, College of Engineering in Alkharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia; Mechanical Engineering Department, Faculty of Engineering, Red Sea University, Port Sudan, SudanChina University of Petroleum-Beijing, Beijing, 100000, China; Corresponding author.Department of Mechanical Engineering, Institute of Engineering & Technology, GLA University, Mathura, U.P., 281406, IndiaYingkou qingying petrifaction Equipment co., ltd, Yingkou, 115000, Liaoning, ChinaCollege of Computers and Information Technology, Taif University, Saudi Arabia; Applied College, Taif University, Saudi ArabiaDepartment of Electrical and Computer Engineering, Hawassa University, Hawassa, Ethiopia; Center for Renewable Energy and Microgrids, Huanjiang Laboratory, Zhejiang University, Zhejiang, 311816, China; Corresponding author. Department of Electrical and Computer Engineering, Hawassa University, Hawassa, Ethiopia.Department of Mechanical Engineering, College of Engineering, University of Hafr Al Batin, P.O. Box 1803, Hafr Al Batin, 39524, Saudi ArabiaDepartment of Mathematics and Information Technologies, Vice-Rector for Scientific Affairs, Tashkent State Pedagogical University, Tashkent, UzbekistanCollege of Technical Engineering, The Islamic University, Najaf, Iraq; College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq; College of Technical Engineering, The Islamic University of Babylon, Babylon, IraqDepartment of Mathematics - College of Science - King Khalid University, P.O. Box 9004, Abha, 61466, Saudi ArabiaDepartment of Mathematical Science, College of Engineering, University of Business and Technology, Jeddah, 21361, Saudi ArabiaThis research investigates the thermohydraulic performance and exergy destruction associated with the flow of supercritical carbon dioxide (sCO2) within spirally coiled mini tubes. The study examines the impact of different cross-sectional geometries. The primary objective of the study is to examine the impact of critical parameters, including shape, hydraulic diameter, inlet temperature, mass flux, and operating pressure, on important variables such as friction factor, heat transfer coefficient, and exergy efficiency. The computational simulation employs the RNG k−ε model. The Coupled algorithm was utilized for the determination of velocity and pressure fields, utilizing second-order discretization for domain partitioning and first-order discretization for other terms. The carbon dioxide (CO2) was conceptualized as a compressible gas with complex thermophysical attributes that are contingent upon variations in temperature and pressure. The thermophysical properties of carbon dioxide are evaluated within a defined range of operating conditions (298. 15 K < T < 455 K and 8 MPa < p < 10 MPa). The observed trends in HTC (heat transfer coefficient) demonstrate a correlation with specific heat, showing a peak at lower temperatures under increased operating pressures. Elevated operational pressure results in a reduction of the maximum HTC. The augmentation of mass flux results in an increase in heat transfer coefficient, thereby indicating an improvement in system efficiency. An augmentation in hydraulic diameter yields diminished heat transfer coefficients, mitigated pressure loss, and heightened exergy destruction.http://www.sciencedirect.com/science/article/pii/S2214157X24014503Heat fluxThermal efficiencyHeating fluidsHydro-thermal performanceGeometrical modification |
| spellingShingle | Xinling Wang Naeim Farouk Xiaoqing Fu Pradeep Kumar Singh Guo Xu Fahad M. Alhomayani Baseem Khan Fawaz S. Alharbi Barno Sayfutdinovna Abdullaeva Laith H. Alzubaidi Yasser Elmasry Hakim A.L. Garalleh Numercial modeling for enhanced heat transfer efficiency of spiral coils with supercritical fluid flow under different operating conditions Case Studies in Thermal Engineering Heat flux Thermal efficiency Heating fluids Hydro-thermal performance Geometrical modification |
| title | Numercial modeling for enhanced heat transfer efficiency of spiral coils with supercritical fluid flow under different operating conditions |
| title_full | Numercial modeling for enhanced heat transfer efficiency of spiral coils with supercritical fluid flow under different operating conditions |
| title_fullStr | Numercial modeling for enhanced heat transfer efficiency of spiral coils with supercritical fluid flow under different operating conditions |
| title_full_unstemmed | Numercial modeling for enhanced heat transfer efficiency of spiral coils with supercritical fluid flow under different operating conditions |
| title_short | Numercial modeling for enhanced heat transfer efficiency of spiral coils with supercritical fluid flow under different operating conditions |
| title_sort | numercial modeling for enhanced heat transfer efficiency of spiral coils with supercritical fluid flow under different operating conditions |
| topic | Heat flux Thermal efficiency Heating fluids Hydro-thermal performance Geometrical modification |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24014503 |
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