Study on the impact parameters of convective heat transfer in industrial-scale Siemens reactor
In industrial-scale Siemens reactors, convective heat transfer (CHT) plays a crucial role in regulating the uniformity of the reactor's temperature distribution and ensuring the quality of the polysilicon products. This study developed a forced CHT model for a 12-pair silicon rod industrial-sca...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24017258 |
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| author | Xingping Yuan Dan Zhao Yanqing Hou Ni Yang Wenhui Ma Fengyang Chen Gang Xie |
| author_facet | Xingping Yuan Dan Zhao Yanqing Hou Ni Yang Wenhui Ma Fengyang Chen Gang Xie |
| author_sort | Xingping Yuan |
| collection | DOAJ |
| description | In industrial-scale Siemens reactors, convective heat transfer (CHT) plays a crucial role in regulating the uniformity of the reactor's temperature distribution and ensuring the quality of the polysilicon products. This study developed a forced CHT model for a 12-pair silicon rod industrial-scale Siemens reactor. The effects of operating parameters (inlet gas temperature, inlet gas velocity and silicon rod surface temperature) and geometrical parameters (diameter and number of silicon rods) on the CHT coefficient were analyzed, and the results indicate that the inlet gas velocity and the diameter of the silicon rods had the greatest effect on the CHT coefficient, which fluctuated up to. 85.5 W m⁻2 K⁻1. Furthermore, this study also considered the interactions between these factors and derived a correlation equation that characterizes the CHT behavior in the reactor. The equation was validated using production data from a 24-pair silicon rod industrial-scale Siemens reactor, with an error of only 7.6 %, demonstrating the reliability of the model. Consequently, the established forced CHT model and correlation equation can effectively predict CHT in industrial-scale Siemens reactors. This study provides a valuable tool for optimizing reactor design and operation, ultimately contributing to the reduction of silica fines formation and energy consumption during the production process. |
| format | Article |
| id | doaj-art-3459a33b25dc459090cb4e2be8df5a14 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-3459a33b25dc459090cb4e2be8df5a142025-02-02T05:27:11ZengElsevierCase Studies in Thermal Engineering2214-157X2025-02-0166105694Study on the impact parameters of convective heat transfer in industrial-scale Siemens reactorXingping Yuan0Dan Zhao1Yanqing Hou2Ni Yang3Wenhui Ma4Fengyang Chen5Gang Xie6School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, 650093, Kunming, Yunnan, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, 650093, Kunming, Yunnan, ChinaSchool of Metallurgy and Energy Engineering, Kunming University of Science and Technology, 650093, Kunming, Yunnan, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, 650093, Kunming, Yunnan, ChinaSchool of Metallurgy and Energy Engineering, Kunming University of Science and Technology, 650093, Kunming, Yunnan, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, 650093, Kunming, Yunnan, China; Corresponding author. School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, 650093, Kunming, Yunnan, China.Kunming Metallurgical Research Institute Co., Yuantong North Road 86, 650031, Kunming, Yunnan, China; Corresponding author.School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, 650093, Kunming, Yunnan, China; Corresponding author.School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, 650093, Kunming, Yunnan, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, 650093, Kunming, Yunnan, ChinaKunming Metallurgical Research Institute Co., Yuantong North Road 86, 650031, Kunming, Yunnan, ChinaIn industrial-scale Siemens reactors, convective heat transfer (CHT) plays a crucial role in regulating the uniformity of the reactor's temperature distribution and ensuring the quality of the polysilicon products. This study developed a forced CHT model for a 12-pair silicon rod industrial-scale Siemens reactor. The effects of operating parameters (inlet gas temperature, inlet gas velocity and silicon rod surface temperature) and geometrical parameters (diameter and number of silicon rods) on the CHT coefficient were analyzed, and the results indicate that the inlet gas velocity and the diameter of the silicon rods had the greatest effect on the CHT coefficient, which fluctuated up to. 85.5 W m⁻2 K⁻1. Furthermore, this study also considered the interactions between these factors and derived a correlation equation that characterizes the CHT behavior in the reactor. The equation was validated using production data from a 24-pair silicon rod industrial-scale Siemens reactor, with an error of only 7.6 %, demonstrating the reliability of the model. Consequently, the established forced CHT model and correlation equation can effectively predict CHT in industrial-scale Siemens reactors. This study provides a valuable tool for optimizing reactor design and operation, ultimately contributing to the reduction of silica fines formation and energy consumption during the production process.http://www.sciencedirect.com/science/article/pii/S2214157X24017258Convective heat transferDimensionless analysisIndustrial-scale Siemens reactorPolysilicon |
| spellingShingle | Xingping Yuan Dan Zhao Yanqing Hou Ni Yang Wenhui Ma Fengyang Chen Gang Xie Study on the impact parameters of convective heat transfer in industrial-scale Siemens reactor Case Studies in Thermal Engineering Convective heat transfer Dimensionless analysis Industrial-scale Siemens reactor Polysilicon |
| title | Study on the impact parameters of convective heat transfer in industrial-scale Siemens reactor |
| title_full | Study on the impact parameters of convective heat transfer in industrial-scale Siemens reactor |
| title_fullStr | Study on the impact parameters of convective heat transfer in industrial-scale Siemens reactor |
| title_full_unstemmed | Study on the impact parameters of convective heat transfer in industrial-scale Siemens reactor |
| title_short | Study on the impact parameters of convective heat transfer in industrial-scale Siemens reactor |
| title_sort | study on the impact parameters of convective heat transfer in industrial scale siemens reactor |
| topic | Convective heat transfer Dimensionless analysis Industrial-scale Siemens reactor Polysilicon |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24017258 |
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