Design of Centrifugal Fan with Flexible Blades to Extend the Effective Operating Range in Various Speeds and Mass Flows Based on Numerical Analysis and Statistical Computation
This paper presents research on raising the efficiency and pressure of centrifugal fans at different speed ranges. This problem is related to the incompatibility of the fan characteristics with the speed conditions of the impeller and flow conditions of the installation when the centrifugal fans are...
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| Format: | Article |
| Language: | English |
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Shahid Chamran University of Ahvaz
2025-01-01
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| Series: | Journal of Applied and Computational Mechanics |
| Subjects: | |
| Online Access: | https://jacm.scu.ac.ir/article_19113_e32718389ec2b5edc554284b88e85cce.pdf |
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| _version_ | 1846138808822661120 |
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| author | Thai Hiep Le Long Vu Thang Hong Thong |
| author_facet | Thai Hiep Le Long Vu Thang Hong Thong |
| author_sort | Thai Hiep |
| collection | DOAJ |
| description | This paper presents research on raising the efficiency and pressure of centrifugal fans at different speed ranges. This problem is related to the incompatibility of the fan characteristics with the speed conditions of the impeller and flow conditions of the installation when the centrifugal fans are operated, which decreases efficiency and raises energy consumption. In this research, a novel concept of regulating the blade parameters of centrifugal fans was given. The basis of this study is that a change in the blade angles and impeller outer diameter at different speeds significantly affects the power and the pressure rise of the fan. The scientific basis of this idea, which is using flexible blades for the fan, is aimed at providing high flow rates at relatively low running speeds, relatively low power requirements, and high efficiency when the fan operates in high-speed regions. Therefore, the design of the fan uses variable angles of the impeller blades by linking each blade to two springs. It enables adjustment to change the inlet and outlet blade angle of the impeller, which allows extending the range of operating parameters in accordance with the impeller speed. The flow simulation tests (CFD) of the novel method demonstrated the feasibility of adjusting the blade parameters and confirmed the benefits of this solution. The results of the research are given on the basis of the numerical analysis method and statistical computation method. |
| format | Article |
| id | doaj-art-2f0356b9935947c8a589f0e40351a00a |
| institution | Kabale University |
| issn | 2383-4536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Shahid Chamran University of Ahvaz |
| record_format | Article |
| series | Journal of Applied and Computational Mechanics |
| spelling | doaj-art-2f0356b9935947c8a589f0e40351a00a2024-12-06T21:40:12ZengShahid Chamran University of AhvazJournal of Applied and Computational Mechanics2383-45362025-01-01111557210.22055/jacm.2024.44608.424919113Design of Centrifugal Fan with Flexible Blades to Extend the Effective Operating Range in Various Speeds and Mass Flows Based on Numerical Analysis and Statistical ComputationThai Hiep0Le Long1Vu Thang2Hong Thong3Department of Automotive Engineering, Faculty of Transportation Engineering, Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, Ho Chi Minh City, VietnamDepartment of Machine Design, Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, Ho Chi Minh City, VietnamDepartment of Automotive Engineering, Faculty of Transportation Engineering, Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, Ho Chi Minh City, VietnamDepartment of Automotive Engineering, Faculty of Transportation Engineering, Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, Ho Chi Minh City, VietnamThis paper presents research on raising the efficiency and pressure of centrifugal fans at different speed ranges. This problem is related to the incompatibility of the fan characteristics with the speed conditions of the impeller and flow conditions of the installation when the centrifugal fans are operated, which decreases efficiency and raises energy consumption. In this research, a novel concept of regulating the blade parameters of centrifugal fans was given. The basis of this study is that a change in the blade angles and impeller outer diameter at different speeds significantly affects the power and the pressure rise of the fan. The scientific basis of this idea, which is using flexible blades for the fan, is aimed at providing high flow rates at relatively low running speeds, relatively low power requirements, and high efficiency when the fan operates in high-speed regions. Therefore, the design of the fan uses variable angles of the impeller blades by linking each blade to two springs. It enables adjustment to change the inlet and outlet blade angle of the impeller, which allows extending the range of operating parameters in accordance with the impeller speed. The flow simulation tests (CFD) of the novel method demonstrated the feasibility of adjusting the blade parameters and confirmed the benefits of this solution. The results of the research are given on the basis of the numerical analysis method and statistical computation method.https://jacm.scu.ac.ir/article_19113_e32718389ec2b5edc554284b88e85cce.pdfflexible fan bladeadjustable fan bladecentrifugal fanefficiencyimpeller |
| spellingShingle | Thai Hiep Le Long Vu Thang Hong Thong Design of Centrifugal Fan with Flexible Blades to Extend the Effective Operating Range in Various Speeds and Mass Flows Based on Numerical Analysis and Statistical Computation Journal of Applied and Computational Mechanics flexible fan blade adjustable fan blade centrifugal fan efficiency impeller |
| title | Design of Centrifugal Fan with Flexible Blades to Extend the Effective Operating Range in Various Speeds and Mass Flows Based on Numerical Analysis and Statistical Computation |
| title_full | Design of Centrifugal Fan with Flexible Blades to Extend the Effective Operating Range in Various Speeds and Mass Flows Based on Numerical Analysis and Statistical Computation |
| title_fullStr | Design of Centrifugal Fan with Flexible Blades to Extend the Effective Operating Range in Various Speeds and Mass Flows Based on Numerical Analysis and Statistical Computation |
| title_full_unstemmed | Design of Centrifugal Fan with Flexible Blades to Extend the Effective Operating Range in Various Speeds and Mass Flows Based on Numerical Analysis and Statistical Computation |
| title_short | Design of Centrifugal Fan with Flexible Blades to Extend the Effective Operating Range in Various Speeds and Mass Flows Based on Numerical Analysis and Statistical Computation |
| title_sort | design of centrifugal fan with flexible blades to extend the effective operating range in various speeds and mass flows based on numerical analysis and statistical computation |
| topic | flexible fan blade adjustable fan blade centrifugal fan efficiency impeller |
| url | https://jacm.scu.ac.ir/article_19113_e32718389ec2b5edc554284b88e85cce.pdf |
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