| Radial Forces in a Centrifugal Compressor; Experimental Investigation by Using Magnetic Bearings and Static Pressure Distribution |
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| 引用本文： | Arttu REUNANEN,Jaakko LARJOLA. Radial Forces in a Centrifugal Compressor; Experimental Investigation by Using Magnetic Bearings and Static Pressure Distribution[J]. 热科学学报(英文版), 2005, 14(1): 1-8. DOI: 10.1007/s11630-005-0032-0 |
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| 作者姓名： | Arttu REUNANEN Jaakko LARJOLA |
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| 作者单位： | Department of Energy and Environmental Technology Lappeenranta University of Technology，Lappeenranta，Finland，Department of Energy and Environmental Technology Lappeenranta University of Technology，Lappeenranta，Finland |
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| 摘 要： | The volute of a centrifugal compressor causes a non-uniform pressure distribution which leads to a radial force on the impeller. This force was measured using magnetic bearings. In addition, the radial force was estimated using the static pressure distribution measured at the impeller outlet. The impeller force was found to be the highest at choke, the lowest at the design flow and moderate at stall. The radial force determined from the pressure measurements was only slightly different from the force obtained from the bearing measurements. The rotational speed was seen to affect the force to some extent.
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| 关 键 词： | 离心压气机 径向力 实验观测 静态压力分布 磁性轴承 |
| 收稿时间： | 2005-02-22 |
Radial forces in a centrifugal compressor; Experimental investigation by using magnetic bearings and static pressure distribution |
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| Arttu Reunanen,Jaakko Larjola. Radial forces in a centrifugal compressor; Experimental investigation by using magnetic bearings and static pressure distribution[J]. Journal of Thermal Science, 2005, 14(1): 1-8. DOI: 10.1007/s11630-005-0032-0 |
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| Authors: | Arttu Reunanen Jaakko Larjola |
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| Affiliation: | (1) Department of Energy and Environmental Technology, Lappeenranta University of Technology, Lappeenranta, Finland |
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| Abstract: | The volute of a centrifugal compressor causes a non-uniform pressure distribution which leads to a radial force on the impeller. This force was measured using magnetic bearings. In addition, the radial force was estimated using the static pressure distribution measured at the impeller outlet. The impeller force was found to be the highest at choke, the lowest at the design flow and moderate at stall. The radial force determined from the pressure measurements was only slightly different from the force obtained from the bearing measurements. The rotational speed was seen to affect the force to some extent. |
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| Keywords: | centrifugal compressor aerodynamic force radial force volute. |
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