Radial forces in a centrifugal compressor; Experimental investigation by using magnetic bearings and static pressure distribution

被引:0
|
作者
Arttu Reunanen
Jaakko Larjola
机构
[1] Lappeenranta University of Technology,Department of Energy and Environmental Technology
来源
Journal of Thermal Science | 2005年 / 14卷
关键词
centrifugal compressor; aerodynamic force; radial force; volute; TK474.8; 2;
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中图分类号
学科分类号
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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页码:1 / 8
页数:7
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