In this study, distortion due to inlet duct is experimentally analyzed and discussed in order to understand the performance characteristics of the compressor exposed to a curved inlet configuration. The flow from the bend inlet is not axisymmetric in the circumferential and radial distortion. In the combination including a centrifugal compressor, the bend inlet due to spatial limitation has been shown in a various applications such as industrial chiller. The performance of centrifugal compressors can be degraded by inlet flow distortion due to a 90 degree curved pipe. The bend have some curvature radius ratio, straight upstream and downstream pipes. The flow in bend inlet is sucked due to rotating of impeller and not axisymmetric in the circumferential and radial distortion. In general, primary flow and secondary flow are occurred in curved pipe. In this paper, flow at curved pipe was experimentally measured using by 5-hole probe and hot-wire probe. The 5-hole probe was used in observing the total pressure and velocity contour. Also, the measurement of hot-wire probe was carried out in order to obtain a streamwise velocity profile. The flow details are analyzed and discussed in order to understand the relation between inlet distortion and aerodynamic performance.
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ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
August 1–5, 2010
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4948-4
PROCEEDINGS PAPER
Inlet Distortion of a Centrifugal Compressor With a Circular-Sectioned 90-Degree Bend and Its Influence on the Performance
Kyung-Jun Kang,
Kyung-Jun Kang
Korea Institute of Science and Technology, Seoul, Republic of Korea
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You-Hwan Shin,
You-Hwan Shin
Korea Institute of Science and Technology, Seoul, Republic of Korea
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Kwang-Ho Kim,
Kwang-Ho Kim
Korea Institute of Science and Technology, Seoul, Republic of Korea
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Yoon-Pyo Lee
Yoon-Pyo Lee
Korea Institute of Science and Technology, Seoul, Republic of Korea
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Kyung-Jun Kang
Korea Institute of Science and Technology, Seoul, Republic of Korea
You-Hwan Shin
Korea Institute of Science and Technology, Seoul, Republic of Korea
Kwang-Ho Kim
Korea Institute of Science and Technology, Seoul, Republic of Korea
Yoon-Pyo Lee
Korea Institute of Science and Technology, Seoul, Republic of Korea
Paper No:
FEDSM-ICNMM2010-30671, pp. 683-688; 6 pages
Published Online:
March 1, 2011
Citation
Kang, K, Shin, Y, Kim, K, & Lee, Y. "Inlet Distortion of a Centrifugal Compressor With a Circular-Sectioned 90-Degree Bend and Its Influence on the Performance." Proceedings of the ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C. Montreal, Quebec, Canada. August 1–5, 2010. pp. 683-688. ASME. https://doi.org/10.1115/FEDSM-ICNMM2010-30671
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