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 OJFD  Vol.7 No.3 , September 2017
Effect of Double Air Injection on Instability Phenomena in Centrifugal Compressor
Toshiyuki Hirano1, Tatsuya Ogawa2, Hoshio Tsujita3
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Abstract:
In the operation of a centrifugal compressor of turbocharger, instability phenomena such as rotating stall and surge are induced at a lower flow rate close to the maximum pressure ratio. In this study, the compressed air at the exit of centrifugal compressor was re-circulated and injected to the impeller inlet by using two injection nozzles in order to suppress the surge phenomenon. The most effective circumferential position was examined to reduce the flow rate at the surge inception. Moreover, the influences of the injection on the fluctuating property of the flow field before and after the surge inception were investigated by examining the frequency of static pressure fluctuation on the wall surface and visualizing the compressor wall surface by oil-film visualization technique.
Keywords: Centrifugal Compressor, Performance, Nozzle Injection, Surge
Cite this paper: Hirano, T. , Ogawa, T. and Tsujita, H. (2017) Effect of Double Air Injection on Instability Phenomena in Centrifugal Compressor. Open Journal of Fluid Dynamics, 7, 462-474. doi: 10.4236/ojfd.2017.73031.
References

[1]   Suzuki, A., Tsujita, H. and Mizuki, S. (1999) Passive Control of Surge For Centrifugal Compressor by Using Resonator, Proceedings of the Fourth International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows, 2, 226-233.

[2]   Mizuki, S., Tsujita, H. and Hishinuma, Y. (2000) Control of Surge for Centrifugal Compression System by Using a Bouncing Ball. ASME Turbo Expo 2000: Power for Land, Sea, and Air, Munich, 8-11 May 2000, Paper No. 2000-GT-0429, V001T03A005.
https://doi.org/10.1115/2000-GT-0429

[3]   Willemas, F. and De Jager, B. (2000) One-Sided Control of Surge in A Centrifugal Compressor System. ASME Turbo Expo 2000: Power for Land, Sea, and Air, Munich, 8-11 May 2000, Paper 2000-GT-0527, V001T03A091.
https://doi.org/10.1115/2000-GT-0527

[4]   Skoch, G.J. (2004) Experimental Investigation of Diffuser Hub Injection to Improve Centrifugal Compressor Stability. ASME Turbo Expo 2004: Power for Land, Sea, and Air, Vienna, 14-17 June 2004, Paper No. GT2004-53618, 793-804.
https://doi.org/10.1115/GT2004-53618

[5]   Tamaki, H., Zheng, X. and Zhang Y. (2012) Experimental Investigation of High Pressure Ratio Centrifugal Compressor with Axisymmetric and Non-Axisymmetric Recirculation Device. ASME Turbo Expo 2012: Turbine Technical Conference and Exposition, Copenhagen, 11-15 June 2012, Paper No. GT2012-68219, 569-581.
https://doi.org/10.1115/GT2012-68219

[6]   Chen, H. and Lei, V. (2013) Casing Treatment and Inlet Swirl of Centrifugal Compressors. Journal of Turbomachinery, 135, Article ID: 041010.
https://doi.org/10.1115/1.4007739

[7]   Gu, R. and Yashiro, M. (2005) Surge Control for Centrifugal Compressor of Turbocharger. JSAE Paper, 36, 83-88.

[8]   Gu, R., Mizuki, S., Tsujita, H. and Ikeda, S. (2007) Surge Control of Centrifugal Compressor by Inducer Tip Injection. Proceedings of IGTC2007, Tokyo, 2-7 December 2007, TS-030.

[9]   Hirano, T., Takano, M. and Tsujita, H. (2015) Effect of Double Air Injection on Performance Characteristics of Centrifugal Compressor. Journal of Thermal Science, 24, 10-16.
https://doi.org/10.1007/s11630-015-0749-3

 
 
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