Abstract
Previous search works on centrifugal compressors mainly focused on the most important part, namely the impeller. However, as the potential of the impeller are exhausting, more and more attentions have been turned to the static parts, such as the diffuser and volute. Based on the three dimensional geometry of a typical prototype design of a centrifugal stage and volute, and commercial CFD software NUMECA, a numerical analytic system was developed in this paper. Detailed flow structures and main sources of the flow losses were analyzed and structural modifications were proposed and experimented numerically. Main factors affecting the performance were studied. Final results indicate that the polytropic efficiency can be increased by 4.5%. As the original design is typical and widely used in real production, it was estimated that the overall efficiency of the centrifugal compressor can be increased by 1.5%∼2% with this new design method.
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References
A. Fatsis, S. et al, “Three-Dimensional Unsteady Flow and Forces in Centrifugal Impellers with Circumferential Distortion of the Outlet Static Pressure,” Transactions of the ASME, J. of Turbomachinery, Vol. 119, Jan. 1997.
Abraham Engeda, “Experimental and Numerical Investigation of the Performance of a 240 kW centrifugal compressor with different diffusers,” Experimental Thermal and Fluid Science, Vol. 28, Dec. 2003.
M.M. Cui, “Comparative Study of Vaneless and Vaned Diffusers in a Transonic Centrifugal Compressor with Real Gas,” ASME Paper, No. 2000-GT-450.
Arttu Reunanen, “Experimental and Numerical Analysis of Different Volutes in a Centrifugal Compressor,” PhD thesis, Lappeenranta University of Technology, 2001.
Z. Huang, “Turobo-Compressor,” Chemical Industry Press, Beijing, 2004.
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© 2007 Zhejiang University Press, Hangzhou and Springer-Verlag GmbH Berlin Heidelberg
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Ji, C., Wang, Y., Yao, L. (2007). Numerical Analysis and Optimization of the Volute in a Centrifugal Compressor. In: Cen, K., Chi, Y., Wang, F. (eds) Challenges of Power Engineering and Environment. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-76694-0_254
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DOI: https://doi.org/10.1007/978-3-540-76694-0_254
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-76693-3
Online ISBN: 978-3-540-76694-0
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