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Numerical study on the Effect of Interaction Vaned Diffuser with Impeller on the Performance of a Modified Centrifugal Compressor

Published online by Cambridge University Press:  07 August 2013

L. H. Jawad ,
S. Abdullah ,
R. Zulkifli  and
W. M. F. W. Mahmood
L. H. Jawad*
Affiliation:
Foundation of Technical Education, Ministry of Higher Education and Scientific Research, Iraq Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, The National University of Malaysia, Malaysia, Ukm Bangi, Selangor, Malaysia
S. Abdullah
Affiliation:
Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, The National University of Malaysia, Malaysia Ukm Bangi, Selangor, Malaysia
R. Zulkifli
Affiliation:
Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, The National University of Malaysia, Malaysia Ukm Bangi, Selangor, Malaysia
W. M. F. W. Mahmood
Affiliation:
Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, The National University of Malaysia, Malaysia Ukm Bangi, Selangor, Malaysia
*
*[email protected]
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Abstract

This paper is a numerical simulation that was made in the three-dimensional flow, carried out in a modified centrifugal compressor, having vaned diffuser stage, used as an auto-motive turbo charger. Moreover, the performance of the centrifugal compressor was dependent on the proper matching between compressor impeller and vaned diffuser, influencing significantly surge and the efficiency of centrifugal compressor stages. In addition, a modified compressor impeller, coupled with vane and vaneless diffuser, has been found to have similar internal flow patterns for both the vaneless and vaned diffuser design. The vaned diffuser effect has been paid particular attention in terms of better analysis where the diffuser was designed for high sub-sonic inlet conditions. Another aim of this research was to study and simulate the effect of vaned diffuser on the performance of a centrifugal compressor. The simulation was undertaken by using a commercial software, the so-called ANSYS CFX, to predict numerically the performance in terms of pressure ratio, poly tropic efficiency and mass flow rate for the centrifugal compressor stage. The results were generated from CFD and were analyzed for better understanding of the fluid flow through centrifugal compressor stage. Conclusively, it was observed that the effect of the vaned diffuser is to convert the kinetic energy into a high static pressure after analyzing the results of the simulation.

Keywords

Numerical studyCentrifugal compressor performanceVaned diffuserCFD
Type
Research Article
Information
Journal of Mechanics , Volume 30 , Issue 2 , April 2014 , pp. 113 - 121
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2013 

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References

REFERENCES

1.Yang, Y., Xie, R., Gong, L.-Y. and Hai, Y., Study of Influence of Diffuser Meridian Channel Shape on Performance of Micro-Gas Turbine Centrifugal Compressor. Power and Energy Engineering Conference (APPEEC), Asia-Pacific 978-1-42446255-1/11 (2011).Google Scholar
2.Galindo, J., Climent, H., Guardiol, C. and Tiseira, A., “On the Effect of Pulsating Flow on Surge Margin of Small Centrifugal Compressors for Automotive Engines,” Experimental Thermal and Fluid Science, 33, pp. 1163–1171 (2009).Google Scholar
3.Baris, O., “Automotive Turbocharger Compressor CFD and Extension Towards Incorporating Installation Effects,” Proceedings of ASME Turbo Expo 2011: Power for Land, Sea and Air GT2011 (2011).Google Scholar
4.Guo, Q., Chen, H., Zhu, X-C., Du, Z-H. and Zhao, Y., “Numerical Simulations of Stall Inside a Centrifugal Compressor,” Proceedings of the Institute of Mechanical Engineers, Part A: Journal of Power and Energy, 221, pp. 683–693 (2007).Google Scholar
5.Galindo, J., Serrano, J. R., Guardiola, C. and Cervello, C., “Surge Limit Definition in a Specific Test Bench for the Characterization of Automotive Turbochargers,” Experimental Thermal and Fluid Science, 30, pp. 449–462 (2006).Google Scholar
6.Jiang, W., Khan, Jamil and Dougal, Roger A. “Dynamic Centrifugal Compressor Model for System Simulation,” Journal of Power Sources, 158, pp. 1333–1343 (2006).Google Scholar
7.Engeda, A., “Experimental and Numerical Investigation of the Performance of a 240Kw Centrifugal Compressor with Different Diffusers,” Experimental Thermal and Fluid Science, 28, pp. 55–72 (2003).Google Scholar
8.Engeda, A., “Effect of Impeller Exit Width Trimming on Compressor Performance,” Proceedings of the 8th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows, ISAIF8-00135 (2007).Google Scholar
9.Tamaki, H., “Effect of Piping Systems on Surge in Centrifugal Compressors,” Journal of Mechanical Science and Technology, 22, pp. 1857–1863 (2008).CrossRefGoogle Scholar
10.Galindo, J., Arnau, F. J., Tiseira, A. and Piqueras, P., “Solution of the Turbocompressor Boundary Condition for One-Dimensional Gas-Dynamic Codes,” Mathematical and Computer Modelling, 52, pp. 1288–1297 (2010).Google Scholar
11.Cukurel, B., Lawless, P. B. and Fleeter, S., “Particle Image Velocity Investigation of a High Speed Centrifugal Compressor Diffuser, Spanwise and Loading Variations,” Journal of Turbomachinery, 132, pp. 1–9 (2010).Google Scholar
12.Higashimori, H., Hasagawa, K., Sumida, K. and Suita, T., “Detailed Flow Study of Mach Number 1.6 High Transonic Flow With a Shock Wave in a Pressure Ratio 11 Centrifugal Compressor Impeller,” Journal of Turbomachinery, 126, pp. 473–481 (2004).Google Scholar
13.Shook, R. M. P. J. and Oakes, W., “The Aerodynamic Performance of a High Speed Research Centrifugal Compressor Facility,” AIAA Paper 1994-2798, pp. 1–9 (1994).Google Scholar
14.Gravdahl, J. T. and Willems, F., “Modeling of Surge in Free-Spool Centrifugal Compressors: Experimental Validation,” Journal of Propulsion and Power, 20, pp. 849–857 (2004).Google Scholar
15.Peric, M., Flow Simulation Using Control Volumes of Arbitrary Polyhedral Shape, ERCOFTAC Bulletin 62 (2004).Google Scholar
16.Mendonça, F., Clement, J., Palfreyman, D. and Peck, A., “Validation of Unstructured CFD Modelling Applied to the Conjugate Heat Transfer in Turbine Blade Cooling,” ETC8-198, European Turbomachinery Conference, Graz (2008).Google Scholar
17.Ziegler, K. U., Gallus, H. E. and Niehuis, R., “A Study on Impeller-Diffuser Interaction—Part I: Influence on the Performance,” Journal of Turbomachinery, 125, pp. 173–182.170 (2003).CrossRefGoogle Scholar
18.Ramakrishnan, K., Lawless, P. B. and Fleeter, S., “High Speed Centrifugal Compressor Aeromechanics — Impeller Unsteady Aerodynamics,” AIAA 2007-5020, Cincinnati, OH: AIAA, pp. 1–18 (2007).Google Scholar
19.Barry, W. B., “An Investigation of Unsteady Impeller-Diffuser Interactions in a Centrifugal Compressor,” Purdue University Thesis (1991).Google Scholar
20.Gallier, K., Lawless, P. B. and Fleeter, S., “PIV Characterization of High Speed Centrifugal Compressor Impeller-Diffuser Interaction,” AIAA 2007-5019, Cincinnati, OH: AIAA, pp. 1–8 (2007).Google Scholar
21.Ziegler, K. U., Gallus, H. E. and Niehuis, R., “A Study on Impeller-Diffuser Interaction-Part II: Detailed Flow Analysis,” Journal of Turbomachinery, 125, pp. 183–192 (2003).Google Scholar
22.Ibaraki, S., Matsuo, T. and Yokoyama, T., “Investigation of Unsteady Flow Field in a Vaned Diffuser of a Transonic Centrifugal Compressor,” Journal of Turbomachinery, 129, p. 686 (2007).CrossRefGoogle Scholar
23.Layth, H., Jawad, S., Zulkifli, Abdullah R. and Mahmood, W. M. F. W., “Numerical Study on the Effect of Impeller Trimming on the Performance of a Modified Turbocharger Centrifugal Compressor,” Archives Des Sciences, 65, pp. 324–335 (2012).Google Scholar
24.Layth, H., Jawad, S., Zulkifli, Abdullah R. and Mahmood, W. M. F. W., “Modelling of Centrifugal Compressor Impellers using Adaptive Neuro-Fuzzy Inference Systems (ANFIS),” International Review of Mechanical Engineering (IREME), 6, (2012).Google Scholar
25.Layth, H., Jawad, S., Zulkifli, Abdullah R. and Mahmood, W. M. F. W., “Prediction of Centrifugal Compressor Performance by Using Adaptive Neuro-Fuzzy Inference System (ANFIS),” International Review on Modelling and Simulations (IREMOS), 5, p. 1580 (2012).Google Scholar
26.Layth, H., Jawad, S., Zulkifli, Abdullah R. and Mahmood, W. M. F. W., “Numerical Simulation of Flow Inside a Modified Turbocharger Centrifugal Compressor,” Asian Journal of Applied Sciences, 5, pp. 563–572 (2012).Google Scholar