Development of a Design Methodology for a Centrifugal Compressor with the Utilization of CFD

Öz

Centrifugal compressors are widely used for several purposes in many industries. Aero defense industry uses these compressors in the engines of several structures. In the present study, the centrifugal compressor of a mini jet engine is designed with the utilization of Computational Fluid Dynamics (CFD) tools with the methodology developed. The designed compressor is manufactured and its tests were conducted using an engine that is being utilized commercially. The performance parameters of the designed compressor and the results obtained from the engine were compared and presented. The specifications of the designed compressor was determined in the light of the requirements of the test engine. It was observed that the obtained mass flow rate (0.678 kg/s), pressure ratio (4.6135) and the efficiency (92.38%) values are within the limits of the design specifications and the although there is a slight difference between the results of the CFD analyses and the experiments, the trends of the curves are consistent with each other.

Anahtar Kelimeler

• Centrifugal compressor,computational fluid dynamics,design methodology,compressor tests

Kaynakça

1. Referans1 Saravanamuttoo, H.I.H., Rogers, G.F.C., Cohen, H., Straznicky, P.V., Gas Turbine Theory, 2001.
2. Referans2 Kulkarni, V.V., Anil, T.R., Rajan, N.K.S., An Impeller Blade Analysis of Centrifugal Gas Compressor Using CFD, International Journal of Innovations in Engineering and Technology, Volume 7 Issue 4, 2016.
3. Referans3 Boyce, M.P., Principles of Operation and Performance Estimation of Centrifugal Compressors, 1993.
4. Referans4 The Difference Between a Centrifugal Compressor and a Screw Compressor, https://www.quora.com/What-is-the-difference-between-a-centrifugal-compressor-and-a-screw-compressor, access: 11.12.2019
5. Referans5 Galerkin, Y., Reksrin, A., Drozdov, A., 2D and 3D Impellers of Centrifugal Compressors – Advantages, Shortcomings and Fields of Application, IOP Conference Series: Materials Science and Engineering, Volume 232, conference 1, 2017.
6. Referans6 Tamaki, H., Unno, M., Kawakubo, T., Hirata, Y., Aerodynamic Design of Centrifugal Compressor for AT14 Turbocharger, IHI Engineering Review, Vol. 43, No.2, 2010.
7. Referans7 Damor, J.J., Patel, D.S., Thakkar, K.H., Brahmbhatt, P.K., Experimental and CFD Analysis of Centrifugal Pump Impeller – A Case Study, International Journal of Engineering Research and Technology, 2013.
8. Referans8 ANSYS CFX 15.0, ANSYS Fluent User's Guide, ANSYS Inc., 2013.

9. Referans9 Japikse, D., “Centrifugal Compressor Design and Performance”, Wilder VT, USA: Concepts ETI, 1996.
10. Referans10 Pakle, S., Jiang, K., “Design of a high-performance centrifugal compressor with new surge margin improvement technique for high speed turbomachinery”, Propulsion and Power Research Volume 7, Issue 1, 2018.
11. Referans11 He, X., Zheng, X., “Mechanisms of Sweep on the Performance of Transonic Centrifugal Compressor Impellers, Applied Sciences, 7(10):1081, 2017.
12. Referans12 Bogdanets, S., Blinov, V., Sedunin, V., Komarov, O., Skorohodov, A., “Validation of a CFD Model of a Single Stage Centrifugal Compressor by Local Flow Parameters”, EPJ Web of Conferences; Les Ulis Vol. 196, Les Ulis: EDP Sciences, 2019.
13. Referans13 Zahed, A. H., Bayomi, N. N., “Design Procedure of Centrifugal Compressors”, ISESCO Journal of Science and Technology, Volume 10, Number 17, 2014.
14. Referans14 Casey, M. V., Krahenbühl, D., Zwyssig, C., “The Design of Ultra-High-Speed Miniature Centrifugal Compressors”, European Conference on Turbomachinery Fluid Dynamics and Thermodynamics ETC 10, 2013.
15. Referans15 Li, P. Y., Gu, C. W., Song, Y., “A New Optimization Method for Centrifugal Compressors Based on 1D Calculations and Analyses”,  Energies 8(5):4317-4334, 2015.