Experimental and Numerical Analysis of Turbine Performance Improvement by Changing Turbine Blade Inlet Angle

Authors

Mechanical Dept.-Islamic Azad Uni.-Kashan Branch

Abstract

The use of Turbocharger for increasing incoming air density to the motor and thus increasing its power is a common method. Due to the variation of the engines in volume, the number of cylinders and the power, the turbocharger for a particular engine may not completely match the motor. This paper tries to improve the turbine performance by changing the angle of the turbine blade toward the selective compressor turbocharger and the 3-D flow simulation. The results show that the variation of the angle of the turbine at a value of about 4.7 degrees improves the turbine performance by about 18 %. This improvement of performance, especially the power of the turbine at the low speed of the motor, is very valuable when the energy from the engine is low. In order to validate, the engine and turbocharger set are tested on the test platform, and in different cycles of the motor, the performance parameters of the turbocharger turbine are measured and compared with the simulation results.

Keywords

Main Subjects


[1] Rajoo, S., and Martinez Botas R.F., "Experimental Study on the Performance of a Variable Geometry Mixed Flow Turbine for Automotive Turbocharger", IMechE, 8th International Conference on Turbocharging and Turbochargers, Detroit, Michigan, USA, (2006).
 
[2] Padzillah, M.H., Rajoo, S., and Martinez-Botas, R.F., "Influence of Speed and Frequency towards the Automotive Turbocharger Turbine Performance under Pulsating Flow Conditions", Energy Conversion and Management, Vol. 80, pp. 416–428, (2014).
 
[3] Leonard, T., Spence, S., Early, J., and Filsinger, D., "A Numerical Study of Automotive Turbocharger Mixed Flow Turbine Inlet Geometry for Off Design Performance", 6th International Conference on Pumps and Fans with Compressors and Wind Turbines, Beijing, China, (2013).
 
[4]    Otsuka, K., Komatsu, T., Tsujita, H., Yamaguchi, S., and Yamagata, A., "Numerical Analysis of Flow in Radial Turbine (Effects of Nozzle Vane Angle on Internal Flow)", International Journal of Fluid Machinery and Systems, Vol. 9, pp. 126-147, (2016).
 
[5]    Mingyang, Y., Martinez-Botas, R.F, Rajoo, S., Yokoyama, T., and Ibaraki, S., "An Investigation of Volute Cross-sectional Shape on Turbocharger Turbine under Pulsating Conditions in Internal Combustion Engine", Energy Conversion and Management, Vol. 105, pp. 167–177, (2015).
 
[6]    Chiong, M.S., Rajoo, S., Romagnoli, A., Costall, A.W., Martinez-Botas, R.F., and "Non-Adiabatic Pressure Loss Boundary Condition for Modeling Turbocharger Turbine Pulsating Flow", Energy Conversion and Management, Vol. 93, pp. 267–281, (2015).
 
[7]    Bontempo, R., Cardone, M., Manna, M., and Vorraro, G., "Steady and Unsteady Experimental Analysis of a Turbocharger for Automotive Applications", Energy Conversion and Management, Vol. 99, pp. 72–80, (2015).
 
[8]    Galindo, J., Tiseira, A., Navarro, R., Tari, D., and Meano, C.M., "Effect of the Inlet Geometry on Performance, Surge Margin and Noise Emission of an Automotive Turbocharger Compressor", Applied Thermal Engineering, Vol. 110, pp. 875–882, (2016).
 
[9]    Roy, B. D., and Saravanan, R.,"Experimental Turbomatching of Turbochargers B60J68, A58N70, A58N72 and A58N75 for Short Haulage Truck", International Journal of Engineering and Techniques, Vol. 2, pp. 347-359, (2017).
 
[10]    Mohand, M.M., Mohan, A.E., and Habeeb, H.A., "Improving and Analysis Turbine Wheel of Turbocharger for High Performance Engines", Journal of Mechanical Engineering Research and Developments, Vol. 41, pp. 91-96, (2018).
 
[11]  Chelabi, M.A., Hamidou, M. K., and Hamel, M., "Effects of Cone Angle and Inlet Blade Angle on Mixed Inflow Turbine Performances", Periodica Polytechnica Mechanical Engineering, Vol. 61, No. 3, pp. 225-233, (2017).
 
[12]  Jiyuan, Tu, Guan Heng, Yeoh, and Chaoqun, Liu, "Computational Fluid Dynamics, a Practical Approach", 3rd Edition, Butterworth-Heinemann, (2018).
 
[13]   Menter, F.R., and Egorov, Y., "A Scale Adaptive Simulation Model using Two-equation Models", 43rd AIAA Aerospace and Sciences Meeting and Exhibit, Reno, Nevada, USA, Paper 2005-1095, (2005).
 
[14]   Menter, F.R., and Egorov, Y., "Development and Application of SST-SAS Turbulence Model in the DESIDER Project", Second Symposium on Hybrid RANS-LES Methods, Corfu, Greece, (2007).
 
[15]   McNaughton, J., Afgan, I., Apsley, D. D., Rolfo, S., Stallard, T., and P. Stansby, K, "A Simple Sliding-mesh Interface Procedure and its Application to the CFD Simulation of a Tidal-stream Turbine", Int. J. for Numerical. Methods in Fluids, Vol. 74, pp. 250-269 (2014).
 
[16]   Bernard, P.S., "Limitations of the Near-Wall k-ε Turbulence Model", AIAA Journal, Vol. 24, pp. 619-622, (1986).
 
Volume 22, Issue 2 - Serial Number 59
Fluid Mechanics and Heat Transfer
June 2020
Pages 6-25
  • Receive Date: 12 November 2018
  • Revise Date: 07 January 2020
  • Accept Date: 08 November 2020