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CFD Analysis of Turbocharger Compressor to Study the Effect of Geometry Change on Surge and Performance of Compressor

Volume 14, Number 1, January 2018, pp. 9-16
DOI: 10.23940/ijpe.18.01.p2.916

Shubham Patil, Jagdish, Lokavarapu Bhaskara Rao

School of Mechanical and Building Sciences, VIT University, Chennai Campus, Chennai, 600127, India

(Submitted on July 19, 2017; First Revised on September 29, 2017; Second Revised on November 9, 2017; Accepted on November 29, 2017)

Abstract:

Turbocharger is used to increase the efficiency of an engine. In the turbocharger, a centrifugal compressor is used. Centrifugal compressor failure has been a main issue in recent years. The failure of the centrifugal compressor is because of surge and stall. Surge occurs because pressure at the receiver is greater than the pressure at the compressor. So, gas flow will reverse and surge occurs. This work-study is based on reducing surge and stall. We can prevent the tendency of surge and stall by changing the factors affecting the change in pressure. We can change the pressure by changing the density of gas, number of impellers, impeller diameter, inlet and volute geometry and flow regulation. Hence, in this paper, we perform the CFD analysis of the centrifugal compressor by changing the geometry.

 

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