Experimental and Numerical Investigations of Surge Extension on a Centrifugal Compressor with Vaned Diffuser Using Steam Injection

Figure 8

Pressure perturbation analysis for streamwise locations.

(a) 90% speed without steam injection

(b) 90% speed with 120 kg/h steam injection

(c) 80% speed without steam injection

(d) 80% speed with 60 kg/h steam injection