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

Table 3

Boundary conditions of different materials.

Gas	Compressor mass flow (kg/s)	Injected gas static temperature (K)	Injected gas mass flow (kg/s)
Steam ideal gas	2.80	438	0.0333
N2 ideal gas	2.80	438	0.0416
CO2 ideal gas	2.80	438	0.0521