Table 1: The main design parameters.

Mass flow [kg/s]1.8
Specific speed 0.70
Rotational speed [1/s]461
Impeller outlet radius [mm]271
Diffuser outlet radius [mm]542

Blade backsweep at the impeller outlet [°]40
Blade height at the impeller exit [mm]12.2
Diffuser height [mm]10.3
Number of full and splitter blades9 + 9