Aerodynamic Optimization Design of a Multistage Centrifugal Steam Turbine and Its Off-Design Performance Analysis

Table 4

The main geometrical parameters of the centrifugal turbine.

Stage number	1st	2nd	3rd
Stator inlet diameter (m)	0.597	0.758	0.959
Rotor outlet diameter (m)	0.754	0.955	1.208
Radial clearance (m)	0.002	0.002	0.002
Blade height (m)	0.03	0.03	0.03
Symmetrical cone angle (degree)	0	0	0
Diameter ratio of stator	1.12	1.12	1.12
Diameter ratio of rotor	1.12	1.12	1.12