Table 9 Relative internal efficiency, mechanical efficiency, and power generation efficiency of steam turbines
From: Prime Movers
Efficiency | Turbine rated power(kW) | ||
|---|---|---|---|
750Â ~Â 6000 | 12,000Â ~Â 25,000 | 50,000 | |
Relative internal efficiency of steam turbine | 0.7Â ~Â 0.8 | 0.75Â ~Â 0.85 | 0.85Â ~Â 0.87 |
Mechanical efficiency of steam turbine | 0.95Â ~Â 0.98 | 0.97Â ~Â 0.99 | ~0.99 |
Generator efficiency | 0.93Â ~Â 0.96 | 0.96Â ~Â 0.97 | 0.98Â ~Â 0.985 |