1. TURBO POWER Turbine Technology
Esa Utriainen
Siemens Industrial Turbomachinery AB

2. TURBO POWER turbine projects
First stage aero efficiency
Film cooling
Tip and hub cooling
Internal cooling hot turbine structures

3. Aerodynamics - our core competence

4. The optimal design is not the best design, - the best compromise is the best design

5. Always increasing temperatures and pressures - effect of temperature on cycle efficiency

6. Always increasing temperatures and pressures - effect of pressure on cycle efficiency

7. Always increasing temperatures and pressures - material technology

8. A tough environment
High power density, 340kW / blade for SGT800
Centrifugal load 32000G, Blade 1 0,8 kg becomes 26 ton in the engine.
High gas temperatures, Vane 1 inlet
Sensitive materials, every C increase equals halving the lifetime

9. First stage aero efficiency

10. Film cooling - cooling technology evolution

11. Film cooling

12. Tip and hub cooling Heat transfer coefficient on the blade tip
1.0% tip gap
1.5% tip gap
CFD, sqealer tip 2,5% gap
2.5% tip gap
Experiment
SST- k-

13. Tip and hub cooling

14. Internal cooling hot turbine structures