2. Effect of Reheating and Feed Water Heating on Steam Generation P M V Subbarao Professor Mechanical Engineering Department Good to Turbine and Cycle….. What about Steam Generator ???

4. Effect of Reheat Pressure  p rh /p max 0.20.40.60.8 1.0 ~0.3

5. Selection of Optimal Reheat Point

6. Reheat Supercritical Rankine Cycle 1 2 2s 3 4 5 6

7. Reheating : A Means to implement High Live Steam Pressure Improvement in Efficiency, % 593/621 0 C 593/593 0 C 565/593 0 C 565/565 0 C 538/565 0 C 538/538 0 C Supercritical

8. Single-Reheat Ultrasupercritical Product Line GE Power

9. Super Critical Cycle ~ 1990

10. Double Reheat Ultra Super Critical Cycle 8

11. Reheater Pressure Optimization for Double Reheat Units

12. Improvement in Efficiency, %

13. Scope for Double Reheat in Ultra CriticalCycles 538 0 C 610 0 C 538 0 C P,bar 350150

14. Super Critical Cycle of Year 2005

15. Double Reheat Super Critical Plants Net efficiency on natural gas is expected to reach 49%. Net efficiency on coal is expected to reach 47%.

16. Super Critical Cycle of year 2010 > 50 %

17. Double-Reheat Ultrasupercritical Product Line GE Power

18. Ultra Supercritical Installations of The World

19.   C   C   C   C Reassessment Thru Carnot Model

21.  s        Non-Isentropic Expansion !!! A Macro Carnot Cycle !!!!

22. Ideal Regenerative Cycle      

23. Regenerative Turbine Regenerative heat transfer. Change in kinetic and potential energies are negligible 3 4 T  ssuming a single fluid entering and leaving…

24. Analysis of Regeneration Cycle  s       