This document discusses coal-based thermal power plants. It covers the Rankine cycle and improvements like reheating and regeneration that can be made. It also discusses the layout of power plants including the classification of different types of boilers like supercritical boilers and fluidized bed boilers. Finally, it examines the working of steam turbines, the different types of turbines including impulse and reaction turbines, and methods of governing turbine speed.

1. UNIT –I COAL BASED THERMAL POWER PLANT

2. ENERGY CONSUMED

3. LOCATION OF POWER PLANT

5. RANKINE CYCLE

6. IMPROVISATIONS OF RANKINE CYALE
1. Reheating
• Flue gas reheating
• Live steam reheating
• Combined flue gas and live steam reheating
2. Regeneration
• Ideal
• Single Stage
• Two Stage
3. Combined Reheating and Regeneration

7. REHEATING CYCLE

8. REHEAT CYCLE

9. REGENERATION CYCLE

10. REGENERATION CYCLE

11. REGENERATION CYCLE

12. Layout of Power plant

13. Classification of Boilers

14. Supercritical Boilers
1. Drum Type Boiler
2. Once through Boiler
Drum Type Boiler

15. Once-through Boiler

16. High Pressure Boilers
1. La- Mont FBB

17. 2. Benson Boiler

18. 3. Loeffler Boiler

19. 4. Velox Boiler

20. Fluidized Bed Boilers
1. Bubbling FBB

21. Fluidized Bed Boilers
2. Circulating FBB

22. Fluidized Bed Combustion (FBC)

23. WORKING OF STEAM TURBINE
THERMAL ENERGY
KINETIC ENERGY
MECHANICAL ENERGY
STEAM TURBINE
Nozzle
Moving Blades

24. IMPULSE AND REACTION TURBINE

25. STEAM TURBINE AND BLADES

26. CONSTRUCTION OF STEAM TURBINES

27. IMPULSE TURBINE

28. VELOCITY COMPOUND IMPULSE TURBINE

29. PRESSURE COMPOUND IMPULSE TURBINE

30. VELOCITY AND PRESSURE COMPOUND REACTION
TURBINE

31. THROTTLE GOVERNING

32. NOZZLE CONTROL GOVERNING

33. BY- PASS GOVERNING