2. Steam turbines: classification Central station turbine Reheating turbine Superposed or topping turbines Back pressure type steam turbine Bleeder or extraction turbines extraction-induction turbines

3. Compounding of steam turbine Velocity compounding Pressure compounding Combined velocity pressure compounding

4. Steam nozzles Convergent-divergent typeConvergent type

5. Fuels Liquid Gas Solid

6. Classification of coals: It can be classified in increasing order of heat or calorific value, namely peat, lignite, sub-bituminous, bituminous, semi-bituminous, anthracite an super anthracite coals.

7. Selection of coal power plant Calorific value Weatherabilty Sulpher Ash Requirments Size Grindability index

8. coal Indian coal Imported coal Liquid fuels Gaseous fuels

9. Fuel handling Transportation and delivery of coal Methods of coal handling: Unloading Transfer to dead storage or preparation plant Dead storage Reclaimation Live storage Inplant handling Coal weighing Reclaimation Live storage Input handling Coal weighing enables

10. Fuel combustion and combustion equipment Mainly 2 ways of firing: Solid fuel firing Pulverised fuel firing Solid fuel firing 2 general methods: Hand firing Stoker or mechanical firing