Steam power plant
description
Transcript of Steam power plant
-
Chemical Energy Conversion into Electricity
-
Steam Power Plant Components
-
A steam power plant can perform two purposes:(A) Production of electric power only. (B) Production of electric power along with the production of steam for industrial purposes.
-
The industries in which the steam is used for different processing purposes are: Paper mills Textiles Sugar mills and refineries Chemical worksPlastic manufacture Food processing Laundries and hotels MetallurgyPlaces that use district heating.
-
Cogeneration Topping Cycle Bottoming Cycle
-
Arrangements for cogeneration in a topping cycle: (a) Steam-electric power plant with a back pressure turbine. (b) Steam-electric power plant with steam extraction from a condensing turbine. (c) Gas turbine power plant with a heat recovery boiler to generate process steam. (d) Combined steam-gas turbine cycle power plants. The steam turbine is either of the back pressure type or of the extraction-condensing type .
-
Cogeneration with extraction-condensing turbine
-
Exhaust-heat recovery steam gas plant
-
Classification of steam Power plants1. Central Stations2. Industrial Power Stations or Captive Power StationsBoth types can be non-condensing or condensing
-
Non-condensing steam power plant
-
Condensing steam power plant
-
A relative picture of the pressure and temperature conditions achieved
Working condition Pressure (MPa absolute) 35Temperature oC820Boiler capacity (lakhs of kg/hr) 16
-
Coal S-fired steam power plant
-
COM PONENTS OF A MODERN COAL-FIRED STEAM PLANT
Boiler Super-heater Reheater Economizer Air-heater
-
Steam TurbineGeneratorCondenserCooling TowersCirculating Water PumpBoiler Feed PumpWagon Tippler
-
9. Crusher House 10. Coal MillInduced Draught (I.D. Fans)Ash PrecipitatorsBoiler ChimneyForced Draught Fans (F.D. Fans)Water Treatment Plant
-
16. Switch Yard 17. Control Room