University College of Engineering, RTU, KotaA

Presentation on

Kota Super Thermal Power Plant

By- Lekhraj MeenaC.R. No. : 12/042Dept. of Electrical Engineering, UCE, RTU, Kota

Submitted to- Dr. Annapurna BhargavaAssociate Professor,Dept. of Electrical Engineering, UCE, RTU, Kota

Introduction of Kota Super Thermal Power Plant It was established in 1983. It is located at the left bank of the Chambal river at the upstream of the Kota Bairage. 1st and 2nd units are of 110 MW each. 3rd, 4th and 5th units are of 210 MW. 6th and 7th units are of 195 MW.Total generation capacity : (110+110+210+210+210+195+195)=1240 MW. Favorable conditions :

Abundant quantity of clean cooling water. Good transport facility.Concentration of load in Kota region due to large

number of industries.

Stage Unit Number Installed Capacity (MW) Date of Commissioning Status

Stage I 1 110 January 1983 Running

Stage I 2 110 July 1983 Running

Stage II 3 210 September 1988 Running

Stage II 4 210 May 1989 Running

Stage III 5 210 March 1994 Running

Stage IV 6 195 July 2003 Running

Stage V 7 195 May 2009 Running

Installed Capacity

Installed Capacity

Main Parts of Kota Super Thermal Power Plant•Principal

• Layout• Coal handling Plant• Boiler • Super Heater• Steam Turbine• Economizer• Generator • Water Treatment Plant• Ash Handling Plant• Control Room

The principle of a classical Power Plant

Technical Layout of Kota Super Thermal Power Plant

Coal Handling Plant

•Wagon unloading system•Crushing system•Conveying system

Coal handling plant section

Wagon Unloading System•Unload the coal from wagon to hopper with the help of wagon Tripler .• Hopper allow to pass coal pieces ≤ 200 mm.• From hopper coal falls on vibrator which is supported by roller.

Conveying System• Belt are used to convey coal from coal handling plant to furnace.• Specification:-

Belt width : 1400 mm Speed : 2.2 m/sec Total install power : 360

KW Capacity : 1350/750

ton/hr No. of conveyor: 38

Crushing System• CRUSHER HOUSE: It consists of crushers which are used to crush the coal to 20 mm size.• Two Types

Primary crusher• Rail crusher • Rotary crusher

Secondary crusher

Boiler• It is a closed vessel in which water under pressure is converted into steam.• Hot water or steam used to transfer heat to a process.• A boiler is always designed to absorb maximum amount of heat released in process of combustion.• Furnace: It is a primary part of boiler where the fuel is burnt to liberate the heat energy.

Thermal energy by

combustion

Chemical energy of fuel

Boiler

Super heater

• Super Heater consists group of tubes.

• The tubes are heated by the heat of combustion gases during their passes from furnace to chimney, so the temperature increased.

• Super heater remove the moisture from the steam leaving from the boiler tubes.

Steam Turbine•It is a machine in which a shaft is rotated steadily by reaction of steam, air upon blades of a wheel.

• When steam is used then it is called steam turbine.

• It works on modified rankine cycle.

Mechanical EnergyKinetic Energy

Economizer

• Economizer is a device which recover heat from the flue gases on their way to chimney.

• It increases the 10-12 % efficiency of the plant.

Electrical Generator • An electrical generator is a

machine which converts mechanical energy into electrical energy through electro mechanical energy conversion.• The generator is driven by

directly coupled steam turbine at a speed of 3000 r.p.m.

Electrical Energy

Mechanical Energy

Generating Transformer

Water Treatment Plant Pressure filter removes

undisclosed impurities from raw water.

Carbon filter removes excess chlorine from clarified water.

D.M. plant removes dissolved impurities from clarified water.

Conductivity, pH & silica content of this water must be checked time to time.

D.M. water must be in ratio of 1:8

Cooling System

• In KSTPS hydrogen cooling system is employed for generator cooling.• Hydrogen used because of its superior cooling properties and low density. Thermal conductivity of H2 7.3 times of air.• Seal oil system are used in turbine for less friction in bearing.• Water cooling also used for any kind of fire.

Ash Handling Plant

•It can be subdivided into 3 sub plants :• Fuel and ash plant• Air and Gas plant• Ash disposal and dust

collection plant.

•In thermal plants 25% is furnace bottom ash and 75% is pulverized fuel ash.• Electrostatic precipitator in ash handling plant to remove fly ash .

Ash Handling

Control Room

Thank You…!!

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