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TRAINING SEMINAR Training carried at: Kota super thermal power station Submitted to : Vedant College of Engineering and Technology SUBMITTED BY :- CHANDRESH PAL SINGH

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Kota super thermal power station

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KSTPS: A SUMMARY Location KOTA(RAJASTHAN) Installed Capacity 1240MW Cooling Water Source Of Cooling Water Kota Barrage (Chambal River) Coal Type Bituminous Coal Linked Coal Mines SECL (Korea- Rewa & Korba ) & NCL ( Singrauli ) Average Ash Content 28-32% Steam Generator M/s.( bharat heavy electrical limited )BHEL make Turbo Generator M/s. BHEL make Coal Handling Plant Stock Yard Capacity 5,00,000 MT Wagon Tipplers 5 Nos. Coal Crushers 10 Nos. Conveyor System 1.595 KMs. Transmission Lines Power evacuation through 11 Nos. 220 KV outgoing feeders.

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KSTPS’ DESIGN: VARIOUS STAGES O F INSTALLATION AND COMMISSIONING OF UNITS STAGE I II III IV V VI VII SYNCHRONIZATION Unit I: January 20, 1983 Unit II: August 5, 1983 Unit III:December11,1988 Unit IV: October 16, 1989 Unit V: October 10, 1994 Unit VI: July 30, 2003 Unit VII: May 30, 2009 COMMISSIONING Unit I: April 1, 1983 Unit II: April 1, 1984 Unit III: March 11, 1989 Unit IV: March 6, 1990 Unit V: July 18, 1995 Unit VI: June 21, 2004 Unit VII: July 05, 2009 CAPACITY 110 MW 110 MW 210 MW 210 MW 210 MW 195 MW 195 MW COST (RS. CRORE) 143 480 480 635 961

Main Part Of Kota Super Thermal Power Plants:

Layout Coal handling plant Boiler Super heater Steam turbine Economiser Generator Generating transformer Cooling system Ash handling plant Main Part Of Kota Super Thermal Power Plants

Coal handling plant :

Coal handling plant Coal delivery Unloading Preparation Transfer Outdoor storage (dead storage Covered storage (live storage) In plant handling weighing and measuring Furnace

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Coal delivery :- The coal is delivered by rail or trucks to the power stations. Unloading :- the coal is brought by railway wagons, the unloading may be done by rotary car dumpers, cranes, grab buckets and coal accelerators. Preparation :- coal delivered is in the form of big lumps and it is not of proper size preparation (sizing) of coal can be achieved by crushers, breakers, sizers driers and magneticseparators

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Transfer :- After preparation coal is transferred Belt conveyors, Screw conveyors, Bucket elevators, Grab bucket elevators, Skip hoists, Flight conveyor In Kota super thermal power station use belt conveyors Outdoor (Dead) Storage:- sufficient quantity of coal should be stored . coal can be purchased and stored for future use. Kota super thermal power station has capacity to store 15 days coal stock Indoor (Live) Storage :- Such storage constitutes coal requirements of the plant for a day. The live storage can be provided with bunkers and coal bins.

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In Plant Handling :- This refers to handling of coal between the final storage to the firing equipment. In case of simple stoker firing only chutes may be required to feed the coal from storage bunker to firing units. Coal Weighing :- very necessary to weigh coal at unloading point and also that used as feed to individual boilers A correct measurement of coal enables one to have an idea of total quantity of coal delivered at the site and also whether or not proper quantity has been burned as per load on the plant

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FUELS - COAL Type Calorific Value Qty. Used Ash contents Sulphur contents Type of Handling Stack Coal. 3300 KCal /Kg. 80 t/hr., 140 t/hr. 40% 0.5% Belt Conveyor

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ENERGY GENERATED IN KSTPS Total generation Capacity - (2*110) + (2*210) + (1*210) + (1*195) + (1*195) = 1240MW   Total generated Electricity (in one hour) - 1240MW * 1=12.40 Lakh units   Total generated Electricity (in 24hours) – 12.40 * 24= 297.60 Lakhs units   Amount of Coal required (per day) in KSTPS - 0.5 * 297.60 * 100000 Kg. = 148.80 x 100000 Kg . = 14.88 million Kg.

Boiler :

Boiler Arrangement of Boiler Auxiliaries

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Need of Draft System Boiler Combustion Air Flue Gases Air needed for combustion Flue are needed to be evacuated Losses due to flow need to be overcome

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BOILER Type No. of units Max. efficiency Capacity. Steam Pressure Steam Temp. Tangentially fired natural circulation, balance draft, direct fired radiant reheat, water tube boiler. 7 BHEL (86.6 + 1) % 375 t/Hr., 710 t/hr. (110 MW) / (210 MW) 139 Kg/cm 2 / 150 Kg/cm 2 540 o C

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