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combine cycle power plant
- 1. PROJECT TRANING REPORT ON BHEL, BAWANA POWER PROJECT Session: 2014-2015 AJMER INSTITUTE OF TECHNOLOGY, AJMER SUBMITTED TO :- Mr. MOHAN RAMANANI H.O.D., Elec. Deptt. SUBMITTED BY :- TANUJ JHANKAL B.Tech. IV Yr.(Electrical & Electronics Engg.) Roll no. : 11EATEX027
- 2. INRODUCTION TO ORGANISATION :- • BHEL, is the largest engineering and manufacturing enterprise in India . • More than 65% of the electrical power in India is contributed by BHEL • BHEL manufactures almost all high technology products required.
- 3. ABOUT THE PROJECT :- • This is a COMBINED CYCLE POWER PLANT to generate 1500 MW of electrical power. • The gas turbines and steam turbines are the source of generation of power of rated capacity. • It is the highest rated combined cycle power project i.e. of 1500 MW. • plant is laced with all the latest power generation techniques.
- 4. The basic structure of the plant
- 6. DESIGN PRINCIPLE OF COMBINED CYCLE • Working principle of a combined cycle power plant (Legend: 1-Electric generators, 2- Steamturbine, 3- Condenser, 4-Pump, 5-Boiler/heatexchanger, 6-Gas turbine)
- 7. GAS TURBINE • Also called as Combustion turbine . • The gas turbine assembly contains six major sections. • Air inlet System • Compressor • Fuel Handling System • Combustion System • Turbine • Exhaust System • Lubricating System
- 9. Advantages of Gas Turbine Engines:- • Smaller in size. • Fewer moving parts . • Greater reliability . • Waste heat is dissipated almost entirely in the exhaust. • Low lubrication oil cost consumption. • High operating speeds.
- 10. Disadvantages of Gas Turbine Engines:- • Cost is very high. • Less efficient at ideal speed. • Less responsive to change in power demand.
- 11. HRSG • A HRSG is heat recovery steam generator. • An energy recovery heat exchanger. • The common applications for an HRSG: a) In a combined-cycle power station. b) In diesel engine combined cycle power plants. c) In cogeneration plants.
- 12. Modular HRSG • HRSGs consist of four major components: the economizer, evaporator, Super heater and water Pre heater.
- 13. STEAM TURBINE • A steam turbine is a device that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. • It is used to drive an electrical generator. • The of ST includes:- a) condensing b) non-condensing c) reheat, extraction .
- 14. BUSDUCT • It is used to carry voltage and current from transformer to other component like generator and switchgear.
- 15. ELECTRIC GENERATOR • It converts mechanical energy to electrical energy. • In this plant synchronous generators are used. • The main parts of a generator are: a) Mechanical parts : Rotor Stator b) Electrical parts : Armature Field
- 16. CIRCUIT BREAKERS • A circuit breaker is an automatically operated electrical switch. • It is designed to protect an electrical circuit from damage. • Once a fault is detected, contacts within the circuit breaker will open. • Some mechanically-stored energy is used to separate the contacts. • Although some of the energy required may be obtained from the fault current.
- 17. Static Starter • Static power converter is designed to provide an optimal match to the power. • Static starter is an adjustable speed ac drive system. • Specifically designed to start a gas turbine- generator set. • Provides optimum starting conditions for the gas turbine.
- 18. TRANSFORMER • A device that transfers electrical energy from one circuit to another. • The transformer is based on two principles: – An electric current can produce a magnetic field (electromagnetism). – Electromagnetic induction .
- 20. THANK YOU If you have any questions I am here to answer them.
Hinweis der Redaktion
- Set up in mid-fifties. . The wide network of BHEL‘s 14 manufacturing divisions, 8 service centers, 4 power sector regional centers, 18 regional offices and over 150 sites spread all over India &. Steam Turbines, Gas Turbines, Nuclear turbines, Generators, Boilers, Heat Recovery System Generators, Pump & Compressors, Heat Exchangers, and Control Instrumentation etc.
- worth up to Rs. 4,500 Corers has been taken up by the leading Public Sector Electrical Company of India, Bharat Heavy Electricals Ltd.(BHEL). plant is mainly designed to work on the principle of Combined Cycle generation plant . . The on-going project will be handed over by BHEL to the main client of the project, Pragati Power Corporation Ltd. (PPCL) on completion of work. project is an extension in third phase to the already functional Pragati Power stations that aim at providing quality power to the national capital.
- Process1-2(COMPRESSOR): is entropic ally compress air to increase its pressure and increases its temp in last stage due to heat dissipation of combustors in last stage Process2-3(combustor):air and fuel mixture is ignited and very high temp is attained at constant pressure. Process3-4(turbine):isentropic process in which thermal energy of gas with high temp is converted into mechanical energy with large drop of pressure and temp Process4-1(exhaust):heat output at constant pressure
- 1. Greater reliability particularly in application where sustained high power output is required. 2. Waste heat is dissipated almost entirely in the exhaust. This results in a high temperature exhaust stream that is very usable for boiling water in combined cycle or co-generation. 3.
- 1. HRSG is an energy recovery heat exchanger that recovers heat from a hot gas stream. 2. It produces steam that can be used in a process (cogeneration) or used to drive a steam turbine (combined cycle). 3.
- Evaporater is where the water is converted to steam. Lp and hp are low and high pressure section with a steam drum. Super heater used to incr. the temp. and pressure of the steam genrated and to pass the saturation point.
- 1. Condensing turbines are most commonly found in electrical power plants. These turbines exhaust steam in a partially condensed state, typically of a quality near 90%, at a pressure well below atmospheric to a condenser. 2. Non-condensing or back pressure turbines are most widely used for process steam applications. The exhaust pressure is controlled by a regulating valve to suit the needs of the process steam pressure. These are commonly found at refineries, district heating units, pulp and paper plants, and desalination facilities where large amounts of low pressure process steam are available. 3. Reheat turbines are also used almost exclusively in electrical power plants. In a reheat turbine, steam flow exits from a high pressure section of the turbine and is returned to the boiler where additional superheat is added. The steam then goes back into an intermediate pressure section of the turbine and continues its expansion.
- 1. The Isolated Phase Bus Duct is comprised of large aluminium tubes 2. The tubes form a protective enclosure to house the actual energized bus bar which is mounted on insulators. Each phase of the three phase system is isolated from the other two phases. This isolation minimizes the possibility of a short circuit (fault) involving all three phases 3. The inner and outer tubes have field welded connections 4. with expansion joints that allow for the thermal expansion and contraction of 5. both the conductors and housing tubes
- 1. Rotor: The rotating part of an electrical machine. 2. Stator: The stationary part of an electrical machine. 3. The power-producing component of an electrical machine. In a generator, alternator, or dynamo the armature windings generate the electric current. The armature can be on either the rotor or the stator. 4. The magnetic field component of an electrical machine. The magnetic field of the dynamo or alternator can be provided by either electromagnets or permanent magnets mounted on either the rotor or the stator. Because power transferred into the field circuit is much less than in the armature circuit, AC generators nearly always have the field winding on the rotor and the stator as the armature winding. Only a small amount of field current must be transferred to the moving rotor, using slip rings. Direct current machines (dynamos) require a commutator on the rotating shaft to convert the alternating current produced by the armature to direct current, so the armature winding is on the rotor of the machine.
- a changing magnetic field within a coil of wire induces a voltage across the ends of the coil (electromagnetic induction).