27-12-2012, 06:01 PM
STUDY OF POWER PLANT AT ARAWALI POWER COMPANY PVT. LTD.(NTPC JHAJJAR)
STUDY OF POWER PLANT.pptx (Size: 855.79 KB / Downloads: 36)
ABOUT NTPC
NTPC Limited is the largest thermal power generating company of India. A public sector company, it was incorporated in the year 1975 to accelerate power development in the country as a wholly owned company of the Government of India. NTPC’s core business is engineering, construction and operation of power generating plants. It also provides consultancy in the area of power plant constructions and power generation to companies in India and abroad. NTPC has an installed capacity of 29,394 MW and plans to be a 75,000 MW company by2017. Today NTPC contributes to more than 3/5th of India's power generation.
There are 3 types of plants that comes under NTPC namely,
a) 15 coal based plants - 23,395 MW
b) 7 gas based stations - 3,955 MW
c) 4 joint ventures - 1,794 MW.
OVERVIEW OF APCPL
This Coal based Super Thermal Power Project is being Set up at Jhajjar. The Project is being executed by NTPC from concept to commissioning and subsequent Operation & Maintenance in Joint Venture with Government of Delhi and Government of Haryana. The MOU in this regard was signed between NTPC, Government of National Capital Territory (NCT), Delhi and Government of Haryana on 24.08.2006. The best efforts Commissioning Schedule of three Units under this Project is 35, 38 & 41 months. The Joint Venture Agreement for execution of this Project was signed on 14.12.2006 and the Joint Venture Company i.e. Aravali Power Company Pvt. Ltd. for execution of this Project, was formed on 21.12.2006.
WORKING OF A POWER PLANT
RANKINE CYCLE The Rankine cycle most closely describes the process by which steam-operated heat engines most commonly found in power generation plants generate power. The two most common heating processes used in these power plants are nuclear fission and the combustion of fossil fuels such as coal, natural gas, and oil.
The four processes in the Rankine cycle :-
There are four processes in the Rankine cycle. These states are identified by numbers (in brown) in the above Ts diagram.
Process 1-2: The working fluid is pumped from low to high pressure. As the fluid is a liquid at this stage the pump requires little input energy.
Process 2-3: The high pressure liquid enters a boiler where it is heated at constant pressure by an external heat source to become a dry saturated vapor. The input energy required can be easily calculated using mollier diagram or h-s chart or enthalpy-entropy chart also known as steam tables.
ELECTRIC GENERATOR
In electricity generation, an electrical generator is a device that converts mechanical energy to electrical energy, generally using electromagnetic induction. The reverse conversion of electrical energy into mechanical energy is done by a motor, and motors and generators have many similarities. A generator forces electric charges to move through an external electrical circuit, but it does not create electricity or charge, which is already present in the wire of its windings. It is somewhat analogous to a water pump, which creates a flow of water but does not create the water inside. The source of mechanical energy may be a reciprocating or turbine steam engine, water falling through a turbine or waterwheel, an internal combustion engine, a wind turbine, a hand crank, the sun or solar energy, compressed air or any other source of mechanical energy.
CONCLUSION
This report concludes what we have learned till 11th June 2012. The orientation programme gave us an incite about how a coal-based thermal power plant functions, even though most of the function are related electrical and mechanical department our common subject in the first two year of the college was really helpful in understanding basic principle. I hope to fulfill the project discuss to the best of my ability and hope to bring some useful changes that would help both the industry and the environment