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power plants ppt
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TYPES OF POWER PLANTS
Wind power plants (1No-1MW)
Solar power plant (1No-2MW)
Hydel-power plant (22No-42240MW)
Thermal power plant(6No-7900MW)
The installed capacity of APGENCO on 31.07.2012 is 8924.9 MW.Comprising 5092.5 MW Thermal, 3829.4 MW Hydro, 2 MW Wind power stations and 1 MW solar power. It contributes about half the total Energy Requirement of AP. APGENCO is third largest power generating utility in the Country next to NTPC & MAHAGENCO. It installed a Hydro capacity of 3664.4 MW and is the second highest among the Country.
INTRODUCTION
With the world on a development , there is shortage of power in most places while the demand seems to be in a never ending . There are several answers to this challenge such as the nuclear power
plants, but the conventional thermal power
plants also play an equally important role in this power generation..
CLASSIFICATIONTHERMAL POWER PLANTS ARE CLASSIFIED BY THE TYPE OF FUEL AND THE TYPE OF PRIME MOVER INSTALLED
By fuel Nuclear power plants Fossil fuelled power plants Biomass fuelled power plants Solar thermal By prime mover Steam turbine Gas turbine Combined cycle Reciprocating engines Micro turbines , stirling engine
NEED FOR THERMAL POWER GENERATION
Scarcity of water resources
Widely available alternate fuels
Maintenance and lubrication cost is lower
Coal is abundant
Working fluid
GENERAL LAYOUT OF THERMAL POWER PLANT
The layout of steam power plant is shown in the above figure.
It consist of four main circuits they are:
1.Coal and Ash circuit
2.Air and flue gas circuit
3.Water and Steam circuit & 4.Cooling water circuit
DETAILED PROCESS OF POWER GENERATION IN A THERMAL POWER PLANT:
Water intake
Boiler heating
Steam Turbine
Generator
Special mountings
Ash collection system
Other monitoring instruments
ADVANTAGES OF THERMAL POWER PLANTS
Initial cost & Fuel
Less space & can be Install at any place
Cost of generation
Maintenances and lubrication cost Nature's mercy
construction and commission time
DISADVANTAGES OF THERMAL POWER PLANT Air pollution
Starting time & Efficiency
Transportation of fuel
Power generation cost
Requires skilled manpower
Life of the plant
FUTURE PROSPECTS
Accelerating the Development of CO2 Capture and Storage Technology is the Key to Realize Next-generation Power Generation System.
Preventive Maintenance Technologies that Support the Long-term, Stable Operation Facilities and Extension of the Service Life of High-temperature Gas Turbine Parts.