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STUDY OF CO-GEN POWER PLANT
ABSTRACT
The every infringing use of electric power for domestic power, commercial &industrial purpose necessitates providing bulk electric power economically. This is achieved with the help of suitable producing units, known as POWER PLANTS or ELECTRIC POWER GENERATING STATIONS
The highlights of our project constitute the following phases:
Firstly, it involves a brief introduction about cogeneration power plant, selection of plant site, its advantages and disadvantages and about fuels used in the plant.
Secondly, it involves a study of boiler and axillaries, turbines, synchronous generator and brushless type exciter.
Lastly, it involved a study regarding protection of alternators and transformers.
INTRODUCTION

Energy provides the power to progress. The natural resources of a country may be large but they can only be turn into wealth if they are developed use and exchanged for other good. This cannot be achieved without energy.
As a country develops the pattern of its energy usage under goes a distinct change. Though in a simple society it almost a consumer good, its effective use is small and contribution to the development of economy negligible. However once energy is made available in excess of domestic needs it has been found that it is not used solely as a consumer good but becomes a factor of production.
The dependence on electricity is so much that is has become a part and parcel of our life. The every infringing use of electric power for domestic, commercial & industrial purpose necessitates providing bulk electric power economically. This is achieved with the help of suitable producing units, known as POWER PLANT or ELECTRIC POWER GENERATING STATIONS.
A generating station essentially employees a prime mover coupled to an alternator for the production of electric power. The prime mover (E.g. steam turbines, steam engines, water turbines etc.,) converts mechanical energy of the prime-mover into electric energy. The electrical energy produced by the generating station is transmitted and distributed with the help of the conductors to various is transmitted and distributed with the help of the conductors to various is transmitted and distributed with the help of the conductors to various consumers. It may be emphasized here that a part from prime mover alternator combination, a modern generating station employs several auxiliary equipment and instruments to ensure that cheap reliable and continuous service.




CHAPTER-2
SELETION OF PLANT SITE

The following points should be considered while selecting a site for a steam power station.
1. Supply of water:
The steam amount of water is required for the condensers: therefore, such a plant should be located at bank of river or near a canal to ensure the continuous supply of water.
2. TRANSPORTATION OF FACILITIES:
A modern steam power station often requires the transportation of material and machinery. Therefore adequate transportation facilities must exist.
3. Cost and type of land:
The steam power station should be located at a place where level land is cheap and further extension, if necessary is possible. Moreover, the bearing capacity of the ground should be adequate so they heavy equipment could be installed
4. Nearness to load centers:
In order to reduce the transmission cost the plant should be located near the load center. This is particularly important of D.C supply system is adopted. However if A.C supply system is adopted this factor becomes relatively less important. It is because A.C power can be transmitted at high voltage with consequent reduced transmission cost.
5. Distance from populated area:
A huge amount of coal is burnt a steam power station, therefore, a smoke and fumes pollute the surrounding areas. This necessitates that the plant should be located at the considerable distance from polluted areas.





Advantages:
• Fuel used is cheaper:
• Less space is required in comparison with that for hydro electric plants.
• Cheaper in initial cost comparison with other types power stations of same capacity.
• Cheaper in production cost in comparison with that of diesel power station. Such plants can be installed at any place irrespective of the existing of fuels, while hydro electric plants can be developed only at the source of water power. Such plants can be located near the coal centers. While the hydro electric plants have essentially to be installed at the source of power which is usually located from urban areas.

Disadvantages:
• Costlier in running cost in comparison with that of hydro electric plants. Atmosphere is polluted by fumes and residue from pulverized


ABSTRACT[/b]
The every infringing use of electric power for domestic power, commercial &industrial purpose necessitates providing bulk electric power economically. This is achieved with the help of suitable producing units, known as POWER PLANTS or ELECTRIC POWER GENERATING STATIONS
The highlights of our project constitute the following phases:
Firstly, it involves a brief introduction about cogeneration power plant, selection of plant site, its advantages and disadvantages and about fuels used in the plant.
Secondly, it involves a study of boiler and axillaries, turbines, synchronous generator and brushless type exciter.
Lastly, it involved a study regarding protection of alternators and transformers.
INTRODUCTION
Energy provides the power to progress. The natural resources of a country may be large but they can only be turn into wealth if they are developed use and exchanged for other good. This cannot be achieved without energy.
As a country develops the pattern of its energy usage under goes a distinct change. Though in a simple society it almost a consumer good, its effective use is small and contribution to the development of economy negligible. However once energy is made available in excess of domestic needs it has been found that it is not used solely as a consumer good but becomes a factor of production.
The dependence on electricity is so much that is has become a part and parcel of our life. The every infringing use of electric power for domestic, commercial & industrial purpose necessitates providing bulk electric power economically. This is achieved with the help of suitable producing units, known as POWER PLANT or ELECTRIC POWER GENERATING STATIONS.
A generating station essentially employees a prime mover coupled to an alternator for the production of electric power. The prime mover (E.g. steam turbines, steam engines, water turbines etc.,) converts mechanical energy of the prime-mover into electric energy. The electrical energy produced by the generating station is transmitted and distributed with the help of the conductors to various is transmitted and distributed with the help of the conductors to various is transmitted and distributed with the help of the conductors to various consumers. It may be emphasized here that a part from prime mover alternator combination, a modern generating station employs several auxiliary equipment and instruments to ensure that cheap reliable and continuous service.
CHAPTER-2
SELETION OF PLANT SITE
The following points should be considered while selecting a site for a steam power station.
1. Supply of water:
The steam amount of water is required for the condensers: therefore, such a plant should be located at bank of river or near a canal to ensure the continuous supply of water.
2. TRANSPORTATION OF FACILITIES:
A modern steam power station often requires the transportation of material and machinery. Therefore adequate transportation facilities must exist.
3. Cost and type of land:
The steam power station should be located at a place where level land is cheap and further extension, if necessary is possible. Moreover, the bearing capacity of the ground should be adequate so they heavy equipment could be installed
4. Nearness to load centers:
In order to reduce the transmission cost the plant should be located near the load center. This is particularly important of D.C supply system is adopted. However if A.C supply system is adopted this factor becomes relatively less important. It is because A.C power can be transmitted at high voltage with consequent reduced transmission cost.
5. Distance from populated area:
A huge amount of coal is burnt a steam power station, therefore, a smoke and fumes pollute the surrounding areas. This necessitates that the plant should be located at the considerable distance from polluted areas.
Advantages:
• Fuel used is cheaper:
• Less space is required in comparison with that for hydro electric plants.
• Cheaper in initial cost comparison with other types power stations of same capacity.
• Cheaper in production cost in comparison with that of diesel power station. Such plants can be installed at any place irrespective of the existing of fuels, while hydro electric plants can be developed only at the source of water power. Such plants can be located near the coal centers. While the hydro electric plants have essentially to be installed at the source of power which is usually located from urban areas.
Disadvantages:
• Costlier in running cost in comparison with that of hydro electric plants. Atmosphere is polluted by fumes and residue from pulverized