Conventional power generation, thermal, nuclear, gas turbine, hydro electric power plants, schematic, working, advantages and disadvantages, site selection

1. Conventional Power Generation: Steam power
station, Nuclear power plant – Gas turbine power
plant- Hydro power station: Schematic
arrangement, advantages and disadvantages,
Thermo electric and thermionic generators,
Environmental aspects for selecting the sites and
locations of power plants.
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2.  Conventional energy sources includes oil, gas and
coal.
 These conventional sources are usually fossil fuels.
 Their use leads to increased greenhouse gas
emissions and other environmental damage. These
sources of energy are also called non renewable
sources.
 These sources of energy are in limited quantity
except hydro-electric power. Conventional energy
directly mean the energy source which is fixed in
nature like oil, gas and coal.
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4.  Large amount of power can be generated by
using coal and nuclear etc.
 Transportation of oil and coal to the plant is
easy.
 Gas fired power plant are having great
efficiency.
 Fossil fueled power plant can be built almost
anywhere.
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5.  Fossil fuels are depleted once they used.
 They produce toxic and hazardous gases and
residues which are causing environmental
pollution.
 Power generation efficiency is less.
 As sources are remotely placed, there cost of
transmission is large.
 Maintenance cost is high.
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51. • Schematic arrangement,
• Advantages and disadvantages,
• Environmental aspects for selecting the
sites and locations of power plants.
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74. As of November 2020, India has 22 nuclear reactors in
operation in 7 nuclear power plants, with a total installed
capacity of 6,780 MW

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81. Gas Turbine Power Plant
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82. • Gas turbine electric power plant is a power plant in which a gas
turbine is used as the prime mover for the generation of
electrical energy.
• The principle of a gas turbine power plant is that a turbo-
compressor compresses working medium to a high pressure
and then it is burnt in the combustion chamber where the
combustion takes place at a constant pressure and
temperature of the working medium is raised. This high
pressure and high temperature working medium is then
expanded in a gas turbine coupled to the generator.
Gas Turbine Power Plant
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91. • Distance from Load Centre:
The site should be as near to the load centre as possible so that the trans-mission costs and
losses are minimized.
• 2. Availability of Land:
The land should be available at cheap rate in order to keep the capital cost of the plant low.
• 3. Availability of Fuel:
The fuel should be easily avail-able and at reasonable rate.
• 4. Availability of Transportation Facilities:
The transportation facilities should be available.
• Distance from Populated Area:
The site should be away from thickly populated area because of noisy operation.
• 6. Type of Land:
The land should be of high bearing capacity to withstand the load of the plant and also the
vibrations transmitted to the foundations from compressors and turbines.
Site selection criteria for Gas turbine power plants
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92. Hydro-electric Power Plant
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102. • Conventional Plants:
Conventional plants use potential energy from dammed water.
• Pumped Storage Plant:
In pumped storage plant, a second reservoir is constructed near the
water outflow from the turbine. When the demand of electricity is low, the
water from lower reservoir is pumped into the upper (main) reservoir.
• Run-Of-River Plant:
• In this type of facility, no dam is constructed and, hence, reservoir is
absent. A portion of river is diverted through a penstock or canal to the
turbine.
Types of hydropower plant
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107. • Availability of large amount of water
• Hilly area required for great flow
• Large Civil work
• Large catchment area
• Transportation facility
• Near to load center
• Earthquake free land
What are site selection criteria for selecting location of
hydro power plant?
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109. Environmental Impacts

110. •Damage to wildlife habitats and migratory
paths
•Land use
•Greenhouse gas emissions from reservoirs
Environmental Impacts

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Thank You
Dr. Sushma Pardeshi Singh,
Assistant Professor,
Department of Basic Science&
Humanities,
J.D. College of Engineering &
Management, Nagpur
Email- pardeshisushma@gmail.com