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Doctors Medicines MCQs Q&A

  1. Initial cost less
  2. Less space
  3. Atmospheric pollution is less
  4. Fuel (coal) is cheap
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Option 3 : Atmospheric pollution is less

Thermal Power Plant (Steam Power Station):

  • It converts the heat energy of coal combustion into electrical energy.
  • A steam power station basically works on the Rankine cycle.
  • Steam is produced in the boiler by utilizing the heat of coal combustion.
  • The steam is then expanded in the prime mover (i.e., steam turbine) and is condensed in a condenser to be fed into the boiler again.
  • The steam turbine drives the alternator which converts the mechanical energy of the turbine into electrical energy.
  • This type of power station is suitable where coal and water are available in abundance and a large amount of electric power is to be generated.
     

Advantages:

  • The fuel (i.e., coal) used is quite inexpensive.
  • Less initial cost as compared to other generating stations.
  • Less space is required as compared to the hydropower plants.
  • It can be installed at any place irrespective of the existence of coal.
  • The coal can be transported to the site of the plant by rail or road.
  • It requires less space as compared to the hydroelectric power station.
  • The cost of generation is lesser than that of the diesel power station.
  • The power plant is able to withhold the changing rapidly load.
     

Disadvantages:

  • It pollutes the atmosphere due to the production of a large amount of smoke and fumes.
  • It is costlier in running or operating costs as compared to the hydroelectric plant and nuclear plant.
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