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Power Plant Based on Thermal Energy

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  • Key Points: Power Plant Based on Thermal Energy
Maharashtra State Board: Class 10

Key Points: Power Plant Based on Thermal Energy

  1. Working Principle: Thermal power stations use steam to rotate turbines. Steam is generated by heating water using thermal energy from burning coal.
  2. Energy Conversion: Chemical energy in coal → Thermal energy → Kinetic energy in steam → Kinetic energy in turbine → Electrical energy via generator.
  3. Steam Recirculation: After rotating the turbine, steam is cooled in a condenser and converted back to water, which is then re-circulated to the boiler.
  4. Environmental Impact: Burning coal releases harmful gases (CO₂, SOx, NOx) and soot, causing air pollution and respiratory issues.
  5. Limitations: Coal reserves are limited, and dependence on them for electricity poses long-term sustainability issues.

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