unit by unit and step by step
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Coal is heated till it turns into coke. This coke is then burnt, the heat generated boils water which turns into steam and turns turbines which spin magnets to produce electricity. The water is then cooled down by releasing its leftover heat into the atmosphere or a water body and the process continues.
In boiler, the coal is heated. The coal heats water passing through the boiler, creating high-temperature, high pressure steam. In a turbine, the high-temperature, high pressure steam is further compressed by the turbine nozzle, turning the turbine rotor. The turbine rotor shaft speed is limited to a specific RPM by a valve upstream of the turbine. The turbine shaft has magnets connected to it, which create an electric field, generating 3-phase AC. The steam leaves the turbine, goes through a condenser (using cooling water), the condensate (water) leaves the condenser. A pump adds energy to the water, moving it back to the boiler.
It's Quite simple and it involves 5 basic units 1.Coal Mines-First of all coal is required produce the required heat.Coal is extracted from the coal mines using large machines called the bucketwheel excavators.Usually power generating stations are located near coal mines to reduce transporatation costs.
