Here the coal is conveyed to a mill and crushed into a fine powder, this being termed
as pulverization. The pulverized coal is blown into the boiler where it mixes with the
supply of air for combustion. Heat is transferred to steam pipes located in the top
region of the boiler, these being initially fed with hot water from the boiler feed
pump; the hot water then gets converted to steam at high temperature and pressure.
This steam is fed to the steam turbines which are the prime movers for electric
generators.
In a nuclear power plant binding energy of a nucleus is released by fission, which
means breaking the nucleus into smaller fragments. Here one gram of the nucleus of
uranium is isotope 235U releases energy at the rate of 1 MW/per day whereas 2.6 tons
of coal produces the same amount of power in a conventional thermal power plant.
The process of fission is carried out in a nuclear reactor. Thus the nuclear reactor is a
very efficient source of energy because a small amount of fissile material produces a
large amount of energy.
gregorymasila answered the question on February 20, 2018 at 16:06
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