The diagram below shows how one type of coal is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram illustrates the process of generating

electricity

from a specific type of coal. The entire procedure involves several stages, including mining, crushing, transportation, gasification, cooling, cleaning, and

electricity

production, before delivering

electricity

to end users

such

as households and factories.

Initially

, coal is extracted from the mine and crushed into smaller pieces to facilitate transport. The crushed coal is

then

sent to a gasifier, where

heat

and

gas

are generated. The produced

gas

is cooled, during which waste

heat

is emitted, and the remaining

gas

undergoes a purification process. After purification, the

gas

is directed to

gas

plants, which

also

release waste

heat

,

while

the purified

gas

is converted into

electricity

.

This

electricity

is

then

stored in power stations and distributed to households and businesses for usage. The cycle repeats continuously to ensure a consistent supply of

electricity

to power appliances and factories. Key comparisons include the steps of purification and waste

heat

emission at both the cooling and

gas

plant stages, indicating energy losses during the process. The ultimate aim is to ensure that purified

gas

is used efficiently to meet

electricity

demand.