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.

Given is a diagram depicting the process of

electricity

being generated from coal. Clearly,

this

is a complex process that requires a range of equipment and facilities. There are two main steps including

gas

generating and

electricity

production.

Firstly

, there is a preliminary step, in which the coal is being mined before crushed into smaller materials by some unique machines.

Then

follows the

gas

-generated

stage

after the coal is transported to the gasifier by trucks. In

this

stage

, coal is heated and generates

gas

.

Therefore

, there is a cooling

stage

to cool down the temperature of the

gas

, which

also

emits waste heat in

this

process. In the

electricity

generating

stage

, the

gas

firstly

is cleaned before being transferred to the power plant. After the cleaning step, the

electricity

was produced from

gas

. The

stage

of power production

also

makes waste heat during the period. In the end, the

electricity

was delivered to residential areas and other manufactural facilities.