Question

Why is it necessary to control burning in different areas of travelling grate stoker?

(a) Minimize the coke carried into ash pit

(b) To avoid the smoke

(c) To form a maintain temperature throughout the stoker

(d) To get the proper efficiency

The question was asked in exam.

The origin of the question is Type of Stokers topic in chapter Steam Power Plant of Energy Engineering

Answer 1

Correct option is (a) Minimize the coke carried into ash pit

Best explanation: The operator controls rate of burning in different zones to minimize the coke carried over to ash pit. The coal supplied to the grate is regulated either by varying depth of coal on the grate with the help of grate valve and by varying the rate of grate travel.