Question

Higher efficiency in the combustion of solid fuel cannot be achieved by

• A. proper fuel preparation.
• B. adopting efficient-fuel firing technique & equipment.
• C. keeping the fuel gas exhaust temperature very high.
• D. supplying correct quantity of combustion air.

Answer 1

The correct option is C keeping the fuel gas exhaust temperature very high.

The combustion efficiency of any combustion process is dependent on the amount of oxidant (air) that is used in relation to the amount of fuel, and on how well they are mixed.