Question

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

• A. Supplying correct quantity of combustion air
• B. Keeping the flue gas exhaust temperature very high
• C. Proper fuel preparation
• D. Adopting efficient fuel firing techniques and equipments

Answer 1

The correct option is B Keeping the flue gas exhaust temperature very high

Higher efficiency in the combustion of solid fuel cannot be achieved by keeping the flue gas exhaust temperature very high because when flue gas temperature is high, then there is less heat transfer under the medium.