1147Chemical EngineeringMedium
Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature?
AFlame temperature achieved
BSpeed of combustion of fuel
CHeat transfer rate to the stock in the furnace
DCalorific value of the fuel
Correct answer
D. Calorific value of the fuel
Explanation
The correct answer is Calorific value of the fuel.