Fuels and Combustion The main function of primary air in pulverised coal fired burner is to Preheat the tertiary air used for complete combustion of CO to CO₂ Burn CO to CO₂ Dry and transport the coal Have proper combustion by supplying it around the burner Preheat the tertiary air used for complete combustion of CO to CO₂ Burn CO to CO₂ Dry and transport the coal Have proper combustion by supplying it around the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Function of secondary air in pulverised coal firing is to Reduce primary air requirement Ensure efficient burning of coal around the burner Dry the coal Transport the coal to the burner Reduce primary air requirement Ensure efficient burning of coal around the burner Dry the coal Transport the coal to the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around __________ percent. 40 4 20 96 40 4 20 96 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value as determined by bomb calorimeter is the Gross calorific value at constant pressure Lower calorific value at constant pressure Higher calorific value at constant volume Net calorific value at constant volume Gross calorific value at constant pressure Lower calorific value at constant pressure Higher calorific value at constant volume Net calorific value at constant volume ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Very __________ coals are completely devoid of cokability i.e, it is non coking. Mature Neither A nor B Young Both A & B Mature Neither A nor B Young Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gross heating value of coal is __________ the net heating value. Higher than None of these Same as Lower than Higher than None of these Same as Lower than ANSWER DOWNLOAD EXAMIANS APP
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