Fuels and Combustion Volumetric ratio of N₂ to O₂ in dry atmospheric air is 4.76 3.76 0.79 0.21 4.76 3.76 0.79 0.21 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke Should have high porosity Should be brittle Should have low fusion point of its ash Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have high porosity Should be brittle Should have low fusion point of its ash Must contain moderate quantities of ash, moisture, sulphur and volatile matters ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C. 1400-1500 400-500 900-1000 1700-1800 1400-1500 400-500 900-1000 1700-1800 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as M = 1.8 A M = A M = 1.1 A M = 0.5 A M = 1.8 A M = A M = 1.1 A M = 0.5 A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas constitutes mainly of CH₄ & N₂ CO & CO₂ CO & N₂ CH₄ & CO₂ CH₄ & N₂ CO & CO₂ CO & N₂ CH₄ & CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main drawback of supplying more excess air in the combustion of fuel is the Excessive power requirement of air blower High exit flue gas temperature from the furnace Intermittant and uncontrolled combustion of the fuel Enhanced sensible heat loss in the flue gas Excessive power requirement of air blower High exit flue gas temperature from the furnace Intermittant and uncontrolled combustion of the fuel Enhanced sensible heat loss in the flue gas ANSWER DOWNLOAD EXAMIANS APP
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