Fuels and Combustion In low temperature carbonisation of coal, the Yield of tar is about 3% of dry coal Temperature maintained is 700°C Volatile matter in coke is zero Yield of coke oven gas is 290 Nm³ /ton dry coal Yield of tar is about 3% of dry coal Temperature maintained is 700°C Volatile matter in coke is zero Yield of coke oven gas is 290 Nm³ /ton dry coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C. 550 to 650 700 to 850 100 to 150 350 to 450 550 to 650 700 to 850 100 to 150 350 to 450 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Nitrogen in coal All of these Is present upto 1-2% Is recovered as ammonia during its carbonisation Comes from protein in parent vegetable matter All of these Is present upto 1-2% Is recovered as ammonia during its carbonisation Comes from protein in parent vegetable matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Overfire burning in a furnace is a phenomenon characterised by the Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air None of these Supply of excess air Supply of excess fuel Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air None of these Supply of excess air Supply of excess fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Percentage of carbon monoxide in blast furnace gas may be around 52 14 22 8 52 14 22 8 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For every 10% increase in the excess air; the fuel consumption increases by __________ percent. 10 5 2 0.1 10 5 2 0.1 ANSWER DOWNLOAD EXAMIANS APP
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