Fuels and Combustion Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature? Speed of combustion of fuel Heat transfer rate to the stock in the furnace Calorific value of the fuel Flame temperature achieved Speed of combustion of fuel Heat transfer rate to the stock in the furnace Calorific value of the fuel Flame temperature achieved ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Mixed gas' used in steel plants is a mixture of Coke oven gas and converter gas Coke oven gas and L.P.G Blast furnace gas and naphtha vapor F. gas and coke oven gas Coke oven gas and converter gas Coke oven gas and L.P.G Blast furnace gas and naphtha vapor F. gas and coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion When the coal is heated in absence of air, it is called its Coalification Carbonisation Deoxidation Gasification Coalification Carbonisation Deoxidation Gasification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the Requirement of large volume combustion chamber Chances of clinker formation Risk of explosion Incomplete combustion of coal Requirement of large volume combustion chamber Chances of clinker formation Risk of explosion Incomplete combustion of coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Weathering of coal during storage causes Increase in its friability Reduction in coal size All of these Decrease in its caking capacity Increase in its friability Reduction in coal size All of these Decrease in its caking capacity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas is stripped of its H₂S and mercaptans content by Adsorption on bog iron bed Adsorption on silica gel Bubbling it through dilute sulphuric acid Absorption in wash oil Adsorption on bog iron bed Adsorption on silica gel Bubbling it through dilute sulphuric acid Absorption in wash oil ANSWER DOWNLOAD EXAMIANS APP
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