Fuel economy in an industrial furnace operation cannot be achieved by the use of__________________?
A. Stoichiometric combustion air
B. Non-preheated combustion air
C. Combustion air not enriched with oxygen
Overfire burning in a furnace is a phenomenon characterised by____________________?
A. Supply of excess fuel
B. Supply of excess airC. Burning carbon monoxide and other incombustible in upper zone of furnace by supplying
Turndown ratio of a burner gives an idea of the ______________ in the furnace?
A. Range of fuel firing rates
B. Volume of the combustion chamber
C. Maximum heat input rate only
D. Minimum heat input rate only…