Overfire burning" in a furnace is a phenomenon characterised by the
(A) Supply of excess fuel
(B) Supply of excess air
(C) Burning of carbon monoxide and other incombustibles in upper zone of
furnace by supplying more air
(D) None of these
(A) Supply of excess fuel
(B) Supply of excess air
(C) Burning of carbon monoxide and other incombustibles in upper zone of
furnace by supplying more air
(D) None of these