Temperature of a furnace fired with low calorific value fuel gas (i.e. lean
gas) can be increased by
(A) Preheating the combustion air
(B) Oxygen enrichment of combustion air
(C) Preheating the fuel gas
(D) All (A), (B) & (C)
gas) can be increased by
(A) Preheating the combustion air
(B) Oxygen enrichment of combustion air
(C) Preheating the fuel gas
(D) All (A), (B) & (C)