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
Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by______________________?
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