Answer / atul $onawane

The reduction in excess air means higher furnace temperature
which ultimately results in clinker formation,incomplete
combuton of fuel and results in higher operating cost.

Answer / anwar ashwak hussain

if we supply theoretical air it is not sufficient to
perform complete combustion. incomplete combustion leads to
co, so, NO formation which are hazardous to environment and
we also loose co which can be used as fuel. if we supply
higher or lower amount of excess air leads to decrease in
furnace efficiency. so we should optimize the excess air
where furnace efficiency is high.

Answer / sarav

Simply we can say to ensure the complete combustion of fuel.
Which will also reduce the toxic gas emission (CO) and also
results in effective fuel utilization which reduces the
operation cost.

Answer / vinayak m. desai

excess air give complete combustion of the fuelmeans we get
higher temp and economy operation

Answer / suraj chaudhari

To avoid smoke formation by burning fuel
completely, so rediction of particulate matter. Also
for obtaining high calorific value of fuel.

Answer / suraj chaudhari

To avoid smoke formation by burning fuel
completely, so rediction of particulate matter. Also
for obtaining high calorific value of fuel.

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