Question

Which of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace ?

a.

Increase in calorific value of the fuel.

b.

Increase in flame temperature.

c.

Reduction in scale losses.

d.

Saving in fuel consumption.

Answer: (a).Increase in calorific value of the fuel.

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Q. Which of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace ?

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