Question

To reduce the stack loss, heat recovery from flue gas can be done by

a.

preheating of cold stock.

b.

preheating of combustion air.

c.

steam generation in waste heat boilers.

d.

all (a), (b) and (c).

Answer: (d).all (a), (b) and (c).

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Q. To reduce the stack loss, heat recovery from flue gas can be done by

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