Furnace Technology - Chemical Engineering Questions and Answers

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In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the

rate of firing and emissivity of flame.

thermal conductivity of the charge & structural materials of furnace.

nature of process ; whether batch, continuous or intermittant.

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

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In which of the following furnaces, the gases are sucked through the stock bed from below?

Soaking pit

Sintering machine

Beehive oven

None of these

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Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an

economiser

steam superheater

air preheater

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

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Recuperator is

not used for fuel gas preheating.

an intermittant waste heat recovery equipment.

a continuous waste heat recovery equipment.

heavier than regenerator meant for the same duty.

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An improved and fuel efficient version of the pusher type reheating furnace is the __________ furnace.

walking beam

shaft

tunnel

rotary hearth