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Boiler draught: source of natural draught Identify the device that produces natural draught for combustion air and flue gas movement in steam boilers. Choose the correct option.

Q: Boiler draught: source of natural draught Identify the device that produces natural draught for combustion air and flue gas movement in steam boilers. Choose the correct option.

Concept Natural draught is created by the density (temperature) difference of hot flue gases and outside air, using the static head of a chimney. Mechanical draught uses fans or steam jets. Final Answer Chimney

Difficulty: Easy

Steam jet
Centrifugal fan
Chimney
Both (a) and (b)

Correct Answer: Chimney

Explanation:

Concept
Natural draught is created by the density (temperature) difference of hot flue gases and outside air, using the static head of a chimney. Mechanical draught uses fans or steam jets.

Final Answer
Chimney

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