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.
Mechanical Engineering
Steam Boilers and Engines
Difficulty: Easy
Choose an option
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ASteam jet
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BCentrifugal fan
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CChimney
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DBoth (a) and (b)
Answer
Correct Answer: Chimney
Explanation
ConceptNatural 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 AnswerChimney