Cochran vertical boiler: orientation of the fire tubes Cochran boiler is a vertical, multi-tubular fire-tube boiler. State the orientation of its fire tubes between the combustion chamber and the smoke box. Choose the correct option.
Mechanical Engineering
Steam Boilers and Engines
Difficulty: Easy
Choose an option
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AVertical tubes
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BHorizontal tubes
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CInclined tubes
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DHelical tubes
Answer
Correct Answer: Horizontal tubes
Explanation
ConceptThe Cochran boiler has a vertical shell and horizontal fire tubes. Hot gases from the hemispherical furnace/combustion chamber pass through many small-diameter horizontal tubes to the smoke box, transferring heat to the surrounding water.
Final AnswerHorizontal tubes