Question:
In modern steam generator, the correct path of gases from boiler furnace to chimney is:
A. Boiler furnace
B. Economizer
C. Superheater
D. Air preheater
E. Chimney
In modern steam generator, the correct path of gases from boiler furnace to chimney is:
A. Boiler furnace
B. Economizer
C. Superheater
D. Air preheater
E. Chimney
B. Economizer
C. Superheater
D. Air preheater
E. Chimney
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Order of heat recovery: Superheater → Economizer → Air preheater.
Updated On: May 22, 2026
- A, C, B, D, E
- A, B, C, D, E
- A, C, D, B, E
- A, B, D, C, E
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The Correct Option is A
Solution and Explanation
Concept:
Flue gases in a boiler pass through heat recovery devices before leaving chimney.
Step 1: Starting point.
Gases are generated in: \[ \text{Boiler furnace (A)} \]
Step 2: Pass through superheater.
• Converts saturated steam into superheated steam \[ \text{Superheater (C)} \]
Step 3: Pass through economizer.
• Heats feed water using waste heat \[ \text{Economizer (B)} \]
Step 4: Pass through air preheater.
• Heats incoming air \[ \text{Air preheater (D)} \]
Step 5: Exit via chimney.
\[ \text{Chimney (E)} \]
Step 6: Final sequence.
\[ A \rightarrow C \rightarrow B \rightarrow D \rightarrow E \] Final Answer: \[ \boxed{A, C, B, D, E} \]
Step 1: Starting point.
Gases are generated in: \[ \text{Boiler furnace (A)} \]
Step 2: Pass through superheater.
• Converts saturated steam into superheated steam \[ \text{Superheater (C)} \]
Step 3: Pass through economizer.
• Heats feed water using waste heat \[ \text{Economizer (B)} \]
Step 4: Pass through air preheater.
• Heats incoming air \[ \text{Air preheater (D)} \]
Step 5: Exit via chimney.
\[ \text{Chimney (E)} \]
Step 6: Final sequence.
\[ A \rightarrow C \rightarrow B \rightarrow D \rightarrow E \] Final Answer: \[ \boxed{A, C, B, D, E} \]
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