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Questions and Answers
What is the main purpose of Air Preheaters (APHs)?
What is the main purpose of Air Preheaters (APHs)?
- To cool down the incoming air for combustion
- To increase the temperature of the flue gas
- To increase the pressure drop losses
- To improve overall boiler efficiency by transferring heat (correct)
How does air preheater leakage impact boiler efficiency?
How does air preheater leakage impact boiler efficiency?
- It decreases the flue gas flow rate and pressure drop losses
- It improves boiler efficiency by lowering flue gas temperature
- It increases both the flue gas flow rate and associated pressure drop losses (correct)
- It has no impact on boiler efficiency
Which type of APH is the primary focus of the report?
Which type of APH is the primary focus of the report?
- Electrical APH
- Regenerative APH (correct)
- Combustion APH
- Tubular APH
What is the operational principle of regenerative-type APHs?
What is the operational principle of regenerative-type APHs?
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Why are proper operating and maintenance practices important for APHs?
Why are proper operating and maintenance practices important for APHs?
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What is the primary focus of the report?
What is the primary focus of the report?
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Why are traditional O&M practices for APHs mentioned in the text?
Why are traditional O&M practices for APHs mentioned in the text?
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What do APHs do to improve overall boiler efficiency?
What do APHs do to improve overall boiler efficiency?
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Why should utilities base APH decisions on the benefits of upgrades on plant heat rate?
Why should utilities base APH decisions on the benefits of upgrades on plant heat rate?
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What is the major relationship between APH parameters and heat rate?
What is the major relationship between APH parameters and heat rate?
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