To avoid acid corrosion of the economizer...

Question 1 / 2066636ef128f7522a1c520f96

Question 1 of 2066636ef128f7522a1c520f96

To avoid acid corrosion of the economizer tubes when blowing tubes __________.

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Question 1 of 20

66636ef128f7522a1c520f96

To avoid acid corrosion of the economizer tubes when blowing tubes __________.

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🔍 Key Concepts

• Economizer function in a boiler system and where it is located in relation to the boiler and exhaust gas path • How acid dew point and metal surface temperature affect sulfuric acid condensation and tube corrosion • What happens to steam pressure and gas temperature when boiler pressure is raised or lowered

💭 Think About

• Think about whether you want the metal surfaces of the economizer tubes to be warmer or cooler to reduce acid condensation and corrosion when blowing tubes • Consider how each option (raising or lowering boiler pressure, changing water level, draining headers) would affect the temperature of the economizer tubes and gases at that moment • Ask which change will move tube metal temperature farther above the acid dew point, making acid corrosion less likely

✅ Before You Answer

• Identify which action will increase tube metal temperature relative to exhaust gas dew point during sootblowing • Eliminate options that mainly affect water level or mechanical aspects without significantly protecting against acid condensation • Verify in your steam plant knowledge which boiler pressure change tends to make feedwater and economizer outlet temperatures higher at a given firing rate

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Question 1 of 20

To avoid acid corrosion of the economizer tubes when blowing tubes __________.

Raise boiler pressure

Lower water level

Drain the sootblowers headers

Lower boiler pressure

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Question 1 / 2066636ef128f7522a1c520f96

Question 1 of 2066636ef128f7522a1c520f96

To avoid acid corrosion of the economizer tubes when blowing tubes __________.

Back

Question 1 of 20

66636ef128f7522a1c520f96

To avoid acid corrosion of the economizer tubes when blowing tubes __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed