Stack type air heaters are bypassed when a...

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Question 1 of 205eccefa0bacbc34ba4d46ecc

Stack type air heaters are bypassed when a vessel is in port in order to prevent __________.

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5eccefa0bacbc34ba4d46ecc

Stack type air heaters are bypassed when a vessel is in port in order to prevent __________.

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🔍 Key Concepts

• Stack (air preheater) operation at sea vs. in port/low load • Effect of flue gas temperature on metal surfaces and condensate formation • Relationship between sulfur in fuel, low gas temperature, and corrosion risk

💭 Think About

• When the vessel is in port, how do boiler firing rate and exhaust gas temperatures usually change compared to full sea speed? • What happens inside a heat exchanger if the hot gas side temperature drops below the dew point of water and acidic compounds in the flue gas? • Which of the choices describes a problem that becomes MORE likely at low load/low gas temperature rather than at high load/high temperature?

✅ Before You Answer

• Identify which option is directly related to low stack temperatures and possible condensation/acid formation. • Check which options would actually be more of a concern at high firing rates (maximum draft and gas flow) instead of in-port, low-load operation. • Verify which issue would cause long-term damage to the air heater surfaces, not just a temporary operational inconvenience.

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Question 1 of 205eccefa0bacbc34ba4d46ecc

Stack type air heaters are bypassed when a vessel is in port in order to prevent __________.

Back

Question 1 of 20

5eccefa0bacbc34ba4d46ecc

Stack type air heaters are bypassed when a vessel is in port in order to prevent __________.

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