A regenerative type air heater should be...

Question 1 / 270705eccefa0bacbc34ba4d46ece

Question 1 of 270705eccefa0bacbc34ba4d46ece

A regenerative type air heater should be bypassed at low load in order to __________.

Question 1 of 27070

A regenerative type air heater should be bypassed at low load in order to __________.

🔍 Key Concepts

• Regenerative air heater operation in marine boilers and what happens to gas temperatures at low load • The relationship between flue gas temperature, dew point, and condensation of corrosive components (like sulfur compounds) • Effects of low load on air and gas flow through heat exchangers

💭 Think About

• What happens to exhaust gas temperature when the boiler is operating at low load but the air heater is still transferring a lot of heat? • If the gas side of the air heater gets too cool, what could begin to form on the cold surfaces, and why is that undesirable? • Which option specifically connects low-load operation with changes in gas temperature and phase (vapor vs. liquid)?

✅ Before You Answer

• Verify which choice directly refers to temperature and condensation of exhaust gases, not mechanical issues like coatings or seals. • Check your steam plant theory: does low load usually increase or decrease the risk of condensation and corrosion in gas paths? • Eliminate any answers that don’t involve the gas side temperature behavior of a regenerative air heater at low firing rates.

Question 1 of 27070

A regenerative type air heater should be bypassed at low load in order to __________.

prevent chipping of the ceramic coating

prevent condensation in the steam baffling

avoid excessive cooling and condensation of the exhaust gases

maintain a positive seal on the replaceable basket

Question 1 / 270705eccefa0bacbc34ba4d46ece

Question 1 of 270705eccefa0bacbc34ba4d46ece

A regenerative type air heater should be bypassed at low load in order to __________.

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Question 1 of 27070

A regenerative type air heater should be bypassed at low load in order to __________.