When would the available energy of the...

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Question 1 of 205eccefa2bacbc34ba4d47afa

When would the available energy of the exhaust gases of a two-stroke cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?

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5eccefa2bacbc34ba4d47afa

When would the available energy of the exhaust gases of a two-stroke cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?

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🔍 Key Concepts

• Two-stroke diesel scavenging and charging – how fresh air gets into the cylinder and why correct air quantity is critical • Exhaust gas turbocharger operation – it depends on exhaust gas energy (temperature, mass flow, and pressure) to spin the turbine • Engine load and speed effects – how low load, low speed, or rapid changes in load affect exhaust gas energy and turbocharger performance

💭 Think About

• Think about when the exhaust gas flow (mass and temperature) is at its weakest. Under which operating conditions would the turbocharger turbine get the least energy? • Consider how the turbocharger responds to sudden changes in engine power demand compared to steady running. Is there a time lag? • Compare steady high-load operation with low-load or transient conditions: when is there plenty of hot gas, and when is there just enough (or not enough) to keep the turbo turning fast?

✅ Before You Answer

• For each option, ask: Is exhaust gas temperature and mass flow high or low in this condition? • Consider turbocharger lag: Does the turbo respond instantly whenever fuel is increased, or is there a delay that temporarily reduces air supply? • Verify which of the listed conditions would definitely reduce turbine driving energy and which might still provide enough hot exhaust to maintain correct charging air.

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Question 1 of 205eccefa2bacbc34ba4d47afa

When would the available energy of the exhaust gases of a two-stroke cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?

Back

Question 1 of 20

5eccefa2bacbc34ba4d47afa

When would the available energy of the exhaust gases of a two-stroke cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?

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?

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