How Well Do You Know Diesel Combustion?
Gensen Huang
Created 6/21/2024
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Put your knowledge to the test and see how many correct answers you can get out of 20 in this exciting diesel combustion quiz!
1. What are the three phases of diesel combustion?
2. Which modern tool greatly increased the understanding of diesel combustion in the 1990s?
3. At what air-fuel ratio does diesel combustion peak torque typically occur?
4. What is the conceptual diesel combustion model primarily used to demonstrate?
5. What phenomenon can excessive fuel-rich regions in the combustion chamber lead to?
6. What is a 'Mexican hat' combustion bowl also known as?
7. Which component greatly influences charge air motion and mixing rate in the combustion chamber?
8. What is the typical air-fuel ratio at idle for turbocharged diesel engines?
9. What does the term 'combustion generated noise' refer to?
10. Which of the following influences injected fuel’s atomization and spray penetration?
11. What type of injector position do four-valve designs permit?
12. Why is the overall air-fuel ratio in diesel engines considered lean?
13. Which is a key objective when designing a combustion bowl in a diesel engine?
14. Which component controls the dead space between the piston top land and the cylinder liner?
15. What is one of the outcomes of proper turbulence in the air motion within the combustion bowl?
16. What technology was used before laser-sheet imaging to study diesel combustion?
17. Which bowl shape provides better soot oxidation at higher engine speeds?
18. Why is it important to avoid regions of the combustion chamber that can be fuel-rich?
19. What is one effect of having a four-valve design for valve configuration?
20. What does the 'conceptual diesel combustion model' help to illustrate?
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