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Internal Combustion Engines

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Engineering Subjects

Description

Internal Combustion Engines

  1. What's new in this club
  2. TDC is Top Dead Center BDC is Bottom Dead Center For an engine with no cylinder center line offset, the cylinder center line passes through the crank axis of rotation. When the piston is farthest away from the crank axis, this is the TDC condition. When then piston is closest to the crank axis, this is the BDC condition. The term "dead center" refers to the fact that pressure acting on the piston in a dead center position produces no torque on the crank and hence no ability to move a load. The term derives from the era of steam power when single cylinder engines were very common. DrD
  3. Explain briefly (i) mean effective pressure (ii) specific output (ii) specific fuel consumption (iv) fuel-air ratio (0) heating value of the fuel You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  4. Define the following efficiencies : (i) indicated thermal efficiency (ii) brake thermal efficiency (iii) mechanical efficiency (iv) relative efficiency (v) volumetric efficiency You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  5. Discuss briefly the design performance data of SI and CI engines. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  6. What is meant by mean piston speed? Explain its importance. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  7. Show by means of a diagram the energy flow in a reciprocating internal combustion engine. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  8. Give an account of the first law analysis of an internal combustion engine. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  9. Discuss in detail the application of various types of internal combustion engines. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  10. Compare SI and CI engines with respect to (i) basic cycle (ii) fuel used (iii) introduction of fuel (V) compression ratio (vi) speed (vii) efficiency (iv) ignition (viii) weight You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  11. Compare four-stroke and two-stroke cycle engines. Bring out clearly their relative merits and demerits. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  12. Draw the ideal and actual indicator diagrams of a two-stroke SI engine. How are they different from that of a four-stroke cycle engine? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  13. Describe with a neat sketch the working principle of a crankcase scavenged two-stroke engine. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  14. What is the main reason for the development of two-stroke engines and what are the two main types of two-stroke engines? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  15. In what respects four-stroke cycle CI engine differ from that of an SI engine? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  16. Classify the internal combustion engine with respect to (i) cycle of operation (ii) cylinder arrangements (iii) method of charging the cylinder (iv) type of ignition (v) type of fuels used (vi) type of cooling You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  17. With neat sketches explain the working principle of four-stroke spark-ignition engine. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  18. What is meant by cylinder row and cylinder bank? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  19. What is meant by TDC and BDC? In a suitable sketch mark the two dead centres. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  20. Define the following: (i) bore (ii) stroke (iii) displacement volume (iv) clearance volume (V) compression ratio (vi) cubic capacity Mention the units in which they are normally measured. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  21. Draw the cross-section of a single cylinder spark-ignition engine and mark the important parts. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  22. What are the important basic components of an IC engine? Explain them briefly. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  23. Compare EC and IC engines. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  24. Give eramples of EC and IC engines. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  25. Explain the basic difference in their work principle? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  26. How are heat engines classified? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
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