| 21. | In the Otto cycle, there is no heat transfer during the process 1 2 and 3 4 as they are isentropic processes.
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| 22. | In Otto cycle engines, the cooling effects of water injection also enables greater compression ratios by reducing engine knocking ( detonation ).
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| 23. | The Otto cycle consists of isentropic compression, heat addition at constant volume, isentropic expansion, and rejection of heat at constant volume.
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| 24. | It was a low-RPM machine, and only fired every other stroke due to the Otto cycle, also designed by Otto.
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| 25. | The absence of any compression process in the design leads to lower thermal efficiency than the more well known Otto cycle and Diesel cycle.
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| 26. | The Otto cycle design convention calls for combustion just before top dead center ( BTDC ) in order to allow combustion pressure to build.
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| 27. | Comparing the two formulae it can be seen that for a given compression ratio ( ), the ideal Otto cycle will be more efficient.
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| 28. | Other cycles, such as the Otto cycle, Diesel cycle and Brayton cycle, can be analyzed from the standpoint of the Carnot cycle.
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| 29. | The heat energy source is generated external to the Stirling engine rather than by internal combustion as with the Otto cycle or Diesel cycle engines.
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| 30. | It is this engine ( the Otto Silent Engine ), and not the Otto & Langen engine, to which the Otto cycle refers.
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