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ValeryOchkov24-Ruby IV
24-Ruby IV
September 30, 2015
Question

Study 15. Otto Cycle or what is behind the simplified formula

  • September 30, 2015
  • 0 replies
  • 2397 views

This study explains how the usual simplified formula to calculate thermal efficiency of an internal combustion engine is appears. Described Internet sites with the "reverse" design challenge – you must not to enter raw data and get a response, but you must enter formulas for calculations and verify their correctness (educational task).

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Fig. 15.1. Otto cycle thermal efficiency - http://twt.mpei.ac.ru/MCS/Worksheets/PTU/otto-cycle-1.xmcd

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Fig. 15.2. "Pointwise" calculation of Otto cycle thermal efficiency

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Fig. 15.3. Ideal gas specific entropy calculation

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Fig. 15.4. Ideal gas enthalpy calculation

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Fig. 15.5. The site with the calculation and graphical display of the Otto cycle - http://twtmas.mpei.ac.ru/mas/Worksheets/Therm/Otto_anim.mcd

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Fig. 15.6. Start of the test on knowledge of the calculation of the Otto cycle - http://twtmas.mpei.ac.ru/mas/Worksheets/Therm/otto_ideal_cycle_test.mcd

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Fig. 15.7. End of the test on knowledge of the calculation of the Otto cycle

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