Question

An Engine operating in an Air-standard Otto cycle has a compression ratio of 8.0. The pressure, Temperature and volume at the beginning of the isentropic compression process are; 100 kPa, 270C, and 580 cm3, respectively. If the temperature at the end of isentropic Expansion is 5570C .( For Air; k = 1.4, R= 0.287 kJ/ kgm .K, CP= 1.0047 kJ/ kgm. K, Cv = 0.7176kJ/ kgm .K, ). Determine ; a) maximum temperature and pressure, in kPa and K.
b) The heat added, in kJ
c ) The Thermal efficiency, in %.

Answer 1

Step-by-step explanation:

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