Question

An ideal Otto cycle, has a compression ratio of 8.5. At the beginning of the compression process, air is at density 1.22 kg/m3, temp. 25 °C and pressure 102 kPa. The network output of the cycle is 501 kJ/kg. The mean effective pressure (MEP) for this cycle is

Answer 1

Otto cycle is the air standard cycle, it is used for petrol engines in which there are four processes -isentropic compression process, heat addition at constant volume, isentropic expansion process, and heat rejection at constant volume.

Prior to the isentropic compression process, the air is 100 kPa, 35°C, and 600 cm". ... in kJ; c. The thermal efficiency; d. The mean effective pressure (MEP). 9-35 An ideal Otto cycle with air as the working fluid has a compression ratio of 9.5. ... Properties The properties of air at room temperature are cy = 1.005 kJ/kg.K. C ...