The compression ratio of an air-standard Otto Cycle is 8. Prior to the isentropic compression process, the air is at 100 kPa, 25 degrees Celcius, and 600 cm3. The temperature at the end of the isentropic expansion process is 850K. Using the average specific heat value over the temperature range, determine: The amount of heat transferred in kJ. The thermal efficiency

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IC engines

The term "engine" indicates a mechanical device/machine used to convert input energy to a specific mechanical output. The input energy may be in the form of chemical energy, thermal energy, or so on and mechanical output is in the form of mechanical energy (work done). Generally, the engines classify into two groups which are internal combustion type and external combustion type, and further, these two types can be classified into two types that are reciprocating and rotary engines.