The air in an ideal Otto engine is initially at 14.5 psia, 100 deg F. At the end of isentropic compression, the pressure is 352 psia; at the end of combustion, the pressure is 1100 psia. Find (a) rk, (b) the percentage clearance, (c) T3, (d) e, and (e) If the sink temp is 100 deg F what percentage of the available part of the heat added was utilized?

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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.