At the beginning of compression, Otto cycle works on 0.2 lb/s of air at 14 psia and 1300F. The temperature at the completion of combustion is 4500 R, the compression ratio is 5.5, and the hot- air standard is k = 1.3. a. Find V1 , P2 , T2 , P3 , V3 , T4 b. Compute the heat added (QA), heat rejected (QR), work (W) and the cycle efficiency (e).

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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.