Question

Derive the expression for thermal efficiency of an Oto Cycle. Also, shows the process on a P-y and T-S diagram? ii. An air-standard Diesel cycle has a compression ratio of 18.2. Air is at 27°C and 101.323 Pa at the beginning of the compression process and at 1667 K at the end of the heat addition​

Answer 1

Answer:

compression process and at 1667 K at the end of the heat addition​

Explanation:

Answer 2

A typical gasoline automotive engine operates at around 25% to 30% of thermal efficiency. About 70-75% is rejected as waste heat without being converted into useful work, i.e., work delivered to wheels.