Question $1$

Using air standard assumption, determine the maximum temperature of the air and the rate of heat addition to the diesel cycle with the compression ratio of $17$ and a cutoff ratio of $1\mathrm{.}3.$ This diesel cycle produces $140$ kW of power with the state of the air at the beginning of the compression is $90$ kPa and $37C.$ Compare the thermal efficiency of this diesel cycle with the possible thermal efficiency of Carnot cycle and give comments.

Note: $C_p=1\mathrm{.}005k\frac{J}{kgK},C_v=0\mathrm{.}718k\frac{J}{kgK},R=C_p-C_v[k\frac{J}{kgK}],k=\frac{C_p}{C_v}$