Example $1$

An air$-$standard Diesel cycle has a compression ratio of $18,$ and the heat transferred to the working fluid per cycle is $1800k\frac{J}{k}g.$ At the beginning of the compression process, the pressure is $0\mathrm{.}1$ MPa and the temperature is $15C.$ Draw the $($PV$)$ diagram of the cycle and determine:

i$.$ The pressure and temperature at the end of each process of the cycle.

ii$.$ The thermal efficiency of the cycle.

iii. The mean effective pressure.

Soln