(Solved): 1. The diesel internal combustion engine differs from the gasoline powered cycle by using a higher ...

1. The diesel internal combustion engine differs from the gasoline powered cycle by using a higher compression to ignite the fuel rather than using a spark plug - think of "compression ignition" rather than a "spark ignition." The compression and power strokes of this cycle are adiabatic. The input $Q_1$ and output $Q_2$ energies and efficiency are calculated from temperature and specific heat values. Using the following equations, calculate the efficiency of a diesel engine given initial and final temperatures of 273.15 and $807\mathrm{K}$, respectively and a specific heat $\left(C_P\right)$ of $1.8\mathrm{kJ}/(\mathrm{kg}\mathrm{K})$, where $\mathrm{R}$ is $0.2871\mathrm{kJ}/(\mathrm{kg}\mathrm{K})$. $\begin{array}{l}{Q}_1=C_P\left(T_c?T_b\right)\\ Q_2=C_V\left(T_a?T_d\right)\\ C_P=C_V+R\end{array}\text{ Efficiency }=?=\frac{Q_1+Q_2}{Q_1}$