\[\dot{\eta}_{\text {indi}}=\frac{\text {Indicated Power}}{\text {Energy in fuel per second}}=\frac{I_{p}}{m_{f} \times C_{v}}\]
\[\dot{\eta}_{\text {indi}}=\frac{\text {Indicated Power}}{\text {Energy in fuel per second}}=\frac{I_{p}}{m_{f} \times C_{v}}\]