7.7. A truck engine consumes fuel at a rate of $30 L/h$ and delivers $180 kW$ of power to the wheels. If the fuel has a heating value of $52,000 kJ/kg$ and a density of $0.95 g/cm^3$, find the thermal efficiency of this engine.
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The thermal efficiency ($\eta_{th}$) is defined as the ratio of the net work output to the total heat input. $\eta_{th} = \frac{\text{Work Output}}{\text{Heat Input}}$ Given values: Fuel consumption rate ($\dot{V}$) = $30 L/h$ Power delivered to the wheels Show more…
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