An engine is using \( 5.2 kg \) of air per minute while operating at 1200 The engine requires \( 0.2256 kg \) of fuel per hour to produce an ind power of \( 1 kW \). The air-fuel ratio is 15:1. Indicated thermal effi is \( 38 \% \) and mechanical efficiency is \( 80 \% \). Calculate (i) brake pow
(ii) heating value of the fuel. Ans: (i) \( 73.7 kW \) (ii) \( 41992.89 \)
