Q4) Diesel engine four stroke, five cylinder operating at air fuel ratio 14.5 and engine time is 6.9 *10.5,^-5 sec/deg. Fuel injection occurs from 20° BTDC to 5° ATDC. The engine has a volumetric efficiency of 0.95 with fuel equivalence ratio of 0.8 and mass of air=718g. Calculate 1) displacement volume. 2) RPM. 3) time for one injection. 4) fuel flow rate through an injector. * Vd=62 litter , RPM= 2400, t= 0.00137sec/injection mf=22.9 g Vd=64 litter, RPM= 2400, t= 0.00137sec/injection mf=22.9 g Vd=64 litter, RPM= 2420, t= 0.00137sec/injection mf=22.9 g

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