A four cylinder, 2.4 liter engine operates on a four stroke cycle at 3200 RPM. The compression ratio is 9.4:1, the connecting rod length r = 18 cm, and the bore and stroke are related as S = 1.06 B. The engine operating at the conditions has a combustion efficiency of 97%.
Calculate:
(a) Rate of unburned hydrocarbon fuel which is expelled into the exhaust system. [kg/hr]
(b) Specific emissions of He [gm/kW-hr]
(c) Emissions index of He