Question

> Consider that the composition of an automotive engine fuel is represented by C^Hi8 (a) How many cubic feet per minute of air is required by a 4- stroke engine with a displacement volume of 3200.3 ? (b) Now consider that the exhaust emissions contain 2000 ppm of CO, 100ppm of HC, and 50 ppm of NO. If the stoichiometric amount of air is used for combustion, determine the pounds per minute of CO, HC, and NO emitted. The engine runs at 4000 rpm, and the exhaust gas exits at 1 atm and 1000°F

Answer 1

It is also evident that the emissions are in acceptable limits.

ANSWE (a) . ? CFM Mm ' 凹. Rmnd, per minutE σ CO, He and No omitted PPm CO 2000 0 Mm r// 60 For He, Lb 프 Ισοχ I3x 370. 3704-Х l. 557 m) 7