The effect of variable parameters on the performance of internal combustion engine

The aim of this work is to study the effects of varyirlg the parameters ( camprcession,ratio, air-fuel ratio, ambiant conditions) and the fresh charge temperature on the performancc of th e Spark Ignition Eneine under different opcratint condi tions. The experimento have been Carried out on a single cYlinder, petrol entine, overhcad valves,Variable compressio ratio, at the laboratory of the military technical collage.The present work is also directed toward the study of the engine Performance and eXhaust gas analysis when the air or the charge are hcated before’ entcring the entine Cylinder. two different . ets for air and charge heating were constructed to maintain difference in temperautures botween air .