Experimental comparison of CO emissions emitted from single cylinder S. I. engine fueled with different kinds of hydrocarbon fuels and hydrogen

الملخص EN

Liquefied petroleum gas (LPG), Natural gas (NG) and hydrogen were used to operate spark ignition internal combustion engine Ricardo E6, and compare CO emissions emitted from the engine, with emissions emitted from engine fueled with gasoline as a fuel. The study was done when engine operated at higher useful compression ratio (HUCR) for gasoline 8 : 1, compared with its operation at HUCR for each fuel.

Compression ratio, equivalence ratio and spark timing at constant speed 1500 rpm were studied there effects on the emitted emissions. CO concentrations were little at lean ratios ; it appeared to be effected a little with equivalence ratio in this side, at rich side its values became higher, and it appeared to be effected by equivalence ratio highly.

The results appeared that CO emissions resulted from gasoline engine higher than that resulted from using LPG and NG all the time, while hydrogen engine emitted extremely low CO concentrations.