The Effect on Performance and Emissions the Spark Ignition Engines of n-propanol and iso-propanol/ Gasoline Fuel Blends

In this study were investigated that the effect on performance and emissions of spark ignition engine by used n-propanol and iso-propanol alcohol. In experiments were used B100(100% gasoline), 20 n-pro (80% gasoline+20% n-propanol) and 20 iso-pro (80% gasoline+20% iso-propanol) fuel blends. Experiments was performed that engine full throttle in the position and six different engine speed (1500-4000 d/min). According to performance results, was not observed that significant a change on engine moment and engine power with add iso-propanol alcohol. But specific fuel consumption was increase that 2.23% rate with using iso propanol alcohol. According to the emissions results, HC and CO emissions were reduced with add alcohol about %10.52 and % 4.41 respectively. On the other hand, NOX and CO2 emission increased about %17.38 and %15.24 respectively