Performance of single cylinder spark ignition engine fueled by LPG

Abstract

This paper analyze the characteristics of single cylinder SI ICE fueled by LPG. In particular, torque and engine speed were examined with using the universal dynamometer in WOT condition under stable condition. In additional the fuel consumption has been measure to identify which fuel is more practical for SI ICE. SI engine fueled by LPG has slightly decreased on power output up to 4% compared to ULP. However, engine fueled by LPG reduce on specific fuel consumption (SFC) to 28.38%. In addition, LPG engine have low energy price than ULP engine with difference up to 47.40%.