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This paper presents an experimental study of the effectusing LPG instead of gasoline fuel on single-cylinder spark-ignition engine characteristics. The experiments were carried out at different engine loads and variable engine speed of (2400–3600) rpm. Significantreductionin brake specific fuel consumption by (5.42%)when LPG fuel was used as compared to gasoline. The use of LPG leads to a decrease in volumetric efficiency and brake thermal efficiency. The concentration CO and CO 2  emissions is decreased by (11.54%, 14.4%) respectively with LPG compared to gasoline, except for the concentration of NOx, which increases by (10.8%) due to higher cylinder pressure and temperature in the case of LPG fuel compared to gasoline. The obtained results are validated with the same case study numerically with the help of simulation software Diesel-rk as well as with the results of other researchers.

Investigation study for the effect using LPG on characteristics of gasoline engine