Abstract
The effect of gasoline RON95 and RON97 on performance and exhaust emissions in spark ignition engine was investigated. The results were obtained from a 1.6 liter, 4- cylinder Mitsubishi 4G92 engine with compression ratio 11:1. The engine was run at constant speed between 1500 and 3500 rpm with 500 rpm increment at various part- load conditions from 0 to 5 Nm with 1.25 Nm increment. An engine control system, a hydraulic dynamometer and a portable exhaust gas analyzer were used to control engine operations and record engine performance, cylinder pressure and emissions data. Results showed that RON 95 fuel produced higher engine performance for both no-load and part-load tests condition. Gasoline RON95 produced 4.4% higher brake torque, brake power, brake mean effective pressure as compared to RON97. The difference in engine performance between these two fuels was more significant at higher engine speed and loads. RON97 yielded 2.8% higher fuel conversion efficiency compared to that of RON95. RON97 fuel yielded 2.3% lower brake specific fuel consumption throughout all load condition. In terms of exhaust emissions, RON95 fuel produced 7.7% lower NOx emission but higher CO2, CO and HC emissions by 7.9%, 36.9% and 20.3% respectively as compared to RON 97.
Recommended Citation
Mohamad, Taib Iskandar and Geok, How Heoy
(2014),
EXPERIMENTAL INVESTIGATION OF THE PART-LOAD PERFORMANCE AND EMISSIONS OF A SPARK IGNITION ENGINE FUELLED WITH GASOLINE RON95 AND RON97,
Yanbu Journal of Engineering and Science: Vol. 8:
Iss.
1, 19-26.
DOI: https://doi.org/10.53370/001c.24182
Available at:
https://yjes.researchcommons.org/yjes/vol8/iss1/3
