THE EFFECT OF BRASS (Cu-Zn) CATALYTIC CONVERTER ENGINE PERFORMANCE

Abstract

Installing a catalytic converter in the exhaust is a typical method of reducing engine exhaust emissions. Catalytic converters have been shown to lower exhaust pollutants while enhancing engine performance. The influence of the number of brass catalyst plates (Cu-Zn) on the Performance of the commercial Yamaha Jupiter MX motorcycle engine manufactured in 2007 was investigated in this study. The catalyst is installed in the motorbike exhaust, with the number of catalyst plates varying between 5 and 8, and a conventional uncatalyzed exhaust serving as a comparison. Torque, power, specific fuel consumption, and thermal efficiency are among the performance factors that will be considered. A prony brake dynamometer was used to conduct torque and power measurements. The results indicate that exhaust with eight catalyst plates can improve engine performance more than an exhaust with five catalyst plates. Furthermore, exhausts equipped with eight catalyst plates can boost engine efficiency by an average of 17.65%. Thus, increasing the number of catalyst brass plates improves the machine's efficiency.

Analyzing Transition Metal Catalytic Converter Impact on Four-Stroke Motorcycle Fuel Consumption

“…This was due to an increase in back pressure caused by the steeper outlet angle of the casing. Another study conducted by Ellyanie & Oktabri [7] demonstrated that the use of copper catalytic converters in mufflers reduced fuel consumption, with a significant decrease of 12.56% at a Prony load of 0.9 kg and an average reduction of approximately 8.84%. Meanwhile, through his research, Zaloznov [8] successfully determined the average fuel consumption when the engine used a catalytic converter in idle conditions and its value under real testing conditions.…”

Design of Metallic Catalytic Converter using Pareto Optimization to Improve Engine Performance and Exhaust Emissions

“…Other researchers claim that using MCC with copper material coated with titanium dioxide (TiO2) can increase torque by 7.15% and power by 6.13% [21]. Furthermore, Ellyanie & Oktabri [22] proved that the brass catalytic converter increased engine efficiency by around 17.65%.…”