Comparative analysis on performance and emission characteristics of an in-Vietnam popular 4-stroke motorcycle engine running on biogasoline and mineral gasoline

In the world, Vietnam is one of the countries with a large number of motorcycles which have been considering as the vehicles causing the serious problem regarding pollution environment. From the beginning of 2018, E5-biogasoline was officially bought in the nationwide market to replace the fossil gasoline RON92 and RON95, and E10-biogasoline will be also used by 2019. In this study, the empirical research results on engine performance, and emission characteristics when using E10-biogasoline, E5-biogasoline and fossil gasoline-RON95 for the most popular in-Vietnam motorcycle based on the Chassisdyno 20 dynamometer and ECE R40 test-cycle, being Honda Wave RSX110, were carried out. As-presented results, there were about 2.3%-7.1% of increase in engine power, 1.6%-2.2% and 3%-6.7% of increase in NOx and CO2 emissions, respectively. In addition, a reduction around 2%-4% of fuel consumption, 1.6%-5.2% of CO emissions, and 5.4%-13.7% of HC emissions of test motorcycle fueled with E10-biogasoline in comparison with fossil gasoline-RON95 and E5-biogasoline were also reported in this study. These study results were the proof of confirmation about the benefits of biogasoline, diversification of fuel sources and reduction of environmental pollution.