Effect of Fuel Properties on Exhaust Emissions during Warm-Up Process

Problem statement: Increasing air pollutions the big problem form internal combustion engines. Several attempts have been done to get a cleaner combustion process, one of which is the use of fuel ethanol in gasoline engines. Approach: The addition of ethanol in fuel will be change fuel properties. Results: To know the effect of fuel properties on engine performance and emissions produced, in this study was conducted tests against some root material, which is 95 octane gasoline, ethanol/gasoline 10, 20% ethanol, ethanol 30%, when the warm-up process. Conclusion/Recommendations: Result from this research, addition of ethanol in the fuel produces emissions of HC and CO is higher at the start, but with increasing time engine running the addition of ethanol to reduce emissions.