Abstract
PERFORMANCE ANALYSIS OF A SMALL INTERNAL COMBUSTION ENGINE WITH GASOLINE AND E85 ETHANOL BLEND
David Aaron García Castro*
ABSTRACT
This study investigates the performance characteristics of a small three-cylinder internal combustion engine when fueled by both gasoline and a gasoline-ethanol e85 blend. With the aim of understanding the potential benefits of ethanol blending in small engine applications, torque, power, and brake mean effective pressure were comprehensively evaluated using a dynamometer setup. Measurements were conducted within the engine speed range of 2500 to 4100 rpm, covering typical operating conditions for small engines in automotive applications. The experimental results demonstrate a slightimprovement in engine performance with the utilization of the e85 blend compared to pure gasoline. Specifically, the e85 blend exhibited increased torque and power outputs across the operating range. These findings suggest promising opportunities for enhancing the performance and efficiency of small internal combustion engines through the adoption of ethanol blends.
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