PERFORMANCE AND EMISSION STUDIES OF ETHANOL-DIESEL BLEND IN AN UNMODIFIED DIESEL ENGINE WITH TETRAHYDROFURAN AS A SURFACTANT

Abstract

This investigation presents an experimental examination into the effects of ethanol diesel blends stabilized with the help of tetrahydrofuran on running diesel engines. Ethanol-diesel Blended fuel provides a method to alternative fuels without any modification of the engine technology present till date, yet allowing for reducing the NOx and particulates. The blending of diesel and ethanol were done at room temperature (300k). The accepted blends were described to determine the chemical composition and physicochemical properties, i.e., density (ρ), kinematic viscosity (ν), calorific value (cv). According to the properties that are obtained from experiments, engine performances, spray characteristics and emission characteristics were evaluated. Some advancement was detected when working with the prepared blends estimate diesel concerning engine performances and emission characteristics. According to the physicochemical valuation, it was demonstrated that diesel-ethanol tetrahydrofuran blends could be used as alternative fuel in diesel engines. This study shows how by blending ethanol with petroleum diesel at intervals of E2, E4, E6, E8, E10, and E15 with tetrahydrofuran as surfactant decrease particle emissions and oxides of nitrogen while keeping same performance output and efficiency concerning 100% petroleum diesel. The different chemical, physical and thermal properties of ethanol-diesel blends can be used to improve emissions and performance of the diesel engine. This work used experimental investigation to find out the influence of ethanol and ethanol-diesel blends on advanced diesel engine strategies and on understanding which of the properties of ethanol and ethanol-diesel blends control engine performance. With the much more use of traditional fuel source at a high rate and expanding environmental contamination has persuaded extensive research in elective vi

fuel. The engine trials are performed on a single cylinder air-cooled (radial cooled) vertical diesel engine test rig. Emission characteristics were also examined using AVL gas and smoke analyzer. Emission characteristics or variation of amount of gases emitted by engine at different loads are estimated and examined including smoke opacity and plotted against bmep. This project is an effort towards obtaining the influence of ethanol-diesel blended fuel as a replacement over diesel in diesel engines to reduce engine emissions and regular diesel consumption. Thus, ethanol which can be produced both naturally and artificially with the intention to replace some amount of diesel with performance fulfilling the standards.