Browse Publications Technical Papers 2019-28-0160

Influence of addition of ethanol into Non-Edible biodiesel from rice bran oil on the properties and performance – An Experimental Study in Direct Injection VCR diesel engine 2019-28-0160

Non-edible oil biodiesels and alcohols are the two major liquid fuel sources available to replace diesel to fuel compression ignition engine. This study is to investigate the solubility, properties, and performance of biodiesel from non-edible rice bran oil and ethanol. Solubility test was conducted in three different temperatures 5⁰C, 15⁰C & room temperature (30⁰C approximately). The stable blends were tested for essential properties such as energy content, cetane number, kinematic viscosity, the heat of vaporization, flash point and oxygen content as per ASTM standards. Biodiesel- ethanol blends containing 30% of ethanol was found stable up to 5⁰C. This blend also met the minimum requirement with respect to properties to fuel compression ignition engine. These blends were tested in a compression ignition engine for performance in various load conditions under three compression ratios (16:1, 17:1 & 18:1). Results showed that the compression ratio 18:1 was found suitable for the optimal blend. This blend produced brake thermal efficiency, peak in-cylinder pressure, peak heat release rate, ignition delay, emission of oxides of nitrogen and smoke similar to that of diesel. However, hydrocarbon and carbon monoxide produced by this blend was found slightly higher compared to diesel.


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