USE OF PREHEATED SOYBEAN OIL IN A STATIONARY DIESEL CYCLE MOTOR - DOI: 10.13083/1414-3984/reveng.v23n4p305-314

Abstract

Production, evaluation, improvement and use of renewable fuels, such as vegetable oil, make up one of the pillars of sustainability. The objective herein was to evaluate the emission of gaseous and hourly consumption when using soy vegetable oil at different vegetable oil temperatures and applied loads, in a 2 KVA stationary diesel-cycle generator. The experimental design was completely randomized in a 5x5 factorial scheme, using five soybean oil temperatures (25°C, 60°C, 90°C, 120°C and 150°C) with five loads applied to the generator (0, 500, 1000, 1500 and 2000 watts) with three replications. We determined the emission of oxygen (O2), carbon dioxide (CO2), nitrogen oxides (NOx), sulfur oxides (SO2) and carbon monoxide (CO), as well as the hourly consumption of the motor-generator. Viscosity was reduced by heating the soy vegetable oil. Heating the vegetable soybean oil to 90°C promoted the best gas emission rates. A demand load of 110 Watts presented the maximum value of NOx emissions and minimal emissions of CO, however SO2 emissions increased with increase in the demand load. The fuel consumption was increased by heating the soybean oil and increasing the demand load.