Desempenho em dinamômetro e emissões residuais de um motor de trator agrícola operando com misturas binárias de óleo diesel B5 e biodiesel de óleo de frango

• Autor(a) principal: Fiorese, Diego Augusto
• Data de Publicação: 2011
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Manancial - Repositório Digital da UFSM
• dARK ID: ark:/26339/0013000007n6t
• Texto Completo: http://repositorio.ufsm.br/handle/1/7542
• topic: Biocombustível; Ensaio; Eficiência; Dinamometria; Gases residuais; Biofuel; Test; Efficiency; Dynamometry; Waste Gas; CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA

Brazil, the third largest producer of biodiesel in the world, and also the third largest producer of chicken, may increase in some regions, the use of oil derived from birds, as an alternative to fossil fuels. In order to increase the range of options to reduce dependence on soybean oil for that purpose, and fostering environmental aspects, it is possible to produce biodiesel from chicken oil, the country that can provide more than 300 thousand tons of oil per year. Considering the application of alternative fuels for diesel engines, agricultural machinery, the study aimed to evaluate the performance of a tractor of 53 kW in a dynamometer bench, and the level of emissions of certain waste gases of combustion, operating with biodiesel methyl chicken oil and various binary mixtures with diesel B5. We evaluated the values of torque and power produced, fuel consumption, power consumption and thermal efficiency of the engine, as well as the levels of gases (carbon dioxide, CO2, carbon monoxide, CO, unburned hydrocarbons, HC; and oxygen, O2). We used six blends of diesel with biodiesel B5 (control), B20, B40, B60, B80 and B100. The trial was conducted with a randomized design (CRD) in a factorial design, which was held after the analysis of variance and the average adjusted for regression equations. Integrating the data, the most significant results showed advantages for the B20. Minor losses were observed in the generation of power and torque, increase in specific fuel consumption, improved engine thermal efficiency and reduced energy consumption by increasing the proportion of biodiesel in the blend. The best emission results showed a reduction in emissions of CO, in the order of 80% when operating with B100. The CO2 reduction was not significant and the level of unburned HC was higher than the control blends B60, B80 and B100.