Performance of an Agricultural Diesel Engine Using Differents Fuels

Abstract

ABSTRACT:The use of fuels for agricultural Diesel engines cycle, both of mineral origin (Diesel) or vegetable and animal origin (biodiesel) can significantly alter its performance. Therefore, the aim of this study was to quantify the change in torque, power and consumption of agricultural Diesel engine fuel using minerals and vegetables fuels. It was used a tractor power take-off coupled to a magnetic brake dynamometer (for measuring speed and torque for subsequent calculation of power), and a flow meter (for measuring the hourly fuel consumption and specific fuel consumption calculation). Eleven different fuels (S10 mineral diesel with 5%, 10%, 15%, 20% and 50% biodiesel and mineral diesel S500 with 5%, 10%, 15%, 20% and 50% biodiesel, have been used pure biodiesel B100). The results indicate that the increase of biodiesel in mineral diesel reduces torque and power, increases the specific fuel consumption and practically does not change the hourly consumption. This reduction in torque and power occurs with greater intensity in Diesel S10. Additions of 10% biodiesel in mineral diesel reduces the maximum torque 1.65 Nm (0.6%), the maximum power at 0.33 kW (0.6%) and increases the specific fuel consumption of 3.6 g kWh -1(1.3%).

Performance of a diesel engine using different biodiesel blends and injection configurations

“…The lower calorific value and the change in the behavior of the heat release during the combustion process are factors that highlight the need for engine adjustments to obtain a better performance and lower specific consumption with these fuels. The results follow the same trend as that reported by Perin et al (2017), who found that the specific consumption increased by 7.10% and 9.33% for B20 and B50, respectively, compared to B10. Godeša et al (2010), on the other hand, observed corresponding increases in the specific consumption of 1.25% and 2.5% for B20 and B30, respectively.…”

Caracterização dos sistemas de injeção de combustível e admissão de ar em motores de tratores agrícolas

“…As máquinas agrícolas são empregadas para realizar diversas operações ao longo do processo produtivo, sendo o combustível um fator que representa elevado custo aos produtores (PERIN et al, 2017). Diante desta conjuntura, a indústria de máquinas agrícolas busca o desenvolvimento e a implementação de novas tecnologias em seus motores que visam, principalmente, o aumento da eficiência e otimização de recursos, culminando com a redução dos níveis de emissões.…”