Desempenho na barra de tração de um trator agrícola de pneus, alimentado com misturas de óleo diesel e óleo de soja reutilizado

Siqueira, Wagner da Cunha; Fernándes, Haroldo Carlos; Teixeira, Mauri Martins; Santos, Nerílson Terra; Abrahão, Selma Alves

doi:10.1590/s0034-737x2013000600007

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…Given that the tractor transforms the fuel energy into power and makes it available to the drawbar, PTO, and wheelsets (Gabriel Filho et al, 2010), the smaller tread width affected DP, which reached 46.52 kW, and this width yielded the highest DPF (50%), corroborating the findings of Monteiro et al (2013) and Siqueira et al (2013). The analysis of the temperature variables that affect engine performance indicated that the interaction of tread width with different travel speeds only affected intake air temperature (Table 2), and the average temperature was higher using the smaller tread width, whereas terrain slope did not significantly affect intake air temperature.…”

Section: Resultssupporting

confidence: 66%

Energy Performance in Disc Harrowing Operation in Different Gradients and Gauges

et al. 2019

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The operational performance of the agricultural tractor can be increased by adjusting parameters such as tire inflation pressure, axle mass distribution and gauge opening, which is a very divergent factor in controlled-traffic production. The objective of the experiment was to measure the energy performance of a 93 kW agricultural tractor in intermediate grading operation in two slopes (flat and sloping) and three gauge configurations (closed, intermediate and open) in mobilized soil. Energy performance was determined from the following parameters: slip, engine speed, actual effective speed, hourly and specific fuel consumption; strength, power and performance on the drawbar. Turbo pressure and temperature monitoring was also performed at six different engine points. The experiment was conducted in double factorial arrangement (2 slopes and 3 gauges), with four replications, totaling 24 plots. Data were analyzed for normality and homoscedasticity of the residues, after ANOVA and when significant, the means test. Tilts and tire gauges did not differ statistically, so it can be concluded that depending on the operation do not interfere with operating performance.

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Section: Resultssupporting

confidence: 66%

Energy Performance in Disc Harrowing Operation in Different Gradients and Gauges

et al. 2019

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“…Neves et al (2018) found similar data and concluded that the types of biodiesels (soybean and murumuru) and the blend proportions (B0, B5, B15, B25, B50, and B100) did not influence drawbar power and displacement velocity. Siqueira et al (2013) evaluated the same variables in a Valmet 65ID tractor fueled with biodiesel blends of waste soybean oil and diesel at proportions of 0, 25, 50, 75, and 100% and concluded that the proportion factor did not influence (p<0.05) DF, V, and DP. On the other hand, tests carried out on an MF-399 tractor operating in soil tillage and fueled with three biodiesel proportions from waste vegetable oil added to diesel (10, 20, and 30%) increased the drawbar pull force and its interaction effects were significant at 5 and 1% probability (Mosavi et al, 2021).…”

Section: Sources Of Variationmentioning

confidence: 99%

Operational Performance of an Agricultural Tractor as a Function of Mixture Proportions and Type of Biodiesel

et al. 2022

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The growing demand for clean energy aimed at reducing greenhouse gas emissions associated with the oil crises has encouraged the search for biofuels, among which biodiesel has stood out in the gradual replacement of diesel. This study aimed to evaluate the performance of an agricultural tractor fueled with four types of biodiesels (peanut, sunflower, soybean, and waste frying oil) added to diesel at five proportions (0, 25, 50, 75, and 100% biodiesel, that is, B0, B25, B50, B75, and B100, respectively). The experiment was carried out at the Laboratory of Biofuel and Machinery Testing at FCAV-UNESP. A Valtra BM100 4×2 FWD tractor with a power of 74 kW (100 hp) was used. The drawbar pull force (DF), displacement velocity (V), drawbar power (DP), volumetric fuel consumption (VC), weight fuel consumption (WC), and specific fuel consumption (SC) were studied. The factors did not influence DF, V, and DP. The proportion factor influenced (p<0.01) the volumetric fuel consumption, in which diesel S50 was 14% more efficient than B100. Weight fuel consumption was influenced by the type of biodiesel in the blend. Diesel had the lowest specific fuel consumption (328 g kW h −1 ). The biodiesel fraction showed a direct relationship with the consumption parameters, with sunflower showing the lowest WC value in the B75 and B100 blends.

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“…According to Table 2, regarding all engine rotation speeds (columns) no significant differences for the drawbar traction power were found. Siqueira et al (2013) also found similar results when assessing the performance of agricultural tractors fueled with blends of diesel oil (DO) and reusable soy oil (RSO). In this case, the traction force was the same for all blends.…”

Section: Resultsmentioning

confidence: 60%

“…however, higher revs are less efficient due to the higher energy expenditure, which occurs due to the increased friction between the mobile and stationary components of the engine and the reduced fuel combustion time (Márquez, 2012). Siqueira et al (2013) observed the same while studying several blends of diesel oil (DO) and reusable soy oil (RSO) to evaluate the yield of an agricultural tractor; the higher the power, the lower the specific consumption. Paula et al (2016) also found similar results when using diesel fuel and soy biodiesel in agricultural tractors.…”

Section: Resultsmentioning

confidence: 83%

Agricultural tractor performance fueled with proportions of biodiesel

et al. 2022

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Among the fuel sources used nowadays, biofuels stand out for being renewable and biodegradable. In this sense, this work aimed to evaluate the performance and smoke opacity of an agricultural tractor in soil tillage activities, depending on the biodiesel blends and the engine rotation. Were used six blends of soy (S) and murumuru (M) biodiesel and seven engine rotation speeds. The results showed a directly proportional relationship between the drawbar power and the engine rotation decrease. Regarding hourly volumetric and weighted consumption, both presented the same behavior: the lowest consumptions were reached when using the two highest proportions of murumuru biodiesel, yet the highest specific consumption was obtained when using the 90M10S blend. Furthermore, the lowest opacity was emitted when the tractor was fueled with the three blends having the highest proportions of murumuru biodiesel. Blends with more than 80% of murumuru biodiesel promote lower fuel consumption than blends with a higher concentration of soy biodiesel. Regardless of the biodiesel blend, the traction force at the drawbar is directly proportional to an increase in the engine rotation speed. In smoke opacity, mixtures with more than 70% murumuru biodiesel promote less opacity than mixtures with a higher concentration of soy biodiesel.

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Desempenho na barra de tração de um trator agrícola de pneus, alimentado com misturas de óleo diesel e óleo de soja reutilizado

Cited by 5 publications

References 6 publications

Energy Performance in Disc Harrowing Operation in Different Gradients and Gauges

Energy Performance in Disc Harrowing Operation in Different Gradients and Gauges

Operational Performance of an Agricultural Tractor as a Function of Mixture Proportions and Type of Biodiesel

Agricultural tractor performance fueled with proportions of biodiesel

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