Effect of hydraulic and solid ballast on agricultural tractor performance

• Autor(a) principal: Ganancini Zimmermann, Gabriel
• Data de Publicação: 2021
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista ciência agronômica (Online)
• Texto Completo: http://periodicos.ufc.br/revistacienciaagronomica/article/view/88917
• topic: Agricultural suitability. Fuel consumption. Engine thermal effi ciency. Ballast.

The efficiency of the agricultural tractor can be increased with its assertive operational adequacy, ballastingbeing one of the fundamental factors for obtaining good performance levels, as it is closely related to energy and operationalperformance. Thus, the objective of this experiment was to evaluate the effect of hydraulic and solid ballast, under differentfractions, on the performance of the agricultural tractor. The banded experiment was conducted in a randomized block design,with the treatments consisting of the five configurations of base mass (B0), B0 + 40% hydraulic (HB 40%), B0 + 40% solid(SB 40%), B0 + 75% hydraulic (HB 75%) and B0 + 75% solid (SB 75%), and four target speeds, with fi ve repetitions, totaling 100experimental units. To determine the efficiency of the tractor, 4 x 2 AFWD with a rated power of 125.2 kW, the parametersof wheel slip, engine rotation, hourly and specific fuel consumption, power, power, and efficiency in the drawbar, operatingspeed and thermal efficiency of the engine were monitored. The collected data were subjected to analysis of variance/ whensignificant, submitted to the Tukey test and regression analysis. The obtained results verified that using the hydraulic ballast inthe fraction of 75% presented superiority in the energetic and operational performance, highlighting the engine rotation, forcein the drawbar, operational speed, and specific fuel consumption. The increase in operational speed can provide gains in energyand operational efficiency; however, it can generate overload on the engine in some ballast configurations.