Desempenho de um trator agrícola na operação de escarificação em diferentes velocidades e configurações de implemento

Abstract

The objective of the work was to evaluate the energy performance of an agricultural tractor in scarifying operations at different operating speeds and implement configurations. The essential parameters to obtain energy efficiency during a ripping operation were evaluated, such as hourly fuel consumption, specific consumption, operational consumption, effective field capacity, and slippage. The work was developed in the municipality of Alegrete/RS, with the experiment being conducted in the experimental area of the Federal University of Pampa, using a mechanized set consisting of a TL 75 model tractor and a 5-rod scarifier. The experiment was carried out in a completely randomized design with a 2x3 factorial scheme, formed through the combination of two scarifier configurations and three displacement speeds with three replications, in a total of 18 experimental units. It was found that the higher theoretical speed obtained had a greater effect on the operational and energetic behavior of the tractor-scarifier set. The different positions of the scarifier rods changed the operational behavior of the tractor. The ideal scarification speed was 2.68 km h-1, aiming at hourly fuel consumption. The use of the parabolic rod in the scarifier helped to stabilize fuel consumption. You must alternate speeds within the same lower engine speed to reduce specific consumption during operation. The most suitable slip for the type of surface was obtained when the scarifier operated with the rods in the original mode.