Desempenho energético de um conjunto trator-grade em função do escalonamento de marchas e rotações do motor

Abstract

This study aimed to evaluate the energy performance of a tractor-grade set under different combinations of speed and engine revs. The experiment was conducted at the Federal University of Mato Grosso, Campus Sinop, MT. The design consisted of randomized blocks with eight treatments and four replications being 1Ax1550rpm (4km h-1 ), 5Bx1500rpm (4km h- 1 ), 5Bx1950rpm (5 km h-1 ), 1Ax2000rpm (5 km h-1 ), 6Bx1650rpm (6 km h-1 ), 2Ax1900rpm (6 km h-1 ), 2Ax2150rpm (7 km h-1 ) and 6Bx1950rpm (7 km h-1 ). We evaluated the tractor slip, hourly consumption, operating consumption and effective field capacity. The slip tractor was not influenced by the change of route combinations and engine speed. The scheduling engine rotation speed and the actual influence field capacity of the assembly and, consequently, the operating consumption. The hourly fuel consumption is lower when working with the gear 6B and 1650 engine rpm. Operating fuel consumption is lower when working with 6B march 1950 and engine speed.