Fuel consumption while harvesting of crops with axial flow combine-harvester

Abstract

Hourly and per ton fuel consumption of combine harvester with axial threshing-separation drum is determined for idle running conditions and for conditions of cutting winter wheat ‛Zentos’, summer wheat ‘Estrad and winter barley ‘Kruiser’. At zero combine harvester speed and at engine speed of rotation equal to 2100 rpm and the gears of cutter bar, threshing device and straw chopper is turned off fuel consumption reaches 24.0±0.28 l h-1. If the rotation speed of the engine crankshaft was reduced to 1600 rpm, the hourly fuel consumption was 14.1±0.31 l. When combine-harvester does not operate, the gears of cutter bar and threshing apparatus should be switched off and the rotation speed should be minimized to at least 1600 rpm. When the rational crop fl ow of 12 kg s-1 is supplied into combine-harvester, the hourly fuel consumption of winter wheat harvesting is 70.0 l, that of summer wheat is 79.2 l, that of winter barley is 52.1 l. Variation in fuel consumption depends on operation conditions, yield, the ratio of grains and all the crop mass, and the combine-harvester running speed. Hourly fuel consumption of grain unloading from the grain tank is 7.8 l.