ANALYSIS OF FUEL CONSUMPTION SENSITIVITY IN FORESTRY ROAD TRANSPORT

Pompeu Paes Guimarães,Renato César Gonçalves Robert,Julio Eduardo Arce,Eduardo Da Silva Lopes,Fernando - Seixas,Nilton Cesar Fiedler

doi:10.5380/rf.v49i2.49137

Abstract

The objective of this work was to analyze how the variation of traveled distance, operational speed, journey time and net cargo transported influence the fuel consumption of vehicles in forest road transport. The data were collected in this operation, covering the area between the regions of Campo do Tenente (forest unit) and Piên (industrial unit), in the state of Paraná. We analyzed the partial elements, loaded trip and empty trip, as well as the total transport cycle (loading, unloading and travel). Using the same mechanical tractor, two vehicular compositions were studied, an articulated vehicle (truck tractor + semitrailer + trailer) and a conjugated vehicle (truck tractor + semitrailer). The vehicle telemetric system was used to perform the data collection of travel time, traveled distance, speed average and fuel consumption of the both vehicles. The results showed that the higher fuel consumption occurred in the loaded trips for longer distances. The sensitivity of fuel consumption was mostly influenced by was traveled distance, so it is recommended the use of vehicles of less load capacity for shorter distances.

Highlights

Harvesting and transporting of wood are generally the costliest operations in the forest production chain.Transportation is impacted by the impossibility of using vehicles with higher load capacity due to the poor quality of roads, especially in terms of slopes and steep declivity and pavement quality standards (FIEDLER, 2018).The road modal has been privileged in public policy decisions, probably due to the absence of long-term cost analysis (ELLER et al, 2011)
MATERIAL AND METHODS Data were collected on the operational system of forest road transport to an industrial unit located in the municipality of Piên, Paraná, with forest stands located in Campo do Tenente
By varying the distance traveled in paths 10% lower for the total transport cycle with the conjugate while maintaining the average liquid load carried, there was a reduction of 11.6 l/transport cycle, while, with a 10% of the distance there was a higher estimated fuel consumption in the range of 15.4 l/cycle

Summary

Introduction

The road modal has been privileged in public policy decisions, probably due to the absence of long-term cost analysis (ELLER et al, 2011). In relation to Brazilian log transport, shipment costs account for up to 60% of the total logistics cost (ALVES et al, 2013). In this process a large volume of wood is moved through rural and urban (paved) roads (ANTONIADE et al, 2012). In the case of log handling, the characteristics of load specificity and shipment exclusivity allow the vehicle to operate loaded in only one direction, causing costs to become larger per unit volume (MACHADO et al, 2009).

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Conclusion