The Influence of Aerodynamic Devices on the Fuel Consumption of Trucks

บทคัดย่อ

 This work presents a study on the effect of aerodynamics on fuel consumption of a truck (10.8-ton HINO model EH700) equipped with a modifi ed dump box. In this case study, fi ve different features of the dump box: (1) non-modifi ed truck, (2) closed-dump box, (3) opened-dump box (4) dump box equipped with fl at plate at the end rear, and (5) dump box equipped with ellipsoid shape at rear end, have been tested by means of Computational Fluid Dynamics (CFD), in order to investigate their infl uence on the fl ow around the truck and the drag.These were input parameters for predicting changing fuel consumption of the modifi ed truck. Compared to the non-modifi ed-dump box truck, the fuel consumption of the truck can be reduced by 8.63 for the opened-dump box, 12.73% for the dump box equipped with fl at plate at the end rear, and 21.86 % for the dump box equipped with ellipsoid shape at rear end. On the contrary the closed-dump box leads to an increase of fuel consumption of 7.76%.