Drag Reduction of Heavy Vehicles Using Various Side Skirts

Author(s):  
BaeGeun Hwang ◽  
Eui Jae Lee ◽  
Jeong Jae Kim ◽  
Sang Joon Lee

There are many attempts to save the cost of transportation. Especially, drag reduction of heavy vehicles such as truck or tractor-trailer have enormous effect on the reduction of fuel consumption and CO2 emission, because road freight transport using heavy vehicles occupies majority in physical distribution cost.

2018 ◽  
Vol 10 (8) ◽  
pp. 2754
Author(s):  
Heikki Liimatainen ◽  
Phil Greening ◽  
Pratyush Dadhich ◽  
Anna Keyes

The potential effects of implementing longer and heavier vehicles (LHVs) in road freight transport have been studied in various countries, nationally and internationally, in Europe. These studies have focused on the implementation of LHVs on certain types of commodities and the experience from countries like Finland and Sweden, which have a long tradition of using LHVs, and in which LHVs used for all types of commodities have not been widely utilised. This study aimed to assess the impacts of long and heavy vehicles on various commodities in the United Kingdom based on the Finnish experiences in order to estimate the possible savings in road freight transport vehicle kilometres, costs, and CO2 emissions in the United Kingdom if LHVs would be introduced and used similarly to in Finland in the transport of various commodities. The study shows that the savings of introducing longer and heavier vehicles in the United Kingdom would be 1.5–2.6 billion vehicle kms, £0.7–1.5 billion in transport costs, and 0.35–0.72 Mt in CO2 emissions. These findings are well in line with previous findings in other countries. The results confirm that considerable savings in traffic volume and emissions can be achieved and the savings are very likely to outweigh possible effects of modal shift from rail to road.


2020 ◽  
Vol 10 (1) ◽  
pp. 13-26 ◽  
Author(s):  
Panagiotis Kotsios ◽  
Dimitrios Folinas

Road transport is one of the most popular and practical means of freight transport in the world today. However, the cost of road freight transport may differ from one country to the next due to variances in a number of cost factors, including fuels, wages, taxation, tolls, insurance, maintenance, tyres, repairs, parking spaces, etc. The goal of this research was to measure and compare the cost of road freight transport in the 20 European countries with the highest recorded volume of tonne-kilometres, in order to draw conclusions about the cost competitiveness of road freight transport among them. Cost competitiveness in the sample was measured by 4 main cost categories: fuels, drivers' wages, tyres, and tolls. The results show large cost variations between countries. The countries found to have the lowest road freight transport cost were Lithuania, Poland and Bulgaria, and those with the highest costs were Norway, Austria, and the UK. The largest differences in costs were met in tolls and other road taxes, followed by drivers' wages, fuels, and finally tyres.


2013 ◽  
Vol 1 (1) ◽  
pp. 1-3
Author(s):  
Dušan Halaj ◽  

The paper deals with optimizing fuel consumption through the use of information system in road freight transport. The aim is to calculate and compare the costs for an operation with the information system as well as without it.


2013 ◽  
Vol 3 (3) ◽  
pp. 16-27
Author(s):  
Wessel Pienaar

The paper deals with aspects of efficiency within the five modes of freight transport, with special reference to the operating cost and fuel consumption rates between South Africa’s largest industrial cities and seaports. In particular, the paper deals with (a) the opportunities that exist for the achievement of efficiency in freight transport; (b) the subgroups of economies that can enhance efficiency attainment in the freight transport industry; (c) prevailing cost structures, operating cost and fuel consumption rates within the five modes of freight transport; and (d) the salient economic features of the freight transport market. The research approach and methodology combine (a) a literature survey; (b) empiric research, (c) an analysis of the cost structures of freight transport operators from different modes of transport; and (d) interviews conducted with specialists in the freight transport industry.


2020 ◽  
Vol 115 ◽  
pp. 102610 ◽  
Author(s):  
Toheed Ghandriz ◽  
Bengt Jacobson ◽  
Leo Laine ◽  
Jonas Hellgren

2020 ◽  
Vol 207 ◽  
pp. 05001
Author(s):  
Martin Ivanov

In today’s demanding reality, making the on-road freight vehicles more fuel-efficient and lower emissive, is becoming more and more important design issue. During the past years the light car industry has managed to reduce significantly the aerodynamic losses, whereas the freight transport did not have much development in this aspect. For heavy vehicles such as tractor-trailers, drag is one of the dominant reasons for energy loss due to poor aerodynamic shape and large surfaces facing the flow direction. That is why, the presented study focuses on the development of technological solution for aerodynamic loss compensation, devoted to the freight transport vehicles. An innovative approach for drag compensation, based on airfoil device located in the tractor-trailer gap, is tested by the methods of the Computational fluid dynamics (CFD), in 2D simulation study. The lift and drag force distribution over the airfoil are analyzed in the restricted area, in relation to the airfoil size. The results show that, the values increase with the increase of the size of the profile. However, important model limitations are described as well, which will assist the further development of the proposed device.


2013 ◽  
Vol 16 (1) ◽  
pp. 18-21 ◽  
Author(s):  
Mário Szabó ◽  
Radoslav Majdan ◽  
Zdenko Tkáč ◽  
Rastislav Čápora ◽  
Ľubomír Hujo

Abstract This paper deals with the importance of fuel economy in road freight transport. It provides the calculation of financial savings for fuel savings of 0.5 l per 100 km. In the subsequent part, some factors that influence the fuel consumption are specified, e.g. aerodynamic resistance, rolling resistance, and tyre inflation pressure. The effect of tyre inflation pressure on fuel economy has been tested on four selected towing vehicles. Based on the results obtained, it can be stated that tyre pressure has a great impact on fuel consumption. A one-bar pressure reduction of tyres can increase the fuel consumption by 0.5 l per 100 km.


Author(s):  
Kateryna Dodukh ◽  
◽  
Anton Palchyk ◽  

The article deals with the influence of road conditions on fuel consumption by vehicles when transporting goods and passengers, which depends on the speed of movement. The optimum fuel consumption corresponds to the optimum speed of movement which is distinctive for each type of car. Increase or decrease of the optimum speed leads to increased fuel consumption. Elevations reduce the speed and increase fuel consumption by up to 30%. Road conditions (width of roadway, condition of surface, presence of horizontal curves, longitudinal slopes, pedestrian crossings, settlements) cause a change in the speed of movement and consumption of fuel and lubricants. It is possible to take into account the road conditions by plotting the speed of movement along the route, the change in the speed occuring during the travel time and socio-economic indicators of the route. Based on this chart, fuel costs and route times are calculated. Since the cost of fuel is 50-52% of the cost of transportation of goods and passengers, the cost will be roughly 2 times higher. The cost of transportation of goods by trucks is characterized by the cost of transportation, and the transportation of passengers by the cost and time spent by passengers when traveling the route.


2021 ◽  
Vol 13 (17) ◽  
pp. 9641
Author(s):  
Nathalie Touratier-Muller ◽  
Jacques Jaussaud

The transport procurement process is based on criteria selected by shippers when soliciting tenders from carriers. Although sustainable transport indicators are not yet a formal selection criterion in France, some indicators are starting to be gradually considered in freight transport contracts between shippers and carriers. Dispersed information can be gathered regarding Euro 5 and Euro 6 standards compliance for trucks, their fuel consumption, the number of signatory shippers to the CO2 reduction charter, and the search for less-polluting alternative freight solutions. However, these elements are difficult to quantify, and it is often hard to formalise and evaluate their related performance. Therefore, the objective of this article is to draw up, at the request of ADEME (the French Environment and Energy Management Agency), a series of reliable, operational sustainable transport indicators that can be applied to all shippers regardless of their size or industry sector. As part of the FRET 21 charter deployment in France, this article proposes a list of measurable sustainability indicators to support transport buyers when selecting freight carriers.


2022 ◽  
pp. 100-114
Author(s):  
Panagiotis Kotsios ◽  
Dimitrios Folinas

The goal of this research was to measure the cost of road freight transport in the 20 European countries with the highest recorded quantity of tonne-kilometres and assess their competitiveness. Cost competitiveness was measured by four main cost categories: fuels, drivers' wages, tyres and tolls, and the results show large cost variances between countries. The countries with the lowest road freight transport cost were Bulgaria, Poland, and Romania, and those with the highest costs were Norway, Austria, and the UK. The largest differences in costs were met in tolls and other road taxes, followed by drivers' wages, fuels, and finally, tyres.


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