Last edited by Daimi
Monday, May 4, 2020 | History

2 edition of Heavy vehicle drag reduction found in the catalog.

Heavy vehicle drag reduction

SAE Commercial Vehicle Engineering Congress & Exhibition

Heavy vehicle drag reduction

overviews, multiple trailer-mounted devices; tires, splash and spray and emissions; full scale assessments.

by SAE Commercial Vehicle Engineering Congress & Exhibition

  • 78 Want to read
  • 28 Currently reading

Published by Society of Automotive Engineers in Warrendale, PA .
Written in English


Classifications
LC ClassificationsTL
The Physical Object
Pagination130 p. :
Number of Pages130
ID Numbers
Open LibraryOL19499011M
ISBN 100768016967

The Heavy Vehicle Driver’s Handbook (PDF, KB) is an important guide that provides detailed information on what you need to know to operate a heavy vehicle safely in South Australia. You will need to refer to this book in conjunction with The Driver’s Handbook if you are getting your heavy vehicle driver’s licence.. We also encourage experienced drivers to read the handbook to check. At highway speeds, over half the energy required is used to overcome aerodynamic drag. A reduction of aerodynamic drag of 25 percent will reduce highway fuel consumption by percent. Reductions in aerodynamic drag of up to 50 percent have been achieved - however, care needs to be taken to ensure the power-train receives sufficient cooling.

Personal aircraft drag reduction Unknown Binding – January 1, by Bruce H Carmichael (Author) out of 5 stars 1 rating. See all formats and editions Hide other formats and editions. The Amazon Book Review Author interviews, book reviews, editors' picks, and more. 5/5(1). Heavy vehicle selection guide Introduction This guide is designed to help you, as a heavy vehicle purchaser, choose the right vehicle to improve your business’s efficiency, safety and ultimately – profitability. The purchase or lease of a new vehicle can add real .

  In order to improve the fuel efficiency of heavy vehicles, flow control devices aiming at aerodynamic drag reduction are often utilized. Computational simulation has been widely used in the investigation of fluid dynamics associated with aerodynamic drag over a heavy vehicle and control effects of many drag reduction : Sangseung Lee, Myeongkyun Kim, Donghyun You. Vehicle power consumption reduction can be achieved by various means such as improved engine efficiency and aerodynamic drag reduction. From the early days, the designers recognized the importance of drag reduction and tried to streamlined the design. Since the early th century.


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Heavy vehicle drag reduction by SAE Commercial Vehicle Engineering Congress & Exhibition Download PDF EPUB FB2

Kim et al. [5] reported the examination on salient drag reduction of a heavy vehicle using modified cab-roof fairings. The results are to provide useful information for the design of new cab-roof. Heavy Vehicle Drag Reduction: Experimental Evaluation and Design Author: Jim Ross Subject: Presentation given at the U.S.

Department of Energy's Heavy Vehicle Systems Review, Argonne National Laboratory, AprilKeywords: drag reduction. Drag Reduction Achieved through Heavy Vehicle Platooning Thesis Defense Andrew Watts.

04/15/ Reduces aerodynamic drag, saves fuel Figure 1. Heavy Vehicle Platoon [1] Drafting •Drafting provides aerodynamic drag reduction for follower vehicle •Lead vehicle encounters “wall of air,” follow vehicleFile Size: 1MB.

@article{osti_, title = {Progress in Reducing Aerodynamic Drag for Higher Efficiency of Heavy Duty Trucks (Class )}, author = {McCallen, Rose and Couch, Richard and Hsu, Juliana and Browand, Fred and Hammache, Mustapha and Leonard, Anthony and Brady, Mark and Salari, Kambiz and Rutledge, Walter and Ross, James and Storms, Bruce and Heineck, J T and Driver, David and Bell, Cited by: The technologies that can be used to reduce fuel consumption in medium- and heavy-duty vehicles vary by vehicle type, duty cycle, and the year the technology becomes available.

For instance, a Class 8 tractor trailer operating on the interstate will benefit from technologies that improve aerodynamic performance and reduce rolling resistance. This book provides an introduction to ground vehicle aerodynamics and methodically guides the reader through the various aspects of the subject.

Those needing specific information or a refresher can easily jump to the material of interest. There is a particular emphasis on various vehicle types (pas.

Improving vehicle fuel consumption, performance and aerodynamic efficiency by drag reduction especially in heavy vehicles is one of the indispensable issues of automotive industry. Abstract. The drag reduction capability of tractor base bleeding is investigated using a combination of experiments and numerical simulations.

Wind tunnel measurements are made on a scale heavy vehicle model at a vehicle width-based Reynolds number of ,Cited by: 5. The test focused on three areas within the tractor-trailer system: tractor-trailer gap, trailer sides and trailer wake.

A 23% aerodynamic drag reduction was demonstrated by utilizing trailer skirts, base plates and lengthened side extenders and air fairing.

A 20% drag reduction was also demonstrated for several combinations of by:   Researchers have achieved 15 to 18 percent reduction in drag by placing the actuators on the back surface of cars and trucks.

Deploying this improved drag reduction on cars and trucks would be equal to the improved CAFE standards from to Being able to apply mileage improvements to the active fleet of million older cars in the USA would have over ten times the impact of just.

Improving vehicle fuel consumption, performance and aerodynamic efficiency by drag reduction especially in heavy vehicles is one of the indispensable issues of automotive industry.

In this work, the effects of adding append devices like deflector and cab vane corner on heavy commercial vehicle drag reduction were investigated. For this purpose, the vehicle body structure was modeled Cited by: 3. Aerodynamic drag reduction contribution. Wide-base single tires add about 45% to - overall vehicle fuel economy.

U.S. Department of Energy, Transportation Energy Data Book, Edit July Tractor-Trailer integration (GSF) radically decreases aerodynamic drag. Up to 40% reduction in fuel use. million combination trucks. Reducing Aerodynamic Drag and Fuel Consumption Year statistics for combination trucks (tractor-trailers) on nation’s highways * million trucks registered billion miles on nation’s highways, % increase/yr billion gallons diesel fuel consumed, % increase/yr mpg, or gallons/ miles ~ million barrels/day **File Size: 2MB.

Various studies have been conducted to evaluate heavy vehicle drag reductions induced by the cab roof and side fairings. Their wind-averaged drag reduction percentages on a heavy vehicle relevant to this study vary approximately from 9% to 17% (Drollinger, ; Cooper,Leuschen and Cooper, ). Trailer-front fairingsCited by: base-drag reduction appears to be a result of a modification of the boundary layer at the base of the vehicle.

One theory for the observed drag reduction is that the thickened boundary layer acts as a buffer between the high-speed external flow and the separated base flow. The shear layer that develops between the high-File Size: KB.

Heavy vehicle aerodynamics and fuel efficiency. This paper reviews the aerodynamics drag losses which make the vehicles to utilize large capacity engines.

(G Buresti, ) carried out a research on Methods for the drag reduction of bluff bodies and their application to heavy road- vehicles in which they stated that in order to reduceFile Size: 3MB. The optimization of aerodynamic drag represents an important opportunity for a reduction in fuel consumption for heavy commercial vehicles.

Regulation relating to vehicle dimensions and the logistic needs for maximum available space for cargo set limitations on the aerodynamic design of heavy trucks.

the vehicle using the concepts of aerodynamics as to enhance the efficiency of vehicles [1]. Fuel consumption due to aerodynamic drag consumed more than half of the vehicle’s energy. Thus, the drag reduction program is one of the most interesting approaches to cater this matter.

Aerodynamic dragCited by: 8. Although friction drag occurs along the external surfaces of heavy vehicles, particularly along the sides and top of buses and trailers, its contribution to overall drag is small (10% or less) and is not a strong candidate for drag-reduction technologies.

For heavy-duty vehicles, such as tractor-trailer combinations, the drag coefficient increasesFile Size: 2MB. Although all trucks would benefit from aerodynamic drag reduction, those with high average speed and miles traveled would benefit most.

Thermal management projects have been coordinated with the DOE Heavy Vehicle Systems Optimization Program. D.C.: The National Academies Press.

ORNL (Oak Ridge National Laboratory). Effect of Wide. Heavy Vehicle Technology Paperback – Decem by D. Leeming (Author), R. Hartley (Author)Cited by: 8.aerodynamic drag. At 70 miles per hour, a common highway speed today, overcoming aerodynamic drag represents about 65% of the total energy expenditure for a typical heavy truck vehicle.

Reduced fuel consumption for heavy vehicles can be achieved by altering truck shapes to decrease the aerodynamic resistance (drag). ItCited by: Drag force is defined as the force acting in the opposite direction of vehicle motion. Aerodynamic drag is defined by the following equation D A = ½ ev 2 C D A Where, C D = Coefficient of aerodynamic drag 2A = Frontal area of the vehicle (m) Drag force is a function of vehicle drag’s coefficient C File Size: KB.