Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles

Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles

Author: National Research Council

Publisher: National Academies Press

Published: 2010-07-30

Total Pages: 251

ISBN-13: 0309159474

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Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles evaluates various technologies and methods that could improve the fuel economy of medium- and heavy-duty vehicles, such as tractor-trailers, transit buses, and work trucks. The book also recommends approaches that federal agencies could use to regulate these vehicles' fuel consumption. Currently there are no fuel consumption standards for such vehicles, which account for about 26 percent of the transportation fuel used in the U.S. The miles-per-gallon measure used to regulate the fuel economy of passenger cars. is not appropriate for medium- and heavy-duty vehicles, which are designed above all to carry loads efficiently. Instead, any regulation of medium- and heavy-duty vehicles should use a metric that reflects the efficiency with which a vehicle moves goods or passengers, such as gallons per ton-mile, a unit that reflects the amount of fuel a vehicle would use to carry a ton of goods one mile. This is called load-specific fuel consumption (LSFC). The book estimates the improvements that various technologies could achieve over the next decade in seven vehicle types. For example, using advanced diesel engines in tractor-trailers could lower their fuel consumption by up to 20 percent by 2020, and improved aerodynamics could yield an 11 percent reduction. Hybrid powertrains could lower the fuel consumption of vehicles that stop frequently, such as garbage trucks and transit buses, by as much 35 percent in the same time frame.


Reducing Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two

Reducing Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2020-06-15

Total Pages: 399

ISBN-13: 0309496357

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Medium- and heavy-duty trucks, motor coaches, and transit buses - collectively, "medium- and heavy-duty vehicles", or MHDVs - are used in every sector of the economy. The fuel consumption and greenhouse gas emissions of MHDVs have become a focus of legislative and regulatory action in the past few years. This study is a follow-on to the National Research Council's 2010 report, Technologies and Approaches to Reducing the Fuel Consumption of Medium-and Heavy-Duty Vehicles. That report provided a series of findings and recommendations on the development of regulations for reducing fuel consumption of MHDVs. On September 15, 2011, NHTSA and EPA finalized joint Phase I rules to establish a comprehensive Heavy-Duty National Program to reduce greenhouse gas emissions and fuel consumption for on-road medium- and heavy-duty vehicles. As NHTSA and EPA began working on a second round of standards, the National Academies issued another report, Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two: First Report, providing recommendations for the Phase II standards. This third and final report focuses on a possible third phase of regulations to be promulgated by these agencies in the next decade.


Annual Energy Outlook 2016 With Projections to 2040

Annual Energy Outlook 2016 With Projections to 2040

Author: Energy Dept., Energy Information Administration

Publisher: Government Printing Office

Published: 2017-02-15

Total Pages: 260

ISBN-13: 9780160934827

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The Annual Energy Outlook 2016 presents long-term projections of energy supply, demand, and prices through 2040. The projections, focused on U.S. energy markets, are based on results from EIA's National Energy Modeling System which enables EIA to make projections under alternative, internally consistent sets of assumptions.


Review of the 21st Century Truck Partnership, Second Report

Review of the 21st Century Truck Partnership, Second Report

Author: National Research Council

Publisher: National Academies Press

Published: 2012-07-04

Total Pages: 190

ISBN-13: 0309222478

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In July 2010, the National Research Council (NRC) appointed the Committee to Review the 21st Century Truck Partnership, Phase 2, to conduct an independent review of the 21st Century Truck Partnership (21CTP). The 21CTP is a cooperative research and development (R&D) partnership including four federal agencies-the U.S. Department of Energy (DOE), U.S. Department of Transportation (DOT), U.S. Department of Defense (DOD), and the U.S. Environmental Protection Agency (EPA)-and 15 industrial partners. The purpose of this Partnership is to reduce fuel consumption and emissions, increase heavy-duty vehicle safety, and support research, development, and demonstration to initiate commercially viable products and systems. This is the NRC's second report on the topic and it includes the committee's review of the Partnership as a whole, its major areas of focus, 21CTP's management and priority setting, efficient operations, and the new SuperTruck program.


Automotive Emissions Regulations and Exhaust Aftertreatment Systems

Automotive Emissions Regulations and Exhaust Aftertreatment Systems

Author: John Kasab

Publisher: SAE International

Published: 2020-08-31

Total Pages: 464

ISBN-13: 0768099560

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The objective of this book is to present a fundamental development of the science and engineering underlying the design of exhaust aftertreatment systems for automotive internal combustion engines. No pre-requisite knowledge of the field is required: our objective is to acquaint the reader, whom we expect to be new to the field of emissions control, with the underlying principles, control methods, common problems, and fuel effects on catalytic exhaust aftertreatment devices. We do this in hope that they can better understand the previous and current generations of emissions control, and improve upon them. This book is designed for the engineer, researcher, designer, student, or any combination of those, who is concerned with the control of automotive exhaust emissions. It includes discussion of theory and fundamentals applicable to hardware development.


Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two

Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two

Author: National Research Council

Publisher: National Academies Press

Published: 2014-10-02

Total Pages: 227

ISBN-13: 0309302404

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Medium- and heavy-duty trucks, motor coaches, and transit buses - collectively, "medium- and heavy-duty vehicles", or MHDVs - are used in every sector of the economy. The fuel consumption and greenhouse gas emissions of MHDVs have become a focus of legislative and regulatory action in the past few years. Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two is a follow-on to the National Research Council's 2010 report, Technologies and Approaches to Reducing the Fuel Consumption of Medium-and Heavy-Duty Vehicles. That report provided a series of findings and recommendations on the development of regulations for reducing fuel consumption of MHDVs. This report comprises the first periodic, five-year follow-on to the 2010 report. Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two reviews NHTSA fuel consumption regulations and considers the technological, market and regulatory factors that may be of relevance to a revised and updated regulatory regime taking effect for model years 2019-2022. The report analyzes and provides options for improvements to the certification and compliance procedures for medium- and heavy-duty vehicles; reviews an updated analysis of the makeup and characterization of the medium- and heavy-duty truck fleet; examines the barriers to and the potential applications of natural gas in class 2b through class 8 vehicles; and addresses uncertainties and performs sensitivity analyses for the fuel consumption and cost/benefit estimates.


Advances in Turbocharged Racing Engines

Advances in Turbocharged Racing Engines

Author: Alberto Boretti

Publisher: SAE International

Published: 2019-03-07

Total Pages: 238

ISBN-13: 0768000149

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Racing continues to provide the preeminent directive for advancing powertrain development for automakers worldwide. Formula 1, World Rally, and World Endurance Championship all provide engineering teams the most demanding and rigorous testing opportunities for the latest engine and technology designs. Turbocharging has seen significant growth in the passenger car market after years of development on racing circuits. Advances in Turbocharged Racing Engines combines ten essential SAE technical papers with introductory content from the editor on turbocharged engine use in F1, WRC, and WEC-recognizing how forced induction in racing has impacted production vehicle powertrains. Topics featured in this book include: Fundamental aspects of design and operation of turbocharged engines Electric turbocharger usage in F1 Turbocharged engine research by Toyota, SwRI and US EPA, Honda, and Caterpillar This book provides a historical and relevant insight into research and development of racing engines. The goal is to provide the latest advancements in turbocharged engines through examples and case studies that will appeal to engineers, executives, instructors, students, and enthusiasts alike.


Clean Air Handbook

Clean Air Handbook

Author: Hunton Andrews Kurth LLP

Publisher: Rowman & Littlefield

Published: 2023-09-18

Total Pages: 411

ISBN-13: 1641434260

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Revised to include several recent and important Clean Air Act developments, this completely updated fifth edition of the Clean Air Handbook provides you with a broad overview of all the complex regulatory requirements of the Act and its amendments. In addition to offering an introduction to the history and structure of the Clean Air Act, the most complex piece of environmental legislation ever enacted, the Handbook examines the Environmental Protection Agency's (EPA) efforts to implement the Act. Those efforts include EPA's initiatives to impose emission reduction requirements through new air quality standards adopted in 1997 and made more stringent in 2006 and EPA's rules and guidance implementing the Title I nonattainment program and ongoing federal efforts to address interstate pollution issues. The Handbook also includes summaries of EPA's rules for state-administered Title V operating permit programs and the key rules promulgated by EPA to implement the Title IV acid rain program.