Fuel Consumption of Heavy-Duty Trucks: Potential Effect of Future Technologies for Improving Energy Efficiency and Emissions

2003 ◽  
Vol 1842 (1) ◽  
pp. 9-19 ◽  
Author(s):  
Chris Saricks ◽  
Anant D. Vyas ◽  
Frank Stodolsky ◽  
John D. Maples
Keyword(s):  
Fuel Economy ◽  
Energy Use ◽  
Potential Effect ◽  
Heavy Duty ◽  
Heavy Duty Truck ◽  
Potential Impact ◽  
Future Technologies ◽  
Cost Projection ◽  
Energy Information

The results of an analysis of heavy-duty truck (Classes 2b through 8) technologies conducted to support the Energy Information Administration’s long-term projections for energy use are summarized. Several technology options that have the potential to improve the fuel economy and emissions characteristics of heavy-duty trucks are included in the analysis. The technologies are grouped as those that enhance fuel economy and those that improve emissions. Each technology’s potential impact on the fuel economy of heavy-duty trucks is estimated. A rough cost projection is also presented. The extent of technology penetration is estimated on the basis of truck data analyses and technical judgment.

Fuel Economy Improvement Potential Study with Energy Management of Heavy Duty Truck HEV for Long Haul Application

2015 ◽  
Author(s):  
Nobuhiro Kondo ◽  
Hideyuki Takahashi ◽  
Junichi Yamada ◽  
Keiki Tanabe ◽  
Takuya Kitasei ◽  
...  
Keyword(s):  
Energy Management ◽  
Fuel Economy ◽  
Heavy Duty ◽  
Heavy Duty Truck ◽  
Potential Study ◽  
Improvement Potential ◽  
Fuel Economy Improvement

Increasing Heavy-Duty Truck Fuel Economy

1991 ◽  
Author(s):  
James M. Ehlbeck ◽  
Michael von Mayenburg
Keyword(s):  
Fuel Economy ◽  
Heavy Duty ◽  
Heavy Duty Truck

Design Concept and Development of a Heavy-Duty Truck Diesel Engine for Better Fuel Economy

1983 ◽  
Vol 105 (3) ◽  
pp. 690-696
Author(s):  
A. Kobayashi ◽  
M. Ozawa ◽  
M. Noda ◽  
K. Kikuchi
Keyword(s):  
Fuel Economy ◽  
Fuel Injection ◽  
Engine Performance ◽  
Design Concept ◽  
Injection Timing ◽  
Heavy Duty ◽  
Heavy Duty Truck ◽  
Engine Combustion ◽  
New Material ◽  
Haul Truck

Due to the increasing price of fuel, demands for fuel economy of heavy-duty trucks become severer year by year, and many efforts, such as reduction of air drag of vehicle, optimization of transmission and engine performance, improvement of engine combustion, etc., have been taken to meet these demands. However, requirements for the reduction of fuel consumption are expected to become even more critical, so the authors have studied a new design concept for heavy duty truck diesel engines to satisfy these requirements. The basic idea for getting a fuel-economic engine is to make the engine as small as possible and also to apply higher boost turbocharging for obtaining a sufficiently high output. However, measures to improve the undesirable problems which conventional turbocharged engines possess, such as lack of acceleration response and low-speed torque, increase of thermal and mechanical loads, shortage of engine brake torque, poor cold start ability, etc., should also be pursued. A chassis-mounted air-to-air intercooler, inertia-charged air induction system, highly backward-curved impeller of turbocharger, electronically controlled fuel injection timing device, etc., have been applied. And a new design technique as well as new material and construction have also been applied. This engine was installed to a long-haul truck with a gross weight of around 20,000 kg (44,000 lbs) and got better fuel mileage, as expected.

scholarly journals An Integrated Investigation of Atmospheric Gaseous Elemental Mercury Transport and Dispersion Around a Chlor-Alkali Plant in the Ossola Valley (Italian Central Alps)

Toxics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 172
Author(s):  
Laura Fantozzi ◽  
Nicoletta Guerrieri ◽  
Giovanni Manca ◽  
Arianna Orrù ◽  
Laura Marziali
Keyword(s):  
Elemental Mercury ◽  
Background Concentration ◽  
Dispersion Pattern ◽  
Central Alps ◽  
Gaseous Elemental Mercury ◽  
Mercury Transport ◽  
Close Proximity ◽  
Potential Impact ◽  
Hg Accumulation

We present the first assessment of atmospheric pollution by mercury (Hg) in an industrialized area located in the Ossola Valley (Italian Central Alps), in close proximity to the Toce River. The study area suffers from a level of Hg contamination due to a Hg cell chlor-alkali plant operating from 1915 to the end of 2017. We measured gaseous elemental Hg (GEM) levels by means of a portable Hg analyzer during car surveys between autumn 2018 and summer 2020. Moreover, we assessed the long-term dispersion pattern of atmospheric Hg by analyzing the total Hg concentration in samples of lichens collected in the Ossola Valley. High values of GEM concentrations (1112 ng m−3) up to three orders of magnitude higher than the typical terrestrial background concentration in the northern hemisphere were measured in the proximity of the chlor-alkali plant. Hg concentrations in lichens ranged from 142 ng g−1 at sampling sites located north of the chlor-alkali plant to 624 ng g−1 in lichens collected south of the chlor-alkali plant. A north-south gradient of Hg accumulation in lichens along the Ossola Valley channel was observed, highlighting that the area located south of the chlor-alkali plant is more exposed to the dispersion of Hg emitted into the atmosphere from the industrial site. Long-term studies on Hg emission and dispersion in the Ossola Valley are needed to better assess potential impact on ecosystems and human health.

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