News Briefs: Improving the fuel economy of new vehicles would reduce the annual fuel consumption and greenhouse gas emissions of cars and light trucks between 6 and 37% over a 15- to 18-year period,

2000 ◽  
Vol 34 (21) ◽  
pp. 459A-459A
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Fuel Consumption ◽  
Fuel Economy ◽  
Gas Emissions ◽  
Light Trucks

scholarly journals Evaluation of vehicle lightweighting to reduce greenhouse gas emissions with focus on magnesium substitution

2018 ◽  
Vol 16 (6) ◽  
pp. 869-888 ◽  
Author(s):  
Siddharth Kulkarni ◽  
David John Edwards ◽  
Erika Anneli Parn ◽  
Craig Chapman ◽  
Clinton Ohis Aigbavboa ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Fuel Economy ◽  
Internal Combustion Engines ◽  
Mechanical Performance ◽  
Material Design ◽  
Torsional Stiffness ◽  
Gas Emissions ◽  
Content Type

Purpose Vehicle weight reduction represents a viable means of meeting tougher regulatory requirements designed to reduce fuel consumption and control greenhouse gas emissions. This paper aims to present an empirical and comparative analysis of lightweight magnesium materials used to replace conventional steel in passenger vehicles with internal combustion engines. The very low density of magnesium makes it a viable material for lightweighting given that it is lighter than aluminium by one-third and steel by three-fourth. Design/methodology/approach A structural evaluation case study of the “open access” Wikispeed car was undertaken. This included an assessment of material design characteristics such as bending stiffness, torsional stiffness and crashworthiness to evaluate whether magnesium provides a better alternative to the current usage of aluminium in the automotive industry. Findings The Wikispeed car had an issue with the rocker beam width/thickness (b/t) ratio, indicating failure in yield instead of buckling. By changing the specified material, Aluminium Alloy 6061-T651 to Magnesium EN-MB10020, it was revealed that vehicle mass could be reduced by an estimated 110 kg, in turn improving the fuel economy by 10 per cent. This, however, would require mechanical performance compromise unless the current design is modified. Originality/value This is the first time that a comparative analysis of material substitution has been made on the Wikispeed car. The results of such work will assist in the lowering of harmful greenhouse gas emissions and simultaneously augment fuel economy.

The Macroeconomic Effects of 2017 Through 2025 Federal Fuel Economy and Greenhouse Gas Emissions Standards

2019 ◽  
Vol 38 (3) ◽  
pp. 732-763 ◽  
Author(s):  
Sanya Carley ◽  
Nikolaos Zirogiannis ◽  
Denvil Duncan ◽  
Saba Siddiki ◽  
John D. Graham
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Fuel Economy ◽  
Gas Emissions ◽  
Macroeconomic Effects

Greenhouse gas contribution of municipal solid waste collection: A case study in the city of Istanbul, Turkey

2017 ◽  
Vol 36 (2) ◽  
pp. 131-139 ◽  
Author(s):  
Nafiz E Korkut ◽  
Cevat Yaman ◽  
Yusuf Küçükağa ◽  
Megan K Jaunich ◽  
İbrahim Demir
Keyword(s):  
Global Warming ◽  
Municipal Solid Waste ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Solid Waste ◽  
Fuel Consumption ◽  
Waste Collection ◽  
Gas Emissions ◽  
Solid Waste Collection ◽  
Transfer Stations

This article estimates greenhouse gas emissions and global warming factors resulting from collection of municipal solid waste to the transfer stations or landfills in Istanbul for the year of 2015. The aim of this study is to quantify and compare diesel fuel consumption and estimate the greenhouse gas emissions and global warming factors associated with municipal solid waste collection of the 39 districts of Istanbul. Each district’s greenhouse gas emissions resulting from the provision and combustion of diesel fuel was estimated by considering the number of collection trips and distances to municipal solid waste facilities. The estimated greenhouse gases and global warming factors for the districts varied from 61.2 to 2759.1 t CO2-eq and from 4.60 to 15.20 kg CO2-eq t-1, respectively. The total greenhouse gas emission was estimated as 46.4E3 t CO2-eq. Lastly, the collection data from the districts was used to parameterise a collection model that can be used to estimate fuel consumption associated with municipal solid waste collection. This mechanistic model can then be used to predict future fuel consumption and greenhouse gas emissions associated with municipal solid waste collection based on projected population, waste generation, and distance to transfer stations and landfills. The greenhouse gas emissions can be reduced by decreasing the trip numbers and trip distances, building more transfer stations around the city, and making sure that the collection trucks are full in each trip.

Does the American Public Support Legislation to Reduce Greenhouse Gas Emissions?

Daedalus ◽  
2013 ◽  
Vol 142 (1) ◽  
pp. 26-39 ◽  
Author(s):  
Jon A. Krosnick ◽  
Bo MacInnis
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Fuel Economy ◽  
Fossil Fuels ◽  
Public Support ◽  
Policy Support ◽  
Gas Emissions ◽  
National Surveys ◽  
Future Warming ◽  
Energy Efficiency Standards

Despite efforts by some congressional legislators to pass laws to limit greenhouse gas emissions and reduce the use of fossil fuels, no such laws have yet been adopted. Is this failure to pass new laws attributable to a lack of public desire for such legislation? Data from national surveys support two answers to this question. First, large majorities of Americans have endorsed a variety of policies designed to reduce greenhouse gas emissions; second, policy support has been consistent across years and across scopes and types of policies. Popular policies include fuel economy and energy-efficiency standards, mandated use of renewable sources, and limitations on emissions by utilities and by businesses more generally. Support for policies has been price sensitive, and the American public appears to have been willing to pay enough money for these purposes to cover their costs. Consistent with these policy endorsements, surveys show that large majorities of Americans believe that global warming has been happening, that it is attributable to human activity, and that future warming will be a threat if unaddressed. Not surprisingly, these beliefs appear to have been important drivers of public support for policies designed to reform energy generation and use. Thus, it seems inappropriate to attribute lack of legislation to lack of public support in these arenas.

Impact of Driving Cycles on Greenhouse Gas Emissions and Fuel Economy for SI Car Real World Driving

2008 ◽  
Vol 1 (1) ◽  
pp. 1320-1333 ◽  
Author(s):  
Hu Li ◽  
Gordon E Andrews ◽  
Dimitrios Savvidis ◽  
Basil Daham ◽  
Karl Ropkins ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Fuel Economy ◽  
Real World ◽  
Gas Emissions ◽  
Driving Cycles

Investigation and modelling of greenhouse gas emissions resulting from waste collection and transport activities

2019 ◽  
Vol 37 (12) ◽  
pp. 1282-1290 ◽  
Author(s):  
Cevat Yaman ◽  
Ismail Anil ◽  
Megan K Jaunich ◽  
Nawaf I Blaisi ◽  
Omar Alagha ◽  
...  
Keyword(s):  
Global Warming ◽  
Municipal Solid Waste ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Solid Waste ◽  
Fuel Consumption ◽  
Environmental Protection Agency ◽  
Municipal Solid Waste Management ◽  
Waste Collection ◽  
Gas Emissions

Greenhouse gas emissions resulting from municipal solid waste management activities and the associated climate change impacts are getting great attention worldwide. This study investigates greenhouse gas emissions and their distribution during waste collection and transport activities in the Dammam region of Saudi Arabia. Greenhouse gas emissions and associated global warming factors were estimated based on diesel fuel consumption during waste collection and transport activities. Then, waste collection and transport data were used to parameterise a mechanistic collection model that can be used to estimate and predict future fuel consumption and greenhouse gas emissions. For the collection and transport of municipal waste in the study area, the average associated total greenhouse gas emissions were about 24,935 tCO2-eq. Global warming factors for three provinces were estimated as 25.23 kg CO2-eq t-1, 25.04 kg CO2-eq t-1, and 37.15 kg CO2-eq t-1, respectively. Lastly, the American Meteorological Society/Environmental Protection Agency Regulatory Model (AERMOD) modelling system was used to estimate the atmospheric dispersion of greenhouse gas emissions. Model results revealed that the maximum daily greenhouse gas concentrations ranged between 0.174 and 97.3 mg m-3, while annual average greenhouse gas concentrations were found to be between 0.012 and 27.7 mg m-3 within the study domain. The highest greenhouse gas concentrations were observed for the regions involving the municipal solid waste collection routes owing to their higher source emission rates.

Automobile Fuel Economy and Greenhouse Gas Emissions Standards

2017 ◽  
Vol 1 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Grady Killeen ◽  
Arik Levinson
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Electric Vehicles ◽  
Fuel Economy ◽  
Environmental Benefits ◽  
Costs And Benefits ◽  
Gas Emissions ◽  
Automotive Fuel ◽  
History Of

In March 2017, EPA Administrator Scott Pruitt reopened an evaluation of the automotive fuel economy and greenhouse gas emissions standards that the EPA had finalized in January. This case provides a history of the rules, along with assessments of their costs and benefits. It addresses numerous debates, including the environmental benefits of the rules, the role of electric vehicles, whether the standards should be less strict for larger cars, and tradeoffs between fuel economy and safety.

Synergistic engine-fuel technologies for light-duty vehicles: Fuel economy and Greenhouse Gas Emissions

2017 ◽  
Vol 208 ◽  
pp. 1538-1561 ◽  
Author(s):  
Kai Morganti ◽  
Marwan Al-Abdullah ◽  
Abdullah Alzubail ◽  
Gautam Kalghatgi ◽  
Yoann Viollet ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Fuel Economy ◽  
Engine Fuel ◽  
Gas Emissions ◽  
Light Duty ◽  
Light Duty Vehicles
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