scholarly journals Alternative Fuel News: Official Publication of the U.S. Department of Energy's Clean Cities Network and the Alternative Fuels Data Center; Vol. 2, No. 2

1998 ◽  
Author(s):  
Keyword(s):  
Data Center ◽  
Alternative Fuels ◽  
Alternative Fuel ◽  
Official Publication ◽  
The U.S

scholarly journals Private Sector Engagement in the Self-Governance of Urban Sustainable Infrastructure: A Study on Alternative Fueling Infrastructure in the United States

2021 ◽  
Vol 13 (22) ◽  
pp. 12435
Author(s):  
Heewon Lee
Keyword(s):  
Private Sector ◽  
Alternative Fuels ◽  
Financial Incentive ◽  
Local Level ◽  
Collaborative Governance ◽  
Alternative Fuel ◽  
The United States ◽  
Alternative Fuel Vehicles ◽  
Incentive Programs ◽  
The U.S

Greenhouse gas emission reduction and decarbonization goals drive citizens’ interests in alternative fuel vehicles and have created fast-growing demands on alternative fuels. While governments are promoting the transition to alternative fuel vehicles, the lack of refueling and recharging infrastructure for the vehicles is a key barrier to the adoption. At the same time, the public sector cannot solely provide needed alternative fueling infrastructure due to limited financial resources. Consequently, governments in the U.S. have been working on facilitating the private sector’s investment in alternative fueling infrastructure. The most common approach was financial incentive programs and policies, but the U.S. also promotes self-organized collaborative governance of alternative fuels across sectors at the local level. This paper asks whether these two approaches stimulate the private sector’s engagement in providing alternative fueling infrastructure. This study uses the case of the Clean Cities program that targets the reduction in petroleum usage, adoption of alternative fuels and creation of self-governance at the local level. Local private businesses, local government agencies and non-profit organizations voluntarily participate in the local transition to alternative fuels. Therefore, this governance aims at facilitating more sustainable actions and business choices in the private sector. This paper tests the hypotheses of whether the local self-governance of Clean Cities increases privately-owned alternative fueling infrastructure using panel fixed-effects Poisson regression models. Based on the data of counties in 12 states from 2004 to 2015, the results of empirical analysis suggest that both self-governance and financial incentive programs are effective in increasing the engagement of private actors in providing alternative fueling infrastructure.

Marine Alternative Fuel Performance Testing

2012 ◽  
Author(s):  
Sujit Ghosh ◽  
Tom Risley ◽  
David Sobolewski ◽  
William Welch ◽  
Sherry Williams
Keyword(s):  
Electric Propulsion ◽  
Alternative Fuels ◽  
Performance Testing ◽  
Alternative Fuel ◽  
Exhaust Emission ◽  
Diesel Generator ◽  
Emission Testing ◽  
The U.S ◽  
Test Fuel ◽  
Emissions Testing

As part of the U.S. Maritime Administration (MARAD) marine application of alternative fuel initiative, the U.S. Navy provided neat hydrotreated renewable diesel (HRD), derived from the hydroprocessing of algal oils, for operational and exhaust emission testing onboard the T/S STATE OF MICHIGAN. This vessel has diesel-electric propulsion with four caterpillar D-398 compression ignition engines; one of these ship service diesel engines was selected as the test engine. The diesel generator sets power both the propulsion motors propelling the ship and provide the electrical power for the hotel loads of the ship. Ultra-low sulfur diesel (ULSD) was blended with the neat HRD fuel in a 50/50-by-volume blend and tested for over 440 hours on the vessel. Exhaust emissions testing was performed while underway on Lake Michigan using the baseline ULSD assessed earlier. A similar profile was run using the blended test fuel. Emission testing was conducted using the ISO 8178 (D2) test cycle. When emissions testing was completed a series of underway and pierside test runs were conducted to accumulate the remaining engine hours, After all testing, the engine conditions were assessed again using a combination of visual inspection and oil analysis. The remainder of the test fuel will be used to conduct a long-term stability test. The setup, test, and results of this testing, currently underway, are reported here with a discussion of MARAD’s alternative fuels test initiative.

scholarly journals Ethanol/Gasoline Blends as Alternative Fuel in Last Generation Spark-Ignition Engines: A Review on CO and HC Engine Out Emissions

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 4034
Author(s):  
Paolo Iodice ◽  
Massimo Cardone
Keyword(s):  
Physicochemical Properties ◽  
Alternative Fuels ◽  
Experimental Studies ◽  
Alternative Fuel ◽  
Exhaust Emissions ◽  
Spark Ignition ◽  
Operating Conditions ◽  
Spark Ignition Engine ◽  
Spark Ignition Engines ◽  
The Impact

Among the alternative fuels existing for spark-ignition engines, ethanol is considered worldwide as an important renewable fuel when mixed with pure gasoline because of its favorable physicochemical properties. An in-depth and updated investigation on the issue of CO and HC engine out emissions related to use of ethanol/gasoline fuels in spark-ignition engines is therefore necessary. Starting from our experimental studies on engine out emissions of a last generation spark-ignition engine fueled with ethanol/gasoline fuels, the aim of this new investigation is to offer a complete literature review on the present state of ethanol combustion in last generation spark-ignition engines under real working conditions to clarify the possible change in CO and HC emissions. In the first section of this paper, a comparison between physicochemical properties of ethanol and gasoline is examined to assess the practicability of using ethanol as an alternative fuel for spark-ignition engines and to investigate the effect on engine out emissions and combustion efficiency. In the next section, this article focuses on the impact of ethanol/gasoline fuels on CO and HC formation. Many studies related to combustion characteristics and exhaust emissions in spark-ignition engines fueled with ethanol/gasoline fuels are thus discussed in detail. Most of these experimental investigations conclude that the addition of ethanol with gasoline fuel mixtures can really decrease the CO and HC exhaust emissions of last generation spark-ignition engines in several operating conditions.

scholarly journals Emission estimates and air quality impacts from the use of alternative fuels by the Titan cement factory in Thessaloniki

2013 ◽  
Vol 14 (2) ◽  
pp. 218-224
Keyword(s):  
Alternative Fuels ◽  
Fossil Fuels ◽  
Alternative Fuel ◽  
Cement Industry ◽  
Partial Replacement ◽  
Limit Values ◽  
Cement Factory ◽  
Pollution Levels ◽  
Fuel Substitution ◽  
The Impact

Cement production is an energy-intensive process. Utilisation of fossil fuels is common practice in the cement industry around the world. Alternative fuel substitution rates increase every year. More specifically, 18 % of the fuel used by the European cement industry in 2006 consists of alternative fuels. This study aims to investigate the prospects for the partial replacement of conventional fossil fuels currently used in the TITAN cement factory in Thessaloniki, Greece, with alternative fuels, focusing on the impact of alternative fuel use on the emissions of air pollutants from co-incineration operations. Air emissions were estimated for both the conventional fuel and mixtures of conventional fuel with alternative fuels, based on emission factors found in the literature but also using the measurements conducted by TITAN in 2010. Emission estimates indicate that legislative limit values for all pollutants are not exceeded. Based on the emission estimates and measurements in the flue gas, the dispersion of the plume around the factory has been described with an appropriate numerical simulation model. Results suggest that the factory’s contribution to the air pollution levels in the surrounding area is very low for most regulated pollutants.

Comparative assessment of engine vibration, combustion, performance and emission characteristics between single and twin-cylinder diesel engines in unifuel and dual-fuel mode

2021 ◽  
pp. 1-39
Author(s):  
Akash Chandrabhan Chandekar ◽  
Sushmita Deka ◽  
Biplab K. Debnath ◽  
Ramesh Babu Pallekonda
Keyword(s):  
Natural Gas ◽  
Alternative Fuels ◽  
Load Condition ◽  
Alternative Fuel ◽  
Dual Fuel ◽  
Cylinder Pressure ◽  
Compressed Natural Gas ◽  
Single Cylinder ◽  
Engine Vibration ◽  
Single Cylinder Engine

Abstract The persistent efforts among the researchers are being done to reduce emissions by the exploration of different alternative fuels. The application of alternative fuel is also found to influence engine vibration. The present study explores the potential connection between the change of the engine operating parameters and the engine vibration pattern. The objective is to analyse the effect of alternative fuel on engine vibration and performance. The experiments are performed on two different engines of single cylinder and twin-cylinder variants at the load range of 0 to 34Nm, with steps of 6.8Nm and at the constant speed of 1500rpm. The single cylinder engine, fuelled with only diesel mode, is tested at two compression ratios of 16.5 and 17.5. While, the twin-cylinder engine with a constant compression ratio of 16.5, is tested at both diesel unifuel and diesel-compressed natural gas dual-fuel modes. Further, in dual-fuel mode, tests are conducted with compressed natural gas substitutions of 40%, 60% and 80% for given loads and speed. The engine vibration signatures are measured in terms of root mean square acceleration, representing the amplitude of vibration. The combustion parameters considered are cylinder pressure, rate of pressure rise, heat release rate and ignition delay. At higher loads, the vibration amplitude increases along with the cylinder pressure. The maximum peak cylinder pressure of 95bar is found in the case of the single cylinder engine at the highest load condition that also produced a peak vibration of 3219m/s2.

scholarly journals Can the U.S. ethanol industry compete in the alternative fuels market?

2007 ◽  
Vol 37 (1) ◽  
pp. 105-112 ◽  
Author(s):  
Zibin Zhang ◽  
Dmitry Vedenov ◽  
Michael Wetzstein
Keyword(s):  
Alternative Fuels ◽  
The U.S

Evaluation of Possible Use of Foliage as a Fuel for Small Combustion Equipment

2014 ◽  
Vol 899 ◽  
pp. 218-221 ◽  
Author(s):  
Lubomír Martiník ◽  
Vendula Drastichová ◽  
Jiří Horák ◽  
Zuzana Jankovská ◽  
Petr Kubesa
Keyword(s):  
Power Plants ◽  
Alternative Fuels ◽  
Alternative Fuel ◽  
Biomass Fuels ◽  
High Demand ◽  
Fallen Leaves ◽  
Fuel Source

Biomass is a common fuel for small combustion equipment and also for heating plantsand power plants. Combustion of firewood, wood briquettes and pellets dominates in households.Thanks to high demand for biomass fuels its prices grow and it is necessary to look for cheaperalternatives. One of the alternative fuels can be foliage. In cities there is in autumn usually a plentyof fallen leaves. These leaves - foliage has to be composted or otherwise disposed of. Instead oftreating foliage as a waste it can be used as an alternative fuel. To serve as a viable fuel source thefoliage has to be processed into briquetts.This article deals with possibilities of producing briquettes from foliage and evaluation of theircombustion quality in small combustion equipment.

Fuel Use and CO2 Emissions Under Uncertainty From Light-Duty Vehicles in the U.S. to 2050

2011 ◽  
Author(s):  
Parisa Bastani ◽  
John B. Heywood ◽  
Chris Hope
Keyword(s):  
Co2 Emissions ◽  
Alternative Fuels ◽  
Fuel Use ◽  
Policy Makers ◽  
Light Duty ◽  
Co2 Equivalent ◽  
The Future ◽  
Light Duty Vehicles ◽  
The Impact ◽  
The U.S

On-road transportation contributes 22% of the total CO2 emissions and more than 44% of oil consumption in the U.S. Technological advancements and use of alternative fuels are often suggested as ways to reduce these emissions. However, many parameters and relationships that determine the future characteristics of the light-duty vehicle fleet and how they change over time are inherently uncertain. Policy makers need to make decisions today given these uncertainties, to shape the future of light-duty vehicles. Decision makers thus need to know the impact of uncertainties on the outcome of their decisions and the associated risks. This paper explores a carefully constructed detailed pathway that results in a significant reduction in fuel use and GHG emissions in 2050. Inputs are assigned realistic uncertainty bounds, and the impact of uncertainty on this pathway is analyzed. A novel probabilistic fleet model is used here to quantify the uncertainties within advanced vehicle technology development, and life-cycle emissions of alternative fuels and renewable sources. Based on the results from this study, the expected fuel use is about 500 and 350 billion litres gasoline equivalent, with a standard deviation of about 40 and 80 billion litres in years 2030 and 2050 respectively. The expected CO2 emissions are about 1,360 and 840 Mt CO2 equivalent with a spread of about 130 and 260 Mt CO2 equivalent in 2030 and 2050 respectively. Major contributing factors in determining the future fuel consumption and emissions are also identified and include vehicle scrappage rate, annual growth of vehicle kilometres travelled in the near term, total vehicle sales, fuel consumption of naturally-aspirated engines, and percentage of gasoline displaced by cellulosic ethanol. This type of analysis allows policy makers to better understand the impact of their decisions and proposed policies given the technological and market uncertainties that we face today.

scholarly journals PEMAKAIAN BAHAN BAKAR GAS MENJADI ALTERNATIF BAGI KENDARAAN BERMOTOR BERBAHAN BAKAR PREMIUM

2012 ◽  
Vol 17 (1) ◽  
pp. 18
Author(s):  
Indartono Indartono
Keyword(s):  
Energy Efficiency ◽  
Alternative Fuels ◽  
Motor Vehicle ◽  
Alternative Fuel ◽  
Fuel Oil ◽  
Motor Vehicles ◽  
Exhaust Gas ◽  
Fuel Gas ◽  
Potential Source ◽  
Selection Of

Indartono, in paper use of alternative fuel gas for a motor vehicle fuel oil explain that in many ways energy efficiency can also be more than just preservation. Energy efficiency is an attempt to reduce the use of petroleum materials and the selection of alternative fuels. Improved energy efficiency is also an environmental demands, because it can reduce air pollution, acid rain control the incidence and protect the earth from global warming, which may occur due to buildup of carbon dioxide in the atmosphere. One of the alternative fuel is CNG. In motor vehicles, CNG usage advantages include lower price, the exhaust gas is cleaner burning results and the potential source is still very large. Keywords: energy efficiency, fuel, CNG

Performance and emission characteristics of turbocharged diesel engine fueled with palm biodiesel blends

2018 ◽  
Vol 7 (3) ◽  
pp. 1040
Author(s):  
Byungmo Yang ◽  
M A. Kalam ◽  
Haengmuk Cho
Keyword(s):  
Alternative Fuels ◽  
Fossil Fuels ◽  
Engine Performance ◽  
Alternative Fuel ◽  
Performance And Emission ◽  
Crude Oil Prices ◽  
Gas Measurement ◽  
Consumption Rates ◽  
Hc Emissions ◽  
Main Component

The exhaustion of fossil fuels and sharp rise in crude oil prices has led to the development of various alternative fuels. Alternative fuels are a necessity to meet rising energy consumption rates and to ensure eco-friendly growth. Alternative fuels that can be regenerated, are sustainable and have clean burning capacity to help promote an eco-friendly development. Whereas there have been various ideas and technologies relating to biodiesel as an alternative fuel, these tend to be restricted to the distant future insofar as compression-ignition engines are concerned. Biodiesel, produced by reacting triglycerides which are the main component of animal or plant-based fatty acids with methanol, is known to be an eco-friendly alternative fuel that can take the place of conventional petroleum diesel. In the present study, biodiesel (palm oil) was mixed at a certain ratio with commercially sold diesel, then introduced into a TCDI engine which was run at low load conditions for engine performance and exhaust gas measurement. Both engine output and torque were reduced, and fuel consumption increased to make up for the reduction in output. There were slight reductions in NOx and CO2 emissions, but changes in CO and HC emissions were negligible.  

Sign in / Sign up

Export Citation Format

Share Document