National Library of Energy BETA

Sample records for diesel fuel blending

  1. A Multicomponent Blend as a Diesel Fuel Surrogate for Compression...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A Multicomponent Blend as a Diesel Fuel Surrogate for Compression Ignition Engine Applications Title A Multicomponent Blend as a Diesel Fuel Surrogate for Compression Ignition...

  2. Volatility of Gasoline and Diesel Fuel Blends for Supercritical Fuel

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Injection | Department of Energy Gasoline and Diesel Fuel Blends for Supercritical Fuel Injection Volatility of Gasoline and Diesel Fuel Blends for Supercritical Fuel Injection Supercritical dieseline could be used in diesel engines having efficient fuel systems and combustion chamber designs that decrease fuel consumption and mitigate emissions. p-02_anitescu.pdf (339.45 KB) More Documents & Publications Preparation, Injection and Combustion of Supercritical Fluids Evaluation of

  3. IMPACT OF DME-DIESEL FUEL BLEND PROPERTIES ON DIESEL FUEL INJECTION SYSTEMS

    SciTech Connect (OSTI)

    Elana M. Chapman; Andre L. Boehman; Kimberly Wain; Wallis Lloyd; Joseph M. Perez; Donald Stiver; Joseph Conway

    2002-07-01

    The objectives of this research program are to develop information on lubricity and viscosity improvers and their impact on the wear mechanisms in fuel injectors operating on blends of dimethyl ether (DME) and diesel fuel. This project complements another ongoing project titled ''Development of a Dimethyl Ether (DME)-Fueled Shuttle Bus Demonstration Project''. The objectives of that research and demonstration program are to convert a campus shuttle bus to operation on dimethyl ether, a potential ultra-clean alternative diesel fuel. To accomplish this objective, this project includes laboratory evaluation of a fuel conversion strategy, as well as, field demonstration of the DME-fueled shuttle bus. Since DME is a fuel with no lubricity (i.e., it does not possess the lubricating quality of diesel fuel), conventional fuel delivery and fuel injection systems are not compatible with dimethyl ether. Therefore, to operate a diesel engine on DME one must develop a fuel-tolerant injection system, or find a way to provide the necessary lubricity to the DME. In the shuttle bus project, they have chosen the latter strategy in order to achieve the objective with minimal need to modify the engine. The strategy is to blend DME with diesel fuel, to obtain the necessary lubricity to protect the fuel injection system and to achieve low emissions. In this project, they have sought to develop methods for extending the permissible DME content in the DME-diesel blends without experiencing rapid injector failure due to wear. To date, the activities have covered two areas: development of a high-pressure lubricity test apparatus for studies of lubricity and viscosity improvers and development of an injector durability stand for evaluation of wear rates in fuel injectors. This report provides summaries of the progress toward completion of both experimental systems and a summary of the plan for completion of the project objectives.

  4. IMPACT OF DME-DIESEL FUEL BLEND PROPERTIES ON DIESEL FUEL INJECTION SYSTEMS

    SciTech Connect (OSTI)

    Elana M. Chapman; Andre Boehman; Kimberly Wain; Wallis Lloyd; Joseph M. Perez; Donald Stiver; Joseph Conway

    2004-04-01

    The objectives of this research program are to develop information on lubricity and viscosity improvers and their impact on the wear mechanisms in fuel injectors operating on blends of dimethyl ether (DME) and diesel fuel. Since DME is a fuel with no lubricity (i.e., it does not possess the lubricating quality of diesel fuel), conventional fuel delivery and fuel injection systems are not compatible with dimethyl ether. Therefore, to operate a diesel engine on DME one must develop a fuel-tolerant injection system, or find a way to provide the necessary lubricity to the DME. In the shuttle bus project, we have chosen the latter strategy in order to achieve the objective with minimal need to modify the engine. Our strategy is to blend DME with diesel fuel, to obtain the necessary lubricity to protect the fuel injection system and to achieve low emissions. In this project, we have sought to develop methods for extending the permissible DME content in the DME-diesel blends without experiencing rapid injector failure due to wear. Our activities have covered three areas: examination of the impact of lubricity additives on the viscosity of DME, development of a high-pressure lubricity test apparatus for studies of lubricity and viscosity improvers and development of an injector durability stand for evaluation of wear rates in fuel injectors. The first two of these areas have resulted in valuable information about the limitations of lubricity and viscosity additives that are presently available in terms of their impact on the viscosity of DME and on wear rates on injector hardware. The third area, that of development of an injector durability test stand, has not resulted in a functioning experiment. Some information is provided in this report to identify the remaining tasks that need to be performed to make the injector stand operational. The key observations from the work are that when blended at 25 wt.% in either diesel fuel or Biodiesel fuel, DME requires more than 5 wt

  5. IMPACT OF DME-DIESEL FUEL BLEND PROPERTIES ON DIESEL FUEL INJECTION SYSTEMS

    SciTech Connect (OSTI)

    Elana M. Chapman; Andre Boehman; Kimberly Wain; Wallis Lloyd; Joseph M. Perez; Donald Stiver; Joseph Conway

    2003-06-01

    The objectives of this research program are to develop information on lubricity and viscosity improvers and their impact on the wear mechanisms in fuel injectors operating on blends of dimethyl ether (DME) and diesel fuel. Since DME is a fuel with no lubricity (i.e., it does not possess the lubricating quality of diesel fuel), conventional fuel delivery and fuel injection systems are not compatible with dimethyl ether. Therefore, to operate a diesel engine on DME one must develop a fuel-tolerant injection system, or find a way to provide the necessary lubricity to the DME. In the shuttle bus project, we have chosen the latter strategy in order to achieve the objective with minimal need to modify the engine. Our strategy is to blend DME with diesel fuel, to obtain the necessary lubricity to protect the fuel injection system and to achieve low emissions. In this project, we have sought to develop methods for extending the permissible DME content in the DME-diesel blends without experiencing rapid injector failure due to wear. To date, our activities have covered three areas: examination of the impact of lubricity additives on the viscosity of DME, development of a high-pressure lubricity test apparatus for studies of lubricity and viscosity improvers and development of an injector durability stand for evaluation of wear rates in fuel injectors. This report provides summaries of the progress toward evaluation of the viscosity impacts of lubricity additives, completion of both experimental systems and a summary of the plan for completion of the project objectives.

  6. Impacts of Biodiesel Fuel Blends Oil Dilution on Light-Duty Diesel Engine Operation

    SciTech Connect (OSTI)

    Thornton, M. J.; Alleman, T. L.; Luecke, J.; McCormick, R. L.

    2009-08-01

    Assesses oil dilution impacts on a diesel engine operating with a diesel particle filter, NOx storage, a selective catalytic reduction emission control system, and a soy-based 20% biodiesel fuel blend.

  7. Fuel and Fuel Additive Registration Testing of Ethanol-Diesel Blend for O2Diesel, Inc.

    SciTech Connect (OSTI)

    Fanick, E. R.

    2004-02-01

    O2 Diesel Inc. (formerly AAE Technologies Inc.) tested a heavy duty engine with O2Diesel (diesel fuel with 7.7% ethanol and additives) for regulated emissions and speciation of vapor-phase and semi-volatile hydrocarbon compounds. This testing was performed in support of EPA requirements for registering designated fuels and fuel additives as stipulated by sections 211(b) and 211(e) of the Clean Air Act.

  8. Emission Characteristics of a Diesel Engine Operating with In-Cylinder Gasoline and Diesel Fuel Blending

    SciTech Connect (OSTI)

    Prikhodko, Vitaly Y; Curran, Scott; Barone, Teresa L; Lewis Sr, Samuel Arthur; Storey, John Morse; Cho, Kukwon; Wagner, Robert M; Parks, II, James E

    2010-01-01

    Advanced combustion regimes such as homogeneous charge compression ignition (HCCI) and premixed charge compression ignition (PCCI) offer benefits of reduced nitrogen oxides (NOx) and particulate matter (PM) emissions. However, these combustion strategies often generate higher carbon monoxide (CO) and hydrocarbon (HC) emissions. In addition, aldehydes and ketone emissions can increase in these modes. In this study, the engine-out emissions of a compression-ignition engine operating in a fuel reactivity- controlled PCCI combustion mode using in-cylinder blending of gasoline and diesel fuel have been characterized. The work was performed on a 1.9-liter, 4-cylinder diesel engine outfitted with a port fuel injection system to deliver gasoline to the engine. The engine was operated at 2300 rpm and 4.2 bar brake mean effective pressure (BMEP) with the ratio of gasoline to diesel fuel that gave the highest engine efficiency and lowest emissions. Engine-out emissions for aldehydes, ketones and PM were compared with emissions from conventional diesel combustion. Sampling and analysis was carried out following micro-tunnel dilution of the exhaust. Particle geometric mean diameter, number-size distribution, and total number concentration were measured by a scanning mobility particle sizer (SMPS). For the particle mass measurements, samples were collected on Teflon-coated quartz-fiber filters and analyzed gravimetrically. Gaseous aldehydes and ketones were sampled using dinitrophenylhydrazine-coated solid phase extraction cartridges and the extracts were analyzed by liquid chromatography/mass spectrometry (LC/MS). In addition, emissions after a diesel oxidation catalyst (DOC) were also measured to investigate the destruction of CO, HC and formaldehydes by the catalyst.

  9. Methylal and Methylal-Diesel Blended Fuels from Use In Compression-Ignition Engines

    SciTech Connect (OSTI)

    Keith D. Vertin; James M. Ohi; David W. Naegeli; Kenneth H. Childress; Gary P. Hagen; Chris I. McCarthy; Adelbert S. Cheng; Robert W. Dibble

    1999-05-05

    Gas-to-liquids catalytic conversion technologies show promise for liberating stranded natural gas reserves and for achieving energy diversity worldwide. Some gas-to-liquids products are used as transportation fuels and as blendstocks for upgrading crude derived fuels. Methylal (CH{sub 3}-O-CH{sub 2}-O-CH{sub 3}) also known as dimethoxymethane or DMM, is a gas-to-liquid chemical that has been evaluated for use as a diesel fuel component. Methylal contains 42% oxygen by weight and is soluble in diesel fuel. The physical and chemical properties of neat methylal and for blends of methylal in conventional diesel fuel are presented. Methylal was found to be more volatile than diesel fuel, and special precautions for distribution and fuel tank storage are discussed. Steady state engine tests were also performed using an unmodified Cummins 85.9 turbocharged diesel engine to examine the effect of methylal blend concentration on performance and emissions. Substantial reductions of particulate matter emissions h ave been demonstrated 3r IO to 30% blends of methylal in diesel fuel. This research indicates that methylal may be an effective blendstock for diesel fuel provided design changes are made to vehicle fuel handling systems.

  10. A NMR-Based Carbon-Type Analysis of Diesel Fuel Blends From Various Sources

    SciTech Connect (OSTI)

    Bays, J. Timothy; King, David L.

    2013-05-10

    In collaboration with participants of the Coordinating Research Council (CRC) Advanced Vehicle/Fuels/Lubricants (AVFL) Committee, and project AVFL-19, the characteristics of fuels from advanced and renewable sources were compared to commercial diesel fuels. The main objective of this study was to highlight similarities and differences among the fuel types, i.e. ULSD, renewables, and alternative fuels, and among fuels within the different fuel types. This report summarizes the carbon-type analysis from 1H and 13C{1H} nuclear magnetic resonance spectroscopy (NMR) of 14 diesel fuel samples. The diesel fuel samples come from diverse sources and include four commercial ultra-low sulfur diesel fuels (ULSD), one gas-to-liquid diesel fuel (GTL), six renewable diesel fuels (RD), two shale oil-derived diesel fuels, and one oil sands-derived diesel fuel. Overall, the fuels examined fall into two groups. The two shale oil-derived samples and the oil-sand-derived sample closely resemble the four commercial ultra-low sulfur diesels, with SO1 and SO2 most closely matched with ULSD1, ULSD2, and ULSD4, and OS1 most closely matched with ULSD3. As might be expected, the renewable diesel fuels, with the exception of RD3, do not resemble the ULSD fuels because of their very low aromatic content, but more closely resemble the gas-to-liquid sample (GTL) in this respect. RD3 is significantly different from the other renewable diesel fuels in that the aromatic content more closely resembles the ULSD fuels. Fused-ring aromatics are readily observable in the ULSD, SO, and OS samples, as well as RD3, and are noticeably absent in the remaining RD and GTL fuels. Finally, ULSD3 differs from the other ULSD fuels by having a significantly lower aromatic carbon content and higher cycloparaffinic carbon content. In addition to providing important comparative compositional information regarding the various diesel fuels, this report also provides important information about the capabilities of NMR

  11. Low-temperature pyrolysis of coal to produce diesel-fuel blends

    SciTech Connect (OSTI)

    Shafer, T.B.; Jett, O.J.; Wu, J.S.

    1982-10-01

    Low-temperature (623 to 773/sup 0/K) coal pyrolysis was investigated in a bench-scale retort. Factorially designed experiments were conducted to determine the effects of temperature, coal-particle size, and nitrogen flow rate on the yield of liquid products. Yield of condensable organic products relative to the proximate coal volatile matter increased by 3.1 and 6.4 wt % after increasing nitrogen purge flow rate from 0.465 to 1.68 L/min and retort temperature from 623 to 723/sup 0/K, respectively. The liquid product may be suitable for blending with diesel fuel. The viscosity and density of coal liquids produced at 723/sup 0/K were compared with those of diesel fuel. The coal liquids had a higher carbon-to-hydrogen ratio and a lower aliphatic-to-aromatic ratio than premium quality No. 2 diesel fuel. It was recommended that liquids from coal pyrolysis be blended with diesel fuel to determine stability of the mixture and performance of the blend in internal combustion engines.

  12. Volatility of Gasoline and Diesel Fuel Blends for Supercritical...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Preparation, Injection and Combustion of Supercritical Fluids Evaluation of Biodiesel Fuels from Supercritical Fluid Processing with the Advanced ...

  13. Elastomer Compatibility Testing of Renewable Diesel Fuels

    SciTech Connect (OSTI)

    Frame, E.; McCormick, R. L.

    2005-11-01

    In this study, the integrity and performance of six elastomers were tested with ethanol-diesel and biodiesel fuel blends.

  14. Estimating Impacts of Diesel Fuel Reformulation with Vector-based Blending

    SciTech Connect (OSTI)

    Hadder, G.R.

    2003-01-23

    The Oak Ridge National Laboratory Refinery Yield Model has been used to study the refining cost, investment, and operating impacts of specifications for reformulated diesel fuel (RFD) produced in refineries of the U.S. Midwest in summer of year 2010. The study evaluates different diesel fuel reformulation investment pathways. The study also determines whether there are refinery economic benefits for producing an emissions reduction RFD (with flexibility for individual property values) compared to a vehicle performance RFD (with inflexible recipe values for individual properties). Results show that refining costs are lower with early notice of requirements for RFD. While advanced desulfurization technologies (with low hydrogen consumption and little effect on cetane quality and aromatics content) reduce the cost of ultra low sulfur diesel fuel, these technologies contribute to the increased costs of a delayed notice investment pathway compared to an early notice investment pathway for diesel fuel reformulation. With challenging RFD specifications, there is little refining benefit from producing emissions reduction RFD compared to vehicle performance RFD. As specifications become tighter, processing becomes more difficult, blendstock choices become more limited, and refinery benefits vanish for emissions reduction relative to vehicle performance specifications. Conversely, the emissions reduction specifications show increasing refinery benefits over vehicle performance specifications as specifications are relaxed, and alternative processing routes and blendstocks become available. In sensitivity cases, the refinery model is also used to examine the impact of RFD specifications on the economics of using Canadian synthetic crude oil. There is a sizeable increase in synthetic crude demand as ultra low sulfur diesel fuel displaces low sulfur diesel fuel, but this demand increase would be reversed by requirements for diesel fuel reformulation.

  15. A Multicomponent Blend as a Diesel Fuel Surrogate for Compression Ignition Engine Applications

    SciTech Connect (OSTI)

    Pei, Yuanjiang; Mehl, Marco; Liu, Wei; Lu, Tianfeng; Pitz, William J.; Som, Sibendu

    2015-05-12

    A mixture of n-dodecane and m-xylene is investigated as a diesel fuel surrogate for compression ignition engine applications. Compared to neat n-dodecane, this binary mixture is more representative of diesel fuel because it contains an alkyl-benzene which represents an important chemical class present in diesel fuels. A detailed multi-component mechanism for n-dodecane and m-xylene was developed by combining a previously developed n-dodecane mechanism with a recently developed mechanism for xylenes. The xylene mechanism is shown to reproduce experimental ignition data from a rapid compression machine and shock tube, speciation data from the jet stirred reactor and flame speed data. This combined mechanism was validated by comparing predictions from the model with experimental data for ignition in shock tubes and for reactivity in a flow reactor. The combined mechanism, consisting of 2885 species and 11754 reactions, was reduced to a skeletal mechanism consisting 163 species and 887 reactions for 3D diesel engine simulations. The mechanism reduction was performed using directed relation graph (DRG) with expert knowledge (DRG-X) and DRG-aided sensitivity analysis (DRGASA) at a fixed fuel composition of 77% of n-dodecane and 23% m-xylene by volume. The sample space for the reduction covered pressure of 1 – 80 bar, equivalence ratio of 0.5 – 2.0, and initial temperature of 700 – 1600 K for ignition. The skeletal mechanism was compared with the detailed mechanism for ignition and flow reactor predictions. Finally, the skeletal mechanism was validated against a spray flame dataset under diesel engine conditions documented on the Engine Combustion Network (ECN) website. These multi-dimensional simulations were performed using a Representative Interactive Flame (RIF) turbulent combustion model. Encouraging results were obtained compared to the experiments with regards to the predictions of ignition delay and lift-off length at different ambient temperatures.

  16. In-Cylinder Fuel Blending of Gasoline/Diesel for Improved Efficiency and Lowest Possible Emissions on a Multi-Cylinder Light-Duty Diesel Engine

    SciTech Connect (OSTI)

    Curran, Scott; Prikhodko, Vitaly Y; Wagner, Robert M; Parks, II, James E; Cho, Kukwon; Sluder, Scott; Kokjohn, Sage; Reitz, Rolf

    2010-01-01

    In-cylinder fuel blending of gasoline/diesel fuel is investigated on a multi-cylinder light-duty diesel engine as a potential strategy to control in-cylinder fuel reactivity for improved efficiency and lowest possible emissions. This approach was developed and demonstrated at the University of Wisconsin through modeling and single-cylinder engine experiments. The objective of this study is to better understand the potential and challenges of this method on a multi-cylinder engine. More specifically, the effect of cylinder-to-cylinder imbalances, heat rejection, and in-cylinder charge motion as well as the potential limitations imposed by real-world turbo-machinery were investigated on a 1.9-liter four-cylinder engine. This investigation focused on one engine condition, 2300 rpm, 4.2 bar brake mean effective pressure (BMEP). Gasoline was introduced with a port-fuel-injection system. Parameter sweeps included gasoline-to-diesel fuel ratio, intake air mixture temperature, in-cylinder swirl number, and diesel start-of-injection phasing. In addition, engine parameters were trimmed for each cylinder to balance the combustion process for maximum efficiency and lowest emissions. An important observation was the strong influence of intake charge temperature on cylinder pressure rise rate. Experiments were able to show increased thermal efficiency along with dramatic decreases in oxides of nitrogen (NOX) and particulate matter (PM). However, indicated thermal efficiency for the multi-cylinder experiments were less than expected based on modeling and single-cylinder results. The lower indicated thermal efficiency is believed to be due increased heat transfer as compared to the model predictions and suggest a need for improved cylinder-to-cylinder control and increased heat transfer control.

  17. Method of producing a diesel fuel blend having a pre-determined flash-point and pre-determined increase in cetane number

    DOE Patents [OSTI]

    Waller, Francis Joseph; Quinn, Robert

    2004-07-06

    The present invention relates to a method of producing a diesel fuel blend having a pre-determined flash-point and a pre-determined increase in cetane number over the stock diesel fuel. Upon establishing the desired flash-point and increase in cetane number, an amount of a first oxygenate with a flash-point less than the flash-point of the stock diesel fuel and a cetane number equal to or greater than the cetane number of the stock diesel fuel is added to the stock diesel fuel in an amount sufficient to achieve the pre-determined increase in cetane number. Thereafter, an amount of a second oxygenate with a flash-point equal to or greater than the flash-point of the stock diesel fuel and a cetane number greater than the cetane number of the stock diesel fuel is added to the stock diesel fuel in an amount sufficient to achieve the pre-determined increase in cetane number.

  18. Reformulated diesel fuel

    DOE Patents [OSTI]

    McAdams, Hiramie T [Carrollton, IL; Crawford, Robert W [Tucson, AZ; Hadder, Gerald R [Oak Ridge, TN; McNutt, Barry D [Arlington, VA

    2006-03-28

    Reformulated diesel fuels for automotive diesel engines which meet the requirements of ASTM 975-02 and provide significantly reduced emissions of nitrogen oxides (NO.sub.x) and particulate matter (PM) relative to commercially available diesel fuels.

  19. Low emissions diesel fuel

    DOE Patents [OSTI]

    Compere, A.L.; Griffith, W.L.; Dorsey, G.F.; West, B.H.

    1998-05-05

    A method and matter of composition for controlling NO{sub x} emissions from existing diesel engines. The method is achieved by adding a small amount of material to the diesel fuel to decrease the amount of NO{sub x} produced during combustion. Specifically, small amounts, less than about 1%, of urea or a triazine compound (methylol melamines) are added to diesel fuel. Because urea and triazine compounds are generally insoluble in diesel fuel, microemulsion technology is used to suspend or dissolve the urea or triazine compound in the diesel fuel. A typical fuel formulation includes 5% t-butyl alcohol, 4.5% water, 0.5% urea or triazine compound, 9% oleic acid, and 1% ethanolamine. The subject invention provides improved emissions in heavy diesel engines without the need for major modifications.

  20. Low emissions diesel fuel

    DOE Patents [OSTI]

    Compere, Alicia L.; Griffith, William L.; Dorsey, George F.; West, Brian H.

    1998-01-01

    A method and matter of composition for controlling NO.sub.x emissions from existing diesel engines. The method is achieved by adding a small amount of material to the diesel fuel to decrease the amount of NO.sub.x produced during combustion. Specifically, small amounts, less than about 1%, of urea or a triazine compound (methylol melamines) are added to diesel fuel. Because urea and triazine compounds are generally insoluble in diesel fuel, microemulsion technology is used to suspend or dissolve the urea or triazine compound in the diesel fuel. A typical fuel formulation includes 5% t-butyl alcohol, 4.5% water, 0.5% urea or triazine compound, 9% oleic acid, and 1% ethanolamine. The subject invention provides improved emissions in heavy diesel engines without the need for major modifications.

  1. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    On-Highway Diesel Fuel Prices & Coefficients of Variation Report

  2. Effect of Biodiesel Blends on Diesel Particulate Filter Performance

    SciTech Connect (OSTI)

    Williams, A.; McCormick, R. L.; Hayes, R. R.; Ireland, J.; Fang, H. L.

    2006-11-01

    Presents results of tests of ultra-low sulfur diesel blended with soy-biodiesel at 5 percent using a Cummins ISB engine with a diesel particulate filter.

  3. DIESEL FUEL LUBRICATION

    SciTech Connect (OSTI)

    Qu, Jun

    2012-01-01

    The diesel fuel injector and pump systems contain many sliding interfaces that rely for lubrication upon the fuels. The combination of the poor fuel lubricity and extremely tight geometric clearance between the plunger and bore makes the diesel fuel injector vulnerable to scuffing damage that severely limits the engine life. In order to meet the upcoming stricter diesel emission regulations and higher engine efficiency requirements, further fuel refinements that will result in even lower fuel lubricity due to the removal of essential lubricating compounds, more stringent operation conditions, and tighter geometric clearances are needed. These are expected to increase the scuffing and wear vulnerability of the diesel fuel injection and pump systems. In this chapter, two approaches are discussed to address this issue: (1) increasing fuel lubricity by introducing effective lubricity additives or alternative fuels, such as biodiesel, and (2) improving the fuel injector scuffing-resistance by using advanced materials and/or surface engineering processes. The developing status of the fuel modification approach is reviewed to cover topics including fuel lubricity origins, lubricity improvers, alternative fuels, and standard fuel lubricity tests. The discussion of the materials approach is focused on the methodology development for detection of the onset of scuffing and evaluation of the material scuffing characteristics.

  4. Fuel and fuel blending components from biomass derived pyrolysis oil

    DOE Patents [OSTI]

    McCall, Michael J.; Brandvold, Timothy A.; Elliott, Douglas C.

    2012-12-11

    A process for the conversion of biomass derived pyrolysis oil to liquid fuel components is presented. The process includes the production of diesel, aviation, and naphtha boiling point range fuels or fuel blending components by two-stage deoxygenation of the pyrolysis oil and separation of the products.

  5. Ethanol-blended Fuels

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ethanol-Blended Fuels A Study Guide and Overview of: * Ethanol's History in the U.S. and Worldwide * Ethanol Science and Technology * Engine Performance * Environmental Effects * Economics and Energy Security The Curriculum This curriculum on ethanol and its use as a fuel was developed by the Clean Fuels Development Coalition in cooperation with the Nebraska Ethanol Board. This material was developed in response to the need for instructional materials on ethanol and its effects on vehicle

  6. Diesel engine fuel systems

    SciTech Connect (OSTI)

    1994-12-31

    The film shows the basic structure of diesel systems, including the parts and operation of injectors and fuel pumps. It discusses Bosch, General Motors, and Excello Equipment. This title has been declared obsolete for use within the sponsoring agency, but may have content value for educational use.

  7. Diesel engine fuel systems

    SciTech Connect (OSTI)

    Not Available

    1994-01-01

    The film shows the basic structure of diesel systems, including the parts and operation of injectors and fuel pumps. It discusses Bosch, General Motors, and Excello Equipment. This title has been declared obsolete for use within the sponsoring agency, but may have content value for educational use.

  8. Drive cycle analysis of butanol/diesel blends in a light-duty vehicle.

    SciTech Connect (OSTI)

    Miers, S. A.; Carlson, R. W.; McConnell, S. S.; Ng, H. K.; Wallner, T.; LeFeber, J.; Energy Systems; Esper Images Video & Multimedia

    2008-10-01

    The potential exists to displace a portion of the petroleum diesel demand with butanol and positively impact engine-out particulate matter. As a preliminary investigation, 20% and 40% by volume blends of butanol with ultra low sulfur diesel fuel were operated in a 1999 Mercedes Benz C220 turbo diesel vehicle (Euro III compliant). Cold and hot start urban as well as highway drive cycle tests were performed for the two blends of butanol and compared to diesel fuel. In addition, 35 MPH and 55 MPH steady-state tests were conducted under varying road loads for the two fuel blends. Exhaust gas emissions, fuel consumption, and intake and exhaust temperatures were acquired for each test condition. Filter smoke numbers were also acquired during the steady-state tests.

  9. Alternative Fuels Data Center: Ethanol Blends

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Blends to someone by E-mail Share Alternative Fuels Data Center: Ethanol Blends on Facebook Tweet about Alternative Fuels Data Center: Ethanol Blends on Twitter Bookmark Alternative Fuels Data Center: Ethanol Blends on Google Bookmark Alternative Fuels Data Center: Ethanol Blends on Delicious Rank Alternative Fuels Data Center: Ethanol Blends on Digg Find More places to share Alternative Fuels Data Center: Ethanol Blends on AddThis.com... More in this section... Ethanol Basics Blends E15

  10. Gasoline and Diesel Fuel Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    These data are made available through EIA's hotline (202-586-6966), EIA's web page, and through EIA's email notification, regular and wireless. Previous Diesel Fuel Price Data ...

  11. Alternative Fuels Data Center: Diesel Vehicle Availability

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Diesel Vehicle Availability to someone by E-mail Share Alternative Fuels Data Center: Diesel Vehicle Availability on Facebook Tweet about Alternative Fuels Data Center: Diesel Vehicle Availability on Twitter Bookmark Alternative Fuels Data Center: Diesel Vehicle Availability on Google Bookmark Alternative Fuels Data Center: Diesel Vehicle Availability on Delicious Rank Alternative Fuels Data Center: Diesel Vehicle Availability on Digg Find More places to share Alternative Fuels Data Center:

  12. Diesel fuel from biomass

    SciTech Connect (OSTI)

    Kuester, J.L.

    1984-01-01

    A project to convert various biomass materials to diesel type transportation fuel compatible with current engine designs and the existing distribution system is described. A continuous thermochemical indirect liquefaction approach is used. The system consists of a circulating solid fluidized bed gasification system to produce a synthesis gas containing olefins, hydrogen and carbon monoxide followed by a catalytic liquefaction step to convert the synthesis gas to liquid hydrocarbon fuel. The major emphasis on the project at the present time is to maximize product yield. A level of 60 gals of diesel type fuel per ton of feedstock (dry, ash free basis) is expected. Numerous materials have been processed through the conversion system without any significant change in product quality (essentially C/sub 7/-C/sub 17/ paraffinic hydrocarbons with cetane indicies of 50+). Other tasks in progress include factor studies, process simplification, process control and scale-up to a 10 ton/day Engineering Test Facility. 18 references, 4 figures, 9 tables.

  13. Alternative Fuels Data Center: Biodiesel Blends

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Blends to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Blends on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Blends on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Blends on Google Bookmark Alternative Fuels Data Center: Biodiesel Blends on Delicious Rank Alternative Fuels Data Center: Biodiesel Blends on Digg Find More places to share Alternative Fuels Data Center: Biodiesel Blends on AddThis.com... More in this section... Biodiesel Basics

  14. Heavy Alcohols as a Fuel Blending Agent for Compression Ignition Engine

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Applications | Department of Energy Alcohols as a Fuel Blending Agent for Compression Ignition Engine Applications Heavy Alcohols as a Fuel Blending Agent for Compression Ignition Engine Applications Blends of Phytol and diesel (by volume) were compared against baseline diesel experiments and simulations p-21_ramirez.pdf (351.23 KB) More Documents & Publications HD Applications of Significantly Downsized SI Engines Using Alcohol DI for Knock Avoidance Characterization of Dual-Fuel

  15. Reformulated diesel fuel and method

    DOE Patents [OSTI]

    McAdams, Hiramie T [Carrollton, IL; Crawford, Robert W [Tucson, AZ; Hadder, Gerald R [Oak Ridge, TN; McNutt, Barry D [Arlington, VA

    2006-08-22

    A method for mathematically identifying at least one diesel fuel suitable for combustion in an automotive diesel engine with significantly reduced emissions and producible from known petroleum blendstocks using known refining processes, including the use of cetane additives (ignition improvers) and oxygenated compounds.

  16. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    ... to the states covered by each primary publication cell. The distribution of allocations was proportional to the annual state total volume of retail on-highway diesel fuel sales. ...

  17. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    As of December 1, 2010, any on-highway diesel fuel sold is ULSD. The prices reported in ... The price estimates each week are obtained using simple averages at the sampling cell ...

  18. Gasoline and Diesel Fuel Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    for the previous year of weekly diesel fuel survey prices for each of the sampling cells. The sample size was determined for each cell by the formula: n' (et)2 n, where t was ...

  19. Rapid engine test to measure injector fouling in diesel engines using vegetable oil fuels

    SciTech Connect (OSTI)

    Korus, R.A.; Jaiduk, J.; Peterson, C.L.

    1985-11-01

    Short engine tests were used to determine the rate of carbon deposition on direct injection diesel nozzles. Winter rape, high-oleic and high-linoleic safflower blends with 50% diesel were tested for carbon deposit and compared to that with D-2 Diesel Control Fuel. Deposits were greatest with the most unsaturated fuel, high-linoleic safflower, and least with winter rape. All vegetable oil blends developed power similar to diesel fueled engines with a 6 to 8% greater fuel consumption. 8 references.

  20. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Sampling Methodology The respondents reporting to the weekly diesel price survey represent a stratified probability proportional to size (PPS) sample selected from a frame list of retail outlets. The outlet sampling frame was constructed using commercially available lists from several sources in order to provide comprehensive coverage of truck stops and service stations that sell on-highway diesel fuel in the United States. The frame includes about 62,000 service stations and 4,000 truck stops.

  1. Low-Level Ethanol Fuel Blends

    SciTech Connect (OSTI)

    Not Available

    2005-04-01

    This fact sheet addresses: (a) why Clean Cities promotes ethanol blends; (b) how these blends affect emissions; (c) fuel performance and availability; and (d) cost, incentives, and regulations.

  2. Assessment of the O2Diesel Operational Safety Program: December 23, 2002 -- June 30, 2007

    SciTech Connect (OSTI)

    TIAX LLC

    2006-06-01

    This report assesses O2Diesel's operational safety program using its ethanol-diesel blended fuel product.

  3. Diesel Fuel Price Pass-through

    Gasoline and Diesel Fuel Update (EIA)

    1000 Independence Avenue, SW Washington, DC 20585 Home | Petroleum | Gasoline | Diesel | Propane | Natural Gas | Electricity | Coal | Nuclear Renewables | Alternative Fuels |...

  4. Measurement of biodiesel blend and conventional diesel spray structure using x-ray radiography.

    SciTech Connect (OSTI)

    Kastengren, A. L.; Powell, C. F.; Wang, Y. J.; IM, K. S.; Wang, J.

    2009-11-01

    The near-nozzle structure of several nonevaporating biodiesel-blend sprays has been studied using X-ray radiography. Radiography allows quantitative measurements of the fuel distribution in sprays to be made with high temporal and spatial resolution. Measurements have been made at different values of injection pressure, ambient density, and with two different nozzle geometries to understand the influences of these parameters on the spray structure of the biodiesel blend. These measurements have been compared with corresponding measurements of Viscor, a diesel calibration fluid, to demonstrate the fuel effects on the spray structure. Generally, the biodiesel-blend spray has a similar structure to the spray of Viscor. For the nonhydroground nozzle used in this study, the biodiesel-blend spray has a slightly slower penetration into the ambient gas than the Viscor spray. The cone angle of the biodiesel-blend spray is generally smaller than that of the Viscor spray, indicating that the biodiesel-blend spray is denser than the Viscor spray. For the hydroground nozzle, both fuels produce sprays with initially wide cone angles that transition to narrow sprays during the steady-state portion of the injection event. These variations in cone angle with time occur later for the biodiesel-blend spray than for the Viscor spray, indicating that the dynamics of the injector needle as it opens are somewhat different for the two fuels.

  5. Diesel engine performance and emissions using different fuel/additive combinations

    SciTech Connect (OSTI)

    Sutton, D.L.; Rush, M.W.; Richards, P.

    1988-01-01

    It is probable that diesel fuel quality in Europe will fall as the need to blend conversion components into the diesel pool increases. In particular diesel ignition quality and stability could decrease and carbon residue and aromatic content increase. This paper discusses the effects of worsening fuel quality on combustion, injection characteristics and emissions and the efficacy of appropriate additives in overcoming these effects. Both direct injection and indirect injection engines were used in the investigations.

  6. Fuels and Lubricants to Support Advanced Diesel Engine Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    New Diesel Feedstocks and Future Fuels Future Engine Fluids Technologies: Durable, Fuel-Efficient, and Emissions-Friendly New Feedstocks and Replacement Fuel Diesel Engine ...

  7. Emissions from Buses with DDC 6V92 Engines Using Synthetic Diesel Fuel

    SciTech Connect (OSTI)

    Paul Norton; Keith Vertin; Nigel N. Clark; Donald W. Lyons; Mridul Gautam; Stephen Goguen; James Eberhardt

    1999-05-03

    Synthetic diesel fuel can be made from a variety of feedstocks, including coal, natural gas and biomass. Synthetic diesel fuels can have very low sulfur and aromatic content, and excellent autoignition characteristics. Moreover, synthetic diesel fuels may also economically competitive with California diesel fuel if .roduced in large volumes. Previous engine laboratory and field tests using a heavy-duty chassis dynamometer indicate that synthetic diesel fuel made using the Fischer-Tropsch (F-T) catalytic conversion process is a promising alternative fuel, because it can be used in unmodified diesel engines, and can reduce exhaust emissions substantially. The objective of this study was a preliminary assessment of the emissions from older model transit operated on Mossgas synthetic diesel fuel. The study compared emissions from transit buses operating on Federal no. 2 Diesel fuel, Mossgas synthetic diesel (MGSD), and a 50/50 blend of the two fuels. The buses were equipped with unmodified Detroit Diesel 6V92 2-stroke diesel engines. Six 40-foot buses were tested. Three of the buses had recently rebuilt engines and were equipped with an oxidation catalytic converter. Vehicle emissions measurements were performed using West Virginia University's unique transportable chassis dynamometer. The emissions were measured over the Central Business District (CBD) driving cycle. The buses performed well on both neat and blended MGSD fuel. Three buses without catalytic converters were tested. Compared to their emissions when operating on Federal no. 2 diesel fuel, these buses emitted an average of 5% lower oxides of nitrogen (NOx) and 20% lower particulate matter (PM) when operating on neat MGSD fuel. Catalyst equipped buses emitted an average of 8% lower NOx and 31% lower PM when operating on MGSD than when operating on Federal no. 2 diesel fuel.

  8. Biodiesel and Other Renewable Diesel Fuels

    SciTech Connect (OSTI)

    Not Available

    2006-11-01

    Present federal tax incentives apply to certain types of biomass-derived diesel fuels, which in energy policy and tax laws are described either as renewable diesel or biodiesel. To understand the distinctions between these diesel types it is necessary to understand the technologies used to produce them and the properties of the resulting products. This fact sheet contains definitions of renewable and biodiesel and discusses the processes used to convert biomass to diesel fuel and the properties of biodiesel and renewable diesel fuels.

  9. Fuel Formulation Effects on Diesel Fuel Injection, Combustion...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Impacts on Soot Nanostructure and Reactivity Effect of Alternative Fuels on Soot Properties and Regeneration of Diesel Particulate Filters Biodiesel Research Update

  10. A Comparison of Combustion and Emissions of Diesel Fuels and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    A Comparison of Combustion and Emissions of Diesel Fuels and Oxygenated Fuels in a Modern DI Diesel Engine A Comparison of Combustion and Emissions of Diesel Fuels and Oxygenated ...

  11. Fuel Formulation Effects on Diesel Fuel Injection, Combustion, Emissions

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    and Emission Control | Department of Energy Formulation Effects on Diesel Fuel Injection, Combustion, Emissions and Emission Control Fuel Formulation Effects on Diesel Fuel Injection, Combustion, Emissions and Emission Control 2003 DEER Conference Presentation: The Pennsylvania State University 2003_deer_boehman.pdf (989.32 KB) More Documents & Publications Fuel Impacts on Soot Nanostructure and Reactivity Effect of Alternative Fuels on Soot Properties and Regeneration of Diesel

  12. Pyrochem Catalysts for Diesel Fuel Reforming

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Pyrochem Catalysts for Diesel Fuel Reforming Success Story Converting heavy hydrocarbons, such as diesel and coal-based fuels, into hydrogen-rich synthesis gas is a necessary step for fuel cells and other applications. The high sulfur and aromatic content of these fuels poses a major technical challenge since these components can deactivate reforming catalysts. Taking on this challenge, NETL researchers invented a novel fuel-reforming catalyst that overcomes limitations of current catalysts by

  13. Gasoline and Diesel Fuel Update - Energy Information Administration

    Gasoline and Diesel Fuel Update (EIA)

    petroleum reports Gasoline and Diesel Fuel Update Gasoline Release Date: August 8, 2016 | Next Release Date: August 15, 2016 Diesel Fuel Release Date: August 8, 2016 | Next ...

  14. Emission Performance of Modern Diesel Engines Fueled with Biodiesel...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Performance of Modern Diesel Engines Fueled with Biodiesel Emission Performance of Modern Diesel Engines Fueled with Biodiesel This study presents full quantification of ...

  15. Pyrochem Catalysts for Diesel Fuel Reforming - Energy Innovation...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Vehicles and Fuels Vehicles and Fuels Hydrogen and Fuel Cell Hydrogen and Fuel Cell Return to Search Pyrochem Catalysts for Diesel Fuel Reforming National Energy Technology...

  16. On-Road Use of Fischer-Tropsch Diesel Blends

    SciTech Connect (OSTI)

    Nigel Clark; Mridul Gautam; Donald Lyons; Chris Atkinson; Wenwei Xie; Paul Norton; Keith Vertin; Stephen Goguen; James Eberhardt

    1999-04-26

    Alternative compression ignition engine fuels are of interest both to reduce emissions and to reduce U.S. petroleum fuel demand. A Malaysian Fischer-Tropsch gas-to-liquid fuel was compared with California No.2 diesel by characterizing emissions from over the road Class 8 tractors with Caterpillar 3176 engines, using a chassis dynamometer and full scale dilution tunnel. The 5-Mile route was employed as the test schedule, with a test weight of 42,000 lb. Levels of oxides of nitrogen (NO{sub x}) were reduced by an average of 12% and particulate matter (PM) by 25% for the Fischer-Tropsch fuel over the California diesel fuel. Another distillate fuel produced catalytically from Fischer-Tropsch products originally derived from natural gas by Mossgas was also compared with 49-state No.2 diesel by characterizing emissions from Detroit Diesel 6V-92 powered transit buses, three of them equipped with catalytic converters and rebuilt engines, and three without. The CBD cycle was employed as the test schedule, with a test weight of 33,050 lb. For those buses with catalytic converters and rebuilt engines, NO x was reduced by 8% and PM was reduced by 31% on average, while for those buses without, NO x was reduced by 5% and PM was reduced by 20% on average. It is concluded that advanced compression ignition fuels from non-petroleum sources can offer environmental advantages in typical line haul and city transit applications.

  17. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Diesel Fuel Pump Components History WHAT WE PAY FOR IN A GALLON OF DIESEL FUEL Mon-yr Retail Price (Dollars per gallon) Refining (percentage) Distribution & Marketing (percentage) Taxes (percentage) Crude Oil (percentage) May-02 1.305 5.1 11.3 36.9 46.6 Jun-02 1.286 6.6 11.2 37.5 44.7 Jul-02 1.299 5.3 12.1 37.1 45.5 Aug-02 1.328 8.6 7.8 36.3 47.4 Sep-02 1.411 12.0 7.5 34.2 46.3 Oct-02 1.462 11.4 10.9 33 44.8 Nov-02 1.420 12.0 12.8 33.9 41.2 Dec-02 1.429 12.7 9.3 33.7 44.3 Jan-03 1.488 10.7

  18. Diesel Fuel: Use, Manufacturing, Supply and Distribution | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (OFCVT). deer07williams.pdf (235.17 KB) More Documents & Publications Marathon Sees Diesel Fuel in Future Diesel vs Gasoline Production Fueling U.S. Light Duty Diesel Vehicles

  19. Detailed HCCI Exhaust Speciation - ORNL Reference Fuel Blends...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    HCCI Exhaust Speciation - ORNL Reference Fuel Blends Detailed HCCI Exhaust Speciation - ORNL Reference Fuel Blends *Accurately measure exhaust profile from an HCCI engine with a ...

  20. Straight Vegetable Oil as a Diesel Fuel? (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-05-01

    Discusses the use of straight vegetable oil as a diesel fuel and the use of biodiesel as a transportation fuel.

  1. Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Biodiesel Printable Version Share this resource Send a link to Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel to someone by E-mail Share Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Facebook Tweet about Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Twitter Bookmark Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Google Bookmark Alternative Fuels Data Center: Diesel Vehicles Using Biodiesel on Delicious Rank Alternative

  2. Application of Synthetic Diesel Fuels | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Synthetic Diesel Fuels Application of Synthetic Diesel Fuels 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_schaberg.pdf (462.75 KB) More Documents & Publications Effect of GTL Diesel Fuels on Emissions and Engine Performance The Potential of GTL Diesel to Meet Future Exhaust Emission Limits Performance Characteristics of Coal-to-Liquids (CTL) Diesel in a 50-State Emissions Compliant Passenger Car

  3. Fuel Efficiency and Emissions Optimization of Heavy-Duty Diesel...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    and Emissions Optimization of Heavy-Duty Diesel Engines using Model-Based Transient Calibration Fuel Efficiency and Emissions Optimization of Heavy-Duty Diesel Engines using ...

  4. Fuel Additivies for Improved Performance of Diesel Aftertreatment...

    Broader source: Energy.gov (indexed) [DOE]

    2 DEER Conference Presentation: Ethyl 2002deerhuman.pdf (167.51 KB) More Documents & Publications Impact of Fuel-Borne Catalysts on Diesel Aftertreatment Diesel Particulate ...

  5. U.S. diesel fuel price decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices decrease The U.S. average retail price for on-highway diesel fuel fell to $2.41 a gallon on Monday. That's down 2-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.66 a gallon, up 6-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast states at 2.26 a gallon, down half a penny

  6. U.S. diesel fuel price decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price decrease The U.S. average retail price for on-highway diesel fuel fell to $3.66 a gallon on Monday. That's down 1.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Midwest states at 3.79 a gallon, down 2-tenths of a penny from a week ago. Prices were lowest in the Lower Atlantic region at 3.47 a gallon, down 2.8 cents. This is Amerine Woodyard

  7. U.S. diesel fuel price decreases

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price decreases The U.S. average retail price for on-highway diesel fuel fell to $2.42 a gallon on Monday. That's down 3-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.71 a gallon, down 4-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast states at 2.28 a gallon, down 3-tenths of a penny

  8. U.S. diesel fuel prices decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices decrease The U.S. average retail price for on-highway diesel fuel fell to $2.43 a gallon on Monday. That's down half a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.71 a gallon, down half a penny from a week ago. Prices were lowest in the Gulf Coast states at 2.30 a gallon, down 1.1 cents. This is Amerine Woodyard

  9. U.S. diesel fuel prices decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices decrease The U.S. average retail price for on-highway diesel fuel fell to $2.52 a gallon on Monday. That's down 1.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.73 a gallon, down 1.3 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.36 a gallon, down 2.3

  10. U.S. diesel fuel prices decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices decrease The U.S. average retail price for on-highway diesel fuel fell to $2.53 a gallon on Monday. That's down 2 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.70 a gallon, down 2.6 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.33 a gallon, down 1.4 cents. This is Amerine Woodyard

  11. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Diesel Fuel Blend Tax Exemption The biodiesel or ethanol portion of blended fuel containing taxable diesel is exempt from the diesel fuel tax. The biodiesel or ethanol fuel blend must be clearly identified on the retail pump, storage tank, and sales invoice in order to be eligible for the exemption. (Reference Texas Statutes, Tax Code 162.2

  12. Emissions From Various Biodiesel Sources Compared to a Range of Diesel Fuels in DPF Equipped Diesel Engines

    SciTech Connect (OSTI)

    Williams, A.; Burton, J.; Christensen, E.; McCormick, R. L.; Tester, J.

    2011-01-01

    The purpose of this study was to measure the impact of various sources of petroleum-based and bio-based diesel fuels on regulated emissions and fuel economy in diesel particulate filter (DPF) equipped diesel engines. Two model year 2008 diesel engines were tested with nine fuels including a certification ultra-low sulfur diesel (ULSD), local ULSD, high aromatic ULSD, low aromatic ULSD, and twenty percent blends of biodiesel derived from algae, camelina, soy, tallow, and yellow grease. Regulated emissions were measured over the heavy duty diesel transient test cycle. Measurements were also made of DPF-out particle size distribution and total particle count from a 13-mode steady state test using a fast mobility particle sizer. Test engines were a 2008 Cummins ISB and a 2008 International Maxx Force 10, both equipped with actively regenerated DPFs. Fuel consumption was roughly 2% greater over the transient test cycle for the B20 blends versus certification ULSD in both engines, consistent with the slightly lower energy content of biodiesel. Unlike studies conducted on older model engines, these engines equipped with diesel oxidation catalysts and DPFs showed small or no measurable fuel effect on the tailpipe emissions of total hydrocarbons (THC), carbon monoxide (CO) and particulate matter (PM). No differences in particle size distribution or total particle count were seen in a comparison of certification ULSD and B20 soy, with the exception of engine idling conditions where B20 produced a small reduction in the number of nucleation mode particles. In the Cummins engine, B20 prepared from algae, camelina, soy, and tallow resulted in an approximately 2.5% increase in nitrogen oxides (NO{sub x}) compared to the base fuel. The International engine demonstrated a higher degree of variability for NO{sub x} emissions, and fuel effects could not be resolved (p > 0.05). The group of petroleum diesel test fuels produced a range of NO{sub x} emissions very similar to that

  13. Fuel Additivies for Improved Performance of Diesel Aftertreatment Systems |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Additivies for Improved Performance of Diesel Aftertreatment Systems Fuel Additivies for Improved Performance of Diesel Aftertreatment Systems 2002 DEER Conference Presentation: Ethyl 2002_deer_human.pdf (167.51 KB) More Documents & Publications Impact of Fuel-Borne Catalysts on Diesel Aftertreatment Diesel Particulate Filter: A Success for Faurecia Exhaust Systems Combination of Diesel fuel system architectures and Ceria-based fuel-borne catalysts for improvement

  14. Fuels and Lubricants to Support Advanced Diesel Engine Technology |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy and Lubricants to Support Advanced Diesel Engine Technology Fuels and Lubricants to Support Advanced Diesel Engine Technology 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_baranescu.pdf (87.57 KB) More Documents & Publications New Diesel Feedstocks and Future Fuels Future Engine Fluids Technologies: Durable, Fuel-Efficient, and Emissions-Friendly New Feedstocks and Replacement Fuel Diesel Engine Challenges

  15. Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Emerging Fuels Printable Version Share this resource Send a link to Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel to someone by E-mail Share Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel on Facebook Tweet about Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel on Twitter Bookmark Alternative Fuels Data Center: Hydrogenation-Derived Renewable Diesel on Google Bookmark Alternative Fuels Data Center: Hydrogenation-Derived Renewable

  16. The Effect of Diesel Fuel Properties on Emissions-Restrained...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    The Effect of Diesel Fuel Properties on Emissions-Restrained Fuel Economy at Mid-Load Conditions Statistical models developed from designed esperiments (varying fuel properties and ...

  17. Heavy Alcohols as a Fuel Blending Agent for Compression Ignition...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Avoidance Characterization of Dual-Fuel Reactivity Controlled Compression Ignition (RCCI) Using Hydrated Ethanol and Diesel Fuel BiodieselFuelManagementBestPracticesReport.pdf

  18. Wear mechanism and wear prevention in coal-fueled diesel engines. Task 7, Extended wear testing

    SciTech Connect (OSTI)

    Wakenell, J.F.; Fritz, S.G.; Schwalb, J.A.

    1991-07-01

    Over the past several years, interest has arisen in the development of coal-fired diesel engines for the purpose of efficiently utilizing the extensive coal reserves in the United States, and therefore reducing dependence on foreign oil. One process, which is being considered for use in producing clean coal fuel products involves mild gasification. This process produces by-products which can be further refined and, when blended with neat diesel fuel, used as an engine fuel. The purpose of this task was to test a blend of this coal liquid and diesel fuel (referred to as coal-lite) in an engine, and determine if any detrimental results were observed. This was done by performing a back-to-back performance and emission test of neat diesel fuel and the coal-lite fuel, followed by a 500-hour test of the coal-lite fuel, and completed by a back-to-back performance and emission test of the coal-lite fuel and neat diesel fuel.

  19. Wear mechanism and wear prevention in coal-fueled diesel engines

    SciTech Connect (OSTI)

    Wakenell, J.F.; Fritz, S.G.; Schwalb, J.A.

    1991-07-01

    Over the past several years, interest has arisen in the development of coal-fired diesel engines for the purpose of efficiently utilizing the extensive coal reserves in the United States, and therefore reducing dependence on foreign oil. One process, which is being considered for use in producing clean coal fuel products involves mild gasification. This process produces by-products which can be further refined and, when blended with neat diesel fuel, used as an engine fuel. The purpose of this task was to test a blend of this coal liquid and diesel fuel (referred to as coal-lite) in an engine, and determine if any detrimental results were observed. This was done by performing a back-to-back performance and emission test of neat diesel fuel and the coal-lite fuel, followed by a 500-hour test of the coal-lite fuel, and completed by a back-to-back performance and emission test of the coal-lite fuel and neat diesel fuel.

  20. FUEL FORMULATION EFFECTS ON DIESEL FUEL INJECTION, COMBUSTION, EMISSIONS AND EMISSION CONTROL

    SciTech Connect (OSTI)

    Boehman, A; Alam, M; Song, J; Acharya, R; Szybist, J; Zello, V; Miller, K

    2003-08-24

    This paper describes work under a U.S. DOE sponsored Ultra Clean Fuels project entitled ''Ultra Clean Fuels from Natural Gas,'' Cooperative Agreement No. DE-FC26-01NT41098. In this study we have examined the incremental benefits of moving from low sulfur diesel fuel and ultra low sulfur diesel fuel to an ultra clean fuel, Fischer-Tropsch diesel fuel produced from natural gas. Blending with biodiesel, B100, was also considered. The impact of fuel formulation on fuel injection timing, bulk modulus of compressibility, in-cylinder combustion processes, gaseous and particulate emissions, DPF regeneration temperature and urea-SCR NOx control has been examined. The primary test engine is a 5.9L Cummins ISB, which has been instrumented for in-cylinder combustion analysis and in-cylinder visualization with an engine videoscope. A single-cylinder engine has also been used to examine in detail the impacts of fuel formulation on injection timing in a pump-line-nozzle fueling system, to assist in the interpretation of results from the ISB engine.

  1. Dual-fueling turbocharged diesels with ethanol

    SciTech Connect (OSTI)

    Cruz, J.M.; Rotz, C.A.; Watson, D.H.

    1982-09-01

    Spray addition and carburetion methods were tested for dual-fueling a turbocharged, 65 kW diesel tractor. Approximately 30 percent of the fuel energy for the tractor was supplied by spraying ethanol into the intake air and about 46 percent by carburetion with little affect on the engine thermal efficiency. Further substitution of diesel fuel with ethanol was limited by knock. As the amount of ethanol fed into the engine was increased, ignition apparently changed from the steady burning process which normally occurs in a diesel engine to a rapid explosion which caused knock. The best fuel for the spray approach was a 50 percent ethanol/water solution and with the carburetor it was an 80 percent ethanol/water solution.

  2. Dual-fueling turbocharged diesels with ethanol

    SciTech Connect (OSTI)

    Cruz, J.M.; Rotz, C.A.; Watson, D.H.

    1982-09-01

    Spray addition and carburetion methods were tested for dual-fueling a turbocharged, 65 kW diesel tractor. Approximately 30 percent of the fuel energy for the tractor was supplied by spraying ethanol into the intake air and about 46 percent by carburetion with little affect on the engine thermal efficiency. Further substitution of diesel fuel with ethanol was limited by knock. As the amount of ethanol fed into the engine was increased, ignition apparently changed from the steady burning process which normally occurs in a diesel engine to a rapid explosion which caused knock. The best fuel for the spray approach was a 50 percent ethanol/water solution and with the carburetor it was an 80 percent ethanol/water solution. (Refs. 6).

  3. U.S. diesel fuel prices decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices decrease The U.S. average retail price for on-highway diesel fell to $2.48 a gallon on Monday. That's down 2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.70 a gallon, down 2.1 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.30 a gallon, down 1.3 cents. This is Amerine Woodyard

  4. Gasoline and Diesel Fuel Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    the underlying costs and profits (or losses) of producing and delivering the product to customers. The price of diesel at the pump reflects the costs and profits of the ...

  5. Effect of Biodiesel Blending on the Speciation of Soluble Organic Fraction from a Light Duty Diesel Engine

    SciTech Connect (OSTI)

    Strzelec, Andrea; Storey, John Morse; Lewis Sr, Samuel Arthur; Daw, C Stuart; Foster, Prof. Dave; Rutland, Prof. Christopher J.

    2010-01-01

    Soy methyl ester (SME) biodiesel was volumetrically blended with 2007 certification ultra low sulfur diesel (ULSD) fuel and run in a 1.7L direct-injection common rail diesel engine at one speed-load point (1500rpm, 2.6bar BMEP). Engine fueling rate and injection timing were adjusted to maintain a constant load, while particulate samples were collected in a diesel particulate filter (DPF) and with a dilution tunnel sampling train. The samples collected at these two locations were found to contain different levels of soluble organic fraction (SOF) and the different hydrocarbon species in the SOF. This observation indicates that traditional SOF measurements, in light of the specific sampling procedure used, may not be appropriate to DPF applications.

  6. DOE Awarded Patent for Reformulated Diesel Fuel | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Awarded Patent for Reformulated Diesel Fuel DOE Awarded Patent for Reformulated Diesel Fuel May 19, 2006 - 10:46am Addthis Available free of Licensing Fees, Cleaner for the Environment WASHINGTON, DC - The U.S. Department of Energy today announced that it has developed, patented, and made commercially available reformulated diesel fuels which when used can reduce nitrogen oxides up to 10% and particulate matter up to 22% compared to those currently available. The diesel fuel formulations covered

  7. Isoprenoid based alternative diesel fuel

    DOE Patents [OSTI]

    Lee, Taek Soon; Peralta-Yahya, Pamela; Keasling, Jay D.

    2015-08-18

    Fuel compositions are provided comprising a hydrogenation product of a monocyclic sesquiterpene (e.g., hydrogenated bisabolene) and a fuel additive. Methods of making and using the fuel compositions are also disclosed. ##STR00001##

  8. Emissions from Trucks using Fischer-Tropsch Diesel Fuel

    SciTech Connect (OSTI)

    Paul Norton; Keith Vertin; Brent Bailey; Nigel N. Clark; Donald W. Lyons; Stephen Goguen; James Eberhardt

    1998-10-19

    The Fischer-Tropsch (F-T) catalytic conversion process can be used to synthesize diesel fuels from a variety of feedstocks, including coal, natural gas and biomass. Synthetic diesel fuels can have very low sulfur and aromatic content, and excellent autoignition characteristics. Moreover, Fischer-Tropsch diesel fuels may also be economically competitive with California B- diesel fuel if produced in large volumes. overview of Fischer-Tropsch diesel fuel production and engine emissions testing is presented. Previous engine laboratory tests indicate that F-T diesel is a promising alternative fuel because it can be used in unmodified diesel engines, and substantial exhaust emissions reductions can be realized. The authors have performed preliminary tests to assess the real-world performance of F-T diesel fuels in heavy-duty trucks. Seven White-GMC Class 8 trucks equipped with Caterpillar 10.3 liter engines were tested using F-T diesel fuel. Vehicle emissions tests were performed using West Virginia University's unique transportable chassis dynamometer. The trucks were found to perform adequately on neat F-T diesel fuel. Compared to a California diesel fuel baseline, neat F-T diesel fuel emitted about 12% lower oxides of nitrogen (NOx) and 24% lower particulate matter over a five-mile driving cycle.

  9. Diesel Health Impacts & Recent Comparisons to Other Fuels | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Health Impacts & Recent Comparisons to Other Fuels Diesel Health Impacts & Recent Comparisons to Other Fuels 2002 DEER Conference Presentation: Natural Resources Defense Council ...

  10. Coal-fueled diesel locomotive test

    SciTech Connect (OSTI)

    Hsu, B.D.; McDowell, R.E.; Confer, G.L.; Basic, S.L.

    1993-01-01

    The biggest challenges to the development of a commercially-acceptable coal-fueled diesel-electric locomotive are integrating all systems into a working unit that can be operated in railroad service. This involves mainly the following three systems: (1) the multi-cylinder coal-fueled diesel engine, (2) the locomotive and engine controls, and (3) the CWS fuel supply system. Consequently, a workable 12-cylinder coal-fueled diesel engine was considered necessary at this stage to evolve the required locomotive support systems, in addition to gaining valuable multi-cylinder engine operating experience. The CWS fuel used during this project was obtained from Otisca, Inc. (Syracuse, NY). It was prepared from micronized and deashed Kentucky Blue Gem coal to 49.0% coal loading by weight, with less than 1% ash and 5 micron mean diameter particle size. Its higher heating value was analyzed at approximately 34630 kJ/k. Anti-agglomerating additive Triton X-114 was added to the CWS at GE Transportation Systems at 2% of coal weight. The nature of the Otisca CWS fuel makes it inherently more difficult to store, pump, and inject than diesel fuel, since concepts which govern Newtonian or normally viscous liquids do not apply entirely to CWS. Otisca CWS tends to be unstable and to settle in tanks and lines after a period of time, making it necessary to provide a means of agitation during storage. To avoid long term settling problems and to minimize losses, piping velocities were designed to be in the 60-90 m/min range.

  11. PCR+ In Diesel Fuels and Emissions Research

    SciTech Connect (OSTI)

    McAdams, H.T.

    2002-04-15

    In past work for the U.S. Department of Energy (DOE) and Oak Ridge National Laboratory (ORNL), PCR+ was developed as an alternative methodology for building statistical models. PCR+ is an extension of Principal Components Regression (PCR), in which the eigenvectors resulting from Principal Components Analysis (PCA) are used as predictor variables in regression analysis. The work was motivated by the observation that most heavy-duty diesel (HDD) engine research was conducted with test fuels that had been ''concocted'' in the laboratory to vary selected fuel properties in isolation from each other. This approach departs markedly from the real world, where the reformulation of diesel fuels for almost any purpose leads to changes in a number of interrelated properties. In this work, we present new information regarding the problems encountered in the conventional approach to model-building and how the PCR+ method can be used to improve research on the relationship between fuel characteristics and engine emissions. We also discuss how PCR+ can be applied to a variety of other research problems related to diesel fuels.

  12. Diesel fueled ship propulsion fuel cell demonstration project

    SciTech Connect (OSTI)

    Kumm, W.H.

    1996-12-31

    The paper describes the work underway to adapt a former US Navy diesel electric drive ship as a 2.4 Megawatt fuel cell powered, US Coast Guard operated, demonstrator. The Project will design the new configuration, and then remove the four 600 kW diesel electric generators and auxiliaries. It will design, build and install fourteen or more nominal 180 kW diesel fueled molten carbonate internal reforming direct fuel cells (DFCs). The USCG cutter VINDICATOR has been chosen. The adaptation will be carried out at the USCG shipyard at Curtis Bay, MD. A multi-agency (state and federal) cooperative project is now underway. The USCG prime contractor, AEL, is performing the work under a Phase III Small Business Innovation Research (SBIR) award. This follows their successful completion of Phases I and II under contract to the US Naval Sea Systems (NAVSEA) from 1989 through 1993 which successfully demonstrated the feasibility of diesel fueled DFCs. The demonstrated marine propulsion of a USCG cutter will lead to commercial, naval ship and submarine applications as well as on-land applications such as diesel fueled locomotives.

  13. Combination of Diesel fuel system architectures and Ceria-based fuel-borne

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    catalysts for improvement and simplification of the Diesel Particulate Filter System in serial applications | Department of Energy of Diesel fuel system architectures and Ceria-based fuel-borne catalysts for improvement and simplification of the Diesel Particulate Filter System in serial applications Combination of Diesel fuel system architectures and Ceria-based fuel-borne catalysts for improvement and simplification of the Diesel Particulate Filter System in serial applications 2003 DEER

  14. Straight Vegetable Oil as a Diesel Fuel?

    SciTech Connect (OSTI)

    2014-01-01

    Biodiesel, a renewable fuel produced from animal fats or vegetable oils, is popular among many vehicle owners and fleet managers seeking to reduce emissions and support U.S. energy security. Questions sometimes arise about the viability of fueling vehicles with straight vegetable oil (SVO), or waste oils from cooking and other processes, without intermediate processing. But SVO and waste oils differ from biodiesel (and conventional diesel) in some important ways and are generally not considered acceptable vehicle fuels for large-scale or long-term use.

  15. Key Benefits in Using Ethanol-Diesel Blends | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Verifying the Benefits and Resolving the Issues in the Commercialization of Ethanol Containing Diesel Fuels Biodiesel Basics (Fact Sheet), Vehicle Technologies Program (VTP) ...

  16. ?Aceite Vegetal Puro Como Combustible Diesel? (Straight Vegetable Oil as a Diesel Fuel? Spanish Version) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-06-01

    Discusses the use of straight vegetable oil as a diesel fuel and the use of biodiesel as a transportation fuel.

  17. How Exhaust Emissions Drive Diesel Engine Fuel Efficiency | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy How Exhaust Emissions Drive Diesel Engine Fuel Efficiency How Exhaust Emissions Drive Diesel Engine Fuel Efficiency 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Pacific Northwest Laboratory 2004_deer_muntean.pdf (922.09 KB) More Documents & Publications The State of the Science in Diesel Particulate Control APBF-DEC Heavy Duty NOx Adsorber/DPF Project: Heavy Duty Linehaul Platform Project Update Measurement and Characterization of Lean NOx Adsorber

  18. Carbon-Type Analysis and Comparison of Original and Reblended FACE Diesel Fuels (FACE 2, FACE 4, and FACE 7)

    SciTech Connect (OSTI)

    Bays, J. Timothy; King, David L.; O'Hagan, Molly J.

    2012-10-01

    This report summarizes the carbon-type analysis from 1H and 13C{1H} nuclear magnetic resonance spectroscopy (NMR) of Fuels for Advanced Combustion Engines (FACE) diesel blends, FD-2B, FD 4B, and FD-7B, and makes comparison of the new blends with the original FACE diesel blends, FD 2A, FD 4A, and FD-7A, respectively. Generally, FD-2A and FD-2B are more similar than the A and B blends of FD-4 and FD-7. The aromatic carbon content is roughly equivalent, although the new FACE blends have decreased monoaromatic content and increased di- and tri-cycloaromatic content, as well as a higher overall aromatic content, than the original FACE blends. The aromatic components of the new FACE blends generally have a higher alkyl substitution with longer alkyl substituents. The naphthenic and paraffinic contents remained relatively consistent. Based on aliphatic methyl and methylene carbon ratios, cetane numbers for FD-2A and -2B, and FD-7A and -7B are predicted to be consistent, while the cetane number for FD-4B is predicted to be higher than FD-4A. Overall, the new FACE fuel blends are fairly consistent with the original FACE fuel blends, but there are observable differences. In addition to providing important comparative compositional information on reformulated FACE diesel blends, this report also provides important information about the capabilities of the team at Pacific Northwest National Laboratory in the use of NMR spectroscopy for the detailed characterization and comparison of fuels and fuel blends.

  19. Adapting ethanol fuels to diesel engines

    SciTech Connect (OSTI)

    Not Available

    1981-08-01

    During the 2nd International Alcohol Symposium 1977, Daimler-Benz reported on the advantages and disadvantages of the various methods of using ethanol in originally diesel-operated commercial vehicles, and especially about the first results in the field of adapting the ethanol fuel to the requirements of conventional diesel engines. Investigations to this effect were continued by Daimler-Benz AG, Stuttgart, and Mercedes-Benz of Brasil in coordination with competent Brazilian government departments. The development effort is primarily adapted to Brazilian conditions, since ethanol fuel is intended as a long-term project in this country. This report is presented under headings - auto-ignition; durability tests; remedial measures; the injection systems; ethanol quality.

  20. Utiization of alternate fuels in diesel engines

    SciTech Connect (OSTI)

    Lestz, S.S.

    1980-09-01

    Accomplishments during three years entitled The Utilization of Alternate Fuels in Diesel Engines are summarized. Experiments were designed and test equipment set-up for the purpose of evaluating the use of methanol as a fumigant for light-duty Diesel engine service. The major experimental results were obtained from a multicylinder automotive Diesel engine. However, fundamental studies employing a GC/micro-reactor and a constant volume combustion bomb were also started. The purpose of this work was to measure some of the chemical and physical properties of methanol and methanol-air mixtures. The laminar flame velocity for various mixtures has been measured in the combustion bomb and thermal degradation studies have begun in the GC/micro-reactor. An Oldsmobile 5.7 liter V/8 Diesel engine was fumigated with methanol in amounts up to 40% of the fuel energy. The primary objectives of the study were to determine the effect of methanol fumigation on fuel efficiency, smoke, nitric oxide emission, and the occurrence of severe knock. An assessment of the biological activity for samples of the raw exhaust particulate and its soluble organic extract was also made using boh the Ames Salmonella typhimurium test and the B. subtilis Comptest. Generally, methanol fumigation was found to decrease NO emission for all conditions, to have a slight effect on smoke opacity, and to have a beneficial effect on fuel efficiency at higher loads. Also at higher loads, the methanol was found to induce what was defined as knock limited operation. The biological activity of the raw particulate matter was fond to be less than that of its soluble organic extract. However, for both the fumigation of methanol did enhance the biological activity.

  1. Effects of Turbulence on the Combustion Properties of Partially Premixed Flames of Canola Methyl Ester and Diesel Blends

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Dhamale, N.; Parthasarathy, R. N.; Gollahalli, S. R.

    2011-01-01

    Canola methyl ester (CME) is a biofuel that is a renewable alternative energy resource and is produced by the transesterification of canola oil. The objective of this study was to document the effects of turbulence on the combustion characteristics of blends of CME and No 2 diesel fuel in a partially-premixed flame environment. The experiments were conducted with mixtures of pre-vaporized fuel and air at an initial equivalence ratio of 7 and three burner exit Reynolds numbers, 2700, 3600, and 4500. Three blends with 25, 50, and 75% volume concentration of CME were studied. The soot volume fraction was highestmore » for the pure diesel flames and did not change significantly with Reynolds number due to the mutually compensating effects of increased carbon input rate and increased air entrainment as the Reynolds number was increased. The global NOx emission index was highest and the CO emission index was the lowest for the pure CME flame, and varied non-monotonically with biofuel content in the blend The mean temperature and the NOx concentration at three-quarter flame height were generally correlated, indicating that the thermal mechanism of NOx formation was dominant in the turbulent biofuel flames also.« less

  2. Diesel fuel component contribution to engine emissions and performance. Final report

    SciTech Connect (OSTI)

    Erwin, J.; Ryan, T.W. III; Moulton, D.S.

    1994-11-01

    Contemporary diesel fuel is a blend of several refinery streams chosen to meet specifications. The need to increase yield of transportation fuel from crude oil has resulted in converting increased proportions of residual oil to lighter products. This conversion is accomplished by thermal, catalytic, and hydrocracking of high molecular weight materials rich in aromatic compounds. The current efforts to reformulate California diesel fuel for reduced emissions from existing engines is an example of another driving force affecting refining practice: regulations designed to reduce exhaust emissions. Although derived from petroleum crude oil, reformulated diesel fuel is an alternative to current specification-grade diesel fuel, and this alternative presents opportunities and questions to be resolved by fuel and engine research. Various concerned parties have argued that regulations for fuel reformulation have not been based on an adequate data base. Despite numerous studies, much ambiguity remains about the relationship of exhaust parameters to fuel composition, particularly for diesel fuel. In an effort to gather pertinent data, the automobile industry and the oil refiners have joined forces in the Air Quality Improvement Research Program (AUTO/OIL) to address this question for gasoline. The objective of that work is to define the relationship between gasoline composition and the magnitude and composition of the exhaust emissions. The results of the AUTO/OEL program will also be used, along with other data bases, to define the EPA {open_quotes}complex model{close_quotes} for reformulated gasolines. Valuable insights have been gained for compression ignition engines in the Coordinating Research Council`s VE-1 program, but no program similar to AUTO/OIL has been started for diesel fuel reformulation. A more detailed understanding of the fuel/performance relationship is a readily apparent need.

  3. Isoprenoid based alternative diesel fuel (Patent) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Patent: Isoprenoid based alternative diesel fuel Citation Details In-Document Search ... Visit OSTI to utilize additional information resources in energy science and technology. A ...

  4. Impact of Fuel-Borne Catalysts on Diesel Aftertreatment | Department...

    Broader source: Energy.gov (indexed) [DOE]

    2003 DEER Conference Presentation: Ethyl Petroleum Additives 2003deerhuman.pdf (1.56 MB) More Documents & Publications Combination of Diesel fuel system architectures and ...

  5. Regulated and Unregulated Exhaust Emissions Comparison for Three Tier II Non-Road Diesel Engines Operating on Ethanol-Diesel Blends

    SciTech Connect (OSTI)

    Merritt, P. M.; Ulmet, V.; McCormick, R. L.; Mitchell, W. E.; Baumgard, K. J.

    2005-11-01

    Regulated and unregulated emissions (individual hydrocarbons, ethanol, aldehydes and ketones, polynuclear aromatic hydrocarbons (PAH), nitro-PAH, and soluble organic fraction of particulate matter) were characterized in engines utilizing duplicate ISO 8178-C1 eight-mode tests and FTP smoke tests. Certification No. 2 diesel (400 ppm sulfur) and three ethanol/diesel blends, containing 7.7 percent, 10 percent, and 15 percent ethanol, respectively, were used. The three, Tier II, off-road engines were 6.8-L, 8.1-L, and 12.5-L in displacement and each had differing fuel injection system designs. It was found that smoke and particulate matter emissions decreased with increasing ethanol content. Changes to the emissions of carbon monoxide and oxides of nitrogen varied with engine design, with some increases and some decreases. As expected, increasing ethanol concentration led to higher emissions of acetaldehyde (increases ranging from 27 to 139 percent). Benzene emissions were reduced by up to 50 percent with the ethanol-blended fuels. Emissions of 1,3-butadiene were also substantially decreased, with reductions ranging from 24 to 82 percent. Isolated trends were noted for certain PAHs. There was a decrease in 1-nitropyrene with use of ethanol in all cases. Particulate phase 1-nitropyrene was reduced from 18 to 62 percent. There was also a general increase in the proportion of heavy PAHs in the particulate phase with ethanol use, and although less pronounced, a general decrease in light PAHs in the particulate phase.

  6. Characterization of Dual-Fuel Reactivity Controlled Compression Ignition (RCCI) Using Hydrated Ethanol and Diesel Fuel

    Broader source: Energy.gov [DOE]

    This study uses numerical simulations to explore the use of wet ethanol as the low-reactivity fuel and diesel as the high-reactivity fuel for RCCI operation in a heavy-duty diesel engine.

  7. Complete Fuel Combustion for Diesel Engines Resulting in Greatly Reduced Emissions and Improved Fuel Efficiency

    Broader source: Energy.gov [DOE]

    An advanced engine design that is 15 percent more efficient than diesel, pollution free, and uses any fuel.

  8. Fueling U.S. Light Duty Diesel Vehicles | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Ultra-Low Sulfur diesel Update & Future Light Duty Diesel BiodieselFuelManagementBestPracticesReport.pdf Future Fuels: Issues and Opportunities

  9. Fuel Processor Enabled NOx Adsorber Aftertreatment System for Diesel Engine

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Emissions Control | Department of Energy Processor Enabled NOx Adsorber Aftertreatment System for Diesel Engine Emissions Control Fuel Processor Enabled NOx Adsorber Aftertreatment System for Diesel Engine Emissions Control 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Catalytica Energy Systems 2004_deer_catalytica.pdf (331 KB) More Documents & Publications Transient Dynamometer Testing of a Single-Leg NOX Adsorber Combined with a Fuel Processor for Enhanced NOx

  10. Table 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Petroleum Marketing Annual 1999 295 Table 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil Volumes by PAD District and State (Thousand Gallons per Day) - Continued...

  11. Gasoline and Diesel Fuel Update - Energy Information Administration

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    U.S. On-Highway Diesel Fuel Prices* (dollars per gallon)full history Change from 032116 ... collected on a gallon of fuel that are paid to the federal, state, or local government. ...

  12. Impact of Fuel Metal Impurities on the Durability of a Light-Duty Diesel Aftertreatment System

    SciTech Connect (OSTI)

    Williams, A.; Burton, J.; McCormick, R. L.; Toops, T.; Wereszczak, A. A.; Fox, E. E.; Lance, M. J.; Cavataio, G.; Dobson, D.; Warner, J.; Brezny, R.; Nguyen, K.; Brookshear, D. W.

    2013-04-01

    Alkali and alkaline earth metal impurities found in diesel fuels are potential poisons for diesel exhaust catalysts. A set of diesel engine production exhaust systems was aged to 150,000 miles. These exhaust systems included a diesel oxidation catalyst, selective catalytic reduction (SCR) catalyst, and diesel particulate filter (DPF). Four separate exhaust systems were aged, each with a different fuel: ultralow sulfur diesel containing no measureable metals, B20 (a common biodiesel blend) containing sodium, B20 containing potassium, and B20 containing calcium, which were selected to simulate the maximum allowable levels in B100 according to ASTM D6751. Analysis included Federal Test Procedure emissions testing, bench-flow reactor testing of catalyst cores, electron probe microanalysis (EPMA), and measurement of thermo-mechanical properties of the DPFs. EPMA imaging found that the sodium and potassium penetrated into the washcoat, while calcium remained on the surface. Bench-flow reactor experiments were used to measure the standard nitrogen oxide (NOx) conversion, ammonia storage, and ammonia oxidation for each of the aged SCR catalysts. Vehicle emissions tests were conducted with each of the aged catalyst systems using a chassis dynamometer. The vehicle successfully passed the 0.2 gram/mile NOx emission standard with each of the four aged exhaust systems.

  13. Coal-fueled diesel technology development: Nozzle development for coal-fueled diesel engines

    SciTech Connect (OSTI)

    Johnson, R.N.; Lee, M.; White, R.A.

    1994-01-01

    Direct injection of a micronized coal water mixture fuel into the combustion chambers of a diesel engine requires atomizing an abrasive slurry fuel with accurately sized orifices. Five injector orifice materials were evaluated: diamond compacts, chemical vapor deposited diamond tubes, thermally stabilized diamond, tungsten carbide with cobalt binder, and tungsten carbide with nickel binder with brazed and mechanically mounted orifice inserts. Nozzle bodies were fabricated of Armco 17-4 precipitation hardening stainless steel and Stellite 6B in order to withstand cyclic injection pressures and elevated temperatures. Based on a total of approximately 200 cylinder hours of engine operation with coal water mixture fuel diamond compacts were chosen for the orifice material.

  14. U.S. diesel fuel price falls under $3

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price falls under $3 The U.S. average retail price for on-highway diesel fuel fell 12 cents from a week ago to $2.93 a gallon on Monday. This marks the first time since September 2010 that diesel prices fell under $3 a gallon, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Central Atlantic region at 3.13 a gallon, down 10.8 cents from a week ago. Prices were lowest in the Gulf Coast region at 2.84 a gallon, down 12.1

  15. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices falls under $2 The U.S. average retail price for on-highway diesel fuel fell 2.8 cents from a week ago to $1.98 a gallon on Monday. This marks the first time since 2005 that diesel prices have fallen under 2 dollars, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Central Atlantic region at 2.20 a gallon, down 2.7 cents from a week ago. Prices were lowest in the Gulf Coast states at 1.86 a gallon, down 3.8

  16. Dual fuel combustion in a turbocharged diesel engine

    SciTech Connect (OSTI)

    Few, P.C.; Newlyn, H.A.

    1987-01-01

    The modification of a turbocharged diesel engine to a dual-fuel engine using methane as the supplementary fuel has been carried out. The effect of the gaseous fuel in a turbo-charged diesel engine has been investigated by means of a heat release study and a computer program already developed at Leicester Polytechnic. It is used in order to examine the rate of heat released under any operational condition.

  17. Alternatives to conventional diesel fuel-some potential implications of California's TAC decision on diesel particulate.

    SciTech Connect (OSTI)

    Eberhardt, J. J.; Rote, D. M.; Saricks, C. L.; Stodolsky, F.

    1999-08-10

    Limitations on the use of petroleum-based diesel fuel in California could occur pursuant to the 1998 declaration by California's Air Resources Board (CARB) that the particulate matter component of diesel exhaust is a carcinogen, therefore a toxic air contaminant (TAC) subject to provisions of the state's Proposition 65. It is the declared intention of CARB not to ban or restrict diesel fuel, per se, at this time. Assuming no total ban, Argonne National Laboratory (ANL) explored two feasible ''mid-course'' strategies. (1) Increased penetration of natural gas and greater gasoline use in the transportation fuels market, to the extent that some compression-ignition (CI) applications revert to spark-ignition (SI) engines. (2) New specifications requiring diesel fuel reformulation based on exhaust products of individual diesel fuel constituents. Each of these alternatives results in some degree of (conventional) diesel displacement. In the first case, diesel fuel is assumed admissible for ignition assistance as a pilot fuel in natural gas (NG)-powered heavy-duty vehicles, and gasoline demand in California increases by 32.2 million liters per day overall, about 21 percent above projected 2010 baseline demand. Natural gas demand increases by 13.6 million diesel liter equivalents per day, about 7 percent above projected (total) consumption level. In the second case, compression-ignition engines utilize substitutes for petroleum-based diesel having similar ignition and performance properties. For each case we estimated localized air emission plus generalized greenhouse gas and energy changes. Economic implications of vehicle and engine replacement were not evaluated.

  18. Certification of alternative aviation fuels and blend components

    SciTech Connect (OSTI)

    Wilson III, George R. ); Edwards, Tim; Corporan, Edwin ); Freerks, Robert L. )

    2013-01-15

    Aviation turbine engine fuel specifications are governed by ASTM International, formerly known as the American Society for Testing and Materials (ASTM) International, and the British Ministry of Defence (MOD). ASTM D1655 Standard Specification for Aviation Turbine Fuels and MOD Defence Standard 91-91 are the guiding specifications for this fuel throughout most of the world. Both of these documents rely heavily on the vast amount of experience in production and use of turbine engine fuels from conventional sources, such as crude oil, natural gas condensates, heavy oil, shale oil, and oil sands. Turbine engine fuel derived from these resources and meeting the above specifications has properties that are generally considered acceptable for fuels to be used in turbine engines. Alternative and synthetic fuel components are approved for use to blend with conventional turbine engine fuels after considerable testing. ASTM has established a specification for fuels containing synthesized hydrocarbons under D7566, and the MOD has included additional requirements for fuels containing synthetic components under Annex D of DS91-91. New turbine engine fuel additives and blend components need to be evaluated using ASTM D4054, Standard Practice for Qualification and Approval of New Aviation Turbine Fuels and Fuel Additives. This paper discusses these specifications and testing requirements in light of recent literature claiming that some biomass-derived blend components, which have been used to blend in conventional aviation fuel, meet the requirements for aviation turbine fuels as specified by ASTM and the MOD. The 'Table 1' requirements listed in both D1655 and DS91-91 are predicated on the assumption that the feedstocks used to make fuels meeting these requirements are from approved sources. Recent papers have implied that commercial jet fuel can be blended with renewable components that are not hydrocarbons (such as fatty acid methyl esters). These are not allowed blend

  19. Property:RenewableFuelStandard/BiomassBasedDiesel | Open Energy...

    Open Energy Info (EERE)

    Property Edit with form History Facebook icon Twitter icon Property:RenewableFuelStandardBiomassBasedDiesel Jump to: navigation, search This is a property of type Number. Pages...

  20. DOE Awarded Patent for Reformulated Diesel Fuel | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Awarded Patent for Reformulated Diesel Fuel May 19, 2006 - 10:46am Addthis Available free of Licensing Fees, Cleaner for the Environment WASHINGTON, DC - The U.S. Department of...

  1. Effect of carbon coating on scuffing performance in diesel fuels

    SciTech Connect (OSTI)

    Ajayi, O. O.; Alzoubi, M. F.; Erdemir, A.; Fenske, G. R.

    2000-06-29

    Low-sulfur and low-aromatic diesel fuels are being introduced in order to reduce various types of emissions in diesel engines to levels in compliance with current and impending US federal regulations. The low lubricity of these fuels, however, poses major reliability and durability problems for fuel injection components that depend on diesel fuel for their lubrication. In the present study, the authors evaluated the scuff resistance of surfaces in regular diesel fuel containing 500 ppm sulfur and in Fischer-Tropsch synthetic diesel fuel containing no sulfur or aromatics. Tests were conducted with the high frequency reciprocating test rig (HFRR) using 52100 steel balls and H-13 tool-steel flats with and without Argonne's special carbon coatings. Test results showed that the sulfur-containing fuels provide about 20% higher scuffing resistance than does fuel without sulfur. Use of the carbon coating on the flat increased scuffing resistance in both regular and synthetic fuels by about ten times, as measured by the contact severity index at scuffing. Scuffing failure in tests conducted with coated surfaces did not occur until the coating had been removed by the two distinct mechanisms of spalling and wear.

  2. Dual fuel control of a high speed turbocharged diesel engine

    SciTech Connect (OSTI)

    Few, P.C.; Sardari, P.

    1987-01-01

    The modification of a Ford 7600 turbocharged diesel engine to a dual fuel engine using methane as the supplementary fuel has been carried out. The paper describes the preliminary work of dual fuel control. Two systems are examined and their behaviour is presented.

  3. U.S. Diesel Fuel Price Continues to Increase

    U.S. Energy Information Administration (EIA) Indexed Site

    Diesel Fuel Price Continues to Increase The U.S. average retail price for on-highway diesel fuel rose to $2.87 a gallon on Monday. That's up 3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England and Central Atlantic regions at 3.08 a gallon. Prices were lowest in the Rocky Mountain states at 2.77 a gallon, down 6-tenths of a penny from a week ago.

  4. U.S. diesel fuel price continues to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price continues to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.14 a gallon on Monday. That's down 7.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Central Atlantic region at 3.30 a gallon, down 4.7 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.05 a gallon, down 7.6 cents. This is Amerine Woodyard, with EIA, in Washington. For more

  5. U.S. diesel fuel price continues to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price continues to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.05 a gallon on Monday. That's down 8.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Central Atlantic region at 3.24 a gallon, down 6.4 cents from a week ago. Prices were lowest in the Gulf Coast region at 2.96 a gallon, down 8.1 cents. This is Marlana Anderson, with EIA, in Washington. For more

  6. U.S. diesel fuel price continues to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price continues to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.41 a gallon on Monday. That's down 9-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.71 a gallon, down a tenth of a penny from a week ago. Prices were lowest in the Gulf Coast states at 2.26 a gallon, down 2.1

  7. U.S. diesel fuel price continues to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price continues to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.40 a gallon on Monday. That's down 1.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.69 a gallon, down 2.2 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.26 a gallon, up a tenth of a penny. This is Amerine Woodyard, with EIA, in Washington. For more

  8. U.S. diesel fuel price continues to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price continues to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.38 a gallon on Monday. That's down 2.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.66 a gallon, down 2.3 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.24 a gallon, down 2 cents. This is Amerine Woodyard, with EIA, in Washington. For more information,

  9. U.S. diesel fuel price continues to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price continues to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.21 a gallon on Monday. That's down 6.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region at 3.37 a gallon, down 6 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.12 a gallon, down 5.4 cents. This is Amerine Woodyard, with EIA, in Washington. For more

  10. U.S. diesel fuel price continues to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price continues to increase The U.S. average retail price for on-highway diesel fuel rose to $2.90 a gallon on Monday. That's up 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region at 3.17 a gallon, up 8.9 cents from a week ago. Prices were lowest in the Rocky Mountain states at 2.76 a gallon, down 8-tenths of a penny.

  11. U.S. diesel fuel price continues to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price continues to increase The U.S. average retail price for on-highway diesel fuel rose to $2.94 a gallon on Monday. That's up 3.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest at 3.29 a gallon in the New England region, up 11.8 cents from a week ago and in the Central Atlantic region, up 13.3 cents. Prices were lowest in the Rocky Mountain states at 2.78 a gallon, up 1.7 cents.

  12. U.S. diesel fuel price continues to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price continues to increase The U.S. average retail price for on-highway diesel fuel rose to $2.94 a gallon on Monday. That's up 8-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest at 3.33 a gallon in the New England and Central Atlantic regions. Prices were lowest at 2.80 a gallon in the Gulf Coast region and in the Rocky Mountain states.

  13. U.S. diesel fuel price remains stable

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price remains stable The U.S. average retail price for on-highway diesel fuel remained unchanged from a week ago at $2.43 a gallon on Monday. That's based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.71 a gallon, up 7-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast states at 2.29 a gallon, down 1.1 cents. This is Amerine Woodyard

  14. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.21 a gallon on Monday. That's down 2.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.46 a gallon, down 3-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast states at 2.11 a gallon, down 2.6 cents. This is Amerine Woodyard

  15. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.18 a gallon on Monday. That's down 3.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.43 a gallon, down 3.8 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.08 a gallon, down 3.4 cents. This is Amerine Woodyard

  16. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    9, 2016 U.S. diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.11 a gallon on Monday. That's down 6 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.36 a gallon, down 6.7 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.01 a gallon, down 6.6 cents.

  17. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.07 a gallon on Monday. That's down 4.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.33 a gallon, down 3.4 cents from a week ago. Prices were lowest in the Gulf Coast states at 1.96 a gallon, down 5.7 cents. This is Marcela Rourk, with EIA, in Washington.

  18. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease; fall to lowest level since March 2009 The U.S. average retail price for on-highway diesel fuel fell to $2.03 a gallon on Monday. That's down 4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.27 a gallon, down 5.2 cents from a week ago. Prices were lowest in the Gulf Coast states at 1.92 a gallon, down 4 cents. This is Amerine Woodyard

  19. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease; fall to lowest level in nearly 11 years The U.S. average retail price for on-highway diesel fuel fell to its lowest level in nearly 11 years to $2.01 a gallon on Monday. That's down 2.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.24 a gallon, down 3.7 cents from a week ago. Prices were lowest in the Gulf Coast states at 1.90 a gallon, down

  20. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price remains flat The U.S. average retail price for on-highway diesel fuel remained flat at $1.98 a gallon on Monday. That's up 3-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Central Atlantic region and West Coast states at 2.18 a gallon, down 1.3 cents from a week ago in both regions. Prices were lowest in the Rocky Mountain states at 1.86 a gallon, down half a penny. This is

  1. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price increase The U.S. average retail price for on-highway diesel fuel rose to $1.99 a gallon on Monday. That's up 6-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.19 a gallon, up a penny from a week ago. Prices were lowest in the Gulf Coast states at 1.87 a gallon, up a tenth of a penny. This is Amerine Woodyard

  2. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price increase The U.S. average retail price for on-highway diesel fuel rose to $2.02 a gallon on Monday. That's up 3.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.22 a gallon, up 2.8 cents from a week ago. Prices were lowest in the Gulf Coast states at 1.91 a gallon, up 3.3 cents. This is Amerine Woodyard

  3. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price continues to increases The U.S. average retail price for on-highway diesel fuel rose to $2.10 a gallon on Monday. That's up 7.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.29 a gallon, up 6.6 cents from a week ago. Prices were lowest in the Gulf Coast states at 1.99 a gallon, up 8.3 cents.. This is Amerine Woodyard

  4. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.82 a gallon on Monday. That's down 4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Central Atlantic region at 3.18 a gallon, down 5.2 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.68 a gallon, down 4 cents. This is Amerine Woodyard, with EIA, in Washington.

  5. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    April 6, 2015 U.S. diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.78 a gallon on Monday. That's down 4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Central Atlantic region at 3.12 a gallon, down 5.7 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.64 a gallon, down 3.2

  6. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    9, 2015 U.S. diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.84 a gallon on Monday. That's down 1.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Mid-Atlantic states at 3.09 a gallon, down 8-tenths of a penny from a week ago. Prices were lowest in the Midwest and Gulf Coast states at 2.73 a gallon. This is Amerine Woodyard

  7. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.83 a gallon on Monday. That's down 1.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Mid-Atlantic and West Coast states at 3.07 a gallon. Prices were lowest in the Gulf Coast states at 2.71 a gallon, down 1.8 cents from a week ago

  8. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.81 a gallon on Monday. That's down 1.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Mid-Atlantic and West Coast states at 3.04 a gallon. Prices were lowest in the Midwest states at 2.70 a gallon, down 2 cents from a week ago

  9. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.78 a gallon on Monday. That's down 3.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 3.00 a gallon down 3.3 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.67 a gallon, down 3.4 cents from a week ago

  10. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    7, 2015 U.S. diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.72 a gallon on Monday. That's down 5.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.96 a gallon, down 4.7 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.61 a gallon, down 6.3

  11. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.35 a gallon on Monday. That's down 3.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.63 a gallon, down 3.3 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.22 a gallon, down 1.8

  12. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.67 a gallon on Monday. That's down 5 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.91 a gallon, down 5.1 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.54 a gallon, down 7 ½

  13. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.32 a gallon on Monday. That's down 3.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.60 a gallon, down 3 ½ cents from a week ago. Prices were lowest in the Gulf Coast states at 2.18 a gallon, down 4

  14. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.62 a gallon on Monday. That's down 5.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region and West Coast states at 2.85 a gallon. Prices were lowest in the Gulf Coast states at 2.49 a gallon, down 4.9 cents from a week ago

  15. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.31 a gallon on Monday. That's down 6-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.58 a gallon, down 1.2 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.18 a gallon, down half

  16. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.62 a gallon on Monday. That's down 2-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.83 a gallon, down 1 ½ cents from a week ago. Prices were lowest in the Gulf Coast states at 2.48 a gallon, down 9-tenths of a penny.

  17. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.56 a gallon on Monday. That's down 5.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Central Atlantic states at 2.78 a gallon, down 3.9 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.41 a gallon, down 6.4

  18. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.49 a gallon on Monday. That's down 2.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.71 a gallon, down 1.9 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.34 a gallon, down 2.2 cents. This is Amerine Woodyard

  19. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.78 a gallon on Monday. That's down 2.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast region at 3.99 a gallon, down 2.9 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.70 a gallon, down a tenth of a penny. This is Marlana Anderson

  20. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.48 a gallon on Monday. That's down 1.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.69 a gallon, down 2.2 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.32 a gallon, down 1.7 cents. This is Amerine Woodyard

  1. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    20, 2014 U.S. diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.66 a gallon on Monday. That's down 4.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast region at 3.84 a gallon, down 5.6 cents from a week ago. Prices were lowest in the Lower Atlantic and Gulf Coast regions at 3.59 a gallon, down 4.8 cents in both regions. This is Amerine

  2. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.50 a gallon on Monday. That's down 3.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.70 a gallon, down a tenth of a penny from a week ago. Prices were lowest in the Gulf Coast states at 2.30 a gallon, down 2.6 cents. This is Amerine Woodyard

  3. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    7, 2014 U.S. diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.64 a gallon on Monday. That's down 2.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast region at 3.80 a gallon, down 3.6 cents from a week ago. Prices were lowest in the Lower Atlantic and Gulf Coast regions at 3.56 a gallon, down 3 ½ cents and down 2.6 cents, respectively.

  4. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.49 a gallon on Monday. That's down 1.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.70 a gallon, down 6-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast states at 2.29 a gallon, down 9-tenths of a penny. This is Amerine Woodyard

  5. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.63 a gallon on Monday. That's down 3.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Mid-west region at 3.74 a gallon, down 4.3 cents from a week ago. Prices were lowest in the Lower Atlantic states at 3.44 a gallon, down 2.8 cents.

  6. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.61 a gallon on Monday. That's down 2.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Rocky Mountain states at 3.73 a gallon, down 1.3 cents from a week ago. Prices were lowest in the Lower Atlantic states at 3.43 a gallon, down 1.2 cents

  7. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.54 a gallon on Monday. That's down 7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Rocky Mountain states at 3.66 a gallon, down 7.2 cents from a week ago. Prices were lowest in the Lower Atlantic states at 3.39 a gallon, down 4.3 cents

  8. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.34 a gallon on Monday. That's down 4.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.55 a gallon, down 5.1 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.21 a gallon, down 2 cents. This is Amerine Woodyard

  9. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.28 a gallon on Monday. That's down 5.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.51 a gallon, down 4.7 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.18 a gallon, down 3.1 cents. This is Amerine Woodyard

  10. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $2.24 a gallon on Monday. That's down 4.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.47 a gallon, down 3.8 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.14 a gallon, down 4.1 cents. This is Amerine Woodyard

  11. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.84 a gallon on Monday. That's down 8-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast region at 4.02 a gallon, down a tenth of a penny from a week ago. Prices were lowest in the Gulf Coast region at 3.74 a gallon, down 1

  12. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.82 a gallon on Monday. That's down 1.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast region at 4.01 a gallon, down half a penny from a week ago. Prices were lowest in the Gulf Coast region at 3.73 a gallon, down 7-tenths of a penny

  13. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    2, 2014 U.S. diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fuel fell to $3.81 a gallon on Monday. That's down 7-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast region at 4.03 a gallon, up 2 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.72 a gallon, down 1.2 cents. This is Amerine Woodyard, with EIA, in Washington.

  14. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.12 a gallon on Monday. That's up 2-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.32 a gallon, up 4-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast states at 2 dollars a gallon, up a penny. This is Amerine Woodyard

  15. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.17 a gallon on Monday. That's up 3.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.37 a gallon, up 3.9 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.05 a gallon, up 5.4 cents. This is Amerine Woodyard

  16. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.20 a gallon on Monday. That's up 3.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.41 a gallon, up 3 ½ cents from a week ago. Prices were lowest in the Gulf Coast states at 2.07 a gallon, up 2.8 cents. This is Amerine Woodyard

  17. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.85 a gallon on Monday. That's up 4.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Central Atlantic region at 3.13 a gallon, up 2.3 cents from a week ago. Prices were lowest in the Midwest states at 2.72 a gallon, up 2.4 cents.

  18. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.27 a gallon on Monday. That's up half a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.49 a gallon, up 1.2 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.13 a gallon, down 6-tenths of a penny. This is Amerine Woodyard

  19. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.88 a gallon on Monday. That's up 2.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Central Atlantic region at 3.15 a gallon, up 1.8 cents from a week ago. Prices were lowest in the Midwest states at 2.75 a gallon, up 3.3 cents

  20. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.30 a gallon on Monday. That's up 2.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.53 a gallon, up 3.7 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.16 a gallon, up 2.6 cents. This is Amerine Woodyard

  1. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.90 a gallon on Monday. That's up 2.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Central Atlantic region and West Coast states at 3.16 a gallon. Prices were lowest in the Midwest and Gulf Coast states at 2.79 a gallon.

  2. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.36 a gallon on Monday. That's up 6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.60 a gallon, up 6.7 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.23 a gallon, up 7.6 cents. This is Amerine Woodyard

  3. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.91 a gallon on Memorial Day Monday. That's up a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 3.17 a gallon, up 1.2 cents from a week ago. Prices were lowest in the Midwest and Gulf Coast states at 2.80 a gallon

  4. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.38 a gallon on Monday. That's up 2 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.65 a gallon, up 5.3 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.25 a gallon, up 2.1 cents. This is Amerine Woodyard

  5. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.41 a gallon on Monday. That's up 2 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.68 a gallon, up 3.1 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.28 a gallon, up 2.4 cents. This is Amerine Woodyard

  6. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.43 a gallon on Monday. That's up 2.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.71 a gallon, up 3 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.31 a gallon, up 2.9 cents. This is Amerine Woodyard

  7. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel increased to $2.41 a gallon on Monday. That's up 3.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.66 a gallon, up 3 and a half cents from a week ago. Prices were lowest in the Gulf Coast states at 2.27 a gallon, up 2

  8. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.56 a gallon on Monday. That's up 6.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.73 a gallon, up 3.6 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.34 a gallon, up 1.6 cents. This is Amerine Woodyard

  9. U.S. diesel fuel prices continues to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continues to increase The U.S. average retail price for on-highway diesel fuel rose to $2.12 a gallon on Monday. That's up 2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.31 a gallon, up 2.6 cents from a week ago. Prices were lowest in the Gulf Coast states at 1.99 a gallon, up a tenth of a penny. This is Amerine Woodyard

  10. U.S. diesel fuel prices decrease from previous week

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices decrease from previous week The U.S. average retail price for on-highway diesel fuel fell to $2.88 a gallon on Monday. That's down 2.5 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Mid-Atlantic and West Coast states at 3.12 a gallon. Prices were lowest in the Midwest states at 2.77 a gallon, down 3 cents from a week ago

  11. U.S. diesel fuel prices decrease from previous week

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices decrease from previous week The U.S. average retail price for on-highway diesel fuel fell to $2.87 a gallon on Monday. That's down 1.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the Mid-Atlantic states at 3.12 a gallon, down half a penny from a week ago. Prices were lowest in the Midwest states at 2.75 a gallon, down 2 cents from a week ago.

  12. U.S. diesel fuel prices remain stable

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices remain stable The U.S. average retail price for on-highway diesel fuel fell 6-tenths of a penny to $2.12 a gallon on Monday. That's based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.32 a gallon, up 2-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast states at 1.98 a gallon, down 1.8 cents. This is Amerine Woodyard

  13. U.S. diesel fuel prices remain stable

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices increase The U.S. average retail price for on-highway diesel fuel rose to $2.13 a gallon on Monday. That's up 1.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.33 a gallon, up 1 ½ cents from a week ago. Prices were lowest in the Gulf Coast states at 1.99 a gallon, up 9-tenths of a penny. This is Amerine Woodyard

  14. U.S. diesel fuel prices stable from previous week

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices stable from previous week The U.S. average retail price for on-highway diesel fuel fell slightly to $2.91 a gallon on Monday. That's down half a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 3.16 a gallon, down 1.1 cents from a week ago. Prices were lowest in the Midwest and Gulf Coast states at 2.80 a gallon.

  15. A Comparison of Combustion and Emissions of Diesel Fuels and Oxygenated Fuels in a Modern DI Diesel Engine

    Broader source: Energy.gov [DOE]

    A single-cylinder engine was used to study how selected oxygenated fuels affect combustion and emissions in a modern diesel engine during conventional combustion and low-temperature combustion (LTC).

  16. Requirements of diesel fuel quality: effects of poor-quality fuels

    SciTech Connect (OSTI)

    Fortnagel, M.; Gairiny, M.; Hardenberg, H.O.

    1982-05-01

    In recent years the properties of diesel fuels have changed distinctly, especially in the United States. Experience has shown that test methods and specifications used are no longer suitable for the adequate analysis and description of diesel fuels. This paper identifies a number of critical properties that should be analyzed in characterizing diesel fuel quality, uses examples from the United States to demonstrate the fuel-related problems (other than gaseous exhaust emissions) that result from a large diversity in diesel fuel properties, and discusses the available methods for dealing with these problems. The examples show the need to draw up improved methods for the better and more complete specification of good-quality diesel fuels, as well as the need to introduce these specifications on an international level.

  17. Investigation of Bio-Diesel Fueled Engines under Low-Temperature Combustion Strategies

    SciTech Connect (OSTI)

    Chia-fon F. Lee; Alan C. Hansen

    2010-09-30

    In accordance with meeting DOE technical targets this research was aimed at developing and optimizing new fuel injection technologies and strategies for the combustion of clean burning renewable fuels in diesel engines. In addition a simultaneous minimum 20% improvement in fuel economy was targeted with the aid of this novel advanced combustion system. Biodiesel and other renewable fuels have unique properties that can be leveraged to reduce emissions and increase engine efficiency. This research is an investigation into the combustion characteristics of biodiesel and its impacts on the performance of a Low Temperature Combustion (LTC) engine, which is a novel engine configuration that incorporates technologies and strategies for simultaneously reducing NOx and particulate emissions while increasing engine efficiency. Generating fundamental knowledge about the properties of biodiesel and blends with petroleum-derived diesel and their impact on in-cylinder fuel atomization and combustion processes was an important initial step to being able to optimize fuel injection strategies as well as introduce new technologies. With the benefit of this knowledge experiments were performed on both optical and metal LTC engines in which combustion and emissions could be observed and measured under realistic conditions. With the aid these experiments and detailed combustion models strategies were identified and applied in order to improve fuel economy and simultaneously reduce emissions.

  18. Table 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    839.2 135.0 1,251.9 See footnotes at end of table. 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil Volumes by PAD District and State Energy Information Administration ...

  19. Nitrogen oxide removal using diesel fuel and a catalyst

    DOE Patents [OSTI]

    Vogtlin, George E.; Goerz, David A.; Hsiao, Mark; Merritt, Bernard T.; Penetrante, Bernie M.; Reynolds, John G.; Brusasco, Ray

    2000-01-01

    Hydrocarbons, such as diesel fuel, are added to internal combustion engine exhaust to reduce exhaust NO.sub.x in the presence of a amphoteric catalyst support material. Exhaust NO.sub.x reduction of at least 50% in the emissions is achieved with the addition of less than 5% fuel as a source of the hydrocarbons.

  20. Five Kilowatt Solid Oxide Fuel Cell/Diesel Reformer

    SciTech Connect (OSTI)

    Dennis Witmer; Thomas Johnson

    2008-12-31

    Reducing fossil fuel consumption both for energy security and for reduction in global greenhouse emissions has been a major goal of energy research in the US for many years. Fuel cells have been proposed as a technology that can address both these issues--as devices that convert the energy of a fuel directly into electrical energy, they offer low emissions and high efficiencies. These advantages are of particular interest to remote power users, where grid connected power is unavailable, and most electrical power comes from diesel electric generators. Diesel fuel is the fuel of choice because it can be easily transported and stored in quantities large enough to supply energy for small communities for extended periods of time. This projected aimed to demonstrate the operation of a solid oxide fuel cell on diesel fuel, and to measure the resulting efficiency. Results from this project have been somewhat encouraging, with a laboratory breadboard integration of a small scale diesel reformer and a Solid Oxide Fuel Cell demonstrated in the first 18 months of the project. This initial demonstration was conducted at INEEL in the spring of 2005 using a small scale diesel reformer provided by SOFCo and a fuel cell provided by Acumentrics. However, attempts to integrate and automate the available technology have not proved successful as yet. This is due both to the lack of movement on the fuel processing side as well as the rather poor stack lifetimes exhibited by the fuel cells. Commercial product is still unavailable, and precommercial devices are both extremely expensive and require extensive field support.

  1. Dual fueling of a Caterpillar 3406 diesel engine

    SciTech Connect (OSTI)

    Bell, S.R.; Midkiff, K.C.; Doughty, G.; Brett, C.E.

    1996-05-01

    A Caterpillar 3406 turbocharged diesel engine was converted to operate in a dual-fuel mode and was evaluated for performance and emission characteristics for both diesel and natural gas operation. Full load power was achieved with dual fueling without knock. Similar fuel efficiencies were obtained with dual fueling a high loads, but efficiencies were lower for low loads. Bosch smoke numbers were reduced by over 50% with dual fueling for all cases investigated. NO{sub x} emissions were found to be lower at low loads and at high speeds under high load. CO emissions were significantly increased for dual fueling while CO{sub 2} concentrations in the exhaust were reduced for dual fueling.

  2. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fell to $2.45 a gallon on Monday. That's down 3.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.65 a gallon, down 4.2 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.28 a gallon, down 2.4 cents. This is Amerine Woodyard

  3. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    0, 2015 U.S. diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fell to $2.42 a gallon on Monday. That's down 2.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.62 a gallon, down 2.9 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.25 a gallon, down 2.6 cents.

  4. U.S. diesel fuel prices continue to decrease

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to decrease The U.S. average retail price for on-highway diesel fell to $2.38 a gallon on Monday. That's down 4.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 2.60 a gallon, down 2.1 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.23 a gallon, down 2.2 cents. This is Amerine Woodyard

  5. Diesel fuel to dc power: Navy & Marine Corps Applications

    SciTech Connect (OSTI)

    Bloomfield, D.P.

    1996-12-31

    During the past year Analytic Power has tested fuel cell stacks and diesel fuel processors for US Navy and Marine Corps applications. The units are 10 kW demonstration power plants. The USN power plant was built to demonstrate the feasibility of diesel fueled PEM fuel cell power plants for 250 kW and 2.5 MW shipboard power systems. We designed and tested a ten cell, 1 kW USMC substack and fuel processor. The complete 10 kW prototype power plant, which has application to both power and hydrogen generation, is now under construction. The USN and USMC fuel cell stacks have been tested on both actual and simulated reformate. Analytic Power has accumulated operating experience with autothermal reforming based fuel processors operating on sulfur bearing diesel fuel, jet fuel, propane and natural gas. We have also completed the design and fabrication of an advanced regenerative ATR for the USMC. One of the significant problems with small fuel processors is heat loss which limits its ability to operate with the high steam to carbon ratios required for coke free high efficiency operation. The new USMC unit specifically addresses these heat transfer issues. The advances in the mill programs have been incorporated into Analytic Power`s commercial units which are now under test.

  6. Fuel Effects on Low Temperature Combustion in a Light-Duty Diesel...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Low Temperature Combustion in a Light-Duty Diesel Engine Fuel Effects on Low Temperature Combustion in a Light-Duty Diesel Engine Six different fuels were investigated to study the ...

  7. Advanced Research in Diesel Fuel Sprays Using X-rays from the...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Research in Diesel Fuel Sprays Using X-rays from the Advanced Photon Source Advanced Research in Diesel Fuel Sprays Using X-rays from the Advanced Photon Source 2003 DEER ...

  8. U.S. diesel fuel price continue to decrease; lowest level since...

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel price continue to decrease; lowest level since March 2010 The U.S. average retail price for on-highway diesel fuel fell to 2.87 a gallon on Monday. That's down 6.7 ...

  9. Fuel consumption of freight trains hauled by diesel electric locomotives

    SciTech Connect (OSTI)

    Radford, R.W.

    1983-05-01

    The cost of railway diesel fuel has become an increasingly high proportion of railway operating expenses. The paper analyzes the generation and utilization of rail horsepower in freight train operations. The effects on fuel consumption of variations in several parameters including train consist, car weight, gradient, average speed, meet strategy, throttle control, locomotive axle arrangement, and train marshalling are examined. Estimates are made of the value, in terms of fuel cost, of weight reduction of freight cars and of selective train marshalling.

  10. Diesel fuel burner for diesel emissions control system

    DOE Patents [OSTI]

    Webb, Cynthia C.; Mathis, Jeffrey A.

    2006-04-25

    A burner for use in the emissions system of a lean burn internal combustion engine. The burner has a special burner head that enhances atomization of the burner fuel. Its combustion chamber is designed to be submersed in the engine exhaust line so that engine exhaust flows over the outer surface of the combustion chamber, thereby providing efficient heat transfer.

  11. U.S. diesel fuel prices continue to increase

    U.S. Energy Information Administration (EIA) Indexed Site

    diesel fuel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $2.27 a gallon on Monday. That's up 6.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 2.64 a gallon, up 3.9 cents from a week ago. Prices were lowest in the Gulf Coast states at 2 dollars a gallon, up 8.2 cents. This is Amerine Woodyard

  12. Recent Progress in the Development of Diesel Surrogate Fuels

    SciTech Connect (OSTI)

    Pitz, W J; Mueller, C J

    2009-12-09

    There has been much recent progress in the area of surrogate fuels for diesel. In the last few years, experiments and modeling have been performed on higher molecular weight components of relevance to diesel fuel such as n-hexadecane (n-cetane) and 2,2,4,4,6,8,8-heptamethylnonane (iso-cetane). Chemical kinetic models have been developed for all the n-alkanes up to 16 carbon atoms. Also, there has been much experimental and modeling work on lower molecular weight surrogate components such as n-decane and n-dodecane that are most relevant to jet fuel surrogates, but are also relevant to diesel surrogates where simulation of the full boiling point range is desired. For two-ring compounds, experimental work on decalin and tetralin recently has been published. For multi-component surrogate fuel mixtures, recent work on modeling of these mixtures and comparisons to real diesel fuel is reviewed. Detailed chemical kinetic models for surrogate fuels are very large in size. Significant progress also has been made in improving the mechanism reduction tools that are needed to make these large models practicable in multi-dimensional reacting flow simulations of diesel combustion. Nevertheless, major research gaps remain. In the case of iso-alkanes, there are experiments and modeling work on only one of relevance to diesel: iso-cetane. Also, the iso-alkanes in diesel are lightly branched and no detailed chemical kinetic models or experimental investigations are available for such compounds. More components are needed to fill out the iso-alkane boiling point range. For the aromatic class of compounds, there has been no new work for compounds in the boiling point range of diesel. Most of the new work has been on alkyl aromatics that are of the range C7 to C8, below the C10 to C20 range that is needed. For the chemical class of cycloalkanes, experiments and modeling on higher molecular weight components are warranted. Finally for multi-component surrogates needed to treat real

  13. Recent Progress in the Development of Diesel Surrogate Fuels

    SciTech Connect (OSTI)

    Pitz, W J

    2009-09-04

    There has been much recent progress in the area of surrogate fuels for diesel. In the last few years, experiments and modeling have been performed on higher molecular weight components of relevance to diesel fuel such as n-hexadecane (n-cetane) and 2,2,4,4,6,8,8-heptamethylnonane (iso-cetane). Chemical kinetic models have been developed for all the n-alkanes up to 16 carbon atoms. Also, there has been much experimental and modeling work on lower molecular weight surrogate components such as n-decane and do-decane which are most relevant to jet fuel surrogates, but are also relevant to diesel surrogates where simulation of the full boiling point range is desired. For the cycloalkanes, experimental work on decalin and tetralin recently has been published. For multi-component surrogate fuel mixtures, recent work on modeling of these mixtures and comparisons to real diesel fuel is reviewed. Detailed chemical kinetic models for surrogate fuels are very large in size. Significant progress also has been made in improving the mechanism reduction tools that are needed to make these large models practicable in multidimensional reacting flow simulations of diesel combustion. Nevertheless, major research gaps remain. In the case of iso-alkanes, there are experiments and modeling work on only one of relevance to diesel: iso-cetane. Also, the iso-alkanes in diesel are lightly branched and no detailed chemical kinetic models or experimental investigations are available for such compounds. More components are needed to fill out the iso-alkane boiling point range. For the aromatic class of compounds, there has been no new work for compounds in the boiling point range of diesel. Most of the new work has been on alkyl aromatics that are of the range C7 to C8, below the C10 to C20 range that is needed. For the chemical class of cycloalkanes, experiments and modeling on higher molecular weight components are warranted. Finally for multi-component surrogates needed to treat real diesel

  14. Alternative Fuels Data Center: Status Update: New Mid-Level Ethanol Blends

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Certification Path, UL Meeting, and Mid-Level Blends Testing (August 2009) New Mid-Level Ethanol Blends Certification Path, UL Meeting, and Mid-Level Blends Testing (August 2009) to someone by E-mail Share Alternative Fuels Data Center: Status Update: New Mid-Level Ethanol Blends Certification Path, UL Meeting, and Mid-Level Blends Testing (August 2009) on Facebook Tweet about Alternative Fuels Data Center: Status Update: New Mid-Level Ethanol Blends Certification Path, UL Meeting, and

  15. Novel injector techniques for coal-fueled diesel engines

    SciTech Connect (OSTI)

    Badgley, P.R.

    1992-09-01

    This report, entitled Novel Injector Techniques for Coal-Fueled Diesel Engines,'' describes the progress and findings of a research program aimed at development of a dry coal powder fuel injector in conjunction with the Thermal Ignition Combustion System (TICS) concept to achieve autoignition of dry powdered coal in a single-cylinder high speed diesel engine. The basic program consisted of concept selection, analysis and design, bench testing and single cylinder engine testing. The coal injector concept which was selected was a one moving part dry-coal-powder injector utilizing air blast injection. Adiabatics has had previous experience running high speed diesel engines on both direct injected directed coal-water-slurry (CWS) fuel and also with dry coal powder aspirated into the intake air. The Thermal Ignition Combustion System successfully ignited these fuels at all speeds and loads without requiring auxiliary ignition energy such as pilot diesel fuel, heated intake air or glow or spark plugs. Based upon this prior experience, it was shown that the highest efficiency and fastest combustion was with the dry coal, but that the use of aspiration of coal resulted in excessive coal migration into the engine lubrication system. Based upon a desire of DOE to utilize a more modern test engine, the previous naturally-aspirated Caterpillar model 1Y73 single cylinder engine was replaced with a turbocharged (by use of shop air compressor and back pressure control valve) single cylinder version of the Cummins model 855 engine.

  16. Miscible, multi-component, diesel fuels and methods of bio-oil transformation

    DOE Patents [OSTI]

    Adams, Thomas; Garcia, Manuel; Geller, Dan; Goodrum, John W.; Pendergrass, Joshua T.

    2010-10-26

    Briefly described, embodiments of this disclosure include methods of recovering bio-oil products, fuels, diesel fuels, and the like are disclosed.

  17. Renewable Diesel Fuels: Status of Technology and R&D Needs |...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (298.95 KB) More Documents & Publications New Diesel Feedstocks and Future Fuels Return Condensate to the Boiler BiodieselFuelManagementBestPracticesReport.pdf

  18. U.S. diesel fuel price hits 2014 low

    U.S. Energy Information Administration (EIA) Indexed Site

    hits 2014 low The U.S. average retail price for on-highway diesel fuel has fallen to its lowest level so far in 2014 at 3.86 a gallon on Monday. That's down 1.1 cents from a ...

  19. Hydrogen as a Supplemental Fuel in Diesel Engines | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    as a Supplemental Fuel in Diesel Engines Hydrogen as a Supplemental Fuel in Diesel Engines Poster presentation from the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). deer07_bika.pdf (177.65 KB) More Documents & Publications Fuels of the Future for Cars and Trucks Renewable Diesel Vehicle Technologies Office:

  20. Fuel effects on flame lift-off under diesel conditions

    SciTech Connect (OSTI)

    Persson, Helena; Andersson, Oeivind; Egnell, Rolf

    2011-01-15

    An apparent relation between the lift-off length under diesel conditions and the ignition quality of a fuel has previously been reported. To cast light on the underlying mechanism, the current study aims to separate flame lift-off effects of the chemical ignition delay from those of other fuel properties under diesel conditions. Flame lift-off was measured in an optical diesel engine by high-speed video imaging of OH-chemiluminescence. Fuel and ambient-gas properties were varied during the experiment. Only a weak correlation was found between ignition delay and lift-off length. The data indicate that this correlation is due to a common, stronger correlation with the ambient oxygen concentration. The chemical ignition delay and the fuel type had similar, weak effects on the lift-off length. A recently proposed mechanism for lift-off stabilization was used to interpret the results. It assumes that reactants approaching the lift-off position of the jet are mixed with high-temperature products found along the edges of the flame, which trigger autoignition. In this picture, the fuel effect is most likely due to differences in the amount of mixing with high-temperature products that is required for autoignition. In the current experiment, all lift-off effects seem to arise from variations in the reactant and product temperatures, induced by fuel and ambient properties. (author)

  1. Chemical Kinetic Research on HCCI & Diesel Fuels

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  2. Chemical Kinetic Research on HCCI & Diesel Fuels

    Broader source: Energy.gov [DOE]

    2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

  3. Chemical Kinetic Research on HCCI & Diesel Fuels

    Broader source: Energy.gov [DOE]

    2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  4. Advanced Petroleum-Based Fuels -- Diesel Emissions Control Project (APBF-DEC)

    SciTech Connect (OSTI)

    Not Available

    2003-03-01

    Annual progress report of the Advanced Petroleum-based fuels-Diesel Emissions Control Project. Contains information on 5 test projects to determine the best combinations of low-sulfur diesel fuels, lubricants, diesel engines, and emission control systems to meet projected emissions standards.

  5. Application of a Diesel Fuel Reformer for Tier 2 Bin 5 Emissions |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_bonadies.pdf (1.07 MB) More Documents & Publications Application of a Diesel Fuel Reformer for Tier 2 Bin 5 Emissions Delphi On-board Ammonia Generation (OAG) On-Board Ammonia Generation Using Delphi Diesel Fuel Reformer

  6. Fact #555: January 26, 2009 Transit Buses are Relying Less on Diesel Fuel |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 5: January 26, 2009 Transit Buses are Relying Less on Diesel Fuel Fact #555: January 26, 2009 Transit Buses are Relying Less on Diesel Fuel In 1995, over 95% of the fuel used in transit buses was diesel. In 2006, diesel fuel constituted just under 75% of the fuel used by transit buses while other fuel types such as compressed natural gas (CNG) and liquefied natural gas (LNG) have become much more prevalent. The use of CNG in buses has grown from less than 2% in 1995 to

  7. Fact #650: November 22, 2010 Diesel Fuel Prices hit a Two-Year High |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 50: November 22, 2010 Diesel Fuel Prices hit a Two-Year High Fact #650: November 22, 2010 Diesel Fuel Prices hit a Two-Year High According to the Energy Information Administration's weekly fuel price data, the price of highway diesel fuel on the week of November 17, 2010, reached a 2-year high of $3.18 per gallon. Back in 2008, the prices for gasoline and diesel fuel rose to record levels in mid-summer, but plummeted by about 50% before the end of the year. Though fuel

  8. Effect of Alternative Fuels on Soot Properties and Regeneration of Diesel

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Particulate Filters | Department of Energy Alternative Fuels on Soot Properties and Regeneration of Diesel Particulate Filters Effect of Alternative Fuels on Soot Properties and Regeneration of Diesel Particulate Filters 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_song.pdf (2.06 MB) More Documents & Publications Impact of EGR on Soot Nanostructure and Reactivity Fuel Impacts on Soot Nanostructure and Reactivity Fuel Formulation Effects on

  9. Experimental Investigation of Fuel-Reactivity Controlled Compression Ignition (RCCI) Combustion Mode in a Multi-Cylinder, Light-Duty Diesel Engine

    SciTech Connect (OSTI)

    Cho, Kukwon; Curran, Scott; Prikhodko, Vitaly Y; Sluder, Scott; Parks, II, James E; Wagner, Robert M

    2011-01-01

    An experimental study was performed to provide the combustion and emission characteristics resulting from fuel-reactivity controlled compression ignition (RCCI) combustion mode utilizing dual-fuel approach in a light-duty, multi-cylinder diesel engine. In-cylinder fuel blending using port fuel injection of gasoline before intake valve opening (IVO) and early-cycle, direct injection of diesel fuel was used as the charge preparation and fuel blending strategy. In order to achieve the desired auto-ignition quality through the stratification of the fuel-air equivalence ratio ( ), blends of commercially available gasoline and diesel fuel were used. Engine experiments were performed at an engine speed of 2300rpm and an engine load of 4.3bar brake mean effective pressure (BMEP). It was found that significant reduction in both nitrogen oxide (NOx) and particulate matter (PM) was realized successfully through the RCCI combustion mode even without applying exhaust gas recirculation (EGR). However, high carbon monoxide (CO) and hydrocarbon (HC) emissions were observed. The low combustion gas temperature during the expansion and exhaust processes seemed to be the dominant source of high CO emissions in the RCCI combustion mode. The high HC emissions during the RCCI combustion mode could be due to the increased combustion quenching layer thickness as well as the -stratification at the periphery of the combustion chamber. The slightly higher brake thermal efficiency (BTE) of the RCCI combustion mode was observed than the other combustion modes, such as the conventional diesel combustion (CDC) mode, and single-fuel, premixed charge compression ignition (PCCI) combustion mode. The parametric study of the RCCI combustion mode revealed that the combustion phasing and/or the peak cylinder pressure rise rate of the RCCI combustion mode could be controlled by several physical parameters premixed ratio (rp), intake swirl intensity, and start of injection (SOI) timing of directly

  10. Kinetic Model Development for the Combustion of Particulate Matter from Conventional and Soy Methyl Ester Diesel Fuels

    SciTech Connect (OSTI)

    Strzelec, Andrea

    2009-12-01

    The primary objective of this research has been to investigate how the oxidation characteristics of diesel particulate matter (PM) are affected by blending soy-based biodiesel fuel with conventional ultra low sulfur diesel (ULSD) fuel. PM produced in a light duty engine from different biodiesel-conventional fuel blends was subjected to a range of physical and chemical measurements in order to better understand the mechanisms by which fuel-related changes to oxidation reactivity are brought about. These observations were then incorporated into a kinetic model to predict PM oxidation. Nanostructure of the fixed carbon was investigated by HR-TEM and showed that particulates from biodiesel had a more open structure than particulates generated from conventional diesel fuel, which was confirmed by BET surface area measurements. Surface area evolution with extent of oxidation reaction was measured for PM from ULSD and biodiesel. Biodiesel particulate has a significantly larger surface area for the first 40% of conversion, at which point the samples become quite similar. Oxidation characteristics of nascent PM and the fixed carbon portion were measured by temperature programmed oxidation (TPO) and it was noted that increased biodiesel blending lowered the light-off temperature as well as the temperature where the peak rate of oxidation occurred. A shift in the oxidation profiles of all fuels was seen when the mobile carbon fraction was removed, leaving only the fixed carbon, however the trend in temperature advantage of the biofuel blending remained. The mobile carbon fraction was measured by temperature programmed desorption found to generally increase with increasing biodiesel blend level. The relative change in the light-off temperatures for the nascent and fixed carbon samples was found to be related to the fraction of mobile carbon. Effective Arrhenius parameters for fixed carbon oxidation were directly measured with isothermal, differential oxidation experiments

  11. Chemical Kinetic Research on HCCI & Diesel Fuels

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Laboratory Chemical Kinetic Research on HCCI & Diesel Fuels William J. Pitz (PI), Charles K. Westbrook, Marco Mehl, M. Lee Davisson Lawrence Livermore National Laboratory May 12, 2009 DOE National Laboratory Advanced Combustion Engine R&D Merit Review and Peer Evaluation Washington, DC This presentation does not contain any proprietary or confidential information This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under

  12. Fabrication of small-orifice fuel injectors for diesel engines.

    SciTech Connect (OSTI)

    Woodford, J. B.; Fenske, G. R.

    2005-04-08

    Diesel fuel injector nozzles with spray hole diameters of 50-75 {micro}m have been fabricated via electroless nickel plating of conventionally made nozzles. Thick layers of nickel are deposited onto the orifice interior surfaces, reducing the diameter from {approx}200 {micro}m to the target diameter. The nickel plate is hard, smooth, and adherent, and covers the orifice interior surfaces uniformly.

  13. Coal-fueled diesels for modular power generation

    SciTech Connect (OSTI)

    Wilson, R.P.; Rao, A.K.; Smith, W.C.

    1993-11-01

    Interest in coal-fueled heat engines revived after the sharp increase in the prices of natural gas and petroleum in the 1970`s. Based on the success of micronized coal water slurry combustion tests in an engine in the 1980`s, Morgantown Energy Technology Center (METC) of the US Department of Energy. initiated several programs for the development of advanced coal-fueled diesel and gas turbine engines for use in cogeneration, small utilities, industrial applications and transportation. Cooper-Bessemer and Arthur D. Little have been developing technology since 1985, under the sponsor of METC, to enable coal water slurry (CWS) to be utilized in large bore, medium-speed diesel engines. Modular power generation applications in the 10--100 MW size (each plant typically using from two to eight engines) are the target applications for the late 1990`s and beyond when, according to the US DOE and other projections, oil and natural gas prices are expected to escalate much more rapidly compared to the price of coal. As part of this program over 7.50 hours of prototype engine operation has been achieved on coal water slurry (CWS), including over 100 hours operation of a six-cylinder full scale engine with Integrated Emissions Control System in 1993. In this paper, the authors described the project cost of the CWS fuel used, the heat rate of the engine operating on CWS, the projected maintenance cost for various engine components, and the demonstrated low emissions characteristics of the coal diesel system.

  14. INVESTIGATION ON THE FLAME EXTINCTION LIMIT OF FUEL BLENDS

    SciTech Connect (OSTI)

    Ahsan R. Choudhuri

    2005-02-01

    Lean flame extinction limits of binary fuel mixtures of methane (CH{sub 4}), propane (C{sub 3}H{sub 8}), and ethane (C{sub 2}H{sub 6}) were measured using a twin-flame counter-flow burner. Experiments were conducted to generate an extinction equivalence ratio vs. global stretch rate plot and an extrapolation method was used to calculate the equivalence ratio corresponding to an experimentally unattainable zero-stretch condition. The foregoing gases were selected because they are the primary constitutes of natural gas, which is the primary focus of the present study. To validate the experimental setup and methodology, the flame extinction limit of pure fuels at zero stretch conditions were also estimated and compared with published values. The lean flame extinction limits of methane (f{sub ext} = 4.6%) and propane (f{sub ext} = 2.25%) flames measured in the present study agreed with the values reported in the literature. It was observed that the flame extinction limit of fuel blends have a polynomial relation with the concentration of component fuels in the mixture. This behavior contradicts with the commonly used linear Le Chatelier's approximation. The experimentally determined polynomial relations between the flame extinction limits of fuel blends (i.e. methane-propane and methane-ethane) and methane concentration are as follows: (1) Methane-Propane--%f{sub ext} = (1.05 x 10{sup -9}) f{sup 5}-(1.3644 x 10{sup -7}) f{sup 4}+(6.40299 x 10{sup -6}) f{sup 3}-(1.2108459 x 10{sup -4}) f{sup 2}+(2.87305329 x 10{sup -3}) f+2.2483; (2) Methane-Ethane--%f{sub ext} = (2.1 x 10{sup -9})f{sup 5}-(3.5752 x 10{sup -7}) f{sup 4}+(2.095425 x 10{sup -5}) f{sup 3}-(5.037353 x 10{sup -4}) f{sup 2} + 6.08980409 f + 2.8923. Where f{sub ext} is the extinction limits of methane-propane and methane-ethane fuel blends, and f is the concentration (% volume) of methane in the fuel mixture. The relations were obtained by fitting fifth order curve (polynomial regression) to experimentally

  15. Detailed chemical kinetic mechanism for the oxidation of biodiesel fuels blend surrogate

    SciTech Connect (OSTI)

    Herbinet, Olivier; Pitz, William J.; Westbrook, Charles K.

    2010-05-15

    Detailed chemical kinetic mechanisms were developed and used to study the oxidation of two large unsaturated esters: methyl-5-decenoate and methyl-9-decenoate. These models were built from a previous methyl decanoate mechanism and were compared with rapeseed oil methyl esters oxidation experiments in a jet-stirred reactor. A comparative study of the reactivity of these three oxygenated compounds was performed and the differences in the distribution of the products of the reaction were highlighted showing the influence of the presence and the position of a double bond in the chain. Blend surrogates, containing methyl decanoate, methyl-5-decenoate, methyl-9-decenoate and n-alkanes, were tested against rapeseed oil methyl esters and methyl palmitate/n-decane experiments. These surrogate models are realistic kinetic tools allowing the study of the combustion of biodiesel fuels in diesel and homogeneous charge compression ignition engines. (author)

  16. Detailed chemical kinetic mechanism for the oxidation of biodiesel fuels blend surrogate.

    SciTech Connect (OSTI)

    Herbinet, O; Pitz, W J; Westbrook, C K

    2009-07-21

    Detailed chemical kinetic mechanisms were developed and used to study the oxidation of two large unsaturated esters: methyl-5-decenoate and methyl-9-decenoate. These models were built from a previous methyl decanoate mechanism and were compared with rapeseed oil methyl esters oxidation experiments in a jet stirred reactor. A comparative study of the reactivity of these three oxygenated compounds was performed and the differences in the distribution of the products of the reaction were highlighted showing the influence of the presence and the position of a double bond in the chain. Blend surrogates, containing methyl decanoate, methyl-5-decenoate, methyl-9-decenoate and n-alkanes, were tested against rapeseed oil methyl esters and methyl palmitate/n-decane experiments. These surrogate models are realistic kinetic tools allowing the study of the combustion of biodiesel fuels in diesel and homogeneous charge compression ignition engines.

  17. Verification of Shell GTL Fuel as CARB Alternative Diesel | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Verification of Shell GTL Fuel as CARB Alternative Diesel Verification of Shell GTL Fuel as CARB Alternative Diesel Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). deer07_dahlstrom.pdf (684.84 KB) More Documents & Publications Rigorous HDD Emissions Capabilities of Shell GTL Fuel

  18. Advanced Research in Diesel Fuel Sprays Using X-rays from the Advanced

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Photon Source | Department of Energy Research in Diesel Fuel Sprays Using X-rays from the Advanced Photon Source Advanced Research in Diesel Fuel Sprays Using X-rays from the Advanced Photon Source 2003 DEER Conference Presentation: Argonne National Laboratory 2003_deer_powell.pdf (925.28 KB) More Documents & Publications Vehicle Technologies Office Merit Review 2014: Fuel Injection and Spray Research Using X-Ray Diagnostics X-Ray Characterization of Diesel Sprays and the Effects of

  19. Chemical Kinetic Research on HCCI & Diesel Fuels | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Chemical Kinetic Research on HCCI & Diesel Fuels Chemical Kinetic Research on HCCI & Diesel Fuels 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. ace_13_pitz.pdf (1.42 MB) More Documents & Publications Multidimensional simulation and chemical kinetics development for high efficiency clean combustion engines Chemical Kinetic Research on HCCI & Diesel Fuels Vehicle Technologies Office

  20. Use of a Diesel Fuel Processor for Rapid and Efficient Regeneration...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Efficient Regeneration of Single Leg NOx Adsorber Systems Use of a Diesel Fuel Processor for Rapid and Efficient Regeneration of Single Leg NOx Adsorber Systems 2003 DEER ...

  1. Table 16. U.S. No. 2 Diesel Fuel Prices by Sales Type

    Gasoline and Diesel Fuel Update (EIA)

    "Resellers'Retailers' Monthly Petroleum Product Sales Report." 16. U.S. No. 2 Diesel Fuel Prices by Sales Type 30 Energy Information Administration Petroleum Marketing Annual...

  2. Table 40. No. 2 Diesel Fuel Prices by Sales Type, PAD District...

    U.S. Energy Information Administration (EIA) Indexed Site

    Type, PAD District, and Selected States Energy Information Administration Petroleum Marketing Annual 1996 233 Table 40. No. 2 Diesel Fuel Prices by Sales Type, PAD District,...

  3. Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    Content, Sales Type, and PAD District 242 Energy Information Administration Petroleum Marketing Annual 1997 Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales Type,...

  4. Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    Content, Sales Type, and PAD District 242 Energy Information Administration Petroleum Marketing Annual 1996 Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales Type,...

  5. Table 40. No. 2 Diesel Fuel Prices by Sales Type, PAD District...

    U.S. Energy Information Administration (EIA) Indexed Site

    Type, PAD District, and Selected States Energy Information Administration Petroleum Marketing Annual 1997 233 Table 40. No. 2 Diesel Fuel Prices by Sales Type, PAD District,...

  6. Propane-Diesel Dual Fuel for CO2 and Nox Reduction

    Broader source: Energy.gov [DOE]

    Test results show significant CO2 and NOx emission reductions, fuel economy gains, and overall energy savings with propane injection in a diesel engine.

  7. Recovery Act. Solid Oxide Fuel Cell Diesel Auxilliary Power Unit Demonstration

    SciTech Connect (OSTI)

    Geiger, Gail E.

    2013-09-30

    Solid Oxide Fuel Cell Diesel Auxilliary Power Unit Demonstration Project. Summarizing development of Delphi’s next generation SOFC system as the core power plant to prove the viability of the market opportunity for a 3-5 kW diesel SOFC system. Report includes test and demonstration results from testing the diesel APU in a high visibility fleet customer vehicle application.

  8. IMPACT OF DME-DIESEL FUEL BLEND PROPERTIES ON DIESEL FUEL INJECTION...

    Office of Scientific and Technical Information (OSTI)

    development of a high-pressure lubricity test apparatus for studies of lubricity and ... development of a high-pressure lubricity test apparatus for studies of lubricity and ...

  9. Combustion and Emissions Performance of Dual-Fuel Gasoline and Diesel HECC

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    on a Multi-Cylinder Light Duty Diesel Engine | Department of Energy Combustion and Emissions Performance of Dual-Fuel Gasoline and Diesel HECC on a Multi-Cylinder Light Duty Diesel Engine Combustion and Emissions Performance of Dual-Fuel Gasoline and Diesel HECC on a Multi-Cylinder Light Duty Diesel Engine Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. p-06_curran.pdf (416.42 KB) More Documents

  10. Effects of fuel stability upon injection-nozzle deposit formation in road-tested diesel engines

    SciTech Connect (OSTI)

    Fortnagel, M.; Herrbrich, B.

    1985-01-01

    The properties of diesel fuels have changed distinctly, especially in the United States. Fuel-related problems-one of which is the injector-nozzle coking in passenger-car diesel engines-have arisen due to deteriorated fuel qualities. Extended investigations of road-tested diesel engines suggest a link between fuel stability and the coke-deposit mechanism. Stabilizing poor-quality fuels by a chemical-additive package resulted in troublefree operation over extended mileage. Thus fuel stability, which evidently has to be secured at the refinery, shows up as an important property for satisfactory engine operation.