National Library of Energy BETA

Sample records for gasoline complex model

  1. Reformulated Gasoline Complex Model

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

    ... However, nonexhaust benzene emissions data are only available in sufficient quantities under high ozone test conditions. Therefore, nonexhaust benzene emissions are not considered ...

  2. Detailed Kinetic Modeling of Gasoline Surrogate Mixtures

    SciTech Connect (OSTI)

    Mehl, M; Curran, H J; Pitz, W J; Westbrook, C K

    2009-03-09

    Real fuels are complex mixtures of thousands of hydrocarbon compounds including linear and branched paraffins, naphthenes, olefins and aromatics. It is generally agreed that their behavior can be effectively reproduced by simpler fuel surrogates containing a limited number of components. In this work, a recently revised version of the kinetic model by the authors is used to analyze the combustion behavior of several components relevant to gasoline surrogate formulation. Particular attention is devoted to linear and branched saturated hydrocarbons (PRF mixtures), olefins (1-hexene) and aromatics (toluene). Model predictions for pure components, binary mixtures and multi-component gasoline surrogates are compared with recent experimental information collected in rapid compression machine, shock tube and jet stirred reactors covering a wide range of conditions pertinent to internal combustion engines. Simulation results are discussed focusing attention on the mixing effects of the fuel components.

  3. Motor Gasoline Market Model documentation report

    SciTech Connect (OSTI)

    Not Available

    1993-09-01

    The purpose of this report is to define the objectives of the Motor Gasoline Market Model (MGMM), describe its basic approach and to provide detail on model functions. This report is intended as a reference document for model analysts, users, and the general public. The MGMM performs a short-term (6- to 9-month) forecast of demand and price for motor gasoline in the US market; it also calculates end of month stock levels. The model is used to analyze certain market behavior assumptions or shocks and to determine the effect on market price, demand and stock level.

  4. Chemical kinetic modeling of component mixtures relevant to gasoline

    SciTech Connect (OSTI)

    Mehl, M; Curran, H J; Pitz, W J; Westbrook, C K

    2009-02-13

    Real fuels are complex mixtures of thousands of hydrocarbon compounds including linear and branched paraffins, naphthenes, olefins and aromatics. It is generally agreed that their behavior can be effectively reproduced by simpler fuel surrogates containing a limited number of components. In this work, a recently revised version of the kinetic model by the authors is used to analyze the combustion behavior of several components relevant to gasoline surrogate formulation. Particular attention is devoted to linear and branched saturated hydrocarbons (PRF mixtures), olefins (1-hexene) and aromatics (toluene). Model predictions for pure components, binary mixtures and multi-component gasoline surrogates are compared with recent experimental information collected in rapid compression machine, shock tube and jet stirred reactors covering a wide range of conditions pertinent to internal combustion engines. Simulation results are discussed focusing attention on the mixing effects of the fuel components.

  5. Chemical kinetic modeling of component mixtures relevant to gasoline

    SciTech Connect (OSTI)

    Mehl, M; Curran, H J; Pitz, W J; Dooley, S; Westbrook, C K

    2008-05-29

    Detailed kinetic models of pyrolysis and combustion of hydrocarbon fuels are nowadays widely used in the design of internal combustion engines and these models are effectively applied to help meet the increasingly stringent environmental and energetic standards. In previous studies by the combustion community, such models not only contributed to the understanding of pure component combustion, but also provided a deeper insight into the combustion behavior of complex mixtures. One of the major challenges in this field is now the definition and the development of appropriate surrogate models able to mimic the actual features of real fuels. Real fuels are complex mixtures of thousands of hydrocarbon compounds including linear and branched paraffins, naphthenes, olefins and aromatics. Their behavior can be effectively reproduced by simpler fuel surrogates containing a limited number of components. Aside the most commonly used surrogates containing iso-octane and n-heptane only, the so called Primary Reference Fuels (PRF), new mixtures have recently been suggested to extend the reference components in surrogate mixtures to also include alkenes and aromatics. It is generally agreed that, including representative species for all the main classes of hydrocarbons which can be found in real fuels, it is possible to reproduce very effectively in a wide range of operating conditions not just the auto-ignition propensity of gasoline or Diesel fuels, but also their physical properties and their combustion residuals [1]. In this work, the combustion behavior of several components relevant to gasoline surrogate formulation is computationally examined. The attention is focused on the autoignition of iso-octane, hexene and their mixtures. Some important issues relevant to the experimental and modeling investigation of such fuels are discussed with the help of rapid compression machine data and calculations. Following the model validation, the behavior of mixtures is discussed on the basis of computational results.

  6. Modeling and Analysis of Natural Gas and Gasoline In A High Compressio...

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

    and Gasoline In A High Compression Ratio High Efficiency ICRE Modeling and Analysis of Natural Gas and Gasoline In A High Compression Ratio High Efficiency ICRE performance of a ...

  7. Kinetic Modeling of Gasoline Surrogate Components and Mixtures under Engine Conditions

    SciTech Connect (OSTI)

    Mehl, M; Pitz, W J; Westbrook, C K; Curran, H J

    2010-01-11

    Real fuels are complex mixtures of thousands of hydrocarbon compounds including linear and branched paraffins, naphthenes, olefins and aromatics. It is generally agreed that their behavior can be effectively reproduced by simpler fuel surrogates containing a limited number of components. In this work, an improved version of the kinetic model by the authors is used to analyze the combustion behavior of several components relevant to gasoline surrogate formulation. Particular attention is devoted to linear and branched saturated hydrocarbons (PRF mixtures), olefins (1-hexene) and aromatics (toluene). Model predictions for pure components, binary mixtures and multicomponent gasoline surrogates are compared with recent experimental information collected in rapid compression machine, shock tube and jet stirred reactors covering a wide range of conditions pertinent to internal combustion engines (3-50 atm, 650-1200K, stoichiometric fuel/air mixtures). Simulation results are discussed focusing attention on the mixing effects of the fuel components.

  8. Short-Term Energy Outlook Model Documentation: Motor Gasoline Consumption Model

    Reports and Publications (EIA)

    2011-01-01

    The motor gasoline consumption module of the Short-Term Energy Outlook (STEO) model is designed to provide forecasts of total U.S. consumption of motor gasolien based on estimates of vehicle miles traveled and average vehicle fuel economy.

  9. Refiners Switch to RFG Complex Model

    Reports and Publications (EIA)

    1998-01-01

    On January 1, 1998, domestic and foreign refineries and importers must stop using the "simple" model and begin using the "complex" model to calculate emissions of volatile organic compounds (VOC), toxic air pollutants (TAP), and nitrogen oxides (NOx) from motor gasoline. The primary differences between application of the two models is that some refineries may have to meet stricter standards for the sulfur and olefin content of the reformulated gasoline (RFG) they produce and all refineries will now be held accountable for NOx emissions. Requirements for calculating emissions from conventional gasoline under the anti-dumping rule similarly change for exhaust TAP and NOx. However, the change to the complex model is not expected to result in an increase in the price premium for RFG or constrain supplies.

  10. HCCI experiments with gasoline surrogate fuels modeled by a semidetailed chemical kinetic model

    SciTech Connect (OSTI)

    Andrae, J.C.G.; Head, R.A.

    2009-04-15

    Experiments in a homogeneous charge compression ignition (HCCI) engine have been conducted with four gasoline surrogate fuel blends. The pure components in the surrogate fuels consisted of n-heptane, isooctane, toluene, ethanol and diisobutylene and fuel sensitivities (RON-MON) in the fuel blends ranged from two to nine. The operating conditions for the engine were p{sub in}=0.1 and 0.2 MPa, T{sub in}=80 and 250 C, {phi}=0.25 in air and engine speed 1200 rpm. A semidetailed chemical kinetic model (142 species and 672 reactions) for gasoline surrogate fuels, validated against ignition data from experiments conducted in shock tubes for gasoline surrogate fuel blends at 1.0{<=} p{<=}5.0MPa, 700{<=} T{<=}1200 K and {phi}=1.0, was successfully used to qualitatively predict the HCCI experiments using a single zone modeling approach. The fuel blends that had higher fuel sensitivity were more resistant to autoignition for low intake temperature and high intake pressure and less resistant to autoignition for high intake temperature and low intake pressure. A sensitivity analysis shows that at high intake temperature the chemistry of the fuels ethanol, toluene and diisobutylene helps to advance ignition. This is consistent with the trend that fuels with the least Negative Temperature Coefficient (NTC) behavior show the highest octane sensitivity, and become less resistant to autoignition at high intake temperatures. For high intake pressure the sensitivity analysis shows that fuels in the fuel blend with no NTC behavior consume OH radicals and acts as a radical scavenger for the fuels with NTC behavior. This is consistent with the observed trend of an increase in RON and fuel sensitivity. With data from shock tube experiments in the literature and HCCI modeling in this work, a correlation between the reciprocal pressure exponent on the ignition delay to the fuel sensitivity and volume percentage of single-stage ignition fuel in the fuel blend was found. Higher fuel sensitivity and single-stage fuel content generally gives a lower value of the pressure exponent. This helps to explain the results obtained while boosting the intake pressure in the HCCI engine. (author)

  11. Reformulated Gasoline Foreign Refinery Rules

    Gasoline and Diesel Fuel Update (EIA)

    Reformulated Gasoline Foreign Refinery Rules Contents * Introduction o Table 1. History of Foreign Refiner Regulations * Foreign Refinery Baseline * Monitoring Imported Conventional Gasoline * Endnotes Related EIA Short-Term Forecast Analysis Products * Areas Participating in the Reformulated Gasoline Program * Environmental Regulations and Changes in Petroleum Refining Operations * Oxygenate Supply/Demand Balances in the Short-Term Integrated Forecasting Model * Refiners Switch to Reformulated

  12. Detailed Chemical Kinetic Modeling of Surrogate Fuels for Gasoline and Application to an HCCI Engine

    SciTech Connect (OSTI)

    Naik, C V; Pitz, W J; Sj?berg, M; Dec, J E; Orme, J; Curran, H J; Simmie, J M; Westbrook, C K

    2005-01-07

    Gasoline consists of many different classes of hydrocarbons, such as paraffins, olefins, aromatics, and cycloalkanes. In this study, a surrogate gasoline reaction mechanism is developed, and it has one representative fuel constituent from each of these classes. These selected constituents are iso-octane, n-heptane, 1-pentene, toluene, and methyl-cyclohexane. The mechanism was developed in a step-wise fashion, adding submechanisms to treat each fuel component. Reactions important for low temperature oxidation (<1000K) and cross-reactions among different fuels are incorporated into the mechanism. The mechanism consists of 1214 species and 5401 reactions. A single-zone engine model is used to evaluate how well the mechanism captures autoignition behavior for conditions corresponding to homogeneous charge compression ignition (HCCI) engine operation. Experimental data are available for both how the combustion phasing changes with fueling at a constant intake temperature, and also how the intake temperature has to be changed with pressure in order to maintain combustion phasing for a fixed equivalence ratio. Three different surrogate fuel mixtures are used for the modeling. Predictions are in reasonably good agreement with the engine data. In addition, the heat release rate is calculated and compared to the data from experiments. The model predicts less low-temperature heat release than that measured. It is found that the low temperature heat-release rate depends strongly on engine speed, reactions of RO{sub 2}+HO{sub 2}, fuel composition, and pressure boost.

  13. Off-Highway Gasoline Consuption Estimation Models Used in the Federal Highway Administration Attribution Process: 2008 Updates

    SciTech Connect (OSTI)

    Hwang, Ho-Ling; Davis, Stacy Cagle

    2009-12-01

    This report is designed to document the analysis process and estimation models currently used by the Federal Highway Administration (FHWA) to estimate the off-highway gasoline consumption and public sector fuel consumption. An overview of the entire FHWA attribution process is provided along with specifics related to the latest update (2008) on the Off-Highway Gasoline Use Model and the Public Use of Gasoline Model. The Off-Highway Gasoline Use Model is made up of five individual modules, one for each of the off-highway categories: agricultural, industrial and commercial, construction, aviation, and marine. This 2008 update of the off-highway models was the second major update (the first model update was conducted during 2002-2003) after they were originally developed in mid-1990. The agricultural model methodology, specifically, underwent a significant revision because of changes in data availability since 2003. Some revision to the model was necessary due to removal of certain data elements used in the original estimation method. The revised agricultural model also made use of some newly available information, published by the data source agency in recent years. The other model methodologies were not drastically changed, though many data elements were updated to improve the accuracy of these models. Note that components in the Public Use of Gasoline Model were not updated in 2008. A major challenge in updating estimation methods applied by the public-use model is that they would have to rely on significant new data collection efforts. In addition, due to resource limitation, several components of the models (both off-highway and public-us models) that utilized regression modeling approaches were not recalibrated under the 2008 study. An investigation of the Environmental Protection Agency's NONROAD2005 model was also carried out under the 2008 model update. Results generated from the NONROAD2005 model were analyzed, examined, and compared, to the extent that is possible on the overall totals, to the current FHWA estimates. Because NONROAD2005 model was designed for emission estimation purposes (i.e., not for measuring fuel consumption), it covers different equipment populations from those the FHWA models were based on. Thus, a direct comparison generally was not possible in most sectors. As a result, NONROAD2005 data were not used in the 2008 update of the FHWA off-highway models. The quality of fuel use estimates directly affect the data quality in many tables published in the Highway Statistics. Although updates have been made to the Off-Highway Gasoline Use Model and the Public Use Gasoline Model, some challenges remain due to aging model equations and discontinuation of data sources.

  14. Modeling and Analysis of Natural Gas and Gasoline In A High Compression Ratio High Efficiency ICRE

    Broader source: Energy.gov [DOE]

    performance of a high compression ratio (32:1 to 74:1) high efficiency (50 to 60% BTE) ICRE operating on natural gas and gasoline

  15. The potential for low petroleum gasoline

    SciTech Connect (OSTI)

    Hadder, G.R.; Webb, G.M.; Clauson, M.

    1996-06-01

    The Energy Policy Act requires the Secretary of Energy to determine the feasibility of producing sufficient replacement fuels to replace at least 30 percent of the projected consumption of motor fuels by light duty vehicles in the year 2010. The Act also requires the Secretary to determine the greenhouse gas implications of the use of replacement fuels. A replacement fuel is a non-petroleum portion of gasoline, including certain alcohols, ethers, and other components. The Oak Ridge National Laboratory Refinery Yield Model has been used to study the cost and refinery impacts for production of {open_quotes}low petroleum{close_quotes} gasolines, which contain replacement fuels. The analysis suggests that high oxygenation is the key to meeting the replacement fuel target, and a major contributor to cost increase is investment in processes to produce and etherify light olefins. High oxygenation can also increase the costs of control of vapor pressure, distillation properties, and pollutant emissions of gasolines. Year-round low petroleum gasoline with near-30 percent non-petroleum components might be produced with cost increases of 23 to 37 cents per gallon of gasoline, and with greenhouse gas emissions changes between a 3 percent increase and a 16 percent decrease. Crude oil reduction, with decreased dependence on foreign sources, is a major objective of the low petroleum gasoline program. For year-round gasoline with near-30 percent non-petroleum components, crude oil use is reduced by 10 to 12 percent, at a cost $48 to $89 per barrel. Depending upon resolution of uncertainties about extrapolation of the Environmental Protection Agency Complex Model for pollutant emissions, availability of raw materials and other issues, costs could be lower or higher.

  16. Finished Motor Gasoline Net Production

    Gasoline and Diesel Fuel Update (EIA)

    Reformulated Gasoline Blenede w Fuel Ethanol Reformulated Other Gasoline Conventional Gasoline Conventional Gasoline Blended w Fuel Ethanol Conventional Gasoline Blended w Fuel ...

  17. Experimental and Modeling Study of the Flammability of Fuel Tank Headspace Vapors from Ethanol/Gasoline Fuels, Phase 2: Evaluations of Field Samples and Laboratory Blends

    SciTech Connect (OSTI)

    Gardiner, D. P.; Bardon, M. F.; LaViolette, M.

    2010-04-01

    Study to measure the flammability of gasoline/ethanol fuel vapors at low ambient temperatures and develop a mathematical model to predict temperatures at which flammable vapors were likely to form.

  18. U.S. Motor Gasoline Prices

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

    Formulation Grade: Gasoline, Average Regular Gasoline Midgrade Gasoline Premium Gasoline Conventional, Average Conventional Regular Conventional Midgrade Conventional Premium ...

  19. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline Price Data Collection Procedures Every Monday, retail prices for all three grades of gasoline are collected by telephone from a sample of approximately 800 retail gasoline ...

  20. Gasoline Biodesulfurization Fact Sheet

    Broader source: Energy.gov [DOE]

    This petroleum industry fact sheet describes how biodesulfurization can yield lower sulfur gasoline at lower production costs.

  1. Gasoline and Diesel Fuel Update

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

    February 16, 2016 Reformulated Gasoline States in each PADD Region Procedures & Methodology Gasoline Data collection procedures Sampling methodology Coefficient of variation...

  2. Experimental and Modeling Study of the Flammability of Fuel Tank Headspace Vapors from Ethanol/Gasoline Fuels; Phase 3: Effects of Winter Gasoline Volatility and Ethanol Content on Blend Flammability; Flammability Limits of Denatured Ethanol

    SciTech Connect (OSTI)

    Gardiner, D. P.; Bardon, M. F.; Clark, W.

    2011-07-01

    This study assessed differences in headspace flammability for summertime gasolines and new high-ethanol content fuel blends. The results apply to vehicle fuel tanks and underground storage tanks. Ambient temperature and fuel formulation effects on headspace vapor flammability of ethanol/gasoline blends were evaluated. Depending on the degree of tank filling, fuel type, and ambient temperature, fuel vapors in a tank can be flammable or non-flammable. Pure gasoline vapors in tanks generally are too rich to be flammable unless ambient temperatures are extremely low. High percentages of ethanol blended with gasoline can be less volatile than pure gasoline and can produce flammable headspace vapors at common ambient temperatures. The study supports refinements of fuel ethanol volatility specifications and shows potential consequences of using noncompliant fuels. E85 is flammable at low temperatures; denatured ethanol is flammable at warmer temperatures. If both are stored at the same location, one or both of the tanks' headspace vapors will be flammable over a wide range of ambient temperatures. This is relevant to allowing consumers to splash -blend ethanol and gasoline at fueling stations. Fuels compliant with ASTM volatility specifications are relatively safe, but the E85 samples tested indicate that some ethanol fuels may produce flammable vapors.

  3. Motor gasolines, summer 1985

    SciTech Connect (OSTI)

    Dickson, C.L.; Woodward, P.W.

    1986-06-01

    Samples for this report were collected from service stations throughout the country and were analyzed in laboratories of various refiners, motor manufacturers, chemical companies, and research institutes. Analytical data for the 1571 motor gasoline and 206 motor gasoline/alcohol blend samples were submitted to the National Institute for Petroleum and Energy Research (NIPER), Bartlesville, Oklahoma, for reporting. This work is jointly funded by the American Petroleum Institute (API) and the United States Department of Energy (DOE), Bartlesville Project Office (DOE cooperative agreement No. FC22-83FE60149). The data are representative of the products of 62 marketers, large and small, which manufacture and supply gasoline. They are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map shows the marketing areas, districts, and sampling locations. The report includes trend charts of selected properties of motor fuels over the last twenty-five years. Twelve octane distribution graphs for leaded and unleaded grades of gasoline are presented for areas 1, 2, 3, and 4. The average antiknock (octane) index (R + M)/2 of gasoline sold in the United States during June, July, and August 1985 was 87.4 for unleaded below 90.0, 91.7 for unleaded 90.0 and above, and 88.8 for leaded below 93.0 grades of gasoline. Analyses of motor gasoline containing various alcohols are reported in separate tables beginning with this report. The average antiknock (octane) index (R + M)/2 of gasoline containing alcohols was 88.6 for unleaded below 90.0, 91.4 for unleaded 90.0 and above, and 90.2 for leaded below 93.0 grades of gasoline. 16 figs., 8 tabs.

  4. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Detailed Price and CV Report Motor Gasoline Prices & Coefficients of Variation Spreadsheet

  5. Northeast Gasoline Supply Reserve

    Broader source: Energy.gov [DOE]

    The Northeast region of the U.S. is particularly vulnerable to gasoline disruptions as a result of hurricanes and other natural events. Hurricane Sandy in 2012 caused widespread issues related to...

  6. Gasoline from Wood via Integrated Gasification, Synthesis, and Methanol-to-Gasoline Technologies

    SciTech Connect (OSTI)

    Phillips, S. D.; Tarud, J. K.; Biddy, M. J.; Dutta, A.

    2011-01-01

    This report documents the National Renewable Energy Laboratory's (NREL's) assessment of the feasibility of making gasoline via the methanol-to-gasoline route using syngas from a 2,000 dry metric tonne/day (2,205 U.S. ton/day) biomass-fed facility. A new technoeconomic model was developed in Aspen Plus for this study, based on the model developed for NREL's thermochemical ethanol design report (Phillips et al. 2007). The necessary process changes were incorporated into a biomass-to-gasoline model using a methanol synthesis operation followed by conversion, upgrading, and finishing to gasoline. Using a methodology similar to that used in previous NREL design reports and a feedstock cost of $50.70/dry ton ($55.89/dry metric tonne), the estimated plant gate price is $16.60/MMBtu ($15.73/GJ) (U.S. $2007) for gasoline and liquefied petroleum gas (LPG) produced from biomass via gasification of wood, methanol synthesis, and the methanol-to-gasoline process. The corresponding unit prices for gasoline and LPG are $1.95/gallon ($0.52/liter) and $1.53/gallon ($0.40/liter) with yields of 55.1 and 9.3 gallons per U.S. ton of dry biomass (229.9 and 38.8 liters per metric tonne of dry biomass), respectively.

  7. Price of Motor Gasoline Through Retail Outlets

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

    & Stocks by State (Dollars per Gallon Excluding Taxes) Data Series: Retail Price - Motor Gasoline Retail Price - Regular Gasoline Retail Price - Midgrade Gasoline Retail Price...

  8. Note on the structural stability of gasoline demand and the welfare economics of gasoline taxation

    SciTech Connect (OSTI)

    Kwast, M.L.

    1980-04-01

    A partial adjustment model is used to investigate how the 1973 to 1974 oil embargo affected the structural stability of gasoline demand and to compute the welfare effects of higher gasoline taxes. A variety of statistical tests are used to demonstrate the structural stability of gasoline demand in spite of higher prices. A case study demonstrates only modest price elasticity in response to increased taxes. Higher excise taxes are felt to be justified, however, as an efficient source of revenue even though their effect on demand is limited. 17 references, 4 tables. (DCK)

  9. Motor gasolines, summer 1983

    SciTech Connect (OSTI)

    Shelton, E.M.

    1984-02-01

    The samples were collected from service stations throughout the country and were analyzed in the laboratories of various refiners, motor manufacturers, chemical companies, and research institutes. The analytical data for 1583 samples of motor gasoline, were submitted to the National Institute for Petroleum and Energy Research, Bartlesville, Oklahoma for study, necessary calculations, and compilation under a cooperative agreement between the National Institute for Petroleum and Energy Research (NIPER) and the American Petroleum Institute (API). They represent the products of 48 companies, large and small, which manufacture and supply gasoline. These data are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map included in this report, shows marketing areas, districts and sampling locations. The report also includes charts indicating the trends of selected properties of motor fuels since 1959. Sixteen octane distribution percent charts for areas 1, 2, 3, and 4 for unleaded antiknock index (R+M)/2 below 90.0, unleaded antiknock index (R+M)/2 90.0 and above, and leaded antiknock index (R+M)/2 below 93.0 grades of gasoline are presented in this report. The antiknock (octane) index (R+M)/2 averages of gasoline sold in this country were 87.5 for unleaded below 90.0, 91.4 for unleaded 90.0 and above, and 89.0 for leaded below 93.0 grades of gasoline. 16 figures, 5 tables.

  10. Motor gasolines, Summer 1982

    SciTech Connect (OSTI)

    Shelton, E.M.

    1983-03-01

    The samples were collected from service stations throughout the country and were analyzed in the laboratories of various refiners, motor manufacturers, and chemical companies. The analytical data for 796 samples of motor gasoline, were submitted to the Bartlesville Energy Technology Center for study, necessary calculations, and compilation under a cooperative agreement between the Bartlesville Energy Technology Center (BETC) and the American Petroleum Institute (API). They represent the products of 22 companies, large and small, which manufacture and supply gasoline. These data are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map included in this report, shows marketing areas, districts and sampling locations. The report also includes charts indicating the trends of selected properties of motor fuels since 1959. Sixteen octane distribution percent charts for areas 1, 2, 3, and 4 for unleaded antiknock index (R + M)/2 below 90.0, unleaded antiknock index (R + M)/2 90.0 and above, leaded antiknock index (R + M)/2 below 93.0, and leaded antiknock index (R + M)/2 93.0 and above grades of gasoline are presented in this report. The antiknock (octane) index (R + M)/2 averages of gasoline sold in this country were 87.3 for unleaded below 90.0, 91.7 for unleaded 90.0 and above, 89.0 for leaded below 93.0, and no data in this report for 93.0 and above grades of leaded gasoline.

  11. Gasoline prices increase (short version)

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

    gasoline prices increase (short version) The U.S. average retail price for regular gasoline rose to 3.69 a gallon on Monday. That's up 1.2 cents from a week ago, based on the ...

  12. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

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

    Vehicle Technologies Office Merit Review 2014: Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine Development Advanced Gasoline Turbocharged Direct Injection (GTDI) ...

  13. Price changes in the gasoline market: Are Midwestern gasoline prices downward sticky?

    SciTech Connect (OSTI)

    1999-03-01

    This report examines a recurring question about gasoline markets: why, especially in times of high price volatility, do retail gasoline prices seem to rise quickly but fall back more slowly? Do gasoline prices actually rise faster than they fall, or does this just appear to be the case because people tend to pay more attention to prices when they`re rising? This question is more complex than it might appear to be initially, and it has been addressed by numerous analysts in government, academia and industry. The question is very important, because perceived problems with retail gasoline pricing have been used in arguments for government regulation of prices. The phenomenon of prices at different market levels tending to move differently relative to each other depending on direction is known as price asymmetry. This report summarizes the previous work on gasoline price asymmetry and provides a method for testing for asymmetry in a wide variety of situations. The major finding of this paper is that there is some amount of asymmetry and pattern asymmetry, especially at the retail level, in the Midwestern states that are the focus of the analysis. Nevertheless, both the amount asymmetry and pattern asymmetry are relatively small. In addition, much of the pattern asymmetry detected in this and previous studies could be a statistical artifact caused by the time lags between price changes at different points in the gasoline distribution system. In other words, retail gasoline prices do sometimes rise faster than they fall, but this is largely a lagged market response to an upward shock in the underlying wholesale gasoline or crude oil prices, followed by a return toward the previous baseline. After consistent time lags are factored out, most apparent asymmetry disappears.

  14. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline Sampling Methodology The sample for the Motor Gasoline Price Survey was drawn from a frame of approximately 115,000 retail gasoline outlets. The gasoline outlet frame was constructed by combining information purchased from a private commercial source with information contained on existing EIA petroleum product frames and surveys. Outlet names, and zip codes were obtained from the private commercial data source. Additional information was obtained directly from companies selling retail

  15. Ethanol Demand in United States Gasoline Production

    SciTech Connect (OSTI)

    Hadder, G.R.

    1998-11-24

    The Oak Ridge National Laboratory (OWL) Refinery Yield Model (RYM) has been used to estimate the demand for ethanol in U.S. gasoline production in year 2010. Study cases examine ethanol demand with variations in world oil price, cost of competing oxygenate, ethanol value, and gasoline specifications. For combined-regions outside California summer ethanol demand is dominated by conventional gasoline (CG) because the premised share of reformulated gasoline (RFG) production is relatively low and because CG offers greater flexibility for blending high vapor pressure components like ethanol. Vapor pressure advantages disappear for winter CG, but total ethanol used in winter RFG remains low because of the low RFG production share. In California, relatively less ethanol is used in CG because the RFG production share is very high. During the winter in California, there is a significant increase in use of ethanol in RFG, as ethanol displaces lower-vapor-pressure ethers. Estimated U.S. ethanol demand is a function of the refiner value of ethanol. For example, ethanol demand for reference conditions in year 2010 is 2 billion gallons per year (BGY) at a refiner value of $1.00 per gallon (1996 dollars), and 9 BGY at a refiner value of $0.60 per gallon. Ethanol demand could be increased with higher oil prices, or by changes in gasoline specifications for oxygen content, sulfur content, emissions of volatile organic compounds (VOCS), and octane numbers.

  16. Motor gasoline assessment, Spring 1997

    SciTech Connect (OSTI)

    1997-07-01

    The springs of 1996 and 1997 provide an excellent example of contrasting gasoline market dynamics. In spring 1996, tightening crude oil markets pushed up gasoline prices sharply, adding to the normal seasonal gasoline price increases; however, in spring 1997, crude oil markets loosened and crude oil prices fell, bringing gasoline prices down. This pattern was followed throughout the country except in California. As a result of its unique reformulated gasoline, California prices began to vary significantly from the rest of the country in 1996 and continued to exhibit distinct variations in 1997. In addition to the price contrasts between 1996 and 1997, changes occurred in the way in which gasoline markets were supplied. Low stocks, high refinery utilizations, and high imports persisted through 1996 into summer 1997, but these factors seem to have had little impact on gasoline price spreads relative to average spread.

  17. Prices of Refiner Motor Gasoline Sales to End Users

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

    Product/ Sales Type: Gasoline, All Grades - Sales to End Users (U.S. only) Gasoline, All Grades - Through Retail Outlets Gasoline, All Grades - Other End Users Gasoline, All Grades - Sales for Resale Gasoline, All Grades - DTW (U.S. only) Gasoline, All Grades - Rack (U.S. only) Gasoline, All Grades - Bulk (U.S. only) Regular Gasoline - Sales to End Users (U.S. only) Regular Gasoline - Through Retail Outlets Regular Gasoline - Other End Users Regular Gasoline - Sales for Resale Regular Gasoline -

  18. EIS-0039: Motor Gasoline Deregulation and the Gasoline Tilt

    Broader source: Energy.gov [DOE]

    The Economic Regulatory Administration developed this EIS to evaluate the environmental impacts, including social and economic impacts, that may result from either of two proposed regulatory changes: (1) the exemption of motor gasoline from the Department of Energy's Mandatory Petroleum Price and Allocation Regulations, and (2) the adoption of the gasoline tilt, a proposed regulation that would allow refiners to recover an additional amount of their total increased costs on gasoline.

  19. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Methodology For Gasoline and Diesel Fuel Pump Components The components for the gasoline and diesel fuel pumps are calculated in the following manner in cents per gallon and then converted into a percentage: Crude Oil - the monthly average of the composite refiner acquisition cost, which is the average price of crude oil purchased by refiners. Refining Costs & Profits - the difference between the monthly average of the spot price of gasoline or diesel fuel (used as a proxy for the value of

  20. Motor Gasoline Assessment, Spring 1997

    Reports and Publications (EIA)

    1997-01-01

    Analyzes the factors causing the run up of motor gasoline prices during spring 1996 and the different market conditions during spring 1997 that caused prices to decline.

  1. California Gasoline Price Study, 2003

    Reports and Publications (EIA)

    2003-01-01

    This is the final report to Congressman Ose describing the factors driving California's spring 2003 gasoline price spike and the subsequent price increases in June and August.

  2. Forecasting the oil-gasoline price relationship: should we care...

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

    (2007, EE) obtain similar results on a panel of 15 OECD countries, with annual data ... Results Point forecasts of the N.Y. gasoline price 26 Panel (a): daily data Model MSFE ...

  3. Gasoline prices decrease (short version)

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

    Gasoline prices decrease (short version) The U.S. average retail price for regular gasoline fell to $3.68 a gallon on Monday. That's down 2.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  4. Gasoline prices decrease (short version)

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

    Gasoline prices decrease (short version) The U.S. average retail price for regular gasoline fell to $3.67 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.

  5. Topsoe integrated gasoline synthesis (TIGAS)

    SciTech Connect (OSTI)

    Hansen, H.K.; Joensen, F.

    1987-01-01

    Integration of Haldor Topsoe's oxygenate (MeOH, DME) synthesis and the MTG process into one single synthesis loop provides a new low investment route to gasoline from natural gas. The integrated process has been demonstrated in an industrial pilot with a capacity of 1 MTPD gasoline since 1984. The pilot has operated successfully for more than 10,000 hours.

  6. A Comparison of HCCI Engine Performance Data and Kinetic Modeling Results over a Wide Rangeof Gasoline Range Surrogate Fuel Blends

    Broader source: Energy.gov [DOE]

    Kinetic models of fuels are needed to allow the simulation of engine performance for research, design, or verification purposes.

  7. High Thermal Efficiency and Low Emissions with Supercritical Gasoline Injection-Ignition in a Light Duty Engine

    Broader source: Energy.gov [DOE]

    A novel fuel injector has been developed and tested that addresses the technical challenges of LTC, HCCI, gasoline PPC, and RCCI by reducing complexity and cost.

  8. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Procedures, Methodology, and Coefficients of Variation Gasoline price data collection procedures Every Monday, retail prices for all three grades of gasoline are collected by telephone from a sample of approximately 800 retail gasoline outlets. The prices are published around 5:00 p.m. ET Monday, except on government holidays, when the data are released on Tuesday (but still represent Monday's price). The reported price includes all taxes and is the pump price paid by a consumer as of 8:00 a.m.

  9. Gasoline and Diesel Fuel Update

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

    Even when crude oil prices are stable... read more in Gasoline Explained What causes fluctuations in diesel fuel oil prices? The retail price of a gallon of diesel fuel reflects ...

  10. Gasoline Price Pass-through

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

    differences, whereas stationary series can be estimated in level form. The unit root test could not reject the hypothesis that the retail and spot gasoline price series have a...

  11. SEP Request for Approval Form 3 - Other Complex Regression Model...

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

    3 - Other Complex Regression Model Rationale SEP Request for Approval Form 3 - Other Complex Regression Model Rationale File SEP-Request-for-Approval-Form-3Other-Complex-Regressio...

  12. Intrinsic Uncertainties in Modeling Complex Systems.

    SciTech Connect (OSTI)

    Cooper, Curtis S; Bramson, Aaron L.; Ames, Arlo L.

    2014-09-01

    Models are built to understand and predict the behaviors of both natural and artificial systems. Because it is always necessary to abstract away aspects of any non-trivial system being modeled, we know models can potentially leave out important, even critical elements. This reality of the modeling enterprise forces us to consider the prospective impacts of those effects completely left out of a model - either intentionally or unconsidered. Insensitivity to new structure is an indication of diminishing returns. In this work, we represent a hypothetical unknown effect on a validated model as a finite perturba- tion whose amplitude is constrained within a control region. We find robustly that without further constraints, no meaningful bounds can be placed on the amplitude of a perturbation outside of the control region. Thus, forecasting into unsampled regions is a very risky proposition. We also present inherent difficulties with proper time discretization of models and representing in- herently discrete quantities. We point out potentially worrisome uncertainties, arising from math- ematical formulation alone, which modelers can inadvertently introduce into models of complex systems. Acknowledgements This work has been funded under early-career LDRD project %23170979, entitled %22Quantify- ing Confidence in Complex Systems Models Having Structural Uncertainties%22, which ran from 04/2013 to 09/2014. We wish to express our gratitude to the many researchers at Sandia who con- tributed ideas to this work, as well as feedback on the manuscript. In particular, we would like to mention George Barr, Alexander Outkin, Walt Beyeler, Eric Vugrin, and Laura Swiler for provid- ing invaluable advice and guidance through the course of the project. We would also like to thank Steven Kleban, Amanda Gonzales, Trevor Manzanares, and Sarah Burwell for their assistance in managing project tasks and resources.

  13. The Performance of Gasoline Fuels and Surrogates in Gasoline HCCI Combustion

    Broader source: Energy.gov [DOE]

    Almost 2 dozen gasoline fuels, blending components, and surrogates were evaluated in a single-cylinder HCCI gasoline engine for combustion, emissions, and efficiency performance.

  14. This Week In Petroleum Gasoline Section

    Gasoline and Diesel Fuel Update (EIA)

    Regular gasoline retail prices (dollars per gallon) U.S. Average Conventional Reformulated U.S. retail regular gasoline prices graph Retail average regular gasoline prices graph Retail conventional regular gasoline prices graph Retail reformulated regular gasoline prices graph Retail average regular gasoline prices (dollars per gallon) more price data › Year ago Most recent 05/11/15 05/09/16 05/02/16 04/25/16 04/18/16 04/11/16 04/04/16 03/28/16 U.S. 2.691 2.220 2.240 2.162 2.137 2.069 2.083

  15. Gasoline prices decrease (long version)

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

    Gasoline prices decrease (long version) The U.S. average retail price for regular gasoline fell to $3.70 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. Pump prices were highest in the West Coast region at 4.01 a gallon, down 4.2 cents from a week ago. Prices were lowest in the Rocky Mountain States at 3.47 a gallon, remaining unchanged from last week

  16. Gasoline prices decrease (long version)

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

    5, 2014 Gasoline prices decrease (long version) The U.S. average retail price for regular gasoline fell to $3.68 a gallon on Monday. That's down 2.9 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 4.06 a gallon, down 1.8 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.47 a gallon, down 2.6 cents.This is Amerine Woodyard, with EIA, in Washington.

  17. EIA lowers forecast for summer gasoline prices

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

    EIA lowers forecast for summer gasoline prices U.S. gasoline prices are expected to be ... according to the new monthly forecast from the U.S. Energy Information Administration. ...

  18. Price Changes in the Gasoline Market - Are Midwestern Gasoline Prices Downward Sticky?

    Reports and Publications (EIA)

    1999-01-01

    The report concentrates on regional gasoline prices in the Midwest from October 1992 through June 1998.

  19. Blender Net Production of Finished Motor Gasoline

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

    Product: Total Finished Motor Gasoline Reformulated Gasoline Reformulated Blended w/ Fuel Ethanol Reformulated Other Conventional Gasoline Conventional Blended w/ Fuel Ethanol Conventional Blended w/ Fuel Ethanol, Ed55 and Lower Conventional Blended w/ Fuel Ethanol, Greater than Ed55 Conventional Other Finished Aviation Gasoline Kerosene-Type Jet Fuel Kerosene Distillate Fuel Oil Distillate F.O., 15 ppm Sulfur and under Distillate F.O., Greater than 15 ppm to 500 ppm Sulfur Distillate F.O.,

  20. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

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

    Turbocharged Direct Injection (GTDI) Engine Development Vehicle Technologies Office Merit Review 2014: Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine ...

  1. Motor Gasoline Outlook and State MTBE Bans

    Reports and Publications (EIA)

    2003-01-01

    The U.S. is beginning the summer 2003 driving season with lower gasoline inventories and higher prices than last year. Recovery from this tight gasoline market could be made more difficult by impending state bans on the blending of methyl tertiary butyl ether (MTBE) into gasoline that are scheduled to begin later this year.

  2. Gasoline prices - January 7, 2013

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

    short version) The U.S. average retail price for regular gasoline showed little movement from last week. Prices remained flat at $3.30 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington. For more information, contact Amerine Woodyard on

  3. Gasoline prices decrease (Short version)

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

    Short version) The U.S. average retail price for regular gasoline fell to $3.65 a gallon on Monday. That's down 2.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  4. Gasoline prices decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $3.63 a gallon on Monday. That's down 2.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  5. Modelling Complex Fenestration Systems using physical and virtual models

    SciTech Connect (OSTI)

    Thanachareonkit, Anothai; Scartezzini, Jean-Louis

    2010-04-15

    Physical or virtual models are commonly used to visualize the conceptual ideas of architects, lighting designers and researchers; they are also employed to assess the daylighting performance of buildings, particularly in cases where Complex Fenestration Systems (CFS) are considered. Recent studies have however revealed a general tendency of physical models to over-estimate this performance, compared to those of real buildings; these discrepancies can be attributed to several reasons. In order to identify the main error sources, a series of comparisons in-between a real building (a single office room within a test module) and the corresponding physical and virtual models was undertaken. The physical model was placed in outdoor conditions, which were strictly identical to those of the real building, as well as underneath a scanning sky simulator. The virtual model simulations were carried out by way of the Radiance program using the GenSky function; an alternative evaluation method, named Partial Daylight Factor method (PDF method), was also employed with the physical model together with sky luminance distributions acquired by a digital sky scanner during the monitoring of the real building. The overall daylighting performance of physical and virtual models were assessed and compared. The causes of discrepancies between the daylighting performance of the real building and the models were analysed. The main identified sources of errors are the reproduction of building details, the CFS modelling and the mocking-up of the geometrical and photometrical properties. To study the impact of these errors on daylighting performance assessment, computer simulation models created using the Radiance program were also used to carry out a sensitivity analysis of modelling errors. The study of the models showed that large discrepancies can occur in daylighting performance assessment. In case of improper mocking-up of the glazing for instance, relative divergences of 25-40% can be found in different room locations, suggesting that more light is entering than actually monitored in the real building. All these discrepancies can however be reduced by making an effort to carefully mock up the geometry and photometry of the real building. A synthesis is presented in this article which can be used as guidelines for daylighting designers to avoid or estimate errors during CFS daylighting performance assessment. (author)

  6. ,"Motor Gasoline Sales Through Retail Outlets Prices "

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

    ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Motor Gasoline Sales Through Retail Outlets Prices ",60,"Annual",2014,"6301984" ,"Release...

  7. Motor Gasoline Outlook and State MTBE Bans

    Gasoline and Diesel Fuel Update (EIA)

    Several years ago MTBE was detected in water supplies scattered throughout the country, ... gasoline engines into surface and ground water. (For more information refer to the ...

  8. Eliminating MTBE in Gasoline in 2006

    Gasoline and Diesel Fuel Update (EIA)

    in 2006. Companies' decisions to eliminate MTBE have been driven by State bans due to water contamination concerns, continuing liability exposure from adding MTBE to gasoline,...

  9. California Gasoline Price Study, 2003 Preliminary Findings

    Reports and Publications (EIA)

    2003-01-01

    This is the preliminary report to Congressman Ose describing the factors driving California's spring 2003 gasoline price spike and the subsequent price increases in June and August.

  10. Ethanol Demand in United States Production of Oxygenate-limited Gasoline

    SciTech Connect (OSTI)

    Hadder, G.R.

    2000-08-16

    Ethanol competes with methyl tertiary butyl ether (MTBE) to satisfy oxygen, octane, and volume requirements of certain gasolines. However, MTBE has water quality problems that may create significant market opportunities for ethanol. Oak Ridge National Laboratory (ORNL) has used its Refinery Yield Model to estimate ethanol demand in gasolines with restricted use of MTBE. Reduction of the use of MTBE would increase the costs of gasoline production and possibly reduce the gasoline output of U.S. refineries. The potential gasoline supply problems of an MTBE ban could be mitigated by allowing a modest 3 vol percent MTBE in all gasoline. In the U.S. East and Gulf Coast gasoline producing regions, the 3 vol percent MTBE option results in costs that are 40 percent less than an MTBE ban. In the U.S. Midwest gasoline producing region, with already high use of ethanol, an MTBE ban has minimal effect on ethanol demand unless gasoline producers in other regions bid away the local supply of ethanol. The ethanol/MTBE issue gained momentum in March 2000 when the Clinton Administration announced that it would ask Congress to amend the Clean Air Act to provide the authority to significantly reduce or eliminate the use of MTBE; to ensure that air quality gains are not diminished as MTBE use is reduced; and to replace the existing oxygenate requirement in the Clean Air Act with a renewable fuel standard for all gasoline. Premises for the ORNL study are consistent with the Administration announcement, and the ethanol demand curve estimates of this study can be used to evaluate the impact of the Administration principles and related policy initiatives.

  11. Simple Model Representations of Transport in a Complex Fracture...

    Office of Scientific and Technical Information (OSTI)

    It is common, however, to represent the complex fracture by much simpler models consisting ... Simple-model properties are often inferred from the analysis of short-term (one to a few ...

  12. Gasoline prices - January 7, 2013

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

    long version) The U.S. average retail price for regular gasoline showed little movement from last week. Prices remained flat at $3.30 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the New England and Central Atlantic regions, at 3.52 a gallon, up around 2 cents in both regions from a week ago. For the second week in a row, prices were lowest in the Rocky Mountain States at 2.94 a gallon, down 8.1 cents. This is

  13. Gasoline prices decrease (long version)

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

    long version) The U.S. average retail price for regular gasoline fell to $3.65 a gallon on Monday. That's down 2.8 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 region at 3.93 a gallon, down 1.9 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.37 a gallon, down 2.6 cents

  14. Gasoline prices decrease (long version)

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

    long version) The U.S. average retail price for regular gasoline fell to $3.63 a gallon on Monday. That's down 2.9 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 region at 3.89 a gallon, up a penny from a week ago. Prices were lowest in the Gulf Coast States at 3.38 a gallon, down 3.9 cents

  15. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline Pump Components History WHAT WE PAY FOR IN A GALLON OF REGULAR GASOLINE Mon-yr Retail Price (Dollars per gallon) Refining (percentage) Distribution & Marketing (percentage) Taxes (percentage) Crude Oil (percentage) Jan-00 1.289 7.8 13.0 32.1 47.1 Feb-00 1.377 17.9 7.5 30.1 44.6 Mar-00 1.517 15.4 12.8 27.3 44.6 Apr-00 1.465 10.1 20.2 28.3 41.4 May-00 1.485 20.2 9.2 27.9 42.7 Jun-00 1.633 22.2 8.8 25.8 43.1 Jul-00 1.551 13.2 15.8 27.2 43.8 Aug-00 1.465 15.8 7.5 28.8 47.8 Sep-00 1.550

  16. Gasoline prices continue to decrease (short version)

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

    Gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell to $3.29 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.

  17. Gasoline prices continue to increase (short version)

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

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.44 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.

  18. Gasoline prices continue to increase (short version)

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

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.48 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.

  19. Gasoline prices continue to increase (short version)

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

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.51 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.

  20. Gasoline prices continue to increase (short version)

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

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.55 a gallon on Monday. That's up 3½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  1. Gasoline prices continue to increase (short version)

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

    4, 2014 Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.65 a gallon on Monday. That's up 5½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  2. Gasoline prices continue to increase (short version)

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

    1, 2014 Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.68 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. This is Amerine Woodyard, with EIA, in Washington.

  3. Gasoline prices continue to rise (Short version)

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

    Gasoline prices continue to rise (short version) The U.S. average retail price for regular gasoline rose to $3.67 a gallon on Monday. That's up 7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  4. High Efficiency Clean Combustion Engine Designs for Gasoline...

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

    Engine Designs for Gasoline and Diesel Engines High Efficiency Clean Combustion Engine Designs for Gasoline and Diesel Engines 2009 DOE Hydrogen Program and Vehicle Technologies ...

  5. Fact #565: April 6, 2009 Household Gasoline Expenditures by Income...

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

    Household Gasoline Expenditures by Income Quintile Bar graph showing the household gasoline expenditures by income quintile in the years 1989, 1997, and 2007. For more detailed ...

  6. Dispensing Equipment Testing With Mid-Level Ethanol/Gasoline...

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

    Dispensing Equipment Testing With Mid-Level EthanolGasoline Test Fluid Dispensing Equipment Testing With Mid-Level EthanolGasoline Test Fluid The National Renewable Energy ...

  7. Green Gasoline from Wood Using Carbona Gasification and Topsoe...

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

    ... would provide 36% of EISA cellulosic biofuel goal for 2022 - Projected gasoline ... * Bio-derived gasoline passed single-engine emission tests for EPA registration - ...

  8. Characterization of Pre-Commercial Gasoline Engine Particulates...

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

    Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods Characterization of Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods ...

  9. Design Case Summary: Production of Gasoline and Diesel from Biomass...

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

    Design Case Summary: Production of Gasoline and Diesel from Biomass via Fast Pyrolysis, Hydrotreating, and Hydrocracking Design Case Summary: Production of Gasoline and Diesel from ...

  10. Production of Gasoline and Diesel from Biomass via Fast Pyrolysis...

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

    Production of Gasoline and Diesel from Biomass via Fast Pyrolysis, Hydrotreating and Hydrocracking: A Design Case Production of Gasoline and Diesel from Biomass via Fast Pyrolysis, ...

  11. Load Expansion with Diesel/Gasoline RCCI for Improved Engine...

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

    with DieselGasoline RCCI for Improved Engine Efficiency and Emissions Load Expansion with DieselGasoline RCCI for Improved Engine Efficiency and Emissions This poster will ...

  12. Fact #890: September 14, 2015 Gasoline Prices Are Affected by...

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

    Gasoline Prices Are Affected by Changes in Refinery Output File fotw890web.xlsx More Documents & Publications Fact 858 February 2, 2015 Retail Gasoline Prices in 2014 ...

  13. Impact of Ethanol Blending on U.S. Gasoline Prices

    SciTech Connect (OSTI)

    Not Available

    2008-11-01

    This study assesses the impact of ethanol blending on gasoline prices in the US today and the potential impact of ethanol on gasoline prices at higher blending concentrations.

  14. Oxidation characteristics of gasoline direct-injection (GDI)...

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

    characteristics of gasoline direct-injection (GDI) engine soot: Catalytic effects of ash and modified kinetic correlation Title Oxidation characteristics of gasoline...

  15. DOE's Gasoline/Diesel PM Split Study | Department of Energy

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

    3 DEER Conference Presentation: Desert Research Institute PDF icon 2003deerfujita.pdf More Documents & Publications DOE's GasolineDiesel PM Split Study DOE's GasolineDiesel PM ...

  16. Modeling Power Systems as Complex Adaptive Systems

    SciTech Connect (OSTI)

    Chassin, David P.; Malard, Joel M.; Posse, Christian; Gangopadhyaya, Asim; Lu, Ning; Katipamula, Srinivas; Mallow, J V.

    2004-12-30

    Physical analogs have shown considerable promise for understanding the behavior of complex adaptive systems, including macroeconomics, biological systems, social networks, and electric power markets. Many of today's most challenging technical and policy questions can be reduced to a distributed economic control problem. Indeed, economically based control of large-scale systems is founded on the conjecture that the price-based regulation (e.g., auctions, markets) results in an optimal allocation of resources and emergent optimal system control. This report explores the state-of-the-art physical analogs for understanding the behavior of some econophysical systems and deriving stable and robust control strategies for using them. We review and discuss applications of some analytic methods based on a thermodynamic metaphor, according to which the interplay between system entropy and conservation laws gives rise to intuitive and governing global properties of complex systems that cannot be otherwise understood. We apply these methods to the question of how power markets can be expected to behave under a variety of conditions.

  17. Complex Geometry Creation and Turbulent Conjugate Heat Transfer Modeling

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect Conference: Complex Geometry Creation and Turbulent Conjugate Heat Transfer Modeling Citation Details In-Document Search Title: Complex Geometry Creation and Turbulent Conjugate Heat Transfer Modeling The multiphysics capabilities of COMSOL provide the necessary tools to simulate the turbulent thermal-fluid aspects of the High Flux Isotope Reactor (HFIR). Version 4.1, and later, of COMSOL provides three different turbulence models: the standard k-{var_epsilon}

  18. Simple Model Representations of Transport in a Complex Fracture...

    Office of Scientific and Technical Information (OSTI)

    Effects on Long-Term Predictions Citation Details In-Document Search Title: Simple Model Representations of Transport in a Complex Fracture and Their Effects on Long-Term ...

  19. Materiel availability modeling and analysis for a complex army weapon

    Office of Scientific and Technical Information (OSTI)

    system. (Conference) | SciTech Connect Materiel availability modeling and analysis for a complex army weapon system. Citation Details In-Document Search Title: Materiel availability modeling and analysis for a complex army weapon system. Materiel availability (A{sub m}) is a new US Department of Defense Key Performance Parameter (KPP) implemented through a mandatory Sustainment Metric consisting of an Availability KPP and two supporting Key System Attributes (KSAs), materiel reliability and

  20. Assessment of Summer 1997 Motor Gasoline Price Increase

    Reports and Publications (EIA)

    1998-01-01

    Assesses the 1997 late summer gasoline market and some of the important issues surrounding that event.

  1. STEO January 2013 - average gasoline prices

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

    At the same time, U.S. gasoline demand is expected to change little over the next two years as Americans buy more fuel-efficient vehicles.....and older gas guzzlers are retired

  2. Reformulated Gasoline Market Affected Refiners Differently, 1995

    Reports and Publications (EIA)

    1996-01-01

    This article focuses on the costs of producing reformulated gasoline (RFG) as experienced by different types of refiners and on how these refiners fared this past summer, given the prices for RFG at the refinery gate.

  3. Gasoline prices up this week (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to 3.78 a gallon on Monday. That's up 3.7 cents from a week ago and up almost 43 cents from 4 weeks ago,...

  4. Northeast Gasoline Supply Reserve | Department of Energy

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

    The Northeast region of the U.S. is particularly vulnerable to gasoline disruptions as a result of hurricanes and other natural events. Hurricane Sandy in 2012 caused widespread ...

  5. Gasoline prices inch down (long version)

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

    Gasoline prices inch down (long version) The U.S. average retail price for regular ... Pump prices were highest in the West Coast region at 3.96 a gallon, down 4.2 cents from a ...

  6. Gasoline prices up this week (short version)

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

    for regular gasoline rose to 3.75 a gallon on Monday. That's up almost 14 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  7. Gasoline prices inch down slightly (short version)

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

    short version) The U.S. average retail price for regular gasoline fell slightly to 3.54 a gallon on Monday. That's down 6-tenths of a penny from a week ago, based on the weekly...

  8. Inquiry into August 2003 Gasoline Price Spike

    Reports and Publications (EIA)

    2003-01-01

    U.S. Secretary of Energy Spencer Abraham requested that the Energy Information Administration conduct an inquiry into the causes of the price increases of gasoline in July and August of 2003.

  9. Gasoline prices inch down (Short version)

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

    short version) The U.S. average retail price for regular gasoline rose slightly to 3.66 a gallon on Monday. That's up nine tenths of a penny from a week ago, based on the weekly ...

  10. Gasoline prices fall slightly (short version)

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

    short version) The U.S. average retail price for regular gasoline fell slightly to 3.49 a gallon on Monday. That's down 4-tenths of a penny from a week ago, based on the weekly ...

  11. Gasoline prices show sharp increase (short version)

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

    short version) The U.S. average retail price for regular gasoline saw its sharpest increase this year at 3.54 a gallon on Monday. That's up 18.1 cents from a week ago, based on ...

  12. Insights into Spring 2008 Gasoline Prices

    Reports and Publications (EIA)

    2008-01-01

    Gasoline prices rose rapidly in spring 2007 due a variety of factors, including refinery outages and lower than expected imports. This report explores those factors and looks at the implications for 2008.

  13. Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel

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

    Use Michigan Fleet Reduces Gasoline and Diesel Use to someone by E-mail Share Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Facebook Tweet about Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Twitter Bookmark Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Google Bookmark Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Delicious Rank Alternative Fuels Data

  14. Chemistry Impacts in Gasoline HCCI

    SciTech Connect (OSTI)

    Szybist, James P; Bunting, Bruce G

    2006-09-01

    The use of homogeneous charge compression ignition (HCCI) combustion in internal combustion engines is of interest because it has the potential to produce low oxides of nitrogen (NOx) and particulate matter (PM) emissions while providing diesel-like efficiency. In HCCI combustion, a premixed charge of fuel and air auto-ignites at multiple points in the cylinder near top dead center (TDC), resulting in rapid combustion with very little flame propagation. In order to prevent excessive knocking during HCCI combustion, it must take place in a dilute environment, resulting from either operating fuel lean or providing high levels of either internal or external exhaust gas recirculation (EGR). Operating the engine in a dilute environment can substantially reduce the pumping losses, thus providing the main efficiency advantage compared to spark-ignition (SI) engines. Low NOx and PM emissions have been reported by virtually all researchers for operation under HCCI conditions. The precise emissions can vary depending on how well mixed the intake charge is, the fuel used, and the phasing of the HCCI combustion event; but it is common for there to be no measurable PM emissions and NOx emissions <10 ppm. Much of the early HCCI work was done on 2-stroke engines, and in these studies the CO and hydrocarbon emissions were reported to decrease [1]. However, in modern 4-stroke engines, the CO and hydrocarbon emissions from HCCI usually represent a marked increase compared with conventional SI combustion. This literature review does not report on HCCI emissions because the trends mentioned above are well established in the literature. The main focus of this literature review is the auto-ignition performance of gasoline-type fuels. It follows that this discussion relies heavily on the extensive information available about gasoline auto-ignition from studying knock in SI engines. Section 2 discusses hydrocarbon auto-ignition, the octane number scale, the chemistry behind it, its shortcomings, and its relevance to HCCI. Section 3 discusses the effects of fuel volatility on fuel and air mixing and the consequences it has on HCCI. The effects of alcohol fuels on HCCI performance, and specifically the effects that they have on the operable speed/load range, are reviewed in Section 4. Finally, conclusions are drawn in Section 5.

  15. Education Highlights: Gasoline Compression Ignition | Argonne National

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

    Laboratory Education Highlights: Gasoline Compression Ignition Share Description Argonne intern Kendyl Partridge from Mississippi State University worked with Argonne mentor Steve Ciatti of the Energy Systems division in studying gasoline compression ignition engines. This research will help engineers increase an engine's efficiency while reducing its environmental impact. Speakers Kendyl Partridge, Argonne National Laboratory Intern from Mississippi State University Duration 1:56 Topic

  16. Summer 2003 Motor Gasoline Outlook.doc

    Gasoline and Diesel Fuel Update (EIA)

    3 1 Short-Term Energy Outlook April 2003 Summer 2003 Motor Gasoline Outlook Summary For the upcoming summer season (April to September 2003), high crude oil costs and other factors are expected to yield average retail motor gasoline prices higher than those of last year. Current crude oil prices reflect a substantial uncertainty premium due to concerns about the current conflict in the Persian Gulf, lingering questions about whether Venezuelan oil production will recover to near pre-strike

  17. Trends in motor gasolines: 1942-1981

    SciTech Connect (OSTI)

    Shelton, E M; Whisman, M L; Woodward, P W

    1982-06-01

    Trends in motor gasolines for the years of 1942 through 1981 have been evaluated based upon data contained in surveys that have been prepared and published by the Bartlesville Energy Technology Center (BETC). These surveys have been published twice annually since 1935 describing the properties of motor gasolines from throughout the country. The surveys have been conducted in cooperation with the American Petroleum Institute (API) since 1948. Various companies from throughout the country obtain samples from retail outlets, analyze the samples by the American Society for Testing and Materials (ASTM) procedures, and report data to the Bartlesville center for compilation, tabulation, calculation, analysis and publication. A typical motor gasoline report covers 2400 samples from service stations throughout the country representing some 48 companies that manufacture and supply gasoline. The reports include trend charts, octane plots, and tables of test results from about a dozen different tests. From these data in 77 semiannual surveys, a summary report has thus been assembled that shows trends in motor gasolines throughout the entire era of winter 1942 to 1943 to the present. Trends of physical properties including octane numbers, antiknock ratings, distillation temperatures, Reid vapor pressure, sulfur and lead content are tabulated, plotted and discussed in the current report. Also included are trend effects of technological advances and the interactions of engine design, societal and political events and prices upon motor gasoline evolution during the 40 year period.

  18. Electric and Gasoline Vehicle Fuel Efficiency Analysis

    Energy Science and Technology Software Center (OSTI)

    1995-05-24

    EAGLES1.1 is PC-based interactive software for analyzing performance (e.g., maximum range) of electric vehicles (EVs) or fuel economy (e.g., miles/gallon) of gasoline vehicles (GVs). The EV model provides a second by second simulation of battery voltage and current for any specified vehicle velocity/time or power/time profile. It takes into account the effects of battery depth-of-discharge (DOD) and regenerative braking. The GV fuel economy model which relates fuel economy, vehicle parameters, and driving cycle characteristics, canmore » be used to investigate the effects of changes in vehicle parameters and driving patterns on fuel economy. For both types of vehicles, effects of heating/cooling loads on vehicle performance can be studied. Alternatively, the software can be used to determine the size of battery needed to satisfy given vehicle mission requirements (e.g., maximum range and driving patterns). Options are available to estimate the time necessary for a vehicle to reach a certain speed with the application of a specified constant power and to compute the fraction of time and/or distance in a drivng cycle for speeds exceeding a given value.« less

  19. U.S. average gasoline prices falling to near $2 in December

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

    In its new forecast, the U.S. Energy Information Administration said high gasoline production, cheaper winter-grade gasoline, and lower gasoline demand following this summer's peak ...

  20. Mathematical approaches for complexity/predictivity trade-offs in complex system models : LDRD final report.

    SciTech Connect (OSTI)

    Goldsby, Michael E.; Mayo, Jackson R.; Bhattacharyya, Arnab; Armstrong, Robert C.; Vanderveen, Keith

    2008-09-01

    The goal of this research was to examine foundational methods, both computational and theoretical, that can improve the veracity of entity-based complex system models and increase confidence in their predictions for emergent behavior. The strategy was to seek insight and guidance from simplified yet realistic models, such as cellular automata and Boolean networks, whose properties can be generalized to production entity-based simulations. We have explored the usefulness of renormalization-group methods for finding reduced models of such idealized complex systems. We have prototyped representative models that are both tractable and relevant to Sandia mission applications, and quantified the effect of computational renormalization on the predictive accuracy of these models, finding good predictivity from renormalized versions of cellular automata and Boolean networks. Furthermore, we have theoretically analyzed the robustness properties of certain Boolean networks, relevant for characterizing organic behavior, and obtained precise mathematical constraints on systems that are robust to failures. In combination, our results provide important guidance for more rigorous construction of entity-based models, which currently are often devised in an ad-hoc manner. Our results can also help in designing complex systems with the goal of predictable behavior, e.g., for cybersecurity.

  1. Gasoline distribution cycle and vapor emissions in Mexico City metropolitan area

    SciTech Connect (OSTI)

    Molina, M.M.; Secora, I.S.; Gallegos, J.R.M.; Grapain, V.M.G.; Villegas, F.M.R.; Flores, L.A.M.

    1997-12-31

    Ozone in the main air pollutant in Mexico City Metropolitan Area (MCMA). This kind of pollution is induced by the emissions of nitrogen oxides and hydrocarbons. According to Official Statistics National Air Pollution Quality Standard is exceeded over 300 days a year. Volatile hydrocarbons are generated in the cycle of storage transport and distribution of fuel (Gasoline Distribution Cycle). Above 17 millions of liters are handled daily in MCMA. Evaporative emission control is a complex task involving: floating roof tanks and vapor recovery units installation at bulk terminals and implementation of Phase 1 and Phase 2 vapor recovery systems at service stations. Since 1990, IMP has been involved in researching vapor emissions associated to gasoline storage and distribution cycle. Besides, the authors evaluate several technologies for bulk terminals and service stations. In this job, the authors present the results of an evaluation according to Mexican Official Standard of 500 vehicles. The gasoline vapors are trapped during refueling of cars and they are conduced to an equipment that includes an activated charcoal canister in order to adsorb them. Another Activated charcoal canister adsorbs ambient air as a reference. Experimental results showed that refueling hydrocarbon emissions are between 0.4 and 1.2 grams per liter with averages of 0.79 and 0.88 grams per liter according with two different gasoline types. These results were applied to Mexico City Vehicular fleet for the gasoline distribution cycle in order to obtain a total volatile hydrocarbon emission in Mexico City Metropolitan Area.

  2. Modeling and Algorithmic Approaches to Constitutively-Complex, Microstructured Fluids

    SciTech Connect (OSTI)

    Miller, Gregory H.; Forest, Gregory

    2011-12-22

    We present a new multiscale model for complex uids based on three scales: microscopic, kinetic, and continuum. We choose the microscopic level as Kramers' bead-rod model for polymers, which we describe as a system of stochastic di#11;erential equations with an implicit constraint formulation. The associated Fokker-Planck equation is then derived, and adiabatic elimination removes the fast momentum coordinates. Approached in this way, the kinetic level reduces to a dispersive drift equation. The continuum level is modeled with a #12;nite volume Godunov-projection algorithm. We demonstrate computation of viscoelastic stress divergence using this multiscale approach.

  3. Modeling of Carbohydrate Binding Modules Complexed to Cellulose

    SciTech Connect (OSTI)

    Nimlos, M. R.; Beckham, G. T.; Bu, L.; Himmel, M. E.; Crowley, M. F.; Bomble, Y. J.

    2012-01-01

    Modeling results are presented for the interaction of two carbohydrate binding modules (CBMs) with cellulose. The family 1 CBM from Trichoderma reesei's Cel7A cellulase was modeled using molecular dynamics to confirm that this protein selectively binds to the hydrophobic (100) surface of cellulose fibrils and to determine the energetics and mechanisms for locating this surface. Modeling was also conducted of binding of the family 4 CBM from the CbhA complex from Clostridium thermocellum. There is a cleft in this protein, which may accommodate a cellulose chain that is detached from crystalline cellulose. This possibility is explored using molecular dynamics.

  4. Gasoline prices continue to decrease (long version)

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

    3, 2014 Gasoline prices continue to decrease (long version) The U.S. average retail price for regular gasoline fell to $3.29 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. Pump prices were highest in the West Coast states at 3.49 a gallon, up 6-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast region at 3.08 a gallon, down 9-tenths of a penny. This is Amerine Woodyard, with

  5. Gasoline prices continue to decrease (long version)

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

    19, 2014 Gasoline prices continue to decrease (long version) The U.S. average retail price for regular gasoline fell to $3.67 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. Pump prices were highest in the West Coast states at 4.02 a gallon, down 7-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast region at 3.44 a gallon, up 2-tenths of a penny.

  6. Gasoline prices continue to fall (long version)

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

    Gasoline prices continue to fall (long version) The U.S. average retail price for regular gasoline decreased for the second week in a row to $3.71 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. Pump prices were highest in the West Coast region at 4.05 a gallon, down 2 cents from a week ago. Prices were lowest in the Rocky Mountain States at 3.47 a gallon, down 7-tenths of a penny

  7. Gasoline prices continue to fall (long version)

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

    Gasoline prices continue to fall (long version) The U.S. average retail price for regular gasoline fell to $3.61 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. Pump prices were highest in the West Coast region at 3.93 a gallon, down 1.7 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.43 a gallon, down 4.6

  8. Gasoline prices continue to increase (long version)

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

    , 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.48 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. Pump prices were highest in the West Coast states at 3.71 a gallon, up 5.6 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.23 a gallon, up 1.8 cents. This is Marcela Rourk, with EIA, in Washington.

  9. Gasoline prices continue to increase (long version)

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

    March 10, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.51 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. Pump prices were highest in the West Coast states at 3.76 a gallon, up 4.7 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.25 a gallon, up 2 ½ cents.

  10. Gasoline prices continue to increase (long version)

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

    7, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.55 a gallon on Monday. That's up 3½ 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 3.81 a gallon, up 5½ cents from a week ago. Prices were lowest in the Gulf Coast region at 3.28 a gallon, up 3.1 cents. This is Marcela Rourk, with EIA, in Washington.

  11. Gasoline prices continue to increase (long version)

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

    14, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.65 a gallon on Monday. That's up 5½ 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 3.98 a gallon, up 9.7 cents from a week ago. Prices were lowest in the Rocky Mountain states at 3.44 a gallon, down 8-tenths of a penny

  12. Gasoline prices continue to increase (long version)

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

    21, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.68 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. Pump prices were highest in the West Coast states at 4.03 a gallon, up a nickel from a week ago. Prices were lowest in the Rocky Mountain states at 3.45 a gallon, up 8-tenths of a penny

  13. Gasoline prices continue to increase (long version)

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

    24, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.44 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. Pump prices were highest in the West Coast states at 3.65 a gallon, up 8 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.21 a gallon, up

  14. Gasoline prices continue to rise (long version)

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

    Gasoline prices continue to rise (long version) The U.S. average retail price for regular gasoline rose to $3.67 a gallon on Monday. That's up 7 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 region at 3.95 a gallon, up 1.4 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.39 a gallon, up 2.8 cents. The Midwest region boasted the highest weekly increase at 18.8 cents with

  15. What Drives U.S. Gasoline Prices?

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

    What Drives U.S. Gasoline Prices? October 2014 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | What Drives U.S. Gasoline Prices? i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States

  16. Fact #569: May 4, 2009 Gasoline Prices Around the World

    Broader source: Energy.gov [DOE]

    A survey of worldwide gasoline prices for February and March, 2009, shows that European countries had the highest prices for gasoline with the Netherlands topping the list at $6.25 per gallon. The...

  17. Motor Gasoline Market Spring 2007 and Implications for Spring 2008

    Reports and Publications (EIA)

    2008-01-01

    This report focuses on the major factors that drove the widening difference between wholesale gasoline and crude oil prices in 2007 and explores how those factors might impact gasoline prices in 2008.

  18. Fact #835: August 25, 2014 Average Annual Gasoline Pump Price...

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

    35: Average Annual Gasoline Pump Price, 1929-2013 File fotw835web.xlsx More Documents & Publications Fact 915: March 7, 2016 Average Historical Annual Gasoline Pump Price, ...

  19. U.S. gasoline price falls under $3 (long version)

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

    November 3, 2014 U.S. gasoline price falls under 3 (long version) The U.S. average retail price for regular gasoline fell to its lowest level since December 2010 at 2.99 a gallon ...

  20. Gasoline prices decrease nationally for first time in 4 weeks...

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

    3, 2014 U.S. gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to 3.70 a gallon on Monday. That's up 1.8 cents from a ...

  1. Gasoline prices decrease nationally for first time in 4 weeks...

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

    26, 2014 Gasoline prices increase (long version) The U.S. average retail price for regular gasoline rose to 3.67 a gallon on Monday. That's up 9- tenths of a penny from a week ...

  2. Gasoline prices decrease nationally for first time in 4 weeks...

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

    Gasoline prices decrease nationally for first time in 4 weeks (short version) The U.S. average retail price for regular gasoline fell for the first time in 4 weeks to 3.33 a ...

  3. Gasoline prices decrease nationally for first time in 4 weeks...

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

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to 3.38 a gallon on Monday. That's up 7.1 cents from a week ago, based ...

  4. Gasoline prices decrease nationally for first time in 4 weeks...

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

    Gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell to 3.30 a gallon on Monday. That's down 1-tenth of a penny from a week ...

  5. Gasoline prices decrease nationally for first time in 4 weeks...

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

    4, 2014 Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to 3.60 a gallon on Monday. That's up 1.7 cents from a week ...

  6. Gasoline prices decrease nationally for first time in 4 weeks...

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

    Gasoline prices increase (short version) The U.S. average retail price for regular gasoline rose to 3.67 a gallon on Monday. That's up 9- tenths of a penny from a week ago, based ...

  7. Gasoline prices decrease nationally for first time in 4 weeks...

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

    4, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to 3.60 a gallon on Monday. That's up 1.7 cents from a week ...

  8. Gasoline prices decrease nationally for first time in 4 weeks...

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

    gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to 3.70 a gallon on Monday. That's up 1.8 cents from a week ago, based ...

  9. Gasoline prices decrease nationally for first time in 4 weeks...

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

    2, 2014 Gasoline prices continue to decrease (long version) The U.S. average retail price for regular gasoline fell to 3.67 a gallon on Monday. That's down 1.6 cents from a week ...

  10. Gasoline prices decrease nationally for first time in 4 weeks...

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

    Gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell to 3.67 a gallon on Monday. That's down 1.6 cents from a week ago, ...

  11. Gasoline prices decrease nationally for first time in 4 weeks...

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

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to 3.58 a gallon on Monday. That's up 3 cents from a week ago, based ...

  12. Gasoline prices decrease nationally for first time in 4 weeks...

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

    June 9, 2014 U.S. gasoline prices decrease for first time in three weeks (long version) The U.S. average retail price for regular gasoline fell for the first time in three weeks to ...

  13. DOE Gasoline Price Watch Website and Hotline | Department of Energy

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

    Gasoline Price Watch Website and Hotline DOE Gasoline Price Watch Website and Hotline April 20, 2006 - 12:26pm Addthis WASHINGTON, DC - Secretary of Energy Samuel W. Bodman today is reminding consumers about the Department of Energy's (DOE) gasoline price reporting system. Consumers can report activity at local gasoline filling stations that they believe may constitute "gouging" or "price fixing" by visiting gaswatch.energy.gov/. "There are many legitimate factors

  14. Why Do Motor Gasoline Prices Vary Regionally? California Case Study

    Reports and Publications (EIA)

    1998-01-01

    Analysis of the difference between the retail gasoline prices in California and the average U.S. retail prices.

  15. National Survey of E85 and Gasoline Prices

    SciTech Connect (OSTI)

    Bergeron, P.

    2008-10-01

    Study compares the prices of E85 and regular gasoline nationally and regionally over time for one year.

  16. Demand and Price Outlook for Phase 2 Reformulated Gasoline, 2000

    Gasoline and Diesel Fuel Update (EIA)

    Demand and Price Outlook for Phase 2 Reformulated Gasoline, 2000 Tancred Lidderdale and Aileen Bohn (1) Contents * Summary * Introduction * Reformulated Gasoline Demand * Oxygenate Demand * Logistics o Interstate Movements and Storage o Local Distribution o Phase 2 RFG Logistics o Possible Opt-Ins to the RFG Program o State Low Sulfur, Low RVP Gasoline Initiatives o NAAQS o Tier 2 Gasoline * RFG Production Options o Toxic Air Pollutants (TAP) Reduction o Nitrogen Oxides (NOx) Reduction o

  17. Gasoline price shows small increase (Short version)

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

    shows small increase (Short version) The U.S. average retail price for regular gasoline rose to $3.32 a gallon on Monday. That's up 1.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  18. Gasoline price shows small increase (short version)

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

    Short version) The U.S. average retail price for regular gasoline showed little movement from last week. Prices rose 4/10 of a cent to $3.30 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration.

  19. Gasoline price up this week (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $3.36 a gallon on Monday. That's up 4.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  20. Gasoline prices continue to decrease (short version)

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

    (short version) The U.S. average retail price for regular gasoline fell to $3.65 a gallon on Monday. That's down 3 1/2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  1. Gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $3.50 a gallon on Monday. That's down 8.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  2. Gasoline prices continue to fall (short version)

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

    (short version) The U.S. average retail price for regular gasoline fell to $3.54 a gallon on Monday. That's down 6.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  3. Gasoline prices continue to fall (short version)

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

    (short version) The U.S. average retail price for regular gasoline decreased for the second week in a row to $3.71 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. This is Amerine Woodyard, with EIA, in Washington.

  4. Gasoline prices continue to fall (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $3.70 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. This is Amerine Woodyard, with EIA, in Washington.

  5. Gasoline prices continue to fall (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $3.61 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. This is Amerine Woodyard, with EIA, in Washington.

  6. Gasoline prices continue to fall (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $3.52 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.

  7. Gasoline prices up this week (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to 3.61 a gallon on Monday. That's up 7.3 cents from a week ago and up 25.4 cents from two weeks ago, based...

  8. Eliminating MTBE in Gasoline in 2006

    Reports and Publications (EIA)

    2006-01-01

    A review of the market implications resulting from the rapid change from methyl tertiary butyl ether (MTBE) to ethanol-blended reformulated gasoline (RFG) on the East Coast and in Texas. Strains in ethanol supply and distribution will increase the potential for price volatility in these regions this summer.

  9. Diesel vs Gasoline Production | Department of Energy

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

    A look at refinery decisions that decide "swing" between diesel and gasoline production PDF icon deer08_leister.pdf More Documents & Publications Marathon Sees Diesel Fuel in Future ITP Petroleum Refining: Energy Bandwidth for Petroleum Refining Processes ITP Petroleum Refining: Profile of the Petroleum Refining Industry in California: California Industries of the Future Program

  10. The potential for alcohols and related ethers to displace conventional gasoline components

    SciTech Connect (OSTI)

    Hadder, G.R.; McNutt, B.D.

    1996-02-01

    The United States Department of Energy is required by law to determine the feasibility of producing sufficient replacement fuels to replace 30 percent of the projected United States consumption of motor fuels by light duty vehicles in the year 2010. A replacement fuel is a non-petroleum portion of gasoline, including alcohols, natural gas and certain other components. A linear program has been used to study refinery impacts for production of ``low petroleum`` gasolines, which contain replacement fuels. The analysis suggests that high oxygenation is the key to meeting the replacement fuel target, and major contributors to cost increase can include investment in processes to produce olefins for etherification with alcohols. High oxygenation can increase the costs of control of vapor pressure, distillation properties, and pollutant emissions of gasolines. Year-round low petroleum gasoline with near-30 percent non-petroleum might be produced with cost increases of 23 to 37 cents per gallon, with substantial decreases in greenhouse gas emissions in some cases. Cost estimates are sensitive to assumptions about extrapolation of a national model for pollutant emissions, availability of raw materials and other issues. Reduction in crude oil use, a major objective of the low petroleum gasoline program, is 10 to 17 percent in the analysis.

  11. Gasoline Price Pass-through

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

    the price data was performed in order to assist in specifying the form of the forecasting model; for example, data with unit root properties are best analyzed in first differences,...

  12. CREATING THE NORTHEAST GASOLINE SUPPLY RESERVE

    Broader source: Energy.gov [DOE]

    In 2012, Superstorm Sandy made landfall in the northeastern United States and caused heavy damage to two refineries and left more than 40 terminals in New York Harbor closed due to water damage and loss of power. This left some New York gas stations without fuel for as long as 30 days. As part of the Obama Administration’s ongoing response to the storm, the Department of Energy created the first federal regional refined product reserve, the Northeast Gasoline Supply Reserve.

  13. Reformulated gasoline deal with Venezuela draws heat

    SciTech Connect (OSTI)

    Begley, R.

    1994-04-06

    A fight is brewing in Congress over a deal to let Venezuela off the hook in complying with the Clean Air Act reformulated gasoline rule. When Venezuela threatened to call for a GATT panel to challenge the rule as a trade barrier, the Clinton Administration negotiated to alter the rule, a deal that members of Congress are characterizing as {open_quotes}secret{close_quotes} and {open_quotes}back door.{close_quotes}

  14. European Lean Gasoline Direct Injection Vehicle Benchmark

    SciTech Connect (OSTI)

    Chambon, Paul H; Huff, Shean P; Edwards, Kevin Dean; Norman, Kevin M; Prikhodko, Vitaly Y; Thomas, John F

    2011-01-01

    Lean Gasoline Direct Injection (LGDI) combustion is a promising technical path for achieving significant improvements in fuel efficiency while meeting future emissions requirements. Though Stoichiometric Gasoline Direct Injection (SGDI) technology is commercially available in a few vehicles on the American market, LGDI vehicles are not, but can be found in Europe. Oak Ridge National Laboratory (ORNL) obtained a European BMW 1-series fitted with a 2.0l LGDI engine. The vehicle was instrumented and commissioned on a chassis dynamometer. The engine and after-treatment performance and emissions were characterized over US drive cycles (Federal Test Procedure (FTP), the Highway Fuel Economy Test (HFET), and US06 Supplemental Federal Test Procedure (US06)) and steady state mappings. The vehicle micro hybrid features (engine stop-start and intelligent alternator) were benchmarked as well during the course of that study. The data was analyzed to quantify the benefits and drawbacks of the lean gasoline direct injection and micro hybrid technologies from a fuel economy and emissions perspectives with respect to the US market. Additionally that data will be formatted to develop, substantiate, and exercise vehicle simulations with conventional and advanced powertrains.

  15. Wind Power Curve Modeling in Simple and Complex Terrain

    SciTech Connect (OSTI)

    Bulaevskaya, V.; Wharton, S.; Irons, Z.; Qualley, G.

    2015-02-09

    Our previous work on wind power curve modeling using statistical models focused on a location with a moderately complex terrain in the Altamont Pass region in northern California (CA). The work described here is the follow-up to that work, but at a location with a simple terrain in northern Oklahoma (OK). The goal of the present analysis was to determine the gain in predictive ability afforded by adding information beyond the hub-height wind speed, such as wind speeds at other heights, as well as other atmospheric variables, to the power prediction model at this new location and compare the results to those obtained at the CA site in the previous study. While we reach some of the same conclusions at both sites, many results reported for the CA site do not hold at the OK site. In particular, using the entire vertical profile of wind speeds improves the accuracy of wind power prediction relative to using the hub-height wind speed alone at both sites. However, in contrast to the CA site, the rotor equivalent wind speed (REWS) performs almost as well as the entire profile at the OK site. Another difference is that at the CA site, adding wind veer as a predictor significantly improved the power prediction accuracy. The same was true for that site when air density was added to the model separately instead of using the standard air density adjustment. At the OK site, these additional variables result in no significant benefit for the prediction accuracy.

  16. Vehicle Technologies Office Merit Review 2015: Low-Temperature Gasoline

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

    Combustion (LTGC) Engine Research | Department of Energy Low-Temperature Gasoline Combustion (LTGC) Engine Research Vehicle Technologies Office Merit Review 2015: Low-Temperature Gasoline Combustion (LTGC) Engine Research Presentation given by Sandia National Laboratories at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about low-temperature gasoline combustion engine research. PDF icon ace004_dec_2015_o.pdf More

  17. Energy Department Announces First Regional Gasoline Reserve to Strengthen

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

    Fuel Resiliency | Department of Energy First Regional Gasoline Reserve to Strengthen Fuel Resiliency Energy Department Announces First Regional Gasoline Reserve to Strengthen Fuel Resiliency May 2, 2014 - 10:29am Addthis News Media Contact 202-586-4940 WASHINGTON - As part of the Obama Administration's response to Superstorm Sandy, Energy Secretary Ernest Moniz today announced the creation of the first federal regional refined petroleum product reserve containing gasoline. Based on the

  18. Volume, cost and energy for the production of gasoline

    SciTech Connect (OSTI)

    Cortes-Islas, E.M.; Ramirez-Garcia, P.F. )

    1988-06-01

    The relationship between the growth of the petrochemical industry and increasing standards of living is well known. However, a detailed analysis of the lower energy consumption that characterizes oil-based products when compared to the equivalent traditional products, used, for instance, in the automobile, textile and construction industries, has not yet been carried out. This paper models the chemical processing industries. The information obtained with this approach permits the structuring of a technical data bank in such a way that the decision maker is able to choose between new processes or the development of existing ones. The model is illustrated with the processes involved in the production of gasoline obtained from crude oil remarking volume, cost and consumption of energy.

  19. FedEx Express Gasoline Hybrid Electric Delivery Truck Evaluation...

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

    ... comprises chassis dynamometer testing of two medium-duty FedEx Express delivery vehicles, a gasoline hybrid electric vehicle (GHEV) and a conventional diesel (baseline) vehicle. ...

  20. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

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

    of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information Administration Petroleum Marketing Annual 1997 Table 43....

  1. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

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

    1995 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per Day) - Continued Geographic Area Month Premium All Grades Sales...

  2. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

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

    2000 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per Day) - Continued Geographic Area Month Premium All Grades Sales...

  3. Petroleum Products Table 31. Motor Gasoline Prices by Grade...

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

    Annual 1995 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month Premium All...

  4. Petroleum Products Table 31. Motor Gasoline Prices by Grade...

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

    Annual 2000 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month Premium All...

  5. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

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

    of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information Administration Petroleum Marketing Annual 1996 Table 43....

  6. Petroleum Products Table 31. Motor Gasoline Prices by Grade...

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

    at end of table. 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 56 Energy Information Administration Petroleum Marketing Annual 1996 Table 31. Motor...

  7. Lean Gasoline System Development for Fuel Efficient Small Car...

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

    Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace063smith2012o.pdf More Documents & Publications Lean Gasoline System Development for Fuel ...

  8. Reductant Chemistry during LNT Regeneration for a Lean Gasoline...

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

    Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in ...

  9. Advantages of Oxygenates Fuels over Gasoline in Direct Injection...

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

    Advantages of Oxygenates Fuels over Gasoline in Direct Injection Spark Ignition Engines Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) ...

  10. Lean Gasoline System Development for Fuel Efficient Small Car...

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

    Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace063smith2013o.pdf More Documents & Publications Lean Gasoline System Development for Fuel ...

  11. ,"U.S. Reformulated, Average Refiner Gasoline Prices"

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

    ...www.eia.govdnavpetpetprirefmg2cnusepm0rdpgalm.htm" ,"Source:","Energy Information ... Reformulated Gasoline Retail Sales by Refiners (Dollars per ...

  12. ,"U.S. Conventional, Average Refiner Gasoline Prices"

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

    ...www.eia.govdnavpetpetprirefmg2cnusepm0udpgalm.htm" ,"Source:","Energy Information ... Conventional Gasoline Retail Sales by Refiners (Dollars per ...

  13. In Vitro Genotoxicity of Gasoline and Diesel Engine Vehicle Exhaust...

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

    and Semi-Volatile Organic Compound Materials In Vitro Genotoxicity of Gasoline and Diesel Engine Vehicle Exhaust Particulate and Semi-Volatile Organic Compound Materials 2002 ...

  14. Short-Term Energy Outlook April 1999-Summer Gasoline Outlook

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

    markets may be summarized as follows: * Pump Prices: (average regular) projected to ... sold by refiners to resellers. d Average pump price for regular gasoline. d Refinery ...

  15. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

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

    Information AdministrationPetroleum Marketing Annual 1999 Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and Selected States (Cents per...

  16. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

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

    Energy Information Administration Petroleum Marketing Annual 1995 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  17. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

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

    250 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State (Thousand Gallons...

  18. Table 32. Conventional Motor Gasoline Prices by Grade, Sales...

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

    Information Administration Petroleum Marketing Annual 1995 Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  19. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

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

    Energy Information Administration Petroleum Marketing Annual 1995 Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State (Thousand Gallons...

  20. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

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

    Petroleum Marketing Annual 1998 Table 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State (Thousand Gallons per Day) -...

  1. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

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

    134 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  2. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

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

    134 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  3. Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...

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

    220 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per...

  4. Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type...

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

    - - - - - - - - - - - - See footnotes at end of table. 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 116 Energy Information...

  5. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

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

    - - - - W W - - - - - - See footnotes at end of table. 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State 292 Energy...

  6. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

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

    Petroleum Marketing Annual 1999 Table 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State (Thousand Gallons per Day) -...

  7. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

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

    Information AdministrationPetroleum Marketing Annual 1998 Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and Selected States (Cents per...

  8. Table 32. Conventional Motor Gasoline Prices by Grade, Sales...

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

    - - - - W W - - - - - - See footnotes at end of table. 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 86 Energy Information...

  9. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

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

    Petroleum Marketing Annual 1995 Table 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State (Thousand Gallons per Day) -...

  10. Table 32. Conventional Motor Gasoline Prices by Grade, Sales...

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

    - - - - 64.7 64.7 - - - - - - See footnotes at end of table. 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 86 Energy Information...

  11. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

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

    250 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State (Thousand Gallons...

  12. Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...

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

    220 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per...

  13. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

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

    Information Administration Petroleum Marketing Annual 1995 Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  14. Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...

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

    Energy Information Administration Petroleum Marketing Annual 1995 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per...

  15. Table 32. Conventional Motor Gasoline Prices by Grade, Sales...

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

    Information AdministrationPetroleum Marketing Annual 1998 Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  16. Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type...

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

    Information Administration Petroleum Marketing Annual 1995 Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  17. Reformulated Gasoline Use Under the 8-Hour Ozone Rule

    Reports and Publications (EIA)

    2002-01-01

    This paper focuses on the impact on gasoline price and supply when additional ozone non-attainment areas come under the new 8-hour ozone standard.

  18. Diesel and Gasoline Engine Emissions: Characterization of Atmosphere...

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

    Diesel and Gasoline Engine Emissions: Characterization of Atmosphere Composition and Health Responses to Inhaled Emissions 2005 Diesel Engine Emissions Reduction (DEER) Conference ...

  19. Lean Gasoline System Development for Fuel Efficient Small Car...

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

    Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace063smith2011o.pdf More Documents & Publications Lean Gasoline System Development for Fuel ...

  20. Geographic Area Month Aviation Gasoline Kerosene-Type Jet Fuel

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

    District and State (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month Aviation Gasoline Kerosene-Type Jet Fuel Kerosene Sales to End Users Sales for Resale...

  1. Motor Gasoline Market Spring 2007 and Implications for Spring...

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

    began to decline, and with the transition from methyl tertiary butyl ether (MTBE) to ethanol completed and the end of the summer driving season drawing near, gasoline prices...

  2. Gasoline price shows small increase (long version)

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

    long version) The U.S. average retail price for regular gasoline showed little movement from last week. Prices rose 4/10 of a cent to $3.30 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the New England States, at 3.52 a gallon, down 1/10 of a penny from a week ago. Prices were lowest at 2.87 a gallon in the Rocky Mountain States, with the biggest regional price drop at close to 7 cents.

  3. Gasoline price up this week (long version)

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

    up this week (long version) The U.S. average retail price for regular gasoline rose to $3.32 a gallon on Monday. That's up 1.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. For the first time since early December pump prices were highest in the West Coast at 3.50 a gallon, up 1.2 cents from a week ago. For the fourth week in a row, prices were lowest in the Rocky Mountain States at 2.88 a gallon, up 1.3 cents.

  4. Gasoline price up this week (long version)

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

    long version) The U.S. average retail price for regular gasoline rose to $3.36 a gallon on Monday. That's up 4.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. For the second week in a row, pump prices were highest in the West Coast at 3.55 a gallon, up 4.2 cents from a week ago. Prices were lowest in the Rocky Mountain States at 2.98 a gallon, up 10.1 cents marking the greatest regional increase this week.

  5. Gasoline prices continue to decrease (long version)

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

    (long version) The U.S. average retail price for regular gasoline fell to $3.65 a gallon on Monday. That's down 3 1/2 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 region at 3.95 a gallon, down 1.7 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.48 a gallon, down 2.5 cents. This is Amerine Woodyard, with EIA, in Washington.

  6. Gasoline prices continue to decrease (long version)

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

    long version) The U.S. average retail price for regular gasoline fell to $3.50 a gallon on Monday. That's down 8.1 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 region at 3.89 a gallon, down 5.6 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.31 a gallon, down 6 1/2 cents.

  7. Gasoline prices continue to fall (long version)

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

    (long version) The U.S. average retail price for regular gasoline fell to $3.54 a gallon on Monday. That's down 6.6 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 region at 3.89 a gallon, down 4 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.36 a gallon, down 7.1 cents.

  8. Gasoline prices continue to fall (long version)

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

    long version) The U.S. average retail price for regular gasoline fell to $3.52 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. Pump 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 Gulf Coast States at 3.30 a gallon, down 2.9 cents.

  9. SEP Request for Approval Form 3 - Other Complex Regression Model Rationale

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

    | Department of Energy 3 - Other Complex Regression Model Rationale SEP Request for Approval Form 3 - Other Complex Regression Model Rationale File SEP-Request-for-Approval-Form-3_Other-Complex-Regression-Model-Rationale.docx More Documents & Publications Superior Energy Performance Enrollment and Application Forms SEP Request for Approval Form 5 - Model Does Not Satisfy 3.4.1-3.4.10 Requirements SEP Request for Approval Form 1 - Modeling of Data at Finer Intervals than Weekly

  10. Fact #824: June 9, 2014 EPA Sulfur Standards for Gasoline | Department...

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

    4: June 9, 2014 EPA Sulfur Standards for Gasoline Fact 824: June 9, 2014 EPA Sulfur Standards for Gasoline Sulfur naturally occurs in gasoline and diesel fuel, contributing to ...

  11. Effect of Intake Air Filter Condition on Light-Duty Gasoline Vehicles

    SciTech Connect (OSTI)

    Thomas, John F; Huff, Shean P; West, Brian H; Norman, Kevin M

    2012-01-01

    Proper maintenance can help vehicles perform as designed, positively affecting fuel economy, emissions, and the overall drivability. This effort investigates the effect of one maintenance factor, intake air filter replacement, with primary focus on vehicle fuel economy, but also examining emissions and performance. Older studies, dealing with carbureted gasoline vehicles, have indicated that replacing a clogged or dirty air filter can improve vehicle fuel economy and conversely that a dirty air filter can be significantly detrimental to fuel economy. The effect of clogged air filters on the fuel economy, acceleration and emissions of five gasoline fueled vehicles is examined. Four of these were modern vehicles, featuring closed-loop control and ranging in model year from 2003 to 2007. Three vehicles were powered by naturally aspirated, port fuel injection (PFI) engines of differing size and cylinder configuration: an inline 4, a V6 and a V8. A turbocharged inline 4-cylinder gasoline direct injection (GDI) engine powered vehicle was the fourth modern gasoline vehicle tested. A vintage 1972 vehicle equipped with a carburetor (open-loop control) was also examined. Results reveal insignificant fuel economy and emissions sensitivity of modern vehicles to air filter condition, but measureable effects on the 1972 vehicle. All vehicles experienced a measured acceleration performance penalty with clogged intake air filters.

  12. Woody Biomass Converted to Gasoline by Five-Company Team | Department of

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

    Energy Woody Biomass Converted to Gasoline by Five-Company Team Woody Biomass Converted to Gasoline by Five-Company Team October 22, 2015 - 10:50am Addthis A tanker picks up gasoline from the biorefinery. | Photo courtesy The Gas Technology Institute A tanker picks up gasoline from the biorefinery. | Photo courtesy The Gas Technology Institute A tanker picks up gasoline from the biorefinery. | Photo courtesy The Gas Technology Institute A tanker picks up gasoline from the biorefinery. |

  13. Advanced Gasoline Turbocharged Direction Injection (GTDI) Engine Development

    SciTech Connect (OSTI)

    Wagner, Terrance

    2015-12-31

    This program was undertaken in response to US Department of Energy Solicitation DE-FOA-0000079, resulting in a cooperative agreement with Ford and MTU to demonstrate improvement of fuel efficiency in a vehicle equipped with an advanced GTDI engine. Ford Motor Company has invested significantly in GTDI engine technology as a cost effective, high volume, fuel economy solution, marketed globally as EcoBoost technology. Ford envisions additional fuel economy improvement in the medium and long term by further advancing EcoBoost technology. The approach for the project was to engineer a comprehensive suite of gasoline engine systems technologies to achieve the project objectives, and to progressively demonstrate the objectives via concept analysis / computer modeling, single-cylinder and multi-cylinder engine testing on engine dynamometer, and vehicle level testing on chassis rolls.

  14. DOE's Gasoline/Diesel PM Split Study | Department of Energy

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

    4 Diesel Engine Emissions Reduction (DEER) Conference Presentation: National Renewable Energy Laboratory PDF icon 2004_deer_lawson.pdf More Documents & Publications DOE's Gasoline/Diesel PM Split Study DOE's Gasoline/Diesel PM Split Study Collaborative Lubricating Oil Study on Emissions (CLOSE) Project

  15. Gasoline Ultra Fuel Efficient Vehicle | Department of Energy

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

    2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace064_confer_2012_o.pdf More Documents & Publications Gasoline Ultra Fuel Efficient Vehicle Program Update Gasoline Ultra Fuel Efficient Vehicle

  16. Demand, Supply, and Price Outlook for Reformulated Motor Gasoline 1995

    Reports and Publications (EIA)

    1994-01-01

    Provisions of the Clean Air Act Amendments of 1990 designed to reduce ground-level ozone will increase the demand for reformulated motor gasoline in a number of U.S. metropolitan areas. This article discusses the effects of the new regulations on the motor gasoline market and the refining industry.

  17. U.S. gasoline prices continue to decrease (short version)

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

    gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell to $2.82 a gallon on Monday. That's down 7.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  18. U.S. gasoline prices continue to decrease (short version)

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

    gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell to $2.78 a gallon on Monday. That's down 4.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  19. U.S. gasoline prices continue to decrease (short version)

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

    gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell to $3.45 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

  20. U.S. gasoline prices continued to decreased (short version)

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

    U.S. gasoline prices continued to decreased (short version) The U.S. average retail price for regular gasoline fell to $3.24 a gallon on Monday. That's down 3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  1. U.S. gasoline prices decrease (Short version)

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

    6, 2015 U.S. gasoline prices decrease (Short version) The U.S. average retail price for regular gasoline fell to $2.41 a gallon on Monday. That's down 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  2. U.S. gasoline prices decrease (short version)

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

    6, 2014 U.S. gasoline prices decrease (short version) The U.S. average retail price for regular gasoline fell to $3.30 a gallon on Monday. That's down a nickel and a half from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard

  3. U.S. gasoline prices decrease (short version)

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

    gasoline prices decrease (short version) The U.S. average retail price for regular gasoline fell to $3.64 a gallon on Monday. That's down 4.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  4. U.S. gasoline prices unchanged (short version)

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

    gasoline prices decrease (short version) The U.S. average retail price for regular gasoline fell to $3.68 a gallon on Monday. That's down 2.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington

  5. Advanced Particulate Filter Technologies for Direct Injection Gasoline Engine Applications

    Broader source: Energy.gov [DOE]

    Specific designs and material properties have to be developed for gasoline particulate filters based on the different engine and exhaust gas characteristic of gasoline engines compared to diesel engines, e.g., generally lower levels of engine-out particulate emissions or higher GDI exhaust gas temperatures

  6. Lean Gasoline Engine Reductant Chemistry During Lean NOx Trap Regeneration

    SciTech Connect (OSTI)

    Choi, Jae-Soon; Prikhodko, Vitaly Y; Partridge Jr, William P; Parks, II, James E; Norman, Kevin M; Huff, Shean P; Chambon, Paul H; Thomas, John F

    2010-01-01

    Lean NOx Trap (LNT) catalysts can effectively reduce NOx from lean engine exhaust. Significant research for LNTs in diesel engine applications has been performed and has led to commercialization of the technology. For lean gasoline engine applications, advanced direct injection engines have led to a renewed interest in the potential for lean gasoline vehicles and, thereby, a renewed demand for lean NOx control. To understand the gasoline-based reductant chemistry during regeneration, a BMW lean gasoline vehicle has been studied on a chassis dynamometer. Exhaust samples were collected and analyzed for key reductant species such as H2, CO, NH3, and hydrocarbons during transient drive cycles. The relation of the reductant species to LNT performance will be discussed. Furthermore, the challenges of NOx storage in the lean gasoline application are reviewed.

  7. Assessment of Summer 1997 motor gasoline price increase

    SciTech Connect (OSTI)

    1998-05-01

    Gasoline markets in 1996 and 1997 provided several spectacular examples of petroleum market dynamics. The first occurred in spring 1996, when tight markets, following a long winter of high demand, resulted in rising crude oil prices just when gasoline prices exhibit their normal spring rise ahead of the summer driving season. Rising crude oil prices again pushed gasoline prices up at the end of 1996, but a warm winter and growing supplies weakened world crude oil markets, pushing down crude oil and gasoline prices during spring 1997. The 1996 and 1997 spring markets provided good examples of how crude oil prices can move gasoline prices both up and down, regardless of the state of the gasoline market in the United States. Both of these spring events were covered in prior Energy Information Administration (EIA) reports. As the summer of 1997 was coming to a close, consumers experienced yet another surge in gasoline prices. Unlike the previous increase in spring 1996, crude oil was not a factor. The late summer 1997 price increase was brought about by the supply/demand fundamentals in the gasoline markets, rather than the crude oil markets. The nature of the summer 1997 gasoline price increase raised questions regarding production and imports. Given very strong demand in July and August, the seemingly limited supply response required examination. In addition, the price increase that occurred on the West Coast during late summer exhibited behavior different than the increase east of the Rocky Mountains. Thus, the Petroleum Administration for Defense District (PADD) 5 region needed additional analysis (Appendix A). This report is a study of this late summer gasoline market and some of the important issues surrounding that event.

  8. GASOLINE VEHICLE EXHAUST PARTICLE SAMPLING STUDY

    SciTech Connect (OSTI)

    Kittelson, D; Watts, W; Johnson, J; Zarling, D Schauer,J Kasper, K; Baltensperger, U; Burtscher, H

    2003-08-24

    The University of Minnesota collaborated with the Paul Scherrer Institute, the University of Wisconsin (UWI) and Ricardo, Inc to physically and chemically characterize the exhaust plume from recruited gasoline spark ignition (SI) vehicles. The project objectives were: (1) Measure representative particle size distributions from a set of on-road SI vehicles and compare these data to similar data collected on a small subset of light-duty gasoline vehicles tested on a chassis dynamometer with a dilution tunnel using the Unified Drive Cycle, at both room temperature (cold start) and 0 C (cold-cold start). (2) Compare data collected from SI vehicles to similar data collected from Diesel engines during the Coordinating Research Council E-43 project. (3) Characterize on-road aerosol during mixed midweek traffic and Sunday midday periods and determine fleet-specific emission rates. (4) Characterize bulk- and size-segregated chemical composition of the particulate matter (PM) emitted in the exhaust from the gasoline vehicles. Particle number concentrations and size distributions are strongly influenced by dilution and sampling conditions. Laboratory methods were evaluated to dilute SI exhaust in a way that would produce size distributions that were similar to those measured during laboratory experiments. Size fractionated samples were collected for chemical analysis using a nano-microorifice uniform deposit impactor (nano-MOUDI). In addition, bulk samples were collected and analyzed. A mixture of low, mid and high mileage vehicles were recruited for testing during the study. Under steady highway cruise conditions a significant particle signature above background was not measured, but during hard accelerations number size distributions for the test fleet were similar to modern heavy-duty Diesel vehicles. Number emissions were much higher at high speed and during cold-cold starts. Fuel specific number emissions range from 1012 to 3 x 1016 particles/kg fuel. A simple relationship between number and mass emissions was not observed. Data were collected on-road to compare weekday with weekend air quality around the Twin Cities area. This portion of the study resulted in the development of a method to apportion the Diesel and SI contribution to on-road aerosol.

  9. Hige Compression Ratio Turbo Gasoline Engine Operation Using Alcohol Enhancement

    SciTech Connect (OSTI)

    Heywood, John; Jo, Young Suk; Lewis, Raymond; Bromberg, Leslie; Heywood, John

    2015-10-31

    The overall objective of this project was to quantify the potential for improving the performance and efficiency of gasoline engine technology by use of alcohols to suppress knock. Knock-free operation is obtained by direct injection of a second “anti-knock” fuel such as ethanol, which suppresses knock when, with gasoline fuel, knock would occur. Suppressing knock enables increased turbocharging, engine downsizing, and use of higher compression ratios throughout the engine’s operating map. This project combined engine testing and simulation to define knock onset conditions, with different mixtures of gasoline and alcohol, and with this information quantify the potential for improving the efficiency of turbocharged gasoline spark-ignition engines, and the on-vehicle fuel consumption reductions that could then be realized. The more focused objectives of this project were therefore to: Determine engine efficiency with aggressive turbocharging and downsizing and high compression ratio (up to a compression ratio of 13.5:1) over the engine’s operating range; Determine the knock limits of a turbocharged and downsized engine as a function of engine speed and load; Determine the amount of the knock-suppressing alcohol fuel consumed, through the use of various alcohol-gasoline and alcohol-water gasoline blends, for different driving cycles, relative to the gasoline consumed; Determine implications of using alcohol-boosted engines, with their higher efficiency operation, in both light-duty and medium-duty vehicle sectors.

  10. Microsoft Word - Summer 2006 Motor Gasoline Prices.doc

    Gasoline and Diesel Fuel Update (EIA)

    1 STEO Supplement: Summer 2006 Motor Gasoline Prices This supplement to the July 2006 Short-Term Energy Outlook (STEO) examines the various factors that have contributed to this summer's high gasoline prices and discusses how they may continue to impact markets over the next several months. EIA's forecast of the retail price of regular gasoline for the summer 2006 driving season (April 1 through September 30) has been revised steadily upwards from $2.62 per gallon in the April STEO to $2.88 per

  11. Fact #869: April 20, 2015 Gasoline Direct Injection Captures...

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

    Gasoline Direct Injection Captures 38% Market Share in Just Seven Years from First Significant Use File fotw869web.xlsx More Documents & Publications Fact 905: December 28, 2015 ...

  12. U.S. gasoline prices decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    price for regular gasoline fell to 3.46 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...

  13. U.S. gasoline prices continue to decrease (short version)

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

    retail price for regular gasoline fell to 3.51 a gallon on Monday. That's down a penny from a week ago and down 13 cents from a month ago, based on the weekly price survey...

  14. U.S. gasoline prices continues to decrease (short version)

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

    retail price for regular gasoline fell to 2.32 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...

  15. U.S. gasoline prices decrease (Short version)

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

    price for regular gasoline fell to 2.45 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...

  16. U.S. gasoline prices unchanged (short version)

    Gasoline and Diesel Fuel Update (EIA)

    (short version) The U.S. average retail price for regular gasoline fell for the 5 th week in a row to 3.52 a gallon on Monday. That's down 2.4 cents from a week ago and...

  17. U.S. gasoline prices continue to increase (short version)

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

    continue to increase (short version) The U.S. average retail price for regular gasoline rose to 2.74 a gallon on Monday. That's up 5.3 cents from a week ago, based on the weekly...

  18. U.S. gasoline prices increase slightly (short version)

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

    short version) The U.S. average retail price for regular gasoline rose slightly to 3.55 a gallon on Monday. That's up 2-tenths of a penny from a week ago, based on the weekly...

  19. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    continue to increase (short version) The U.S. average retail price for regular gasoline rose to 2.49 a gallon on Monday. That's up 1.4 cents from a week ago, based on the weekly...

  20. U.S. gasoline prices increase slightly (short version)

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

    short version) The U.S. average retail price for regular gasoline rose slightly to 3.36 a gallon on Monday. That's up 6-tenths of a penny from a week ago, based on the weekly...

  1. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to 3.68 a gallon on Monday. That's up 4 12 cents from a week ago, based on the weekly price survey by the...

  2. U.S. gasoline prices continue to increase (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to 3.61 a gallon on Labor Day Monday. That's up 5.6 cents from a week ago, based on the weekly price survey...

  3. U.S. gasoline prices continue to increase (short version)

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

    continue to increase (short version) The U.S. average retail price for regular gasoline rose to 2.77 a gallon on Memorial Day Monday. That's up 3 cents from a week ago, based on...

  4. U.S. gasoline prices continue to increase (short version)

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

    continue to increase (short version) The U.S. average retail price for regular gasoline rose to 2.69 a gallon on Monday. That's up 2.7 cents from a week ago, based on the weekly...

  5. U.S. gasoline prices continue to increase (short version)

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

    increase (short version) The U.S. average retail price for regular gasoline rose to 2.66 a gallon on Monday. That's up 9.4 cents from a week ago, based on the weekly price survey...

  6. U.S. gasoline prices increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to 2.03 a gallon on Monday. That's up 8- tenths of a penny from a week ago, based on the weekly price survey...

  7. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to 3.29 a gallon on Monday. That's up 7.4 cents from a week ago, based on the weekly price survey by the...

  8. U.S. gasoline continue to increase (short version)

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

    continue to increase (short version) The U.S. average retail price for regular gasoline rose to 3.33 a gallon on Monday. That's up 6 cents from a week ago, based on the weekly...

  9. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    continue to increase (short version) The U.S. average retail price for regular gasoline rose to 2.78 a gallon on Monday. That's up 6- tenths of a penny from a week ago, based on...

  10. U.S. gasoline continue to increase (short version)

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

    continue to increase (short version) The U.S. average retail price for regular gasoline rose to 3.33 a gallon on Monday. That's up 1- tenth of a penny from a week ago, based on...

  11. U.S. Gasoline prices continue increase (short version)

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

    continue to increase (short version) The U.S. average retail price for regular gasoline rose to 3.69 a gallon on Monday. That's up 1.6 cents from a week ago, based on the weekly...

  12. U.S. gasoline prices continue to decrease (short version)

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

    gasoline fell 5.4 cents from a week ago to 3.54 a gallon on Monday. This marks the first time since early March that prices have dipped below 3.55, based on the weekly price...

  13. U.S. gasoline prices unchanged (short version)

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

    gasoline fell 4.2 cents from a week ago to 3.59 a gallon on Monday. This marks the first time since early April that prices have dipped below 3.60, based on the weekly price...

  14. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

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

    - - 466.1 466.1 See footnotes at end of table. 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State 356 Energy Information...

  15. Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...

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

    253.2 2,222.4 W W 206.4 134.3 - 340.7 See footnotes at end of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information...

  16. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

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

    - - 532.1 532.1 See footnotes at end of table. 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State 356 Energy Information...

  17. Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...

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

    150.0 2,026.7 W W 234.5 161.7 - 396.3 See footnotes at end of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information...

  18. U.S. gasoline prices decrease (long version)

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

    April 6, 2015 U.S. gasoline prices decrease (long version) The U.S. average retail price ... Pump prices were highest in the West Coast states at 2.95 a gallon, down 4.6 cents from a ...

  19. U.S. gasoline prices continue to decrease (long version)

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

    , 2014 U.S. gasoline prices continue to decrease (long version) The U.S. average retail ... Pump prices were highest in the West Coast states at 3.02 a gallon, down 3.2 cents from a ...

  20. U.S. gasoline prices show little movement (long version)

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

    30, 2014 U.S. gasoline prices show little movement (long version) The U.S. average retail ... Pump prices were highest in the West Coast states at 4.04 a gallon, up 2 cents from a ...

  1. U.S. gasoline prices continue to increase (long version)

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

    9, 2015 U.S. gasoline prices continue to increase (long version) The U.S. average retail ... Pump prices were highest in the West Coast states at 3.18 a gallon, up 5.2 cents from a ...

  2. U.S. gasoline prices continue to increase (long version)

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

    26, 2015 U.S. gasoline prices continue to increase (long version) The U.S. average retail ... Pump prices were highest in the West Coast states at 3.49 a gallon, down 2.6 cents from a ...

  3. U.S. gasoline prices continue to increase (long version)

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

    June 1, 2015 U.S. gasoline prices continue to increase (long version) The U.S. average ... Pump prices were highest in the West Coast states at 3.44 a gallon, down 4.3 cents from a ...

  4. U.S. gasoline prices show little movement (long version)

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

    1, 2014 U.S. gasoline prices decrease for third week in a row (long version) The U.S. ... This marks the first time since early April that prices have dipped below 3.60, based on ...

  5. U.S. gasoline prices decrease (long version)

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

    0, 2015 U.S. gasoline prices decrease (long version) The U.S. average retail price for ... Pump prices were highest in the West Coast states at 3 a gallon, down 4.7 cents from a ...

  6. U.S. gasoline prices continue to decrease (long version)

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

    1, 2014 U.S. gasoline prices continue to decrease (long version) The U.S. average retail ... Pump prices were highest in the West Coast states at 3.87 a gallon, down 2.1 cents from a ...

  7. U.S. gasoline prices show little movement (long version)

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

    August 4, 2014 U.S. gasoline prices decrease for fifth week in a row (long version) The ... Pump prices were highest in the West Coast states at 3.89 a gallon, down 3.1 cents from a ...

  8. U.S. gasoline prices continue to increase (long version)

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

    8, 2015 U.S. gasoline prices continue to increase (long version) The U.S. average retail ... Pump prices were highest in the West Coast states at 3.51 a gallon, up 6.9 cents from a ...

  9. U.S. gasoline prices decrease (long version)

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

    4, 2014 U.S. gasoline prices decrease (long version) The U.S. average retail price for ... Pump prices were highest in the West Coast states at 4 a gallon, down 3.6 cents from a ...

  10. U.S. gasoline prices continued to decreased (long version)

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

    6, 2013 U.S. gasoline prices continued to decreased (long version) The U.S. average retail ... Pump prices were highest in the New England region at 3.51 a gallon, up 1.4 cents from a ...

  11. U.S. gasoline prices decrease (long version)

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

    6, 2014 U.S. gasoline prices decrease (long version) The U.S. average retail price for ... Pump prices were highest in the West Coast states at 3.61 a gallon, down 3 cents from a ...

  12. U.S. gasoline prices show little movement (long version)

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

    7, 2014 U.S. gasoline prices decrease (long version) The U.S. average retail price for ... Pump prices were highest in the West Coast states at 4.04 a gallon, up a tenth of a penny ...

  13. U.S. gasoline prices decrease (long version)

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

    September 8, 2014 U.S. gasoline prices decrease (long version) The U.S. average retail ... Pump prices were highest in the West Coast states at 3.77 a gallon, down 2.3 cents from a ...

  14. U.S. Gasoline prices continue to decrease (Long version)

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

    , 2014 U.S. Gasoline prices continue to increase (long version) The U.S. average retail ... Pump prices were highest in the West Coast states at 4.01 a gallon, up 3-tenths of a penny ...

  15. U.S. gasoline prices decrease (short version)

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

    price for regular gasoline fell to 2.18 a gallon on Monday. That's down 5.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  16. U.S. gasoline price continues to increase (short version)

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

    price for regular gasoline rose to 2.47 a gallon on Monday. That's up 14.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  17. U.S. gasoline price continue to decrease (short version)

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

    price for regular gasoline fell to 2.69 a gallon on Monday. That's down 5.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  18. U.S. gasoline prices decrease (short version)

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

    price for regular gasoline fell to 2.07 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.

  19. U.S. gasoline price increases (short version)

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

    price for regular gasoline rose to 2.83 a gallon on Monday. That's up 4.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  20. U.S. gasoline price decrease (short version)

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

    for regular gasoline dropped to 2.80 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

  1. U.S. summer gasoline prices dive this year

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

    In its new monthly forecast, the U.S. Energy Information Administration said the price for regular-grade gasoline will average 2.04 per gallon this summer. That's down about 60 ...

  2. U.S. gasoline price decreases (short version)

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

    price for regular gasoline fell to 2.64 a gallon on Monday. That's down 7.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  3. U.S. gasoline price continues to decrease (short version)

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

    regular gasoline fell to 2.79 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

  4. U.S. gasoline prices decrease (short version)

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

    price for regular gasoline fell to 2.28 a gallon on Monday. That's down 6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  5. U.S. gasoline price continue to decrease (short version)

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

    price for regular gasoline fell to 2.63 a gallon on Monday. That's down 6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  6. U.S. gasoline price increases (short version)

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

    price for regular gasoline rose to 2.24 a gallon on Monday. That's up 2.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  7. U.S. gasoline price continues to increase (short version)

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

    price for regular gasoline rose to 2.19 a gallon on Monday. That's up 12.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  8. U.S. gasoline prices remain steady (short version)

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

    average retail price for regular gasoline remained unchanged this week at 2.78 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration

  9. U.S. gasoline price increases this week (short version)

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

    regular gasoline rose to 2.46 a gallon on Monday. That's up 4 tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  10. U.S. gasoline price continue to decrease (short version)

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

    price for regular gasoline rose to 2.72 a gallon on Monday. That's up 8.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  11. Summer gasoline price forecast slightly higher, but drivers still...

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

    In its new monthly forecast, the U.S. Energy Information Administration said the retail price for regular grade gasoline will average 2.21 per gallon this summer. While that's 17 ...

  12. U.S. gasoline price continues to decrease (long version)

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

    regular gasoline fell to 2.32 a gallon on Monday. That's down 4-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. ...

  13. U.S. gasoline price continues to increase (short version)

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

    price for regular gasoline rose to 2.33 a gallon on Monday. That's up 5.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  14. U.S. Gasoline Price Continues to Increase (Short version)

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

    price for regular gasoline rose to 2.27 a gallon on Monday. That's up 8.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  15. U.S. gasoline prices increase (short version)

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

    price for regular gasoline rose to 2.14 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.

  16. U.S. average gasoline price up slightly

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

    gasoline rose slightly to 3.65 a gallon on Monday. That's up a tenth of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. ...

  17. Gasoline Compression Ignition - Start of Injection Timing Sweep...

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

    Contact Us For more information, contact Greg Cunningham at (630) 252-8232 or media@anl.gov. Gasoline Compression Ignition - Start of Injection Timing Sweep (VERIFI) Share Topic...

  18. Fact #639: September 6, 2010 Gasoline Tax Rates by State

    Broader source: Energy.gov [DOE]

    The Federal Excise Tax on motor gasoline is 18.4 cents per gallon for all states. Each state applies additional taxes which vary from state to state. As of July 2010, Alaska had the lowest overall...

  19. Fact #915: March 7, 2016 Average Historical Annual Gasoline Pump...

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

    Average Historical Annual Gasoline Pump Price, 1929-2015 File fotw915web.xlsx More Documents & Publications Fact 888: August 31, 2015 Historical Gas Prices - Dataset Fact 835: ...

  20. Process for conversion of lignin to reformulated hydrocarbon gasoline

    DOE Patents [OSTI]

    Shabtai, Joseph S. (Salt Lake City, UT); Zmierczak, Wlodzimierz W. (Salt Lake City, UT); Chornet, Esteban (Golden, CO)

    1999-09-28

    A process for converting lignin into high-quality reformulated hydrocarbon gasoline compositions in high yields is disclosed. The process is a two-stage, catalytic reaction process that produces a reformulated hydrocarbon gasoline product with a controlled amount of aromatics. In the first stage, a lignin material is subjected to a base-catalyzed depolymerization reaction in the presence of a supercritical alcohol as a reaction medium, to thereby produce a depolymerized lignin product. In the second stage, the depolymerized lignin product is subjected to a sequential two-step hydroprocessing reaction to produce a reformulated hydrocarbon gasoline product. In the first hydroprocessing step, the depolymerized lignin is contacted with a hydrodeoxygenation catalyst to produce a hydrodeoxygenated intermediate product. In the second hydroprocessing step, the hydrodeoxygenated intermediate product is contacted with a hydrocracking/ring hydrogenation catalyst to produce the reformulated hydrocarbon gasoline product which includes various desirable naphthenic and paraffinic compounds.

  1. U.S. gasoline prices continue to decrease (short version)

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

    long version) The U.S. average retail price for regular gasoline fell to its lowest level since April 2009 to 2.04 a gallon on Monday. That's down 1.6 cents from a week ago, based ...

  2. U.S. gasoline prices decrease (short version)

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

    decrease (short version) The U.S. average retail price for regular gasoline fell to its lowest level of the year at 3.21 a gallon on Monday. That's down 9.2 cents from a week ...

  3. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to its lowest level since April 2009 to 2.04 a gallon on Monday. That's down 1.6 cents from a week ago, ...

  4. U.S. gasoline consumption highest in 8 years

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

    In its new monthly forecast, the U.S. Energy Information Administration said gasoline consumption increased by 2.7% during the first eight months of 2015 and should rise by an ...

  5. U.S. Aviation Gasoline Refiner Sales Volumes

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

    Product: Aviation Gasoline Kerosene-Type Jet Fuel Propane (Consumer Grade) Kerosene No. 1 ... Product Sales Type Area Sep-15 Oct-15 Nov-15 Dec-15 Jan-16 Feb-16 View History Sales to ...

  6. Gasoline prices fall for first time this year (short version...

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

    short version) The U.S. average retail price for regular gasoline fell for the first time this year to 3.76 a gallon on Monday. That's down 2 12 cents from a week ago, based on ...

  7. Gasoline prices increase for first time since February (short...

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

    (short version) The U.S. average retail price for regular gasoline rose for the first time since February to 3.54 a gallon on Monday. That's up 1.8 cents from a week ago, based ...

  8. Gasoline prices decrease nationally for first time in 4 weeks...

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

    (short version) The U.S. average retail price for regular gasoline fell for the first time in three weeks to 3.67 a gallon on Monday. That's down 1.6 cents from a week ago, ...

  9. Gasoline prices increase for first time since February (long...

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

    (long version) The U.S. average retail price for regular gasoline rose for the first time since February to 3.54 a gallon on Monday. That's up 1.8 cents from a week ago, based on ...

  10. Gasoline prices fall for first time this year (long version)

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

    long version) The U.S. average retail price for regular gasoline fell for the first time this year to 3.76 a gallon on Monday. That's down 2 12 cents from a week ago, based on ...

  11. EIA-878 Motor Gasoline Price Survey - Reference Guide

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

    Price Survey (EIA-878), prices are collected for the following gasoline grades as defined by octane rating and ethanol content (ranging from no ethanol through up to 10% ethanol). ...

  12. 3-Cylinder Turbocharged Gasoline Direct Injection: A High Value...

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

    ...% CO2 reduction) at a significantly lower on-cost. PDF icon deer09kirwan.pdf More Documents & Publications Gasoline Ultra Fuel Efficient Vehicle Reducing the Particulate Emission ...

  13. Gasoline and the Environment - Energy Explained, Your Guide To

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

    Understanding Energy - Energy Information Administration Gasoline > Gasoline & the Environment Energy Explained - Home What Is Energy? Forms of Energy Sources of Energy Laws of Energy Units and Calculators Energy Conversion Calculators British Thermal Units (Btu) Degree-Days U.S. Energy Facts State and U.S. Territory Data Use of Energy In Industry For Transportation In Homes In Commercial Buildings Efficiency and Conservation Energy and the Environment Greenhouse Gases Effect on the

  14. Improving Ethanol-Gasoline Blends by Addition of Higher Alcohols |

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

    Department of Energy Mixtures of ethanol, gasoline, and higher alcohols were evaluated to determine if they offer superior performance to ethanol/gasoline blends in meeting the Renewal Fuels Standard II. PDF icon deer12_ickes.pdf More Documents & Publications Vehicle Certification Test Fuel and Ethanol Flex Fuel Quality Impact of ethanol and butanol as oxygenates on SIDI engine efficiency and emissions using steady-state and transient test procedures Drop In Fuels: Where the Road Leads

  15. Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine |

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

    Department of Energy Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. PDF icon p-09_parks.pdf More Documents & Publications Development of Optimal Catalyst Designs and Operating Strategies for Lean NOx Reduction in Coupled LNT-SCR Systems Emissions Control for Lean Gasoline Engines Emissions Control for Lean Gasoline Engines

  16. Restructuring: The Changing Face of Motor Gasoline Marketing

    Reports and Publications (EIA)

    2001-01-01

    This report reviews the U.S. motor gasoline marketing industry during the period 1990 to 1999, focusing on changes that occurred during the period. The report incorporates financial and operating data from the Energy Information Administration's Financial Reporting System (FRS), motor gasoline outlet counts collected by the National Petroleum News from the states, and U.S. Census Bureau salary and employment data published in County Business Patterns.

  17. NREL's System Advisor Model Simplifies Complex Energy Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    The energy market is diversifying. In addition to traditional power sources, decision makers can choose among solar, wind, and geothermal technologies as well. Each of these technologies has complex performance characteristics and economics that vary with location and other project specifics, making it difficult to analyze the viability of such projects. But that analysis is easier now, thanks to the National Renewable Energy Laboratory (NREL).

  18. The motor gasoline industry: Past, present, and future. [Contains glossary

    SciTech Connect (OSTI)

    Not Available

    1991-01-01

    Motor gasoline constitutes the largest single component of US demand for petroleum products and is the Nation's most widely used transportation fuel. Because of its importance as a transportation fuel, motor gasoline has been the focus of several regulatory and tax policy initiatives in recent years. Much of the US refining capacity is specifically geared toward maximizing motor gasoline production, and future investments by the petroleum industry in refining infrastructure are likely to be made largely to produce larger volumes of clean motor gasoline. This report addresses major events and developments that have had an impact on motor gasoline supply, distribution, prices, and demand. The report provides historical perspective as well as analyses of important events from the 1970's and 1980's. Long-term forecasts are provided for the period from 1990 to 2010 in an effort to present and analyze possible future motor gasoline trends. Other forecasts examine the near-term impact of the invasion of Kuwait. 18 figs., 10 tabs.

  19. Development of Surface Complexation Models of Cr(VI) Adsorption...

    Office of Scientific and Technical Information (OSTI)

    Cr(VI) Adsorption on Soils, Sediments and Model Mixtures of Kaolinite, Montmorillonite, ... into aquifers and shallow sediments and soils via many anthropogenic activities. ...

  20. The complex chemistry of combustion | Argonne National Laboratory

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

    This article was published in the spring 2016 issue of Argonne Now, the laboratory science magazine. Click for the rest of the issue. Argonne researchers are studying gasoline compression ignition as a way to combine the efficiency of diesel with the cleanliness of gasoline engines. Simulations at the Argonne Leadership Computing Facility model the combustion, above. Image courtesy Ray Bair & Sibendu Som; click to view larger. Argonne researchers are studying gasoline compression ignition as

  1. Is there hope for multi-site complexation modeling?

    SciTech Connect (OSTI)

    Bickmore, Barry R.; Rosso, Kevin M.; Mitchell, S. C.

    2006-06-06

    It has been shown here that the standard formulation of the MUSIC model does not deliver the molecular-scale insight into oxide surface reactions that it promises. The model does not properly divide long-range electrostatic and short-range contributions to acid-base reaction energies, and it does not treat solvation in a physically realistic manner. However, even if the current MUSIC model does not succeed in its ambitions, its ambitions are still reasonable. It was a pioneering attempt in that Hiemstra and coworkers recognized that intrinsic equilibrium constants, where the effects of long-range electrostatic effects have been removed, must be theoretically constrained prior to model fitting if there is to be any hope of obtaining molecular-scale insights from SCMs. We have also shown, on the other hand, that it may be premature to dismiss all valence-based models of acidity. Not only can some such models accurately predict intrinsic acidity constants, but they can also now be linked to the results of molecular dynamics simulations of solvated systems. Significant challenges remain for those interested in creating SCMs that are accurate at the molecular scale. It will only be after all model parameters can be predicted from theory, and the models validated against titration data that we will be able to begin to have some confidence that we really are adequately describing the chemical systems in question.

  2. Space-time complexity in solid state models

    SciTech Connect (OSTI)

    Bishop, A.R.

    1985-01-01

    In this Workshop on symmetry-breaking it is appropriate to include the evolving fields of nonlinear-nonequilibrium systems in which transitions to and between various degrees of ''complexity'' (including ''chaos'') occur in time or space or both. These notions naturally bring together phenomena of pattern formation and chaos and therefore have ramifications for a huge array of natural sciences - astrophysics, plasmas and lasers, hydrodynamics, field theory, materials and solid state theory, optics and electronics, biology, pattern recognition and evolution, etc. Our particular concerns here are with examples from solid state and condensed matter.

  3. NREL's System Advisor Model Simplifies Complex Energy Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01

    NREL has developed a tool -- the System Advisor Model (SAM) -- that can help decision makers analyze cost, performance, and financing of any size grid-connected solar, wind, or geothermal power project. Manufacturers, engineering and consulting firms, research and development firms, utilities, developers, venture capital firms, and international organizations use SAM for end-to-end analysis that helps determine whether and how to make investments in renewable energy projects.

  4. MTBE, Oxygenates, and Motor Gasoline (Released in the STEO October 1999)

    Reports and Publications (EIA)

    1999-01-01

    The blending of methyl tertiary butyl ether (MTBE) into motor gasoline has increased dramatically since it was first produced 20 years ago. MTBE usage grew in the early 1980's in response to octane demand resulting initially from the phaseout of lead from gasoline and later from rising demand for premium gasoline. The oxygenated gasoline program stimulated an increase in MTBE production between 1990 and 1994. MTBE demand increased from 83,000 in 1990 to 161,000 barrels per day in 1994. The reformulated gasoline (RFG) program provided a further boost to oxygenate blending. The MTBE contained in motor gasoline increased to 269,000 barrels per day by 1997.

  5. Novel Characterization of GDI Engine Exhaust for Gasoline and Mid-Level Gasoline-Alcohol Blends

    SciTech Connect (OSTI)

    Storey, John Morse; Lewis Sr, Samuel Arthur; Szybist, James P; Thomas, John F; Barone, Teresa L; Eibl, Mary A; Nafziger, Eric J; Kaul, Brian C

    2014-01-01

    Gasoline direct injection (GDI) engines can offer improved fuel economy and higher performance over their port fuel-injected (PFI) counterparts, and are now appearing in increasingly more U.S. and European vehicles. Small displacement, turbocharged GDI engines are replacing large displacement engines, particularly in light-duty trucks and sport utility vehicles, in order for manufacturers to meet more stringent fuel economy standards. GDI engines typically emit the most particulate matter (PM) during periods of rich operation such as start-up and acceleration, and emissions of air toxics are also more likely during this condition. A 2.0 L GDI engine was operated at lambda of 0.91 at typical loads for acceleration (2600 rpm, 8 bar BMEP) on three different fuels; an 87 anti-knock index (AKI) gasoline (E0), 30% ethanol blended with the 87 AKI fuel (E30), and 48% isobutanol blended with the 87 AKI fuel. E30 was chosen to maximize octane enhancement while minimizing ethanol-blend level and iBu48 was chosen to match the same fuel oxygen level as E30. Particle size and number, organic carbon and elemental carbon (OC/EC), soot HC speciation, and aldehydes and ketones were all analyzed during the experiment. A new method for soot HC speciation is introduced using a direct, thermal desorption/pyrolysis inlet for the gas chromatograph (GC). Results showed high levels of aromatic compounds were present in the PM, including downstream of the catalyst, and the aldehydes were dominated by the alcohol blending.

  6. Gasoline and Diesel Fuel Update - Energy Information Administration

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

    all petroleum reports Gasoline and Diesel Fuel Update Gasoline Release Date: May 23, 2016 | Next Release Date: May 31, 2016 Diesel Fuel Release Date: May 23, 2016 | Next Release Date: May 31, 2016 U.S. Regular Gasoline Prices* (dollars per gallon)full history Change from 05/09/16 05/16/16 05/23/16 week ago year ago U.S. 2.220 2.242 2.300 values are up 0.058 values are down -0.474 East Coast (PADD1) 2.217 2.216 2.248 values are up 0.032 values are down -0.418 New England (PADD1A) 2.270 2.263

  7. Electrical impedance tomography of the 1995 OGI gasoline release

    SciTech Connect (OSTI)

    Daily, W.; Ramirez, A.

    1996-10-01

    Electrical impedance tomography (EIT) was used to image the plume resulting from a release of 378 liters (100 gallons) of gasoline into a sandy acquifer. Images were made in 5 planes before and 5 times during the release, to generate a detailed picture of the spatial as well as the temporal development of the plume as it spread at the water table. Information of the electrical impedance (both in phase and out of phase voltages) was used or several different frequencies to produce images. We observed little dispersion in the images either before or after the gasoline entered the acquifer. Likewise, despite some laboratory measurements of impedances, there was no evidence of a change in the reactance in the soil because of the gasoline.

  8. TRITIUM PERMEATION AND TRANSPORT IN THE GASOLINE PRODUCTION SYSTEM COUPLED WITH HIGH TEMPERATURE GAS-COOLED REACTORS (HTGRS)

    SciTech Connect (OSTI)

    Chang H. Oh; Eung S. Kim; Mike Patterson

    2011-05-01

    This paper describes scoping analyses on tritium behaviors in the HTGR-integrated gasoline production system, which is based on a methanol-to-gasoline (MTG) plant. In this system, the HTGR transfers heat and electricity to the MTG system. This system was analyzed using the TPAC code, which was recently developed by Idaho National Laboratory. The global sensitivity analyses were performed to understand and characterize tritium behaviors in the coupled HTGR/MTG system. This Monte Carlo based random sampling method was used to evaluate maximum 17,408 numbers of samples with different input values. According to the analyses, the average tritium concentration in the product gasoline is about 3.0510-3 Bq/cm3, and 62 % cases are within the tritium effluent limit (= 3.7x10-3 Bq/cm3[STP]). About 0.19% of released tritium is finally transported from the core to the gasoline product through permeations. This study also identified that the following four parameters are important concerning tritium behaviors in the HTGR/MTG system: (1) tritium source, (2) wall thickness of process heat exchanger, (3) operating temperature, and (4) tritium permeation coefficient of process heat exchanger. These four parameters contribute about 95 % of the total output uncertainties. This study strongly recommends focusing our future research on these four parameters to improve modeling accuracy and to mitigate tritium permeation into the gasol ine product. If the permeation barrier is included in the future study, the tritium concentration will be significantly reduced.

  9. U.S. gasoline price decreases for 17th week in a row (short version...

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

    gasoline price decreases for 17th week in a row (short version) The U.S. average retail price for regular gasoline fell for the 17th week in a row to 2.04 a gallon on Monday....

  10. U.S. gasoline prices continues to decrease; 2 states with sub...

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

    5, 2015 U.S. gasoline prices continues to decrease; 2 states with sub 2 prices (long version) The U.S. average retail price for regular gasoline fell to 2.21 a gallon on Monday. ...

  11. Lower crude oil prices to help push down gasoline pricesLower...

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

    Lower crude oil prices to help push down gasoline prices Falling crude oil prices should lead to lower U.S. retail gasoline prices this year compared to last year. The U.S. Energy ...

  12. U.S. gasoline prices expected to be cheaper in the second half...

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

    gasoline prices expected to be cheaper in the second half of 2013 U.S. retail gasoline prices should be slightly lower during the second half of 2013. In its new monthly energy ...

  13. U.S. gasoline prices continues to decrease at lowest level since...

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

    5, 2015 U.S. gasoline prices continues to decrease at lowest level since May 2009; 2 states with sub 2 prices (short version) The U.S. average retail price for regular gasoline ...

  14. U.S. average gasoline and diesel fuel prices expected to be slightly...

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

    average gasoline and diesel fuel prices expected to be slightly lower in 2013 than in 2012 ... Diesel fuel will continue to cost more than gasoline because of strong global demand for ...

  15. Motor Gasoline Consumption 2008 - Historical Perspective and Short-Term Projections

    Reports and Publications (EIA)

    2008-01-01

    This report reviews how gasoline markets relate to population, income, prices, and the growing role of ethanol. It also analyzes the structural shift in motor gasoline markets that took place in the late 1990s.

  16. U.S. gasoline price expected to drop further below $3 per gallon

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

    Declining fuel prices to push U.S. gasoline demand to an 8-year high In its new forecast, the U.S. Energy Information Administration said domestic gasoline consumption this year ...

  17. Fact #675: May 16, 2011 Gasoline Prices by Region, May 2, 2011

    Office of Energy Efficiency and Renewable Energy (EERE)

    The West Coast region paid the highest prices for gasoline averaging $4.14 for a gallon of regular gasoline while the Rocky Mountain region paid the least at $3.70 per gallon. The southern states,...

  18. U.S. gasoline prices increase for first time in four weeks

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

    gasoline price at lowest level since November 2010 (short version) The U.S. average retail price for regular gasoline fell to 2.94 a gallon on Monday. That's down 5.2 cents from a ...

  19. U.S. gasoline price decrease for first time in seven weeks (short...

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

    gasoline prices remain flat (short version) The U.S. average retail price for regular gasoline fell to 2.41 a gallon on Monday. That's down half a penny from a week ago, based on ...

  20. U.S. gasoline increase for the first time in four weeks (long...

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

    gasoline increase for the first time in four weeks (long version) The U.S. average retail price for regular gasoline rose for the first time in 4 weeks to 3.27 a gallon on Monday. ...

  1. U.S. gasoline prices increase for first time in a month (long...

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

    gasoline prices increase for first time in a month (long version) The U.S. average retail price for regular gasoline rose for the first time in a month to 2.49 a gallon on Monday. ...

  2. U.S. gasoline price decrease for first time in seven weeks ...

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

    6, 2015 U.S. gasoline price decrease for first time in seven weeks (long version) The U.S. average retail price for regular gasoline fell to 2.45 a gallon on Monday. That's down ...

  3. U.S. gasoline price decrease for first time in seven weeks (short...

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

    gasoline price decrease for first time in seven weeks (short version) The U.S. average retail price for regular gasoline fell to 2.45 a gallon on Monday. That's down 3.4 cents ...

  4. Gasoline prices increase for first time in 5 weeks (short version...

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

    Gasoline prices increase for first time in 5 weeks (short version) The U.S. average retail price for regular gasoline rose for the first time in 5 weeks to 3.31 a gallon on Monday. ...

  5. U.S. gasoline price decrease for first time in seven weeks ...

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

    3, 2015 U.S. gasoline prices remain flat (long version) The U.S. average retail price for regular gasoline fell to 2.41 a gallon on Monday. That's down half a penny from a week ...

  6. U.S. gasoline price decrease for first time in seven weeks (short...

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

    gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to 2.57 a gallon on Monday. That's up 8 cents from a week ago, ...

  7. Gasoline prices increase for first time in 5 weeks (long version...

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

    Gasoline prices increase for first time in 5 weeks (long version) The U.S. average retail price for regular gasoline rose for the first time in 5 weeks to 3.31 a gallon on Monday. ...

  8. U.S. gasoline prices increase for first time since June (long...

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

    September 2, 2014 U.S. gasoline prices increase for first time since June (long version) The U.S. average retail price for regular gasoline rose for the first time since late June ...

  9. U.S. gasoline prices increase for first time in a month (short...

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

    gasoline prices increase for first time in a month (short version) The U.S. average retail price for regular gasoline rose for the first time in a month to 2.49 a gallon on Monday. ...

  10. U.S. gasoline increase for the first time in four weeks (short...

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

    U.S. gasoline increase for the first time in four weeks (short version) The U.S. average retail price for regular gasoline rose for the first time in 4 weeks to 3.27 a gallon on ...

  11. U.S. gasoline price decrease for first time in seven weeks ...

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

    7, 2015 U.S. gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to 2.57 a gallon on Monday. That's up 8 cents from a ...

  12. Load Expansion with Diesel/Gasoline RCCI for Improved Engine Efficiency and Emissions

    Broader source: Energy.gov [DOE]

    This poster will describe preliminary emission results of gasoline/diesel RCCI in a medium-duty diesel engine.

  13. Methyl aryl ethers from coal liquids as gasoline extenders and octane improvers

    SciTech Connect (OSTI)

    Singerman, G.M.

    1980-11-01

    A mixture of methyl aryl ethers derived from the phenols present in direct liquefaction coal liquids shows considerable promise as a gasoline blending agent and octane improver. The mixture of methyl aryl ethers was blended at five volume percent with a commercial, unleaded gasoline. The properties and performance of the blend in a variety of laboratory and automotive tests is reported. The tests show that the mixture of methyl aryl ethers improves gasoline octane without degrading other gasoline properties.

  14. Fact #890: September 14, 2015 Gasoline Prices Are Affected by Changes in

    Energy Savers [EERE]

    Refinery Output - Dataset | Department of Energy 0: September 14, 2015 Gasoline Prices Are Affected by Changes in Refinery Output - Dataset Fact #890: September 14, 2015 Gasoline Prices Are Affected by Changes in Refinery Output - Dataset Excel file and dataset for Gasoline Prices Are Affected by Changes in Refinery Output File fotw#890_web.xlsx More Documents & Publications Fact #858 February 2, 2015 Retail Gasoline Prices in 2014 Experienced the Largest Decline since 2008 - Dataset LCC

  15. Long Term Processing Using Integrated Hydropyrolysis plus Hydroconversion (IH2) for the Production of Gasoline and Diesel from Biomass

    SciTech Connect (OSTI)

    Marker, Terry; Roberts, Michael; Linck, Martin; Felix, Larry; Ortiz-Toral, Pedro; Wangerow, Jim; McLeod, Celeste; Del Paggio, Alan; Gephart, John; Starr, Jack; Hahn, John

    2013-06-09

    Cellulosic and woody biomass can be directly converted to hydrocarbon gasoline and diesel blending components through the use of a new, economical, technology named integrated hydropyrolysis plus hydroconversion (IH2). The IH2 gasoline and diesel blending components are fully compatible with petroleum based gasoline and diesel, contain less than 1% oxygen and have less than 1 total acid number (TAN). The IH2 gasoline is high quality and very close to a drop in fuel. The life cycle analysis (LCA) shows that the use of the IH2 process to convert wood to gasoline and diesel results in a greater than 90% reduction in greenhouse gas emission compared to that found with fossil derived fuels. The technoeconomic analysis showed the conversion of wood using the IH2 process can produce gasoline and diesel at less than $2.00/gallon. In this project, the previously reported semi-continuous small scale IH2 test results were confirmed in a continuous 50 kg/day pilot plant. The continuous IH2 pilot plant used in this project was operated round the clock for over 750 hours and showed good pilot plant operability while consistently producing 26-28 wt % yields of high quality gasoline and diesel product. The IH2 catalyst showed good stability, although more work on catalyst stability is recommended. Additional work is needed to commercialize the IH2 technology including running large particle size biomass, modeling the hydropyrolysis step, studying the effects of process variables and building and operating a 1-50 ton/day demonstration scale plant. The IH2 is a true game changing technology by utilizing U.S. domestic renewable biomass resources to create transportation fuels, sufficient in quantity and quality to substantially reduce our reliance on foreign crude oil. Thus, the IH2 technology offers a path to genuine energy independence for the U. S., along with the creation of a significant number of new U.S. jobs to plant, grow, harvest, and process biomass crops into fungible fuels.

  16. The Impact of Ethanol Blending on U.S. Gasoline Prices

    SciTech Connect (OSTI)

    none,

    2008-11-01

    This study assesses the impact of ethanol blending on gasoline prices in the United States today and the potential impact of ethanol on gasoline prices at higher blending concentrations (10%, 15% and 20% of the total U.S. gasoline consumption).

  17. Design Case Summary: Production of Gasoline and Diesel from Biomass via Fast Pyrolysis, Hydrotreating, and Hydrocracking

    Broader source: Energy.gov [DOE]

    The Biomass Program develops design cases to understand the current state of conversiontechnologies and to determine where improvements need to take place in the future. The bestavailable bench and pilot-scale conversion data are integrated with detailed process flow andengineering models to identify technical barriers where research and development could leadto significant cost improvements and to calculate production costs. Past design cases focusedon finding pathways toward cost-competitive production of ethanol. This design case is thefirst to establish detailed cost targets for the production of diesel and gasoline blendstock frombiomass via a fast pyrolysis process.

  18. Gasoline prices continue to decrease nationally (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $3.58 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.

  19. Evaluation of processes for producing gasoline from wood. Final report

    SciTech Connect (OSTI)

    1980-05-01

    Three processes for producing gasoline from wood by pyrolysis have been investigated. Technical and economic comparisons among the processes have been made, based on a hypothetical common plant size of 2000 tons per day green wood chip feedstock. In order to consider the entire fuel production process, the energy and cost inputs for producing and delivering the feedstock were included in the analysis. In addition, perspective has been provided by comparisons of the wood-to-gasoline technologies with other similar systems, including coal-to-methanol and various biomass-to-alcohol systems. Based on several assumptions that were required because of the candidate processes' information gaps, comparisons of energy efficiency were made. Several descriptors of energy efficiency were used, but all showed that methanol production from wood, with or without subsequent processing by the Mobil route to gasoline, appears most promising. It must be emphasized, however, that the critical wood-to-methanol system remains conceptual. Another observation was that the ethanol production systems appear inferior to the wood-to-gasoline processes. Each of the processes investigated requires further research and development to answer the questions about their potential contributions confidently. The processes each have so many unknowns that it appears unwise to pursue any one while abandoning the others.

  20. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

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

    71.8 W 70.5 78.9 W 76.0 83.6 W 69.2 75.2 See footnotes at end of table. 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District and State 176 Energy Information...

  1. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

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

    W 68.4 70.8 W W 78.6 W 85.7 81.8 W 69.3 73.8 See footnotes at end of table. 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District and State 176 Energy Information...

  2. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

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

    61.5 70.8 92.7 90.7 81.5 72.8 - 78.0 See footnotes at end of table. 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 146 Energy Information...

  3. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

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

    62.6 71.7 92.3 89.9 82.6 72.7 - 78.2 See footnotes at end of table. 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 146 Energy Information...

  4. U.S. gasoline price continues to increase (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $2.30 a gallon on Monday. That's up 5.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  5. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $2.03 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

  6. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $2.00 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.

  7. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $1.91 a gallon on Monday. That's down 8.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  8. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $1.86 a gallon on Monday. That's down 5.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  9. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $1.82 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

  10. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $1.76 a gallon on Monday. That's down 6.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  11. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $1.72 a gallon on Monday. That's down 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  12. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $1.73 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

  13. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $1.78 a gallon on Monday. That's up 5.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  14. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $1.84 a gallon on Monday. That's up 5.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  15. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $1.96 a gallon on Monday. That's up 12 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  16. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $2.44 a gallon on Monday. That's down 7.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  17. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $2.38 a gallon on Monday. That's down 6.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  18. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $2.23 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

  19. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $2.22 a gallon on Monday. That's down 4-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  20. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $2.09 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

  1. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $2.06 a gallon on Monday. That's down 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  2. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $2.05 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.

  3. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $2.03 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

  4. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $3.35 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.

  5. U.S. gasoline prices continue to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $3.27 a gallon on Monday. That's down 2.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  6. U.S. gasoline prices continue to increase (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $2.01 a gallon on Monday. That's up 4.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  7. U.S. gasoline prices continue to increase (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $2.07 a gallon on Monday. That's up 5.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  8. U.S. gasoline prices continue to increase (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $2.08 a gallon on Monday. That's up 1.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  9. U.S. gasoline prices continue to increase (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $2.16 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.

  10. U.S. gasoline prices continue to increase (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $2.24 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.

  11. U.S. gasoline prices continue to increase (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $3.63 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.

  12. U.S. gasoline prices continue to increase (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $3.56 a gallon on Monday. That's down 7.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  13. U.S. gasoline prices continue to increase (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $3.55 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.

  14. U.S. gasoline prices continues to decrease (short version)

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

    short version) The U.S. average retail price for regular gasoline fell to $2.33 a gallon on Monday. That's down 4.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  15. Comparing Scales of Environmental Effects from Gasoline and Ethanol Production

    SciTech Connect (OSTI)

    Parish, Esther S; Kline, Keith L; Dale, Virginia H; Efroymson, Rebecca Ann; McBride, Allen; Johnson, Timothy L; Hilliard, Michael R; Bielicki, Dr Jeffrey M

    2013-01-01

    Understanding the environmental effects of alternative fuel production is critical to characterizing the sustainability of energy resources to inform policy and regulatory decisions. The magnitudes of these environmental effects vary according to the intensity and scale of fuel production along each step of the supply chain. We compare the scales (i.e., spatial extent and temporal duration) of ethanol and gasoline production processes and environmental effects based on a literature review, and then synthesize the scale differences on space-time diagrams. Comprehensive assessment of any fuel-production system is a moving target, and our analysis shows that decisions regarding the selection of spatial and temporal boundaries of analysis have tremendous influences on the comparisons. Effects that strongly differentiate gasoline and ethanol supply chains in terms of scale are associated with when and where energy resources are formed and how they are extracted. Although both gasoline and ethanol production may result in negative environmental effects, this study indicates that ethanol production traced through a supply chain may impact less area and result in more easily reversed effects of a shorter duration than gasoline production.

  16. Application of Synergistic Technologies to Achieve High Levels of Gasoline

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

    Engine Downsizing | Department of Energy Discussed technologies applied in highly downsized efficient gasoline engine concept such as multiple injection, advanced boosting, cooled exhaust gas recirculation, and electrical supercharger PDF icon deer11_boggs.pdf More Documents & Publications Meeting the CO2 Challenge DEER 2002 DEER 2007 Presentation Bosch Powertrain Technologies

  17. Utilization of Renewable Oxygenates as Gasoline Blending Components

    SciTech Connect (OSTI)

    Yanowitz, J.; Christensen, E.; McCormick, R. L.

    2011-08-01

    This report reviews the use of higher alcohols and several cellulose-derived oxygenates as blend components in gasoline. Material compatibility issues are expected to be less severe for neat higher alcohols than for fuel-grade ethanol. Very little data exist on how blending higher alcohols or other oxygenates with gasoline affects ASTM Standard D4814 properties. Under the Clean Air Act, fuels used in the United States must be 'substantially similar' to fuels used in certification of cars for emission compliance. Waivers for the addition of higher alcohols at concentrations up to 3.7 wt% oxygen have been granted. Limited emission testing on pre-Tier 1 vehicles and research engines suggests that higher alcohols will reduce emissions of CO and organics, while NOx emissions will stay the same or increase. Most oxygenates can be used as octane improvers for standard gasoline stocks. The properties of 2-methyltetrahydrofuran, dimethylfuran, 2-methylfuran, methyl pentanoate and ethyl pentanoate suggest that they may function well as low-concentration blends with gasoline in standard vehicles and in higher concentrations in flex fuel vehicles.

  18. Emissions Control for Lean Gasoline Engines | Department of Energy

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

    1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace033_toops_2011_o.pdf More Documents & Publications Pre-Competitive Catalysis Research: Fundamental Sulfation/Desulfation Studies of Lean NOx Traps CLEERS Coordination & Development of Catalyst Process Kinetic Data Emissions Control for Lean Gasoline Engines

  19. Biomass to Gasoline and DIesel Using Integrated Hydropyrolysis and Hydroconversion

    SciTech Connect (OSTI)

    Marker, Terry; Roberts, Michael; Linck, Martin; Felix, Larry; Ortiz-Toral, Pedro; Wangerow, Jim; Tan, Eric; Gephart, John; Shonnard, David

    2013-01-02

    Cellulosic and woody biomass can be directly converted to hydrocarbon gasoline and diesel blending components through the use of integrated hydropyrolysis plus hydroconversion (IH2). The IH2 gasoline and diesel blending components are fully compatible with petroleum based gasoline and diesel, contain less than 1% oxygen and have less than 1 total acid number (TAN). The IH2 gasoline is high quality and very close to a drop in fuel. The DOE funding enabled rapid development of the IH2 technology from initial proof-of-principle experiments through continuous testing in a 50 kg/day pilot plant. As part of this project, engineering work on IH2 has also been completed to design a 1 ton/day demonstration unit and a commercial-scale 2000 ton/day IH2 unit. These studies show when using IH2 technology, biomass can be converted directly to transportation quality fuel blending components for the same capital cost required for pyrolysis alone, and a fraction of the cost of pyrolysis plus upgrading of pyrolysis oil. Technoeconomic work for IH2 and lifecycle analysis (LCA) work has also been completed as part of this DOE study and shows IH2 technology can convert biomass to gasoline and diesel blending components for less than $2.00/gallon with greater than 90% reduction in greenhouse gas emissions. As a result of the work completed in this DOE project, a joint development agreement was reached with CRI Catalyst Company to license the IH2 technology. Further larger-scale, continuous testing of IH2 will be required to fully demonstrate the technology, and funding for this is recommended. The IH2 biomass conversion technology would reduce U.S. dependence on foreign oil, reduce the price of transportation fuels, and significantly lower greenhouse gas (GHG) emissions. It is a breakthrough for the widespread conversion of biomass to transportation fuels.

  20. Gasoline price forecast to stay below 3 dollar a gallon in 2015

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

    Gasoline price forecast to stay below $3 a gallon in 2015 The national average pump price of gasoline is expected to stay below $3 per gallon during 2015. In its new monthly forecast, the U.S. Energy Information Administration said the retail price for regular gasoline should average $2.33 per gallon this year. The price of gasoline increased in early February after falling for 17 weeks in a row. But gasoline prices will continue to remain low in 2015 when compared with pump prices in recent

  1. Effects of gasoline reactivity and ethanol content on boosted premixed and partially stratified low-temperature gasoline combustion (LTGC)

    SciTech Connect (OSTI)

    Dec, John E.; Yang, Yi; Ji, Chunsheng; Dernotte, Jeremie

    2015-04-14

    Low-temperature gasoline combustion (LTGC), based on the compression ignition of a premixed or partially premixed dilute charge, can provide thermal efficiencies (TE) and maximum loads comparable to those of turbo-charged diesel engines, and ultra-low NOx and particulate emissions. Intake boosting is key to achieving high loads with dilute combustion, and it also enhances the fuel's autoignition reactivity, reducing the required intake heating or hot residuals. These effects have the advantages of increasing TE and charge density, allowing greater timing retard with good stability, and making the fuel ?- sensitive so that partial fuel stratification (PFS) can be applied for higher loads and further TE improvements. However, at high boost the autoignition reactivity enhancement can become excessive, and substantial amounts of EGR are required to prevent overly advanced combustion. Accordingly, an experimental investigation has been conducted to determine how the tradeoff between the effects of intake boost varies with fuel-type and its impact on load range and TE. Five fuels are investigated: a conventional AKI=87 petroleum-based gasoline (E0), and blends of 10 and 20% ethanol with this gasoline to reduce its reactivity enhancement with boost (E10 and E20). Furthermore, a second zero-ethanol gasoline with AKI=93 (matching that of E20) was also investigated (CF-E0), and some neat ethanol data are also reported.

  2. Effects of gasoline reactivity and ethanol content on boosted premixed and partially stratified low-temperature gasoline combustion (LTGC)

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

    Dec, John E.; Yang, Yi; Ji, Chunsheng; Dernotte, Jeremie

    2015-04-14

    Low-temperature gasoline combustion (LTGC), based on the compression ignition of a premixed or partially premixed dilute charge, can provide thermal efficiencies (TE) and maximum loads comparable to those of turbo-charged diesel engines, and ultra-low NOx and particulate emissions. Intake boosting is key to achieving high loads with dilute combustion, and it also enhances the fuel's autoignition reactivity, reducing the required intake heating or hot residuals. These effects have the advantages of increasing TE and charge density, allowing greater timing retard with good stability, and making the fuel Φ- sensitive so that partial fuel stratification (PFS) can be applied for highermore » loads and further TE improvements. However, at high boost the autoignition reactivity enhancement can become excessive, and substantial amounts of EGR are required to prevent overly advanced combustion. Accordingly, an experimental investigation has been conducted to determine how the tradeoff between the effects of intake boost varies with fuel-type and its impact on load range and TE. Five fuels are investigated: a conventional AKI=87 petroleum-based gasoline (E0), and blends of 10 and 20% ethanol with this gasoline to reduce its reactivity enhancement with boost (E10 and E20). Furthermore, a second zero-ethanol gasoline with AKI=93 (matching that of E20) was also investigated (CF-E0), and some neat ethanol data are also reported.« less

  3. Effects of gasoline reactivity and ethanol content on boosted premixed and partially stratified low-temperature gasoline combustion (LTGC)

    SciTech Connect (OSTI)

    Dec, John E.; Yang, Yi; Ji, Chunsheng; Dernotte, Jeremie

    2015-04-14

    Low-temperature gasoline combustion (LTGC), based on the compression ignition of a premixed or partially premixed dilute charge, can provide thermal efficiencies (TE) and maximum loads comparable to those of turbo-charged diesel engines, and ultra-low NOx and particulate emissions. Intake boosting is key to achieving high loads with dilute combustion, and it also enhances the fuel's autoignition reactivity, reducing the required intake heating or hot residuals. These effects have the advantages of increasing TE and charge density, allowing greater timing retard with good stability, and making the fuel Φ- sensitive so that partial fuel stratification (PFS) can be applied for higher loads and further TE improvements. However, at high boost the autoignition reactivity enhancement can become excessive, and substantial amounts of EGR are required to prevent overly advanced combustion. Accordingly, an experimental investigation has been conducted to determine how the tradeoff between the effects of intake boost varies with fuel-type and its impact on load range and TE. Five fuels are investigated: a conventional AKI=87 petroleum-based gasoline (E0), and blends of 10 and 20% ethanol with this gasoline to reduce its reactivity enhancement with boost (E10 and E20). Furthermore, a second zero-ethanol gasoline with AKI=93 (matching that of E20) was also investigated (CF-E0), and some neat ethanol data are also reported.

  4. Techno-economic Analysis for the Conversion of Lignocellulosic Biomass to Gasoline via the Methanol-to-Gasoline (MTG) Process

    SciTech Connect (OSTI)

    Jones, Susanne B.; Zhu, Yunhua

    2009-05-01

    Biomass is a renewable energy resource that can be converted into liquid fuel suitable for transportation applications. As a widely available biomass form, lignocellulosic biomass can have a major impact on domestic transportation fuel supplies and thus help meet the Energy Independence and Security Act renewable energy goals (U.S. Congress 2007). With gasification technology, biomass can be converted to gasoline via methanol synthesis and methanol-to-gasoline (MTG) technologies. Producing a gasoline product that is infrastructure ready has much potential. Although the MTG technology has been commercially demonstrated with natural gas conversion, combining MTG with biomass gasification has not been shown. Therefore, a techno-economic evaluation for a biomass MTG process based on currently available technology was developed to provide information about benefits and risks of this technology. The economic assumptions used in this report are consistent with previous U.S. Department of Energy Office of Biomass Programs techno-economic assessments. The feedstock is assumed to be wood chips at 2000 metric ton/day (dry basis). Two kinds of gasification technologies were evaluated: an indirectly-heated gasifier and a directly-heated oxygen-blown gasifier. The gasoline selling prices (2008 USD) excluding taxes were estimated to be $3.20/gallon and $3.68/gallon for indirectly-heated gasified and directly-heated. This suggests that a process based on existing technology is economic only when crude prices are above $100/bbl. However, improvements in syngas cleanup combined with consolidated gasoline synthesis can potentially reduce the capital cost. In addition, improved synthesis catalysts and reactor design may allow increased yield.

  5. Fact #858 February 2, 2015 Retail Gasoline Prices in 2014 Experienced the Largest Decline since 2008 – Dataset

    Broader source: Energy.gov [DOE]

    Excel file with dataset for Retail Gasoline Prices in 2014 Experienced the Largest Decline since 2008

  6. The Impact of Carbon Control on Low-Income Household Electricity and Gasoline Expenditures

    SciTech Connect (OSTI)

    Eisenberg, Joel Fred

    2008-06-01

    In July of 2007 The Department of Energy's (DOE's) Energy Information Administration (EIA) released its impact analysis of 'The Climate Stewardship And Innovation Act of 2007,' known as S.280. This legislation, cosponsored by Senators Joseph Lieberman and John McCain, was designed to significantly cut U.S. greenhouse gas emissions over time through a 'cap-and-trade' system, briefly described below, that would gradually but extensively reduce such emissions over many decades. S.280 is one of several proposals that have emerged in recent years to come to grips with the nation's role in causing human-induced global climate change. EIA produced an analysis of this proposal using the National Energy Modeling System (NEMS) to generate price projections for electricity and gasoline under the proposed cap-and-trade system. Oak Ridge National Laboratory integrated those price projections into a data base derived from the EIA Residential Energy Consumption Survey (RECS) for 2001 and the EIA public use files from the National Household Transportation Survey (NHTS) for 2001 to develop a preliminary assessment of impact of these types of policies on low-income consumers. ORNL will analyze the impacts of other specific proposals as EIA makes its projections for them available. The EIA price projections for electricity and gasoline under the S.280 climate change proposal, integrated with RECS and NHTS for 2001, help identify the potential effects on household electric bills and gasoline expenditures, which represent S.280's two largest direct impacts on low-income household budgets in the proposed legislation. The analysis may prove useful in understanding the needs and remedies for the distributive impacts of such policies and how these may vary based on patterns of location, housing and vehicle stock, and energy usage.

  7. Raman Scattering Sensor for Control of the Acid Alkylation Process in Gasoline Production

    SciTech Connect (OSTI)

    Uibel, Rory, H.; Smith, Lee M.; Benner, Robert, E.

    2006-04-19

    Gasoline refineries utilize a process called acid alkylation to increase the octane rating of blended gasoline, and this is the single most expensive process in the refinery. For process efficiency and safety reasons, the sulfuric acid can only be used while it is in the concentration range of 98 to 86 %. The conventional technique to monitor the acid concentration is time consuming and is typically conducted only a few times per day. This results in running higher acid concentrations than they would like to ensure that the process proceeds uninterrupted. Maintaining an excessively high acid concentration costs the refineries millions of dollars each year. Using SBIR funding, Process Instruments Inc. has developed an inline sensor for real time monitoring of acid concentrations in gasoline refinery alkylation units. Real time data was then collected over time from the instrument and its responses were matched up with the laboratory analysis. A model was then developed to correlate the laboratory acid values to the Raman signal that is transmitted back to the instrument from the process stream. The instrument was then used to demonstrate that it could create real-time predictions of the acid concentrations. The results from this test showed that the instrument could accurately predict the acid concentrations to within ~0.15% acid strength, and this level of prediction proved to be similar or better then the laboratory analysis. By utilizing a sensor for process monitoring the most economic acid concentrations can be maintained. A single smaller refinery (50,000 barrels/day) estimates that they should save over $120,000/year, with larger refineries saving considerably more.

  8. Modeling and Algorithmic Approaches to Constitutively-Complex, Micro-structured Fluids

    SciTech Connect (OSTI)

    Forest, Mark Gregory [University of North Carolina at Chapel Hill] [University of North Carolina at Chapel Hill

    2014-05-06

    The team for this Project made significant progress on modeling and algorithmic approaches to hydrodynamics of fluids with complex microstructure. Our advances are broken down into modeling and algorithmic approaches. In experiments a driven magnetic bead in a complex fluid accelerates out of the Stokes regime and settles into another apparent linear response regime. The modeling explains the take-off as a deformation of entanglements, and the longtime behavior is a nonlinear, far-from-equilibrium property. Furthermore, the model has predictive value, as we can tune microstructural properties relative to the magnetic force applied to the bead to exhibit all possible behaviors. Wave-theoretic probes of complex fluids have been extended in two significant directions, to small volumes and the nonlinear regime. Heterogeneous stress and strain features that lie beyond experimental capability were studied. It was shown that nonlinear penetration of boundary stress in confined viscoelastic fluids is not monotone, indicating the possibility of interlacing layers of linear and nonlinear behavior, and thus layers of variable viscosity. Models, algorithms, and codes were developed and simulations performed leading to phase diagrams of nanorod dispersion hydrodynamics in parallel shear cells and confined cavities representative of film and membrane processing conditions. Hydrodynamic codes for polymeric fluids are extended to include coupling between microscopic and macroscopic models, and to the strongly nonlinear regime.

  9. Speciation model selection by Monte Carlo analysis of optical absorption spectra: Plutonium(IV) nitrate complexes

    SciTech Connect (OSTI)

    Berg, John M.; Veirs, D. Kirk; Vaughn, Randolph B.; Cisneros, Michael R.; Smith, Coleman A.

    2000-06-01

    Standard modeling approaches can produce the most likely values of the formation constants of metal-ligand complexes if a particular set of species containing the metal ion is known or assumed to exist in solution equilibrium with complexing ligands. Identifying the most likely set of species when more than one set is plausible is a more difficult problem to address quantitatively. A Monte Carlo method of data analysis is described that measures the relative abilities of different speciation models to fit optical spectra of open-shell actinide ions. The best model(s) can be identified from among a larger group of models initially judged to be plausible. The method is demonstrated by analyzing the absorption spectra of aqueous Pu(IV) titrated with nitrate ion at constant 2 molal ionic strength in aqueous perchloric acid. The best speciation model supported by the data is shown to include three Pu(IV) species with nitrate coordination numbers 0, 1, and 2. Formation constants are {beta}{sub 1}=3.2{+-}0.5 and {beta}{sub 2}=11.2{+-}1.2, where the uncertainties are 95% confidence limits estimated by propagating raw data uncertainties using Monte Carlo methods. Principal component analysis independently indicates three Pu(IV) complexes in equilibrium. (c) 2000 Society for Applied Spectroscopy.

  10. Large-Scale Transport Model Uncertainty and Sensitivity Analysis: Distributed Sources in Complex Hydrogeologic Systems

    SciTech Connect (OSTI)

    Sig Drellack, Lance Prothro

    2007-12-01

    The Underground Test Area (UGTA) Project of the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office is in the process of assessing and developing regulatory decision options based on modeling predictions of contaminant transport from underground testing of nuclear weapons at the Nevada Test Site (NTS). The UGTA Project is attempting to develop an effective modeling strategy that addresses and quantifies multiple components of uncertainty including natural variability, parameter uncertainty, conceptual/model uncertainty, and decision uncertainty in translating model results into regulatory requirements. The modeling task presents multiple unique challenges to the hydrological sciences as a result of the complex fractured and faulted hydrostratigraphy, the distributed locations of sources, the suite of reactive and non-reactive radionuclides, and uncertainty in conceptual models. Characterization of the hydrogeologic system is difficult and expensive because of deep groundwater in the arid desert setting and the large spatial setting of the NTS. Therefore, conceptual model uncertainty is partially addressed through the development of multiple alternative conceptual models of the hydrostratigraphic framework and multiple alternative models of recharge and discharge. Uncertainty in boundary conditions is assessed through development of alternative groundwater fluxes through multiple simulations using the regional groundwater flow model. Calibration of alternative models to heads and measured or inferred fluxes has not proven to provide clear measures of model quality. Therefore, model screening by comparison to independently-derived natural geochemical mixing targets through cluster analysis has also been invoked to evaluate differences between alternative conceptual models. Advancing multiple alternative flow models, sensitivity of transport predictions to parameter uncertainty is assessed through Monte Carlo simulations. The simulations are challenged by the distributed sources in each of the Corrective Action Units, by complex mass transfer processes, and by the size and complexity of the field-scale flow models. An efficient methodology utilizing particle tracking results and convolution integrals provides in situ concentrations appropriate for Monte Carlo analysis. Uncertainty in source releases and transport parameters including effective porosity, fracture apertures and spacing, matrix diffusion coefficients, sorption coefficients, and colloid load and mobility are considered. With the distributions of input uncertainties and output plume volumes, global analysis methods including stepwise regression, contingency table analysis, and classification tree analysis are used to develop sensitivity rankings of parameter uncertainties for each model considered, thus assisting a variety of decisions.

  11. Assessment of California reformulated gasoline impact on vehicle fuel economy

    SciTech Connect (OSTI)

    Aceves, S., LLNL

    1997-01-01

    Fuel economy data contained in the 1996 California Air Resources Board (CARB) report with respect to the introduction of California Reformulated Gasoline (CaRFG) has been examined and reanalyzed by two additional statistical methodologies. Additional data has also been analyzed by these two statistical approaches. Within the assumptions of the analysis, point estimates for the reduction in fuel economy using CaRFG as compared to conventional, non-reformulated gasoline were 2-4%, with a 95% upper confidence bound of 6%. Substantial variations in fuel economy are routine and inevitable due to additional factors which affect mileage, even if there is no change in fuel reformulation. This additional analysis confirms the conclusion reached by CARB with respect to the impact of CaRFG on fuel economy.

  12. Low-Temperature Gasoline Combustion (LTGC) Engine Research

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

    Low-Temperature Gasoline Combustion (LTGC) Engine Research - Previously known as HCCI / SCCI - John E. Dec Jeremie Dernotte and Chunsheng Ji Sandia National Laboratories June 17, 2014 - 12:00 p.m. U.S. DOE, Office of Vehicle Technologies Annual Merit Review and Peer Evaluation Program Managers: Gurpreet Singh & Leo Breton Project ID: ACE004 This presentation does not contain any proprietary, confidential, or otherwise restricted information. Timeline ● Project provides fundamental research

  13. High Efficiency Clean Combustion Engine Designs for Gasoline and Diesel

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

    Engines | Department of Energy 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon ace_35_patton.pdf More Documents & Publications High Efficiency Clean Combustion Engine Designs for Gasoline and Diesel Engines Development of High-Efficiency Clean Combustion Engines Designs for SI and CI Engines Expanding Robust HCCI Operation (Delphi CRADA)

  14. Characterization of Pre-Commercial Gasoline Engine Particulates Through

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

    Advanced Aerosol Methods | Department of Energy Advanced aerosol analysis methods were used to examine particulates from single cylinder test engines running on gasoline and ethanol blends. PDF icon deer12_zelenyuk.pdf More Documents & Publications Fuel-Neutral Studies of Particulate Matter Transport Emissions Fuel-Neutral Studies of Particulate Matter Transport Emissions Vehicle Technologies Office Merit Review 2015: Fuel-Neutral Studies of Particulate Matter Transport Emissions

  15. Simulation of complex glazing products; from optical data measurements to model based predictive controls

    SciTech Connect (OSTI)

    Kohler, Christian

    2012-08-01

    Complex glazing systems such as venetian blinds, fritted glass and woven shades require more detailed optical and thermal input data for their components than specular non light-redirecting glazing systems. Various methods for measuring these data sets are described in this paper. These data sets are used in multiple simulation tools to model the thermal and optical properties of complex glazing systems. The output from these tools can be used to generate simplified rating values or as an input to other simulation tools such as whole building annual energy programs, or lighting analysis tools. I also describe some of the challenges of creating a rating system for these products and which factors affect this rating. A potential future direction of simulation and building operations is model based predictive controls, where detailed computer models are run in real-time, receiving data for an actual building and providing control input to building elements such as shades.

  16. Generative model selection using a scalable and size-independent complex network classifier

    SciTech Connect (OSTI)

    Motallebi, Sadegh, E-mail: motallebi@ce.sharif.edu; Aliakbary, Sadegh, E-mail: aliakbary@ce.sharif.edu; Habibi, Jafar, E-mail: jhabibi@sharif.edu [Department of Computer Engineering, Sharif University of Technology, Tehran (Iran, Islamic Republic of)] [Department of Computer Engineering, Sharif University of Technology, Tehran (Iran, Islamic Republic of)

    2013-12-15

    Real networks exhibit nontrivial topological features, such as heavy-tailed degree distribution, high clustering, and small-worldness. Researchers have developed several generative models for synthesizing artificial networks that are structurally similar to real networks. An important research problem is to identify the generative model that best fits to a target network. In this paper, we investigate this problem and our goal is to select the model that is able to generate graphs similar to a given network instance. By the means of generating synthetic networks with seven outstanding generative models, we have utilized machine learning methods to develop a decision tree for model selection. Our proposed method, which is named Generative Model Selection for Complex Networks, outperforms existing methods with respect to accuracy, scalability, and size-independence.

  17. Process for conversion of lignin to reformulated, partially oxygenated gasoline

    DOE Patents [OSTI]

    Shabtai, Joseph S. (Salt Lake City, UT); Zmierczak, Wlodzimierz W. (Salt Lake City, UT); Chornet, Esteban (Golden, CO)

    2001-01-09

    A high-yield process for converting lignin into reformulated, partially oxygenated gasoline compositions of high quality is provided. The process is a two-stage catalytic reaction process that produces a reformulated, partially oxygenated gasoline product with a controlled amount of aromatics. In the first stage of the process, a lignin feed material is subjected to a base-catalyzed depolymerization reaction, followed by a selective hydrocracking reaction which utilizes a superacid catalyst to produce a high oxygen-content depolymerized lignin product mainly composed of alkylated phenols, alkylated alkoxyphenols, and alkylbenzenes. In the second stage of the process, the depolymerized lignin product is subjected to an exhaustive etherification reaction, optionally followed by a partial ring hydrogenation reaction, to produce a reformulated, partially oxygenated/etherified gasoline product, which includes a mixture of substituted phenyl/methyl ethers, cycloalkyl methyl ethers, C.sub.7 -C.sub.10 alkylbenzenes, C.sub.6 -C.sub.10 branched and multibranched paraffins, and alkylated and polyalkylated cycloalkanes.

  18. Short-Term Energy Outlook Model Documentation: Petroleum Products Supply Module

    Reports and Publications (EIA)

    2013-01-01

    The Petroleum Products Supply Module of the Short-Term Energy Outlook (STEO) model provides forecasts of petroleum refinery inputs (crude oil, unfinished oils, pentanes plus, liquefied petroleum gas, motor gasoline blending components, and aviation gasoline blending components) and refinery outputs (motor gasoline, jet fuel, distillate fuel, residual fuel, liquefied petroleum gas, and other petroleum products).

  19. A mouse model of mitochondrial complex III dysfunction induced by myxothiazol

    SciTech Connect (OSTI)

    Davoudi, Mina; Kallijrvi, Jukka; Marjavaara, Sanna; Kotarsky, Heike; Hansson, Eva; Leven, Per; Fellman, Vineta

    2014-04-18

    Highlights: Reversible chemical inhibition of complex III in wild type mouse. Myxothiazol causes decreased complex III activity in mouse liver. The model is useful for therapeutic trials to improve mitochondrial function. - Abstract: Myxothiazol is a respiratory chain complex III (CIII) inhibitor that binds to the ubiquinol oxidation site Qo of CIII. It blocks electron transfer from ubiquinol to cytochrome b and thus inhibits CIII activity. It has been utilized as a tool in studies of respiratory chain function in in vitro and cell culture models. We developed a mouse model of biochemically induced and reversible CIII inhibition using myxothiazol. We administered myxothiazol intraperitoneally at a dose of 0.56 mg/kg to C57Bl/J6 mice every 24 h and assessed CIII activity, histology, lipid content, supercomplex formation, and gene expression in the livers of the mice. A reversible CIII activity decrease to 50% of control value occurred at 2 h post-injection. At 74 h only minor histological changes in the liver were found, supercomplex formation was preserved and no significant changes in the expression of genes indicating hepatotoxicity or inflammation were found. Thus, myxothiazol-induced CIII inhibition can be induced in mice for four days in a row without overt hepatotoxicity or lethality. This model could be utilized in further studies of respiratory chain function and pharmacological approaches to mitochondrial hepatopathies.

  20. Investigation of Knock limited Compression Ratio of Ethanol Gasoline Blends

    SciTech Connect (OSTI)

    Szybist, James P; Youngquist, Adam D; Wagner, Robert M; Moore, Wayne; Foster, Matthew; Confer, Keith

    2010-01-01

    Ethanol offers significant potential for increasing the compression ratio of SI engines resulting from its high octane number and high latent heat of vaporization. A study was conducted to determine the knock limited compression ratio of ethanol gasoline blends to identify the potential for improved operating efficiency. To operate an SI engine in a flex fuel vehicle requires operating strategies that allow operation on a broad range of fuels from gasoline to E85. Since gasoline or low ethanol blend operation is inherently limited by knock at high loads, strategies must be identified which allow operation on these fuels with minimal fuel economy or power density tradeoffs. A single cylinder direct injection spark ignited engine with fully variable hydraulic valve actuation (HVA) is operated at WOT conditions to determine the knock limited compression ratio (CR) of ethanol fuel blends. The geometric compression ratio is varied by changing pistons, producing CR from 9.2 to 13.66. The effective CR is varied using an electro-hydraulic valvetrain that changed the effective trapped displacement using both Early Intake Valve Closing (EIVC) and Late Intake Valve Closing (LIVC). The EIVC and LIVC strategies result in effective CR being reduced while maintaining the geometric expansion ratio. It was found that at substantially similar engine conditions, increasing the ethanol content of the fuel results in higher engine efficiency and higher engine power. These can be partially attributed to a charge cooling effect and a higher heating valve of a stoichiometric mixture for ethanol blends (per unit mass of air). Additional thermodynamic effects on and a mole multiplier are also explored. It was also found that high CR can increase the efficiency of ethanol fuel blends, and as a result, the fuel economy penalty associated with the lower energy content of E85 can be reduced by about a third. Such operation necessitates that the engine be operated in a de-rated manner for gasoline, which is knock-prone at these high CR, in order to maintain compatibility. By using EIVC and LIVC strategies, good efficiency is maintained with gasoline, but power is reduced by about 34%.

  1. Technical Note: Modeling a complex micro-multileaf collimator using the standard BEAMnrc distribution

    SciTech Connect (OSTI)

    Kairn, T.; Kenny, J.; Crowe, S. B.; Fielding, A. L.; Franich, R. D.; Johnston, P. N.; Knight, R. T.; Langton, C. M.; Schlect, D.; Trapp, J. V.

    2010-04-15

    Purpose: The component modules in the standard BEAMnrc distribution may appear to be insufficient to model micro-multileaf collimators that have trifaceted leaf ends and complex leaf profiles. This note indicates, however, that accurate Monte Carlo simulations of radiotherapy beams defined by a complex collimation device can be completed using BEAMnrc's standard VARMLC component module. Methods: That this simple collimator model can produce spatially and dosimetrically accurate microcollimated fields is illustrated using comparisons with ion chamber and film measurements of the dose deposited by square and irregular fields incident on planar, homogeneous water phantoms. Results: Monte Carlo dose calculations for on-axis and off-axis fields are shown to produce good agreement with experimental values, even on close examination of the penumbrae. Conclusions: The use of a VARMLC model of the micro-multileaf collimator, along with a commissioned model of the associated linear accelerator, is therefore recommended as an alternative to the development or use of in-house or third-party component modules for simulating stereotactic radiotherapy and radiosurgery treatments. Simulation parameters for the VARMLC model are provided which should allow other researchers to adapt and use this model to study clinical stereotactic radiotherapy treatments.

  2. Maximizing Potential of Diesel and Gasoline for a Cleaner, More Efficient

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

    Engine | Department of Energy Maximizing Potential of Diesel and Gasoline for a Cleaner, More Efficient Engine Maximizing Potential of Diesel and Gasoline for a Cleaner, More Efficient Engine September 27, 2011 - 3:52pm Addthis A team of researchers and engineers at Argonne National Laboratory, led by Steve Ciatti, pictured above, is looking at the possibility of using gasoline to power diesel engines, thereby increasing overall efficiency and reducing pollution. | Image courtesy of ANL A

  3. Impact of California Phase 2 reformulated gasoline on atmospheric reactivity of exhaust and evaporative emissions

    SciTech Connect (OSTI)

    Kirchstetter, T.W.; Singer, B.C.; Harley, R.A.; Kendall, G.R.; Traverse, M.

    1997-12-31

    Phase 2 of California`s reformulated gasoline (RFG) program took effect statewide in the first half of 1996. Changes to gasoline composition required by Phase 2 specifications included: lower vapor pressure; lower olefin, aromatic, benzene, and sulfur content; lower T50 and T90; and a minimum oxygen content. In this paper, impacts of Phase 2 RFG on the atmospheric reactivity of motor vehicle exhaust and evaporative emissions are described. Volatile organic compounds in motor vehicle exhaust were measured at the Caldecott tunnel in summer 1995 and 1996. Aggregate emissions of greater than 8000 vehicles were measured each day. Regular and premium grade gasoline samples were collected from service stations in Berkeley concurrently with tunnel measurements both summers. Liquid gasoline samples and their headspace vapors were analyzed to determine detailed chemical composition. Normalized reactivity was calculated for exhaust and evaporative emissions by applying maximum incremental reactivity values to the detailed speciation profiles. Results indicate that the composition of gasoline in 1996 differed markedly from that of 1995. Changes in liquid gasoline composition led to corresponding changes in the speciation of vehicle exhaust and of gasoline headspace vapors. Benzene concentration in liquid gasoline decreased from 2.0 to 0.6 wt%, which contributed to a 70 and 37% reduction in benzene weight fraction in headspace vapors and vehicle exhaust, respectively. Addition of MTBE and reduction of olefins and aromatics in gasoline led to significant reductions in the atmospheric reactivity of unburned gasoline and gasoline headspace vapors. The normalized reactivity of liquid gasoline and headspace vapors decreased by 23 and 19%, respectively, between 1995 and 1996. The normalized reactivity of non-methane organic compounds in vehicle exhaust decreased by about 8%, but the uncertainty in this change was large.

  4. U.S. summer gasoline price to average 6 cents lower than last...

    Gasoline and Diesel Fuel Update (EIA)

    price. Gasoline demand this summer is expected to be slightly below last year's level, as more fuel efficient vehicles more than offset the projected increase in highway travel

  5. FedEx Gasoline Hybrid Electric Delivery Truck Evaluation: 6-Month...

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

    ... This work comprises chassis dynamometer testing of two medium-duty FedEx delivery vehicles, a gasoline hybrid electric vehicle (GHEV) and a conventional diesel (baseline) vehicle. ...

  6. Conversion of Low-Rank Wyoming Coals into Gasoline by Direct...

    Office of Scientific and Technical Information (OSTI)

    of Low-Rank Wyoming Coals into Gasoline by Direct Liquefaction Polyakov, Oleg 01 COAL, LIGNITE, AND PEAT Under the cooperative agreement program of DOE and funding from...

  7. Fact #915: March 7, 2016 Average Historical Annual Gasoline Pump Price,

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

    1929-2015 | Department of Energy 915: March 7, 2016 Average Historical Annual Gasoline Pump Price, 1929-2015 Fact #915: March 7, 2016 Average Historical Annual Gasoline Pump Price, 1929-2015 SUBSCRIBE to the Fact of the Week When adjusted for inflation, the average annual price of gasoline has fluctuated greatly, and has recently experienced sharp increases and decreases. The effect of the U.S. embargo of oil from Iran can be seen in the early 1980's with the price of gasoline peaking in

  8. Average U.S. household to spend $710 less on gasoline during 2015

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

    Average U.S. household to spend $710 less on gasoline during 2015 Even with the recent increases in gasoline prices, the average U.S. household is still expected save $710 in gasoline costs this year compared with what was paid at the pump in 2014. In its new monthly forecast, the U.S. Energy Information Administration said the national average price for regular gasoline is expected to be $2.39 per gallon this year. That's almost $1 less than the $3.36 average in 2014. Lower crude oil prices

  9. East Coast blizzard cuts into gasoline demand, but home electricity demand rises

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

    East Coast blizzard cuts into gasoline demand, but home electricity demand rises U.S. monthly gasoline consumption declined in January, as the big winter storm that shut down many East Coast cities kept people in their homes and off the road. In its new monthly forecast, the U.S. Energy Information Administration said monthly gasoline consumption dropped 230,000 barrels per day in January compared to year-ago levels and that marked the first year-over-year decline in monthly gasoline use since

  10. Gasoline price to average below $2 in 2016 for first time in 12 years

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

    Gasoline price to average below $2 in 2016 for first time in 12 years The annual average price for U.S. regular-grade gasoline is expected to fall below $2 per gallon this year for the first time since 2004. In its new monthly forecast, the U.S. Energy Information Administration said drivers will pay on average $1.98 per gallon to fill up at the pump with regular-grade gasoline. EIA expects the monthly average price of gasoline to reach a seven-year low of $1.82 per gallon in February, before

  11. Table A1. Refiner/Reseller Motor Gasoline Prices by Grade, PAD...

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

    Information Administration Petroleum Marketing Annual 1995 Table A1. RefinerReseller Motor Gasoline Prices by Grade, PAD District and State, 1984-Present (Cents per Gallon...

  12. Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District...

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

    table. 56 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  13. Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District...

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

    table. 56 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  14. Table 6. U.S. Refiner Motor Gasoline Prices by Grade and Sales...

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

    Information Administration Petroleum Marketing Annual 1995 Table 6. U.S. Refiner Motor Gasoline Prices by Grade and Sales Type (Cents per Gallon Excluding Taxes) - Continued...

  15. Table A1. Refiner/Reseller Motor Gasoline Prices by Grade, PAD...

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

    AdministrationPetroleum Marketing Annual 1999 401 Table A1. RefinerReseller Motor Gasoline Prices by Grade, PAD District and State, 1984-Present (Cents per Gallon...

  16. Table 7. U.S. Refiner Motor Gasoline Volumes by Grade and Sales...

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

    Information Administration Petroleum Marketing Annual 1995 Table 7. U.S. Refiner Motor Gasoline Volumes by Grade and Sales Type (Million Gallons per Day) - Continued Year...

  17. Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District...

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

    table. 56 Energy Information Administration Petroleum Marketing Annual 1995 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  18. Fact #915: March 7, 2016 Average Historical Annual Gasoline Pump Price,

    Energy Savers [EERE]

    1929-2015 - Dataset | Department of Energy 5: March 7, 2016 Average Historical Annual Gasoline Pump Price, 1929-2015 - Dataset Fact #915: March 7, 2016 Average Historical Annual Gasoline Pump Price, 1929-2015 - Dataset Excel file and dataset for Average Historical Annual Gasoline Pump Price, 1929-2015 File fotw#915_web.xlsx More Documents & Publications Fact #835: August 25, 2014 Average Annual Gasoline Pump Price, 1929-2013 - Dataset Fact #888: August 31, 2015 Historical Gas Prices -

  19. Method for determining the octane rating of gasoline samples by observing corresponding acoustic resonances therein

    DOE Patents [OSTI]

    Sinha, Dipen N.; Anthony, Brian W.

    1997-01-01

    A method for determining the octane rating of gasoline samples by observing corresponding acoustic resonances therein. A direct correlation between the octane rating of gasoline and the frequency of corresponding acoustic resonances therein has been experimentally observed. Therefore, the octane rating of a gasoline sample can be directly determined through speed of sound measurements instead of by the cumbersome process of quantifying the knocking quality of the gasoline. Various receptacle geometries and construction materials may be employed. Moreover, it is anticipated that the measurements can be performed on flowing samples in pipes, thereby rendering the present method useful in refineries and distilleries.

  20. Method for determining the octane rating of gasoline samples by observing corresponding acoustic resonances therein

    DOE Patents [OSTI]

    Sinha, D.N.; Anthony, B.W.

    1997-02-25

    A method is described for determining the octane rating of gasoline samples by observing corresponding acoustic resonances therein. A direct correlation between the octane rating of gasoline and the frequency of corresponding acoustic resonances therein has been experimentally observed. Therefore, the octane rating of a gasoline sample can be directly determined through speed of sound measurements instead of by the cumbersome process of quantifying the knocking quality of the gasoline. Various receptacle geometries and construction materials may be employed. Moreover, it is anticipated that the measurements can be performed on flowing samples in pipes, thereby rendering the present method useful in refineries and distilleries. 3 figs.

  1. ,"U.S. Sales to End Users, Total Refiner Motor Gasoline Sales...

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

    Refiner Gasoline Volumes",1,"Monthly","22016","1151983" ,"Data 2","by Grade",3,"Monthly","22016","1151983" ,"Data 3","by Formulation",3,"Monthly","22016","1151994" ...

  2. ,"U.S. Sales for Resale, Total Refiner Motor Gasoline Sales Volumes...

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

    Refiner Gasoline Volumes",1,"Monthly","22016","1151983" ,"Data 2","by Grade",3,"Monthly","22016","1151983" ,"Data 3","by Formulation",3,"Monthly","22016","1151994" ...

  3. SwRI's HEDGE Technology for High Efficiency, Low Emissions Gasoline...

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

    Efficiency Engine Technologies and an Introduction to SwRI's Dedicated EGR Concept Development of Dual-Fuel Engine for Class 8 Applications Gasoline Ultra Fuel Efficient Vehicle...

  4. 3-Cylinder Turbocharged Gasoline Direct Injection: A High Value Solution for Euro VI Emissions

    Broader source: Energy.gov [DOE]

    3-cylindery gasoline direct injection engines offer similar value in CO2 reduction capability (Euros/% CO2 reduction) at a significantly lower on-cost.

  5. Vehicle Technologies Office Merit Review 2014: Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine Development

    Broader source: Energy.gov [DOE]

    Presentation given by Ford Motor Companyh at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced gasoline...

  6. Vehicle Technologies Office Merit Review 2015: Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine Development

    Broader source: Energy.gov [DOE]

    Presentation given by Cummins at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced gasoline turbocharged direct...

  7. What Drives U.S. Gasoline Prices? - Energy Information Administration

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

    What Drives U.S. Gasoline Prices? Release date: October 30, 2014 Preface U.S. oil production has grown rapidly in recent years. U.S. Energy Information Administration (EIA) data, which reflect combined production of crude oil and lease condensate, show a rise from 5.6 million barrels per day (bbl/d) in 2011 to 7.4 million bbl/d in 2013. EIA's Short-Term Energy Outlook (STEO) projects continuing rapid production growth in 2014 and 2015, with forecast production in 2015 averaging 9.5 million

  8. Gasoline prices continue to decrease nationally (long version)

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

    long version) The U.S. average retail price for regular gasoline fell to $3.58 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. Pump prices were highest in the West Coast region at 3.95 a gallon, up 6 cents from a week ago, marking the highest regional increase. Prices were lowest in the Gulf Coast States at 3.38 a gallon, down a tenth of a penny.

  9. U.S. gasoline price continues to increase (long version)

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

    long version) The U.S. average retail price for regular gasoline rose to $2.30 a gallon on Monday. That's up 5.8 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 2.66 a gallon, up 1.4 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.06 a gallon, up 7.7 cents.

  10. Technical comparison between Hythane, GNG and gasoline fueled vehicles

    SciTech Connect (OSTI)

    Not Available

    1992-05-01

    This interim report documents progress on this 2-year Alternative Fuel project, scheduled to end early 1993. Hythane is 85 vol% compressed natural gas (CNG) and 15 vol% hydrogen; it has the potential to meet or exceed the California Ultra-Low Emission Vehicle (ULEV) standard. Three USA trucks (3/4 ton pickup) were operated on single fuel (unleaded gasoline, CNG, Hythane) in Denver. The report includes emission testing, fueling facility, hazard and operability study, and a framework for a national hythane strategy.

  11. Development of a Composite Non-Electrostatic Surface Complexation Model Describing Plutonium Sorption to Aluminosilicates

    SciTech Connect (OSTI)

    Powell, B A; Kersting, A; Zavarin, M; Zhao, P

    2008-10-28

    Due to their ubiquity in nature and chemical reactivity, aluminosilicate minerals play an important role in retarding actinide subsurface migration. However, very few studies have examined Pu interaction with clay minerals in sufficient detail to produce a credible mechanistic model of its behavior. In this work, Pu(IV) and Pu(V) interactions with silica, gibbsite (Aloxide), and Na-montmorillonite (smectite clay) were examined as a function of time and pH. Sorption of Pu(IV) and Pu(V) to gibbsite and silica increased with pH (4 to 10). The Pu(V) sorption edge shifted to lower pH values over time and approached that of Pu(IV). This behavior is apparently due to surface mediated reduction of Pu(V) to Pu(IV). Surface complexation constants describing Pu(IV)/Pu(V) sorption to aluminol and silanol groups were developed from the silica and gibbsite sorption experiments and applied to the montmorillonite dataset. The model provided an acceptable fit to the montmorillonite sorption data for Pu(V). In order to accurately predict Pu(IV) sorption to montmorillonite, the model required inclusion of ion exchange. The objective of this work is to measure the sorption of Pu(IV) and Pu(V) to silica, gibbsite, and smectite (montmorillonite). Aluminosilicate minerals are ubiquitous at the Nevada National Security Site and improving our understanding of Pu sorption to aluminosilicates (smectite clays in particular) is essential to the accurate prediction of Pu transport rates. These data will improve the mechanistic approach for modeling the hydrologic source term (HST) and provide sorption Kd parameters for use in CAU models. In both alluvium and tuff, aluminosilicates have been found to play a dominant role in the radionuclide retardation because their abundance is typically more than an order of magnitude greater than other potential sorbing minerals such as iron and manganese oxides (e.g. Vaniman et al., 1996). The sorption database used in recent HST models (Carle et al., 2006) and upscaled for use in CAU models (Stoller-Navarro, 2008) includes surface complexation constants for U, Am, Eu, Np and Pu (Zavarin and Bruton, 2004). Generally, between 15 to 30 datasets were used to develop the constants for each radionuclide. However, the constants that describe Pu sorption to aluminosilicates were developed using only 10 datasets, most of which did not specify the oxidation state of Pu in the experiment. Without knowledge or control of the Pu oxidation state, a high degree of uncertainty is introduced into the model. The existing Pu surface complexation model (e.g. Zavarin and Bruton, 2004) drastically underestimates Pu sorption and, thus, will overestimate Pu migration rates (Turner, 1995). Recent HST simulations at Cambric (Carle et al., 2006) suggest that the existing surface complexation model may underpredict Pu K{sub d}s by as much as 3 orders of magnitude. In order to improve HST and CAU-scale transport models (and, as a result, reduce the conservative nature Pu migration estimates), sorption experiments were performed over a range of solution conditions that brackets the groundwater chemistry of the Nevada National Security Site. The aluminosilicates examined were gibbsite, silica, and montmorillonite.

  12. Gas Chromatography Data Classification Based on Complex Coefficients of an Autoregressive Model

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

    Zhao, Weixiang; Morgan, Joshua T.; Davis, Cristina E.

    2008-01-01

    This paper introduces autoregressive (AR) modeling as a novel method to classify outputs from gas chromatography (GC). The inverse Fourier transformation was applied to the original sensor data, and then an AR model was applied to transform data to generate AR model complex coefficients. This series of coefficients effectively contains a compressed version of all of the information in the original GC signal output. We applied this method to chromatograms resulting from proliferating bacteria species grown in culture. Three types of neural networks were used to classify the AR coefficients: backward propagating neural network (BPNN), radial basis function-principal component analysismore » (RBF-PCA) approach, and radial basis function-partial least squares regression (RBF-PLSR) approach. This exploratory study demonstrates the feasibility of using complex root coefficient patterns to distinguish various classes of experimental data, such as those from the different bacteria species. This cognition approach also proved to be robust and potentially useful for freeing us from time alignment of GC signals.« less

  13. An experimental investigation of low octane gasoline in diesel engines.

    SciTech Connect (OSTI)

    Ciatti, S. A.; Subramanian, S.

    2011-09-01

    Conventional combustion techniques struggle to meet the current emissions norms. In particular, oxides of nitrogen (NO{sub x}) and particulate matter (PM) emissions have limited the utilization of diesel fuel in compression ignition engines. Advance combustion concepts have proved the potential to combine fuel efficiency and improved emission performance. Low-temperature combustion (LTC) offers reduced NO{sub x} and PM emissions with comparable modern diesel engine efficiencies. The ability of premixed, low-temperature compression ignition to deliver low PM and NO{sub x} emissions is dependent on achieving optimal combustion phasing. Diesel operated LTC is limited by early knocking combustion, whereas conventional gasoline operated LTC is limited by misfiring. So the concept of using an unconventional fuel with the properties in between those two boundary fuels has been experimented in this paper. Low-octane (84 RON) gasoline has shown comparable diesel efficiencies with the lowest NO{sub x} emissions at reasonable high power densities (NO{sub x} emission was 1 g/kW h at 12 bar BMEP and 2750 rpm).

  14. Bioventing approach to remediate a gasoline contaminated subsurface. Book chapter

    SciTech Connect (OSTI)

    Kampbell, D.H.; Wilson, J.T.; Griffin, C.J.

    1992-01-01

    Bioventing is a subsurface process using an air stream to enhance biodegradation of oily contaminants. Two pilot-scale bioventing systems were installed at a field site. Process operations began in October 1990. The field site is located at an air station. A spill in 1969 of about 100,000 kilograms aviation gasoline was caused by a broken underground transfer line. A major portion of the spilled product still persists as an oily-phase residue in a 80x360 meter plume. The subsurface is a uniform beach sand with the ground water level near five meters. Prior to startup of the venting systems, a grass cover was established and a nutrient solution was dispersed throughout the unsaturated subsurface. Subsurface air flow patterns are being determined with a tracer gas of sulfur hexafloride. Soil gas, core material, and underground water are being monitored to determine the extent of remediation. Objectives of the study are to demonstrate that surface emissions of gasoline are minimal, oily residue will be reduced to <100 mg fuel carbon/Kg core material, and the process will be applicable to full-scale remediation. Flow rate is based on a calculated residence time of 24 hours. Surface emission of fuel hydrocarbons have not exceeded 1 micrograms/liter soil gas.

  15. Gasoline-fueled hybrid vs. conventional vehicle emissions and fuel economy.

    SciTech Connect (OSTI)

    Anderson, J.; Bharathan, D.; He, J.; Plotkin, S.; Santini, D.; Vyas, A.

    1999-06-18

    This paper addresses the relative fuel economy and emissions behavior, both measured and modeled, of technically comparable, contemporary hybrid and conventional vehicles fueled by gasoline, in terms of different driving cycles. Criteria pollutants (hydrocarbons, carbon monoxide, and nitrogen oxides) are discussed, and the potential emissions benefits of designing hybrids for grid connection are briefly considered. In 1997, Toyota estimated that their grid-independent hybrid vehicle would obtain twice the fuel economy of a comparable conventional vehicle on the Japan 10/15 mode driving cycle. This initial result, as well as the fuel economy level (66 mpg), made its way into the U.S. press. Criteria emissions amounting to one-tenth of Japanese standards were cited, and some have interpreted these results to suggest that the grid-independent hybrid can reduce criteria emissions in the U.S. more sharply than can a conventional gasoline vehicle. This paper shows that the potential of contemporary grid-independent hybrid vehicle technology for reducing emissions and fuel consumption under U.S. driving conditions is less than some have inferred. The importance (and difficulty) of doing test and model assessments with comparable driving cycles, comparable emissions control technology, and comparable performance capabilities is emphasized. Compared with comparable-technology conventional vehicles, grid-independent hybrids appear to have no clear criteria pollutant benefits (or disbenefits). (Such benefits are clearly possible with grid-connectable hybrids operating in zero emissions mode.) However, significant reductions in greenhouse gas emissions (i.e., fuel consumption) are possible with hybrid vehicles when they are used to best advantage.

  16. U.S. gasoline prices decrease from previous week (short version)

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

    2, 2015 U.S. gasoline prices decrease from previous week (short version) The U.S. average retail price for regular gasoline fell to $2.80 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. This is Amerine Woodyard, with EIA, in Washington.

  17. U.S. gasoline prices fall to lowest level since February 2010 (short version)

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

    gasoline prices fall to lowest level since February 2010 (short version) The U.S. average retail price for regular gasoline fell to $2.68 a gallon on Monday. That's down 9.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  18. U.S. gasoline prices fall to lowest level since October 2009 (short version)

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

    gasoline prices fall to lowest level since October 2009 (short version) The U.S. average retail price for regular gasoline fell to $2.55 a gallon on Monday. That's down 12 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  19. Fact #741: August 20, 2012 Historical Gasoline Prices, 1929-2011

    Broader source: Energy.gov [DOE]

    When adjusted for inflation, the average annual price of gasoline in 2011 was $1.24 above the price of gasoline in 1929. The effect of the U.S. embargo of oil from Iran can be seen in the early...

  20. Direct determination of PB in gasoline emulsions using Ar and Ar-oxygen ICPs

    SciTech Connect (OSTI)

    Brenner, I.B.; Zander, A.; Shkolnik, J.; Kim, S.

    1995-12-31

    Lead in gasoline emulsions was determined by argon and argon-oxygen ICP-AES. Intensity variations of inorganic and organic lead species in aqueous solution and in gasoline and decalin emulsions were studied. In an aqueous solution Pb II intensities were higher than those observed in gasoline and decalin emulsions and were higher in the argon ICP than in an argon-oxygen plasma. Pb intensities were influenced by aerosol flow rate, oxygen doping and emulsion composition, which were all compensated by Y II the internal standard. Pb LODs in the emulsions were not significantly degraded relative to an aqueous solution, and were adequate for the direct determination of lead in gasoline at the mg/kg concentration. The accuracy of Pb determination in spiked gasoline emulsions and in NIST reference fuels was satisfactory. Mg II/Mg I ratios indicate that emulsion plasmas are similar to ICPs containing water only.

  1. Fact #834: August 18, 2014 About Two-Thirds of Transportation Energy Use is Gasoline for Light Vehicles – Dataset

    Broader source: Energy.gov [DOE]

    Excel file with dataset for Fact #834: About Two-Thirds of Transportation Energy Use is Gasoline for Light Vehicles

  2. Decreasing the temporal complexity for nonlinear, implicit reduced-order models by forecasting

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

    Carlberg, Kevin; Ray, Jaideep; van Bloemen Waanders, Bart

    2015-02-14

    Implicit numerical integration of nonlinear ODEs requires solving a system of nonlinear algebraic equations at each time step. Each of these systems is often solved by a Newton-like method, which incurs a sequence of linear-system solves. Most model-reduction techniques for nonlinear ODEs exploit knowledge of system's spatial behavior to reduce the computational complexity of each linear-system solve. However, the number of linear-system solves for the reduced-order simulation often remains roughly the same as that for the full-order simulation. We propose exploiting knowledge of the model's temporal behavior to (1) forecast the unknown variable of the reduced-order system of nonlinear equationsmore » at future time steps, and (2) use this forecast as an initial guess for the Newton-like solver during the reduced-order-model simulation. To compute the forecast, we propose using the Gappy POD technique. As a result, the goal is to generate an accurate initial guess so that the Newton solver requires many fewer iterations to converge, thereby decreasing the number of linear-system solves in the reduced-order-model simulation.« less

  3. Hiding the system from the user: Moving from complex mental models to elegant metaphors

    SciTech Connect (OSTI)

    Curtis W. Nielsen; David J. Bruemmer

    2007-08-01

    In previous work, increased complexity of robot behaviors and the accompanying interface design often led to operator confusion and/or a fight for control between the robot and operator. We believe the reason for the conflict was that the design of the interface and interactions presented too much of the underlying robot design model to the operator. Since the design model includes the implementation of sensors, behaviors, and sophisticated algorithms, the result was that the operators cognitive efforts were focused on understanding the design of the robot system as opposed to focusing on the task at hand. This paper illustrates how this very problem emerged at the INL and how the implementation of new metaphors for interaction has allowed us to hide the design model from the user and allow the user to focus more on the task at hand. Supporting the users focus on the task rather than on the design model allows increased use of the system and significant performance improvement in a search task with novice users.

  4. Decreasing the temporal complexity for nonlinear, implicit reduced-order models by forecasting

    SciTech Connect (OSTI)

    Carlberg, Kevin; Ray, Jaideep; van Bloemen Waanders, Bart

    2015-02-14

    Implicit numerical integration of nonlinear ODEs requires solving a system of nonlinear algebraic equations at each time step. Each of these systems is often solved by a Newton-like method, which incurs a sequence of linear-system solves. Most model-reduction techniques for nonlinear ODEs exploit knowledge of system's spatial behavior to reduce the computational complexity of each linear-system solve. However, the number of linear-system solves for the reduced-order simulation often remains roughly the same as that for the full-order simulation. We propose exploiting knowledge of the model's temporal behavior to (1) forecast the unknown variable of the reduced-order system of nonlinear equations at future time steps, and (2) use this forecast as an initial guess for the Newton-like solver during the reduced-order-model simulation. To compute the forecast, we propose using the Gappy POD technique. As a result, the goal is to generate an accurate initial guess so that the Newton solver requires many fewer iterations to converge, thereby decreasing the number of linear-system solves in the reduced-order-model simulation.

  5. Gasoline Ultra Efficient Fuel Vehicle with Advanced Low Temperature Combustion

    SciTech Connect (OSTI)

    Confer, Keith

    2014-09-30

    The objective of this program was to develop, implement and demonstrate fuel consumption reduction technologies which are focused on reduction of friction and parasitic losses and on the improvement of thermal efficiency from in-cylinder combustion. The program was executed in two phases. The conclusion of each phase was marked by an on-vehicle technology demonstration. Phase I concentrated on short term goals to achieve technologies to reduce friction and parasitic losses. The duration of Phase I was approximately two years and the target fuel economy improvement over the baseline was 20% for the Phase I demonstration. Phase II was focused on the development and demonstration of a breakthrough low temperature combustion process called Gasoline Direct- Injection Compression Ignition (GDCI). The duration of Phase II was approximately four years and the targeted fuel economy improvement was 35% over the baseline for the Phase II demonstration vehicle. The targeted tailpipe emissions for this demonstration were Tier 2 Bin 2 emissions standards.

  6. ,"U.S. Motor Gasoline Prices"

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

    Prices" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Motor Gasoline Prices",6,"Monthly","2/2016","1/15/1983" ,"Release Date:","5/2/2016" ,"Next Release Date:","6/1/2016" ,"Excel File Name:","pet_pri_allmg_c_nus_epm0_dpgal_m.xls"

  7. Selective Catalytic Reduction of Oxides of Nitrogen with Ethanol/Gasoline Blends over a Silver/Alumina Catalyst on Lean Gasoline Engine

    SciTech Connect (OSTI)

    Prikhodko, Vitaly Y; Pihl, Josh A; Toops, Todd J; Thomas, John F; Parks, II, James E; West, Brian H

    2015-01-01

    Ethanol is a very effective reductant of nitrogen oxides (NOX) over silver/alumina (Ag/Al2O3) catalysts in lean exhaust environment. With the widespread availability of ethanol/gasoline-blended fuel in the USA, lean gasoline engines equipped with an Ag/Al2O3 catalyst have the potential to deliver higher fuel economy than stoichiometric gasoline engines and to increase biofuel utilization while meeting exhaust emissions regulations. In this work a pre-commercial 2 wt% Ag/Al2O3 catalyst was evaluated on a 2.0-liter BMW lean burn gasoline direct injection engine for the selective catalytic reduction (SCR) of NOX with ethanol/gasoline blends. The ethanol/gasoline blends were delivered via in-pipe injection upstream of the Ag/Al2O3 catalyst with the engine operating under lean conditions. A number of engine conditions were chosen to provide a range of temperatures and space velocities for the catalyst performance evaluations. High NOX conversions were achieved with ethanol/gasoline blends containing at least 50% ethanol; however, higher C1/N ratio was needed to achieve greater than 90% NOX conversion, which also resulted in significant HC slip. Temperature and HC dosing were important in controlling selectivity to NH3 and N2O. At high temperatures, NH3 and N2O yields increased with increased HC dosing. At low temperatures, NH3 yield was very low, however, N2O levels became significant. The ability to generate NH3 under lean conditions has potential for application of a dual SCR approach (HC SCR + NH3 SCR) to reduce fuel consumption needed for NOX reduction and/or increased NOX conversion, which is discussed in this work.

  8. Oxy-gasoline torch. Innovative technology summary report

    SciTech Connect (OSTI)

    1998-12-01

    Under the deactivation and decommissioning (D and D) Implementation Plan of the US Department of Energy`s (DOE) Fernald Environmental Management Project (FEMP), non-recyclable process components and debris that are removed from buildings undergoing D and D are disposed of in an on-site disposal facility (OSDF). Critical to the design and operation of the FEMP`s OSDF are provisions to protect against subsidence of the OSDF`s cap. Subsidence of the cap could occur if void spaces within the OSDF were to collapse under the overburden of debris and the OSDF cap. Subsidence may create significant depressions in the OSDF`s cap in which rainwater could collect and eventually seep into the OSDF. To minimize voids in the FEMP`s OSDF, large metallic components are cut into smaller segments that can be arranged more compactly when placed in the OSDF. Component segmentation using an oxy-acetylene cutting torch was the baseline approach used by the FEMP`s D and D contractor on Plant 1, Babcock and Wilcox (B and W) Services, Inc., for the dismantlement and size-reduction of large metal components. Although this technology has performed satisfactorily, improvements are sought in the areas of productivity, airborne contamination, safety, and cost. This demonstration investigated the feasibility of using an oxy-gasoline torch as an alternative to the baseline oxy-acetylene torch for segmenting D and D components. This report provides a comparative analysis of the cost and performance of the baseline oxy-acetylene torch currently used by B and W Services, Inc., and the innovative oxy-gasoline torch.

  9. Modifications for use of methanol or methanol-gasoline blends in automotive vehicles, September 1976-January 1980

    SciTech Connect (OSTI)

    Patterson, D.J.; Bolt, J.A.; Cole, D.E.

    1980-01-01

    Methanol or blends of methanol and gasoline as automotive fuels may be attractive means for extending the nation's petroleum reserves. The present study was aimed at identifying potential problems and solutions for this use of methanol. Retrofitting of existing vehicles as well as future vehicle design have been considered. The use of ethanol or higher alcohols was not addressed in this study but will be included at a later date. Several potentially serious problems have been identified with methanol use. The most attractive solutions depend upon an integrated combination of vehicle modifications and fuel design. No vehicle problems were found which could not be solved with relatively minor developments of existing technology providing the methanol or blend fuel was itself engineered to ameliorate the solution. Research needs have been identified in the areas of lubrication and materials. These, while apparently solvable, must precede use of methanol or methanol-gasoline blends as motor fuels. Because of the substantial costs and complexities of a retrofitting program, use of methanol must be evaluated in relation to other petroleum-saving alternatives. Future vehicles can be designed initially to operate satisfactorily on these alternate fuels. However a specific fuel composition must be specified around which the future engines and vehicles can be designed.

  10. Effect of CNG start - gasoline run on emissions from a 3/4 ton pick-up truck

    SciTech Connect (OSTI)

    Springer, K.J.; Smith, L.R.; Dickinson, A.G.

    1994-10-01

    This paper describes experiments to determine the effect on exhaust emissions of starting on compressed natural gas (CNG) and then switching to gasoline once the catalyst reaches operating temperature. Carbon monoxide, oxides of nitrogen, and detailed exhaust hydrocarbon speciation data were obtained for dedicated CNG, then unleaded gasoline, and finally CNG start - gasoline run using the Federal Test Procedure at 24{degree}C and at -7{degree}C. The results was a reductiopn in emissions from the gasoline baseline, especially at -7{degree}C. It was estimated that CNG start - gasoline run resulted in a 71 percent reduction in potential ozone formation per mile. 3 refs., 6 figs., 11 tabs.

  11. Soil carbon sensitivity to temperature and carbon use efficiency compared across microbial-ecosystem models of varying complexity

    SciTech Connect (OSTI)

    Li, Jianwei; Wang, Gangsheng; Allison, Steven D.; Mayes, Melanie; Luo, Yiqi

    2014-01-01

    Global ecosystem models may require microbial components to accurately predict feedbacks between climate warming and soil decomposition, but it is unclear what parameters and levels of complexity are ideal for scaling up to the globe. Here we conducted a model comparison using a conventional model with first-order decay and three microbial models of increasing complexity that simulate short- to long-term soil carbon dynamics. We focused on soil carbon responses to microbial carbon use efficiency (CUE) and temperature. Three scenarios were implemented in all models: constant CUE (held at 0.31), varied CUE ( 0.016 C 1), and 50 % acclimated CUE ( 0.008 C 1). Whereas the conventional model always showed soil carbon losses with increasing temperature, the microbial models each predicted a temperature threshold above which warming led to soil carbon gain. The location of this threshold depended on CUE scenario, with higher temperature thresholds under the acclimated and constant scenarios. This result suggests that the temperature sensitivity of CUE and the structure of the soil carbon model together regulate the long-term soil carbon response to warming. Equilibrium soil carbon stocks predicted by the microbial models were much less sensitive to changing inputs compared to the conventional model. Although many soil carbon dynamics were similar across microbial models, the most complex model showed less pronounced oscillations. Thus, adding model complexity (i.e. including enzyme pools) could improve the mechanistic representation of soil carbon dynamics during the transient phase in certain ecosystems. This study suggests that model structure and CUE parameterization should be carefully evaluated when scaling up microbial models to ecosystems and the globe.

  12. Average U.S. household to spend $710 less on gasoline during 2015

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

    drivers to see big savings at the gasoline pump this summer U.S. consumers are expected to pay the lowest average price for gasoline in six years during this summer's driving season, mostly because of lower crude oil costs. In its new forecast, the U.S. Energy Information Administration said the price for regular gasoline should average $2.45 per gallon this summer. That's down more than a dollar from the $3.59 per gallon seen last summer, and the cheapest average summer pump price since 2009.

  13. Gasoline Biodesulfurization DE-FC07-97ID13570 FINAL REPORT

    SciTech Connect (OSTI)

    Pienkos, Philip T.

    2002-01-15

    Nine strains were identified to grow with gasoline as sole sulfur source. Two different genes were cloned from Gordonia terrae KGB1 and tested for the ability to support gasoline BDS. The first of these, fmoA, was cloned by screening a KGB1 gene library for the ability to convert indole to indigo (a sulfur-regulated capability in KGB1). The fmoA gene was overexpressed in a gasoline tolerant strain of Pseudomonas putida PpG1 and the recombinant strain was shown to convert thiophene to a dimer of thiophene sulfoxide at rates nearly two orders of magnitude higher than KGB1 could catalyze the reaction. Despite this high activity the recombinant PpG1 was unable to demonstrate any activity against gasoline either in shake flask or in bench-scale gasoline BDS bioreactor. A second gene (toeA) was cloned from KGB1 and shown to support growth of Rhodococcus erythropolis JB55 on gasoline. The toeA gene was also identified in another gasoline strain T. wratislaviensis EMT4, and was identified as a homolog of dszA from R. erythropolis IGTS8. Expression of this gene in JB55 supported conversion of DBTO2 (the natural substrate for DszA) to HPBS, but activity against gasoline was low and BDS results were inconsistent. It appeared that activity was directed against C2- and C3-thiophenes. Efforts to increase gene expression by plasmid manipulation, by addition of flavin reductase genes, or by expression in PpG1 were unsuccessful. The DszC protein (DBT monooxygenase) from IGTS8 has very little activity against the sulfur compounds in gasoline, but a mutant enzyme with a substitution of phenylalanine for valine at position 261 was shown to have an altered substrate range. This alteration resulted in increased activity against gasoline, with activity towards mainly C3- and C4-thiophenes and benzothiophene. A mutant library of dszB was constructed by RACHITT (W. C. Coco et al., DNA shuffling method for generating highly recombined genes and evolved enzymes. 2001. Nature Biotech. 19:354-359) method of in vitro recombination. Methods for analysis were developed and a preliminary analysis of the library was performed. A preliminary gasoline process design was constructed and process economics were determined based upon assumptions made from experimental results. The projected cost of gasoline BDS was determined to be competitive with current competing technologies.

  14. Areas Participating in the Oxygenated Gasoline Program (Released in the STEO July 1999)

    Reports and Publications (EIA)

    1999-01-01

    Section 211(m) of the Clean Air Act (42 U.S.C. 7401-7671q) requires that gasoline containing at least 2.7% oxygen by weight is to be used in the wintertime in those areas of the county that exceed the carbon monoxide National Ambient Air Quality Standards (NAAQS). The winter oxygenated gasoline program applies to all gasoline sold in the larger of the Consolidated Metropolitan Statistical Area (CMSA) or Metropolitan Statistical Area (MSA) in which the nonattainment area is located.

  15. Fact #889: September 7, 2015 Average Diesel Price Lower than Gasoline for

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

    Energy Historical Gas Prices File fotw#888_web.xlsx More Documents & Publications Fact #915: March 7, 2016 Average Historical Annual Gasoline Pump Price, 1929-2015 - Dataset Fact #835: August 25, 2014 Average Annual Gasoline Pump Price, 1929-2013 - Dataset Response to several FOIA requests - Renewable Energy. the First Time in Six Years - Dataset | Department of Energy

    Average Diesel Price Lower than Gasoline for the First Time in Six Years File fotw#889_web.xlsx More Documents

  16. Chapter 18: Understanding the Developing Cellulosic Biofuels Industry through Dynamic Modeling

    SciTech Connect (OSTI)

    Newes, E.; Inman, D.; Bush, B.

    2011-01-01

    The purpose of this chapter is to discuss a system dynamics model called the Biomass Scenario Model (BSM), which is being developed by the U.S. Department of Energy as a tool to better understand the interaction of complex policies and their potential effects on the burgeoning cellulosic biofuels industry in the United States. The model has also recently been expanded to include advanced conversion technologies and biofuels (i.e., conversion pathways that yield biomass-based gasoline, diesel, jet fuel, and butanol), but we focus on cellulosic ethanol conversion pathways here. The BSM uses a system dynamics modeling approach (Bush et al., 2008) built on the STELLA software platform.

  17. Effect of Gasoline Properties on Exhaust Emissions from Tier 2 Light-Duty Vehicles -- Final Report: Phases 4, 5, & 6; July 28, 2008 - July 27, 2013

    SciTech Connect (OSTI)

    Whitney, K.; Shoffner, B.

    2014-06-01

    This report covers work the Southwest Research Institute (SwRI) Office of Automotive Engineering has conducted for the National Renewable Energy Laboratory (NREL) in support of the Energy Policy Act of 2005 (EPAct). Section 1506 of EPAct requires the EPA to produce an updated fuel effects model representing the 2007 light-duty gasoline fleet, including determination of the emissions impacts of increased renewable fuel use.

  18. Use and Application of the ARCON96 Dispersion Model at the Y-12 Complex

    SciTech Connect (OSTI)

    Walker, D.A.; Lee, D.W.; Miller, R.L.

    2001-06-04

    The Atmospheric Relative Concentrations in Building Wakes computer code (ARCON96) was developed for the U.S. Nuclear Regulatory Commission (NRC) to calculate normalized concentrations in plumes from nuclear power plants at control room air intakes in the vicinity of hypothetical accidental releases. ARCON96 implements a straight-line Gaussian dispersion model with dispersion coefficients that are modified to account for low-wind-speed meander and building wake effects. These two modifications to the dispersion coefficients were benchmarked and justified in the ARCON96 code documentation. The code calculates {chi}/Q values (normalized concentrations) consistent with the methodology defined in NRC Regulatory Guide (RG) 1.145, position 3. Based on recent U. S. Department of Energy (DOE) acceptance of NRC RG 1.145, position 3 methodology for performing accident dispersion analyses, BWXT Y-12 L.L.C. evaluated the potential use and application for performing dispersion analyses at the Y-12 Complex. Using site specific meteorology inputs, a generic analysis (assuming ground-level releases) was performed to develop site-wide normalized concentrations for various distances to be used in consequence screening analyses. Additionally, the results were compared to other dispersion analysis models for confirmation of the results.

  19. Beyond a Billion: Clean Cities Coaliations Have Displaced More Than a Billion Gallons of Gasoline

    SciTech Connect (OSTI)

    Not Available

    2005-10-01

    In 2004, DOE's Clean Cities achieved a milestone - displacing the equivalent of more than 1 billion gallons of gasoline since 1994. This fact sheet describes how Clean Cities achieved this goal.

  20. Fact #861 February 23, 2015 Idle Fuel Consumption for Selected Gasoline and Diesel Vehicles

    Broader source: Energy.gov [DOE]

    Based on a worksheet developed by Argonne National Laboratory, the idle fuel consumption rate for selected gasoline and diesel vehicles with no load (no use of accessories such as air conditioners,...