National Library of Energy BETA

Sample records for ratio seer natural

  1. High SEER Residential AC

    SciTech Connect

    Hastbacka, Mildred; Dieckmann, John; Brodrick, James

    2012-07-31

    This article discusses the new offerings of residential air conditioning systems with very high Seasonal Energy Efficiency Ratio (SEER) ratings, the two regional areas dictating operations standards ("hot, humid" and "hot, dry"), and the potential energy savings these new systems can provide. The article concludes with a brief review of current market potential.

  2. PNNL:About PNNL:SEER Awards

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    External Recognition Opportunity Calendar The SEER Program offers a formal, centralized process for recognitions and awards for individual researchers. Through a structured...

  3. 13 SEER Standard for Central Air Conditioners and Heat Pumps (released in AEO2005)

    Reports and Publications

    2005-01-01

    In January 2004, after years of litigation in a case that pitted environmental groups and Attorneys General from 10 states against the U.S. Secretary of Energy, the U.S. Court of Appeals for the Second Circuit reestablished the central air conditioner and heat pump standard originally set in January 200. The Courts ruling, which struck down a May 2002 rollback of the 2001 standard to a 12 Seasonal Energy Efficiency Ratio (SEER) mandates that all new central air conditioners and heat pumps meet a 13 SEER standard by January 2006, requiring a 30% increase in efficiency relative to current law. The Annual Energy Outlook 2005 reference case incorporates the 13 SEER standard as mandated by the Courts ruling.

  4. Strategies for Energy Efficient Remodeling: SEER 2003 Case Study Report

    SciTech Connect

    2004-11-01

    The goal of the Strategies for Energy Efficiency in Remodeling (SEER) project is to provide information, based on research and case studies, to remodelers and consumers about opportunities to increase home energy performance.

  5. A Natural Gas, High Compression Ratio, High Efficiency ICRE ...

    Energy.gov [DOE] (indexed site)

    Using natural gas and gasoline modeling, indications are that a free piston-floating stroke engine configuration can realize engine efficiency greater than 60 percent. ...

  6. Energy Savings and Peak Demand Reduction of a SEER 21 Heat Pump vs. a SEER 13 Heat Pump with Attic and Indoor Duct Systems

    SciTech Connect

    Cummings, J.

    2014-03-01

    This report describes results of experiments that were conducted in an unoccupied 1600 square foot house--the Manufactured Housing (MH Lab) at the Florida Solar Energy Center (FSEC)--to evaluate the delivered performance as well as the relative performance of a SEER 21 variable capacity heat pump versus a SEER 13 heat pump. The performance was evaluated with two different duct systems: a standard attic duct system and an indoor duct system located in a dropped-ceiling space.

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

    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

  8. Dimensions and aspect ratios of natural ice crystals

    DOE PAGES [OSTI]

    Um, J.; McFarquhar, G. M.; Hong, Y. P.; Lee, S. -S.; Jung, C. H.; Lawson, R. P.; Mo, Q.

    2014-12-10

    During the 2006 Tropical Warm Pool International Cloud Experiment (TWP-ICE) in the Tropics, the 2008 Indirect and Semi-Direct Aerosol Campaign (ISDAC) in the Arctic, and the 2010 Small PARTicles In CirrUS (SPARTICUS) campaign in mid-latitudes, high-resolution images of ice crystals were recorded by a Cloud Particle Imager at temperatures (T) between -87 and 0 °C. The projected maximum dimension (D'), length (L'), and width (W') of pristine columns, plates, and component bullets of bullet rosettes were measured using newly developed software, the Ice Crystal Ruler. The number of bullets in each bullet rosette was also measured. Column crystals were furthermore » distinguished as either horizontally oriented columns or columns with other orientations to eliminate any orientation effect on the measured dimensions. Dimensions and aspect ratios (AR, dimension of major axis divided by dimension of minor axis) of crystals were determined as functions of temperature, geophysical location, and type of cirrus. Dimensions of crystals generally increased as temperature increased. Columns and bullets had larger dimensions (i.e., W') of the minor axis (i.e., a axis) for a given dimension (i.e., D' or L') of the major axis (i.e., c axis), and thus smaller AR, as T increased, whereas this trend did not occur for plate crystals. The average number of branches in bullet rosettes was 5.50±1.35 during three campaigns and 6.32±1.34 (5.46±1.34; 4.95±1.01) during TWP-ICE (SPARTICUS; ISDAC). The AR of bullets increased with the number of branches in bullet rosettes. Most dimensions of crystals and ARs of columnar crystals measured during SPARTICUS were larger than those measured during TWP-ICE and ISDAC at −67 < T < −35 °C and at −40 < T < −15 °C, respectively. The relative occurrence of varying pristine habits depended strongly on cirrus type (i.e., anvil or non-anvil clouds), with plates especially occurring more frequently in anvils. The L–W relationships of columns

  9. Dimensions and aspect ratios of natural ice crystals

    DOE PAGES [OSTI]

    Um, J.; McFarquhar, G. M.; Hong, Y. P.; Lee, S. -S.; Jung, C. H.; Lawson, R. P.; Mo, Q.

    2015-04-15

    During the 2006 Tropical Warm Pool International Cloud Experiment (TWP-ICE) in the tropics, the 2008 Indirect and Semi-Direct Aerosol Campaign (ISDAC) in the Arctic, and the 2010 Small PARTicles In CirrUS (SPARTICUS) campaign at mid-latitudes, high-resolution images of ice crystals were recorded by a Cloud Particle Imager at temperatures (T) between -87 and 0 °C. The projected maximum dimension (D'), length (L'), and width (W') of pristine columns, plates, and component bullets of bullet rosettes were measured using newly developed software, the Ice Crystal Ruler. The number of bullets in each bullet rosette was also measured. Column crystals were furthermore » distinguished as either horizontally oriented columns or columns with other orientations to eliminate any orientation effect on the measured dimensions. The dimensions and aspect ratios (AR, the dimension of the major axis divided by the dimension of the minor axis) of crystals were determined as functions of temperature, geophysical location, and type of cirrus. Dimensions of crystals generally increased with temperature. Columns and bullets had larger dimensions (i.e., W') of the minor axis (i.e., a axis) for a given dimension (i.e., D' orL') of the major axis (i.e., c axis), and thus smaller AR, as T increased, whereas this trend did not occur for plate crystals. The average number of branches in bullet rosettes was 5.50 ± 1.35 during three campaigns and 6.32 ± 1.34 (5.46 ± 1.34; 4.95 ± 1.01) during TWP-ICE (SPARTICUS; ISDAC). The AR of bullets increased with the number of branches in bullet rosettes. Most dimensions of crystals and ARs of columnar crystals measured during SPARTICUS were larger than those measured during TWP-ICE and ISDAC at −67 < T < -35 °C and at −40 < T < −15 °C, respectively. The relative occurrence of varying pristine habits depended strongly on cirrus type (i.e., anvil or non-anvil clouds), with plates especially occurring more frequently in anvils. The L

  10. Experimental research on heat transfer of natural convection in vertical rectangular channels with large aspect ratio

    SciTech Connect

    Lu, Qing; Qiu, Suizheng; Su, Guanghui; Tian, Wenxi; Ye, Zhonghao

    2010-01-15

    This work presents the experimental research on the steady laminar natural convection heat transfer of air in three vertical thin rectangular channels with different gap clearance. The much higher ratio of width to gap clearance (60-24) and the ratio of length to gap clearance (800-320) make the rectangular channels similar with the coolant flow passage in plate type fuel reactors. The vertical rectangular channels were composed of two stainless steal plates and were heated by electrical heating rods. The wall temperatures were detected with the K-type thermocouples which were inserted into the blind holes drilled in the steal plates. Also the air temperatures at the inlet and outlet of the channel were detected. The wall heat fluxes added to the air flow were calculated by the Fourier heat conduction law. The heat transfer characteristics were analyzed, and the average Nusselt numbers in all the three channels could be well correlated with the Rayleigh number or the modified Rayleigh number in a uniform correlation. Furthermore, the maximum wall temperatures were investigated, which is a key parameter for the fuel's integrity during some accidents. It was found that even the wall heat flux was up to 1500 W/m{sup 2}, the maximum wall temperature was lower than 350 C. All this work is valuable for the plate type reactor's design and safety analysis. (author)

  11. Infant Brain Tumors: Incidence, Survival, and the Role of Radiation Based on Surveillance, Epidemiology, and End Results (SEER) Data

    SciTech Connect

    Bishop, Andrew J.; McDonald, Mark W.; Chang, Andrew L.; Esiashvili, Natia

    2012-01-01

    Purpose: To evaluate the incidence of infant brain tumors and survival outcomes by disease and treatment variables. Methods and Materials: The Surveillance, Epidemiology, and End Results (SEER) Program November 2008 submission database provided age-adjusted incidence rates and individual case information for primary brain tumors diagnosed between 1973 and 2006 in infants less than 12 months of age. Results: Between 1973 and 1986, the incidence of infant brain tumors increased from 16 to 40 cases per million (CPM), and from 1986 to 2006, the annual incidence rate averaged 35 CPM. Leading histologies by annual incidence in CPM were gliomas (13.8), medulloblastoma and primitive neuroectodermal tumors (6.6), and ependymomas (3.6). The annual incidence was higher in whites than in blacks (35.0 vs. 21.3 CPM). Infants with low-grade gliomas had the highest observed survival, and those with atypical teratoid rhabdoid tumors (ATRTs) or primary rhabdoid tumors of the brain had the lowest. Between 1979 and 1993, the annual rate of cases treated with radiation within the first 4 months from diagnosis declined from 20.5 CPM to <2 CPM. For infants with medulloblastoma, desmoplastic histology and treatment with both surgery and upfront radiation were associated with improved survival, but on multivariate regression, only combined surgery and radiation remained associated with improved survival, with a hazard ratio for death of 0.17 compared with surgery alone (p = 0.005). For ATRTs, those treated with surgery and upfront radiation had a 12-month survival of 100% compared with 24.4% for those treated with surgery alone (p = 0.016). For ependymomas survival was higher in patients treated in more recent decades (p = 0.001). Conclusion: The incidence of infant brain tumors has been stable since 1986. Survival outcomes varied markedly by histology. For infants with medulloblastoma and ATRTs, improved survival was observed in patients treated with both surgery and early radiation

  12. Patterns of Care and Locoregional Treatment Outcomes in Older Esophageal Cancer Patients: The SEER-Medicare Cohort

    SciTech Connect

    Smith, Grace L.; Smith, Benjamin D.; Buchholz, Thomas A.; Liao Zhongxing; Jeter, Melenda; Swisher, Stephen G. M.D.; Hofstetter, Wayne L.; Ajani, Jaffer A.; McAleer, Mary F.; Komaki, Ritsuko; Cox, James D.

    2009-06-01

    Purpose: Optimal management of elderly patients with nonmetastatic esophageal cancer is unclear. Outcomes data after locoregional treatment are lacking for this group. Methods: We assessed outcomes associated with standard locoregional treatments in 2,626 patients (age > 65 years) from the Surveillance Epidemiology and End Results (SEER)-Medicare cohort diagnosed with nonmetastatic esophageal cancer from 1992 to 2002. In patients treated with radiotherapy alone (RT), surgery alone (S), chemoradiotherapy (CRT), or preoperative chemotherapy followed by surgery (CRT + S), overall and disease-free survival were compared using proportional hazards regression. Postoperative complications were compared using logistic regression. Results: Mean age was 76 {+-} 6 years. Seven percent underwent CRT + S, 39% CRT, 30% S, and 24% RT. One-year survival was 68% (CRT + S), 52% (CRT), 53% (S), and 16% (RT), respectively (p < 0.001). Patients who underwent CRT + S demonstrated improved overall survival compared with S alone (hazard ratio [HR] = 0.81; 95% confidence interval [CI], 0.66-0.98; p = 0.03) and RT (HR = 0.44; 95% CI, 0.35-0.55; p < 0.0001); and comparable survival to CRT (HR = 0.82; 95% CI, 0.67-1.01; p = 0.06). Patients who underwent CRT + S also had comparable postoperative mortality (HR = 0.96; 95% CI, 0.87-1.07; p = 0.45) and complications (OR = 0.89; 95% CI, 0.70-1.14; p = 0.36) compared with S alone. Conclusions: Preoperative chemoradiotherapy may be an acceptable treatment option in appropriately selected older esophageal cancer patients. This treatment modality did not appear to increase surgical complications and offered potential therapeutic benefit, particularly compared with surgery alone.

  13. Lung Cancer Survival Prediction using Ensemble Data Mining on Seer Data

    DOE PAGES [OSTI]

    Agrawal, Ankit; Misra, Sanchit; Narayanan, Ramanathan; Polepeddi, Lalith; Choudhary, Alok

    2012-01-01

    We analyze the lung cancer data available from the SEER program with the aim of developing accurate survival prediction models for lung cancer. Carefully designed preprocessing steps resulted in removal/modification/splitting of several attributes, and 2 of the 11 derived attributes were found to have significant predictive power. Several supervised classification methods were used on the preprocessed data along with various data mining optimizations and validations. In our experiments, ensemble voting of five decision tree based classifiers and meta-classifiers was found to result in the best prediction performance in terms of accuracy and area under the ROC curve. We have developedmore » an on-line lung cancer outcome calculator for estimating the risk of mortality after 6 months, 9 months, 1 year, 2 year and 5 years of diagnosis, for which a smaller non-redundant subset of 13 attributes was carefully selected using attribute selection techniques, while trying to retain the predictive power of the original set of attributes. Further, ensemble voting models were also created for predicting conditional survival outcome for lung cancer (estimating risk of mortality after 5 years of diagnosis, given that the patient has already survived for a period of time), and included in the calculator. The on-line lung cancer outcome calculator developed as a result of this study is available at http://info.eecs.northwestern.edu:8080/LungCancerOutcomeCalculator/.« less

  14. High-precision determination of {sup 234}U/{sup 238}U activity ratios in natural waters and carbonates by ICPMS

    SciTech Connect

    Ketterer, M.E.; Khourey, C.J.

    1998-12-31

    A method has been developed for precise measurement of {sup 234}U/{sup 238}U activity ratios in natural waters and carbonates using quadrupole inductively coupled plasma mass spectrometry. A recovery of 80--85% of seawater U is achieved by Fe(III) coprecipitation followed by extraction chromatography with a supported dipentyl pentane phosphonate material; 90--95% of U is recovered from carbonates, which are dissolved in HNO{sub 3} and subjected to the same extraction chromatographic preparation. Isotopic measurements are made via recirculating pneumatic nebulization of small volumes of solutions containing 0.5--5 mg/L U. {sup 234}U/{sup 235}U is measured as a proxy for determination of {sup 234}U/{sup 238}U; iridium is added to sample solutions and the ion ratio {sup 191}Ir{sup 40}Ar{sup +}/{sup 193}Ir{sup 40}Ar{sup +} is measured for internal mass discrimination correction {sup 234}U/{sup 238}U activity ratios in the range 1.143--1.154 are observed for 13 seawater and contemporary corals, in agreement with the established marine {sup 234}U/{sup 238}U activity ratio. For samples sizes of 5--25 {micro}g U, ICPMS uncertainties of {+-} 0.2--0.5% relative, 2{theta} standard error, approach those obtained for < 0.1 {micro}g U by thermal ionization mass spectrometry. Measurements of {sup 234}U/{sup 238}U activity ratios in bottled waters, Lake Erie surface waters, mollusk fossils, and fertilizers are also demonstrated.

  15. Adjuvant Brachytherapy Removes Survival Disadvantage of Local Disease Extension in Stage IIIC Endometrial Cancer: A SEER Registry Analysis

    SciTech Connect

    Rossi, Peter J. Jani, Ashesh B.; Horowitz, Ira R.; Johnstone, Peter A.S.

    2008-01-01

    Purpose: To assess the role of radiotherapy (RT) in women with Stage IIIC endometrial cancer. Methods and Materials: The 17-registry Survival, Epidemiology, and End Results (SEER) database was searched for patients with lymph node-positive non-Stage IV epithelial endometrial cancer diagnosed and treated between 1988 and 1998. Two subgroups were identified: those with organ-confined Stage IIIC endometrial cancer and those with Stage IIIC endometrial cancer with direct extension of the primary tumor. RT was coded as external beam RT (EBRT) or brachytherapy (BT). Observed survival (OS) was reported with a minimum of 5 years of follow-up; the survival curves were compared using the log-rank test. Results: The therapy data revealed 611 women with Stage IIIC endometrial cancer during this period. Of these women, 51% were treated with adjuvant EBRT, 21% with EBRT and BT, and 28% with no additional RT (NAT). Of the 611 patients, 293 had organ-confined Stage IIIC endometrial cancer and 318 patients had Stage IIIC endometrial cancer with direct extension of the primary tumor. The 5-year OS rate for all patients was 40% with NAT, 56% after EBRT, and 64% after EBRT/BT. Adjuvant RT improved survival compared with NAT (p <0.001). In patients with organ-confined Stage IIIC endometrial cancer, the 5-year OS rate was 50% for NAT, 64% for EBRT, and 67% for EBRT/BT. Again, adjuvant RT contributed to improved survival compared with NAT (p = 0.02). In patients with Stage IIIC endometrial cancer and direct tumor extension, the 5-year OS rate was 34% for NAT, 47% for EBRT, and 63% for EBRT/BT. RT improved OS compared with NAT (p <0.001). Also, in this high-risk subgroup, adding BT to EBRT was superior to EBRT alone (p = 0.002). Conclusion: Women with Stage IIIC endometrial cancer receiving adjuvant EBRT and EBRT/BT had improved OS compared with patients receiving NAT. When direct extension of the primary tumor was present, the addition of BT to EBRT was even more beneficial.

  16. ARM - Measurement - Isotope ratio

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    govMeasurementsIsotope ratio ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Isotope ratio Ratio of stable isotope concentrations. Categories Atmospheric State, Atmospheric Carbon Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those

  17. " Column: Energy-Consumption Ratios;"

    Energy Information Administration (EIA) (indexed site)

    3 Consumption Ratios of Fuel, 2010;" " Level: National Data; " " Row: Values of Shipments within NAICS Codes;" " Column: Energy-Consumption Ratios;" " Unit: Varies." ...

  18. Peak power ratio generator

    DOEpatents

    Moyer, R.D.

    A peak power ratio generator is described for measuring, in combination with a conventional power meter, the peak power level of extremely narrow pulses in the gigahertz radio frequency bands. The present invention in a preferred embodiment utilizes a tunnel diode and a back diode combination in a detector circuit as the only high speed elements. The high speed tunnel diode provides a bistable signal and serves as a memory device of the input pulses for the remaining, slower components. A hybrid digital and analog loop maintains the peak power level of a reference channel at a known amount. Thus, by measuring the average power levels of the reference signal and the source signal, the peak power level of the source signal can be determined.

  19. Peak power ratio generator

    DOEpatents

    Moyer, Robert D.

    1985-01-01

    A peak power ratio generator is described for measuring, in combination with a conventional power meter, the peak power level of extremely narrow pulses in the gigahertz radio frequency bands. The present invention in a preferred embodiment utilizes a tunnel diode and a back diode combination in a detector circuit as the only high speed elements. The high speed tunnel diode provides a bistable signal and serves as a memory device of the input pulses for the remaining, slower components. A hybrid digital and analog loop maintains the peak power level of a reference channel at a known amount. Thus, by measuring the average power levels of the reference signal and the source signal, the peak power level of the source signal can be determined.

  20. Energy Profit Ratio Compared

    SciTech Connect

    Amano, Osamu

    2007-07-01

    We need more oil energy to take out oil under the ground. Limit resources make us consider other candidates of energy source instead of oil. Electricity shall be the main role more and more like electric vehicles and air conditioners so we should consider electricity generation ways. When we consider what kind of electric power generation is the best or suitable, we should not only power generation plant but whole process from mining to power generation. It is good way to use EPR, Energy Profit Ratio, to analysis which type is more efficient and which part is to do research and development when you see the input breakdown analysis. Electricity by the light water nuclear power plant, the hydrogen power plant and the geothermal power plant are better candidates from EPR analysis. Forecasting the world primly energy supply in 2050, it is said that the demand will be double of the demand in 2000 and the supply will not be able to satisfy the demand in 2050. We should save 30% of the demand and increase nuclear power plants 3.5 times more and recyclable energy like hydropower plants 3 times more. When the nuclear power plants are 3.5 times more then uranium peak will come and we will need breed uranium. I will analysis the EPR of FBR. Conclusion: A) the EPR of NPS in Japan is 17.4 and it is the best of all. B) Many countries will introduce new nuclear power plants rapidly may be 3.5 times in 2050. C) Uranium peak will happen around 2050. (author)

  1. Radioactive anomaly discrimination from spectral ratios

    DOEpatents

    Maniscalco, James; Sjoden, Glenn; Chapman, Mac Clements

    2013-08-20

    A method for discriminating a radioactive anomaly from naturally occurring radioactive materials includes detecting a first number of gamma photons having energies in a first range of energy values within a predetermined period of time and detecting a second number of gamma photons having energies in a second range of energy values within the predetermined period of time. The method further includes determining, in a controller, a ratio of the first number of gamma photons having energies in the first range and the second number of gamma photons having energies in the second range, and determining that a radioactive anomaly is present when the ratio exceeds a threshold value.

  2. Field Monitoring Protocol: Mini-Split Heat Pumps

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ......... 24 Figure 16. MSHP outdoor condensing unit total power ... humidity RPM revolutions per minute SEER seasonal energy efficiency ratio 1 ...

  3. High ratio recirculating gas compressor

    DOEpatents

    Weinbrecht, John F.

    1989-01-01

    A high ratio positive displacement recirculating rotary compressor is disclosed. The compressor includes an integral heat exchanger and recirculation conduits for returning cooled, high pressure discharge gas to the compressor housing to reducing heating of the compressor and enable higher pressure ratios to be sustained. The compressor features a recirculation system which results in continuous and uninterrupted flow of recirculation gas to the compressor with no direct leakage to either the discharge port or the intake port of the compressor, resulting in a capability of higher sustained pressure ratios without overheating of the compressor.

  4. High ratio recirculating gas compressor

    DOEpatents

    Weinbrecht, J.F.

    1989-08-22

    A high ratio positive displacement recirculating rotary compressor is disclosed. The compressor includes an integral heat exchanger and recirculation conduits for returning cooled, high pressure discharge gas to the compressor housing to reducing heating of the compressor and enable higher pressure ratios to be sustained. The compressor features a recirculation system which results in continuous and uninterrupted flow of recirculation gas to the compressor with no direct leakage to either the discharge port or the intake port of the compressor, resulting in a capability of higher sustained pressure ratios without overheating of the compressor. 10 figs.

  5. Energy Balance Bowen Ratio System

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    0 Energy Balance Bowen Ratio System Estimates of surface energy fluxes are a primary product of the data collection systems at the ARM SGP CART site. Surface fluxes tell ...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Compression Ratio High Efficiency ICRE Modeling and Analysis of Natural Gas and Gasoline ... A Natural Gas, High Compression Ratio, High Efficiency ICRE Advanced CombustionModeling ...

  7. Cold versus hot fusion deuterium branching ratios

    SciTech Connect

    Fox, H.; Bass, R.

    1995-12-31

    A major source of misunderstanding of the nature of cold nuclear fusion has been the expectation that the deuterium branching ratios occurring within a palladium lattice would be consistent with the gas-plasma branching ratios. This misunderstanding has led to the concept of the dead graduate student, the 1989`s feverish but fruitless search for neutron emissions from cold fusion reactors, and the follow-on condemnation of the new science of cold fusion. The experimental facts are that in a properly loaded palladium lattice, the deuterium fusion produces neutrons at little above background, a greatly less-than-expected production of tritium (the tritium desert), and substantially more helium-4 than is observed in hot plasma physics. The experimental evidence is now compelling (800 reports of success from 30 countries) that cold nuclear fusion is a reality, that the branching ratios are unexpected, and that a new science is struggling to be recognized. Commercialization of some types of cold fusion devices has already begun.

  8. Utilizing Isotopic Uranium Ratios in Groundwater Evaluations at FUSRAP Sites

    SciTech Connect

    Frederick, W.T.; Keil, K.G.; Rhodes, M.C.; Peterson, J.M.; MacDonell, M.M.

    2007-07-01

    The U.S. Army Corps of Engineers Buffalo District is evaluating environmental radioactive contamination at several Formerly Utilized Sites Remedial Action Program (FUSRAP) sites throughout New York, Pennsylvania, Ohio, and Indiana. The investigations follow the process defined in the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA). Groundwater data from the Niagara Falls Storage Site (NFSS) in Lewiston, New York were evaluated for isotopic uranium ratios, specifically uranium-234 versus uranium-238 (U- 234 and U-238, respectively), and the results were presented at Waste Management 2006. Since uranium naturally occurs in all groundwater, it can be difficult to distinguish where low-concentration impacts from past releases differ from the high end of a site-specific natural background range. In natural groundwater, the ratio of U-234 to U-238 exceeds 1 (unity) due to the alpha particle recoil effect, in which U-234 is preferentially mobilized to groundwater from adjacent rock or soil. This process is very slow and may take hundreds to thousands of years before a measurable increase is seen in the natural isotopic ratio. If site releases are the source of uranium being measured in groundwater, the U-234 to U-238 ratio is commonly closer to 1, which normally reflects FUSRAP-related, uranium-contaminated wastes and soils. This lower ratio occurs because not enough residence time has elapsed since the 1940's and 1950's for the alpha particle recoil effect to have significantly altered the contamination-derived ratio. An evaluation of NFSS-specific and regional groundwater data indicate that an isotopic ratio of 1.2 has been identified as a signature value to help distinguish natural groundwater, which may have a broad background range, from zones impacted by past releases. (authors)

  9. Envera Variable Compression Ratio Engine

    SciTech Connect

    Charles Mendler

    2011-03-15

    Aggressive engine downsizing, variable compression ratio and use of the Atkinson cycle are being combined to improve fuel economy by up to 40 percent relative to port fuel injected gasoline engines, while maintaining full engine power. Approach Engine downsizing is viewed by US and foreign automobile manufacturers as one of the best options for improving fuel economy. While this strategy has already demonstrated a degree of success, downsizing and fuel economy gains are currently limited. With new variable compression ratio technology however, the degree of engine downsizing and fuel economy improvement can be greatly increased. A small variable compression ratio (VCR) engine has the potential to return significantly higher vehicle fuel economy while also providing high power. Affordability and potential for near term commercialization are key attributes of the Envera VCR engine. VCR Technology To meet torque and power requirements, a smaller engine needs to do more work per stroke. This is typically accomplished by boosting the incoming charge with either a turbo or supercharger so that more energy is present in the cylinder per stroke to do the work. With current production engines the degree of engine boosting (which correlates to downsizing) is limited by detonation (combustion knock) at high boost levels. Additionally, the turbo or supercharger needs to be responsive and efficient while providing the needed boost. VCR technology eliminates the limitation of engine knock at high load levels by reducing compression ratio to {approx}9:1 (or whatever level is appropriate) when high boost pressures are needed. By reducing the compression ratio during high load demand periods there is increased volume in the cylinder at top dead center (TDC) which allows more charge (or energy) to be present in the cylinder without increasing the peak pressure. Cylinder pressure is thus kept below the level at which the engine would begin to knock. When loads on the engine are low

  10. Variable ratio regenerative braking device

    DOEpatents

    Hoppie, Lyle O.

    1981-12-15

    Disclosed is a regenerative braking device (10) for an automotive vehicle. The device includes an energy storage assembly (12) having a plurality of rubber rollers (26, 28) mounted for rotation between an input shaft (36) and an output shaft (42), clutches (38, 46) and brakes (40, 48) associated with each shaft, and a continuously variable transmission (22) connectable to a vehicle drivetrain and to the input and output shafts by the respective clutches. The rubber rollers are torsionally stressed to accumulate energy from the vehicle when the input shaft is clutched to the transmission while the brake on the output shaft is applied, and are torsionally relaxed to deliver energy to the vehicle when the output shaft is clutched to the transmission while the brake on the input shaft is applied. The transmission ratio is varied to control the rate of energy accumulation and delivery for a given rotational speed of the vehicle drivetrain.

  11. Weather-Corrected Performance Ratio

    SciTech Connect

    Dierauf, T.; Growitz, A.; Kurtz, S.; Cruz, J. L. B.; Riley, E.; Hansen, C.

    2013-04-01

    Photovoltaic (PV) system performance depends on both the quality of the system and the weather. One simple way to communicate the system performance is to use the performance ratio (PR): the ratio of the electricity generated to the electricity that would have been generated if the plant consistently converted sunlight to electricity at the level expected from the DC nameplate rating. The annual system yield for flat-plate PV systems is estimated by the product of the annual insolation in the plane of the array, the nameplate rating of the system, and the PR, which provides an attractive way to estimate expected annual system yield. Unfortunately, the PR is, again, a function of both the PV system efficiency and the weather. If the PR is measured during the winter or during the summer, substantially different values may be obtained, making this metric insufficient to use as the basis for a performance guarantee when precise confidence intervals are required. This technical report defines a way to modify the PR calculation to neutralize biases that may be introduced by variations in the weather, while still reporting a PR that reflects the annual PR at that site given the project design and the project weather file. This resulting weather-corrected PR gives more consistent results throughout the year, enabling its use as a metric for performance guarantees while still retaining the familiarity this metric brings to the industry and the value of its use in predicting actual annual system yield. A testing protocol is also presented to illustrate the use of this new metric with the intent of providing a reference starting point for contractual content.

  12. Utilizing Isotopic Uranium Ratios in Groundwater Evaluations at NFSS

    SciTech Connect

    Rhodes, M.C.; Keil, K.G.; Frederick, W.T.; Papura, T.R.; Leithner, J.S.; Peterson, J.M.; MacDonell, M.M.

    2006-07-01

    The U.S. Army Corps of Engineers (USACE) Buffalo District is currently evaluating environmental contamination at the Niagara Falls Storage Site (NFSS) under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) as part of its Formerly Utilized Sites Remedial Action Program (FUSRAP). The NFSS is located in the Town of Lewiston in western New York and has been used to store uranium-contaminated materials since 1944. Most of the radioactive materials are currently contained in an on-site structure, but past contamination remains in soil and groundwater. As a naturally occurring radionuclide, uranium is present in all groundwater. Because contamination levels at the site are quite low, it can be difficult to distinguish zones that have been impacted by the past releases from those at the high end of the natural background range. The differences in the isotopic ratio of uranium-234 (U-234) to uranium-238 (U-238) between natural groundwater systems and affected areas are being used in an innovative way to better define the nature and extent of groundwater contamination at NFSS. In natural groundwater, the ratio of U-234 to U-238 exceeds 1 due to the alpha particle recoil effect, in which U-234 is preferentially mobilized to groundwater from adjacent rock or soil. This process is very slow, and it can be hundreds to thousands of years before a measurable impact is seen in the isotopic ratio. Thus, as a result of the recoil effect, the ratio of U-234 to U-238 will be higher in natural groundwater than in contaminated groundwater. This means that if site releases were the source of the uranium being measured in groundwater at NFSS, the ratio of U-234 to U-238 would be expected to be very close to 1 (the same ratio that exists in wastes and soil at the site), because not enough time has elapsed for the alpha particle recoil effect to have significantly altered that ratio. From an evaluation of site and regional groundwater data, an isotopic ratio

  13. Natural Gas

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage ...

  14. Air-Source Integrated Heat Pump | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    separate systems (seasonal energy efficiency ratio SEER 13 ASHP + electric storage WH). ... test completion is expected by August 2016 and a final CRADA report draft submission ...

  15. Building America Case Study: Exterior Insulation Pre- and Post...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    as a part of overall deep energy retrofts (DERs) on ... America program is engineering the American home for ... ratio (SEER) 8, or none * Water heater typefuel: Gas ...

  16. Eccentric crank variable compression ratio mechanism

    DOEpatents

    Lawrence, Keith Edward; Moser, William Elliott; Roozenboom, Stephan Donald; Knox, Kevin Jay

    2008-05-13

    A variable compression ratio mechanism for an internal combustion engine that has an engine block and a crankshaft is disclosed. The variable compression ratio mechanism has a plurality of eccentric disks configured to support the crankshaft. Each of the plurality of eccentric disks has at least one cylindrical portion annularly surrounded by the engine block. The variable compression ratio mechanism also has at least one actuator configured to rotate the plurality of eccentric disks.

  17. Nuclear Target Ratios data release page

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Nuclear Target Ratios data release page "Measurement of ratios of muon neutrino charged-current cross sections on C, Fe, and Pb to CH at neutrino energies 2-20 GeV" Phys. Rev. Lett. 112 (2014) 231801, hep-ex/1403.2103. Data Anciliary files for this result can be found at http://arxiv.org/src/1403.2103v4/anc Anciliary Files include: Cross section ratios as a function of Bjorken x Cross Section ratio as a function of neutrino energy Target Masses used in the experiment Neutrino Flux used

  18. Tower Water-Vapor Mixing Ratio

    SciTech Connect

    Guastad, Krista; Riihimaki, Laura; none,

    2013-04-01

    The purpose of the Tower Water-Vapor Mixing Ratio (TWRMR) value-added product (VAP) is to calculate water-vapor mixing ratio at the 25-meter and 60-meter levels of the meteorological tower at the Southern Great Plains (SGP) Central Facility.

  19. Single Particle Database of Natural Ice Crystals: Dimensions

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Particle Database of Natural Ice Crystals: Dimensions and Aspect Ratios For original submission and image(s), see ARM Research Highlights http:www.arm.govsciencehighlights...

  20. Effect of Compression Ratio and Piston Geometry on RCCI load...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Compression Ratio and Piston Geometry on RCCI load limit Effect of Compression Ratio and Piston Geometry on RCCI load limit Explores the effect of compression ratio and piston ...

  1. The charge ratio of the atmospheric muons at low energy

    SciTech Connect

    Bahmanabadi, M.; Samimi, J.; Sheidaei, F.; Ghomi, M. Khakian

    2006-10-15

    From the nature of the muon production processes, it can be seen that the ratio of positive to negative cosmic muons has important information in both 'the atmospheric neutrino problem', and 'the hadronic interactions'. We have carried out an experiment for the measurement of the muon charge ratio in the cosmic ray flux in momentum range 0.112-0.178 GeV/c. The muon charge ratio is found to be 1.21{+-}0.01 with a mean zenith angle of 32 deg. {+-}5 deg. . From the measurements it has been obtained a zenithal angle distribution of muons as I({theta})=I(0)cos{sup n}{theta} with n=1.95{+-}0.13. An asymmetry has been observed in East-West directions because of the geomagnetic field. Meanwhile, in about the same momentum range, positive and negative muons have been studied on the basis of Monte Carlo simulations of the extensive air shower developement (Cosmic Ray Simulations for Kascade), using the Quark Gluon String model with JETs model as generator.

  2. On virial analysis at low aspect ratio

    DOE PAGES [OSTI]

    Bongard, Michael W.; Barr, Jayson L.; Fonck, Raymond J.; Reusch, Joshua A.; Thome, Kathreen E.

    2016-07-28

    The validity of virial analysis to infer global MHD equilibrium poloidal beta βp and internal inductance ℓi from external magnetics measurements is examined for low aspect ratio configurations with A < 2. Numerical equilibrium studies at varied aspect ratio are utilized to validate the technique at finite aspect ratio. The effect of applying high-A approximations to low-A experimental data is quantified and demonstrates significant over-estimation of stored energy (factors of 2–10) in spherical tokamak geometry. Experimental approximations to equilibrium-dependent volume integral terms in the analysis are evaluated at low-A. Highly paramagnetic configurations are found to be inadequately represented through themore » virial mean radius parameter RT. Alternate formulations for inferring βp and ℓi that are independent of RT to avoid this difficulty are presented for the static isotropic limit. Lastly, these formulations are suitable for fast estimation of tokamak stored energy components at low aspect ratio using virial analysis.« less

  3. Electrospinning of PVC with natural rubber

    SciTech Connect

    Othman, Muhammad Hariz; Abdullah, Ibrahim; Mohamed, Mahathir

    2013-11-27

    Polyvinyl chloride (PVC) was mixed with natural rubbers which are liquid natural rubber (LNR), liquid epoxidised natural rubber (LENR) and liquid epoxidised natural rubber acrylate (LENRA) for a preparation of a fine non-woven fiber’s mat. PVC and each natural rubbers(PVC:LENR, PVC:LNR and PVC:LENRA) were mixed based on ratio of 70:30. Electrospinning method was used to prepare the fiber. The results show that the spinnable concentration of PVC/ natural rubber/THF solution is 16 wt%. The morphology, diameter, structure and degradation temperature of electrospun fibers were investigated by scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). SEM photos showed that the morphology and diameter of the fibers were mainly affected by the addition of natural rubber. TGA results suggested that PVC electrospun fiber has higher degradation temperature than those electrospun fibers that contain natural rubber.

  4. Method for nanomachining high aspect ratio structures

    DOEpatents

    Yun, Wenbing; Spence, John; Padmore, Howard A.; MacDowell, Alastair A.; Howells, Malcolm R.

    2004-11-09

    A nanomachining method for producing high-aspect ratio precise nanostructures. The method begins by irradiating a wafer with an energetic charged-particle beam. Next, a layer of patterning material is deposited on one side of the wafer and a layer of etch stop or metal plating base is coated on the other side of the wafer. A desired pattern is generated in the patterning material on the top surface of the irradiated wafer using conventional electron-beam lithography techniques. Lastly, the wafer is placed in an appropriate chemical solution that produces a directional etch of the wafer only in the area from which the resist has been removed by the patterning process. The high mechanical strength of the wafer materials compared to the organic resists used in conventional lithography techniques with allows the transfer of the precise patterns into structures with aspect ratios much larger than those previously achievable.

  5. A Probabilistic Approach to Site-Specific, Hazard-Consistent Vertical-to-Horizontal Spectral Ratio Model

    Energy.gov [DOE]

    A Probabilistic Approach to Site-Specific, Hazard-Consistent Vertical-to-Horizontal Spectral Ratio Model Rizzo Associates Presented at U.S. DOE Natural Phenomena Hazards Meeting October 21, 2014

  6. ,"Natural Gas Consumption",,,"Natural Gas Expenditures"

    Energy Information Administration (EIA) (indexed site)

    Census Division, 1999" ,"Natural Gas Consumption",,,"Natural Gas Expenditures" ,"per Building (thousand cubic feet)","per Square Foot (cubic feet)","per Worker (thousand cubic...

  7. Natural Gas Weekly Update

    Annual Energy Outlook

    natural gas demand, thereby contributing to larger net injections of natural gas into storage. Other Market Trends: EIA Releases The Natural Gas Annual 2006: The Energy...

  8. Energy Balance Bowen Ratio (EBBR) Handbook

    SciTech Connect

    Cook, D. R.

    2016-01-01

    The Energy Balance Bowen Ratio (EBBR) system produces 30-minute estimates of the vertical fluxes of sensible and latent heat at the local surface. Flux estimates are calculated from observations of net radiation, soil surface heat flux, and the vertical gradients of temperature and relative humidity (RH). Meteorological data collected by the EBBR are used to calculate bulk aerodynamic fluxes, which are used in the Bulk Aerodynamic Technique (BA) EBBR value-added product (VAP) to replace sunrise and sunset spikes in the flux data. A unique aspect of the system is the automatic exchange mechanism (AEM), which helps to reduce errors from instrument offset drift.

  9. Energy Balance Bowen Ratio Station (EBBR) Handbook

    SciTech Connect

    Cook, DR

    2011-02-23

    The energy balance Bowen ratio (EBBR) system produces 30-minute estimates of the vertical fluxes of sensible and latent heat at the local surface. Flux estimates are calculated from observations of net radiation, soil surface heat flux, and the vertical gradients of temperature and relative humidity (RH). Meteorological data collected by the EBBR are used to calculate bulk aerodynamic fluxes, which are used in the Bulk Aerodynamic Technique (BA) EBBR value-added product (VAP) to replace sunrise and sunset spikes in the flux data. A unique aspect of the system is the automatic exchange mechanism (AEM), which helps to reduce errors from instrument offset drift.

  10. High aspect ratio, remote controlled pumping assembly

    DOEpatents

    Brown, S.B.; Milanovich, F.P.

    1995-11-14

    A miniature dual syringe-type pump assembly is described which has a high aspect ratio and which is remotely controlled, for use such as in a small diameter penetrometer cone or well packer used in water contamination applications. The pump assembly may be used to supply and remove a reagent to a water contamination sensor, for example, and includes a motor, gearhead and motor encoder assembly for turning a drive screw for an actuator which provides pushing on one syringe and pulling on the other syringe for injecting new reagent and withdrawing used reagent from an associated sensor. 4 figs.

  11. High aspect ratio, remote controlled pumping assembly

    DOEpatents

    Brown, Steve B.; Milanovich, Fred P.

    1995-01-01

    A miniature dual syringe-type pump assembly which has a high aspect ratio and which is remotely controlled, for use such as in a small diameter penetrometer cone or well packer used in water contamination applications. The pump assembly may be used to supply and remove a reagent to a water contamination sensor, for example, and includes a motor, gearhead and motor encoder assembly for turning a drive screw for an actuator which provides pushing on one syringe and pulling on the other syringe for injecting new reagent and withdrawing used reagent from an associated sensor.

  12. CO (Carbon Monoxide Mixing Ratio System) Handbook

    SciTech Connect

    Biraud, S

    2011-02-23

    The main function of the CO instrument is to provide continuous accurate measurements of carbon monoxide mixing ratio at the ARM SGP Central Facility (CF) 60-meter tower (36.607 °N, 97.489 °W, 314 meters above sea level). The essential feature of the control and data acquisition system is to record signals from a Thermo Electron 48C and periodically calibrate out zero and span drifts in the instrument using the combination of a CO scrubber and two concentrations of span gas (100 and 300 ppb CO in air). The system was deployed on May 25, 2005.

  13. Dry Natural Gas

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Estimated natural gas plant liquids and dry natural gas content of total natural gas proved reserves, 2014 million barrels and billion cubic feet 2014 Dry Natural Gas billion cubic ...

  14. Flexible Conversion Ratio Fast Reactor Systems Evaluation

    SciTech Connect

    Neil Todreas; Pavel Hejzlar

    2008-06-30

    Conceptual designs of lead-cooled and liquid salt-cooled fast flexible conversion ratio reactors were developed. Both concepts have cores reated at 2400 MWt placed in a large-pool-type vessel with dual-free level, which also contains four intermediate heat exchanges coupling a primary coolant to a compact and efficient supercritical CO2 Brayton cycle power conversion system. Decay heat is removed passively using an enhanced Reactor Vessel Auxiliary Cooling System and a Passive Secondary Auxiliary Cooling System. The most important findings were that (1) it is feasible to design the lead-cooled and salt-cooled reactor with the flexible conversion ratio (CR) in the range of CR=0 and CR=1 n a manner that achieves inherent reactor shutdown in unprotected accidents, (2) the salt-cooled reactor requires Lithium thermal Expansion Modules to overcme the inherent salt coolant's large positive coolant temperature reactivity coefficient, (3) the preferable salt for fast spectrum high power density cores is NaCl-Kcl-MgCl2 as opposed to fluoride salts due to its better themal-hydraulic and neutronic characteristics, and (4) both reactor, but attain power density 3 times smaller than that of the sodium-cooled reactor.

  15. Hydraulic system for a ratio change transmission

    DOEpatents

    Kalns, Ilmars

    1981-01-01

    Disclosed is a drive assembly (10) for an electrically powered vehicle (12). The assembly includes a transaxle (16) having a two-speed transmission (40) and a drive axle differential (46) disposed in a unitary housing assembly (38), an oil-cooled prime mover or electric motor (14) for driving the transmission input shaft (42), an adapter assembly (24) for supporting the prime mover on the transaxle housing assembly, and a hydraulic system (172) providing pressurized oil flow for cooling and lubricating the electric motor and transaxle and for operating a clutch (84) and a brake (86) in the transmission to shift between the two-speed ratios of the transmission. The adapter assembly allows the prime mover to be supported in several positions on the transaxle housing. The brake is spring-applied and locks the transmission in its low-speed ratio should the hydraulic system fail. The hydraulic system pump is driven by an electric motor (212) independent of the prime mover and transaxle.

  16. Natural Gas Basics

    SciTech Connect

    NREL Clean Cities

    2010-04-01

    Fact sheet answers questions about natural gas production and use in transportation. Natural gas vehicles are also described.

  17. HCCI in a Variable Compression Ratio Engine: Effects of Engine...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    in a Variable Compression Ratio Engine: Effects of Engine Variables HCCI in a Variable Compression Ratio Engine: Effects of Engine Variables 2004 Diesel Engine Emissions Reduction ...

  18. CO (Carbon Monoxide Mixing Ratio System) Handbook (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: CO (Carbon Monoxide Mixing Ratio System) Handbook Citation Details In-Document Search Title: CO (Carbon Monoxide Mixing Ratio System) Handbook The main function of ...

  19. Electronic branching ratio of the. tau. lepton

    SciTech Connect

    Ammar, R.; Baringer, P.; Coppage, D.; Davis, R.; Kelly, M.; Kwak, N.; Lam, H.; Ro, S.; Kubota, Y.; Lattery, M.; Nelson, J.K.; Perticone, D.; Poling, R.; Schrenk, S.; Wang, R.; Alam, M.S.; Kim, I.J.; Nemati, B.; Romero, V.; Sun, C.R.; Wang, P.; Zoeller, M.M.; Crawford, G.; Fulton, R.; Gan, K.K.; Kagan, H.; Kass, R.; Lee, J.; Malchow, R.; Morrow, F.; Sung, M.K.; Whitmore, J.; Wilson, P.; Butler, F.; Fu, X.; Kalbfleisch, G.; Lambrecht, M.; Skubic, P.; Snow, J.; Wang, P.; Bortoletto, D.; Brown, D.N.; Dominick, J.; McIlwain, R.L.; Miller, D.H.; Modesitt, M.; Shibata, E.I.; Schaffner, S.F.; Shipsey, I.P.J.; Battle, M.; Ernst, J.; Kroha, H.; Roberts, S.; Sparks, K.; Thorndike, E.H.; Wang, C.; Stroynowski, R.; Artuso, M.; Goldberg, M.; Haupt, T.; Horwitz, N.; Kennett, R.; Moneti, G.C.; Playfer, S.; Rozen, Y.; Rubin, P.; Skwarnicki, T.; Stone, S.; Thulasidas, M.; Yao, W.; Zhu, G.; Barnes, A.V.; Bartelt, J.; Csorna, S.E.; Jain, V.; Letson, T.; Mestayer, M.D.; Akerib, D.S.; Barish, B.; Chadha, M.

    1992-06-01

    Using data accumulated by the CLEO I detector operating at the Cornell Electron Storage Ring, we have measured the ratio {ital R}={Gamma}({tau}{r arrow}{ital e}{bar {nu}}{sub {ital e}}{nu}{sub {tau}})/{Gamma}{sub 1}, where {Gamma}{sub 1} is the {tau} decay rate to final states with one charged particle. We find {ital R}=0.2231{plus minus}0.0044{plus minus}0.0073 where the first error is statistical and the second is systematic. Together with the measured topological one-charged-particle branching fraction, this yields the branching fraction of the {tau} lepton to electrons, {ital B}{sub {ital e}}=0.192{plus minus}0.004{plus minus}0.006.

  20. Anomalous pressure dependence of thermal conductivities of large mass ratio compounds

    SciTech Connect

    Lindsay, Lucas R; Broido, David; Carrete, Jesus; Mingo, Natalio; Reinecke, Tom

    2015-01-01

    The lattice thermal conductivities ( ) of binary compound materials are examined as a function of hydrostatic pressure, P, using a first-principles approach. Compound materials with relatively small mass ratios, such as MgO, show an increase in with P, consistent with measurements. Conversely, compounds with large mass ratios (e.g., BSb, BAs, BeTe, BeSe) exhibit decreasing with increasing P, a behavior that cannot be understood using simple theories of . This anomalous P dependence of arises from the fundamentally different nature of the intrinsic scattering processes for heat-carrying acoustic phonons in large mass ratio compounds compared to those with small mass ratios. This work demonstrates the power of first principles methods for thermal properties and advances the understanding of thermal transport in non-metals.

  1. Anomalous pressure dependence of thermal conductivities of large mass ratio compounds

    DOE PAGES [OSTI]

    Lindsay, Lucas R; Broido, David; Carrete, Jesus; Mingo, Natalio; Reinecke, Tom

    2015-01-01

    The lattice thermal conductivities ( ) of binary compound materials are examined as a function of hydrostatic pressure, P, using a first-principles approach. Compound materials with relatively small mass ratios, such as MgO, show an increase in with P, consistent with measurements. Conversely, compounds with large mass ratios (e.g., BSb, BAs, BeTe, BeSe) exhibit decreasing with increasing P, a behavior that cannot be understood using simple theories of . This anomalous P dependence of arises from the fundamentally different nature of the intrinsic scattering processes for heat-carrying acoustic phonons in large mass ratio compounds compared to those with small massmore » ratios. This work demonstrates the power of first principles methods for thermal properties and advances the understanding of thermal transport in non-metals.« less

  2. Natural Gas Modernization Clearinghouse

    Office of Energy Efficiency and Renewable Energy (EERE)

    This Natural Gas Modernization Clearinghouse provides information about the implications of natural gas infrastructure modernization, including strategies and technologies that increase public safety, improve environmental performance and enhance natural gas deliverability.

  3. Numerical Estimation of the Spent Fuel Ratio

    SciTech Connect

    Lindgren, Eric R.; Durbin, Samuel; Wilke, Jason; Margraf, J.; Dunn, T. A.

    2016-01-01

    Sabotage of spent nuclear fuel casks remains a concern nearly forty years after attacks against shipment casks were first analyzed and has a renewed relevance in the post-9/11 environment. A limited number of full-scale tests and supporting efforts using surrogate materials, typically depleted uranium dioxide (DUO 2 ), have been conducted in the interim to more definitively determine the source term from these postulated events. However, the validity of these large- scale results remain in question due to the lack of a defensible spent fuel ratio (SFR), defined as the amount of respirable aerosol generated by an attack on a mass of spent fuel compared to that of an otherwise identical surrogate. Previous attempts to define the SFR in the 1980's have resulted in estimates ranging from 0.42 to 12 and include suboptimal experimental techniques and data comparisons. Because of the large uncertainty surrounding the SFR, estimates of releases from security-related events may be unnecessarily conservative. Credible arguments exist that the SFR does not exceed a value of unity. A defensible determination of the SFR in this lower range would greatly reduce the calculated risk associated with the transport and storage of spent nuclear fuel in dry cask systems. In the present work, the shock physics codes CTH and ALE3D were used to simulate spent nuclear fuel (SNF) and DUO 2 targets impacted by a high-velocity jet at an ambient temperature condition. These preliminary results are used to illustrate an approach to estimate the respirable release fraction for each type of material and ultimately, an estimate of the SFR. This page intentionally blank

  4. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    of natural gas vehicles. The Department of Energys Office of Energy Efficiency and Renewable Energy reports that there were 841 compressed natural gas (CNG) fuel stations and 41...

  5. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Release: Thursday, April 28, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, April 20, 2011) Natural...

  6. Natural Gas Weekly Update

    Annual Energy Outlook

    Release: Thursday, August 26, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, August 18, 2010) Natural...

  7. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2008 Next Release: November 6, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the week ending Wednesday, October 29) Natural gas...

  8. Natural Gas Weekly Update

    Annual Energy Outlook

    9, 2008 Next Release: June 26, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview Since Wednesday, June 11, natural gas spot prices...

  9. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Weekly Underground Natural Gas Storage Report. The sample change occurred over a transition period that began with the release of the Weekly Natural Gas Storage Report (WNGSR)...

  10. Historical Natural Gas Annual

    Annual Energy Outlook

    6 The Historical Natural Gas Annual contains historical information on supply and disposition of natural gas at the national, regional, and State level as well as prices at...

  11. Historical Natural Gas Annual

    Energy Information Administration (EIA) (indexed site)

    7 The Historical Natural Gas Annual contains historical information on supply and disposition of natural gas at the national, regional, and State level as well as prices at...

  12. Historical Natural Gas Annual

    Gasoline and Diesel Fuel Update

    8 The Historical Natural Gas Annual contains historical information on supply and disposition of natural gas at the national, regional, and State level as well as prices at...

  13. Natural Gas Weekly Update

    Annual Energy Outlook

    wide array of affiliates in all sectors of the energy market. Along with the changing nature of the energy affiliates, the changing nature of the transmission providers themselves...

  14. Natural Gas Weekly Update

    Annual Energy Outlook

    5, 2009 Next Release: July 2, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, June 24, 2009) Natural gas...

  15. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Next Release: Thursday, May 19, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, May 11, 2011) Natural...

  16. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    6, 2009 Next Release: August 13, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, August 5, 2009) Natural...

  17. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    , 2008 Next Release: July 10, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview Since Wednesday, June 25, natural gas spot prices...

  18. Natural Gas Applications

    Annual Energy Outlook

    Gas Applications. If you need assistance viewing this page, please call (202) 586-8800. Energy Information Administration Home Page Home > Natural Gas > Natural Gas Applications...

  19. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Sources & Uses Petroleum & Other Liquids Crude oil, gasoline, heating oil, diesel, propane, and other liquids including biofuels and natural gas liquids. Natural Gas...

  20. Natural Gas Weekly Update

    Annual Energy Outlook

    cooling demand for natural gas. Meanwhile, it became increasingly clear that Hurricane Frances likely would not pose a significant threat to natural gas production in the Gulf of...

  1. Poisson's ratio and porosity at Coso geothermal area, California...

    OpenEI (Open Energy Information) [EERE & EIA]

    of the model, are estimated by a jackknife method. We use perturbations of r V p V s ratio and Psi V p .V s product to derive distributions of Poisson's ratio, sigma , and...

  2. Check Burner Air to Fuel Ratios | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Burner Air to Fuel Ratios Check Burner Air to Fuel Ratios This tip sheet discusses when to check and reset burner air to fuel ratios as well as why it's a simply way to maximize the efficiency of process heating equipment. PROCESS HEATING TIP SHEET #2 Check Burner Air to Fuel Ratios (November 2007) (260.29 KB) More Documents & Publications Waste Heat Reduction and Recovery for Improving Furnace Efficiency, Productivity and Emissions Performance: A BestPractices Process Heating Technical

  3. EIA - Natural Gas Pipeline Network - Intrastate Natural Gas Pipeline...

    Gasoline and Diesel Fuel Update

    Intrastate Natural Gas Pipeline Segment About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Intrastate Natural Gas ...

  4. EIA - Natural Gas Pipeline Network - Major Natural Gas Transportation...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Major Natural Gas Transportation Corridors About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Major Natural Gas ...

  5. EIA - Natural Gas Pipeline Network - Natural Gas Transmission...

    Gasoline and Diesel Fuel Update

    Transmission Path Diagram About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Natural Gas Transmission Path Natural ...

  6. Savine Pass, LA Natural Gas Liquefied Natural Gas Imports from...

    Gasoline and Diesel Fuel Update

    Savine Pass, LA Natural Gas Liquefied Natural Gas Imports from Trinidad and Tobago (Million Cubic Feet) Savine Pass, LA Natural Gas Liquefied Natural Gas Imports from Trinidad and ...

  7. Asian natural gas

    SciTech Connect

    Klass, D.L. ); Ohashi, T. )

    1989-01-01

    This book presents an overview of the present status and future development in Asia of domestic and export markets for natural gas and to describes gas utilization technologies that will help these markets grow. A perspective of natural gas transmission, transport, distribution, and utilization is presented. The papers in this book are organized under several topics. The topics are : Asian natural gas markets, Technology of natural gas export projects, Technology of domestic natural gas projects, and Natural gas utilization in power generation, air conditioning, and other applications.

  8. Maintaining low exhaust emissions with turbocharged gas engines using a feedback air-fuel ratio control system

    SciTech Connect

    Eckard, D.W.; Serve, J.V.

    1987-10-01

    Maintaining low exhaust emissions on a turbocharged, natural gas engine through the speed and load range requires precise control of the air-fuel ratio. Changes in ambient conditions or fuel heating value will cause the air-fuel ratio to change substantially. By combining air-gas pressure with preturbine temperature control, the air-fuel ratio can be maintained regardless of changes in the ambient conditions or the fuel's heating value. Design conditions and operating results are presented for an air-fuel controller for a turbocharged engine.

  9. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    The report provides an overview of U.S. international trade in 2008 as well as historical data on natural gas imports and exports. Net natural gas imports accounted for only 13...

  10. ,"Mississippi Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...S3","N3010MS3","N3020MS3","N3035MS3","NA1570SMS3","N3045MS3" "Date","Mississippi Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Mississippi Natural Gas Imports ...

  11. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    heating-related demand for natural gas that limited the size of the net addition to storage. The economic incentives for storing natural gas for next winter are considerably...

  12. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    next heating season. Net injections reported in today's release of EIA's Weekly Natural Gas Storage Report brought natural gas storage supplies to 2,163 Bcf as of Friday, June 1,...

  13. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    of natural gas into storage. However, shut-in natural gas production in the Gulf of Mexico reduced available current supplies, and so limited net injections during the report...

  14. Natural Gas Weekly Update

    Annual Energy Outlook

    a high degree of price volatility seems inherent in natural gas markets because of the nature of the commodity. However, the annual volatility during 1994 and 2006 does not exhibit...

  15. ,"Texas Natural Gas Prices"

    Energy Information Administration (EIA) (indexed site)

    Data for" ,"Data 1","Texas Natural Gas Prices",8,"Monthly","2... 6:46:23 AM" "Back to Contents","Data 1: Texas Natural Gas Prices" "Sourcekey","N3050TX3"...

  16. Natural gas annual 1996

    SciTech Connect

    1997-09-01

    This document provides information on the supply and disposition of natural gas to a wide audience. The 1996 data are presented in a sequence that follows natural gas from it`s production to it`s end use.

  17. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    York Mercantile Exchange (NYMEX), the August 2011 natural gas contract price also lost ground over the week, closing at 4.217 per MMBtu on Wednesday. The natural gas rotary rig...

  18. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    York Mercantile Exchange (NYMEX), the August 2011 natural gas contract price also lost ground over the week, closing at 4.315 per MMBtu on Wednesday. The natural gas rotary rig...

  19. EIA - Natural Gas Publications

    Annual Energy Outlook

    these data from 2005 to 2009 are presented for each State. (12282010) U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Proved Reserves: 2009 National and State...

  20. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    . Home | Petroleum | Gasoline | Diesel | Propane | Natural Gas | Electricity | Coal | Nuclear Renewables | Alternative Fuels | Prices | States | International | Country Analysis...

  1. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

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

  2. Natural gas annual 1995

    SciTech Connect

    1996-11-01

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1995 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1991 to 1995 for each Census Division and each State. Annual historical data are shown at the national level.

  3. Natural gas annual 1994

    SciTech Connect

    1995-11-17

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1994 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1990 to 1994 for each Census Division and each State. Annual historical data are shown at the national level.

  4. NETL: Natural Gas Resources

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Natural Gas Resources Useful for heating, manufacturing, and as chemical feedstock, natural gas has the added benefit of producing fewer greenhouse gas emissions than other fossil fuels used in power production.The United States is endowed with an abundance of natural gas resources, so increasing use of natural gas power can help strengthen domestic energy security. NETL research efforts enhance technologies that reduce the cost, increase the efficiency, and reduce the environmental risk of

  5. Application of the Isotope Ratio Method to a Boiling Water Reactor

    SciTech Connect

    Frank, Douglas P.; Gerlach, David C.; Gesh, Christopher J.; Hurley, David E.; Meriwether, George H.; Mitchell, Mark R.; Reid, Bruce D.

    2010-08-11

    The isotope ratio method is a technique for estimating the energy or plutonium production in a fission reactor by measuring isotope ratios in non-fuel reactor components. The isotope ratios in these components can then be directly related to the cumulative energy production with standard reactor modeling methods. All reactor materials contain trace elemental impurities at parts per million levels, and the isotopes of these elements are transmuted by neutron irradiation in a predictable manner. While measuring the change in a particular isotopes concentration is possible, it is difficult to correlate to energy production because the initial concentration of that element may not be accurately known. However, if the ratio of two isotopes of the same element can be measured, the energy production can then be determined without knowing the absolute concentration of that impurity since the initial natural ratio is known. This is the fundamental principle underlying the isotope ratio method. Extremely sensitive mass-spectrometric methods are currently available that allow accurate measurements of the impurity isotope ratios in samples. Additionally, indicator elements with stable activation products have been identified so that their post-irradiation isotope ratios remain constant. This method has been successfully demonstrated on graphite-moderated reactors. Graphite reactors are particularly well-suited to such analyses since the graphite moderator is resident in the fueled region of the core for the entire period of operation. Applying this method to other reactor types is more difficult since the resident portions of the reactor available for sampling are either outside the fueled region of the core or structural components of individual fuel assemblies. The goal of this research is to show that the isotope ratio method can produce meaningful results for light water-moderated power reactors. In this work, we use the isotope ratio method to estimate the energy

  6. 13-Energy Efficiency Ratio Window Air Conditioner | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    -Energy Efficiency Ratio Window Air Conditioner 13-Energy Efficiency Ratio Window Air Conditioner Credit: Oak Ridge National Lab Credit: Oak Ridge National Lab Lead Performer: Oak Ridge National Laboratory - Oak Ridge, TN Partners: General Electric - Fairfield, CT DOE Funding: $1,540,000 Cost Share: Provided by CRADA partners Project Term: October 1, 2011 - September 30, 2015 Project Objective This project is designing and developing a high-efficiency 13 energy-efficiecy-ratio (EER) window air

  7. GUM Analysis for TIMS and SIMS Isotopic Ratios in Graphite

    SciTech Connect

    Heasler, Patrick G.; Gerlach, David C.; Cliff, John B.; Petersen, Steven L.

    2007-04-01

    This report describes GUM calculations for TIMS and SIMS isotopic ratio measurements of reactor graphite samples. These isotopic ratios are used to estimate reactor burn-up, and currently consist of various ratios of U, Pu, and Boron impurities in the graphite samples. The GUM calculation is a propagation of error methodology that assigns uncertainties (in the form of standard error and confidence bound) to the final estimates.

  8. The Effects of Fuel Composition and Compression Ratio on Thermal...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The Effects of Fuel Composition and Compression Ratio on Thermal Efficiency in an HCCI Engine Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research ...

  9. Characterization of Tritium Breeding Ratio and Energy Multiplication...

    Office of Scientific and Technical Information (OSTI)

    Factor of Lithium-based Ternary Alloys in IFE Blankets Citation Details In-Document Search Title: Characterization of Tritium Breeding Ratio and Energy Multiplication Factor of ...

  10. Oxygen And Carbon Isotope Ratios Of Hydrothermal Minerals From...

    OpenEI (Open Energy Information) [EERE & EIA]

    Oxygen And Carbon Isotope Ratios Of Hydrothermal Minerals From Yellowstone Drill Cores Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Oxygen...

  11. Autocorrelation Function Statistics and Implication to Decay Ratio Estimation

    SciTech Connect

    March-Leuba, Jose A.

    2016-01-01

    This document summarizes the results of a series of computer simulations to attempt to identify the statistics of the autocorrelation function, and implications for decay ratio estimation.

  12. High Aspect Ratio Metallic Structures for Use as Transparent...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Solar Photovoltaic Solar Photovoltaic Find More Like This Return to Search High Aspect Ratio Metallic Structures for Use as Transparent Electrodes Ames Laboratory Contact AMES ...

  13. Sex ratios in fetuses and liveborn infants with autosomal aneuploidy

    SciTech Connect

    Heuther, C.A.; Martin, R.L.M.; Stoppelman, S.M. [Univ. of Cincinnati, OH (United States)] [and others

    1996-06-14

    Ten data sources were used substantially to increase the available data for estimating fetal and livebirth sex ratios for Patau (trisomy 13), Edwards (trisomy 18), and Down (trisomy 21) syndromes and controls. The fetal sex ratio estimate was 0.88 (N = 584) for trisomy 13, 0.90 (N = 1702) for trisomy 18, and 1.16 (N = 3154) for trisomy 21. All were significantly different from prenatal controls (1.07). The estimated ratios in prenatal controls were 1.28 (N = 1409) for CVSs and 1.06 (N = 49427) for amniocenteses, indicating a clear differential selection against males, mostly during the first half of fetal development. By contrast, there were no sex ratio differences for any of the trisomies when comparing gestational ages <16 and >16 weeks. The livebirth sex ratio estimate was 0.90 (N = 293) for trisomy 13, 0.63 (N = 497) for trisomy 18, and 1.15 (N = 6424) for trisomy 21, the latter two being statistically different than controls (1.05) (N = 3660707). These ratios for trisomies 13 and 18 were also statistically different than the ratio for trisomy 21. Only in trisomy 18 did the sex ratios in fetuses and livebirths differ, indicating a prenatal selection against males >16 weeks. No effects of maternal age or race were found on these estimates for any of the fetal or livebirth trisomies. Sex ratios for translocations and mosaics were also estimated for these aneuploids. Compared to previous estimates, these results are less extreme, most likely because of larger sample sizes and less sample bias. They support the hypothesis that these trisomy sex ratios are skewed at conception, or become so during embryonic development through differential intrauterine selection. The estimate for Down syndrome livebirths is also consistent with the hypothesis that its higher sex ratio is associated with paternal nondisjunction. 36 refs., 5 tabs.

  14. EIA - Natural Gas Pipeline Network - Natural Gas Transportation...

    Gasoline and Diesel Fuel Update

    Corridors > Major U.S. Natural Gas Transportation Corridors Map About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates ...

  15. EIA - Natural Gas Pipeline Network - Natural Gas Pipeline Development...

    Energy Information Administration (EIA) (indexed site)

    Pipelinesk > Development & Expansion About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Natural Gas Pipeline ...

  16. EIA - Natural Gas Pipeline Network - Natural Gas Pipeline Compressor...

    Gasoline and Diesel Fuel Update

    Compressor Stations Illustration About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates U.S. Natural Gas Pipeline ...

  17. EIA - Natural Gas Pipeline Network - Underground Natural Gas...

    Energy Information Administration (EIA) (indexed site)

    Storage About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Underground Natural Gas Storage Overview | Regional ...

  18. EIA - Natural Gas Pipeline Network - Largest Natural Gas Pipeline...

    Gasoline and Diesel Fuel Update

    Interstate Pipelines Table About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Thirty Largest U.S. Interstate Natural ...

  19. EIA - Natural Gas Pipeline Network - Natural Gas Pipeline Mileage...

    Gasoline and Diesel Fuel Update

    Mileage by State About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Estimated Natural Gas Pipeline Mileage in the ...

  20. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Other Market Trends EIA Proposes Extending Oil and Natural Gas Reserves Survey Forms. The Energy Information Administration (EIA) on July 15 published a notice in the Federal...

  1. Natural Gas Weekly Update

    Annual Energy Outlook

    As of February 14, Northern Natural Gas implemented a system overrun limitation (SOL) affecting all market area zones. These zones are located in the northern part of the...

  2. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    15, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, January 7, 2009) Since Wednesday, December...

  3. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    June 12, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview Spot gas at most market locations (outside the Rocky Mountain Region) traded...

  4. Natural Gas Weekly Update

    Annual Energy Outlook

    March 12, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, March 4, 2009) A late winter cold spell in...

  5. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    and October 2010 contracts all fell by less than 1 cent. Wellhead Prices Annual Energy Review More Price Data Storage Working natural gas inventories set a new record,...

  6. Natural Gas Weekly Update

    Annual Energy Outlook

    recorded last year. Other Market Trends: FERC Releases Report on Underground Natural Gas Storage: The Federal Energy Regulatory Commission (FERC) issued a report last week that...

  7. Natural Gas Weekly Update

    Annual Energy Outlook

    Estimates Database. Other Market Trends: Comments Received on Proposed Weekly Natural Gas Storage Report Revision Policy: The Energy Information Administration (EIA) solicited...

  8. Natural Gas Weekly Update

    Annual Energy Outlook

    compared with its settlement price a week ago, ending yesterday at 5.974 per MMBtu. The Energy Information Administration (EIA) reported that natural gas inventories in...

  9. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    strong price contango during the report week, mitigated withdrawals of natural gas from storage. Other Market Trends: EIA Releases New Report on U.S. Greenhouse Gas Emissions:...

  10. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    storage facilities. Other Market Trends: EIA Releases Report on Underground Natural Gas Storage Developments: The Energy Information Administration (EIA) released a special...

  11. ,"Texas Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 5","Underground Storage",4,"Annual",2015,"06301967" ,"Data 6","Liquefied Natural Gas Storage",2,"Annual",2015,"06302012" ,"Data 7","Consumption",11,"Annual",2015,"06...

  12. ,"Maryland Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 4","Underground Storage",4,"Annual",2015,"06301967" ,"Data 5","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 6","Consumption",10,"Annual",2015,"06...

  13. ,"Delaware Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 2","Underground Storage",3,"Annual",1975,"06301967" ,"Data 3","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 4","Consumption",9,"Annual",2015,"0630...

  14. ,"California Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 5","Underground Storage",4,"Annual",2015,"06301967" ,"Data 6","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 7","Consumption",11,"Annual",2015,"06...

  15. ,"Nebraska Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 3","Underground Storage",4,"Annual",2015,"06301967" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 5","Consumption",11,"Annual",2015,"06...

  16. ,"Louisiana Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 5","Underground Storage",4,"Annual",2015,"06301967" ,"Data 6","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 7","Consumption",11,"Annual",2015,"06...

  17. ,"Nevada Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...1967" ,"Data 2","Production",12,"Annual",2015,"06301991" ,"Data 3","Liquefied Natural Gas Storage",3,"Annual",2015,"06301982" ,"Data 4","Consumption",10,"Annual",2015,"06...

  18. ,"Virginia Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 4","Underground Storage",4,"Annual",2015,"06301967" ,"Data 5","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 6","Consumption",10,"Annual",2015,"06...

  19. ,"Pennsylvania Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 4","Underground Storage",4,"Annual",2015,"06301967" ,"Data 5","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 6","Consumption",11,"Annual",2015,"06...

  20. ,"Minnesota Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 3","Underground Storage",4,"Annual",2015,"06301973" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 5","Consumption",8,"Annual",2015,"0630...

  1. ,"Tennessee Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 3","Underground Storage",4,"Annual",2015,"06301968" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 5","Consumption",11,"Annual",2015,"06...

  2. ,"Arkansas Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 4","Underground Storage",4,"Annual",2015,"06301967" ,"Data 5","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 6","Consumption",11,"Annual",2015,"06...

  3. ,"Wisconsin Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 2","Underground Storage",3,"Annual",1975,"06301973" ,"Data 3","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 4","Consumption",8,"Annual",2015,"0630...

  4. ,"Washington Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 3","Underground Storage",4,"Annual",2015,"06301967" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 5","Consumption",9,"Annual",2015,"0630...

  5. ,"Connecticut Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 2","Underground Storage",3,"Annual",1996,"06301973" ,"Data 3","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 4","Consumption",8,"Annual",2015,"0630...

  6. ,"Alabama Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 4","Underground Storage",4,"Annual",2015,"06301968" ,"Data 5","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 6","Consumption",11,"Annual",2015,"06...

  7. ,"Indiana Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 3","Underground Storage",4,"Annual",2015,"06301967" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 5","Consumption",10,"Annual",2015,"06...

  8. ,"Alaska Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 5","Underground Storage",6,"Annual",2015,"06301973" ,"Data 6","Liquefied Natural Gas Storage",3,"Annual",2015,"06301969" ,"Data 7","Consumption",11,"Annual",2015,"06...

  9. ,"Colorado Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 4","Underground Storage",4,"Annual",2015,"06301967" ,"Data 5","Liquefied Natural Gas Storage",2,"Annual",2015,"06301980" ,"Data 6","Consumption",11,"Annual",2015,"06...

  10. ,"Georgia Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 3","Underground Storage",3,"Annual",1975,"06301974" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 5","Consumption",8,"Annual",2015,"0630...

  11. ,"Missouri Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 3","Underground Storage",4,"Annual",2015,"06301967" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 5","Consumption",10,"Annual",2015,"06...

  12. ,"Oregon Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 3","Underground Storage",4,"Annual",2015,"06301973" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 5","Consumption",10,"Annual",2015,"06...

  13. ,"Idaho Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 3","Underground Storage",2,"Annual",1975,"06301974" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2015,"06301981" ,"Data 5","Consumption",9,"Annual",2015,"0630...

  14. ,"Massachusetts Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 3","Underground Storage",3,"Annual",1975,"06301967" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2015,"06301980" ,"Data 5","Consumption",8,"Annual",2015,"0630...

  15. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Upward pressure on prices at the NYMEX also appears related to concerns over events in Japan that could affect energy markets. Japan, the worlds largest liquefied natural gas...

  16. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Release: Thursday, January 7, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, December 16, 2009)...

  17. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    P.M. Next Release: November 5, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, October 28, 2009)...

  18. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Release: Thursday, March 4, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, February 24, 2010)...

  19. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Release: Thursday, January 6, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, December 15, 2010)...

  20. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    to the technology that drove Enron's North American wholesale electricity and natural gas trading unit. That technology, together with reportedly over 600 former Enron...

  1. Natural Gas Weekly Update

    Annual Energy Outlook

    , 2009 Next Release: April 9, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, April 1, 2009) Despite a...

  2. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    2009 Next Release: February 19, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, February 11, 2009)...

  3. Natural Gas Weekly Update

    Annual Energy Outlook

    Release: Thursday, November 4, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, October 27, 2010) As the...

  4. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2008 Next Release: November 20, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (Wednesday, November 5, to Thursday, November 13)...

  5. Natural Gas Weekly Update

    Annual Energy Outlook

    Release: Thursday, October 28, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, October 20, 2010)...

  6. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    January 3, 2008) Released: January 4, 2008 Next release: January 10, 2008 Natural gas spot and futures prices increased this report week (Wednesday to Thursday, December 26,...

  7. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Wednesday, November 10, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, November 3, 2010) Price...

  8. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Release: Thursday, August 19, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, August 11, 2010) Summer...

  9. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2008 Next Release: October 23, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For week ending Wednesday, October 15) Since Wednesday,...

  10. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Release: Thursday, February 3, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, January 26, 2011)...

  11. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    requested by Secretary of Energy Spencer Abraham in an effort to enhance natural gas market information and efficiency. Survey respondents would include all operators of...

  12. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Release: Thursday, December 16, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, December 8, 2010) In...

  13. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    prices using spot prices from producing areas, plus an allowance for interstate natural gas pipeline and local distribution company charges to transport the gas to market. Such a...

  14. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    the New York Mercantile Exchange (NYMEX), futures prices also increased this week in tandem with the crude oil prices. The natural gas futures contract for delivery in June...

  15. Natural Gas Weekly Update

    Annual Energy Outlook

    Release: Thursday, April 15, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, April 7, 2010) Since...

  16. Natural Gas Weekly Update

    Annual Energy Outlook

    Release: Thursday, February 25, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, February 17, 2010)...

  17. Natural Gas Weekly Update

    Annual Energy Outlook

    Release: Thursday, March 18, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, March 10, 2010) Since...

  18. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Release: Thursday, March 24, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, March 16, 2011) With...

  19. Natural Gas Weekly Update

    Annual Energy Outlook

    Inventory of Onshore Federal Lands' Oil and Gas Resources and the Extent and Nature of Restrictions or Impediments to Their Development. The report, which was...

  20. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Accounting Standards Board. The changes will allow FERC an understanding of the nature and extent to which hedging activities are used by electric utilities and gas...

  1. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    resources, but challenges occur in producing this resource because of the impermeable nature of the reservoir rocks, small reservoir compartment, abnormal pressures, difficulty in...

  2. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    storm activity has been above average this year, there has been little impact on natural gas markets. Tropical Depression 6 showed up in the eastern Caribbean early this...

  3. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    2008 Next Release: December 11, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the week ending Wednesday, December 3, 2008) Since...

  4. Natural Gas Weekly Update

    Annual Energy Outlook

    9, 2009 Next Release: March 26, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, March 18, 2009) Warmer...

  5. Natural Gas Weekly Update

    Annual Energy Outlook

    P.M. Next Release: October 29, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, October 21, 2009) Since...

  6. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    2008 Next Release: October 2, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (Wednesday, September 17, to Wednesday, September 24)...

  7. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Release: Thursday, January 20, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, January 12, 2011)...

  8. Natural Gas Weekly Update

    Annual Energy Outlook

    with hopes for the eventual return of winter was likely the catalyst enabling natural gas prices to recapture the 4 mark this week despite an environment of negative...

  9. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Thursday, September 16, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, September 8, 2010) Price...

  10. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Thursday, September 23, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, September 15, 2010)...

  11. Natural Gas Weekly Update

    Annual Energy Outlook

    Next Release: Thursday, May 12, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, May 4, 2011) Wholesale...

  12. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    data to EIA. The number of companies reporting increased by 3 from 2008, to include Alon USA, Chalmette Refining LLC, and Western Refining, Inc. Natural Gas Transportation Update...

  13. Natural Resources Specialist

    Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration, Corporate Services Office, Office of the Chief Operating Officer, Natural...

  14. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    P.M. Next Release: Thursday, July 1, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, June 23, 2010)...

  15. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Next Release: Thursday, September 9, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, September 1,...

  16. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    P.M. Next Release: Thursday, January 14, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, January 6,...

  17. Natural Gas Weekly Update

    Annual Energy Outlook

    Next Release: Thursday, November 19, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, November 11,...

  18. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    P.M. Next Release: Thursday, June 17, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, June 9, 2010)...

  19. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    P.M. Next Release: Thursday, August 12, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, August 4, 2010)...

  20. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Next Release: Thursday, September 2, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, August 25,...

  1. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    P.M. Next Release: Thursday, August 5, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, July 28, 2010)...

  2. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    P.M. Next Release: Thursday, May 13, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, May 5, 2010)...

  3. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    9, 2009 Next Release: April 16, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, April 8, 2009) Since...

  4. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    15, 2009 Next Release: January 23, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, January 14, 2009) In...

  5. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    16, 2009 Next Release: April 23, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, April 15, 2009) Since...

  6. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    5 to Wednesday, December 12) Released: December 13 Next release: December 20, 2007 Natural gas spot and futures prices increased this report week (Wednesday to Wednesday,...

  7. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Storage Estimates Database. Other Market Trends: EIA Releases New Report on the Fundamentals of Natural Gas Storage: EIA prepared a new report to provide general background...

  8. Natural Gas Weekly Update

    Annual Energy Outlook

    , 2009 Next Release: July 9, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, July 2, 2009) Since...

  9. Natural Gas Weekly Update

    Annual Energy Outlook

    6, 2008 Next Release: November 14, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the week ending Wednesday, November 5) Since...

  10. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    0, 2009 Next Release: August 6, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, July 29, 2009) Since...

  11. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    7, 2008 Next Release: July 24, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview The report week ended July 16 registered significant...

  12. Unconventional Natural Gas

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... 21 Exhibit 1-9 U.S. oil- and gas-producing ... for natural gas extraction (NETL, 2014) ... shale gas, tight gas sands, and coalbed methane resources. ...

  13. Natural gas annual 1997

    SciTech Connect

    1998-10-01

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1997 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1993 to 1997 for each Census Division and each State. Annual historical data are shown at the national level. 27 figs., 109 tabs.

  14. Natural Gas Weekly Update

    Annual Energy Outlook

    average, the general price level in the natural gas market has shown surprising resilience over the past few weeks. After an extended price decline since mid December, spot...

  15. Natural Gas Weekly Update

    Annual Energy Outlook

    sand with very little natural rock bottom and reef habitat. Without artificial reefs, fish and marine life typically would become widely dispersed. In the Gulf of Mexico...

  16. Historical Natural Gas Annual

    Annual Energy Outlook

    Historical Natural Gas Annual . 1996 Published October 1997 1997 Published October 1998 1998 Published October 1999 1999 Published October 2000 2000 Published December 2001

  17. ,"Total Natural Gas Consumption

    Energy Information Administration (EIA) (indexed site)

    Gas Consumption (billion cubic feet)",,,,,"Natural Gas Energy Intensity (cubic feetsquare foot)" ,"Total ","Space Heating","Water Heating","Cook- ing","Other","Total ","Space...

  18. Natural gas dehydration apparatus

    DOEpatents

    Wijmans, Johannes G; Ng, Alvin; Mairal, Anurag P

    2006-11-07

    A process and corresponding apparatus for dehydrating gas, especially natural gas. The process includes an absorption step and a membrane pervaporation step to regenerate the liquid sorbent.

  19. Natural Gas Weekly Update

    Annual Energy Outlook

    which summarizes the likely demand, supply, and prices for natural gas, heating oil, propane, and electricity during the upcoming winter (October 2004 - March 2005). According to...

  20. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Significant New Deepwater Oil and Natural Gas Discovery: A successful production test in the deepwater Gulf of Mexico has confirmed a significant new oil play in the lower...

  1. Alkaline solution/binder ratio as a determining factor in the alkaline activation of aluminosilicates

    SciTech Connect

    Ruiz-Santaquiteria, C.; Fernandez-Jimenez, A.; Palomo, A.

    2012-09-15

    This study investigates the effect of the alkaline solution/binder (S/B) ratio on the composition and nanostructure of the reaction products generated in the alkaline activation of aluminosilicates. The experiments used two mixtures of fly ash and dehydroxylated white clay and for each of these, varying proportions of the solution components. The alkali activator was an 8 M NaOH solution (with and without sodium silicate) used at three S/B ratios: 0.50, 0.75 and 1.25. The {sup 29}Si, {sup 27}Al MAS NMR and XRD characterisation of the reaction products reveal that for ratios nearest the value delivering suitable paste workability, the reaction-product composition and structure depend primarily on the nature and composition of the starting materials and the alkaline activator used. However, when an excess alkaline activator is present in the system, the reaction products tend to exhibit SiO{sub 2}/Al{sub 2}O{sub 3} ratios of approximately 1, irrespective of the composition of the starting binder or the alkaline activator.

  2. Magnesite Step Growth Rates as a Function of the Aqueous Magnesium:Carbonate Ratio

    DOE PAGES [OSTI]

    Bracco, Jacquelyn N.; Stack, Andrew G.; Higgins, Steven R.

    2014-10-01

    Step velocities of monolayer-height steps on the (101⁻4) magnesite surface have been measured as functions of the aqueous magnesium-to-carbonate ratio and saturation index (SI) using a hydrothermal atomic force microscope (HAFM). At SI ≤ 1.9 and 80-90 °C, step velocities were found to be invariant with changes in the magnesium-to-carbonate ratio, an observation in contrast with standard models for growth and dissolution of ionically-bonded, multi-component crystals. However, at high saturation indices (SI = 2.15), step velocities displayed a ratio dependence, maximized at magnesium-to-carbonate ratios slightly greater than 1:1. Traditional affinity-based models were unable to describe growth rates at the highermore » saturation index. Step velocities also could not be modeled solely through nucleation of kink sites, in contrast to other minerals whose bonding between constituent ions is also dominantly ionic in nature, such as calcite and barite. Instead, they could be described only by a model that incorporates both kink nucleation and propagation. Based on observed step morphological changes at these higher saturation indices, the step velocity maximum at SI = 2.15 is likely due to the rate of attachment to propagating kink sites overcoming the rate of detachment from kink sites as the latter becomes less significant under far from equilibrium conditions.« less

  3. LCO Nature | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    LCO Nature Jump to: navigation, search Name: LCO Nature Place: Germany Sector: Renewable Energy Product: Based in Hamburg, LCO Nature is a consultancy and renewable energy project...

  4. Easy natur | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    natur Jump to: navigation, search Name: Easy-natur Place: Germany Sector: Buildings Product: Installs PV systems on residential buildings. References: Easy-natur1 This article is...

  5. EIA - Natural Gas Pipeline Network - Combined Natural Gas Transportati...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Combined Natural Gas Transportation Maps About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates U.S. Natural Gas Pipeline ...

  6. EIA - Natural Gas Pipeline Network - Natural Gas Supply Basins...

    Gasoline and Diesel Fuel Update

    Corridors About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates U.S. Natural Gas Supply Basins Relative to Major Natural ...

  7. Vermont Agency of Natural Resources Natural Resources Atlas ...

    OpenEI (Open Energy Information) [EERE & EIA]

    Vermont Agency of Natural Resources Natural Resources Atlas Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Vermont Agency of Natural Resources Natural...

  8. Florida Natural Gas Summary

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Vented and Flared 0 0 0 0 NA 0 1971-2015 Marketed Production 12,409 15,125 773 292 496 499 1967-2015 Natural Gas Processed 2,915 2014-2015 Natural Gas Processed 2,915 1967-2015 ...

  9. ,"Oklahoma Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...50OK3","N3010OK3","N3020OK3","N3035OK3","NA1570SOK3","N3045OK3" "Date","Oklahoma Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Oklahoma Natural Gas Pipeline and ...

  10. ,"Ohio Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ..."N3050OH3","N3010OH3","N3020OH3","N3035OH3","NA1570SOH3","N3045OH3" "Date","Ohio Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Ohio Natural Gas Pipeline and ...

  11. Louisiana Natural Gas Summary

    Gasoline and Diesel Fuel Update

    Marketed Production 2,210,099 3,029,206 2,955,437 2,360,202 1,960,813 1,776,800 1967-2015 Natural Gas Processed 2,207,760 2,048,175 978,100 923,772 823,742 1967-2015 Natural Gas ...

  12. Pennsylvania Natural Gas Summary

    Gasoline and Diesel Fuel Update

    Marketed Production 572,902 1,310,592 2,256,696 3,259,042 4,257,693 4,812,983 1967-2015 Natural Gas Processed 56,162 131,959 236,817 396,726 1967-2015 Natural Gas Processed 51,023 ...

  13. ,"Utah Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ..."N3050UT3","N3010UT3","N3020UT3","N3035UT3","NA1570SUT3","N3045UT3" "Date","Utah Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Utah Natural Gas Pipeline and ...

  14. ,"Wyoming Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...050WY3","N3010WY3","N3020WY3","N3035WY3","NA1570SWY3","N3045WY3" "Date","Wyoming Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Wyoming Natural Gas Pipeline and ...

  15. ,"Oregon Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050OR3","N3010OR3","N3020OR3","N3035OR3","N3045OR3" "Date","Natural Gas Citygate Price in Oregon (Dollars per Thousand Cubic Feet)","Oregon Price of Natural ...

  16. ,"Hawaii Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050HI3","N3010HI3","N3020HI3","N3035HI3","N3045HI3" "Date","Natural Gas Citygate Price in Hawaii (Dollars per Thousand Cubic Feet)","Hawaii Price of Natural ...

  17. ,"Florida Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...050FL3","N3010FL3","N3020FL3","N3035FL3","NA1570SFL3","N3045FL3" "Date","Florida Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Florida Natural Gas Pipeline and ...

  18. ,"Alaska Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050AK3","N3010AK3","N3020AK3","N3035AK3","N3045AK3" "Date","Natural Gas Citygate Price in Alaska (Dollars per Thousand Cubic Feet)","Alaska Price of Natural ...

  19. ,"Nevada Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050NV3","N3010NV3","N3020NV3","N3035NV3","N3045NV3" "Date","Natural Gas Citygate Price in Nevada (Dollars per Thousand Cubic Feet)","Nevada Price of Natural ...

  20. ,"Kansas Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050KS3","N3010KS3","N3020KS3","N3035KS3","N3045KS3" "Date","Natural Gas Citygate Price in Kansas (Dollars per Thousand Cubic Feet)","Kansas Price of Natural ...

  1. ,"Montana Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...050MT3","N3010MT3","N3020MT3","N3035MT3","NA1570SMT3","N3045MT3" "Date","Montana Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Montana Natural Gas Imports Price ...

  2. ,"Ohio Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050OH3","N3010OH3","N3020OH3","N3035OH3","N3045OH3" "Date","Natural Gas Citygate Price in Ohio (Dollars per Thousand Cubic Feet)","Ohio Price of Natural Gas ...

  3. ,"Arizona Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...050AZ3","N3010AZ3","N3020AZ3","N3035AZ3","NA1570SAZ3","N3045AZ3" "Date","Arizona Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Price of Arizona Natural Gas ...

  4. ,"Kansas Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...3050KS3","N3010KS3","N3020KS3","N3035KS3","NA1570SKS3","N3045KS3" "Date","Kansas Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Kansas Natural Gas Pipeline and ...

  5. ,"Kentucky Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...50KY3","N3010KY3","N3020KY3","N3035KY3","NA1570SKY3","N3045KY3" "Date","Kentucky Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Kentucky Natural Gas Pipeline and ...

  6. ,"Iowa Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050IA3","N3010IA3","N3020IA3","N3035IA3","N3045IA3" "Date","Natural Gas Citygate Price in Iowa (Dollars per Thousand Cubic Feet)","Iowa Price of Natural Gas ...

  7. ,"Texas Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050TX3","N3010TX3","N3020TX3","N3035TX3","N3045TX3" "Date","Natural Gas Citygate Price in Texas (Dollars per Thousand Cubic Feet)","Texas Price of Natural ...

  8. ,"Michigan Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...50MI3","N3010MI3","N3020MI3","N3035MI3","NA1570SMI3","N3045MI3" "Date","Michigan Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Michigan Natural Gas Imports Price ...

  9. ,"Vermont Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...1480SVT3","N3050VT3","N3010VT3","N3020VT3","N3035VT3","N3045VT3" "Date","Vermont Natural Gas Imports Price (Dollars per Thousand Cubic Feet)","Vermont Natural Gas Pipeline and ...

  10. ,"Utah Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050UT3","N3010UT3","N3020UT3","N3035UT3","N3045UT3" "Date","Natural Gas Citygate Price in Utah (Dollars per Thousand Cubic Feet)","Utah Price of Natural Gas ...

  11. Engineered Natural Systems

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Engineered Natural Systems Onsite researchers at NETL develop processes, techniques, instrumentation, and relationships to collect, interpret, and disseminate data in an effort to characterize and understand the behavior of engineered natural systems. Research includes investigating theoretical and observed phenomena to support program needs and developing new concepts in the areas of analytical biogeochemistry, geology, and monitoring. Specific expertise includes: Analytical- Bio- and Geo-

  12. ARM - Evaluation Product - Raman Lidar Water Vapor Mixing Ratio

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ProductsRaman Lidar Water Vapor Mixing Ratio ARM Data Discovery Browse Data Documentation Use the Data File Inventory tool to view data availability at the file level. Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Raman Lidar Water Vapor Mixing Ratio [ ARM research - evaluation data product ] The data set contains time- and height-resolved (10-min and 60-m) water vapor mixing ratios derived from the ARM Raman lidars at

  13. Thermoacoustic natural gas liquefier

    SciTech Connect

    Swift, G.; Gardner, D.; Hayden, M.; Radebaugh, R.; Wollan, J.

    1996-07-01

    This is the final report of a two-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). This project sought to develop a natural-gas-powered natural-gas liquefier that has absolutely no moving parts and requires no electrical power. It should have high efficiency, remarkable reliability, and low cost. The thermoacoustic natural-gas liquefier (TANGL) is based on our recent invention of the first no-moving-parts cryogenic refrigerator. In short, our invention uses acoustic phenomena to produce refrigeration from heat, with no moving parts. The required apparatus comprises nothing more than heat exchangers and pipes, made of common materials, without exacting tolerances. Its initial experimental success in a small size lead us to propose a more ambitious application: large-energy liquefaction of natural gas, using combustion of natural gas as the energy source. TANGL was designed to be maintenance-free, inexpensive, portable, and environmentally benign.

  14. DOE Tour of Zero: 5th Street Deep Rehab by Carl Franklin Homes...

    Energy Saver

    Seasonal Energy Efficiency Ratio (SEER) of 20. 9 of 12 An old addition, which had ... in the summer." zerhtourCarlFranklin2016NP.jpg "It's our first home and we love it. ...

  15. DOE Zero Energy Ready Home Case Study 2014: Murphy Brothers Contractin...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... The heat pump provides cooling for the entire house with a Seasonal Energy Efficiency Ratio (SEER) of 16.5. The heat pump provides heating at a heating seasonal performance factor ...

  16. Natural gas-assisted steam electrolyzer

    DOEpatents

    Pham, Ai-Quoc; Wallman, P. Henrik; Glass, Robert S.

    2000-01-01

    An efficient method of producing hydrogen by high temperature steam electrolysis that will lower the electricity consumption to an estimated 65 percent lower than has been achievable with previous steam electrolyzer systems. This is accomplished with a natural gas-assisted steam electrolyzer, which significantly reduces the electricity consumption. Since this natural gas-assisted steam electrolyzer replaces one unit of electrical energy by one unit of energy content in natural gas at one-quarter the cost, the hydrogen production cost will be significantly reduced. Also, it is possible to vary the ratio between the electricity and the natural gas supplied to the system in response to fluctuations in relative prices for these two energy sources. In one approach an appropriate catalyst on the anode side of the electrolyzer will promote the partial oxidation of natural gas to CO and hydrogen, called Syn-Gas, and the CO can also be shifted to CO.sub.2 to give additional hydrogen. In another approach the natural gas is used in the anode side of the electrolyzer to burn out the oxygen resulting from electrolysis, thus reducing or eliminating the potential difference across the electrolyzer membrane.

  17. Public Data Set: On Virial Analysis at Low Aspect Ratio

    DOE Data Explorer

    Bongard, Michael W [University of Wisconsin-Madison] (ORCID:0000000231609746); Barr, Jayson L [University of Wisconsin-Madison] (ORCID:0000000177685931); Fonck, Raymond J [University of Wisconsin-Madison] (ORCID:0000000294386762); Reusch, Joshua A [University of Wisconsin-Madison] (ORCID:0000000284249422); Thome, Kathreen E [Oak Ridge Associated Universities] (ORCID:0000000248013922)

    2016-07-28

    This public data set contains openly-documented, machine readable digital research data published in M.W. Bongard, et al., 'On Virial Analysis at Low Aspect Ratio,' Phys. Plasmas 23, 072508 (2016).

  18. System and method for high precision isotope ratio destructive analysis

    DOEpatents

    Bushaw, Bruce A; Anheier, Norman C; Phillips, Jon R

    2013-07-02

    A system and process are disclosed that provide high accuracy and high precision destructive analysis measurements for isotope ratio determination of relative isotope abundance distributions in liquids, solids, and particulate samples. The invention utilizes a collinear probe beam to interrogate a laser ablated plume. This invention provides enhanced single-shot detection sensitivity approaching the femtogram range, and isotope ratios that can be determined at approximately 1% or better precision and accuracy (relative standard deviation).

  19. Statistical analyses of plume composition and deposited radionuclide mixture ratios

    SciTech Connect

    Kraus, Terrence D.; Sallaberry, Cedric Jean-Marie; Eckert-Gallup, Aubrey Celia; Brito, Roxanne; Hunt, Brian D.; Osborn, Douglas M.

    2014-01-01

    A proposed method is considered to classify the regions in the close neighborhood of selected measurements according to the ratio of two radionuclides measured from either a radioactive plume or a deposited radionuclide mixture. The subsequent associated locations are then considered in the area of interest with a representative ratio class. This method allows for a more comprehensive and meaningful understanding of the data sampled following a radiological incident.

  20. Natural Gas Weekly Update

    Annual Energy Outlook

    Holiday Notice: Due to the federal holiday in observance of Martin Luther King Day on Monday, January 21, 2002, the next issue of the Natural Gas Weekly Update will be published on...

  1. Natural Gas Weekly Update

    Annual Energy Outlook

    delivery volumes. Northern Natural Gas Company issued a system overrun limitation (SOL) for all market-area zones for gas day February 21, 2008. The SOL was the result of...

  2. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    this week led to decreases in consumption of natural gas for power generation. Power burn fell almost 4 percent week over week, according to data from Bentek Energy Services,...

  3. Natural Gas Weekly Update

    Annual Energy Outlook

    reverse direction and fall to 3.91 per MMBtu yesterday. Natural gas demand for power burn increased across the country during the report week. According to data from BENTEK...

  4. Natural Gas Weekly Update

    Annual Energy Outlook

    In contrast to natural gas spot prices, crude oil prices continued to soften. After dropping over 1 per barrel the previous week, the average spot price for West Texas...

  5. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    that likely contributed to the run-up in natural gas prices late last week was the spike in crude oil prices as WTI crude oil surged 2.70 per barrel to average 30.10 per...

  6. Natural Gas Weekly Update

    Annual Energy Outlook

    per MMBtu, falling 23 cents or 3 percent since Wednesday, December 12. Natural gas in storage was 3,173 billion cubic feet (Bcf) as of December 14, which is 9 percent above the...

  7. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    a decrease of about 0.36, or 6.9 percent, since last Wednesday. Wellhead Prices Annual Energy Review More Price Data Storage Working natural gas in storage totaled 2,213 Bcf as...

  8. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    237 Producing Region 609 424 44% 10 599 Total Lower 48 1,594 1,250 28% 39 1,555 Source: Energy Information Administration: Form EIA-912, "Weekly Underground Natural Gas Storage...

  9. Natural Gas Weekly Update

    Annual Energy Outlook

    Producing Region 779 755 24 788 -1.1% Total Lower 48 2,863 2,788 75 2,900 -1.3% Source: Energy Information Administration: Form EIA-912, "Weekly Underground Natural Gas Storage...

  10. Natural Gas Weekly Update

    Annual Energy Outlook

    of natural gas into storage, despite robust inventories. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 3,258 Bcf as of...

  11. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    5.06 per MMBtu, a decrease of only 0.01 per MMBtu on the week. Wellhead Prices Annual Energy Review More Price Data Storage Working natural gas in storage increased to 2,762...

  12. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    to withdraw natural gas from storage to meet current demand. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage decreased to 2,406 Bcf as of...

  13. Natural Gas Weekly Update

    Annual Energy Outlook

    167 Producing Region 206 416 -50.5% -2 208 Total Lower 48 671 1,200 -44.1% -9 680 Source: Energy Information Administration: Form EIA-912, "Weekly Underground Natural Gas Storage...

  14. Natural Gas Weekly Update

    Annual Energy Outlook

    decreasing about 0.23, or 4.4 percent, since last Wednesday. Wellhead Prices Annual Energy Review More Price Data Storage Working natural gas in storage increased to 2,840...

  15. Natural Gas Weekly Update

    Annual Energy Outlook

    MMBtu lower than the final price of the November 2009 contract. Wellhead Prices Annual Energy Review More Price Data Storage As of Friday, September 24, working natural gas in...

  16. Natural Gas Weekly Update

    Annual Energy Outlook

    fell 31 cents, from 5.554 last Wednesday to 5.239 yesterday. Wellhead Prices Annual Energy Review More Price Data Storage Working natural gas in storage increased to 2,165...

  17. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Working gas in storage was 3,121 Bcf as of Friday, Oct 24, 2003, according to the Energy Information Administration (EIA) Weekly Natural Gas Storage Report. This is 2.7...

  18. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Region 291 458 -36.5% -42 333 Total Lower 48 1,014 1,522 33.4% -154 1,168 Source: Energy Information Administration: Form EIA-912, "Weekly Underground Natural Gas Storage...

  19. Natural Gas Weekly Update

    Annual Energy Outlook

    Region 751 772 -2.7% -43 794 Total Lower 48 2,794 2,876 -2.9% -162 2,956 Source: Energy Information Administration: Form EIA-912, "Weekly Underground Natural Gas Storage...

  20. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    8 284 Producing Region 714 515 39% 15 699 Total Lower 48 1,974 1,650 20% 81 1,893 Source: Energy Information Administration: Form EIA-912, "Weekly Underground Natural Gas Storage...

  1. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Henry Hub increased a moderate 0.023 per MMBtu for the week to 3.877. Natural gas in storage decreased to 3,097 Bcf, which exceeds the 5-year average by 2.4 percent. A general...

  2. Natural Gas Weekly Update

    Annual Energy Outlook

    intraday trading at more than 110 per barrel) likely provided upward pressure on all energy commodities. The largest daily natural gas price increase of the week (0.25 per...

  3. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    February 5, 2004 (next release 2:00 p.m. on February 12) Since Wednesday, January 28, natural gas spot prices have decreased at most market locations in the Lower 48 States. For...

  4. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Table A4 of the Annual Energy Review 2002. Source: Energy Information Administration, Office of Oil and Gas. Storage: Natural gas stocks stood at 2,155 Bcf as of Friday, July 9,...

  5. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    further downward pressure on spot prices. As of yesterday, October 1, the Minerals Management Service (MMS) reported that 3.5 billion cubic feet (Bcf) per day of natural gas...

  6. Natural Gas Weekly Update

    Annual Energy Outlook

    Trends Natural Gas and Crude Oil Production Shut-ins in the Gulf of Mexico. The Minerals Management Service (MMS) of the Department of the Interior reported that a significant...

  7. ,"Mississippi Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050MS3","N3010MS3","N3020MS3","N3035MS3","N3045MS3" "Date","Natural Gas Citygate Price in Mississippi (Dollars per Thousand Cubic Feet)","Mississippi Price ...

  8. ,"Maryland Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050MD3","N3010MD3","N3020MD3","N3035MD3","N3045MD3" "Date","Natural Gas Citygate Price in Maryland (Dollars per Thousand Cubic Feet)","Maryland Price of ...

  9. ,"Florida Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050FL3","N3010FL3","N3020FL3","N3035FL3","N3045FL3" "Date","Natural Gas Citygate Price in Florida (Dollars per Thousand Cubic Feet)","Florida Price of ...

  10. ,"Missouri Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050MO3","N3010MO3","N3020MO3","N3035MO3","N3045MO3" "Date","Natural Gas Citygate Price in Missouri (Dollars per Thousand Cubic Feet)","Missouri Price of ...

  11. ,"Alabama Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050AL3","N3010AL3","N3020AL3","N3035AL3","N3045AL3" "Date","Natural Gas Citygate Price in Alabama (Dollars per Thousand Cubic Feet)","Alabama Price of ...

  12. ,"Virginia Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050VA3","N3010VA3","N3020VA3","N3035VA3","N3045VA3" "Date","Natural Gas Citygate Price in Virginia (Dollars per Thousand Cubic Feet)","Virginia Price of ...

  13. ,"Louisiana Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050LA3","N3010LA3","N3020LA3","N3035LA3","N3045LA3" "Date","Natural Gas Citygate Price in Louisiana (Dollars per Thousand Cubic Feet)","Louisiana Price of ...

  14. ,"Pennsylvania Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050PA3","N3010PA3","N3020PA3","N3035PA3","N3045PA3" "Date","Natural Gas Citygate Price in Pennsylvania (Dollars per Thousand Cubic Feet)","Pennsylvania Price ...

  15. ,"Nebraska Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050NE3","N3010NE3","N3020NE3","N3035NE3","N3045NE3" "Date","Natural Gas Citygate Price in Nebraska (Dollars per Thousand Cubic Feet)","Nebraska Price of ...

  16. ,"Wyoming Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050WY3","N3010WY3","N3020WY3","N3035WY3","N3045WY3" "Date","Natural Gas Citygate Price in Wyoming (Dollars per Thousand Cubic Feet)","Wyoming Price of ...

  17. ,"Minnesota Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050MN3","N3010MN3","N3020MN3","N3035MN3","N3045MN3" "Date","Natural Gas Citygate Price in Minnesota (Dollars per Thousand Cubic Feet)","Minnesota Price of ...

  18. ,"Maine Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ,"Data 2","Imports and Exports",2,"Annual",2015,"06301982" ,"Data 3","Liquefied Natural Gas Storage",3,"Annual",2015,"06301981" ,"Data 4","Consumption",8,"Annual",2015,"0630...

  19. ,"Arizona Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050AZ3","N3010AZ3","N3020AZ3","N3035AZ3","N3045AZ3" "Date","Natural Gas Citygate Price in Arizona (Dollars per Thousand Cubic Feet)","Arizona Price of ...

  20. ,"Montana Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050MT3","N3010MT3","N3020MT3","N3035MT3","N3045MT3" "Date","Natural Gas Citygate Price in Montana (Dollars per Thousand Cubic Feet)","Montana Price of ...

  1. ,"Kentucky Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050KY3","N3010KY3","N3020KY3","N3035KY3","N3045KY3" "Date","Natural Gas Citygate Price in Kentucky (Dollars per Thousand Cubic Feet)","Kentucky Price of ...

  2. ,"Washington Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050WA3","N3010WA3","N3020WA3","N3035WA3","N3045WA3" "Date","Natural Gas Citygate Price in Washington (Dollars per Thousand Cubic Feet)","Washington Price of ...

  3. Future of Natural Gas

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Natural Gas Bill Eisele, CEM SC Electric & Gas Co Hosted by: FEDERAL UTILITY PARTNERSHIP WORKING GROUP SEMINAR November 5-6, 2014 Cape Canaveral. Florida Agenda * Gas Facts * ...

  4. ,"California Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050CA3","N3010CA3","N3020CA3","N3035CA3","N3045CA3" "Date","Natural Gas Citygate Price in California (Dollars per Thousand Cubic Feet)","California Price of ...

  5. ,"Illinois Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050IL3","N3010IL3","N3020IL3","N3035IL3","N3045IL3" "Date","Natural Gas Citygate Price in Illinois (Dollars per Thousand Cubic Feet)","Illinois Price of ...

  6. ,"Michigan Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050MI3","N3010MI3","N3020MI3","N3035MI3","N3045MI3" "Date","Natural Gas Citygate Price in Michigan (Dollars per Thousand Cubic Feet)","Michigan Price of ...

  7. ,"Oklahoma Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050OK3","N3010OK3","N3020OK3","N3035OK3","N3045OK3" "Date","Natural Gas Citygate Price in Oklahoma (Dollars per Thousand Cubic Feet)","Oklahoma Price of ...

  8. ,"Arkansas Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050AR3","N3010AR3","N3020AR3","N3035AR3","N3045AR3" "Date","Natural Gas Citygate Price in Arkansas (Dollars per Thousand Cubic Feet)","Arkansas Price of ...

  9. ,"Colorado Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050CO3","N3010CO3","N3020CO3","N3035CO3","N3045CO3" "Date","Natural Gas Citygate Price in Colorado (Dollars per Thousand Cubic Feet)","Colorado Price of ...

  10. ,"Indiana Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050IN3","N3010IN3","N3020IN3","N3035IN3","N3045IN3" "Date","Natural Gas Citygate Price in Indiana (Dollars per Thousand Cubic Feet)","Indiana Price of ...

  11. ,"Tennessee Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050TN3","N3010TN3","N3020TN3","N3035TN3","N3045TN3" "Date","Natural Gas Citygate Price in Tennessee (Dollars per Thousand Cubic Feet)","Tennessee Price of ...

  12. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Friday was undone the following day. The futures price for August delivery was able to stay ahead of the previous week by 12.2 cents to settle at 3.218 on Friday. Spot natural...

  13. Natural Gas Weekly Update

    Annual Energy Outlook

    levels and 25 percent below the 5-year average. Natural gas prices are likely to stay high as long as above-normal storage injection demand competes with industrial and...

  14. Natural Gas Weekly Update

    Annual Energy Outlook

    regions of the country and weather forecasts indicated colder temperatures are here to stay until at least the end of the month. Natural gas in storage declined to 2,195 Bcf with...

  15. Natural Gas Weekly Update

    Annual Energy Outlook

    7, 2010 at 2:00 P.M. Next Release: Thursday, October 14, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday,...

  16. Natural Gas Weekly Update

    Annual Energy Outlook

    4, 2010 at 2:00 P.M. Next Release: Thursday, October 21, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday,...

  17. Natural gas monthly

    SciTech Connect

    1996-05-01

    This document highlights activities, events, and analyses of interest to public and private sector organizations associated with the natural gas industry. Data presented include volume and price, production, consumption, underground storage, and interstate pipeline activities.

  18. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    of Hurricanes Katrina and Rita has disrupted natural gas supplies and continued to prop up prices at near-record highs around the nation. According to the Minerals Management...

  19. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    July 28 (next release 2:00 p.m. on August 4) Since Wednesday, July 20, natural gas spot prices have decreased at all market locations in the Lower 48 States. For the week...

  20. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    June 1 (next release 2:00 p.m. on June 8, 2006) Natural gas spot prices were virtually unchanged at most market locations in the Lower 48 States during the holiday-shortened...

  1. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    1 (next release 2:00 p.m. on October 28) Increased natural gas demand owing to falling temperatures this week (Wednesday-Wednesday, October 13-20) combined with higher petroleum...

  2. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    11 (next release 2:00 p.m. on August 18) Natural gas spot prices exhibited increases in most locations this week (Wednesday - Wednesday, August 3 - 10) as demand responded to above...

  3. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Spring-like temperatures in most regions of the country this week led to lower natural gas spot and futures prices in the Lower 48 States since Wednesday, March 7. On the week...

  4. Natural Gas Weekly Update

    Annual Energy Outlook

    10 (next release 2:00 p.m. on March 17) Natural gas spot prices increased this week (Wednesday to Wednesday, March 2-9) as a late season cold front moved into major gas-consuming...

  5. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    the week. Nearly 75 percent of this increase (0.282) came in Monday's trading. Natural gas in storage as of Friday, November 15 decreased by 1 Bcf to 3,096 Bcf, which exceeds the...

  6. Natural Gas Weekly Update

    Annual Energy Outlook

    26, 2007 (next release 2:00 p.m. on August 2, 2007) Since Wednesday, July 18, natural gas spot prices have decreased at all market locations in the Lower 48 States, with the...

  7. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    3 (next release 2:00 p.m. on February 10) Since Wednesday, January 26, natural gas spot price movements have been mixed, increasing at most market locations in the Lower 48 States...

  8. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    (April 11). The first weekly report of the traditional injection season brought natural gas volumes in underground storage to 1,592 Bcf as of Friday, April 6, which is 28.4...

  9. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2, 2003 (next release 2:00 p.m. on May 29) Natural gas spot prices at most market locations in the Lower 48 States have dipped 5 to 20 cents per MMBtu since Wednesday, May 14....

  10. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    16 (next release 2:00 p.m. on November 30, 2006) Changes in natural gas spot prices were modest at most trading locations in the Lower 48 States this week (Wednesday-Wednesday,...

  11. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    1, 2007 (next release 2:00 p.m. on March 8, 2007) Natural gas spot prices decreased at almost all market locations this week in spite of continuing cold weather through most of the...

  12. Natural Gas Weekly Update

    Annual Energy Outlook

    5, 2007) Warmer-than-normal temperatures throughout the country led to lower natural gas spot prices at many trading locations in the Lower 48 States. For the week...

  13. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    14 (next release 2:00 p.m. on December 21, 2006) Softening natural gas market conditions led to spot price decreases at most market locations in the Lower 48 States since...

  14. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    8 (next release 2:00 p.m. on July 15) Natural gas spot prices climbed 15 to 62 cents per MMBtu across the Lower 48 States this week (Wednesday, June 30-Wednesday, July 7)....

  15. Natural Gas Weekly Update

    Annual Energy Outlook

    25, 2007 (next release 2:00 p.m. on February 1, 2007) Natural gas spot prices across the country surged this week (Wednesday-Wednesday, January 17-24) as a blast of Arctic cold...

  16. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    April 24, 2003 (next release 2:00 p.m. on May 1) Since Wednesday, April 16, natural gas spot prices were lower at nearly all locations in the Lower 48 States. For the week...

  17. Natural Gas Weekly Update

    Annual Energy Outlook

    2007 (next release 2:00 p.m. on February 8, 2007) Since Wednesday, January 24, natural gas spot prices have increased at most market locations in the Lower 48 States, with...

  18. Natural Gas Weekly Update

    Annual Energy Outlook

    country this week and slightly lower prices for crude oil led to an easing of natural gas spot prices in the Lower 48 States since Wednesday, May 3. On the week...

  19. Natural Gas Weekly Update

    Annual Energy Outlook

    18 (next release 2:00 p.m. on May 25, 2006) Natural gas spot prices decreased this week (Wednesday - Wednesday, May 10-17) at virtually all market locations, partly because of weak...

  20. Natural Gas Weekly Update

    Annual Energy Outlook

    May 6 (next release 2:00 p.m. on May 13) Upward pressure on spot and futures natural gas prices continued for a second consecutive week (Wednesday-Wednesday, April 28-May 5), owing...

  1. Natural Gas Weekly Update

    Annual Energy Outlook

    the trend of week-over-week increases for the fifth consecutive week. Natural gas in storage was 1,285 billion cubic feet (Bcf) as of April 18, which is 1.9 percent...

  2. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    0, 2003 (next release 2:00 p.m. on March 27) Natural gas spot prices declined at nearly all trading locations for a third consecutive week (March 12-19) as temperatures became more...

  3. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    February 7, 2008 Next release: February 14, 2008 Since Wednesday, January 30, natural gas spot prices decreased at most markets in the Lower 48 States. Prices at the Henry Hub...

  4. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    December 30 (next release 2:00 p.m. on January 6) Since Wednesday, December 22, natural gas spot prices have decreased sharply at virtually all market locations in the Lower 48...

  5. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    5, 2002 (next release 2:00 p.m. on July 11) Natural gas spot prices declined by 30 cents or more at most market locations in the Lower 48 last week as temperatures across the...

  6. Natural Gas Weekly Update

    Annual Energy Outlook

    9 (next release 2:00 p.m. on March 16, 2006) Natural gas spot price movements were mixed this week (Wednesday to Wednesday, March 1-8) as temperatures varied across the Lower 48...

  7. Natural Gas Weekly Update

    Annual Energy Outlook

    to Wednesday, April 2) Released: April 3, 2008 Next release: April 10, 2008 Natural gas spot prices increased in all trading regions in the Lower 48 States this report week...

  8. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    16, 2007 (next release 2:00 p.m. on August 23, 2007) Since Wednesday, August 8, natural gas spot prices increased at virtually all markets in the Lower 48 States outside the Rocky...

  9. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    settled at 7.737 per MMBtu, only 0.001 per MMBtu lower on the week. Recent Natural Gas Market Data Estimated Average Wellhead Prices Sept-04 Oct-04 Nov-04 Dec-04 Jan-05...

  10. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    13, 2003 (next release 2:00 p.m. on March 20) Since Wednesday, March 5, natural gas spot prices have decreased at nearly all locations in the Lower 48 States, falling more than...

  11. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    March 3 (next release 2:00 p.m. on March 10) Following the cold weather trend, natural gas prices have increased since Wednesday, February 23 at most market locations in the Lower...

  12. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Friday, July 6, 2007 (next release 2:00 p.m. on July 12, 2007) Natural gas spot prices decreased sharply this week (Wednesday-Thursday, June 27-July 5), although crude oil prices...

  13. Natural Gas Weekly Update

    Annual Energy Outlook

    30, 2003 (next release 2:00 p.m. on February 6) Since Wednesday, January 22, natural gas spot prices have decreased at nearly all locations in the Lower 48 States, falling up to...

  14. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    8 (next release 2:00 p.m. on November 4) Natural gas spot prices spiked significantly higher for the second consecutive week, while futures prices for delivery months beyond...

  15. Natural Gas Weekly Update

    Annual Energy Outlook

    8, 2007 (next release 2:00 p.m. on March 15, 2007) Since Wednesday, February 28, natural gas spot prices generally increased east of the Rocky Mountains and decreased in the Rocky...

  16. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    crude oil prices and increasing cooling demand in some regions contributed to natural gas spot prices climbing more than 10 percent at trading locations in the Lower 48 States...

  17. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    12, 2002 (next release 2:00 p.m. on September 19) Natural gas spot prices have moved up by 10 to 25 cents at most trading locations since Wednesday, September 4. For the week...

  18. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    3, 2003 (next release 2:00 p.m. on July 10) Compared with Wednesday, June 25, natural gas spot prices were lower at all locations in the Lower 48 States in trading on July 2....

  19. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    23 (next release 2:00 p.m. on March 30, 2006) Natural gas spot prices showed relatively modest changes at most market locations in the Lower 48 States since Wednesday, March 15,...

  20. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    for the March contract ended the week up almost 5 cents at 2.191 per MMBtu. Natural gas stocks remained well above last year's level as estimated net withdrawals were 82 Bcf...

  1. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Leasing. The U. S. Department of the Interior's Minerals Management Service (MMS) held a sale of offshore oil and natural gas leases in the Central Gulf of Mexico on March 20,...

  2. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    the lease sale could result in the recovery of between 276 and 654 million barrels of oil and from 1.59 to 3.30 trillion cubic feet of natural gas. Sale 197 in the Eastern Gulf...

  3. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Monday, December 29 (next release 2:00 p.m. on January 8) A trend of increasing natural gas spot prices since mid-November abruptly halted late in the week before Christmas, owing...

  4. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    What Consumers Should Know An Assessment of Prices of Natural Gas Futures Contracts As A Predictor of Realized Spot Prices at the Henry Hub Overview of U.S. Legislation and...

  5. Natural Gas Weekly Update

    Annual Energy Outlook

    8, 2007 (next release 2:00 p.m. on October 25, 2007) Natural gas spot prices increased since Wednesday, October 10, at nearly all market locations. For the week (Wednesday to...

  6. Natural Gas Weekly Update

    Annual Energy Outlook

    gas in combination with water. Gas hydrate is thought to exist in great abundance in nature and has the potential to be a significant new energy source to meet future energy...

  7. Natural Gas Weekly Update

    Annual Energy Outlook

    18 (next release 2:00 p.m. on August 25) Since Wednesday, August 10, natural gas spot prices increased more than 50 cents per MMBtu at virtually all market locations in the Lower...

  8. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    26 (next release 2:00 p.m. on November 2, 2006) Since Wednesday, October 18, natural gas spot prices increased significantly at all market locations, as colder weather moved across...

  9. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    the price response was more robust (up 4.4 percent) with the August 2011 natural gas contract price gaining ground over the week, closing at 4.403 per MMBtu on Wednesday....

  10. Natural Gas Weekly Update

    Annual Energy Outlook

    August 5 (next release 2:00 p.m. on August 12) Since Wednesday, July 28, natural gas spot prices have decreased at most market locations in the Lower 48 States. For the week...

  11. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    last Wednesday's level, to 5.097 per MMBtu at yesterday's close of trading. Natural gas stocks as of Friday, March 21 stood at 643 Bcf, which is 47.4 percent less than the...

  12. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    spike on Tuesday following the East Coast earthquake but the September 2011 natural gas contract eventually gave most of the gain back and closed at 3.922 per MMBtu on...

  13. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    7 (next release 2:00 p.m. on November 3) Natural gas spot prices increased sharply this week (Wednesday-Wednesday, October 19-26), as a large volume of production continued to be...

  14. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    delivery fell 29 cents on the week to close at 5.429 yesterday (March 24). Natural gas in storage as of Friday, March 19, decreased to 1,032 Bcf, which is 8.2 percent below...

  15. Natural Gas Weekly Update

    Annual Energy Outlook

    Ending Wednesday, October 5, 2011) Like autumn leaves floating down to earth, natural gas prices dropped decidedly from their 4 support branch this past week. In a whirlwind of...

  16. Natural Gas Weekly Update

    Annual Energy Outlook

    August 3 (next release 2:00 p.m. on August 10, 2006) Natural gas spot prices increased sharply this week (Wednesday-Wednesday, July 26 - August 2), as demand for power generation...

  17. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    April 22, 2004 (next release 2:00 p.m. on April 29) Since Wednesday, April 14, natural gas spot prices have decreased at virtually all market locations in the Lower 48 States. For...

  18. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    (MMBtu) on October 26. At the New York Mercantile Exchange (NYMEX), the November 2011 natural gas contract rose just under half a cent per MMBtu for the week to close at 3.590...

  19. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    21 (next release 2:00 p.m. on July 28) Since Wednesday, July 13, changes to natural gas spot prices were mixed, increasing at most market locations in the Lower 48 States, while...

  20. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    response was somewhat more pronounced (down 5.3 percent) with the September 2011 natural gas contract losing ground over the week, closing at 4.090 per MMBtu on Wednesday. Working...

  1. Natural Gas Weekly Update

    Annual Energy Outlook

    or 9 percent to 4.68 per MMBtu. Lighter cooling demand for natural gas owing to the Labor Day holiday weekend and milder temperatures east of the Rockies likely contributed...

  2. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Btu (MMBtu). The NEB noted the contrast of this forecast to the market prices of last summer, when natural gas prices peaked at more than 13 per MMBtu and crude oil reached a...

  3. Natural Gas Weekly Update

    Annual Energy Outlook

    at 2:00 P.M. Next Release: October 8, 2009 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, September 30,...

  4. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    8, 2007 (next release 2:00 p.m. on November 15, 2007) Natural gas spot price movements varied this week (Wednesday-Wednesday, October 31-November 7). Prices in Lower 48 market...

  5. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    5) Released: March 6, 2008 Next release: March 13, 2008 Since Wednesday, February 27, natural gas prices increased on both the spot and futures markets. There were a few...

  6. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Although prices in the West were generally lower on the week by a dime or less, a turbine outage on El Paso Natural Gas in the San Juan Basin boosted prices temporarily. El...

  7. Natural Gas Weekly Update

    Annual Energy Outlook

    2, 2010 at 2:00 P.M. Next Release: Thursday, April 29, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday,...

  8. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    73 cents since last Wednesday to close yesterday at 4.201 per MMBtu. Natural gas in storage as of Friday, September 22, was 3,254 Bcf, which is 12.2 percent above the 5-year...

  9. Natural Gas Weekly Update

    Annual Energy Outlook

    9, 2010 at 2:00 P.M. Next Release: Thursday, May 6, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday,...

  10. Natural Gas Weekly Update

    Annual Energy Outlook

    3, 2011 at 2:00 P.M. Next Release: Thursday, February 10, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending...

  11. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    9 (next release 2:00 p.m. on December 16) Both natural gas spot and futures prices fell significantly over the week (Wednesday to Wednesday, December 1-8), as temperatures in most...

  12. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    the holiday-shortened week, falling crude oil prices, and a favorable supply situation led to widespread declines in natural gas spot prices in the Lower 48 States since last...

  13. Natural Gas Weekly Update

    Annual Energy Outlook

    part of a 65 billion project to supply the United States with oil, natural gas, and electricity from Siberia. The tunnel, which would be the world's longest, would take 10 to 15...

  14. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    of Mexico continued to recover from the hurricane damage suffered in 2005. The Minerals Management Service (MMS) reported that shut-in natural gas production fell to 1.95 Bcf per...

  15. Natural Gas Weekly Update

    Annual Energy Outlook

    12), shut-in natural gas production exceeded 2.3 Bcf per day, as reported by the Minerals Management Service (MMS). Cumulative "lost" production since late August is 526.2 Bcf,...

  16. Natural Gas Weekly Update

    Annual Energy Outlook

    over the period covered by this report (September 28 to October 5). The Minerals Management Service (MMS) reported that as of Wednesday, October 5, shut-in natural gas...

  17. Natural Gas Weekly Update

    Annual Energy Outlook

    withdrawal from working gas storage reported last Thursday. A contributing factor to the run-up in natural gas prices could be climbing crude oil prices, which rallied late last...

  18. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    its oil and natural gas royalty-in-kind (RIK) program, which is expected to increase revenue and lower administrative costs linked with the program. The RIK approach takes...

  19. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    by 14.4 percent. During this period, U.S. manufacturers used less petroleum and coal in manufacturing processes. This expansion of gas use occurred although natural gas prices to...

  20. Natural Gas Weekly Update

    Annual Energy Outlook

    Price, West Texas Intermediate Crude Oil Spot Price, and Henry Hub Natural Gas Spot Price Graph More Summary Data Prices Prices increased at all trading locations during the week,...

  1. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    natural gas spot prices fell at most market locations in the Lower 48 States, with the Henry Hub spot price falling to 3.56 per million Btu (MMBtu), about a 7 percent decline...

  2. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    week's gas markets. As of Friday, May 11, 2001, the spot price of natural gas at the Henry Hub dropped 0.24 from the previous Friday to 4.25 per MMBtu. The NYMEX price of...

  3. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    prices have generally decreased for the week (Wednesday-Wednesday, February 2-9). The Henry Hub natural gas spot price fell 18 cents, or about 3 percent, while prices at most...

  4. Natural Gas Weekly Update

    Annual Energy Outlook

    increases ranged from 5 to 16 cents at every market location tracked by Natural Gas Intelligence. And even though the storm was fast-moving and short-lived, cash prices for...

  5. Natural Gas Weekly Update

    Annual Energy Outlook

    of 1 Tcf from the 1994 estimate of 51 Tcf. Ultimate potential for natural gas is a science-based estimate of the total amount of conventional gas in the province and is an...

  6. Natural Gas Weekly Update

    Annual Energy Outlook

    on Thursday, May 9, 2002. A sample of EIA's report can be seen at: Weekly Gas Storage Test Page. The Natural Gas Weekly Market Update report will convert to the new data series...

  7. Natural Gas Weekly Update

    Annual Energy Outlook

    in waters up to 9000 feet deep. Southern Natural Gas Company has scheduled a shut-in test at the Muldon Storage Field in Mississippi for April 5 through April 11. Under the...

  8. Preconception maternal polychlorinated biphenyl concentrations and the secondary sex ratio

    SciTech Connect

    Taylor, Kira C. [Division of Epidemiology, Statistics and Prevention Research, National Institutes of Child Health and Development (NICHD), NIH, DHHS, 6100 Executive Blvd, Room 7B03, Rockville, MD 20852 (United States); Department of Epidemiology, 1518 Clifton Road, NE Atlanta, GA 30322 (United States); Jackson, Leila W. [Department of Epidemiology and Biostatistics, WG37, Case Western Reserve University School of Medicine, 10900 Euclid Avenue Cleveland, OH 44106-4945 (United States); Lynch, Courtney D. [Division of Epidemiology, Statistics and Prevention Research, National Institutes of Child Health and Development (NICHD), NIH, DHHS, 6100 Executive Blvd, Room 7B03, Rockville, MD 20852 (United States); Kostyniak, Paul J. [Toxicology Research Center, 134 Cary Hall, University at Buffalo, State of New York, 3434 Main St., Buffalo, NY 14214-3000 (United States); Buck Louis, Germaine M. [Division of Epidemiology, Statistics and Prevention Research, National Institutes of Child Health and Development (NICHD), NIH, DHHS, 6100 Executive Blvd, Room 7B03, Rockville, MD 20852 (United States)]. E-mail: louisg@mail.nih.gov

    2007-01-15

    The secondary sex ratio is the ratio of male to female live births and historically has ranged from 102 to 106 males to 100 females. Temporal declines have been reported in many countries prompting authors to hypothesize an environmental etiology. Blood specimens were obtained from 99 women aged 24-34 prior to attempting pregnancy and quantified for 76 polychlorinated biphenyl (PCB) congeners using dual column gas chromatography with electron capture detection. Women were prospectively followed until pregnancy or 12 cycles of trying. The odds of a male birth for three PCB groupings (total, estrogenic, anti-estrogenic) controlling for maternal characteristics were estimated using logistic regression. Among the 50 women with live births and PCB data, 26 female and 24 male infants were born (ratio 0.92). After adjusting for age and body mass index, odds of a male birth were elevated among women in the second (OR=1.29) and third (OR=1.48) tertiles of estrogenic PCBs; odds (OR=0.70) were reduced among women in the highest tertile of anti-estrogenic PCBs. All confidence intervals included one. The direction of the odds ratios in this preliminary study varied by PCB groupings, supporting the need to study specific PCB patterns when assessing environmental influences on the secondary sex ratio.

  9. Natural Gas Modernization Clearinghouse Stakeholders | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Initiatives Natural Gas Modernization Clearinghouse Natural Gas Modernization Clearinghouse Stakeholders Natural Gas Modernization Clearinghouse Stakeholders Regulators ...

  10. Survey of plutonium and uranium atom ratios and activity levels in Mortandad Canyon

    SciTech Connect

    Gallaher, B.M.; Efurd, D.W.; Rokop, D.J.; Benjamin, T.M.; Stoker, A.K.

    1997-10-01

    For more than three decades, Mortandad Canyon has been the primary release area of treated liquid radioactive waste from the Los Alamos National Laboratory (Laboratory). In this survey, six water samples and seven stream sediment samples collected in Mortandad Canyon were analyzed by thermal ionization mass spectrometry to determine the plutonium and uranium activity levels and atom ratios. By measuring the {sup 240}Pu/{sup 239}Pu atom ratios, the Laboratory plutonium component was evaluated relative to that from global fallout. Measurements of the relative abundance of {sup 235}U and {sup 236}U were also used to identify non-natural components. The survey results indicate that the Laboratory plutonium and uranium concentrations in waters and sediments decrease relatively rapidly with distance downstream from the major industrial sources. Plutonium concentrations in shallow alluvial groundwater decrease by approximately 1,000-fold along a 3,000-ft distance. At the Laboratory downstream boundary, total plutonium and uranium concentrations were generally within regional background ranges previously reported. Laboratory-derived plutonium is readily distinguished from global fallout in on-site waters and sediments. The isotopic ratio data indicate off-site migration of trace levels of Laboratory plutonium in stream sediments to distances approximately two miles downstream of the Laboratory boundary.

  11. Uranium Isotopic Ratio Measurements of U3O8 Reference Materials by Atom Probe Tomography

    SciTech Connect

    Fahey, Albert J.; Perea, Daniel E.; Bartrand, Jonah AG; Arey, Bruce W.; Thevuthasan, Suntharampillai

    2016-01-01

    We report results of measurements of isotopic ratios obtained with atom probe tomography on U3O8 reference materials certified for their isotopic abundances of uranium. The results show good agreement with the certified values. High backgrounds due to tails from adjacent peaks complicate the measurement of the integrated peak areas as well as the fact that only oxides of uranium appear in the spectrum, the most intense of which is doubly charged. In addition, lack of knowledge of other instrumental parameters, such as the dead time, may bias the results. Isotopic ratio measurements can be performed at the nanometer-scale with the expectation of sensible results. The abundance sensitivity and mass resolving power of the mass spectrometer are not sufficient to compete with magnetic-sector instruments but are not far from measurements made by ToF-SIMS of other isotopic systems. The agreement of the major isotope ratios is more than sufficient to distinguish most anthropogenic compositions from natural.

  12. Survey of plutonium and uranium atom ratios and activity levels in Mortandad Canyon

    SciTech Connect

    Gallaher, B.M.; Benjamin, T.M.; Rokop, D.J.; Stoker, A.K.

    1997-09-22

    For more than three decades Mortandad Canyon has been the primary release area of treated liquid radioactive waste from the Los Alamos National Laboratory (Laboratory). In this survey, six water samples and seven stream sediment samples collected in Mortandad Canyon were analyzed by thermal ionization mass spectrometry (TIMS) to determine the plutonium and uranium activity levels and atom ratios. Be measuring the {sup 240}Pu/{sup 239}Pu atom ratios, the Laboratory plutonium component was evaluated relative to that from global fallout. Measurements of the relative abundance of {sup 235}U and {sup 236}U were also used to identify non-natural components. The survey results indicate the Laboratory plutonium and uranium concentrations in waters and sediments decrease relatively rapidly with distance downstream from the major industrial sources. Plutonium concentrations in shallow alluvial groundwater decrease by approximately 1000 fold along a 3000 ft distance. At the Laboratory downstream boundary, total plutonium and uranium concentrations were generally within regional background ranges previously reported. Laboratory derived plutonium is readily distinguished from global fallout in on-site waters and sediments. The isotopic ratio data indicates off-site migration of trace levels of Laboratory plutonium in stream sediments to distances approximately two miles downstream of the Laboratory boundary.

  13. Engine with speed responsive multi-ratio turbocharger drive

    SciTech Connect

    McCreary, Ch.H.

    1984-05-01

    An internal combustion engine, especially of the two stroke cycle diesel type, has a turbocharger with a supplemental mechanical drive for maintaining a minimum speed ratio relative to engine speed, when exhaust energy is insufficient to provide a higher speed, so as to maintain adequate charging air for engine operation throughout the engine speed range. In order to provide more efficient operation during engine operation at idle and in a lower portion of the operating range where a reduced amount of charging air is adequate, a secondary lower speed ratio is provided by the mechanical drive system. A speed responsive clutch is included to disconnect the higher speed primary drive during engine operation in the lower speed range and permit operation at the more efficient secondary speed ratio.

  14. Ratio of Pion Kaon Production in Proton Carbon Interactions

    SciTech Connect

    Lebedev, Andrey V.

    2007-05-01

    The ratio of pion-kaon production by 120 GeV/c protons incident on carbon target is presented. The data was recorded with the Main Injector Particle Production experiment at Fermi National Accelerator Laboratory. Production ratios of K++, K--, K-/K+, and π-+ are measured in 24 bins in longitudinal momentum from 20 to 90 GeV/c and transverse momentum up to 2 GeV/c. The measurement is compared to existing data sets, particle production Monte Carlo results from FLUKA-06, parametrization of proton-beryllium data at 400/450 GeV/c, and ratios measured by the MINOS experiment on the NuMI target.

  15. Starting low compression ratio rotary Wankel diesel engine

    SciTech Connect

    Kamo, R.; Yamada, T.Y.; Hamada, Y.

    1987-01-01

    The single stage rotary Wankel engine is difficult to convert into a diesel version having an adequate compression ratio and a compatible combustion chamber configuration. Past efforts in designing a rotary-type Wankel diesel engine resorted to a two-stage design. Complexity, size, weight, cost and performance penalties were some of the drawbacks of the two-stage Wankel-type diesel designs. This paper presents an approach to a single stage low compression ratio Wankel-type rotary engine. Cold starting of a low compression ratio single stage diesel Wankel becomes the key problem. It was demonstrated that the low compression single stage diesel Wankel type rotary engine can satisfactorily be cold started with a properly designed combustion chamber in the rotor and a variable heat input combustion aid.

  16. Table 6.2 Consumption Ratios of Fuel, 2002

    Energy Information Administration (EIA) (indexed site)

    2 Consumption Ratios of Fuel, 2002;" " Level: National and Regional Data; " " Row: Values of Shipments and Employment Sizes;" " Column: Energy-Consumption Ratios;" " Unit: Varies." ,,,"Consumption" " ",,"Consumption","per Dollar"," " " ","Consumption","per Dollar","of Value","RSE" "Economic","per Employee","of Value

  17. " Column: Energy-Consumption Ratios;"

    Energy Information Administration (EIA) (indexed site)

    3 Consumption Ratios of Fuel, 2002;" " Level: National Data; " " Row: Values of Shipments within NAICS Codes;" " Column: Energy-Consumption Ratios;" " Unit: Varies." " "," ",,,"Consumption"," " " "," ",,"Consumption","per Dollar" " "," ","Consumption","per Dollar","of Value","RSE" "NAICS",,"per

  18. " Column: Energy-Consumption Ratios;"

    Energy Information Administration (EIA) (indexed site)

    3 Consumption Ratios of Fuel, 2006;" " Level: National Data; " " Row: Values of Shipments within NAICS Codes;" " Column: Energy-Consumption Ratios;" " Unit: Varies." ,,,,"Consumption" ,,,"Consumption","per Dollar" ,,"Consumption","per Dollar","of Value" "NAICS",,"per Employee","of Value Added","of Shipments" "Code(a)","Economic

  19. Method of fabricating a high aspect ratio microstructure

    DOEpatents

    Warren, John B.

    2003-05-06

    The present invention is for a method of fabricating a high aspect ratio, freestanding microstructure. The fabrication method modifies the exposure process for SU-8, an negative-acting, ultraviolet-sensitive photoresist used for microfabrication whereby a UV-absorbent glass substrate, chosen for complete absorption of UV radiation at 380 nanometers or less, is coated with a negative photoresist, exposed and developed according to standard practice. This UV absorbent glass enables the fabrication of cylindrical cavities in a negative photoresist microstructures that have aspect ratios of 8:1.

  20. EIA - Natural Gas Pipeline Network - Natural Gas Market Centers...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Market Centers and Hubs About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Natural Gas Market Centers and Hubs in ...

  1. EIA - Natural Gas Pipeline Network - Underground Natural Gas...

    Gasoline and Diesel Fuel Update

    U.S. Underground Natural Gas Storage Facilities Map About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates U.S. ...

  2. EIA - Natural Gas Pipeline Network - Natural Gas Imports/Exports...

    Gasoline and Diesel Fuel Update

    Pipelines About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Natural Gas ImportExport Pipelines As of the close of ...

  3. EIA - Natural Gas Pipeline Network - Natural Gas Import/Export...

    Gasoline and Diesel Fuel Update

    Export Pipelines > ImportExport Locations Map About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates U.S. Natural Gas ...

  4. Natural Gas Regulation | Department of Energy

    Energy Saver

    Natural Gas Regulation Natural Gas Regulation Natural Gas Regulation The Natural Gas Act of 1938, as amended, requires any person who wishes to import andor export natural gas, ...

  5. Check Burner Air to Fuel Ratios; Industrial Technologies Program...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    For the fuels most commonly used by U.S. industry, including natural gas, propane, and fuel oils, approximately one cubic foot of air is required to release about 100 British ...

  6. Natural language modeling

    SciTech Connect

    Sharp, J.K.

    1997-11-01

    This seminar describes a process and methodology that uses structured natural language to enable the construction of precise information requirements directly from users, experts, and managers. The main focus of this natural language approach is to create the precise information requirements and to do it in such a way that the business and technical experts are fully accountable for the results. These requirements can then be implemented using appropriate tools and technology. This requirement set is also a universal learning tool because it has all of the knowledge that is needed to understand a particular process (e.g., expense vouchers, project management, budget reviews, tax, laws, machine function).

  7. EIA - Natural Gas Pipeline Network - Natural Gas Import/Export...

    Gasoline and Diesel Fuel Update

    Pipelines > ImportExport Location List About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Currently, there are 58 ...

  8. Neptune Deepwater Port Natural Gas Liquefied Natural Gas Imports...

    Energy Information Administration (EIA) (indexed site)

    (Dollars per Thousand Cubic Feet) Neptune Deepwater Port Natural Gas Liquefied Natural Gas Imports (price) from Trinidad and Tobago (Dollars per Thousand Cubic Feet) Decade...

  9. Neptune Deepwater Port Natural Gas Liquefied Natural Gas Imports...

    Gasoline and Diesel Fuel Update

    Yemen (Dollars per Thousand Cubic Feet) Neptune Deepwater Port Natural Gas Liquefied Natural Gas Imports (price) from Yemen (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 ...

  10. The four-loop six-gluon NMHV ratio function

    DOE PAGES [OSTI]

    Dixon, Lance J.; von Hippel, Matt; McLeod, Andrew J.

    2016-01-11

    We use the hexagon function bootstrap to compute the ratio function which characterizes the next-to-maximally-helicity-violating (NMHV) six-point amplitude in planar N=4 super-Yang-Mills theory at four loops. A powerful constraint comes from dual superconformal invariance, in the form of a Q¯ differential equation, which heavily constrains the first derivatives of the transcendental functions entering the ratio function. At four loops, it leaves only a 34-parameter space of functions. Constraints from the collinear limits, and from the multi-Regge limit at the leading-logarithmic (LL) and next-to-leading-logarithmic (NLL) order, suffice to fix these parameters and obtain a unique result. We test the result againstmore » multi-Regge predictions at NNLL and N3LL, and against predictions from the operator product expansion involving one and two flux-tube excitations; all cross-checks are satisfied. We study the analytical and numerical behavior of the parity-even and parity-odd parts on various lines and surfaces traversing the three-dimensional space of cross ratios. As part of this program, we characterize all irreducible hexagon functions through weight eight in terms of their coproduct. As a result, we also provide representations of the ratio function in particular kinematic regions in terms of multiple polylogarithms.« less

  11. Color-mass-to-light-ratio relations for disk galaxies

    SciTech Connect

    McGaugh, Stacy S.; Schombert, James M. E-mail: jschombe@uoregon.edu

    2014-11-01

    We combine Spitzer 3.6 μm observations of a sample of disk galaxies spanning over 10 mag in luminosity with optical luminosities and colors to test population synthesis prescriptions for computing stellar mass. Many commonly employed models fail to provide self-consistent results: the stellar mass estimated from the luminosity in one band can differ grossly from that of another band for the same galaxy. Independent models agree closely in the optical (V band), but diverge at longer wavelengths. This effect is particularly pronounced in recent models with substantial contributions from TP-AGB stars. We provide revised color-mass-to-light ratio relations that yield self-consistent stellar masses when applied to real galaxies. The B – V color is a good indicator of the mass-to-light ratio. Some additional information is provided by V – I, but neither it nor J – K{sub s} are particularly useful for constraining the mass-to-light ratio on their own. In the near-infrared, the mass-to-light ratio depends weakly on color, with typical values of 0.6 M {sub ☉}/L {sub ☉} in the K{sub s} band and 0.47 M {sub ☉}/L {sub ☉} at 3.6 μm.

  12. Non-tracking solar concentrator with a high concentration ratio

    DOEpatents

    Hinterberger, Henry

    1977-01-01

    A nontracking solar concentrator with a high concentration ratio is provided. The concentrator includes a plurality of energy absorbers which communicate with a main header by which absorbed heat is removed. Undesired heat flow of those absorbers not being heated by radiant energy at a particular instant is impeded, improving the efficiency of the concentrator.

  13. The Four-loop Six-gluon NMHV Ratio Function

    SciTech Connect

    Dixon, Lance J.; von Hippel, Matt; McLeod, Andrew J.

    2015-09-29

    We use the hexagon function bootstrap to compute the ratio function which characterizes the next-to-maximally-helicity-violating (NMHV) six-point amplitude in planar N = 4 super-Yang-Mills theory at four loops. A powerful constraint comes from dual superconformal invariance, in the form of a Q- differential equation, which heavily constrains the first derivatives of the transcendental functions entering the ratio function. At four loops, it leaves only a 34-parameter space of functions. Constraints from the collinear limits, and from the multi-Regge limit at the leading-logarithmic (LL) and next-to-leading-logarithmic (NLL) order, suffice to fix these parameters and obtain a unique result. We test the result against multi- Regge predictions at NNLL and N3LL, and against predictions from the operator product expansion involving one and two flux-tube excitations; all cross-checks are satisfied. We also study the analytical and numerical behavior of the parity-even and parity-odd parts on various lines and surfaces traversing the three-dimensional space of cross ratios. As part of this program, we characterize all irreducible hexagon functions through weight eight in terms of their coproduct. Furthermore, we provide representations of the ratio function in particular kinematic regions in terms of multiple polylogarithms.

  14. Natural Gas | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Natural Gas Natural Gas Many heavy-duty fleets depend on diesel fuel. But an increasing number of trucking companies are transitioning their vehicles to run on liquefied natural ...

  15. International Natural Gas Workshop Presnetations

    Annual Energy Outlook

    Session 3: Asian Natural Gas Outlook Asian Natural Gas: A Softer Market is coming Robert Smith, FGE Dubai PDF Session 4: LNG Exports and the Future International Natural Gas Market ...

  16. MAGNESIUM ISOTOPE RATIOS IN {omega} CENTAURI RED GIANTS

    SciTech Connect

    Da Costa, G. S.; Norris, John E.; Yong, David

    2013-05-20

    We have used the high-resolution observations obtained at the Anglo-Australian Telescope with Ultra-High Resolution Facility (R {approx} 100,000) and at Gemini-S with b-HROS (R {approx} 150,000) to determine magnesium isotope ratios for seven {omega} Cen red giants that cover a range in iron abundance from [Fe/H] = -1.78 to -0.78 dex, and for two red giants in M4 (NGC 6121). The {omega} Cen stars sample both the ''primordial'' (i.e., O-rich, Na- and Al-poor) and the ''extreme'' (O-depleted, Na- and Al-rich) populations in the cluster. The primordial population stars in both {omega} Cen and M4 show ({sup 25}Mg, {sup 26}Mg)/{sup 24}Mg isotopic ratios that are consistent with those found for the primordial population in other globular clusters with similar [Fe/H] values. The isotopic ratios for the {omega} Cen extreme stars are also consistent with those for extreme population stars in other clusters. The results for the extreme population stars studied indicate that the {sup 26}Mg/{sup 24}Mg ratio is highest at intermediate metallicities ([Fe/H] < -1.4 dex), and for the highest [Al/Fe] values. Further, the relative abundance of {sup 26}Mg in the extreme population stars is notably higher than that of {sup 25}Mg, in contrast to model predictions. The {sup 25}Mg/{sup 24}Mg isotopic ratio in fact does not show any obvious dependence on either [Fe/H] or [Al/Fe] nor, intriguingly, any obvious difference between the primordial and extreme population stars.

  17. Natural gas industry directory

    SciTech Connect

    1999-11-01

    This directory has information on the following: associations and organizations; exploration and production; gas compression; gas processors; gathering and transmission companies; liquefied natural gas; local distribution companies; marketing firms; regulatory agencies; service companies; suppliers and manufacturers; and regional buyer`s guide.

  18. Natural Gas Fuel Basics

    Energy.gov [DOE]

    Only about one-tenth of 1% of all the natural gas in the United States is currently used for transportation fuel. About one-third goes to residential and commercial uses, one-third to industrial uses, and one-third to electric power production.

  19. Natural resources law handbook

    SciTech Connect

    Not Available

    1991-01-01

    This book covers legal topics ranging from ownership-related issues (including disposition, use and management of privately and publicly-owned lands, resources, minerals and waters) to the protection and maintenance of our nation's natural resources. It contains chapters on oil and gas resources, coal resources, and minerals and mining.

  20. Historical Natural Gas Annual 1999

    Annual Energy Outlook

    1999 The Historical Natural Gas Annual contains historical information on supply and disposition of natural gas at the national, regional, and State level as well as prices at...

  1. Nature Energie | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Nature Energie Jump to: navigation, search Name: Nature Energie Place: France Sector: Solar, Wind energy Product: French developer of wind and solar energy projects. References:...

  2. ,"North Carolina Natural Gas Prices"

    Energy Information Administration (EIA) (indexed site)

    Data for" ,"Data 1","North Carolina Natural Gas Prices",8,"Monthly","... 10:49:13 AM" "Back to Contents","Data 1: North Carolina Natural Gas Prices" ...

  3. ,"North Dakota Natural Gas Prices"

    Energy Information Administration (EIA) (indexed site)

    Data for" ,"Data 1","North Dakota Natural Gas Prices",8,"Monthly","4... 10:49:14 AM" "Back to Contents","Data 1: North Dakota Natural Gas Prices" ...

  4. EIA - Natural Gas Analysis Basics

    Annual Energy Outlook

    natural gas industry restructuring in each state, focusing on the residential customer class. About U.S. Natural Gas Pipelines State Energy Profiles What role does liquefied...

  5. EIA - Natural Gas Pipeline Network - Generalized Natural Gas Pipeline

    Energy Information Administration (EIA) (indexed site)

    Capacity Design Schematic Generalized Design Schematic About U.S. Natural Gas Pipelines- Transporting Natural Gas based on data through 2007/2008 with selected updates Generalized Natural Gas Pipeline Capacity Design Schematic Generalized Natural Gas Pipeline Capcity Design Schematic

  6. Precision Measurements of the Proton Elastic Form Factor Ratio

    SciTech Connect

    Douglas Higinbotham

    2010-08-01

    New high precision polarization measurements of the proton elastic form factor ratio in the Q^2 from 0.3 to 0.7 [GeV/c]^2 have been made. These elastic H(e,e'p) measurementswere done in Jefferson Lab's Hall A using 80% longitudinally polarized electrons and recoil polarimetry. For Q^2 greater than 1 [GeV/c]^2, previous polarization data indicated a strong deviation of the form factor ratio from unity which sparked renewed theoretical and experimental interest in how two-photon diagrams have been taken into account. The new high precision data indicate that the deviation from unity, while small, persists even at Q^2 less than 1 [GeV/c]^2.

  7. Method for fabricating high aspect ratio structures in perovskite material

    DOEpatents

    Karapetrov, Goran T.; Kwok, Wai-Kwong; Crabtree, George W.; Iavarone, Maria

    2003-10-28

    A method of fabricating high aspect ratio ceramic structures in which a selected portion of perovskite or perovskite-like crystalline material is exposed to a high energy ion beam for a time sufficient to cause the crystalline material contacted by the ion beam to have substantially parallel columnar defects. Then selected portions of the material having substantially parallel columnar defects are etched leaving material with and without substantially parallel columnar defects in a predetermined shape having high aspect ratios of not less than 2 to 1. Etching is accomplished by optical or PMMA lithography. There is also disclosed a structure of a ceramic which is superconducting at a temperature in the range of from about 10.degree. K. to about 90.degree. K. with substantially parallel columnar defects in which the smallest lateral dimension of the structure is less than about 5 microns, and the thickness of the structure is greater than 2 times the smallest lateral dimension of the structure.

  8. The Atmospheric Muon Charge Ratio at the MINOS Near Detector

    SciTech Connect

    de Jong, J.K.; /IIT, Chicago /Oxford U.

    2011-11-01

    The magnetized MINOS near detector can accurately determine the charge sign of atmospheric muons, this facilitates a measurement of the atmospheric muon charge ratio. To reduce the systematic error associated with geometric bias and acceptance we have combined equal periods of data obtained with opposite magnetic field polarities. We report a charge ratio of 1.2666 {+-} 0.0015(stat.){sub -0.0088}{sup +0.0096}(syst.) at a mean E{sub {mu},0{sup cos}}({theta}) = 63 GeV. This measurement is consistent with the world average but significantly lower than the earlier observation at the MINOS far detector. This increase is shown to be consistent with the hypothesis that a greater fraction of the observed muons arise from kaon decay within the cosmic ray shower.

  9. Selected financial and operating ratios of public power systems

    SciTech Connect

    Choate, S.

    1996-01-01

    This article is a review of the title publication, which is produced by the American Public Power Association. The report is considered to be a valuable management tool to public power systems in evaluating their competitive positions in the dynamic electric utility industry. It examines 22 categories of ratio indicators that can be used by public power systems to assess their performance relative to other utilities of comparable size in the same geographic region. More than 400 utilities are summarized in the report.

  10. Combustion engine variable compression ratio apparatus and method

    DOEpatents

    Lawrence; Keith E.; Strawbridge, Bryan E.; Dutart, Charles H.

    2006-06-06

    An apparatus and method for varying a compression ratio of an engine having a block and a head mounted thereto. The apparatus and method includes a cylinder having a block portion and a head portion, a piston linearly movable in the block portion of the cylinder, a cylinder plug linearly movable in the head portion of the cylinder, and a valve located in the cylinder plug and operable to provide controlled fluid communication with the block portion of the cylinder.

  11. Radar antenna pointing for optimized signal to noise ratio.

    SciTech Connect

    Doerry, Armin Walter; Marquette, Brandeis

    2013-01-01

    The Signal-to-Noise Ratio (SNR) of a radar echo signal will vary across a range swath, due to spherical wavefront spreading, atmospheric attenuation, and antenna beam illumination. The antenna beam illumination will depend on antenna pointing. Calculations of geometry are complicated by the curved earth, and atmospheric refraction. This report investigates optimizing antenna pointing to maximize the minimum SNR across the range swath.

  12. Adjustable ratio roller rocker for internal combustion engines

    SciTech Connect

    Sheehan, K.A.

    1987-04-07

    This patent describes an adjustable ratio roller rocker for internal combustion engines, comprising: a body; a sliding pushrod seat received in the body; a bolt received in the sliding pushrod seat; a pushrod received in the sliding pushrod seat and the sliding pushrod seat includes a threaded opening that receives the bolt; and the rotation of the bolt causes the sliding pushrod seat to traverse a recessed opening in the body.

  13. High Aspect Ratio Metallic Structures for Use as Transparent Electrodes -

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Energy Innovation Portal Photovoltaic Solar Photovoltaic Advanced Materials Advanced Materials Find More Like This Return to Search High Aspect Ratio Metallic Structures for Use as Transparent Electrodes Ames Laboratory Contact AMES About This Technology Technology Marketing SummaryMetallic structures that can be used as transparent electrodes or to enhance the performance of solar cells or LEDs.DescriptionEfforts to develop new energy sources and more energy efficient devices has lead to

  14. The use of carbon stable isotope ratios in drugs characterization

    SciTech Connect

    Magdas, D. A. Cristea, G. Bot, A. Mirel, V.

    2013-11-13

    Isotopic Ratio Mass Spectrometry (IRMS) is an effective toll to be used for drug product authentication. The isotopic composition could be used to assist in the differentiation between batches of drugs and assist in the identification of counterfeit materials on the market. Only two factors affect the isotopic ratios in pharmaceutical components: the isotopic composition of the raw materials and the synthetic processes performed upon them. Counterfeiting of pharmaceutical drugs threatens consumer confidence in drug products companies' economical well-being. In this preliminary study, the analyzed samples consist in two types of commercially available analgesics, which were purchases from Romanian pharmacies. Differences in δ{sup 13}C between batches from −29.7 to −31.6% were observed, demonstrating that this method can be used to differentiate among individual drug batches and subsequently identify counterfeits on the market. On the other hand, carbon isotopic ratios differences among producers were recorded, the variations being between −31.3 to −34.9% for the same type of analgesic, but from different manufactures.

  15. Aspect Ratio Effects in the Driven, Flux-Core Spheromak

    SciTech Connect

    Hooper, E B; Romero-Talam?s, C A; LoDestro, L L; Wood, R D; McLean, H S

    2009-03-02

    Resistive magneto-hydrodynamic simulations are used to evaluate the effects of the aspect ratio, A (length to radius ratio) in a spheromak driven by coaxial helicity injection. The simulations are benchmarked against the Sustained Spheromak Physics Experiment (SSPX) [R. D. Wood, et al., Nucl. Nucl. Fusion 45, 1582 (2005)]. Amplification of the bias ('gun') poloidal flux is fit well by a linear dependence (insensitive to A) on the ratio of gun current and bias flux above a threshold dependent on A. For low flux amplifications in the simulations the n = 1 mode is coherent and the mean-field geometry looks like a tilted spheromak. Because the mode has relatively large amplitude the field lines are open everywhere, allowing helicity penetration. Strongly-driven helicity injection at A {le} 1.4 in simulations generates reconnection events which open the magnetic field lines; this state is characteristic of SSPX. Near the spheromak tilt-mode limit, A {approx} 1.67 for a cylindrical flux conserver, the tilt approaches 90{sup o}; reconnection events are not generated up to the strongest drives simulated. The time-sequence of these events suggests that they are representative of a chaotic process. Implications for spheromak experiments are discussed.

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

    SciTech Connect

    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.

  17. Nature's Greatest Puzzles

    SciTech Connect

    Quigg, Chris; /Fermilab

    2005-02-01

    It is a pleasure to be part of the SLAC Summer Institute again, not simply because it is one of the great traditions in our field, but because this is a moment of great promise for particle physics. I look forward to exploring many opportunities with you over the course of our two weeks together. My first task in talking about Nature's Greatest Puzzles, the title of this year's Summer Institute, is to deconstruct the premise a little bit.

  18. Thermoacoustic natural gas liquefier

    SciTech Connect

    Swift, G.W.

    1997-05-01

    Cryenco and Los Alamos are collaborating to develop a natural-gas-powered natural-gas liquefier that will have no moving parts and require no electrical power. It will have useful efficiency, remarkable reliability, and low cost. The liquefaction of natural gas, which occurs at only 115 Kelvin at atmospheric pressure, has previously required rather sophisticated refrigeration machinery. The 1990 invention of the thermoacoustically driven orifice pulse-tube refrigerator (TA-DOPTR) provides cryogenic refrigeration with no moving parts for the first time. In short, this invention uses acoustic phenomena to produce refrigeration from heat. The required apparatus consists of nothing more than helium-filled heat exchangers and pipes, made of common materials, without exacting tolerances. In the Cryenco-Los Alamos collaboration, the authors are developing a version of this invention suitable for use in the natural-gas industry. The project is known as acoustic liquefier for short. The present program plans call for a two-phase development. Phase 1, with capacity of 500 gallon per day (i.e., approximately 40,000 scfd, requiring a refrigeration power of about 7 kW), is large enough to illuminate all the issues of large-scale acoustic liquefaction without undue cost, and to demonstrate the liquefaction of 60--70% of input gas, while burning 30--40%. Phase 2 will target versions of approximately 10{sup 6} scfd = 10,000 gallon per day capacity. In parallel with both, they continue fundamental research on the technology, directed toward increased efficiency, to build scientific foundations and a patent portfolio for future acoustic liquefiers.

  19. Investigation of Knock limited Compression Ratio of Ethanol Gasoline Blends

    SciTech Connect

    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

  20. NATURAL RESOURCES ASSESSMENT

    SciTech Connect

    D.F. Fenster

    2000-12-11

    The purpose of this report is to summarize the scientific work that was performed to evaluate and assess the occurrence and economic potential of natural resources within the geologic setting of the Yucca Mountain area. The extent of the regional areas of investigation for each commodity differs and those areas are described in more detail in the major subsections of this report. Natural resource assessments have focused on an area defined as the ''conceptual controlled area'' because of the requirements contained in the U.S. Nuclear Regulatory Commission Regulation, 10 CFR Part 60, to define long-term boundaries for potential radionuclide releases. New requirements (proposed 10 CFR Part 63 [Dyer 1999]) have obviated the need for defining such an area. However, for the purposes of this report, the area being discussed, in most cases, is the previously defined ''conceptual controlled area'', now renamed the ''natural resources site study area'' for this report (shown on Figure 1). Resource potential can be difficult to assess because it is dependent upon many factors, including economics (demand, supply, cost), the potential discovery of new uses for resources, or the potential discovery of synthetics to replace natural resource use. The evaluations summarized are based on present-day use and economic potential of the resources. The objective of this report is to summarize the existing reports and information for the Yucca Mountain area on: (1) Metallic mineral and mined energy resources (such as gold, silver, etc., including uranium); (2) Industrial rocks and minerals (such as sand, gravel, building stone, etc.); (3) Hydrocarbons (including oil, natural gas, tar sands, oil shales, and coal); and (4) Geothermal resources. Groundwater is present at the Yucca Mountain site at depths ranging from 500 to 750 m (about 1,600 to 2,500 ft) below the ground surface. Groundwater resources are not discussed in this report, but are planned to be included in the hydrology

  1. Natural radionuclides in groundwaters

    SciTech Connect

    Laul, J.C.

    1990-01-01

    The U-234 and Th-230 radionuclides are highly retarded by factors of 10{sup 4} to 10{sup 5} in basalt groundwater (Hanford) and briny groundwaters from Texas and geothermal brine from the Salton Sea Geothermal Field (SSGF). In basalt groundwaters (low ionic strength), Ra is highly sorbed, while in brines (high ionic strength), Ra is soluble. This is probably because the sorption sites are saturated with Na{sup +} and Cl{sup {minus}} ions and RaCl{sub 2} is soluble in brines. Pb-210 is soluble in SSGF brine, probably as a chloride complex. The U-234/Th-230 ratios in basalt groundwaters and brines from Texas and SSGF are nearly unity, indicating that U is in the +4 state, suggesting a reducing environment for these aquifers. 19 refs., 3 figs.

  2. World Natural Gas Model

    Energy Science and Technology Software Center

    1994-12-01

    RAMSGAS, the Research and Development Analysis Modeling System World Natural Gas Model, was developed to support planning of unconventional gaseoues fuels research and development. The model is a scenario analysis tool that can simulate the penetration of unconventional gas into world markets for oil and gas. Given a set of parameter values, the model estimates the natural gas supply and demand for the world for the period from 1980 to 2030. RAMSGAS is based onmore » a supply/demand framwork and also accounts for the non-renewable nature of gas resources. The model has three fundamental components: a demand module, a wellhead production cost module, and a supply/demand interface module. The demand for gas is a product of total demand for oil and gas in each of 9 demand regions and the gas share. Demand for oil and gas is forecast from the base year of 1980 through 2030 for each demand region, based on energy growth rates and price-induced conservation. For each of 11 conventional and 19 unconventional gas supply regions, wellhead production costs are calculated. To these are added transportation and distribution costs estimates associated with moving gas from the supply region to each of the demand regions and any economic rents. Based on a weighted average of these costs and the world price of oil, fuel shares for gas and oil are computed for each demand region. The gas demand is the gas fuel share multiplied by the total demand for oil plus gas. This demand is then met from the available supply regions in inverse proportion to the cost of gas from each region. The user has almost complete control over the cost estimates for each unconventional gas source in each year and thus can compare contributions from unconventional resources under different cost/price/demand scenarios.« less

  3. High On/Off Ratio Memristive Switching of Manganite/Cuprate Bilayer by Interfacial Magnetoelectricity

    DOE PAGES [OSTI]

    Shen, Xiao; Pennycook, Timothy J.; Hernandez-Martin, David; Pérez, Ana; Puzyrev, Yevgeniy S.; Liu, Yaohua; te Velthuis, Suzanne G. E.; Freeland, John W.; Shafer, Padraic; Zhu, Chenhui; et al

    2016-05-27

    Memristive switching serves as the basis for a new generation of electronic devices. Conventional memristors are two-terminal devices in which the current is turned on and off by redistributing point defects, e.g., vacancies. Memristors based on alternative mechanisms have been explored, but achieving both high on/off ratio and low switching energy, as needed in applications, remains a challenge. This paper reports memristive switching in La0.7Ca0.3MnO3/PrBa2Cu3O7 bilayers with an on/off ratio greater than 103 and results of density functional theory calculations in terms of which it is concluded that the phenomenon is likely the result of a new type of interfacialmore » magnetoelectricity. More specifically, this study shows that an external electric field induces subtle displacements of the interfacial Mn ions, which switches on/off an interfacial magnetic “dead layer”, resulting in memristive behavior for spin-polarized electron transport across the bilayer. The interfacial nature of the switching entails low energy cost, about of a tenth of atto Joule for writing/erasing a “bit”. To conclude, the results indicate new opportunities for manganite/cuprate systems and other transition metal oxide junctions in memristive applications.« less

  4. A minimal sub-Planckian axion inflation model with large tensor-to-scalar ratio

    SciTech Connect

    McDonald, John

    2015-01-01

    We present a minimal axion inflation model which can generate a large tensor-to-scalar ratio while remaining sub-Planckian. The modulus of a complex scalar field ? with a ?|?|{sup 4} potential couples directly to the gauge field of a strongly-coupled sector via a term of the form (|?|/M{sub Pl}){sup m}F F-tilde . This generates a minimum of the potential which is aperiodic in the phase. The resulting inflation model is equivalent to a ?{sup 4/(m+1)} chaotic inflation model. For the natural case of a leading-order portal-like interaction of the form ?{sup }?F F-tilde , the model is equivalent to a ?{sup 4/3} chaotic inflation model and predicts a tensor-to-scalar ratio r = 16/3N = 0.097 and a scalar spectral index n{sub s} = 1 - 5/3N = 0.970. The value of |?| remains sub-Planckian throughout the observable era of inflation, with |?| ?< 0.01M{sub Pl} for N ?< 60 when ? ? 1.

  5. Method for producing thin graphite flakes with large aspect ratios

    DOEpatents

    Bunnell, L. Roy (Kennewick, WA)

    1993-01-01

    A method for making graphite flakes of high aspect ratio by the steps of providing a strong concentrated acid and heating the graphite in the presence of the acid for a time and at a temperature effective to intercalate the acid in the graphite; heating the intercalated graphite at a rate and to a temperature effective to exfoliate the graphite in discrete layers; subjecting the graphite layers to ultrasonic energy, mechanical shear forces, or freezing in an amount effective to separate the layes into discrete flakes.

  6. Masks for high aspect ratio x-ray lithography

    SciTech Connect

    Malek, C.K.; Jackson, K.H.; Bonivert, W.D.; Hruby, J.

    1997-04-01

    Fabrication of very high aspect ratio microstructures, as well as ultra-high precision manufacturing is of increasing interest in a multitude of applications. Fields as diverse as micromechanics, robotics, integrated optics, and sensors benefit from this technology. The scale-length of this spatial regime is between what can be achieved using classical machine tool operations and that which is used in microelectronics. This requires new manufacturing techniques, such as the LIGA process, which combines x-ray lithography, electroforming, and plastic molding.

  7. Florida Natural Gas Processed (Million Cubic Feet)

    Annual Energy Outlook

    Processed (Million Cubic Feet) Florida Natural Gas Processed (Million Cubic Feet) Decade ... Referring Pages: Natural Gas Processed Florida Natural Gas Plant Processing Natural Gas ...

  8. Kansas Natural Gas Processed (Million Cubic Feet)

    Energy Information Administration (EIA) (indexed site)

    Processed (Million Cubic Feet) Kansas Natural Gas Processed (Million Cubic Feet) Decade ... Referring Pages: Natural Gas Processed Kansas Natural Gas Plant Processing Natural Gas ...

  9. Thermoacoustic natural gas liquefier

    SciTech Connect

    Swift, G.W.

    1995-06-01

    In collaboration with Cryenco Inc. and NIST-Boulder, we intend to develop a natural gas-powered natural-gas liquefier which has absolutely no moving parts and requires no electrical power. It will have high efficiency, remarkable reliability, and low cost. Progress on the liquefier to be constructed at Cryenco continues satisfactorily. The thermoacoustic driver is still ahead of the pulse tube refrigerator, because of NIST`s schedule. We completed the thermoacoustics design in the fall of 1994, with Los Alamos providing physics input and checks of all aspects, and Cryenco providing engineering to ASME code, drafting, etc. Completion of this design represents a significant amount of work, especially in view of the many unexpected problems encountered. Meanwhile, Cryenco and NIST have almost completed the design of the pulse tube refrigerator. At Los Alamos, we have assembled a half-size scale model of the thermoacoustic portion of the 500 gal/day TANGL. This scale model will enable easy experimentation in harmonic suppression techniques, new stack geometries, new heat-exchanger geometries, resonator coiling, and other areas. As of March 1995, the scale model is complete and we are performing routine debugging tests and modifications.

  10. Neptune Deepwater Port Natural Gas Liquefied Natural Gas Imports...

    Energy Information Administration (EIA) (indexed site)

    (Dollars per Thousand Cubic Feet) Neptune Deepwater Port Natural Gas Liquefied Natural Gas Imports (price) (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3...

  11. Natural gas monthly, April 1999

    SciTech Connect

    1999-05-06

    The Natural Gas Monthly (NGM) highlights activities, events, and analyses of interest to public and private sector organizations associated with the natural gas industry. Volume and price data are presented each month for natural gas production, distribution, consumption, and interstate pipeline activities. Producer-related activities and underground storage data are also reported. From time to time, the NGM features articles designed to assist readers in using and interpreting natural gas information. There are two feature articles in this issue: Natural gas 1998: Issues and trends, Executive summary; and Special report: Natural gas 1998: A preliminary summary. 6 figs., 28 tabs.

  12. Thermodynamic analysis of cascade microcryocoolers with low pressure ratios

    SciTech Connect

    Radebaugh, Ray

    2014-01-29

    The vapor-compression cycle for refrigeration near ambient temperature achieves high efficiency because the isenthalpic expansion of the condensed liquid is a rather efficient process. However, temperatures are limited to about 200 K with a single-stage system. Temperatures down to 77 K are possible with many stages. In the case of microcryocoolers using microcompressors, pressure ratios are usually limited to about 6 or less. As a result, even more stages are required to reach 77 K. If the microcompressors can be fabricated with low-cost wafer-level techniques, then the use of many stages with separate compressors may become a viable option for achieving temperatures of 77 K with high efficiency. We analyze the ideal thermodynamic efficiency of a cascade Joule-Thomson system for various temperatures down to 77 K and with low pressure ratios. About nine stages are required for 77 K, but fewer stages are also analyzed for operation at higher temperatures. For 77 K, an ideal second-law efficiency of 83 % of Carnot is possible with perfect recuperative heat exchangers and 65 % of Carnot is possible with no recuperative heat exchangers. The results are compared with calculated efficiencies in mixed-refrigerant cryocoolers over the range of 77 K to 200 K. Refrigeration at intermediate temperatures is also available. The use of single-component fluids in each of the stages is expected to eliminate the problem of pulsating flow and temperature oscillations experienced in microcryocoolers using mixed refrigerants.

  13. Tower Water-Vapor Mixing Ratio (Technical Report) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Tower Water-Vapor Mixing Ratio Citation Details In-Document Search Title: Tower Water-Vapor Mixing Ratio The purpose of the Tower Water-Vapor Mixing Ratio (TWRMR) value-added ...

  14. Concentrations and activity ratios of uranium isotopes in groundwater from Donana National Park, South of Spain

    SciTech Connect

    Bolivar, J. P.; Olias, M.; Gonzalez-Garcia, F.; Garcia-Tenorio, R.

    2008-08-07

    The levels and distribution of natural radionuclides in groundwaters from the unconfined Almonte-Marismas aquifer, upon which Donana National Park is located, have been analysed. Most sampled points were multiple piezometers trying to study the vertical distribution of the hydrogeochemical characteristics in the aquifer. Temperature, pH, electrical conductivity, dissolved oxygen and redox potential were determined in the field. A large number of parameters, physico-chemical properties, major and minor ions, trace elements and natural radionuclides (U-isotopes, Th-isotopes, Ra-isotopes and {sup 210}Po), were also analysed. In the southern zone, where aeolian sands crop out, water composition is of the sodium chloride type, and the lower U-isotopes concentrations have been obtained. As water circulates through the aquifer, bicarbonate and calcium concentrations increase slightly, and higher radionuclides concentrations were measured. Finally, we have demonstrated that {sup 234}U/{sup 238}U activity ratios can be used as markers of the type of groundwater and bedrock, as it has been the case for old waters with marine origin confined by a marsh in the south-east part of aquifer.

  15. Natural Gas Exports from Iran

    Reports and Publications

    2012-01-01

    This assessment of the natural gas sector in Iran, with a focus on Irans natural gas exports, was prepared pursuant to section 505 (a) of the Iran Threat Reduction and Syria Human Rights Act of 2012 (Public Law No: 112-158). As requested, it includes: (1) an assessment of exports of natural gas from Iran; (2) an identification of the countries that purchase the most natural gas from Iran; (3) an assessment of alternative supplies of natural gas available to those countries; (4) an assessment of the impact a reduction in exports of natural gas from Iran would have on global natural gas supplies and the price of natural gas, especially in countries identified under number (2); and (5) such other information as the Administrator considers appropriate.

  16. Natural Gas Exports from Iran

    Reports and Publications

    2012-01-01

    This assessment of the natural gas sector in Iran, with a focus on Iran’s natural gas exports, was prepared pursuant to section 505 (a) of the Iran Threat Reduction and Syria Human Rights Act of 2012 (Public Law No: 112-158). As requested, it includes: (1) an assessment of exports of natural gas from Iran; (2) an identification of the countries that purchase the most natural gas from Iran; (3) an assessment of alternative supplies of natural gas available to those countries; (4) an assessment of the impact a reduction in exports of natural gas from Iran would have on global natural gas supplies and the price of natural gas, especially in countries identified under number (2); and (5) such other information as the Administrator considers appropriate.

  17. ,"North Dakota Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...3","N3010ND3","N3020ND3","N3035ND3","NA1570SND3","N3045ND3" "Date","North Dakota Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","North Dakota Natural Gas Imports ...

  18. Recent Natural Gas Market Data

    Gasoline and Diesel Fuel Update

    Recent Natural Gas Summary Data The latest monthly market-related data are available in selected tables from the most recent release of the Natural Gas Monthly. Supply and ...

  19. Natural Gas | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fossil Natural Gas Natural Gas September 15, 2016 DOE Announces 3.8 Million Investment in New Methane Gas Hydrate Research The U.S. Department of Energy (DOE) has announced the ...

  20. ,"West Virginia Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...","N3010WV3","N3020WV3","N3035WV3","NA1570SWV3","N3045WV3" "Date","West Virginia Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","West Virginia Natural Gas Pipeline ...

  1. Natural Gas | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    133. Lower 48 Natural Gas Production and Wellhead Prices by Supply Region Table 134. Oil and Gas End-of-Year Reserves and Annual Reserve Additions Table 135. Natural Gas...

  2. ,"New Jersey Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...J3","N3035NJ3","N3045NJ3" "Date","Natural Gas Citygate Price in New Jersey (Dollars per Thousand Cubic Feet)","New Jersey Price of Natural Gas Delivered to Residential Consumers ...

  3. ,"New York Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...NY3","N3035NY3","N3045NY3" "Date","Natural Gas Citygate Price in New York (Dollars per Thousand Cubic Feet)","New York Price of Natural Gas Delivered to Residential Consumers ...

  4. ,"New Mexico Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...M3","N3035NM3","N3045NM3" "Date","Natural Gas Citygate Price in New Mexico (Dollars per Thousand Cubic Feet)","New Mexico Price of Natural Gas Delivered to Residential Consumers ...

  5. ,"North Carolina Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...,"N3035NC3","N3045NC3" "Date","Natural Gas Citygate Price in North Carolina (Dollars per Thousand Cubic Feet)","North Carolina Price of Natural Gas Delivered to Residential ...

  6. ,"North Dakota Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...","N3035ND3","N3045ND3" "Date","Natural Gas Citygate Price in North Dakota (Dollars per Thousand Cubic Feet)","North Dakota Price of Natural Gas Delivered to Residential Consumers ...

  7. ,"North Dakota Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...D3","N3035ND3","NA1570SND3","N3045ND3" "Date","North Dakota Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","North Dakota Natural Gas Imports Price (Dollars per ...

  8. ,"New Hampshire Natural Gas Summary"

    Energy Information Administration (EIA) (indexed site)

    ...","N3010NH3","N3020NH3","N3035NH3","N3045NH3" "Date","Natural Gas Citygate Price in New Hampshire (Dollars per Thousand Cubic Feet)","New Hampshire Price of Natural Gas Delivered ...

  9. ,"New Mexico Natural Gas Prices"

    Energy Information Administration (EIA) (indexed site)

    Data for" ,"Data 1","New Mexico Natural Gas Prices",8,"Monthly","4... AM" "Back to Contents","Data 1: New Mexico Natural Gas Prices" "Sourcekey","N3050NM3...

  10. D-T gamma-to-neutron branching ratio determined from inertial confinement fusion plasmas

    SciTech Connect

    Kim, Y.; Mack, J. M.; Herrmann, H. W.; Young, C. S.; Hale, G. M.; Caldwell, S.; Hoffman, N. M.; Evans, S. C.; Sedillo, T. J.; McEvoy, A.; Langenbrunner, J.; Hsu, H. H.; Huff, M. A.; Batha, S.; Horsfield, C. J.; Rubery, M. S.; Garbett, W. J.; Stoeffl, W.; Grafil, E.; Bernstein, L.; and others

    2012-05-15

    A new deuterium-tritium (D-T) fusion gamma-to-neutron branching ratio [{sup 3}H(d,{gamma}){sup 5}He/{sup 3}H(d,n){sup 4}He] value of (4.2 {+-} 2.0) Multiplication-Sign 10{sup -5} was recently reported by this group [Y. Kim et al. Phys. Rev. C (submitted)]. This measurement, conducted at the OMEGA laser facility located at the University of Rochester, was made for the first time using inertial confinement fusion (ICF) plasmas. Neutron-induced backgrounds are significantly reduced in these experiments as compared to traditional beam-target accelerator-based experiments due to the short pulse nature of ICF implosions and the use of gas Cherenkov {gamma}-ray detectors with fast temporal responses and inherent energy thresholds. It is expected that this ICF-based measurement will help resolve the large and long-standing inconsistencies in previously reported accelerator-based values, which vary by a factor of approximately 30. The reported value at ICF conditions was determined by averaging the results of two methods: (1) a direct measurement of ICF D-T {gamma}-ray and neutron emissions using absolutely calibrated detectors and (2) a separate cross-calibration against the better known D-{sup 3}He gamma-to-proton branching ratio [{sup 3}He(d, {gamma}){sup 5}Li/{sup 3}He(d,p){sup 4}He]. Here we include a detailed explanation of these results, and introduce as a corroborative method an in-situ{gamma}-ray detector calibration using neutron-induced {gamma}-rays. Also, by extending the established techniques to two additional series of implosions with significantly different ion temperatures, we test the branching ratio dependence on ion temperature. The data show a D-T branching ratio is nearly constant over the temperature range 2-9 keV. These studies motivate further investigation into the {sup 5}He and {sup 5}Li systems resulting from D-T and D-{sup 3}He fusion, respectively, and result in improved ICF {gamma}-ray reaction history diagnosis at the National Ignition

  11. Natural gas monthly, June 1993

    SciTech Connect

    Not Available

    1993-06-22

    The Natural Gas Monthly (NGM) highlights activities, events, and analyses of interest to public and private sector organizations associated with the natural gas industry. Volume and price data are presented each month for natural gas production, distribution, consumption, and interstate pipeline activities. Producer related activities and underground storage data are also reported. From time to time, the NGM features articles designed to assist readers in using and interpreting natural gas information.

  12. Natural gas monthly, July 1993

    SciTech Connect

    Not Available

    1993-07-27

    The Natural Gas Monthly NGM highlights activities, events, and analyses of interest to public and private sector organizations associated with the natural gas industry. Volume and price data are presented each month for natural gas production, distribution, consumption, and interstate pipeline activities. Producer-related activities and underground storage data are also reported. From time to time, the NGM features articles designed to assist readers in using and interpreting natural gas information.

  13. Natural gas monthly, September 1995

    SciTech Connect

    1995-09-27

    The (NGM) Natural Gas Monthly highlights activities, events, and analyses of interest to public and private sector organizations associated with the natural gas industry. Volume and price data are presented each month for natural gas production, distribution, consumption, and interstate pipeline activities. Producer-related activities and underground storage data are also reported. From time to time, the NGM features articles designed to assist readers in using and interpreting natural gas information.

  14. Natural gas monthly, April 1995

    SciTech Connect

    1995-04-27

    The Natural Gas Monthly highlights activities, events, and analyses of interest to public and private sector organizations associated with the natural gas industry. Volume and price data are presented each month for natural gas production, distribution, consumption, and interstate pipeline activities. Producer-related activities and underground storage data are also reported. From time to time, the NGM features articles designed to assist readers in using and interpreting natural gas information. 6 figs., 31 tabs.

  15. Natural gas monthly: September 1996

    SciTech Connect

    1996-09-01

    The Natural Gas Monthly highlights activities, events, and analyses of interest to public and private sector organizations associated with the natural gas industry. Volume and price data are presented each month for natural gas production, distribution, consumption, and interstate pipeline activities. Producer-related activities and underground storage data are also reported. From time to time, the NGM features articles designed to assist readers in using and interpreting natural gas information. 6 figs., 24 tabs.

  16. Natural gas monthly, July 1996

    SciTech Connect

    1996-07-01

    This document presents information pertaining to the natural gas industry. Data are included on production, consumption, distribution, and pipeline activities.

  17. US crude oil, natural gas, and natural gas liquids reserves

    SciTech Connect

    Not Available

    1990-10-05

    This report presents estimates of proved reserves of crude oil, natural gas, and natural gas liquids as of December 31, 1989, and production volumes for the year 1989 for the total United States and for selected states and state sub-divisions. Estimates are presented for the following four categories of natural gas: total gas (wet after lease separation), its two major components (nonassociated and associated-dissolved gas), and total dry gas (wet gas adjusted for the removal of liquids at natural gas processing plants). In addition, two components of natural gas liquids, lease condensate and natural gas plant liquids, have their reserves and production reported separately. Also included is information on indicated additional crude oil reserves and crude oil, natural gas, and lease condensate reserves in nonproducing reservoirs. 28 refs., 9 figs., 15 tabs.

  18. THE ATOMIC WEIGHTS COMMISSION AND ISOTOPIC ABUNDANCE RATIO DETERMINATIONS.

    SciTech Connect

    HOLDEN, N.E.

    2005-08-07

    Following Thomson's discovery of stable isotopes in non-radioactive chemical elements, the derivation of atomic weight values from mass spectrometric measurements of isotopic abundance ratios moved very slowly. Forty years later, only 3 1/2 % of the recommended values were based on mass spectrometric measurements and only 38% in the first half century. It might be noted that two chemical elements (tellurium and mercury) are still based on chemical measurements, where the atomic weight value calculated from the relative isotopic abundance measurement either agrees with the value from the chemical measurement or the atomic weight value calculated from the relative isotopic abundance measurement falls within the uncertainty of the chemical measurement of the atomic weight. Of the 19 chemical elements, whose atomic weight is based on non-corrected relative isotopic abundance measurements, five of these are two isotope systems (indium, iridium, lanthanum, lutetium and tantalum) and one is a three-isotope system (oxygen).

  19. Tuning giant anomalous Hall resistance ratio in perpendicular Hall balance

    SciTech Connect

    Zhang, J. Y.; Yang, G.; Wang, S. G. E-mail: ghyu@mater.ustb.edu.cn; Liu, J. L.; Wang, R. M.; Amsellem, E.; Kohn, A.; Yu, G. H. E-mail: ghyu@mater.ustb.edu.cn

    2015-04-13

    Anomalous Hall effect at room temperature in perpendicular Hall balance with a core structure of [Pt/Co]{sub 4}/NiO/[Co/Pt]{sub 4} has been tuned by functional CoO layers, where [Pt/Co]{sub 4} multilayers exhibit perpendicular magnetic anisotropy. A giant Hall resistance ratio up to 69 900% and saturation Hall resistance (R{sub S}{sup P}) up to 2590 mΩ were obtained in CoO/[Pt/Co]{sub 4}/NiO/[Co/Pt]{sub 4}/CoO system, which is 302% and 146% larger than that in the structure without CoO layers, respectively. Transmission electron microscopy shows highly textured [Co/Pt]{sub 4} multilayers and oxide layers with local epitaxial relations, indicating that the crystallographic structure has significant influence on spin dependent transport properties.

  20. Measurement of the K+ --> pi+ nu nu branching ratio

    SciTech Connect

    Adler, S.; Anisimovsky, V.V.; Aoki, M.; Ardebili, M.; Artamonov, A.V.; Atiya, M.; Bassalleck, B.; Bazarko, A.O.; Bhuyan, B.; Blackmore, E.W.; Bryman, D.A.; /British Columbia U. /Tsinghua U., Beijing /TRIUMF

    2008-03-01

    Experiment E949 at Brookhaven National Laboratory studied the rare decay K{sup +}-->pi{sup +} nu{ovr {nu}} and other processes with an exposure of 1.77 x 10{sup 12} k{sup +}'s. The data were analyzed using a blind analysis technique yielding one candidate event with an estimated background of 0.30 {+-} 0.03 events. Combining this result with the observation of two candidate events by the predecessor experiment E787 gave the branching ratio B(K{sup +}-->pi{sup +} nu{ovr {nu}}) = (1.47{sub -0.89}{sup +1.30}) x 10{sup -10}, consistent with the standard model prediction of (0.74 {+-} 0.20) x 10{sup -10}. This is a more detailed report of results previously published [V.V. Anisimovsky et al., Phys. Rev. Lett. 93, 031801 (2004)].