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Sample records for browns ferry nuclear

  1. Alabama Nuclear Profile - Browns Ferry

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

    Browns Ferry" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration date" 1,"1,101","8,072",83.7,"BWR","application/vnd.ms-excel","application/vnd.ms-excel"

  2. ATWS analysis for Browns Ferry Nuclear Plant Unit 1

    SciTech Connect (OSTI)

    Dallman, R.J.; Jouse, W.C.

    1985-01-01

    Analyses of postulated Anticipated Transients Without Scram (ATWS) were performed at the Idaho National Engineering Laboratory (INEL). The Browns Ferry Nuclear Plant Unit 1 (BFNP1) was selected as the subject of this work because of the cooperation of the Tennessee Valley Authority (TVA). The work is part of the Severe Accident Sequence Analysis (SASA) Program of the US Nuclear Regulatory Commission (NRC). A Main Steamline Isolation Valve (MSIV) closure served as the transient initiator for these analyses, which proceeded a complete failure to scram. Results from the analyses indicate that operator mitigative actions are required to prevent overpressurization of the primary containment. Uncertainties remain concerning the effectiveness of key mitigative actions. The effectiveness of level control as a power reduction procedure is limited. Power level resulting from level control only reduce the Pressure Suppression Pool (PSP) heatup rate from 6 to 4F/min.

  3. BWR ATWS simulations for Browns Ferry Nuclear Plant Unit 1

    SciTech Connect (OSTI)

    Dallman, R.J.

    1984-01-01

    Under auspices of the US Nuclear Regulatory Commission, simulations of anticipated transients without scram (ATWS) in a boiling water reactor are being performed. A methodology has been developed to study the ATWS, and deterministic analyses have been conducted. Results are presented for one of the most probable (albeit hypothetical) sequences leading to core and containment damage. Areas presenting calculational uncertainties are identified, and requirements for their resolution are proposed.

  4. Annual radiological environmental operating report: Browns Ferry Nuclear Plant, 1992. Operations Services/Technical Programs

    SciTech Connect (OSTI)

    Not Available

    1993-04-01

    This report describes the environmental radiological monitoring program conducted by TVA in the vicinity of Browns Ferry Nuclear Plant (BFN) in 1992. The program includes the collection of samples from the environment and the determination of the concentrations of radioactive materials in the samples. Samples are taken from stations in the general area of the plant and from areas not influenced by plant operations. Station locations are selected after careful consideration of the weather patterns and projected radiation doses to the various areas around the plant. Material sampled includes air, water, milk, foods, vegetation, soil, fish, sediment, and direct radiation levels. Results from stations near the plant are compared with concentrations from control stations and with preoperational measurements to determine potential impacts of plant operations. Small amounts of Co-60 and Cs-134 were found in sediment samples downstream from the plant. This activity in stream sediment would result in no measurable increase over background in the dose to the general public.

  5. Severe Accident Sequence Analysis Program: Anticipated transient without scram simulations for Browns Ferry Nuclear Plant Unit 1

    SciTech Connect (OSTI)

    Dallman, R J; Gottula, R C; Holcomb, E E; Jouse, W C; Wagoner, S R; Wheatley, P D

    1987-05-01

    An analysis of five anticipated transients without scram (ATWS) was conducted at the Idaho National Engineering Laboratory (INEL). The five detailed deterministic simulations of postulated ATWS sequences were initiated from a main steamline isolation valve (MSIV) closure. The subject of the analysis was the Browns Ferry Nuclear Plant Unit 1, a boiling water reactor (BWR) of the BWR/4 product line with a Mark I containment. The simulations yielded insights to the possible consequences resulting from a MSIV closure ATWS. An evaluation of the effects of plant safety systems and operator actions on accident progression and mitigation is presented.

  6. ATWS at Browns Ferry Unit One - accident sequence analysis

    SciTech Connect (OSTI)

    Harrington, R.M.; Hodge, S.A.

    1984-07-01

    This study describes the predicted response of Unit One at the Browns Ferry Nuclear Plant to a postulated complete failure to scram following a transient occurrence that has caused closure of all Main Steam Isolation Valves (MSIVs). This hypothetical event constitutes the most severe example of the type of accident classified as Anticipated Transient Without Scram (ATWS). Without the automatic control rod insertion provided by scram, the void coefficient of reactivity and the mechanisms by which voids are formed in the moderator/coolant play a dominant role in the progression of the accident. Actions taken by the operator greatly influence the quantity of voids in the coolant and the effect is analyzed in this report. The progression of the accident sequence under existing and under recommended procedures is discussed. For the extremely unlikely cases in which equipment failure and wrongful operator actions might lead to severe core damage, the sequence of emergency action levels and the associated timing of events are presented.

  7. RAMONA-3B application to Browns Ferry ATWS

    SciTech Connect (OSTI)

    Slovik, G.C.; Neymotin, L.Y.; Saha, P.

    1985-01-01

    The Anticipated Transient Without Scram (ATWS) is known to be a dominant accident sequence for possible core melt in a Boiling Water Reactor (BWR). A recent Probabilistic Risk Assessment (PRA) analysis for the Browns Ferry nuclear power plant indicates that ATWS is the second most dominant transient for core melt in BWR/4 with Mark I containment. The most dominant sequence being the failure of long term decay heat removal function of the Residual Heat Removal (RHR) system. Of all the various ATWS scenarios, the Main Steam Isolation Valve (MSIV) closure ATWS sequence was chosen for present analysis because of its relatively high frequency of occurrence and its challenge to the residual heat removal system and containment integrity. The objective of this paper is to discuss four MSIV closure ATWS calculations using the RAMONA-3B code. The paper is a summary of a report being prepared for the USNRC Severe Accident Sequence Analysis (SASA) program which should be referred to for details. 10 refs., 20 figs., 3 tabs.

  8. Alabama Nuclear Profile - Browns Ferry

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

    expiration date" 1,"1,101","8,072",83.7,"BWR","applicationvnd.ms-excel","applicationvnd.ms-excel" 2,"1,104","8,843",91.5,"BWR","applicationvnd.ms-excel","application...

  9. RAMONA-3B application to Browns Ferry ATWS

    SciTech Connect (OSTI)

    Slovik, G.C.; Neymotin, L.; Cazzoli, E.; Saha, P.

    1984-01-01

    This paper discusses two preliminary MSIV clsoure ATWS calculations done using the RAMONA-3B code and the work being done to create the necessary cross section sets for the Browns Ferry Unit 1 reactor. The RAMONA-3B code employs a three-dimensional neutron kinetics model coupled with one-dimensional, four equation, nonhomogeneous, nonequilibrium thermal hydraulics. To be compatible with 3-D neutron kinetics, the code uses parallel coolant channels in the core. It also includes a boron transport model and all necessary BWR components such as jet pump, recirculation pump, steam separator, steamline with safety and relief valves, main steam isolation valve, turbine stop valve, and turbine bypass valve. A summary of RAMONA-3B neutron kinetics and thermal hydraulics models is presented in the Appendix.

  10. Applications of the RELAP5 code to the station blackout transients at the Browns Ferry Unit One Plant

    SciTech Connect (OSTI)

    Schultz, R.R.; Wagoner, S.R.

    1983-01-01

    As a part of the charter of the Severe Accident Sequence Analysis (SASA) Program, station blackout transients have been analyzed using a RELAP5 model of the Browns Ferry Unit 1 Plant. The task was conducted as a partial fulfillment of the needs of the US Nuclear Regulatory Commission in examining the Unresolved Safety Issue A-44: Station Blackout (1) the station blackout transients were examined (a) to define the equipment needed to maintain a well cooled core, (b) to determine when core uncovery would occur given equipment failure, and (c) to characterize the behavior of the vessel thermal-hydraulics during the station blackout transients (in part as the plant operator would see it). These items are discussed in the paper. Conclusions and observations specific to the station blackout are presented.

  11. Comparison of MELCOR and SCDAP/RELAP5 results for a low-pressure, short-term station blackout at Browns Ferry

    SciTech Connect (OSTI)

    Carbajo, J.J. [Oak Ridge National Lab., TN (United States)

    1995-12-31

    This study compares results obtained with two U.S. Nuclear Regulatory Commission (NRC)-sponsored codes, MELCOR version 1.8.3 (1.8PQ) and SCDAP/RELAP5 Mod3.1 release C, for the same transient - a low-pressure, short-term station blackout accident at the Browns Ferry nuclear plant. This work is part of MELCOR assessment activities to compare core damage progression calculations of MELCOR against SCDAP/RELAP5 since the two codes model core damage progression very differently.

  12. 1,"Browns Ferry","Nuclear","Tennessee Valley Authority",3309...

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

    Power Co",2574.5 4,"E C Gaston","Coal","Alabama Power Co",1878 5,"H Allen Franklin Combined Cycle","Natural gas","Southern Power Co",1815 6,"Joseph M ...

  13. Fermilab | Tritium at Fermilab | Ferry Creek Aerial View

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

    Ferry Creek Aerial View Ferry Creek Aerial View

  14. Paynes Ferry Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Paynes Ferry Wind Farm Jump to: navigation, search Name Paynes Ferry Wind Farm Facility Paynes Ferry Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility...

  15. Ferris State University | Open Energy Information

    Open Energy Info (EERE)

    Ferris State University Jump to: navigation, search Name: Ferris State University Place: Big Rapids, MI Website: www.ferrisstateuniversity.com References: Ferris State...

  16. Ferry Barge | Y-12 National Security Complex

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

    Ferry Barge Ferry Barge Before the Manhattan Project, modern bridges were very far into the future for the Oak Ridge area. They came more quickly with the project...

  17. EERE Success Story-Washington: State Ferries Run Cleaner With...

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

    State Ferries Run Cleaner With Biodiesel EERE Success Story-Washington: State Ferries Run Cleaner With Biodiesel April 18, 2013 - 12:00am Addthis Washington State Ferries, owned ...

  18. EA-1973: Kootenai River Restoration at Bonners Ferry, Boundary...

    Energy Savers [EERE]

    73: Kootenai River Restoration at Bonners Ferry, Boundary County, Idaho EA-1973: Kootenai River Restoration at Bonners Ferry, Boundary County, Idaho Summary Bonneville Power...

  19. Ferris, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    is a stub. You can help OpenEI by expanding it. Ferris is a city in Dallas County and Ellis County, Texas. It falls under Texas's 30th congressional district and Texas's 6th...

  20. Alabama Nuclear Profile - Power Plants

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

    nuclear power plants, summer capacity and net generation, 2010" "Plant name/total reactors","Summer capacity (mw)","Net generation (thousand mwh)","Share of State nuclear net generation (percent)","Owner" "Browns Ferry Unit 1, Unit 2, Unit 3","3,309","24,771",65.3,"Tennessee Valley Authority" "Joseph M Farley Unit 1, Unit 2","1,734","13,170",34.7,"Alabama Power

  1. PUD No 1 of Ferry County | Open Energy Information

    Open Energy Info (EERE)

    Ferry County Jump to: navigation, search Name: PUD No 1 of Ferry County Place: Washington Phone Number: (509) 775-3325 Website: fcpud.com Outage Hotline: (509) 775-3849...

  2. Washington: State Ferries Run Cleaner With Biodiesel | Department...

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

    Addthis Related Articles Auto and passenger ferries operated by the Washington State ... SEP Success Story: Washington State Becomes Largest Public Consumer of Biodiesel Auto and ...

  3. EERE Success Story—Washington: State Ferries Run Cleaner With Biodiesel

    Broader source: Energy.gov [DOE]

    Washington State Ferries now uses blended biodiesel to run its ferries, preventing the emission of more than 29,000 metric tons of carbon dioxide per year.

  4. City of Bonners Ferry, Idaho (Utility Company) | Open Energy...

    Open Energy Info (EERE)

    index. Facebook: https:www.facebook.compagesCity-of-Bonners-Ferry-City-Hall-and-Utility-Offices Outage Hotline: 1-800-626-4950 References: EIA Form EIA-861 Final...

  5. Nuclear factor-?B is a common upstream signal for growth differentiation factor-5 expression in brown adipocytes exposed to pro-inflammatory cytokines and palmitate

    SciTech Connect (OSTI)

    Hinoi, Eiichi; Iezaki, Takashi; Ozaki, Kakeru; Yoneda, Yukio

    2014-10-03

    Highlights: GDF5 expression is up-regulated by IL-1?, TNF-? and palmitate in brown pre-adipocytes. NF-?B stimulates promoter activity and expression of GDF5 in brown pre-adipocytes. Recruitment of NF-?B to the GDF5 promoter is facilitated in BAT from ob/ob mice. An NF-?B inhibitor prevents upregulation of GDF5 expression in brown pre-adipocytes. - Abstract: We have previously demonstrated that genetic and acquired obesity similarly led to drastic upregulation in brown adipose tissue (BAT), rather than white adipose tissue, of expression of both mRNA and corresponding protein for the bone morphogenic protein/growth differentiation factor (GDF) member GDF5 capable of promoting brown adipogenesis. In this study, we evaluated expression profiles of GDF5 in cultured murine brown pre-adipocytes exposed to pro-inflammatory cytokines and free fatty acids (FFAs), which are all shown to play a role in the pathogenesis of obesity. Both interleukin-1? (IL-1?) and tumor necrosis factor-? (TNF-?) were effective in up-regulating GDF5 expression in a concentration-dependent manner, while similar upregulation was seen in cells exposed to the saturated FFA palmitate, but not to the unsaturated FFA oleate. In silico analysis revealed existence of the putative nuclear factor-?B (NF-?B) binding site in the 5?-flanking region of mouse GDF5, whereas introduction of NF-?B subunits drastically facilitated both promoter activity and expression of GDF5 in brown pre-adipocytes. Chromatin immunoprecipitation analysis confirmed significant facilitation of the recruitment of NF-?B to the GDF5 promoter in lysed extracts of BAT from leptin-deficient ob/ob obese mice. Upregulation o GDF5 expression was invariably inhibited by an NF-?B inhibitor in cultured brown pre-adipocytes exposed to IL-1?, TNF-? and palmitate. These results suggest that obesity leads to upregulation of GDF5 expression responsible for the promotion of brown adipogenesis through a mechanism relevant to activation of the

  6. RAMONA-3B calculations for Browns Ferry ATWS (Anticipated Transient Without Scram) study

    SciTech Connect (OSTI)

    Saha, P; Slovik, G C; Neymotin, L Y

    1987-02-01

    Several aspects of the Anticipated Transient Without Scram (ATWS) initiated by an inadvertent closure of all Main Steam Isolation Valves (MSIV) in a typical BWR/4 are analyzed in the report. The analysis is performed using the Brookhaven National Laboratory code, RAMONA-3B, which employs a three-dimensional neutron kinetics model coupled with a parallel-channel thermal hydraulics in representing a Boiling Water Reactor (BWR) Core. Four different transient scenarios have been investigated: (a) downcomer water level and reactor pressure control, (b) manual control rod insertion transient, (c) high pressure boil-off, and (d) recirculation pump trip failure. Results of these calculations should provide better understanding of mitigative effects of operator actions during ATWS, thus helping in the development of adequate Emergency Procedure Guidelines (EPG) required for the BWR plant safety. A few unresolved questions subject to future investigations are also discussed.

  7. Microsoft Word - BNRS_FERRY_3D_DEA_DRAFT_EA

    Energy Savers [EERE]

    protecting spawning. Kootenai River Habitat Restoration at Bonners Ferry Project Draft Environmental Assessment 10 * Suggestion to create community support through a public...

  8. Final Surplus Plutonium Disposition Supplemental Environmental...

    National Nuclear Security Administration (NNSA)

    ... reactors at the Sequoyah and Browns Ferry Nuclear Plants of TVA, and at generic reactors. ... for use in domestic commercial nuclear power reactors to generate electricity, as well ...

  9. Fermilab Today | Brown University Profile

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

    Brown University April 29, 2010 NAME: Brown University HOME TOWN: Providence, Rhode Island MASCOT: Bruno the Bear SCHOOL COLORS: Seal brown and cardinal red PARTICLE PHYSICS...

  10. Reduction of Emissions from a High Speed Ferry | Department of Energy

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

    Emissions from a High Speed Ferry Reduction of Emissions from a High Speed Ferry 2003 DEER Conference Presentation: West Virginia University 2003_deer_thompson.pdf (274.42 KB) More Documents & Publications Recent Diesel Engine Emission Mitigation Activities of the Maritime Administration Energy Technologies Program The Maritime Administration's Energy and Emissions Program - Part 2 Summary of In-Use Evaluation of Two Heavy Duty Hybrid Applications

  11. REDUCTION OF EMISSIONS FROM A HIGH SPEED FERRY

    SciTech Connect (OSTI)

    Thompson,G.; Gautam, M; Clark, N; Lyons, D; Carder, D; Riddle, W; Barnett, R; Rapp, B; George, S

    2003-08-24

    Emissions from marine vessels are being scrutinized as a major contributor to the total particulate matter (TPM), oxides of sulfur (SOx) and oxides of nitrogen (NOx) environmental loading. Fuel sulfur control is the key to SOx reduction. Significant reductions in the emissions from on-road vehicles have been achieved in the last decade and the emissions from these vehicles will be reduced by another order of magnitude in the next five years: these improvements have served to emphasize the need to reduce emissions from other mobile sources, including off road equipment, locomotives, and marine vessels. Diesel-powered vessels of interest include ocean going vessels with low- and medium-speed engines, as well as ferries with high speed engines, as discussed below. A recent study examined the use of intake water injection (WIS) and ultra low sulfur diesel (ULSD) to reduce the emissions from a high-speed passenger ferry in southern California. One of the four Detroit Diesel 12V92 two-stroke high speed engines that power the Waverider (operated by SCX, inc.) was instrumented to collect intake airflow, fuel flow, shaft torque, and shaft speed. Engine speed and shaft torque were uniquely linked for given vessel draft and prevailing wind and sea conditions. A raw exhaust gas sampling system was utilized to measure the concentration of NOx, carbon dioxide (CO2), and oxygen (O2) and a mini dilution tunnel sampling a slipstream from the raw exhaust was used to collect TPM on 70 mm filters. The emissions data were processed to yield brake-specific mass results. The system that was employed allowed for redundant data to be collected for quality assurance and quality control. To acquire the data, the Waverider was operated at five different steady state speeds. Three modes were in the open sea off Oceanside, CA, and idle and harbor modes were also used. Data have showed that the use of ULSD along with water injection (WIS) could significantly reduce the emissions of NOx and PM

  12. --No Title--

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

    ... larger share in recent years, exceeding coal-fired generation in 2012, 2014, and 2015. ... at the Browns Ferry nuclear power plant in Limestone County have a combined ...

  13. A "Ferris Bueller Style" Look at Small Business Contracting at the

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

    Department of Energy | Department of Energy A "Ferris Bueller Style" Look at Small Business Contracting at the Department of Energy A "Ferris Bueller Style" Look at Small Business Contracting at the Department of Energy November 30, 2010 - 4:14pm Addthis Bill Valdez Bill Valdez Director of Workforce Management What does this mean for me? There are several program opportunities for small businesses within the Department of Energy. Some of the things on offer this year

  14. Conversation with Paul Brown | Open Energy Information

    Open Energy Info (EERE)

    Conversation with Paul Brown Jump to: navigation, search OpenEI Reference LibraryAdd to library Personal Communication: Conversation with Paul Brown Author Paul Brown Recipient...

  15. EA-1901: Kootenai River White Sturgeon and Burbot Hatcheries Project, Bonners Ferry, Boundary County, Idaho

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal for DOE’s Bonneville Power Administration to support the Kootenai Tribe of Idaho’s construction of a new hatchery on property owned by the Tribe at the confluence of the Moyie and Kootenai Rivers, approximately eight miles upstream from Bonners Ferry, Idaho. The proposed location of the new hatchery facility is currently the site of the Twin Rivers Canyon Resort.

  16. EA-1973: Kootenai River Restoration at Bonners Ferry, Boundary County, Idaho

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration (BPA) is preparing an EA to assess the potential environmental impacts of funding the Kootenai Tribe of Idaho to restore portions of the Kootenai River near the town of Bonners Ferry, Idaho. The proposed project involves installing structures on the river banks, excavating areas in the river to create deeper pools, and developing and enhancing islands that would be planted with native vegetation.

  17. K. Aydin, V. E. Ferry, R. M. Briggs, and H. A. Atwater California Institute of Technology

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

    Broadband polarization independent light absorption using ultrathin plasmonic super absorbers K. Aydin, V. E. Ferry, R. M. Briggs, and H. A. Atwater California Institute of Technology Achievement: We have demonstrated an ultrathin (260 nm) plasmonic super absorber consisting of a metal-insulator-metal stack with a nanostructured top silver lm composed of crossed trapezoidal arrays. The super absorber yields broadband and polarization-independent resonant light absorption over the entire visible

  18. Application of the Ferris test methods for estimating hydraulic properties near a river boundary

    SciTech Connect (OSTI)

    Gilmore, T.J.; Spane, F.A. Jr.

    1993-10-01

    Standard hydraulic test methods, such as constant-rate pumping tests, may be impractical for characterizing hazardous waste sites located near fluctuating hydrologic boundaries such as rivers or oceans. An alternate approach for hydrologic characterization at these locations is to analyze the groundwater responses associated with river-stage or tidal fluctuations to aquifer properties (i.e., hydraulic diffusivity). Based on this approach, aquifer properties were determined for an area adjoining the Columbia River on the Hanford Site using two sinusoidal analysis techniques described in Ferris (1952, 1963). The first method uses the observed groundwater time-lag response, the second uses the amplitude ratio of well water level to river stage. Both techniques assume the river fluctuations can be approximated by a sinusoidal pattern. A range for hydraulic conductivity was calculated based on the hydraulic diffusivity estimates obtained from the methods together with the known aquifer thickness (50 ft) and assumed specific yield (0.1). The analysis methods produced two overlapping hydraulic conductivity ranges, with the Ferris time-lag analysis method forming the upper bound of the range, and the Ferris well water-level/river-stage amplitude ratio method forming the lower bound. Results from a nearby standard constant-rate discharge aquifer test were also examined for comparison. These results were within the upper bound of the hydraulic conductivity range.

  19. brown-98.pdf

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

    High Resolution Validation in the Shortwave: ASTI/LBLRTM QME P. D. Brown, S. A. Clough, and E. J. Mlawer Atmospheric and Environmental Research, Inc. Cambridge, Massachusetts T. R. Shippert Pacific Northwest National Laboratory Richland, Washington F. J. Murcray Denver University Denver, Colorado Introduction To assess our modeling capability in the shortwave and to resolve issues including those described by Cess et al. (1995) and others (Li and Moreau 1996; Arking 1996), a Quality Measurement

  20. brown-99.PDF

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

    NCAR/ARM Multiple Antenna Profiler W.O.J. Brown, S. A. Cohn, M. E. Susedik, C. L. Martin, G. Maclean, and D. B. Parsons National Center for Atmospheric Research Atmospheric Technology Division Boulder, Colorado Introduction National Center for Atmospheric Research/Atmospheric Technology Division (NCAR/ATD), with the support of the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Program, is developing an advanced wind profiler radar known as Multiple Antenna Profiler Radar

  1. Brown County Wind | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name Brown County Wind Facility Brown County Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Adams Electric...

  2. An Aqueous Redox Flow Battery Based on Neutral Alkali Metal Ferri/ferrocyanide and Polysulfide Electrolytes

    SciTech Connect (OSTI)

    Wei, Xiaoliang; Xia, Gordon; Kirby, Brent W.; Thomsen, Edwin C.; Li, Bin; Nie, Zimin; Graff, Gordon L.; Liu, Jun; Sprenkle, Vincent L.; Wang, Wei

    2015-11-13

    Aiming to explore low-cost redox flow battery systems, a novel iron-polysulfide (Fe/S) flow battery has been demonstrated in a laboratory cell. This system employs alkali metal ferri/ferrocyanide and alkali metal polysulfides as the redox electrolytes. When proper electrodes, such as pretreated graphite felts, are used, 78% energy efficiency and 99% columbic efficiency are achieved. The remarkable advantages of this system over current state-of-the-art redox flow batteries include: 1) less corrosive and relatively environmentally benign redox solutions used; 2) excellent energy and utilization efficiencies; 3) low cost for redox electrolytes and cell components. These attributes can lead to significantly reduced capital cost and make the Fe/S flow battery system a promising low-cost energy storage technology. The major drawbacks of the present cell design are relatively low power density and possible sulfur species crossover. Further work is underway to address these concerns.

  3. DOE/EIS-0283-S2

    National Nuclear Security Administration (NNSA)

    ... I-18 Table of Contents xxvii Appendix J Table J-1 Partial Mixed Oxide and Full Low-Enriched Uranium Core Inventories for the Sequoyah and Browns Ferry Nuclear Power Plants ...

  4. Alabama Profile

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

    for 83% of total exported coal. The three reactors at the Browns Ferry Nuclear Plant in Limestone County, Alabama ... Average Period Petroleum-Fired * 0.3 % May-16 find more ...

  5. nuclear

    National Nuclear Security Administration (NNSA)

    2%2A en U.S-, Japan Exchange Best Practices on Nuclear Emergency Response http:nnsa.energy.govmediaroompressreleasesu.s-japan-exchange-best-practices-nuclear-emergency-respon...

  6. brown out | OpenEI Community

    Open Energy Info (EERE)

    brown out Home Dc's picture Submitted by Dc(266) Contributor 31 October, 2014 - 10:58 What do you know about the grid? black out brown out bulk power system electricity grid future...

  7. brown-pd99.PDF

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

    High-Resolution Model/Measurement Validations of Solar Direct-Beam Flux P. D. Brown, E. J. Mlawer, and S. A. Clough Atmospheric and Environmental Research, Inc. Cambridge, Massachusetts T. R. Shippert Pacific Northwest National Laboratory Richland, Washington F. J. Murcray and A. W. Dybdahl University of Denver Denver, Colorado L. C. Harrison, P. W. Kiedron, and J. J. Michalsky State University of New York at Albany Albany, New York Introduction A balance between thermal and solar radiation at

  8. Chelsea Brown | Center for Bio-Inspired Solar Fuel Production

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

    Brown Graduate student Subtask 4 project: "Water Oxidation using Functionalized Porphyrin Chromophores and Iridium Catalyst"

  9. CMI Education Partner: Brown University | Critical Materials Institute

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

    Education Partner: Brown University Brown University offers courses in several areas: Engineering School Institute of Environment and Study Brown University: Engineering School http://www.brown.edu/academics/engineering/undergraduate-study/courses ENGN 0030 - Introduction to Engineering: An introduction to various engineering disciplines, thought processes, and issues. Topics include computing in engineering, engineering design, optimization, and estimation. Case studies in engineering are used

  10. Microsoft PowerPoint - 7 Kevin Brown

    Office of Environmental Management (EM)

    (CBP) Toolsets Kevin G. Brown Vanderbilt University and CRESP Cementitious Barriers Partnership Performance & Risk Assessment Community of Practice Technical Exchange Meeting December 11-12, 2014 Las Vegas NM Project Team Members Vanderbilt University & CRESP D. Kosson*, K.G. Brown*, S. Mahadevan, J. Branch, F. Sanchez Savannah River National Laboratory (SRNL) C. Langton*, G. Flach*, H. Burns*, R. Seitz, S. Marra Energy Research Centre of The Netherlands (ECN) & CRESP H. van der

  11. Ukrainian mineral wax from brown coal

    SciTech Connect (OSTI)

    Shabad, T.

    1986-07-01

    An unusual mineral enterprise is the mineral wax plant of Semenovskoye in the Aleksandriya brown coal basin of the Ukraine. The only plant of its kind in the Soviet Union, it has been in operation since 1959, extracting mineral wax from the local bitumen-rich brown coal. The plant yields about 7.5 tons of mineral wax a day (about 2700 tons a year), for use in a variety of applications.

  12. FIA-12-0009- In the Matter of Cynthia Brown

    Broader source: Energy.gov [DOE]

    Cynthia Brown filed an Appeal regarding a request she filed under the Freedom of Information Act. In December 2011, Ms. Brown filed a request for records regarding her late mother.

  13. FIA-12-0044- In the Matter of Cynthia Brown

    Broader source: Energy.gov [DOE]

    Cynthia Brown filed an Appeal regarding a request filed under the Freedom of Information Act. In March 2012, Ms. Brown filed a request for records regarding her late mother.

  14. Brown-Atchison E C A Inc | Open Energy Information

    Open Energy Info (EERE)

    Brown-Atchison E C A Inc Jump to: navigation, search Name: Brown-Atchison E C A Inc Place: Kansas Phone Number: 785-486-2117 Website: baelectric.com Outage Hotline: After Hours:...

  15. Taking It from Brown to Green: Renewable Energy on Contaminated...

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

    Taking It from Brown to Green: Renewable Energy on Contaminated Lands - Otto Van Geet (2.61 MB) Brown to Green: Brownfields Redevelopment for Green Power - Johnson (4.79 MB) ...

  16. Movement of tagged dredged sand at thalweg disposal sites in the Upper Mississippi River. Volume 3. Additional results at Gordon's Ferry and Whitney Island sites

    SciTech Connect (OSTI)

    McCown, D.L.; Paddock, R.A.

    1985-04-01

    During routine channel maintenance, hydraulically dredged sand was tagged with sand coated with fluorescent dye before being deposited as a pile in the thalweg at three sites on the Upper Mississippi River. As discussed in the first two volumes of this report, bathymetry was measured and surface sediments were sampled to study changes in the topography of the disposal pile and the downstream movement of the tagged sand. At all three sites, topographic evidence of the pile disappeared after the first period of high river flow, which was followed by redevelopment of dunes in the disposal area. The tagged sand did not migrate into nearby border areas, backwaters, or sloughs, remaining in the main channel as it moved downstream. This volume presents the results of additional surveys at the Gordon's Ferry and Whitney Island sites. At Gordon's Ferry, 25 bottom cores were taken to examine the three-dimensional distribution of tagged sand in the bottom sediments. The core analyses indicated that much of the tagged sand had been incorporated into the dune structure and that it resided primarily in the crests of the dunes.

  17. Microsoft PowerPoint - 1 Kevin Brown

    Office of Environmental Management (EM)

    Program Update Interagency Steering Committee on Performance and Risk Assessment Community of Practice Annual Technical Exchange Meeting Richland, Washington December 15-16, 2015 Project Team Members Vanderbilt University & CRESP D. Kosson*, K.G. Brown*, A.C. Garrabrants, S. Mahadevan, J. Branch, F. Sanchez Savannah River National Laboratory (SRNL) C. Langton*; G. Flach*; H. Burns*; R. Seitz, S. Marra; F.G. Smith, III Energy Research Centre of The Netherlands (ECN) & CRESP H. van der

  18. Browning: Email in Response to Smart Grid Request for Information |

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

    Department of Energy Browning: Email in Response to Smart Grid Request for Information Browning: Email in Response to Smart Grid Request for Information Email from Stephen Browning explaing the two attachments submitted in response to the Smart Grid Request for Information on Addressing Policy and Logistical Challenges. Smart Gird Policy Memo (15.63 KB) More Documents & Publications City Utilities of Springfield Missouri Comments on Smart Grid RFI: Addressing Policy and Logistical

  19. Senior Obama Administration Officials to Join Governor Brown...

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

    Secretary Daniel Poneman will join California Governor Jerry Brown, Los Angeles Mayor Eric Garcetti and state, local and tribal leaders from across the country for a media...

  20. MEMORANDUM FROM: THOMAS E. BROWN, DIRECTOR OFFICE OF CONTRACT...

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

    ,2008 MEMORANDUM FROM: THOMAS E. BROWN, DIRECTOR OFFICE OF CONTRACT MANAGEMENT OFFICE OF PROCUREMENT AND ASSISTANCE MANAGEMENT SUBJECT: Contract Change Order Administration of...

  1. Brown Grease to Biodiesel Demonstration Project Report (Technical...

    Office of Scientific and Technical Information (OSTI)

    ... Country of Publication: United States Language: English Subject: 09 BIOMASS FUELS Brown Grease; Trap Waste; Biodiesel; Biofuel; Wastewater; Anaerobic Digestion Word Cloud More Like ...

  2. Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1995) |...

    Open Energy Info (EERE)

    Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1995) Exploration Activity Details Location...

  3. Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1994) |...

    Open Energy Info (EERE)

    Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1994) Exploration Activity Details Location...

  4. Systems and Professional Development - David Brown, Director, Systems &

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

    Professional Development, OAPM | Department of Energy Systems and Professional Development - David Brown, Director, Systems & Professional Development, OAPM Systems and Professional Development - David Brown, Director, Systems & Professional Development, OAPM Topics Discussed: Importance of Contracting in DOE Compared with Other Civilian Agencies Professional Workforce Workload DOE's Certified Workforce Acquisition Workload The Holy Grail of Contract and Project Management More...

  5. Novel Solvent System for Post Combustion CO{sub 2} Capture Brown...

    Office of Scientific and Technical Information (OSTI)

    COsub 2 Capture Brown, Alfred; Brown, Nathan 20 FOSSIL-FUELED POWER PLANTS Clean Coal Technology Coal - Environmental (Carbon Capture) Clean Coal Technology Coal -...

  6. Brown County, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Brown County is a county in Ohio. Its FIPS County Code is 015. It is classified as ASHRAE...

  7. Brown County, Indiana: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Brown County is a county in Indiana. Its FIPS County Code is 013. It is classified as ASHRAE...

  8. Brown County, Kansas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Brown County is a county in Kansas. Its FIPS County Code is 013. It is classified as ASHRAE...

  9. Brown County, Minnesota: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Brown County is a county in Minnesota. Its FIPS County Code is 015. It is classified as...

  10. Brown County, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Brown County is a county in Texas. Its FIPS County Code is 049. It is classified as ASHRAE...

  11. Brown County, South Dakota: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Brown County is a county in South Dakota. Its FIPS County Code is 013. It is classified as...

  12. From: Meredith Brown Subject: Yellow Alert:...

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

    Fri, 12 Jun 1998 17:03:23 -0500 From: Meredith Brown Subject: Yellow Alert: Small Bench Top Fire Title: Bench Top Fire Involving Use of Alcohol and Burner...

  13. Brown County, Nebraska: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Brown County is a county in Nebraska. Its FIPS County Code is 017. It is classified as...

  14. Brown County, Wisconsin: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Brown County is a county in Wisconsin. Its FIPS County Code is 009. It is classified as...

  15. Brown County Rural Elec Assn | Open Energy Information

    Open Energy Info (EERE)

    Rural Elec Assn Jump to: navigation, search Name: Brown County Rural Elec Assn Place: Minnesota Phone Number: 1-800-658-2368 Website: www.browncountyrea.coop Outage Hotline:...

  16. Brown County, Illinois: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Brown County is a county in Illinois. Its FIPS County Code is 009. It is classified as...

  17. DOE - Office of Legacy Management -- Brown University - Metcalf Research

    Office of Legacy Management (LM)

    Lab - RI 01 Brown University - Metcalf Research Lab - RI 01 FUSRAP Considered Sites Site: Brown University (Metcalf Research Lab.) (RI.01 ) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Providence , Rhode Island RI.01-1 Evaluation Year: 1987 RI.01-1 Site Operations: Research/Development on the preparation of pure halides of heavy metals, Bench Scale Process, and Sample & Analysis. RI.01-1 Site Disposition: Eliminated -

  18. Brown Grease to Biodiesel Demonstration Project Report

    SciTech Connect (OSTI)

    San Francisco Public Utilities Commission; URS Corporation; Biofuels, Blackgold; Carollo Engineers

    2013-01-30

    program by other municipal agencies (as applicable). In order to accomplish the goals of the project, the following steps were performed: 1. Operation of a demonstration facility designed to receive 10,000 to 12,000 gallons of raw Trap Waste each day from private Trap Waste hauling companies. The demonstration facility was designed and built by Pacific Biodiesel Technologies (PBTech). The demonstration facility would also recover 300 gallons of Brown Grease per day from the raw Trap Waste. The recovered Brown Grease was expected to contain no more than 2% Moisture, Insolubles, and Unsaponifiables (MIU) combined. 2. Co-digestion of the side streams (generated during the recovery of 300 gallons of Brown Grease from the raw Trap Waste) with wastewater sludge in the WWTP's anaerobic digesters. The effects of the side streams on anaerobic digestion were quantified by comparison with baseline data. 3. Production of 240 gallons per day of ASTM D6751-S15 grade Biodiesel fuel via a Biodiesel conversion demonstration facility, with the use of recovered Brown Grease as a feedstock. The demonstration facility was designed and built by Blackgold Biofuels (BGB). Side streams from this process were also co-digested with wastewater sludge. Bench-scale anaerobic digestion testing was conducted on side streams from both demonstration facilities to determine potential toxicity and/or changes in biogas production in the WWTP anaerobic digester. While there is a lot of theoretical data available on the lab-scale production of Biodiesel from grease Trap Waste, this full-scale demonstration project was one of the first of its kind in the United States. The project's environmental impacts were expected to include: Reduction of greenhouse gas emissions by prevention of the release of methane at landfills. Although the combustion product of Biodiesel and Methane gas produced in the Anaerobic digester, Carbon Dioxide, is also a greenhouse gas; it is 20 times weaker for the same amount (per mole

  19. Diagnostics Implemented on NIF - Nuclear

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

    Nuclear Diagnostic acronym Diangostic Port location Built and commisioned by Description of function Published references EMP Electromagnetic Power 102-84 LLNL EMP measures the electromagnetic frequency spectrum in the target chamber. C. G. Brown et al., "Analysis of Electromagnetic Pulse (EMP) Measurements in the National Ingition Facility's Target Bay and Chamber." International Fusion Science and Applications (IFSA) Bordeaux, France, September 12, 2011, LLNL-PROC-512731 GRH Time and

  20. Central Ferry-Lower Monumental

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

    Involved Contact Us Search Comments Library Frequently Asked Questions Keeler-Pennwalt Wood Pole Removal Line Projects Line Rebuild, Relocation and Substation Projects Spacer...

  1. Production and degradation of oxalic acid by brown rot fungi

    SciTech Connect (OSTI)

    Espejo, E.; Agosin, E. )

    1991-07-01

    Our results show that all of the brown rot fungi tested produce oxalic acid in liquid as well as in semisolid cultures. Gloeophyllum trabeum, which accumulates the lowest amount of oxalic acid during decay of pine holocellulose, showed the highest polysaccharide-depolymerizing activity. Semisolid cultures inoculated with this fungus rapidly converted {sup 14}C-labeled oxalic acid to CO{sub 2} during cellulose depolymerization. The other brown rot fungi also oxidized {sup 14}C-labeled oxalic acid, although less rapidly. In contrast, semisolid cultures inoculated with the white rot fungus Coriolus versicolor did not significantly catabolize the acid and did not depolymerize the holocellulose during decay. Semisolid cultures of G. trabeum amended with desferrioxamine, a specific iron-chelating agent, were unable to lower the degree of polymerization of cellulose or to oxidize {sup 14}C-labeled oxalic acid to the extent or at the rate that control cultures did. These results suggest that both iron and oxalic acid are involved in cellulose depolymerization by brown rot fungi.

  2. Nuclear Science

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

    Nuclear Science Nuclear Science Experimental and theoretical nuclear research carried out at NERSC is driven by the quest for improving our understanding of the building blocks of...

  3. Nuclear Astrophysics

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

    Nuclear & Uranium Glossary › FAQS › Overview Data Status of U.S. nuclear outages (interactive) Nuclear power plants Uranium & nuclear fuel Spent nuclear fuel All nuclear data reports Analysis & Projections Major Topics Most popular Nuclear plants and reactors Projections Recurring Uranium All reports Browse by Tag Alphabetical Frequency Tag Cloud Current Issues & Trends See more › U.S. nuclear outages this summer were higher than in summer 2015

  4. Nuclear Forensics

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

    nuclear forensics Nuclear Forensics AMS is a Powerful Tool for Nuclear Forensics Nuclear forensics, which can be applied to both interdicted materials and debris from a nuclear explosion, is the application of laboratory analysis and interpretation to provide technical conclusions (provenance, design, etc.) about a nuclear device or interdicted nuclear material. Nuclear forensic analysts can build confidence in their conclusions by employing multiple signatures that collectively minimize the

  5. Nuclear Facilities

    Broader source: Energy.gov [DOE]

    The nuclear sites list and map shows how DOE nuclear operations are mostly divided between nuclear weapons stockpile maintenance, research and environmental cleanup. The operations are performed within several different facilities supporting nuclear reactor operations, nuclear research, weapons disassembly, maintenance and testing, hot cell operations, nuclear material storage and processing and waste disposal.

  6. From: Meredith Brown Subject: Red Alert: Contaminatio...

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

    Meredith Brown Subject: Red Alert: Contamination Spread Outside of RCAs ... Priority Descriptor: REDUrgent (based on the actual spread of contamination offsite) ...

  7. From Meredith Brown racer@lanl.gov Subject: Yellow Alert- Supplied...

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

    12 Jan 2000 130859 -0700 From Meredith Brown racer@lanl.gov Subject: Yellow Alert- Supplied Air Fitting Failure Title: Yellow Alert- Mechanical Failure of Supplied Air Fitting...

  8. ATMOSPHERIC CIRCULATION OF BROWN DWARFS: JETS, VORTICES, AND TIME VARIABILITY

    SciTech Connect (OSTI)

    Zhang, Xi; Showman, Adam P.

    2014-06-10

    A variety of observational evidence demonstrates that brown dwarfs exhibit active atmospheric circulations. In this study we use a shallow-water model to investigate the global atmospheric dynamics in the stratified layer overlying the convective zone on these rapidly rotating objects. We show that the existence and properties of the atmospheric circulation crucially depend on key parameters including the energy injection rate and radiative timescale. Under conditions of strong internal heat flux and weak radiative dissipation, a banded flow pattern comprised of east-west jet streams spontaneously emerges from the interaction of atmospheric turbulence with the planetary rotation. In contrast, when the internal heat flux is weak and/or radiative dissipation is strong, turbulence injected into the atmosphere damps before it can self-organize into jets, leading to a flow dominated by transient eddies and isotropic turbulence instead. The simulation results are not very sensitive to the form of the forcing. Based on the location of the transition between jet-dominated and eddy-dominated regimes, we suggest that many brown dwarfs may exhibit atmospheric circulations dominated by eddies and turbulence (rather than jets) due to the strong radiative damping on these worlds, but a jet structure is also possible under some realistic conditions. Our simulated light curves capture important features from observed infrared light curves of brown dwarfs, including amplitude variations of a few percent and shapes that fluctuate between single-peak and multi-peak structures. More broadly, our work shows that the shallow-water system provides a useful tool to illuminate fundamental aspects of the dynamics on these worlds.

  9. From: Doris Brown To: Congestion Study Comments Subject: NIETCs

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

    Doris Brown To: Congestion Study Comments Subject: NIETCs Date: Monday, October 20, 2014 2:47:39 PM I am opposed to the establishment of National Interest Energy Transmission Corridors (NIETC's) Easements for the corridors will mainly have to be obtained through eminent domain. Compensation for the easements can only be "just" as required in the Bill of Rights if it reflects all the possibilities of what the easement may be used for. Utilities do not want to farm the land, so farming

  10. CONFIRMATION OF ONE OF THE COLDEST KNOWN BROWN DWARFS

    SciTech Connect (OSTI)

    Luhman, K. L.; Bochanski, J. J.; Burgasser, A. J.; Labbe, I.; Monson, A. J.; Persson, S. E.; Saumon, D.; Marley, M. S.

    2012-01-10

    Using two epochs of 4.5 {mu}m images from the Infrared Array Camera (IRAC) on board the Spitzer Space Telescope, we recently identified a common proper motion companion to the white dwarf WD 0806-661 that is a candidate for the coldest known brown dwarf. To verify its cool nature, we have obtained images of this object at 3.6 {mu}m with IRAC, at J with the High Acuity Wide-field K-band Imager (HAWK-I) on the Very Large Telescope, and in a filter covering the red half of J with FourStar on Magellan. WD 0806-661 B is detected by IRAC but not HAWK-I or FourStar. From these data we measure colors of [3.6] - [4.5] = 2.77 {+-} 0.16 and J - [4.5] > 7.0 (S/N < 3). Based on these colors and its absolute magnitudes, WD 0806-661 B is the coldest companion directly imaged outside of the solar system and is a contender for the coldest known brown dwarf with the Y dwarf WISEP J1828+2650. It is unclear which of these two objects is colder given the available data. A comparison of its absolute magnitude at 4.5 {mu}m to the predictions of theoretical spectra and evolutionary models suggests that WD 0806-661 B has T{sub eff} = 300-345 K.

  11. NEOWISE-R observation of the coolest known brown dwarf

    SciTech Connect (OSTI)

    Wright, Edward L.; Mainzer, Amy; Bauer, James; Eisenhardt, Peter R. M.; Davy Kirkpatrick, J.; Masci, Frank; Fajardo-Acosta, Sergio; Gelino, Christopher R.; Beichman, Charles A.; Cutri, Roc; Cushing, Michael C.; Skrutskie, M. F.; Grav, T.

    2014-11-01

    The Wide-field Infrared Survey Explorer (WISE) spacecraft has been reactivated as NEOWISE-R to characterize and search for near-Earth objects. The brown dwarf WISE J085510.83–071442.5 has now been re-observed by NEOWISE-R, and we confirm the results of Luhman, who found a very low effective temperature (≈250 K), a very high proper motion (8.''1 ± 0.''1 yr{sup –1}), and a large parallax (454 ± 45 mas). The large proper motion has separated the brown dwarf from the background sources that influenced the 2010 WISE data, allowing a measurement of a very red WISE color of W1 – W2 >3.9 mag. A re-analysis of the 2010 WISE astrometry using only the W2 band, combined with the new NEOWISE-R 2014 position, gives an improved parallax of 448 ± 33 mas and a proper motion of 8.''08 ± 0.''05 yr{sup –1}. These are all consistent with values from Luhman.

  12. nuclear security

    National Nuclear Security Administration (NNSA)

    3%2A en Shaping the future of nuclear detection http:nnsa.energy.govblogshaping-future-nuclear-detection

    Learning techniques to combat nuclear trafficking, touring the...

  13. Nuclear Science

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

    and Engineering Education Sourcebook 2013 American Nuclear Society US Department of Energy Nuclear Science & Engineering Education Sourcebook 2013 North American Edition American Nuclear Society Education, Training, and Workforce Division US Department of Energy Office of Nuclear Energy Editor and Founder John Gilligan Professor of Nuclear Engineering North Carolina State University Version 5.13 Welcome to the 2013 Edition of the Nuclear Science and Engineering Education (NS&EE)

  14. Rheological properties of water-coal slurries based on brown coal in the presence of sodium lignosulfonates and alkali

    SciTech Connect (OSTI)

    D.P. Savitskii; A.S. Makarov; V.A. Zavgorodnii

    2009-07-01

    The effect of the oxidized surface of brown coal on the structural and rheological properties of water-coal slurries was found. The kinetics of structure formation processes in water-coal slurries based on as-received and oxidized brown coal was studied. The effect of lignosulfonate and alkali additives on the samples of brown coal was considered.

  15. nuclear enterprise

    National Nuclear Security Administration (NNSA)

    Outlines Accomplishments in Stockpile Stewardship, Nuclear Nonproliferation, Naval Reactors and Managing the Nuclear Enterprise

    The...

  16. Nuclear Physics

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

    Nuclear Physics Nuclear Physics Enabling remarkable discoveries and tools that transform our understanding of energy and matter and advance national, economic, and energy security. ...

  17. Speakers: Adam Sieminski, Deutsche Bank Stephen P. A. Brown,...

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

    ... In other words talk...earlier panels about transparency and ... commodity cycle including fuel price cycle is something ... gas because they lost the biggest nuclear power station. ...

  18. 2016-3-17_Allocations_Brown_Bag

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

    Bagwell & Richard Gerber! ! NERSC Brown Bag! March 17, 2016 Allocations --- 1 --- Allocations Summary * How t he N ERSC p ie i s d istributed - A l i'le h istory * DOE O ffices & P rograms * NERSC r eserves * The E RCAP p rocess * How u ser a ccounts a nd a llocaBons w ork * What h appens w hen u ser/repo r un o ut o f B me * Q & A --- 2 --- Allocations History 0 500000000 1E+09 1.5E+09 2E+09 2.5E+09 3E+09 3.5E+09 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

  19. Spent Nuclear Fuel

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

    Nuclear & Uranium Glossary FAQS Overview Data Status of U.S. nuclear outages (interactive) Nuclear power plants Uranium & nuclear fuel Spent nuclear fuel All nuclear data ...

  20. Nuclear Science/Nuclear Chemistry

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

    nuclear science nuclear chemistry Nuclear Science/Nuclear Chemistry Nuclear Physics The 10-MV tandem accelerator at CAMS provides a platform for conducting nuclear physics experiment both for basic science and lab mission-related programs. For example, we performed a new cross section measurement of the astrophysically important reaction 40Ca(a,g)44Ti in which high purity CaO targets were irradiated with helium ions at several different discrete energies. The reaction rate was measured on-line

  1. Nuclear Energy!

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

    Nuclear Energy Technical Assistance Nuclear Energy Technical Assistance "The United States will continue to promote the safe and secure use of nuclear power worldwide through a variety of bilateral and multilateral engagements. For example, the U.S. Nuclear Regulatory Commission advises international partners on safety and regulatory best practices, and the Department of Energy works with international partners on research and development, nuclear waste and storage, training, regulations,

  2. Nuclear Energy

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

    Stationary Power/Nuclear Energy Nuclear Energy Tara Camacho-Lopez 2016-06-29T14:02:38+00:00 Contributing to the Next Generation of Nuclear Power Generation Our nuclear energy and fuel cycle technologies supports the safe, secure, reliable, and sustainable use of nuclear power worldwide through strengths in repository science, nonproliferation, safety and security, transportation, modeling, and system demonstrations. Areas of Expertise Defense Waste Management Sandia advises the U.S. Department

  3. Craig Brown | Center for Gas SeparationsRelevant to Clean Energy...

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

    Bloch, Eric D; Queen, Wendy L; Krishna, Rajamani; Zadrozny, Joseph M.; Brown, Craig M; and Long, Jeffrey R Hydrocarbon Separations in a Metal-Organic Framework with Open Iron(II) ...

  4. Travis Brown and Kamran Baksh, Final Submission | OpenEI Community

    Open Energy Info (EERE)

    Travis Brown and Kamran Baksh, Final Submission Home > Groups > 2014 Geothermal Case Study Challenge CSM's picture Submitted by CSM(5) Member 14 May, 2014 - 21:59 Colorado School...

  5. Laboratory measurements of resistivity in warm dense plasmas relevant to the microphysics of brown dwarfs

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

    Booth, N.; Robinson, A. P. L.; Hakel, P.; Clarke, R. J.; Dance, R. J.; Doria, D.; Gizzi, L. A.; Gregori, G.; Koester, P.; Labate, L.; et al

    2015-11-06

    Since the observation of the first brown dwarf in 1995, numerous studies have led to a better understanding of the structures of these objects. Here we present a method for studying material resistivity in warm dense plasmas in the laboratory, which we relate to the microphysics of brown dwarfs through viscosity and electron collisions. Here we use X-ray polarimetry to determine the resistivity of a sulphur-doped plastic target heated to Brown Dwarf conditions by an ultra-intense laser. The resistivity is determined by matching the plasma physics model to the atomic physics calculations of the measured large, positive, polarization. Furthermore, themore » inferred resistivity is larger than predicted using standard resistivity models, suggesting that these commonly used models will not adequately describe the resistivity of warm dense plasma related to the viscosity of brown dwarfs.« less

  6. Laboratory measurements of resistivity in warm dense plasmas relevant to the microphysics of brown dwarfs

    SciTech Connect (OSTI)

    Booth, N.; Robinson, A. P. L.; Hakel, P.; Clarke, R. J.; Dance, R. J.; Doria, D.; Gizzi, L. A.; Gregori, G.; Koester, P.; Labate, L.; Levato, T.; Li, B.; Makita, M.; Mancini, R. C.; Pasley, J.; Rajeev, P. P.; Riley, D.; Wagenaars, E.; Waugh, J. N.; Woolsey, N. C.

    2015-11-06

    Since the observation of the first brown dwarf in 1995, numerous studies have led to a better understanding of the structures of these objects. Here we present a method for studying material resistivity in warm dense plasmas in the laboratory, which we relate to the microphysics of brown dwarfs through viscosity and electron collisions. Here we use X-ray polarimetry to determine the resistivity of a sulphur-doped plastic target heated to Brown Dwarf conditions by an ultra-intense laser. The resistivity is determined by matching the plasma physics model to the atomic physics calculations of the measured large, positive, polarization. Furthermore, the inferred resistivity is larger than predicted using standard resistivity models, suggesting that these commonly used models will not adequately describe the resistivity of warm dense plasma related to the viscosity of brown dwarfs.

  7. Nuclear Materials Management & Safeguards System | National Nuclear...

    National Nuclear Security Administration (NNSA)

    About Our Programs Nuclear Security Nuclear Materials Management & Safeguards System NMMSS U.S. Department of Energy U.S. Nuclear Regulatory Commission Nuclear Materials ...

  8. Baghouse Slipstream Testing at TXU's Big Brown Station

    SciTech Connect (OSTI)

    John Pavlish; Jason Laumb; Robert Jensen; Jeffery Thompson; Christopher Martin; Mark Musich; Brandon Pavlish; Stanley Miller; Lucinda Hamre

    2007-04-30

    Performing sorbent testing for mercury control at a large scale is a very expensive endeavor and requires months of planning and careful execution. Even with good planning, there are plant limitations on what operating/design parameters can be varied/tested and when. For parameters that cannot be feasibly tested at the full scale (lower/higher gas flow, different bag material, cleaning methods, sorbents, etc.), an alternative approach is used to perform tests on a slipstream unit using flue gas from the plant. The advantage that a slipstream unit provides is the flexibility to test multiple operating and design parameters and other possible technology options without risking major disruption to the operation of the power plant. Additionally, the results generated are expected to simulate full-scale conditions closely, since the flue gas used during the tests comes directly from the plant in question. The Energy & Environmental Research Center developed and constructed a mobile baghouse that allows for cost-effective testing of impacts related to variation in operating and design parameters, as well as other possible mercury control options. Multiple sorbents, air-to-cloth ratios, bag materials, and cleaning frequencies were evaluated while flue gas was extracted from Big Brown when it fired a 70% Texas lignite-30% Powder River Basin (PRB) blend and a 100% PRB coal.

  9. A new parallax measurement for the coldest known brown dwarf

    SciTech Connect (OSTI)

    Luhman, K. L.; Esplin, T. L.

    2014-11-20

    WISE J085510.83–071442.5 was recently discovered as the coldest known brown dwarf based on four epochs of images from the Wide-field Infrared Survey Explorer and the Spitzer Space Telescope. We have improved the accuracy of its parallax measurement by obtaining two additional epochs of Spitzer astrometry. We derive a parallactic distance of 2.31 ± 0.08 pc, which continues to support its rank as the fourth closest known system to the Sun when compared to WISE J104915.57–531906.1 AB (2.02 ± 0.02 pc) and Wolf 359 (2.386 ± 0.012 pc). The new constraint on the absolute magnitude at 4.5 μm indicates an effective temperature of 235-260 K based on four sets of theoretical models. We also show the updated positions of WISE J085510.83–071442.5 in two color-magnitude diagrams. Whereas Faherty and coworkers cited its location in M {sub W2} versus J – W2 as evidence of water clouds, we find that those data can be explained instead by cloudless models that employ non-equilibrium chemistry.

  10. Nuclear Navy

    SciTech Connect (OSTI)

    1994-12-31

    This video tells the story of the Navy`s development of nuclear power and its application in long-range submarines and the growing nuclear surface force. Narrated by Frank Blair.

  11. Spectroscopic, scanning laser OBIC, and I-V/QE characterizations of browned EVA solar cells

    SciTech Connect (OSTI)

    Pern, F.J.; Eisgruber, I.L.; Micheels, R.H.

    1996-05-01

    The effects of ethylene-vinyl acetate (EVA) discoloration due to accelerated field or laboratory exposure on the encapsulated silicon (Si) solar cells or EVA/glass laminates were characterized quantitatively by using non-invasive, non-destructive ultraviolet-visible (UV-vis) spectrophotometry, spectrocolorimetry, spectrofluorometry, scanning laser OBIC (optical beam induced current) spectroscopy, and current-voltage (I-V) and quantum efficiency (QE) measurements. The results show that the yellowness index (YI) measured directly over the AR-coated solar cells under the glass superstrate increased from the range of -80 to -90 to the range of -20 to 15 as the EVA changed from clear to brown. The ratio of two fluorescence emission peak areas generally increased from 1.45 to 5.69 as browning increased, but dropped to 4.21 on a darker EVA. For a solar cell with brown EVA in the central region, small-area grating QE measurements and scanning laser OBIC analysis between the brown and clear EVA regions showed that the quantum efficiency loss at 633 nm was 42%-48% of the loss at 488 nm, due to a reduced decrease of transmittance in browned EVA at the longer wavelengths. The portion of the solar cell under the browned EVA showed a decrease of {approximately}36% in efficiency, as compared to the cell efficiency under clear EVA. Transmittance loss at 633 nm was 38% of the loss at 488 nm for a light yellow-brown EVA/glass laminate that showed a small increase of 10 in the yellowness index.

  12. A data-driven approach for retrieving temperatures and abundances in brown dwarf atmospheres

    SciTech Connect (OSTI)

    Line, Michael R.; Fortney, Jonathan J.; Marley, Mark S.; Sorahana, Satoko

    2014-09-20

    Brown dwarf spectra contain a wealth of information about their molecular abundances, temperature structure, and gravity. We present a new data driven retrieval approach, previously used in planetary atmosphere studies, to extract the molecular abundances and temperature structure from brown dwarf spectra. The approach makes few a priori physical assumptions about the state of the atmosphere. The feasibility of the approach is first demonstrated on a synthetic brown dwarf spectrum. Given typical spectral resolutions, wavelength coverage, and noise, property precisions of tens of percent can be obtained for the molecular abundances and tens to hundreds of K on the temperature profile. The technique is then applied to the well-studied brown dwarf, Gl 570D. From this spectral retrieval, the spectroscopic radius is constrained to be 0.75-0.83 R {sub J}, log (g) to be 5.13-5.46, and T {sub eff} to be between 804 and 849 K. Estimates for the range of abundances and allowed temperature profiles are also derived. The results from our retrieval approach are in agreement with the self-consistent grid modeling results of Saumon et al. This new approach will allow us to address issues of compositional differences between brown dwarfs and possibly their formation environments, disequilibrium chemistry, and missing physics in current grid modeling approaches as well as a many other issues.

  13. Nuclear Physics

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

    Nuclear Physics Nuclear Physics Enabling remarkable discoveries and tools that transform our understanding of energy and matter and advance national, economic, and energy security. Isotopes» A roadmap of matter that will help unlock the secrets of how the universe is put together The DOE Office of Science's Nuclear Physics (NP) program supports the experimental and theoretical research needed to create this roadmap. This quest requires a broad approach to different, but related, scientific

  14. Nuclear Structure

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

    Security Administration | (NNSA) Nuclear Security Centers of Excellence: Fact Sheet March 23, 2012 "We [the Participating States]... Acknowledge the need for capacity building for nuclear security and cooperation at bilateral, regional and multilateral levels for the promotion of nuclear security culture through technology development, human resource development, education, and training; and stress the importance of optimizing international cooperation and coordination of

  15. Nuclear Counterterrorism

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2013-08-26

    The Order defines requirements for the protection of sensitive improvised nuclear device information and provides a framework to support DOE activities related to nuclear counterterrorism. (A supplemental DOE Manual, Control of and Access to Improvised Nuclear Device Information, provides requirements and procedures for protecting Sigma 20 information.) Appendices A and B are Official Use Only. Point of contact is Adam Boyd (NA-82), 202-586-0010. Supersedes DOE O 457.1 and DOE M 457.1-1.

  16. nuclear smuggling

    National Nuclear Security Administration (NNSA)

    13, 2015

    SHANGHAI, CHINA - Today, the Nuclear Security Administration's (NNSA) Principal Assistant Deputy Administrator for Defense...

  17. nuclear material

    National Nuclear Security Administration (NNSA)

    width"300" >WASHINGTON, D.C. - The Department of Energy's (DOE) National Nuclear Security Administration (NNSA), in partnership with the Defense Threat Reduction...

  18. nuclear weapons

    National Nuclear Security Administration (NNSA)

    09, 2015

    WASHINGTON, D.C. - The National Nuclear Security Administration (NNSA) and United States Air Force completed eight successful...

  19. nuclear controls

    National Nuclear Security Administration (NNSA)

    which "international safeguards are fully integrated into the design process of a new nuclear facility from the initial planning through design, construction, operation, and...

  20. nuclear forensics

    National Nuclear Security Administration (NNSA)

    serves as the premier technical leader in responding to and successfully resolving nuclear and radiological threats worldwide. When the need arises, NNSA is prepared to...

  1. NUCLEAR ENERGY

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

    NUCLEAR ENERGY RESEARCH AND DEVELOPMENT ROADMAP Table of Contents List of Acronyms ................................................................................................... iii Executive Summary ............................................................................................... v 1. Introduction ...................................................................................................... 1 2. Background

  2. Nuclear Weapons Journal

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

    Nuclear Weapons Journal Nuclear Weapons Journal The Nuclear Weapons Journal ceased publication after Issue 2, 2009. Below are Nuclear Weapons Journal archived issues. Issue 2, 2009 ...

  3. 2013 Nuclear Workforce Development ...

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

    Nuclear Myths Topics: Can a Nuclear Reactor Explode Like a Bomb? Will Nuclear Waste Be Around for Millions of Years? Is Nuclear Energy Dangerous? Moderator: Suzy Hobbs ...

  4. Harold Brown, 1992 | U.S. DOE Office of Science (SC)

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

    Harold Brown, 1992 The Enrico Fermi Award Fermi Award Home Nomination & Selection Guidelines Award Laureates 2010's 2000's 1990's 1980's 1970's 1960's 1950's Ceremony The Life of Enrico Fermi Contact Information The Enrico Fermi Award U.S. Department of Energy SC-2/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-2411 E: Email Us 1990's Harold Brown, 1992 Print Text Size: A A A FeedbackShare Page Citation For his outstanding contributions to national security;

  5. nuclear | National Nuclear Security Administration (NNSA)

    National Nuclear Security Administration (NNSA)

    nuclear Nuclear Science Week releases 2015 Impact Report and 2016 Request for Proposal Last week the Nuclear Science Week (NSW) National Steering Committee released its impact ...

  6. Nuclear Nonproliferation Program Offices | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy ... and monitor nuclear weapons production, proliferation, and nuclear explosions worldwide. ...

  7. Nuclear Nonproliferation, International Safeguards and Nuclear...

    Office of Scientific and Technical Information (OSTI)

    Conference: Nuclear Nonproliferation, International Safeguards and Nuclear Security in the Middle East Citation Details In-Document Search Title: Nuclear Nonproliferation, ...

  8. Nuclear Nonproliferation Treaty | National Nuclear Security Administra...

    National Nuclear Security Administration (NNSA)

    People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy ... Nuclear Nonproliferation Treaty The Treaty on the Non-Proliferation of Nuclear Weapons off ...

  9. Chernobyl Nuclear Accident | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Chernobyl Nuclear Accident Chernobyl Nuclear Accident Chernobyl, Ukraine A catastrophic nuclear accident occurs at Chernobyl Reactor 4 in the then Soviet Republic of Ukraine

  10. Nuclear Nonproliferation, International Safeguards and Nuclear...

    Office of Scientific and Technical Information (OSTI)

    Nuclear Nonproliferation, International Safeguards and Nuclear Security in the Middle East Citation Details In-Document Search Title: Nuclear Nonproliferation, International ...

  11. Fermilab | Tritium at Fermilab | Ferry Creek Results

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

    has been taken and analyzed. For samples in which a level of tritium above the limit of detection has been measured, the uncertainty of the measurement is indicated by an error...

  12. Central Ferry Lower Monumental | Open Energy Information

    Open Energy Info (EERE)

    within the project area that would pose an immediate threat to human health or the environment. Other conditions such as large dump sites, drums of unknown substances,...

  13. Pioneering Nuclear Waste Disposal

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

    ... The names below are those who were on the team on the day of first waste receipt. The U.S. ... Brannan, David Brewer, Danny Britain, Randy Britain, Stacey Brooks, Susan Brown, Barry ...

  14. SECTION III: NUCLEAR THEORY

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

    ...III-1 A.M. Mukhamedzhanov, V.Z. Goldberg, G. Rogachev, E. Johnson, S. Brown, K. Kemper, A. Momotyuk, and B. Roeder The Trojan Horse Method: an Indirect Technique...

  15. A case study of abnormal conditions and events (ACE) analysis

    SciTech Connect (OSTI)

    Reeves, R.; Hicks, G.; Karrasch, B.

    1995-08-01

    In August of 1993, EPRI initiated a project to perform an evaluation of the application of various methodologies for performing Abnormal Conditions and Events (ACE) analysis on computer systems used in nuclear plants. This paper discusses the application of ACE analysis techniques to two systems designed for the Tennessee Valley Authority (TVA) Browns Ferry Nuclear (BFN) plant. Further details can be obtained from EPRI TR-104595, ``Abnormal Conditions and Events Analysis for Instrumentation and Controls Systems`` which is scheduled for publication in December, 1994.

  16. Nuclear Counterterrorism

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2006-02-07

    The Order defines requirements for the protection of sensitive improvised nuclear device information and provides a framework to support DOE activities related to nuclear counterterrorism. (A supplemental DOE Manual, Control of and Access to Improvised Nuclear Device Information, provides requirements and procedures for protecting Sigma 20 information. The Manual is Official Use Only, and is not available on the Directives Portal. The point of contact for the Manual is Randall Weidman, NA-121.2, 202-586-4582.) Canceled by DOE O 457.1A

  17. RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; NUCLEAR MEDICINE; HISTORICAL

    Office of Scientific and Technical Information (OSTI)

    The early days Richards, P. 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; NUCLEAR MEDICINE; HISTORICAL ASPECTS; TECHNETIUM 99; COLLOIDS; MOLYBDENUM...

  18. National Nuclear Security Administration | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    National Nuclear Security Administration | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing...

  19. EIS-0435: Modification of the Groton Generation Station Interconnection Agreement, Brown County, South Dakota

    Broader source: Energy.gov [DOE]

    This EIS evaluates the environmental impacts of a proposal for DOE's Western Area Power Administration to modify its Large Generator Connection Agreement for the Groton Generation Station in Brown County, South Dakota. The modification would allow Basin Electric Power Cooperative, which operates the generation station, to produce power above the current operating limit of 50 average megawatts.

  20. nuclear navy

    National Nuclear Security Administration (NNSA)

    7%2A en Powering the Nuclear Navy http:www.nnsa.energy.govourmissionpoweringnavy

    Page...

  1. nuclear navy

    National Nuclear Security Administration (NNSA)

    7%2A en Powering the Nuclear Navy http:nnsa.energy.govourmissionpoweringnavy

    Page...

  2. Nuclear option

    SciTech Connect (OSTI)

    Olson, P.S.

    1983-03-01

    The energy demand complexion of this country is always changing and promises to change in the future. The nuclear industry is responding to changing energy demands through standards writing activities. Since the oil embargo of 1973, there has been a change in the mix of fuels contributing to energy growth in this country; virtually all of the energy growth has come from coal and nuclear power. The predicted expansion of coal use by 1985, over 1977 level, is 37%, while the use of oil is expected to decline by 17%. Use of nuclear power is expected to increase 62% from the 1977 level. The feasibility of using nuclear energy to meet the needs of the USA for electric power is discussed.

  3. Spitzer and z' secondary eclipse observations of the highly irradiated transiting brown dwarf KELT-1b

    SciTech Connect (OSTI)

    Beatty, Thomas G.; Gaudi, B. Scott; Collins, Karen A.; Kielkopf, John F.; Fortney, Jonathan; Knutson, Heather; Bruns, Jacob M.; Showman, Adam P.; Eastman, Jason; Pepper, Joshua; Siverd, Robert J.; Stassun, Keivan G.

    2014-03-10

    We present secondary eclipse observations of the highly irradiated transiting brown dwarf KELT-1b. These observations represent the first constraints on the atmospheric dynamics of a highly irradiated brown dwarf, the atmospheres of irradiated giant planets at high surface gravity, and the atmospheres of brown dwarfs that are dominated by external, rather than internal, energy. Using the Spitzer Space Telescope, we measure secondary eclipse depths of 0.195% ± 0.010% at 3.6 μm and 0.200% ± 0.012% at 4.5 μm. We also find tentative evidence for the secondary eclipse in the z' band with a depth of 0.049% ± 0.023%. These measured eclipse depths are most consistent with an atmosphere model in which there is a strong substellar hotspot, implying that heat redistribution in the atmosphere of KELT-1b is low. While models with a more mild hotspot or even with dayside heat redistribution are only marginally disfavored, models with complete heat redistribution are strongly ruled out. The eclipse depths also prefer an atmosphere with no TiO inversion layer, although a model with TiO inversion is permitted in the dayside heat redistribution case, and we consider the possibility of a day-night TiO cold trap in this object. For the first time, we compare the IRAC colors of brown dwarfs and hot Jupiters as a function of effective temperature. Importantly, our measurements reveal that KELT-1b has a [3.6] – [4.5] color of 0.07 ± 0.11, identical to that of isolated brown dwarfs of similarly high temperature. In contrast, hot Jupiters generally show redder [3.6] – [4.5] colors of ∼0.4, with a very large range from ∼0 to ∼1. Evidently, despite being more similar to hot Jupiters than to isolated brown dwarfs in terms of external forcing of the atmosphere by stellar insolation, KELT-1b appears to have an atmosphere most like that of other brown dwarfs. This suggests that surface gravity is very important in controlling the atmospheric systems of substellar mass bodies.

  4. Nuclear Data

    SciTech Connect (OSTI)

    White, Morgan C.

    2014-01-23

    PowerPoint presentation targeted for educational use. Nuclear data comes from a variety of sources and in many flavors. Understanding where the data you use comes from and what flavor it is can be essential to understand and interpret your results. This talk will discuss the nuclear data pipeline with particular emphasis on providing links to additional resources that can be used to explore the issues you will encounter.

  5. Nuclear Nonproliferation

    SciTech Connect (OSTI)

    Atkins-Duffin, C E

    2008-12-10

    With an explosion equivalent of about 20kT of TNT, the Trinity test was the first demonstration of a nuclear weapon. Conducted on July 16, 1945 in Alamogordo, NM this site is now a Registered National Historic Landmark. The concept and applicability of nuclear power was demonstrated on December 20, 1951 with the Experimental Breeder Reactor Number One (EBR-1) lit four light bulbs. This reactor is now a Registered National Historic Landmark, located near Arco, ID. From that moment forward it had been clearly demonstrated that nuclear energy has both peaceful and military applications and that the civilian and military fuel cycles can overlap. For the more than fifty years since the Atoms for Peace program, a key objective of nuclear policy has been to enable the wider peaceful use of nuclear energy while preventing the spread of nuclear weapons. Volumes have been written on the impact of these two actions on the world by advocates and critics; pundits and practioners; politicians and technologists. The nations of the world have woven together a delicate balance of treaties, agreements, frameworks and handshakes that are representative of the timeframe in which they were constructed and how they have evolved in time. Collectively these vehicles attempt to keep political will, nuclear materials and technology in check. This paper captures only the briefest abstract of the more significant aspects on the Nonproliferation Regime. Of particular relevance to this discussion is the special nonproliferation sensitivity associated with the uranium isotope separation and spent fuel reprocessing aspects of the nuclear fuel cycle.

  6. CHARACTERIZING THE BROWN DWARF FORMATION CHANNELS FROM THE INITIAL MASS FUNCTION AND BINARY-STAR DYNAMICS

    SciTech Connect (OSTI)

    Thies, Ingo; Pflamm-Altenburg, Jan; Kroupa, Pavel; Marks, Michael

    2015-02-10

    The stellar initial mass function (IMF) is a key property of stellar populations. There is growing evidence that the classical star-formation mechanism by the direct cloud fragmentation process has difficulties reproducing the observed abundance and binary properties of brown dwarfs and very-low-mass stars. In particular, recent analytical derivations of the stellar IMF exhibit a deficit of brown dwarfs compared to observational data. Here we derive the residual mass function of brown dwarfs as an empirical measure of the brown dwarf deficiency in recent star-formation models with respect to observations and show that it is compatible with the substellar part of the Thies-Kroupa IMF and the mass function obtained by numerical simulations. We conclude that the existing models may be further improved by including a substellar correction term that accounts for additional formation channels like disk or filament fragmentation. The term ''peripheral fragmentation'' is introduced here for such additional formation channels. In addition, we present an updated analytical model of stellar and substellar binarity. The resulting binary fraction and the dynamically evolved companion mass-ratio distribution are in good agreement with observational data on stellar and very-low-mass binaries in the Galactic field, in clusters, and in dynamically unprocessed groups of stars if all stars form as binaries with stellar companions. Cautionary notes are given on the proper analysis of mass functions and the companion mass-ratio distribution and the interpretation of the results. The existence of accretion disks around young brown dwarfs does not imply that these form just like stars in direct fragmentation.

  7. Nuclear Models

    SciTech Connect (OSTI)

    Fossion, Ruben [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-543, Mexico D. F., C.P. 04510 (Mexico)

    2010-09-10

    The atomic nucleus is a typical example of a many-body problem. On the one hand, the number of nucleons (protons and neutrons) that constitute the nucleus is too large to allow for exact calculations. On the other hand, the number of constituent particles is too small for the individual nuclear excitation states to be explained by statistical methods. Another problem, particular for the atomic nucleus, is that the nucleon-nucleon (n-n) interaction is not one of the fundamental forces of Nature, and is hard to put in a single closed equation. The nucleon-nucleon interaction also behaves differently between two free nucleons (bare interaction) and between two nucleons in the nuclear medium (dressed interaction).Because of the above reasons, specific nuclear many-body models have been devised of which each one sheds light on some selected aspects of nuclear structure. Only combining the viewpoints of different models, a global insight of the atomic nucleus can be gained. In this chapter, we revise the the Nuclear Shell Model as an example of the microscopic approach, and the Collective Model as an example of the geometric approach. Finally, we study the statistical properties of nuclear spectra, basing on symmetry principles, to find out whether there is quantum chaos in the atomic nucleus. All three major approaches have been rewarded with the Nobel Prize of Physics. In the text, we will stress how each approach introduces its own series of approximations to reduce the prohibitingly large number of degrees of freedom of the full many-body problem to a smaller manageable number of effective degrees of freedom.

  8. Nuclear pursuits

    SciTech Connect (OSTI)

    Not Available

    1993-05-01

    This table lists quantities of warheads (in stockpile, peak number per year, total number built, number of known test explosions), weapon development milestones (developers of the atomic bomb and hydrogen bomb, date of first operational ICBM, first nuclear-powered naval SSN in service, first MIRVed missile deployed), and testing milestones (first fission test, type of boosted fission weapon, multistage thermonuclear test, number of months from fission bomb to multistage thermonuclear bomb, etc.), and nuclear infrastructure (assembly plants, plutonium production reactors, uranium enrichment plants, etc.). Countries included in the tally are the United States, Soviet Union, Britain, France, and China.

  9. Defense Nuclear Facility | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Defense Nuclear Facility NNSA's safety office accredited and recognized for leadership in safe operation of defense nuclear facilities Part of NNSA's commitment to maintaining the nation's safe, secure, and effective nuclear deterrent are relentlessly high standards for technically capable nuclear enterprise personnel qualifications for all aspects of Defense Nuclear Facility operations. In December 2015, the Department of Energy

  10. Nuclear Controls | National Nuclear Security Administration | (NNSA)

    National Nuclear Security Administration (NNSA)

    Control Nuclear Controls Challenge: Detect/deter illicit transfers of nuclear/dual-use materials, technology, and commodities. Solution: Build domestic and international capacity to implement and meet export control obligations. Related Topics international security international security policy NIS nuclear controls safeguards safeguards and security verification Related News Nuclear Verification International Nuclear Safeguards Nonproliferation Policy Nonproliferation and Arms Control NIS

  11. Nuclear Verification | National Nuclear Security Administration | (NNSA)

    National Nuclear Security Administration (NNSA)

    Control Nuclear Verification Challenge: Maintain the U.S. ability to monitor and verify nuclear reduction agreements and detect violations of treaties and other nuclear nonproliferation commitments. Solution: Develop and deploy measures to ensure verifiable compliance with treaties and other international agreements, implement regimes to reduce nuclear weapons, and detect and dismantle undeclared nuclear programs. Specific subprogram activities include: Implementing current and developing future

  12. nuclear controls | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    controls Nuclear Verification Challenge: Maintain the U.S. ability to monitor and verify nuclear reduction agreements and detect violations of treaties and other nuclear nonproliferation commitments. Solution: Develop and deploy measures to ensure verifiable compliance with treaties and other international agreements,... International Nuclear Safeguards Challenge: Detect/deter undeclared nuclear materials and activities. Solution: Build capacity of the International Atomic Energy Agency and

  13. Nuclear Science & Technology

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

    Nuclear Science & Technology Nuclear Science & Technology1354608000000Nuclear Science & TechnologySome of these resources are LANL-only and will require Remote Access. No...

  14. 2013 Nuclear Workforce Development ...

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

    Nuclear Energy Impact Topics: Today's & Tomorrow's New Nuclear Energy Construction & the Workforce Outlook Current New Nuclear Energy Construction Projects Small Modular...

  15. NUCLEAR REACTOR

    DOE Patents [OSTI]

    Starr, C.

    1963-01-01

    This patent relates to a combination useful in a nuclear reactor and is comprised of a casing, a mass of graphite irapregnated with U compounds in the casing, and at least one coolant tube extending through the casing. The coolant tube is spaced from the mass, and He is irtroduced irto the space between the mass and the coolant tube. (AEC)

  16. Palynostratigraphy of the Erkovtsy field of brown coal (the Zeya-Bureya sedimentary basin)

    SciTech Connect (OSTI)

    Kezina, T.V.; Litvinenko, N.D.

    2007-08-15

    The Erkovtsy brown coal field in the northwestern Zeya-Bureya sedimentary basin (129-130{sup o}E, 46-47{sup o}N) is structurally confined to southern flank of the Mesozoic-Cenozoic Belogor'e depression. The verified stratigraphic scheme of the coalfield sedimentary sequence is substantiated by palynological data on core samples from 18 boreholes sampled in the course of detailed prospecting and by paleobotanical analysis of sections in the Yuzhnyi sector of the coalfield (data of 1998 by M.A. Akhmetiev and S.P. Manchester). Sections of the Erkovtsy, Arkhara-Boguchan, and Raichikha brown-coal mines are correlated. Stratigraphic subdivisions distinguished in the studied sedimentary succession are the middle and upper Tsagayan subformations (the latter incorporating the Kivda Beds), Raichikha, Mukhino, Buzuli, and Sazanka formations.

  17. Dr. Benjamin L. Brown | U.S. DOE Office of Science (SC)

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

    Benjamin L. Brown Deputy Director for Science Programs Deputy Director Home Mission & Functions Deputy Director Biography Organization Staff Presentations & Testimony Federal Advisory Committees Committees of Visitors Contact Information Deputy Director for Science Programs U.S. Department of Energy SC-2/Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 F: (202) 586-4120 E: Email Us U.S. Department of Energy SC-2/Germantown Building 1000 Independence

  18. Methane, carbon monoxide, and ammonia in brown dwarfs and self-luminous giant planets

    SciTech Connect (OSTI)

    Zahnle, Kevin J.; Marley, Mark S. E-mail: Mark.S.Marley@NASA.gov

    2014-12-10

    We address disequilibrium abundances of some simple molecules in the atmospheres of solar composition brown dwarfs and self-luminous extrasolar giant planets using a kinetics-based one-dimensional atmospheric chemistry model. Our approach is to use the full kinetics model to survey the parameter space with effective temperatures between 500 K and 1100 K. In all of these worlds, equilibrium chemistry favors CH{sub 4} over CO in the parts of the atmosphere that can be seen from Earth, but in most disequilibrium favors CO. The small surface gravity of a planet strongly discriminates against CH{sub 4} when compared to an otherwise comparable brown dwarf. If vertical mixing is like Jupiter's, the transition from methane to CO occurs at 500 K in a planet. Sluggish vertical mixing can raise this to 600 K, but clouds or more vigorous vertical mixing could lower this to 400 K. The comparable thresholds in brown dwarfs are 1100 100 K. Ammonia is also sensitive to gravity, but, unlike CH{sub 4}/CO, the NH{sub 3}/N{sub 2} ratio is insensitive to mixing, which makes NH{sub 3} a potential proxy for gravity. HCN may become interesting in high-gravity brown dwarfs with very strong vertical mixing. Detailed analysis of the CO-CH{sub 4} reaction network reveals that the bottleneck to CO hydrogenation goes through methanol, in partial agreement with previous work. Simple, easy to use quenching relations are derived by fitting to the complete chemistry of the full ensemble of models. These relations are valid for determining CO, CH{sub 4}, NH{sub 3}, HCN, and CO{sub 2} abundances in the range of self-luminous worlds we have studied, but may not apply if atmospheres are strongly heated at high altitudes by processes not considered here (e.g., wave breaking).

  19. Defense Nuclear Nonproliferation | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Defense Nuclear Nonproliferation NNSA Announces Elimination of Highly Enriched Uranium (HEU) from Indonesia All of Southeast Asia Now HEU-Free (WASHINGTON, D.C.) - The U.S. Department of Energy's National Nuclear Security Administration (DOE/NNSA), Indonesian Nuclear Industry, LLC (PT INUKI), the National Nuclear Energy Agency (BATAN), and the Nuclear Energy Regulatory Agency (BAPETEN) of the... NNSA program strengthens national security from afar The Nuclear Smuggling Detection and Deterrence

  20. Nuclear Security Enterprise | National Nuclear Security Administration...

    National Nuclear Security Administration (NNSA)

    Nuclear Security Enterprise The Nuclear Security Enterprise ... efficient 21stcentury NSE with less environmental impact. ... is referred to as Stockpile Stewardship and Management. ...

  1. Nuclear / Radiological Advisory Team | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Nuclear Radiological Advisory Team (NRAT) provides an emergency response capability for on-scene scientific and technical advice for both domestic and international nuclear or ...

  2. Nuclear Incident Team | National Nuclear Security Administration...

    National Nuclear Security Administration (NNSA)

    Incident Team NNSA houses the Nuclear Incident Team (NIT), which is responsible for deploying assets at the request of coordinating agencies in response to a nuclear or ...

  3. Nuclear Energy Systems Laboratory (NESL) / Transient Nuclear...

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

    Transient Nuclear Fuels Testing - Sandia Energy Energy Search Icon Sandia Home Locations ... Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & ...

  4. nuclear science week | National Nuclear Security Administration...

    National Nuclear Security Administration (NNSA)

    science week Nuclear Science Week releases 2015 Impact Report and 2016 Request for Proposal Last week the Nuclear Science Week (NSW) National Steering Committee released its impact ...

  5. Nuclear and Radiological Material Security | National Nuclear...

    National Nuclear Security Administration (NNSA)

    This includes NNSA's work to advance physical protection standards for nuclear facilities and to strengthen nuclear safeguards, which are criteria for the physical security and the ...

  6. Nuclear Forensics | National Nuclear Security Administration...

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

    Nuclear Forensics Forensics Operations The National Technical Nuclear Forensics (NTNF) program is a Homeland Security Council and National Security Council-sponsored policy ...

  7. Nuclear Security Enterprise | National Nuclear Security Administration

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

    About Our Programs Defense Programs Nuclear Security Enterprise The Nuclear Security Enterprise (NSE) mission is to ensure the Nation sustains a safe, secure, and effective ...

  8. Nuclear Verification | National Nuclear Security Administration

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

    Challenge: Maintain the U.S. ability to monitor and verify nuclear reduction agreements and detect violations of treaties and other nuclear nonproliferation commitments. Solution: ...

  9. Nuclear Suppliers Group & Regimes | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency ...

  10. Nuclear Controls | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Controls | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy ...

  11. Nuclear structure and nuclear reactions | Argonne Leadership...

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

    Nuclear structure and nuclear reactions PI Name: James Vary PI Email: jvary@iastate.edu Institution: Iowa State University Allocation Program: INCITE Allocation Hours at ALCF: 15 ...

  12. nuclear emergency | National Nuclear Security Administration

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

    Apply for Our Jobs Our Jobs Working at NNSA Blog Home nuclear emergency nuclear emergency Fukushima: Five Years Later After the March 11, 2011, Japan earthquake, tsunami, and ...

  13. Nuclear | Department of Energy

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

    Nuclear Nuclear Radioisotope Power Systems, a strong partnership between the Energy Department's Office of Nuclear Energy and NASA, has been providing the energy for deep space exploration. Nuclear power is the use of sustained nuclear fission to generate heat and electricity. Nuclear power plants provide about 6 percent of the world's energy and 13-14 percent of the world's electricity. Featured Moving Forward to Address Nuclear Waste Storage and Disposal Three trucks transport nuclear waste

  14. NUCLEAR REACTORS

    DOE Patents [OSTI]

    Long, E.; Ashby, J.W.

    1958-09-16

    ABS>A graphite moderator structure is presented for a nuclear reactor compriscd of an assembly of similarly orientated prismatic graphite blocks arranged on spaced longitudinal axes lying in common planes wherein the planes of the walls of the blocks are positioned so as to be twisted reintive to the planes of said axes so thatthe unlmpeded dtrect paths in direction wholly across the walls of the blocks are limited to the width of the blocks plus spacing between the blocks.

  15. NUCLEAR REACTOR

    DOE Patents [OSTI]

    Anderson, C.R.

    1962-07-24

    A fluidized bed nuclear reactor and a method of operating such a reactor are described. In the design means are provided for flowing a liquid moderator upwardly through the center of a bed of pellets of a nentron-fissionable material at such a rate as to obtain particulate fluidization while constraining the lower pontion of the bed into a conical shape. A smooth circulation of particles rising in the center and falling at the outside of the bed is thereby established. (AEC)

  16. NUCLEAR REACTOR

    DOE Patents [OSTI]

    Grebe, J.J.

    1959-07-14

    High temperature reactors which are uniquely adapted to serve as the heat source for nuclear pcwered rockets are described. The reactor is comprised essentially of an outer tubular heat resistant casing which provides the main coolant passageway to and away from the reactor core within the casing and in which the working fluid is preferably hydrogen or helium gas which is permitted to vaporize from a liquid storage tank. The reactor core has a generally spherical shape formed entirely of an active material comprised of fissile material and a moderator material which serves as a diluent. The active material is fabricated as a gas permeable porous material and is interlaced in a random manner with very small inter-connecting bores or capillary tubes through which the coolant gas may flow. The entire reactor is divided into successive sections along the direction of the temperature gradient or coolant flow, each section utilizing materials of construction which are most advantageous from a nuclear standpoint and which at the same time can withstand the operating temperature of that particular zone. This design results in a nuclear reactor characterized simultaneously by a minimum critiral size and mass and by the ability to heat a working fluid to an extremely high temperature.

  17. Nuclear Detonation Detection | National Nuclear Security Administration |

    National Nuclear Security Administration (NNSA)

    (NNSA) Research and Development Nuclear Detonation Detection The Office of Nuclear Detonation Detection (NDD) develops and provide continuous, global capabilities to detect foreign nuclear weapon detonations, including for test ban treaty monitoring needs and military requirements. These efforts are aligned along three functional areas: Space-based Detection of Nuclear Detonations: Develops and builds space sensors for the nation's operational nuclear test treaty monitoring and Integrated

  18. nuclear threat science | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    threat science Counterterrorism Counterterrorism Policy and Cooperation Nuclear Threat Science Office of Nuclear Threat Science The Office of Nuclear Threat Science is responsible for overseeing the Nuclear Counterterrorism Program, an NNSA program that sustains specialized expertise and integrates and executes key activities to advise and enable technical aspects of U.S. Government nuclear counterterrorism and... Office of Counterterrorism Policy and Cooperation The 2011 National Strategy for

  19. nuclear science | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    science Nuclear Science Week releases 2015 Impact Report and 2016 Request for Proposal Last week the Nuclear Science Week (NSW) National Steering Committee released its impact report from the 2015 event, detailing the many ways people were educated about all things nuclear as a result of the event. Nuclear Science Week is an international weeklong celebration to focus interest on... Consortium Led by University of California, Berkeley Awarded $25M NNSA Grant for Nuclear Science and Security

  20. NUCLEAR REACTORS

    DOE Patents [OSTI]

    Long, E.; Ashley, J.W.

    1958-12-16

    A graphite moderator structure is described for a gas-cooled nuclear reactor having a vertical orlentation wherein the structure is physically stable with regard to dlmensional changes due to Wigner growth properties of the graphite, and leakage of coolant gas along spaces in the structure is reduced. The structure is comprised of stacks of unlform right prismatic graphite blocks positioned in layers extending in the direction of the lengths of the blocks, the adjacent end faces of the blocks being separated by pairs of tiles. The blocks and tiles have central bores which are in alignment when assembled and are provided with cooperatlng keys and keyways for physical stability.

  1. NUCLEAR REACTOR

    DOE Patents [OSTI]

    Young, G.

    1963-01-01

    This patent covers a power-producing nuclear reactor in which fuel rods of slightly enriched U are moderated by heavy water and cooled by liquid metal. The fuel rods arranged parallel to one another in a circle are contained in a large outer closed-end conduit that extends into a tank containing the heavy water. Liquid metal is introduced into the large conduit by a small inner conduit that extends within the circle of fuel rods to a point near the lower closed end of the outer conduit. (AEC) Production Reactors

  2. Nuclear Data Links

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

    Links to Other Useful Sites Online Journals Institutions and Programs Related to Nuclear Physics U.S. Nuclear Data Program: All evaluated nuclear data supported by the U.S. Department of Energy. National Nuclear Data Center: Brookhaven National Laboratory; Evaluated Nuclear Structure Data Files (ENSDF), Nuclear Science References (NSR) and other databases. Isotopes Project: (E.O.L. Berkeley National Laboratory) Table of Isotopes, Isotope Explorer, XUNDL, Nuclear Data Dissemination Homepage, and

  3. Fifty years of nuclear fission: Nuclear data and measurements...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Fifty years of nuclear fission: Nuclear data and measurements series Citation Details In-Document Search Title: Fifty years of nuclear fission: Nuclear data and ...

  4. Fifty years of nuclear fission: Nuclear data and measurements...

    Office of Scientific and Technical Information (OSTI)

    Fifty years of nuclear fission: Nuclear data and measurements series Citation Details In-Document Search Title: Fifty years of nuclear fission: Nuclear data and measurements series ...

  5. Mid-infrared followup of cold brown dwarfs: diversity in age, mass and metallicity

    SciTech Connect (OSTI)

    Saumon, Didier; Leggett, Sandy K; Burningham, Ben; Marley, Mark S; Waren, S J; Jones, H R A; Pinfield, D J; Smart, R L

    2009-01-01

    We present new Spitzer IRAC [3.6], [4.5], [5.8] and [8.0] photometry of nine very late-type T dwarfs. Combining this with previously published photometry, we investigate trends with type and color that are useful for both the planning and interpretation of infrared surveys designed to discover the coldest T or Y dwarfs. Brown dwarfs with effective temperature (T{sub eff}) below 700 K emit more than half their flux at wavelengths longer than 3 {micro}m, and the ratio of the mid-infrared flux to the near-infrared flux becomes very sensitive to T{sub eff} at these low temperatures. We confirm that the color H (1.6 {micro}m) - [4.5] is a good indicator of T{sub eff} with a relatively weak dependence on metallicity and gravity. Conversely, the colors H - K (2.2 {micro}m) and [4.5] - [5.8] are sensitive to metallicity and gravity. Thus near- and mid-infrared photometry provide useful indicators of the fundamental properties of brown dwarfs, and if temperature and gravity are known, then mass and age can be reliably determined from evolutionary models. There are twelve dwarfs currently known with H - [4.5] > 3.0, and {approx} 500 < T{sub eff} K {approx}< 800, which we examine in detail. The ages of the dwarfs in the sample range from very young (0.1 - 1.0 Gyr) to relatively old (3 - 12 Gyr). The mass range is possibly as low as 5 Jupiter masses to up to 70 Jupiter masses, i.e. near the hydrogen burning limit. The metallicities also span a large range, from [m/H]= -0.3 to [m/H]= +0.2. The small number of T8 - T9 dwarfs found in the UKIRT Infrared Deep Sky Survey to date appear to be predominantly young low-mass dwarfs. Accurate mid-infrared photometry of cold brown dwarfs is essentially impossible from the ground, and extensions to the mid-infrared space missions warm-Spitzer and WISE are desirable in order to obtain the vital mid-infrared data for cold brown dwarfs, and to discover more of these rare objects.

  6. Trenton strata in western Illinois Basin, Brown and Schuyler Counties, Illinois

    SciTech Connect (OSTI)

    Pochel, R.M.

    1984-12-01

    Trenton strata in the western Illinois basin are very good prospects for oil exploration. Much drilling has been done in the area but, as yet, no producing wells have been completed. Oil stains and some tars have been found in some samples from most wells. The Trenton in the area of Brown and Schuyler Counties is a fine-grained limestone that underlies the Maquoketa Shale at an average depth of 800 ft (244 m). Because of its position near the edge of the Illinois basin, the stratigraphy varies considerably and inconsistencies are present in most samples viewed.

  7. I. V. Khalzov, B. P. Brown, F. Ebrahimi, D. D. Schnack, and C. B. Forest

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

    simulation of laminar plasma dynamos in a cylindrical von Kármán flow I. V. Khalzov, B. P. Brown, F. Ebrahimi, D. D. Schnack, and C. B. Forest Citation: Phys. Plasmas 18, 032110 (2011); doi: 10.1063/1.3559472 View online: http://dx.doi.org/10.1063/1.3559472 View Table of Contents: http://pop.aip.org/resource/1/PHPAEN/v18/i3 Published by the American Institute of Physics. Additional information on Phys. Plasmas Journal Homepage: http://pop.aip.org/ Journal Information:

  8. I. V. Khalzov, B. P. Brown, N. Katz, and C. B. Forest

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

    the Parker instability in a rotating plasma screw pinch I. V. Khalzov, B. P. Brown, N. Katz, and C. B. Forest Citation: Phys. Plasmas 19, 022107 (2012); doi: 10.1063/1.3684240 View online: http://dx.doi.org/10.1063/1.3684240 View Table of Contents: http://pop.aip.org/resource/1/PHPAEN/v19/i2 Published by the American Institute of Physics. Additional information on Phys. Plasmas Journal Homepage: http://pop.aip.org/ Journal Information: http://pop.aip.org/about/about_the_journal Top downloads:

  9. NUCLEAR REACTOR

    DOE Patents [OSTI]

    Grebe, J.J.

    1959-12-15

    A reactor which is particularly adapted tu serve as a heat source for a nuclear powered alrcraft or rocket is described. The core of this reactor consists of a porous refractory modera;or body which is impregnated with fissionable nuclei. The core is designed so that its surface forms tapered inlet and outlet ducts which are separated by the porous moderator body. In operation a gaseous working fluid is circulated through the inlet ducts to the surface of the moderator, enters and passes through the porous body, and is heated therein. The hot gas emerges into the outlet ducts and is available to provide thrust. The principle advantage is that tremendous quantities of gas can be quickly heated without suffering an excessive pressure drop.

  10. Nuclear reactor

    DOE Patents [OSTI]

    Wade, Elman E.

    1979-01-01

    A nuclear reactor including two rotatable plugs and a positive top core holddown structure. The top core holddown structure is divided into two parts: a small core cover, and a large core cover. The small core cover, and the upper internals associated therewith, are attached to the small rotating plug, and the large core cover, with its associated upper internals, is attached to the large rotating plug. By so splitting the core holddown structures, under-the-plug refueling is accomplished without the necessity of enlarging the reactor pressure vessel to provide a storage space for the core holddown structure during refueling. Additionally, the small and large rotating plugs, and their associated core covers, are arranged such that the separation of the two core covers to permit rotation is accomplished without the installation of complex lifting mechanisms.

  11. NUCLEAR REACTOR

    DOE Patents [OSTI]

    Miller, H.I.; Smith, R.C.

    1958-01-21

    This patent relates to nuclear reactors of the type which use a liquid fuel, such as a solution of uranyl sulfate in ordinary water which acts as the moderator. The reactor is comprised of a spherical vessel having a diameter of about 12 inches substantially surrounded by a reflector of beryllium oxide. Conventionnl control rods and safety rods are operated in slots in the reflector outside the vessel to control the operation of the reactor. An additional means for increasing the safety factor of the reactor by raising the ratio of delayed neutrons to prompt neutrons, is provided and consists of a soluble sulfate salt of beryllium dissolved in the liquid fuel in the proper proportion to obtain the result desired.

  12. TUNL Nuclear Data Evaluation Group

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

    TUNL Nuclear Data Evaluation Group As a part of the United States Nuclear Data Network and the international Nuclear Structure and Decay Data Evaluators' Network, the Nuclear Data...

  13. Brown - leaves

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

    and Opportunities Low Income Energy Efficiency Workgroup November 6, 2014 Sarah F. Moore, Residential Lead Courtney Dale, Residential Weatherization B O N N E V I L L E P O W...

  14. Brown - leaves

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

    Oct 14 th * Award decision by Nov 6 th * Presentation of New Program Thurs, Nov 13 th . * Utility opt-in Nov 7 - Dec 5 th * New program launch - April 1, 2015 12 B O N N E V I L L...

  15. Nuclear Explosive Safety

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2014-07-10

    The Order establishes requirements to implement the nuclear explosive safety (NES) elements of DOE O 452.1E, Nuclear Explosive and Weapon Surety Program, for routine and planned nuclear explosive operations (NEOs).

  16. Nuclear Materials Disposition

    Broader source: Energy.gov [DOE]

    In fulfilling its mission, EM frequently manages and completes disposition of surplus nuclear materials and spent nuclear fuel.  These are not waste. They are nuclear materials no longer needed for...

  17. Office of Nuclear Safety

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Office of Nuclear Safety establishes nuclear safety requirements and expectations for the Department to ensure protection of workers and the public from the hazards associated with nuclear operations with all Department operations.

  18. DISCOVERY OF A ?250 K BROWN DWARF AT 2 pc FROM THE SUN

    SciTech Connect (OSTI)

    Luhman, K. L.

    2014-05-10

    Through a previous analysis of multi-epoch astrometry from the Wide-field Infrared Survey Explorer (WISE), I identified WISE J085510.83071442.5 as a new high proper motion object. By combining astrometry from WISE and the Spitzer Space Telescope, I have measured a proper motion of 8.1 0.1'' yr{sup 1} and a parallax of 0.454 0.045'' (2.20{sub ?0.20}{sup +0.24} pc) for WISE J085510.83071442.5, giving it the third highest proper motion and the fourth largest parallax of any known star or brown dwarf. It is also the coldest known brown dwarf based on its absolute magnitude at 4.5 ?m and its color in [3.6]-[4.5]. By comparing M {sub 4.5} with the values predicted by theoretical evolutionary models, I estimate an effective temperature of 225-260 K and a mass of 3-10 M {sub Jup} for the age range of 1-10 Gyr that encompasses most nearby stars.

  19. Relation between combustion heat and chemical wood composition during white and brown rot

    SciTech Connect (OSTI)

    Dobry, J.; Dziurzynski, A.; Rypacek, V.

    1986-01-01

    Samples of beech and spruce wood were incubated with the white rot fungi Pleurotus ostreatus and Lentinus tigrinus and the brown rot fungi Fomitopsis pinicola and Serpula lacrymans (S. lacrimans) for four months. Decomposition (expressed as percent weight loss) and amounts of holocellulose, lignin, humic acids (HU), hymatomelanic acids (HY) and fulvo acids (FU) were determined and expressed in weight percent. Combustion heat of holocellulose and lignin was determined in healthy wood and in specimens where decomposition was greater than 50%. During white rot decomposition, combustion heat was unchanged even at high decomposition and the relative amounts of holocellulose and lignin remained the same. Total amounts of HU, HY and FU increased during the initial stages and stabilized at 20%. The content of HU plus HY was negligible even at the highest degree of decomposition. During brown rot decomposition, combustion heat was unchanged only in the initial stages, it increased continously with increasing rot. Lignin content was unchanged in the initial stages and increased after 30% weight loss. Total amounts of HU, HY and FU increased continuously, reaching higher values than in white rot decomposition; there were differences between the two species. Biosynthesis of HU plus HY began when weight loss reached 30%; there were differences in absolute and relative amounts between species. 24 references.

  20. Isolation of laccase gene-specific sequences from white rot and brown rot fungi by PCR

    SciTech Connect (OSTI)

    D`Souza, T.M.; Boominathan, K.; Reddy, C.A.

    1996-10-01

    Degenerate primers corresponding to the consensus sequences of the copper-binding regions in the N-terminal domains of known basidiomycete laccases were used to isolate laccase gene-specific sequences from strains representing nine genera of wood rot fungi. All except three gave the expected PCR product of about 200 bp. Computer searches of the databases identified the sequences of each of the PCR product of about 200 bp. Computer searches of the databases identified the sequence of each of the PCR products analyzed as a laccase gene sequence, suggesting the specificity of the primers. PCR products of the white rot fungi Ganoderma lucidum, Phlebia brevispora, and Trametes versicolor showed 65 to 74% nucleotide sequence similarity to each other; the similarity in deduced amino acid sequences was 83 to 91%. The PCR products of Lentinula edodes and Lentinus tigrinus, on the other hand, showed relatively low nucleotide and amino acid similarities (58 to 64 and 62 to 81%, respectively); however, these similarities were still much higher than when compared with the corresponding regions in the laccases of the ascomycete fungi Aspergillus nidulans and Neurospora crassa. A few of the white rot fungi, as well as Gloeophyllum trabeum, a brown rot fungus, gave a 144-bp PCR fragment which had a nucleotide sequence similarity of 60 to 71%. Demonstration of laccase activity in G. trabeum and several other brown rot fungi was of particular interest because these organisms were not previously shown to produce laccases. 36 refs., 6 figs., 2 tabs.

  1. A HYBRID SCENARIO FOR THE FORMATION OF BROWN DWARFS AND VERY LOW MASS STARS

    SciTech Connect (OSTI)

    Basu, Shantanu; Vorobyov, Eduard I. E-mail: eduard.vorobiev@univie.ac.at

    2012-05-01

    We present a calculation of protostellar disk formation and evolution in which gaseous clumps (essentially, the first Larson cores formed via disk fragmentation) are ejected from the disk during the early stage of evolution. This is a universal process related to the phenomenon of ejection in multiple systems of point masses. However, it occurs in our model entirely due to the interaction of compact, gravitationally bound gaseous clumps and is free from the smoothing-length uncertainty that is characteristic of models using sink particles. Clumps that survive ejection span a mass range of 0.08-0.35 M{sub Sun }, and have ejection velocities 0.8 {+-} 0.35 km s{sup -1}, which are several times greater than the escape speed. We suggest that, upon contraction, these clumps can form substellar or low-mass stellar objects with notable disks, or even close-separation very low mass binaries. In this hybrid scenario, allowing for ejection of clumps rather than finished protostars/proto-brown-dwarfs, disk formation and the low velocity dispersion of low-mass objects are naturally explained, while it is also consistent with the observation of isolated low-mass clumps that are ejection products. We conclude that clump ejection and the formation of isolated low-mass stellar and substellar objects is a common occurrence, with important implications for understanding the initial mass function, the brown dwarf desert, and the formation of stars in all environments and epochs.

  2. Nuclear Quadrupole Moments and Nuclear Shell Structure

    DOE R&D Accomplishments [OSTI]

    Townes, C. H.; Foley, H. M.; Low, W.

    1950-06-23

    Describes a simple model, based on nuclear shell considerations, which leads to the proper behavior of known nuclear quadrupole moments, although predictions of the magnitudes of some quadrupole moments are seriously in error.

  3. Nuclear Incident Team | National Nuclear Security Administration

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

    Apply for Our Jobs Our Jobs Working at NNSA Blog Home Nuclear Incident Team Nuclear Incident Team Fukushima: Five Years Later After the March 11, 2011, Japan earthquake, tsunami, ...

  4. Nuclear Energy Programs

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

    Services » Nuclear Energy Advisory Committee Nuclear Energy Advisory Committee The Nuclear Energy Advisory Committee (NEAC), formerly the Nuclear Energy Research Advisory Committee (NERAC), was established on October 1, 1998, to provide independent advice to the Office of Nuclear Energy (NE) on complex science and technical issues that arise in the planning, managing, and implementation of DOE's nuclear energy program. NEAC periodically reviews the elements of the NE program and based on these

  5. Civilian Nuclear Program

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

    Civilian Nuclear Program Civilian Nuclear Program Los Alamos is committed to using its advanced nuclear expertise and unique facilities to meet the civilian nuclear national security demands of the future. CONTACT US Program Director Venkateswara Rao Dasari (Rao) (505) 667-5098 Email Los Alamos partners extensively with other laboratories, universities, industry, and the international nuclear community to address real-world technical challenges The Civilian Nuclear Program is the focal point for

  6. Nuclear & Radiological Material Removal | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    & Radiological Material Removal | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation...

  7. International Nuclear Security | National Nuclear Security Administration |

    National Nuclear Security Administration (NNSA)

    (NNSA) International Nuclear Security The International Nuclear Security program collaborates with partners world-wide to improve the security of proliferation-sensitive materials, particularly weapons-usable nuclear material in both civilian and non-civilian use in key countries. As part of these efforts, INS works with partner countries to: Upgrade and sustain physical security and material control and accounting systems; Develop national-level nuclear security infrastructure in areas such

  8. Nuclear Materials Information Program | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Information Program | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the...

  9. Nuclear Security Summit | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

  10. Nuclear Forensics | National Nuclear Security Administration | (NNSA)

    National Nuclear Security Administration (NNSA)

    Nuclear Forensics Forensics Operations The National Technical Nuclear Forensics (NTNF) program is a Homeland Security Council and National Security Council-sponsored policy initiative that establishes federal agency missions and institutionalizes roles and responsibilities to enable operational support for materials, pre-detonation device, and post-detonation nuclear or radiological forensics programs with the broader goal of attribution. Technical nuclear forensics utilizes the data from

  11. Nuclear Physics: Campaigns

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

    Free-Electron Laser (FEL) Medical Imaging Physics Topics Campaigns The Structure of the Nuclear Building Blocks The Structure of Nuclei Symmetry Tests in Nuclear Physics Meetings ...

  12. 2013 Nuclear Workforce Development ...

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

    Practice in Nuclear Medicine Radiopharmacy Patient Care Medical Imaging & Computers Moderator: Deborah M. Gibbs, MEd, PET, CNMT Lead Nuclear Medicine PET Facility...

  13. Advanced Nuclear Energy

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

    Nuclear Energy - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us ... Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & ...

  14. Nuclear Data Links

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

    Links to Useful Online Nuclear Physics Journals Important Online Resources Science Direct ... Elsevier Physics Online: Nuclear Physics A, B, Physics Repots, Physics Letters B and more. ...

  15. Nuclear Controls Checklist

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

    Nuclear Controls Yes No 1) Is your Facility involved in the research on or development, design, manufacture, construction, testing or maintenance of any nuclear explosive ...

  16. Nuclear Energy Advisory Committee

    Broader source: Energy.gov [DOE]

    The Nuclear Energy Advisory Committee (NEAC), formerly the Nuclear Energy Research Advisory Committee (NERAC), was established on October 1, 1998, to provide independent advice to the Office of...

  17. Nuclear | Open Energy Information

    Open Energy Info (EERE)

    High construction costs for nuclear plants, especially relative to natural-gas-fired plants, make other options for new nuclear capacity uneconomical even in the alternative...

  18. Nuclear Security Summit

    National Nuclear Security Administration (NNSA)

    Joint Research Centre and the United States Department of Energy's National Nuclear Security Administration regarding the reduction of excess nuclear material http:...

  19. Sandia Energy Nuclear Energy

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

    afety-expert-elected-to-national-academy-of-engineeringfeed 0 Sandia Teaches Nuclear Safety Course http:energy.sandia.govsandia-teaches-nuclear-safety-course http:...

  20. Nuclear Energy University Programs

    Energy Savers [EERE]

    (NSUF) Gateway to Nuclear Research J. Rory Kennedy Director, NSUF Idaho National ... to NSUF (Integration into CINR) * Nuclear Energy Infrastructure Database (NEID) * ...

  1. Sandia's Nuclear Weapons Mission

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

    Nuclear Weapons Mission Ensuring that the nation's stockpile is safe, secure and effective, and that it meets military requirements America's Nuclear Weapons Systems Engineering ...

  2. Nuclear War Against Cancer

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

    Nuclear War Against Cancer 1663 Los Alamos science and technology magazine Latest Issue:March 2016 past issues All Issues submit Nuclear War Against Cancer Los Alamos, in ...

  3. Nuclear weapons modernizations

    SciTech Connect (OSTI)

    Kristensen, Hans M.

    2014-05-09

    This article reviews the nuclear weapons modernization programs underway in the world's nine nuclear weapons states. It concludes that despite significant reductions in overall weapons inventories since the end of the Cold War, the pace of reductions is slowing - four of the nuclear weapons states are even increasing their arsenals, and all the nuclear weapons states are busy modernizing their remaining arsenals in what appears to be a dynamic and counterproductive nuclear competition. The author questions whether perpetual modernization combined with no specific plan for the elimination of nuclear weapons is consistent with the nuclear Non-Proliferation Treaty and concludes that new limits on nuclear modernizations are needed.

  4. Advancing Global Nuclear Security

    Broader source: Energy.gov [DOE]

    Today world leaders gathered at The Hague for the Nuclear Security Summit, a meeting to measure progress and take action to secure sensitive nuclear materials.

  5. Nuclear Energy Systems Lab

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

    Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management ...

  6. NUCLEAR REGULATORY COMMISSION

    Office of Environmental Management (EM)

    NUCLEAR REGULATORY COMMISSION 10 CFR Parts 71 and 73 RIN 3150-AG41 Advance Notification to Native American Tribes of Transportation of Certain Types of Nuclear Waste AGENCY: ...

  7. Nuclear Safety Regulatory Framework

    Energy Savers [EERE]

    Authority and responsibility to regulate nuclear safety at DOE facilities 10 CFR 830 10 CFR 835 10 CFR 820 Regulatory Implementation Nuclear Safety Radiological Safety Procedural ...

  8. National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    U.S. Department of Energy National Nuclear Security Administration Federal Equal ... A. Name and Address of Agency National Nuclear Security Administration Office of ...

  9. National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Nuclear Security Administration FY 2013 PER Babcock & Wilcox Technical Services Y-12, LLC Performance Evaluation Report NNSA Production Office Y-12 Nuclear Security Complex ...

  10. Nuclear Materials Science

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

    Nuclear Materials Science Our multidisciplinary expertise comprises the core actinide materials science and metallurgical capability within the nuclear weapons production and ...

  11. National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    U.S. Department of Energy National Nuclear Security Administration Federal Equal ... A. Name and Address of Agency National Nuclear Security Administration 1000 Independence ...

  12. National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    15 National Nuclear Security Administration FY 2013 PER Babcock & Wilcox Technical ... The National Nuclear Security Administration (NNSA) Production Office (NPO) took into ...

  13. Sandia Energy - Nuclear Energy

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

    Sandia's Brayton-Cycle Turbine Boosts Small Nuclear Reactor Efficiency Energy, Energy Efficiency, News, News & Events, Nuclear Energy Sandia's Brayton-Cycle Turbine Boosts Small...

  14. International Nuclear Safeguards | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    | (NNSA) International Nuclear Safeguards Challenge: Detect/deter undeclared nuclear materials and activities. Solution: Build capacity of the International Atomic Energy Agency and Member States to implement and meet safeguards obligations. The Office of International Nuclear Safeguards develops and supports the policies, concepts, technologies, expertise, and international safeguards infrastructure necessary to strengthen and sustain the international safeguards system as it evolves to

  15. nuclear enterprise | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    enterprise New Report from NNSA Highlights Major Achievements for 2015 Outlines Accomplishments in Stockpile Stewardship, Nuclear Nonproliferation, Naval Reactors and Managing the Nuclear Enterprise The National Nuclear Security Administration (NNSA) today released "NNSA Achievements: 2015 By the Numbers," a report highlighting major accomplishments and milestones

  16. nuclear reactors | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    nuclear reactors NNSA Researchers Advance Technology for Remote Reactor Monitoring NNSA's Defense Nuclear Nonproliferation Research and Development Program drives the innovation of technical capabilities to detect, identify, and characterize foreign nuclear weapons development activities. To achieve this, NNSA leverages the unique capabilities of the national laboratories

  17. Nuclear reactor

    DOE Patents [OSTI]

    Thomson, Wallace B.

    2004-03-16

    A nuclear reactor comprising a cylindrical pressure vessel, an elongated annular core centrally disposed within and spaced from the pressure vessel, and a plurality of ducts disposed longitudinally of the pressure vessel about the periphery thereof, said core comprising an annular active portion, an annular reflector just inside the active portion, and an annular reflector just outside the active a portion, said annular active portion comprising rectangular slab, porous fuel elements radially disposed around the inner reflector and extending the length of the active portion, wedge-shaped, porous moderator elements disposed adjacent one face of each fuel element and extending the length of the fuel element, the fuel and moderator elements being oriented so that the fuel elements face each other and the moderator elements do likewise, adjacent moderator elements being spaced to provide air inlet channels, and adjacent fuel elements being spaced to provide air outlet channels which communicate with the interior of the peripheral ducts, and means for introducing air into the air inlet channels which passes through the porous moderator elements and porous fuel elements to the outlet channel.

  18. State Nuclear Profiles - Energy Information Administration

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

    Nuclear & Uranium Glossary FAQS Overview Data Status of U.S. nuclear outages (interactive) Nuclear power plants Uranium & nuclear fuel Spent nuclear fuel All nuclear data ...

  19. The Joys of Nuclear Engineering

    ScienceCinema (OSTI)

    Jon Carmack

    2010-01-08

    Nuclear fuels researcher Jon Carmack talks about the satisfactions of a career in nuclear engineering.

  20. Nuclear reactor

    DOE Patents [OSTI]

    Yant, Howard W.; Stinebiser, Karl W.; Anzur, Gregory C.

    1977-01-01

    A nuclear reactor, particularly a liquid-metal breeder reactor, whose upper internals include outlet modules for channeling the liquid-metal coolant from selected areas of the outlet of the core vertically to the outlet plenum. The modules are composed of a highly-refractory, high corrosion-resistant alloy, for example, INCONEL-718. Each module is disposed to confine and channel generally vertically the coolant emitted from a subplurality of core-component assemblies. Each module has a grid with openings, each opening disposed to receive the coolant from an assembly of the subplurality. The grid in addition serves as a holdown for the assemblies of the corresponding subplurality preventing their excessive ejection upwardly from the core. In the region directly over the core the outlet modules are of such peripheral form that they nest forming a continuum over the core-component assemblies whose outlet coolant they confine. Each subassembly includes a chimney which confines the coolant emitted by its corresponding subassemblies to generally vertical flow between the outlet of the core and the outlet plenum. Each subplurality of assemblies whose emitted coolant is confined by an outlet module includes assemblies which emit lower-temperature coolant, for example, a control-rod assembly, or fertile assemblies, and assemblies which emit coolant of substantially higher temperature, for example, fuel-rod assemblies. The coolants of different temperatures are mixed in the chimneys reducing the effect of stripping (hot-cold temperature fluctuations) on the remainder of the upper internals which are composed typically of AISI-304 or AISI-316 stainless steel.

  1. Nuclear reactor

    DOE Patents [OSTI]

    Pennell, William E.; Rowan, William J.

    1977-01-01

    A nuclear reactor in which the core components, including fuel-rod assemblies, control-rod assemblies, fertile rod-assemblies, and removable shielding assemblies, are supported by a plurality of separate inlet modular units. These units are referred to as inlet module units to distinguish them from the modules of the upper internals of the reactor. The modular units are supported, each removable independently of the others, in liners in the supporting structure for the lower internals of the reactor. The core assemblies are removably supported in integral receptacles or sockets of the modular units. The liners, units, sockets and assmblies have inlet openings for entry of the fluid. The modular units are each removably mounted in the liners with fluid seals interposed between the opening in the liner and inlet module into which the fluid enters and the upper and lower portion of the liner. Each assembly is similarly mounted in a corresponding receptacle with fluid seals interposed between the openings where the fluid enters and the lower portion of the receptacle or fitting closely in these regions. As fluid flows along each core assembly a pressure drop is produced along the fluid so that the fluid which emerges from each core assembly is at a lower pressure than the fluid which enters the core assembly. However because of the seals interposed in the mountings of the units and assemblies the pressures above and below the units and assemblies are balanced and the units are held in the liners and the assemblies are held in the receptacles by their weights as they have a higher specific gravity than the fluid. The low-pressure spaces between each module and its liner and between each core assembly and its module is vented to the low-pressure regions of the vessel to assure that fluid which leaks through the seals does not accumulate and destroy the hydraulic balance.

  2. 2016 Nuclear Science Week

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

    Nuclear Science Week October 17 - 21, 2016 Nuclear Science Week is a national, broadly observed week-long celebration that focuses on all aspects of nuclear science. Events during this week will provide many learning opportunities about contributions, innovation and careers that can be found by exploring nuclear science. 6-22-16

  3. Advanced nuclear fuel

    SciTech Connect (OSTI)

    Terrani, Kurt

    2014-07-14

    Kurt Terrani uses his expertise in materials science to develop safer fuel for nuclear power plants.

  4. Advanced nuclear fuel

    ScienceCinema (OSTI)

    Terrani, Kurt

    2014-07-15

    Kurt Terrani uses his expertise in materials science to develop safer fuel for nuclear power plants.

  5. MICROLENSING DISCOVERY OF A POPULATION OF VERY TIGHT, VERY LOW MASS BINARY BROWN DWARFS

    SciTech Connect (OSTI)

    Choi, J.-Y.; Han, C.; Udalski, A.; Sumi, T.; Gaudi, B. S.; Gould, A.; Bennett, D. P.; Dominik, M.; Beaulieu, J.-P.; Tsapras, Y.; Bozza, V.; Abe, F.; Furusawa, K.; Itow, Y.; Bond, I. A.; Ling, C. H.; Botzler, C. S.; Freeman, M.; Chote, P.; Fukui, A.; Collaboration: MOA Collaboration; OGLE Collaboration; muFUN Collaboration; MiNDSTEp Consortium; PLANET Collaboration; RoboNet Collaboration; and others

    2013-05-10

    Although many models have been proposed, the physical mechanisms responsible for the formation of low-mass brown dwarfs (BDs) are poorly understood. The multiplicity properties and minimum mass of the BD mass function provide critical empirical diagnostics of these mechanisms. We present the discovery via gravitational microlensing of two very low mass, very tight binary systems. These binaries have directly and precisely measured total system masses of 0.025 M{sub Sun} and 0.034 M{sub Sun }, and projected separations of 0.31 AU and 0.19 AU, making them the lowest-mass and tightest field BD binaries known. The discovery of a population of such binaries indicates that BD binaries can robustly form at least down to masses of {approx}0.02 M{sub Sun }. Future microlensing surveys will measure a mass-selected sample of BD binary systems, which can then be directly compared to similar samples of stellar binaries.

  6. Nuclear and Particle Futures

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

    (NNSA) Nuclear Weapons Life Cycle Nuclear weapons are developed, produced, and maintained in the stockpile, and then retired and dismantled. This sequence of events is known as the nuclear weapons life cycle. The Department of Energy (DOE) through the National Nuclear Security Administration (NNSA) and in partnership with Department of Defense (DoD) conducts activities in a joint nuclear weapons life cycle process. The major steps, or phases, of the life cycle are described below. Currently,

  7. Spent Nuclear Fuel

    Gasoline and Diesel Fuel Update (EIA)

    Spent Nuclear Fuel Release date: December 7, 2015 Next release date: Late 2018 Spent nuclear fuel data are collected by the U.S. Energy Information Administration (EIA) for the Department of Energy's Office of Standard Contract Management (Office of the General Counsel) on the Form GC-859, "Nuclear Fuel Data Survey." The data include detailed characteristics of spent nuclear fuel discharged from commercial U.S. nuclear power plants and currently stored at commercial sites in the United

  8. Extensive sampling of basidiomycete genomes demonstrates inadequacy of the white rot/ brown rot paradigm for wood decay fungi

    SciTech Connect (OSTI)

    Riley, Robert; Salamov, Asaf; Brown, Daren W.; Nagy, Laszlo G.; Floudas, Dimitris; Held, Benjamin; Levasseur, Anthony; Lombard, Vincent; Morin, Emmanuelle; Otillar, Robert; Lindquist, Erika; Sun, Hui; LaButti, Kurt; Schmutz, Jeremy; Jabbour, Dina; Luo, Hong; Baker, Scott E.; Pisabarro, Antonio; Walton, Jonathan D.; Blanchette, Robert; Henrissat, Bernard; Martin, Francis; Cullen, Dan; Hibbett, David; Grigoriev, Igor V.

    2014-03-14

    Basidiomycota (basidiomycetes) make up 32percent of the described fungi and include most wood decaying species, as well as pathogens and mutualistic symbionts. Wood-decaying basidiomycetes have typically been classified as either white rot or brown rot, based on the ability (in white rot only) to degrade lignin along with cellulose and hemicellulose. Prior genomic comparisons suggested that the two decay modes can be distinguished based on the presence or absence of ligninolytic class II peroxidases (PODs), as well as the abundance of enzymes acting directly on crystalline cellulose (reduced in brown rot). To assess the generality of the white rot/brown rot classification paradigm we compared the genomes of 33 basidiomycetes, including four newly sequenced wood decayers, and performed phylogenetically-informed Principal Components Analysis (PCA) of a broad range of gene families encoding plant biomass-degrading enzymes. The newly sequenced Botryobasidium botryosum and Jaapia argillacea genomes lack PODs, but possess diverse enzymes acting on crystalline cellulose, and they group close to the model white rot species Phanerochaete chrysosporium in the PCA. Furthermore, laboratory assays showed that both B. botryosum and J. argillacea can degrade all polymeric components of woody plant cell walls, a characteristic of white rot. We also found expansions in reducing polyketide synthase genes specific to the brown rot fungi. Our results suggest a continuum rather than a dichotomy between the white rot and brown rot modes of wood decay. A more nuanced categorization of rot types is needed, based on an improved understanding of the genomics and biochemistry of wood decay.

  9. Nuclear Security Summit | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Security Summit U.S. and China Continue Cooperative Partnership to Advance Safe, Secure Civil Nuclear Energy for Clean Energy Future DOE/NNSA Hosts 11th U.S.-China Peaceful Uses of Nuclear Technology Meeting at Savannah River National Laboratory in Aiken, South Carolina (Aiken, South Carolina) - On May 10-11, 2016 the U.S. Department of Energy's (DOE) National Nuclear Security Administration (NNSA) and the China... Statement on Signing of the Administrative Arrangement to the Agreement for

  10. defense nuclear security | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    defense nuclear security NNSA Announces 2014 Security Professional of the Year Awards WASHINGTON, D.C. - The National Nuclear Security Administration (NNSA) today announced the recipients of the 2014 Bradley A. Peterson Federal and Contractor Security Professional of the Year Awards. Pamela Valdez from the Los Alamos Field Office will receive the federal award and Randy Fraser from... Michael Lempke receives NNSA's Gold Medal of Excellence DOE Undersecretary for Nuclear Security and NNSA