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1

Categorical Exclusion Determinations: New York | Department of Energy  

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

November 23, 2009 November 23, 2009 CX-000091: Categorical Exclusion Determination Cheektowaga's Installation of Photovoltaic Solar Panels CX(s) Applied: B5.1 Date: 11/23/2009 Location(s): Cheektowaga, New York Office(s): Energy Efficiency and Renewable Energy November 23, 2009 CX-000207: Categorical Exclusion Determination NaSi (Sodium Silicide) and Na-SG (Sodium Silica Gell) Powder Hydrogen Fuel Cells CX(s) Applied: B3.6 Date: 11/23/2009 Location(s): New York Office(s): Energy Efficiency and Renewable Energy, Golden Field Office November 23, 2009 CX-000097: Categorical Exclusion Determination Mount Vernon's Energy Efficiency Retrofits and Programs CX(s) Applied: B5.1, B1.32, A1, A9, A11 Date: 11/23/2009 Location(s): Mount Vernon, New York Office(s): Energy Efficiency and Renewable Energy

2

Categorical Exclusion Determinations: Office of Energy Efficiency and  

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

23, 2009 23, 2009 CX-000208: Categorical Exclusion Determination Recovery Act - PEM (Polymer Electrolyte Membrane) Fuel Cell Systems Providing Emergency Reserve and Backup Power CX(s) Applied: B5.1 Date: 11/23/2009 Location(s): Washington Office(s): Energy Efficiency and Renewable Energy, Golden Field Office November 23, 2009 CX-000207: Categorical Exclusion Determination NaSi (Sodium Silicide) and Na-SG (Sodium Silica Gell) Powder Hydrogen Fuel Cells CX(s) Applied: B3.6 Date: 11/23/2009 Location(s): New York Office(s): Energy Efficiency and Renewable Energy, Golden Field Office November 23, 2009 CX-000206: Categorical Exclusion Determination Michigan Biogas Center of Excellence CX(s) Applied: A9, B3.6 Date: 11/23/2009 Location(s): Flint, Michigan Office(s): Energy Efficiency and Renewable Energy, Golden Field Office

3

Categorical Exclusion (CX) Determinations By Date | Department of Energy  

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

3, 2009 3, 2009 CX-000207: Categorical Exclusion Determination NaSi (Sodium Silicide) and Na-SG (Sodium Silica Gell) Powder Hydrogen Fuel Cells CX(s) Applied: B3.6 Date: 11/23/2009 Location(s): New York Office(s): Energy Efficiency and Renewable Energy, Golden Field Office November 23, 2009 CX-000445: Categorical Exclusion Determination Sulfur Dioxide resistant Immobilized Amine Sorbents for Carbon Dioxide Capture CX(s) Applied: A9, A11, B3.1 Date: 11/23/2009 Location(s): Akron, Ohio Office(s): Fossil Energy, National Energy Technology Laboratory November 23, 2009 CX-000206: Categorical Exclusion Determination Michigan Biogas Center of Excellence CX(s) Applied: A9, B3.6 Date: 11/23/2009 Location(s): Flint, Michigan Office(s): Energy Efficiency and Renewable Energy, Golden Field Office

4

Categorical Exclusion Determinations: B3.6 | Department of Energy  

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

24, 2009 24, 2009 CX-000549: Categorical Exclusion Determination Solubility Testing of Boron and Gadolinium in Nitric Acid CX(s) Applied: B3.6 Date: 11/24/2009 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office November 23, 2009 CX-000207: Categorical Exclusion Determination NaSi (Sodium Silicide) and Na-SG (Sodium Silica Gell) Powder Hydrogen Fuel Cells CX(s) Applied: B3.6 Date: 11/23/2009 Location(s): New York Office(s): Energy Efficiency and Renewable Energy, Golden Field Office November 23, 2009 CX-000206: Categorical Exclusion Determination Michigan Biogas Center of Excellence CX(s) Applied: A9, B3.6 Date: 11/23/2009 Location(s): Flint, Michigan Office(s): Energy Efficiency and Renewable Energy, Golden Field Office

5

Pressure-induced structural transformations of the Zintl phase sodium silicide  

SciTech Connect (OSTI)

The high-pressure behaviour of NaSi has been studied using Raman spectroscopy and angle-dispersive synchrotron X-ray diffraction to observe the onset of structural phase transformations and potential oligomerisation into anionic Si nanoclusters with extended dimensionality. Our studies reveal a first structural transformation occurring at 8-10 GPa, followed by irreversible amorphisation above 15 GPa, suggesting the formation of Si-Si bonds with oxidation of the Si{sup -} species and reduction of Na{sup +} to metallic sodium. We have combined our experimental studies with DFT calculations to assist in the analysis of the structural behaviour of NaSi at high pressure. - Abstract: The high-pressure behaviour of NaSi has been studied using Raman spectroscopy and angle-dispersive synchrotron X-ray diffraction. Our studies reveal a first structural transformation occurring at 8-10 GPa, followed by irreversible amorphisation, suggesting the formation of Si-Si bonds with oxidation of the Si{sup -} species and reduction of Na{sup +} to metallic sodium. We have combined our experimental studies with DFT calculations to assist in the analysis of the structural behaviour of NaSi at high pressure. Display Omitted

Cabrera, Raul Quesada; Salamat, Ashkan; Barkalov, Oleg I. [Department of Chemistry and Materials Chemistry Centre, Christopher Ingold Laboratories, University College London, 20 Gordon Street, London WC1H 0AJ (United Kingdom); Leynaud, Olivier [Department of Crystallography, Birkbeck College, Malet Street, London WC1E 7HX (United Kingdom); Hutchins, Peter; Daisenberger, Dominik [Department of Chemistry and Materials Chemistry Centre, Christopher Ingold Laboratories, University College London, 20 Gordon Street, London WC1H 0AJ (United Kingdom); Machon, Denis [Universite de Lyon, F-69000, France-Univ. Lyon 1, Laboratoire PMCN, CNRS, UMR 5586, F-69622 Villeurbanne Cedex (France); Sella, Andrea; Lewis, Dewi W. [Department of Chemistry and Materials Chemistry Centre, Christopher Ingold Laboratories, University College London, 20 Gordon Street, London WC1H 0AJ (United Kingdom); McMillan, Paul F., E-mail: p.f.mcmillan@ucl.ac.u [Department of Chemistry and Materials Chemistry Centre, Christopher Ingold Laboratories, University College London, 20 Gordon Street, London WC1H 0AJ (United Kingdom)

2009-09-15T23:59:59.000Z

6

Transport parameter determination and modeling of sodium and strontium plumes at the Idaho National Engineering Laboratory  

E-Print Network [OSTI]

. , 1974] . . 7. Generalized plume with centerline 8. Strontium-90 distribution, 1970 [after Robertson et aL, 1974]. . . . 20 . 22 9. The sodium plume transverse dispersivity-Rnite source size in y iteration diagram. 10. The calculat. ed sodium plume.... There is flow there which picks up the contaminant ions dispersing them through the complex network of fractures and interconnected pore space of the saturated porous medium, the aquifer. Being able to model this spread of contaminant in the subsurface...

Londergan, John Thomas

2012-06-07T23:59:59.000Z

7

Recycling of sodium waste  

Science Journals Connector (OSTI)

Recycling of sodium waste ... Methods for handling and recycling a dangerous and costly chemical. ...

Bettina Hubler-Blank; Michael Witt; Herbert W. Roesky

1993-01-01T23:59:59.000Z

8

Submersible sodium pump  

DOE Patents [OSTI]

An electromagnetic submerged pump has an outer cylindrical stator with an inner cylindrical conductive core for the submerged pumping of sodium in the cylindrical interstitial volume defined between the stator and core. The cylindrical interstitial volume is typically vertically oriented, and defines an inlet at the bottom and an outlet at the top. The outer stator generates upwardly conveyed toroidal magnetic fields, which fields convey preferably from the bottom of the pump to the top of the pump liquid sodium in the cold leg of a sodium cooled nuclear reactor. The outer cylindrical stator has a vertically disposed duct surrounded by alternately stacked layers of coil units and laminates. 14 figs.

Brynsvold, G.V.; Lopez, J.T.; Olich, E.E.; West, C.W.

1989-11-21T23:59:59.000Z

9

Factors contributing to the breakdown of sodium beta-alumina  

SciTech Connect (OSTI)

Clarification of the breakdown process occurring during charge transfer in sodium beta alumina solid electrolytes was derived from: (1) studying the effects of molten sodium contact at 350/sup 0/C on single crystal sodium beta alumina and polycrystalline sodium beta alumina; (2) determination of critical current density by monitoring acoustic emissions accompanying crack growth in sodium/sodium beta alumina/sodium cells subjected to linear current ramping at 1 mA cm/sup -2/ sec/sup -1/; (3) failure analysis conducted on cycled electrolytes, some from commercial sodium/sulfur cells, which had been subjected to up to 703 Ahr cm/sup -2/ of charge transfer. Gray coloration developing in beta aluminas in contact with molten sodium was found to be a consequence of formation, through reduction by sodium, of oxygen vacancies charge compensated by electrons. Electronic conductivity of the electrolyte increases as a result. No second phase formation was detected. Colored electrolytes from sodium/sulfur cells show evidence of a newly recognized degradation mechanism in which fracture occurs when sodium is reduced and deposited internally under pressure as metal in regions where an electronic conductivity gradient exists. Heating colored beta aluminas in air produces reoxidation and bleaching. Kinetics and other properties of the coloration and bleaching processes were determined. Critical current density was found to bear an inverse relation to average electrolyte grain size. Evidence was found in the cycled electrolytes for a slow crack growth mechanism and a progressive mode of degradation advancing from the sulfur electrode interface. Implications of the findings for the construction and operation of sodium/sulfur battery systems are discussed.

Buechele, A.C.

1982-05-01T23:59:59.000Z

10

Neutron Activation Analysis of Manganese and Sodium in Bacterial Cells  

Science Journals Connector (OSTI)

...research-article Metabolism and Products Neutron Activation Analysis of Manganese and Sodium...Columbus, Ohio 43210. The application of neutron activation analysis for mineral determinations...two elements. The results indicate that neutron activation analysis is readily applicable...

Woodrow B. Krueger; Walter E. Carey; Bruno J. Kolodzeij

1970-12-01T23:59:59.000Z

11

It's Elemental - The Element Sodium  

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

Neon Neon Previous Element (Neon) The Periodic Table of Elements Next Element (Magnesium) Magnesium The Element Sodium [Click for Isotope Data] 11 Na Sodium 22.98976928 Atomic Number: 11 Atomic Weight: 22.98976928 Melting Point: 370.95 K (97.80°C or 208.04°F) Boiling Point: 1156 K (883°C or 1621°F) Density: 0.97 grams per cubic centimeter Phase at Room Temperature: Solid Element Classification: Metal Period Number: 3 Group Number: 1 Group Name: Alkali Metal What's in a name? From the English word soda and from the Medieval Latin word sodanum, which means "headache remedy." Sodium's chemical symbol comes from the Latin word for sodium carbonate, natrium. Say what? Sodium is pronounced as SO-dee-em. History and Uses: Although sodium is the sixth most abundant element on earth and comprises

12

Inhibition Of Washed Sludge With Sodium Nitrite  

SciTech Connect (OSTI)

This report describes the results of electrochemical tests used to determine the relationship between the concentration of the aggressive anions in washed sludge and the minimum effective inhibitor concentration. Sodium nitrate was added as the inhibitor because of its compatibility with the DWPF process. A minimum of 0.05M nitrite is required to inhibit the washed sludge simulant solution used in this study. When the worst case compositions and safety margins are considered, it is expected that a minimum operating limit of nearly 0.1M nitrite will be specified. The validity of this limit is dependent on the accuracy of the concentrations and solubility splits previously reported. Sodium nitrite additions to obtain 0.1M nitrite concentrations in washed sludge will necessitate the additional washing of washed precipitate in order to decrease its sodium nitrite inhibitor requirements sufficiently to remain below the sodium limits in the feed to the DWPF. Nitrite will be the controlling anion in "fresh" washed sludge unless the soluble chloride concentration is about ten times higher than predicted by the solubility splits. Inhibition of "aged" washed sludge will not be a problem unless significant chloride dissolution occurs during storage. It will be very important tomonitor the composition of washed sludge during processing and storage.

Congdon, J. W.; Lozier, J. S.

2012-09-25T23:59:59.000Z

13

Sodium Heat Engine Development Program  

SciTech Connect (OSTI)

The Sodium Heat Engine (SHE) is an efficient thermoelectric conversion device which directly generates electricity from a thermally regenerative electrochemical cell that relies on the unique conduction properties of {beta}{double prime}-alumina solid electrolyte (BASE). Laboratory models of a variety of SHE devices have demonstrated the feasibility and efficiency of the system, engineering development of large prototype devices has been slowed by a series of materials and fabrication problems. Failure of the electrolyte tubes has been a recurring problem and a number of possible causes have been postulated. To address these issues, a two-phase engineering development program was undertaken. This report summarizes the final results of the first phase of the program, which included extensive materials characterization activities, a study of applicable nondestructive evaluation methods, an investigation of possible stress states that would contribute to fracture, and certain operational issues associated with the electromagnetic pumps used in the SHE prototype. Mechanical and microstructural evaluation of commercially obtained BASE tubes revealed that they should be adequate for SHE applications and that sodium exposure produced no appreciable deleterious strength effects. Processing activities to produce a more uniform and smaller grain size for the BASE tubes were completed using isostatic pressing, extrusion, and slip casting. Green tubes were sintered by conventional and microwave plasma methods. Of particular interest is the residual stress state in the BASE tubes, and both analysis and nondestructive evaluation methods were employed to evaluate these stresses. X-ray and neutron diffraction experiments were performed to determine the bulk residual stresses in commercially fabricated BASE tubes; however, tube-to-tube variations and variations among the various methods employed did not allow formulation of a definitive definition of the as-fabricated stress state.

Singh, J.P.; Kupperman, D.S.; Majumdar, S.; Dorris, S.; Gopalsami, N.; Dieckman, S.L.; Jaross, R.A.; Johnson, D.L.; Gregar, J.S.; Poeppel, R.B.; Raptis, A.C.; Valentin, R.A.

1992-01-01T23:59:59.000Z

14

Thermophysical Properties of Sodium Nitrate and Sodium Chloride  

Office of Scientific and Technical Information (OSTI)

Thermophysical Properties of Sodium Nitrate and Sodium Chloride Thermophysical Properties of Sodium Nitrate and Sodium Chloride Solutions and Their Effects on Fluid Flow in Unsaturated Media Tianfu Xu and Karsten Pruess Earth Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720 ABSTRACT. Understanding movement of saline sodium nitrate (NaNO 3 ) waste solutions is important for assessing the contaminant migration near leaking waste storage tanks in the unsaturated zone at the Hanford site (Washington, USA). The purpose of this study is to contribute a basic understanding of effects of the thermophysical behavior of NaNO 3 solutions on fluid flow in unsaturated media. We first present mathematical expressions for the dependence of density, viscosity, solubility and vapor pressure of

15

Sodium loop framework structural analysis  

SciTech Connect (OSTI)

This document provides the structural analysis of the Sodium Loop framework in a drop condition. The drop is similar to the US Department of Transportation non-bulk, performance-oriented packaging (Packaging Group I) drop test. The drop height evaluated for the Sodium Loop framework is 5.9 ft.

Nguyen, P.M.

1995-06-06T23:59:59.000Z

16

Tables of thermodynamic properties of sodium  

SciTech Connect (OSTI)

The thermodynamic properties of saturated sodium, superheated sodium, and subcooled sodium are tabulated as a function of temperature. The temperature ranges are 380 to 2508 K for saturated sodium, 500 to 2500 K for subcooled sodium, and 400 to 1600 K for superheated sodium. Tabulated thermodynamic properties are enthalpy, heat capacity, pressure, entropy, density, instantaneous thermal expansion coefficient, compressibility, and thermal pressure coefficient. Tables are given in SI units and cgs units.

Fink, J.K.

1982-06-01T23:59:59.000Z

17

Independent Oversight Review, Sodium Bearing Waste Treatment...  

Energy Savers [EERE]

Federal - June 2012 Independent Oversight Review, Sodium Bearing Waste Treatment Project - Federal - June 2012 June 2012 Review of the Sodium Bearing Waste Treatment Project -...

18

Independent Oversight Review, Sodium Bearing Waste Treatment...  

Energy Savers [EERE]

Contractor - June 2012 Independent Oversight Review, Sodium Bearing Waste Treatment Project - Contractor - June 2012 June 2012 Review of the Sodium Bearing Waste Treatment Project...

19

Simulation of sodium boiling experiments with THERMIT sodium version  

E-Print Network [OSTI]

Natural and forced convection experiments(SBTF and French) are simulated with the sodium version of the thermal-hydraulic computer code THERMIT. Simulation is done for the test secti- -on with the pressure-velocity boundary ...

Huh, Kang Yul

1982-01-01T23:59:59.000Z

20

Cast Stone Formulation At Higher Sodium Concentrations  

SciTech Connect (OSTI)

A low temperature waste form known as Cast Stone is being considered to provide supplemental Low Activity Waste (LAW) immobilization capacity for the Hanford site. Formulation of Cast Stone at high sodium concentrations is of interest since a significant reduction in the necessary volume of Cast Stone and subsequent disposal costs could be achieved if an acceptable waste form can be produced with a high sodium molarity salt solution combined with a high water to premix (or dry blend) ratio. The objectives of this study were to evaluate the factors involved with increasing the sodium concentration in Cast Stone, including production and performance properties and the retention and release of specific components of interest. Three factors were identified for the experimental matrix: the concentration of sodium in the simulated salt solution, the water to premix ratio, and the blast furnace slag portion of the premix. The salt solution simulants used in this study were formulated to represent the overall average waste composition. The cement, blast furnace slag, and fly ash were sourced from a supplier in the Hanford area in order to be representative. The test mixes were prepared in the laboratory and fresh properties were measured. Fresh density increased with increasing sodium molarity and with decreasing water to premix ratio, as expected given the individual densities of these components. Rheology measurements showed that all of the test mixes produced very fluid slurries. The fresh density and rheology data are of potential value in designing a future Cast Stone production facility. Standing water and density gradient testing showed that settling is not of particular concern for the high sodium compositions studied. Heat of hydration measurements may provide some insight into the reactions that occur within the test mixes, which may in turn be related to the properties and performance of the waste form. These measurements showed that increased sodium concentration in the salt solution reduced the time to peak heat flow, and reducing the amount of slag in the premix increased the time to peak heat flow. These observations may help to describe some of the cured properties of the samples, in particular the differences in compressive strength observed after 28 and 90 days of curing. Samples were cured for at least 28 days at ambient temperature in the laboratory prior to cured properties analyses. The low activity waste form for disposal at the Hanford Site is required to have a compressive strength of at least 500 psi. After 28 days of curing, several of the test mixes had mean compressive strengths that were below the 500 psi requirement. Higher sodium concentrations and higher water to premix ratios led to reduced compressive strength. Higher fly ash concentrations decreased the compressive strength after 28 days of curing. This may be explained in that the cementitious phases matured more quickly in the mixes with higher concentrations of slag, as evidenced by the data for the time to peak heat generation. All of the test mixes exhibited higher mean compressive strengths after 90 days of curing, with only one composition having a mean compressive strength of less than 500 psi. Leachability indices were determined for the test mixes for contaminants of interest. The leaching performance of the mixes evaluated in this study was not particularly sensitive to the factors used in the experimental design. This may be beneficial in demonstrating that the performance of the waste form is robust with respect to changes in the mix composition. The results of this study demonstrate the potential to achieve significantly higher waste loadings in Cast Stone and other low temperature, cementitious waste forms. Additional work is needed to elucidate the hydration mechanisms occurring in Cast Stone formulated with highly concentrated salt solutions since these reactions are responsible for determining the performance of the cured waste form. The thermal analyses completed in this study provide some preliminary insight, although the l

Fox, K. M.; Roberts, K. A.; Edwards, T. B.

2014-02-28T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Ground beef shelf life assessment as influenced by sodium lactate, sodium propionate, sodium diacetate, and soy protein concentrate  

E-Print Network [OSTI]

In phase I all-beef and soy-added ground beef patties containing sodium lactate, sodium propionate, and sodium diacetate at various levels and combinations were stored for nine months at -10C. Upon cooking, the addition of sodium lactate increased...

Grones, Kelly Leann

2012-06-07T23:59:59.000Z

22

The Sodium-Restricted Diet  

E-Print Network [OSTI]

The value of salt has long been known. Feuds and wars were waged for the possession of salt during man's early development. The common expressions "salt of the earth" and "worth his weight in salt" all show the high value placed on salt. Taxes were... collected for possession of salt. Even the word "salary" is connected with salt. Salt remains valuable to us as a source of sodium, an essential nutrient needed by our body to function properly. The body needs sodium to form tissue - to aid a child...

Anonymous,

1979-01-01T23:59:59.000Z

23

Surface-Driven Sodium Ion Energy Storage in Nanocellular Carbon...  

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

Surface-Driven Sodium Ion Energy Storage in Nanocellular Carbon Foams. Surface-Driven Sodium Ion Energy Storage in Nanocellular Carbon Foams. Abstract: Sodium ion (Na+) batteries...

24

Ion Recognition Approach to Volume Reduction of Alkaline Tank Waste by Separation and Recycle of Sodium Hydroxide and Sodium Nitrate  

SciTech Connect (OSTI)

This research has focused on new liquid-liquid extraction chemistry applicable to separation of major sodium salts from alkaline tank waste. It was the overall goal to provide the scientific foundation upon which the feasibility of liquid-liquid extraction chemistry for bulk reduction of the volume of tank waste can be evaluated. Sodium hydroxide represented the initial test case and primary focus. It is a primary component of the waste1 and has the most value for recycle. A full explanation of the relevance of this research to USDOE Environmental Management needs will be given in the Relevance, Impact, and Technology Transfer section below. It should be noted that this effort was predicated on the need for sodium removal primarily from low-activity waste, whereas evolving needs have shifted attention to volume reduction of the high-activity waste. The results of the research to date apply to both applications, though treatment of high-activity wastes raises new questions that will be addressed in the renewal period. Toward understanding the extractive chemistry of sodium hydroxide and other sodium salts, it was the intent to identify candidate extractants and determine their applicable basic properties regarding selectivity, efficiency, speciation, and structure. A hierarchical strategy was to be employed in which the type of liquid-liquid-extraction system varied in sophistication from simple, single-component solvents to solvents containing designer host molecules. As an aid in directing this investigation toward addressing the fundamental questions having the most value, a conceptualization of an ideal process was advanced. Accordingly, achieving adequate selectivity for sodium hydroxide represented a primary goal, but this result is worthwhile for waste applications only if certain conditions are met.

Moyer, Bruce A.; Marchand, Alan P.; Bonnesen, Peter V.; Bryan, Jeffrey C.; Haverlock, Tamara J.

2002-03-30T23:59:59.000Z

25

Independent Oversight Assessment, Idaho Cleanup Project Sodium...  

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

Bearing Waste Treatment Project - November 2012 November 2012 Assessment of Nuclear Safety Culture at the Idaho Cleanup Project Sodium Bearing Waste Treatment Project This...

26

Viscosity of Liquid Sodium and Potassium  

Science Journals Connector (OSTI)

2 November 1936 research-article Viscosity of Liquid Sodium and Potassium Y. S. Chiong The Royal Society is collaborating with JSTOR to digitize, preserve, and extend...

1936-01-01T23:59:59.000Z

27

Sodium sulfide leaching of low-grade jamesonite concentrate in production of sodium pyroantimoniate  

Science Journals Connector (OSTI)

Sodium sulfide leaching of a low-grade jamesonite concentrate in the production of sodium pyroantimoniate through the air oxidation process and the influencing factors on the leaching rate of antimony were...

Tian-zu Yang PhD; Ming-xi Jiang

2005-06-01T23:59:59.000Z

28

Recovery of acids and sodium hydroxide from solutions of sodium sulfate and sodium chloride with the use of bipolar membranes  

SciTech Connect (OSTI)

The authors examined the kinetic laws governing the electrodialysis recovery of hydrochloric acid and sulfuric acid, as well as sodium hydroxide, from 1M sodium chloride and 0.5 M sodium sulfate solutions and from a mixture of these salts with the use of the MB-1, MB-2, and MB-3 bipolar membranes. Kinetic plots of the current density and the concentration of the acid and the base in the chambers next to the bipolar membranes during the electrodialysis treatment of 1M sodium chloride, 0.5 M sodium sulfate, and solutions are presented. It was established that it is better to use the MB-3 membrane for the electrodialysis conversion of sodium chloride and sodium sulfate into acids and sodium hydroxide owing to the high rate and current efficiency and low expenditure of electrical energy and degree of contamination of the products obtained by the salts. It was also established that the resistance of the MB-1 and MB-2 bipolar membranes is almost an order of magnitude higher than that of the MB-3 membrane.

Bobrinskaya, G.A.; Pavlova, T.V.; Shatalov, A.Ya.

1985-09-01T23:59:59.000Z

29

Growth and bone development in weanling quarter horses fed diets supplemented with sodium zeolite-A  

E-Print Network [OSTI]

GROWTH AND BONE DEVELOPMENT IN WEANLING QUARTER HORSES FED DIETS SUPPLEMENTED WITH SODIUM ZEOLITE-A A Thesis by KIMBERLY SUZANNE FREY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... in Weanling Quarter Horses Fed Diets Supplemented with Sodium Zeolite-A. (December 1991) Kimberly Suzanne Frey, B. S. , Texas A&M University Chair of Advisory Committee: Dr. Gary D. Potter Sixty Quarter Horse weanlings were used in a study to determine...

Frey, Kimberly Suzanne

2012-06-07T23:59:59.000Z

30

CX-005861: Categorical Exclusion Determination | Department of Energy  

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

1: Categorical Exclusion Determination 1: Categorical Exclusion Determination CX-005861: Categorical Exclusion Determination Pretreatment Engineering Platform (PEP) Sludge Simulant Preparation CX(s) Applied: B3.6 Date: 03/17/2011 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office Sludge simulant is needed for rotary microfliter (RMF) testing. The Pretreatment Engineering Platform (PEP) sludge simulant is a blend of the following five major components: Iron-rich sludge simulant, specific supernate simulant, aluminum hydroxide solids, aluminum oxyhydroxide solids, and sodium oxalate solids. The specific supernate simulant has the following components: Sodium oxalate, aluminum nitrate, sodium phosphate, sodium sulfate, sodium nitrate, sodium hydroxide, sodium nitrite, and

31

Atlas Sodium Automated Batch Synthesis System  

E-Print Network [OSTI]

Atlas Sodium Automated Batch Synthesis System (Syrris) June 2013 #12;Introduction to the system · The Atlas Sodium system consists of an Atlas base equipped with a 400ºC hotplate, a stacking dry bath systemL) for automated addition and/or removal of solution. · The system is computer controlled by the Atlas software

Subramanian, Venkat

32

Determination of Sodium Fluoroacetate (Compound 1080) in Biological Tissues  

Science Journals Connector (OSTI)

......potassium carbonate, as the base with varying success (20-23). However, derivatization of fluoroacetic acid was found to pro- ceed best when anhydrous potassium carbonate and acetone were used, a finding comparable to that of Okuno and Meeker (15). Chromatographic......

William J. Allender

1990-01-01T23:59:59.000Z

33

In-Situ Method for Treating Residual Sodium  

DOE Patents [OSTI]

A unique process for deactivating residual sodium in Liquid Metal Fast Breeder Reactor (LMFBR) systems which uses humidified (but not saturated) carbon dioxide at ambient temperature and pressure to convert residual sodium into solid sodium bicarbonate.

Sherman, Steven R.; Henslee, S. Paul

2005-07-19T23:59:59.000Z

34

In-situ method for treating residual sodium  

SciTech Connect (OSTI)

A unique process for deactivating residual sodium in Liquid Metal Fast Breeder Reactor (LMFBR) systems which uses humidified (but not saturated) carbon dioxide at ambient temperature and pressure to convert residual sodium into solid sodium bicarbonate.

Sherman, Steven R. (Idaho Falls, ID); Henslee, S. Paul (Idaho Falls, ID)

2005-07-19T23:59:59.000Z

35

Hydrogen embrittlement of type 410 stainless steel in sodium chloride, sodium sulfate, and sodium hydroxide environments at 90 C  

SciTech Connect (OSTI)

Susceptibility of martensitic type 410 (UNS S41000) stainless steel (SS) to environmental cracking was evaluated at 90 C in concentrated sodium chloride, sodium sulfate and sodium hydroxide solutions, all of which are environments related to steam turbine conditions, using the slow strain rate testing (SSRT) technique. In NaCl, the effects of solution pH, concentration, and anodic and cathodic polarization were investigated. Tests were supplemented by detailed electron fractography and hydrogen permeation measurements. A clear correlation was found between the degree of embrittlement and the amount of hydrogen permeating the steel, suggesting a hydrogen-induced cracking mechanism.

Gonzalez-Rodriguez, J.G.; Salinas-Bravo, V.M. [Inst. de Investigaciones Electricas, Cuernavaca (Mexico). Dept. Fisico Quimica Aplicada; Martinez-Villafane, A. [Centro de Investigaciones en Materiales Avanzados Leon Tolstoi, Chihuahua (Mexico)

1997-06-01T23:59:59.000Z

36

SciTech Connect: Thermodynamic and transport properties of sodium...  

Office of Scientific and Technical Information (OSTI)

on thermophysical properties of sodium have been included in this critical assessment. Thermodynamic properties of sodium liquid and vapor that have been assessed...

37

High-capacity hydrogen storage in lithium and sodium amidoboranes...  

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

capacity hydrogen storage in lithium and sodium amidoboranes. High-capacity hydrogen storage in lithium and sodium amidoboranes. Abstract: A substantial effort worldwide has been...

38

IAEA sodium void reactivity benchmark calculations  

SciTech Connect (OSTI)

In this paper, the IAEA-1 992 ``Benchmark Calculation of Sodium Void Reactivity Effect in Fast Reactor Core`` problem is evaluated. The proposed design is a large axially heterogeneous oxide-fueled fast reactor as described in Section 2; the core utilizes a sodium plenum above the core to enhance leakage effects. The calculation methods used in this benchmark evaluation are described in Section 3. In Section 4, the calculated core performance results for the benchmark reactor model are presented; and in Section 5, the influence of steel and interstitial sodium heterogeneity effects is estimated.

Hill, R.N.; Finck, P.J.

1992-12-01T23:59:59.000Z

39

IAEA sodium void reactivity benchmark calculations  

SciTech Connect (OSTI)

In this paper, the IAEA-1 992 Benchmark Calculation of Sodium Void Reactivity Effect in Fast Reactor Core'' problem is evaluated. The proposed design is a large axially heterogeneous oxide-fueled fast reactor as described in Section 2; the core utilizes a sodium plenum above the core to enhance leakage effects. The calculation methods used in this benchmark evaluation are described in Section 3. In Section 4, the calculated core performance results for the benchmark reactor model are presented; and in Section 5, the influence of steel and interstitial sodium heterogeneity effects is estimated.

Hill, R.N.; Finck, P.J.

1992-01-01T23:59:59.000Z

40

Sodium Alanate Nanoparticles for Hydrogen Storage.  

E-Print Network [OSTI]

??Preparation and characterization of sodium alanate (NaAlH4) based hydrogen storage materials are described in this book. The effect of the NaAlH4 particle size, particularly in (more)

Bald, C.P.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Kinetics of wet sodium vapor complex plasma  

SciTech Connect (OSTI)

In this paper, we have investigated the kinetics of wet (partially condensed) Sodium vapor, which comprises of electrons, ions, neutral atoms, and Sodium droplets (i) in thermal equilibrium and (ii) when irradiated by light. The formulation includes the balance of charge over the droplets, number balance of the plasma constituents, and energy balance of the electrons. In order to evaluate the droplet charge, a phenomenon for de-charging of the droplets, viz., evaporation of positive Sodium ions from the surface has been considered in addition to electron emission and electron/ion accretion. The analysis has been utilized to evaluate the steady state parameters of such complex plasmas (i) in thermal equilibrium and (ii) when irradiated; the results have been graphically illustrated. As a significant outcome irradiated, Sodium droplets are seen to acquire large positive potential, with consequent enhancement in the electron density.

Mishra, S. K., E-mail: nishfeb@rediffmail.com [Institute for Plasma Research (IPR), Gandhinagar 382428 (India); Sodha, M. S. [Centre of Energy Studies, Indian Institute of Technology Delhi (IITD), New Delhi 110016 (India)] [Centre of Energy Studies, Indian Institute of Technology Delhi (IITD), New Delhi 110016 (India)

2014-04-15T23:59:59.000Z

42

Synthesis and single crystal structure refinement of the one-layer hydrate of sodium brittle mica  

SciTech Connect (OSTI)

A sodium brittle mica with the ideal composition [Na{sub 4}]{sup inter}[Mg{sub 6}]{sup oct}[Si{sub 4}Al{sub 4}]{sup tet}O{sub 20}F{sub 4} was synthesized via melt synthesis in a gas tight crucible. This mica is unusual inasmuch as the known mica structure holds only room for two interlayer cations per unit cell and inasmuch as it readily hydrates despite the high layer charge while ordinary micas and brittle micas are non-swelling. The crystal structure of one-layer hydrate sodium brittle mica was determined and refined from single crystal X-ray data. Interlayer cations reside at the center of the distorted hexagonal cavities and are coordinated by the three inner basal oxygen atoms. The coordination of the interlayer cation is completed by three interlayer water molecules residing at the center of the interlayer region. The relative position of adjacent 2:1-layers thus is fixed by these octahedrally coordinated interlayer cations. Pseudo-symmetry leads to extensive twinning. In total five twin operations generate the same environment for the interlayer species and are energetically degenerate. - Graphical abstract: The sodium brittle mica has been successfully synthesized by melt synthesis and the crystal structure of the one-layer hydrate of sodium brittle mica was determined from single crystal X-ray diffraction data. Highlights: Black-Right-Pointing-Pointer Melt synthesis yielded coarse grained sodium brittle mica which showed little disorder. Black-Right-Pointing-Pointer Sodium brittle mica hydrated completely to the state of one-layer hydrate. Black-Right-Pointing-Pointer Structure of one-layer hydrate of sodium brittle mica could therefore be determined and refined. Black-Right-Pointing-Pointer Arrangement of upper and lower tetrahedral sheet encompassing interlayer cation were clarified.

Kalo, Hussein; Milius, Wolfgang [Lehrstuhl fuer Anorganische Chemie I, University of Bayreuth, D-95440 Bayreuth (Germany)] [Lehrstuhl fuer Anorganische Chemie I, University of Bayreuth, D-95440 Bayreuth (Germany); Braeu, Michael [BASF Construction Chemicals GmbH, 83308 Trostberg (Germany)] [BASF Construction Chemicals GmbH, 83308 Trostberg (Germany); Breu, Josef, E-mail: Josef.Breu@uni-bayreuth.de [Lehrstuhl fuer Anorganische Chemie I, University of Bayreuth, D-95440 Bayreuth (Germany)] [Lehrstuhl fuer Anorganische Chemie I, University of Bayreuth, D-95440 Bayreuth (Germany)

2013-02-15T23:59:59.000Z

43

The Sodium Process Facility at Argonne National Laboratory-West  

SciTech Connect (OSTI)

Argonne National Laboratory-West (ANL-W) has approximately 680,000 liters of raw sodium stored in facilities on site. As mandated by the State of Idaho and the US Department of Energy (DOE), this sodium must be transformed into a stable condition for land disposal. To comply with this mandate, ANL-W designed and built the Sodium Process Facility (SPF) for the processing of this sodium into a dry, sodium carbonate powder. The major portion of the sodium stored at ANL-W is radioactively contaminated. The sodium will be processed in three separate and distinct campaigns: the 290,000 liters of Fermi-1 primary sodium, the 50,000 liters of the Experimental Breeder Reactor-II (EBR-II) secondary sodium, and the 330,000 liters of the EBR-II primary sodium. The Fermi-1 and the EBR-II secondary sodium contain only low-level of radiation, while the EBR-II primary sodium has radiation levels up to 0.5 mSv (50 mrem) per hour at 1 meter. The EBR-II primary sodium will be processed last, allowing the operating experience to be gained with the less radioactive sodium prior to reacting the most radioactive sodium. The sodium carbonate will be disposed of in 270 liter barrels, four to a pallet. These barrels are square in cross-section, allowing for maximum utilization of the space on a pallet, minimizing the required landfill space required for disposal.

Michelbacher, J.A.; Henslee, S.P. McDermott, M.D.; Price, J.R.; Rosenberg, K.E.; Wells, P.B.

1998-07-01T23:59:59.000Z

44

Page not found | Department of Energy  

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

11 - 4820 of 29,416 results. 11 - 4820 of 29,416 results. Download CX-000207: Categorical Exclusion Determination NaSi (Sodium Silicide) and Na-SG (Sodium Silica Gell) Powder Hydrogen Fuel Cells CX(s) Applied: B3.6 Date: 11/23/2009 Location(s): New York Office(s): Energy Efficiency and Renewable Energy, Golden Field Office http://energy.gov/nepa/downloads/cx-000207-categorical-exclusion-determination Download CX-001522: Categorical Exclusion Determination Activity 8 CX(s) Applied: B5.1 Date: 04/01/2010 Location(s): Sacramento County, California Office(s): Energy Efficiency and Renewable Energy, Golden Field Office http://energy.gov/nepa/downloads/cx-001522-categorical-exclusion-determination Download CX-010683: Categorical Exclusion Determination Glen Canyon Substation Stage 09- 50MVA 230/69KV Transformer addition

45

Bonding in Sodium Chloride Nanotubes: A New Analysis via Madelung Constants and Cohesive Energies  

E-Print Network [OSTI]

1 Bonding in Sodium Chloride Nanotubes: A New Analysis via Madelung Constants and Cohesive Energies is introduced which employs a linear relationship between nanotube cohesive energies determined via Density between ionic and cohesive bonding energies indicate that, as the nanotubes become longer, ionic bonding

Hanusa, Christopher

46

Reaction of Sodium Borohydride with Wool  

Science Journals Connector (OSTI)

... It has recently been found that sodium borohydride in alkaline solution rapidly dissolves wool under conditions of temperature and pH milder than many in current use. The reaction ... in current use. The reaction has been studied as follows: 1 gm. of solvent-scoured Merino ...

J. M. GILLESPIE

1959-01-31T23:59:59.000Z

47

In sodium tests of ultrasonic transducers  

SciTech Connect (OSTI)

Ultrasonic techniques are seen as suitable candidates for the in-service inspection and for the continuous surveillance of sodium cooled reactors (SFR). These techniques need the development and the qualification of immersed ultrasonic transducers, and materials. This paper presents some developments performed by CEA (DTN and LIST) and AREVA (NDE Solutions), and some results. (authors)

Lhuillier, C.; Descombin, O.; Baque, F. [CEA, DTN, 13108 Saint Paul lez Durance Cedex (France); Marchand, B. [CEA, LIST, 91191 Gif-sur-Yvette (France); Saillant, J. F. [AREVA/NDE Solutions, 4 rue Thomas Dumorey, 71109 Chalon sur Saone Cedex (France); Augem, J. M. [EDF, 12-14 avenue Dutrievoz, 69628 Villeurbanne (France)

2011-07-01T23:59:59.000Z

48

Two-dimensional computational modeling of sodium boiling in simulated LMFBR fuel-pin bundles  

SciTech Connect (OSTI)

Extensive sodium boiling tests have been carried out in two simulated LMFBR fuel pin bundles in the Thermal-Hydraulic Out-of-Reactor Safety (THORS) Facility at Oak Ridge National Laboratory. Experimental results from a 19-pin bundle (THORS Bundle 6A) have been previously reported, and experimental results from a 61-pin bundle (THORS Bundle 9) will be reported soon. The results discussed here are from the 19-pin bundle. Preliminary analysis has shown that the computational methods used and conclusions reached are equally valid for the 61-pin bundle, as well as the 19-pin in-reactor Sodium Loop Safety Facility (SLSF) W-1 experiment. The main result of THORS sodium boiling experimentation is that boiling behavior is determined by two-dimensional effects, i.e., the rates of mass, momentum and energy transfer in the direction perpendicular to the axes of the fuel pins.

Dearing, J.F.

1981-01-01T23:59:59.000Z

49

Gypsum and Polyacrylamide Soil Amendments Used With High Sodium Wastewater  

E-Print Network [OSTI]

Using wastewater for irrigation of crops represents an attractive alternative to disposal. Typically, municipal wastewaters are high in sodium, and the resulting high sodium absorption ratio (SAR) alters the soil structure making it more impermeable...

Gardiner, Duane

50

New York | Department of Energy  

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

November 23, 2009 November 23, 2009 CX-000091: Categorical Exclusion Determination Cheektowaga's Installation of Photovoltaic Solar Panels CX(s) Applied: B5.1 Date: 11/23/2009 Location(s): Cheektowaga, New York Office(s): Energy Efficiency and Renewable Energy November 23, 2009 CX-000207: Categorical Exclusion Determination NaSi (Sodium Silicide) and Na-SG (Sodium Silica Gell) Powder Hydrogen Fuel Cells CX(s) Applied: B3.6 Date: 11/23/2009 Location(s): New York Office(s): Energy Efficiency and Renewable Energy, Golden Field Office November 23, 2009 CX-000097: Categorical Exclusion Determination Mount Vernon's Energy Efficiency Retrofits and Programs CX(s) Applied: B5.1, B1.32, A1, A9, A11 Date: 11/23/2009 Location(s): Mount Vernon, New York Office(s): Energy Efficiency and Renewable Energy

51

Filtration of Sludge and Sodium Nonatitanate Solutions  

SciTech Connect (OSTI)

The proposed facility designs for the ion exchange and solvent extraction flowsheets under development to treat high level waste at the Savannah River Site use crossflow filtration to remove entrained sludge and monosodium titanate (MST). Bench-scale and pilot-scale testing performed with simulated feed streams showed much lower filtration rates than desired for the process. This report documents an investigation of the impact on filtration of using Honeywell sodium nonatitanate (ST), rather than MST, for strontium and actinide removal.

Poirier, M.R.

2000-10-16T23:59:59.000Z

52

Sodium Plugging Test Loop - Nuclear Engineering Division (Argonne)  

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

Sodium Plugging Test Loop Sodium Plugging Test Loop Sodium Plugging Test Loop Overview Other Facilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Sodium Plugging Test Loop This experimental setup is part of the Global Nuclear Energy Partnership (GNEP) Advanced Fuel Cycle R&D work carried out at Argonne on advanced sodium component technology. Bookmark and Share For long range sodium technology research and development, employing supercritical CO2 Brayton cycle power conversion technology as an advanced balance of plant technology is being considered. The component that provides the interface between the sodium and supercritical CO2 is a compact heat exchanger known as a printed circuit heat exchanger (PCHE). This heat exchanger has very small coolant flow passages that may foul or

53

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment |  

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

Obtains Patent for Nuclear Reactor Sodium Cleanup Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment March 28, 2013 - 12:00pm Addthis CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. Piping in the east boiler basement of the sodium processing building was color coded for easy identification. Orange indicates sodium and green identifies cooling water.

54

Low-Pressure Sodium Lighting Basics | Department of Energy  

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

Low-Pressure Sodium Lighting Basics Low-Pressure Sodium Lighting Basics Low-Pressure Sodium Lighting Basics August 16, 2013 - 10:17am Addthis Low-pressure sodium lighting provides more energy-efficient outdoor lighting than high-intensity discharge lighting, but it has very poor color rendition. Typical applications include highway and security lighting, where color is not important. Low-pressure sodium lamps work somewhat like fluorescent lamps. Like high-intensity discharge lighting, low-pressure sodium lamps require up to 10 minutes to start and have to cool before they can restart. Therefore, they are most suitable for applications in which they stay on for hours at a time. They are not suitable for use with motion detectors. The chart below compares low-pressure sodium lamps and high-intensity

55

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment |  

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

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment March 28, 2013 - 12:00pm Addthis CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. Piping in the east boiler basement of the sodium processing building was color coded for easy identification. Orange indicates sodium and green identifies cooling water.

56

Recent Sodium Technology Development for the Decommissioning of the Rapsodie and Superphenix Reactors and the Management of Sodium Wastes  

SciTech Connect (OSTI)

The Commissariat a l'Energie Atomique (CEA) has recently developed and/or conducted experiments on several processes in support of the decommissioning of two French liquid-metal fast reactors (LMFRs), Rapsodie and Superphenix, as well as on the treatment of CEA sodium wastes. CEA has demonstrated that it is possible to define appropriate and efficient processes to meet the different situations encountered in decommissioning LMFRs. Mechanical techniques derived from standard technologies have been successfully applied to fast reactor decommissioning to complete primary vessel draining from sodium. In addition, specific chemical processes have been developed to deal safely with metallic sodium reactivity. Sodium-contaminated equipment has been successfully cleaned by reacting sodium with water mist in an atmosphere with carbon dioxide to form inert sodium carbonate. Bulk sodium has been successfully converted into aqueous caustic soda by injection of liquid-metallic sodium into sodium hydroxide solution. Several processes were also defined to deal with specific sodium wastes. In all cases the principle is based on a sodium/water chemical reaction where the released hydrogen and heat are controlled. With the development of a wide variety of processes, all steps in the decommissioning of LMFRs are assumed to be now properly mastered.

Rodriguez, G.; Gastaldi, O.; Baque, F. [Commissariat a l'Energie Atomique Cadarache (France)

2005-04-15T23:59:59.000Z

57

Fact Sheet: Sodium-Beta Batteries (October 2012)  

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

Sodium-Beta Batteries Sodium-Beta Batteries Improving the performance and reducing the cost of sodium-beta batteries for large-scale energy storage Sodium-beta batteries (Na-beta batteries or NBBs) use a solid beta-alumina (ß˝-Al 2 O 3 ) electrolyte membrane that selectively allows sodium ion transport between a positive electrode (e.g., a metal halide) and a negative sodium electrode. NBBs typically operate at temperatures near 350˚C. They are increasingly used in renewable storage and utility applications due to their high round-trip efficiency, high energy densities, and energy storage capacities ranging from a few kilowatt-hours to multiple megawatt-hours. In fact, U.S. utilities

58

Sodium/Phosphorus-Sulfur Cells II. Phase Equilibria  

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

II. Phase Equilibria II. Phase Equilibria Title Sodium/Phosphorus-Sulfur Cells II. Phase Equilibria Publication Type Journal Article Year of Publication 1996 Authors Ridgway, Paul L., Frank R. McLarnon, and John S. Newman Journal Journal of the Electrochemistry Society Volume 143 Issue 2 Pagination 412-417 Keywords 25 ENERGY STORAGE, 36 MATERIALS SCIENCE, ALUMINIUM OXIDES, equilibrium, performance, PHASE DIAGRAMS, PHOSPHIDES, PHOSPHORUS ADDITIONS, SODIUM COMPOUNDS, SODIUM SULFIDES, SODIUM-SULFUR BATTERIES Abstract Equilibrium open-circuit cell voltage data from a sodium/{beta}{double_prime}-alumina/phosphorus-sulfur cell utilizing P/S ratios of 0, 0.143, and 0.332 and a sodium atom fraction ranging from 0 to 0.4 were interpreted to construct ternary phase diagrams of the Na-P-S ternary system at 350 and 400 C.

59

Review of Chemical Processes for the Synthesis of Sodium Borohydride  

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

Review of Chemical Processes for the Synthesis of Sodium Borohydride Review of Chemical Processes for the Synthesis of Sodium Borohydride Millennium Cell Inc. Prepared by Ying Wu Michael T. Kelly Jeffrey V. Ortega Under DOE Cooperative Agreement DE-FC36-04GO14008 August 2004 Table of Contents Introduction..................................................................................................................................... 1 Section 1: Commercially Practiced Sodium Borohydride Synthesis Process ............................... 2 The Brown-Schlesinger Process ................................................................................................. 2 The Bayer Process.......................................................................................................................

60

Sodium cobalt bronze batteries and a method for making same  

DOE Patents [OSTI]

A solid state secondary battery utilizing a low cost, environmentally sound, sodium cobalt bronze electrode. A method is provided for producing same.

Doeff, Marca M. (Hayward, CA); Ma, Yanping (Berkeley, CA); Visco, Steven J. (Berkeley, CA); DeJonghe, Lutgard (Lafayette, CA)

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Internal temperatures of neutral sodium clusters: a PIE-thermometer  

Science Journals Connector (OSTI)

Distinct temperature effects could be observed in the threshold regions of photoionisation efficiency (PIE) measurements of sodium clusters. Simulations of the PIE thresholds at various temperatures were carried ...

U. Rthlisberger; M. Schr; E. Schumacher

1989-01-01T23:59:59.000Z

62

Function and Regulation of the Saccharomyces cerevisiae ENA Sodium ATPase System  

Science Journals Connector (OSTI)

...sodium when sodium is present in excess in the external medium relies...of sensitivity to sodium and lithium cations (31, 36, 70, 77...confer distinct sodium and lithium tolerances, with the former...The accumulation of sodium or lithium cations in calcineurin-deficient...

Amparo Ruiz; Joaqun Ario

2007-10-19T23:59:59.000Z

63

CX-005775: Categorical Exclusion Determination | Department of Energy  

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

5: Categorical Exclusion Determination 5: Categorical Exclusion Determination CX-005775: Categorical Exclusion Determination Synthesis of Inorganic Materials Using Microwave Reactor CX(s) Applied: B3.6 Date: 04/07/2011 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office A microwave accelerated reaction system (MARS) will be used to synthesize various metal oxides and oxyhydroxides from the corresponding metal nitrates (Aluminiun, Iron, Manganese, Nickel) and sodium hydroxide. In addition, sodium titanate materials will be synthesized from titanium isopropoxide and titanium dioxide. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-005775.pdf More Documents & Publications CX-002987: Categorical Exclusion Determination CX-004813: Categorical Exclusion Determination

64

It's Elemental - Isotopes of the Element Sodium  

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

Neon Neon Previous Element (Neon) The Periodic Table of Elements Next Element (Magnesium) Magnesium Isotopes of the Element Sodium [Click for Main Data] Most of the isotope data on this site has been obtained from the National Nuclear Data Center. Please visit their site for more information. Naturally Occurring Isotopes Mass Number Natural Abundance Half-life 23 100% STABLE Known Isotopes Mass Number Half-life Decay Mode Branching Percentage 18 1.3×10-21 seconds Proton Emission 100.00% 19 < 40 nanoseconds Proton Emission No Data Available 20 447.9 milliseconds Electron Capture with delayed Alpha Decay 20.05% Electron Capture 100.00% 21 22.49 seconds Electron Capture 100.00% 22 2.6027 years Electron Capture 100.00% 23 STABLE - - 24 14.997 hours Beta-minus Decay 100.00%

65

Mercury exosphere I. Global circulation model of its sodium component  

E-Print Network [OSTI]

Mercury exosphere I. Global circulation model of its sodium component Francois Leblanc a,*, R 2010 Accepted 27 April 2010 Available online 5 May 2010 Keywords: Mercury, Atmosphere Aeronomy a b s t r a c t Our understanding of Mercury's sodium exosphere has improved considerably in the last 5

Johnson, Robert E.

66

RESEARCH Open Access Half-molar sodium lactate infusion improves  

E-Print Network [OSTI]

RESEARCH Open Access Half-molar sodium lactate infusion improves cardiac performance in acute heart for the myocardium at rest and during stress. We tested the effects of half-molar sodium lactate infusion on cardiac by 1 ml/kg/h continuous infusion for 24 hours. The control group received only a 3 ml/kg bolus

Paris-Sud XI, Université de

67

Solgel synthesis of sodium and lithium based materials  

Science Journals Connector (OSTI)

Sodium and lithium cobaltates are important materials for thermoelectric and ... the solgel synthesis of sodium- and lithium-based materials by using acetate precursors. The produced Na2/3CoO2, Li(Ni1/3Mn1/3Co1/...

Sandra Hildebrandt; Andreas Eva

2012-09-01T23:59:59.000Z

68

Alternatives for sodium-potassium alloy treatment  

SciTech Connect (OSTI)

Sodium-potassium alloy (NaK) is currently treated at the Y-12 Plant by open burning. Due to uncertainties with future permits for this process alternative treatment methods were investigated, revealing that two treatment processes are feasible. One process reacts the NaK with water in a highly concentrated molten caustic solution (sodium and potassium hydroxide). The final waste is a caustic that may be used elsewhere in the plant. This process has two safety concerns: Hot corrosive materials used throughout the process present handling difficulties and the process must be carefully controlled (temperature and water content) to avoid explosive NaK reactions. To avoid these problems a second process was developed that dissolves NaK in a mixture of propylene glycol and water at room temperature. While this process is safer, it generates more waste than the caustic process. The waste may possibly be used as a carbon food source in biological waste treatment operations at the Y-12 Plant. Experiments were conducted to demonstrate both processes, and they showed that both processes are feasible alternatives for NaK treatment. Process flow sheets with mass balances were generated for both processes and compared. While the caustic process generates less waste, the propylene glycol process is safer in several ways (temperature, material handling, and reaction control). The authors recommend that the propylene glycol alternative be pursued further as an alternative for NaK treatment. To optimize this process for a larger scale several experiments should be conducted. The amount of NaK dissolved in propylene glycol and subsequent waste generated should be optimized. The offgas processes should be optimized. The viability of using this waste as a carbon food source at one of the Y-12 Plant treatment facilities should be investigated. If the state accepts this process as an alternative, design and construction of a pilot-scale treatment system should begin.

Takacs, T.J.; Johnson, M.E.

1993-04-08T23:59:59.000Z

69

Independent Oversight Review, Sodium Bearing Waste Treatment Project -  

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

Sodium Bearing Waste Treatment Sodium Bearing Waste Treatment Project - Contractor - June 2012 Independent Oversight Review, Sodium Bearing Waste Treatment Project - Contractor - June 2012 June 2012 Review of the Sodium Bearing Waste Treatment Project - Integrated Waste Treatment Unit Contractor Operational Readiness Review This report documents the U.S. Department of Energy (DOE) Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security (HSS), independent review of the Sodium Bearing Waste Treatment Project-Integrated Waste Treatment Unit (SBWTP-IWTU) contractor Operational Readiness Review (C-ORR). The review was conducted at the Idaho Site from February 27 to March 6, 2012. This report discusses the background, scope, results, and conclusions of the review, as well as

70

Independent Oversight Assessment, Idaho Cleanup Project Sodium Bearing  

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

Idaho Cleanup Project Sodium Idaho Cleanup Project Sodium Bearing Waste Treatment Project - November 2012 Independent Oversight Assessment, Idaho Cleanup Project Sodium Bearing Waste Treatment Project - November 2012 November 2012 Assessment of Nuclear Safety Culture at the Idaho Cleanup Project Sodium Bearing Waste Treatment Project The U.S. Department of Energy (DOE) Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security (HSS), conducted an independent assessment of nuclear safety culture at the DOE Sodium Bearing Waste Treatment Project (SBWTP). The primary objective of the evaluation was to provide information regarding the status of the safety culture at SBWTP. The data collection phase of the assessment occurred in April and May 2012. SBWTP is one of DOE's largest nuclear

71

Independent Oversight Review, Sodium Bearing Waste Treatment Project -  

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

Sodium Bearing Waste Treatment Sodium Bearing Waste Treatment Project - Federal - June 2012 Independent Oversight Review, Sodium Bearing Waste Treatment Project - Federal - June 2012 June 2012 Review of the Sodium Bearing Waste Treatment Project - Integrated Waste Treatment Unit Federal Operational Readiness Review This report documents the U.S. Department of Energy (DOE) Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security (HSS), independent review of the Sodium Bearing Waste Treatment Project-Integrated Waste Treatment Unit (SBWTP-IWTU) DOE (Federal) Operational Readiness Review (D-ORR). The review was performed by the HSS Office of Safety and Emergency Management Evaluations and was intended to assess the effectiveness of the CORR process as implemented for

72

EIS-0287: Notice of Preferred Sodium Bearing Waste Treatment Technology |  

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

Preferred Sodium Bearing Waste Treatment Preferred Sodium Bearing Waste Treatment Technology EIS-0287: Notice of Preferred Sodium Bearing Waste Treatment Technology Idaho High-Level Waste (HLW) and Facilities Disposition In October 2002, the U.S. Department of Energy (DOE or the Department) issued the Final Idaho High-Level Waste (HLW) and Facilities Disposition Environmental Impact Statement (DOE/EIS-0287 (Final EIS)). The Final EIS contains an evaluation of reasonable alternatives for the management of mixed transuranic waste/sodium bearing waste (SBW),1 mixed HLW calcine, and associated low-level waste (LLW), as well as disposition alternatives for HLW facilities when their missions are completed. DOE/EIS-0287, Notice of Preferred Sodium Bearing Waste Treatment Technology, Office of Environmental Management, Idaho, 70 FR 44598 (August

73

Production of sodium-22 from proton irradiated aluminum  

DOE Patents [OSTI]

A process for selective separation of sodium-22 from a proton irradiated minum target including dissolving a proton irradiated aluminum target in hydrochloric acid to form a first solution including aluminum ions and sodium ions, separating a portion of the aluminum ions from the first solution by crystallization of an aluminum salt, contacting the remaining first solution with an anion exchange resin whereby ions selected from the group consisting of iron and copper are selectively absorbed by the anion exchange resin while aluminum ions and sodium ions remain in solution, contacting the solution with an cation exchange resin whereby aluminum ions and sodium ions are adsorbed by the cation exchange resin, and, contacting the cation exchange resin with an acid solution capable of selectively separating the adsorbed sodium ions from the cation exchange resin while aluminum ions remain adsorbed on the cation exchange resin is disclosed.

Taylor, Wayne A. (Los Alamos, NM); Heaton, Richard C. (Los Alamos, NM); Jamriska, David J. (Los Alamos, NM)

1996-01-01T23:59:59.000Z

74

Theoretical Adiabatic Temperature and Chemical Composition of Sodium Combustion Flame  

SciTech Connect (OSTI)

Sodium fire safety analysis requires fundamental combustion properties, e.g., heat of combustion, flame temperature, and composition. We developed the GENESYS code for a theoretical investigation of sodium combustion flame.Our principle conclusions on sodium combustion under atmospheric air conditions are (a) the maximum theoretical flame temperature is 1950 K, and it is not affected by the presence of moisture; the uppermost limiting factor is the chemical instability of the condensed sodium-oxide products under high temperature; (b) the main combustion product is liquid Na{sub 2}O in dry air condition and liquid Na{sub 2}O with gaseous NaOH in moist air; and (c) the chemical equilibrium prediction of the residual gaseous reactants in the flame is indispensable for sodium combustion modeling.

Okano, Yasushi; Yamaguchi, Akira [O-arai Engineering Center (Japan)

2003-12-15T23:59:59.000Z

75

E-Print Network 3.0 - acetate sodium lactate Sample Search Results  

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

sodium-high lactate infusion'. Of course, it is easy to demonstrate that high lactate infusion... . Also, sodium-lactate infusion in humans ... Source: Ecole Polytechnique, Centre...

76

High-resolution lidar observations of mesospheric sodium and implications for adaptive optics  

Science Journals Connector (OSTI)

Observations of sodium density variability in the upper mesosphere/lower thermosphere, obtained using a high-resolution lidar system, show rapid fluctuations in the sodium centroid...

Pfrommer, Thomas; Hickson, Paul

2010-01-01T23:59:59.000Z

77

Categorical Exclusion Determinations: Idaho Operations Office | Department  

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

Idaho Operations Office Idaho Operations Office Categorical Exclusion Determinations: Idaho Operations Office Categorical Exclusion Determinations issued by Idaho Operations Office. DOCUMENTS AVAILABLE FOR DOWNLOAD July 11, 2013 CX-010699: Categorical Exclusion Determination North Boulevard Annex Lease Termination CX(s) Applied: B1.24 Date: 07/11/2013 Location(s): Idaho Offices(s): Idaho Operations Office July 11, 2013 CX-010698: Categorical Exclusion Determination Modeling and Validation of Sodium Plugging for Heat Exchangers in Sodium-cooled Fast Reactor Systems CX(s) Applied: B3.6 Date: 07/11/2013 Location(s): Illinois Offices(s): Idaho Operations Office June 25, 2013 CX-010701: Categorical Exclusion Determination Materials and Fuels Complex Diversion Dam CX(s) Applied: B2.5 Date: 06/25/2013

78

EXAFS studies of sodium silicate glasses containing dissolved actinides  

SciTech Connect (OSTI)

Sodium silicate glasses containing dissolved Th, U, Np, and Pu have been studied using the EXAFS technique. Th/sup 4 +/, U/sup 4 +/, Np/sup 4 +/, and Pu/sup 4 +/ ions in the silicate glasses are 8-fold coordinated to oxygen neighbors. The higher valent U/sup 6 +/ and Np/sup 5 +/ ions have complex local symmetries. The U/sup 6 +/ ions appear in a uranyl configuration with 2 oxygen atoms at 1.85A and 4 at 2.25A from the U ion. The Np/sup 5 +/ local symmetry is more complex and difficult to determine uniquely. The U/sup 6 +/ glasses show substantial clustering of the uranium atoms. A structural model, with nearly planar uranyl sheets sandwiched between alkali and silica layers, is used to explain the U/sup 6 +/ EXAFS data. This model allows us to understand why U/sup 6 +/ ions are much more soluble in the glasses than the actinide 4/sup +/ ions. 4 references, 2 figures.

Knapp, G.S.; Veal, B.W.; Paulikas, A.P.; Mitchell, A.W.; Lam, D.J.; Klippert, T.E.

1984-07-01T23:59:59.000Z

79

Tolerance Test of Eisenia Fetida for Sodium Chloride  

SciTech Connect (OSTI)

Saltwater spills that make soil excessively saline often occur at petroleum exploration and production (E&P) sites and are ecologically damaging. Brine scars appear when produced water from an E&P site is spilled onto surrounding soil, causing loss of vegetation and subsequent soil erosion. Revegetating lands damaged by brine water can be difficult. The research reported here considers earthworms as a bioremedial treatment for increasing the salt mobility in this soil and encouraging plant growth and a healthy balance of soil nutrients. To determine the practical application of earthworms to remediate brine-contaminated soil, a 17-d test was conducted to establish salt tolerance levels for the common compost earthworm (Eisenia fetida) and relate those levels to soil salinity at brine-spill sites. Soil samples were amended with sodium chloride in concentrations ranging from 1 to 15 g/kg, which represent contamination levels at some spill sites. The survival rate of the earthworms was near 90% in all tested concentrations. Also, reproduction was noted in a number of the lower-concentration test replicates but absent above the 3-g/kg concentrations. Information gathered in this investigation can be used as reference in further studies of the tolerance of earthworms to salty soils, as results suggest that E. fetida is a good candidate to enhance remediation at brine-damaged sites.

Kerr, M.; Stewart, A.J.

2003-01-01T23:59:59.000Z

80

Development of high performance sodium/metal chloride cells  

SciTech Connect (OSTI)

Sodium/metal chloride (MCl{sub 2}) cells and batteries are being studied at Argonne National Laboratory (ANL) for stationary energy storage and transportation applications. The work is being directed toward (1) development of thin, high-capacity density electrodes and inexpensive {beta}{double prime}-alumina-glass composite electrolyte materials to replace {beta}{double prime}-alumina and (2) the development of models to project MCl{sub 2} system performances. In our NiCl{sub 2} electrode work, the effects of charge/discharge rates, temperature, electrode porosity, and sulfur content on electrode performance were determined using annular electrodes fabricated in the uncharged state. Of all electrode design parameters mentioned, electrode porosity, sulfur content, and charge rates have the greatest effect on utilization and on the area-specific impedance. The {beta}{double prime}-alumina-glass composite electrolyte work has led to the development of a highly conductive (3.3 {times} 10{sup {minus}2}S/cm at 250{degree}C) composite material. Preliminary modeling studies indicate that the performance of the MCl{sub 2} electrodes can be fitted by a mathematic model very successfully and that cell electrolyte configurations of either multiple tubes joined at a header or compartmented flat structures of either {beta}{double prime}-alumina or of the composite material would result in high-performance batteries with power-to-energy ratios of about 5. 15 refs., 8 figs., 4 tabs.

Vissers, D.R.; Bloom, I.D.; Hash, M.C.; Redey, L.; Hammer, C.L.; Dees, D.W.; Nelson, P.A.

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Risk Management for Sodium Fast Reactors.  

SciTech Connect (OSTI)

Accident management is an important component to maintaining risk at acceptable levels for all complex systems, such as nuclear power plants. With the introduction of self - correcting, or inherently safe, reactor designs the focus has shifted from management by operators to allowing the syste m's design to manage the accident. While inherently and passively safe designs are laudable, extreme boundary conditions can interfere with the design attributes which facilitate inherent safety , thus resulting in unanticipated and undesirable end states. This report examines an inherently safe and small sodium fast reactor experiencing a beyond design basis seismic event with the intend of exploring two issues : (1) can human intervention either improve or worsen the potential end states and (2) can a Bayes ian Network be constructed to infer the state of the reactor to inform (1). ACKNOWLEDGEMENTS The author s would like to acknowledge the U.S. Department of E nergy's Office of Nuclear Energy for funding this research through Work Package SR - 14SN100303 under the Advanced Reactor Concepts program. The authors also acknowledge the PRA teams at A rgonne N ational L aborator y , O ak R idge N ational L aborator y , and I daho N ational L aborator y for their continue d contributions to the advanced reactor PRA mission area.

Denman, Matthew R; Groth, Katrina; Cardoni, Jeffrey N; Wheeler, Timothy A.

2015-01-01T23:59:59.000Z

82

Pulse radiolysis of solutions of sodium tetraphenylborate  

SciTech Connect (OSTI)

Pulse radiolysis of solutions of sodium tetraphenylborate (NaBPh/sub 4/) indicates that the absorption observed in organic amides with lambda/sub max/ in the range 650-724 nm is not due to Na/sup -/, an electron adduct to BPh/sub 4//sup -/, a triplet excited state, or a proton-donating solvent cation. Experiments in aqueous solution are described in which the reactions of selected radicals with NaBPh/sub 4/ are studied. One-electron oxidation of NaBPh/sub 4/ by N/sub 3//sup .-/ radicals yields a species, assumed to be NaBPh/sub 4//sup ./, with absorption maxima at 335 and 800 nm. A similar spectrum is observed on pulse radiolysis of solutions of NaBPh/sub 4/ in tetramethylurea (TMU), but the long-wavelength absorption is shifted to 725 nm. The formation of an oxidizing radical in irradiated TMU was confirmed by the observation of I/sub 2//sup .-/ on pulse radiolysis of solutions of KI in this solvent. Pulse radiolysis of solution of NaBPh/sub 4/ and KI in TMU demonstrated that these solutes compete for the oxidizing intermediate.

Liu, K.J.; Langan, J.R.; Salmon, G.A.; Holton, D.M.; Edwards, P.P.

1988-05-05T23:59:59.000Z

83

CX-010698: Categorical Exclusion Determination | Department of Energy  

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

10698: Categorical Exclusion Determination 10698: Categorical Exclusion Determination CX-010698: Categorical Exclusion Determination Modeling and Validation of Sodium Plugging for Heat Exchangers in Sodium-cooled Fast Reactor Systems CX(s) Applied: B3.6 Date: 07/11/2013 Location(s): Illinois Offices(s): Idaho Operations Office Westinghouse proposes to perform development and testing of new experimental techniques for detecting the presence of Na2O, as well as to measure the thickness of the corresponding deposits on channel walls. These tasks will be accomplished using the Sodium Plugging Phenomena Loop (SPPL) available at Argonne National Laboratory. CX-010698.pdf More Documents & Publications CX-000681: Categorical Exclusion Determination CX-010700: Categorical Exclusion Determination CX-008727

84

Internal structure, hygroscopic and reactive properties of mixed sodium  

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

Internal structure, hygroscopic and Internal structure, hygroscopic and reactive properties of mixed sodium methanesulfonate-sodium chloride particles Internal structure, hygroscopic and reactive properties of mixed sodium methanesulfonate-sodium chloride particles Print Friday, 13 May 2011 00:00 Scientists recently combined experimental approaches and molecular dynamics modeling to gain new insights into the internal structure of sea salt particles and relate it to their fundamental chemical reactivity in the atmosphere. This research shows that surface enhancement or depletion of chemical components in marine particles can occur because of the difference in the chemical nature of the species. Because the atmospheric chemistry of the salt particles takes place at the gas-particle interface, understanding their complex surfaces provides new insights about their effect on the environment and climate change. Article Link.

85

Loop simulation capability for sodium-cooled systems  

E-Print Network [OSTI]

A one-dimensional loop simulation capability has been implemented in the thermal-hydraulic analysis code, THERMIT-4E. This code had been used to simulate and investigate flow in test sections of experimental sodium loops ...

Adekugbe, Oluwole A.

1984-01-01T23:59:59.000Z

86

The Salt or Sodium Chloride Content of Feeds  

E-Print Network [OSTI]

1 EXAS AGRICULTURAL EXPERIMENT STATION AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS W. B. BIZZELL, Preeident BULLETIN NO. 271 OCTOBER, 1920 DIVISION OF CHEMISTRY THE SALT OR SODIUM CHLORIDE CONTENT OF FEEDS B. YOUNGBLOOD, DIRECTOK COLLEGE.... ............... Salt content of feecls.. ......... Salt content of mixed feeds.. ................... Summary ancl conclusions. Page. l1 [Blank Page in Original Bulletin] BULLETIN XO. 271. OCTOBE- '"On THE SALT OR SODIUM CHLORIDE CONTENT OF FEI The Texas feed...

Fraps, G. S. (George Stronach); Lomanitz, S. (Sebastian)

1920-01-01T23:59:59.000Z

87

Method of and apparatus for removing silicon from a high temperature sodium coolant  

DOE Patents [OSTI]

A method of and system for removing silicon from a high temperature liquid sodium coolant system for a nuclear reactor. The sodium is cooled to a temperature below the silicon saturation temperature and retained at such reduced temperature while inducing high turbulence into the sodium flow for promoting precipitation of silicon compounds and ultimate separation of silicon compound particles from the liquid sodium.

Yunker, Wayne H. (Richland, WA); Christiansen, David W. (Kennewick, WA)

1987-01-01T23:59:59.000Z

88

CX-003496: Categorical Exclusion Determination | Department of Energy  

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

6: Categorical Exclusion Determination 6: Categorical Exclusion Determination CX-003496: Categorical Exclusion Determination Development of Biofuels Using Ionic Transfer Membranes CX(s) Applied: A9, B3.6 Date: 08/19/2010 Location(s): Las Vegas, Nevada Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Department of Energy is proposing to continue providing funding to the University of Nevada Las Vegas (UNLV) to further their research on the development of a tubular NaSICON (Sodium Super Ionic Conductors) membrane process that produces high-purity sodium methoxide from low-cost aqueous sodium hydroxide. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-003496.pdf More Documents & Publications CX-000934: Categorical Exclusion Determination A Ceramic membrane to Recycle Caustic Caustic Recovery Technology

89

Sodium removal process development for LMFBR fuel subassemblies  

SciTech Connect (OSTI)

Two 37-pin scale models of Clinch River Breeder Reactor Plant fuel subassemblies were designed, fabricated and used at Westinghouse Advanced Reactors Division in the development and proof-testing of a rapid water-based sodium removal process for the ORNL Hot Experimental Facility, Liquid Metal Fast Breeder Reactor Fuel Reprocessing Cycle. Through a series of development tests on one of the models, including five (5) sodium wettings and three (3) high temperature sodium removal operations, optimum process parameters for a rapid water vapor-argon-water rinse process were identified and successfully proof-tested on a second model containing argon-pressurized, sodium-corroded model fuel pins simulating the gas plenum and cladding conditions expected for spent fuel pins in full scale subassemblies. Based on extrapolations of model proof test data, preliminary process parameters for a water vapor-nitrogen-water rinse process were calculated and recommended for use in processing full scale fuel subassemblies in the Sodium Removal Facility of the Fuel Receiving Cell, ORNL HEF.

Simmons, C.R.; Taylor, G.R.

1981-10-01T23:59:59.000Z

90

Development of under sodium inspection techniques for FBR  

SciTech Connect (OSTI)

The reactor vessel of a fast breeder reactor (FBR) is filled with opaque liquid sodium and ultrasonic inspection techniques are effective and useful for observing the in-vessel structures under sodium. Firstly, in the development of the under sodium visual inspection technique, the synthetic aperture focusing technique (SAFT) and cross-correlation processing have been applied to realize ultrasonic 3-dimensional cross-correlation image processing with high resolution. Cross-correlation processing improves the S/N ratio of the ultrasonic echoes which are deteriorated by sodium wetting, and realizes high-density integration of the matrix arrayed transducer. Matrix arrayed transducer, in which 100 piezoelectric elements are arranged as a 10 x 10 matrix array, has been manufactured for the in-water visualizing test. Secondly, in the development of the under sodium volumetric inspection technique, a prototype electric scanning UT sensor has been developed for the volumetric test of the core support structures in the reactor vessel. The UT sensor consists of 60 arrayed piezoelectric elements, non-organic materials such as ceramic backing. Ultrasonic echoes transmitted from the elements is scanned electronically and real-time B-scope images of the structures can be realized. A prototype UT sensor has been tested to evaluate the acoustic characteristics in water and confirm the heat-proof performance under high temperature silicon oil. The performance of the UT sensor satisfied the requirements.

Karasawa, H.; Suzuki, T.; Nagai, S.; Izumi, M.; Kobayashi, T. [Toshiba Corp., Yokohama (Japan); Sasaki, S.; Ota, S.; Kai, M. [Japan Atomic Power Co., Tokyo (Japan)

1996-08-01T23:59:59.000Z

91

ESS 2012 Peer Review - Sodium-based Battery Development - Dave Ingersoll, SNL  

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

Sodium-based Battery Development Sodium-based Battery Development A Family of Batteries for Large Scale Energy Storage D. Ingersoll, C. Apblett, E. Spoerke, K. Zavadil, R. Cygan, J. Ihlefeld, F. Delnick, & T. Anderson Sandia National Laboratories, Albuquerque, NM Prof. E. Wachsman University of Maryland, College Park, MD Profs. R. Kee & J. Porter, Dr. H. Zhu Colorado School of Mines, Golden, CO S. Bhavaraju & M. Robins Ceramatec, Inc, Salt Lake City, UT D. Beeaff CoorsTek, Inc, Golden, CO J. Martin Boulder Ionics, Golden CO US DOE Energy Storage Systems Research Program Peer Review, Washington, DC, Sept. 26-28, 2012 Sodium-based batteries  Purpose  Demonstrate a family of sodium-based battery chemistries  sodium-iodine, sodium-bromine, sodium-air, sodium insertion, sodium-metal, etc

92

Independent Oversight Review, Sodium Bearing Waste Treatment Project -  

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

Contractor - June 2012 Contractor - June 2012 Independent Oversight Review, Sodium Bearing Waste Treatment Project - Contractor - June 2012 June 2012 Review of the Sodium Bearing Waste Treatment Project - Integrated Waste Treatment Unit Contractor Operational Readiness Review This report documents the U.S. Department of Energy (DOE) Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security (HSS), independent review of the Sodium Bearing Waste Treatment Project-Integrated Waste Treatment Unit (SBWTP-IWTU) contractor Operational Readiness Review (C-ORR). The review was conducted at the Idaho Site from February 27 to March 6, 2012. This report discusses the background, scope, results, and conclusions of the review, as well as opportunities for improvement (OFIs) and items identified for further

93

Generation IV International Forum Signs Agreement to Collaborate on Sodium  

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

Forum Signs Agreement to Collaborate on Forum Signs Agreement to Collaborate on Sodium Cooled Fast Reactors Generation IV International Forum Signs Agreement to Collaborate on Sodium Cooled Fast Reactors February 17, 2006 - 11:58am Addthis FUKUI , JAPAN - The Department of Energy today announced that the United States signed a sodium-cooled fast reactor systems arrangement with France and Japan, providing the framework for collaboration among these countries on the research and development of these advanced nuclear reactors. The signing of the agreement took place on February 16, 2006. This arrangement will support the development of technologies associated with the U.S.-led Global Nuclear Energy Partnership (GNEP), announced earlier this month by Secretary of Energy Samuel W. Bodman. GNEP is a

94

Independent Oversight Review, Sodium Bearing Waste Treatment Project -  

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

Federal - June 2012 Federal - June 2012 Independent Oversight Review, Sodium Bearing Waste Treatment Project - Federal - June 2012 June 2012 Review of the Sodium Bearing Waste Treatment Project - Integrated Waste Treatment Unit Federal Operational Readiness Review This report documents the U.S. Department of Energy (DOE) Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security (HSS), independent review of the Sodium Bearing Waste Treatment Project-Integrated Waste Treatment Unit (SBWTP-IWTU) DOE (Federal) Operational Readiness Review (D-ORR). The review was performed by the HSS Office of Safety and Emergency Management Evaluations and was intended to assess the effectiveness of the CORR process as implemented for the SBWTP-IWTU. This review also provides additional data regarding

95

Numerical Methodology to Evaluate Fast Reactor Sodium Combustion  

SciTech Connect (OSTI)

In the present study, a numerical methodology for sodium combustion has been developed for the safety evaluation of a liquid-metal-cooled fast reactor. The methodology includes a fast-running zone model computer program for safety evaluation, a field model program for multidimensional thermal hydraulics, and a chemical reaction analysis program based on chemical equilibrium theory. Two recently performed experiments have been analyzed using the computer programs, and the numerical results are in good agreement with the experiments. Although sodium combustion is a complex phenomenon, use of these computer programs gives better understanding of the coupled thermal hydraulics and chemical reaction.

Yamaguchi, Akira; Takata, Takashi; Okano, Yasushi [Japan Nuclear Cycle Development Institute (Japan)

2001-12-15T23:59:59.000Z

96

The magnesium nutrition of cotton as influenced by sodium  

E-Print Network [OSTI]

1964 Major Subject. Plant Physic logy THE MAGNESIUM NUTRITION OF COTTON AS INFLUENCED BY SODIUM A Thesis By MERVYN M. THENABADU Approved as to style and content by: Chairman of Commi. e Nun Head of Department Member Mem, er Member Member... REVIEW OF LITERATURE (a) Sodium as a plant nutrient (b) I'he role of magnesium in plant nutrition MATERIALS AND METHODS RESUL:S DISCUSSION 13 21 24 (a) The effect of treatments on grcwth and reproduction (b) The effect of treatments on the ccr...

Thenabadu, Mervyn Wellesly

2012-06-07T23:59:59.000Z

97

Aluminum Zintl anion moieties within sodium aluminum clusters  

SciTech Connect (OSTI)

Through a synergetic combination of anion photoelectron spectroscopy and density functional theory based calculations, we have established that aluminum moieties within selected sodium-aluminum clusters are Zintl anions. Sodiumaluminum cluster anions, Na{sub m}Al{sub n}{sup ?}, were generated in a pulsed arc discharge source. After mass selection, their photoelectron spectra were measured by a magnetic bottle, electron energy analyzer. Calculations on a select sub-set of stoichiometries provided geometric structures and full charge analyses for both cluster anions and their neutral cluster counterparts, as well as photodetachment transition energies (stick spectra), and fragment molecular orbital based correlation diagrams.

Wang, Haopeng; Zhang, Xinxing; Ko, Yeon Jae; Grubisic, Andrej; Li, Xiang; Gantefr, Gerd; Bowen, Kit H., E-mail: AKandalam@wcupa.edu, E-mail: kiran@mcneese.edu, E-mail: kbowen@jhu.edu [Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218 (United States); Schnckel, Hansgeorg [Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, 76128 Karlsruhe (Germany)] [Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, 76128 Karlsruhe (Germany); Eichhorn, Bryan W. [Department of Chemistry, University of Maryland at College Park, College Park, Maryland 20742 (United States)] [Department of Chemistry, University of Maryland at College Park, College Park, Maryland 20742 (United States); Lee, Mal-Soon; Jena, P. [Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284 (United States)] [Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284 (United States); Kandalam, Anil K., E-mail: AKandalam@wcupa.edu, E-mail: kiran@mcneese.edu, E-mail: kbowen@jhu.edu [Department of Physics, West Chester University of Pennsylvania, West Chester, Pennsylvania 19383 (United States); Kiran, Boggavarapu, E-mail: AKandalam@wcupa.edu, E-mail: kiran@mcneese.edu, E-mail: kbowen@jhu.edu [Department of Chemistry, McNeese State University, Lake Charles, Louisiana 70609 (United States)] [Department of Chemistry, McNeese State University, Lake Charles, Louisiana 70609 (United States)

2014-02-07T23:59:59.000Z

98

Isotope loss from exhaled moisture and correlation of multifrequency bioelectrical impedance to body fluid compartments measured by intravenous deuterium oxide and sodium bromide dilution in dogs  

E-Print Network [OSTI]

for this route of isotope loss was necessary. Sodium bromide concentrations at 90 minutes and 180 minutes were tested for statistical equivalency to determine if NaBr had equilibrated by 90 minutes. Finally, impedance measured with electrodes separated by 2...

Witten, Tiffani Tipton

2012-06-07T23:59:59.000Z

99

Unsteady aspects of sodiumwaterair reaction  

Science Journals Connector (OSTI)

One important issue for the Sodium Fast Reactor (SFR) concept is the reactivity of metallic sodium and its exothermal reaction with water. In particular during equipments washing operations, sodium needs to be firstly converted (destroyed) into non reactive species via a chemical reaction with water. Today, such operations are performed in tanks that confine the system and mitigate the consequences of any possible abnormal condition. Some data were obtained from experiments run by the French Commissariat lEnergie Atomique et aux Energies Alternatives (CEA) and were used as a basis for modelling. Among the principal phenomena identified so far are rapid water vaporization, hydrogen emission and explosion in air. High explosive-like pressure waves are generated from which sodium fragmentation and dispersion in water may ensue increasing the overall reactivity. It is extremely important to clarify the phenomenology to allow realistic extrapolation to full scale plants. A state of the art is proposed in this paper, starting from available experimental data and present perception of the physics. A comparison with present modelling strategy is also performed, underlining the necessity to improve a different and more physical approach aimed to well represent dynamic aspects of reaction.

Sofia Carnevali; Christophe Proust; Michel Soucille

2013-01-01T23:59:59.000Z

100

Multiple reheat helium Brayton cycles for sodium fast reactors  

SciTech Connect (OSTI)

Sodium fast reactors (SFR) traditionally adopt the steam Rankine cycle for power conversion. The resulting potential for water-sodium reaction remains a continuing concern which at least partly delays the SFR technology commercialization and is a contributor to higher capital cost. Supercritical CO2 provides an alternative, but is also capable of sustaining energetic chemical reactions with sodium. Recent development on advanced inert-gas Brayton cycles could potentially solve this compatibility issue, increase thermal efficiency, and bring down the capital cost close to light water reactors. In this paper, helium Brayton cycles with multiple reheat and intercooling states are presented for SFRs with reactor outlet temperatures in the range of 510C to 650C. The resulting thermal efficiencies range from 39% and 47%, which is comparable with supercritical recompression CO2 cycles (SCO2 cycle). A systematic comparison between multiple reheat helium Brayton cycle and the SCO2 cycle is given, considering compatibility issues, plant site cooling temperature effect on plant efficiency, full plant cost optimization, and other important factors. The study indicates that the multiple reheat helium cycle is the preferred choice over SCO2 cycle for sodium fast reactors.

Haihua Zhao; Per F. Peterson

2008-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

FATE OF INGESTED SODIUM BICARBONATE IN THE FOWL  

E-Print Network [OSTI]

. 100 calcium while rations 3 and4contained 3.85 p. 100 calcium. Sodium bicarbonate was added at a level. The duodenum was entered at the top of the loop and the electrode tip immersed its full length down the posterior side of the loop. The #12;mid-intestinal reading was taken with the incision at approximately

Paris-Sud XI, Université de

102

Process for making boron nitride using sodium cyanide and boron  

DOE Patents [OSTI]

This a very simple process for making boron nitride by mixing sodium cyanide and boron phosphate and heating the mixture in an inert atmosphere until a reaction takes place. The product is a white powder of boron nitride that can be used in applications that require compounds that are stable at high temperatures and that exhibit high electrical resistance.

Bamberger, Carlos E. (Oak Ridge, TN)

1990-01-01T23:59:59.000Z

103

Method of Manufacturing Micro-Disperse Particles of Sodium Borohydride  

DOE Patents [OSTI]

A compact solid source of hydrogen gas, where the gas is generated by contacting water with micro-disperse particles of sodium borohydride in the presence of a catalyst, such as cobalt or ruthenium. The micro-disperse particles can have a substantially uniform diameter of 1-10 microns, and preferably about 3-5 microns. Ruthenium or cobalt catalytic nanoparticles can be incorporated in the micro-disperse particles of sodium borohydride, which allows a rapid and complete reaction to occur without the problems associated with caking and scaling of the surface by the reactant product sodium metaborate. A closed loop water management system can be used to recycle wastewater from a PEM fuel cell to supply water for reacting with the micro-disperse particles of sodium borohydride in a compact hydrogen gas generator. Capillary forces can wick water from a water reservoir into a packed bed of micro-disperse fuel particles, eliminating the need for using an active pump.

Kravitz, Stanley H. (Placitas, NM); Hecht, Andrew M. (Sandia Park, NM); Sylwester. Alan P. (Albuquerque, NM); Bell, Nelson S. (Albuquerque, NM)

2008-09-23T23:59:59.000Z

104

Method of generating hydrogen gas from sodium borohydride  

DOE Patents [OSTI]

A compact solid source of hydrogen gas, where the gas is generated by contacting water with micro-disperse particles of sodium borohydride in the presence of a catalyst, such as cobalt or ruthenium. The micro-disperse particles can have a substantially uniform diameter of 1-10 microns, and preferably about 3-5 microns. Ruthenium or cobalt catalytic nanoparticles can be incorporated in the micro-disperse particles of sodium borohydride, which allows a rapid and complete reaction to occur without the problems associated with caking and scaling of the surface by the reactant product sodium metaborate. A closed loop water management system can be used to recycle wastewater from a PEM fuel cell to supply water for reacting with the micro-disperse particles of sodium borohydride in a compact hydrogen gas generator. Capillary forces can wick water from a water reservoir into a packed bed of micro-disperse fuel particles, eliminating the need for using an active pump.

Kravitz, Stanley H. (Placitas, NM); Hecht, Andrew M. (Sandia Park, NM); Sylwester, Alan P. (Albuquerque, NM); Bell, Nelson S. (Albuquerque, NM)

2007-12-11T23:59:59.000Z

105

Applicability of RELAP5-3D for Thermal-Hydraulic Analyses of a Sodium-Cooled Actinide Burner Test Reactor  

SciTech Connect (OSTI)

The Actinide Burner Test Reactor (ABTR) is envisioned as a sodium-cooled, fast reactor that will burn the actinides generated in light water reactors to reduce nuclear waste and ease proliferation concerns. The RELAP5-3D computer code is being considered as the thermal-hydraulic system code to support the development of the ABTR. An evaluation was performed to determine the applicability of RELAP5-3D for the analysis of a sodium-cooled fast reactor. The applicability evaluation consisted of several steps, including identifying the important transients and phenomena expected in the ABTR, identifying the models and correlations that affect the codes calculation of the important phenomena, and evaluating the applicability of the important models and correlations for calculating the important phenomena expected in the ABTR. The applicability evaluation identified code improvements and additional models needed to simulate the ABTR. The accuracy of the calculated thermodynamic and transport properties for sodium was also evaluated.

C. B. Davis

2006-07-01T23:59:59.000Z

106

Chemistry of Petroleum Crude Oil Deposits: Sodium Naphthenates 2009 NHMFL Science Highlight for NSF  

E-Print Network [OSTI]

Chemistry of Petroleum Crude Oil Deposits: Sodium Naphthenates 2009 NHMFL Science Highlight for NSF-355. Chemistry of Petroleum Crude Oil Deposits: Sodium Naphthenates 2009 NHMFL Science Highlight for NSF DMR

Weston, Ken

107

Structural basis for the transformation pathways of the sodium naproxen anhydrate-hydrate system  

Science Journals Connector (OSTI)

Relationships between the crystal structures of two polymorphs of sodium naproxen dihydrate and its monohydrate and anhydrate phases provide a basis to rationalize the observed transformation pathways in the sodium (S)-naproxen anhydrate-hydrate system.

Bond, A.D.

2014-08-20T23:59:59.000Z

108

SnSb@carbon nanocable anchored on graphene sheets for sodium ion batteries  

Science Journals Connector (OSTI)

The development of materials with unique nanostructures is an effective strategy for the improvement of sodium storage in sodium ion batteries to achieve stable cycling performance and good ... , SnSbcore/carbon-...

Li Li; Kuok Hau Seng; Dan Li; Yongyao Xia; Hua Kun Liu; Zaiping Guo

2014-10-01T23:59:59.000Z

109

Discovery of Sodium and Potassium Vapor in the Atmosphere of the Moon  

Science Journals Connector (OSTI)

...lunar atmosphere: Solar-wind implantation and subsequent release of sodium, solar wind-driven sputtering of sodium...internal release. Solar-wind implantation can only supply...near the south pole at large local solar zenith angles suggests...

A. E. Potter; T. H. Morgan

1988-08-05T23:59:59.000Z

110

Go No-Go Recommendation for Sodium Borohydride for On-Board Vehicular Hydrogen Storage  

Fuel Cell Technologies Publication and Product Library (EERE)

Independent review panel recommendation for go/no go decision on use of hydrolysis of sodium borohydride for hydrogen storage.

111

Neutronic Assessment of Transmutation Target Compositions in Heterogeneous Sodium Fast Reactor Geometries  

SciTech Connect (OSTI)

The sodium fast reactor is under consideration for consuming the transuranic waste in the spent nuclear fuel generated by light water reactors. This work is concerned with specialized target assemblies for an oxide-fueled sodium fast reactor that are designed exclusively for burning the americium and higher mass actinide component of light water reactor spent nuclear fuel (SNF). The associated gamma and neutron radioactivity, as well as thermal heat, associated with decay of these actinides may significantly complicate fuel handling and fabrication of recycled fast reactor fuel. The objective of using targets is to isolate in a smaller number of assemblies these concentrations of higher actinides, thus reducing the volume of fuel having more rigorous handling requirements or a more complicated fabrication process. This is in contrast to homogeneous recycle where all recycled actinides are distributed among all fuel assemblies. Several heterogeneous core geometries were evaluated to determine the fewest target assemblies required to burn these actinides without violating a set of established fuel performance criteria. The DIF3D/REBUS code from Argonne National Laboratory was used to perform the core physics and accompanying fuel cycle calculations in support of this work. Using the REBUS code, each core design was evaluated at the equilibrium cycle condition.

Samuel E. Bays; Rodolfo M. Ferrer; Michael A. Pope; Benoit Forget; Mehdi Asgari

2008-02-01T23:59:59.000Z

112

Effect of sodium montmorillonite nanoclay on the water absorbency and cationic dye removal of carrageenan-based nanocomposite superabsorbents  

Science Journals Connector (OSTI)

Nanocomposite superabsorbents were synthesized by simultaneously solution copolymerization of acrylamide (AAm) and sodium acrylate (Na-AA) in the presence of carrageenan biopolymer and sodium montmorillonite (Na-...

Gholam Reza Mahdavinia; Bakhshali Massoumi; Karim Jalili

2012-08-01T23:59:59.000Z

113

CX-003968: Categorical Exclusion Determination | Department of Energy  

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

68: Categorical Exclusion Determination 68: Categorical Exclusion Determination CX-003968: Categorical Exclusion Determination Phosphate Glass Development and Demonstration CX(s) Applied: B3.6 Date: 09/03/2010 Location(s): Aiken, South Carolina Office(s): Savannah River Operations Office The scope of this task is to make various molar (sodium) AZ-102 salt simulants to determine the quantity of dissolved solids still present and the ability to mobilize these solids. Various molar (sodium) AZ-102 salt simulant will then be blended with glass former chemicals (GFCs) to make AZ-102 melter feed slurries. These slurries will be analyzed to determine a combination of salt solution and GFCs that make a good suspension for melter tests that will occur at Idaho National Laboratory and Pacific Northwest National Laboratory.

114

Microsoft Word - EC Sodium coolant removal.doc  

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

1 1 SECTION A. Project Title: MFC - EBR-II Sodium Removal/RCRA Closure Activities SECTION B . Project Description The proposed action will remove the sodium from the Experimental Breeder Reactor (EBR)-II piping system and tanks to achieve clean-closure for eventual decommissioning, deactivation and demolition (DD&D). The clean-closure will be completed in compliance with the EBR-II Hazardous Waste Management Act/Resource Conservation and Recovery Act (HWMA/RCRA) Storage and Treatment Permit PER-120, which includes the closure plan. EBR-II is located at the Materials and Fuels Complex at the Idaho National Laboratory. The EBR-II DD&D actions will be addressed under the Comprehensive Environmental Response Compensation, and Liability Act, specifically, the Engineering Evaluation/Cost

115

Sodium-Bearing Waste Treatment, Applied Technology Plan  

SciTech Connect (OSTI)

Settlement Agreement between the Department of Energy and the State of Idaho mandates treatment of sodium-bearing waste at the Idaho Nuclear Technology and Engineering Center within the Idaho National Engineering and Environmental Laboratory. One of the requirements of the Settlement Agreement is to complete treatment of sodium-bearing waste by December 31, 2012. Applied technology activities are required to provide the data necessary to complete conceptual design of four identified alternative processes and to select the preferred alternative. To provide a technically defensible path forward for the selection of a treatment process and for the collection of needed data, an applied technology plan is required. This document presents that plan, identifying key elements of the decision process and the steps necessary to obtain the required data in support of both the decision and the conceptual design. The Sodium-Bearing Waste Treatment Applied Technology Plan has been prepared to provide a description/roadmap of the treatment alternative selection process. The plan details the results of risk analyzes and the resulting prioritized uncertainties. It presents a high-level flow diagram governing the technology decision process, as well as detailed roadmaps for each technology. The roadmaps describe the technical steps necessary in obtaining data to quantify and reduce the technical uncertainties associated with each alternative treatment process. This plan also describes the final products that will be delivered to the Department of Energy Idaho Operations Office in support of the office's selection of the final treatment technology.

Lance Lauerhass; Vince C. Maio; S. Kenneth Merrill; Arlin L. Olson; Keith J. Perry

2003-06-01T23:59:59.000Z

116

Sodium boiling dryout correlation for LMFBR fuel assemblies  

SciTech Connect (OSTI)

Under certain postulated accident conditions for a Liquid Metal Fast Breeder Reactor (LMFBR), such as the failure of the shutdown heat removal system (SHRS), sodium boiling and clad dryout might occur in the fuel assemblies. It is important to predict the time from boiling inception to dryout, since sustained clad dryout will result in core damage. In this paper a dryout correlation is presented. This correlation is based on 21 boiling tests which resulted in dryout from the THORS BUNDLE 6A, a 19-pin full-length simulated LMFBR fuel assembly and from the THORS Bundle 9, a 61-pin full-length simulated LMFBR fuel assembly. All these tests were performed as follows: for each specified bundle power, an initial steady-state high sodium flow was established, for which sodium boiling did not occur in the bundle. The temperature at the outlet of the test section was approx. 700/sup 0/C. Then, using a programmable pump control system, the flow was reduced to a low value and boiling occurred.

Carbajo, J.J.; Rose, S.D.

1984-01-01T23:59:59.000Z

117

EIS-0306: Treatment and Management of Sodium-Bonded Spent Nuclear Fuel |  

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

306: Treatment and Management of Sodium-Bonded Spent Nuclear 306: Treatment and Management of Sodium-Bonded Spent Nuclear Fuel EIS-0306: Treatment and Management of Sodium-Bonded Spent Nuclear Fuel Summary This EIS evaluates the potential environmental impacts of the proposed electrometallurgical treatment of DOE-owned sodium bonded spent nuclear fuel in the Fuel Conditioning Facility at Argonne National Laboratory-West (ANL-W). Public Comment Opportunities None available at this time. Documents Available for Download September 19, 2000 EIS-0306: Record of Decision Treatment and Management of Sodium-Bonded Spent Nuclear Fuel July 1, 2000 EIS-0306: Final Environmental Impact Statement Treatment and Management of Sodium-Bonded Spent Nuclear Fuel July 1, 1999 EIS-0306: Draft Environmental Impact Statement Treatment of Sodium-Bonded Spent Nuclear Fuel

118

Preparation and humidity controlling behaviors of sepiolite/polyacrylic acid (sodium) composite  

Science Journals Connector (OSTI)

Sepiolite/polyacrylic acid (sodium) nanocomposite was synthesized using inverse suspension polymerization method under different sepiolite content, dispersant content and neutralization degree with orthogonal experiments. The surface morphology and structure of sepiolite/polyacrylic acid composite were observed and analyzed, and the humidity controlling properties of composites were determined by absorption and desorption testing. The results showed that sepiolite/polyacrylic acid composite was in a fine particle with rough surface. During the polymerization process, acrylic acid monomer was grafted with hydroxyl on the surface of sepiolite and then intercalated successfully into the tetrahedral silica layers of sepiolite. With the increasing of sepiolite content, dispersant conten, neutralization degree and the humidity controlling behaviors of composite rose initially and then dropped down. The impact of three factors on the humidity controlling behavior of composites increased by the order of sepiolite content, dispersant content and neutralization degree. The optimum preparation parameters are sepiolite content of 4%, dispersant content of 15% and neutralization degree of 90%.

Jihui Wang; Shuping Ren; Mengjie Guo

2012-01-01T23:59:59.000Z

119

Ion Recognition Approach to Volume Reduction of Alkaline Tank Waste by Separation and Recycle of Sodium Hydroxide and Sodium Nitrate  

SciTech Connect (OSTI)

Disposal of high-level nuclear waste is horrendously expensive, in large part because the actual radioactive matter in the tanks has been diluted over 1000-fold by ordinary inorganic chemicals. Treatment processes themselves can exacerbate the problem by adding further volume to the waste. Waste retrieval and sludge washing, for example, will require copious amounts of sodium hydroxide. If the needed sodium hydroxide could be separated from the waste and recycled, however, the addition of fresh sodium hydroxide could be avoided, ultimately reducing the final waste volume and associated disposal costs. The major objective of this research is to explore new liquid-liquid extraction approaches to the selective separation of sodium hydroxide from alkaline high-level wastes stored in underground tanks at the Hanford and Savannah River sites. Consideration is also given to separating potassium and abundant anions, including nitrate, nitrite, aluminate, and carbonate. Salts of these ions represent possible additional value for recycle, alternative disposal, or even use as commodity chemicals. A comprehensive approach toward understanding the extractive chemistry of these salts is envisioned, involving systems of varying complexity, from use of simple solvents to new bifunctional host molecules for ion-pair recognition. These extractants will ideally require no adjustment of the waste composition and will release the extracted salt into water, thereby consuming no additional chemicals and producing no additional waste volume. The overall goal of this research is to provide a scientific foundation upon which the feasibility of new liquid-liquid extraction chemistry applicable to the bulk reduction of the volume of tank waste can be evaluated.

Moyer, Bruce A.; Marchand, Alan P.

2001-06-01T23:59:59.000Z

120

Ion Recognition Approach to Volume Reduction of Alkaline Tank Waste by Separation and Recycle of Sodium Hydroxide and Sodium Nitrate  

SciTech Connect (OSTI)

Disposal of high- level waste is horrendously expensive, in large part because the actual radioactive matter in the tanks has been diluted over 1000-fold by ordinary inorganic chemicals. Treatment processes themselves can exacerbate the problem by adding further volume to the waste. Waste retrieval and sludge washing, for example, will require copious amounts of sodium hydroxide. If the needed sodium hydroxide could be separated from the waste and recycled, however, the addition of fresh sodium hydroxide could be avoided, ultimately reducing the final waste volume and associated disposal costs. The major objective of this research is to explore new liquid- liquid extraction approaches to the selective separation of sodium hydroxide from alkaline high-level wastes stored in underground tanks at the Hanford and Savannah River sites. Consideration is also given to separating potassium and abundant anions, including nitrate, nitrite, aluminate, and carbonate. Salts of these ions represent possible additional value for recycle, alternative disposal, or even use as commodity chemicals. A comprehensive approach toward understanding the extractive chemistry of these salts is envisioned, involving systems of varying complexity, from use of simple solvents to new bifunctional host molecules for ion-pair recognition. These extractants will ideally require no adjustment of the waste composition and will release the extracted salt into water, thereby consuming no additional chemicals and producing no additional waste volume. The overall goal of this research is to provide a scientific foundation upon which the feasibility of new liquid-liquid extraction chemistry applicable to the bulk reduction of the volume of tank waste can be evaluated.

Moyer, Bruce A.; Marchand, Alan P.

2000-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Interactions between trace metals, sodium and sorbents in combustion. Quarterly report No. 3, April 1, 1995--June 30, 1995  

SciTech Connect (OSTI)

The proposed research is directed at an understanding of how to exploit interactions between sodium, toxic metals and sorbents, in order to optimize sorbents injection procedures, which can be used to capture and transform these metals into environmentally benign forms. The research will use a 17kW downflow, laboratory combustor, to yield data that can be interpreted in terms of fundamental kinetic mechanisms. Metals to be considered are lead, cadmium, and arsenic. Sorbents will be kaolinite, bauxite, and limestone. The role of sulfur will also be determined.

Wendt, J.O.L.

1995-09-06T23:59:59.000Z

122

CX-008727: Categorical Exclusion Determination | Department of Energy  

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

7: Categorical Exclusion Determination 7: Categorical Exclusion Determination CX-008727: Categorical Exclusion Determination Materials and Fuel Complex - Sodium Processing Facility Tank System Resource Conservation and Recovery Act Closure CX(s) Applied: B6.1 Date: 06/27/2012 Location(s): Idaho Offices(s): Idaho Operations Office The Sodium Process Facility tank systems and associated piping and components will be closed in compliance with the Hazardous Waste Management Act/Resource Conservation and Recovery Act (HWMA/RCRA) SPF/SSS Permit. The clean-closure action levels will be achieved by removal and/or decontaminating or treating waste residues in the SPF tanks systems and the SSS piping/components. Microsoft Word - ICP CX determinaton.doc More Documents & Publications CX-000681: Categorical Exclusion Determination

123

U.S. Department of Energy Categorical Exclusion Determination Form  

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

Dissolution of Thorium Metal with Evaluation of Gas Generation and Evaluation for the Neutralization of Sodium Reactor Experiment (S Dissolution of Thorium Metal with Evaluation of Gas Generation and Evaluation for the Neutralization of Sodium Reactor Experiment (S Savannah River Site Aiken/Aiken/South Carolina SRNL will determine through literature search and laboratory experimentation the flowsheet parameters necessary to safely and effectively dissolve, process, and neutralize the Sodium Reactor Experiment (SRE) used nuclear fuel (UNF) by blending with High Aluminum/Low Uranium (HA/LU) UNF in H-Canyon. The flowsheet will include the number of SRE bundles that can safely be charged to the dissolver without exceeding hydrogen Lower Flammability Limit (LFL). B3.6 - Small-scale research and development, laboratory operations, and pilot projects Andrew R. Grainger

124

U.S. Department of Energy Categorical Exclusion Determination Form  

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

Dissolution Thorium Metal with Evaluation of Gas Generation and Evaluation for the Neutralization of Sodium Reactor Experiment (SR Dissolution Thorium Metal with Evaluation of Gas Generation and Evaluation for the Neutralization of Sodium Reactor Experiment (SR Savannah River Site Aiken/Aiken/South Carolina SRNL will determine through literature search and laboratory experimentation the flowsheet parameters necessary to safely and effectively dissolve, process, and neutralize the Sodium Reactor Experiment (SRE) used nuclear fuel (UNF) by blending with High Aluminum/Low Uranium (HA/LU) UNF in H-Canyon. The flowsheet will include the number of SRE bundles that can safely be charged to the dissolver without exceeding hydrogen Lower Flammability Limit (LFL). B3.6 - Small-scale research and development, laboratory operations, and pilot projects Andrew R. Grainger

125

U.S. Department of Energy Categorical Exclusion Determination Form  

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

Dissolution Thorium Metal with Evaluation of Gas Generation and Evaluation for the Neutralization of Sodium Reactor Experiment (SR Dissolution Thorium Metal with Evaluation of Gas Generation and Evaluation for the Neutralization of Sodium Reactor Experiment (SR Savannah River Site Aiken/Aiken/South Carolina SRNL will determine through literature search and laboratory experimentation the flowsheet parameters necessary to safely and effectively dissolve, process, and neutralize the Sodium Reactor Experiment (SRE) used nuclear fuel (UNF) by blending with High Aluminum/Low Uranium (HA/LU) UNF in H-Canyon. The flowsheet will include the number of SRE bundles that can safely be charged to the dissolver without exceeding the hydrogen Lower Flammability Limit (LFL). Rev. 1 extended the activity end date to 9/30/2016. Rev. 2 added C-102 to the Activity Location.

126

Dynamic stability experiments in sodium-heated steam generators. [LMFBR  

SciTech Connect (OSTI)

Seventy-two dynamic stability tests were performed in the sodium-heated boiling-water test facility at Argonne National Laboratory. A full-scale LMFBR steam generator tube was employed as the test section operating over the water parameter ranges of 6.9 to 15.9 MPa pressure and 170 to 800 kg/m/sup 2/.s mass flux. The stability thresholds from the test compared well to the predictions of a modified version of a correlation equation recently published by other investigators. Typical experimental data and the modified correlation equation are presented.

France, D.M.; Roy, R.; Carlson, R.D.; Chiang, T.

1984-01-01T23:59:59.000Z

127

Effects of the mycotoxin penicillic acid on electrogenic sodium transport  

E-Print Network [OSTI]

. Maximal 1nh1- bition of sodium transport (89. 7%) by PA was achieved after 40 minutes reaction time. The addition of d1thiothreitol to the test med1a prevented short-c1rc1ut current inhibition 1ndicating that the mode of PA action on sod1um flux may..., and 45 minutes . 47 15 C-PA binding to 1ntact toad urigry bladder with and without addit1on of DTT to the C-PA before bladder app1 i cati on. . . 48 Relationship of radiotoxin binding to intact bladder with respect to inhibition of the sod1um pump...

Wilczynski, Teresa Anne

2012-06-07T23:59:59.000Z

128

United States, France and Japan Increase Cooperation on Sodium-Cooled Fast  

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

United States, France and Japan Increase Cooperation on United States, France and Japan Increase Cooperation on Sodium-Cooled Fast Reactor Prototypes United States, France and Japan Increase Cooperation on Sodium-Cooled Fast Reactor Prototypes February 1, 2008 - 11:13am Addthis WASHINGTON, DC -The U.S Department of Energy (DOE), the French Atomic Energy Commission (CEA) and Japan Atomic Energy Agency (JAEA) today expanded cooperation to coordinate Sodium-Cooled Fast Reactor Prototype development through a Memorandum of Understanding (MOU) signed by DOE Assistant Secretary for Nuclear Energy Dennis R. Spurgeon, CEA Chairman Alain Bugat and JAEA President Toshio Okazaki. The MOU establishes a collaborative framework with the ultimate goal of deploying sodium-cooled fast reactor prototypes. A sodium-cooled fast reactor uses liquid sodium

129

Crystallization of Sodium Phosphate Dodecahydrate and Re-Crystallization to Natrophosphate in Simulated Hanford Nuclear Waste  

SciTech Connect (OSTI)

The nuclear waste at the Hanford site near Richland, WA, has large concentrations of phosphate in the form of the phosphate ion, sodium phosphate dodecahydrate (Na3PO4.12H2O.(1/4)NaOH) and natrophosphate (Na7F(PO4)3.19H2O). Sodium phosphate dodecahydrate can form a gel and natrophosphate can crystallize large particles, complicating the processing of slurries of both salts. The gel is regarded as more problematic, so natrophosphate has historically been crystallized to prevent phosphate gelling. This study determined that natrophosphate crystals can grow to large size in short time periods (a few weeks), time periods relevant to short process shutdowns. Solutions of NaOH and NaAl(OH)4 were blended at different ratios with stock solutions containing NaOH, NaF, and Na3PO4 at 50 C. The mixtures were allowed to cool to 22 C, and the crystal growth was monitored by Polarized Light Microscopy (PLM) for 17 days. Four of the six blends investigated gelled rapidly due to Na3PO4.12H2O.(1/4)NaOH precipitation. The gel slowly dissipated over time as the solids recrystallized into natrophosphate. In one case, the natrophosphate reached sizes of greater than 1000 microns in diameter in just 4 days. This rapid gelling and crystallization kinetics is important to engineers trying to manage nuclear wastes high in phosphates. Hanford tank farm engineers are developing sampling plans to support temperature and process control strategies for preventing the formation of solid phosphates. They are also developing methods of suspending large natrophosphate crystals.

Reynolds, J. G.

2014-12-22T23:59:59.000Z

130

E-Print Network 3.0 - aqueous sodium chloride Sample Search Results  

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

cholate... by the addition of sodium chloride or ammonium sulfate salt and then resuspension of the SWNTs... peroxidase (HRP) on single-walled carbon nanotubes (SWNTs) using...

131

E-Print Network 3.0 - aqueous sodium sulfate Sample Search Results  

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

Summary: by the addition of sodium chloride or ammonium sulfate salt and then resuspension of the SWNTs... peroxidase (HRP) on single-walled carbon nanotubes (SWNTs) using...

132

LOW FLAMMABILITY FOAM-LIKE MATERIALS BASED ON EPOXY, TANNIC ACID, SODIUM MONTMORILLONITE CLAY.  

E-Print Network [OSTI]

??Aerogels based on sodium montmorillonite clay, epoxy polymer, and tannic acid as a flame retardant additive were fabricated through a simple environmentally-friendly freeze drying process (more)

Lang, Xiaolong

2014-01-01T23:59:59.000Z

133

ELECTROCHEMICAL RESEARCH IN CHEMICAL HYDROGEN STORAGE MATERIALS: SODIUM BOROHYDRIDE AND ORGANOTIN HYDRIDES.  

E-Print Network [OSTI]

??Chemical storage of hydrogen involves release of hydrogen in a controlled manner from materials in which the hydrogen is covalently bound. Sodium borohydride and aminoborane (more)

McLafferty, Jason

2009-01-01T23:59:59.000Z

134

Low Temperature Sodium-Sulfur Grid Storage and EV Battery - Energy...  

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

and a conductive polymer, while the solid electrolyte - based on cross-linked polyethylene oxide - forms a stable but ion-conducting barrier separating the liquid sodium...

135

A study of phase transitions in sodium stearate by means of nuclear magnetic resonance.  

E-Print Network [OSTI]

??The mesomorphic phase transitions of sodium stearate occurring between 23C. and 200C. were investigated by means of the nuclear magnetic resonance of the hydrogen nuclei (more)

Grant, Rowland Frederick

2012-01-01T23:59:59.000Z

136

Coherent population trapping on the sodium D1 line in high magnetic fields  

Science Journals Connector (OSTI)

We consider the coherent-population-trapping (CPT) phenomenon in a sodium atomic vapor. The experiment leading to the first observation of CPT is revisited with an improved...

Hller, R; Renzoni, F; Windholz, L; Xu, J H

1997-01-01T23:59:59.000Z

137

E-Print Network 3.0 - affecting sodium hypochlorite Sample Search...  

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

Workshop Summary: equipment, vehicles Sodium hypochlorite (bleach) 200-500 ppm Nets, boots, clothing. Surfaces must be clean... hypochlorite solution.Note: Bleach is 5.25%...

138

E-Print Network 3.0 - alkaline sodium borohydride Sample Search...  

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

Aardahl, PNNL) The most critical hurdle for the use of sodium ... Source: DOE Office of Energy Efficiency and Renewable Energy, Hydrogen, Fuel Cells and Infrastructure...

139

E-Print Network 3.0 - aged sodium borophosphate Sample Search...  

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

is a pool-type, sodium- cooled fast reactor that uses a large core of depleted uranium and a "sparkplug Source: Los Alamos National Laboratory, Theoretical Division,...

140

E-Print Network 3.0 - aluminum sodium chloride Sample Search...  

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

agents Water Acetyl chloride, alkaline and alkaline... hypochlorite, all oxidizing agents Carbon tetrachloride Sodium ... Source: Hall, Sharon J. - School of Life Sciences, Arizona...

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

TRUEX partitioning studies applied to ICPP sodium-bearing waste  

SciTech Connect (OSTI)

The Idaho Chemical Processing Plant (ICPP), located in southeast Idaho at the USDOE Idaho National Engineering Laboratory, formerly reprocessed highly enriched spent nuclear fuel to recover fissionable uranium. The HLW raffinates from the combined PUREX/REDOX type uranium recovery process were converted to solid oxides (calcine) in a high temperature fluidized bed. Liquid effluents from the calcination process were combined with liquid sodium bearing waste (SBW) generated primarily in conjunction with decontamination activities. Due to the high sodium content in the SBW, this secondary waste stream is not directly amenable to solidification via calcination. Currently, approximately 1.5 millon gallons of liquid SBW are stored at the ICPP in large tanks. Several treatment options for the SBW are currently being considered, including the TRansUranic EXtraction (TRUEX) process developed by Horwitz and co-workers at Argonne National Laboratory (ANL), in preparation for the final disposition of SBW. Herein described are experimental results of radionuclide tracer studies with simulated SBW using the TRUEX process solvent.

Herbst, R.S.; Brewer, K.N.; Law, J.D.; Tranter, T.J.; Todd, T.A.

1994-05-01T23:59:59.000Z

142

Preliminary engineering design of sodium-cooled CANDLE core  

Science Journals Connector (OSTI)

The CANDLE burning process is characterized by the autonomous shifting of burning region with constant reactivity and constant spacial power distribution. Evaluations of such critical burning process by using widely used neutron diffusion and burning codes under some realistic engineering constraints are valuable to confirm the technical feasibility of the CANDLE concept and to put the idea into concrete core design. In the first part of this paper it is discussed that whether the sustainable and stable CANDLE burning process can be reproduced even by using conventional core analysis tools such as SLAROM and CITATION-FBR. As a result it is certainly possible to demonstrate it if the proper core configuration and initial fuel composition required as CANDLE core are applied to the analysis. In the latter part an example of a concrete image of sodium cooled metal fuel 2000MWt rating CANDLE core has been presented by assuming an emerging inevitable technology of recladding. The core satisfies engineering design criteria including cladding temperature pressure drop linear heat rate and cumulative damage fraction (CDF) of cladding fast neutron fluence and sodium void reactivity which are defined in the Japanese FBR design project. It can be concluded that it is feasible to design CADLE core by using conventional codes while satisfying some realistic engineering design constraints assuming that recladding at certain time interval is technically feasible.

2012-01-01T23:59:59.000Z

143

CX-002879: Categorical Exclusion Determination | Department of Energy  

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

879: Categorical Exclusion Determination 879: Categorical Exclusion Determination CX-002879: Categorical Exclusion Determination Em-31 Phosphate Management CX(s) Applied: B3.6 Date: 06/09/2010 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office This task will investigate the precipitation/crystallization of phosphate from solution as sodium salts. Two general approaches will be considered: 1) precipitation/crystallization by controlled lowering of the temperature of super-saturated solutions and 2) precipitation as double salts, such as the sodium fluorophosphate double salt, Na7F(PO4)2-19H2O. In both cases, evaporation may be considered as a means to increase the yield of phosphate precipitation. Simplified solutions will be produced by dissolving various

144

CX-000681: Categorical Exclusion Determination | Department of Energy  

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

681: Categorical Exclusion Determination 681: Categorical Exclusion Determination CX-000681: Categorical Exclusion Determination Materials and Fuels Complex-Experimental Breeder Reactor-II Sodium Removal/Resource Conservation and Recovery Act Closure Activities CX(s) Applied: B6.1 Date: 01/20/2009 Location(s): Idaho Office(s): Idaho Operations Office, Nuclear Energy The proposed action will remove the sodium from the Experimental Breeder Reactor (EBR)-II piping system and tanks to achieve clean-closure for eventual decommissioning, deactivation and demolition (DD&D). The clean-closure will be completed in compliance with the EBR-II Hazardous Waste Management Act/Resource Conservation and Recovery Act (HWMA/RCRA) Storage and Treatment Permit PER-120. EBR-II is located at the Materials and Fuels Complex at the Idaho National Laboratory. The EBR-II DD&D actions

145

CX-000156: Categorical Exclusion Determination | Department of Energy  

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

156: Categorical Exclusion Determination 156: Categorical Exclusion Determination CX-000156: Categorical Exclusion Determination Huber Heights' Replacement of High-Pressure Sodium Outdoor Fixtures With Efficient Compact Fluorescent Fixtures CX(s) Applied: B2.5, B5.1, B1.3 Date: 01/14/2010 Location(s): Huber Heights, Ohio Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant Program. The current outdoor parking lot and building light fixtures are high-pressure sodium fixtures. This project will replace/retrofit the existing fixtures to a more efficient compact fluorescent fixture. LED (light-emitting diode) fixtures have been researched; however, the amount of light emitted does not meet needs in certain cases. If LED fixtures can be utilized in some applications, that type of fixture will be installed.

146

Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream  

DOE Patents [OSTI]

The present invention is a rapid method of determining the concentration of the major components in a chemical stream. The present invention is also a simple, low cost, device of determining the in-situ concentration of the major components in a chemical stream. In particular, the present invention provides a useful method for simultaneously determining the concentrations of sodium hydroxide, sodium sulfide and sodium carbonate in aqueous kraft pulping liquors through use of an attenuated total reflectance (ATR) tunnel flow cell or optical probe capable of producing a ultraviolet absorbency spectrum over a wavelength of 190 to 300 nm. In addition, the present invention eliminates the need for manual sampling and dilution previously required to generate analyzable samples. The inventive method can be used in Kraft pulping operations to control white liquor causticizing efficiency, sulfate reduction efficiency in green liquor, oxidation efficiency for oxidized white liquor and the active and effective alkali charge to kraft pulping operations.

Li, Jian (Marietta, GA); Chai, Xin Sheng (Atlanta, GA); Zhu, Junyoung (Marietta, GA)

2008-06-24T23:59:59.000Z

147

Remedial Action Certification Docket - Sodium Reactor Experiment (SRE)  

Office of Legacy Management (LM)

c~-?i-- c~-?i-- I ,3-l Remedial Action Certification Docket - Sodium Reactor Experiment (SRE) .Complex and the Hot Cave Facility (Bldg. 003), Santa Susana ,Fie!d Laboratory, Chatsworth, California ..:'..~::Yerlette Gatl in, MA-232 I am attaching for entry into the Public Document Room, one copy of the N -23 subject documentat ion. These documents are the backup data for the certification that the facilfties are radiologically acceptable for b- unrestricted use as noted in the certification statement published in the &aney Federal Register. Inasmuch as the certification for unrestricted use is 9/2(/85 being published in the Federal Register, it is prudent that the attached documentation also be available to the public. These documents should be retained In accordance with DOE Order 1324.2--disposal schedule 25.

148

Feasibility Study for Vitrification of Sodium-Bearing Waste  

SciTech Connect (OSTI)

Treatment of sodium-bearing waste (SBW) at the Idaho Nuclear Technology and Engineering Center (INTEC) within the Idaho National Engineering and Environmental Laboratory is mandated under a Settlement Agreement between the Department of Energy and the State of Idaho. One of the requirements of the Settlement Agreement is the complete calcination (i.e., treatment) of all SBW by December 31, 2012. One of the proposed options for treatment of SBW is vitrification. This study will examine the viability of SBW vitrification. This study describes the process and facilities to treat the SBW, from beginning waste input from INTEC Tank Farm to the final waste forms. Schedules and cost estimates for construction and operation of a Vitrification Facility are included. The study includes a facility layout with drawings, process description and flow diagrams, and preliminary equipment requirements and layouts.

J. J. Quigley; B. D. Raivo; S. O. Bates; S. M. Berry; D. N. Nishioka; P. J. Bunnell

2000-09-01T23:59:59.000Z

149

Sodium-Bearing Waste Treatment Alternatives Implementation Study  

SciTech Connect (OSTI)

The purpose of this document is to discuss issues related to the implementation of each of the five down-selected INEEL/INTEC radioactive liquid waste (sodium-bearing waste - SBW) treatment alternatives and summarize information in three main areas of concern: process/technical, environmental permitting, and schedule. Major implementation options for each treatment alternative are also identified and briefly discussed. This report may touch upon, but purposely does not address in detail, issues that are programmatic in nature. Examples of these include how the SBW will be classified with respect to the Nuclear Waste Policy Act (NWPA), status of Waste Isolation Pilot Plant (WIPP) permits and waste storage availability, available funding for implementation, stakeholder issues, and State of Idaho Settlement Agreement milestones. It is assumed in this report that the SBW would be classified as a transuranic (TRU) waste suitable for disposal at WIPP, located in New Mexico, after appropriate treatment to meet transportation requirements and waste acceptance criteria (WAC).

Charles M. Barnes; James B. Bosley; Clifford W. Olsen

2004-07-01T23:59:59.000Z

150

Hybrid sodium heat pipe receivers for dish/Stirling systems  

SciTech Connect (OSTI)

The design of a hybrid solar/gas heat pipe receiver for the SBP 9 kW dish/Stirling system using a United Stirling AB V160 Stirling engine and the results of on-sun testing in alternative and parallel mode will be reported. The receiver is designed to transfer a thermal power of 35 kW. The heat pipe operates at around 800 C, working fluid is sodium. Operational options are solar-only, gas augmented and gas-only mode. Also the design of a second generation hybrid heat pipe receiver currently developed under a EU-funded project, based on the experience gained with the first hybrid receiver, will be reported. This receiver is designed for the improved SPB/L. and C.-10 kW dish/Stirling system with the reworked SOLO V161 Stirling engine.

Laing, D.; Reusch, M. [Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V., Stuttgart (Germany). Inst. fuer Technische Thermodynamik

1997-12-31T23:59:59.000Z

151

Screening Evaluation of Sodium Nonatitanate for Strontium and Actinide Removal from Alkaline Salt Solution  

SciTech Connect (OSTI)

This report describes results from screening tests evaluating strontium and actinide removal characteristics of a sodium titanate material developed by Clearfield and coworkers at Texas A and M University and offered commercially by Honeywell. Sodium nonatitanate may exhibit improved actinide removal kinetics and filtration characteristics compared to MST and thus merit testing.

Hobbs, D.T.

2001-02-13T23:59:59.000Z

152

Adsorption of Sodium Dodecyl Sulfate on Functionalized Graphene Measured by Conductometric Titration  

E-Print Network [OSTI]

applications, including graphene-metal oxide nano- composites for Li-ion battery electrodes,4,5 grapheneAdsorption of Sodium Dodecyl Sulfate on Functionalized Graphene Measured by Conductometric States ABSTRACT: We report on the adsorption of sodium dodecyl sulfate (SDS) onto functionalized graphene

Aksay, Ilhan A.

153

A High Temperature Electrochemical Energy Storage System Based on Sodium Beta-Alumina Solid Electrolyte (Base)  

SciTech Connect (OSTI)

This report summarizes the work done during the period September 1, 2005 and March 31, 2008. Work was conducted in the following areas: (1) Fabrication of sodium beta{double_prime} alumina solid electrolyte (BASE) using a vapor phase process. (2) Mechanistic studies on the conversion of {alpha}-alumina + zirconia into beta{double_prime}-alumina + zirconia by the vapor phase process. (3) Characterization of BASE by X-ray diffraction, SEM, and conductivity measurements. (4) Design, construction and electrochemical testing of a symmetric cell containing BASE as the electrolyte and NaCl + ZnCl{sub 2} as the electrodes. (5) Design, construction, and electrochemical evaluation of Na/BASE/ZnCl{sub 2} electrochemical cells. (6) Stability studies in ZnCl{sub 2}, SnCl{sub 2}, and SnI{sub 4} (7) Design, assembly and testing of planar stacks. (8) Investigation of the effect of porous surface layers on BASE on cell resistance. The conventional process for the fabrication of sodium ion conducting beta{double_prime}-alumina involves calcination of {alpha}-alumina + Na{sub 2}CO{sub 3} + LiNO{sub 3} at 1250 C, followed by sintering powder compacts in sealed containers (platinum or MgO) at {approx}1600 C. The novel vapor phase process involves first sintering a mixture of {alpha}-alumina + yttria-stabilized zirconia (YSZ) into a dense ceramic followed by exposure to soda vapor at {approx}1450 C to convert {alpha}-alumina into beta{double_prime}-alumina. The vapor phase process leads to a high strength BASE, which is also resistant to moisture attack, unlike BASE made by the conventional process. The PI is the lead inventor of the process. Discs and tubes of BASE were fabricated in the present work. In the conventional process, sintering of BASE is accomplished by a transient liquid phase mechanism wherein the liquid phase contains NaAlO{sub 2}. Some NaAlO{sub 2} continues to remain at grain boundaries; and is the root cause of its water sensitivity. In the vapor phase process, NaAlO{sub 2} is never formed. Conversion occurs by a coupled transport of Na{sup +} through BASE formed and of O{sup 2-} through YSZ to the reaction front. Transport to the reaction front is described in terms of a chemical diffusion coefficient of Na{sub 2}O. The conversion kinetics as a function of microstructure is under investigation. The mechanism of conversion is described in this report. A number of discs and tubes of BASE have been fabricated by the vapor phase process. The material was investigated by X-ray diffraction (XRD), optical microscopy and scanning electron microscopy (SEM), before and after conversion. Conductivity (which is almost exclusively due to sodium ion transport at the temperatures of interest) was measured. Conductivity was measured using sodium-sodium tests as well as by impedance spectroscopy. Various types of both planar and tubular electrochemical cells were assembled and tested. In some cases the objective was to determine if there was any interaction between the salt and BASE. The interaction of interest was mainly ion exchange (possible replacement of sodium ion by the salt cation). It was noted that Zn{sup 2+} did not replace Na+ over the conditions of interest. For this reason much of the work was conducted with ZnCl{sub 2} as the cathode salt. In the case of Sn-based, Sn{sup 2+} did ion exchange, but Sn{sup 4+} did not. This suggests that Sn{sup 4+} salts are viable candidates. These results and implications are discussed in the report. Cells made with Na as the anode and ZnCl{sub 2} as the cathode were successfully charged/discharged numerous times. The key advantages of the batteries under investigation here over the Na-S batteries are: (1) Steel wool can be used in the cathode compartment unlike Na-S batteries which require expensive graphite. (2) Planar cells can be constructed in addition to tubular, allowing for greater design flexibility and integration with other devices such as planar SOFC. (3) Comparable or higher open circuit voltage (OCV) than the Na-S battery. (4) Wider operating temperature range and higher temper

Anil Virkar

2008-03-31T23:59:59.000Z

154

Ion Recognition Approach to Volume Reduction of Alkaline Tank Waste by Separation and Recycle of Sodium Hydroxide and Sodium Nitrate  

SciTech Connect (OSTI)

The objective of this research is to explore new liquid-liquid extraction approaches to the selective separation of major sodium salts from alkaline high-level wastes stored in underground tanks at Hanford, Savannah River, and Oak Ridge sites. Disposal of high level waste is horrendously expensive, in large part because the actual radioactive matter in the tanks has been diluted over 1000-fold by ordinary inorganic chemicals. Since the residual bulk chemicals must still undergo expensive treatment and disposal after most of the hazardous radionuclides have been removed, large cost savings will result from processes that reduce the overall waste volume. It is proposed that major cost savings can be expected if sodium hydroxide needed for sludge washing can be obtained from the waste itself, thus avoiding the addition of yet another bulk chemical to the waste and still further increase of the waste volume and disposal cost. Secondary priority is given to separating potassium an d abundant anions, including nitrate, nitrite, aluminate, and carbonate. Salts of these ions represent possible additional value for recycle, alternative disposal, or even use as commodity chemicals. A comprehensive approach toward understanding the extractive chemistry of these salts is envisioned, involving systems of varying complexity, from use of simple solvents to new bifunctional host molecules for ion-pair recognition. These extractants will ideally require no adjustment of the waste composition and will release the extracted salt into water, thereby consuming no additional chemicals and producing no additional waste volume. The overall goal of this research is to provide a scientific foundation upon which the feasibility of new liquid-liquid extraction chemistry applicable to the bulk reduction of the volume of tank waste can be evaluated.

Moyer, Bruce A.; Marchand, Alan P.; Bryan, Jeffrey C.; Bonnesen, Peter V.

1999-06-01T23:59:59.000Z

155

Mercury's sodium exosphere: Magnetospheric ion recycling Service d'Aeronomie du CNRS/IPSL, Verrie`res-Le-Buisson, France  

E-Print Network [OSTI]

Mercury's sodium exosphere: Magnetospheric ion recycling F. Leblanc Service d'Ae´ronomie du CNRS December 2003. [1] A three-dimensional Monte Carlo model of Mercury's neutral sodium exosphere was used in the surface concentration of sodium along Mercury's motion around the Sun [Leblanc and Johnson, 2003]. Four

Johnson, Robert E.

156

Analysis and methodology for measuring oxygen concentration in liquid sodium with a plugging meter  

SciTech Connect (OSTI)

Oxygen concentration in liquid sodium is a critical measurement in assessing the potential for corrosion damage in sodium-cooled fast reactors (SFRs). There has been little recent work on sodium reactors and oxygen detection. Thus, the technical expertise dealing with oxygen measurements within sodium is no longer readily available in the U.S. Two methods of oxygen detection that have been investigated are the plugging meter and the galvanic cell. One of the overall goals of the Univ. of Wisconsin's sodium research program is to develop an affordable, reliable galvanic cell oxygen sensor. Accordingly, attention must first be dedicated to a well-known standard known as a plugging meter. Therefore, a sodium loop has been constructed on campus in effort to develop the plugging meter technique and gain experience working with liquid metal. The loop contains both a galvanic cell test section and a plugging meter test section. Consistent plugging results have been achieved below 20 [wppm], and a detailed process for achieving effective plugging has been developed. This paper will focus both on an accurate methodology to obtain oxygen concentrations from a plugging meter, and on how to easily control the oxygen concentration of sodium in a test loop. Details of the design, materials, manufacturing, and operation will be presented. Data interpretation will also be discussed, since a modern discussion of plugging data interpretation does not currently exist. (authors)

Nollet, B. K.; Hvasta, M.; Anderson, M. [Univ. of Wisconsin-Madison, 1500 Engineering Dr., Madison, WI 53706 (United States)

2012-07-01T23:59:59.000Z

157

Membrane formation by preferential solvation of ions in mixture of water, 3-methylpyridine, and sodium tetraphenylborate  

SciTech Connect (OSTI)

The structure and dynamics of a ternary system composed of deuterium oxide (D{sub 2}O), 3-methylpyridine (3MP), and sodium tetraphenylborate (NaBPh{sub 4}) are investigated by means of small-angle neutron scattering (SANS) and neutron spin echo (NSE) techniques. In the SANS experiments, a structural phase transition is confirmed between a disordered-phase and an ordered-lamellar-phase upon variation of the composition and/or temperature of the mixture. The characteristic lengths of the structures is on the sub-micrometer scale. A dispersion relation of the structure is measured through NSE experiments, which shows that the relaxation rate follows a cubic relation with momentum transfer. This implies that the dynamics of the system are determined predominantly by membrane fluctuations. The present results indicate that 3MP-rich domains are microscopically separated from bulk water in the presence of NaBPh{sub 4}, and that the layers behave as membranes. These results are interpreted that preferential solvation of salt in each solvent induces a microphase separation between the solvents, and the periodic structure of 3MP-rich domains is stabilized by the long-range electrostatic interaction arising from Na{sup +} ions in D{sub 2}O-rich domains.

Sadakane, Koichiro, E-mail: sadakane@fc.ritsumei.ac.jp [Department of Physics, Ritsumeikan University, Noji-Higashi 1-1-1, Kusatsu 525-8577 (Japan)] [Department of Physics, Ritsumeikan University, Noji-Higashi 1-1-1, Kusatsu 525-8577 (Japan); Nagao, Michihiro [NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102 (United States) [NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102 (United States); Center for Exploration of Energy and Matter, Indiana University, Bloomington, Indiana 47408-1398 (United States); Endo, Hitoshi; Seto, Hideki [KENS and CMRC, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba 305-0801 (Japan)] [KENS and CMRC, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba 305-0801 (Japan)

2013-12-21T23:59:59.000Z

158

The corrosion behavior of molybdenum and Hastelloy B in sulfur and sodium polysulfides at 623 K  

SciTech Connect (OSTI)

An experimental study was completed to determine the corrosion behavior of molybdenum and Hastelloy B, a nickel-based alloy with high molybdenum content, in sulfur and sodium polysulfides (Na/sub 2/S/sub 3/,Na/sub 2/S/sub 4/, Na/sub 2/S/sub 5/) at 623 K. In sulfur, molybdenum corrodes very slowly, with a parabolic rate constant of 3.6 x 10/sup -9/ cm s/sup -1/2/. Hastelloy B shows no measurable corrosion after 100h of exposure to sulfur. The corrosion reaction of molybdenum in Na/sub 2/S/sub 3/ is characterized by the formation of a protective film that effectively eliminates further corrosion after the first 100h of exposure. Hastelloy B, however, corrodes rapidly in Na/sub 2/S/sub 3/, with corrosion rates approaching those of pure nickel under the same conditions. After the first 4h of exposure, the kinetics for the corrosion of Hastelloy B in Na/sub 2/S/sub 3/ follows a linear rate law. The scale morphology has multiple spalled layers of NiS/sub 2/, with some crystallites of NiS/sub 2/ appearing on the leading face of the scale and between the individual scale layers. This spalling causes smaller coupons of the Hastelloy B to corrode faster than larger coupons.

Brown, A.P.

1987-08-01T23:59:59.000Z

159

Fiber optic sensors for monitoring sodium circuits and power grid cables  

SciTech Connect (OSTI)

At Kalpakkam, India, a programme on development of Raman Distributed Temperature sensor (RDTS) for Fast Breeder Reactors (FBR) application is undertaken. Leak detection in sodium circuits of FBR is critical for the safety and performance of the reactors. It is demonstrated that RDTS can be usefully employed in monitoring sodium circuits and in tracking the percolating sodium in case of any leak. Aluminum Conductor Steel Reinforced (ACSR) cable is commonly used as overhead power transmission cable in power grid. A second application demonstrates the suitability of using RDTS to monitor this transmission cable for any defect. (authors)

Kasinathan, M.; Sosamma, S.; Pandian, C.; Vijayakumar, V.; Chandramouli, S.; Nashine, B. K.; Rao, C. B.; Murali, N.; Rajan, K. K.; Jayakumar, T. [IGCAR, Kalpakkam (India)

2011-07-01T23:59:59.000Z

160

Sodium-bearing Waste Treatment Technology Evaluation Report  

SciTech Connect (OSTI)

Sodium-bearing waste (SBW) disposition is one of the U.S. Department of Energy (DOE) Idaho Operation Offices (NE-ID) and State of Idahos top priorities at the Idaho National Engineering and Environmental Laboratory (INEEL). The INEEL has been working over the past several years to identify a treatment technology that meets NE-ID and regulatory treatment requirements, including consideration of stakeholder input. Many studies, including the High-Level Waste and Facilities Disposition Environmental Impact Statement (EIS), have resulted in the identification of five treatment alternatives that form a short list of perhaps the most appropriate technologies for the DOE to select from. The alternatives are (a) calcination with maximum achievable control technology (MACT) upgrade, (b) steam reforming, (c) cesium ion exchange (CsIX) with immobilization, (d) direct evaporation, and (e) vitrification. Each alternative has undergone some degree of applied technical development and preliminary process design over the past four years. This report presents a summary of the applied technology and process design activities performed through February 2004. The SBW issue and the five alternatives are described in Sections 2 and 3, respectively. Details of preliminary process design activities for three of the alternatives (steam reforming, CsIX, and direct evaporation) are presented in three appendices. A recent feasibility study provides the details for calcination. There have been no recent activities performed with regard to vitrification; that section summarizes and references previous work.

Charles M. Barnes; Arlin L. Olson; Dean D. Taylor

2004-05-01T23:59:59.000Z

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161

Structure of rhenium-containing sodium borosilicate glass  

SciTech Connect (OSTI)

A series of sodium borosilicate glasses were synthesized with increasing fractions of KReO4 or Re2O7, to 10000 ppm (1 mass%) target Re in glass, to assess the effects of large concentrations of rhenium on glass structure and to estimate the solubility of technetium, a radioactive component in typical low active waste nuclear waste glasses. Magic angle spinning nuclear magnetic resonance (MAS-NMR), Fourier transform infrared (FTIR) spectroscopy, and Raman spectroscopy were performed to characterize the glasses as a function of Re source additions. In general, silicon was found coordinated in a mixture of Q2 and Q3 structural units, while Al was 4-coordinated and B was largely 3-coordinate and partially 4-coordinated. The rhenium source did not appear to have significant effects on the glass structure. Thus, at the up to the concentrations that remain in dissolved in glass, ~3000 ppm Re by mass maximum. , the Re appeared to be neither a glass-former nor a strong glass modifier., Rhenium likely exists in isolated ReO4- anions in the interstices of the glass network, as evidenced by the polarized Raman spectrum of the Re glass in the absence of sulfate. Analogous to SO42- in similar glasses, ReO4- is likely a network modifier and forms alkali salt phases on the surface and in the bulk glass above solubility.

Goel, Ashutosh; McCloy, John S.; Windisch, Charles F.; Riley, Brian J.; Schweiger, Michael J.; Rodriguez, Carmen P.; Ferreira, Jose M.

2013-03-01T23:59:59.000Z

162

Small-angle neutron scattering study of poly(methyl methacrylate-block-sodium acrylate-block-methyl methacrylate) and poly(sodium acrylate-block-methyl methacrylate-block-sodium acrylate) triblock copolymers in aqueous solutions  

Science Journals Connector (OSTI)

?Small-angle neutron scattering experiments were made on poly(methyl methacrylate-block-sodium acrylate-block-methyl methacrylate) [p(MMA-b-NaA-b-MMA)] and p(NaA-b-MMA-b...-NaA) solutions by varying the compositi...

Szabolcs Vass; Kristina Haimer; Gerhard Meier

2002-03-01T23:59:59.000Z

163

Process Flow Chart for Immobilizing of Radioactive High Concentration Sodium Hydroxide Product from the Sodium Processing Facility at the BN-350 Nuclear power plant in Aktau, Kazakhstan  

SciTech Connect (OSTI)

This paper describes the results of a joint research investigations carried out by the group of Kazakhstan, British and American specialists in development of a new material for immobilization of radioactive 35% sodium hydroxide solutions from the sodium coolant processing facility of the BN-350 nuclear power plant. The resulting solid matrix product, termed geo-cement stone, is capable of isolating long lived radionuclides from the environment. The physico-mechanical properties of geo-cement stone have been investigated and the flow chart for its production verified in a full scale experiments. (author)

Burkitbayev, M.; Omarova, K.; Tolebayev, T. [Ai-Farabi Kazakh National University, Chemical Faculty, Republic of Kazakhstan (Kazakhstan); Galkin, A. [KATEP Ltd., Republic of Kazakhstan (Kazakhstan); Bachilova, N. [NIISTROMPROEKT Ltd., Republic of Kazakhstan (Kazakhstan); Blynskiy, A. [Nuclear Technology Safety Centre, Republic of Kazakhstan (Kazakhstan); Maev, V. [MAEK-Kazatomprom Ltd., Republic of Kazakhstan (Kazakhstan); Wells, D. [NUKEM Limited- a member of the Freyssinet Group, Winfrith Technology Centre, Dorchester, Dorset (United Kingdom); Herrick, A. [NUKEM Limited- a member of the Freyssinet Group, Caithness (United Kingdom); Michelbacher, J. [Idaho National Laboratory, Idaho Falls (United States)

2008-07-01T23:59:59.000Z

164

Sodium/Phosphorus-Sulfur Cells I. Cell Performance Paul L. Ridgway,  

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

Sodium/Phosphorus-Sulfur Cells Sodium/Phosphorus-Sulfur Cells I. Cell Performance Paul L. Ridgway, Frank R. McLarnon, and Elton J. Cairns* Energy and Environment Division, Lawrence Berkeley National Laboratory, and Department of Chemical Engineering, University of California, Berkeley, California 94720, USA ABSTRACT Sodium/°-alumina/phosphorus-sulfur cells utilizing P/S ratios of 0, 0.143, 0.332, and 1.17 at temperatures from 350 to 500°C were studied by measurement of the equilibrium cell voltages at open circuit, and the steady-state cell voltages at current densities up to 70 mA/cm2. States of charge, represented by sodium atom fraction in the P-S electrode, ranged from 0 to 0.4. Open-circuit voltages up to 2.65 V were measured. Theoretical specific energies up to 825 Wh/kg were cal-

165

Thermal-hydraulic analysis of innovative fuel configurations for the sodium fast reactor  

E-Print Network [OSTI]

The sodium fast reactor (SFR) is currently being reconsidered as an instrument for actinide management throughout the world, thanks in part to international programs such as the Generation-IV and especially the Global ...

Memmott, Matthew J

2009-01-01T23:59:59.000Z

166

The role of sodium bicarbonate in the nucleation of noctilucent clouds  

E-Print Network [OSTI]

for the sublimation of H2O to bulk ice. A 1-dimensional model of sodium chemistry was then employed to show and particles; cloud physics and chemistry; middle atmosphere ± composition and chemistry) Introduction

Boyer, Edmond

167

SYNTHESIS OF HYDROCARBON STANDARDS Tetrahydrofuran (THF) was distilled from sodium/benzophenone under argon  

E-Print Network [OSTI]

SYNTHESIS OF HYDROCARBON STANDARDS Tetrahydrofuran (THF) was distilled from sodium Synthesis (Pelham, NH, USA). Other phosphonium salts were synthesized as follows. A solution, USA). Synthesis of Straight-chain Z-alkenes. Aldehydes needed for Wittig reactions that were

Hanks, Lawrence M.

168

Materials issues in high temperature ultrasonic transducers for under-sodium viewing  

SciTech Connect (OSTI)

Liquid sodium is used as the coolant in some fast spectrum nuclear reactors. This material is optically opaque. To facilitate operations and maintenance activities, an ultrasonic under-sodium viewing system has been developed. In the USA, the technology was successfully demonstrated in the 1970s and, over the intervening 30+ years, the capability was lost. This paper reports materials challenges encountered in developing both single-element and linear phased-array 2-MHz transducers that must operate at temperatures up to 260 deg. C. The critical issues are fundamentally material selection: the ability of a transducer to be immersed into liquid sodium and function at 260 deg. C, to achieve wetting and transmission of ultrasound into the sodium, and to be able to be removed and re-used.

Bond, L. J.; Griffin, J. W.; Posakony, G. J.; Harris, R. V.; Baldwin, D. L. [Pacific Northwest National Laboratory, Richland, WA 99354 (United States)

2012-05-17T23:59:59.000Z

169

E-Print Network 3.0 - advanced fast sodium Sample Search Results  

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

in HaleBopp M. E. Brown and A. H. Bouchez Summary: Sodium Velocities and Sources in Hale-Bopp M. E. Brown and A. H. Bouchez Division of Geological... resolved high-resolution...

170

Population strategies to decrease sodium intake : a global cost-effectiveness analysis  

E-Print Network [OSTI]

Excessive sodium consumption is both prevalent and very costly in many countries around the world. Recent research has found that more than 90% of the world's adult population live in countries with mean intakes exceeding ...

Webb, Michael William, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

171

Development of a model to predict flow oscillations in low-flow sodium boiling  

E-Print Network [OSTI]

An experimental and analytical program has been carried out in order to better understand the cause and effect of flow oscillations in boiling sodium systems. These oscillations have been noted in previous experiments with ...

Levin, Alan Edward

1980-01-01T23:59:59.000Z

172

Comparison of Nanocomposites Prepared from Sodium, Zinc, and Lithium Ionomers of Ethylene/Methacrylic Acid Copolymers  

Science Journals Connector (OSTI)

Morphology and mechanical properties of nanocomposites prepared by melt mixing a montmorillonite-based organoclay with lithium, sodium, and zinc ionomers of poly(ethylene-co-methacrylic acid) are presented here. The effect of the type of neutralizing ...

Rhutesh K. Shah; D. R. Paul

2006-03-31T23:59:59.000Z

173

Development of an improved sodium exposure test cell experiment for characterization of AMTEC electrode performance  

E-Print Network [OSTI]

An investigation into sources of inconsistencies in sodium exposure test cell (SETC) measurements, used to characterize AMTEC electrode performance, was conducted. Development of modifications to the SETC setup and operation was also accomplished...

Fiebig, Bradley Nelson

2012-06-07T23:59:59.000Z

174

Development of Novel Nanomaterials for Lithium-Air and Sodium-Air Batteries.  

E-Print Network [OSTI]

??Lithium-air and sodium-air batteries are promising energy storage systems for future smart grids and electric vehicles due to their extremely high theoretical energy densities. However, (more)

Li, Yongliang

2013-01-01T23:59:59.000Z

175

Narrowband sodium lidar for the measurements of mesopause region temperature and wind  

Science Journals Connector (OSTI)

We report here a narrowband high-spectral resolution sodium temperature/wind lidar recently developed at the University of Science and Technology of China (USTC) in Hefei, China...

Li, Tao; Fang, Xin; Liu, Wei; Gu, Sheng-Yang; Dou, Xiankang

2012-01-01T23:59:59.000Z

176

Brain Tolerance in Dogs to Boron Neutron Capture Therapy with Borocaptate Sodium (BSH) or Boronophenylalanine (BPA)  

Science Journals Connector (OSTI)

Research programs investigating the potential use of BNCT for brain tumors have been initiated in Europe and in the U.S. using epithermal neutron beams and either borocaptate sodium (BSH) or boronophenylalanine (

R. Huiskamp; P. R. Gavin; J. A. Coderre; K. H. I. Philipp

1996-01-01T23:59:59.000Z

177

The Safe Use of Sodium Hydride on Scale: The Process Development of a Chloropyrimidine Displacement  

Science Journals Connector (OSTI)

The Safe Use of Sodium Hydride on Scale: The Process Development of a Chloropyrimidine Displacement ... Global Pharmaceutical Commercialization, Merck Manufacturing Division, Rahway, New Jersey, 07065 ... This article is part of the Safety of Chemical Processes 11 special issue. ...

Jamie M. McCabe Dunn; Alicia Duran-Capece; Brendan Meehan; James Ulis; Tetsuo Iwama; Guy Gloor; George Wong; Evan Bekos

2011-09-30T23:59:59.000Z

178

COST-EFFECTIVENESS OF INTRAVENOUS NICARDIPINE VERSUS SODIUM NITROPRUSSIDE FOR POSTOPERATIVE HYPERTENSION AFTER CARDIAC SURGERY.  

E-Print Network [OSTI]

Postoperative hypertension after cardiac surgery is common and associated with substantial morbidity. Both sodium nitroprusside (SNP) and nicardipine (NIC) are effective in its management. SNP is inexpensive, but associated ...

Barnes, Brian Joseph

2010-11-23T23:59:59.000Z

179

Sodium-Copper Exchange on Wyoming Montmorillonite in Chloride, Perchlorate, Nitrate, and Sulfate Solutions  

E-Print Network [OSTI]

Sodium-Copper Exchange on Wyoming Montmorillonite in Chloride, Perchlorate, Nitrate, and Sulfate. The copper exchange capacity (CuEC) and Na-Cu exchange reactions on Wyoming montmo- rillonite were studied

Sparks, Donald L.

180

Pilot scale gasification of spent cooking liquor from sodium sulfite based delignification  

Science Journals Connector (OSTI)

This paper describes a pilot scale high pressure entrained flow gasification experiment with spent cooking liquor from a sodium sulfite based delignification process in the DP-1 black liquor gasifier in Pite, Sweden. Approximately 92 tons of sulfite ...

Erik Furusj; Ragnar Stare; Ingvar Landlv; Patrik Lwnertz

2014-11-17T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Evaporation of water from sodium chloride solutions under controlled climatic conditions  

E-Print Network [OSTI]

EVAPORATION OF WATER FROM SODIUM CELORIDE SOLUTIONS UNDER CONTROLLED CLIMATIC CONDITIONS A Thesis by Jaroy Moore Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE January 1967 Haj or Subject: Soil Physics EVAPORATION OF WATER FROM SODIUM CHLORIDE SOLUTIONS UNDER CONTROLLED CLIMATIC CONDITIONS A Thesis by Jaroy Moore Approved as to style and content by: (Ch+jman of Committee) (Member) (, j. (Head...

Moore, Jaroy

2012-06-07T23:59:59.000Z

182

Evolution of Sodium Technology R and D Actions Supporting French Liquid-Metal Fast Breeder Reactors  

SciTech Connect (OSTI)

This paper describes the evolution of sodium technology research and development in parallel to sodium-cooled fast breeder reactor (FBR) developments in France and provides information concerning operating plants and existing projects. This paper also discusses how supporting research has adapted to the decline in FBR activities since the decommissioning of Superphenix, while capitalizing on knowledge acquired over more than four decades to be passed down to future generations.

Rodriguez, G.; Baque, F.; Astegiano, J.C. [Commissariat a l'Energie Atomique, Cadarache (France)

2005-04-15T23:59:59.000Z

183

Characterization of the liquid sodium spray generated by a pipework hole  

SciTech Connect (OSTI)

Due to its advantageous thermodynamic characteristics at high temperature (550 deg. C), liquid sodium is the main candidate to be the cooling fluid for Generation TV nuclear reactors SFR (Sodium-cooled Fast Reactors). Now, sodium reacts very violently, both with the water and the oxygen of the air. Only few data were known about the liquid sodium behaviour when spread in the environment through micro defects. These are often present in a cooling circuit in welded or sealed joints and more rarely in the pipes. Micro defects, on the other hand, can be also generated in a cooling circuit because of the vibrations always present in a circuit into which a fluid runs. A new set-up, named LISOF, was built for testing high temperature liquid sodium when passing through micro defects and generating sprays or jets. Sprays and jets were generated by means of nozzles embedding sub milli-metric holes the diameter of which was: 0.2 mm, 0.4 mm, 0.5 mm. Tests were performed by pressurizing liquid sodium (550 deg. C) at: 3, 6 and 9 barg. Normal and high speed cinematography were used for the direct observation of the liquid sodium sprays while Phase Doppler Interferometry was used for the measurement of the droplets characteristics and velocity. Tests concerning the behaviour of the high temperature liquid sodium firing in air or in contact with the cement cover applied to a scaled down core catcher simulacrum were also performed. The paper presents the built set-up and the collected results. (authors)

Torsello, G.; Parozzi, F.; Nericcio, L. [RSE - Nuclear and Industrial Plant Safety Team, Power Generation System Dept., via Rubattino 54, 20134 Milano (Italy); Araneo, L.; Cozzi, F. [Politecnico di Milano, Energy Dept., via Lambruschini 4, 20156 Milano (Italy); Carcassi, M.; Mattei, N. [Universita di Pisa-Facolta d'Ingegneria DIMNP-Mechanical, Nuclear and Production Dep., Largo L. Lazzarino 2, 56126 Pisa (Italy)

2012-07-01T23:59:59.000Z

184

Proper use of sodium bisulfite with minimal salt penetration during brine immersion freezing of shrimp  

E-Print Network [OSTI]

PROPER USE OF SODIUM BISULFITE WITH MINIMAL SALT PENETRATION DURING BRINE IMMERSION FREEZING OF SHRIMP A Thesis by SUZANNE RENE BROUSSARD Submitted to the Graduate College of Texas ASM University in partial fulfillment of the reguirement... for the degree of MASTER OF SCIENCE MAY 1988 OC o Z m Z IJ III s Z Major Subject: Food Science and Technology PROPER USE OF SODIUM BISULFITE WITH MINIMAL SALT PENETRATION DURING BRINE IMMERSION FREEZING OF SHRIMP A Thesis by SUZANNE RENE...

Broussard, Suzanne Rene

2012-06-07T23:59:59.000Z

185

The electrochemical analysis of sodium dodecylbenzenesulfonate in solutions containing oilfield impurities  

E-Print Network [OSTI]

THE ELECTROCHEMICAL ANALYSIS OF SODIUM DODECYLBENZENESULFONATE IN SOLUTIONS CONTAINING OILFIELD IMPURITIES A Thesis by MICHAEL CARL BECKER Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1979 Major Subject: Chemical Engineering THE ELECTROCHEMICAL ANALYSIS OF SODIUM DODECYLBENZENESULFONATE IN SOLUTIONS CONTAINING OILFIELD IMPURITIES A Thesis by MICHAEL CARL BECKER Approved as to style...

Becker, Michael Carl

2012-06-07T23:59:59.000Z

186

Sodium and potassium levels in the serum of acutely irradiated and non-irradiated rats  

E-Print Network [OSTI]

SODIUM AND POTASSIUM LEVELS IN THE SERUM OF ACUTELY IRRADIATED AND NON-IRRADIATED RATS A Thesis By DAVID PRESTON SHEPHERD Submitted to the Graduate College of the Texas ARM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 1967 Major Subject: Zoology SODIUM AND POTASSIUM LEVELS IN THE SERUM OF ACUTELY IRRADIATED AND NON-IRRADIATED RATS A Thesis By DAVID PRESTON SHEPHERD Approved as to style and content by: (Chairman of Committee) (Head...

Shepherd, David Preston

2012-06-07T23:59:59.000Z

187

A Novel Low-Cost Sodium-Zinc Chloride Battery  

SciTech Connect (OSTI)

The sodium-metal halide (ZEBRA) battery has been considered as one of the most attractive energy storage systems for stationary and transportation applications. Even though Na-NiCl2 battery has been widely investigated, there is still a need to develop a more economical system to make this technology more attractive for commercialization. In the present work, a novel low-cost Na-ZnCl2 battery with a thin planar ??-Al2O3 solid electrolyte (BASE) was proposed, and its electrochemical reactions and battery performance were investigated. Compared to the Na-NiCl2 chemistry, the ZnCl2-based chemistry was more complicated, in which multiple electrochemical reactions including liquid-phase formation occurred at temperatures above 253C. During the first stage of charge, NaCl reacted with Zn to form Na in the anode and Na2ZnCl4 in the cathode. Once all the residual NaCl was consumed, further charging led to the formation of a NaCl-ZnCl2 liquid phase. At the end of charge, the liquid phase reacted with Zn to produce solid ZnCl2. To identify the effects of liquid-phase formation on electrochemical performance, button cells were assembled and tested at 280C and 240C. At 280C where the liquid phase formed during cycling, cells revealed quite stable cyclability. On the other hand, more rapid increase in polarization was observed at 240C where only solid-state electrochemical reactions occurred. SEM analysis indicated that the stable performance at 280C was due to the suppressed growth of Zn and NaCl particles, which were generated from the liquid phase during discharge of each cycle.

Lu, Xiaochuan; Li, Guosheng; Kim, Jin Yong; Lemmon, John P.; Sprenkle, Vincent L.; Yang, Zhenguo

2013-02-28T23:59:59.000Z

188

Ion Recognition Approach to Volume Reduction of Alkaline Tank Waste by Separation of Sodium Salts  

SciTech Connect (OSTI)

The purpose of this research involving collaboration between Oak Ridge National Laboratory (ORNL) and Pacific Northwest National Laboratory (PNNL) is to explore new approaches to the separation of sodium hydroxide, sodium nitrate, and other sodium salts from high-level alkaline tank waste. The principal potential benefit is a major reduction in disposed waste volume, obviating the building of expensive new waste tanks and reducing the costs of vitrification. Principles of ion recognition are being researched toward discovery of liquid-liquid extraction systems that selectively separate sodium hydroxide and sodium nitrate from other waste components. The successful concept of pseudo hydroxide extraction using fluorinated alcohols and phenols is being developed at ORNL and PNNL toward a greater understanding of the controlling equilibria, role of solvation, and of synergistic effects involving crown ethers. Synthesis efforts are being directed toward enhanced sodium binding by crown ethers, both neutral and proton-ionizable. Studies with real tank waste at PNNL will provide feedback toward solvent compositions that have promising properties.

Moyer, Bruce A.; Bonnesen, Peter V.; Custelcean, Radu; Delmau, Laetitia H.; Engle, Nancy L.; Kang, Hyun-Ah; Keever, Tamara J.; Marchand, Alan P.; Gadthula, Srinivas; Gore, Vinayak K.; Huang, Zilin; Sivappa, Rasapalli; Tirunahari, Pavan K.; Levitskaia, Tatiana G.; Lumetta, Gregg J.

2005-09-26T23:59:59.000Z

189

An evaluation of neutralization for processing sodium-bearing liquid waste  

SciTech Connect (OSTI)

This report addresses an alternative concept for potentially managing the sodium-bearing liquid waste generated at the Idaho Chemical Processing Plant from the current method of calcining a blend of sodium waste and high-level liquid waste. The concept is based on removing the radioactive components from sodium-bearing waste by neutralization and grouting the resulting low-level waste for on-site near-surface disposal. Solidifying the sodium waste as a remote-handled transuranic waste is not considered to be practical because of excessive costs and inability to dispose of the waste in a timely fashion. Although neutralization can remove most radioactive components to provide feed for a solidified low-level waste, and can reduce liquid inventories four to nine years more rapidly than the current practice of blending sodium-bearing liquid waste with first-cycle raffinite, the alternative will require major new facilities and will generate large volumes of low-level waste. Additional facility and operating costs are estimated to be at least $500 million above the current practice of blending and calcining. On-site, low-level waste disposal may be technically difficult and conflict which national and state policies. Therefore, it is recommended that the current practice of calcining a blend of sodium-bearing liquid waste and high-level liquid waste be continued to minimize overall cost and process complexities. 17 refs., 4 figs., 16 tabs.

Chipman, N.A.; Engelgau, G.O.; Berreth, J.R.

1989-01-01T23:59:59.000Z

190

Sustained Recycle in Light Water and Sodium-Cooled Reactors  

SciTech Connect (OSTI)

From a physics standpoint, it is feasible to sustain recycle of used fuel in either thermal or fast reactors. This paper examines multi-recycle potential performance by considering three recycling approaches and calculating several fuel cycle parameters, including heat, gamma, and neutron emission of fresh fuel; radiotoxicity of waste; and uranium utilization. The first recycle approach is homogeneous mixed oxide (MOX) fuel assemblies in a light water reactor (LWR). The transuranic portion of the MOX was varied among Pu, NpPu, NpPuAm, or all-TRU. (All-TRU means all isotopes through Cf-252.) The Pu case was allowed to go to 10% Pu in fresh fuel, but when the minor actinides were included, the transuranic enrichment was kept below 8% to satisfy the expected void reactivity constraint. The uranium portion of the MOX was enriched uranium. That enrichment was increased (to as much as 6.5%) to keep the fuel critical for a typical LWR irradiation. The second approach uses heterogeneous inert matrix fuel (IMF) assemblies in an LWR - a mix of IMF and traditional UOX pins. The uranium-free IMF fuel pins were Pu, NpPu, NpPuAm, or all-TRU. The UOX pins were limited to 4.95% U-235 enrichment. The number of IMF pins was set so that the amount of TRU in discharged fuel from recycle N (from both IMF and UOX pins) was made into the new IMF pins for recycle N+1. Up to 60 of the 264 pins in a fuel assembly were IMF. The assembly-average TRU content was 1-6%. The third approach uses fast reactor oxide fuel in a sodium-cooled fast reactor with transuranic conversion ratio of 0.50 and 1.00. The transuranic conversion ratio is the production of transuranics divided by destruction of transuranics. The FR at CR=0.50 is similar to the CR for the MOX case. The fast reactor cases had a transuranic content of 33-38%, higher than IMF or MOX.

Steven J. Piet; Samuel E. Bays; Michael A. Pope; Gilles J. Youinou

2010-11-01T23:59:59.000Z

191

CX-005766: Categorical Exclusion Determination | Department of Energy  

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

6: Categorical Exclusion Determination 6: Categorical Exclusion Determination CX-005766: Categorical Exclusion Determination Filter Testing with Static Test Cell CX(s) Applied: B3.6 Date: 04/20/2011 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office Researchers plan to use the static test cell to conduct filter tests with a variety of filter media. The feed for the tests will consist of water, simulated Savannah River Site (SRS) salt solution, nitric acid, oxalic acid, sodium hydroxide, simulated SRS sludge, monosodium titanate, and crystalline silicotitanate. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-005766.pdf More Documents & Publications CX-002994: Categorical Exclusion Determination CX-005870: Categorical Exclusion Determination CX-002992

192

CX-005924: Categorical Exclusion Determination | Department of Energy  

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

924: Categorical Exclusion Determination 924: Categorical Exclusion Determination CX-005924: Categorical Exclusion Determination Light Emitting Diode Lighting CX(s) Applied: B2.5, B5.1 Date: 05/13/2011 Location(s): Dover, Delaware Office(s): Energy Efficiency and Renewable Energy Replacement of 71 high pressure sodium (HPS) lights, with 71 light emitting diode (LED) lights - LED lights provide savings of up to - 30% on electricity (over HPS). In addition, LED lights will reduce maintenance costs, have a longer service life, provide manageability of illumination levels, and focus light specifically where needed, reducing light pollution. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-005924.pdf More Documents & Publications CX-001765: Categorical Exclusion Determination CX-003723: Categorical Exclusion Determination

193

CX-002665: Categorical Exclusion Determination | Department of Energy  

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

665: Categorical Exclusion Determination 665: Categorical Exclusion Determination CX-002665: Categorical Exclusion Determination City of Woodland, California CX(s) Applied: B1.32, A9, A11, B5.1 Date: 05/26/2010 Location(s): Woodland, California Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant Program for; 1) Develop energy efficiency and conservation strategy, 2) technical support services to prepare photovoltaic solar system versus streetlight feasibility study, and 3) purchase and install light-emitting diode streetlights to replace existing high pressure sodium streetlights. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-002665.pdf More Documents & Publications CX-001975: Categorical Exclusion Determination CX-002633: Categorical Exclusion Determination

194

Preparation of polyaniline/sodium alanate hybrid using a spray-drying process  

SciTech Connect (OSTI)

Nowadays, hydrogen is highly interesting as an energy source, in particular in the automotive field. In fact, hydrogen is attractive as a fuel because it prevents air pollution and greenhouse emissions. One of the main problems with the utilization of hydrogen as a fuel is its on-board storage. The purpouse of this work was to develop a new hybrid material consisting of a polyaniline matrix with sodium alanate (NaAlH{sub 4}) using a spray-drying process. The polyaniline used for this experiment was synthesized by following a well-established method for the synthesis of the emeraldine base form of polyaniline using dodecylbenzenesulfonic acid as dopant. Micro particles of polyaniline/sodium alanate hybrids with 30 and 50 wt% of sodium alanate were prepared by using a spray-drying technique. Dilute solutions of polyaniline/sodium alanate were first prepared, 10g of the solid materials were mixed with 350 ml of toluene under stirring at room temperature for 24h and the solutions were dried using spray-dryer (Bchi, Switzerland) with 115C of an inlet temperature. The hybrids were analyzed by differential scanning calorimetry, FT-IR and scanning electron microscopy (SEM). The addition of sodium alanate decreased the glass transition temperature of the hybrids when compared to neat polyaniline. FT-IR spectrum analysis was performed to identify the bonding environment of the synthesized material and was observed that simply physically mixture occurred between polyaniline and sodium alanate. The SEM images of the hybrids showed the formation of microspheres with sodium alanate dispersed in the polymer matrix.

Moreira, B. R., E-mail: bru-rms@yahoo.com.br, E-mail: fabiopassador@gmail.com, E-mail: pessan@ufscar.br; Passador, F. R., E-mail: bru-rms@yahoo.com.br, E-mail: fabiopassador@gmail.com, E-mail: pessan@ufscar.br; Pessan, L. A., E-mail: bru-rms@yahoo.com.br, E-mail: fabiopassador@gmail.com, E-mail: pessan@ufscar.br [Dep. de Engenharia de Materiais, Federal University of So Carlos (Brazil)

2014-05-15T23:59:59.000Z

195

Ion Recognition Approach to Volume Reduction of Alkaline Tank Waste by Separation of Sodium Salts  

SciTech Connect (OSTI)

In this project, now completing its third year of its second renewal period, a collaborative project involving Oak Ridge National Laboratory, Pacific Northwest National Laboratory, and the University of North Texas has been addressing outstanding questions regarding the separation of the bulk sodium constituents of alkaline tank waste. The principal potential benefit of this research is a major reduction in the volume of radioactive tank waste, obviating the building of expensive new tanks and reducing the costs of vitrification. As a general approach, principles of ion recognition are being explored toward discovery and basic understanding of liquid-liquid extraction systems that selectively separate sodium hydroxide and sodium salts from waste-like matrices. Questions being addressed pertain to applicable extraction equilibria and how extraction properties relate to extractant structure. Progress has included the elucidation of the promising concept of pseudo hydroxide extraction (PHE), demonstration of crown-ether synergized PHE, demonstration of combined sodium hydroxide/sodium nitrate separation, and synthesis of novel ditopic receptors for ditopic PHE. In future efforts (pending renewal), a thermochemical study of PHE relating extractant acidity to extraction strength is proposed, and this study will be extended to systems containing crown ethers, including proton-ionizable ones. A series of crown ethers will be synthesized for this purpose and to investigate the extraction of bulk sodium salts (e.g., nitrate, nitrite, and sulfate), possibly in combination with sodium hydroxide. Simple proof-of-principle tests with real tank waste at PNNL will provide feedback toward solvent designs that have desirable properties. In view of the upcoming milestone of completion of the second renewal period, this report will, in addition to providing a summary of the past year's progress, summarize all of the work completed since the start of this project.

Moyer, Bruce A.; Marchand, Alan P.; Lumetta, Gregg J.

2004-06-30T23:59:59.000Z

196

MCNP Techniques for Modeling Sodium Iodide Spectra of Kiwi Surveys  

SciTech Connect (OSTI)

This work demonstrates how MCNP can be used to predict the response of mobile search and survey equipment from base principles. The instrumentation evaluated comes from the U.S. Department of Energys Aerial Measurement Systems. Through reconstructing detector responses to various point-source measurements, detector responses to distributed sources can be estimated through superposition. Use of this methodology for currently deployed systems allows predictive determinations of activity levels and distributions for common configurations of interest. This work helps determine the quality and efficacy of certain surveys in fully characterizing an effected site following a radiological event of national interest.

Robert B. Hayes

2007-11-01T23:59:59.000Z

197

Sodium bicarbonate and Alkaten as buffers in beef cattle diets  

E-Print Network [OSTI]

. PROCEDURE FOR INDIGESTIBLE ACID DETERGENT FIBER ( IAOF ) DETERMINATION. 84 LIST OF FIGURES Figure l. Time vs. rumen pH in the 90% concentrate diet. 2. Time vs. rumen pH in the 50% concentrate diet. 3. Time vs. duodena1 pH in the 90% concentrate diet 4... steers fed two levels of concentrate. 2. To determine the effect of NaHCO 3 and Alkaten on the site and extent of nutr 1ent digestibility and to exam1ne the relationship of pH and digestibility. 3. To determ1ne the effect of buffers on intake, feed...

Boerner, Benedict Joseph

1985-01-01T23:59:59.000Z

198

SNAKE Sodium S-CO2 Interactions Experiment - Argonne National Laboratory  

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

SNAKE Sodium S-CO2 Interactions Experiment SNAKE Sodium S-CO2 Interactions Experiment Capabilities Engineering Experimentation Reactor Safety Testing and Analysis Overview Nuclear Reactor Severe Accident Experiments MAX NSTF SNAKE Aerosol Experiments System Components Laser Applications Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr SNAKE Sodium S-CO2 Interactions Experiment 1 2 The supercritical carbon dioxide (S-CO2) Brayton cycle, coupled with a Sodium-Cooled Fast Reactor (SFR), has been identified as a new and innovative energy conversion technology that could contribute to improving the economics of advanced nuclear energy. For these reactors, a new generation of compact, highly-efficient heat exchangers (HXs) will be employed that show great promise in improving the safety and cost of SFRs; however, small HX leaks could still occur. SNAKE is designed to study S-CO2 leakage into sodium.

199

Nanocomposite hydrogel from grafting of acrylamide onto HPMC using sodium montmorillonite nanoclay and removal of crystal violet dye  

Science Journals Connector (OSTI)

Hydrogel nanocomposites were synthesized from grafting of acrylamide onto hydroxypropyl methylcellulose using methylenebisacrylamide crosslinker and sodium montmorillonite (Na-MMt) nanoclay. The effect of nanoclay

Gholam Reza Mahdavinia; Javad Hasanpour; Zeinab Rahmani; Shiva Karami

2013-10-01T23:59:59.000Z

200

Combined Utilization of Cation Exchanger and Neutral Receptor to Volume Reduction of Alkaline Tank Waste by Separation of Sodium Salts  

SciTech Connect (OSTI)

In this report, novel approaches to the selective liquid-liquid extraction separation of sodium hydroxide and sodium nitrate from high-level alkaline tank waste will be discussed. Sodium hydroxide can be successfully separated from alkaline tank-waste supernatants by weakly acidic lipophilic hydroxy compounds via a cation-exchange mechanism referred to as pseudo hydroxide extraction. In a multi-cycle process, as sodium hydroxide in the aqueous phase becomes depleted, it is helpful to have a neutral sodium receptor in the extraction system to exploit the high nitrate concentration in the waste solution to promote sodium removal by an ion-pair extraction process. Simultaneous utilization of an ionizable organic hydroxy compound and a neutral extractant (crown ether) in an organic phase results in the synergistic enhancement of ion exchange and improved separation selectivity due to the receptor's strong and selective sodium binding. Moreover, combination of the hydroxy compound and the crown ether provides for mutually increased solubility, even in a non-polar organic solvent. Accordingly, application of Isopar{reg_sign} L, a kerosene-like alkane solvent, becomes feasible. This investigation involves examination of such dual-mechanism extraction phases for sodium extraction from simulated and actual salt cake waste solutions. Sodium salts can be regenerated upon the contact of the loaded extraction phases with water. Finally, conditions of potential extraction/strip cycling will be discussed.

Levitskaia, Tatiana G.; Lumetta, Gregg J.; Moyer, Bruce A.

2004-03-29T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Sensory and physical characteristics of reduced sodium, chunked and formed hams from hot-processed, electrically stimulated pork carcasses  

E-Print Network [OSTI]

treatment, were subdivided into two equal groups, deboned and injected with brine containing sodium nitrite (0. 1X), dextrose (1. 25X), sodium erythorbate (0. 42K), sodium phosphate (0. 5X), and chloride salt (15. 0X) consisting of either sodium chloride... (NaC1) or equivalent amounts of NaC1 and potassium chloride (KC1). Within each salt treatment, hams were tumbled for 1, 2 or 3 hr and vacuum stuffed into pre-stuck fibrous casings. All hams were cooked to an internal temperature of 65 C, chilled...

Bohac, Joseph John

2012-06-07T23:59:59.000Z

202

ESS 2012 Peer Review - Sodium Intercalation Battery for Stationary Storage - David Ofer, Tiax  

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

Sodium Intercalation Battery for Sodium Intercalation Battery for Stationary Storage Energy Storage Systems Program (ESS) Peer Review and Update Meeting 2012 David Ofer Ofer.david@tiaxllc.com Washington DC, September 27, 2012 Sodium Intercalation Battery for Stationary Storage Background and Purpose 2 Large-scale stationary energy storage for integration with renewables and for off-peak energy capture is a new application requiring new rechargeable batteries. * New combination of requirements - Long cycle life under deep cycling use profile - High cycling efficiency - Moderate rate capability - Very low cost - No requirement for particularly high specific energy or energy density * TIAX is developing a novel Na-ion battery - Leverages teachings of Li-ion technology - Targets novel low-cost chemistry and cell design

203

Cost Transfers at the Department's Sodium Bearing Waste Treatment Facility Construction Project  

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

U.S. Department of Energy U.S. Department of Energy Office of Inspector General Office of Audits and Inspections Audit Report Cost Transfers at the Department's Sodium Bearing Waste Treatment Facility Construction Project OAS-M-13-03 August 2013 Department of Energy Washington, DC 20585 August 8, 2013 MEMORANDUM FOR THE SENIOR ADVISOR FOR ENVIRONMENTAL MANAGEMENT FROM: Rickey R. Hass Deputy Inspector General for Audits and Inspections Office of Inspector General SUBJECT: INFORMATION: Audit Report on "Cost Transfers at the Department's Sodium Bearing Waste Treatment Facility Construction Project" BACKGROUND In 2005, the Department of Energy (Department) awarded the Idaho Cleanup Project contract to CH2M ♦ WG Idaho, LLC (CWI) to remediate the Idaho National Laboratory. The Sodium

204

Fact Sheet: Sodium-Beta Batteries (October 2012) | Department of Energy  

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

Beta Batteries (October 2012) Beta Batteries (October 2012) Fact Sheet: Sodium-Beta Batteries (October 2012) DOE's Energy Storage Program is funding research to further develop a novel planar design for sodium-beta batteries (Na-beta batteries or NBBs) that will improve energy and power densities and simplify manufacturing. This project will demonstrate a planar prototype that operates at <300 degrees Celsius and will scale up the storage capacity to 5 kW, improving on the performance levels being pursued in related battery research projects. Fact Sheet: Sodium-Beta Batteries (October 2012) More Documents & Publications Energy Storage Systems 2012 Peer Review Presentations - Poster Session 1 (Day 1): ARPA-E Projects Energy Storage Systems 2012 Peer Review and Update Meeting Advanced Materials and Devices for Stationary Electrical Energy Storage

205

Development and application of modeling tools for sodium fast reactor inspection  

SciTech Connect (OSTI)

To support the development of in-service inspection methods for the Advanced Sodium Test Reactor for Industrial Demonstration (ASTRID) project led by the French Atomic Energy Commission (CEA), several tools that allow situations specific to Sodium cooled Fast Reactors (SFR) to be modeled have been implemented in the CIVA software and exploited. This paper details specific applications and results obtained. For instance, a new specular reflection model allows the calculation of complex echoes from scattering structures inside the reactor vessel. EMAT transducer simulation models have been implemented to develop new transducers for sodium visualization and imaging. Guided wave analysis tools have been developed to permit defect detection in the vessel shell. Application examples and comparisons with experimental data are presented.

Le Bourdais, Florian; Marchand, Benot; Baronian, Vahan [CEA LIST, Centre de Saclay F-91191 Gif-sur-Yvette (France)

2014-02-18T23:59:59.000Z

206

Design and development of a high-temperature sodium compatibility testing facility  

SciTech Connect (OSTI)

The use of advanced alloys within sodium-cooled fast reactors (SFRs) has been identified as a means of increasing plant efficiency and reducing construction costs. In particular, alloys such as NF-616, NF-709 and HT-UPS are promising because they exhibit greater strength than traditional structural materials such as 316-SS. However, almost nothing is known about the sodium compatibility of these new alloys. Therefore, research taking place at the Univ. of Wisconsin-Madison is focused on studying the effects of sodium corrosion on these materials under prototypic SFR operating conditions (600 [ deg. C], V Na=10 [m/s], C 0{approx} 1 [wppm]). This paper focuses on the design and construction of the testing facility with an emphasis on moving magnet pumps (MMPs). Corrosion data from a preliminary 500 [hr] natural convection test will also be presented. (authors)

Hvasta, M. G.; Nolet, B. K.; Anderson, M. H. [Univ. of Wisconsin-Madison, 1500 Engineering Dr., Madison - ERB 841, WI 53705 (United States)

2012-07-01T23:59:59.000Z

207

Sodium sulfatediatomite composite materials for high temperature thermal energy storage  

Science Journals Connector (OSTI)

Abstract This work explores the use of sodium sulfate and diatomite to formulate composite materials for high temperature thermal energy storage applications. Sodium sulfate in the composite functions as a phase change material (PCM) and diatomite as a structural skeleton for shape stabilization. It is found that sodium sulfate and diatomite have an excellent chemical compatibility with the PCM melting temperature at around 880C. It is shown that the composite containing 45% diatomite gives an optimal formulation in terms of energy density, salt leakage and mechanical strength. The results also suggest that the composite with the optimal formulation has an application window of 890980C. Failures occur to the composite materials at temperatures above 1000C.

Yue Qin; Guanghui Leng; Xiang Yu; Hui Cao; Geng Qiao; Yunfeng Dai; Yelong Zhang; Yulong Ding

2014-01-01T23:59:59.000Z

208

Surface-Driven Sodium Ion Energy Storage in Nanocellular Carbon Foams  

SciTech Connect (OSTI)

Sodium ion (Na+) batteries have attracted increased attention for energy storage due to the natural abundance of sodium, but their development is hindered by the poor intercalation property of Na+ in electrodes. This paper reports a detailed study of high capacity, high rate sodium ion energy storage in high-surface-area nanocellular carbon foams (NCCF). The energy storage mechanism is surface-driven reactions between Na+ and oxygen-containing functional groups on the surface of NCCF. The surface reaction, rather than a Na+ bulk intercalation reaction, leads to high rate performance and cycling stability due to the enhanced reaction kinetics and the absence of electrode structure change. The NCCF makes more surface area and surface functional groups available for the Na+ reaction. It delivers 152 mAh/g capacity at the rate of 0.1 A/g and a capacity retention of 90% for over 1600 cycles.

Shao, Yuyan; Xiao, Jie; Wang, Wei; Engelhard, Mark H.; Chen, Xilin; Nie, Zimin; Gu, Meng; Saraf, Laxmikant V.; Exarhos, Gregory J.; Zhang, Jiguang; Liu, Jun

2013-07-23T23:59:59.000Z

209

CX-002992: Categorical Exclusion Determination | Department of Energy  

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

2: Categorical Exclusion Determination 2: Categorical Exclusion Determination CX-002992: Categorical Exclusion Determination Cross-Flow Ultrafiltration Cleaning and Fouling CX(s) Applied: B3.6 Date: 06/16/2010 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office Currently, cross flow filtration is deployed at both Waste Treatment Plant (WTP) and Salt Waste Processing Facility (SWPF). However, there is no strategy for determining the cleaning or backpulsing requirements for these facilities. The frequency of cleaning will significantly impact both process throughput as well as the sodium demand (through acid neutralization). This activity would develop the understanding of filter fouling to allow development of a cleaning/backpulsing strategy.

210

CX-000078: Categorical Exclusion Determination | Department of Energy  

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

78: Categorical Exclusion Determination 78: Categorical Exclusion Determination CX-000078: Categorical Exclusion Determination Chico's Energy Efficiency and Conservation Strategy, Audits, Education Program, and Streetlight Retrofits CX(s) Applied: B5.1, A9, A11 Date: 11/16/2009 Location(s): Chico, California Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant Program. 1) Develop energy efficiency and conservation strategy. 2) Hire consultant to conduct energy audits. 3) Street light retrofits from high-pressure sodium to LEDs (light-emitting diodes). 4) Weatherization, water conservation and energy/clean air/recycling education program. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-000078.pdf More Documents & Publications CX-000077: Categorical Exclusion Determination

211

Method of making a current collector for a sodium/sulfur battery  

DOE Patents [OSTI]

This specification is directed to a method of making a current collector for a sodium/sulfur battery. The current collector so-made is electronically conductive and resistant to corrosive attack by sulfur/polysulfide melts. The method includes the step of forming the current collector for the sodium/sulfur battery from a composite material formed of aluminum filled with electronically conductive fibers selected from the group of fibers consisting essentially of graphite fibers having a diameter up to 10 microns and silicon carbide fibers having a diameter in a range of 500--1,000 angstroms. 2 figs.

Tischer, R.P.; Winterbottom, W.L.; Wroblowa, H.S.

1987-03-10T23:59:59.000Z

212

Characterization of Sodium Emulsion Soaps Formed from Production Fluids of Kutei Basin, Indonesia  

Science Journals Connector (OSTI)

The Kutei Basin soap emulsions are resolved by heating and treatment with relatively high dosages of acid demulsifiers. ... Two main types of soaps can form in production fluids:1 calcium naphthenate scales, which can manifest as in situ sticky or hardened deposits, and sodium emulsion soaps, which can create severe oil dehydration problems and lead to excessive slop oil/sludge volumes at crude-oil terminals. ... Similar sodium carboxylate soaps are also common to other basins around Borneo (e.g., Sarawak, Brunei, and Sabah)2 and in other parts of southeast Asia (e.g., the South China Sea, Malaysia, offshore Vietnam, Bohai Bay in China, and elsewhere in Indonesia). ...

Darrell L. Gallup; Joseph A. Curiale; P. Colin Smith

2007-05-02T23:59:59.000Z

213

Simplified modeling of liquid sodium medium with temperature and velocity gradient using real thermal-hydraulic data. Application to ultrasonic thermometry in sodium fast reactor  

SciTech Connect (OSTI)

In the framework of the French R and D program for the Generation IV reactors and specifically for the sodium cooled fast reactors (SFR), studies are carried out on innovative instrumentation methods in order to improve safety and to simplify the monitoring of fundamental physical parameters during reactor operation. The aim of the present work is to develop an acoustic thermometry method to follow up the sodium temperature at the outlet of subassemblies. The medium is a turbulent flow of liquid sodium at 550 Degree-Sign C with temperature inhomogeneities. To understand the effect of disturbance created by this medium, numerical simulations are proposed. A ray tracing code has been developed with Matlab Copyright-Sign in order to predict acoustic paths in this medium. This complex medium is accurately described by thermal-hydraulic data which are issued from a simulation of a real experiment in Japan. The analysis of these results allows understanding the effects of medium inhomogeneities on the further thermometric acoustic measurement.

Massacret, N.; Jeannot, J. P. [DEN/DTN/STPA/LIET, CEA Cadarache, Saint Paul Lez Durance (France); Moysan, J.; Ploix, M. A.; Corneloup, G. [Aix-Marseille Univ, LMA UPR 7051 CNRS, site LCND, 13625 Aix-en-Provence (France)

2013-01-25T23:59:59.000Z

214

What determines cell size?  

E-Print Network [OSTI]

as: Marshall WF, et al. : What determines cell size? BMC7007/10/101 FORUM Open Access What determines cell size?biologists have been wondering what determines the size of

2012-01-01T23:59:59.000Z

215

Continuous-wave sodium D2 resonance radiation generated in single-pass sum-frequency  

E-Print Network [OSTI]

-frequency generation. The demonstrated conversion efficiency is 3.2% W-1 cm-1 . This compact solid-state light source applications involving the high- resolution sodium spectrum, including laser remote sensing, biology, communications, display technology [1], and Bose­Einstein condensation [2]. A narrow- band solid-state source

216

indirect study, coal was oxidatively de-graded with sodium dichromate and the  

E-Print Network [OSTI]

Cleaning Technology (Noyes Data Corporation, Park Ridge, N.J., 1981). 10. Z. Hussain, E. Umbach, D. Aindirect study, coal was oxidatively de- graded with sodium dichromate and the esterified products- vestigators concluded (17, p. 380) that "thiophene derivatives must be indige- nous to coal." The direct XANES

Howat, Ian M.

217

Synthesis of highly ordered mesoporous silica materials using sodium silicate and amphiphilic block copolymers  

E-Print Network [OSTI]

Synthesis of highly ordered mesoporous silica materials using sodium silicate and amphiphilic block. Pinnavaia and coworkers6 have reported the synthesis of MSU-X mesoporous materials with several non- ionic and cowork- ers7 have reported the synthesis of SBA mesoporous silica materials, which have well

Kim, Ji Man

218

Pressure-Induced Structural Transformations of the Zintl Phase Sodium Silicide Ral Quesada Cabreraa  

E-Print Network [OSTI]

and reduction of Na+ to metallic sodium. We have combined our experimental studies with DFT calculations and germanides belong to the family of Zintl phases, in which polyanionic species, formed of the tetrelide atoms counterbalance the electropositive metal cations [1-3]. These compounds are interesting because the Si and Ge

Paris-Sud XI, Université de

219

Molecular Dynamic Simulation of Sodium in 7-Pin LMFBR Bundle Under Hypothetical Accident Conditions  

SciTech Connect (OSTI)

In the frame of safety analysis of liquid metal fast breeder reactors (LMFBRs) under hypothetical Unprotected Loss of Flow (ULOF) conditions two-phase flow of sodium is simulated in a 7-pin bundle, with hexagonal lattice. Molecular dynamics, with the application of the Direct Simulation Monte Carlo (DSMC) method, and a macroscopic model describing rewetting sequences due to the flow of a sodium liquid film along the pin surfaces, are applied to simulate the coolant in the bundle. The pin surfaces and the inner surface of the hexagonal canning are treated in the Monte Carlo simulation as diffusively reflecting surfaces. Collisions of sodium molecules are computed with the 'hard-sphere' model. With respect to previous work the following improvements of the computational code were made: i) The full bundle is simulated, thus allowing for asymmetries, like a skewed power distribution, to be accounted for; ii) A pin model calculates detailed temperature distributions in the pins, so that temperature boundary conditions are computed and not imposed; iii) Post processing visualisation of computed results was developed. An out of pile sodium boiling experiment run at the Nuclear Research Center of Karlsruhe, Germany, is simulated and conclusions are drawn about the applicability of the methodology in computer codes dedicated to breeder reactors safety analysis. (authors)

Bottoni, Maurizio [University of Ferrara, Physics Department, Via Paradiso 12, I-44100 Ferrara (Italy); Bottoni, Claudio; Scanu, John [University of Pisa, Lungarno Pacinotti, 43 - 56126 Pisa (Italy)

2006-07-01T23:59:59.000Z

220

NACOM code for analysis of postulated sodium spray fires in LMFBRs  

SciTech Connect (OSTI)

An analysis of potential sodium spills and fires in liquid metal fast breeder reactors has been made to assess the maximum equipment cell loading conditions. A computer code called NACOM (sodium combustion) has been developed at Brookhaven National Laobratory (BNL) to analyze sodium spray fires. This report contains a detailed description of physical models used in this code as well as programming aspects. The single droplet combustion model and the model describing the droplets' motion are verified. Comparisons between NACOM predictions and SPRAY-3A predictions of the Atomics International (AI) LTV Jet Tests are made. Good agreement is found between the NACOM predictions and the experimental data. NACOM predictions of the pressure rise are more accurate than SPRAY-3A predictions for most of the cases studied. The code has been verified for oxygen concentrations ranging from 0 to 21%. NACOM utilizes more realistic single droplet and spray combustion models than SPRAY-3A. Moreover, NACOM does not utilize adjustable parameters for the burning rate equations, contrary to the approach taken with SPRAY-3A. Thus, the NACOM code is a more reliable code for use in the analysis of large-scale sodium spray fires in LMFBR containment cells. 24 refs., 32 figs.

Tsai, S.S.

1980-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

A simple Markov model of sodium channels with a dynamic threshold  

Science Journals Connector (OSTI)

Characteristics of action potential generation are important to understanding brain functioning and, thus, must be understood and modeled. It is still an open question what model can describe concurrently the phenomena of sharp spike shape, the spike ... Keywords: Conductance-based neurons, Divisive effect, Dynamic patch-clamp, Sodium channels, Spike shape, Spike threshold

A. V. Chizhov; E. Yu. Smirnova; K. Kh. Kim; A. V. Zaitsev

2014-08-01T23:59:59.000Z

222

Deficiencies of sodium and iodine in grazing sheep in northern China  

E-Print Network [OSTI]

Deficiencies of sodium and iodine in grazing sheep in northern China DG Masters JR Lindsay SX Yu DX of Traditional Veterinary Medicine, Chinese Academy of Agricultural Science, Xiaoxihu, Lanzhou, Gansu, China An examination of the mineral status of grazing sheep at 3 sites in northern China has provided evidence

Paris-Sud XI, Université de

223

Sodium-Silicate Route to Submicrometer Hybrid PEG@Silica Particles  

Science Journals Connector (OSTI)

Sodium-Silicate Route to Submicrometer Hybrid PEG@Silica Particles ... Supported by the Nano Functional Materials (NFM) MAGNET Program of the Israel Ministry of Trade and Industry, by the Infrastructure (Tashtiot) Program of the Israel Ministry of Science, and by the European Functionalized Advanced Materials and Engineering Hybrids and Ceramic (FAME) Network of Excellence (NOE). ...

Hila Elimelech; David Avnir

2008-03-04T23:59:59.000Z

224

Advanced Materials for Sodium-Beta Alumina Batteries: Status, Challenges and Perspectives  

SciTech Connect (OSTI)

The increasing penetration of renewable energy and the trend toward clean, efficient transportation have spurred growing interests in sodium-beta alumina batteries that store electrical energy via sodium ion transport across a ?"-Al2O3 solid electrolyte at elevated temperatures (typically 300~350C). Currently, the negative electrode or anode is metallic sodium in molten state during battery operation; the positive electrode or cathode can be molten sulfur (Na-S battery) or solid transition metal halides plus a liquid phase secondary electrolyte (e.g., ZEBRA battery). Since the groundbreaking works in the sodium-beta alumina batteries a few decades ago, encouraging progress has been achieved in improving battery performance, along with cost reduction. However there remain issues that hinder broad applications and market penetration of the technologies. To better the Na-beta alumina technologies require further advancement in materials along with component and system design and engineering. This paper offers a comprehensive review on materials of electrodes and electrolytes for the Na-beta alumina batteries and discusses the challenges ahead for further technology improvement.

Lu, Xiaochuan; Xia, Guanguang; Lemmon, John P.; Yang, Zhenguo

2010-05-01T23:59:59.000Z

225

Effects of Sodium Chloride Particles, Ozone, UV, and Relative Humidity on Atmospheric Corrosion of Silver  

E-Print Network [OSTI]

Effects of Sodium Chloride Particles, Ozone, UV, and Relative Humidity on Atmospheric Corrosion The corrosion of Ag contaminated with NaCl particles in gaseous environments containing humidity and ozone analyzed using a coulometric reduction technique. The atmospheric corrosion of Ag was greatly accelerated

226

Original article Increased late sodium current in myocytes from a canine heart failure  

E-Print Network [OSTI]

Original article Increased late sodium current in myocytes from a canine heart failure model and from failing human heart Carmen R. Valdivia, William W. Chu, Jielin Pu 1 , Jason D. Foell, Robert A December 2004 Abstract Electrophysiological remodeling of ion channels in heart failure causes action

Kamp, Tim

227

Room-temperature stationary sodium-ion batteries for large-scale electric energy storage  

E-Print Network [OSTI]

energy and utility applications, such as pump hydro, compressed air, y-wheel and electrochemicalRoom-temperature stationary sodium-ion batteries for large-scale electric energy storage Huilin Pan attention particularly in large- scale electric energy storage applications for renewable energy and smart

Wang, Wei Hua

228

Evaluation of a sodium/Hastelloy-X heat pipe for wing leading edge cooling  

SciTech Connect (OSTI)

This report covers assembly of a sodium heat pipe, testing to verify performance during start-up and under steady-state conditions with stagnation point heat loads to about 80 W/cm{sup 2}, performance analysis and evaluation. Evaluation of this leading edge cooling concept is offered and recommendations for further research discussed.

Merrigan, M.A.; Sena, J.T. [Los Alamos National Lab., NM (United States); Glass, D.E. [Analytical Services and Materials, Hampton, VA (United States)

1996-12-31T23:59:59.000Z

229

Physical and functional links between anion exchanger-1 and sodium pump  

E-Print Network [OSTI]

pressure cooker containing 0.1 M sodium citrate buffer, pH 6.0 for 2 min. Following blocking with 10% FBS in PBST-1 (Blocking buffer), primary antibodies at 1:50 dilution in blocking buffer were applied and sections incubated at 4(C overnight. Fluorochrome...

Su, Ya; Al-Lamki, Rafia S.; Blake-Palmer, Katherine G.; Best, Alison; Golder, Zoe J.; Zhou, Aiwu; Karet Frankl, Fiona E.

2014-07-09T23:59:59.000Z

230

Determination of dispersivities and reactionkinetics of selected basalts of columbia river plateau using an inverse analytical solution technique  

E-Print Network [OSTI]

on the determination of transport parameters by modeling sodium transport in the Priest Rapids and Roza flow tops of the Wanapum formation, and Rocky Coulee and Umtanum flow tops of the Grande Ronde formation, within the Cold Creek Syncline of the Hanford Nuclear Waste...

Fahlquist, Lisa Armstrong

2012-06-07T23:59:59.000Z

231

CX-003632: Categorical Exclusion Determination | Department of Energy  

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

3632: Categorical Exclusion Determination 3632: Categorical Exclusion Determination CX-003632: Categorical Exclusion Determination Analysis of Evaporator Scale Sample CX(s) Applied: B3.6 Date: 08/10/2010 Location(s): Aiken, South Carolina Office(s): Savannah River Operations Office We will perform an analysis of samples of scale removed from the Gravity Drain Line (GDL) and the pot of the 2H Evaporator. The analysis will support the development of a Nuclear Criticality Safety Analysis (NCSA) for evaporator operation and chemical cleaning. Previous chemical cleaning operations were performed using a nitric acid flow sheet that involved copious amounts of depleted uranyl nitrate used as a neutron poison. Current interest and focus is on a chemical cleaning operation involving only a sodium hydroxide solution. Therefore, testing will involve

232

CX-000578: Categorical Exclusion Determination | Department of Energy  

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

8: Categorical Exclusion Determination 8: Categorical Exclusion Determination CX-000578: Categorical Exclusion Determination Solubility of Synthesized Iron and Lead Sulfide Minerals CX(s) Applied: B3.6 Date: 12/10/2009 Location(s): Albuquerque, New Mexico Office(s): Sandia Site Office Sandia National Laboratories/New Mexico proposes to prepare aqueous solutions of Na2S.9H2O (sodium sulfide nonahydrate) in an anoxic glove box, and combine the solution with aqueous solutions of iron/lead, to synthesize iron/lead sulfide minerals. The solubility of these minerals in brine would be measured. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-000578.pdf More Documents & Publications US-Japan rare elements meeting Tank Waste Corporate Board Meeting 11/18/10 Radionuclide Interaction and Transport in Representative Geologic Media

233

CX-004799: Categorical Exclusion Determination | Department of Energy  

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

99: Categorical Exclusion Determination 99: Categorical Exclusion Determination CX-004799: Categorical Exclusion Determination Energy Conservation Programs in Transportation - Town of Robersonville CX(s) Applied: B5.1 Date: 12/21/2010 Location(s): Robersonville, North Carolina Office(s): Energy Efficiency and Renewable Energy, Golden Field Office The Town of Robersonville in North Carolina proposes to use $147,250 of Energy Efficiency and Conservation Block Grant funding to replace 470 high pressure sodium and mercury street lights with 470 energy efficient light-emitting diode streetlights. Through this project the Town is projected to save approximately 317,517 kilowatt hours and an estimated annual saving of approximately $61,358.81 and reduce greenhouse gases. DOCUMENT(S) AVAILABLE FOR DOWNLOAD

234

CX-002215: Categorical Exclusion Determination | Department of Energy  

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

15: Categorical Exclusion Determination 15: Categorical Exclusion Determination CX-002215: Categorical Exclusion Determination San Buenaventura's Joint Partnership to meet Clean Air Mandates CX(s) Applied: A9, A11, B2.5, B5.1 Date: 05/10/2010 Location(s): Ventura, California Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant Program. 1) Public private partnership joint effort to meet clean air mandates (greenhouse gas reduction modeling and cost effective strategy development), 2) direct install program for non-profit organizations, 3) provide training to local workforce on energy efficiency building retrofits, 4) retrofit high pressure sodium street lights with energy efficiency light fixtures, and 5) install 300 kilowatt-hour direct current (DC) solar electric system and

235

CX-001045: Categorical Exclusion Determination | Department of Energy  

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

1045: Categorical Exclusion Determination 1045: Categorical Exclusion Determination CX-001045: Categorical Exclusion Determination Photovoltaic Array Reuse of Los Alamos County Landfill Location CX(s) Applied: A7, B5.1 Date: 03/04/2010 Location(s): Los Alamos County, New Mexico Office(s): Los Alamos Site Office, NNSA-Headquarters Lease and use approximately 15 acres of the 46 acres of land the Los Alamos National Laboratory operated as a landfill for the installation of up to 2.5 megawatts of photovoltaics to generate electric power. The system would be connected to a 7 megawatts per hour battery storage system, which, in turn, would be connected to the Los Alamos Power Pool infrastructure. The battery energy storage would include sealed sodium sulfur cells mounted in a factory built enclosure, and sealed lead-acid cells located in a

236

CX-003638: Categorical Exclusion Determination | Department of Energy  

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

8: Categorical Exclusion Determination 8: Categorical Exclusion Determination CX-003638: Categorical Exclusion Determination Silver (Ag) Extraction of Sediments CX(s) Applied: B3.6 Date: 07/30/2010 Location(s): Aiken, South Carolina Office(s): Savannah River Operations Office This activity involves extracting silver (Ag) from core (sediment) collected from F-Area. Silver chloride (AgCl) was injected into the ground in F-Area in an effort to immobilize iodine (goal was to form a precipitate silver iodide). Four soil borings were collected in order to test the core for silver. Collected sediments will be mixed with a sodium thiosulfate pentahydrate solution in order to dissolve the Ag. The resulting solutions will be collected and analyzed for Ag. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-003638.pdf More Documents & Publications

237

CX-004179: Categorical Exclusion Determination | Department of Energy  

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

4179: Categorical Exclusion Determination 4179: Categorical Exclusion Determination CX-004179: Categorical Exclusion Determination Bench Scale Testing on the Cesium Nitric Acid Recovery Evaporator (CNP) CX(s) Applied: B3.6 Date: 09/23/2010 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office Vapor Liquid Equilibrium (VLE) measurements will be performed on nitric acid solutions as a function of the addition of the following salts: Aluminum nitrate, Lead nitrate, Cesium nitrate, Sodium nitrate and Potassium nitrate. The VLE measurements will be performed at a temperature of 55 degrees Celsius. This work is performed in support of Hanford?s Cesium Nitric Acid Recovery Evaporator. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-004179.pdf More Documents & Publications

238

CX-004807: Categorical Exclusion Determination | Department of Energy  

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

7: Categorical Exclusion Determination 7: Categorical Exclusion Determination CX-004807: Categorical Exclusion Determination Energy Conservation Programs in Transportation - Town of LaGrange CX(s) Applied: B5.1 Date: 12/21/2010 Location(s): LaGrange, North Carolina Office(s): Energy Efficiency and Renewable Energy, Golden Field Office The Town of LaGrange in North Carolina proposes to use $155,475 of Energy Efficiency and Conservation Block Grant funding to replace 345 high pressure sodium and mercury street lights with 345 energy efficient light-emitting diode streetlights. By replacing these lights, the Town's savings per year for kilowatt hour (kWh) is approximately 283,311 kWh or $36,774 per year with the street lights. In addition, there will be an annual savings of $15,296 in maintenance for a total annual savings of

239

CX-008751: Categorical Exclusion Determination | Department of Energy  

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

51: Categorical Exclusion Determination 51: Categorical Exclusion Determination CX-008751: Categorical Exclusion Determination Radiation Detection and Nuclear Materials Laboratory Equipment in Support of Student Training and Research by the Department of Mechanical and Nuclear Engineering at Virginia Commonwealth University CX(s) Applied: B3.6 Date: 05/17/2012 Location(s): Idaho Offices(s): Idaho Operations Office This project will support the development of the educational and research infrastructure of the new nuclear engineering program at Virginia Commonwealth University by purchasing a high-purity germanium detector, a gas proportional counter, and a Nal (sodium iodide) Scintillation detector. This equipment will be used for teaching purposes and in performing research. Microsoft Word - DOE-ID-12-010 VCU EC.doc

240

CX-000801: Categorical Exclusion Determination | Department of Energy  

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

801: Categorical Exclusion Determination 801: Categorical Exclusion Determination CX-000801: Categorical Exclusion Determination Salt Disposition Integration Project Blend and Feed Tanks Testing CX(s) Applied: B3.6 Date: 01/05/2010 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office 786-A personnel will conduct testing to recommend pump requirements for blending salt solution in the Salt Disposition Integration Project Blend and Feed Tanks. Testing will be conducted at a suitable scale, using a single pump with two opposing nozzles. The testing will consist of blending weak solutions of nitric acid (pH 4) and sodium hydroxide (pH 10) while monitoring pH in several locations of the tank. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-000801.pdf More Documents & Publications

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

CX-003639: Categorical Exclusion Determination | Department of Energy  

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

639: Categorical Exclusion Determination 639: Categorical Exclusion Determination CX-003639: Categorical Exclusion Determination Salt Disposition Integration Portfolio (SDIP) Phase 2 Testing CX(s) Applied: B3.6 Date: 07/30/2010 Location(s): Aiken, South Carolina Office(s): Savannah River Operations Office This task will dissolve 566.3 kilograms of sodium nitrate in distilled (DI) water to a volume of 1041 liters in each of four batches to be produced sequentially per a Research and Development (R&D) Direction in 786-A for the Salt Disposition Integration Portfolio (SDIP) Phase 2 Testing using the same apparatus as EEC Number TC-A-2010-035 located inside a secondary containment. This material will be stored in 300 gallon totes purchased for this purpose and stored in a secondary containment until the SDIP Test

242

CX-002104: Categorical Exclusion Determination | Department of Energy  

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

2104: Categorical Exclusion Determination 2104: Categorical Exclusion Determination CX-002104: Categorical Exclusion Determination Street Light and Signal Relamping CX(s) Applied: B5.1 Date: 04/19/2010 Location(s): Shelburne, Vermont Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant for: The Chittenden County Regional Planning Commission is focused on Energy Efficient Lighting. The Town of Shelburne is proposing to work with Green Mountain Power Company to replace 181 existing mercury vapor and sodium vapor municipal lights with light-emitting diode (LED) lights. Currently, the 181 lights that will be replaced use an estimated 107,427 kilowatt-hours (kWh) of electricity annually. The replacement LED heads will use an estimated 29,565 kWh of electricity providing a decrease of 77,862 kWh of electricity per year. The

243

CX-003969: Categorical Exclusion Determination | Department of Energy  

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

9: Categorical Exclusion Determination 9: Categorical Exclusion Determination CX-003969: Categorical Exclusion Determination Mobile Plutonium Facility (MPF); Set Up and Test Thermogravimetric Analyzer CX(s) Applied: B3.1 Date: 08/19/2010 Location(s): Aiken, South Carolina Office(s): Savannah River Operations Office The Mobile Plutonium Facility (MPF) glovebox process will require the use of a thermogravimetric analyzer (TGA). A mock up of the MPF gloveboxes has been built in 751-1A. There is a need to set up the TGA in both the mock up facility and in the MPF to ensure the equipment is functional and provide training to those who will use the equipment in the future. A Perkin-Elmer STA-6000 TGA will be installed using vendor supplied information. Standard materials such as gypsum and sodium bicarbonate may be used for process

244

CX-005520: Categorical Exclusion Determination | Department of Energy  

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

20: Categorical Exclusion Determination 20: Categorical Exclusion Determination CX-005520: Categorical Exclusion Determination Oregon-City-Beaverton CX(s) Applied: A1, B2.5, B5.1 Date: 03/30/2011 Location(s): Beaverton, Oregon Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant. 1) Create a revolving loan fund for homeowners to make energy efficient upgrades; 2) energy efficiency retrofits at identified city facilities (City Hall, Beaverton Library, Operations (Public Works) Center, Community Center, and Resource Center) which includes replacing heating, ventilation, and air conditioning (HVAC) units, tune-up of HVAC units, install carbon dioxide demand based ventilation controls, install variable frequency drives, and replacing chiller/boiler motors; 3) retrofit high pressure sodium street lights with

245

CX-000089: Categorical Exclusion Determination | Department of Energy  

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

0089: Categorical Exclusion Determination 0089: Categorical Exclusion Determination CX-000089: Categorical Exclusion Determination Milford's Replacement of?Existing Street Lighting with LED (Light-Emitting Diode) Lights CX(s) Applied: B5.1, B1.3 Date: 11/19/2009 Location(s): Milford, Delaware Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant Program. The City of Milford Electric Department will be replacing (60) sixty existing high pressure sodium 175 watt metal halide lights to energy efficient 100 watt LED (light-emitting diode) lights in the downtown Milford area. This lighting change will save the City of Milford approximately $2,381.00 per year, plus an estimated reduction of 47,748 pounds of carbon dioxide equivalents. This is just a beginning initiative to improve the environmental quality for the

246

CX-007368: Categorical Exclusion Determination | Department of Energy  

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

68: Categorical Exclusion Determination 68: Categorical Exclusion Determination CX-007368: Categorical Exclusion Determination Arizona-City-Avondale CX(s) Applied: A1, A9, A11, B1.32, B2.5, B5.1 Date: 11/22/2011 Location(s): Arizona Offices(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant Program. 1) Hire auditors to conduct energy audits of older city buildings; 2) permit fee credit for solar/wind energy systems; 3) rebate/incentive program for homeowners to make energy efficiency improvements; 4-5) replace high pressure sodium lights with LED fixtures; 6) host public fair to educate the community about energy efficiency; 7) LEED training for development services staff; 8) solar power purchase agreement; 9) renovate/retrofits to City Hall Building (>50 years)- heating, ventilation and air conditioning (HVAC)

247

CX-004800: Categorical Exclusion Determination | Department of Energy  

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

00: Categorical Exclusion Determination 00: Categorical Exclusion Determination CX-004800: Categorical Exclusion Determination Energy Conservation Programs in Transportation - City of Kinston CX(s) Applied: B5.1 Date: 12/21/2010 Location(s): Kinston, North Carolina Office(s): Energy Efficiency and Renewable Energy, Golden Field Office The City of Kinston proposes to use $499,500 of Energy Efficiency and Conservation Block Grant funding to replace 740 high-pressure sodium and mercury streetlights with 740 light-emitting diode streetlights. The city operates and maintains a total of 2,074 streetlights, so this project represents over a third of their total lights. By replacing these lights, the City's savings per year for kilowatt hours (kWh) is approximately 888,888 kWh or $200,000 per year with the street lights.

248

Water Content and Buildup of Poly(diallyldimethylammonium chloride)/ Poly(sodium 4-styrenesulfonate) and Poly(allylamine hydrochloride)/ Poly(sodium 4-styrenesulfonate) Polyelectrolyte Multilayers Studied by an in Situ Combination of a Quartz Crystal Micr  

E-Print Network [OSTI]

ABSTRACT: The buildup of polyelectrolyte multilayers (PEMs), fabricated by the layer-by-layer (LBL) assembly, was followed in situ by the combination of a quartz crystal microbalance with dissipation monitoring (QCM-D) and spectroscopic ellipsometry in a single device. PEMs composed of poly(allylamine hydrochloride) (PAH) and poly(sodium 4-styrenesulfonate) (PSS) polyelectrolyte pairs and of poly-(diallyldimethyl ammonium chloride) (PDADMAC) and PSS were built up to 17 layers. The combination of ellipsometry andQCM-D allowed simultaneous determination of the acousticmass, which comprises both the mass of the polymer and solvent, and the optical mass which corresponds to the polymer mass alone. From these parameters, the hydration of the PEMwas calculated layer by layer. The linearly growing PAH/ PSS PEMs showed a constant absolute content of water throughout the assembly, while the relative contribution of water to the PEM mass content approached zero, when grown in 0.5 M NaCl. Rinses with water between polyelectrolyte deposition steps resulted in a hydration of approximately 40%. The supralinearly growing PDADMAC/PSS PEMs exhibited a remarkable dependence of the hydration on the polyelectrolyte that was deposited last. Implications for the mechanism of assembly of the PEMs are discussed.

Jagoba J. Iturri Ramos; Stefan Stahl; Ralf P. Richter; Sergio E. Moya

2010-01-01T23:59:59.000Z

249

Sodium alterations in isolated rat heart during cardioplegic arrest  

SciTech Connect (OSTI)

Triple-quantum-filtered (TQF) Na nuclear magnetic resonance (NMR) without chemical shift reagent is used to investigate Na derangement in isolated crystalloid perfused rat hearts during St. Thomas cardioplegic (CP) arrest. The extracellular Na contribution to the NMR TQF signal of a rat heart is found to be 73 {+-} 5%, as determined by wash-out experiments at different moments of ischemia and reperfusion. With the use of this contribution factor, the estimated intracellular Na ([Na{sup +}]{sub i}) TQF signal is 222 {+-} 13% of preischemic level after 40 min of CP arrest and 30 min of reperfusion, and the heart rate pressure product recovery is 71 {+-} 8%. These parameters are significantly better than for stop-flow ischemia: 340 {+-} 20% and 6 {+-} 3%, respectively. At 37{degrees}C, the initial delay of 15 min in [Na{sup +}]{sub i} growth occurs during CP arrest along with reduced growth later ({approximately}4.0%/min) in comparison with stop-flow ischemia ({approximately}6.7%/min). The hypothermia (21{degrees}C, 40 min) for the stop-flow ischemia and CP dramatically decreases the [Na{sup +}]{sub i} gain with the highest heart recovery for CP ({approximately}100%). These studies confirm the enhanced sensitivity of TQF NMR to [Na{sup +}]{sub i} and demonstrate the potential of NMR without chemical shift reagent to monitor [Na{sup +}]{sub i} derangements. 48 refs., 7 figs., 1 tab.

Schepkin, V.D.; Choy, I.O.; Budinger, T.F. [Lawrence Berkeley National Lab., CA (United States)

1996-12-01T23:59:59.000Z

250

CX-010033: Categorical Exclusion Determination | Department of...  

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

saturated solution of sodium sulfate submitted in a request to ECA via Scavenger Wastewater Checklist. CX-010033.pdf More Documents & Publications CX-010032: Categorical...

251

Liquid-Metal Electrode to Enable Ultra-Low Temperature Sodium-Beta Alumina Batteries for Renewable Energy Storage  

SciTech Connect (OSTI)

Metal electrodes have a high capacity for energy storage but have found limited applications in batteries because of dendrite formation and other problems. In this paper, we report a new alloying strategy that can significantly reduce the melting temperature and improve wetting with the electrolyte to allow the use of liquid metal as anode in sodium-beta alumina batteries (NBBs) at much lower temperatures (e.g., 95 to 175C). Commercial NBBs such as sodium-sulfur (Na-S) battery and sodium-metal halide (ZEBRA) batteries typically operate at relatively high temperatures (e.g., 300-350C) due to poor wettability of sodium on the surface of ?"-Al2O3. Our combined experimental and computational studies suggest that Na-Cs alloy can replace pure sodium as the anode material, which provides a significant improvement in wettability, particularly at lower temperatures (i.e., <200C). Single cells with the Na-Cs alloy anode exhibit excellent cycling life over those with pure sodium anode at 175 and 150C. The cells can even operate at 95C, which is below the melting temperature of pure sodium. These results demonstrate that NBB can be operated at ultra lower temperatures with successfully solving the wetting issue. This work also suggests a new strategy to use liquid metal as the electrode materials for advanced batteries that can avoid the intrinsic safety issues associated with dendrite formation on the anode.

Lu, Xiaochuan; Li, Guosheng; Kim, Jin Yong; Mei, Donghai; Lemmon, John P.; Sprenkle, Vincent L.; Liu, Jun

2014-08-01T23:59:59.000Z

252

Thermo-physical and structural studies of sodium zinc borovanadate glasses in the region of high concentration of modifier oxides  

SciTech Connect (OSTI)

Highlights: ? Highly modified sodium zinc borovanadate glasses. ? Structural model for borovanadate glasses. ? Network forming tendency of ZnO in borovanadate glasses. ? Fragility can be limited to NBO concentration in borovanadate glasses. -- Abstract: This paper reports investigation of Na{sub 2}O and ZnO modified borovanadate glasses in the highly modified regime of compositions. These glasses have been prepared by microwave route. Ultraviolet (UV) and visible, infrared (IR), Magic Angle Spinning Nuclear Magnetic Resonance (MAS NMR) and Electron Paramagnetic Resonance (EPR) spectroscopies have been used to characterize the speciation in the glasses. Together with the variation of properties such as molar volume and glass transition temperatures, spectroscopic data indicate that at high levels of modification, ZnO tends to behave like network former. It is proposed that the observed variation of all the properties can be reasonably well understood with a structural model. The model considers that the modification and speciation in glasses are strongly determined by the hierarchy of group electronegativities. Further, it is proposed that the width of the transitions of glasses obtained under same condition reflects the fragility of the glasses. An empirical expression has been suggested to quantify fragility on the basis of width of the transition regions.

Chethana, B.K. [Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012 (India)] [Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012 (India); Reddy, C. Narayana [Maharani's Science College for Women, Bangalore 560 001 (India)] [Maharani's Science College for Women, Bangalore 560 001 (India); Rao, K.J., E-mail: kalyajrao@yahoo.co.in [Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012 (India)

2012-07-15T23:59:59.000Z

253

ESS 2012 Peer Review - Advanced Sodium Battery - Joonho Koh, Materials & Systems Research  

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

Sodium Battery Sodium Battery Joonho Koh (jkoh@msrihome.com), Greg Tao (gtao@msrihome.com), Neill Weber, and Anil V. Virkar Materials & Systems Research, Inc., 5395 W 700 S, Salt Lake City, UT 84104 Company Introduction History  Founded in 1990 by Dr. Dinesh K. Shetty and Dr. Anil V. Virkar  Currently 11 employees including 5 PhDs  10,000 ft² research facility in Salt Lake City, Utah MSRI's Experience of Na Batteries Status of the Na Batteries Overall Project Description Goal Develop advanced Na battery technology for enhanced safety, reduced fabrication cost, and high-power performance Approach  Innovative cell design using stronger structural materials  Reduction of the fabrication cost using a simple and reliable processing technique

254

Fact Sheet: Sodium-Ion Batteries for Grid-Level Applications (October 2012)  

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

Aquion Energy, Inc. Aquion Energy, Inc. American Recovery and Reinvestment Act (ARRA) Sodium-Ion Batteries for Grid-Level Applications Demonstrating low-cost, grid-scale, ambient temperature sodium-ion batteries In June 2012, Aquion Energy, Inc. completed the testing and demonstration requirements for the U.S. Department of Energy's program with its low-cost, grid-scale, ambient temperature Aqueous Hybrid Ion (AHI) energy storage device. During the three-year project, Aquion manufactured hundreds of batteries and assemble them into high-voltage, grid-scale systems. This project helped them move their aqueous electrochemical energy storage device from bench-scale testing to pilot-scale manufacturing. The testing successfully demonstrated a grid-connected, high voltage (>1,000 V), 13.5 kWh system with a 4-hour discharge.

255

Two-dimensional modeling of sodium boiling in a simulated LMFBR loss-of-flow test  

SciTech Connect (OSTI)

Loss-of-flow (LOF) accidents are of major importance in LMFBR safety. Tests have been performed to simulate the simultaneous failure of all primary pumps and reactor shutdown systems in a 37-pin electrically heated test bundle installed in the KNS sodium boiling loop at the Institute of Reactor Development, Karlsruhe. The tests simulated LOF conditions of the German prototype LMFBR, the SNR 300. The main objectives of these tests were to characterize the transient boiling development to cladding dryout and to provide data for validation of sodium boiling codes. One particular LOF test, designated L22, at full power was selected as a benchmark exercise for comparison of several codes at the Eleventh Meeting of the Liquid Metal Boiling Working Group (LMBWG) held in Grenoble, France, in October 1984. In this paper, the results of the calculations performed at ORNL with the two-dimensional (2-D) boiling code THORAX are presented.

Rose, S.D.

1984-01-01T23:59:59.000Z

256

Chapter 3 - Potential of Sodium-Sulfur Battery Energy Storage to Enable Further Integration of Wind  

Science Journals Connector (OSTI)

Abstract Wind generation is the leading alternative for environmentally responsible power generation and for energy independence in the future. However, wind power output cannot be controlled same as conventional generation, and wind is not necessarily available to serve peak load. In this chapter, the use of a Sodium Sulfur battery directly coupled with a wind farm to provide generation shifting for serving peak demand and for limiting the wind farm power output ramp-rate is discussed. Results from field operation of a 1 MW, 7.2 \\{MWh\\} Sodium Sulfur battery coupled with an 11.55 MW wind farm were provided to validate the batterys ability to successfully carry out both the tasks. It is shown that the two tasks could be combined to achieve maximum benefit. Value addition from shifting wind generation to on-peak is calculated and the optimal ratio storage to wind ratio is discussed.

Saurabh Tewari

2015-01-01T23:59:59.000Z

257

?-Conotoxin KIIIA Derivatives with Divergent Affinities versus Efficacies in Blocking Voltage-Gated Sodium Channels  

Science Journals Connector (OSTI)

Because of their facile chemical synthesis, KIIIA analogues that had as a core structure the disulfide-depleted KIIIA[C1A,C2U,C9A,C15U] (where U is selenocysteine) or ddKIIIA were used. ... Abbreviations: dap, diaminoproprionate; ddKIIIA, disulfide-depleted ?-conotoxin KIIIA, i.e., KIIIA[C1A,C2U,C9A,C5U], where U is selenocysteine; ddKIIIA[K7X], ddKIIIA with residue X in position 7; ddKIIIANaV, binary complex of ddKIIIA and NaV; ddKIIIA[K7X]NaV, binary complex of ddKIIIA[K7X] and NaV; ddKIIIA[K7X]TTXNaV, ternary complex of ddKIIIA[K7X], TTX, and NaV; GIIIA, ?-conotoxin GIIIA; INa, sodium current; KIIIA, ?-conotoxin KIIIA; KIIIA[K7A], ?-conotoxin KIIIA[K7A]; NaV, ?-subunit of the voltage-gated sodium channel; rINa, residual sodium current; TTX, tetrodotoxin; TTXNaV, binary complex of TTX and NaV; VGSC, voltage-gated sodium channel. ... The long moniker of ddKIIIA[K7X] is KIIIA[C1A,C2U,K7X,C9A,C15U], where residue X at position 7 was either Ala, Asp, Gly, Leu, Lys (i.e., ddKIIIA), Phe, Ser, Thr, Val, or diaminoproprionate (dap). ...

Min-Min Zhang; Tiffany S. Han; Baldomero M. Olivera; Grzegorz Bulaj; Doju Yoshikami

2010-05-11T23:59:59.000Z

258

The tolerance of two varieties of cotton to relatively high levels of sodium and magnesium  

E-Print Network [OSTI]

of MASTER OP SCIENCE August 1969 Major Subject Plant ~ph ~siolo THE TOLERANCE OF TvJO VARIETIES OF COTTON TO RELATIVELY HIGH LEVELS OF SODIUN AND NAGNESIUN A Thesis by Nanhar C. Parekh Approved as to style and content by: (Head of Department...) (Nember) (Nemb ) August 1969 ABSTRACT The Tolerance of Two Varieties of Cotton to Relatively High Levels of Sodium and Magnesium. (August 1969) Masher C. Parekh, B. S. , Gujarat University, Directed by: Dr. H. E. Joham An experiment was conducted...

Parekh, Manhar C

2012-06-07T23:59:59.000Z

259

The influence of dikegulac sodium on growth of Syngonium podophyllum 'White Butterfly'  

E-Print Network [OSTI]

facing producers of Syngonium podophy11um 'White Butterfly' along with the characteristics and potential of dikegulac sodium (Atrimmec, Maag Agrochemicals Inc. , Vera Beach, Fl) allowed for consideration of the following research objectives: 1... III DIKEGULAC CONCENTRATION, APPLICATION FREQUENCY AND MANUAL PINCHING STUDY ON TISSUE CULTURE PRODUCED LINERS Introduction Dikegulac (Atrimmec, Maag Agrochemicals Inc. , Vera Beach, Fl. ) is a carbohydrate derivative with plant growth regulative...

Womack, William Michael

2012-06-07T23:59:59.000Z

260

Comparative effects of sodium channel blockers in short term rat whole embryo culture  

SciTech Connect (OSTI)

This study was undertaken to examine the effect on the rat embryonic heart of two experimental drugs (AZA and AZB) which are known to block the sodium channel Nav1.5, the hERG potassium channel and the L-type calcium channel. The sodium channel blockers bupivacaine, lidocaine, and the L-type calcium channel blocker nifedipine were used as reference substances. The experimental model was the gestational day (GD) 13 rat embryo cultured in vitro. In this model the embryonic heart activity can be directly observed, recorded and analyzed using computer assisted image analysis as it responds to the addition of test drugs. The effect on the heart was studied for a range of concentrations and for a duration up to 3 h. The results showed that AZA and AZB caused a concentration-dependent bradycardia of the embryonic heart and at high concentrations heart block. These effects were reversible on washout. In terms of potency to cause bradycardia the compounds were ranked AZB > bupivacaine > AZA > lidocaine > nifedipine. Comparison with results from previous studies with more specific ion channel blockers suggests that the primary effect of AZA and AZB was sodium channel blockage. The study shows that the short-term rat whole embryo culture (WEC) is a suitable system to detect substances hazardous to the embryonic heart. - Highlights: Study of the effect of sodium channel blocking drugs on embryonic heart function We used a modified method rat whole embryo culture with image analysis. The drugs tested caused a concentration dependent bradycardia and heart block. The effect of drugs acting on multiple ion channels is difficult to predict. This method may be used to detect cardiotoxicity in prenatal development.

Nilsson, Mats F, E-mail: Mats.Nilsson@farmbio.uu.se [Department of Pharmaceutical Biosciences, Uppsala University (Sweden); Skld, Anna-Carin; Ericson, Ann-Christin; Annas, Anita; Villar, Rodrigo Palma [AstraZeneca R and D Sdertlje (Sweden); Cebers, Gvido [AstraZeneca R and D, iMed, 141 Portland Street, Cambridge, MA 02139 (United States); Hellmold, Heike; Gustafson, Anne-Lee [AstraZeneca R and D Sdertlje (Sweden); Webster, William S [Department of Anatomy and Histology, University of Sydney (Australia)

2013-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


261

Phase 2 THOR Steam Reforming Tests for Sodium Bearing Waste Treatment  

SciTech Connect (OSTI)

About one million gallons of acidic, hazardous, and radioactive sodium-bearing waste is stored in stainless steel tanks at the Idaho Nuclear Technology and Engineering Center (INTEC), which is a major operating facility of the Idaho National Engineering and Environmental Laboratory. Steam reforming is a candidate technology being investigated for converting the waste into a road ready waste form that can be shipped to the Waste Isolation Pilot Plant in New Mexico for interment. A steam reforming technology patented by Studsvik, Inc., and licensed to THOR Treatment Technologies has been tested in two phases using a Department of Energy-owned fluidized bed test system located at the Science Applications International Corporation (SAIC) Science and Technology Applications Research Center located in Idaho Falls, Idaho. The Phase 1 tests were reported earlier in 2003. The Phase 2 tests are reported here. For Phase 2, the process feed rate, stoichiometry, and chemistry were varied to identify and demonstrate process operation and product characteristics under different operating conditions. Two test series were performed. During the first series, the process chemistry was designed to produce a sodium carbonate product. The second series was designed to produce a more leach-resistant, mineralized sodium aluminosilicate product. The tests also demonstrated the performance of a MACT-compliant off-gas system.

Nicholas R. Soelberg

2004-01-01T23:59:59.000Z

262

Development of models for the two-dimensional, two-fluid code for sodium boiling NATOF-2D  

E-Print Network [OSTI]

Several features were incorporated into NATOF-2D, a twodimensional, two fluid code developed at M.I.T. for the purpose of analysis of sodium boiling transients under LMFBR conditions. They include improved interfacial mass, ...

Zielinski, R. G.

1981-01-01T23:59:59.000Z

263

Modelling of thermo-mechanical and irradiation behavior of metallic and oxide fuels for sodium fast reactors  

E-Print Network [OSTI]

A robust and reliable code to model the irradiation behavior of metal and oxide fuels in sodium cooled fast reactors is developed. Modeling capability was enhanced by adopting a non-empirical mechanistic approach to the ...

Karahan, Aydin

2009-01-01T23:59:59.000Z

264

A four-equation two-phase flow model for sodium boiling simulation of LMFBR fuel assemblies  

E-Print Network [OSTI]

A three-dimensional numerical model for the simulation of sodium boiling transients has been developed. The model uses mixture mass and energy equations, while employing a separate momentum equation for each phase. Thermal ...

Schor, Andrei L.

1982-01-01T23:59:59.000Z

265

Ruthenium(VI) catalyzed oxidation of sodium salts of lactic, tartaric and glycolic acid by alkaline hexacyanoferrate(III)  

Science Journals Connector (OSTI)

The kinetics of ruthenium(VI) catalyzed oxidation of sodium salts of lactic, tartaric and glycolic acid by hexacyanoferrate(III) in aqueous alkaline medium have been studied at constant ionic strength. The rea...

P. Kumar; K. C. Gupta; K. Vehari

1985-01-01T23:59:59.000Z

266

Mechanical relaxation behavior of polyurethanes reinforced with the in situ-generated sodium silica-polyphosphate nanophase  

E-Print Network [OSTI]

Further exploration of hybrid organic/inorganic composites (polyurethane based with inorganic material sodium silica polyphosphate) properties with mechanical relaxometer gives ability to analyze microstructure of such materials in terms of chain reptation tubes filler's fractal aggregates and stress amplification.

V. O. Dupanov; S. M. Ponomarenko

2014-10-31T23:59:59.000Z

267

Integrated fuel performance and thermal-hydraulic sub-channel models for analysis of sodium fast reactors  

E-Print Network [OSTI]

Sodium Fast Reactors (SFR) show promise as an effective way to produce clean safe nuclear power while properly managing the fuel cycle. Accurate computer modeling is an important step in the design and eventual licensing ...

Fricano, Joseph William

2012-01-01T23:59:59.000Z

268

Technical Information on the Carbonation of the EBR-II Reactor, Summary Report Part 2: Application to EBR-II Primary Sodium System and Related Systems  

SciTech Connect (OSTI)

Residual sodium is defined as sodium metal that remains behind in pipes, vessels, and tanks after the bulk sodium metal has been melted and drained from such components. The residual sodium has the same chemical properties as bulk sodium, and differs from bulk sodium only in the thickness of the sodium deposit. Typically, sodium is considered residual when the thickness of the deposit is less than 5-6 cm. This residual sodium must be removed or deactivated when a pipe, vessel, system, or entire reactor is permanently taken out of service, in order to make the component or system safer and/or to comply with decontamination and decomissioning regulations. As an alternative to the established residual sodium deactivation techniques (steam-and-nitrogen, wet vapor nitrogen, etc.), a technique involving the use of moisture and carbon dioxide has been developed. With this technique, sodium metal is converted into sodium bicarbonate by reacting it with humid carbon dioxide. Hydrogen is emitted as a by-product. This technique was first developed in the laboratory by exposing sodium samples to humidifed carbon dioxide under controlled conditions, and then demonstrated on a larger scale by treating residual sodium within the Experimental Breeder Reactor II (EBR-II) secondary cooling system, followed by the primary cooling system, respectively. The EBR-II facility is located at the Idaho National Laboratory (INL) in southeastern Idaho, USA. This report is Part 2 of a two-part report. This second report provides a supplement to the first report and describes the application of the humdidified carbon dioxide technique ("carbonation") to the EBR-II primary tank, primary cover gas systems, and the intermediate heat exchanger. Future treatment plans are also provided.

Steven R. Sherman; Collin J. Knight

2006-03-01T23:59:59.000Z

269

Assessment of Nuclear Safety Culture at the Idaho Cleanup Project Sodium Bearing Waste Treatment Project, November 2012  

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

Idaho Cleanup Project Idaho Cleanup Project Sodium Bearing Waste Treatment Project May 2011 November 2012 Office of Safety and Emergency Management Evaluations Office of Enforcement and Oversight Office of Health, Safety and Security U.S. Department of Energy Independent Oversight Assessment of Nuclear Safety Culture at the Idaho Cleanup Project Sodium Bearing Waste Treatment Project Table of Contents 1.0 Introduction........................................................................................................................................... 1 2.0 Scope and Methodology ....................................................................................................................... 2

270

Draft General Conformity Determination  

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

I I Draft General Conformity Determination U.S. Department of the Interior Minerals Management Service MMS Cape Wind Energy Project January 2009 Final EIS Appendix I Draft General Conformity Determination Draft General Conformity Determination Cape Wind Energy Project Prepared by Minerals Management Service Herndon, VA November 2008 i TABLE OF CONTENTS 1.0 INTRODUCTION TO THE PROPOSED ACTION............................................................... 1 2.0 GENERAL CONFORMITY REGULATORY BACKGROUND .......................................... 2 2.1 GENERAL CONFORMITY REQUIREMENTS.................................................................... 2 2.2 GENERAL CONFORMITY APPLICABILITY.....................................................................

271

Thermochemical cyclic system for decomposing H/sub 2/O and/or CO/sub 2/ by means of cerium-titanium-sodium-oxygen compounds  

DOE Patents [OSTI]

A thermochemical closed cyclic process for the decomposition of water and/or carbon dioxide to hydrogen and/or carbon monoxide begins with the reaction of ceric oxide (CeO/sub 2/), titanium dioxide (TiO/sub 2/) and sodium titanate (Na/sub 2/TiO/sub 3/) to form sodium cerous titanate (NaCeTi/sub 2/O/sub 6/) and oxygen. Sodium cerous titanate (NaCeTi/sub 2/O/sub 6/) reacted with sodium carbonate (Na/sub 2/CO/sub 3/) in the presence of steam, produces hydrogen. The same reaction, in the absence of steam, produces carbon monoxide. The products, ceric oxide and sodium titanate, obtained in either case, are treated with carbon dioxide and water to produce ceric oxide, titanium dioxide, sodium titanate, and sodium bicarbonate. After dissolving sodium bicarbonate from the mixture in water, the remaining insoluble compounds are used as starting materials for a subsequent cycle. The sodium bicarbonate can be converted to sodium carbonate by heating and returned to the cycle.

Bamberger, C.E.

1980-04-24T23:59:59.000Z

272

Thermochemical cyclic system for decomposing H.sub.2 O and/or CO.sub.2 by means of cerium-titanium-sodium-oxygen compounds  

SciTech Connect (OSTI)

A thermochemical closed cyclic process for the decomposition of water and/or carbon dioxide to hydrogen and/or carbon monoxide begins with the reaction of ceric oxide (CeO.sub.2), titanium dioxide (TiO.sub.2) and sodium titanate (Na.sub.2 TiO.sub.3) to form sodium cerous titanate (NaCeTi.sub.2 O.sub.6) and oxygen. Sodium cerous titanate (NaCeTi.sub.2 O.sub.6) reacted with sodium carbonate (Na.sub.2 CO.sub.3) in the presence of steam, produces hydrogen. The same reaction, in the absence of steam, produces carbon monoxide. The products, ceric oxide and sodium titanate, obtained in either case, are treated with carbon dioxide and water to produce ceric oxide, titanium dioxide, sodium titanate, and sodium bicarbonate. After dissolving sodium bicarbonate from the mixture in water, the remaining insoluble compounds are used as starting materials for a subsequent cycle. The sodium bicarbonate can be converted to sodium carbonate by heating and returned to the cycle.

Bamberger, Carlos E. (Oak Ridge, TN)

1982-01-01T23:59:59.000Z

273

Determining orientation and direction of DNA sequences  

DOE Patents [OSTI]

Determining orientation and direction of DNA sequences. A method by which fluorescence in situ hybridization can be made strand specific is described. Cell cultures are grown in a medium containing a halogenated nucleotide. The analog is partially incorporated in one DNA strand of each chromatid. This substitution takes place in opposite strands of the two sister chromatids. After staining with the fluorescent DNA-binding dye Hoechst 33258, cells are exposed to long-wavelength ultraviolet light which results in numerous strand nicks. These nicks enable the substituted strand to be denatured and solubilized by heat, treatment with high or low pH aqueous solutions, or by immersing the strands in 2.times.SSC (0.3M NaCl+0.03M sodium citrate), to name three procedures. It is unnecessary to enzymatically digest the strands using Exo III or another exonuclease in order to excise and solubilize nucleotides starting at the sites of the nicks. The denaturing/solubilizing process removes most of the substituted strand while leaving the prereplication strand largely intact. Hybridization of a single-stranded probe of a tandem repeat arranged in a head-to-tail orientation will result in hybridization only to the chromatid with the complementary strand present.

Goodwin, Edwin H. (Los Alamos, NM); Meyne, Julianne (Los Alamos, NM)

2000-01-01T23:59:59.000Z

274

Evaluation of lithium as a toxicant and the modifying effect of sodium  

SciTech Connect (OSTI)

Routine compliance tests conducted for a groundwater treatment facility at the Y-12 Plant on the Department of Energy`s (DOE) Oak Ridge Reservation (ORR), TN, showed that the effluent was acutely toxic to Ceriodaphnia dubia and fathead minnow (Pimephales promelas) larvae. An evaluation of suspected contaminants revealed that increased toxicity coincided with increased concentrations of lithium. Lithium is a light, strong metal that is used in DOE operations, including fusion weapons and fission reactors. Little has been published about lithium toxicity. Toxicity tests were conducted with fathead minnows and C. dubia using lithium chloride and lithium tetraborate. Dilute mineral water (DMW) or the receiving stream water (East Fork Poplar Creek) was used as the dilution water in the toxicity evaluation. A concentration of 1 mg Li/L in DMW reduced the survival of both test species; 0.5 mg Li/L in DMW reduced C. dubia reproduction and minnow growth. Sodium appears to influence the toxicity of Li; the metal was six times more toxic in the low-sodium DMW than in stream water containing 30 mg Na/L. Tests with LiCl in combination with NaCl and NA{sub 2}SO{sub 4} demonstrated that the presence of sodium reduced the toxicity of Li to C. dubia. In laboratory tests with a snail (Elimia clavaeformis) common on the ORR, the feeding rate declined in 0.15 mg Li/L. Because Li has also been demonstrated to be toxic to several plant species, tests with LiCi were also conducted using buttercrunch lettuce (Lactuca saliva). The EC{sub 50} for seed growth after 8 d incubation was 37.5 mg Li/L. These findings are significant because of widespread industrial use and potential accumulation of Li in soils.

Kszos, L.A.; Stewart, A.J.; O`Reilly, S.E. [Oak Ridge National Lab., TN (United States)

1995-12-31T23:59:59.000Z

275

Tracers for monitoring the activity of sodium/glucose cotransporters in health and disease  

DOE Patents [OSTI]

Radiolabeled tracers for sodium/glucose cotransporters (SGLTs), their synthesis, and their use are provided. The tracers are methyl or ethyl pyranosides having an equatorial hydroxyl group at carbon-2 and a C 1 preferred conformation, radiolabeled with .sup.18F, .sup.123I, or .sup.124I, or free hexoses radiolabeled with .sup.18F, .sup.123I, or .sup.124. Also provided are in vivo and in vitro techniques for using these and other tracers as analytical and diagnostic tools to study glucose transport, in health and disease, and to evaluate therapeutic interventions.

Wright, Ernest M; Barrio, Jorge R; Hirayama, Bruce A; Kepe, Vladimir

2014-09-30T23:59:59.000Z

276

Sodium-sulfur battery development. Phase VB final report, October 1, 1981--February 28, 1985  

SciTech Connect (OSTI)

This report describes the technical progress made under Contract No. DE-AM04-79CH10012 between the U.S. Department of Energy, Ford Aerospace & Communications Corporations and Ford Motor Company, for the period 1 October 1981 through 28 February 1985, which is designated as Phase VB of the Sodium-Sulfur Battery Development Program. During this period, Ford Aerospace held prime technical responsibility and Ford Motor Company carried out supporting research. Ceramatec, Inc., was a major subcontractor to Ford Aerospace for electrolyte development and production.

NONE

1985-04-01T23:59:59.000Z

277

Measurement of Conduction-Electron-Spin Relaxation in Sodium, 14-20 K  

Science Journals Connector (OSTI)

Conduction-electron-spin relaxation in sodium has been measured in the liquid-hydrogen-temperature range 14-20 K. We believe we have successfully separated the contributions to the measured relaxation rate from the impurity, surface, and electron-phonon (intrinsic) mechanisms by working with samples of controlled geometry at low rf frequency (10 MHz). The temperature dependence of the intrinsic relaxation time agrees reasonably well with the Debye-model calculations of Yafet. In our samples the probability of relaxation per surface collision for an electron spin is on the order of 10-3.

S. -K. Wang and R. T. Schumacher

1973-11-01T23:59:59.000Z

278

SWAAM-LT: The long-term, sodium/water reaction analysis method computer code  

SciTech Connect (OSTI)

The SWAAM-LT Code, developed for analysis of long-term effects of sodium/water reactions, is discussed. The theoretical formulation of the code is described, including the introduction of system matrices for ease of computer programming as a general system code. Also, some typical results of the code predictions for available large scale tests are presented. Test data for the steam generator design with the cover-gas feature and without the cover-gas feature are available and analyzed. The capabilities and limitations of the code are then discussed in light of the comparison between the code prediction and the test data.

Shin, Y.W.; Chung, H.H.; Wiedermann, A.H. [Argonne National Lab., IL (United States); Tanabe, H. [Power Reactor and Nuclear Fuel Development Corp., Tokai, Ibaraki (Japan)

1993-01-01T23:59:59.000Z

279

Structure of Dense Sodium Di-2-Ethylsulfosuccinate/D2O/Decane Microemulsions  

Science Journals Connector (OSTI)

Small-angle neutron scattering is used to investigate the structure of single-phase AOT (sodium di-2-ethylsulfosuccinate)/D2O/decane microemulsions containing equal volumes of water and oil and a variable concentration of surfactant. Each scattered-neutron spectrum exhibits a pronounced interaction peak. As the volume fraction of AOT is increased from 0.18 to 0.42, the peak position shifts to larger values of Q, and the peak height diminishes. The spectra are consistent with an ordered droplet phase, as opposed to a bicontinuous structure.

Michael Kotlarchyk; Sow-Hsin Chen; John S. Huang; Mahn Won Kim

1984-08-27T23:59:59.000Z

280

Galvanic corrosion of structural aluminum coupled with mild steel in a dilute sodium dichromate electrolyte  

E-Print Network [OSTI]

or the requirement for' the deqr, e of MASTER OF SCIl-NCI= Jaruary IgiO Major Sub ect: Civii I. ngineering GALVANIC CORROSION GF STRUCTURAI. ALUMINUM COUPLED WITH MILD STI:EL IN A DILUTE SODIUii DICIIROMA1'E ELECTROLTTE A Thesis ROBERT FRANKLIN FORD, JR.... Approved as to style and content by: + ~J Co-Chairman of Commii:t C Co-Chair n of Committe~e Member+ I Head of D=p rtm t) Januar; IDIO ABSTRACT Calvanic Corrosion of Structural Aluminum Coup'led with Mild Steel in a Dilute Sodium Dichromate...

Ford, Robert Franklin

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
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281

Under-Sodium Viewing: A Review of Ultrasonic Imaging Technology for Liquid Metal Fast Reactors  

SciTech Connect (OSTI)

This current report is a summary of information obtained in the "Information Capture" task of the U.S. DOE-funded "Under Sodium Viewing (USV) Project." The goal of the multi-year USV project is to design, build, and demonstrate a state-of-the-art prototype ultrasonic viewing system tailored for periodic reactor core in-service monitoring and maintenance inspections. The study seeks to optimize system parameters, improve performance, and re-establish this key technology area which will be required to support any new U.S. liquid-metal cooled fast reactors.

Griffin, Jeffrey W.; Peters, Timothy J.; Posakony, Gerald J.; Chien, Hual-Te; Bond, Leonard J.; Denslow, Kayte M.; Sheen, Shuh-Haw; Raptis, Paul

2009-03-27T23:59:59.000Z

282

Thermal analysis for fuel handling system for sodium cooled reactor considering minor actinide-bearing metal fuel.  

SciTech Connect (OSTI)

The Advanced Burner Reactor (ABR) is one of the components of the Global Nuclear Energy Partnership (GNEP) used to close the fuel cycle. ABR is a sodium-cooled fast reactor that is used to consume transuranic elements resulting from the reprocessing of light water reactor spent nuclear fuel. ABR-1000 [1000 MW(thermal)] is a fast reactor concept created at Argonne National Laboratory to be used as a reference concept for various future trade-offs. ABR-1000 meets the GNEP goals although it uses what is considered base sodium fast reactor technology for its systems and components. One of the considerations of any fast reactor plant concept is the ability to perform fuel-handling operations with new and spent fast reactor fuel. The transmutation fuel proposed as the ABR fuel has a very little experience base, and thus, this paper investigates a fuel-handling concept and potential issues of handling fast reactor fuel containing minor actinides. In this study, two thermal analyses supporting a conceptual design study on the ABR-1000 fuel-handling system were carried out. One analysis investigated passive dry spent fuel storage, and the other analysis investigated a fresh fuel shipping cask. Passive dry storage can be made suitable for the ABR-1000 spent fuel storage with sodium-bonded metal fuel. The thermal analysis shows that spent fast reactor fuel with a decay heat of 2 kW or less can be stored passively in a helium atmosphere. The 2-kW value seems to be a reasonable and practical level, and a combination of reasonably-sized in-sodium storage followed by passive dry storage could be a candidate for spent fuel storage for the next-generation sodium-cooled reactor with sodium-bonded metal fuel. Requirements for the shipping casks for minor actinide-bearing fuel with a high decay heat level are also discussed in this paper. The shipping cask for fresh sodium-cooled-reactor fuel should be a dry type to reduce the reaction between residual moisture on fresh fuel and the sodium coolant. The cladding temperature requirement is maintained below the creep temperature limit to avoid any damage before core installation. The thermal analysis shows that a helium gas-filled cask can accommodate ABR-1000 fresh minor actinide-bearing fuel with 700-W decay heat. The above analysis results revealed the overall requirement for minor actinide-bearing metal fuel handling. The information is thought to be helpful in the design of the ABR-1000 and future sodium-cooled-reactor fuel-handling system.

Chikazawa, Y.; Grandy, C.; Nuclear Engineering Division

2009-03-01T23:59:59.000Z

283

Interim Action Determination  

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

Interim Action Determination Interim Action Determination Processing of Plutonium Materials from the DOE Standard 3013 Surveillance Program in H-Canyon at the Savannah River Site The Department of Energy (DOE) is preparing the Surplus Plutonium Disposition Supplemental Environmental Impact Statement (SPD SEIS, DOE/EIS-0283-S2). DOE is evaluating alternatives for disposition of non-pit plutonium that is surplus to the national

284

Enhancement of the inherent self-protection of the fast sodium reactor cores with oxide fuel  

SciTech Connect (OSTI)

With the development and research into the generation IV fast sodium reactors, great attention is paid to the enhancement of the core inherent self-protection characteristics. One of the problems dealt here is connected with the reduction of the reactivity margin so that the control rods running should not result in the core overheating and melting. In this paper we consider the possibilities of improving the core of BN-1200 with oxide fuel by a known method of introducing an axial fertile layer into the core. But unlike earlier studies this paper looks at the possibility of using such a layer not only for improving breeding, but also for reducing sodium void reactivity effect (SVRE). This proposed improvement of the BN-1200 core does not solve the problem of strong interference in control and protection system (CPS) rods of BN-1200, but they reduce significantly the reactivity margin for burn-up compensation. This helps compensate all the reactivity balances in the improved core configurations without violating constraints on SVRE value.

Eliseev, V.A.; Malisheva, I.V.; Matveev, V.I.; Egorov, A.V.; Maslov, P.A. [SSC RF - IPPE, Obninsk, Kaluga region (Russian Federation)

2013-07-01T23:59:59.000Z

285

Further Investigations of the Effect of Replacing Lithium by Sodium on Lithium Silicate Scintillating Glass Efficiency  

SciTech Connect (OSTI)

Ce3+ doped lithium (6Li) silicate glasses are thermal neutron detectors. Prior work showed that when sodium (Na) is substituted for Li the scintillation efficiency, under beta particle stimulation, increased and then decreased as the sodium (Na) content was increased [1]. When all the 6Li was replaced by Na no scintillation was observed. Raman spectra, acquired using a visible excitation source provided no evidence of anomalous behavior. SEM microscopy did show some phase separation, but there was no obvious correlation with the scintillation efficiency. We have reexamined these glass samples using deep UV Raman excitation which reduces fluorescence interference. The newly acquired spectra show evidence of phase separation in the glasses. Specifically we see a peak at 800 cm-1 Raman shift which can be assigned to a vitreous silica moiety that results from phase separation. There is a strong correlation between this peak's area, the scintillation efficiency, and the Na content. The observed trend suggests that phase separation enhances scintillation and addition of Na reduces the amount of phase separation. We also see evidence of at least two defect structures that can be tentatively assigned to a three-membered ring structure and an oxygen vacancy. The latter is fairly strongly correlated with enhanced scintillation efficiency.

Bliss, Mary; Aker, Pamela M.; Windisch, Charles F.

2012-02-15T23:59:59.000Z

286

CX-003578: Categorical Exclusion Determination | Department of...  

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

is to re-design the pole spacing between businesses, replacing wooden poles with Fiber Glass, eliminating 10 percent of the poles and installing sodium vapor lights. The existing...

287

Determining age of whales  

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

Determining age of whales Determining age of whales Name: Bruce W Walkey Age: N/A Location: N/A Country: N/A Date: N/A Question: While browsing through the Internet, I came upon a question by two fifth grade students. Their question got me thinking and now I pose it to you. How can you determine the age of whales? Since they are mammals, can the methods that are used on humans be used on whales? What are some tests that can be done on bones or tissues to determine age? Looking forward to your reply. Replies: Although it is difficult to determine the age of whales (unless they are born in captivity and we know their birth date), several methods have been commonly used: 1) (if female) the examination of the ovaries 2) Examination of the ridges on baleen, which are not uniform in size and analogous to tree rings. The problem with this is that baleen wears away over time. 3) Studying layers of ossification in an ear bone is probably the most accurate method of aging, since internal bones don't wear away. The biggest problem with aging methods is that they usually require that you are dissecting the animal, and often, we would like a method of aging for live active animals. The best we can do here is to compare the size and markings of whales of known age to those found in the wild. Great question!

288

Analytical methods for determining the reactivity of pyrochemical salts  

SciTech Connect (OSTI)

Pyrochemical processes used for the purification of plutonium have generated quantities of residue that contain varying amounts of reactive metals such as potassium, sodium, calcium, and magnesium. These residues are currently considered hazardous and are being managed under RCRA because of the reactivity characteristic. This designation is based solely on process knowledge. Currently there is no approved procedure for determining the reactivity of a solid with water. A method is being developed to rapidly evaluate the reactivity of pyrochemical salts with water by measuring the rate of hydrogen generation. The method was initially tested with a magnesium containing pyrochemical salt. A detection limit of approximately 0.004 g of magnesium was established. A surrogate molten salt extraction residue was also tested. Extrapolation of test data resulted in a hydrogen generation rate of 4.4 mg/(g min).

Phillips, A.G.; Stakebake, J.L.

1994-05-01T23:59:59.000Z

289

Calcium-Mediated Regulation of Proton-Coupled Sodium Transport - Final Report  

SciTech Connect (OSTI)

The long-term goal of our experiments was to understand mechanisms that regulate energy coupling by ion currents in plants. Activities of living organisms require chemical, mechanical, osmotic or electrical work, the energy for which is supplied by metabolism. Adenosine triphosphate (ATP) has long been recognized as the universal energy currency, with metabolism supporting the synthesis of ATP and the hydrolysis of ATP being used for the subsequent work. However, ATP is not the only energy currency in living organisms. A second and very different energy currency links metabolism to work by the movement of ions passing from one side of a membrane to the other. These ion currents play a major role in energy capture and they support a range of physiological processes from the active transport of nutrients to the spatial control of growth and development. In Arabidopsis thaliana (Arabidopsis), the activity of a plasma membrane Na+/H+ exchanger, SALT OVERLY SENSITIVE1 (SOS1), is essential for regulation of sodium ion homeostasis during plant growth in saline conditions. Mutations in SOS1 result in severely reduced seedling growth in the presence of salt compared to the growth of wild type. SOS1 is a secondary active transporter coupling movement of sodium ions out of the cell using energy stored in the transplasma membrane proton gradient, thereby preventing the build-up of toxic levels of sodium in the cytosol. SOS1 is regulated by complexes containing the SOS2 and CALCINEURIN B-LIKE10 (CBL10) or SOS3 proteins. CBL10 and SOS3 (also identified as CBL4) encode EF-hand calcium sensors that interact physically with and activate SOS2, a serine/threonine protein kinase. The CBL10/SOS2 or SOS3/SOS2 complexes then activate SOS1 Na+/H+ exchange activity. We completed our studies to understand how SOS1 activity is regulated. Specifically, we asked: (1) how does CBL10 regulate SOS1 activity? (2) What role do two putative CBL10-interacting proteins play in SOS1 regulation? (3) Are there differences in the regulation and/or activity of SOS1 in plants differing in their adaptation to salinity?

Schumaker, Karen S [Professor] [Professor

2013-10-24T23:59:59.000Z

290

Gender determination in populus  

SciTech Connect (OSTI)

Gender, the expression of maleness or femaleness, in dioecious plants has been associated with changes in morphology, physiology, ecological position, and commercial importance of several species, including members of the Salicaceae family. Various mechanisms have been proposed to explain the expression of gender in Salicaceae, including sex chromosomes, simple Mendelian genes, quantitative genes, environment, and genotype-by-environment interactions. Published reports would favor a genetic basis for gender. The objective of this study was to identify molecular markers associated with gender in a segregating family of hybrid poplars. Bulked segregant analysis and chi-squared analysis were used to test for the occurrence of sex chromosomes, individual loci, and chromosome ratios (i.e., ploidy levels) as the mechanisms for gender determination. Examination of 2488 PCR based RAPD markers from 1219 primers revealed nine polymorphic bands between male and female bulked samples. However, linkage analysis indicated that none of these markers were significantly associated with gender. Chisquared results for difference in male-to-female ratios between diploid and triploid genotypes also revealed no significant differences. These findings suggest gender is not controlled via sex chromosomes, simple Mendelian loci or ratios of autosome to gender-determining loci. It is possible that gender is determined genetically by regions of the genome not sampled by the tested markers or by a complex of loci operating in an additive threshold manner or in an epistatic manner. It is also possible that gender is determined environmentally at an early zygote stage, canalizing gender expression.

McLetchie, D.N. [Univ. of Kentucky, Lexington, KY (United States). Dept. of Biological Sciences; Tuskan, G.A. [Oak Ridge National Lab., TN (United States)

1994-12-31T23:59:59.000Z

291

Go/No-Go Recommendation for Sodium Borohydride for On-Board Vehicular Hydrogen Storage  

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

MP-150-42220 MP-150-42220 U. S. Department of Energy Hydrogen Program Go/No-Go Recommendation for Sodium Borohydride for On-Board Vehicular Hydrogen Storage National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a U. S. Department of Energy Laboratory operated by Midwest Research Institute and Battelle Contract No. DE-AC36-98-GO10337 I I n n d d e e p p e e n n d d e e n n t t R R e e v v i i e e w w November 2007 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or

292

Sodium Loop Safety Facility W-2 experiment fuel pin rupture detection system. [LMFBR  

SciTech Connect (OSTI)

The objective of the Sodium Loop Safety Facility (SLSF) W-2 experiment is to characterize the combined effects of a preconditioned full-length fuel column and slow transient overpower (TOP) conditions on breeder reactor (BR) fuel pin cladding failures. The W-2 experiment will meet this objective by providing data in two technological areas: (1) time and location of cladding failure, and (2) early post-failure test fuel behavior. The test involves a seven pin, prototypic full-length fast test reactor (FTR) fuel pin bundle which will be subjected to a simulated unprotected 5 cents/s reactivity transient overpower event. The outer six pins will provide the necessary prototypic thermal-hydraulic environment for the center pin.

Hoffman, M.A.; Kirchner, T.L.; Meyers, S.C.

1980-05-01T23:59:59.000Z

293

W-1 Sodium Loop Safety Facility experiment centerline fuel thermocouple performance. [LMFBR  

SciTech Connect (OSTI)

The W-1 Sodium Loop Safety Facility (SLSF) experiment is the fifth in a series of experiments sponsored by the Department of Energy (DOE) as part of the National Fast Breeder Reactor (FBR) Safety Assurance Program. The experiments are being conducted under the direction of Argonne National Laboratory (ANL) and Hanford Engineering Development Laboratory (HEDL). The irradiation phase of the W-1 SLSF experiment was conducted between May 27 and July 20, 1979, and terminated with incipient fuel pin cladding failure during the final boiling transient. Experimental hardware and facility performed as designed, allowing completion of all planned tests and test objectives. This paper focuses on high temperature in-fuel thermocouples and discusses their development, fabrication, and performance in the W-1 experiment.

Meyers, S.C.; Henderson, J.M.

1980-05-01T23:59:59.000Z

294

Two-dimensional modeling of sodium boiling transients in simulated LMFBR fuel bundles  

SciTech Connect (OSTI)

A two-dimensional code for analysis of sodium boiling in LMFBR fuel assemblies has been developed at ORNL. This code, THORAX, has been used to analyze tests in 19- and 61-pin electrically-heated, simulated LMFBR fuel assemblies in the THORS facility. THORAX has simulated well the transient growth of the two-dimensional boiling region and the resulting static flow instability leading to dryout. Extrapolation of results to a full size fuel pin bundle shows that two-dimensional effects are reduced but still significant. The code will be extended to include a loop model in support of forthcoming tests in the THORS-SHRS Assembly 1 loop, which will include two parallel 19-pin simulated driver bundles.

Rose, S.D.; Dearing, J.F; Carbajo, J.J.; Levin, A.E.; Montgomery, B.H.; Wantland, J.L.

1982-01-01T23:59:59.000Z

295

RELY: A reliability modeling system for analysis of sodium-sulfur battery configurations  

SciTech Connect (OSTI)

In support of the Office of Energy Storage and Distribution of the US Department of Energy (DOE), Pacific Northwest Laboratory has produced a microcomputer-based software package, called RELY, to assess the impact of sodium-sulfur cell reliability on constant current discharge battery performance. The Fortran-based software operates on IBM microcomputers and IBM-compatibles that have a minimum of 512K of internal memory. The software package has three models that provide the following: (1) a description of the failure distribution parameters used to model cell failure, (2) a Monte Carlo simulation of battery life, and (3) a detailed discharge model for a user-specified battery discharge cycle. 6 refs., 31 figs., 4 tabs.

Hostick, C.J.; Huber, H.D.; Doggett, W.H.; Dirks, J.A.; Dovey, J.F.; Grinde, R.B.; Littlefield, J.S.; Cuta, F.M.

1987-06-01T23:59:59.000Z

296

Sodium pumps adapt spike bursting to stimulus Sara Arganda1,2,4, Raul Guantes1,3,4 & Gonzalo G de Polavieja1,2  

E-Print Network [OSTI]

Sodium pumps adapt spike bursting to stimulus statistics Sara Arganda1,2,4, Rau´l Guantes1,3,4 & Gonzalo G de Polavieja1,2 Pump activity is a homeostatic mechanism that maintains ionic gradients. Here we examined whether the slow reduction in excitability induced by sodium-pump activity that has been seen

Guantes, Raúl

297

Computer Simulation of Diffusion of Pb-Bi Eutectic in Liquid Sodium by Molecular Dynamics Method  

SciTech Connect (OSTI)

Lead-bismuth eutectic is a potential candidate for coolant of secondary loops of sodium-cooled fast breeder reactors (FBR). The studies on the diffusion of liquid Pb-Bi in liquid Na are carried out corresponding to the case that liquid Pb-Bi leaks to liquid Na by accident. As the diffusion processes are the results of atomic motions, molecular dynamics method has been used to study the diffusion process. The self-diffusion coefficients of pure liquid Pb and Na, and liquid Pb-Bi are calculated and compared with ones by the empirical equations. The discrepancy between them could be eliminated by changing the densities of the liquids. The diffusion of lead-bismuth in sodium is simulated based on the changed densities under which the self-diffusion coefficients of individual liquid metals are close to those by the empirical equations. The simulation results show that the diffusion process of liquid Pb-Bi in liquid Na is a heat releasing process and the density of ternary liquid Na-Pb-Bi is higher than the average value of the densities of liquid Na and liquid Pb-Bi. It is also found that the diffusion coefficients of liquid Pb-Bi in liquid Na are much higher than their self-diffusion coefficients, indicating that liquid Pb-Bi are easy and quickly to diffuse in liquid Na. However, the diffusion coefficient of liquid Na is decreased due to the existence of liquid Pb-Bi, implying that liquid Na-Pb-Bi have a higher viscosity than that of pure liquid Na. (authors)

Yingxia Qi; Minoru Takahashi [Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550 (Japan)

2002-07-01T23:59:59.000Z

298

Sodium reflux pool-boiler solar receiver on-sun test results  

SciTech Connect (OSTI)

The efficient operation of a Stirling engine requires the application of a high heat flux to the relatively small area occupied by the heater head tubes. Previous attempts to couple solar energy to Stirling engines generally involved directly illuminating the heater head tubes with concentrated sunlight. In this study, operation of a 75-kW{sub t} sodium reflux pool-boiler solar receiver has been demonstrated and its performance characterized on Sandia's nominal 75-kW{sub t} parabolic-dish concentrator, using a cold-water gas-gap calorimeter to simulate Stirling engine operation. The pool boiler (and more generally liquid-metal reflux receivers) supplies heat to the engine in the form of latent heat released from condensation of the metal vapor on the heater head tubes. The advantages of the pool boiler include uniform tube temperature, leading to longer life and higher temperature available to the engine, and decoupling of the design of the solar absorber from the engine heater head. The two-phase system allows high input thermal flux, reducing the receiver size and losses, therefore improving system efficiency. The receiver thermal efficiency was about 90% when operated at full power and 800{degree}C. Stable sodium boiling was promoted by the addition of 35 equally spaced artificial cavities in the wetted absorber surface. High incipient boiling superheats following cloud transients were suppressed passively by the addition of small amounts of xenon gas to the receiver volume. Stable boiling without excessive incipient boiling superheats was observed under all operating conditions. The receiver developed a leak during performance evaluation, terminating the testing after accumulating about 50 hours on sun. The receiver design is reported here along with test results including transient operations, steady-state performance evaluation, operation at various temperatures, infrared thermography, x-ray studies of the boiling behavior, and a postmortem analysis.

Andraka, C E; Moreno, J B; Diver, R B; Moss, T A [Oak Ridge National Lab., TN (United States)] [Oak Ridge National Lab., TN (United States)

1992-06-01T23:59:59.000Z

299

Categorical Exclusion (CX) Determination  

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

North Oakes tap of the Edgeley to Forman 69 kV line North Oakes tap of the Edgeley to Forman 69 kV line Description of Proposed Action: Central Power Electric Cooperative is proposing to tap into the Western Area Power Administration (Western) Edgeley to Forman 69 kV transmission line with a new substation to meet load growth in the Southeastern North Dakota area. Number and Title of Categorical Exclusions Being Applied: 10 CFR 1021.410 Subpart D, Appendix B, B4.11: Construction of electric power substations ... or modification of existing substations and support facilities. Regulatory Requirements for CX Determination: The DOE Guidelines for Compliance with the Regulatory Requirements for the National Environmental Policy Act at 10 CFR 1021.410(b), require the following determinations be made in order for a proposed action to be categorically

300

NEWTON: Determining Material Degradation  

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

Determining Material Degradation Determining Material Degradation Name: Hamish Status: student Grade: 6-8 Location: CA Country: USA Date: Summer 2013 Question: I am working on a science project about photo-degradation of plastic film. My question is how much degraded a plastic film should be to say that it was 100% photo-degraded? The plastic film I am photo-degrading is turning into dust when I touch it, what level of degradation is that? Replies: Hi Hamish, Thanks for the question. You will need to define what you mean by photo-degraded. 100% photo-degraded could be that the film becomes translucent and lets through only blurry images. Or it could mean that the film turns to dust when you touch it. As long as you clearly state in your science project what you mean by 100% photo-degraded, you will be doing a good job.

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Categorical Exclusion (CX) Determination  

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

Circle substation expansion Circle substation expansion Description of Proposed Action: Expansion of the Circle substation approximately 4 acres to the south for the purpose of adding additional bays for the Keystone XL pipeline project. Number and Title of Categorical Exclusions Being Applied: 10 CFR 1021.410 Subpart D, Appendix B, B4.11: Construction of electric power substations ... or modification of existing substations and support facilities. Regulatory Requirements for CX Determination: The DOE Guidelines for Compliance with the Regulatory Requirements for the National Environmental Policy Act at 10 CFR 1021.410(b), require the following determinations be made in order for a proposed action to be categorically excluded from National Environmentally Policy Act (NEPA) review:

302

Categorical Exclusion (CX) Determination  

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

Addition of a new substation near Lake Bowdoin, MT. Addition of a new substation near Lake Bowdoin, MT. Description of Proposed Action: Addition of a new substation near Lake Bowdoin on Western's Fort Peck to Havre 161 k V transmission line for the purpose of providing power for a Keystone XL pipeline project pump station. Number and Title of Categorical Exclusions Being Applied: 10 CFR 1021.410 Subpart D, Appendix B, B4.11: Construction of electric power substations ... or modification of existing substations and support facilities. Regulatory Requirements for CX Determination: The DOE Guidelines for Compliance with the Regulatory Requirements for the National Environmental Policy Act at 10 CFR 1021.41 O(b), require the following determinations be made in order for a proposed action to be categorically

303

Mercury Lamps Recycling Fluorescent light-tubes, compact fluorescent bulbs, mercury and sodium vapor lamps, ultraviolet and  

E-Print Network [OSTI]

Mercury Lamps Recycling Fluorescent light-tubes, compact fluorescent bulbs, mercury and sodium vapor lamps, ultraviolet and HID (high-intensity discharge) lamps and all other mercury containing labeled for shipment to a recycling plant for mercury, glass and aluminum recovery. The beneficial re

Baker, Chris I.

304

F POWER MEASUREMENT FOR GENERATION IV SODIUM FAST R. COULON, S. NORMAND, M. MICHEL, L. BARBOT, T. DOMENECH,  

E-Print Network [OSTI]

.F-84500 Bollène, France. ABSTRACT The Phénix nuclear power plant has been a French Sodium Fast Reactor. Drift between the measured ex-core neutron flux and the instant released thermal power (fission rate the research of power tagging agents. Then, simulation study has been done to evaluate measurability using high

Boyer, Edmond

305

Tetrodotoxin binding sites in human heart and human brain sodium channels. Final report, 28 June 1991-27 June 1994  

SciTech Connect (OSTI)

Tetrodotoxin (TTX) and saxitoxin (STX) are potent and lethal threats to exposed soldiers. The development of an antidote or site-specific antibodies for low affinity TTX/STX cardiac sodium channels and high affinity TTX/STX brain and peripheral nerve sodium channels requires a data base not only of the primary structure of the toxin receptor site(s) but also insight into the secondary structures of these site(s). Five goals or tasks were attempted and the first three were completed. Full-length human cardiac and brain sodium channel cDNAs have been cloned and expressed as functional proteins in Xenopus oocytes. Silent restriction sites have been introduced around the pore or P-region of the Na+ channel repeats. Site-directed mutagenesis has identified critical residues in the pore from the primary structure involved in sensitivity to TTX and STX and other pore properties. Chemical modification of cysteine mutants of these initial residues by methanethiosulfonate compounds produces an expanded data base of the secondary structure of the toxins` receptors. Specific peptides which mimic these receptors will be made to compete with the natural receptor for the toxins. We have successfully cloned the cDNAs for both human heart and brain sodium channels and expressed functional proteins. The initial chemical modification data suggests file receptor sites for TTX/STX are not interchangeable and are not the same site.

Brown, A.M.; Hartmann, H.A.

1994-07-28T23:59:59.000Z

306

Aluminium alloy based hydrogen storage tank operated with sodium aluminium hexahydride Na3AlH6  

Science Journals Connector (OSTI)

Abstract Here we present the development of an aluminium alloy based hydrogen storage tank, charged with Ti-doped sodium aluminium hexahydride Na3AlH6. This hydride has a theoretical hydrogen storage capacity of 3mass-% and can be operated at lower pressure compared to sodium alanate NaAlH4. The tank was made of aluminium alloy EN AW 6082 T6. The heat transfer was realised through an oil flow in a bayonet heat exchanger, manufactured by extrusion moulding from aluminium alloy EN AW 6060 T6. Na3AlH6 is prepared from 4mol-% TiCl3 doped sodium aluminium tetrahydride NaAlH4 by addition of two moles of sodium hydride NaH in ball milling process. The hydrogen storage tank was filled with 213g of doped Na3AlH6 in dehydrogenated state. Maximum of 3.6g (1.7mass-% of the hydride mass) of hydrogen was released from the hydride at approximately 450K and the same hydrogen mass was consumed at 2.5MPa hydrogenation pressure. 45 cycle tests (rehydrogenation and dehydrogenation) were carried out without any failure of the tank or its components. Operation of the tank under real conditions indicated the possibility for applications with stationary HT-PEM fuel cell systems.

R. Urbanczyk; K. Peinecke; M. Felderhoff; K. Hauschild; W. Kersten; S. Peil; D. Bathen

2014-01-01T23:59:59.000Z

307

Small angle neutron scattering study of deuterated sodium dodecylsulfate micellization in dilute poly((2edimethylamino)ethyl methacrylate) solutions  

E-Print Network [OSTI]

Small angle neutron scattering study of deuterated sodium dodecylsulfate micellization in dilute 2010 Keywords: Poly((2edimethylamino)ethyl methacrylate) Micelle Small angle neutron scattering a b angle neutron scattering. We found three transitions of the poly ((2edimethylamino)ethyl methacrylate

Kofinas, Peter

308

Sodium-dependent transport of neutral amino acids by whole cells and membrane vesicles of Streptococcus bovis, a ruminal bacterium.  

Science Journals Connector (OSTI)

...diluted into either lithium or choline chloride...was inhibited by an excess of threonine, but...diluted into either lithium or choline chloride...was inhibited by an excess of threonine, but...choline chloride, lithium chloride, or sodium...presence of a 70-fold excess of nonlabeled L-threonine...

J B Russell; H J Strobel; A J Driessen; W N Konings

1988-08-01T23:59:59.000Z

309

Differential effects of sodium on hydrogen- and glucose-dependent growth of the acetogenic bacterium Acetogenium kivui.  

Science Journals Connector (OSTI)

...0.012i FIG. 3. Effects of sodium, lithium, and potassium on the H2d dependent growth...represent the amount of biomass formed in excess of the inoculum. d Growth after a 3-day...represent the amount of biomass formed in excess of the inoculum. c Acetate (millimolar...

H C Yang; H L Drake

1990-01-01T23:59:59.000Z

310

Second harmonic signal detection on Poly[2-L-alanine-3-nitrato-sodium (I)] crystals  

Science Journals Connector (OSTI)

Crystals of poly (L-alanine sodium nitrate) have been grown by the slow evaporation at room temperature method. Crystal sizes of 500mm and 10 mm were obtained. UV-vis spectrum shows a wide transparent window where lake of absorption around the 532 nm. ... Keywords: L- alanine, NLO, SHG, alanine, semiorganic

E. Gallegos-Loya; E. Alvarez Ramos; E. Regalado; A. Duarte-Moller

2010-08-01T23:59:59.000Z

311

Physiological responses to training and racing in two year-old Quarter Horses fed Sodium Zeolite A  

E-Print Network [OSTI]

) Table 82A Page Packed cell volume ('/0) at recovery 10 minutes in two- year-old Quarter Horses fed varying amounts of Sodium Zeolite A Table 83A. Packed cell volume (/o) at recovery 20 minutes in two- year-old Quarter Horses fed varying amounts...

Reynolds, Judith Amy Lundgren

2012-06-07T23:59:59.000Z

312

Partial Pressure of Saturated Sodium Nitrite Vapor over the System NaNO2-NaNO3  

Science Journals Connector (OSTI)

The partial pressure of sodium nitrite was measured in the system NaNO2-NaNO3...at temperatures of 798, 823, and 848 K and the logarithm of the NaNO2 pressure was obtained as a function of inverse temperature. Th...

V. I. Glazov; G. P. Dukhanin; M. Kh. Dkhaibe

2004-02-01T23:59:59.000Z

313

Mental Health, Determinants of  

Science Journals Connector (OSTI)

Abstract In this article, the authors first review differences between mental health and physical health conditions and explicitly consider how the health production function can be applied to mental health. They then review the research on the determinants of mental health, focusing on the contributions of economists to this literature. They focus on three important inputs to mental health production: income, macroeconomic conditions, and employment.

E. Golberstein; S.H. Busch

2014-01-01T23:59:59.000Z

314

Office of Legacy Management U.S. Department of Energy Categorical Exclusion Determination Form  

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

I. I. D. No.: Routine monitoring, maintenance, general site, and administrative actions at the Tuba City, Arizona, Site. LM No. 08-11. Location: Tuba City, Arizona Proposed Action or Project Description: This determination form provides the results of evaluating potential impacts related to routine monitoring of groundwater and extraction wells and actions related to well sampling, such as taking water level measurements. In addition, various maintenance activities may occur as scheduled and unscheduled actions. These may include remediation system upgrades or repairs, the installation or repair of site fences, potential repair of equipment related to the treatment system, and replenishment of sulfuric acid and sodium chloride as needed for the treatment system.

315

Sodium dodecyl benzene sulfonate-assisted synthesis through a hydrothermal reaction  

SciTech Connect (OSTI)

Graphical abstract: Reaction of a SeCl{sub 4} aqueous solution with a NiCl{sub 2}6H{sub 2}O aqueous solution in presence of sodium dodecyl benzene sulfonate (SDBS) as capping agent and hydrazine (N{sub 2}H{sub 4}H{sub 2}O) as reductant, produces nanosized nickel selenide through a hydrothermal method. The effect of temperature, reaction time and amounts of reductant on the morphology, particle sizes of NiSe nanostructures has been investigated. Highlights: ? NiSe nanostructures were synthesized by hydrothermal method. ? A novel Se source was used to synthesize NiSe. ? SDBS as capping agent plays a crucial role on the morphology of products. ? A mixture of Ni{sub 3}Se{sub 2} and NiSe was prepared in the presence of 2 ml hydrazine. ? A pure phase of NiSe was prepared in the presence of 4 or 6 ml hydrazine. -- Abstract: The effects of the anionic surfactant on the morphology, size and crystallization of NiSe precipitated from NiCl{sub 2}6H{sub 2}O and SeCl{sub 4} in presence of hydrazine (N{sub 2}H{sub 4}H{sub 2}O) as reductant were investigated. The products have been successfully synthesized in presence of sodium dodecyl benzene sulfonate (SDBS) as surfactant via an improved hydrothermal route. A variety of synthesis parameters, such as reaction time and temperature, capping agent and amount of reducing agent have a significant effect on the particle size, phase purity and morphology of the obtained products. The sample size became bigger with decreasing reaction temperature and increasing reaction time. In the presence of 2 ml hydrazine, the samples were found to be the mixture of Ni{sub 3}Se{sub 2} and NiSe. With increasing the reaction time and amount of hydrazine a pure phase of hexagonal NiSe was obtained. X-ray diffraction analysis (XRD), scanning electron microscope (SEM) and transmission electron microscopy (TEM) images indicate phase, particle size and morphology of the products. Chemical composition and purity of the products were characterized by X-ray energy dispersive spectroscopy (EDS). Photoluminescence (PL) was used to study the optical properties of NiSe samples.

Sobhani, Azam [Department of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, P.O. Box 8731751167, Islamic Republic of Iran (Iran, Islamic Republic of)] [Department of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, P.O. Box 8731751167, Islamic Republic of Iran (Iran, Islamic Republic of); Salavati-Niasari, Masoud, E-mail: salavati@kashanu.ac.ir [Department of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, P.O. Box 8731751167, Islamic Republic of Iran (Iran, Islamic Republic of) [Department of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, P.O. Box 8731751167, Islamic Republic of Iran (Iran, Islamic Republic of); Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P.O. Box 8731751167, Islamic Republic of Iran (Iran, Islamic Republic of)

2012-08-15T23:59:59.000Z

316

Categorical Exclusion (CX) Determination  

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

Letcher to Mitchell 115 kV transmission line to Western's Letcher to Mitchell 115 kV transmission line to Western's Letcher substation. Description of Proposed Action: Interconnection of Northwestern Energy's 115 kV Letcher to Mitchell transmission line at Western's Letcher substation. Northwestern Energy is proposing to build a 14.5 mile transmission line between their Mitchell substation and Western's Letcher substation to shore up reliability of their electrical system in the area. Number and Title of Categorical Exclusions Being Applied: 10 CFR 1021.410 Subpart D, Appendix B, B4.11: Construction of electric power substations ... or modification of existing substations and support facilities. Regulatory Requirements for CX Determination: The DOE Guidelines for Compliance with the Regulatory Requirements for the National Environmental Policy Act at 10 CFR 1021.41 O(b), require the

317

Categorical Exclusion (CX) Determination  

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

Movement of the Shirley Pump substation to a new site away from Movement of the Shirley Pump substation to a new site away from Yellowstone River and replacement of the Shirley Pump substation transformer. Description of Proposed Action: Move the existing Shirley Pump substation approximately 200 meters to the southeast away from its current location and the Yellowstone River as well as replace the aging transformer with a new one. Number and Title of Categorical Exclusions Being Applied: 10 CPR 1021.410 Subpart D, Appendix B, B4.11: Construction of electric power substations ... or modification of existing substations and support facilities. Regulatory Requirements for CX Determination: The DOE Guidelines for Compliance with the Regulatory Requirements for the National Environmental Policy Act at 10 CPR 1021.41 O(b),

318

Categorical Exclusion Determination Form  

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

t t Categorical Exclusion Determination Form Proposed Action Title: (0471-1563) University of South Florida - Development of a Low Cost Thermal Energy Storage System Using Phase Change Materials with Enhanced Radiation Heat Transfer Program or Field Office: Advanced Research Projects Agency - Energy Location(s) (City/County/State): Tampa, FL Proposed Action Description: Funding will support development of low cost, industrially scalable capsules containing high-temperature phase change materials (PCMs) for use in thermal energy storage (TES) systems to enable continuous power supply from concentrated solar thermal and nuclear power plants. No nuclear research and development activities will take place under this project. ARPA-E has undertaken a review of the work to be performed

319

Categorical Exclusion Determination Form  

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

n rgy n rgy Categorical Exclusion Determination Form Proposed Action Title: (0474-1555) University of Colorado - Boulder - Wafer-Level Sub-Module Integrated DCfDC Converter Program or Field Office: Advanced Research Projects Agency - Energy LocationCs) CCity/County/State): Colorado, Maine, Virginia Proposed Action Description: Funding will support development of a planar, wafer-level sub-module integrated converter (SubMIC) device that can be integrated into various types of photovoltaic (PV) modules to enable low-cost maximum power point tracking at high power processing efficiencies. Proposed work consists of indoor laboratory-based research and development (R&D), microfabrication activities, and analytical research, including: (1) simulated modeling and design of SubMIC components and integrated units, (2) development, fabrication, testing, and optimization

320

Categorical Exclusion Determination Form  

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

1537) Utah State University - 1537) Utah State University - Robust Cell-Level Modeling and Control of Large Battery Packs Program or Field Office: Advanced Research Projects Agency - Energy LocationCs) CCity/County/State): Logan, UT; Colorado Springs, CO; Boulder, CO; Golden, CO; Dearborn, MI Proposed Action Description: Funding will support efforts to develop a novel battery pack architecture supported by algorithms to drive analysis, feedback, and operability. Proposed work will consist of: (1) performing a requirements analysis to determine optimal theoretical design for the battery pack; (2) design and theoretical optimization of the necessary algorithms to control and monitor the cells in the pack; (3) creation , testing, and analysis of a proof-of- concept unit; and (4) application of the algorithmic controls to a commercial battery pack to analyze performance.

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321

Categorical Exclusion Determination Form  

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

ergy ergy Categorical Exclusion Determination Form Proposed Action Title: (0472-1569) G~tomics - Double Sator Switched Reluctance Motor (DSSRM) Technology Progi'am or Field Office: Advanced Research Projects Agency - Energy Location(s) (City/County/State): San Diego, CA Proposed Action Description: General Atomics, in conjunction with the University of Texas-Dallas (UT Dallas), proposes to develop double-stator switched reluctance motor (DSSRM) for electric vehicles (EVs) that will eliminate the use of permanent magnet-based motors that rely on rare earth metals in EVs. General Atomics' application was selected for an initial 18-month period (Phase 1) of funding. The ARPA-E Program Director may decide to negotiate and fund project activities for an additional 18-month period (Phase II) after evaluating the work performed in Phase I. ARPA-E has not obligated

322

Ultratrace determination of curium  

SciTech Connect (OSTI)

Development of a method for detection of curium at near single atom levels is being undertaken as a part of the Advanced Concepts Project at Argonne National Laboratory with funding from the US Department of Energy, Office of Arms Control and Nonproliferation. Ultratrace determination of curium, with the ability to quantify the fraction that is curium-242, provides a signature method of detecting clandestine reprocessing of recently irradiated uranium targets. Curium initially present in any of a variety of materials such as air filters, solid or liquid process waste, soil, flora, or fauna can be recovered via current chemical separations processing techniques. Using the ultratrace method being developed, such recovered curium will be quantified with thousand-fold higher sensitivity than the best currently available method which is alpha counting. This high sensitivity arises because, on average, a given trivalent curium (Cm{sup 3+}) ion can emit a very large number of fluorescence photons before alpha decay occurs.

Beitz, J.V.

1995-02-01T23:59:59.000Z

323

Categorical Exclusion Determination Form  

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

y y Categorical Exclusion Determination Form Proposed Action Title: (0471-1595) Regents of the University of Minnesota - Thermal Fuel: Solar Fuels via Partial Redox Cycles with Heat Recovery Program or Field Office: Advanced Research Projects Agency - Energy LocationCs) CCity/County/State): Minnesota, California, and Colorado. Proposed Action Description: Funding will support development of a dual zone solar thermochemical reactor to produce fuel using ceria-based reactive materials in partial redox cycles and high heat recovery levels through counter-circulation of solid state components. Proposed work consists of indoor laboratory-based research and development, including: (1) designing, fabricating, and characterizing an optimized ceria-based reactive element for use in the reactor to enable maximum fuel productivity and durability; (2) designing and fabricating a

324

Categorical Exclusion Determination Form  

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

of n y of n y Categorical Exclusion Determination Form Proposed Action Title: (0471-1607) University of Florida - Solar Thermochemical Fuel Production via a Novel Low Pressure, Magnetically Stabilized, Non-Volatile Iron Oxide Looping Process Program or Field Office: Advanced Research Projects Agency - Energy LocationCs) CCity/County/State): Gainesville, FL Proposed Action Description: University of Florida proposes to develop a novel solar thermochemical reactor with inputs of water, recycled carbon dioxide (C02), and concentrated solar energy to cost-effectively produce Syngas, a renewable, carbon-neutral fuel. Project activities will include: (1) modeling, design, and fabrication of a high efficiency 1 OkW reactor prototype; (2) test analysis of bench-scale

325

Cat Dish Bacteria Determination  

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

Dish Bacteria Determination Dish Bacteria Determination Name: Ashlyn Status: student Grade: 6-8 Location: FL Country: USA Date: Summer 2011 Question: Is there a simple way to measure bacteria in cat's water dishes without doing something with Agar? To measure bacteria in a water bowl, do I need to use a microscope? I am thinking of using different materials (metal, plastic, and glass) to see which of those has the grows the most bacteria. Replies: Hello Ashlyn, That is a very good idea for a science project. Usually the best way to do a quantitative analysis of bacteria content is to take a measured amount of a liquid, plate it out on some type of agar and do a colony count. This will give a basic indication of bacterial load, but not differentiate the types of bacteria. The most common type of bacteria that causes a pink film to form on water bowls and showers, etc. is Serratia marcescens. It is a fairly harmless organism that reacts with standing water. It may only adhere to the walls of the container and not be 'free floating' in the water. A microscope would not likely help unless you were able to do special stains to help see the bacteria. You might also want to add stoneware or ceramic to your list. Just so you know stoneware or ceramic make the best containers for cats to drink out of. It keeps the water fresher: Maybe less bacteria? You might just have to rely on a visual inspection of the containers to see which has more pink per surface area.

326

Roderick MacKinnon and Ion Channels - Potassium Channels and Sodium  

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

Roderick MacKinnon and Ion Channels Roderick MacKinnon and Ion Channels Resources with Additional Information · Patents Roderick MacKinnon Courtesy of The Rockefeller University Roderick MacKinnon, M.D., a visiting researcher at the U.S. Department of Energy's Brookhaven National Laboratory, is a recipient of the 2003 Nobel Prize in Chemistry 'for structural and mechanistic studies of ion channels.' His research explains "how a class of proteins helps to generate nerve impulses - the electrical activity that underlies all movement, sensation, and perhaps even thought. The work leading to the prize was done primarily at the Cornell High Energy Synchrotron Source [CHESS] and the National Synchrotron Light Source [NSLS] at Brookhaven. The proteins, called ion channels, are tiny pores that stud the surface of all of our cells. These channels allow the passage of potassium, calcium, sodium, and chloride molecules called ions. Rapid-fire opening and closing of these channels releases ions, moving electrical impulses from the brain in a wave to their destination in the body."1

327

Phase 2 TWR Steam Reforming Test for Sodium-Bearing Waste Treatment  

SciTech Connect (OSTI)

About one million gallons of acidic, hazardous, and radioactive sodium-bearing waste (SBW) is stored in stainless steel tanks a the Idaho Nuclear Technology and Engineering Center (INTEC), which is a major operating facility of the Idaho National Engineering and Environmental Laboratory (INEEL). Steam reforming is a candidate technology being investigated for converting the SBW into a road ready waste form that can be shipped to the Waste Isolation Pilot Plant in New Mexico for interment. Fluidized bed steam reforming technology, licensed to ThermoChem Waste Remediation, LLC (TWR) by Manufacturing Technology Conversion International, was tested in two phases using an INEEL (Department of Energy) fluidized bed test system located at the Science Applications International Corporation (SAIC) Science and Technology Applications Research Center in Idaho Falls, Idaho. The Phase 1 tests were reported earlier. The Phase 2 tests are reported here. For Phase 2, the process feed rate, reductant stoichiometry, and process temperature were varied to identify and demonstrate how the process might be optimized to improve operation and product characteristics. The first week of testing was devoted primarily to process chemistry and the second week was devoted more toward bed stability and particle size control.

Nicholas R. Soelberg; Doug Marshall; Dean Taylor; Steven Bates

2004-01-01T23:59:59.000Z

328

Status of advanced fuel candidates for Sodium Fast Reactor within the Generation IV International Forum  

SciTech Connect (OSTI)

The main challenge for fuels for future Sodium Fast Reactor systems is the development and qualification of a nuclear fuel sub-assembly which meets the Generation IV International Forum goals. The Advanced Fuel project investigates high burn-up minor actinide bearing fuels as well as claddings and wrappers to withstand high neutron doses and temperatures. The R&D outcome of national and collaborative programs has been collected and shared between the AF project members in order to review the capability of sub-assembly material and fuel candidates, to identify the issues and select the viable options. Based on historical experience and knowledge, both oxide and metal fuels emerge as primary options to meet the performance and the reliability goals of Generation IV SFR systems. There is a significant positive experience on carbide fuels but major issues remain to be overcome: strong in-pile swelling, atmosphere required for fabrication as well as Pu and Am losses. The irradiation performance database for nitride fuels is limited with longer term R&D activities still required. The promising core material candidates are Ferritic/Martensitic (F/M) and Oxide Dispersed Strengthened (ODS) steels.

F. Delage; J. Carmack; C. B. Lee; T. Mizuno; M. Pelletier; J. Somers

2013-10-01T23:59:59.000Z

329

On the Criticality Safety of Transuranic Sodium Fast Reactor Fuel Transport Casks  

SciTech Connect (OSTI)

This work addresses the neutronic performance and criticality safety issues of transport casks for fuel pertaining to low conversion ratio sodium cooled fast reactors, conventionally known as Advanced Burner Reactors. The criticality of a one, three, seven and 19-assembly cask capacity is presented. Both dry helium and flooded water filled casks are considered. No credit for fuel burnup or fission products was assumed. As many as possible of the conservatisms used in licensing light water reactor universal transport casks were incorporated into this SFR cask criticality design and analysis. It was found that at 7-assemblies or more, adding moderator to the SFR cask increases criticality margin. Also, removal of MAs from the fuel increases criticality margin of dry casks and takes a slight amount of margin away for wet casks. Assuming credit for borated fuel tube liners, this design analysis suggests that as many as 19 assemblies can be loaded in a cask if limited purely by criticality safety. If no credit for boron is assumed, the cask could possibly hold seven assemblies if low conversion ratio fast reactor grade fuel and not breeder reactor grade fuel is assumed. The analysis showed that there is a need for new cask designs for fast reactors spent fuel transportation. There is a potential of modifying existing transportation cask design as the starting point for fast reactor spent fuel transportation.

Samuel Bays; Ayodeji Alajo

2010-05-01T23:59:59.000Z

330

The case for endurance testing of sodium-heated steam generators  

SciTech Connect (OSTI)

It is generally believed that a nuclear power comeback before the end of the century will be through the vehicle of the light water reactor (LWR). The newer designs, with their important technical and economic advances, should attract wide interest and result in commercial success for the manufacturers and their utility customers. To develop the liquid-metal fast breeder reactor (LMFBR), approximately $30 billion has been spent worldwide, a third of which has been spent in the US. As a result of this considerable investment, most of the technical obstacles to deployment of the LMFBR have been removed with a few exceptions, one of which is the long-term performance of sodium-heated steam generators. Of the difficulties that have beset the current vintage of nuclear power plants, the performance of steam generators in pressurized water reactors (PWRs) was the most egregious. There was very little development testing and no model testing of PWR steam generators. Development occurred in the plants themselves resulting in many outages and more than $5 billion in lost revenue and replacement power costs. As a result, the electric utility industry is certain to exercise caution regarding acquisition of the LMFBR and will demand strong objective evidence of steam generator reliability. Only long-term endurance testing of prototypic models under prototypic conditions will satisfy this demand.

Onesto, A.T.; Zweig, H.R.; Gibbs, D.C. (Energy Technology Engineering Center, Canoga Park, CA (United States))

1992-01-01T23:59:59.000Z

331

Sodium bromide electron-extraction layers for polymer bulk-heterojunction solar cells  

SciTech Connect (OSTI)

Inexpensive and non-toxic sodium bromide (NaBr) was introduced into polymer solar cells (PSCs) as the cathode buffer layer (CBL) and the electron extraction characteristics of the NaBr CBL were investigated in detail. The PSCs based on NaBr CBL with different thicknesses (i.e., 0?nm, 0.5?nm, 1?nm, and 1.5?nm) were prepared and studied. The optimal thickness of NaBr was 1?nm according to the photovoltaic data of PSCs. The open-circuit voltage (V{sub oc}), short-circuit current density (J{sub sc}), fill factor (FF), and power conversion efficiency (PCE) of the PSC with 1?nm NaBr were evaluated to be 0.58?V, 7.36?mA/cm{sup 2}, 0.63, and 2.70%, respectively, which were comparable to those of the reference device with the commonly used LiF. The optimized photovoltaic performance of PSC with 1?nm NaBr was ascribed to the improved electron transport and extraction capability of 1?nm NaBr in PSCs. In addition, the NaBr CBL could prevent the diffusion of oxygen and water vapor into the active layer and prolong the lifetime of the devices to some extent. Therefore, NaBr layer could be considered as a promising non-toxic CBL for PSCs in future.

Gao, Zhi; Qu, Bo, E-mail: bqu@pku.edu.cn; Xiao, Lixin; Chen, Zhijian [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China) [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China); New Display Device and System Integration Collaborative Innovation Center of the West Coast of the Taiwan Strait, Fuzhou 350002 (China); Zhang, Lipei [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China)] [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China); Gong, Qihuang [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China) [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China); Collaborative Innovation Center of Quantum Matter, Beijing 100871 (China)

2014-03-10T23:59:59.000Z

332

Experimental Investigation on Density Wave Instability of Sodium Boiling Two-Phase Flow in an Annulus  

SciTech Connect (OSTI)

Experiments of density wave instability in a liquid sodium boiling two-phase flow experiments in an annulus were carried out in the following parameters range: heat flux from 80 kW/m{sup 2} to 976 kW/m{sup 2}, inlet subcooling from 25.6 deg. C to 226.8 deg. C, mass flow rate from 7.92 kg/h to 68.9 kg/h, system pressure from 2600 Pa to 0.12 Mpa. Not only the mechanism of the instability, critical conditions and oscillation period, but also the effects of pressure, mass flow rate and inlet subcooling on the density wave instability were explored experimentally and theoretically. From the experimental data, it was found that the lower the inlet temperature was, the higher the system pressure and the mass flow rate that could result in a more stable boiling two-phase flow were. A correlation for the density wave instability was obtained on from the dimensional analysis for the conservation equations of mass, momentum and energy. (authors)

Suizheng Qiu; Dounan Jia [Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, Shaanxi, 710049 (China); Minoru Takahashi [Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152 (Japan)

2002-07-01T23:59:59.000Z

333

Steam Reforming Application for Treatment of DOE Sodium Bearing Tank Wastes at INL for ICP  

SciTech Connect (OSTI)

The patented THOR steam reforming waste treatment technology has been selected as the technology of choice for treatment of Sodium Bearing Waste (SBW) at the Idaho National Laboratory (INL) for the Idaho Cleanup Project (ICP). SBW is an acidic tank waste at the Idaho Nuclear Technology and Engineering Center (INTEC) at INL. It consists primarily of waste from decontamination activities and laboratory wastes. SBW contains high concentrations of nitric acid, alkali and aluminum nitrates, with minor amounts of many inorganic compounds including radionuclides, mainly cesium and strontium. The THOR steam reforming process will convert the SBW tank waste feed into a dry, solid, granular product. The THOR technology was selected to treat SBW, in part, because it can provide flexible disposal options to accommodate the final disposition path selected for SBW. THOR can produce a final end-product that will meet anticipated requirements for disposal as Remote-Handled TRU (RH-TRU) waste; and, with modifications, THOR can also produce a final endproduct that could be qualified for disposal as High Level Waste (HLW). SBW treatment will be take place within the Integrated Waste Treatment Unit (IWTU), a new facility that will be located at the INTEC. This paper provides an overview of the THOR process chemistry and process equipment being designed for the IWTU.

J. Bradley Mason; Kevin Ryan; Scott Roesener; Michael Cowen; Duane Schmoker; Pat Bacala; Bill Landman

2006-03-01T23:59:59.000Z

334

Removal of ash from Indian Assam coking coal using sodium hydroxide and acid solutions  

SciTech Connect (OSTI)

Mineral matter (ash) removal from Assam coking coal by leaching with different concentrations of sodium hydroxide and acid (HCl, H{sub 2}SO{sub 4}, HNO{sub 3}, and HF) solutions has been investigated at a temperature of 75 C. The parameters tested were concentration of NaOH, type of acid, concentration of acids, and number of acid leaching steps. Total ash removed increased with increase of NaOH and acid concentrations up to the range studied. For the same experimental conditions, treatment of caustic leached coal in HCl acid resulted in better demineralization than in H{sub 2}SO{sub 4} or HNO{sub 3} acid. In the NaOH-HNO{sub 3} leaching method, a higher concentration (>20%) of HNO{sub 3} acid had an adverse effect on the de-ashing of coal. The NaOH-HF leaching process has been found to be the most effective method of coal de-ashing. The two acid treatment steps (HCl-H{sub 2}SO{sub 4}/HCl-HNO{sub 3}) after caustic leaching are the next most effective methods of coal de-ashing. The removal of mineral matter (including S) from coal is expected to decrease the graphite reactivity and thus the atmospheric pollution (due to the generation of smaller quantities of CO and SO{sub 2} gases).

Kumar, M.; Shankar, R.H.

2000-03-01T23:59:59.000Z

335

Interactions between mica surfaces in sodium polyacrylate solutions containing calcium ions  

SciTech Connect (OSTI)

Polyacrylic acid (PAA) and its salts find use in a number of different applications, such as in fluids for secondary oil recovery, as dispersing agents for mineral suspensions in, for example, ceramic and paper coating applications, and as flocculants for waste-water treatment. The forces acting between negatively charged muscovite mica surfaces immersed in solutions containing sodium polyacrylate (NaPAA) have been studied. No evidence for PAA adsorption in the absence of calcium ions in the solution was found. However, at a CaCl[sub 2] concentration of about 3 [times] 10[sup [minus]3] M a layer of PAA adsorbed on each surface. At large separations, the forces between the PAA-coated surfaces were dominated by repulsive double-layer forces. At separations below 50--80 [angstrom], depending on the solution conditions, an attractive force in excess of the van der Waals attraction was observed. The adhesion force between the layers was 7-8 mN / m at pH 6 and increased somewhat with increasing pH to about 9 mN/m at pH 10. The authors argue that both the long-range attraction and the adhesion force primarily are due to COO[sup [minus

Berg, J.M.; Claesson, P.M. (Royal Inst. of Tech., Stockholm (Sweden). Dept of Physical Chemistry); Neuman, R.D. (Auburn Univ., AL (United States). Dept. of Chemical Engineering)

1993-11-01T23:59:59.000Z

336

Development and Testing of an Americium/Lanthanide Separation Flowsheet Using Sodium Bismuthate  

SciTech Connect (OSTI)

The separation of Am from the lanthanides and curium is a key step in proposed advanced fuel cycle scenarios. The partitioning and transmutation of Am is desirable to minimize the long-term heat load of material interred in a future high-level waste repository. A separation process amenable to process scale-up remains elusive. Given only subtle chemistry differences within and between the ions of the trivalent actinide and lanthanide series this separation is challenging ; however, higher oxidation states of americium can be prepared using sodium bismuthate and separated via solvent extraction using diamylamylphosphonate (DAAP) extraction. Among the other trivalent metals only Ce is also oxidized and extracted. Due to the long-term instability of Am(VI) , the loaded organic phase is readily selectively stripped to partition the actinide to a new acidic aqueous phase. Batch extraction distribution ratio measurements were used to design a flowsheet to accomplish this separation. Additionally, crossflow filtration was investigated as a method to filter the bismuthate solids from the feed solution prior to extraction. Results of the filtration studies, flowsheet development work and flowsheet performance testing using a centrifugal contactor are detailed.

Jack Law; Bruce Mincher; Troy Garn; Mitchell Greenhalgh; Nicholas Schmitt; Veronica Rutledge

2014-04-01T23:59:59.000Z

337

A Reliable Steam Generator That Will Allow the Elimination of the Secondary Sodium Circuit in an LMFBR  

SciTech Connect (OSTI)

A particular weakness of the commercial liquid-metal fast breeder reactor is the design of the steam generator (SG). Any small leak in the SG allows the hot sodium (Na) to come into contact with the water/steam, and this results in a violent reaction and SG damage. A secondary circuit is normally used to prevent such reactions causing damage to the reactor core and primary vessel.NNC Ltd. has developed a copper (Cu)-bonded SG system, the objective of which is to provide three separate solid boundaries (two steel and one Cu) between the primary sodium coolant and the water/steam and hence eliminate the possibility of contact between Na and water/steam. The design uses a hot isostatic pressure method of construction to bond all three barriers to aid heat transfer. This highly reliable system allows the elimination of the secondary circuit, greatly reducing the cost of the reactor system and increasing availability.

Sherwood, D.V.; Chikazawa, Y

2005-04-15T23:59:59.000Z

338

High magnetic shear gain in a liquid sodium stable couette flow experiment A prelude to an alpha - omega dynamo  

SciTech Connect (OSTI)

The {Omega}-phase of the liquid sodium {alpha}-{Omega} dynamo experiment at NMIMT in cooperation with LANL has successfully demonstrated the production of a high toroidal field, B{sub {phi}} {approx_equal} 8 x B{sub r} from the radial component of an applied poloidal magnetic field, B{sub r}. This enhanced toroidal field is produced by rotational shear in stable Couette Row within liquid sodium at Rm {approx_equal} 120. The small turbulence in stable Taylor-Couette Row is caused by Ekman Row where ({delta}v/v){sup 2} {approx} 10{sup -3}. This high {Omega}-gain in low turbulence flow contrasts with a smaller {Omega}-gain in higher turbulence, Helmholtz-unstable shear flows. This result supports the ansatz that large scale astrophysical magnetic fields are created within semi-coherent large scale motions in which turbulence plays a diffusive role that enables magnetic flux linkage.

Colgate, Stirling [Los Alamos National Laboratory; Li, Jui [Los Alamos National Laboratory; Finn, John [Los Alamos National Laboratory; Pariev, Vladimir [Los Alamos National Laboratory; Beckley, Howard [NM INSTIT. OF MINING AND TECH; Si, Jiahe [NM INSTIT. OF MINING AND TECH.; Martinic, Joe [NM INSTIT. OF MINING AND TECH.; Westpfahl, David [NM INSTIT. OF TECH.; Slutz, James [NM INSTIT. OF MINING AND TECH.; Westrom, Zeb [NM INSTIT. OF TECH.; Klein, Brianna [NM INSTIT. OF MINING AND TECH.

2010-11-08T23:59:59.000Z

339

Design, fabrication, and testing of a sodium evaporator for the STM4-120 kinematic Stirling engine  

SciTech Connect (OSTI)

This report describes the development and testing of a compact heat-pipe heat exchanger kW(e) designed to transfer thermal energy from hot combustion gases to the heater tubes of a 25-kW(e) Stirling engine. In this system, sodium evaporates from a surface that is heated by a stream of hot gases. The liquid metal then condenses on the heater tubes of a Stirling engine, where energy is transferred to the engine`s helium working fluid. Tests on a prototype unit illustrated that a compact (8 cm {times} 13 cm {times} 16 cm) sodium evaporator can routinely transfer 15 kW(t) of energy at an operating vapor temperature of 760 C. Four of these prototype units were eventually used to power a 25-kW(e) Stirling engine system. Design details and test results from the prototype unit are presented in this report.

Rawlinson, K.S.; Adkins, D.R.

1995-05-01T23:59:59.000Z

340

Determinations | Building Energy Codes Program  

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

Regulations Regulations Site Map Printable Version Development Adoption Compliance Regulations Determinations Federal Buildings Manufactured Housing Resource Center Determinations Commercial Determinations Residential Determinations Final Determination on ASHRAE Standard 90.1-2010 On October 19, 2011, DOE issued a final determination that ASHRAE Standard 90.1-2010 would achieve greater energy efficiency in buildings subject to the standard than if they were built to ASHRAE Standard 90.1-2007. View the complete final determination notice that appeared in the Federal Register on October 19, 2011. View the complete preliminary determination notice that appeared in the Federal Register on July 20, 2011. State Certification This final determination is being published before the two year deadline

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

The Role of Surfactants in Photogalvanics: Solar Energy Conversion and Storage in the Sodium Lauryl SulphateThymol BlueMannose System  

Science Journals Connector (OSTI)

Sodium lauryl sulphate (SLS) was used as a surfactant, thymol blue as a photosensitizer and mannose as a reductant in a photogalvanic cell to improve the conversion efficiency and storage capacity of such cell...

Prem Prakash Solanki; K. M. Gangotri

2012-01-01T23:59:59.000Z

342

Phase separation of quaternary solubilized solutions or micro emulsion of hydrocarbons containing sodium oleate + phenol + benzene + water by freezing point measurements  

Science Journals Connector (OSTI)

The depressions in freezing point measurements in quaternary solubilized solutions or micro-emulsion in sodium oleate + phenol + benzene + water are measured. Maxima and minima were observed, Gibbs' phase rule...

Dr. Bhagwan Swaroop

1978-05-01T23:59:59.000Z

343

Workers' Compensation Costs Rising Across the Nation | Department...  

Office of Environmental Management (EM)

the stock market was booming. The full NASI report is available from the academy's Web site at www.nasi.org. Story link: http:www.occupationalhazards.comfullstory.php?WID7397...

344

Bench-scale screening tests for a boiling sodium-potassium alloy solar receiver  

SciTech Connect (OSTI)

Bench-scale tests were carried out in support of the design of a second-generation 75-kW{sub t} reflux pool-boiler solar receiver. The receiver will be made from Haynes Alloy 230 and will contain the sodium-potassium alloy NaK-78. The bench-scale tests used quartz-lamp-heated boilers to screen candidate boiling-stabilization materials and methods at temperatures up to 750{degree}C. Candidates that provided stable boiling were tested for hot-restart behavior. Poor stability was obtained with single 1/4-inch diameter patches of powdered metal hot-press-sintered onto the wetted side of the heat-input area. Laser-drilled and electric-discharge-machined cavities in the heated surface also performed poorly. Small additions of xenon, and heated-surface tilt out of the vertical dramatically improved poor boiling stability; additions of helium or oxygen did not. The most stable boiling was obtained when the entire heat-input area was covered by a powdered-metal coating. The effect of heated-area size was assessed for one coating: at low incident fluxes, when even this coating performed poorly, increasing the heated-area size markedly improved boiling stability. Good hot-restart behavior was not observed with any candidate, although results were significantly better with added xenon in a boiler shortened from 3 to 2 feet. In addition to the screening tests, flash-radiography imaging of metal-vapor bubbles during boiling was attempted. Contrary to the Cole-Rohsenow correlation, these bubble-size estimates did not vary with pressure; instead they were constant, consistent with the only other alkali metal measurements, but about 1/2 their size.

Moreno, J.B.; Moss, T.A.

1993-06-01T23:59:59.000Z

345

Probing the Failure Mechanism of SnO{sub 2} Nanowires for Sodium-Ion Batteries  

SciTech Connect (OSTI)

Nonlithium metals such as sodium have attracted wide attention as a potential charge carrying ion for rechargeable batteries. Using in situ transmission electron microscopy in combination with density functional theory calculations, we probed the structural and chemical evolution of SnO{sub 2} nanowire anodes in Na-ion batteries and compared them quantitatively with results from Li-ion batteries (Huang, J. Y.; et al. Science 2010, 330, 1515-1520). Upon Na insertion into SnO{sub 2}, a displacement reaction occurs, leading to the formation of amorphous Na{sub x}Sn nanoparticles dispersed in Na{sub 2}O matrix. With further Na insertion, the Na{sub x}Sn crystallized into Na{sub 15}Sn{sub 4} (x = 3.75). Upon extraction of Na (desodiation), the Na{sub x}Sn transforms to Sn nanoparticles. Associated with the dealloying, pores are found to form, leading to a structure of Sn particles confined in a hollow matrix of Na{sub 2}O. These pores greatly increase electrical impedance, therefore accounting for the poor cyclability of SnO{sub 2}. DFT calculations indicate that Na{sup +} diffuses 30 times slower than Li{sup +} in SnO{sub 2}, in agreement with in situ TEM measurement. Insertion of Na can chemomechanically soften the reaction product to a greater extent than in lithiation. Therefore, in contrast to the lithiation of SnO{sub 2} significantly less dislocation plasticity was seen ahead of the sodiation front. This direct comparison of the results from Na and Li highlights the critical role of ionic size and electronic structure of different ionic species on the charge/discharge rate and failure mechanisms in these batteries.

Gu, Meng; Kushima, Akihiro; Shao, Yuyan; Zhang, Ji-Guang; Liu, Jun; Browning, Nigel D; Li, Ju; Wang, Chongmin

2013-09-30T23:59:59.000Z

346

Characterization of Tank WM-189 Sodium-bearing Waste at INTEC, Rev. 1  

SciTech Connect (OSTI)

Idaho Nuclear Technology and Engineering Center 300,000-gallon vessel WM-189 was filled in late 2001 with concentrated sodium bearing waste (SBW). Three airlifted liquid samples and a steam jetted slurry sample were obtained for quantitative analysis and characterization of WM-189 liquid phase SBW and tank heel sludge. Estimates were provided for most of the reported data values, based on the greater of (a) analytical uncertainty, and (b) variation of analytical results between nominally similar samples. A consistency check on the data was performed by comparing the total mass of dissolved solids in the liquid, as measured gravimetrically from a dried sample, with the corresponding value obtained by summing the masses of cations and anions in the liquid, based on the reported analytical data. After reasonable adjustments to the nitrate and oxygen concentrations, satisfactory consistency between the two results was obtained. A similar consistency check was performed on the reported compositional data for sludge solids from the steam jetted sample. In addition to the compositional data, various other analyses were performed: particle size distribution was measured for the sludge solids, sludge settling tests were performed, and viscosity measurements were made. WM-189 characterization results were compared with those for WM-180, and other Tank Farm Facility tank characterization data. A 2-liter batch of WM-189 simulant was prepared and a clear, stable solution was obtained, based on a general procedure for mixing SBW simulant that was develop by Dr. Jerry Christian. This WM-189 SBW simulant is considered suitable for laboratory testing for process development.

Batcheller, Thomas Aquinas; Taylor, Dean Dalton

2003-07-01T23:59:59.000Z

347

Ion Recognition Approach to Volume Reduction of Alkaline Tank Waste by Separation of Sodium Salts  

SciTech Connect (OSTI)

The overall goal of this research conducted under the auspices of the USDOE Environmental Management Science Program (EMSP) is to provide a scientific foundation upon which the feasibility of new liquid-liquid extraction chemistry applicable to the bulk reduction of the volume of tank waste can be evaluated. Disposal of high-level nuclear waste is horrendously expensive, in large part because the actual radioactive matter in the tanks has been diluted over 10,000-fold by ordinary inorganic chemicals. Quite simply, if the radioactive matter and bulk inorganic chemicals could be separated into separate streams, large cost savings would accrue, because the latter stream is much cheaper to dispose of. In principle, one could remove the radionuclides from the waste, leaving behind the bulk of the waste; or one could remove certain bulk chemicals from the waste, leaving behind the radionuclides. The preponderance of effort over the past two decades has focused on the former approach, which produces a high-level stream for vitrification and a low-activity stream for either vitrification (Hanford) or grout (Savannah River). At Hanford, a particular concern arises in that vitrification of a large volume of low-activity waste will be unacceptably expensive. To make matters worse, a projected future deficit of tank space may necessitate construction of expensive new tanks. These problems have raised questions as to whether a solution could be devised based on separation of sodium from the waste, resulting in the reduction of the total volume of waste that must be vitrified.

Moyer, Bruce A.; Lumetta, Gregg J.; Marchand, Alan P.

2002-06-01T23:59:59.000Z

348

Ion Recognition Approach to Volume Reduction of Alkaline Tank Waste by Separation of Sodium Salts  

SciTech Connect (OSTI)

The overall goal of this research conducted under the auspices of the USDOE Environmental Management Science Program (EMSP) is to provide a scientific foundation upon which the feasibility of new liquid- liquid extraction chemistry applicable to the bulk reduction of the volume of tank waste can be evaluated. Disposal of high- level nuclear waste is horrendously expensive, in large part because the actual radioactive matter in the tanks has been diluted over 10,000-fold by ordinary inorganic chemicals.1 Quite simply, if the radioactive matter and bulk inorganic chemicals could be separated into separate streams, large cost savings would accrue, because the latter stream is much cheaper to dispose of. In principle, one could remove the radionuclides from the waste, leaving behind the bulk of the waste; or one could remove certain bulk chemicals from the waste, leaving behind a mixture of radionuclides and minor inorganic salts. The preponderance of effort over the past two decades has focused on the former approach, which produces a high- level stream for vitrification and a low-activity stream for either vitrification (Hanford) or grout (Savannah River). At Hanford, a particular concern arises in that vitrification of a large volume of low-activity waste will be unacceptably expensive. To make matters worse, a projected future deficit of tank space may necessitate construction of expensive new tanks. These problems have raised questions as to whether a solution could be devised based on separation of sodium from the waste, resulting in the reduction of the total volume of waste that must be vitrified.

Moyer, Bruce A; Lumetta, Gregg J.; Marchand, Alan P.

2003-06-01T23:59:59.000Z

349

Comparative expression of candidate genes involved in sodium transport and compartmentation in citrus  

Science Journals Connector (OSTI)

Abstract Plants possess a number of mechanisms to cope with sodium (Na+) under salt stress conditions that include minimizing Na+ influx, maximizing efflux back to the growth medium or to apoplastic spaces via Na+/H+ antiporters in the plasma membrane, intracellular compartmentation of Na+ into the vacuole, as well as recirculation of Na+ out of the shoot via the phloem. Na+ transport in plants constitutes a complex system, in which different Na+ transporters are closely related and their functions are matched tightly. The fact that in citrus under salt stress does chloride appear to be the more toxic ion has led to little attention being paid to Na+ uptake and transport mechanisms in citrus. The aim of this study was to provide insight into the links between the expression levels of candidate Na+ transporter genes (SOS1, NHX1, HKT1), as well as tonoplast proton pumps (V-ATPase, V-PPiase), and Na+ tolerance in two citrus rootstocks, Cleopatra mandarin and trifoliate orange, differing in their Na+ exclusion capacity under salt stress. According to the results of this preliminary study, we hypothesize that higher root Na+ concentration in trifoliate orange genotype, and thus lower allocation of this ion in the shoots, is the result of an enhanced retrieval of Na+ from xylem stream, and an impaired translocation to the shoot tissues, probably as a consequence of the overexpression of putative SOS1 (in roots) and HKT1 (both in roots and shoots). Moreover, the higher transcriptional levels of putative NHX1 found in roots and shoots of trifoliate orange plantlets compared to those of Cleopatra mandarin, together with the enhanced activity of the tonoplast proton pumps in the former, might reveal the preferential sequestration into vacuole of retrieved Na+ from xylem mainly in roots.

B. Martnez-Alcntara; M.R. Martnez-Cuenca; A. Quiones; D.J. Iglesias; E. Primo-Millo; M.A. Forner-Giner

2015-01-01T23:59:59.000Z

350

Start-up fuel and power flattening of sodium-cooled candle core  

SciTech Connect (OSTI)

The hard neutron spectrum and unique power shape of CANDLE enable its distinctive performances such as achieving high burnup more than 30% and exempting necessity of both enrichment and reprocessing. On the other hand, they also cause several challenging problems. One is how the initial fuel can be prepared to start up the first CANDLE reactor because the equilibrium fuel composition that enables stable CANDLE burning is complex both in axial and radial directions. Another prominent problem is high radial power peaking factor that worsens averaged burnup, namely resource utilization factor in once-through mode and shorten the life time of structure materials. The purposes of this study are to solve these two problems. Several ideas for core configurations and startup fuel using single enrichment uranium and iron as a substitute of fission products are studied. As a result, it is found that low enriched uranium is applicable to ignite the core but all concepts examined here exceeded heat limits. Adjustment in enrichment and height of active and burnt zone is opened for future work. Sodium duct assemblies and thorium fuel assemblies loaded in the center region are studied as measures to reduce radial power peaking factor. Replacing 37 fuels by thorium fuel assemblies in the zeroth to third row provides well-balanced performance with flattened radial power distribution. The CANDLE core loaded with natural uranium in the outer and thorium in the center region achieved 35.6% of averaged burnup and 7.0 years of cladding life time owing to mitigated local fast neutron irradiation at the center. Using thorium with natural or depleted uranium in CANDLE reactor is also beneficial to diversifying fission resource and extending available term of fission energy without expansion of needs for enrichment and reprocessing.

Takaki, Naoyuki; Sagawa, Yu; Umino, Akitake [Department of Nuclear Safety Engineering, Tokyo City University 1-28-1 Tamazutsumi, Setagaya, Tokyo 158-8557 (Japan); Sekimoto, Hiroshi [University of California, Berkeley, CA 94720 (United States)

2013-07-01T23:59:59.000Z

351

Calmodulin and calcium differentially regulate the neuronal Nav1.1 voltage-dependent sodium channel  

SciTech Connect (OSTI)

Highlights: {yields} Both Ca{sup ++}-Calmodulin (CaM) and Ca{sup ++}-free CaM bind to the C-terminal region of Nav1.1. {yields} Ca{sup ++} and CaM have both opposite and convergent effects on I{sub Nav1.1}. {yields} Ca{sup ++}-CaM modulates I{sub Nav1.1} amplitude. {yields} CaM hyperpolarizes the voltage-dependence of activation, and increases the inactivation rate. {yields} Ca{sup ++} alone antagonizes CaM for both effects, and depolarizes the voltage-dependence of inactivation. -- Abstract: Mutations in the neuronal Nav1.1 voltage-gated sodium channel are responsible for mild to severe epileptic syndromes. The ubiquitous calcium sensor calmodulin (CaM) bound to rat brain Nav1.1 and to the human Nav1.1 channel expressed by a stably transfected HEK-293 cell line. The C-terminal region of the channel, as a fusion protein or in the yeast two-hybrid system, interacted with CaM via a consensus C-terminal motif, the IQ domain. Patch clamp experiments on HEK1.1 cells showed that CaM overexpression increased peak current in a calcium-dependent way. CaM had no effect on the voltage-dependence of fast inactivation, and accelerated the inactivation kinetics. Elevating Ca{sup ++} depolarized the voltage-dependence of fast inactivation and slowed down the fast inactivation kinetics, and for high concentrations this effect competed with the acceleration induced by CaM alone. Similarly, the depolarizing action of calcium antagonized the hyperpolarizing shift of the voltage-dependence of activation due to CaM overexpression. Fluorescence spectroscopy measurements suggested that Ca{sup ++} could bind the Nav1.1 C-terminal region with micromolar affinity.

Gaudioso, Christelle; Carlier, Edmond; Youssouf, Fahamoe [INSERM U641, Institut Jean Roche, Marseille F-13344 (France) [INSERM U641, Institut Jean Roche, Marseille F-13344 (France); Universite de la Mediterranee, Faculte de Medecine Secteur Nord, IFR 11, Marseille F-13344 (France); Clare, Jeffrey J. [Eaton Pharma Consulting, Eaton Socon, Cambridgeshire PE19 8EF (United Kingdom)] [Eaton Pharma Consulting, Eaton Socon, Cambridgeshire PE19 8EF (United Kingdom); Debanne, Dominique [INSERM U641, Institut Jean Roche, Marseille F-13344 (France) [INSERM U641, Institut Jean Roche, Marseille F-13344 (France); Universite de la Mediterranee, Faculte de Medecine Secteur Nord, IFR 11, Marseille F-13344 (France); Alcaraz, Gisele, E-mail: gisele.alcaraz@univmed.fr [INSERM U641, Institut Jean Roche, Marseille F-13344 (France) [INSERM U641, Institut Jean Roche, Marseille F-13344 (France); Universite de la Mediterranee, Faculte de Medecine Secteur Nord, IFR 11, Marseille F-13344 (France)

2011-07-29T23:59:59.000Z

352

Resonant multiwave-mixing spectra of gas-phase sodium: Nonperturbative calculations  

Science Journals Connector (OSTI)

We perform nonperturbative calculations of resonant multiwave mixing of two high-intensity laser beams of different frequencies both for a general three-level system and for the 3 2S1/23 2P1/2 electronic resonance of the sodium atom. Our calculations proceed by direct numerical integration of the density-matrix equations and subsequent Fourier analysis of the calculated time-dependent density-matrix elements. We examine the case where two nearly degenerate input beams are each detuned many collisional linewidths from electronic resonance, and the frequency difference between the input beams is tuned through a ground-state resonance. Unlike previous high-intensity analyses, each input beam can be resonant with numerous transitions simultaneously; for a three-level system, we refer to this as an M-type system, in analogy with ?- and V-type systems. Calculated four-, six-, and eight-wave-mixing spectra exhibit subharmonic resonances of the type observed experimentally by Trebino and Rahn [Opt. Lett. 12, 912 (1987)]. The three-level system is studied to gain insight into the physics of these subharmonic resonances. For more quantitative comparison with experiment, we use a model that includes the 16 Zeeman and hyperfine states in the 3 2S1/2 and the 3 2P1/2 levels, and accounts for arbitrary linear polarization of the input laser radiation. The relative intensities of the resonance features in the calculated multiwave-mixing spectra show good agreement with experiment. These resonance features broaden and shift as laser intensity increases, as predicted for four-wave-mixing processes in previous, less general high-intensity analyses. Both theory and experiment also show additional resonant features in the eight-wave-mixing spectra that appear at very high intensity.

Robert P. Lucht; Rick Trebino; Larry A. Rahn

1992-06-01T23:59:59.000Z

353

Minor Actinide Transmutation Physics for Low Conversion Ratio Sodium Fast Reactors  

SciTech Connect (OSTI)

The effects of varying the reprocessing strategy used in the closed cycle of a Sodium Fast Reactor (SNF) prototype are presented in this paper. The isotopic vector from the aqueous separation of transuranic (TRU) elements in Light Water Reactor (LWR) spent nuclear fuel (SNF) is assumed to also vary according to the reprocessing strategy of the closed fuel cycle. The decay heat, gamma energy, and neutron emission of the fuel discharge at equilibrium are found to vary depending on the separation strategy. The SFR core used in this study corresponds to a burner configuration with a conversion ratio of ~0.5 based on the Super-PRISM design. The reprocessing strategies stemming from the choice of either metal or oxide fuel for the SFR are found to have a large impact on the equilibrium discharge decay heat, gamma energy, and neutron emission. Specifically, metal fuel SFR with pyroprocessing of the discharge produces the largest amount of TRU consumption (166 kg per Effective Full Power Year or EFPY), but also the highest decay heat, gamma energy, and neutron emission. On the other hand, an oxide fuel SFR with PUREX reprocessing minimizes the decay heat and related parameters of interest to a minimum, even when compared to thermal Mixed Oxide (MOX) or Inert Matrix Fuel (IMF) on a per mass basis. On an assembly basis, however, the metal SFR discharge has a lower decay heat than an equivalent oxide SFR assembly for similar minor actinide consumptions (~160 kg/EFPY.) Another disadvantage in the oxide PUREX reprocessing scenario is that there is no consumption of americium and curium, since PUREX reprocessing separates these minor actinides (MA) and requires them to be disposed of externally.

Mehdi Asgari; Samuel E. Bays; Benoit Forget; Rodolfo Ferrer

2007-09-01T23:59:59.000Z

354

Diffusion of sodium, potassium, calcium, manganese, and radon in tuff and clinoptilolite under leaching  

Science Journals Connector (OSTI)

Nuclear physics methods are used to determine the diffusion coefficients of Na, Ca, Mn, K, and 222Rn in clinoptilolite (Sokirnitsa occurrence, Ukraine) and in natural tuff (Yucca Mountain, Nevada, United States) ...

N. P. Dikii; A. N. Dovbnya; Yu. V. Lyashko; D. V. Medvedev

2011-07-01T23:59:59.000Z

355

The technical and economic impact of minor actinide transmutation in a sodium fast reactor  

SciTech Connect (OSTI)

Within the frame work of the French National Act of June 28, 2006 pertaining to the management of high activity, long-lived radioactive waste, one of the proposed processes consists in transmuting the Minor Actinides (MA) in the radial blankets of a Sodium Fast Reactor (SFR). With this option, we may assess the additional cost of the reactor by comparing two SFR designs, one with no Minor Actinides, and the other involving their transmutation. To perform this exercise, we define a reference design called SFRref, of 1500 MWe that is considered to be representative of the Reactor System. The SFRref mainly features a pool architecture with three pumps, six loops with one steam generator per loop. The reference core is the V2B core that was defined by the CEA a few years ago for the Reactor System. This architecture is designed to meet current safety requirements. In the case of transmutation, for this exercise we consider that the fertile blanket is replaced by two rows of assemblies having either 20% of Minor Actinides or 20% of Americium. The assessment work is performed in two phases. - The first consists in identifying and quantifying the technical differences between the two designs: the reference design without Minor Actinides and the design with Minor Actinides. The main differences are located in the reactor vessel, in the fuel handling system and in the intermediate storage area for spent fuel. An assessment of the availability is also performed so that the impact of the transmutation can be known. - The second consists in making an economic appraisal of the two designs. This work is performed using the CEA's SEMER code. The economic results are shown in relative values. For a transmutation of 20% of MA in the assemblies (S/As) and a hypothesis of 4 kW allowable for the washing device, there is a large external storage demanding a very long cooling time of the S/As. In this case, the economic impact may reach 5% on the capital part of the Levelized Unit Electricity Cost (LUEC). A diminished concentration at 10% of MA, reduces the size of the external storage and the cooling time of the assemblies becomes compatible with the management of the irradiated fuel. Even with a low allowable power for the washing device, the economic impact on the capital cost is less than 2.5%. (authors)

Gautier, G. M.; Morin, F. [Alternative Energy and Atomic Energy Commission, CEA, DEN, F - 13108 St Paul lez Durance (France); Dechelette, F.; Sanseigne, E. [Alternative Energy and Atomic Energy Commission, CEA, DEN DTN, F - 13108 St Paul lez Durance (France); Chabert, C. [Alternative Energy and Atomic Energy Commission, CEA, DEN, F - 13108 St Paul lez Durance (France)

2012-07-01T23:59:59.000Z

356

The Distribution Coefficients and Gasification Ratios of [1,2-{sup 14}C] Sodium Acetate for Various Paddy Soils in Japan  

SciTech Connect (OSTI)

For appropriate safety assessment of the disposal of TRU waste, distribution coefficients (K{sub d}) and gasification ratios of {sup 14}C labeled [1, 2-{sup 14}C] sodium acetate ({sup 14}C-NaOAc) were determined by batch sorption tests for 85 Japanese paddy soil samples. The soil studied were from four soil types: Andsol; Gley; Gray lowland; and Yellow. The range of K{sub d} values for all soil samples was from 7.5 to 295.2 mL g{sup -1}, and the mean value was 105.6 mL g{sup -1}. This mean value was higher than that of previous study (1). The high K{sub d} values of the present study could be a result of the properties of the paddy soils. The comparison of K{sub d} values by each soil type revealed statistically significant difference between Andsol and Gray lowland soils (P < 0.05). The soil type was one of the factors affecting partitioning of {sup 14}C-NaOAc. Gasification ratios ranged from 29.1% to 83.3%, and its mean value was 66.4% of the total {sup 14}C-NaOAc added. These results suggest that most of the radiocarbon in {sup 14}C-NaOAc will be released from soil into the air as gases. The gasification ratio between soil types was also compared, but no statistically significant difference was found. Gas production may be controlled by other than physicochemical properties of soil, for example by factors such as bacterial community. In addition, both the K{sub d} values and the gasification ratios for Gley soil were decreased according to the increase in pH although the underlaying mechanisms for this observation are not clear. (authors)

Ishii, N.; Takeda, H.; Uchida, S. [Office of Biospheric Assessment for Waste Disposal, National Institute of Radiological Sciences, Inage-ku, Chiba-shi (Japan)

2008-07-01T23:59:59.000Z

357

Environmental, health, and safety issues of sodium-sulfur batteries for electric and hybrid vehicles. Volume 1, Cell and battery safety  

SciTech Connect (OSTI)

This report is the first of four volumes that identify and assess the environmental, health, and safety issues involved in using sodium-sulfur (Na/S) battery technology as the energy source in electric and hybrid vehicles that may affect the commercialization of Na/S batteries. This and the other reports on recycling, shipping, and vehicle safety are intended to help the Electric and Hybrid Propulsion Division of the Office of Transportation Technologies in the US Department of Energy (DOE/EHP) determine the direction of its research, development, and demonstration (RD&D) program for Na/S battery technology. The reports review the status of Na/S battery RD&D and identify potential hazards and risks that may require additional research or that may affect the design and use of Na/S batteries. This volume covers cell design and engineering as the basis of safety for Na/S batteries and describes and assesses the potential chemical, electrical, and thermal hazards and risks of Na/S cells and batteries as well as the RD&D performed, under way, or to address these hazards and risks. The report is based on a review of the literature and on discussions with experts at DOE, national laboratories and agencies, universities, and private industry. Subsequent volumes will address environmental, health, and safety issues involved in shipping cells and batteries, using batteries to propel electric vehicles, and recycling and disposing of spent batteries. The remainder of this volume is divided into two major sections on safety at the cell and battery levels. The section on Na/S cells describes major component and potential failure modes, design, life testing and failure testing, thermal cycling, and the safety status of Na/S cells. The section on batteries describes battery design, testing, and safety status. Additional EH&S information on Na/S batteries is provided in the appendices.

Ohi, J.M.

1992-09-01T23:59:59.000Z

358

Detection of slow modulation wave diffusion in incommensurate barium sodium niobate by 93Nb two-dimensional exchange NMR  

Science Journals Connector (OSTI)

93Nb two-dimensional (2D) exchange NMR was used to study ultraslow motions in incommensurate barium sodium niobate (BSN) in the temperature range 500560 K. These 2D exchange data provide strong evidence for diffusionlike motion of the modulation wave in BSN. Such motions in BSN had been previously detected by using a complementary NMR experiment, the Hahn spin-echo decay. However, since the Hahn spin-echo decay technique cannot always distinguish unambiguously between different motional mechanisms, this 2D experiment provides definitive confirmation of modulation wave diffusion and rules out other possible motional mechanisms for the Hahn spin-echo decay in this system.

Ligia Muntean and David C. Ailion

2000-12-11T23:59:59.000Z

359

Thermal response evaluation of austenitic stainless steels due to random sodium temperature fluctuations using BEMSET and DINUS-3 codes  

SciTech Connect (OSTI)

The BEMSET code was developed for the thermal striping evaluation and was designed to deal with linear elastic strain mechanics in various reactor geometries. Then a combined thermal striping analysis was carried out for the flow guide tube of a Japanese prototype LMFBR using the BEMSET code and a thermohydraulics direct numerical simulation code DINUS-3. Calculational results simulated characteristics of the thermal striping phenomena reported in the past studies. An applicability of the combined method to the thermal striping analysis was assessed based on the discussions and the method can replace conventional experimental approaches using large scale sodium experiments in LMFBR designs.

Muramatsu, Toshiharu [Power Reactor and Nuclear Fuel Development Corp., O-arai, Ibaraki (Japan). O-arai Engineering Center

1996-12-01T23:59:59.000Z

360

Analysis of long-term flows resulting from large-scale sodium-water reactions in an LMFBR secondary system  

SciTech Connect (OSTI)

Leaks in LMFBR steam generators cannot entirely be prevented; thus the steam generators and the intermediate heat transport system (IHTS) of an LMFBR must be designed to withstand the effects of the leaks. A large-scale leak which might result from a sudden break of a steam generator tube, and the resulting sodium-water reaction (SWR) can generate large pressure pulses that propagate through the IHTS and exert large forces on the piping supports. This paper discusses computer programs for analyzing long-term flow and thermal effects in an LMFBR secondary system resulting from large-scale steam generator leaks, and the status of the development of the codes.

Shin, Y.W.; Chung, H.; Choi, U.S.; Wiedermann, A.H.; Ockert, C.E.

1984-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Investigations on interactions of sodium dodecyl sulfate and polyacryloamide molecules on calcium carbonate surface using radiotracer technique  

SciTech Connect (OSTI)

From the studies of sodium dodecyl sulfate (SDS) adsorption on nonflocculated and flocculated CaCO/sub 3/ precipitate it was found that on a CaCO/sub 3/ surface on which a polymer (polyacryloamide (PAA)) was previously adsorbed PAA and SDS complexes were formed. Studies of adsorption carried out on the function of the surface charge, SDS concentration, as well as flocculant concentration allowed a probable mechanism of SDS binding on flocculated CaCO/sub 3/ precipitate to be defined. In these studies a radiotracer technique was applied using SDS labeled with radioactive /sup 35/S for measurements of adsorption. 19 references.

Chibowski, S.

1980-08-01T23:59:59.000Z

362

Differential state-dependent modification of rat Na{sub v}1.6 sodium channels expressed in human embryonic kidney (HEK293) cells by the pyrethroid insecticides tefluthrin and deltamethrin  

SciTech Connect (OSTI)

We expressed rat Na{sub v}1.6 sodium channels in combination with the rat {beta}1 and {beta}2 auxiliary subunits in human embryonic kidney (HEK293) cells and evaluated the effects of the pyrethroid insecticides tefluthrin and deltamethrin on expressed sodium currents using the whole-cell patch clamp technique. Both pyrethroids produced concentration-dependent, resting modification of Na{sub v}1.6 channels, prolonging the kinetics of channel inactivation and deactivation to produce persistent 'late' currents during depolarization and tail currents following repolarization. Both pyrethroids also produced concentration dependent hyperpolarizing shifts in the voltage dependence of channel activation and steady-state inactivation. Maximal shifts in activation, determined from the voltage dependence of the pyrethroid-induced late and tail currents, were {approx} 25 mV for tefluthrin and {approx} 20 mV for deltamethrin. The highest attainable concentrations of these compounds also caused shifts of {approx} 5-10 mV in the voltage dependence of steady-state inactivation. In addition to their effects on the voltage dependence of inactivation, both compounds caused concentration-dependent increases in the fraction of sodium current that was resistant to inactivation following strong depolarizing prepulses. We assessed the use-dependent effects of tefluthrin and deltamethrin on Na{sub v}1.6 channels by determining the effect of trains of 1 to 100 5-ms depolarizing prepulses at frequencies of 20 or 66.7 Hz on the extent of channel modification. Repetitive depolarization at either frequency increased modification by deltamethrin by {approx} 2.3-fold but had no effect on modification by tefluthrin. Tefluthrin and deltamethrin were equally potent as modifiers of Na{sub v}1.6 channels in HEK293 cells using the conditions producing maximal modification as the basis for comparison. These findings show that the actions of tefluthrin and deltamethrin of Na{sub v}1.6 channels in HEK293 cells differ from the effects of these compounds on Na{sub v}1.6 channels in Xenopus oocytes and more closely reflect the actions of pyrethroids on channels in their native neuronal environment. -- Highlights: Black-Right-Pointing-Pointer We expressed rat Na{sub v}1.6 voltage-gated sodium channels in HEK293 cells. Black-Right-Pointing-Pointer Tefluthrin and deltamethrin caused resting modification of Na{sub v}1.6 channels. Black-Right-Pointing-Pointer Only deltamethrin exhibited use-dependent enhancement of modification. Black-Right-Pointing-Pointer State-dependent effects of pyrethroids are influenced by the cellular context. Black-Right-Pointing-Pointer Channels in HEK293 cells exhibit properties similar to native neuronal channels.

He, Bingjun [College of Life Sciences, Nankai University, Tianjin 300071 (China)] [College of Life Sciences, Nankai University, Tianjin 300071 (China); Soderlund, David M., E-mail: dms6@cornell.edu [Department of Entomology, Cornell University, New York State Agricultural Experiment Station, Geneva, NY 14456 (United States)

2011-12-15T23:59:59.000Z

363

Development of one-dimensional computer code DESOPT for thermal hydraulic design of sodium-heated once through steam generators  

Science Journals Connector (OSTI)

Once-through Steam Generator (SG) is a critical component of Liquid Metal Fast Breeder Reactor (LMFBR) plant. It is a counter current heat exchanger, in which heat is transferred from the hot sodium flowing on the shell side to water/steam in tube side. High pressure subcooled water enters the SG tube from bottom, gets heated up to saturation, goes through nucleate boiling, dry out and post dry out heat transfer, getting converted to saturated steam and finally gets superheated. For this the process design needs to be carried out accurately. A computer code DESOPT has been developed for the process design of straight vertical, serpentine and helical geometries and validated against reported designs in literature. Recently a test facility to test a 5.5 MWt sodium heated steam generator has been commissioned. The predictions of the code have been compared with the measurements and found satisfactory. This paper brings out different heat transfer mechanisms in SG and describes the one-dimensional code, its validation based on literature and in-house tests and presents the results of comparison between predicted and actual operation at different part loads.

G. Vaidyanathan; A.L. Kothandaraman; L.S. Siva Kumar; V. Vinod; I.B. Noushad; K.K. Rajan; P. Kalyanasundaram

2010-01-01T23:59:59.000Z

364

Laboratory performance testing of an extruded bitumen containing a surrogate, sodium nitrate-based, low-level aqueous waste  

SciTech Connect (OSTI)

Laboratory results of a comprehensive, regulatory performance test program, utilizing an extruded bitumen and a surrogate, sodium nitrate-based waste, have been compiled at the Oak Ridge National Laboratory (ORNL). Using a 53 millimeter, Werner and Pfleiderer extruder, operated by personnel of WasteChem Corporation of Paramus, New Jersey, laboratory-scale, molded samples of type three, air blown bitumen were prepared for laboratory performance testing. A surrogate, low-level, mixed liquid waste, formulated to represent an actual on-site waste at ORNL, containing about 30 wt % sodium nitrate, in addition to eight heavy metals, cold cesium and strontium was utilized. Samples tested contained three levels of waste loading: that is, forty, fifty and sixty wt % salt. Performance test results include the ninety day ANS 16.1 leach test, with leach indices reported for all cations and anions, in addition to the EP Toxicity test, at all levels of waste loading. Additionally, test results presented also include the unconfined compressive strength and surface morphology utilizing scanning electron microscopy. Data presented include correlations between waste form loading and test results, in addition to their relationship to regulatory performance requirements.

Mattus, A.J.; Kaczmarsky, M.M.

1986-12-15T23:59:59.000Z

365

National Mining Association Experimental Determination  

E-Print Network [OSTI]

National Mining Association Experimental Determination of Radon Fluxes over Water #12;Introduction research funded by the National Mining Association (NMA) regarding radon fluxes from water surfaces surfaces at uranium recovery operations are insignificant and approximate background soil fluxes for most

366

Structure Determination of Echovirus 1  

Science Journals Connector (OSTI)

In the structure determination of echovirus 1, subtle interactions between crystallographic and non-crystallographic symmetries caused the space group to be ambiguous, but also allowed significant short cuts in the molecular-replacement calculations.

Filman, D.J.

1998-11-01T23:59:59.000Z

367

Structure determination of porcine haemoglobin  

Science Journals Connector (OSTI)

To investigate a potential candidate material for making artificial red blood cells for supplement blood transfusion, the crystal structure of porcine haemoglobin was determined up to 1.8 ? resolution.

Lu, T.-H.

2000-03-01T23:59:59.000Z

368

Determining Cropland Share Rental Arrangements  

E-Print Network [OSTI]

Many crop producers rely heavily on rented land in their farming operations. With this publication, they can learn more about determining crop shares and the principles of crop share leases....

Dhuyvetter, Kevin C.; Kastens, Terry L.; Outlaw, Joe

1999-06-23T23:59:59.000Z

369

Determining the Appropriate Asset Allocation  

E-Print Network [OSTI]

Asset allocation largely determines the success of one's investments. This publication explains the different types of assets and how to choose the ones that best suit your goals and investment timeline....

Johnson, Jason; Polk, Wade

2002-08-12T23:59:59.000Z

370

CX-010493: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Determining Distribution Coefficients by Surface-Enhanced Raman Spectroscopy (SERS) CX(s) Applied: B3.6 Date: 05/14/2013 Location(s): South Carolina Offices(s): Savannah River Operations Office

371

Categorical Exclusion Determinations: Minnesota | Department...  

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

December 5, 2013 CX-011428: Categorical Exclusion Determination Staged, High-Pressure Oxy-Combustion Technology: Development and Scale-Up - Phase II CX(s) Applied: A9, A11 Date:...

372

Elementary Determinants for Electrical Engineers  

Science Journals Connector (OSTI)

... electrical engineering, determinants are useful, and Prof. Fleming showed many years ago how the resistances of networks can be computed by their means. The very complicated formulae which telephone ...

1923-04-28T23:59:59.000Z

373

Gender determination of avian embryo  

DOE Patents [OSTI]

Disclosed is a method for gender determination of avian embryos. During the embryo incubation process, the outer hard shells of eggs are drilled and samples of allantoic fluid are removed. The allantoic fluids are directly introduced into an ion mobility spectrometer (IMS) for analysis. The resulting spectra contain the relevant marker peaks in the positive or negative mode which correlate with unique mobilities which are sex-specific. This way, the gender of the embryo can be determined.

Daum, Keith A. (Idaho Falls, ID); Atkinson, David A. (Idaho Falls, ID)

2002-01-01T23:59:59.000Z

374

CX-011104: Categorical Exclusion Determination | Department of...  

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

Determination CX-011104: Categorical Exclusion Determination Coupled Thermo-Mechanical and Photo-Chemical Degradation Mechanisms that Determine the Reliability and...

375

Ligand exchange photochemistry of iodopentaamminerhodium (III) in a sodium/hydrogen Y type zeolite  

E-Print Network [OSTI]

for infrared study. Infrared spectrum of the ammonium ion band at -1 1450 cm and the zeolite background Calibration graph of ammonium ion concentration versus infrared absorption Correlation of the actual thickness of wafers of 33 38 41 43 zeolite... to determine the effects that the zeolite may have upon a photochemical reaction, iodopentaammine- rhodium (III) perchlorate has been prepared and its subsequent photo- aquation has been studied in solution as well as in the zeolite. A This thesis follows...

Camara, Michael Joseph

2012-06-07T23:59:59.000Z

376

Investigation of the influence of. cap alpha. irradiation on the valence states of the actinides. IX. Behavior of curium, americium, and plutonium in solutions of sodium perchlorate  

SciTech Connect (OSTI)

It was shown that during prolong intense ..cap alpha.. irradiation of concentrated weakly acid solutions of sodium perchlorate, containing curium(III), americium(III), and plutonium(IV), two types of precipitates are formed: amorphous and crystalline. It was established that in this case there is a substantial decrease in the acidity of the solution. It was found that the crystalline precipitate represents sodium chloride, while the amorphous precipitate consists of hydroxides of the actinides. In the amorphous precipitate neptunium is in the hexavalent state and americium in the tri- and pentavalent states.

Frolov, A.A.; Kornilov, A.S.; Vasil'ev, V.Ya.

1987-01-01T23:59:59.000Z

377

Post-test analysis of dryout test 7B' of the W-1 Sodium Loop Safety Facility Experiment with the SABRE-2P code. [LMFBR  

SciTech Connect (OSTI)

An understanding of conditions that may cause sodium boiling and boiling propagation that may lead to dryout and fuel failure is crucial in liquid-metal fast-breeder reactor safety. In this study, the SABRE-2P subchannel analysis code has been used to analyze the ultimate transient of the in-core W-1 Sodium Loop Safety Facility experiment. This code has a 3-D simple nondynamic boiling model which is able to predict the flow instability which caused dryout. In other analyses dryout has been predicted for out-of-core test bundles and so this study provides additional confirmation of the model.

Rose, S.D.; Dearing, J.F.

1981-01-01T23:59:59.000Z

378

Water-Soluble Complexes from Random Copolymer and Oppositely Charged Surfactant. 1. Complexes of Poly(ethylene glycol)-Based Cationic Random Copolymer and Sodium Dodecyl Sulfate  

Science Journals Connector (OSTI)

Water-Soluble Complexes from Random Copolymer and Oppositely Charged Surfactant. 1. Complexes of Poly(ethylene glycol)-Based Cationic Random Copolymer and Sodium Dodecyl Sulfate ... Preliminary studies on the solubility of the complexes by turbidity measurements with one of the most studied anionic surfactants, sodium dodecyl sulfate (SDS), demonstrate that complexes of the polymer with 68 mol % PEG content are insoluble in water. ... (angles are measured with respect to the direction of the laser beam) equipped with a 30 mW (GaAs, gallium arsenide) laser emitting vertically polarized light at wavelength ? = 690 nm. ...

C. K. Nisha; Pratyay Basak; Sunkara V. Manorama; Souvik Maiti; Kizhakkedathu N. Jayachandran

2003-02-26T23:59:59.000Z

379

RAPID DETERMINATION OF RA-226 IN ENVIRONMENTAL SAMPLES  

SciTech Connect (OSTI)

A new rapid method for the determination of {sup 226}Ra in environmental samples has been developed at the Savannah River Site Environmental Lab (Aiken, SC, USA) that can be used for emergency response or routine sample analyses. The need for rapid analyses in the event of a Radiological Dispersive Device or Improvised Nuclear Device event is well-known. In addition, the recent accident at Fukushima Nuclear Power Plant in March, 2011 reinforces the need to have rapid analyses for radionuclides in environmental samples in the event of a nuclear accident. {sup 226}Ra (T1/2 = 1,620 years) is one of the most toxic of the long-lived alpha-emitters present in the environment due to its long life and its tendency to concentrate in bones, which increases the internal radiation dose of individuals. The new method to determine {sup 226}Ra in environmental samples utilizes a rapid sodium hydroxide fusion method for solid samples, calcium carbonate precipitation to preconcentrate Ra, and rapid column separation steps to remove interferences. The column separation process uses cation exchange resin to remove large amounts of calcium, Sr Resin to remove barium and Ln Resin as a final purification step to remove {sup 225}Ac and potential interferences. The purified {sup 226}Ra sample test sources are prepared using barium sulfate microprecipitation in the presence of isopropanol for counting by alpha spectrometry. The method showed good chemical recoveries and effective removal of interferences. The determination of {sup 226}Ra in environmental samples can be performed in less than 16 h for vegetation, concrete, brick, soil, and air filter samples with excellent quality for emergency or routine analyses. The sample preparation work takes less than 6 h. {sup 225}Ra (T1/2 = 14.9 day) tracer is used and the {sup 225}Ra progeny {sup 217}At is used to determine chemical yield via alpha spectrometry. The rapid fusion technique is a rugged sample digestion method that ensures that any refractory radium particles are effectively digested. The preconcentration and column separation steps can also be applied to aqueous samples with good results.

Maxwell, S.

2012-01-03T23:59:59.000Z

380

CX-012303: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-012303: Categorical Exclusion Determination Post Combustion Carbon Capture Using Polyethylenimine (PEI) Functionalized Titanate Nanotubes CX(s)...

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

CX-007854: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-007854: Categorical Exclusion Determination Streamlining Solar Standards & Processes: The Southern California Rooftop Solar Challenge CX(s)...

382

CX-000292: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-000292: Categorical Exclusion Determination A Novel Biogas Desulphurization Sorbent Technology for Molten Carbonate Fuel Cell - Based Combined...

383

CX-000293: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-000293: Categorical Exclusion Determination A Novel Biogas Desulphurization Sorbent Technology for Molten Carbonate Fuel Cell - Based Combined...

384

CX-000294: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-000294: Categorical Exclusion Determination A Novel Biogas Desulphurization Sorbent Technology for Molten Carbonate Fuel Cell- Based Combined...

385

CX-001996: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-001996: Categorical Exclusion Determination Oklahoma State Energy Program (SEP) American Recovery and Reinvestment Act (ARRA) - Washita...

386

CX-001998: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-001998: Categorical Exclusion Determination Oklahoma State Energy Program (SEP) American Recovery and Reinvestment Act (ARRA) - Shawnee...

387

CX-004730: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-004730: Categorical Exclusion Determination Oklahoma State Energy Program American Recovery and Reinvestment Act - Oklahoma Municipal...

388

CX-007573: Categorical Exclusion Determination | Department of...  

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

3: Categorical Exclusion Determination CX-007573: Categorical Exclusion Determination Oklahoma State Energy Program American Recovery and Reinvestment Act - Oklahoma Municipal...

389

CX-008602: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-008602: Categorical Exclusion Determination Oklahoma State Energy Program- Oklahoma Municipal Power Authority Large Systems Request AO...

390

CX-007412: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-007412: Categorical Exclusion Determination OKLAHOMA State Energy Program American Recovery and Reinvestment Act - Oklahoma Municipal...

391

CX-009009: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-009009: Categorical Exclusion Determination "Oklahoma State Energy Program American Recovery and Reinvestment Act - Oklahoma Municipal...

392

CX-000771: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-000771: Categorical Exclusion Determination New York Revised Narrative Information Worksheet for Energy Efficiency Program for...

393

CX-012223: Categorical Exclusion Determination | Department of...  

Office of Environmental Management (EM)

& Publications CX-012402: Categorical Exclusion Determination CX-012224: Categorical Exclusion Determination National Offshore Wind Energy Grid Interconnection Study (NOWEGIS)...

394

CX-001459: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-001459: Categorical Exclusion Determination Air Quality VIII: An International Conference on Carbon Management, Mercury, Trace Elements,...

395

CX-012136: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-012136: Categorical Exclusion Determination Distributed Fiber Optic Arrays: Integrated Temperature and Seismic Sensing for Detection of Carbon...

396

CX-011013: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-011013: Categorical Exclusion Determination Distributed Fiber Optic Arrays: Integrated Temperature and Seismic Sensing for Detection of Carbon...

397

CX-011017: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-011017: Categorical Exclusion Determination Distributed Fiber Optic Arrays: Integrated Temperature and Seismic Sensing for Detection of Carbon...

398

CX-006140: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-006140: Categorical Exclusion Determination Revised Market Title for Energy Efficiency Program for Municipalities, Schools, Hospitals, Public...

399

CX-000669: Categorical Exclusion Determination | Department of...  

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

69: Categorical Exclusion Determination CX-000669: Categorical Exclusion Determination Illinois Energy Conservation Plan for State Facilities - Capital Development Board Projects...

400

CX-000670: Categorical Exclusion Determination | Department of...  

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

70: Categorical Exclusion Determination CX-000670: Categorical Exclusion Determination Energy Efficiency and Conservation Block Grant State of Illinois Categorical Exclusion...

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

CX-009310: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-009310: Categorical Exclusion Determination Optimization of Reservoir Storage Capacity in Different Depositional Environments (Rock...

402

CX-001473: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-001473: Categorical Exclusion Determination Direct Coal Liquefaction Process Development Date: 04022010 Location(s): Grand Forks, North...

403

CX-003975: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-003975: Categorical Exclusion Determination State Energy Program - American Recovery and Reinvestment Act Green Jobs Training Program -...

404

CX-011555: Categorical Exclusion Determination | Department of...  

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

Determination CX-011555: Categorical Exclusion Determination Managing Zirconium Chemistry and Phase Compatibility in Combined Process Separations for Minor Actinide...

405

Determine Institutional Change Sustainability Goals | Department...  

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

Determine Institutional Change Sustainability Goals Determine Institutional Change Sustainability Goals Institutional Change Continuous Improvement Cycle The first step in the...

406

CX-002556: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-002556: Categorical Exclusion Determination Technical Consultant Services to Assist City In Development of Energy Efficiency and Conservation...

407

CX-001278: Categorical Exclusion Determination | Department of...  

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

8: Categorical Exclusion Determination CX-001278: Categorical Exclusion Determination Energy Efficiency (EE) and Conservation Strategy, Technical Consultant, Revolving Loan...

408

CX-011610: Categorical Exclusion Determination | Department of...  

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

Determination CX-011610: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Training Exercises and Simulations under 10 CFR...

409

CX-011607: Categorical Exclusion Determination | Department of...  

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

Determination CX-011607: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Air Conditioning Systems for Existing Equipment...

410

CX-011598: Categorical Exclusion Determination | Department of...  

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

Determination CX-011598: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Building and Equipment Instrumentation under 10 CFR...

411

CX-009661: Categorical Exclusion Determination | Department of...  

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

Determination CX-009661: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Installation or Relocation of Machinery and...

412

CX-009664: Categorical Exclusion Determination | Department of...  

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

Determination CX-009664: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Routine Maintenance and Custodial Services under 10...

413

CX-011602: Categorical Exclusion Determination | Department of...  

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

Determination CX-011602: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Disconnection of Utilities under 10 CFR 1021,...

414

CX-011601: Categorical Exclusion Determination | Department of...  

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

Determination CX-011601: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Installation or Relocation of Machinery and...

415

CX-011597: Categorical Exclusion Determination | Department of...  

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

Determination CX-011597: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Facility Safety and Environmental Improvements under...

416

CX-011608: Categorical Exclusion Determination | Department of...  

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

Determination CX-011608: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Routine Maintenance and Custodial Services under 10...

417

CX-009657: Categorical Exclusion Determination | Department of...  

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

Determination CX-009657: Categorical Exclusion Determination "Mission Support Alliance Annual Categorical Exclusion for Site Characterization and Environmental Monitoring...

418

CX-009656: Categorical Exclusion Determination | Department of...  

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

Determination CX-009656: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Facility Safety and Environmental Improvements...

419

CX-011596: Categorical Exclusion Determination | Department of...  

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

Determination CX-011596: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Site Characterization and Environmental Monitoring...

420

CX-009662: Categorical Exclusion Determination | Department of...  

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

Determination CX-009662: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Training Exercises and Simulations under 10 CFR...

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

CX-009655: Categorical Exclusion Determination | Department of...  

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

Determination CX-009655: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Building and Equipment Instrumentation under 10 CFR...

422

CX-011604: Categorical Exclusion Determination | Department of...  

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

Determination CX-011604: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Polychlorinated Biphenyl Removal under 10 CFR 1021,...

423

CX-009668: Categorical Exclusion Determination | Department of...  

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

Determination CX-009668: Categorical Exclusion Determination Mission Support Alliance Annual Categorical Exclusion for Polychlorinated Biphenyl Removal under 10 CFR 1021,...

424

ALUMINUM READINESS EVALUATION FOR ALUMINUM REMOVAL AND SODIUM HYDROXIDE REGENRATION FROM HANFORD TANK WASTE BY LITHIUM HYDROTALCITE PRECIPITATION  

SciTech Connect (OSTI)

A Technology Readiness Evaluation (TRE) performed by AREV A Federal Services, LLC (AFS) for Washington River Protection Solutions, LLC (WRPS) shows the lithium hydrotalcite (LiHT) process invented and patented (pending) by AFS has reached an overall Technology Readiness Level (TRL) of 3. The LiHT process removes aluminum and regenerates sodium hydroxide. The evaluation used test results obtained with a 2-L laboratory-scale system to validate the process and its critical technology elements (CTEs) on Hanford tank waste simulants. The testing included detailed definition and evaluation for parameters of interest and validation by comparison to analytical predictions and data quality objectives for critical subsystems. The results of the TRE would support the development of strategies to further mature the design and implementation of the LiHT process as a supplemental pretreatment option for Hanford tank waste.

SAMS TL; MASSIE HL

2011-01-27T23:59:59.000Z

425

Sorbent selection and design considerations for uranium trapping. [H-151 alumina, XF-100 alumina, F-1 alumina, sodium fluoride  

SciTech Connect (OSTI)

The efficient removal of UF/sub 6/ from effluent streams can be accomplished through the selection of the best solid sorbent and the implementation of good design principles. Pressure losses, sorbent capacity, reaction kinetics, sorbent regeneration/uranium recovery requirements and the effects of other system components are the performance factors which are summarized. The commonly used uranium trapping materials highlighted are sodium fluoride, H-151 alumina, XF-100 alumina, and F-1 alumina. Sorbent selection and trap design have to be made on a case-by-case basis but the theoretical modeling studies and the evaluation of the performance factors presented can be used as a guide for other chemical trap applications.

Schultz, R.M.; Hobbs, W.E.; Norton, J.L.; Stephenson, M.J.

1981-07-01T23:59:59.000Z

426

Determining solar abundances using helioseismology  

E-Print Network [OSTI]

The recent downward revision of solar photospheric abundances of Oxygen and other heavy elements has resulted in serious discrepancies between solar models and solar structure as determined through helioseismology. In this work we investigate the possibility of determining the solar heavy-element abundance without reference to spectroscopy by using helioseismic data. Using the dimensionless sound-speed derivative in the solar convection zone, we find that the heavy element abundance, Z, of 0.0172 +/- 0.002, which is closer to the older, higher value of the abundances.

H. M. Antia; Sarbani Basu

2006-02-28T23:59:59.000Z

427

An Analysis of Methanol and Hydrogen Production via High-Temperature Electrolysis Using the Sodium Cooled Advanced Fast Reactor  

SciTech Connect (OSTI)

Integration of an advanced, sodium-cooled fast spectrum reactor into nuclear hybrid energy system (NHES) architectures is the focus of the present study. A techno-economic evaluation of several conceptual system designs was performed for the integration of a sodium-cooled Advanced Fast Reactor (AFR) with the electric grid in conjunction with wind-generated electricity. Cases in which excess thermal and electrical energy would be reapportioned within an integrated energy system to a chemical plant are presented. The process applications evaluated include hydrogen production via high temperature steam electrolysis and methanol production via steam methane reforming to produce carbon monoxide and hydrogen which feed a methanol synthesis reactor. Three power cycles were considered for integration with the AFR, including subcritical and supercritical Rankine cycles and a modified supercritical carbon dioxide modified Brayton cycle. The thermal efficiencies of all of the modeled power conversions units were greater than 40%. A thermal efficiency of 42% was adopted in economic studies because two of the cycles either performed at that level or could potentially do so (subcritical Rankine and S-CO2 Brayton). Each of the evaluated hybrid architectures would be technically feasible but would demonstrate a different internal rate of return (IRR) as a function of multiple parameters; all evaluated configurations showed a positive IRR. As expected, integration of an AFR with a chemical plant increases the IRR when must-take wind-generated electricity is added to the energy system. Additional dynamic system analyses are recommended to draw detailed conclusions on the feasibility and economic benefits associated with AFR-hybrid energy system operation.

Shannon M. Bragg-Sitton; Richard D. Boardman; Robert S. Cherry; Wesley R. Deason; Michael G. McKellar

2014-03-01T23:59:59.000Z

428

[alpha]-Decay damage effects in curium-doped titanate ceramic containing sodium-free high-level nuclear waste  

SciTech Connect (OSTI)

A polyphase titanate ceramic incorporating sodium-free simulated high-level nuclear waste was doped with 0.91 wt% of [sup 224]Cm to accelerate the effects of long-term self-irradiation arising from [alpha] decays. The ceramic included three main constituent minerals: hollandite, perovskite, and zirconolite, with some minor phases. Although hollandite showed the broadening of its X-ray diffraction lines and small lattice parameter changes during damage in growth, the unit cell was substantially unaltered. Perovskite and zirconolite, which are the primary hosts of curium, showed 2.7% and 2.6% expansions, respectively, of their unit cell volumes after a dose of 12 [times] 10[sup 17] [alpha] decays[center dot]g[sup [minus]1]. Volume swelling due to damage in growth caused an exponential (almost linear) decrease in density, which reached 1.7% after a dose of 12.4 [times] 10[sup 17] [alpha] decays[center dot]g[sup [minus]1]. Leach tests on samples that had incurred doses of 2.0 [times] 10[sup 17] and 4.5 [times] 10[sup 17] [alpha] decays[center dot]g[sup [minus]1] showed that the rates of dissolution of cesium and barium were similar to analogous leach rates from the equivalent cold ceramic, while strontium and calcium leach rates were 2--15 times higher. Although the cerium, molybdenum, strontium, and calcium leach rates in the present material were similar to those in the curium-doped sodium-bearing titanate ceramic reported previously, the cesium leach rate was 3--8 times lower.

Mitamura, Hisayoshi; Matsumoto, Seiichiro; Tsuboi, Takashi; Hashimoto, Masaaki; Togashi, Yoshihiro; Kanazawa, Hiroyuki (Japan Atomic Energy Research Inst., Ibaraki (Japan)); Stewart, M.W.A.; Vance, E.R.; Hart, K.P.; Ball, C.J. (Australian Nuclear Science and Technology Organization, Lucas Heights, New South Wales (Australia). Lucas Heights Research Labs.); White, T.J.

1994-09-01T23:59:59.000Z

429

RAPID FUSION METHOD FOR DETERMINATION OF PLUTONIUM ISOTOPES IN LARGE RICE SAMPLES  

SciTech Connect (OSTI)

A new rapid fusion method for the determination of plutonium in large rice samples has been developed at the Savannah River National Laboratory (Aiken, SC, USA) that can be used to determine very low levels of plutonium isotopes in rice. The recent accident at Fukushima Nuclear Power Plant in March, 2011 reinforces the need to have rapid, reliable radiochemical analyses for radionuclides in environmental and food samples. Public concern regarding foods, particularly foods such as rice in Japan, highlights the need for analytical techniques that will allow very large sample aliquots of rice to be used for analysis so that very low levels of plutonium isotopes may be detected. The new method to determine plutonium isotopes in large rice samples utilizes a furnace ashing step, a rapid sodium hydroxide fusion method, a lanthanum fluoride matrix removal step, and a column separation process with TEVA Resin? cartridges. The method can be applied to rice sample aliquots as large as 5 kg. Plutonium isotopes can be determined using alpha spectrometry or inductively-coupled plasma mass spectrometry (ICP-MS). The method showed high chemical recoveries and effective removal of interferences. The rapid fusion technique is a rugged sample digestion method that ensures that any refractory plutonium particles are effectively digested. The MDA for a 5 kg rice sample using alpha spectrometry is 7E-5 mBq g{sup -1}. The method can easily be adapted for use by ICP-MS to allow detection of plutonium isotopic ratios.

Maxwell, S.

2013-03-01T23:59:59.000Z

430

Comparison of sodium naphthenate and air-ionization corona discharge as surface treatments for the ethylene-tetrafluoroethylene polymer (ETFE) to improve adhesion between ETFE and acrylonitrile-butadiene-styrene polymer (ABS) in the presence of a cyanoacrylate adhesive (CAA)  

Science Journals Connector (OSTI)

This study compares two ethylene-tetrafluoroethylene (ETFE) surface activation treatments, namely chemical attack with a solution of sodium naphthenate and plasma erosion via air-ionization corona discharge in order to improve the adhesive properties of the ETFE. An experimental design was prepared for both treatments in order to assess the effect of the treatment characteristics on the tensile load needed to break the bond between the ETFE and the acrylonitrile-butadiene-styrene polymer (ABS) formed with a cyanoacrylate adhesive (CAA) applied between them. The reason for the selection of this problem is that both polymers are frequently used in the biomedical industry for their properties, and they need to be joined firmly in biomedical devices, and the cyanoacrylate adhesive is the adhesive traditionally used for fluoropolymers, in this case the ETFE, and the same CAA has also shown good adhesion with ABS. However, the strength of the bond for the triplet ETFE-CAA-ABS has not been reported and the improvement of the strength of the bond with surface treatments is not found in scholarly journals for modern medical devices such as stents and snares. Both treatments were compared based on the aforementioned design of experiments. The case where ETFE receives no surface treatment serves as the reference. The results indicated that the three factors evaluated (initial drying of the material, temperature of the chemical bath, and immersion time), and their interactions have no significant effect over the tensile load at failure (tensile strength) of the adhesive bond being evaluated. For the air-ionization corona discharge treatment, two factors were evaluated: discharge exposition time and air pressure. The results obtained from this experimental design indicate that there is no significant difference between the levels of the factors evaluated. These results were unexpected as the ranges used were representative of the maximum ranges permissible in manufacturing operations. As for the comparison of the treatments, it was determined that the treatments have statistically significant differences. It was also determined that there is a significant statistical difference between the processes where a surface treatment is performed and the process where no surface treatment is applied to the ETFE. The chemical treatment results in a higher tensile load at failure (tensile strength) of 276.6 N on average, the air ionization treatment has an average of 248.4 N, and the process with no treatment has the lower ultimate tensile strength average of 53 N. This comparison has demonstrated that the best treatment is the chemical treatment with sodium naphthenate under the conditions tested.

Ana Luc?a Johanning-Sol?s; Benito A Stradi-Granados

2014-01-01T23:59:59.000Z

431

Formation of Quantum-Degenerate Sodium Molecules A current frontier in the field of ultracold gases is the study of ultracold molecules. In  

E-Print Network [OSTI]

a Feshbach resonance [1]. More than 105 molecules were generated with a conversion efficiency of ~4%. High sodium molecules from an atomic Bose- Einstein condensate by ramping an applied magnetic field across trap. The small expansion velocity corresponds to a temperature of about 30 nK, characteristic of high

432

The aqueous phase in the interfacial synthesis of polycarbonates. Part 1. Ionic equilibria and experimental solubilities in the BPA-sodium hydroxide-water system  

Science Journals Connector (OSTI)

Part 1. Ionic equilibria and experimental solubilities in the BPA-sodium hydroxide-water system ... The effect of physicochemical properties of organic micropollutants on removal efficiencies over iron-tetrasulfophthalocyanine (FeTsPc)-immobilized Amberlite was investigated with one endocrine-disrupting chemical (EDC), bisphenol-A (BPA), and three ... ...

Philip G. Kosky; James M. Silva; Elizabeth A. Guggenheim

1991-03-01T23:59:59.000Z

433

Nuclear spin relaxation of sodium cations in bacteriophage Pf1 solutions D. N. Sobieski, N. R. Krueger, S. Vyas,a  

E-Print Network [OSTI]

Nuclear spin relaxation of sodium cations in bacteriophage Pf1 solutions D. N. Sobieski, N. R The nuclear magnetic resonance NMR spectra for the I=3/2 23 Na cation dissolved into filamentous bacteriophage the 23 Na nuclear quadrupole moment and the electric field gradient produced by the negatively charged Pf

Augustine, Mathew P.

434

Review Process to be determined  

E-Print Network [OSTI]

Program Proposals The request for Authorization to Plan (ATP) must be submitted through the above reviewChancellor VCAA Dean Review Process to be determined within each College Review by Campus-Wide Curriculum Review Body Review by Graduate Council Recommend Approval/Disapproval Refer for Revision Refer

Olsen, Stephen L.

435

CX-011193: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Categorical Exclusion Determination for Indoor, Small- and Pilot-Scale Research and Development CX(s) Applied: A9, B1.7, B3.6, B3.10, B3.12, B3.15, B5.1, B5.15 Date: 08/05/2013 Location(s): California Offices(s): Berkeley Site Office

436

CX-100019: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Determination of Rare Earths in Geothermal Brines and Evaluation of Potential Extraction Techniques CX(s) Applied: A9, B3.1, B3.6 Date: 12/13/2011 Location(s): California Offices(s): Golden Field Office Technology Office: Geothermal Technologies Award Number: DE-EE6750

437

Pyroprocessing of oxidized sodium-bonded fast reactor fuel - An experimental study of treatment options for degraded EBR-II fuel  

SciTech Connect (OSTI)

An experimental study was conducted to assess pyrochemical treatment options for degraded EBR-II fuel. As oxidized material, the degraded fuel would need to be converted back to metal to enable electrorefining within an existing electro-metallurgical treatment process. A lithium-based electrolytic reduction process was studied to assess the efficacy of converting oxide materials to metal with a particular focus on the impact of zirconium oxide and sodium oxide on this process. Bench-scale electrolytic reduction experiments were performed in LiCl-Li{sub 2}O at 650 C. degrees with combinations of manganese oxide (used as a surrogate for uranium oxide), zirconium oxide, and sodium oxide. In the absence of zirconium or sodium oxide, the electrolytic reduction of MnO showed nearly complete conversion to metal. The electrolytic reduction of a blend of MnO-ZrO{sub 2} in LiCl - 1 wt% Li{sub 2}O showed substantial reduction of manganese, but only 8.5% of the zirconium was found in the metal phase. The electrolytic reduction of the same blend of MnO-ZrO{sub 2} in LiCl - 1 wt% Li{sub 2}O - 6.2 wt% Na{sub 2}O showed substantial reduction of manganese, but zirconium reduction was even less at 2.4%. This study concluded that ZrO{sub 2} cannot be substantially reduced to metal in an electrolytic reduction system with LiCl - 1 wt% Li{sub 2}O at 650 C. degrees due to the perceived preferential formation of lithium zirconate. This study also identified a possible interference that sodium oxide may have on the same system by introducing a parasitic and cyclic reaction of dissolved sodium metal between oxidation at the anode and reduction at the cathode. When applied to oxidized sodium-bonded EBR-II fuel (e.g., U-10Zr), the prescribed electrolytic reduction system would not be expected to substantially reduce zirconium oxide, and the accumulation of sodium in the electrolyte could interfere with the reduction of uranium oxide, or at least render it less efficient.

Hermann, S.D.; Gese, N.J. [Separations Department, Idaho National Laboratory, P.O. Box 1625, Idaho Falls, ID 83415 (United States); Wurth, L.A. [Zinc Air Inc., 5314-A US Hwy 2 West, Columbia Falls, MT 59912 (United States)

2013-07-01T23:59:59.000Z

438

Notice of Preferred Sodium Bearing Waste Treatment Technology (DOE/EIS-0287) (08/03/05)  

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

598 598 Federal Register / Vol. 70, No. 148 / Wednesday, August 3, 2005 / Notices 1 The Final EIS refers to SBW as mixed transuranic waste/SBW. However, a determination that SBW is transuranic waste has not been made. overseas citizens, as well as the individual and combined number of such ballots returned and cast by such voters. (42 U.S.C. 1973ff-1(c)) 5. Individuals entitled to vote otherwise than in person under the Voter Accessibility for the Elderly and Handicapped Act (42 U.S.C. 1973ee- 1(b)(2)(B)(ii)) or any other Federal law. States must identify registrants who are entitled to cast an absentee ballot under such statutes as they are exempt from HAVA's 42 U.S.C. 15483(b)(2) identification requirements. F. What obligations do election officials have concerning the security of the

439

Sodium orthovanadate associated with pharmacological doses of ascorbate causes an increased generation of ROS in tumor cells that inhibits proliferation and triggers apoptosis  

SciTech Connect (OSTI)

Graphical abstract: -- Abstract: Pharmacological doses of ascorbate were evaluated for its ability to potentiate the toxicity of sodium orthovanadate (Na{sub 3}VO{sub 4}) in tumor cells. Cytotoxicity, inhibition of cell proliferation, generation of ROS and DNA fragmentation were assessed in T24 cells. Na{sub 3}VO{sub 4} was cytotoxic against T24 cells (EC{sub 50} = 5.8 ?M at 24 h), but in the presence of ascorbate (100 ?M) the EC{sub 50} fell to 3.3 ?M. Na{sub 3}VO{sub 4} plus ascorbate caused a strong inhibition of cell proliferation (up to 20%) and increased the generation of ROS (4-fold). Na{sub 3}VO{sub 4} did not directly cleave plasmid DNA, at this aspect no synergism was found occurring between Na{sub 3}VO{sub 4} and ascorbate once the resulting action of the combination was no greater than that of both substances administered separately. Cells from Ehrlich ascites carcinoma-bearing mice were used to determine the activity of antioxidant enzymes, the extent of the oxidative damage and the type of cell death. Na{sub 3}VO{sub 4} alone, or combined with ascorbate, increased catalase activity, but only Na{sub 3}VO{sub 4} plus ascorbate increased superoxide dismutase activity (up to 4-fold). Oxidative damage on proteins and lipids was higher due to the treatment done with Na{sub 3}VO{sub 4} plus ascorbate (23-fold). Ascorbate potentiated apoptosis in tumor cells from mice treated with Na{sub 3}VO{sub 4}. The results indicate that pharmacological doses of ascorbate enhance the generation of ROS induced by Na{sub 3}VO{sub 4} in tumor cells causing inhibition of proliferation and apoptosis. Apoptosis induced by orthovanadate and ascorbate is closer related to inhibition on Bcl-xL and activation of Bax. Our data apparently rule out a mechanism of cell demise p53-dependent or related to Cdk2 impairment.

Gnther, T-hat nia Mara Fischer; Kviecinski, Maicon Roberto; Baron, Carla Cristine; Felipe, Karina Bettega; Farias, Mirelle Sifroni; Ourique da Silva, Fabiana; Bcker, Ndia Cristina Falco [Departamento de Bioqumica, Universidade Federal de Santa Catarina, Florianpolis (Brazil)] [Departamento de Bioqumica, Universidade Federal de Santa Catarina, Florianpolis (Brazil); Pich, Claus Trger [Campus de Ararangu, Universidade Federal de Santa Catarina, Ararangu (Brazil)] [Campus de Ararangu, Universidade Federal de Santa Catarina, Ararangu (Brazil); Ferreira, Eduardo Antonio [Universidade de Braslia, Faculdade de Ceilndia, DF (Brazil)] [Universidade de Braslia, Faculdade de Ceilndia, DF (Brazil); Filho, Danilo Wilhelm [Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianpolis (Brazil)] [Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianpolis (Brazil); Verrax, Julien; Calderon, Pedro Buc [Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Universit Catholique de Louvain, Brussels (Belgium)] [Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Universit Catholique de Louvain, Brussels (Belgium); Pedrosa, Rozangela Curi, E-mail: rozangelapedrosa@gmail.com [Departamento de Bioqumica, Universidade Federal de Santa Catarina, Florianpolis (Brazil)

2013-01-18T23:59:59.000Z

440

Sodium to sodium carbonate conversion process  

DOE Patents [OSTI]

A method of converting radioactive alkali metal into a low level disposable solid waste material. The radioactive alkali metal is atomized and introduced into an aqueous caustic solution having caustic present in the range of from about 20 wt % to about 70 wt % to convert the radioactive alkali metal to a radioactive alkali metal hydroxide. The aqueous caustic containing radioactive alkali metal hydroxide and CO.sub.2 are introduced into a thin film evaporator with the CO.sub.2 present in an amount greater than required to convert the alkali metal hydroxide to a radioactive alkali metal carbonate, and thereafter the radioactive alkali metal carbonate is separated from the thin film evaporator as a dry powder. Hydroxide solutions containing toxic metal hydroxide including one or more metal ions of Sb, As, Ba, Be, Cd, Cr, Pb, Hg, Ni, Se, Ag and T1 can be converted into a low level non-hazardous waste using the thin film evaporator of the invention.

Herrmann, Steven D. (Idaho Falls, ID)

1997-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination nasi sodium" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Sodium to sodium carbonate conversion process  

DOE Patents [OSTI]

A method is described for converting radioactive alkali metal into a low level disposable solid waste material. The radioactive alkali metal is atomized and introduced into an aqueous caustic solution having caustic present in the range of from about 20 wt % to about 70 wt % to convert the radioactive alkali metal to a radioactive alkali metal hydroxide. The aqueous caustic containing radioactive alkali metal hydroxide and CO{sub 2} are introduced into a thin film evaporator with the CO{sub 2} present in an amount greater than required to convert the alkali metal hydroxide to a radioactive alkali metal carbonate, and thereafter the radioactive alkali metal carbonate is separated from the thin film evaporator as a dry powder. Hydroxide solutions containing toxic metal hydroxide including one or more metal ions of Sb, As, Ba, Be, Cd, Cr, Pb, Hg, Ni, Se, Ag and Tl can be converted into a low level non-hazardous waste using the thin film evaporator of the invention. 3 figs.

Herrmann, S.D.

1997-10-14T23:59:59.000Z

442

DOE Categorical Exclusion Determination Form  

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

MI-TRIBE-MATCH-E-BE-NASH-SHE-WISH BAND OF POTTAWATOMI MI-TRIBE-MATCH-E-BE-NASH-SHE-WISH BAND OF POTTAWATOMI INDIANS Location: Tribe MI-TRIBE-MATCH- E-BE-NASH-SHE- WISH BAND OF POTTAWATOMI INDIANS MI American Recovery and Reinvestment Act: Proposed Action or Project Description The Match-E-Be-Nash-She-Wish Tribe of Pottawatomi Indians of Michigan proposes to conduct energy audits and life cycle cost analyses for several Tribal homes (approximately 25). The proposed actions would involve planning and conducting energy audits, which may include environmental monitoring to determine building energy efficiency, for residential and Tribal buildings. Electricity and fuel consumption and associated costs would be determined. The audits are intended to identify potential energy savings. Conditions: None

443

Estimated Cost Description Determination Date:  

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

and posted 2/10/2011 and posted 2/10/2011 *Title, Location Estimated Cost Description Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain $50,000 FONSI: uncertain Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain FONSI: uncertain Total Estimated Cost $70,000 Attachment: Memo, Moody to Marcinowski, III, SUBJECT: NEPA 2011 APS for DOE-SRS, Dated: Annual NEPA Planning Summary Environmental Assessments (EAs) Expected to be Initiated in the Next 12 Months Department of Energy (DOE) Savannah River Site (SRS) Jan-11 Estimated Schedule (**NEPA Milestones) South Carolina Department of Health and Environmental Control (SCDHEC) issued a National Pollutant Discharge Elimination System (NPDES) Industrial Stormwater General Permit (IGP) # SCR000000 November 12, with an effective date of January

444

DOE Categorical Exclusion Determination Form  

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

U.S. Department of Energy Categorical Exclusion Determination Form Program or Field Office: Energy Efficiency and Conservation Block Grant Program Project Title CA-TRIBE-LOS COYOTES BAND OF CAHUILLA AND CUPENO INDIANS Location: Tribe CA-TRIBE-LOS COYOTES BAND OF CAHUILLA AND CUPENO INDIANS CA American Recovery and Reinvestment Act: Proposed Action or Project Description The Los Coyotes Band of Cahuilla and Cupeno Indians of California proposes to replace tribal members'

445

DOE Categorical Exclusion Determination Form  

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

U.S. Department of Energy Categorical Exclusion Determination Form Program or Field Office: TRIBAL ENERGY PROGRAM Project Title SD-TEP-ROSEBUD SIOUX TRIBE Location: Tribal ROSEBUD SIOUX TRIBE SD American Recovery and Reinvestment Act: Proposed Action or Project Description The Rosebud Sioux Tribe (RST) and Citizens Wind propose to complete the required pre-construction activities necessary to secure funding for the proposed 190 MW North Antelope Highlands wind farm,

446

DOE Categorical Exclusion Determination Form  

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

U.S. Department of Energy Categorical Exclusion Determination Form Program or Field Office: TRIBAL ENERGY PROGRAM NV Project Title NV-TEP-FALLON PAIUTE-SHOSHONE Location: Tribal FALLON PAIUTE-SHOSHONE American Recovery and Reinvestment Act: Proposed Action or Project Description The Fallon Paiute-Shoshone Tribe proposes to develop a sustainable energy park utilizing renewable energy resources at the Tribe's Reservation in Churchill County, Nevada. This proposed energy park

447

Method for determining gene knockouts  

DOE Patents [OSTI]

A method for determining candidates for gene deletions and additions using a model of a metabolic network associated with an organism, the model includes a plurality of metabolic reactions defining metabolite relationships, the method includes selecting a bioengineering objective for the organism, selecting at least one cellular objective, forming an optimization problem that couples the at least one cellular objective with the bioengineering objective, and solving the optimization problem to yield at least one candidate.

Maranas, Costa D; Burgard, Anthony R; Pharkya, Priti

2013-06-04T23:59:59.000Z

448

Toeplitz determinants with merging singularities  

E-Print Network [OSTI]

We study asymptotic behavior for determinants of $n\\times n$ Toeplitz matrices corresponding to symbols with two Fisher-Hartwig singularities at the distance $2t\\ge0$ from each other on the unit circle. We obtain large $n$ asymptotics which are uniform for $0gas, and a conjecture of Fyodorov and Keating on the second moment of powers of the characteristic polynomials of random matrices.

T. Claeys; I. Krasovsky

2014-10-28T23:59:59.000Z

449

DOE Categorical Exclusion Determination Form  

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

U.S. Department of Energy Categorical Exclusion Determination Form Program or Field Office: TRIBAL ENERGY PROGRAM OK Project Title OK-TEP-CHEROKEE NATION BUSINESSES Location: Tribal CHEROKEE NATION BUSINESSES American Recovery and Reinvestment Act: Proposed Action or Project Description The Cherokee Wind Energy Development proposed project is for development, design, and installation of a 127.5 megawatt wind farm to offset Tribal electrical load; sell excess electricity to local, regional, and

450

Operation of an ultrasonic flowmeter on a sodium loop of a fast breeder reactor  

Science Journals Connector (OSTI)

The flow of fluid in a pipe is determined from the upstream and downstream flight times of ultrasonic (4 MHz) pulses traveling obliquely across the pipe. Temperatureeffects on dimensions sonic velocity refraction angles etc. are compensated from the measured mean?pulse travel times. This mean?pulse travel time also yields mean fluid temperature. This permits a pair of instruments on the hot and cold leg of a heat transfer loop to give total power flow. Total time delays across the pipe were measured over the temperature range 35070 C and compared with values computed based on expansion coefficient and elastic modulus data from the Nuclear Materials Handbook. Ultrasonically measured flow rates were compared with the installed electromagnetic and hydrodynamic flowmeters as well as with a special neutron activation flow calibration technique. The transducers for the ultrasonic system were specially designed to be clamped to the outside of the hot pipe using gold foil between optically flat surfaces with a clamping force of 2000 N.

H. B. Karplus; G. A. Forster

1977-01-01T23:59:59.000Z

451

Integration of reverse osmosis and membrane crystallization for sodium sulphate recovery  

Science Journals Connector (OSTI)

Abstract Reverse osmosis and membrane crystallization are evaluated in this work as stand-alone and integrated technologies for the recovery of Na2SO4 from aqueous solutions. When SO2 is removed from flue gases by absorption in an aqueous solution and reacts with NaOH, a reusable product (i.e., Na2SO4) of industrial interest can be obtained. For stand-alone reverse osmosis, the effect of the concentration of the feed solution and pressure is studied. For membrane crystallization, the influence of the concentration and flow rate of the feed and osmotic solutions on the process performance has been determined. The characterization of the obtained crystals shows that Na2SO410H2O is obtained. From the experimental results, the potential for integration of reverse osmosis and membrane crystallization is simulated. It was concluded that using a reverse osmosis unit prior to the membrane crystallization unit minimizes the total membrane area in comparison with the stand-alone processes.

Wenqi Li; Bart Van der Bruggen; Patricia Luis

2014-01-01T23:59:59.000Z

452

Investigation of plant control strategies for the supercritical C0{sub 2}Brayton cycle for a sodium-cooled fast reactor using the plant dynamics code.  

SciTech Connect (OSTI)

The development of a control strategy for the supercritical CO{sub 2} (S-CO{sub 2}) Brayton cycle has been extended to the investigation of alternate control strategies for a Sodium-Cooled Fast Reactor (SFR) nuclear power plant incorporating a S-CO{sub 2} Brayton cycle power converter. The SFR assumed is the 400 MWe (1000 MWt) ABR-1000 preconceptual design incorporating metallic fuel. Three alternative idealized schemes for controlling the reactor side of the plant in combination with the existing automatic control strategy for the S-CO{sub 2} Brayton cycle are explored using the ANL Plant Dynamics Code together with the SAS4A/SASSYS-1 Liquid Metal Reactor (LMR) Analysis Code System coupled together using the iterative coupling formulation previously developed and implemented into the Plant Dynamics Code. The first option assumes that the reactor side can be ideally controlled through movement of control rods and changing the speeds of both the primary and intermediate coolant system sodium pumps such that the intermediate sodium flow rate and inlet temperature to the sodium-to-CO{sub 2} heat exchanger (RHX) remain unvarying while the intermediate sodium outlet temperature changes as the load demand from the electric grid changes and the S-CO{sub 2} cycle conditions adjust according to the S-CO{sub 2} cycle control strategy. For this option, the reactor plant follows an assumed change in load demand from 100 to 0 % nominal at 5 % reduction per minute in a suitable fashion. The second option allows the reactor core power and primary and intermediate coolant system sodium pump flow rates to change autonomously in response to the strong reactivity feedbacks of the metallic fueled core and assumed constant pump torques representing unchanging output from the pump electric motors. The plant behavior to the assumed load demand reduction is surprising close to that calculated for the first option. The only negative result observed is a slight increase in the intermediate inlet sodium temperatures by about 10 C. This temperature rise could presumably be precluded or significantly reduced through fine adjustment of the control rods and pump motors. The third option assumes that the reactor core power and primary and intermediate system flow rates are ideally reduced linearly in a programmed fashion that instantaneously matches the prescribed load demand. The calculated behavior of this idealized case reveals a number of difficulties because the control strategy for the S-CO{sub 2} cycle overcools the reactor potentially resulting in the calculation of sodium bulk freezing and the onset of sodium boiling. The results show that autonomous SFR operation may be viable for the particular assumed load change transient and deserves further investigation for other transients and postulated accidents.

Moisseytsev, A.; Sienicki, J. (Nuclear Engineering Division)

2011-04-12T23:59:59.000Z

453

Degradation of yttria-stabilized zirconia thermal barrier coatings by vanadium pentoxide, phosphorous pentoxide, and sodium sulfate  

SciTech Connect (OSTI)

The presence of vanadium, phosphorus, and sodium impurities in petcoke and coal/petcoke blends used in integrated gasification combined cycle (IGCC) plants warrants a clear understanding of high-temperature material degradation for the development of fuel-flexible gas turbines. In this study, degradation reactions of free-standing air plasma-sprayed (APS) yttria-stabilized zirconia (YSZ) in contact with V{sub 2}O{sub 5}, P{sub 2}O{sub 5}, and Na{sub 2}SO{sub 4} were investigated at temperatures up to 1200{sup o}C. Phase transformations and microstructural development were examined using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Molten V{sub 2}O{sub 5} reacted with solid YSZ to form ZrV{sub 2}O{sub 7} at temperatures below 747{sup o}C. However, at temperatures above 747{sup o}C, molten V{sub 2}O{sub 5} reacted with YSZ to form yttrium vanadate (YVO{sub 4}). The formation of YVO{sub 4} led to the depletion of the Y2O{sub 3} stabilizer and deleterious transformation to the monoclinic ZrO{sub 2} phase. In addition, studies on YSZ degradation by Na{sub 2}SO{sub 4} and a Na{sub 2}SO{sub 4}+V{sub 2}O{sub 5} mixture (50-50 mol%) showed that Na{sub 2}SO{sub 4} itself had no effect on the degradation of YSZ. However, in the presence of V{sub 2}O{sub 5} at high temperatures, Na{sub 2}SO{sub 4} forms vanadate compounds having a lower melting point such as sodium metavanadate (610{sup o}C), which was found to degrade YSZ by the formation of YVO{sub 4} at a relatively lower temperature of 700{sup o}C. P{sub 2}O{sub 5} was found to react with APS YSZ by the formation of ZrP{sub 2}O{sub 7} at all the temperatures studied. At temperatures as low as 200{sup o}C and as high as 1200{sup o}C, molten P{sub 2}O{sub 5} was observed to react with solid YSZ to yield ZrP{sub 2}O{sub 7}, which led to the depletion of ZrO{sub 2} in YSZ that promoted the formation of the fluorite-cubic ZrO{sub 2} phase.

Mohan, P.; Yuan, B.; Patterson, T.; Desai, V.H.; Sohn, Y.H. [University of Central Florida, Orlando, FL (United States)

2007-11-15T23:59:59.000Z

454

CX-007816: Categorical Exclusion Determination | Department of...  

Energy Savers [EERE]

Exclusion Determination CX-007816: Categorical Exclusion Determination Strategic Petroleum Reserve Bi-Annual Electrical Preventative Maintenance CX(s) Applied: B1.3 Date: 02...

455

CX-009794: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-009794: Categorical Exclusion Determination Strategic Petroleum Reserve Site Subsidence Surveys, 2013-2017 CX(s) Applied: B3.1 Date: 01022013...

456

CX-009151: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-009151: Categorical Exclusion Determination Simpson College Boiler Plant De-Centralization CX(s) Applied: B5.1 Date: 09242012 Location(s): Iowa...

457

CX-002964: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-002964: Categorical Exclusion Determination Wind Energy and Sustainable Energy Solutions CX(s) Applied: B3.11, A9 Date: 07092010...

458

CX-012137: Categorical Exclusion Determination | Department of...  

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Exclusion Determination CX-012137: Categorical Exclusion Determination Modular Carbon Dioxide Capture Facility Decommission - Building 84, Room 124 CX(s) Applied: B3.6...

459

CX-003442: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-003442: Categorical Exclusion Determination Post-Combustion Carbon Dioxide Capture for Existing Post-Combustion Boilers by Self-Concentrating Amine...

460

CX-011274: Categorical Exclusion Determination | Department of...  

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Determination CX-011274: Categorical Exclusion Determination Ion Advanced Solvent Carbon Dioxide Capture Pilot Project CX(s) Applied: A9, A11 Date: 09262013 Location(s):...

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461

CX-000586: Categorical Exclusion Determination | Department of...  

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Exclusion Determination CX-000586: Categorical Exclusion Determination 25A1455 - Carbon Dioxide Capture with Enzyme Synthetic Analogue Date: 12152009 Location(s):...

462

CX-011273: Categorical Exclusion Determination | Department of...  

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463

CX-003443: Categorical Exclusion Determination | Department of...  

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Exclusion Determination CX-003443: Categorical Exclusion Determination Post-Combustion Carbon Dioxide Capture for Existing Post-Combustion Boilers by Self-Concentrating Amine...

464

CX-011786: Categorical Exclusion Determination | Department of...  

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Determination CX-011786: Categorical Exclusion Determination Ion Advanced Solvent Carbon Dioxide Capture Pilot Project CX(s) Applied: A9, A11 Date: 02192014 Location(s):...

465

CX-011805: Categorical Exclusion Determination | Department of...  

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05: Categorical Exclusion Determination CX-011805: Categorical Exclusion Determination Carbon Dioxide Capture By Cold Membrane Operation with Actual Coal-Fired Power Plant Flue Gas...

466

CX-011276: Categorical Exclusion Determination | Department of...  

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Determination CX-011276: Categorical Exclusion Determination Ion Advanced Solvent Carbon Dioxide Capture Pilot Project CX(s) Applied: B3.6 Date: 09262013 Location(s):...

467

CX-011785: Categorical Exclusion Determination | Department of...  

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Determination CX-011785: Categorical Exclusion Determination Ion Advanced Solvent Carbon Dioxide Capture Pilot Project CX(s) Applied: A9, A11 Date: 02192014 Location(s):...

468

CX-009354: Categorical Exclusion Determination | Department of...  

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Determination CX-009354: Categorical Exclusion Determination High Resolution 3D Laser Imaging for Inspection, Maintenance, Repair and Operations - Phase II CX(s) Applied:...

469

CX-009331: Categorical Exclusion Determination | Department of...  

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470

CX-010658: Categorical Exclusion Determination | Department of...  

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Determination CX-010658: Categorical Exclusion Determination Analytical Development Laser Maintenance CX(s) Applied: B3.6 Date: 06172013 Location(s): South Carolina...

471

CX-000538: Categorical Exclusion Determination | Department of...  

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538: Categorical Exclusion Determination CX-000538: Categorical Exclusion Determination Laser Spectroscopy - Setup, Maintenance, and Instrumentation Development CX(s) Applied: B3.6...

472

CX-007858: Categorical Exclusion Determination | Department of...  

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Exclusion Determination CX-007858: Categorical Exclusion Determination Southwest Solar Transformation Initiative CX(s) Applied: A9, A11 Date: 01272012 Location(s):...

473

CX-011102: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-011102: Categorical Exclusion Determination American Solar Transformation Initiative CX(s) Applied: A11 Date: 08092013 Location(s):...

474

CX-008699: Categorical Exclusion Determination | Department of...  

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Exclusion Determination CX-008699: Categorical Exclusion Determination Old Highway Bridge Property Funding CX(s) Applied: B1.25 Date: 06122012 Location(s): Washington...

475

CX-001799: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-001799: Categorical Exclusion Determination Pennsylvania Ethanol-85 Corridor Project - Moyer Kutztown Station CX(s) Applied: B5.1 Date: 04202010...

476

CX-003471: Categorical Exclusion Determination | Department of...  

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Exclusion Determination CX-003471: Categorical Exclusion Determination Pennsylvania Ethanol Fuel (E85) Corridor Project - Lew's Service Center CX(s) Applied: B5.1 Date: 0823...

477

CX-012247: Categorical Exclusion Determination | Department of...  

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

Determination CX-012247: Categorical Exclusion Determination Installation of Solar Photovoltaic Systems CX(s) Applied: A9, B5.16 Date: 06182014 Location(s): Wisconsin, Wisconsin...

478

CX-004384: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-004384: Categorical Exclusion Determination Grant Rebate Program for Renewable Energy Projects at StateLocal Government Facilities - Front...

479

CX-012261: Categorical Exclusion Determination | Department of...  

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

Determination CX-012261: Categorical Exclusion Determination An Evaluation of the Carbon Sequestration Potential of the Cambro-Ordovician Strata of the Illinois CX(s)...

480

CX-011390: Categorical Exclusion Determination | Department of...  

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

0: Categorical Exclusion Determination CX-011390: Categorical Exclusion Determination Solar Panels and Environmental Education CX(s) Applied: A9, B3.14 Date: 12162013...

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481

CX-009004: Categorical Exclusion Determination | Department of...  

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04: Categorical Exclusion Determination CX-009004: Categorical Exclusion Determination "Solar Panels on Hudson County Facilities CX(s) Applied: B5.16 Date: 08272012 Location(s):...

482

CX-007082: Categorical Exclusion Determination | Department of...  

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Exclusion Determination CX-007082: Categorical Exclusion Determination Provide Telecommunications Cable to Buildings 6750 and 6753 CX(s) Applied: B1.7 Date: 06092011...

483

CX-012164: Categorical Exclusion Determination | Department of...  

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Exclusion Determination CX-012164: Categorical Exclusion Determination Vapor Space Corrosion Testing of Carbon Steel CX(s) Applied: B3.6 Date: 04292014 Location(s): South...

484

CX-007925: Categorical Exclusion Determination | Department of...  

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Determination CX-007925: Categorical Exclusion Determination Severe Environment Corrosion and Erosion Research Facility CX(s) Applied: B3.6 Date: 02222012 Location(s):...

485

CX-008642: Categorical Exclusion Determination | Department of...  

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

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486

CX-006048: Categorical Exclusion Determination | Department of...  

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Determination CX-006048: Categorical Exclusion Determination Severe Environmental Corrosion & Erosion Research Facility (SECERF) CX(s) Applied: B3.6 Date: 06082011...

487

CX-006471: Categorical Exclusion Determination | Department of...  

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

Determination CX-006471: Categorical Exclusion Determination Air Awareness Campaign Electric Car Charging Station CX(s) Applied: B5.1 Date: 08042011 Location(s): Greenville,...