Sample records for foam view document

  1. September 2013 Most Viewed Documents for Biology And Medicine...

    Office of Scientific and Technical Information (OSTI)

    September 2013 Most Viewed Documents for Biology And Medicine Science Subject Feed Drug Retention Times Center for Human Reliability Studies (2007) 29 > Oleoresin Capsicum...

  2. March 2014 Most Viewed Documents for Biology And Medicine | OSTI...

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    March 2014 Most Viewed Documents for Biology And Medicine Science Subject Feed Carbon Dioxide Sequestering Using Microalgal Systems Daniel J. Stepan; Richard E. Shockey; Thomas A....

  3. January 2013 Most Viewed Documents for Power Generation And Distributi...

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    January 2013 Most Viewed Documents for Power Generation And Distribution Lessons from Large-Scale Renewable Energy Integration Studies: Preprint Bird, L.; Milligan, M. Small punch...

  4. March 2015 Most Viewed Documents for Biology And Medicine | OSTI...

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    March 2015 Most Viewed Documents for Biology And Medicine Measuring dopamine release in the human brain with PET Volkow, N.D. Brookhaven National Lab., Upton, NY (United...

  5. June 2014 Most Viewed Documents for Fission And Nuclear Technologies...

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    Viewed Documents for Fission And Nuclear Technologies Behavior of spent nuclear fuel in water pool storage Johnson, A.B. Jr. (1977) 78 Estimation of gas leak rates through very...

  6. Foam Micromechanics

    SciTech Connect (OSTI)

    Kraynik, A.M.; Neilsen, M.K.; Reinelt, D.A.; Warren, W.E.

    1998-11-03T23:59:59.000Z

    Foam evokes many different images: waves breaking at the seashore, the head on a pint of Guinness, an elegant dessert, shaving, the comfortable cushion on which you may be seated... From the mundane to the high tech, foams, emulsions, and cellular solids encompass a broad range of materials and applications. Soap suds, mayonnaise, and foamed polymers provide practical motivation and only hint at the variety of materials at issue. Typical of mukiphase materiaIs, the rheoIogy or mechanical behavior of foams is more complicated than that of the constituent phases alone, which may be gas, liquid, or solid. For example, a soap froth exhibits a static shear modulus-a hallmark of an elastic solid-even though it is composed primarily of two Newtonian fluids (water and air), which have no shear modulus. This apparent paradox is easily resolved. Soap froth contains a small amount of surfactant that stabilizes the delicate network of thin liq- uid films against rupture. The soap-film network deforms in response to a macroscopic strain; this increases interracial area and the corresponding sur- face energy, and provides the strain energy of classical elasticity theory [1]. This physical mechanism is easily imagined but very challenging to quantify for a realistic three-dimensional soap froth in view of its complex geome- try. Foam micromechanics addresses the connection between constituent properties, cell-level structure, and macroscopic mechanical behavior. This article is a survey of micromechanics applied to gas-liquid foams, liquid-liquid emulsions, and cellular solids. We will focus on static response where the foam deformation is very slow and rate-dependent phenomena such as viscous flow can be neglected. This includes nonlinear elasticity when deformations are large but reversible. We will also discuss elastic- plastic behavior, which involves yield phenomena. Foam structures based on polyhedra packed to fill space provide a unify- ing geometrical theme. Because a two-dimensional situation is always easier to visualize and usually easier to analyze, the roots of foam micromechanics lie in the plane packed with polygons. There are striking similarities as well as obvious differences between 2D and 3D.

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    Documents for Mathematics And Computing Cybersecurity through Real-Time Distributed Control Systems Kisner, Roger A ORNL; Manges, Wayne W ORNL; MacIntyre, Lawrence Paul...

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    Documents for Power Generation And Distribution Science Subject Feed Seventh Edition Fuel Cell Handbook NETL (2004) 118 > Electric power high-voltage transmission lines:...

  9. April 2013 Most Viewed Documents for Biology And Medicine | OSTI...

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    Delivery and Gene Transfection Daniela Rodica Radu (2005) 84 > Advisory Committee on human radiation experiments. Supplemental Volume 2a, Sources and documentation appendices....

  10. March 2015 Most Viewed Documents for Mathematics And Computing...

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    system solver Petzold, L.R. (1982) 98 Health and environmental effects document on geothermal energy: 1981 Layton, D.W.; Anspaugh, L.R.; O'Banion, K.D. (1981) 95 Comparison of...

  11. June 2015 Most Viewed Documents for Mathematics And Computing...

    Office of Scientific and Technical Information (OSTI)

    (1997) 53 PC-1D installation manual and user's guide Basore, P.A. (1991) 52 Conduction heat transfer solutions VanSant, J.H. (1983) 52 Health and environmental effects document...

  12. April 2013 Most Viewed Documents for Energy Storage, Conversion, And

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternativeOperational Management » History » Manhattanand

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  15. Forming foam structures with carbon foam substrates

    DOE Patents [OSTI]

    Landingham, Richard L.; Satcher, Jr., Joe H.; Coronado, Paul R.; Baumann, Theodore F.

    2012-11-06T23:59:59.000Z

    The invention provides foams of desired cell sizes formed from metal or ceramic materials that coat the surfaces of carbon foams which are subsequently removed. For example, metal is located over a sol-gel foam monolith. The metal is melted to produce a metal/sol-gel composition. The sol-gel foam monolith is removed, leaving a metal foam.

  16. Foam patterns

    DOE Patents [OSTI]

    Chaudhry, Anil R; Dzugan, Robert; Harrington, Richard M; Neece, Faurice D; Singh, Nipendra P; Westendorf, Travis

    2013-11-26T23:59:59.000Z

    A method of creating a foam pattern comprises mixing a polyol component and an isocyanate component to form a liquid mixture. The method further comprises placing a temporary core having a shape corresponding to a desired internal feature in a cavity of a mold and inserting the mixture into the cavity of the mold so that the mixture surrounds a portion of the temporary core. The method optionally further comprises using supporting pins made of foam to support the core in the mold cavity, with such pins becoming integral part of the pattern material simplifying subsequent processing. The method further comprises waiting for a predetermined time sufficient for a reaction from the mixture to form a foam pattern structure corresponding to the cavity of the mold, wherein the foam pattern structure encloses a portion of the temporary core and removing the temporary core from the pattern independent of chemical leaching.

  17. Foam Transport in Porous Media - A Review

    SciTech Connect (OSTI)

    Zhang, Z. F.; Freedman, Vicky L.; Zhong, Lirong

    2009-11-11T23:59:59.000Z

    Amendment solutions with or without surfactants have been used to remove contaminants from soil. However, it has drawbacks such that the amendment solution often mobilizes the plume, and its movement is controlled by gravity and preferential flow paths. Foam is an emulsion-like, two-phase system in which gas cells are dispersed in a liquid and separated by thin liquid films called lamellae. Potential advantages of using foams in sub-surface remediation include providing better control on the volume of fluids injected, uniformity of contact, and the ability to contain the migration of contaminant laden liquids. It is expected that foam can serve as a carrier of amendments for vadose zone remediation, e.g., at the Hanford Site. As part of the U.S. Department of Energys EM-20 program, a numerical simulation capability will be added to the Subsurface Transport Over Multiple Phases (STOMP) flow simulator. The primary purpose of this document is to review the modeling approaches of foam transport in porous media. However, as an aid to understanding the simulation approaches, some experiments under unsaturated conditions and the processes of foam transport are also reviewed. Foam may be formed when the surfactant concentration is above the critical micelle concentration. There are two main types of foams the ball foam (microfoam) and the polyhedral foam. The characteristics of bulk foam are described by the properties such as foam quality, texture, stability, density, surface tension, disjoining pressure, etc. Foam has been used to flush contaminants such as metals, organics, and nonaqueous phase liquids from unsaturated soil. Ball foam, or colloidal gas aphrons, reportedly have been used for soil flushing in contaminated site remediation and was found to be more efficient than surfactant solutions on the basis of weight of contaminant removed per gram of surfactant. Experiments also indicate that the polyhedral foam can be used to enhance soil remediation. The transport of foam in porous media is complicated in that the number of lamellae present governs flow characteristics such as viscosity, relative permeability, fluid distribution, and interactions between fluids. Hence, foam is a non-Newtonian fluid. During transport, foam destruction and formation occur. The net result of the two processes determines the foam texture (i.e., bubble density). Some of the foam may be trapped during transport. According to the impacts of the aqueous and gas flow rates, foam flow generally has two regimes weak and strong foam. There is also a minimum pressure gradient to initiate foam flow and a critical capillary for foam to be sustained. Similar to other fluids, the transport of foam is described by Darcys law with the exception that the foam viscosity is variable. Three major approaches to modeling foam transport in porous media are the empirical, semi-empirical, and mechanistic methods. Mechanistic approaches can be complete in principal but may be difficult to obtain reliable parameters, whereas empirical and semi-empirical approaches can be limited by the detail used to describe foam rheology and mobility. Mechanistic approaches include the bubble population-balance model, the network/percolation theory, the catastrophe theory, and the filtration theory. Among these methods, all were developed for modeling polyhedral foam with the exception that the method based on the filtration theory was for the ball foam (microfoam).

  18. Liquid foams of graphene

    E-Print Network [OSTI]

    Alcazar Jorba, Daniel

    2012-01-01T23:59:59.000Z

    Liquid foams are dispersions of bubbles in a liquid. Bubbles are stabilized by foaming agents that position at the interface between the gas and the liquid. Most foaming agents, such as the commonly used sodium dodecylsulfate, ...

  19. Document

    Energy Savers [EERE]

    5320 Federal Register Vol. 75, No. 204 Friday, October 22, 2010 Notices intervene or protest must serve a copy of that document on the Applicant. Notice is hereby given that...

  20. Document:

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    position monitor (BPM) is on the order of a few milliseconds, the cooling effect due to remote water convection is limited. In addition, in view of the localized power input, it...

  1. Rhetoric, World-view, and Strategy in United States National Security Strategy Documents

    E-Print Network [OSTI]

    Cram, Travis J.

    2014-08-31T23:59:59.000Z

    to solve global problems and manage threats requires that these audiences buy-in to the presidents assessment of threats and possible solutions. Evaluating NSS documents as instances of symbolic action may enable critics to understand how NSS documents... the United States as the unwilling, virtuous victim in order to legitimize defense build-ups, explain policy failures, or warrant American military interventions abroad (Ivie, 1984; Klope, 1986). Reagans approach to nuclear weapons and missile defenses...

  2. document

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  3. Documents

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEA : Papers69 Federal Register / Vol.PREDICTINGvN3Documents

  4. P2P Views Over Annotated Documents Konstantinos Karanasos, Ioana Manolescu

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    . Publication of such resources is inherently distributed. One could consider up- loading all published content] and social networks' tagging are among the most common methods to express annotations. Here, we designate and annotations. At the core of content sharing in AnnoVIP stand materialized views over the whole network content

  5. April 2013 Most Viewed Documents for Materials | OSTI, US Dept of Energy,

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  15. Foam process models.

    SciTech Connect (OSTI)

    Moffat, Harry K.; Noble, David R.; Baer, Thomas A. (Procter & Gamble Co., West Chester, OH); Adolf, Douglas Brian; Rao, Rekha Ranjana; Mondy, Lisa Ann

    2008-09-01T23:59:59.000Z

    In this report, we summarize our work on developing a production level foam processing computational model suitable for predicting the self-expansion of foam in complex geometries. The model is based on a finite element representation of the equations of motion, with the movement of the free surface represented using the level set method, and has been implemented in SIERRA/ARIA. An empirically based time- and temperature-dependent density model is used to encapsulate the complex physics of foam nucleation and growth in a numerically tractable model. The change in density with time is at the heart of the foam self-expansion as it creates the motion of the foam. This continuum-level model uses an homogenized description of foam, which does not include the gas explicitly. Results from the model are compared to temperature-instrumented flow visualization experiments giving the location of the foam front as a function of time for our EFAR model system.

  16. High performance polymeric foams

    SciTech Connect (OSTI)

    Gargiulo, M.; Sorrentino, L. [Institute for Composite and Biomedical Materials (IMCB)-CNR, P.le Tecchio 80, 80125 Naples (Italy); Iannace, S. [Institute for Composite and Biomedical Materials (IMCB)-CNR, P.le Tecchio 80, 80125 Naples (Italy) and Technological District on Polymeric and Composite Materials Engineering and Structures (IMAST), P.le E.Fermi 1, location Porto del Granatello, 80055 Portici (Naples)

    2008-08-28T23:59:59.000Z

    The aim of this work was to investigate the foamability of high-performance polymers (polyethersulfone, polyphenylsulfone, polyetherimide and polyethylenenaphtalate). Two different methods have been used to prepare the foam samples: high temperature expansion and two-stage batch process. The effects of processing parameters (saturation time and pressure, foaming temperature) on the densities and microcellular structures of these foams were analyzed by using scanning electron microscopy.

  17. Electrically conductive rigid polyurethane foam

    DOE Patents [OSTI]

    Neet, T.E.; Spieker, D.A.

    1983-12-08T23:59:59.000Z

    A rigid, moldable polyurethane foam comprises about 2 to 10 weight percent, based on the total foam weight, of a carbon black which is CONDUCTEX CC-40-220 or CONDUCTEX SC, whereby the rigid polyurethane foam is electrically conductive and has essentially the same mechanical properties as the same foam without carbon black added.

  18. Electrically conductive rigid polyurethane foam

    DOE Patents [OSTI]

    Neet, Thomas E. (Grandview, MO); Spieker, David A. (Olathe, KS)

    1985-03-19T23:59:59.000Z

    A rigid, polyurethane foam comprises about 2-10 weight percent, based on the total foam weight, of a carbon black which is CONDUCTEX CC-40-220 or CONDUCTEX SC, whereby the rigid polyurethane foam is electrically conductive and has essentially the same mechanical properties as the same foam without carbon black added.

  19. Low density microcellular foams

    DOE Patents [OSTI]

    Aubert, James H. (Albuquerque, NM); Clough, Roger L. (Albuquerque, NM); Curro, John G. (Placitas, NM); Quintana, Carlos A. (Albuquerque, NM); Russick, Edward M. (Albuquerque, NM); Shaw, Montgomery T. (Mansfield Center, CT)

    1987-01-01T23:59:59.000Z

    Low density, microporous polymer foams are provided by a process which comprises forming a solution of polymer and a suitable solvent followed by rapid cooling of the solution to form a phase-separated system and freeze the phase-separated system. The phase-separated system comprises a polymer phase and a solvent phase, each of which is substantially continuous within the other. The morphology of the polymer phase prior to and subsequent to freezing determine the morphology of the resultant foam. Both isotropic and anisotropic foams can be produced. If isotropic foams are produced, the polymer and solvent are tailored such that the solution spontaneously phase-separates prior to the point at which any component freezes. The morphology of the resultant polymer phase determines the morphology of the resultant foam and the morphology of the polymer phase is retained by cooling the system at a rate sufficient to freeze one or both components of the system before a change in morphology can occur. Anisotropic foams are produced by forming a solution of polymer and solvent that will not phase separate prior to freezing of one or both components of the solution. In such a process, the solvent typically freezes before phase separation occurs. The morphology of the resultant frozen two-phase system determines the morphology of the resultant foam. The process involves subjecting the solution to essentially one-dimensional cooling. Means for subjecting such a solvent to one-dimensional cooling are also provided. Foams having a density of less than 0.1 g/cc and a uniform cell size of less than 10 .mu.m and a volume such that the foams have a length greater than 1 cm are provided.

  20. Low density microcellular foams

    DOE Patents [OSTI]

    Aubert, J.H.; Clough, R.L.; Curro, J.G.; Quintana, C.A.; Russick, E.M.; Shaw, M.T.

    1985-10-02T23:59:59.000Z

    Low density, microporous polymer foams are provided by a process which comprises forming a solution of polymer and a suitable solvent followed by rapid cooling of the solution to form a phase-separated system and freeze the phase-separated system. The phase-separated system comprises a polymer phase and a solvent phase, each of which is substantially continuous within the other. The morphology of the polymer phase prior to and subsequent to freezing determine the morphology of the resultant foam. Both isotropic and anisotropic foams can be produced. If isotropic foams are produced, the polymer and solvent are tailored such that the solution spontaneously phase-separates prior to the point at which any component freezes. The morphology of the resultant polymer phase determines the morphology of the reusltant foam and the morphology of the polymer phase is retained by cooling the system at a rate sufficient to freeze one or both components of the system before a change in morphology can occur. Anisotropic foams are produced by forming a solution of polymer and solvent that will not phase separate prior to freezing of one or both components of the solution. In such a process, the solvent typically freezes before phase separation occurs. The morphology of the resultant frozen two-phase system determines the morphology of the resultant foam. The process involves subjecting the solution to essentially one-dimensional cooling. Foams having a density of less than 0.1 g/cc and a uniform cell size of less than 10 ..mu..m and a volume such that the foams have a length greater than 1 cm are provided.

  1. Foam encapsulated targets

    DOE Patents [OSTI]

    Nuckolls, John H. (Livermore, CA); Thiessen, Albert R. (Livermore, CA); Dahlbacka, Glen H. (Livermore, CA)

    1983-01-01T23:59:59.000Z

    Foam encapsulated laser-fusion targets wherein a quantity of thermonuclear fuel is embedded in low density, microcellular foam which serves as an electron conduction channel for symmetrical implosion of the fuel by illumination of the target by one or more laser beams. The fuel, such as DT, is contained within a hollow shell constructed of glass, for example, with the foam having a cell size of preferably no greater than 2 .mu.m, a density of 0.065 to 0.6.times.10.sup.3 kg/m.sup.3, and external diameter of less than 200 .mu.m.

  2. Rigid zeolite containing polyurethane foams

    DOE Patents [OSTI]

    Frost, C.B.

    1984-05-18T23:59:59.000Z

    A closed cell rigid polyurethane foam has been prepared which contains up to about 60% by weight of molecular sieves capable of sorbing molecules with effective critical diameters of up to about 10 A. The molecular sieve component of the foam can be preloaded with catalysts or with reactive compounds that can be released upon activation of the foam to control and complete crosslinking after the foam is formed. The foam can also be loaded with water or other flame-retarding agents, after completion. Up to about 50% of the weight of the isocyanate component of the foam can be replaced by polyimide resin precursors for incorporation into the final polymeric network.

  3. Rigid zeolite containing polyurethane foams

    DOE Patents [OSTI]

    Frost, Charles B. (Livermore, CA)

    1985-01-01T23:59:59.000Z

    A closed cell rigid polyurethane foam has been prepared which contains up to about 60% by weight of molecular sieves capable of sorbing molecules with effective critical diameters of up to about 10 .ANG.. The molecular sieve component of the foam can be preloaded with catalysts or with reactive compounds that can be released upon activation of the foam to control and complete crosslinking after the foam is formed. The foam can also be loaded with water or other flame-retarding agents, after completion. Up to about 50% of the weight of the isocyanate component of the foam can be replaced by polyimide resin precursors for incorporation into the final polymeric network.

  4. Low density metal hydride foams

    DOE Patents [OSTI]

    Maienschein, Jon L. (Oakland, CA); Barry, Patrick E. (Pleasant Hill, CA)

    1991-01-01T23:59:59.000Z

    Disclosed is a low density foam having a porosity of from 0 to 98% and a density less than about 0.67 gm/cc, prepared by heating a mixture of powered lithium hydride and beryllium hydride in an inert atmosphere at a temperature ranging from about 455 to about 490 K for a period of time sufficient to cause foaming of said mixture, and cooling the foam thus produced. Also disclosed is the process of making the foam.

  5. Low density microcellular foams

    DOE Patents [OSTI]

    LeMay, James D. (Castro Valley, CA)

    1991-01-01T23:59:59.000Z

    Disclosed is a process of producing microcellular foam which comprises the steps of: (a) selecting a multifunctional epoxy oligomer resin; (b) mixing said epoxy resin with a non-reactive diluent to form a resin-diluent mixture; (c) forming a diluent containing cross-linked epoxy gel from said resin-diluent mixture; (d) replacing said diluent with a solvent therefore; (e) replacing said solvent with liquid carbon dioxide; and (f) vaporizing off said liquid carbon dioxide under supercritical conditions, whereby a foam having a density in the range of 35-150 mg/cc and cell diameters less than about 1 .mu.m is produced. Also disclosed are the foams produced by the process.

  6. Low density microcellular foams

    DOE Patents [OSTI]

    LeMay, J.D.

    1991-11-19T23:59:59.000Z

    Disclosed is a process of producing microcellular foam which comprises the steps of: (a) selecting a multifunctional epoxy oligomer resin; (b) mixing said epoxy resin with a non-reactive diluent to form a resin-diluent mixture; (c) forming a diluent containing cross-linked epoxy gel from said resin-diluent mixture; (d) replacing said diluent with a solvent therefore; (e) replacing said solvent with liquid carbon dioxide; and (f) vaporizing off said liquid carbon dioxide under supercritical conditions, whereby a foam having a density in the range of 35-150 mg/cc and cell diameters less than about 1 [mu]m is produced. Also disclosed are the foams produced by the process. 8 figures.

  7. Long lasting decontamination foam

    DOE Patents [OSTI]

    Demmer, Ricky L. (Idaho Falls, ID); Peterman, Dean R. (Idaho Falls, ID); Tripp, Julia L. (Pocatello, ID); Cooper, David C. (Idaho Falls, ID); Wright, Karen E. (Idaho Falls, ID)

    2010-12-07T23:59:59.000Z

    Compositions and methods for decontaminating surfaces are disclosed. More specifically, compositions and methods for decontamination using a composition capable of generating a long lasting foam are disclosed. Compositions may include a surfactant and gelatin and have a pH of less than about 6. Such compositions may further include affinity-shifting chemicals. Methods may include decontaminating a contaminated surface with a composition or a foam that may include a surfactant and gelatin and have a pH of less than about 6.

  8. Foam Processing of Textiles

    E-Print Network [OSTI]

    Bafford, R. A.; Namboodri, C. G.

    1984-01-01T23:59:59.000Z

    and half by the foam pro Finish Wet Pick-Up 68.4% 25% cess. A typical lot consists of 10 to 20 thou Calculated Holst.ure on Fabric 67.6 24.4 sand lineal yards. The solids add-on of finish Dryer Temp.op. 345/380 260/265 ing chemicals was the same...

  9. Low density microcellular foams

    DOE Patents [OSTI]

    LeMay, James D. (Castro Valley, CA)

    1992-01-01T23:59:59.000Z

    Disclosed is a process of producing microcellular from which comprises the steps of: (a) selecting a multifunctional epoxy oligomer resin; (b) mixing said epoxy resin with a non-reactive diluent to form a resin-diluent mixture; (c) forming a diluent containing cross-linked epoxy gel from said resin-diluent mixture; (d) replacing said diluent with a solvent therefore; (e) replacing said solvent with liquid carbon dioxide; and (f) vaporizing off said liquid carbon dioxide under supercritical conditions, whereby a foam having a density in the range of 35-150 mg/cc and cell diameters less than about 1 .mu.m is produced. Also disclosed are the foams produced by the process.

  10. High temperature lightweight foamed cements

    DOE Patents [OSTI]

    Sugama, Toshifumi (Mastic Beach, NY)

    1989-01-01T23:59:59.000Z

    Cement slurries are disclosed which are suitable for use in geothermal wells since they can withstand high temperatures and high pressures. The formulation consists of cement, silica flour, water, a retarder, a foaming agent, a foam stabilizer, and a reinforcing agent. A process for producing these cements is also disclosed.

  11. High temperature lightweight foamed cements

    DOE Patents [OSTI]

    Sugama, Toshifumi.

    1989-10-03T23:59:59.000Z

    Cement slurries are disclosed which are suitable for use in geothermal wells since they can withstand high temperatures and high pressures. The formulation consists of cement, silica flour, water, a retarder, a foaming agent, a foam stabilizer, and a reinforcing agent. A process for producing these cements is also disclosed. 3 figs.

  12. Redox reaction and foaming in nuclear waste glass melting

    SciTech Connect (OSTI)

    Ryan, J.L.

    1995-08-01T23:59:59.000Z

    This document was prepared by Pacific Northwest Laboratory (PNL) and is an attempt to analyze and estimate the effects of feed composition variables and reducing agent variables on the expected chemistry of reactions occurring in the cold cap and in the glass melt in the nuclear waste glass Slurry-fed, joule-heated melters as they might affect foaming during the glass-making process. Numerous redox reactions of waste glass components and potential feed additives, and the effects of other feed variables on these reactions are reviewed with regard to their potential effect on glass foaming. A major emphasis of this report is to examine the potential positive or negative aspects of adjusting feed with formic acid as opposed to other feed modification techniques including but not limited to use of other reducing agents. Feed modification techniques other than the use of reductants that should influence foaming behavior include control of glass melter feed pH through use of nitric acid. They also include partial replacement of sodium salts by lithium salts. This latter action (b) apparently lowers glass viscosity and raises surface tension. This replacement should decrease foaming by decreasing foam stability.

  13. Spherical Foams in Flat Space

    E-Print Network [OSTI]

    Carl D. Modes; Randall D. Kamien

    2008-10-31T23:59:59.000Z

    Regular tesselations of space are characterized through their Schlafli symbols {p,q,r}, where each cell has regular p-gonal sides, q meeting at each vertex, and r meeting on each edge. Regular tesselations with symbols {p,3,3} all satisfy Plateau's laws for equilibrium foams. For general p, however, these regular tesselations do not embed in Euclidean space, but require a uniform background curvature. We study a class of regular foams on S^3 which, through conformal, stereographic projection to R^3 define irregular cells consistent with Plateau's laws. We analytically characterize a broad classes of bulk foam bubbles, and extend and explain recent observations on foam structure and shape distribution. Our approach also allows us to comment on foam stability by identifying a weak local maximum of A^(3/2)/V at the maximally symmetric tetrahedral bubble that participates in T2 rearrangements.

  14. System Description for the K-25/K-27 D&D Project Polyurethane Foam Delivery System, East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Boris, G.

    2008-02-21T23:59:59.000Z

    The Foam Delivery System used in the decontamination and decommissioning (D&D) project for the K-25/K-27 Buildings at the East Tennessee Technology Park (ETTP) is comprised of a trailer-mounted Gusmer{reg_sign} H20/35 Pro-TEC Proportioning Unit and the associated equipment to convey electrical power, air, and foam component material to the unit. This high-pressure, plural-component polyurethane foam pouring system will be used to fill process gas and non-process equipment/piping (PGE/P) within the K-25/K-27 Buildings with polyurethane foam to immobilize contaminants prior to removal. The system creates foam by mixing isocyanate and polyol resin (Resin) component materials. Currently, the project plans to utilize up to six foaming units simultaneously during peak foaming activities. Also included in this system description are the foam component material storage containers that will be used for storage of the component material drums in a staging area outside of the K-25/K-27 Buildings. The Foam Delivery System and foam component material storage enclosures (i.e., Foaming Component Protective Enclosures) used to store polymeric methylene diphenyl diisocyanate (PMDI) component material are identified as Safety Significant (SS) Structures, Systems and Components (SSC) in the Documented Safety Analysis (DSA) for the project, Documented Safety Analysis for the K-25 and K-27 Facilities at the East Tennessee Technology Park, Oak Ridge, Tennessee, DSA-ET-K-25/K-27-0001.

  15. Mechanical Characterization of Rigid Polyurethane Foams.

    SciTech Connect (OSTI)

    Lu, Wei-Yang

    2014-12-01T23:59:59.000Z

    Foam materials are used to protect sensitive components from impact loading. In order to predict and simulate the foam performance under various loading conditions, a validated foam model is needed and the mechanical properties of foams need to be characterized. Uniaxial compression and tension tests were conducted for different densities of foams under various temperatures and loading rates. Crush stress, tensile strength, and elastic modulus were obtained. A newly developed confined compression experiment provided data for investigating the foam flow direction. A biaxial tension experiment was also developed to explore the damage surface of a rigid polyurethane foam.

  16. Multifunctional Corrosion-resistant Foamed Well Cement Composites...

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

    Multifunctional Corrosion-resistant Foamed Well Cement Composites Multifunctional Corrosion-resistant Foamed Well Cement Composites Multifunctional Corrosion-resistant Foamed Well...

  17. Carbon foam characterization tensile evaluation of carbon foam ligaments

    E-Print Network [OSTI]

    Verdugo Rodriguez, Rogelio Alberto

    2004-09-30T23:59:59.000Z

    A methodology for ligament isolation and specimen preparation for tensile testing of single ligaments from the unit cell of open-cell carbon foams has been successfully developed and implemented. Results are presented for ...

  18. Carbon foam characterization tensile evaluation of carbon foam ligaments

    E-Print Network [OSTI]

    Verdugo Rodriguez, Rogelio Alberto

    2004-09-30T23:59:59.000Z

    foam microstructure 100 6 In this procedure, Crystalbond? is used which is a commercially available wax for temporarily mounting of materials that require dicing, polishing, and other machining processes. When processing is complete, this wax...

  19. Composite carbon foam electrode

    DOE Patents [OSTI]

    Mayer, S.T.; Pekala, R.W.; Kaschmitter, J.L.

    1997-05-06T23:59:59.000Z

    Carbon aerogels used as a binder for granulated materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid particles being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivity and power to system energy. 1 fig.

  20. Composite carbon foam electrode

    DOE Patents [OSTI]

    Mayer, Steven T. (San Leandro, CA); Pekala, Richard W. (Pleasant Hill, CA); Kaschmitter, James L. (Pleasanton, CA)

    1997-01-01T23:59:59.000Z

    Carbon aerogels used as a binder for granularized materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid particles being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivty and power to system energy.

  1. Supercapacitors based on carbon foams

    DOE Patents [OSTI]

    Kaschmitter, J.L.; Mayer, S.T.; Pekala, R.W.

    1993-11-09T23:59:59.000Z

    A high energy density capacitor incorporating a variety of carbon foam electrodes is described. The foams, derived from the pyrolysis of resorcinol-formaldehyde and related polymers, are high density (0.1 g/cc-1.0 g/cc) electrically conductive and have high surface areas (400 m[sup 2]/g-1000 m[sup 2]/g). Capacitances on the order of several tens of farad per gram of electrode are achieved. 9 figures.

  2. Supercapacitors based on carbon foams

    DOE Patents [OSTI]

    Kaschmitter, James L. (6291 Alisal St., Pleasanton, CA 94566); Mayer, Steven T. (16026 Selborne Dr., San Leandro, CA 94578); Pekala, Richard W. (802 Cliffside Dr., Pleasant Hill, CA 94523)

    1993-01-01T23:59:59.000Z

    A high energy density capacitor incorporating a variety of carbon foam electrodes is described. The foams, derived from the pyrolysis of resorcinol-formaldehyde and related polymers, are high density (0.1 g/cc-1.0 g/cc) electrically conductive and have high surface areas (400 m.sup.2 /g-1000 m.sup.2 /g). Capacitances on the order of several tens of farad per gram of electrode are achieved.

  3. MECHANISTIC STUDIES OF IMPROVED FOAM EOR PROCESSES

    SciTech Connect (OSTI)

    William R. Rossen

    2005-01-05T23:59:59.000Z

    The objective of this research is to widen the application of foam to enhanced oil recovery (EOR) by investigating fundamental mechanisms of foams in porous media. This research will lay the groundwork for more applied research on foams for improved sweep efficiency in miscible gas, steam and surfactant-based EOR. Task 1 investigates the pore-scale interactions between foam bubbles and polymer molecules. Task 2 examines the mechanisms of gas trapping, and interaction between gas trapping and foam effectiveness. Task 3 investigates mechanisms of foam generation in porous media.

  4. Epoxy Foam Encapsulants: Processing and Dielectric Characterization

    SciTech Connect (OSTI)

    Linda Domeier; Marion Hunter

    1999-01-01T23:59:59.000Z

    The dielectric performance of epoxy foams was investigated to determine if such materials might provide advantages over more standard polyurethane foams in the encapsulation of electronic assemblies. Comparisons of the dielectric characteristics of epoxy and urethane encapsulant foams found no significant differences between the two resin types and no significant difference between as-molded and machined foams. This study specifically evaluated the formulation and processing of epoxy foams using simple methylhydrosiloxanes as the flowing agent and compared the dielectric performance of those to urethane foams of similar density.

  5. MECHANISTIC STUDIES OF IMPROVED FOAM EOR PROCESSES

    SciTech Connect (OSTI)

    William R. Rossen

    2005-03-16T23:59:59.000Z

    The objective of this research is to widen the application of foam to enhanced oil recovery (EOR) by investigating fundamental mechanisms of foams in porous media. This research is to lay the groundwork for more-applied research on foams for improved sweep efficiency in miscible gas, steam and surfactant-based EOR. Task 1 investigates the pore-scale interactions between foam bubbles and polymer molecules. Task 2 examines the mechanisms of gas trapping, and interaction between gas trapping and foam effectiveness. Task 3 investigates mechanisms of foam generation in porous media.

  6. Biopolymer foams - Relationship between material characteristics and foaming behavior of cellulose based foams

    SciTech Connect (OSTI)

    Rapp, F., E-mail: florian.rapp@ict.fraunhofer.de, E-mail: anja.schneider@ict.fraunhofer.de; Schneider, A., E-mail: florian.rapp@ict.fraunhofer.de, E-mail: anja.schneider@ict.fraunhofer.de [Fraunhofer Institute for Chemical Technology ICT (Germany); Elsner, P., E-mail: peter.elsner@ict.fraunhofer.de [Fraunhofer Institute for Chemical Technology ICT, Germany and Karlsruhe Institute of Technology KIT (Germany)

    2014-05-15T23:59:59.000Z

    Biopolymers are becoming increasingly important to both industry and consumers. With regard to waste management, CO{sub 2} balance and the conservation of petrochemical resources, increasing efforts are being made to replace standard plastics with bio-based polymers. Nowadays biopolymers can be built for example of cellulose, lactic acid, starch, lignin or bio mass. The paper will present material properties of selected cellulose based polymers (cellulose propionate [CP], cellulose acetate butyrate [CAB]) and corresponding processing conditions for particle foams as well as characterization of produced parts. Special focus is given to the raw material properties by analyzing thermal behavior (differential scanning calorimetry), melt strength (Rheotens test) and molecular weight distribution (gel-permeation chromatography). These results will be correlated with the foaming behavior in a continuous extrusion process with physical blowing agents and underwater pelletizer. Process set-up regarding particle foam technology, including extrusion foaming and pre-foaming, will be shown. The characteristics of the resulting foam beads will be analyzed regarding part density, cell morphology and geometry. The molded parts will be tested on thermal conductivity as well as compression behavior (E-modulus, compression strength)

  7. Buoyancy Effects on Smoldering of Polyurethane Foam

    E-Print Network [OSTI]

    Torero, Jose L

    1992-11-19T23:59:59.000Z

    An experimental study has been carried out to investigate the effects of buoyancy on smoldering of polyurethane foam. The experiments are conducted with a high void fraction flexible polyurethane foam as fuel and air as ...

  8. Determination of foam stability at constant pressure in the Plateau-Biggs borders of the foam

    SciTech Connect (OSTI)

    Khristov, K.I.; Exerowa, D.R.; Kurgljakov, P.M.

    1981-02-01T23:59:59.000Z

    The lifetime of a foam column (or of a part of the column) is a parameter widely used as a characteristic of foam stability. During the destruction process, the pressure in the upper layers of the foam changes (the height H of the foam column decreases) and the lifetime of the different layers of the foam column will be different. Therefore, the lifetime of a foam column at constant pressure in the Plateau-Gibbs borders (constant along the height of the column and with time) is a much more accurate characteristic of foam stability.

  9. Engineering the Quantum Foam

    E-Print Network [OSTI]

    Reginald T. Cahill

    2005-06-06T23:59:59.000Z

    In 1990 Alcubierre, within the General Relativity model for space-time, proposed a scenario for `warp drive' faster than light travel, in which objects would achieve such speeds by actually being stationary within a bubble of space which itself was moving through space, the idea being that the speed of the bubble was not itself limited by the speed of light. However that scenario required exotic matter to stabilise the boundary of the bubble. Here that proposal is re-examined within the context of the new modelling of space in which space is a quantum system, viz a quantum foam, with on-going classicalisation. This model has lead to the resolution of a number of longstanding problems, including a dynamical explanation for the so-called `dark matter' effect. It has also given the first evidence of quantum gravity effects, as experimental data has shown that a new dimensionless constant characterising the self-interaction of space is the fine structure constant. The studies here begin the task of examining to what extent the new spatial self-interaction dynamics can play a role in stabilising the boundary without exotic matter, and whether the boundary stabilisation dynamics can be engineered; this would amount to quantum gravity engineering.

  10. Better Buildings Network View | May 2014 | Department of Energy

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

    May 2014 More Documents & Publications Better Buildings Network View | July-August 2014 Better Buildings Network View | June...

  11. Panelized wall system with foam core insulation

    DOE Patents [OSTI]

    Kosny, Jan (Oak Ridge, TN); Gaskin, Sally (Houston, TX)

    2009-10-20T23:59:59.000Z

    A wall system includes a plurality of wall members, the wall members having a first metal panel, a second metal panel, and an insulating core between the first panel and the second panel. At least one of the first panel and the second panel include ridge portions. The insulating core can be a foam, such as a polyurethane foam. The foam can include at least one opacifier to improve the k-factor of the foam.

  12. Pipe viscometry of foams C. Enzendorfer

    E-Print Network [OSTI]

    Valkó, Peter

    of foams is usually characterized by the quality, r, defined as the ratio of the gas volume to the total,and quality was determined in pipes of five diameters. The flow curves showed a marked dependenceon foam volume. High-quality foams, above 93%-97% have the tendency to invert into mist. In a mist

  13. Foam vessel for cryogenic fluid storage

    DOE Patents [OSTI]

    Spear, Jonathan D (San Francisco, CA)

    2011-07-05T23:59:59.000Z

    Cryogenic storage and separator vessels made of polyolefin foams are disclosed, as are methods of storing and separating cryogenic fluids and fluid mixtures using these vessels. In one embodiment, the polyolefin foams may be cross-linked, closed-cell polyethylene foams with a density of from about 2 pounds per cubic foot to a density of about 4 pounds per cubic foot.

  14. Highly concentrated foam formulation for blast mitigation

    DOE Patents [OSTI]

    Tucker, Mark D. (Albuquerque, NM); Gao, Huizhen (Albuquerque, NM)

    2010-12-14T23:59:59.000Z

    A highly concentrated foam formulation for blast suppression and dispersion mitigation for use in responding to a terrorism incident involving a radiological dispersion device. The foam formulation is more concentrated and more stable than the current blast suppression foam (AFC-380), which reduces the logistics burden on the user.

  15. UNIAXIAL STRESSSTRAIN BEHAVIOUR OF ALUMINIUM ALLOY FOAMS

    E-Print Network [OSTI]

    Fleck, Norman A.

    UNIAXIAL STRESSSTRAIN BEHAVIOUR OF ALUMINIUM ALLOY FOAMS K.Y.G. McCULLOUGH, N.A. FLECK and M of closed cell aluminium alloy foams (trade name ``Alulight'') has been measured and interpreted in terms. All rights reserved. Keywords: Aluminium alloys; Foams; Deformation mechanisms 1. INTRODUCTION Recent

  16. Process for epoxy foam production

    DOE Patents [OSTI]

    Celina, Mathias C. (Albuquerque, NM)

    2011-08-23T23:59:59.000Z

    An epoxy resin mixture with at least one epoxy resin of between approximately 60 wt % and 90 wt %, a maleic anhydride of between approximately 1 wt % and approximately 30 wt %, and an imidazole catalyst of less than approximately 2 wt % where the resin mixture is formed from at least one epoxy resin with a 1-30 wt % maleic anhydride compound and an imidazole catalyst at a temperature sufficient to keep the maleic anhydride compound molten, the resin mixture reacting to form a foaming resin which can then be cured at a temperature greater than 50.degree. C. to form an epoxy foam.

  17. Heat exchanger using graphite foam

    DOE Patents [OSTI]

    Campagna, Michael Joseph; Callas, James John

    2012-09-25T23:59:59.000Z

    A heat exchanger is disclosed. The heat exchanger may have an inlet configured to receive a first fluid and an outlet configured to discharge the first fluid. The heat exchanger may further have at least one passageway configured to conduct the first fluid from the inlet to the outlet. The at least one passageway may be composed of a graphite foam and a layer of graphite material on the exterior of the graphite foam. The layer of graphite material may form at least a partial barrier between the first fluid and a second fluid external to the at least one passageway.

  18. Spacetime Foam and Dark Energy

    E-Print Network [OSTI]

    Y. Jack Ng

    2008-08-08T23:59:59.000Z

    Due to quantum fluctuations, spacetime is foamy on small scales. The degree of foaminess is found to be consistent with the holographic principle. One way to detect spacetime foam is to look for halos in the images of distant quasars. Applying the holographic foam model to cosmology we "predict" that the cosmic energy density takes on the critical value; and basing only on existing archived data on active galactic nuclei from the Hubble Space Telescope, we also "predict" the existence of dark energy which, we argue, is composed of an enormous number of inert "particles" of extremely long wavelength. We speculate that these "particles" obey infinite statistics.

  19. Low density, microcellular foams, preparation, and articles

    DOE Patents [OSTI]

    Young, A.T.

    1982-03-03T23:59:59.000Z

    A microcellular low-density foam of poly(4-methyl-1-pentene) particularly useful for forming targets for inertial confinement fusion has been developed. Articles made from the foam have been machined to tolerances of 0.0001 inch, although the densities of the fragile foam are low (about 10 to about 100 mg/cc) and the cell sizes are small (about 10 to about 30 ..mu..m). Methods for forming the foam and articles are given. The yield strength of the foam of the invention is higher than was obtained in other structures of this same material.

  20. Low density, microcellular foams, preparation, and articles

    DOE Patents [OSTI]

    Young, Ainslie T. (Los Alamos, NM); Marsters, Robert G. (Jemez Springs, NM); Moreno, Dawn K. (Espanola, NM)

    1984-01-01T23:59:59.000Z

    A microcellular low density foam of poly(4-methyl-1-pentene) which is particularly useful for forming targets for inertial confinement fusion has been developed. Articles made from the foam have been machined to tolerances of 0.0001 inch, although the densities of the fragile foam are low (about 10 to about 100 mg/cc) and the cell sizes are small (about 10 to about 30 .mu.m). Methods for forming the foam and articles are given; and the yield strength of the foam of the invention is higher than was obtained in other structures of this same material.

  1. Method of making a cyanate ester foam

    DOE Patents [OSTI]

    Celina, Mathias C.; Giron, Nicholas Henry

    2014-08-05T23:59:59.000Z

    A cyanate ester resin mixture with at least one cyanate ester resin, an isocyanate foaming resin, other co-curatives such as polyol or epoxy compounds, a surfactant, and a catalyst/water can react to form a foaming resin that can be cured at a temperature greater than 50.degree. C. to form a cyanate ester foam. The cyanate ester foam can be heated to a temperature greater than 400.degree. C. in a non-oxidative atmosphere to provide a carbonaceous char foam.

  2. Better Buildings Network View | November 2014 | Department of...

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

    November 2014 More Documents & Publications Better Buildings Network View | July-August 2014 Better Buildings Network View | December 2014 Better Buildings Network View | January...

  3. Microsoft Word - Document1

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA / USACE SWPAURTeC:8CO 2 FoamC M EBoard hiresplansViews:

  4. Antioxidant behavior in flexible PU foam

    SciTech Connect (OSTI)

    Skorpenske, R.G.; Schrock, A.K.

    1991-09-01T23:59:59.000Z

    In this article, data are given regarding the AO concentration profiles across foam buns as a function of the corresponding temperature profile of the foams studied, three were produced on a Varimax pilot line located at Dow Chemical Company Freeport, Texas. The fourth foam used for this study was a production scale foam made at Texas Fibers, a Division of Leggett and Platt, Brenham, Texas. The foams produced on the Varimas include formulations using 4.1, 5.1 and 6.1 parts per hundred parts (pphp) water based on polyol and can be compared to the 4.1 pphp water foam made at Texas Fibers. Temperature data, collected from a foam-in-place grid of thermocouples, gives the time-temperature profile within the foam bun as a function of location. Foam samples which have been removed from locations corresponding to the thermocouples are examined, via methylene chloride extraction and liquid chromatographic analysis, for antioxidant content. The objective is to determine the significance of the foam environment, as a function of formulation, on the behavior of antioxidants.

  5. Effect of furnace atmosphere on E-glass foaming

    E-Print Network [OSTI]

    Kim, D. S.; Dutton, Bryan C.; Hrma, Pavel R.; Pilon, Laurent

    2006-01-01T23:59:59.000Z

    oxy-fired furnaces. E-glass foams were generated in a fused-81.05.K 1. Introduction Glass foams generated in glass-that the stability of E-glass foam decreased with increasing

  6. Activated, coal-based carbon foam

    DOE Patents [OSTI]

    Rogers, Darren Kenneth; Plucinski, Janusz Wladyslaw

    2004-12-21T23:59:59.000Z

    An ablation resistant, monolithic, activated, carbon foam produced by the activation of a coal-based carbon foam through the action of carbon dioxide, ozone or some similar oxidative agent that pits and/or partially oxidizes the carbon foam skeleton, thereby significantly increasing its overall surface area and concurrently increasing its filtering ability. Such activated carbon foams are suitable for application in virtually all areas where particulate or gel form activated carbon materials have been used. Such an activated carbon foam can be fabricated, i.e. sawed, machined and otherwise shaped to fit virtually any required filtering location by simple insertion and without the need for handling the "dirty" and friable particulate activated carbon foam materials of the prior art.

  7. Nanostructured metal foams: synthesis and applications

    SciTech Connect (OSTI)

    Luther, Erik P [Los Alamos National Laboratory; Tappan, Bryce [Los Alamos National Laboratory; Mueller, Alex [Los Alamos National Laboratory; Mihaila, Bogdan [Los Alamos National Laboratory; Volz, Heather [Los Alamos National Laboratory; Cardenas, Andreas [Los Alamos National Laboratory; Papin, Pallas [Los Alamos National Laboratory; Veauthier, Jackie [Los Alamos National Laboratory; Stan, Marius [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    Fabrication of monolithic metallic nanoporous materials is difficult using conventional methodology. Here they report a relatively simple method of synthesizing monolithic, ultralow density, nanostructured metal foams utilizing self-propagating combustion synthesis of novel metal complexes containing high nitrogen energetic ligands. Nanostructured metal foams are formed in a post flame-front dynamic assembly with densities as low as 0.011 g/cc and surface areas as high as 270 m{sup 2}/g. They have produced metal foams via this method of titanium, iron, cobalt, nickel, zirconium, copper, palladium, silver, hafnium, platinum and gold. Microstructural features vary as a function of composition and process parameters. Applications for the metal foams are discussed including hydrogen absorption in palladium foams. A model for the sorption kinetics of hydrogen in the foams is presented.

  8. Blast mitigation capabilities of aqueous foam.

    SciTech Connect (OSTI)

    Hartman, William Franklin; Larsen, Marvin Elwood; Boughton, Bruce A.

    2006-02-01T23:59:59.000Z

    A series of tests involving detonation of high explosive blanketed by aqueous foam (conducted from 1982 to 1984) are described in primarily terms of recorded peak pressure, positive phase specific impulse, and time of arrival. The investigation showed that optimal blast mitigation occurs for foams with an expansion ratio of about 60:1. Simple analyses representing the foam as a shocked single phase mixture are presented and shown inadequate. The experimental data demonstrate that foam slows down and broadens the propagated pressure disturbance relative to a shock in air. Shaped charges and flyer plates were evaluated for operation in foam and appreciable degradation was observed for the flyer plates due to drag created by the foam.

  9. Aqueous foam toxicology evaluation and hazard review

    SciTech Connect (OSTI)

    Archuleta, M.M.

    1995-10-01T23:59:59.000Z

    Aqueous foams are aggregates of bubbles mechanically generated by passing air or other gases through a net, screen, or other porous medium that is wetted by an aqueous solution of surface-active foaming agents (surfactants). Aqueous foams are important in modem fire-fighting technology, as well as for military uses for area denial and riot or crowd control. An aqueous foam is currently being developed and evaluated by Sandia National Laboratories (SNL) as a Less-Than-Lethal Weapon for the National Institute of Justice (NIJ). The purpose of this study is to evaluate the toxicity of the aqueous foam developed for the NIJ and to determine whether there are any significant adverse health effects associated with completely immersing individuals without protective equipment in the foam. The toxicity of the aqueous foam formulation developed for NIJ is determined by evaluating the toxicity of the individual components of the foam. The foam is made from a 2--5% solution of Steol CA-330 surfactant in water generated at expansion ratios ranging from 500:1 to 1000:1. SteoI CA-330 is a 35% ammonium laureth sulfate in water and is produced by Stepan Chemical Company and containing trace amounts (<0.1%) of 1,4-dioxane. The results of this study indicate that Steol CA-330 is a non-toxic, mildly irritating, surfactant that is used extensively in the cosmetics industry for hair care and bath products. Inhalation or dermal exposure to this material in aqueous foam is not expected to produce significant irritation or systemic toxicity to exposed individuals, even after prolonged exposure. The amount of 1,4-dioxane in the surfactant, and subsequently in the foam, is negligible and therefore, the toxicity associated with dioxane exposure is not significant. In general, immersion in similar aqueous foams has not resulted in acute, immediately life-threatening effects, or chronic, long-term, non-reversible effects following exposure.

  10. The Co-Design of Scenarios for a Didactic-based E-learning System viewed as an Adaptive Virtual Document

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Co-Design of Scenarios for a Didactic-based E-learning System viewed as an Adaptive Virtual of the theory in didactic anthropology of knowledge and to show why we can formalize them in a hierarchical task scientific approaches ­ from computer science, didactic, cognitive psychology, education, etc. The design

  11. Process for preparing silicon carbide foam

    DOE Patents [OSTI]

    Whinnery, L.L.; Nichols, M.C.; Wheeler, D.R.; Loy, D.A.

    1997-09-16T23:59:59.000Z

    A method of preparing near net shape, monolithic, porous SiC foams is disclosed. Organosilicon precursors are used to produce polymeric gels by thermally induced phase separation, wherein, a sufficiently concentrated solution of an organosilicon polymer is cooled below its solidification temperature to form a gel. Following solvent removal from the gel, the polymer foam is pretreated in an oxygen plasma in order to raise its glass transition temperature. The pretreated foam is then pyrolyzed in an inert atmosphere to form a SiC foam. 9 figs.

  12. Process for preparing silicon carbide foam

    DOE Patents [OSTI]

    Whinnery, LeRoy Louis (Livermore, CA); Nichols, Monte Carl (Livermore, CA); Wheeler, David Roger (Albuquerque, NM); Loy, Douglas Anson (Albuquerque, NM)

    1997-01-01T23:59:59.000Z

    A method of preparing near net shape, monolithic, porous SiC foams is disclosed. Organosilicon precursors are used to produce polymeric gels by thermally induced phase separation, wherein, a sufficiently concentrated solution of an organosilicon polymer is cooled below its solidification temperature to form a gel. Following solvent removal from the gel, the polymer foam is pretreated in an oxygen plasma in order to raise its glass transition temperature. The pretreated foam is then pyrolized in an inert atmosphere to form a SiC foam.

  13. Rigid Polyurethane Foam (RPF) Technology for Countermines (Sea) Program Phase II

    SciTech Connect (OSTI)

    WOODFIN,RONALD L.; FAUCETT,DAVID L.; HANCE,BRADLEY G.; LATHAM,AMY E.; SCHMIDT,C.O.

    1999-10-01T23:59:59.000Z

    This Phase II report documents the results of one subtask initiated under the joint Department of Energy (DOE)/Department of Defense (DoD) Memorandum of Understanding (MOU) for Countermine Warfare. The development of Rigid Polyurethane Foams for neutralization of mines and barriers in amphibious assault was the objective of the tasking. This phase of the program concentrated on formation of RPF in water, explosive mine simulations, and development of foam and fabric pontoons. Field experimentation was done primarily at the Energetic Materials Research and Testing Center (EMRTC) of the New Mexico Institute of Mining and Technology, Socorro, NM between February 1996 and September 1998.

  14. Efficient continuous dryer for flexible polyurethane foam and cleaning apparatus

    DOE Patents [OSTI]

    Jody, Bassam (Chicago, IL); Daniels, Edward (Oak Lawn, IL); Libera, Joseph A. (Clarendon Hills, IL)

    1999-01-01T23:59:59.000Z

    A method of cleaning polyurethane foams where the material is transported through a wash station while alternately soaking the polyurethane foam in an organic solvent and squeezing solvent from the polyurethane foam a number of times. Then the polyurethane foam is sent through a rinse or solvent transfer station for reducing the concentration of solvent in the foam. The rinsed polyurethane foam is sent to a drying station wherein the foam is repeatedly squeezed while being exposed to hot air to remove wet air from the foam.

  15. Alloy Foam Diesel Emissions Control School Bus Implementation...

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

    Alloy Foam Diesel Emissions Control School Bus Implementation Alloy Foam Diesel Emissions Control School Bus Implementation Poster presentation from the 2007 Diesel...

  16. Efficient continuous dryer for flexible polyurethane foam and cleaning apparatus

    DOE Patents [OSTI]

    Jody, B.; Daniels, E.; Libera, J.A.

    1999-03-16T23:59:59.000Z

    A method of cleaning polyurethane foams where the material is transported through a wash station while alternately soaking the polyurethane foam in an organic solvent and squeezing solvent from the polyurethane foam a number of times. Then the polyurethane foam is sent through a rinse or solvent transfer station for reducing the concentration of solvent in the foam. The rinsed polyurethane foam is sent to a drying station wherein the foam is repeatedly squeezed while being exposed to hot air to remove wet air from the foam. 4 figs.

  17. Carbon Foam Thermal Management Materials for Electronic Packaging...

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

    Foam Thermal Management Materials for Electronic Packaging Carbon Foam Thermal Management Materials for Electronic Packaging Presentation from the U.S. DOE Office of Vehicle...

  18. abrogating foam cell: Topics by E-print Network

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

    are easily prepared by micro- emulsion templates. These silica foams resemble dense aerogels. Introduction Because of their greatly enhanced pore Yang, Peidong 16 Foams in a...

  19. Development of Steel Foam Materials and Structures

    SciTech Connect (OSTI)

    Kenneth Kremer; Anthony Liszkiewicz; James Adkins

    2004-10-20T23:59:59.000Z

    In the past few years there has been a growing interest in lightweight metal foams. Demands for weight reduction, improved fuel efficiency, and increased passenger safety in automobiles now has manufacturers seriously considering the use of metal foams, in contrast to a few years ago, when the same materials would have been ruled out for technical or economical reasons. The objective of this program was to advance the development and use of steel foam materials, by demonstrating the advantages of these novel lightweight materials in selected generic applications. Progress was made in defining materials and process parameters; characterization of physical and mechanical properties; and fabrication and testing of generic steel foam-filled shapes with compositions from 2.5 wt.% to 0.7 wt.% carbon. A means of producing steel foam shapes with uniform long range porosity levels of 50 to 60 percent was demonstrated and verified with NDE methods. Steel foam integrated beams, cylinders and plates were mechanically tested and demonstrated advantages in bend stiffness, bend resistance, and crush energy absorption. Methods of joining by welding, adhesive bonding, and mechanical fastening were investigated. It is important to keep in mind that steel foam is a conventional material in an unconventional form. A substantial amount of physical and mechanical properties are presented throughout the report and in a properties database at the end of the report to support designer's in applying steel foam in unconventional ways.

  20. Damping of liquid sloshing by foams

    E-Print Network [OSTI]

    Alban Sauret; Franois Boulogne; Jean Cappello; Emilie Dressaire; Howard A. Stone

    2015-02-01T23:59:59.000Z

    When a container is set in motion, the free surface of the liquid starts to oscillate or slosh. Such effects can be observed when a glass of water is handled carelessly and the fluid sloshes or even spills over the rims of the container. However, beer does not slosh as readily as water, which suggests that foam could be used to damp sloshing. In this work, we study experimentally the effect on sloshing of a liquid foam placed on top of a liquid bath. We generate a monodisperse two-dimensional liquid foam in a rectangular container and track the motion of the foam. The influence of the foam on the sloshing dynamics is experimentally characterized: only a few layers of bubbles are sufficient to significantly damp the oscillations. We rationalize our experimental findings with a model that describes the foam contribution to the damping coefficient through viscous dissipation on the walls of the container. Then we extend our study to confined three-dimensional liquid foam and observe that the behavior of 2D and confined 3D systems are very similar. Thus we conclude that only the bubbles close to the walls have a significant impact on the dissipation of energy. The possibility to damp liquid sloshing using foam is promising in numerous industrial applications such as the transport of liquefied gas in tankers or for propellants in rocket engines.

  1. Foam generator and viscometer apparatus and process

    DOE Patents [OSTI]

    Reed, Troy D.; Pickell, Mark B.; Volk, Leonard J.

    2004-10-26T23:59:59.000Z

    An apparatus and process to generate a liquid-gas-surfactant foam and to measure its viscosity and enable optical and or electronic measurements of physical properties. The process includes the steps of pumping selected and measured liquids and measured gases into a mixing cell. The mixing cell is pressurized to a desired pressure and maintained at a desired pressure. Liquids and gas are mixed in the mixing cell to produce a foam of desired consistency. The temperature of the foam in the mixing cell is controlled. Foam is delivered from the mixing cell through a viscometer under controlled pressure and temperature conditions where the viscous and physical properties of the foam are measured and observed.

  2. Chemical Engineering and Processing 43 (2004) 149160 Minimum superficial gas velocity for onset of foaming

    E-Print Network [OSTI]

    Pilon, Laurent

    ; Foam fractionation; Slag foaming; Glass foam 1. Introduction Semi-batch foams or pneumatic foams protein concentration [2]. In food processes or in glass melting furnaces, foam is unde- sirable since of foaming Laurent Pilona,, Raymond Viskantab a Mechanical and Aerospace Engineering Department, University

  3. Factors Contributing to Petroleum Foaming. 2. Synthetic Crude Oil Systems

    E-Print Network [OSTI]

    Kilpatrick, Peter K.

    to the petroleum industry. Nonaqueous foams occur in the production of and refining of crude oil. Crude oil foamsFactors Contributing to Petroleum Foaming. 2. Synthetic Crude Oil Systems Nael N. Zaki, Michael K August 28, 2001 The influence of petroleum asphaltenes and resins on stabilizing model oil foams

  4. Synthesis method for amorphous metallic foam Jan Schroersa)

    E-Print Network [OSTI]

    Haller, Gary L.

    be classified as ei- ther open or closed porous. Open foams are characterized by interconnected bubbles

  5. High temperature adhesive silicone foam composition, foam generating system and method of generating foam. [For access denial

    DOE Patents [OSTI]

    Mead, J.W.; Montoya, O.J.; Rand, P.B.; Willan, V.O.

    1983-12-21T23:59:59.000Z

    Access to a space is impeded by generation of a sticky foam from a silicone polymer and a low boiling solvent such as a halogenated hydrocarbon. In a preferred aspect, the formulation is polydimethylsiloxane gel mixed with F502 Freon as a solvent and blowing agent, and pressurized with CO/sub 2/ in a vessel to about 250 PSI, whereby when the vessel is opened, a sticky and solvent resistant foam is deployed. The foam is deployable, over a wide range of temperatures, adhering to wet surfaces as well as dry, is stable over long periods of time and does not propagate flame or lose adhesive properties during an externally supported burn.

  6. Spin Foam Models from the Tetrad Integration

    E-Print Network [OSTI]

    A. Mikovic

    2005-11-15T23:59:59.000Z

    We describe a class of spin foam models of four-dimensional quantum gravity which is based on the integration of the tetrad one-forms in the path integral for the Palatini action of General Relativity. In the Euclidian gravity case this class of models can be understood as a modification of the Barrett-Crane spin foam model. Fermionic matter can be coupled by using the path integral with sources for the tetrads and the spin connection, and the corresponding state sum is based on a spin foam where both the edges and the faces are colored independently with the irreducible representations of the spacetime rotations group.

  7. Low density inorganic foams fabricated using microwaves

    SciTech Connect (OSTI)

    Meek, T.T.; Blake, R.D.; Gregory, T.G.

    1985-01-01T23:59:59.000Z

    The objective of our work was to determine if high temperature foams could be made using microwave heating; and if so, to investigate some of their properties. Several foams were made and their compressive strengths, tensile strengths and densities were determined. Foams were made of glass, metal-glass, glass-fiber, metal-glass-fiber, and fly ash. The microwave source used was a Litton model 1521 microwave oven which operated at 2.45 GHz and had an output of 700 watts.

  8. The physical properties of microcellular composite foams

    SciTech Connect (OSTI)

    Nyitray, A.M.; Williams, J.M.; Onn, D.; Witek, A. (Los Alamos National Lab., NM (USA); Delaware Univ., Newark, DE (USA). Applied Thermal Physics Lab.)

    1989-01-01T23:59:59.000Z

    Recently we reported on a method of preparing microcellular composite foams. In this procedure an open-celled polystyrene foam is prepared by the polymerization of a high-internal-phase water-in-oil emulsion containing styrene, divinylbenzene, surfactant, free-radial initiator and water. After drying, the cells of the polystyrene foam are then filled with other materials such as aerogel or resoles. The physical properties of these materials, e.g., surface area, density, thermal conductivity, and compressive strength will be presented. 10 refs., 1 fig., 3 tabs.

  9. Uniformly dense polymeric foam body

    DOE Patents [OSTI]

    Whinnery Jr., Leroy

    2003-07-15T23:59:59.000Z

    A method for providing a uniformly dense polymer foam body having a density between about 0.013 g/cm.sup.3 to about 0.5 g/cm.sup.3 is disclosed. The method utilizes a thermally expandable polymer microsphere material wherein some of the microspheres are unexpanded and some are only partially expanded. It is shown that by mixing the two types of materials in appropriate ratios to achieve the desired bulk final density, filling a mold with this mixture so as to displace all or essentially all of the internal volume of the mold, heating the mold for a predetermined interval at a temperature above about 130.degree. C., and then cooling the mold to a temperature below 80.degree. C. the molded part achieves a bulk density which varies by less then about .+-.6% everywhere throughout the part volume.

  10. Coated foams, preparation, uses and articles

    DOE Patents [OSTI]

    Duchane, D.V.; Barthell, B.L.

    1982-10-21T23:59:59.000Z

    Hydrophobic cellular material is coated with a thin hydrophilic polymer skin which stretches tightly over the foam but which does not fill the cells of the foam, thus resulting in a polymer-coated foam structure having a smoothness which was not possible in the prior art. In particular, when the hydrophobic cellular material is a specially chosen hydrophobic polymer foam and is formed into arbitrarily chosen shapes prior to the coating with hydrophilic polymer, inertial confinement fusion (ICF) targets of arbitrary shapes can be produced by subsequently coating the shapes with metal or with any other suitable material. New articles of manufacture are produced, including improved ICF targets, improved integrated circuits, and improved solar reflectors and solar collectors. In the coating method, the cell size of the hydrophobic cellular material, the viscosity of the polymer solution used to coat, and the surface tension of the polymer solution used to coat are all very important to the coating.

  11. Generalized correlation for foam flow in tubes

    E-Print Network [OSTI]

    Cotter, Carol Lynnette

    1996-01-01T23:59:59.000Z

    . Data collected allow for the determination of material parameters. The corresponding friction factors and generalized Reynolds numbers are calculated and their relationship examined. Results indicate that the flow of foam follows the same f = 16/NRe,gen...

  12. Better Buildings Network View | April 2014 | Department of Energy

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

    April 2014 More Documents & Publications Better Buildings Network View | December 2014 Better Buildings Residential Network Orientation Better Buildings Network View | November...

  13. Better Buildings Network View | January 2015 | Department of...

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

    5 More Documents & Publications Better Buildings Network View | December 2014 Better Buildings Network View | November 2014 Better Buildings Residential Network Orientation...

  14. Better Buildings Network View | February 2015 | Department of...

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

    5 More Documents & Publications Better Buildings Network View | November 2014 Better Buildings Network View | September 2014 Better Buildings Residential Network Case Study:...

  15. Evaluation of aqueous-foam surfactants for geothermal drilling fluids

    SciTech Connect (OSTI)

    Rand, P.B.; Montoya, O.J.

    1983-07-01T23:59:59.000Z

    Aqueous foams are potentially useful drilling and cleanout fluids for geothermal applications. Successful use of foams requires surfactants (foaming agents) that can survive in the high-temperature geothermal environment. In this study, solutions of aqueous-foam-forming surfactants have been exposed to 260/sup 0/C (500/sup 0/F) and 310/sup 0/C (590/sup 0/F) in various chemical environments to determine if they can survive and make foams after exposure. Comparison of foams before and after exposure and the change in solution pH were used to evaluate their performance. Controlled liquid-volume-fraction foams, made in a packed-bed foam generator, were used for all tests. These tests have shown that many commercially available surfactants can survive short high-temperature cycles in mild acids, mild bases, and salt solutions as evidenced by their ability to make foams after exposure to high temperatures.

  16. Carbon foams for energy storage devices

    DOE Patents [OSTI]

    Kaschmitter, James L. (Pleasanton, CA); Mayer, Steven T. (San Leandro, CA); Pekala, Richard W. (Pleasant Hill, CA)

    1996-01-01T23:59:59.000Z

    A high energy density capacitor incorporating a variety of carbon foam electrodes is described. The foams, derived from the pyrolysis of resorcinol-formaldehyde and related polymers, are high density (0.1 g/cc-1.0 g/cc) electrically conductive and have high surface areas (400 m.sup.2 /g-1000 m.sup.2 /g). Capacitances on the order of several tens of farad per gram of electrode are achieved.

  17. Carbon foams for energy storage devices

    DOE Patents [OSTI]

    Kaschmitter, J.L.; Mayer, S.T.; Pekala, R.W.

    1996-06-25T23:59:59.000Z

    A high energy density capacitor incorporating a variety of carbon foam electrodes is described. The foams, derived from the pyrolysis of resorcinol-formaldehyde and related polymers, are high density (0.1 g/cc--1.0 g/cc) electrically conductive and have high surface areas (400 m{sup 2}/g-1000 m{sup 2}/g). Capacitances on the order of several tens of farad per gram of electrode are achieved. 9 figs.

  18. Radiative transfer and thermal performance levels in foam insulation boardstocks

    E-Print Network [OSTI]

    Moreno, John David

    1991-01-01T23:59:59.000Z

    The validity of predictive models for the thermal conductivity of foam insulation is established based on the fundamental geometry of the closed-cell foam. The extinction coefficient is experimentally and theoretically ...

  19. Flow of fracturing foams in vertical, horizontal and inclined pipes

    E-Print Network [OSTI]

    Krindinti, Kshipraprasad H

    2002-01-01T23:59:59.000Z

    of Journal of Petroleum Technology. In clnlling. thc ieduced density ol' the foam Fluids, their high solids carrying capacity, and thcii icduced c?tcultition losses;ire among the dcsirablc properties dunng underbalanced drilling operauons. Thc high solids... I I 95 quality foam 10 100 1000 Itlfvatl cheer rate (tiu) Ivlitchcll, 1871 ? - ? Bctcr cl nl. 1878 ? -- ? - 8 nyhnnr and Ikol'u, 1888 Figure 2. 1 Effective viscosity of foam as a function of shear rate and foam quality. From Underbalanced...

  20. Fenton Oxidation of TCE Vapors in a Foam Reactor

    E-Print Network [OSTI]

    Fenton Oxidation of TCE Vapors in a Foam Reactor Eunsung Kan,a,b Seongyup Kim,a and Marc A.interscience.wiley.com). DOI 10.1002/ep.10205 Oxidation of dilute TCE vapors in a foam reactor using Fenton's reagent composition of Fenton's reagents, the foam reactor configuration provided a higher rate absorption and greater

  1. Drainage induced convection rolls in foams (revised version)

    E-Print Network [OSTI]

    Cox, Simon

    , where soap solution is added to the foam at constant flow rate, the irregular motion in the beer glass results for convection in quasi two-dimensional foams (monolayers of bubbles between two glass platesDrainage induced convection rolls in foams (revised version) S. Hutzler, S.J. Cox*, E. Janiaud

  2. Experiments to Populate and Validate a Processing Model for Polyurethane Foam: Additional Data for Structural Foams.

    SciTech Connect (OSTI)

    Rao, Rekha R.; Celina, Mathias C.; Giron, Nicholas Henry; Long, Kevin Nicholas; Russick, Edward M.

    2015-01-01T23:59:59.000Z

    We are developing computational models to help understand manufacturing processes, final properties and aging of structural foam, polyurethane PMDI. Th e resulting model predictions of density and cure gradients from the manufacturing process will be used as input to foam heat transfer and mechanical models. BKC 44306 PMDI-10 and BKC 44307 PMDI-18 are the most prevalent foams used in structural parts. Experiments needed to parameterize models of the reaction kinetics and the equations of motion during the foam blowing stages were described for BKC 44306 PMDI-10 in the first of this report series (Mondy et al. 2014). BKC 44307 PMDI-18 is a new foam that will be used to make relatively dense structural supports via over packing. It uses a different catalyst than those in the BKC 44306 family of foams; hence, we expect that the reaction kineti cs models must be modified. Here we detail the experiments needed to characteriz e the reaction kinetics of BKC 44307 PMDI-18 and suggest parameters for the model based on these experiments. In additi on, the second part of this report describes data taken to provide input to the preliminary nonlinear visco elastic structural response model developed for BKC 44306 PMDI-10 foam. We show that the standard cu re schedule used by KCP does not fully cure the material, and, upon temperature elevation above 150 o C, oxidation or decomposition reactions occur that alter the composition of the foam. These findings suggest that achieving a fully cured foam part with this formulation may be not be possible through therma l curing. As such, visco elastic characterization procedures developed for curing thermosets can provide only approximate material properties, since the state of the material continuously evolves during tests.

  3. Effect of Heating Rate on Glass Foaming: Transition to Bulk Foam

    SciTech Connect (OSTI)

    Hrma, Pavel R.

    2009-02-15T23:59:59.000Z

    Foaming of glass is an undesirable side effect of glass fining. According to a recent experimental study, the gas-phase volume in the melt heated at a constant rate dramatically increased with an increased rate of heating. This observation indicates that an increased rate of heating (a natural consequence of the increased processing rate experienced as a result of transition to oxy-fuel firing) may exert a substantial influence on glass foaming in advanced glass-melting furnaces. This paper attributes this effect to the change of mode of foam formation in response to an increased rate of heating.

  4. Experiments for foam model development and validation.

    SciTech Connect (OSTI)

    Bourdon, Christopher Jay; Cote, Raymond O.; Moffat, Harry K.; Grillet, Anne Mary; Mahoney, James F. (Honeywell Federal Manufacturing and Technologies, Kansas City Plant, Kansas City, MO); Russick, Edward Mark; Adolf, Douglas Brian; Rao, Rekha Ranjana; Thompson, Kyle Richard; Kraynik, Andrew Michael; Castaneda, Jaime N.; Brotherton, Christopher M.; Mondy, Lisa Ann; Gorby, Allen D.

    2008-09-01T23:59:59.000Z

    A series of experiments has been performed to allow observation of the foaming process and the collection of temperature, rise rate, and microstructural data. Microfocus video is used in conjunction with particle image velocimetry (PIV) to elucidate the boundary condition at the wall. Rheology, reaction kinetics and density measurements complement the flow visualization. X-ray computed tomography (CT) is used to examine the cured foams to determine density gradients. These data provide input to a continuum level finite element model of the blowing process.

  5. Finite element modeling of syntactic foam.

    SciTech Connect (OSTI)

    Hobbs, Michael L.

    2004-10-01T23:59:59.000Z

    A decomposition model has been developed to predict the response of removable syntactic foam (RSF) exposed to fire-like heat fluxes. RSF consists of glass micro-balloons (GMB) in a cured epoxy polymer matrix. A chemistry model is presented based on the chemical structure of the epoxy polymer, mass transport of polymer fragments to the bulk gas, and vapor-liquid equilibrium. Thermophysical properties were estimated from measurements. A bubble nucleation, growth, and coalescence model was used to describe changes in properties with the extent of reaction. Decomposition of a strand of syntactic foam exposed to high temperatures was simulated.

  6. Low density microcellular carbon foams and method of preparation

    DOE Patents [OSTI]

    Arnold, C. Jr.; Aubert, J.H.; Clough, R.L.; Rand, P.B.; Sylwester, A.P.

    1988-06-20T23:59:59.000Z

    A low density, open-celled microcellular carbon foam is disclosed which is prepared by dissolving a carbonizable polymer or copolymer in a solvent, pouring the solution into a mold, cooling the solution, removing the solvent, and then carbonizing the polymer or copolymer in a high temperature oven to produce the foam. If desired, an additive can be introduced in order to produce a doped carbon foam, and the foams can be made isotropic by selection of a suitable solvent. The low density, microcellular foams produced by this process are particularly useful in the fabrication of inertial confinement fusion targets, but can also be used as catalysts, absorbents, and electrodes.

  7. Revised: 12.23.2013 Bb 9(SP13): Customizing the Instructor's View of the Grade Center p. 1 of 7 This document covers features in the Grade Center that helps an instructor to manage the grade

    E-Print Network [OSTI]

    Qiu, Weigang

    This document covers features in the Grade Center that helps an instructor to manage the grade columns Center documents for more information about managing the Grade Center. Renaming Columns You can change in the Grade Center table. The document includes the following topics: Renaming Columns Rearranging Columns

  8. Transient foam flow in porous media with CAT Scanner

    SciTech Connect (OSTI)

    Liu, Dianbin; Brigham, W.E.

    1992-03-01T23:59:59.000Z

    Transient behavior is likely to dominate over most of the duration of a foam injection field project. Due to the lack of date, little is presently known about transient foam flow behavior. Foam flow does not follow established models such as the Buckley-Leverett theory, and no general predictive model has been derived. Therefore, both experimental data and a foam flow theory are needed. In this work, foam was injected at a constant mass rate into one-dimensional sandpacks of 1-in diameter and 24-in or 48-in length that had initially been saturate with distilled water. The system was placed in a cat Scanner. Data, obtained at room temperature and low pressure at various times, include both the pressure and saturation distributions. Pressure profiles showed that the pressure gradient is much greater behind the foam front than ahead of it. Moreover, the pressure gradients keep changing as the foam advances in the sandpack. This behavior differs from Buckley-Leverett theory. The CT scan results demonstrated gas channeling near the front, but eventually the foam block all these channels and sweeps the entire cross section after many pore volumes of injection. Three series of experiments were run: (1) surfactant adsorption measurements; (2) gas displacements of surfactant-laden solutions and (3) foam displacements. The first two series of experiments were made to provide the necessary parameters required to match the foam displacements. To this end, it was necessary to smooth the saturation history data, using a Langmuir-type formula. A theory was proposed based on the principles of the fractional flow curve construction method. This foam theory treats the foam as composed of infinitesimal slugs of gas of varying viscosities. The foam front has the lowest viscosity and foam at the injection end has the highest.

  9. Spacetime Foam Model of the Schwarzschild Horizon

    E-Print Network [OSTI]

    Jarmo Makela; Ari Peltola

    2004-03-19T23:59:59.000Z

    We consider a spacetime foam model of the Schwarzschild horizon, where the horizon consists of Planck size black holes. According to our model the entropy of the Schwarzschild black hole is proportional to the area of its event horizon. It is possible to express geometrical arguments to the effect that the constant of proportionality is, in natural units, equal to one quarter.

  10. Effect of furnace atmosphere on E-glass foaming

    SciTech Connect (OSTI)

    Kim, Dong-Sang; Dutton, Bryan C.; Hrma, Pavel R.; Pilon, Laurent

    2006-12-01T23:59:59.000Z

    The effect of furnace atmosphere on E-glass foaming generated in crucible has been studied with a specific goal to understand the impact of increased water content on foaming in oxy-fired furnaces. E-glass foams were generated in a fused-quartz crucible located in a quartz window furnace equipped with video recording. The present study showed that humidity in the furnace atmosphere destabilizes foam, while other gases have little effect on foam stability. This study suggests that the higher foaming in oxy-fired furnace compared to air-fired is caused by the effect of water on early sulfate decomposition, promoting more efficient refining gas generation from sulfate (known as dilution effect).

  11. Rigid polyurethane foam (RPF) technology for Countermine (Sea) Program -- Phase 1

    SciTech Connect (OSTI)

    Woodfin, R.L. [Sandia National Labs., Albuquerque, NM (United States). Exploratory Sensors and Munitions Dept.] [Sandia National Labs., Albuquerque, NM (United States). Exploratory Sensors and Munitions Dept.

    1997-01-01T23:59:59.000Z

    This Phase 1 report documents the results of one of the subtasks that was initiated under the joint Department of Energy (DOE)/Department of Defense (DoD) Memorandum of Understanding (MOU) for Countermine Warfare. The development of a foam that can neutralize mines and barriers and allow the safe passage of amphibious landing craft and vehicles was the objective of this subtask of the Sea Mine Countermeasures Technology program. This phase of the program concentrated on laboratory characterization of foam properties and field experiments with prefabricated foam blocks to determine the capability of RPF to adequately carry military traffic. It also established the flammability characteristics of the material under simulated operational conditions, extended the understanding of explosive cavity formation in RPF to include surface explosions, established the tolerance to typical military fluids, and the response to bullet impact. Many of the basic analyses required to establish the operational concept are reported. The initial field experiments were conducted at the Energetic Materials Research and Testing Center (EMRTC) of the New Mexico Institute of Mining and Technology, Socorro, NM in November 1995 through February 1996.

  12. Military housing foam application and analysis

    SciTech Connect (OSTI)

    Torres, J. J.

    2012-03-01T23:59:59.000Z

    Sandia and Forest City have established a Cooperative Research and Development Agreement (CRADA), the partnership provides a unique opportunity to take technology research and development from demonstration to application in sustainable communities. This project consists of two activities conducted in Hawaii that focus on performance, integration and application of energy saving technologies. Hawaii has many energy challenges, making this location an excellent testbed for these activities. Under this project, spray foam technology was applied at military housing on Oahu and the consumption data collected. A cost benefit and operational analysis of the foam was completed. The second phase of this project included design, integration, and analysis of photovoltaic systems at a military community on Oahu. This phase of the project was conducted as part of Forest City's second Solar America Showcase Award.

  13. Dynamical Heterogeneities in Grains and Foams

    E-Print Network [OSTI]

    Olivier Dauchot; Douglas J. Durian; Martin van Hecke

    2010-10-05T23:59:59.000Z

    Dynamical heterogeneities have been introduced in the context of the glass transition of molecular liquids and the lengthscale associated with them has been argued to be at the origin of the observed quasi-universal behaviour of glassy systems. Dense amorphous packings of granular media and foams also exhibit slow dynamics, intermittency and heterogeneities. We review a number of recent experimental studies of these systems, where one has direct access to the relevant space-time dynamics, allowing for direct visualisations of the dynamical heterogeneities. On one hand these visualisations provide a unique opportunity to access the microscopic mechanisms responsible for the growth of dynamical correlations. On the other hand focussing on the differences in these heterogeneities in microscopically different systems allows to discuss the range of the analogies between molecular thermal glasses and athermal glasses such as granular media and foams. Finally this review is the opportunity to discuss various approaches to actually extract quantitatively the dynamical lengthscale from experimental data.

  14. ENHANCEMENT OF STRUCTURAL FOAM MATERIALS BY INCORPORATION OF GASIFIER SLAG

    SciTech Connect (OSTI)

    Olin Perry Norton; Ronald A. Palmer; W. Gene Ramsey

    2006-03-15T23:59:59.000Z

    As advanced gasification technology is increasingly adopted as an energy source, disposal of the resulting slag will become a problem. We have shown that gasifier slag can be incorporated into foamed glass, which is currently being manufactured as an abrasive and as an insulating material. The slag we add to foamed glass does not simply act as filler, but improves the mechanical properties of the product. Incorporation of gasifier slag can make foamed glass stronger and more abrasion resistant.

  15. Tissue Magnetic Susceptibility Matched Pyrolytic Graphite Foam for Improved MRI

    E-Print Network [OSTI]

    Lee, Gary Chiaray

    2011-01-01T23:59:59.000Z

    on a ZPrinter Model 150 3D printer (ZCorp, Burlington, MA),PG foam neck cushions. A 3D printer was used to create the

  16. Doping of carbon foams for use in energy storage devices

    DOE Patents [OSTI]

    Mayer, S.T.; Pekala, R.W.; Morrison, R.L.; Kaschmitter, J.L.

    1994-10-25T23:59:59.000Z

    A polymeric foam precursor, wetted with phosphoric acid, is pyrolyzed in an inert atmosphere to produce an open-cell doped carbon foam, which is utilized as a lithium intercalation anode in a secondary, organic electrolyte battery. Tests were conducted in a cell containing an organic electrolyte and using lithium metal counter and reference electrodes, with the anode located there between. Results after charge and discharge cycling, for a total of 6 cycles, indicated a substantial increase in the energy storage capability of the phosphorus doped carbon foam relative to the undoped carbon foam, when used as a rechargeable lithium ion battery. 3 figs.

  17. Doping of carbon foams for use in energy storage devices

    DOE Patents [OSTI]

    Mayer, Steven T. (San Leandro, CA); Pekala, Richard W. (Pleasant Hill, CA); Morrison, Robert L. (Modesto, CA); Kaschmitter, James L. (Pleasanton, CA)

    1994-01-01T23:59:59.000Z

    A polymeric foam precursor, wetted with phosphoric acid, is pyrolyzed in an inert atmosphere to produce an open-cell doped carbon foam, which is utilized as a lithium intercalation anode in a secondary, organic electrolyte battery. Tests were conducted in a cell containing an organic electrolyte and using lithium metal counter and reference electrodes, with the anode located therebetween. Results after charge and discharge cycling, for a total of 6 cycles, indicated a substantial increase in the energy storage capability of the phosphorus doped carbon foam relative to the undoped carbon foam, when used as a rechargeable lithium ion battery.

  18. Multifunctional Corrosion-resistant Foamed Well Cement Composites

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

    Multifunctional Corrosion-resistant Foamed Well Cement Composites Project Officer: Dan KingGreg Stillman Total budget: 300 K April 24 , 2013 Principal Investigator: Dr. Toshifumi...

  19. Design of composite plastic foams for improved cushioning

    E-Print Network [OSTI]

    Eskew, James Oliver

    1989-01-01T23:59:59.000Z

    and Polyethylene Foams at 0. 5G w/ 0. 444 psi Static Load 36 37 41 16. Example of a Parallel Configuration with Polyurethane and Polyethylene Foams at 0. 5G w/ 0. 311 psi Static Load on Composite . 41 17. Single Polyurethane Foam at 0. 5G w/ 0. 156 psi... w/ 0. 444 psi Static Load 45 45 53 54 55 57 57 58 58 59 59 60 60 LIST OF FIGURES (Continued) Figure Page 33 34 35 36 37 38. 40. 41 42. 43 44. 45 Single Polyethylene Foam at 0. 5G w/ 0. 156 psi Static Load Single...

  20. Carbon Foam Thermal Management Materials for Electronic Packaging...

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

    Carbon Foam Thermal Management Materials for Electronic Packaging David P. Stinton Oak Ridge National Laboratory Project Team: Nidia C. Gallego, ORNL Brian Thompson, ThermalCentric...

  1. Method of preparation of removable syntactic foam

    DOE Patents [OSTI]

    Arnold, Jr., Charles (Albuquerque, NM); Derzon, Dora K. (Albuquerque, NM); Nelson, Jill S. (Albuquerque, NM); Rand, Peter B. (Albuquerque, NM)

    1995-01-01T23:59:59.000Z

    Easily removable, environmentally safe, low-density, syntactic foams are disclosed which are prepared by mixing insoluble microballoons with a solution of water and/or alcohol-soluble polymer to produce a pourable slurry, optionally vacuum filtering the slurry in varying degrees to remove unwanted solvent and solute polymer, and drying to remove residual solvent. The properties of the foams can be controlled by the concentration and physical properties of the polymer, and by the size and properties of the microballoons. The suggested solute polymers are non-toxic and soluble in environmentally safe solvents such as water or low-molecular weight alcohols. The syntactic foams produced by this process are particularly useful in those applications where ease of removability is beneficial, and could find use in packaging recoverable electronic components, in drilling and mining applications, in building trades, in art works, in the entertainment industry for special effects, in manufacturing as temporary fixtures, in agriculture as temporary supports and containers and for delivery of fertilizer, in medicine as casts and splints, as temporary thermal barriers, as temporary protective covers for fragile objects, as filters for particulate matter, which matter may be easily recovered upon exposure to a solvent, as in-situ valves (for one-time use) which go from maximum to minimum impedance when solvent flows through, and for the automatic opening or closing of spring-loaded, mechanical switches upon exposure to a solvent, among other applications.

  2. Method of preparation of removable syntactic foam

    DOE Patents [OSTI]

    Arnold, C. Jr.; Derzon, D.K.; Nelson, J.S.; Rand, P.B.

    1995-07-11T23:59:59.000Z

    Easily removable, environmentally safe, low-density, syntactic foams are disclosed which are prepared by mixing insoluble microballoons with a solution of water and/or alcohol-soluble polymer to produce a pourable slurry, optionally vacuum filtering the slurry in varying degrees to remove unwanted solvent and solute polymer, and drying to remove residual solvent. The properties of the foams can be controlled by the concentration and physical properties of the polymer, and by the size and properties of the microballoons. The suggested solute polymers are non-toxic and soluble in environmentally safe solvents such as water or low-molecular weight alcohols. The syntactic foams produced by this process are particularly useful in those applications where ease of removability is beneficial, and could find use in packaging recoverable electronic components, in drilling and mining applications, in building trades, in art works, in the entertainment industry for special effects, in manufacturing as temporary fixtures, in agriculture as temporary supports and containers and for delivery of fertilizer, in medicine as casts and splints, as temporary thermal barriers, as temporary protective covers for fragile objects, as filters for particulate matter, which matter may be easily recovered upon exposure to a solvent, as in-situ valves (for one-time use) which go from maximum to minimum impedance when solvent flows through, and for the automatic opening or closing of spring-loaded, mechanical switches upon exposure to a solvent, among other applications. 1 fig.

  3. Hyper-dendritic nanoporous zinc foam anodes

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

    Chamoun, Mylad [Brookhaven National Lab. (BNL), Upton, NY (United States); Hertzberg, Benjamin J. [Princeton Univ., NJ (United States); Gupta, Tanya [Princeton Univ., NJ (United States); Davies, Daniel [Princeton Univ., NJ (United States); Bhadra, Shoham [Princeton Univ., NJ (United States); Van Tassell, Barry. [City College of New York, NY (United States); Erdonmez, Can [Brookhaven National Lab. (BNL), Upton, NY (United States); Steingart, Daniel A. [Princeton Univ., NJ (United States)

    2015-04-24T23:59:59.000Z

    The low cost, significant reducing potential, and relative safety of the zinc electrode is a common hope for a reductant in secondary batteries, but it is limited mainly to primary implementation due to shape change. In this work we exploit such shape change for the benefit of static electrodes through the electrodeposition of hyper-dendritic nanoporous zinc foam. Electrodeposition of zinc foam resulted in nanoparticles formed on secondary dendrites in a three-dimensional network with a particle size distribution of 54.1 - 96.0 nm. The nanoporous zinc foam contributed to highly oriented crystals, high surface area and more rapid kinetics in contrast to conventional zinc in alkaline mediums. The anode material presented had a utilization of ~ 88% at full depth-of-discharge at various rates indicating a superb rate-capability. The rechargeability of Zn?/Zn? showed significant capacity retention over 100 cycles at a 40% depth-of-discharge to ensure that the dendritic core structure was imperforated. The dendritic architecture was densified upon charge-discharge cycling and presented superior performance compared to bulk zinc electrodes.

  4. Hyper-dendritic nanoporous zinc foam anodes

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

    Chamoun, Mylad; Hertzberg, Benjamin J.; Gupta, Tanya; Davies, Daniel; Bhadra, Shoham; Van Tassell, Barry.; Erdonmez, Can; Steingart, Daniel A.

    2015-04-24T23:59:59.000Z

    The low cost, significant reducing potential, and relative safety of the zinc electrode is a common hope for a reductant in secondary batteries, but it is limited mainly to primary implementation due to shape change. In this work we exploit such shape change for the benefit of static electrodes through the electrodeposition of hyper-dendritic nanoporous zinc foam. Electrodeposition of zinc foam resulted in nanoparticles formed on secondary dendrites in a three-dimensional network with a particle size distribution of 54.1 - 96.0 nm. The nanoporous zinc foam contributed to highly oriented crystals, high surface area and more rapid kinetics in contrastmoreto conventional zinc in alkaline mediums. The anode material presented had a utilization of ~ 88% at full depth-of-discharge at various rates indicating a superb rate-capability. The rechargeability of Zn?/Zn? showed significant capacity retention over 100 cycles at a 40% depth-of-discharge to ensure that the dendritic core structure was imperforated. The dendritic architecture was densified upon charge-discharge cycling and presented superior performance compared to bulk zinc electrodes.less

  5. Show me the (shortest) way to go home Foams, soap films and minimization

    E-Print Network [OSTI]

    Cox, Simon

    importance: Oil recovery Car manufacture (Industrial) cleaning Fire-fighting Ore separation Personal Care Food products Why are foams of interest? foams@aber.ac.uk #12;

  6. INCOMING DOCUMENT CONTROL FORM DOCUMENT DESCRIPTION ORGANIZATIO

    Office of Legacy Management (LM)

    INCOMING DOCUMENT CONTROL FORM DOCUMENT DESCRIPTION ORGANIZATIO )ATE COMPLETED: ACTION NUMBER: I I I DOCUMENT CONTROL DATE INITIALS DATA BASE: ACTION LOG: FILED: To : Doug...

  7. More Documents

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your1 SECTIONES2008-54174More Documents More Documents

  8. Development of Foamed Emulsion Bioreactor for Air Pollution Control

    E-Print Network [OSTI]

    Development of Foamed Emulsion Bioreactor for Air Pollution Control Eunsung Kan, Marc A. Deshusses used bioreactors for air pollution control. 2003 Wiley Periodicals, Inc. Biotechnol Bioeng 84: 240244, 2003. Keywords: VOC control; biofilter; air pollution control; toluene; biologically activated foam

  9. Continuous Operation of Foamed Emulsion Bioreactors Treating Toluene Vapors

    E-Print Network [OSTI]

    Continuous Operation of Foamed Emulsion Bioreactors Treating Toluene Vapors Eunsung Kan, Marc A.interscience.wiley.com). DOI: 10.1002/bit.20619 Abstract: Continuous operation of a new bioreactor for air pollution control called the foamed emulsion bioreactor (FEBR) has been investigated. The effect of several liquid feeding

  10. Modeling of a Foamed Emulsion Bioreactor: II. Model Parametric Sensitivity

    E-Print Network [OSTI]

    ARTICLE Modeling of a Foamed Emulsion Bioreactor: II. Model Parametric Sensitivity Eunsung Kan: The sensitivity of a conceptual model of a foam emulsion bioreactor (FEBR) used for the control of toluene vapors mass transfer and kinetic limitations can coexist in the bioreactor system. These results will help

  11. Mechanical Inhibition of Foam Formation via a Rotating Nozzle

    E-Print Network [OSTI]

    Ristenpart, William

    have been devel- oped to minimize the impact of foams [2]. Anti-foaming agents are added to prevent environmental disposal problems, and increase the overall process cost and complexity [3]. Non report a design for a rotating nozzle that prevents successive collocated impacts, thereby minimizing

  12. Mechanical properties and energy absorption characteristics of a polyurethane foam

    SciTech Connect (OSTI)

    Goods, S.H.; Neuschwanger, C.L.; Henderson, C.; Skala, D.M.

    1997-03-01T23:59:59.000Z

    Tension, compression and impact properties of a polyurethane encapsulant foam have been measured as a function of foam density. Significant differences in the behavior of the foam were observed depending on the mode of testing. Over the range of densities examined, both the modulus and the elastic collapse stress of the foam exhibited power-law dependencies with respect to density. The power-law relationship for the modulus was the same for both tension and compression testing and is explained in terms of the elastic compliance of the cellular structure of the foam using a simple geometric model. Euler buckling is used to rationalize the density dependence of the collapse stress. Neither tension nor compression testing yielded realistic measurements of energy absorption (toughness). In the former case, the energy absorption characteristics of the foam were severely limited due to the inherent lack of tensile ductility. In the latter case, the absence of a failure mechanism led to arbitrary measures of energy absorption that were not indicative of true material properties. Only impact testing revealed an intrinsic limitation in the toughness characteristics of the material with respect to foam density. The results suggest that dynamic testing should be used when assessing the shock mitigating qualities of a foam.

  13. Environmentally-benign Flame Retardant Nanocoating for Foam and Fabric

    E-Print Network [OSTI]

    Cain, Amanda Ashley

    2014-12-09T23:59:59.000Z

    wt% coating addition) are necessary to cut the pkHRR of polyether-based polyurethane by 54.8%, relative to control, uncoated foam. The influence of clay aspect ratio and composition on fire behavior of coated polyurethane foam was studied as a...

  14. Mechanical Properties of a Metal Powder-Loaded Polyurethane Foam

    SciTech Connect (OSTI)

    C. L. Neuschwanger; L. L. Whinnery; S. H. Goods

    1999-04-01T23:59:59.000Z

    Quasi-static compression tests have been performed on polyurethane foam specimens. The modulus of the foam exhibited a power-law dependence with respect to density of the form: E* {proportional_to} {rho}*{sup n}, where n = 1.7. The modulus data is well described by a simple geometric model (attributed to the work of Gibson and Ashby) for closed-cell foam in which the stiffness of the foam is governed by the flexure of the cell struts and cell walls. The compressive strength of the foam is also found to follow a power-law behavior with respect to foam density. In this instance, Euler buckling is used to rationalize the density dependence. The modulus of the polyurethane foam was modified by addition of a gas atomized, spherical aluminum powder. Additions of 30 and 50 weight percent of the powder significantly increased the foam modulus. However, there were only slight increases in modulus with 5 and 10 weight percent additions of the metal powder. Strength was also slightly increased at high loading fractions of powder. This increase in modulus and strength could be predicted by combining the above geometric model with a well-known model describing the effect on modulus of a rigid dispersoid in a compliant matrix.

  15. Sandia-Power Surety Task Force Hawaii foam analysis.

    SciTech Connect (OSTI)

    McIntyre, Annie

    2010-11-01T23:59:59.000Z

    The Office of Secretary of Defense (OSD) Power Surety Task Force was officially created in early 2008, after nearly two years of work in demand reduction and renewable energy technologies to support the Warfighter in Theater. The OSD Power Surety Task Force is tasked with identifying efficient energy solutions that support mission requirements. Spray foam insulation demonstrations were recently expanded beyond field structures to include military housing at Ft. Belvoir. Initial results to using the foam in both applications are favorable. This project will address the remaining key questions: (1) Can this technology help to reduce utility costs for the Installation Commander? (2) Is the foam cost effective? (3) What application differences in housing affect those key metrics? The critical need for energy solutions in Hawaii and the existing relationships among Sandia, the Department of Defense (DOD), the Department of Energy (DOE), and Forest City, make this location a logical choice for a foam demonstration. This project includes application and analysis of foam to a residential duplex at the Waikulu military community on Oahu, Hawaii, as well as reference to spray foam applied to a PACOM facility and additional foamed units on Maui, conducted during this project phase. This report concludes the analysis and describes the utilization of foam insulation at military housing in Hawaii and the subsequent data gathering and analysis.

  16. Recovery of flexible polyurethane foam from shredder residue.

    SciTech Connect (OSTI)

    Daniels, E. J.; Jody, b. J.

    1999-06-29T23:59:59.000Z

    Argonne National Laboratory has developed a patented, continuous process for the recovery of flexible polyurethane foam (PUF) from auto shredder residue (ASR). To test the process, Argonne researchers conceived of, designed, and built a continuous foam washing and drying system that was pilot-tested at a shredder facility for six months. Economic analysis of the process, using manufacturers' quotes and operating data from Argonne's pilot plant, indicates a payback of less than two years for a plant producing about 1,000 ton/yr of foam. Samples of clean foam were shipped to three major foam reprocessors; all three indicated that the quality of the PUF recovered by the Argonne process met their requirements. Tests of the recovered foam by an independent testing laboratory showed that the recycled foam met the specifications for several automotive applications, including carpet padding, headliner, and sound-suppression support materials. Recovery of foam reduces the mass and the volume of material going to the landfill by about 5% and 30%, respectively. Annually, recovery will save about 1.2 x 10{sup 12} Btu of energy, cut the amount of solid waste being landfilled by about 150,000 tons, and eliminate the emission of about 250 tons of volatile organic compounds (VOCs) into the air.

  17. Foams and granular media known state of mat-

    E-Print Network [OSTI]

    Cox, Simon

    Foams and granular media 2 known state of mat- design glasses with de- perties on an industrial n disordered ail in this review, mod- proaches to the glass ledge of advanced liq- renormalization group, FIG a broad range of lengthscales, such as atomic (top left), colloidal (top right) systems, but also in foams

  18. Creation Date: May 7, 2013 Version: 1 Edited by: SR Client Services ITS Managed Document

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Creation Date: May 7, 2013 Version: 1 Edited by: SR Client Services ITS Managed Document VIEW Client Services ITS Managed Document VIEW CLIENT INSTALLATION - MAC Page 2 When prompted with the End Edited by: SR Client Services ITS Managed Document VIEW CLIENT INSTALLATION - MAC Page 3 In Launchpad

  19. Creation Date: Feb 2014 Version: 1 Edited by: LB Application Services ITS Managed Document

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Creation Date: Feb 2014 Version: 1 Edited by: LB Application Services ITS Managed Document VIEW: LB Application Services ITS Managed Document VIEW CLIENT INSTALLATION - MICROSOFT FEB 2014 STUDENT Managed Document VIEW CLIENT INSTALLATION - MICROSOFT FEB 2014 STUDENT Page 3 Virtual Desktop Login

  20. Creation Date: Mar 2014 Version: 1 Edited by: LB Application Services ITS Managed Document

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Creation Date: Mar 2014 Version: 1 Edited by: LB Application Services ITS Managed Document VIEW Date: Mar 2014 Version: 1 Edited by: LB Application Services ITS Managed Document VIEW CLIENT Date: Mar 2014 Version: 1 Edited by: LB Application Services ITS Managed Document VIEW CLIENT

  1. Foam and gel methods for the decontamination of metallic surfaces

    DOE Patents [OSTI]

    Nunez, Luis; Kaminski, Michael Donald

    2007-01-23T23:59:59.000Z

    Decontamination of nuclear facilities is necessary to reduce the radiation field during normal operations and decommissioning of complex equipment. In this invention, we discuss gel and foam based diphosphonic acid (HEDPA) chemical solutions that are unique in that these solutions can be applied at room temperature; provide protection to the base metal for continued applications of the equipment; and reduce the final waste form production to one step. The HEDPA gels and foams are formulated with benign chemicals, including various solvents, such as ionic liquids and reducing and complexing agents such as hydroxamic acids, and formaldehyde sulfoxylate. Gel and foam based HEDPA processes allow for decontamination of difficult to reach surfaces that are unmanageable with traditional aqueous process methods. Also, the gel and foam components are optimized to maximize the dissolution rate and assist in the chemical transformation of the gel and foam to a stable waste form.

  2. Honors Enrichment Contracts Faculty View Page 1 Honors Enrichment Contracts Faculty View

    E-Print Network [OSTI]

    Honors Enrichment Contracts Faculty View Page 1 Honors Enrichment Contracts Faculty View INITIAL APPROVAL #12;Honors Enrichment Contracts Faculty View Page 2 Summary This document contains information about how to make initial and final decisions on Honors Enrichment Contracts submitted by honors

  3. Method of forming a foamed thermoplastic polymer

    DOE Patents [OSTI]

    Duchane, D.V.; Cash, D.L.

    1984-11-21T23:59:59.000Z

    A solid thermoplastic polymer is immersed in an immersant solution comprising a compatible carrier solvent and an infusant solution containing an incompatible liquid blowing agent for a time sufficient for the immersant solution to infuse into the polymer. The carrier solvent is then selectively extracted, preferably by a solvent exchange process in which the immersant solution is gradually diluted with and replaced by the infusant solution, so as to selectively leave behind the infustant solution permanently entrapped in the polymer. The polymer is then heated to volatilize the blowing agent and expand the polymer into a foamed state.

  4. Growth of aqueous foam on flexible membranes

    E-Print Network [OSTI]

    Hiroyuki Shima

    2009-05-30T23:59:59.000Z

    In this paper, I study the coarsening dynamics of two-dimensional dry foam sandwiched by deformable membranes. The time-varying deformation of the confining membranes gives rise to a significant alteration in the evolution of polygonal cells of bubbles when compared to the case of rigid membranes. This alteration is attributed to the correlation between the rate of inter-cell gas transfer and temporal fluctuation in surface curvature within a cell domain. The existing material constants are referred to understand the utility of the correlation effect toward the artificial control of the coarsening dynamics.

  5. Fusion Engineering and Design 81 (2006) 455460 Breeder foam: an innovative low porosity solid breeder material

    E-Print Network [OSTI]

    Ghoniem, Nasr M.

    2006-01-01T23:59:59.000Z

    ; Foam processing; Foam applications 1. Introduction Solid breeder blanket concepts are typically based structural and Be material requirements in a breeder blanket. However, high density Li-ceramic foams haveFusion Engineering and Design 81 (2006) 455460 Breeder foam: an innovative low porosity solid

  6. The response of clamped sandwich plates with metallic foam cores to simulated blast loading

    E-Print Network [OSTI]

    Fleck, Norman A.

    projectiles. The sandwich plates comprise AISI 304 stainless steel face sheets and aluminium alloy metal foam

  7. FATIGUE FAILURE OF AN OPEN CELL AND A CLOSED CELL ALUMINIUM ALLOY FOAM

    E-Print Network [OSTI]

    Fleck, Norman A.

    FATIGUE FAILURE OF AN OPEN CELL AND A CLOSED CELL ALUMINIUM ALLOY FOAM A.-M. HARTE, N. A. FLECK reserved. Keywords: Aluminium alloys; Foams; Fatigue; Plastic collapse 1. INTRODUCTION Metallic foams such as aluminium alloy foams show potential for use in ultra-lightweight metallic structures. Recently, a number

  8. Hybrid fiber reinforced Composite Phenolic foam Amit Desai, Steven R. Nutt

    E-Print Network [OSTI]

    Southern California, University of

    Composite Center Hybrid Composite Phenolic foams were reinforced with glass and aramid fibers in different the hybrid foams exhibited higher strength and modulus as compared to foams reinforced with only glass with only glass fibers of different length , the elastic properties of foam such as modulus and density do

  9. Foam flow around an obstacle: obstacle-wall interaction , B. Dollet2

    E-Print Network [OSTI]

    Cox, Simon

    two-dimensional (2D) foams, such as can be made by squeezing a foam between two glass plates soFoam flow around an obstacle: obstacle-wall interaction S.J. Cox1 , B. Dollet2 , F. Graner2 1- chanics, University of Wales Aberystwyth, Ceredigion SY23 3BZ, UK, e-mail: foams@aber.ac.uk 2 Spectrom

  10. Localization of topological changes in Couette and Poiseuille flows of two-dimensional foams

    E-Print Network [OSTI]

    Cox, Simon

    -dimensional (2D) foams, such as can be made by squeezing a foam between parallel glass plates until it consistsLocalization of topological changes in Couette and Poiseuille flows of two-dimensional foams S. Quasistatic simulations show that the topological changes or plastic events that occur when an aqueous foam

  11. Pyrophoric metal-carbon foam composites and methods of making the same

    DOE Patents [OSTI]

    Gash, Alexander E. (Brentwood, CA); Satcher, Jr., Joe H. (Patterson, CA); Simpson, Randall L. (Livermore, CA); Baumann, Theodore F. (Discovery Bay, CA); Worsley, Marcus A. (Belmont, CA)

    2012-05-08T23:59:59.000Z

    A method for creating a pyrophoric material according to one embodiment includes thermally activating a carbon foam for creating micropores therein; contacting the activated carbon foam with a liquid solution comprising a metal salt for depositing metal ions in the carbon foam; and reducing the metal ions in the foam to metal particles. A pyrophoric material in yet another embodiment includes a pyrophoric metal-carbon foam composite comprising a carbon foam having micropores and mesopores and a surface area of greater than or equal to about 2000 m.sup.2/g, and metal particles in the pores of the carbon foam. Additional methods and materials are also disclosed.

  12. Materials Applications for Non-Lethal: Aqueous Foams

    SciTech Connect (OSTI)

    GOOLSBY,TOMMY D.; SCOTT,STEVEN H.

    1999-09-15T23:59:59.000Z

    High expansion aqueous foam is an aggregation of bubbles that has the appearance of soap suds and is used to isolate individuals both visually and acoustically. It was developed in the 1920's in England to fight coal mine fires and has been widely used since for fire fighting and dust suppression. It was developed at Sandia National Laboratories (SNL) in the 1970's for nuclear safeguards and security applications. In the mid-1990s, the National Institute of Justice (NIJ), the research arm of the Department of Justice, began a project with SNL to determine the applicability of high expansion aqueous foam for correctional applications. NIJ funded the project as part of its search for new and better less-than-lethal weapons for responding to violent and dangerous individuals, where other means of force could lead to serious injuries. The phase one objectives of the project were to select a low-to-no toxicity foam concentrate (foaming agent) with physical characteristics suited for use in a single cell or large prison disturbances, and to determine if the selected foam concentrate could serve as a carrier for Oleoresin Capsicum (OC) irritant. The phase two objectives were to conduct an extensive toxicology review of the selected foam concentrate and OC irritant, and to conduct respiration simulation experiments in the selected high expansion aqueous foam. The phase three objectives were to build a prototype individual cell aqueous foam system and to study the feasibility of aqueous foams for large prison facility disturbances. The phase four and five objectives were to use the prototype system to do large scale foam physical characteristics testing of the selected foam concentrate, and to have the prototype single cell system further evaluated by correctional representatives. Prison rather than street scenarios were evaluated as the first and most likely place for using the aqueous foam since prisons have recurrent incidents where officers and inmates might be seriously injured during violent confrontations. The very low density of the high expansion foam also makes it more suitable for indoor use. This paper summarizes the results of the project.

  13. Documenting Spreadsheets

    E-Print Network [OSTI]

    Payette, Raymond

    2008-01-01T23:59:59.000Z

    This paper discusses spreadsheets documentation and new means to achieve this end by using Excel's built-in "Comment" function. By structuring comments, they can be used as an essential tool to fully explain spreadsheet. This will greatly facilitate spreadsheet change control, risk management and auditing. It will fill a crucial gap in corporate governance by adding essential information that can be managed in order to satisfy internal controls and accountability standards.

  14. Gravity as Quantum Foam In-Flow

    E-Print Network [OSTI]

    Cahill, R T

    2003-01-01T23:59:59.000Z

    The new information-theoretic Process Physics provides an explanation of space as a quantum foam system in which gravity is an inhomogeneous flow of the quantum foam into matter. The older Newtonian and General Relativity theories for gravity are analysed. It is shown that Newtonian gravity may be written in the form of an in-flow. General Relativity is also analysed as an in-flow, for those cases where it has been tested. An analysis of various experimental data demonstrates that absolute motion relative to space has been observed by Michelson and Morley, Miller, Illingworth, Jaseja et al, Torr and Kolen, and by DeWitte. The Dayton Miller and Roland DeWitte data also reveal the in-flow of space into matter which manifests as gravity. The experimental data suggests that the in-flow is turbulent, which amounts to the observation of a gravitational wave phenomena. A new in-flow theory of gravity is proposed which passes all the tests that General Relativity was claimed to have passed, but as well the new theory...

  15. Gravity as Quantum Foam In-Flow

    E-Print Network [OSTI]

    Reginald T Cahill

    2003-07-01T23:59:59.000Z

    The new information-theoretic Process Physics provides an explanation of space as a quantum foam system in which gravity is an inhomogeneous flow of the quantum foam into matter. The older Newtonian and General Relativity theories for gravity are analysed. It is shown that Newtonian gravity may be written in the form of an in-flow. General Relativity is also analysed as an in-flow, for those cases where it has been tested. An analysis of various experimental data demonstrates that absolute motion relative to space has been observed by Michelson and Morley, Miller, Illingworth, Jaseja et al, Torr and Kolen, and by DeWitte. The Dayton Miller and Roland DeWitte data also reveal the in-flow of space into matter which manifests as gravity. The experimental data suggests that the in-flow is turbulent, which amounts to the observation of a gravitational wave phenomena. A new in-flow theory of gravity is proposed which passes all the tests that General Relativity was claimed to have passed, but as well the new theory suggests that the so-called spiral galaxy rotation-velocity anomaly may be explained without the need of `dark matter'. Various other gravitational anomalies also appear to be explainable. Newtonian gravity appears to be strictly valid only outside of spherically symmetric matter systems.

  16. Note and calculations concerning elastic dilatancy in 2D glass-glass liquid foams

    E-Print Network [OSTI]

    Franois Molino; Pierre Rognon; Cyprien Gay

    2010-10-30T23:59:59.000Z

    When deformed, liquid foams tend to raise their liquid contents like immersed granular materials, a phenomenon called dilatancy. We have aready described a geometrical interpretation of elastic dilatancy in 3D foams and in very dry foams squeezed between two solid plates (2D GG foams). Here, we complement this work in the regime of less dry 2D GG foams. In particular, we highlight the relatively strong dilatancy effects expected in the regime where we have predicted rapid Plateau border variations.

  17. Aspiration tests in aqueous foam using a breathing simulator

    SciTech Connect (OSTI)

    Archuleta, M.M.

    1995-12-01T23:59:59.000Z

    Non-toxic aqueous foams are being developed by Sandia National Laboratories (SNL) for the National Institute of Justice (NIJ) for use in crowd control, cell extractions, and group disturbances in the criminal justice prison systems. The potential for aspiration of aqueous foam during its use and the resulting adverse effects associated with complete immersion in aqueous foam is of major concern to the NIJ when examining the effectiveness and safety of using this technology as a Less-Than-Lethal weapon. This preliminary study was designed to evaluate the maximum quantity of foam that might be aspirated by an individual following total immersion in an SNL-developed aqueous foam. A.T.W. Reed Breathing simulator equipped with a 622 Silverman cam was used to simulate the aspiration of an ammonium laureth sulfate aqueous foam developed by SNL and generated at expansion ratios in the range of 500:1 to 1000:1. Although the natural instinct of an individual immersed in foam is to cover their nose and mouth with a hand or cloth, thus breaking the bubbles and decreasing the potential for aspiration, this study was performed to examine a worst case scenario where mouth breathing only was examined, and no attempt was made to block foam entry into the breathing port. Two breathing rates were examined: one that simulated a sedentary individual with a mean breathing rate of 6.27 breaths/minute, and one that simulated an agitated or heavily breathing individual with a mean breathing rate of 23.7 breaths/minute. The results of this study indicate that, if breathing in aqueous foam without movement, an air pocket forms around the nose and mouth within one minute of immersion.

  18. Toxicity evaluation and hazard review for Rigid Foam

    SciTech Connect (OSTI)

    Archuleta, M.M.; Stocum, W.E.

    1994-02-01T23:59:59.000Z

    Rigid Foam is a chemical delay foam used to completely encapsulate an object or to block access to an area. Prior studies have indicated that the final foam product is essentially non-toxic. The purpose of this study was to evaluate and summarize the current chemical and toxicological data available on the components of Rigid Foam and to update the information available on the toxicity of the final Rigid Foam product. Since the possibility exists for a partial deployment of Rigid Foam where only one of the components is released, this study also examined the toxicity of its chemical constituents. Rigid Foam is composed of an {open_quotes}A{close_quotes} and {open_quotes}B{close_quotes} Component. The {open_quotes}A{close_quotes} component is primarily a polymeric isocyanate and the {open_quotes}B{close_quotes} component is a mixture of polyols. In addition to the primary constituents, dichlorodifluoromethane and trichlorofluoromethane are present as blowing agents along with catalysts and silicone surfactants necessary for foaming. The pre-deployed {open_quotes}A{close_quotes} and {open_quotes}B{close_quotes} components are stored in separate vessels and are brought together in static mixing nozzles for dispersal. The results of this evaluation indicate that a completely deployed Rigid Foam under normal conditions is essentially non-toxic as determined previously. However, in the event of a partial deployment or deployment of an individual component directly at an unprotected individual, the degree of hazard is increased due to the toxic and corrosive nature of the individual constituents. The health hazard would depend on the properties of the material to which the person was exposed.

  19. Innovative Technologies to Manufacture Hybrid Metal Foam/Composite Components

    SciTech Connect (OSTI)

    Carrino, L.; Durante, M.; Franchitti, S. [DIMP, University of Naples 'Federico II', P.le Tecchio, 80-80125 Naples (Italy); Sorrentino, L.; Tersigni, L. [DII, University of Cassino, Via G. Di Biasio, 43-03043 Cassino (Italy)

    2011-01-17T23:59:59.000Z

    The aim of this paper is to verify the technological feasibility to realize hybrid metal-foam/composite component and the mechanical performances of the final structure. The hybrid component is composed by a cylindrical core in aluminum foam, the most used between those commercially available, and an outer layer in epoxy/S2-glass, manufactured by filament winding technology.A set of experimental tests have been carried out, to the aim to estimate the improvement of the hybrid component characteristics, compared to the sum of the single components (metal foam cylinder and epoxy/S2-glass tube).

  20. Document13

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract ManagementDiscovering How Muscles ReallyDDT DDTViewDoDocument

  1. Reference Documents

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection RadiationRecord-SettingHead ofReference-Documents Sign In About |

  2. Document Information

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEA : Papers69 Federal Register / Vol. 71, No.5 Document

  3. Note and calculations concerning elastic dilatancy in 2D glassglass liquid foams Francois Molino, Pierre Rognon, and Cyprien Gay #

    E-Print Network [OSTI]

    Recanati, Catherine

    Note and calculations concerning elastic dilatancy in 2D glass­glass liquid foams Fran?cois Molino: October 30, 2010) When deformed, liquid foams tend to raise their liquid contents like immersed granular dilatancy in 3D foams and in very dry foams squeezed between two solid plates (2D GG foams). Here, we

  4. Method for making thin carbon foam electrodes

    DOE Patents [OSTI]

    Pekala, R.W.; Mayer, S.T.; Kaschmitter, J.L.; Morrison, R.L.

    1999-08-03T23:59:59.000Z

    A method for fabricating thin, flat carbon electrodes by infiltrating highly porous carbon papers, membranes, felts, metal fibers/powders, or fabrics with an appropriate carbon foam precursor material is disclosed. The infiltrated carbon paper, for example, is then cured to form a gel-saturated carbon paper, which is subsequently dried and pyrolyzed to form a thin sheet of porous carbon. The material readily stays flat and flexible during curing and pyrolyzing to form thin sheets. Precursor materials include polyacrylonitrile (PAN), polymethylacrylonitrile (PMAN), resorcinol/formaldehyde, catechol/formaldehyde, phenol/formaldehyde, etc., or mixtures thereof. These thin films are ideal for use as high power and energy electrodes in batteries, capacitors, and fuel cells, and are potentially useful for capacitive deionization, filtration and catalysis.

  5. Capacitor with a composite carbon foam electrode

    DOE Patents [OSTI]

    Mayer, Steven T. (San Leandro, CA); Pekala, Richard W. (Pleasant Hill, CA); Kaschmitter, James L. (Pleasanton, CA)

    1999-01-01T23:59:59.000Z

    Carbon aerogels used as a binder for granularized materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid partides being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivity and power to system energy.

  6. Capacitor with a composite carbon foam electrode

    DOE Patents [OSTI]

    Mayer, S.T.; Pekala, R.W.; Kaschmitter, J.L.

    1999-04-27T23:59:59.000Z

    Carbon aerogels used as a binder for granularized materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid particles being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivity and power to system energy. 1 fig.

  7. Method for fabricating composite carbon foam

    DOE Patents [OSTI]

    Mayer, Steven T. (San Leandro, CA); Pekala, Richard W. (Pleasant Hill, CA); Kaschmitter, James L. (Pleasanton, CA)

    2001-01-01T23:59:59.000Z

    Carbon aerogels used as a binder for granularized materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid particles being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivity and power to system energy.

  8. CPUF - a chemical-structure-based polyurethane foam decomposition and foam response model.

    SciTech Connect (OSTI)

    Fletcher, Thomas H. (Brigham Young University, Provo, UT); Thompson, Kyle Richard; Erickson, Kenneth L.; Dowding, Kevin J.; Clayton, Daniel (Brigham Young University, Provo, UT); Chu, Tze Yao; Hobbs, Michael L.; Borek, Theodore Thaddeus III

    2003-07-01T23:59:59.000Z

    A Chemical-structure-based PolyUrethane Foam (CPUF) decomposition model has been developed to predict the fire-induced response of rigid, closed-cell polyurethane foam-filled systems. The model, developed for the B-61 and W-80 fireset foam, is based on a cascade of bondbreaking reactions that produce CO2. Percolation theory is used to dynamically quantify polymer fragment populations of the thermally degrading foam. The partition between condensed-phase polymer fragments and gas-phase polymer fragments (i.e. vapor-liquid split) was determined using a vapor-liquid equilibrium model. The CPUF decomposition model was implemented into the finite element (FE) heat conduction codes COYOTE and CALORE, which support chemical kinetics and enclosure radiation. Elements were removed from the computational domain when the calculated solid mass fractions within the individual finite element decrease below a set criterion. Element removal, referred to as ?element death,? creates a radiation enclosure (assumed to be non-participating) as well as a decomposition front, which separates the condensed-phase encapsulant from the gas-filled enclosure. All of the chemistry parameters as well as thermophysical properties for the CPUF model were obtained from small-scale laboratory experiments. The CPUF model was evaluated by comparing predictions to measurements. The validation experiments included several thermogravimetric experiments at pressures ranging from ambient pressure to 30 bars. Larger, component-scale experiments were also used to validate the foam response model. The effects of heat flux, bulk density, orientation, embedded components, confinement and pressure were measured and compared to model predictions. Uncertainties in the model results were evaluated using a mean value approach. The measured mass loss in the TGA experiments and the measured location of the decomposition front were within the 95% prediction limit determined using the CPUF model for all of the experiments where the decomposition gases were vented sufficiently. The CPUF model results were not as good for the partially confined radiant heat experiments where the vent area was regulated to maintain pressure. Liquefaction and flow effects, which are not considered in the CPUF model, become important when the decomposition gases are confined.

  9. Spectroscopic diagnosis of foam z-pinch plasmas on SATURN

    SciTech Connect (OSTI)

    Nash, T.J.; Derzon, M.S.; Allshouse, G.; Deeney, C.; Jobe, D.; Seaman, J.; Gilliland, T.; McGurn, J. [Sandia National Laboratories, Albuquerque, New Mexico 87185-1193 (United States)] [Sandia National Laboratories, Albuquerque, New Mexico 87185-1193 (United States); MacFarlane, J.J.; Wang, P. [University of Wisconsin, Madison, Wisconsin (United States)] [University of Wisconsin, Madison, Wisconsin (United States)

    1997-01-01T23:59:59.000Z

    Solid and annular silicon aerogel and agar foams were imploded on the SATURN accelerator to study plasma initiation, acceleration, and stagnation. SATURN delivers 7 MA with a 50 ns rise time to these foam loads. We fielded several spectroscopic diagnostics to measure plasma parameters throughout the z-pinch discharge. A spatially resolved single frame time-gated extreme ultraviolet spectrometer measured the extent of plasma ablation off the surface of the foam. A time integrated crystal spectrometer showed that characteristic K shell radiation of silicon in the aerogel and of sulfur and sodium impurities in the agar were attenuated when the foam loads were coated with a conductive layer of gold. A time-resolved pinhole camera showed that in general the quality of the pinch implosions was poor but improved with increasing efforts to improve current continuity such as prepulse and conductive coatings. {copyright} {ital 1997 American Institute of Physics.}

  10. Spectroscopic diagnosis of foam z-pinch plasmas on SATURN

    SciTech Connect (OSTI)

    Nash, T.J.; Derzon, M.S.; Allshouse, G.; Deeney, C.; Jobe, D.; McGurn, J. [Sandia National Labs., Albuquerque, NM (United States); MacFarlane, J.J.; Wang, P. [Wisconsin Univ., Madison, WI (United States)

    1996-06-01T23:59:59.000Z

    Solid and annular silicon aerogel and agar foams were shot on the accelerator SATURN to study plasma initiation, acceleration, and stagnation. SATURN delivers 7 MA with a 50 nsec rise time to these foam loads. We fielded several spectroscopic diagnostics to measure plasma parameters throughout the z-pinch discharge. A spatially resolved single frame time-gated EUV spectrometer measured the extent of plasma ablation off the surface foam. A time integrated crystal spectrometer showed that characteristic K shell radiation of silicon in the aerogel and of S and Na impurities in the agar were all attenuated when the foam loads were coated with a conductive layer of gold. The time resolved pinhole camera showed that in general the quality of the pinch implosions was poor but improved with increasing efforts to improve current continuity such as prepulse and conductive coatings.

  11. Carbon foam characterization: sandwich flexure, tensile and shear response

    E-Print Network [OSTI]

    Sarzynski, Melanie Diane

    2004-09-30T23:59:59.000Z

    The focus of this research is characterizing a new material system composed of carbon and graphite foams, which has potential in a wide variety of applications encompassing aerospace, military, offshore, power production and other commercial...

  12. Carbon foam characterization: sandwich flexure, tensile and shear response

    E-Print Network [OSTI]

    Sarzynski, Melanie Diane

    2004-09-30T23:59:59.000Z

    The focus of this research is characterizing a new material system composed of carbon and graphite foams, which has potential in a wide variety of applications encompassing aerospace, military, offshore, power production and other commercial...

  13. Graphite Foams for Lithium-Ion Battery Current Collectors

    SciTech Connect (OSTI)

    Dudney, Nancy J [ORNL; Tiegs, Terry N [ORNL; Kiggans, Jim [ORNL; Jang, Young-Il [ORNL; Klett, James William [ORNL

    2007-01-01T23:59:59.000Z

    Graphite open-cell foams, with their very high electronic and thermal conductivities, may serve as high surface area and corrosion resistant current collectors for lithium-ion batteries. As a proof of principle, cathodes were prepared by sintering carbon-coated LiFePO4 particles into the porous graphite foams. Cycling these cathodes in a liquid electrolyte cell showed promising performance even for materials and coatings that have not been optimized. The specific capacity is not limited by the foam structure, but by the cycling performance of the coated LiFePO4 particles. Upon extended cycling for more than 100 deep cycles, no loss of capacity is observed for rates of C/2 or less. The uncoated graphite foams will slowly intercalate lithium reversibly at potentials less than 0.2 volts versus lithium.

  14. Process for producing carbon foams for energy storage devices

    DOE Patents [OSTI]

    Kaschmitter, J.L.; Mayer, S.T.; Pekala, R.W.

    1998-08-04T23:59:59.000Z

    A high energy density capacitor incorporating a variety of carbon foam electrodes is described. The foams, derived from the pyrolysis of resorcinol-formaldehyde and related polymers, are high density (0.1 g/cc--1.0 g/cc) electrically conductive and have high surface areas (400 m{sup 2}/g--1,000 m{sup 2}/g). Capacitances on the order of several tens of farad per gram of electrode are achieved. 9 figs.

  15. Process for producing carbon foams for energy storage devices

    DOE Patents [OSTI]

    Kaschmitter, James L. (Pleasanton, CA); Mayer, Steven T. (San Leandro, CA); Pekala, Richard W. (Pleasant Hill, CA)

    1998-01-01T23:59:59.000Z

    A high energy density capacitor incorporating a variety of carbon foam electrodes is described. The foams, derived from the pyrolysis of resorcinol-formaldehyde and related polymers, are high density (0.1 g/cc-1.0 g/cc) electrically conductive and have high surface areas (400 m.sup.2 /g-1000 m.sup.2 /g). Capacitances on the order of several tens of farad per gram of electrode are achieved.

  16. Plans, Updates, Regulatory Documents

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

    Stewardship Environmental Protection Obeying Environmental Laws Individual Permit Documents Individual Permit: Plans, Updates, Regulatory Documents1335769200000Plans...

  17. XML Document XML Document Types and Validation

    E-Print Network [OSTI]

    Weber, Gregory D.

    XML Document Types and Validation IIM-I340 Objectives XML Document Types and Validation IIM-I340 April, 2010 #12;XML Document Types and Validation IIM-I340 Objectives Learning Objectives Understand: The need for validation Two ways to specify validity: Document Type Definitions (DTDs) XML Schemas #12;XML

  18. Omega documentation

    SciTech Connect (OSTI)

    Howerton, R.J.; Dye, R.E.; Giles, P.C.; Kimlinger, J.R.; Perkins, S.T.; Plechaty, E.F.

    1983-08-01T23:59:59.000Z

    OMEGA is a CRAY I computer program that controls nine codes used by LLNL Physical Data Group for: 1) updating the libraries of evaluated data maintained by the group (UPDATE); 2) calculating average values of energy deposited in secondary particles and residual nuclei (ENDEP); 3) checking the libraries for internal consistency, especially for energy conservation (GAMCHK); 4) producing listings, indexes and plots of the library data (UTILITY); 5) producing calculational constants such as group averaged cross sections and transfer matrices for diffusion and Sn transport codes (CLYDE); 6) producing and updating standard files of the calculational constants used by LLNL Sn and diffusion transport codes (NDFL); 7) producing calculational constants for Monte Carlo transport codes that use group-averaged cross sections and continuous energy for particles (CTART); 8) producing and updating standard files used by the LLNL Monte Carlo transport codes (TRTL); and 9) producing standard files used by the LANL pointwise Monte Carlo transport code MCNP (MCPOINT). The first four of these functions and codes deal with the libraries of evaluated data and the last five with various aspects of producing calculational constants for use by transport codes. In 1970 a series, called PD memos, of internal and informal memoranda was begun. These were intended to be circulated among the group for comment and then to provide documentation for later reference whenever questions arose about the subject matter of the memos. They have served this purpose and now will be drawn upon as source material for this more comprehensive report that deals with most of the matters covered in those memos.

  19. Self-Similar Collapse of Stationary Bulk Foams Tad W. Patzek

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    flotation (Sutherland and Clark, 1955). Foam barriers might also be used to control gas mi- gration again. Preformed drilling foams are used to lift crushed rock, sand or mud, and their lifetimes

  20. Control of Vapor Dispersion and Pool Fire of Liquefied Natural Gas (LNG) with Expansion Foam

    E-Print Network [OSTI]

    Yun, Geun Woong

    2011-10-21T23:59:59.000Z

    in outdoor field tests. Thus, this research focused on experimental determination of the effect of expansion foam application on LNG vapor dispersion and pool fire. Specifically, for evaluating the use of foam to control the vapor hazard from spilled LNG...

  1. Alkali corrosion resistant coatings and ceramic foams having superfine open cell structure and method of processing

    DOE Patents [OSTI]

    Brown, Jr., Jesse J. (Christiansburg, VA); Hirschfeld, Deidre A. (Elliston, VA); Li, Tingkai (Blacksburg, VA)

    1993-12-07T23:59:59.000Z

    Alkali corrosion resistant coatings and ceramic foams having superfine open cell structure are created using sol-gel processes. The processes have particular application in creating calcium magnesium zirconium phosphate, CMZP, coatings and foams.

  2. Mesoscale simulation of shocked poly-(4-methyl-1-pentene) (PMP) foams.

    SciTech Connect (OSTI)

    Schroen, Diana Grace; Flicker, Dawn G.; Haill, Thomas A.; Root, Seth; Mattsson, Thomas Kjell Rene

    2011-06-01T23:59:59.000Z

    Hydrocarbon foams are commonly used in HEDP experiments, and are subject to shock compression from tens to hundreds of GPa. Modeling foams is challenging due to the heterogeneous character of the foam. A quantitative understanding of foams under strong dynamic compression is sought. We use Sandia's ALEGRA-MHD code to simulate 3D mesoscale models of pure poly(4-methyl-1-petene) (PMP) foams. We employ two models of the initial polymer-void structure of the foam and analyze the statistical properties of the initial and shocked states. We compare the simulations to multi-Mbar shock experiments at various initial foam densities and flyer impact velocities. Scatter in the experimental data may be a consequence of the initial foam inhomogeneity. We compare the statistical properties the simulations with the scatter in the experimental data.

  3. The Effect of Moisture Absorption on the Physical Properties of Polyurethane Shape Memory Polymer Foams

    E-Print Network [OSTI]

    Yu, Ya-Jen

    2012-07-16T23:59:59.000Z

    The effect of moisture absorption on the glass transition temperature (Tg) and stress/strain behavior of network polyurethane shape memory polymer (SMP) foams has been investigated. With our ultimate goal of engineering polyurethane SMP foams...

  4. Carbon or graphite foam as a heating element and system thereof

    DOE Patents [OSTI]

    Ott, Ronald D. (Knoxville, TN) [Knoxville, TN; McMillan, April D. (Knoxville, TN) [Knoxville, TN; Choudhury, Ashok (Oak Ridge, TN) [Oak Ridge, TN

    2004-05-04T23:59:59.000Z

    A temperature regulator includes at least one electrically conductive carbon foam element. The foam element includes at least two locations adapted for receiving electrical connectors thereto for heating a fluid, such as engine oil. A combustion engine includes an engine block and at least one carbon foam element, the foam element extending into the engine block or disposed in thermal contact with at least one engine fluid.

  5. Collapse mechanisms of sandwich beams with composite faces and a foam core,

    E-Print Network [OSTI]

    Fleck, Norman A.

    - strated for aluminium alloy face sheets and polymeric foam cores, it has since been extended to other

  6. Shape memory poly(3-caprolactone)-co-poly(ethylene glycol) foams with body temperature triggering and

    E-Print Network [OSTI]

    Mather, Patrick T.

    Shape memory poly(3-caprolactone)-co-poly(ethylene glycol) foams with body temperature triggering the fabrication of porous foams with shape memory triggering at body temperature. Employing a modified porogen are crosslinked via thiolene chemistry to generate highly porous foam scaffolds with shape memory capacity

  7. Foam Control using a Fluidized Bed of Hydrophobic Particles by Clara Mata*

    E-Print Network [OSTI]

    Joseph, Daniel D.

    Applications of foams and foaming are found in many industries like the flotation of minerals, enhanced oil recovery, drilling in oil reservoirs, insulation, construction and refining processes such as Vacuum and foaming are found in many industries like the flotation of minerals, enhanced oil recovery, drilling

  8. Composites: Part B 44 (2013) 584591 584 Tensile Properties of Carbon Nanofiber Reinforced Multiscale Syntactic Foams

    E-Print Network [OSTI]

    Gupta, Nikhil

    The mechanical behavior of hollow glass microballoon-epoxy matrix syntactic foams reinforced with carbon compositions of syntactic foams, epoxy resins filled with glass microballoons are widely studied due to the extensive use of epoxy resins in aerospace applications [5-7]. Studies on these glass/epoxy syntactic foams

  9. 1Cellular Polymers, Vol. 26, No. 1, 2007 On the Bulk Modulus of Open Cell Foams

    E-Print Network [OSTI]

    Lakes, Roderic

    Hydrostaticcompressionoffoamisofinterestinavarietyofcontextsincluding under-sea applications. Syntactic foam, for instance, consists of hollow glass1Cellular Polymers, Vol. 26, No. 1, 2007 On the Bulk Modulus of Open Cell Foams © Rapra Technology, 2007 On the Bulk Modulus of Open Cell Foams B. Moore, T. Jaglinski, D.S. Stone§ and R.S. Lakes

  10. Glass foams: formation, transport properties, and heat, mass, and radiation transfer

    E-Print Network [OSTI]

    Pilon, Laurent

    Glass foams: formation, transport properties, and heat, mass, and radiation transfer Andrei G depend, to a large extent, on foams formed on the surface of the molten glass and of the batch due models for thermophysical and transport properties and heat, mass, and radiation transfer in glass foams

  11. Sedimenting discs in a two-dimensional foam I. T. Davies, S. J. Cox

    E-Print Network [OSTI]

    Cox, Simon

    -dimensional foams can be thought of as a monolayer of bubbles squeezed between two glass plates. We choose to probeSedimenting discs in a two-dimensional foam I. T. Davies, S. J. Cox Institute of Mathematics in a dry two-dimensional, monodisperse foam is studied. This, a variation of the classical Stokes

  12. Experimental characterization and numerical simulations of a syntactic-foam/glass-bre composite sandwich

    E-Print Network [OSTI]

    Corigliano, Alberto

    Experimental characterization and numerical simulations of a syntactic-foam/glass-®bre composite core. Such core consists of a syntactic foam made by hollow glass microspheres embedded in an epoxy. Keywords: A. Glass ®bre; Composite sandwich; Syntactic foam; Mechanical tests; Numerical simulations (FE) 1

  13. Plateau border bulimia transition: discontinuities expected in three simple experiments on 2D liquid foams

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    be observable. II. 2D GLASS-GLASS FOAM GEOMETRICAL VADEMECUM In the present section, we shall provide a geometri- cal description and some corresponding results for two- dimensional foams squeezed between two glass liquid foams Pierre Rognon, Fran¸cois Molino, and Cyprien Gay Centre de Recherche Paul Pascal, CNRS, UPR

  14. Plateau border bulimia transition: discontinuities expected in three simple experiments on 2D liquid foams

    E-Print Network [OSTI]

    Recanati, Catherine

    be observable. II. 2D GLASS-GLASS FOAM GEOMETRICAL VADEMECUM In the present section, we shall provide a geometri- cal description and some corresponding results for two- dimensional foams squeezed between two glass liquid foams Pierre Rognon, Fran#24;cois Molino, and Cyprien Gay #3; Centre de Recherche Paul Pascal

  15. Thermal resistance of composite panels containing superinsulation and urethane foam

    SciTech Connect (OSTI)

    Wilkes, K.E.; Graves, R.S.; Childs, K.W.

    1996-09-01T23:59:59.000Z

    Laboratory data are presented on the thermal resistance of composite panels that incorporate superinsulation embedded in urethane foam. Composite panels were fabricated using four types of advanced insulations (three types of evacuated panel superinsulation and one type of gas-filled panel), and three foam blowing agents (CFC-11, HCFC-141b, and HCFC-142b/22 blend). Panels were also fabricated with only the urethane foam to serve as a baseline. Thermal measurements were performed using an ASTM C 518 Heat Flow Meter Apparatus. The thermal resistances of the panels were measured over a two-year period to detect whether any significant changes occurred. A computer model was used to analyze the data, adjusting for differences in size of the advanced insulations, and extrapolating to different sizes of composite panels.

  16. Thermal resistance of superinsulation/foam composite panels

    SciTech Connect (OSTI)

    Wilkes, K.E.; Graves, R.S.; Childs, K.W.

    1996-05-01T23:59:59.000Z

    Laboratory data are presented on the thermal resistance of composite panels that incorporate superinsulation embedded in urethane foam. Composite panels were fabricated using four types of advanced insulations (three types of evacuated panel superinsulation and one type of gas-filled panel), and three foam blowing agents (CFC-11, HCFC-141b, and HCFC-142b/22 blend). Panels were also fabricated with only the urethane foam to serve as a baseline. Thermal measurements were performed using an ASTM C 518 Heat Flow Meter Apparatus. The thermal resistances of the panels were measured over a two-year period to detect whether any significant changes occurred. A computer model was used to analyze the data, normalizing for differences in size of the advanced insulations, and extrapolating to different sizes of composite panels.

  17. Ultra-low density microcellular polymer foam and method

    DOE Patents [OSTI]

    Simandl, R.F.; Brown, J.D.

    1996-03-19T23:59:59.000Z

    An ultra-low density, microcellular open-celled polymer foam and a method for making such foam are disclosed. A polymer is dissolved in a heated solution consisting essentially of at least one solvent for the dissolution of the polymer in the heated solution and the phase inversion of the dissolved polymer to a liquid gel upon sufficient cooling of the heated solution. The heated solution is contained in a containment means provided with a nucleating promoting means having a relatively rough surface formed of fixed nucleating sites. The heated solution is cooled for a period of time sufficient to form a liquid gel of the polymer by phase inversion. From the gel, a porous foam having a density of less than about 12.0 mg/cm{sup 3} and open porosity provided by well interconnected strut morphology is formed.

  18. Ultra-low density microcellular polymer foam and method

    DOE Patents [OSTI]

    Simandl, Ronald F. (Farragut, TN); Brown, John D. (Harriman, TN)

    1996-01-01T23:59:59.000Z

    An ultra-low density, microcellular open-celled polymer foam and a method for making such foam. A polymer is dissolved in a heated solution consisting essentially of at least one solvent for the dissolution of the polymer in the heated solution and the phase inversion of the dissolved polymer to a liquid gel upon sufficient cooling of the heated solution. The heated solution is contained in a containment means provided with a nucleating promoting means having a relatively rough surface formed of fixed nucleating sites. The heated solution is cooled for a period of time sufficient to form a liquid gel of the polymer by phase inversion. From the gel, a porous foam having a density of less than about 12.0 mg/cm.sup.3 and open porosity provided by well interconnected strut morphology is formed.

  19. Method for epoxy foam production using a liquid anhydride

    DOE Patents [OSTI]

    Celina, Mathias (Albuquerque, NM)

    2012-06-05T23:59:59.000Z

    An epoxy resin mixture with at least one epoxy resin of between approximately 50 wt % and 100 wt %, an anhydride cure agent of between approximately 0 wt % and approximately 50 wt %, a tert-butoxycarbonyl anhydride foaming agent of between proximately 0.1-20 wt %, a surfactant and an imidazole or similar catalyst of less than approximately 2 wt %, where the resin mixture is formed from at least one epoxy resin with a 1-10 wt % tert-butoxycarbonyl anhydride compound and an imidazole catalyst at a temperature sufficient to keep the resin in a suitable viscosity range, the resin mixture reacting to form a foaming resin which in the presence of an epoxy curative can then be cured at a temperature greater than 50.degree. C. to form an epoxy foam.

  20. Modeling epoxy foams exposed to fire-like heat fluxes.

    SciTech Connect (OSTI)

    Hobbs, Michael L.

    2004-11-01T23:59:59.000Z

    A decomposition chemistry and heat transfer model to predict the response of removable epoxy foam (REF) exposed to fire-like heat fluxes is described. The epoxy foam was created using a perfluorohexane blowing agent with a surfactant. The model includes desorption of the blowing agent and surfactant, thermal degradation of the epoxy polymer, polymer fragment transport, and vapor-liquid equilibrium. An effective thermal conductivity model describes changes in thermal conductivity with reaction extent. Pressurization is modeled assuming: (1) no strain in the condensed-phase, (2) no resistance to gas-phase transport, (3) spatially uniform stress fields, and (4) no mass loss from the system due to venting. The model has been used to predict mass loss, pressure rise, and decomposition front locations for various small-scale and large-scale experiments performed by others. The framework of the model is suitable for polymeric foams with absorbed gases.

  1. Modeling epoxy foams exposed to fire-like heat fluxes.

    SciTech Connect (OSTI)

    Hobbs, Michael L.

    2004-10-01T23:59:59.000Z

    A decomposition chemistry and heat transfer model to predict the response of removable epoxy foam (REF) exposed to fire-like heat fluxes is described. The epoxy foam was created using a perfluorohexane blowing agent with a surfactant. The model includes desorption of the blowing agent and surfactant, thermal degradation of the epoxy polymer, polymer fragment transport, and vapor-liquid equilibrium. An effective thermal conductivity model describes changes in thermal conductivity with reaction extent. Pressurization is modeled assuming: (1) no strain in the condensed-phase, (2) no resistance to gas-phase transport, (3) spatially uniform stress fields, and (4) no mass loss from the system due to venting. The model has been used to predict mass loss, pressure rise, and decomposition front locations for various small-scale and large-scale experiments performed by others. The framework of the model is suitable for polymeric foams with absorbed gases.

  2. Research Data Management - Documentation

    E-Print Network [OSTI]

    Collins, Anna

    2013-01-01T23:59:59.000Z

    This short (16 slide) presentation "Documentation" explains the need to create documentation using several clear examples of the benefits from good documentation (and what can happen if it is not good), making research reproducible...

  3. Foaming and Antifoaming in Radioactive Waste Pretreatment and Immobilization Processes

    SciTech Connect (OSTI)

    Darsh T. Wasan; Alex D. Nikolov; D.P. Lamber; T. Bond Calloway; M.E. Stone

    2005-03-12T23:59:59.000Z

    Savannah River National Laboratory (SRNL) has reported severe foaminess in the bench scale evaporation of the Hanford River Protection - Waste Treatment Plant (RPP-WPT) envelope C waste. Excessive foaming in waste evaporators can cause carryover of radionuclides and non-radioactive waste to the condensate system. The antifoams used at Hanford and tested by SRNL are believed to degrade and become inactive in high pH solutions. Hanford wastes have been known to foam during evaporation causing excessive down time and processing delays.

  4. Coarse graining methods for spin net and spin foam models

    E-Print Network [OSTI]

    Bianca Dittrich; Frank C. Eckert; Mercedes Martin-Benito

    2011-09-22T23:59:59.000Z

    We undertake first steps in making a class of discrete models of quantum gravity, spin foams, accessible to a large scale analysis by numerical and computational methods. In particular, we apply Migdal-Kadanoff and Tensor Network Renormalization schemes to spin net and spin foam models based on finite Abelian groups and introduce `cutoff models' to probe the fate of gauge symmetries under various such approximated renormalization group flows. For the Tensor Network Renormalization analysis, a new Gauss constraint preserving algorithm is introduced to improve numerical stability and aid physical interpretation. We also describe the fixed point structure and establish an equivalence of certain models.

  5. Humidifier for fuel cell using high conductivity carbon foam

    DOE Patents [OSTI]

    Klett, James W.; Stinton, David P.

    2006-12-12T23:59:59.000Z

    A method and apparatus of supplying humid air to a fuel cell is disclosed. The extremely high thermal conductivity of some graphite foams lends itself to enhance significantly the ability to humidify supply air for a fuel cell. By utilizing a high conductivity pitch-derived graphite foam, thermal conductivity being as high as 187 W/m.dot.K, the heat from the heat source is more efficiently transferred to the water for evaporation, thus the system does not cool significantly due to the evaporation of the water and, consequently, the air reaches a higher humidity ratio.

  6. Toxicology evaluation and hazard review for non-CFC containing rigid foams BKC 44317 and last-a-foam MSL-02A

    SciTech Connect (OSTI)

    Greulich, K.A.; Archuleta, M.M.

    1996-06-01T23:59:59.000Z

    New pour-in-place, low density, rigid polyurethane foam kits have been developed to mechanically stabilize damaged explosive ordnance. Although earlier foam systems used chlorofluorocarbons as blowing agents, the current versions rely on carbon dioxide generated by the reaction of isocynates with water. In addition, these kits were developed to manually generate small quantifies of rigid foam in the field with minimal or no protective equipment. The purpose of this study was to evaluate and summarize available hazard information for the components of these rigid foam kits and to provide recommendations for personal protective equipment to be used while performing the manual combination of the components. As with most rigid foam systems, these kits consist of two parts, one a mixture of isocyanates; the other, a combination of polyols, surfactants, and amine catalysts. Once completely deployed, the rigid foam is non-toxic. The components, however, have some important health effects which must be considered when establishing handling procedures.

  7. Sandia Energy - SCADA Documents

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

    Documents Home Stationary Power Grid Modernization Cyber Security for Electric Infrastructure National Supervisory Control and Data Acquisition (SCADA) SCADA Documents SCADA...

  8. An approach to model validation and model-based prediction -- polyurethane foam case study.

    SciTech Connect (OSTI)

    Dowding, Kevin J.; Rutherford, Brian Milne

    2003-07-01T23:59:59.000Z

    Enhanced software methodology and improved computing hardware have advanced the state of simulation technology to a point where large physics-based codes can be a major contributor in many systems analyses. This shift toward the use of computational methods has brought with it new research challenges in a number of areas including characterization of uncertainty, model validation, and the analysis of computer output. It is these challenges that have motivated the work described in this report. Approaches to and methods for model validation and (model-based) prediction have been developed recently in the engineering, mathematics and statistical literatures. In this report we have provided a fairly detailed account of one approach to model validation and prediction applied to an analysis investigating thermal decomposition of polyurethane foam. A model simulates the evolution of the foam in a high temperature environment as it transforms from a solid to a gas phase. The available modeling and experimental results serve as data for a case study focusing our model validation and prediction developmental efforts on this specific thermal application. We discuss several elements of the ''philosophy'' behind the validation and prediction approach: (1) We view the validation process as an activity applying to the use of a specific computational model for a specific application. We do acknowledge, however, that an important part of the overall development of a computational simulation initiative is the feedback provided to model developers and analysts associated with the application. (2) We utilize information obtained for the calibration of model parameters to estimate the parameters and quantify uncertainty in the estimates. We rely, however, on validation data (or data from similar analyses) to measure the variability that contributes to the uncertainty in predictions for specific systems or units (unit-to-unit variability). (3) We perform statistical analyses and hypothesis tests as a part of the validation step to provide feedback to analysts and modelers. Decisions on how to proceed in making model-based predictions are made based on these analyses together with the application requirements. Updating modifying and understanding the boundaries associated with the model are also assisted through this feedback. (4) We include a ''model supplement term'' when model problems are indicated. This term provides a (bias) correction to the model so that it will better match the experimental results and more accurately account for uncertainty. Presumably, as the models continue to develop and are used for future applications, the causes for these apparent biases will be identified and the need for this supplementary modeling will diminish. (5) We use a response-modeling approach for our predictions that allows for general types of prediction and for assessment of prediction uncertainty. This approach is demonstrated through a case study supporting the assessment of a weapons response when subjected to a hydrocarbon fuel fire. The foam decomposition model provides an important element of the response of a weapon system in this abnormal thermal environment. Rigid foam is used to encapsulate critical components in the weapon system providing the needed mechanical support as well as thermal isolation. Because the foam begins to decompose at temperatures above 250 C, modeling the decomposition is critical to assessing a weapons response. In the validation analysis it is indicated that the model tends to ''exaggerate'' the effect of temperature changes when compared to the experimental results. The data, however, are too few and to restricted in terms of experimental design to make confident statements regarding modeling problems. For illustration, we assume these indications are correct and compensate for this apparent bias by constructing a model supplement term for use in the model-based predictions. Several hypothetical prediction problems are created and addressed. Hypothetical problems are used because no guidance was provided concern

  9. Supporting Document Strategic Plan

    E-Print Network [OSTI]

    Auckland, University of

    1 Supporting Document Strategic Plan 20132020 #12;2 Supporting Document Strategic Plan 2013 more critical to the University's future than was the case in 2005. The purpose of this document are summarised via a SWOT analysis in Appendix 1. This document should therefore be read in conjunction

  10. Environmentally-benign Flame Retardant Nanocoating for Foam and Fabric

    E-Print Network [OSTI]

    Cain, Amanda Ashley

    2014-12-09T23:59:59.000Z

    for the purpose of inhibiting or suppressing the combustion cycle. Inspiration for first applying polymer/clay thin films (i.e., nanobrick walls) as flame retardant (FR) coatings to polyurethane foam via LbL came from the final stage of a proposed flame...

  11. Factors Contributing to Petroleum Foaming. 1. Crude Oil Systems

    E-Print Network [OSTI]

    Kilpatrick, Peter K.

    Factors Contributing to Petroleum Foaming. 1. Crude Oil Systems Michael K. Poindexter,*, Nael N production, producers often determine beforehand various processing issues that might be encountered during full-scale production. A host of issues are considered pertinent, some of which include production line

  12. Cometabolic Degradation of TCE Vapors in a Foamed Emulsion

    E-Print Network [OSTI]

    Cometabolic Degradation of TCE Vapors in a Foamed Emulsion Bioreactor E U N S U N G K A N A N D M the experiments, 85-101% of the degraded TCE chlorine was recovered as chloride. Overall, the results suggest to complete degradation of TCE to harmless end products. Unfortunately, no microorganism can grow on TCE

  13. Mechanistic Foam Flow Simulation in Heterogeneous and Multidimensional Porous Media

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    -scale simulation is a vital component of the engineering and economic evaluation of any enhanced oil recovery (EOR Copyright 1997, Society of Petroleum Engineers, Inc. Received for review, April 24, 1997 Revised, July 23 generation, and foam propagation in rock formations. Efficient application and evaluation of candidates

  14. 1 INTRODUCTION Flexible polyurethane foams are usually applied in

    E-Print Network [OSTI]

    Boyer, Edmond

    , producing polyurea and carbon dioxide, with simultaneous expansion of CO2 bubbles (foaming) and polymerization of the mixture. The first step of the expansion is bubble nucleation, where CO2 molecules chemical reactions take place: the first one creates CO2 into the fluid matrix (germination of bubbles

  15. STANDING WAVE PROBES FOR DIMENSIONAL METROLOGY OF LOW DENSITY FOAMS

    SciTech Connect (OSTI)

    Seugling, R M; Woody, S C; Bauza, M B

    2010-03-23T23:59:59.000Z

    Typically, parts and geometries of interest to LLNL are made from a combination of complex geometries and a wide array of different materials ranging from metals and ceramics to low density foams and plastic foils. These parts are combined to develop physics experiments for studying material properties, equation of state (EOS) and radiation transport. Understanding the dimensional uncertainty of the parts contained within an experiment is critical to the physical understanding of the phenomena being observed and represents the motivation for developing probe metrology capability that can address LLNL's unique problems. Standing wave probes were developed for measuring high aspect ratio, micrometer scaled features with nanometer resolution. Originally conceived of for the use in the automotive industry for characterizing fuel injector bores and similar geometries, this concept was investigated and improved for use on geometries and materials important to LLNL needs within target fabrication. As part of the original project, detailed understanding of the probe dynamics and interactions with the surface of the sample was investigated. In addition, the upgraded system was utilized for measuring fuel injector bores and micro-lenses as a means of demonstrating capability. This report discusses the use of the standing wave probe for measuring features in low density foams, 55 mg/cc SiO{sub 2} and 982 mg/cc (%6 relative density) copper foam respectively. These two foam materials represent a difficult metrology challenge because of their material properties and surface topography. Traditional non-contact metrology systems such as normal incident interferometry and/or confocal microscopy have difficulty obtaining a signal from the relatively absorptive characteristics of these materials. In addition to the foam samples, a solid copper and plastic (Rexolite{trademark}) sample of similar geometry was measured with the standing wave probe as a reference for both conductive and dielectric materials.

  16. Note and calculations concerning elastic dilatancy in 2D glass-glass liquid foams Francois Molino, Pierre Rognon, and Cyprien Gay

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Note and calculations concerning elastic dilatancy in 2D glass-glass liquid foams Fran¸cois Molino 30, 2010) When deformed, liquid foams tend to raise their liquid contents like immersed granular dilatancy in 3D foams and in very dry foams squeezed between two solid plates (2D GG foams). Here, we

  17. Prarie View RDF

    Energy Savers [EERE]

    PRAIRIE VIEW RDF 2 Prairie View RDF Located at JAAP (approx. 40 miles southwest of Chicago), 223 acres on 455 Acre Parcel Will County Owner; Waste Management, Operator ...

  18. Research Plan: Foam Delivery of Remedial Amendments to Deep Vadose Zone for Metals and Radionuclides Remediation

    SciTech Connect (OSTI)

    Zhong, Lirong; Hart, Andrea T.; Szecsody, James E.; Zhang, Z. F.; Freedman, Vicky L.; Ankeny, Mark; Hull, Laurence; Oostrom, Martinus; Freshley, Mark D.; Wellman, Dawn M.

    2009-01-16T23:59:59.000Z

    Research proposals were submitted to the Scientific and Technical Basis for In Situ Treatment of Metals and Radionuclides Technical Working Group under the US Department of Energy (DOE) Environmental Management Office (specifically, EM-22). After a peer review and selection process, the proposal, Foam Delivery of Remedial Amendments to Deep Vadose Zone for Metals and Radionuclides Remediation, submitted by Pacific Northwest National Laboratory (PNNL) was selected for support by the program. A research plan was requested for this EM funded project. The overall objective of this project is to develop foam delivery technology for the distribution of remedial amendments to deep vadose zone sediments for in situ immobilization of metal and radionuclide contaminants. The focus of this research in FY 2009 is on the physical aspects of the foam delivery approach. Specific objectives are to 1) study the foam quality (i.e. the gas volume fraction in foam) influence on injection pressure, 2) study the sediment air permeability influence on injection pressure, 3) investigate liquid uptake in sediment and determine whether a water front will be formed during foam delivery, 4) test amendment distance (and mass) delivery by foam from the injection point, 5) study the enhanced sweeping over heterogeneous systems (i.e., low K zones) by foam delivery relative to water-based delivery under vadose zone conditions, and 6) numerically simulate foam delivery processes in the vadose zone. Laboratory scale experiments will be conducted at PNNL to study a range of basic physical aspects of the foam propagation in sediments, including foam quality and sediment permeability influence on injection pressure, liquid uptake, and foam sweeping across heterogeneous systems. This study will be augmented with separate studies to be conducted at MSE Technology Applications, Inc. (MSE) to evaluate foam transport and amendment delivery at the intermediate-scale. The results of intermediate-scale tests will be used to bridge the gap between the small-scale foam transport studies and the field-scale demonstration. Numerical simulation studies on foam delivery under vadose conditions will be performed to simulate observed foam transport behavior under vadose zone conditions and predict the foam delivery performance at field-scale.

  19. September 2013 Most Viewed Documents for Power Generation And...

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    Gas Turbine Exhaust Diffuser Norris, Thomas R. (2009) 23 > Dynamic performance and control of a static var generator using cascade multilevel inverters Peng, Fang Zheng...

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    Methods for Power Distribution Systems: Final Report Tom McDermott (2010) 67 Frequency Control Concerns in the North American Electric Power System Kirby, B.J. (2003) 64 A...

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  8. Office of Document Reviews

    Broader source: Energy.gov [DOE]

    The Office of Document Reviews ensures that all documents prepared at DOE Headquarters are properly marked to identify the level and category of protected information they contain (if any) and to ensure that all documents the Department prepares or is required to review under applicable statutes for public release contain no information requiring protection under law, regulations and Executive orders.

  9. CO/sub 2/ foam flooding performance vs. rock wettability

    SciTech Connect (OSTI)

    Lescure, B.M.; Claridge, E.L.

    1986-01-01T23:59:59.000Z

    CO/sub 2/ flooding projects have shown large potential for oil recovery, but in many cases the volumetric sweep efficiency is greatly limited by gravity tonguing and/or viscous fingering. To reduce these effects foam could be used as an alternative to WAG CO/sub 2/ injection. Experiments on the CO/sub 2/ foam process were conducted in a 1/4 5-spot reservoir model in order to investigate the effect of rock wetting state and total CO/sub 2/ slug size on secondary and tertiary extra-oil recovery. Laboratory model results show that the process is more successful in an oil-wet medium than in a water-wet medium due to larger surfactant adsorption in the water-wet medium. Also, requirements for optimal CO/sub 2/ slug size are smaller than in the WAG process, with larger extra oil recovery for both secondary and tertiary floods.

  10. Calibrating the Abaqus Crushable Foam Material Model using UNM Data

    SciTech Connect (OSTI)

    Schembri, Philip E. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Lewis, Matthew W. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-02-27T23:59:59.000Z

    Triaxial test data from the University of New Mexico and uniaxial test data from W-14 is used to calibrate the Abaqus crushable foam material model to represent the syntactic foam comprised of APO-BMI matrix and carbon microballoons used in the W76. The material model is an elasto-plasticity model in which the yield strength depends on pressure. Both the elastic properties and the yield stress are estimated by fitting a line to the elastic region of each test response. The model parameters are fit to the data (in a non-rigorous way) to provide both a conservative and not-conservative material model. The model is verified to perform as intended by comparing the values of pressure and shear stress at yield, as well as the shear and volumetric stress-strain response, to the test data.

  11. Effects of quantum space time foam in the neutrino sector

    E-Print Network [OSTI]

    H. V. Klapdor-Kleingrothaus; H. Ps; U. Sarkar

    2000-07-05T23:59:59.000Z

    We discuss violations of CPT and quantum mechanics due to interactions of neutrinos with space-time quantum foam. Neutrinoless double beta decay and oscillations of neutrinos from astrophysical sources (supernovae, active galactic nuclei) are analysed. It is found that the propagation distance is the crucial quantity entering any bounds on EHNS parameters. Thus, while the bounds from neutrinoless double beta decay are not significant, the data of the supernova 1987a imply a bound being several orders of magnitude more stringent than the ones known from the literature. Even more stringent limits may be obtained from the investigation of neutrino oscillations from active galactic nuclei sources, which have an impressive potential for the search of quantum foam interactions in the neutrino sector.

  12. Equipment compatibility and logistics assessment for containment foam deployment.

    SciTech Connect (OSTI)

    McRoberts, Vincent M.; Martell, Mary-Alena; Jones, Joseph A.

    2005-09-01T23:59:59.000Z

    The deployment of the Joint Technical Operations Team (JTOT) is evolving toward a lean and mobile response team. As a result, opportunities to support more rapid mobilization are being investigated. This study investigates three specific opportunities including: (1) the potential of using standard firefighting equipment to support deployment of the aqueous foam concentrate (AFC-380); (2) determining the feasibility and needs for regional staging of equipment to reduce the inventory currently mobilized during a JTOT response; and (3) determining the feasibility and needs for development of the next generation AFC-380 to reduce the volume of foam concentrate required for a response. This study supports the need to ensure that requirements for alternative deployment schemes are understood and in place to support improved response activities.

  13. Production of High Quality Dust Control Foam to Minimize Moisture Addition to Coal

    E-Print Network [OSTI]

    Termine, F.; Jordan, S. T.

    PRODUCTION OF HIGH QUALITY DUST CONTROL FOAM TO MINIMIZE MOISTURE ADDITION TO COAL Frank Tenni ne Steve T. Jordan BETZ Laboratories, Trevose, PA Inc. ABSTRACT Foam is displacing wet suppression as the method of choice for controlling... fugitive emissions from coal. Coal treated by wet suppression consumes through moisture addition, a heat energy equivalent of 1 ton out of every 500 tons fired. The application of foam requires less than 10% of the moisture usually required for wet...

  14. INDENTATION RESISTANCE OF AN ALUMINIUM FOAM O.B. Olurin, N.A. Fleck

    E-Print Network [OSTI]

    Fleck, Norman A.

    , of relative density 815% were tested. Alporas is a closed cell aluminium alloy foam, consisting of 0.42 wt completed: the cell walls contain the oxides CaO and CaAl2O4. It is a cast aluminium alloy foam and detailsINDENTATION RESISTANCE OF AN ALUMINIUM FOAM O.B. Olurin, N.A. Fleck and M.F. Ashby Cambridge

  15. Comments on Cahill's Quantum Foam Inflow Theory of Gravity

    E-Print Network [OSTI]

    T. D. Martin

    2004-07-20T23:59:59.000Z

    We reveal an underlying flaw in Reginald T. Cahill's recently promoted quantum foam inflow theory of gravity. It appears to arise from a confusion of the idea of the Galilean invariance of the acceleration of an individual flow with what is obtained as an acceleration when a homogeneous flow is superposed with an inhomogeneous flow. We also point out that the General Relativistic covering theory he creates by substituting a generalized Painleve-Gullstrand metric into Einstein's field equations leads to absurd results.

  16. Pitch-based carbon foam heat sink with phase change material

    DOE Patents [OSTI]

    Klett, James W. (Knoxville, TN); Burchell, Timothy D. (Oak Ridge, TN)

    2002-01-01T23:59:59.000Z

    A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.

  17. Pitch-based carbon foam heat sink with phase change material

    DOE Patents [OSTI]

    Klett, James W. (Knoxville, TN); Burchell, Timothy D. (Oak Ridge, TN)

    2000-01-01T23:59:59.000Z

    A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.

  18. Synthesis of Mesocellular Silica Foams with Tunable Window and Cell Dimensions

    E-Print Network [OSTI]

    Yang, Peidong

    Polystyrene microspheres coated with cationic surfactants are easily prepared by micro- emulsion templates. These silica foams resemble dense aerogels. Introduction Because of their greatly enhanced pore

  19. Pitch-based carbon foam heat sink with phase change material

    DOE Patents [OSTI]

    Klett, James W.; Burchell, Timothy D.

    2007-01-02T23:59:59.000Z

    A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.

  20. Pitch-based carbon foam heat sink with phase change material

    DOE Patents [OSTI]

    Klett, James W.; Burchell, Timothy D.

    2007-01-23T23:59:59.000Z

    A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.

  1. Pitch-based carbon foam heat sink with phase change material

    DOE Patents [OSTI]

    Klett, James W.; Burchell, Timothy D.

    2004-08-24T23:59:59.000Z

    A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.

  2. Pitch-based carbon foam heat sink with phase change material

    DOE Patents [OSTI]

    Klett, James W.; Burchell, Timothy D.

    2006-03-21T23:59:59.000Z

    A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.

  3. Area 2: Use Of Engineered Nanoparticle-Stabilized CO 2 Foams...

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

    nanoparticle's surface, nanoparticle concentration, salinity, presence of surfactant, CO2:water ratio, and fluid flow rate are each discussed. This work on NP-CW foam...

  4. The use of coated micropowders to reduce radiation heat transfer in foam insulation

    E-Print Network [OSTI]

    Marge, Arlene Lanciani

    1991-01-01T23:59:59.000Z

    Polyurethane foam is the most effective insulation currently available for buildings. Chlorofluorocarbon (CFC) blowing agents, which have low thermal conductivities, contribute highly to the effectiveness of this insulation. ...

  5. Explosively driven low-density foams and powders

    DOE Patents [OSTI]

    Viecelli, James A. (Orinda, CA); Wood, Lowell L. (Simi Valley, CA); Ishikawa, Muriel Y. (Livermore, CA); Nuckolls, John H. (Danville, CA); Pagoria, Phillip F. (Livermore, CA)

    2010-05-04T23:59:59.000Z

    Hollow RX-08HD cylindrical charges were loaded with boron and PTFE, in the form of low-bulk density powders or powders dispersed in a rigid foam matrix. Each charge was initiated by a Comp B booster at one end, producing a detonation wave propagating down the length of the cylinder, crushing the foam or bulk powder and collapsing the void spaces. The PdV work done in crushing the material heated it to high temperatures, expelling it in a high velocity fluid jet. In the case of boron particles supported in foam, framing camera photos, temperature measurements, and aluminum witness plates suggest that the boron was completely vaporized by the crush wave and that the boron vapor turbulently mixed with and burned in the surrounding air. In the case of PTFE powder, X-ray photoelectron spectroscopy of residues recovered from fragments of a granite target slab suggest that heating was sufficient to dissociate the PTFE to carbon vapor and molecular fluorine which reacted with the quartz and aluminum silicates in the granite to form aluminum oxide and mineral fluoride compounds.

  6. Final Report: Use of Graphite Foam as a Thermal Performance Enhancement of Heavy Hybrid Propulsion Systems

    SciTech Connect (OSTI)

    Klett, James William [ORNL; Conklin, Jim [ORNL

    2011-06-01T23:59:59.000Z

    Oak Ridge National Laboratory's graphite foam has the potential to be used as a heat exchanger for the Army's Future Combat System Manned Ground Vehicle and thus has the potential to improve its thermal performance. The computational fluid dynamics (CFD) program FLOW3D was used to develop a new CFD model for the graphite foam to be used in the development of a proper heat exchanger. The program was calibrated by first measuring the properties of the solid foams and determining the parameters to be used in the CFD model. Then the model was used to predict within 5% error the performance of finned foam heat sinks. In addition, the f factors and j factors commonly used to predict pressure drop and heat transfer were calculated for both the solid and finned structures. There was some evidence that corrugating the foams would yield higher j/f ratios than state of the art heat exchangers, confirming previously measured data. Because the results show that the CFD model was validated, it is recommended that the funding for Phases 2 through 5 be approved for the design of both the finned heat exchanger using tubes and round fin structures and the solid foam design using corrugated foams. It was found that the new CFD model using FLOW3D can predict both solid foam heat transfer and finned foam heat transfer with the validated model parameters. In addition, it was found that the finned foam structures exhibited j/f ratios that indicate that significant heat transfer is occurring within the fin structures due to aerodynamically induced flow, which is not present in solid aluminum fin structures. It is possible that the foam surfaces can act as turbulators that increase heat transfer without affecting pressure drop, like the vortex generators seen in state of the art heat exchangers. These numbers indicate that the foam can be engineered into an excellent heat exchanger. It was also found that corrugating the solid foams would increase the j/f ratio dramatically, allowing the solid foams to compete directly with standard heat exchangers. Although corrugated L1 foam samples have not been produced (attempts are under way), it is possible that their j/f ratio can be even higher than those of the finned structures.

  7. Effects of surfactants on the microstructure of porous ceramic scaffolds fabricated by foaming for bone tissue engineering

    SciTech Connect (OSTI)

    Wang Xi, E-mail: nano-sun@hotmail.com [College of Chemistry and Chemical Engineering, Central South University, Lushan Road South, Changsha, Hunan 410083 (China); Ruan Jianming [State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083 (China); Chen Qiyuan [College of Chemistry and Chemical Engineering, Central South University, Lushan Road South, Changsha, Hunan 410083 (China)

    2009-06-03T23:59:59.000Z

    A porous scaffold comprising a {beta}-tricalcium phosphate matrix and bioactive glass powders was fabricated by foaming method and the effects of surfactants as foaming agent on microstructure of scaffolds were investigated. Foaming capacity and foam stability of different surfactants in water firstly were carried out to evaluate their foam properties. The porous structure and pore size distribution of the scaffolds were systematically characterized by scanning electron microscopy (SEM) and an optical microscopy connected to an image analyzer. The results showed that the foam stability of surfactant has more remarkable influence on their microstructure such as pore shape, size and interconnectivity than the foaming ability of one. Porous scaffolds fabricated using nonionic surfactant Tween 80 with large foam stability exhibited higher open and total porosities, and fully interconnected porous structure with a pore size of 750-850 {mu}m.

  8. Foaming of E-Glass II (Report for G Plus Project for PPG)

    SciTech Connect (OSTI)

    Kim, Dong-Sang; Portch, Matthew P.; Matyas, Josef; Hrma, Pavel R.; Pilon, Laurent

    2005-09-23T23:59:59.000Z

    In a previous study, the effect of the furnace atmosphere on E glass foaming was investigated with the specific goal to understand the impact of increased water content on foaming in oxy-fired furnaces. The present study extended the previous study and focused on the effect of glass batch chemical composition on E-glass foaming. The present study also included reruns of foam tests performed in a previous study, which resulted in the same trend: the foaming extent increased nearly linearly with the heating rate and no foam was produced when CO2 + 55% H2O atmosphere was introduced at 300C. It was shown that the lack of foaming in the test with CO2 + 55% H2O atmosphere introduced at 300C was caused by a loss of sulfate at T <1250C because of higher water content at the early stages of melting. The tests with new batches in the present study showed that replacing quicklime with limestone tend to decrease foaming, possibly caused by increased sulfate loss during early stages of melting in the batch with limestone. The batches where Na2SO4 was replaced with NaNO3, NaNO3 + CeO2, or CeO2, produced only very limited foaming regardless of the replacing components. As expected, the foaming extent increased as the sulfate content in the batch increased. The results of the present study suggest that foaming can be reduced by using limestone over quicklime and by decreasing the sulfate addition to a minimum required for refining.

  9. Appendix 3 Document Scanning Guidelines Appendix 3 Document Scanning Guidelines

    E-Print Network [OSTI]

    Tsien, Roger Y.

    Appendix 3 Document Scanning Guidelines App.3-1 Appendix 3 Document Scanning Guidelines 1. Turn. Note: Whenever possible, it is best to convert a Word document into a PDF than to scan a document and convert it to a PDF. A Word document that has been converted is searchable; a scanned document is not. 2

  10. Control of the specific growth rate of Bacillus subtilis for the production of biosurfactant lipopeptides in bioreactors with foam

    E-Print Network [OSTI]

    Boyer, Edmond

    lipopeptides in bioreactors with foam overflow S. CHENIKHERa , J. S. GUEZb , F. COUTTE b , M. PEKPEa , P

  11. Rigid polyurethane foams in refrigeration. (Latest citations from the Rubber and Plastics Research Association database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-03-01T23:59:59.000Z

    The bibliography contains citations concerning the use of rigid polyurethane as thermal insulation in refrigerators. Production machinery, foam systems such as one-shot prepolymer systems, and properties of rigid polyurethane foams used in refrigerators are among the topics discussed. Curing methods, in-place foaming, and bun foaming are also included. (Contains a minimum of 70 citations and includes a subject term index and title list.)

  12. Polyurethane/polyisocyanurate foam thermal insulation. (Latest citations from the Rubber and Plastics Research Association database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-06-01T23:59:59.000Z

    The bibliography contains citations concerning the use of polyisocyanurate/polyurethane foam for thermal insulation building materials. The topics discussed include flammability and smoke generation characteristics, building frame sheathing materials, fiber reinforcement, laminated insulation foam boards, substitution for controversial formaldehyde foams and aging characteristics. Performance evaluations of existing buildings with installed foam insulation are included. (Contains a minimum of 187 citations and includes a subject term index and title list.)

  13. UNCLASSIFIHED DEFENSE DOCUMENTATION CENTER

    E-Print Network [OSTI]

    Block, Marco

    UNCLASSIFIHED AD 463473 DEFENSE DOCUMENTATION CENTER FOR SCIENTIFIC AND TECHNICAL INFORMATION .... John Barton Head OR Analysis Group R. H. Krolick Manager Applied Science Laboratory Prepared for the .J

  14. Geothermal: Hot Documents Search

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

    Hot Documents Search Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About Publications Advanced Search New Hot Docs News Related Links...

  15. RMOTC - Library - Environmental Documents

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

    Environmental Documents The U.S. Department of Energy National Environmental Policy Act (NEPA) requires careful consideration of the potential environmental consequences of all...

  16. Hazard Baseline Documentation

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

    1995-12-04T23:59:59.000Z

    This standard establishes uniform Office of Environmental Management (EM) guidance on hazard baseline documents that identify and control radiological and non-radiological hazards for all EM facilities.

  17. Polystyrene foams for thermal insulation. (Latest citations from the Rubber and Plastics Research Asociation database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-07-01T23:59:59.000Z

    The bibliography contains citations concerning the use of polystyrene foam as a thermal insulator. References discuss applications in railroad tracks, masonry walls, foundations for shallow buildings, and commercial roofing. Use as a vibration medium is referenced. Topics include designing with foam and self-extinguishing foams. (Contains a minimum of 77 citations and includes a subject term index and title list.)

  18. Use of Disinfectants and Cleaners to Reduce Bacteria on Poultry Transportation Coops with a Compressed Air Foam System

    E-Print Network [OSTI]

    Hinojosa-Garza, Carolee A.

    2013-05-24T23:59:59.000Z

    and disinfect poultry transport coops. The objective of this study was to evaluate treatments consisting of a low-pressure water rinse (LPWR), a foaming additive alone, foaming cleaner or peroxyacetic acid with a foaming additive to reduce bacteria on broiler...

  19. TOUGHNESS OF ALUMINIUM ALLOY FOAMS K. Y. G. McCULLOUGH, N. A. FLECK and M. F. ASHBY{

    E-Print Network [OSTI]

    Fleck, Norman A.

    TOUGHNESS OF ALUMINIUM ALLOY FOAMS K. Y. G. McCULLOUGH, N. A. FLECK and M. F. ASHBY{ Cambridge Science Ltd. All rights reserved. Keywords: Foams; Aluminium alloys; Fracture toughness; Crack growth 1 of metallic foams made from aluminium alloys, with attractive properties for energy management [5, 6], thermal

  20. Impact Strength of High Relative Density Solid State CO, Blown CPET Microcellular Foams Impact Strength of High Relative Density

    E-Print Network [OSTI]

    Kumar, Vipin

    is an increased glass transition temperature (T,), thus requiring higher foaming temperatures. Baldwin and SuhImpact Strength of High Relative Density Solid State CO, Blown CPET Microcellular Foams ImpactTerephthalate) Microcellular Foams Vipin KurnaW, Richard P Juntunena, and Chris Barlowb University of Washington, Seattle

  1. Yield drag in a two-dimensional foam flow around a circular obstacle: Effect of liquid fraction

    E-Print Network [OSTI]

    Cox, Simon

    Yield drag in a two-dimensional foam flow around a circular obstacle: Effect of liquid fraction of foams around a circular obstacle within a long channel. In experiments, we confine the foam between liquid and glass surfaces. In simulations, we use a deterministic software, the Surface Evolver

  2. Modeling of a Foamed Emulsion Bioreactor: I. Model Development and Experimental Validation

    E-Print Network [OSTI]

    ARTICLE Modeling of a Foamed Emulsion Bioreactor: I. Model Development and Experimental Validation, a new type of bioreactor for air pollution control referred to as the foamed emulsion bior- eactor (FEBR Introduction Biofilters and biotrickling filters are the most widely used bioreactors for treating low levels

  3. Effect of Gas Diffusion on Mobility of Foam for Enhanced Oil Recovery Lars E. Nonnekes1

    E-Print Network [OSTI]

    Cox, Simon

    Effect of Gas Diffusion on Mobility of Foam for Enhanced Oil Recovery Lars E. Nonnekes1 Foam can improve the sweep efficiency of gas injected into oil reservoirs for enhanced oil recovery University William Richard Rossen Email: W.R.Rossen@tudelft.nl Abstract Transport of gas across

  4. Polystyrene foam products equation of state as a function of porosity and fill gas

    SciTech Connect (OSTI)

    Mulford, Roberta N [Los Alamos National Laboratory; Swift, Damian C [LLNL

    2009-01-01T23:59:59.000Z

    An accurate EOS for polystyrene foam is necessary for analysis of numerous experiments in shock compression, inertial confinement fusion, and astrophysics. Plastic to gas ratios vary between various samples of foam, according to the density and cell-size of the foam. A matrix of compositions has been investigated, allowing prediction of foam response as a function of the plastic-to-air ratio. The EOS code CHEETAH allows participation of the air in the decomposition reaction of the foam. Differences between air-filled, Ar-blown, and CO{sub 2}-blown foams are investigated, to estimate the importance of allowing air to react with products of polystyrene decomposition. O{sub 2}-blown foams are included in some comparisons, to amplify any consequences of reaction with oxygen in air. He-blown foams are included in some comparisons, to provide an extremum of density. Product pressures are slightly higher for oxygen-containing fill gases than for non-oxygen-containing fill gases. Examination of product species indicates that CO{sub 2} decomposes at high temperatures.

  5. Multiple Percolation in a Carbon-Filled Polymer Composites via Foaming

    E-Print Network [OSTI]

    Thompson, Michael

    . However, there are few publi- cations reporting on the electrical conductivity of foam polymer composites6Multiple Percolation in a Carbon-Filled Polymer Composites via Foaming M. R. Thompson,1 G. H conductivity for a car- bon-filled cyclic olefin copolymer (COC) composite incorpo- rating both chopped carbon

  6. Deformation rate effects on failure modes of open-cell Al foams and textile cellular materials

    E-Print Network [OSTI]

    Barthelat, Francois

    September 2005 Abstract The compressive behavior of open-cell aluminum alloy foam and stainless steel woven: Metallic cellular materials; Dynamic compression; Aluminum foams; Woven textile lattice 0020-7683/$ - see are of attracting interest for a variety of automotive, locomotive, marine, and aerospace applications (Gibson

  7. Foaming of E-Glass (Report for G Plus Project for PPG)

    SciTech Connect (OSTI)

    Kim, Dong-Sang; Hrma, Pavel R.; Pilon, Laurent; Dutton, Bryan C.

    2004-04-19T23:59:59.000Z

    The behavior of foams generated in the crucible melts was investigated to study the effect of furnace atmosphere on E-glass foaming, specifically focused on its water content to understand the effect of oxy-firing. A quartz-crucible furnace equipped with video recording was used to observe the behavior and to evaluate stability of foams generated from the PPG E-glass under various atmospheres. The present study preliminarily concluded that the higher foaming in oxy-fired furnace compared to air-fired is caused by the effect of water on early sulfate decomposition, promoting more efficient refining gas generation from sulfate (known as ''dilution effect''), not by the effect of humidity on foam lamella stability. A plausible explanation for the difference between soda-lime glass and E-glass in the end result of the dilution effect on glass refining and foaming is presented. A preliminary experiment on the effect of heating rate also suggests that thermal history of glass melting can be a major factor in the rate of E-glass foaming. Approaches to develop the methods to reduce foaming in oxy-fired furnace are recommended.

  8. Fracture enhanced in-situ foam remediation. Topical report, July 1995-December 1996

    SciTech Connect (OSTI)

    Chowdiah, P.; Misra, B.R.; Conrad, J.R.; Srivastava, V.J.

    1997-06-01T23:59:59.000Z

    The objective of this project was to determine the technical feasibility of soil fracturing as an enhancement to transportation of foam and foam-assisted site remediation. This project is part of an overall effort by the Gas Research Institute (GRI) to develop technologies for cost-effective, in-situ remediation of soils.

  9. Thermal Transport in Porous Media with Application to Fuel Cell Diffusion Media and Metal Foams

    E-Print Network [OSTI]

    Victoria, University of

    Thermal Transport in Porous Media with Application to Fuel Cell Diffusion Media and Metal Foams to Fuel Cell Diffusion Media and Metal Foams by Ehsan Sadeghi B.Sc., Sharif University of Technology, Iran make them excellent candidates for a variety of thermofluid applications including fuel cells, compact

  10. Thermal degradation of new and aged urethane foam and epon 826 epoxy.

    SciTech Connect (OSTI)

    Kruizenga, Alan Michael; Mills, Bernice E.

    2013-08-01T23:59:59.000Z

    Thermal desorption spectroscopy was used to monitor the decomposition as a function of temperature for the foam and epoxy as a function of temperature in the range of 60C to 170C. Samples were studied with one day holds at each of the studied temperatures. Both new (FoamN and EpoxyN) and aged (FoamP and EpoxyP) samples were studied. During these ~10 day experiments, the foam samples lost 11 to 13% of their weight and the EpoxyN lost 10% of its weight. The amount of weight lost was difficult to quantify for EpoxyP because of its inert filler. The onset of the appearance of organic degradation products from FoamP began at 110C. Similar products did not appear until 120C for FoamN, suggesting some effect of the previous decades of storage for FoamP. In the case of the epoxies, the corresponding temperatures were 120C for EpoxyP and 110C for EpoxyN. Suggestions for why the aged epoxy seems more stable than newer sample include the possibility of incomplete curing or differences in composition. Recommendation to limit use temperature to 90-100C for both epoxy and foam.

  11. JOURNAL OF MATERIALS SCIENCE 34 (1999) 637 644 Cell nucleation in solid-state polymeric foams

    E-Print Network [OSTI]

    Kumar, Vipin

    JOURNAL OF MATERIALS SCIENCE 34 (1999) 637­ 644 Cell nucleation in solid-state polymeric foams-mail: holl@u.washington.edu The mechanism for nucleation phenomenon in solid-state microcellular foams. The nucleation phenomenon is thermally activated at the effective glass transition temperature of the gas

  12. Spray Foam Exterior Insulation with Stand-Off Furring

    SciTech Connect (OSTI)

    Herk, A.; Baker, R.; Prahl, D.

    2014-03-01T23:59:59.000Z

    IBACOS, in collaboration with GreenHomes America, was contracted by the New York State Energy Research and Development Authority to research exterior wall insulation solutions. This research investigated cost-effective deep energy retrofit (DER) solutions for improving the building shell exterior while achieving a cost-reduction goal, including reduced labor costs to reach a 50/50 split between material and labor. The strategies included exterior wall insulation plus energy upgrades as needed in the attic, mechanical and ventilation systems, and basement band joist, walls, and floors. The work can be integrated with other home improvements such as siding or window replacement. This strategy minimizes physical connections to existing wall studs, encapsulates existing siding materials (including lead paint) with spray foam, and creates a vented rain screen assembly to promote drying. GreenHomes America applied construction details created by IBACOS to a test home. 2x4 framing members were attached to the wall at band joists and top plates using 'L' clips, with spray foam insulating the wall after framing was installed. Windows were installed simultaneously with the framing, including extension jambs. The use of clips in specific areas provided the best strength potential, and 'picture framing' the spray foam held the 2x4s in place. Short-term testing was performed at this house, with monitoring equipment installed for long-term testing. Testing measurements will be provided in a later report, as well as utility impact (before and after), costs (labor and materials), construction time, standard specifications, and analysis for the exterior wall insulation strategy.

  13. Environmental Policy Document Ref

    E-Print Network [OSTI]

    Aickelin, Uwe

    Document Environmental Policy Document Ref EMS.POL.001 Last Revision March 2013 Revision No 5 Page 1 of 1 Environmental Policy Through teaching and research the University of the West of England should be managed so as to minimise environmental harm. This policy commits the University of the West

  14. IMPRESS CONNECT DOCUMENT ORDERING

    E-Print Network [OSTI]

    Asaithambi, Asai

    IMPRESS CONNECT DOCUMENT ORDERING USER GUIDE FOR UNF August 2010 #12;OFFICEMAX IMPRESS CONNECT USERMax (case sensitive) Click on "Create New Custom Print Order" under Print & Document Services #12;The first landing page. You will see 3 options across the top of the landing page: Order Jobs, Track Jobs, Manage

  15. IDC System Specification Document.

    SciTech Connect (OSTI)

    Clifford, David J.

    2014-12-01T23:59:59.000Z

    This document contains the system specifications derived to satisfy the system requirements found in the IDC System Requirements Document for the IDC Reengineering Phase 2 project. Revisions Version Date Author/Team Revision Description Authorized by V1.0 12/2014 IDC Reengineering Project Team Initial delivery M. Harris

  16. Presidential Documents Federal Register

    E-Print Network [OSTI]

    Presidential Documents 67249 Federal Register Vol. 65, No. 218 Thursday, November 9, 2000 Title 3 principles set forth in section 2, agencies shall adhere, to the extent permitted by law, to the following #12;67250 Federal Register / Vol. 65, No. 218 / Thursday, November 9, 2000 / Presidential Documents (a

  17. Corrosion-resistant Foamed Cements for Carbon Steels

    SciTech Connect (OSTI)

    Sugama T.; Gill, S.; Pyatina, T., Muraca, A.; Keese, R.; Khan, A.; Bour, D.

    2012-12-01T23:59:59.000Z

    The cementitious material consisting of Secar #80, Class F fly ash, and sodium silicate designed as an alternative thermal-shock resistant cement for the Enhanced Geothermal System (EGS) wells was treated with cocamidopropyl dimethylamine oxide-based compound as foaming agent (FA) to prepare numerous air bubble-dispersed low density cement slurries of and #61603;1.3 g/cm3. Then, the foamed slurry was modified with acrylic emulsion (AE) as corrosion inhibitor. We detailed the positive effects of the acrylic polymer (AP) in this emulsion on the five different properties of the foamed cement: 1) The hydrothermal stability of the AP in 200 and #61616;C-autoclaved cements; 2) the hydrolysis-hydration reactions of the slurry at 85 and #61616;C; 3) the composition of crystalline phases assembled and the microstructure developed in autoclaved cements; 4) the mechanical behaviors of the autoclaved cements; and, 5) the corrosion mitigation of carbon steel (CS) by the polymer. For the first property, the hydrothermal-catalyzed acid-base interactions between the AP and cement resulted in Ca-or Na-complexed carboxylate derivatives, which led to the improvement of thermal stability of the AP. This interaction also stimulated the cement hydration reactions, enhancing the total heat evolved during cements curing. Addition of AP did not alter any of the crystalline phase compositions responsible for the strength of the cement. Furthermore, the AP-modified cement developed the porous microstructure with numerous defect-free cavities of disconnected voids. These effects together contributed to the improvement of compressive-strength and toughness of the cured cement. AP modification of the cement also offered an improved protection of CS against brine-caused corrosion. There were three major factors governing the corrosion protection: 1) Reducing the extents of infiltration and transportation of corrosive electrolytes through the cement layer deposited on the underlying CS surfaces; 2) inhibiting the cathodic reactions at the corrosion site of CS; 3) extending the coverage of cement over CS surfaces; and, 4) improving the adherence of the cement to CS surfaces. Thus, the CSs corrosion rate of 176 milli inch/per year (mpy) for 1 wt% FA-foamed cement without AP was considerably reduced to 69 mpy by adding only 2 wt% AP. Addition of AP at 10 wt% further reduced this rate to less than 10 mpy.

  18. Improvement of the Lost Foam Casting Process | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet),EnergyImprovement of the Lost Foam Casting Process Improvement of

  19. Materials Science and Engineering A, 2006. 417(1-2): p. 249-258 249 Investigation of Flexural Strength Properties of Rubber and Nanoclay Reinforced Hybrid Syntactic Foams

    E-Print Network [OSTI]

    Gupta, Nikhil

    Strength Properties of Rubber and Nanoclay Reinforced Hybrid Syntactic Foams Rahul Maharsia* , Nikhil Gupta are developed by using rubber and nanoclay particles to modify the matrix microstructure in syntactic foams to fabricate the foam samples. In the rubber hybrid foams, 40 and 75 m size rubber particles are used by 2

  20. Rigid polyurethane foams in refrigeration. January 1973-July 1989 (Citations from the Rubber and Plastics Research Association data base). Report for January 1973-July 1989

    SciTech Connect (OSTI)

    Not Available

    1989-08-01T23:59:59.000Z

    This bibliography contains citations concerning the use of rigid polyurethane as thermal insulation in refrigerators. Production machinery, foam systems such as one-shot prepolymer systems, and properties of rigid polyurethane foams used in refrigerators are among the topics discussed. Curing methods, in-place foaming, and bun foaming are also included. (Contains 74 citations fully indexed and including a title list.)

  1. Applied Composite Materials, 2005. 12(3-4): p. 247-261 247 Enhancement of Energy Absorption in Syntactic Foams by Nanoclay Incorporation for Sandwich

    E-Print Network [OSTI]

    Gupta, Nikhil

    70803 ABSTRACT Syntactic foams are closed pore foams fabricated by the mechanical mixing of hollow glass in Syntactic Foams by Nanoclay Incorporation for Sandwich Core Applications Nikhil Gupta1 and Rahul Maharsia2 foams due to the incorporation of nano-sized clay (nanoclay) particles. A surface modified clay, Nanomer

  2. Content-Based Document Image Retrieval in Complex Document Collections

    E-Print Network [OSTI]

    Content-Based Document Image Retrieval in Complex Document Collections G. Agama, S. Argamona, O address the problem of content-based image retrieval in the context of complex document images. Complex document are documents that typically start out on paper and are then electronically scanned. These docu

  3. View of software for HEP experiments

    SciTech Connect (OSTI)

    Johnstad, H.; Lebrun, P.; Lessner, E.S.; Montgomery, H.E.

    1986-05-01T23:59:59.000Z

    A view of the software structure typical of a High Energy Physics experiment is given and the availability of general software modules in most of the important regions is discussed. The aim is to provide a framework for discussion of capabilities and inadequecies and thereby define areas where effort should be assigned and perhaps also to serve as a useful source document for the newcomer to High Energy Physics. 74 refs.

  4. Method and apparatus for producing a carbon based foam article having a desired thermal-conductivity gradient

    DOE Patents [OSTI]

    Klett, James W. (Knoxville, TN) [Knoxville, TN; Cameron, Christopher Stan (Sanford, NC) [Sanford, NC

    2010-03-02T23:59:59.000Z

    A carbon based foam article is made by heating the surface of a carbon foam block to a temperature above its graphitizing temperature, which is the temperature sufficient to graphitize the carbon foam. In one embodiment, the surface is heated with infrared pulses until heat is transferred from the surface into the core of the foam article such that the graphitizing temperature penetrates into the core to a desired depth below the surface. The graphitizing temperature is maintained for a time sufficient to substantially entirely graphitize the portion of the foam article from the surface to the desired depth below the surface. Thus, the foam article is an integral monolithic material that has a desired conductivity gradient with a relatively high thermal conductivity in the portion of the core that was graphitized and a relatively low thermal conductivity in the remaining portion of the foam article.

  5. Document | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,Office of Policy,Policy ActDetroit7471 Federal RegisterDocument DocumentDocument

  6. Document | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,Office of Policy,Policy ActDetroit7471 Federal RegisterDocumentDocument Document

  7. Document | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO OverviewAttachments461-93Do-It-Yourself ProjectsDocument Document Extracted PagesDocument

  8. UESC Enabling Documents

    Broader source: Energy.gov [DOE]

    Presentationgiven at the Spring 2009 Federal Utility Partnership Working Group (FUPWG) meetingdiscusses the enabling documents to help federal contract officers establish utility energy service contracts (UESCs).

  9. TUchem Documentation Introduction

    E-Print Network [OSTI]

    Wolfgang, Paul

    TUchem Documentation Introduction TUchem is an automated chemical inventory database system design, such as inventory import, report generation, location management, and a user-friendly look-and-feel. The motivation

  10. Presidential Documents Federal Register

    E-Print Network [OSTI]

    Presidential Documents 67249 Federal Register Vol. 65, No. 218 Thursday, November 9, 2000 Title 3 principles set forth in section 2, agencies shall adhere, to the extent permitted by law, to the following

  11. Document Type: Subject Terms

    E-Print Network [OSTI]

    Major, Arkady

    Title: Authors: Source: Document Type: Subject Terms: Abstract: Full Text Word Count: ISSN at creating team results. In fact, it's priceless. Managers in Western corporations have received a lifetime

  12. Foam composition for treating asbestos-containing materials and method of using same

    DOE Patents [OSTI]

    Block, J.; Krupkin, N.V.; Kuespert, D.R.; Nishioka, G.M.; Lau, J.W.K.; Palmer, N.I.

    1998-04-28T23:59:59.000Z

    A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed. The composition comprises water, at least about 30% by weight of an acid component, at least about 0.1% by weight of a source of fluoride ions, and a stable foam forming amount of a foaming agent system having both cationic and non-ionic functionality. A method of transforming the asbestos-containing material into a non-asbestos material using the present composition in the form of a foam also disclosed.

  13. Heat transfer in sound propagation and attenuation through gas-liquid polyhedral foams

    E-Print Network [OSTI]

    Yuri M. Shtemler; Isaac R. Shreiber

    2007-05-20T23:59:59.000Z

    A cell method is developed, which takes into account the bubble geometry of polyhedral foams, and provides for the generalized Rayleigh-Plesset equation that contains the non-local in time term corresponding to heat relaxation. The Rayleigh-Plesset equation together with the equations of mass and momentum balances for an effective single-phase inviscid fluid yield a model for foam acoustics. The present calculations reconcile observed sound velocity and attenuation with those predicted using the assumption that thermal dissipation is the dominant damping mechanism in a range of foam expansions and sound excitation frequencies.

  14. World Views From fragmentation

    E-Print Network [OSTI]

    .......................................................11 2. The Seven Components of a World View...................................................... 20 3. The Unity of the Seven Sub........................................... 25 5. The Purpose of the group `Worldviews

  15. Michigan Questionnaire Documentation System (MQDS)

    E-Print Network [OSTI]

    Cheung, Gina-Qian

    2013-04-03T23:59:59.000Z

    The Michigan Questionnaire Documentation System (MQDS) is a powerful tool used to help create questionnaire documentation, with or without summary statistics, and other documentation based on the Blaise data model for a study. MQDS works by: 1...

  16. PORTAL Aggregation Analysis and Documentation

    E-Print Network [OSTI]

    Bertini, Robert L.

    PORTAL Aggregation Analysis and Documentation Kristin A. Tufte Portland State University Introduction This document describes the aggregation procedures for PORTAL . Analysis of different aggregation system. Details on the status values and their descriptions can be found in the SWARM documentation

  17. Documentation Requirements for Sensory Impairments

    E-Print Network [OSTI]

    Documentation Requirements for Sensory Impairments Vision and Hearing Students, faculty, staff documentation requirements: 1. Requirements of the PRACTITIONER: A) Ophthalmologists and optometrists of interest. C) Documentation must be typed, dated and signed by the evaluator and submitted to ODR

  18. Published November, 1997 1997 Documentation

    E-Print Network [OSTI]

    Goldman, Steven A.

    Published November, 1997 1997 Documentation Guidelines for Evaluation and Management Services;2 1997 DOCUMENTATION GUIDELINES FOR EVALUATION AND MANAGEMENT SERVICES I. INTRODUCTION WHAT...............................................................................................................................2 What Is Documentation and Why Is it Important

  19. Energy-Saving Melting and Revert Reduction Technology (E-SMARRT): Lost Foam Thin Wall - Feasibility of Producing Lost Foam Castings in Aluminum and Magnesium Based Alloys

    SciTech Connect (OSTI)

    Fasoyinu, Yemi [CanmetMATERIALS] [CanmetMATERIALS; Griffin, John A. [University of Alabama - Birmingham] [University of Alabama - Birmingham

    2014-03-31T23:59:59.000Z

    With the increased emphasis on vehicle weight reduction, production of near-net shape components by lost foam casting will make significant inroad into the next-generation of engineering component designs. The lost foam casting process is a cost effective method for producing complex castings using an expandable polystyrene pattern and un-bonded sand. The use of un-bonded molding media in the lost foam process will impose less constraint on the solidifying casting, making hot tearing less prevalent. This is especially true in Al-Mg and Al-Cu alloy systems that are prone to hot tearing when poured in rigid molds partially due to their long freezing range. Some of the unique advantages of using the lost foam casting process are closer dimensional tolerance, higher casting yield, and the elimination of sand cores and binders. Most of the aluminum alloys poured using the lost foam process are based on the Al-Si system. Very limited research work has been performed with Al-Mg and Al-Cu type alloys. With the increased emphasis on vehicle weight reduction, and given the high-strength-to-weight-ratio of magnesium, significant weight savings can be achieved by casting thin-wall (? 3 mm) engineering components from both aluminum- and magnesium-base alloys.

  20. Document Imaging | Department of Energy

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

    Imaging Converting Paper Documents into Electronic Files Converting paper documents into electronic files helps us manage, store, access and archive the organizational information...

  1. Important Trinity / NERSC-8 Documents

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

    RFP Important Trinity NERSC-8 Documents Important Trinity NERSC-8 Documents Trinity NERSC-8 Use Case Scenarios for Burst Buffer and Power Management PDF Facility Limits...

  2. DOCUMENTATION SPECIFIC TASK TRAINING PROGRAM

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    DOCUMENTATION APPENDIX SPECIFIC TASK TRAINING PROGRAM Conducted by the ILLINOIS CENTER ............................................................. Coordination of Contract Documents Art.105.05 Appendix Page 14

  3. NEWS & VIEWS Glass dynamics

    E-Print Network [OSTI]

    Weeks, Eric R.

    NEWS & VIEWS Glass dynamics Diverging views on glass transition Gregory B. mc.mckenna@ttu.edu T he glass transition is one of the most intriguing phenomena in the world of soft condensed matter. Despite decades of study, many aspects of the behaviour of glass-forming liquids remain elusive

  4. Method for forming a uniformly dense polymer foam body

    DOE Patents [OSTI]

    Whinnery, Jr., Leroy (Danville, CA)

    2002-01-01T23:59:59.000Z

    A method for providing a uniformly dense polymer foam body having a density between about 0.013 .sup.g /.sub.cm.sup..sub.3 to about 0.5 .sup.g /.sub.cm.sup..sub.3 is disclosed. The method utilizes a thermally expandable polymer microballoon material wherein some of the microballoons are unexpanded and some are only partially expanded. It is shown that by mixing the two types of materials in appropriate ratios to achieve the desired bulk final density, filling a mold with this mixture so as to displace all or essentially all of the internal volume of the mold, heating the mold for a predetermined interval at a temperature above about 130.degree. C., and then cooling the mold to a temperature below 80.degree. C. the molded part achieves a bulk density which varies by less then about .+-.6% everywhere throughout the part volume.

  5. Developing & tailoring multi-functional carbon foams for multi-field response

    E-Print Network [OSTI]

    Sarzynski, Melanie Diane

    2009-05-15T23:59:59.000Z

    anisotropy and coatings to provide comprehensive information to guide processing researchers in their pursuit of tailorable performance. Several illustrations are undertaken at multiple scales to explore the response of multi-functional carbon foams under...

  6. Application of Genetic Algorithms and Thermogravimetry to Determine the Kinetics of Polyurethane Foam in Smoldering Combustion

    E-Print Network [OSTI]

    Rein, Guillermo; Lautenberger, Chris; Fernandez-Pello, Carlos; Torero, Jose L; Urban, David

    In this work, the kinetic parameters governing the thermal and oxidative degradation of flexible polyurethane foam are determined using thermogravimetric data and a genetic algorithm. These kinetic parameters are needed ...

  7. Developing & tailoring multi-functional carbon foams for multi-field response

    E-Print Network [OSTI]

    Sarzynski, Melanie Diane

    2009-05-15T23:59:59.000Z

    anisotropy and coatings to provide comprehensive information to guide processing researchers in their pursuit of tailorable performance. Several illustrations are undertaken at multiple scales to explore the response of multi-functional carbon foams under...

  8. Stimulation results in the low-permeability Wasatch formation - An evolution to foam fracturing

    SciTech Connect (OSTI)

    Harris, P.C.; Bailey, D.E.; Evertz, G.L.

    1984-05-01T23:59:59.000Z

    The Wasatch Formation of the Uinta Basin in eastern Utah is typical of many formations in the Rocky Mountains, having low permeability and high sensitivity to water. Stimulation treatments with several types of fracturing fluids, including oilwater emulsion fluids, complex gel fluids and foam fluids, have been generally successful. Production decline curves from twenty four wells in the field were used for comparison of the different stimulation methods. Although foam fracturing has been used for the shortest period of time, comparison of the production histories show the relatively higher efficiency of the foam fracturing treatments compared to other stimulation methods in the Wasatch formation. Foam fluids gave higher production rates and higher flowing pressures than offset wells fractured with complex gel fluids. A stimulation model for oil and gas production was used to match the production history from this reservoir. The model allowed a projection of gas production based on early production from the wells and knowledge of the reservoir.

  9. Effect of microstructure of closed cell foam on strength and effective stiffness

    E-Print Network [OSTI]

    Sue, Ji Woong

    2007-04-25T23:59:59.000Z

    structure of the foam. A low- boiling, inert liquid fluorocarbon is mixed in with the polyol. When the polymerization reaction takes place, the exotherm is sufficient to cause the fluorocarbon to volatilize and act as blowing agent. It should also...

  10. Microsoft Word - NETL-TRS-2-2013_Foamed Cement_20140124.docx

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

    Foamed Cement 1 ABSTRACT NETL researchers have produced the first high-resolution X-ray computed tomography (CT) three-dimensional (3-D) images of atmospheric-generated...

  11. Laboratory and field evaluation of polyurethane foam for lost circulation control

    SciTech Connect (OSTI)

    Glowka, D.A.; Loeppke, G.E.; Rand, P.B.; Wright, E.K. (Sandia National Labs., Albuquerque, NM (USA))

    1989-01-01T23:59:59.000Z

    A two-part polyurethane foam has been tested in the laboratory and in the field to assess its utility in controlling lost circulation encountered when drilling geothermal wells. A field test was conducted in The Geysers in January, 1988, to evaluate the chemical formulation and downhole tool used to deploy the chemicals. Although the tool apparently functioned properly in the field test, the chemicals failed to expand sufficiently downhole, instead forming a dense polymer that may be ineffective in sealing loss zones. Subsequent laboratory tests conducted under simulated downhole conditions indicate that the foam chemical undergo sever mixing with water in the wellbore, which disturbs the kinetics of the chemical reaction more than was previously contemplated. The results indicate that without significant changes in the foam chemical formulation or delivery technique, the foam system will be ineffective in lost circulation control except under very favorable conditions. 4 refs., 6 figs., 2 tabs.

  12. Cellular Foams: A Potential Innovative Solid Breeder Material for Fusion Applications

    SciTech Connect (OSTI)

    Sharafat, S.; Ghoniem, N.; Williams, B.; Babcock, J. [University of California Los Angeles (United States)

    2005-05-15T23:59:59.000Z

    Ceramic foam and cellular materials are being used in a wide variety of industries and are finding ever growing number of applications. Over the past decade advances in manufacturing of cellular materials have resulted in ceramics with highly uniform interconnected porosities ranging in size from a few {mu}m to several mm. These relatively new ceramic foam materials have a unique set of thermo-mechanical properties, such as excellent thermal shock resistance and high surface to volume ratios. Based on new advances in processing ceramic foams, we suggest the development of ceramic foams or cellular ceramics for solid breeders in fusion reactor blankets. A cellular breeder material has a number of thermo-mechanical advantages over pebble beds, which can enhance blanket performance, improve operational stability, and reduce overall blanket costs.

  13. Foaming of E-Glass (Report for G Plus Project for PPG)

    E-Print Network [OSTI]

    Pilon, Laurent

    PNNL-14625 Foaming of E-Glass (Report for G Plus Project for PPG) D. Kim P.. Hrma Pacific Northwest for PPG) Dong-Sang Kim Pavel R. Hrma Pacific Northwest National Laboratory Bryan C. Dutton Laurent Pilon

  14. Foaming of E-Glass II (Report for G Plus Project for PPG)

    E-Print Network [OSTI]

    Pilon, Laurent

    P. R. Hrma Pacific Northwest National Laboratory L. Pilon University of California, Los Angeles Foaming of E-Glass II (Report for G Plus Project for PPG) D.-S. Kim M. Portch J. Matyas P. R. Hrma Pacific

  15. Method of forming a continuous polymeric skin on a cellular foam material

    DOE Patents [OSTI]

    Duchane, David V. (Los Alamos, NM); Barthell, Barry L. (Los Alamos, NM)

    1985-01-01T23:59:59.000Z

    Hydrophobic cellular material is coated with a thin hydrophilic polymer skin which stretches tightly over the outer surface of the foam but which does not fill the cells of the foam, thus resulting in a polymer-coated foam structure having a smoothness which was not possible in the prior art. In particular, when the hydrophobic cellular material is a specially chosen hydrophobic polymer foam and is formed into arbitrarily chosen shapes prior to the coating with hydrophilic polymer, inertial confinement fusion (ICF) targets of arbitrary shapes can be produced by subsequently coating the shapes with metal or with any other suitable material. New articles of manufacture are produced, including improved ICF targets, improved integrated circuits, and improved solar reflectors and solar collectors. In the coating method, the cell size of the hydrophobic cellular material, the viscosity of the polymer solution used to coat, and the surface tensin of the polymer solution used to coat are all very important to the coating.

  16. Novel application of foam for in-situ soil remediation. Topical report, April 1992-September 1993

    SciTech Connect (OSTI)

    Kilbane, J.J.; Liu, B.Y.; Conrad, J.R.; Srivastava, V.J.

    1997-08-01T23:59:59.000Z

    The objective of the task is to evaluate the use of foams to deliver surfactants, bacteria, solvents, and/or nutrients to promote in-situ bioremediation of soils contaminated with polynuclear aromatic hydrocarbons (PAHs) or to evaluate the use of foams to render contaminants available for physical collection and subsequent degradation. This task consists of two subtasks: (1) Literature Survey of Related Technologies and (2) Preliminary Experimental Investigations of Interfacial Phenomenon and the Use of Foams to Remediate Contaminated Sites. An extensive literature review was completed in which abstracts of more than one hundred technical articles were prepared. Laboratory studies to investigate the use of foams to remediate PAH-contaminated soil were performed with several Manufactured Gas Plant (MGP) soils as well as with model experimental systems.

  17. SHERPA Document SHERPA Document -Institutional Repositories: Staff and Skills Requirements

    E-Print Network [OSTI]

    Southampton, University of

    SHERPA Document SHERPA Document - Institutional Repositories: Staff and Skills Requirements Mary This document began in response to requests received by the core SHERPA team for examples of job descriptions and UKCORR members. This document will be revised annually (July/August) to reflect changing needs

  18. Madonne: Document Image Analysis Techniques for Cultural Heritage Documents

    E-Print Network [OSTI]

    Boyer, Edmond

    Madonne: Document Image Analysis Techniques for Cultural Heritage Documents Jean-Marc Ogier and Karl Tombre Abstract. This paper presents the Madonne project, a French initiative to use document image anal- ysis techniques for the purpose of preserving and exploiting heritage documents. 1

  19. Software documentation, Page 1, Printed 7/11/01 Documentation

    E-Print Network [OSTI]

    Sommerville, Ian

    Software documentation, Page 1, Printed 7/11/01 Software Documentation Ian Sommerville Lancaster University, UK #12;Software documentation, Page 2, Printed 7/11/01 Introduction All large software development projects, irrespective of application, generate a large amount of associated documentation

  20. SOFA 2 Documentation Table of contents

    E-Print Network [OSTI]

    SOFA 2 Documentation Table of contents 1 Overview...................................................................................................................... 2 2 Documentation............................................................................................................. 2 3 Other documentation and howtos

  1. Technology Innovation Program Guidelines and Documentation

    E-Print Network [OSTI]

    Magee, Joseph W.

    #12;Technology Innovation Program Guidelines and Documentation Requirements for Research Involving ............................................................................ 5 F. Required Documentation.............................................................................. 16 D. Required Documentation

  2. Hazard baseline documentation

    SciTech Connect (OSTI)

    Not Available

    1994-08-01T23:59:59.000Z

    This DOE limited technical standard establishes uniform Office of Environmental Management (EM) guidance on hazards baseline documents that identify and control radiological and nonradiological hazards for all EM facilities. It provides a road map to the safety and health hazard identification and control requirements contained in the Department`s orders and provides EM guidance on the applicability and integration of these requirements. This includes a definition of four classes of facilities (nuclear, non-nuclear, radiological, and other industrial); the thresholds for facility hazard classification; and applicable safety and health hazard identification, controls, and documentation. The standard applies to the classification, development, review, and approval of hazard identification and control documentation for EM facilities.

  3. FOAM FORMATION IN THE SALTSTONE PRODUCTION FACILITY: EVALUATION OF SOURCES AND MITIGATION

    SciTech Connect (OSTI)

    Cozzi, A.

    2011-01-18T23:59:59.000Z

    The Saltstone Production Facility receives waste from Tank 50H for treatment. Influents into Tank 50H include the Effluent Treatment Project waste concentrate, H-Canyon low activity waste and General Purpose Evaporator bottoms, Modular Caustic Side Solvent Extraction Unit decontaminated salt solution, and salt solution from the Deliquification, Dissolution and Adjust campaign. Using the Waste Characterization System (WCS), this study tracks the relative amounts of each influent into Tank 50H, as well as the total content of Tank 50H, in an attempt to identify the source of foaming observed in the Saltstone Production Facility hopper. Saltstone has been using antifoam as part of routine processing with the restart of the facility in December 2006. It was determined that the maximum admix usage in the Saltstone Production Facility, both antifoam and set retarder, corresponded with the maximum concentration of H-Canyon low activity waste in Tank 50H. This paper also evaluates archived salt solutions from Waste Acceptance Criteria analysis for propensity to foam and the antifoam dosage required to mitigate foaming. It was determined that Effluent Treatment Project contributed to the expansion factor (foam formation) and General Purpose Evaporator contributed to foaminess (persistence). It was also determined that undissolved solids contribute to foam persistence. It was shown that additions of Dow Corning Q2-1383a antifoam reduced both the expansion factor and foaminess of salt solutions. The evaluation of foaming in the grout hopper during the transition from water to salt solution indicated that higher water-to-premix ratios tended to produce increased foaming. It was also shown that additions of Dow Corning Q2-1383a antifoam reduced foam formation and persistence.

  4. Method and composition for molding low density desiccant syntactic foam articles

    DOE Patents [OSTI]

    Lula, James W. (Bonner Springs, KS); Schicker, James R. (Lee's Summit, MO)

    1984-01-01T23:59:59.000Z

    A method and a composition are provided for molding low density desiccant syntactic foam articles. A low density molded desiccant article may be made as a syntactic foam by blending a thermosetting resin, microspheres and molecular sieve desiccant powder, molding and curing. Such articles have densities of 0.2-0.9 g/cc, moisture capacities of 1-12% by weight, and can serve as light weight structural supports.

  5. Preparation of nanoporous metal foam from high nitrogen transition metal complexes

    DOE Patents [OSTI]

    Tappan, Bryce C.; Huynh, My Hang V.; Hiskey, Michael A.; Son, Steven F.; Oschwald, David M.; Chavez, David E.; Naud, Darren L.

    2006-11-28T23:59:59.000Z

    Nanoporous metal foams are prepared by ignition of high nitrogen transition metal complexes. The ammonium salts of iron(III) tris[bi(tetrazolato)-amine], cobalt(III) tris(bi(tetrazolato)amine), and high nitrogen compounds of copper and silver were prepared as loose powders, pressed into pellets and wafers, and ignited under an inert atmosphere to form nanoporous metal foam monoliths having very high surface area and very low density.

  6. Advanced geothermal foam drilling systems (AFS) -- Phase 1 final report, Part 1

    SciTech Connect (OSTI)

    W. C. Maurer

    1999-06-30T23:59:59.000Z

    An advanced coiled-tubing foam drilling system is being developed where two concentric strings of coiled tubing are used to convey water and air to the hole bottom where they are mixed together to produce foam for underbalanced drilling. This system has the potential to significantly reduce drilling costs by increasing drilling rates (due to the motor being powered by water), and reducing compressor and nitrogen costs (due to lower gas pressures and volumes).

  7. Sandia Energy - SCADA Documents

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol Home Distribution GridDocuments Home Stationary PowerResearchRiskRotorDocuments

  8. Document | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,Office of Policy,Policy ActDetroit7471 Federal Register /Document Document

  9. Document | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,Office of Policy,Policy ActDetroit7471 Federal Register /DocumentDocument

  10. Document | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,Office of Policy,Policy ActDetroit7471 Federal Register /DocumentDocumentOHA

  11. Document | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,Office of Policy,Policy ActDetroit7471 Federal RegisterDocument Document

  12. Document Control Program | The Ames Laboratory

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

    Training, Documents, & Records Document Control Program The Document Control (DC) Plan ensures that only approved, current versions of such documents are used in the workplace or...

  13. In-situ aging of roof systems containing polyisocyanurate roof insulation foamed with alternative blowing agents

    SciTech Connect (OSTI)

    Desjarlais, A.O.; Christian, J.E.; Graves, R.S.

    1993-10-01T23:59:59.000Z

    Experimental polyisocyanurate (PIR) foam roof insulations with permeable facers were installed in roofing systems and continuously monitored for thermal performance for four years. The foams were produced using a specific formulation that represented current technology in 1989 and were blown with CFC-11, HCFC-123, and HCFC-141b. These foams were installed in roof systems comprised of loosely-laid insulation boards covered by either a loosely-laid single ply white or black membrane. The in-situ testing was carried out on an outdoor test facility, the Roof Thermal Research Apparatus (RTRA). Additional specimens of these foams were aged in the laboratory and periodically evaluated using laboratory measurement equipment. This paper summarizes the in-situ data compiled to date, compares these data with the laboratory results, and examines whether the proposed laboratory procedure for accelerating the aging of foams by the slicing and scaling method accurately predicts the aging characteristics of these materials installed in roof systems. These experiments are part of a joint industry/government project established to evaluate the technical viability of alternative HCFC blowing agents for rigid closed-cell polyisocyanurate foam roof insulations. Members of the project are the US Department of Energy (DOE)/Oak Ridge National Laboratory (ORNL), the US Environmental Protection Agency (EPA), the Society of the Plastics Industry-Polyurethane Division (SPI), the Polyisocyanurate Insulation Manufacturers Association (PIMA), and the National Roofing Contractors Association (NRCA).

  14. Cellular morphology of organic-inorganic hybrid foams based on alkali alumino-silicate matrix

    SciTech Connect (OSTI)

    Verdolotti, Letizia; Capasso, Ilaria; Lavorgna, Marino [Institute of Composite and Biomedical Materials, National Research Council, Naples (Italy); Liguori, Barbara; Caputo, Domenico [Department of Chemical, Materials and Industrial Engineering, University of Naples Federico II, Naples (Italy); Iannace, Salvatore [Institute of Composite and Biomedical Materials, National Research Council, Naples, Italy and IMAST SCRAL, Piazza Bovio 22 Napoli 80133 (Italy)

    2014-05-15T23:59:59.000Z

    Organic-inorganic hybrid foams based on an alkali alumino-silicate matrix were prepared by using different foaming methods. Initially, the synthesis of an inorganic matrix by using aluminosilicate particles, activated through a sodium silicate solution, was performed at room temperature. Subsequently the viscous paste was foamed by using three different methods. In the first method, gaseous hydrogen produced by the oxidization of Si powder in an alkaline media, was used as blowing agent to generate gas bubbles in the paste. In the second method, the porous structure was generated by mixing the paste with a meringue type of foam previously prepared by whipping, under vigorous stirring, a water solution containing vegetal proteins as surfactants. In the third method, a combination of these two methods was employed. The foamed systems were consolidated for 24 hours at 40C and then characterized by FTIR, X-Ray diffraction, scanning electron microscopy (SEM) and compression tests. Low density foams (?500 Kg/m{sup 3}) with good cellular structure and mechanical properties were obtained by combining the meringue approach with the use of the chemical blowing agent based on Si.

  15. DOCUMENT MAPS FOR COMPETENCE MANAGEMENT

    E-Print Network [OSTI]

    Honkela, Timo

    DOCUMENT MAPS FOR COMPETENCE MANAGEMENT Timo Honkela Helsinki University of Technology Neural area of the document maps, i.e., competence management. The document map approach has approved The WEBSOM is a method for analyzing and visualizing large document col- lections. In the WEBSOM method

  16. CAPITAL ASSET DOCUMENT TRAINING

    E-Print Network [OSTI]

    KUALI CAPITAL ASSET MANAGEMENT DOCUMENT TRAINING Business and Financial Services, Property Management Presented by: Rachel Drenth #12;Sign On to the Training Site CSU CAP (Campus Administration://padroni.is.colostate.edu:7778/portal/page/portal/CAPQA (THEN CHOOSE QUAL 2) Non-production Applications: Training Kuali

  17. Virtual Gateway Network Documentation

    E-Print Network [OSTI]

    Segall, Adrian

    Virtual Gateway Network Documentation Composed By: Stiven Andre Nikolai Gukov #12;Table of contents.3) VGNET as a network manager 2) VGNET explained 2.1) One PC with multiple Internet access points. 2 both routers. 1.3) VGNET as a network manager Let's look at figure 3 again. The perfect scenario we may

  18. ENERGY REVIEW Consultation Document

    E-Print Network [OSTI]

    ENERGY REVIEW Consultation Document JANUARY 2006 Our Energy Challenge Securing clean, affordable energy for the long-term #12;Our Energy Challenge Securing clean, affordable energy for the long term #12;OUR ENERGY CHALLENGE SECURING CLEAN, AFFORDABLE ENERGY FOR THE LONG TERM ii Why is the government

  19. Computer-aided documentation

    SciTech Connect (OSTI)

    Rosenberg, S.

    1982-01-01T23:59:59.000Z

    Current standards for high-quality documentation of complex computer systems include many criteria, based on the application and user levels. Important points common to many systems are: targeting to specific user groups; being complete, concise, and structured; containing both tutorials and reference material; being field-tested; and being timely in appearance relative to the software delivery. To achieve these goals, uniform quality standards should be more vigorously applied, the documentation development cycle should be shortened, more documentation/software help should be available on line, and more user interaction should be solicited. For future computer systems, the proposal is made that the documentation be machine comprehensible. This should be phased in, with the immediate goal being to facilitate user querying for information, and with an ultimate goal of providing a database for programmer apprentice artificial-intelligence programs that assist software development. This new functionality will be the result of several trends, including the drastically reduced cost of read-only online random-access storage via video optical disks, the ongoing successes of artificial-intelligence programs when applied to limited application areas, and the ever increasing cost of software programmers. 3 references.

  20. Presidential Documents Federal Register

    E-Print Network [OSTI]

    Presidential Documents 3821 Federal Register Vol. 76, No. 14 Friday, January 21, 2011 Title 3, 1993. As stated in that Executive Order and to the extent permitted by law, each agency must, among, such as user fees or marketable permits, or providing information upon which choices can be made by the public