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


1

Highly Insulating Glazing Systems using Non-Structural Center Glazing Layers  

E-Print Network [OSTI]

has been funded under a DOE-NETL grant. - Vacuum glazingsin the U.S. through a DOE-NETL grant. Vacuum glazing is now

Arasteh, Dariush

2008-01-01T23:59:59.000Z

2

Vacuum Glazing; A Thermally Insulating Window Technology  

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

Vacuum Glazing; A Thermally Insulating Window Technology Vacuum Glazing; A Thermally Insulating Window Technology Speaker(s): Cenk Kocer Date: May 31, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Sunnie Lim The vacuum glazing consists of two panes of glass separated by a sub-millimetre vacuum gap. Under the action of atmospheric pressure the separation of the panes is maintained by an array of high strength spacers in the gap. The glass panes are hermetically sealed at the edge using a low melting point glass frit (solder glass). Since 1913 many have worked on a practical implementation of such a flat insulating glass structure, with success finally being reported in 1989 by Collins et al. at the University of Sydney. The purpose of this talk is to present a brief history of the vacuum glazing research at the University of Sydney, and outline in detail

3

Flexible edge seal for vacuum insulating glazing units  

SciTech Connect (OSTI)

A flexible edge seal is provided for a vacuum insulating glazing unit having a first glass pane and a second glass pane spaced-apart from the first. The edge seal comprises a seal member formed of a hermetically bondable material and having a first end, a second end and a center section disposed therebetween. The first end is hermetically bondable to a first glass pane. The second end is hermetically bondable to a second glass pane. The center section comprises a plurality of convolutes.

Bettger, Kenneth J.; Stark, David H.

2012-12-11T23:59:59.000Z

4

Highly Insulating Window Technology  

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

Window Technology Window Technology Temperature differentials across a window, particularly with cold exterior environments in residential buildings, can lead to significant energy losses. Currently available low-emissivity coatings, gas-fills, and insulating frames provide significant energy savings over typical single or double glazed products. The EWC website provides information on how double glazed low-e gas-filled windows work as well as information on commercially available superwindows (three layer, multiple low-e coatings, high performance gas-fills). The next generation of highly insulating window systems will benefit from incremental improvements being made to current components (i.e. more insulating spacers and frame materials/designs, low-e coatings with improved performance properties). LBNL uses its experimental facilities and software tools to collaborate with window and glass industry representatives to better understand the impacts of new components on overall product performance.

5

Fabricate-on-Demand Vacuum Insulating Glazings | Department of...  

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

glazing units (IGUs) 25 years ago. Over 125 PPG-licensed Intercept Spacer System lines are in operation in the US. Currently in use in more than 600 million residential...

6

Energy Performance and Comfort Level in High Rise and Highly Glazed Office Buildings  

E-Print Network [OSTI]

Thermal and visual comfort in buildings play a significant role on occupants' performance but on the other hand achieving energy savings and high comfort levels can be a quite difficult task especially in high rise buildings with highly glazed...

Bayraktar, M.; Perino, M.; Yilmaz, A. Z.

2010-01-01T23:59:59.000Z

7

Filament-strung stand-off elements for maintaining pane separation in vacuum insulating glazing units  

DOE Patents [OSTI]

A vacuum insulating glazing unit (VIGU) comprises first and second panes of transparent material, first and second anchors, a plurality of filaments, a plurality of stand-off elements, and seals. The first and second panes of transparent material have edges and inner and outer faces, are disposed with their inner faces substantially opposing one another, and are separated by a gap having a predetermined height. The first and second anchors are disposed at opposite edges of one pane of the VIGU. Each filament is attached at one end to the first anchor and at the other end to the second anchor, and the filaments are collectively disposed between the panes substantially parallel to one another. The stand-off elements are affixed to each filament at predetermined positions along the filament, and have a height substantially equal to the predetermined height of the gap such that the each stand-off element touches the inner surfaces of both panes. The seals are disposed about the edges of the panes, enclosing the stand-off elements within a volume between the panes from which the atmosphere may be evacuated to form a partial vacuum.

Bettger, Kenneth J; Stark, David H

2013-08-20T23:59:59.000Z

8

Thermal Performance Impacts of Center-of-Glass Deflections in Installed Insulating Glazing Units  

E-Print Network [OSTI]

6] M. Bernier, Effects of Glass Plate Curvature on the U-Selkowitz, Research Needs: Glass Solar Reflectance and VinylAnalysis of Insulating Glass Units, Journal of Structural

Hart, Robert

2014-01-01T23:59:59.000Z

9

Acoustic behavior of triple glazings  

Science Journals Connector (OSTI)

Making of triple glazings is the only way to still improve thermal performances of Insulating Glass Units. Possible ways with double glazings are already in use: increase the space between glasses use low emissivity coatings and special gas with lower thermal conductivity as argon or krypton. Specific acoustic weak point of double glazings is the resonance between the two panes which works as a mass spring mass system and coupling of eigenmodes of panes through the air (gas) cavity. These phenomena are of course still more important with triple glazings as there are two resonances. The paper will give all comparative data concerning thermal and acoustic performances and describe a way to achieve the same single number values of sound transmission loss with triple glazing that with double glazing by adding absorption in the gas cavities.

Marc Rehfeld; David Fournier

2008-01-01T23:59:59.000Z

10

Highly Insulating Windows - Cost  

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

Cost Cost The following is an estimate of the cost effective incremental cost of highly-insulating windows (U-factor=0.20 Btu/hr-ft2-F) compared to regular ENERGY STAR windows (U-factor 0.35 Btu/hr-ft2-F). Energy savings from lower U-factors were simulated with RESFEN over an assumed useful window life of 25 years. To determine the maximum incremental cost at which highly-insulating windows would still be cost-effective, we used a formula used by many utility companies to calculate the cost of saved energy from energy efficiency programs, based on the programs' cost and savings. We turned this formula around so that the cost of saved energy equals the present energy prices in the studied locations, whereas the program cost (the incremental cost of the windows) is the dependent variable. By entering 5%

11

Highly Insulating Windows - Fram  

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

Frames Frames Research performed at the Norwegian University of Science and Technology and LBNL has identified various highly insulating frame solutions. A report was released in 2007 describing some of these frames. This document reports the findings of a market and research review related to state-of-the-art highly insulating window frames. The market review focuses on window frames that satisfy the Passivhaus requirements (window U-value less or equal to 0.8 W/m2K ), while other examples are also given in order to show the variety of materials and solutions that may be used for constructing window frames with a low thermal transmittance (U-value). The market search shows that several combinations of materials are used in order to obtain window frames with a low U-value. The most common insulating material seems to be Polyurethane (PUR), which is used together with most of the common structural materials such as wood, aluminum, and PVC.

12

Highly Insulating Windows - Publ  

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

Highly Insulating Windows - Publications Future Advanced Windows for Zero-Energy Homes, J. Apte, D. Arasteh, J. Huang, 2003 ASHRAE Annual Meeting, 2002 Nine representative window products are examined in eight representative U.S. climates. Annual energy and peak demand impacts are investigated. We conclude that a new generation of window products is necessary for zero-energy homes if windows are not to be an energy drain on these homes. Performance Criteria for Residential Zero Energy Windows, D. Arasteh, H. Goudey, J. Huang, C. Kohler, R. Mitchell, 2006, submitted to ASHRAE Through the use of whole house energy modeling, typical efficient products are evaluated in five US climates and compared against the requirements for ZEHs. Products which meet these needs are defined as a function of climate.

13

Limitations of High-Voltage Insulation  

Science Journals Connector (OSTI)

... materials such as impregnated paper. The important electrical properties of the materials used for the insulation of high-voltage circuits are conductivity and electric strength. The conductivity measures the ability ... a million times between themselves, but they are all classified as available for high-voltage insulation.

1938-01-08T23:59:59.000Z

14

Performance criteria for center layer of triple glazing  

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

Performance criteria for center layer of triple glazing Performance criteria for center layer of triple glazing Traditional highly insulating windows are made of three pieces of glass. Alternatively, the center layer can be a thin layer of coated plastic. (See Figure 1). In both cases, the center layer is sealed between two spacers, creating two completely separate spaces, and extending through the edge of the insulating glass unit. Recent research has shown that a simple "convection" barrier, as shown in Figure 2, which does not extend through the edge of the insulating glass unit, is as effective an insulator as traditional designs. Advantages include a simpler and more reliable edge design and potentially reduced manufacturing costs. We have investigated various plastics and edge constraint designs and are now focused on the use of an acrylic layer, between 1mm and 3mm thick. Bent edges will help keep the layer in place (see Figure 3a,b,c). In order to commercialize such a product, several issues remain to be addressed. These issues, as they relate to acrylic, are defined below. Other plastics and designs can still be explored.

15

Experimental performance evaluation of aerogel glazing systems  

Science Journals Connector (OSTI)

Energy savings for heating, air conditioning and illuminating plants could be improved by innovative Transparent Insulation Materials (TIMs), which aim to optimize two opposite requirements: transparency and thermal insulation. Aerogel is one of the most promising materials for use in highly energy-efficient windows: in addition to the low thermal conductivity (down to 0.010 W/(m K) in evacuated conditions), a high solar energy and daylight transmittance is achieved. Eight samples were manufactured, by assembling several types of glass with monolithic and granular aerogel in the interspace. U-values slightly higher than 1 W/m2 K were obtained for all the samples. The monolithic aerogel introduced a better light transmittance (?v = 0.60) than granular one (?v = 0.27), while U-values were comparable in non-evacuated conditions. With respect to a conventional window (double glazing with a low-e layer), 55% reduction in heat losses was achieved by monolithic aerogel, with only a 25% reduction in light transmittance; for the granular systems, the reduction was about 25% in heat losses, but 66% in light transmission. In order to evaluate the aerogel employing in buildings, a prototype of an aluminum frame window with granular aerogel in interspace was realized. Thermal and acoustic properties of the prototype were evaluated according to the standards. The thermal transmittance of the innovative glazing system was little lower than 1 W/(m2 K) and it showed also good acoustic properties: the Rw index was 3 dB higher than the one of a conventional window with air in interspace.

C. Buratti; E. Moretti

2012-01-01T23:59:59.000Z

16

On Electrical Insulation in High Vacua  

Science Journals Connector (OSTI)

1 January 1878 research-article On Electrical Insulation in High Vacua William Crookes The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Proceedings of the Royal Society of London. www.jstor.org

1878-01-01T23:59:59.000Z

17

Noise Absorbing High-Temperature Insulation  

Science Journals Connector (OSTI)

Until recently simple heat shields on the engine, in the engine space or on the subframe of a vehicle had given protection against radiant heat from hot components. Today, complex high-temperature insulation syst...

Peter Cappellucci

2013-07-01T23:59:59.000Z

18

Laser Glazing of Railroad Rails [Laser Applications Laboratory] - Nuclear  

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

Laser Glazing of Railroad Laser Glazing of Railroad Rails Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory Laser Glazing of Railroad Rails Project description: Laser glazing of rails. Category: Project with industrial partner (American Association of Railroads) Bookmark and Share

19

Detailed thermal performance data on conventional and highly insulating window systems  

SciTech Connect (OSTI)

Data on window heat-transfer properties (U-value and shading coefficient (SC)) are usually presented only for a few window designs at specific environmental conditions. With the introduction of many new window glazing configurations (using low-emissivity coatings and gas fills) and the interest in their annual energy performance, it is important to understand the effects of window design parameters and environmental conditions on U and SC. This paper discusses the effects of outdoor temperature, wind speed, insolation, surface emittance, and gap width on the thermal performance of both conventional and highly insulating windows. Some of these data have been incorporated into the fenestration chapter of the ''ASHRAE Handbook - 1985 Fundamentals.'' The heat-transfer properties of multiglazed insulating window designs are also presented. These window systems include those having (1) one or more low-emittance coatings; (2) low-conductivity gas-fill or evacuated cavities; (3) a layer of transparent silica aerogel, a highly insulating microporous material; or (4) combinations of the above. Using the detailed building energy analysis program, DOE 2.1B, we show that these systems, which all maintain high solar transmittance, can add more useful thermal energy to a space than they lose, even in a northern climate. Thus, in terms of seasonal energy flows, these fenestration systems out-perform insulated walls or roofs.

Arasteh, D.; Selkowitz, S.; Hartmann, J.

1986-01-01T23:59:59.000Z

20

Issue 5: Optimizing High Levels of Insulation  

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

Issue 5: Optimizing High Levels of Insulation NREL, Ren Anderson Building America Technical Update Meeting July 25 th , 2012 Issue 5 - How Much Insulation is Too Much? How do we define the cost-effective limit for improvements in enclosure efficiency? Key Factors to Consider: -Cost of savings vs. cost of grid-supplied energy -Cost of efficiency savings vs. cost of savings from renewable generation. -Savings from envelope improvements vs. other efficiency options Context * It is widely believed that code-specified insulation levels also represent cost-effective limits. * However, the cost-effective insulation levels exceed IECC values in many climates. * The homeowner-driven value of modest increases in enclosure performance can create economies of scale that will reduce

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


21

Performance of High-Performance Glazing in IECC Compliant Building Simulation Model  

E-Print Network [OSTI]

windows with evacuated or low-conductance gas-filled gaps (Carmody et al. 2004), and aerogel windows to reduce the heat loss (V-factor) of windows (Hartman et al. 1987). Technologies to reduce solar heat gain include improvements to existing low.../12-04, [CDROM]. College Station, TX: Energy Systems Laboratory, Texas A&M University. Hartman, J., M.Rubin, and D. Arasteh. 1987. Thermal and solar-optical properties of silica aerogel for use in insulated windows. Proceedings of the 12th - 138 ? ESL-PA-06...

Mukhopadhyay, J.; Haberl, J. S.

22

Method and apparatus for filling thermal insulating systems  

DOE Patents [OSTI]

A method for filling insulated glazing units is disclosed. The method utilizes a vacuum chamber in which the insulated glazing units are placed. The insulated glazing units and vacuum chamber are evacuated simultaneously. The units are then refilled with a low conductance gas such as Krypton while the chamber is simultaneously refilled with air. 3 figs.

Arasteh, D.K.

1992-01-14T23:59:59.000Z

23

Electrochromic Glazings: Animation Parameters  

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

Glazings Glazings Animation Simulation Parameters The Electrochromic Glazing Office Animation is created using an image compositing method whereby separate images of the office generated with only one source of illumination are added together in variable percentages to come up with the final image. This method assumes that the sources of illumination do not change position through the animation sequence. Although the sun does move approximately 5 degrees during the span of this 20 minute animation sequence, because this movement is not the focus of the simulation and does not significantly change the intensity of the solar exposure, it is ignored. This method takes advantage of the principal of the scalability of light to avoid the significant time involved in calculating separate Radiance renderings for each combination of sky condition (direct sun versus no direct sun) and electrochromic glazing transmission.

24

Thermal Transport in High-Strength Polymethacrylimide (PMI) Foam Insulations  

Science Journals Connector (OSTI)

Thermal transport in high-strength polymethacrylimide (PMI) foam insulations is described, with special emphasis on the... $$3\\omega $$ ...

L. Qiu; X. H. Zheng; J. Zhu; D. W. Tang…

2014-06-01T23:59:59.000Z

25

Building Technologies Office: Advanced Insulation for High Performance  

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

Advanced Insulation for Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project to someone by E-mail Share Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Facebook Tweet about Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Twitter Bookmark Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Google Bookmark Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Delicious Rank Building Technologies Office: Advanced Insulation for High

26

insulation  

Science Journals Connector (OSTI)

The material used to insulate an electrical conductor, i.e., to enable a point to maintain an insulated state. Note: Insulations consist of dielectric materials. Airspace may serve...See also ...

2001-01-01T23:59:59.000Z

27

Complex Glazing Database  

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

1.2 1.2 This is a Beta version of the Complex Glazing Database (CGDB) for WINDOW 6. The data in the list below was measured by LBNL for this first data set. In the future, LBNL will publish measurement and submittal procedures so that manufacturers can submit their own data to LBNL for review and inclusion in subsequent databases, in a similar fashion to the International Glazing Database (IGDB). The numbering scheme for each manufacturer is a Beta scheme and will be further developed in the next few months. Alkenz USA Inc Shading Material Name BSDF XML File Shading Layer Name ID Type Sunshadow 3000, N901 Charcoal (SA-31) 2011-SA31.XML Sunshadow 3000, N901 Charcoal (WS) 7000 BSDF File Sunshadow 3100, N002 white/bone (SA-30) 2011-SA30.XML Sunshadow 3100, N002 white/bone (WS)

28

Measured Performance of Selective Glazings  

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

Measured Performance of Selective Glazings Measured Performance of Selective Glazings Title Measured Performance of Selective Glazings Publication Type Conference Paper LBNL Report Number LBL-37747 Year of Publication 1995 Authors Klems, Joseph H., Mehry Yazdanian, and Guy O. Kelley Conference Name Thermal Performance of the Exterior Envelopes of Buildings VI Conference Date Published 12/1995 Conference Location Clearwater Beach, FL Call Number LBL-37747 Abstract Measurements of the net heat flow through four selective glazings in comparison with clear double glazing under late summer outdoor conditions are presented. The solar heat gain coefficient (SHGC) for each glazing is extracted from the data and shown to be angle-dependent. Good agreement is found between measured properties and calculations with WINDOW 4.1.

29

Measured performance of selective glazings  

SciTech Connect (OSTI)

Measurements of the net heat flow through four selective glazings in comparison with clear double glazing under late summer outdoor conditions are presented. The SHGC for each glazing is extracted from the data and shown to be angle-dependent. The method of extracting the angle-dependent SHGC from the data is checked by comparing the measured SHGC for the clear double glazing to the calculation of OW 4. 1, which is assumed to be correct. Good agreement between the two is found. The measured angle-dependent SHGC`s of the selective glazings are then used to test the OW 4.1 selective glazing calculation and good agreement is again found.

Klems, J.H.; Yazdanian, M.; Kelley, G.O.

1995-07-01T23:59:59.000Z

30

Highly Insulating Windows Volume Purchase Program Final Report  

SciTech Connect (OSTI)

This report summarizes the Highly Insulating Windows Volume Purchase Program, conduced by PNNL for DOE-BTP, including a summary of outcomes and lessons learned.

Parker, Graham B.; Mapes, Terry S.; Zalis, WJ

2013-02-01T23:59:59.000Z

31

Predicting optical and thermal characteristics of transparent single-glazed domed skylights  

SciTech Connect (OSTI)

Optical and thermal characteristics of domed skylights are important to solve the trade-off between daylighting and thermal design. However, there is a lack of daylighting and thermal design tools for domed skylights. Optical and thermal characteristics of transparent single-glazed hemispherical domed skylights under sun and sky light are evaluated based on an optical model for domed skylights. The optical model is based on tracing the beam and diffuse radiation transmission through the dome surface. A simple method is proposed to replace single-glazed hemispherical domed skylights by optically and thermally equivalent single-glazed planar skylights to accommodate limitations of energy computer programs. Under sunlight, single-glazed hemispherical domed skylights yield slightly lower equivalent solar transmittance and solar heat gain coefficient (SHGC) at near normal zenith angles than those of single-glazed planar skylights. However, single-glazed hemispherical domed skylights yield substantially higher equivalent solar transmittance and SHGC at high zenith angles and around the horizon. Under isotropic skylight, single-glazed hemispherical domed skylights yield slightly lower equivalent solar transmittance and SHGC than those of single-glazed planar skylights. Daily solar heat gains of single-glazed hemispherical domed skylights are higher than those of single-glazed horizontal planar skylights in both winter and summer. In summer, the solar heat gain of single-glazed hemispherical domed skylights can reach 3% to 9% higher than those of horizontal single-glazed planar skylights for latitudes varying between 0 and 55{degree} (north/south). In winter, however, the solar heat gains of single-glazed hemispherical domed skylights increase significantly with the increase of the site latitude and can reach 232% higher than those of horizontal single-glazed planar skylights, particularly for high latitude countries.

Laouadi, A.; Atif, M.R.

1999-07-01T23:59:59.000Z

32

High voltage gas insulated transmission line with continuous particle trapping  

DOE Patents [OSTI]

This invention provides a novel high voltage gas insulated transmission line utilizing insulating supports spaced at intervals with snap-in means for supporting a continuous trapping apparatus and said trapping apparatus having perforations and cutouts to facilitate trapping of contaminating particles and system flexibility.

Cookson, Alan H. (Pittsburgh, PA); Dale, Steinar J. (Monroeville, PA)

1983-01-01T23:59:59.000Z

33

CALCULATING OPTICAL CONSTANTS OF GLAZING MATERIALS  

E-Print Network [OSTI]

Solar Energy CALCULATING OPTICAL CONSTANTS OF GLAZING MATERIALS Michael Rub August 1981 TWO-WEEK LOAN

Rubin, Michael

2013-01-01T23:59:59.000Z

34

Thermal solar collector with VO2 absorber coating and thermochromic glazing – Temperature matching and triggering  

Science Journals Connector (OSTI)

Abstract Overheating is a common problem both with the use of active and passive solar energy in thermal solar energy systems and in highly glazed buildings, even in central European latitudes. In solar thermal collectors, the elevated temperatures occurring during stagnation result in reduced lifetime of the collector materials. They lead to water evaporation, glycol degradation and stresses in the collector with increasing vapor pressure. Special precautions are necessary to release this pressure; only mechanical solutions exist nowadays. The temperature of degradation of glycols is above 160–170 °C. However, it would be preferable to limit the temperature of the collector to approximately 100 °C, avoiding likewise the evaporation of the used water-glycol mixture. Additionally, the elevated temperatures lead to degradation of the materials that compose the collector, such as sealing, thermal insulation and the selective absorber coating. A new way of protecting solar thermal systems without any mechanical device (e.g. for shading or for pressure release) is proposed. A durable inorganic thermochromic material, which exhibits a change in optical properties at a transition temperature T t , is vanadium dioxide (VO2). At 68 °C, VO2 undergoes a reversible crystal structural phase transition accompanied by a strong variation in optical properties. Therefore, a dynamical switching of the thermal emittance ? th can be achieved by VO2. By doping the material with tungsten, it is possible to lower the transition temperature making it suitable as a glazing coating. The possibility of using the switch in emittance of the absorber coating in order to trigger the transition of a thermochromic coating on the glazing of the solar collector has been studied. An analytical approach yielded the required transition temperature of such a switching glazing. The fascinating optical properties of these switchable films elucidate the way towards novel intelligent thermal solar collector materials.

Antonio Paone; Mario Geiger; Rosendo Sanjines; Andreas Schüler

2014-01-01T23:59:59.000Z

35

Summaries of Addresses of Presidents of Sections: High-Voltage Insulation  

Science Journals Connector (OSTI)

... subject of his presidential address to Section A (Mathematics and Physics) *'High-voltage Insulation".

1963-08-31T23:59:59.000Z

36

State-of-the-Art Highly Insulating Window Frames - Research and Market Review  

E-Print Network [OSTI]

through vacuum and electrochromic vacuum glazed windows,technologies, such as an electrochromic vacuum glazedof rebate depth on an electrochromic vacuum glazed window.

Gustavsen, Arild

2008-01-01T23:59:59.000Z

37

Insulator coating for high temperature alloys method for producing insulator coating for high temperature alloys  

DOE Patents [OSTI]

A method for fabricating an electrically insulating coating on a surface is disclosed comprising coating the surface with a metal, and reacting the metal coated surface with a nonmetal so as to create a film on the metal-coated surface. Alternatively, the invention provides for a method for producing a noncorrosive, electrically insulating coating on a surface saturated with a nonmetal comprising supplying a molten fluid, dissolving a metal in the molten fluid to create a mixture, and contacting the mixture with the saturated surface. Lastly, the invention provides an electrically insulative coating comprising an underlying structural substrate coated with an oxide or nitride compound. 2 figs.

Park, J.H.

1998-06-23T23:59:59.000Z

38

Fabrication of high gradient insulators by stack compression  

DOE Patents [OSTI]

Individual layers of a high gradient insulator (HGI) are first pre-cut to their final dimensions. The pre-cut layers are then stacked to form an assembly that is subsequently pressed into an HGI unit with the desired dimension. The individual layers are stacked, and alignment is maintained, using a sacrificial alignment tube that is removed after the stack is hot pressed. The HGI's are used as high voltage vacuum insulators in energy storage and transmission structures or devices, e.g. in particle accelerators and pulsed power systems.

Harris, John Richardson; Sanders, Dave; Hawkins, Steven Anthony; Norona, Marcelo

2014-04-29T23:59:59.000Z

39

Electrochromic Glazings: How they Work  

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

How they Work How they Work Electrochromic glazings have great potential to improve the energy efficiency and occupant comfort afforded by architectural windows. These smart windows can dynamically control light transmission by windows in buildings, automobiles, and aircraft. Electrochromic glazings are the most significant members of a family of chromogenic light-control technologies that includes large-area dispersed liquid crystals, dispersed particle windows, and photochromic and thermochromic materials. Electrochromic devices represent the most versatile window technology of this type, exhibiting the best combination of switching properties for chromogenic window applications. Electrochromic glazings typically have a change in visible light transmission from 10% to 70%, moderately fast switching times, and low dc power consumption. These glazings have memory, so they only need power to make a change in transmission. Electrochromic technology can be coupled with smart control systems to give constant lighting levels, blending artificial lighting with daylighting for improved building energy efficiency. Energy simulations of office buildings indicate that smart windows with lighting controls in arid climates can provide 30-40% energy savings over conventional windows. Savings are realized in cooling, lighting, and peak utility electric loads. Other benefits include smaller heating, ventilating, and air-conditioning (HVAC) systems and greater thermal and visual comfort.

40

Key Elements of and Materials Performance Targets for Highly Insulating  

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

Key Elements of and Materials Performance Targets for Highly Insulating Key Elements of and Materials Performance Targets for Highly Insulating Window Frames Title Key Elements of and Materials Performance Targets for Highly Insulating Window Frames Publication Type Journal Article LBNL Report Number LBNL-5099E Year of Publication 2011 Authors Gustavsen, Arlid, Steinar Grynning, Dariush K. Arasteh, Bjørn Petter Jelle, and Howdy Goudey Journal Energy and Buildings Volume 43 Issue 10 Pagination 2583-2594 Date Published 10/2011 Keywords Fenestration, heat transfer modeling, thermal performance, thermal transmittance, u-factor, window frames Abstract The thermal performance of windows is important for energy efficient buildings. Windows typically account for about 30-50 percent of the transmission losses though the building envelope, even if their area fraction of the envelope is far less. The reason for this can be found by comparing the thermal transmittance (U-factor) of windows to the U-factor of their opaque counterparts (wall, roof and floor constructions). In well insulated buildings the U-factor of walls, roofs an floors can be between 0.1-0.2 W/(m2K). The best windows have U-values of about 0.7-1.0. It is therefore obvious that the U-factor of windows needs to be reduced, even though looking at the whole energy balance for windows (i.e. solar gains minus transmission losses) makes the picture more complex.

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


41

SUPERGLASS. Engineering field tests - Phase 3. Production, market planning, and product evaluation for a high-thermal-performance insulating glass design utilizing HEAT MIRROR transparent insulation. Final report  

SciTech Connect (OSTI)

HEAT MIRROR transparent window insulation consists of a clear polyester film two mils (.002'') thick with a thin, clear low-emissivity (.15) coating deposited on one side by state-of-the-art vacuum deposition processes. This neutral-colored invisible coating reflects long-wave infrared energy (heat). When mounted by being stretched with a 1/2'' air-gap on each side of the film, the resulting unit reduces heat loss by 60% compared to dual insulating glass. Southwall Corporation produces HEAT MIRROR transparent insulation and markets it to manufacturers of sealed insulating glass (I.G.) units and window and building manufacturers who make their own I.G. These companies build and sell the SUPERGLASS sealed glazing units. Units made and installed in buildings by six customers were visited. These units were located in many geographic regions, including the Pacific Northwest, Rocky Mountains, New England, Southeast, and West Coast. As much as could be obtained of their history was recorded, as was their current condition and performance. These units had been in place from two weeks to over a year. All of the units were performing thermally very well, as measured by taking temperature profiles through them and through adjacent conventional I.G. units. Some units had minor visual defects (attributed to I.G. assembly techniques) which are discussed in detail. Overall occupant acceptance was enthusiastically positive. In addition to saving energy, without compromise of optical quality or appearance, the product makes rooms with large glazing areas comfortable to be in in cold weather. All defects observed were present when built; there appears to be no in-field degradation of quality at this time.

Tilford, C L

1982-11-01T23:59:59.000Z

42

Chapter 19. High Voltage Insulation, Diagnostics and Energetic Electron and Photon Beam Interactions  

E-Print Network [OSTI]

Chapter 19. High Voltage Insulation, Diagnostics and Energetic Electron and Photon Beam Interactions 19-1 High Voltage Insulation, Diagnostics and Energetic Electron and Photon Beam Interactions 1. DC Properties of Modern Filled Epoxy Insulation Academic and Research Staff Dr. Chathan Cooke Sponsor

43

Evaluation of Insulation Systems for the Optimal Design of High Voltage Pulse Transformers  

E-Print Network [OSTI]

This paper presents a study for the design of the insulation systems of high voltage pulse transformer based on experimental tests and numerical simulations. Data of high voltage tests on solid and liquid insulation materials are presented and discussed. The understanding of each part of the insulation is supported by electrostatic fields simulations.

Sylvain, Candolfi; Davide, Aguglia; Philippe, Viarouge; Jürgen, Biela; Jerome, Cros

2015-01-01T23:59:59.000Z

44

High Reliability R-10 Windows Using Vacuum Insulating Glass Units  

SciTech Connect (OSTI)

The objective of this effort was for EverSealed Windows (“EverSealed” or “ESW”) to design, assemble, thermally and environmentally test and demonstrate a Vacuum Insulating Glass Unit (“VIGU” or “VIG”) that would enable a whole window to meet or exceed the an R-10 insulating value (U-factor ? 0.1). To produce a VIGU that could withstand any North American environment, ESW believed it needed to design, produce and use a flexible edge seal system. This is because a rigid edge seal, used by all other know VIG producers and developers, limits the size and/or thermal environment of the VIG to where the unit is not practical for typical IG sizes and cannot withstand severe outdoor environments. The rigid-sealed VIG’s use would be limited to mild climates where it would not have a reasonable economic payback when compared to traditional double-pane or triple-pane IGs. ESW’s goals, in addition to achieving a sufficiently high R-value to enable a whole window to achieve R-10, included creating a VIG design that could be produced for a cost equal to or lower than a traditional triple-pane IG (low-e, argon filled). ESW achieved these goals. EverSealed produced, tested and demonstrated a flexible edge-seal VIG that had an R-13 insulating value and the edge-seal system durability to operate reliably for at least 40 years in the harshest climates of North America.

Stark, David

2012-08-16T23:59:59.000Z

45

Self-monitoring high voltage transmission line suspension insulator  

DOE Patents [OSTI]

A high voltage transmission line suspension insulator (18 or 22) which monitors its own dielectric integrity. A dielectric rod (10) has one larger diameter end fitting attachable to a transmission line and another larger diameter end fitting attachable to a support tower. The rod is enclosed in a dielectric tube (14) which is hermetically sealed to the rod's end fittings such that a liquidtight space (20) is formed between the rod and the tube. A pressurized dielectric liquid is placed within that space. A discoloring dye placed within this space is used to detect the loss of the pressurized liquid.

Stemler, Gary E. (Vancouver, WA); Scott, Donald N. (Vancouver, WA)

1981-01-01T23:59:59.000Z

46

Advanced Insulation for High Performance Cost-effective Wall, Roof, and  

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

Advanced Insulation for High Performance Advanced Insulation for High Performance Cost-effective Wall, Roof, and Foundation Systems Research Project Advanced Insulation for High Performance Cost-effective Wall, Roof, and Foundation Systems Research Project The U.S. Department of Energy (DOE) is currently conducting research into advanced insulation for high performance wall, roof, and foundation systems. Heat flows from hotter to colder spaces, and insulation is designed to resist this flow by keeping hot air out in the summer and in during the winter. Project Description This project seeks to develop high performing, durable, hydrofluorocarbon and hydrochlorofluorocarbons -free insulation with an R-value greater than 7.5-per-inch and a Class A fire performance. Project Partners Research is being undertaken between DOE and Dow Chemical.

47

Round-robin artificial contamination test on high voltage dc insulators  

SciTech Connect (OSTI)

This paper summarizes the results of a worldwide round-robin test of high voltage dc (HVDC) insulators, which was carried out in six laboratories aiming at standardization of the method for artificial contamination tests on HVDC insulators. Flashover characteristics of three kinds of specimens were evaluated by the clean fog and the salt fog procedures. Sufficient information is now available to allow the preparation of provisional international specifications for artificial contamination testing of HVDC insulators.

Naito, K.; Schneider, H.M.

1995-07-01T23:59:59.000Z

48

New live line tester for porcelain suspension insulators on high-voltage power lines  

SciTech Connect (OSTI)

Suspension insulator assemblies known as insulator strings are used in overhead power transmission lines to mechanically support high-voltage conductors while providing adequate insulation to withstand switching and lightning overvoltages. Since the useful life in service of the individual insulator elements making up these strings is hard to predict, they must be verified periodically to insure that adequate line reliability is maintained at all times. Over the years many testing methods have been used for this purpose, each one with its own advantages and disadvantages. Until now at Hydro-Quebec, porcelain insulators had been tested by the buzz method which simply consists of applying a short-circuit to each insulator in a string and listening for a buzz-like sound indicating a good insulator. However, safety considerations that preclude short-circuiting insulators and other disadvantages of that method have led Hydro-Quebec to undertake and complete the development of a new insulator tester. The working principle of this new device is based on the automatic measurement and recording of the electric field along the insulator string which decreases considerably in front of an internally-shorted insulator. The tester is slid along the string while the insulators are counted automatically. The information from tests on up to 200 strings can be stored in the device to be later transferred in a host computer for interpretation and/or permanent storage. The new tester also gives information on voltage distribution along the insulator strings which can be useful for the design of future power transmission lines.

Vaillancourt, G.H.; St-Jean, M. (Hydro-Quebec, Varennes, Quebec (Canada)); Bellerive, J.P. (Hydro-Quebec, Montreal, Quebec (Canada)); Jean, C. (Positron Inc., Montreal, Quebec (Canada))

1994-01-01T23:59:59.000Z

49

Sound transmission loss of double?glazed window panes—an empirical approach  

Science Journals Connector (OSTI)

There are only a few contributions to the theory of sound transmission loss (STL) of double?glazed window panes e.g. by M. Rehfeld et al. (1996). The situation is nearly the same with the empirical approach of reducing data from laboratory measurements to a simple formula as done by K. Goesele (1977). Goesele inferred a result in terms of the single?number rating according to ISO 717 based on many laboratory STL measurements as described in DIN 52210 and ISO 140. In particular measurements of air?filled double?glazed window panes had been used. Meanwhile the gas fillings changed because the thermal insulation of the window panes had to be increased. In the last five years a large number of STL measurements of double?glazed window panes with different dimensions (pane thicknesses gap between the panes) and gas fillings have been carried out at the Fraunhofer?Institut fuer Bauphysik. From these measurements some typical behaviors of STL versus frequency belonging to specific pane configurations could be derived. This should allow an approximate prediction of the STL for given physical dimensions of double?glazed window panes.

Siegfried Koch

1999-01-01T23:59:59.000Z

50

Evaluation of solar heat gain coefficient for solar-control glazings and shading devices  

SciTech Connect (OSTI)

The determination of solar heat gain coefficient (SHGC) values for complex fenestration systems is required to evaluate building energy performance, to estimate peak electrical loads, and to ensure occupant comfort. In the past, simplified techniques have been used to calculate the values of SHGC for fenestration systems. As glazing systems that incorporate complex geometries become more common, test methods are required to evaluate these products and to aid in the development of new computational tools. Recently, a unique facility and test method for the experimental determination of SHGC values were developed and demonstrated for simple fenestration systems. The study described in this paper further applies this method to a variety of commercially available glazing and shading systems (e.g., heat-absorbing insulated glazing units (IGUs), reflective film and suspended film IGUs), and shading devices (i.e., slat blinds and shades). Testing was conducted in a solar simulator facility using a specially designed window calorimeter. The results of this study demonstrate the feasibility of the solar simulator-based test method for the evaluation of SHGC values for solar-control glazings and shading devices.

Harrison, S.J. [Queen`s Univ., Kingston, Ontario (Canada). Dept. of Mechanical Engineering; Wonderen, S.J. van [Arvin Industries, Inc., Toronto, Ontario (Canada)

1998-10-01T23:59:59.000Z

51

Possible Field-Tuned Superconductor-Insulator Transition in High...  

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

that the resistance increases as R &24; e T A T with a characteristic activation energy k B T A . T A is of the order T c0 (about 1 K) for the strongest insulator (sample 3),...

52

Measure Guideline: Three High Performance Mineral Fiber Insulation Board Retrofit Solutions  

SciTech Connect (OSTI)

This Measure Guideline describes a high performance enclosure retrofit package that uses mineral fiber insulation board. The Measure Guideline describes retrofit assembly and details for wood frame roof and walls and for cast concrete foundations. This Measure Guideline is intended to serve contractors and designers seeking guidance for non-foam exterior insulation retrofit.

Neuhauser, K.

2015-01-01T23:59:59.000Z

53

Method and apparatus for fabrication of high gradient insulators with parallel surface conductors spaced less than one millimeter apart  

DOE Patents [OSTI]

Optical patterns and lithographic techniques are used as part of a process to embed parallel and evenly spaced conductors in the non-planar surfaces of an insulator to produce high gradient insulators. The approach extends the size that high gradient insulating structures can be fabricated as well as improves the performance of those insulators by reducing the scale of the alternating parallel lines of insulator and conductor along the surface. This fabrication approach also substantially decreases the cost required to produce high gradient insulators.

Sanders, David M. (Livermore, CA); Decker, Derek E. (Livermore, CA)

1999-01-01T23:59:59.000Z

54

High-temperature zirconia insulation and method for making same  

DOE Patents [OSTI]

The present invention is directed to a highly pure, partially stabilized, fibrous zirconia composite for use as thermal insulation in environments where temperatures up to about 2,000 C are utilized. The composite of the present invention is fabricated into any suitable configuration such as a cone, cylinder, dome or the like by vacuum molding an aqueous slurry of partially stabilized zirconia fibers into a desired configuration on a suitably shaped mandrel. The molded fibers are infiltrated with zirconyl nitrate and the resulting structure is then dried to form a rigid structure which may be removed and placed in a furnace. The structure is then heated in air to a temperature of about 600 C for driving off the nitrate from the structure and for oxidizing the zirconyl ion to zirconia. Thereafter, the structure is heated to about 950 to 1,250 C to fuse the zirconia fibers at their nexi in a matrix of zirconia. The composite produced by the present invention is self-supporting and can be readily machined to desired final dimensions. Additional heating to about 1,800 to 2,000 C further improves structural rigidity.

Wrenn, G.E. Jr.; Holcombe, C.E. Jr.; Lewis, J. Jr.

1988-05-10T23:59:59.000Z

55

Surface Temperatures of Insulated Glazing Units: Infrared Thermography Laboratory Measurements  

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

Infrared Thermography Measurements of Window Thermal Test Specimen Infrared Thermography Measurements of Window Thermal Test Specimen Surface Temperatures Brent T. Griffith ASHRAE Member, Howdy Goudey, and Dariush Arasteh P.E. ASHRAE Member Building Technologies Program Environment Energy Technologies Division Lawrence Berkeley National Laboratory University of California Berkeley CA 94720 USA August 2, 2001 This work was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Building Technology, State and Community Programs, Office of Building Systems of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098. Surface Temperatures of Window Specimens: Infrared Thermography Laboratory Measurements Brent T. Griffith 1 , Howdy Goudey, and Dariush Arasteh

56

Optical High Voltage Sensor with Oil- and Gas-free Insulation  

Science Journals Connector (OSTI)

We present an electro-optic high voltage sensor with novel oil- and gas-free insulation based on capacitive electric field steering. The sensor's accuracy is within ±0.2% in a...

Marchese, Sergio V; Wildermuth, Stephan; Steiger, Olivier; Pascal, Joris; Bohnert, Klaus; Eriksson, Göran; Czyzewski, Jan

57

Superconductor-insulator transition induced by electrostatic charging in high temperature superconductors.  

E-Print Network [OSTI]

??Ultrathin YBa2Cu3O7?x films were grown on SrTiO3 substrates in a high pressure oxygen sputtering system to study the superconductor-insulator transition by electrostatic charging. While backside… (more)

Leng, Xiang

2011-01-01T23:59:59.000Z

58

Insulation Workers  

Science Journals Connector (OSTI)

Insulation workers apply insulation materials on objects and buildings for thermal insulation and/or waterproofing.

R. Riala

2012-01-01T23:59:59.000Z

59

Dynamic Glazing from a Material Science Perspective  

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

Dynamic Glazing from a Material Science Perspective Dynamic Glazing from a Material Science Perspective Speaker(s): Sunnie Lim Date: February 16, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Dragan Charlie Curcija Advanced window technology has been identified as a component which can greatly reduce the energy consumption of the building envelope. The next generation of advanced windows will involve a "smart-coating" technology where the optical and solar properties can be dynamically controlled. The performance of such coating is ultimately linked to its materials properties such as chemical composition and microstructure. These properties are directly influenced by the deposition process conditions. A promising dynamic windows technology is based upon the electrochromism process. An electrochromic window system consists of a sandwich of

60

Thermally insulated pipelines successfully move high-wax-content crude offshore Gabon  

SciTech Connect (OSTI)

Three thermally insulated pipelines have been installed at a water depth of 35 m (115 ft) in Shell Gabon's Lucina Marine field. The three lines consist of two 2-km (1.24-mile) long flowlines connecting drilling and production platforms and a 3.2 km (2 mile) long loading line connecting a production platform to a storage tanker permanently moored in the field. All three pipelines are of 10.75-in. OD with rigid polyurethane-foam insulation contained in a high-density polyethylene sleeve. The pipelines have been designed with an operating temperature of 90/degree/C. (194/degree/F.). Thermal insulation was chosen because of the Lucina crude's high wax cloud point of 55/degree/C. (131/degree/F.). Without insulation, cooling of the crude in subsea pipelines would have lead to rapid wax deposition. Details of the coating and insulation of the line and riser pipe are given. For the line pipe, a thermal-insulation system consisting of polyurethane foam (PUF) within a polyethylene (PE) sleeve pipe was chosen.

Hales, M.

1982-01-25T23:59:59.000Z

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


61

Movable insulation. A guide to reducing heating and cooling losses through the windows in your home  

SciTech Connect (OSTI)

A typical house loses 25 to 30% of its heat through windows, and a house with large windows may lose as much as 50%. Numerous movable-insulation systems that will cut the heat loss through windows in half are described. Chapters are: The Energy-Responsive Dwelling, Past to Present; Window Heat Losses and Gains; Enhanced Glazing Systems; Choosing a Window-Insulation Design for Your Home; Pop-In Shutters; Thermal Curtains - Blankets that Fold; Thermal Shades - Blankets that Roll; Thermal Shutters and Folding Screens; Insulation Between Glazing and Interior Louvers; Exterior Hinged and Sliding Shutters; Sun-Shading Screens; Exterior Roll Shutters; Shutters for Skylights; Shutters for Clerestory Windows; Interior Greenhouse Insulation Systems; Exterior Insulation for Greenhouses; Movable Insulation to Assist Passive Space Heating; and Movable Insulation to Assist Solar Water Heaters. Appendices include the following: insulated shade and shutter construction; the economics of window insulation; movable insulation products, hardware, and components; further technical information; and design sources. (MCW)

Langdon, W.K.

1980-01-01T23:59:59.000Z

62

State-of-the-Art Highly Insulating Window Frames - Research and Market  

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

State-of-the-Art Highly Insulating Window Frames - Research and Market State-of-the-Art Highly Insulating Window Frames - Research and Market Review Title State-of-the-Art Highly Insulating Window Frames - Research and Market Review Publication Type Report LBNL Report Number LBNL-1133E Year of Publication 2007 Authors Gustavsen, Arlid, Bjørn Petter Jelle, Dariush K. Arasteh, and Christian Kohler Call Number LBNL-1133E Abstract This document reports the findings of a market and research review related to state-of-the-art highly insulating window frames. The market review focuses on window frames that satisfy the Passivhaus requirements (window U-value less or equal to 0.8 W/m2K), while other examples are also given in order to show the variety of materials and solutions that may be used for constructing window frames with a low thermal transmittance (U-value). The market search shows that several combinations of materials are used in order to obtain window frames with a low U-value. The most common insulating material seems to be Polyurethane (PUR), which is used together with most of the common structural materials such as wood, aluminum, and PVC.

63

Calcium silicate insulation structure  

DOE Patents [OSTI]

An insulative structure including a powder-filled evacuated casing utilizes a quantity of finely divided synthetic calcium silicate having a relatively high surface area. The resultant structure-provides superior thermal insulating characteristics over a broad temperature range and is particularly well-suited as a panel for a refrigerator or freezer or the insulative barrier for a cooler or a insulated bottle.

Kollie, Thomas G. (Oak Ridge, TN); Lauf, Robert J. (Oak Ridge, TN)

1995-01-01T23:59:59.000Z

64

Electronic properties of doped Mott insulators and high temperature superconductors  

E-Print Network [OSTI]

High-temperature superconducting cuprates, which are the quintessential example of a strongly correlated system and the most extensively studied materials after semiconductors, spurred the development in the fields of ...

Ribeiro, Tiago Castro

2005-01-01T23:59:59.000Z

65

Development of high void fraction polylactide composite foams using injection molding: Mechanical and thermal insulation properties  

Science Journals Connector (OSTI)

Abstract Polylactide (PLA) and PLA composites with void fractions as high as 65% were fabricated using low-pressure foam injection molding (FIM) and high-pressure FIM (HPFIM) equipped with mold opening and gas counter pressure. The cellular morphology and crystallinity were characterized using scanning electron microscopy and differential scanning calorimetry, respectively. The mechanical (flexural and impact resistance) and thermal insulation properties were also measured. Unlike, talc, the addition of nanoclay markedly enhanced the ductility of solid PLA samples as well as significantly improved the cell morphology of foamed samples, which resulted in the increased specific modulus, strength and impact resistance. In all the PLA samples made using HPFIM, with an increased void fraction up to 55%, the flexural rigidity increased up to four times, the specific impact resistance increased up to 15%, and the thermal insulation increased up to three times. The results of this investigation revealed that low-density PLA composite foams with improved rigidity, impact strength, and thermal insulation can be developed using HPFIM for various applications such as transportation and construction industries.

A. Ameli; D. Jahani; M. Nofar; P.U. Jung; C.B. Park

2014-01-01T23:59:59.000Z

66

High transition temperature superconductor/insulator bilayers for the development of ultra-fast electronics  

SciTech Connect (OSTI)

High transition temperature superconductor (HTc)/SrTiO{sub 3} (STO) bilayers were fabricated by sputtering deposition on (100) STO substrates. Their transport and morphological properties were characterized using conductive atomic force microscopy. The STO barriers present good insulating properties, with long attenuation lengths (? ? 1 nm) which reduce the junction resistance and increase the operating critical current. The samples present roughness values smaller than 1 nm, with an extremely low density of surface defects (?5 × 10{sup ?5} defects/?m{sup 2}). The high control of the barrier quality over large defect free surfaces is encouraging for the development of microelectronics devices based in HTc Josephson junctions.

Sirena, M.; Félix, L. Avilés [Consejo Nacional de Investigaciones Científicas y Técnicas, Centro Atómico Bariloche, CNEA, Bustillo 9500, 8400 Bariloche (Argentina) [Consejo Nacional de Investigaciones Científicas y Técnicas, Centro Atómico Bariloche, CNEA, Bustillo 9500, 8400 Bariloche (Argentina); Instituto Balseiro, Universidad Nacional de Cuyo and CNEA, 8400 Bariloche (Argentina); Haberkorn, N. [Consejo Nacional de Investigaciones Científicas y Técnicas, Centro Atómico Bariloche, CNEA, Bustillo 9500, 8400 Bariloche (Argentina)] [Consejo Nacional de Investigaciones Científicas y Técnicas, Centro Atómico Bariloche, CNEA, Bustillo 9500, 8400 Bariloche (Argentina)

2013-07-29T23:59:59.000Z

67

Gas insulated transmission line with insulators having field controlling recesses  

DOE Patents [OSTI]

A gas insulated transmission line having a novel insulator for supporting an inner conductor concentrically within an outer sheath. The insulator has a recess contiguous with the periphery of one of the outer and inner conductors. The recess is disposed to a depth equal to an optimum gap for the dielectric insulating fluid used for the high voltage insulation or alternately disposed to a large depth so as to reduce the field at the critical conductor/insulator interface.

Cookson, Alan H. (Pittsburgh, PA); Pederson, Bjorn O. (Chelmsford, MA)

1984-01-01T23:59:59.000Z

68

Insulation Workers  

Science Journals Connector (OSTI)

Insulation workers install or spray insulation on pipes, boilers, walls, roofs, floors, etc. to improve thermal insulation or waterproofing. Most thermal insulation is now composed of man-made mineral ... rock wo...

R. Riala

2000-01-01T23:59:59.000Z

69

Atomic scale 0-pi transition in a high-Tc superconductor/ferromagnetic-insulator/high-T superconductor Josephson junction  

E-Print Network [OSTI]

We study the Josephson transport in a high-Tc superconductor/ferromagnetic-insulator(FI)/high-Tc superconductor numerically. We found the formation of a pi-junction in such systems. More remarkably the ground state of such junction alternates between 0- and pi-states when thickness of FI is increasing by a single atomic layer. We propose an experimental setup for observing the atomic-scale 0-pi transition. Such FI-based pi-junctions can be used to implement highly-coherent quantum bits.

Kawabata, Shiro; Asano, Yasuhiro

2011-01-01T23:59:59.000Z

70

Design and Evaluation of Daylighting Applications of Holographic Glazings  

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

Design and Evaluation of Daylighting Applications of Holographic Glazings Design and Evaluation of Daylighting Applications of Holographic Glazings Title Design and Evaluation of Daylighting Applications of Holographic Glazings Publication Type Report LBNL Report Number LBNL-44167 Year of Publication 1996 Authors Papamichael, Konstantinos M., Charles K. Ehrlich, and Gregory J. Ward Call Number LBNL-44167 Abstract When combined with appropriate electric lighting dimming controls, the use of daylight for ambient and task illumination can significantly reduce energy requirements in commercial buildings. While skylights can effectively illuminate any part of one-story buildings, conventional side windows can illuminate only a 15 ft - 20 ft (4.6 m - 6.1 m) depth of the building perimeter. Even so, the overall efficacy of daylight is limited, because side windows produce uneven distributions of daylight. Achieving adequate illumination at distances further away from the window results in excessive illumination near the window, which increases cooling loads from the associated solar heat gain. As a result, the use of larger apertures and/or higher transmittance glazings, to introduce daylight deeper than 15 ft - 20 ft (4.6 m - 6.1 m), may prove ineffective with respect to saving energy, because cooling load penalties may exceed the electric lighting savings.

71

Investigation of a high impedance magnetically insulated transmission line oscillator with hollow load  

SciTech Connect (OSTI)

A novel high-impedance magnetically insulated transmission line oscillator (MILO) with greatly restrained power deposition on the anode has been investigated. Methods to increase the MILO impedance and decrease the anode current are discussed. A MILO with impedance of 30 {Omega} and power conversion efficiency of 25% is presented by particle-in-cell simulations. Compared with the previous MILO in our lab, the anode current of the proposed MILO is reduced about 50%, the power conversion efficiency doubles, and the power deposition on anode is reduced nearly one half. Furthermore, considerations for reducing the power deposition on load have also been carried out in MILO design, and the load current is reduced to 4.6 kA, only 17% of the total anode current. Finally, a hollow load was introduced to reduce the power deposition density on the load, without decreasing the power conversion efficiency.

Zhou Heng; Shu Ting; Li Zhiqiang [College of Opto-electric Science and Engineering, National University of Defense Technology, Hunan 410073 (China)

2012-09-15T23:59:59.000Z

72

Natural convection with mixed insulating and conducting boundary conditions: low and high Rayleigh numbers regimes  

E-Print Network [OSTI]

We investigate the stability and dynamics of natural convection in two dimensions, subject to inhomogeneous boundary conditions. In particular, we consider a Rayleigh-B\\`enard (RB) cell, where the horizontal top boundary contains a periodic sequence of alternating thermal insulating and conducting patches, and we study the effects of the heterogeneous pattern on the global heat exchange, both at low and high Rayleigh numbers. At low Rayleigh numbers, we determine numerically the transition from a regime characterized by the presence of small convective cells localized at the inhomogeneous boundary to the onset of bulk convective rolls spanning the entire domain. Such a transition is also controlled analytically in the limit when the boundary pattern length is small compared with the cell vertical size. At higher Rayleigh number, we use numerical simulations based on a lattice Boltzmann method to assess the impact of boundary inhomogeneities on the fully turbulent regime up to $Ra \\sim 10^{10}$.

Ripesi, P; Sbragaglia, M; Wirth, A

2014-01-01T23:59:59.000Z

73

Peg supported thermal insulation panel  

DOE Patents [OSTI]

A thermal insulation panel which is lightweight, load bearing, accommodates thermal stress, and has excellent high temperature insulation capability comprises high performance insulation between thin metal walls supported by high density, high strength glass pegs made in compliance with specified conditions of time, temperature and pressure. 2 figs.

Nowobilski, J.J.; Owens, W.J.

1985-04-30T23:59:59.000Z

74

Peg supported thermal insulation panel  

DOE Patents [OSTI]

A thermal insulation panel which is lightweight, load bearing, accommodates thermal stress, and has excellent high temperature insulation capability comprising high performance insulation between thin metal walls supported by high density, high strength glass pegs made in compliance with specified conditions of time, temperature and pressure.

Nowobilski, Jeffert J. (Orchard Park, NY); Owens, William J. (Kenmore, NY)

1985-01-01T23:59:59.000Z

75

High voltage capability electrical coils insulated with materials containing SF.sub.6 gas  

DOE Patents [OSTI]

A coil is made having a plurality of layers of adjacent metal conductor windings subject to voltage stress, where the windings have insulation therebetween containing a small number of minute disposed throughout its cross-section, where the voids are voids filled with SF.sub.6 gas to substitute for air or other gaseous materials in from about 60% to about 95% of the cross-sectional void volume in the insulation, thus incorporating an amount of SF.sub.6 gas in the cross-section of the insulation effective to substantially increase corona inception voltages.

Lanoue, Thomas J. (Muncie, IN); Zeise, Clarence L. (Penn Township, Allegheny County, PA); Wagenaar, Loren (Muncie, IN); Westervelt, Dean C. (Acme, PA)

1988-01-01T23:59:59.000Z

76

High Resolution Parameter Space from a Two Level Model on Semi-Insulating GaAs  

E-Print Network [OSTI]

Semi-insulating Gallium Arsenide (SI-GaAs) samples experimentally show, under high electric fields and even at room temperature, negative differential conductivity in N-shaped form (NNDC). Since the most consolidated model for n-GaAs, namely, "the model", proposed by E. Scholl was not capable to generate the NNDC curve for SI-GaAs, in this work we proposed an alternative model. The model proposed, "the two-valley model" is based on the minimal set of generation recombination equations for two valleys inside of the conduction band, and an equation for the drift velocity as a function of the applied electric field, that covers the physical properties of the nonlinear electrical conduction of the SI-GaAs system. The "two valley model" was capable to generate theoretically the NNDC region for the first time, and with that, we were able to build a high resolution parameter-space of the periodicity (PSP) using a Periodicity-Detection (PD) routine. In the parameter space were observed self-organized periodic structu...

da Silva, S L; de Oliveira, A G; Ribeiro, G M; da Silva, R L

2014-01-01T23:59:59.000Z

77

Experimental Investigation on Thermal Properties of a Steel-jacketed Steam Heating Pipeline with Vacuum Insulation  

E-Print Network [OSTI]

. Vacuum insulation panel [J]. Vacuum. v46,1995: 839?842 [4] R. E. COLLINS, T. M. SIMKO. Current status of the science and technology of vacuum glazing [J]. Solar Energy. V62, 1998(3):189?213 [5] Douglas M. Smith, Alok Maskar, Ulrich Boes. Aerogel...

Na, W.; Zou, P.

2006-01-01T23:59:59.000Z

78

High-Performance Spray-Foam Insulation for Application on Saturn S-II Stage  

Science Journals Connector (OSTI)

Space boosters using liquid hydrogen as a propellant require insulation to minimize the heat leak into the liquid for ground and boost operations. Thus, during the early design phase of the Saturn S-II program...

F. E. Mack; M. E. Smith

1971-01-01T23:59:59.000Z

79

Insulation Materials | Department of Energy  

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

Insulation Materials Insulation Materials Insulation Materials May 30, 2012 - 10:08am Addthis Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Blown-in fiberglass insulation thoroughly fills the stud cavities in this home. | Photo courtesy of Bob Hendron, NREL. Blown-in fiberglass insulation thoroughly fills the stud cavities in this home. | Photo courtesy of Bob Hendron, NREL. Rigid foam board adds R-value to this wall in a Florida home. | Photo courtesy of FSEC/IBACOS. Rigid foam board adds R-value to this wall in a Florida home. | Photo

80

Microsoft PowerPoint - WINDOW6-ComplexGlazingTypeSummary-ForPresentation.ppt  

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

Christian Kohler, Mike Rubin, Jacob Jonsson Christian Kohler, Mike Rubin, Jacob Jonsson Dariush Arasteh, Robin Mitchell Windows & Daylighting Research Group March 2008 Complex Glazing Summary Complex Glazing Summary Environmental Energy Technologies Division Software Tools Overview Design / Simulation Tools DOE-2, EnergyPlus Radiance THERM (Window Frame) Optics (Window Glass) IGDB (Specular Glass Data Source) RESFEN (Whole Building Residential) COMFEN (Whole Building Commercial) CGDB (Complex Glazing Data Base) calculation calculation calculation WINDOW (Whole Window) Environmental Energy Technologies Division WINDOW6 Design / Simulation Tools DOE-2, EnergyPlus Radiance THERM (Window Frame) Optics (Window Glass) IGDB (Specular Glass Data Source) RESFEN (Whole Building Residential) COMFEN (Whole Building Commercial) CGDB (Complex Glazing

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


81

Insulation Resistance  

Science Journals Connector (OSTI)

n...(1) The electrical resistance between two conductors or systems of conductors separated only by an insulating material. The resistance of a particular insulation may be measured by dividing the v...

Jan W. Gooch

2011-01-01T23:59:59.000Z

82

Insulation resistance  

Science Journals Connector (OSTI)

n....(1) The electrical resistance between two conductors or systems of conductors separated only by an insulating material. The resistance of a particular insulation may be measured by dividing the ...

2007-01-01T23:59:59.000Z

83

New types of light-weight refractory and heat-insulation materials for long-term use at extremely high temperatures  

Science Journals Connector (OSTI)

The particulars of a technology for new types of refractory and heat-insulation materials with high porosity, which are obtained ... cellular structure of the polymer base (polyurethane foam) and using pore-formi...

V. S. Vladimirov; E. S. Lukin; N. A. Popova; M. A. Ilyukhin…

2011-07-01T23:59:59.000Z

84

Ice accretions on high–voltage conductors and insulators and related phenomena  

Science Journals Connector (OSTI)

...short-circuit current of the HVAC system is ca. 28 A at the...knowledge, there is no established standard method for eval- uating the...publications will soon be available. Standard methods facilitate the comparison...various outdoor insulator types. Standards will also allow us to compare...

2000-01-01T23:59:59.000Z

85

Switching Surges and Air Insulation  

Science Journals Connector (OSTI)

...research-article Switching Surges and Air Insulation B. Jones Some thirteen years ago...reduction was noticed in the strength of air insulation when subjected to slowly rising positive...collected in high voltage laboratories. Insulation against switching surges is now seen...

1973-01-01T23:59:59.000Z

86

Engineering Aspects of Heat Transfer in Multilayer Reflective Insulation and Performance of NRC Insulation  

Science Journals Connector (OSTI)

All types of high-performance insulation, often referred to as “superinsulation,” ... Carbide Corporation in October, 1958, or the insulation proposed and tested in 1951 by P. ... D. Little, Inc., or the NRC insulation

M. P. Hnilicka

1960-01-01T23:59:59.000Z

87

A COMPARISON OF THE COMMUNITY PLANNING IMPLICATIONS FOR PASSIVE SOLAR, EARTH SHELTERED AND CONVENTIONAL HIGHLY INSULATED HOUSING DEVELOPMENTS  

Science Journals Connector (OSTI)

ABSTRACT Earth sheltered, passive solar and conventional highly-insulated houses have large variations in their need for solar exposure to maintain a high energy efficiency. They also have inherent implications for the minimum spacing of units under various assumed site conditions. The effect of full solar exposure on maximum densities of prototypical earth sheltered and solar developments is presented and compared to non-solar conventional construction. The effect of ground slope angles on the densities attainable is also included in the discussion.

John C. Carmody; Raymond L. Sterling

1982-01-01T23:59:59.000Z

88

Vacuum insulation of the high energy negative ion source for fusion application  

SciTech Connect (OSTI)

Vacuum insulation on a large size negative ion accelerator with multiple extraction apertures and acceleration grids for fusion application was experimentally examined and designed. In the experiment, vacuum insulation characteristics were investigated in the JT-60 negative ion source with >1000 apertures on the grid with the surface area of {approx}2 m{sup 2}. The sustainable voltages varied with a square root of the gap lengths between the grids, and decreased with number of the apertures and with the surface area of the grids. Based on the obtained results, the JT-60SA (super advanced) negative ion source is designed to produce 22 A, 500 keV D{sup -} ion beams for 100 s.

Kojima, A.; Hanada, M.; Inoue, T.; Watanabe, K.; Taniguchi, M.; Kashiwagi, M.; Umeda, N.; Tobari, H. [Japan Atomic Energy Agency, Naka, Ibaraki 311-0193 (Japan); Hilmi, A.; Kobayashi, S.; Yamano, Y. [Saitama University, Saitama, Saitama-ken, 338-8570 (Japan); Grisham, L. R. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

2012-02-15T23:59:59.000Z

89

Plasma Magnetic Insulation  

Science Journals Connector (OSTI)

29 June 1987 research-article Plasma Magnetic Insulation B. B. Kadomtsev Theoretically the strong magnetic field of a tokamak should confine electrons and ions in a high-temperature...

1987-01-01T23:59:59.000Z

90

Electrical insulation  

Science Journals Connector (OSTI)

n....Material with very low conductivity, which surrounds active electrical devices. Common electrical insulation chemicals are fluorine-containing polymers.

2007-01-01T23:59:59.000Z

91

Electrical Insulation  

Science Journals Connector (OSTI)

n...Material with very low conductivity which surrounds active electrical devices. Common electrical insulation chemicals are fluorine-containing polymers (Dissado LA...

Jan W. Gooch

2011-01-01T23:59:59.000Z

92

Insulation Materials | Department of Energy  

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

Materials Materials Insulation Materials May 30, 2012 - 10:08am Addthis Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Blown-in fiberglass insulation thoroughly fills the stud cavities in this home. | Photo courtesy of Bob Hendron, NREL. Blown-in fiberglass insulation thoroughly fills the stud cavities in this home. | Photo courtesy of Bob Hendron, NREL. Rigid foam board adds R-value to this wall in a Florida home. | Photo courtesy of FSEC/IBACOS. Rigid foam board adds R-value to this wall in a Florida home. | Photo

93

Insulation fact sheet  

SciTech Connect (OSTI)

Electricity bills, oil bills, gas bills - all homeowners pay for one or more of these utilities, and wish they paid less. Often many of us do not really know how to control or reduce our utility bills. We resign ourselves to high bills because we think that is the price we have to pay for a comfortable home. We encourage our children to turn off the lights and appliances, but may not recognize the benefits of insulating the attic. This publication provides facts relative to home insulation. It discusses where to insulate, what products to use, the decision making process, installation options, and sources of additional information.

NONE

1997-08-01T23:59:59.000Z

94

Method for minimizing contaminant particle effects in gas-insulated electrical apparatus  

DOE Patents [OSTI]

Electrical breakdown of a gas insulator in high voltage apparatus is prevented by placing an electrical insulative coating on contaminant particles in the gas insulator.

Pace, M.O.; Adcock, J.L.; Christophorou, L.G.

1984-01-01T23:59:59.000Z

95

Impact of Different Glazing Systems on Cooling Load of a Detached Residential Building at Bhubaneswar, India  

E-Print Network [OSTI]

assuming north?south and east?west facings of the building. For each orientation, different types of glazing (Table 4) and different glazing areas are considered. The first case(the base case) assumes a single clear glazing with a window-to-wall ratio.... Floor plan of the east-west oriented residential building taken for study (not to scale) Table 1. The zones basic characteristics Zone Area (m2) Volume (m3) Occupancy (people/m2) Venti- lation (l/s) HVAC system Bed room1 15.12 52...

Sahoo, P. K.; Sahoo, R.

2010-01-01T23:59:59.000Z

96

Magnetic insulation  

Science Journals Connector (OSTI)

... by Winterberg1, led me to look into the background of the idea of 'magnetic insulation'. The purpose of this letter is to point out that the scheme described in ... were presented earlier in a longer article2. In that article he suggested that 'magnetic insulation' might make possible a transformer for 109 V. A year later the same objections ...

JOHN P. BLEWETT

1974-06-28T23:59:59.000Z

97

Laser Glazing of Railroad Rail Materials Procedure R & D Zhiyue Xu and Claude B. Reed  

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

Glazing of Railroad Rail Materials Glazing of Railroad Rail Materials Procedure R & D Zhiyue Xu and Claude B. Reed Laser Applications Laboratory Argonne National Laboratory Argonne, Illinois November 15, 2001 Outline * R & D work on further improving ANL's laser glazing technique - Goals ----faster & better surface finish * Preliminary feasibility study on using laser to heal the service-cracked rails Experimental Setup 1.6 kW Pulsed Nd:YAG laser with fiber-optic beam delivery & optics Nitrogen @ 50 CFH as shielding gas Rotational stage A wheel being laser-glazed Recent Procedure R&D Focusing on Increasing Processing Speed and Smoothening Surface Smoother surface by avoiding deep surface melting by lower laser power density and faster feeding. Old procedure New procedure Faster processing speed by

98

Integrated cost-estimation methodology to support high-performance building design  

Science Journals Connector (OSTI)

Glazing U-factor, glazing solar heat gain coefficient (SHGC), glazing visible transmittance (vt), window...

Prasad Vaidya; Lara Greden; David Eijadi; Tom McDougall; Ray Cole

2009-02-01T23:59:59.000Z

99

Transport phenomena in intrinsic semiconductors and insulators at high current densities: Suppression of the broken neutrality drift  

SciTech Connect (OSTI)

It is shown that, in addition to the diffusion and broken neutrality drift (BND) modes well-known for insulators and very lightly doped semiconductors, the quasineutral drift (QND) mode is possible. The transition from the BND to QND mode is accompanied by the appearance of a portion with a very sharp current rise in the current-voltage characteristic. This effect is observed in a new type of semiconductor detectors (CIDs, Current Injected Detectors) of high-intensity neutron and proton radiation, suggested, in particular, for Large Hadron Collider. The effect is unambiguously attributed now to the presence of radiation-induced deep centers in a semiconductor. It is shown, however, in this paper that the effect of a very sharp rise in current upon a slight increase in voltage is even possible when there are no deep centers. An equation adequately describing the possible transport modes in intrinsic semiconductors and insulators is derived. The results of an analytical study are confirmed by an adequate simulation.

Mnatsakanov, T. T.; Tandoev, A. G.; Yurkov, S. N. [All-Russia Electrotechnical Institute, Krasnokazarmennaya 12, 111250 Moscow (Russian Federation)] [All-Russia Electrotechnical Institute, Krasnokazarmennaya 12, 111250 Moscow (Russian Federation); Levinshtein, M. E. [The Ioffe Physico-Technical Institute, Politekhnicheskaya 26, 194021 St. Petersburg (Russian Federation)] [The Ioffe Physico-Technical Institute, Politekhnicheskaya 26, 194021 St. Petersburg (Russian Federation)

2013-08-14T23:59:59.000Z

100

Numerical investigation of the physical model of a high-power electromagnetic wave in a magnetically insulated transmission line  

SciTech Connect (OSTI)

An efficient numerical code for simulating the propagation of a high-power electromagnetic pulse in a vacuum transmission line is required to study the physical phenomena occurring in such a line, to analyze the operation of present-day megavolt generators at an {approx}10-TW power level, and to design such new devices. The main physical theoretical principles are presented, and the stability of flows in the near-threshold region at the boundary of the regime of magnetic self-insulation is investigated based on one-dimensional telegraph equations with electron losses. Numerical (difference) methods-specifically, a method of characteristics and a finite-difference scheme-are described and their properties and effectiveness are compared by analyzing the high-frequency modes.

Samokhin, A. A. [Troitsk Institute for Innovation and Fusion Research (Russian Federation)

2010-02-15T23:59:59.000Z

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


101

Cooper Pairs in Insulators?!  

ScienceCinema (OSTI)

Nearly 50 years elapsed between the discovery of superconductivity and the emergence of the microscopic theory describing this zero resistance state. The explanation required a novel phase of matter in which conduction electrons joined in weakly bound pairs and condensed with other pairs into a single quantum state. Surprisingly, this Cooper pair formation has also been invoked to account for recently uncovered high-resistance or insulating phases of matter. To address this possibility, we have used nanotechnology to create an insulating system that we can probe directly for Cooper pairs. I will present the evidence that Cooper pairs exist and dominate the electrical transport in these insulators and I will discuss how these findings provide new insight into superconductor to insulator quantum phase transitions. 

James Valles

2010-01-08T23:59:59.000Z

102

Crustation insulation  

Science Journals Connector (OSTI)

... nervous systems by wrapping it in multilayered sheaths of a fatty material called myelin. This insulation allows electrical nerve impulses to be conveyed over long distances much more rapidly. Considering ...

Eleanor Lawrence

1999-04-15T23:59:59.000Z

103

insulation blocking  

Science Journals Connector (OSTI)

In a cable, such as a coaxial cable, a paired cable, a twisted pair, or a fiber optic cable, the ability of the outer covering, such as a jacket, sheath, or insulation, to withstand elevated temperatures without ...

2001-01-01T23:59:59.000Z

104

Large Fermi energy modulation in graphene transistors with high-pressure O{sub 2}-annealed Y{sub 2}O{sub 3} topgate insulators  

SciTech Connect (OSTI)

We demonstrate a considerable suppression of the low-field leakage through a Y{sub 2}O{sub 3} topgate insulator on graphene by applying high-pressure O{sub 2} at 100?atm during post-deposition annealing (HP-PDA). Consequently, the quantum capacitance measurement for the monolayer graphene reveals the largest Fermi energy modulation (E{sub F}?=??0.52?eV, i.e., the carrier density of ?2?×?10{sup 13}?cm{sup ?2}) in the solid-state topgate insulators reported so far. HP-PDA is the robust method to improve the electrical quality of high-k insulators on graphene.

Kanayama, Kaoru; Nagashio, Kosuke, E-mail: nagashio@material.t.u-tokyo.ac.jp; Nishimura, Tomonori; Toriumi, Akira [Department of Materials Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)

2014-02-24T23:59:59.000Z

105

Multipurpose characterization of glazing systems with silica aerogel: In-field experimental analysis of thermal-energy, lighting and acoustic performance  

Science Journals Connector (OSTI)

Abstract Thermal-energy, acoustic and lighting performance of innovative glazing systems with aerogel inclusion is evaluated through in-field experiments. The study is carried out by monitoring two dedicated prototype buildings located in central Italy, and the consistency of results with in-lab analyses is investigated. Analyses showed that aerogel can decrease energy consumption for heating by up to 50% in winter, and its capability to keep the thermal zone warmer even several days after that the heating system is switched off. Acoustic analyses confirmed in-lab measurements, showing aerogel capability to increase the façade acoustic insulation index by 3 dB. Lighting analyses showed aerogel effect to lower the daily average illuminance level by about 10% during sunny days. In cloudy weather conditions, with low level of solar radiation and indoor illuminance, the effect was relatively higher. In those cases when windows include shading elements such as protruding roof or deep window pad, aerogel effect was not clearly identified through continuous monitoring. The results of this integrated in-field experimental campaign showed that aerogel filled glazing cameras represent effective and innovative solutions for energy saving in winter, useful for improving acoustic façade performance with limited penalties in terms of daylighting.

Franco Cotana; Anna Laura Pisello; Elisa Moretti; Cinzia Buratti

2014-01-01T23:59:59.000Z

106

The Insulation of Electric Machines  

Science Journals Connector (OSTI)

... the necessity of high potential differences have within recent years quite altered our ideas about insulation. Electrical engineers have come to view the subject from a different standpoint on account ... exceeding, their working limits of temperature, and the futility of baking to obtain temporary insulation unless moisture be permanently excluded. When dealing with the influence of brush discharge mention ...

ERNEST WILSON

1905-06-15T23:59:59.000Z

107

Insulation | Department of Energy  

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

Insulation Insulation Insulation Where to Insulate Learn where to insulate in a home to save money and improve comfort. Read more Insulation Get the facts about how insulation works. Read more Estimate the Payback Period for Insulation Adding insulation to your home will likely have an attractive payback. Read more You can reduce your home's heating and cooling costs through proper insulation and air sealing techniques. These techniques will also make your home more comfortable. Any air sealing efforts will complement your insulation efforts, and vice versa. Proper moisture control and ventilation strategies will improve the effectiveness of air sealing and insulation, and vice versa. Featured Insulation for New Home Construction Planning carefully for insulation results in reduced utility bills and superior comfort during the life of the home. In this house, raised heel trusses accommodate R-60 insulation. | Credit: Paul Norton, NREL.

108

Thermal conductivity of the insulation system of the stator winding of a high-power turbogenerator with air cooling  

Science Journals Connector (OSTI)

Values of the thermal-conductivity coefficient of specimens of the frame insulation manufactured from pre- and unimpregnated, mica-containing tapes are determined. It is established that the tape structure, te...

A. Sh. Azizov; A. M. Andreev; A. M. Kostel’ov…

2009-03-01T23:59:59.000Z

109

A cost and benefit analysis of future end-of-life vehicle glazing recycling in France: a  

E-Print Network [OSTI]

1 A cost and benefit analysis of future end-of- life vehicle glazing recycling in France-of-life vehicle glazing recycling in France: a system dynamics approach," Resources, Conservation and Recycling, published in "Resources, Conservation and Recycling (2013) xx" DOI : 10.1016/j.resconrec.2013.02.013 #12;2 1

Paris-Sud XI, Université de

110

Dielectric-wall linear accelerator with a high voltage fast rise time switch that includes a pair of electrodes between which are laminated alternating layers of isolated conductors and insulators  

DOE Patents [OSTI]

A dielectric-wall linear accelerator is improved by a high-voltage, fast rise-time switch that includes a pair of electrodes between which are laminated alternating layers of isolated conductors and insulators. A high voltage is placed between the electrodes sufficient to stress the voltage breakdown of the insulator on command. A light trigger, such as a laser, is focused along at least one line along the edge surface of the laminated alternating layers of isolated conductors and insulators extending between the electrodes. The laser is energized to initiate a surface breakdown by a fluence of photons, thus causing the electrical switch to close very promptly. Such insulators and lasers are incorporated in a dielectric wall linear accelerator with Blumlein modules, and phasing is controlled by adjusting the length of fiber optic cables that carry the laser light to the insulator surface. 12 figs.

Caporaso, G.J.; Sampayan, S.E.; Kirbie, H.C.

1998-10-13T23:59:59.000Z

111

Application of High-Performance Aerogel Insulating Materials (Analysis & Test Results)  

SciTech Connect (OSTI)

The NCSX stellarator core design is built around a 3-period, highly shaped plasma with an assembly of four magnet systems, the TF coils (TF), the Modular Coils (MC), the PF Coils (PF), and the Trim Coils, that surrounds an all welded Vacuum Vessel (VV). The VV features approximately 100 ports for heating, pumping, diagnostics, and maintenance access. The entire system is surrounded by a cryostat to permit operation of the coils at liquid nitrogen temperature. The VV and coils are assembled in 120 segments. The VV segments must be placed inside the MC by sliding the coils over each end of the vessel subassembly. Installation of the port extensions is done after this operation. They are slipped through access holes in the MC onto port stubs and welded on from inside. Figures 1 & 2 illustrate the assembly of the MC over a VV section and installation of TF and port extensions to complete a sector of the VV.

Goranson, Paul L [ORNL; Freudenberg, Kevin D [ORNL; McGinnis, William Dean [ORNL; Dudek, L. [Princeton Plasma Physics Laboratory (PPPL); Zarnstorff, M. C. [Princeton Plasma Physics Laboratory (PPPL)

2009-01-01T23:59:59.000Z

112

Strained-Si-on-Insulator (SSOI) and SiGe-on-Insulator (SGOI): Fabrication Obstacles and Solutions  

E-Print Network [OSTI]

Strained-Si-on-Insulator (SSOI) and SiGe-on-Insulator (SGOI): Fabrication Obstacles and Solutions-Si and SiGe-on-insulator were fabricated, combining both the benefits of high-mobility strained-Si and SOI) to oxidized handle wafers. Layer transfer onto insulating handle wafers can be accomplished using grind

113

Insulation Monitors Settings Selection  

Science Journals Connector (OSTI)

In the chapter general requirements set to insulation monitors selection in AC and DC networks ... given. Examples of regulations requirements for circuits insulation equivalent resistance are presented. Traditio...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

114

Insulation Resistance Measurement Methods  

Science Journals Connector (OSTI)

A traditional method of insulation resistance measurement in live DC networks is ... of an ammeter is described. Formulas for insulation equivalent resistance calculation are derived with help...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

115

Gas filled panel insulation  

DOE Patents [OSTI]

A structural or flexible highly insulative panel which may be translucent, is formed from multi-layer polymeric material in the form of an envelope surrounding a baffle. The baffle is designed so as to minimize heat transfer across the panel, by using material which forms substantially closed spaces to suppress convection of the low conductivity gas fill. At least a portion of the baffle carries a low emissivity surface for suppression of infrared radiation.

Griffith, Brent T. (Berkeley, CA); Arasteh, Dariush K. (Oakland, CA); Selkowitz, Stephen E. (Piedmont, CA)

1993-01-01T23:59:59.000Z

116

Gas filled panel insulation  

DOE Patents [OSTI]

A structural or flexible highly insulative panel which may be translucent, is formed from multi-layer polymeric material in the form of an envelope surrounding a baffle. The baffle is designed so as to minimize heat transfer across the panel, by using material which forms substantially closed spaces to suppress convection of the low conductivity gas fill. At least a portion of the baffle carries a low emissivity surface for suppression of infrared radiation. 18 figures.

Griffith, B.T.; Arasteh, D.K.; Selkowitz, S.E.

1993-12-14T23:59:59.000Z

117

Fully synthetic taped insulation cables  

DOE Patents [OSTI]

A high voltage oil-impregnated electrical cable with fully polymer taped insulation operable to 765 kV. Biaxially oriented, specially processed, polyethylene, polybutene or polypropylene tape with an embossed pattern is wound in multiple layers over a conductive core with a permeable screen around the insulation. Conventional oil which closely matches the dielectric constant of the tape is used, and the cable can be impregnated after field installation because of its excellent impregnation characteristics.

Forsyth, Eric B. (Brookhaven, NY); Muller, Albert C. (Center Moriches, NY)

1984-01-01T23:59:59.000Z

118

Insulation Fact Sheet  

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

DOE/CE-0180 DOE/CE-0180 2008 Department of Energy Assistant Secretary Energy Efficiency and Renewable Energy Contents: Introduction Why Insulate Your House? How Insulation Works Which Kind of Insulation is Best? What Is an R-Value? Reading the Label Insulation Product Types Insulating a New House Where and How Much Air Sealing Moisture Control and Ventilation Installation Issues Precautions Attics Walls Design Options Crawlspaces and Slabs Advanced Wall Framing Metal Framing Insulating Concrete Forms Massive Walls Structural Insulated Panels External Insulation Finish System Attic Ventilation or a Cathedralized Attic Adding Insulation to an Existing House Where and How Much How Much Insulation Do I Already Have? Air Sealing Moisture Control and Ventilation Insulation Installation, the Retrofit Challenge

119

Investigations of the dynamics and growth of insulator films by high resolution helium atom scattering. Final report, May 1, 1985--April 30, 1997  

SciTech Connect (OSTI)

Over the twelve years of this grant from the U.S. Department of Energy, DE-FG05-85ER45208, the over-reaching aims of this work have been to explore and to attempt to understand the fundamental physics and chemistry of surfaces and interfaces. The instrument we have employed m in this work is high-resolution helium atom scattering (HAS) which we have become even more convinced is an exceptionally powerful and useful tool for surface science. One can follow the evolution of the development and progress of the experiments that we have carried out by the evolution of the proposal titles for each of the four three-year periods. At first, m in 1985-1988, the main objective of this grant was to construct the HAS instrument so that we could begin work on the surface vibrational dynamics of crystalline materials; the title was {open_quotes}Helium Atom-Surface Scattering Apparatus for Studies of Crystalline Surface Dynamics{close_quotes}. Then, as we became more interested m in the growth of films and interfaces the title m in 1988-1991 became {open_quotes}Helium Atom Surface Spectroscopy: Surface Lattice Dynamics of Insulators, Metal and Metal Overlayers{close_quotes}. In 1991-1994, we headed even more m in this direction, and also recognized that we should focus more on insulator materials as very few techniques other than helium atom scattering could be applied to insulators without causing surface damage. Thus, the proposal title became {open_quotes}Helium Atom-Surface Scattering: Surface Dynamics of Insulators, Overlayers and Crystal Growth{close_quotes}. M in the final period of this grant the title ended up {open_quotes}Investigations of the Dynamics and Growth of Insulator Films by High Resolution Helium Atom Scattering{close_quotes} m in 1994-1997. The list of accomplishments briefly discussed in this report are: tests of the shell model; multiphoton scattering; physisorbed monolayer films; other surface phase transitions; and surface magnetic effects.

Safron, S.A.; Skofronick, J.G.

1997-07-01T23:59:59.000Z

120

International Symposium on Daylighting Buildings (IEA SHC TASK 31) Integrating Automated Shading and Smart Glazings with Daylight  

E-Print Network [OSTI]

technologies on the market today. The challenge of controlling solar gain and managing daylight, view and glare systems and in the other we explore the use of electrochromic glazings. Each study involves both

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


121

Exploring the possibility of low temperature glazing in faience from the Djoser Step Pyramid through compositional analysis  

E-Print Network [OSTI]

Egyptian faience, a glazed, non-clay based ceramic material, is found throughout Egypt in a time range pre-dating the Predynastic Period (5500 - 3100 BCE) and extending well beyond the Roman Period (30 BCE - 641 CE). One ...

Whisenant, Lawrence A

2012-01-01T23:59:59.000Z

122

Silicon-on-insulator-based high-voltage, high-temperature integrated circuit gate driver for silicon carbide-based power field effect transistors  

SciTech Connect (OSTI)

Silicon carbide (SiC)-based field effect transistors (FETs) are gaining popularity as switching elements in power electronic circuits designed for high-temperature environments like hybrid electric vehicle, aircraft, well logging, geothermal power generation etc. Like any other power switches, SiC-based power devices also need gate driver circuits to interface them with the logic units. The placement of the gate driver circuit next to the power switch is optimal for minimising system complexity. Successful operation of the gate driver circuit in a harsh environment, especially with minimal or no heat sink and without liquid cooling, can increase the power-to-volume ratio as well as the power-to-weight ratio for power conversion modules such as a DC-DC converter, inverter etc. A silicon-on-insulator (SOI)-based high-voltage, high-temperature integrated circuit (IC) gate driver for SiC power FETs has been designed and fabricated using a commercially available 0.8--m, 2-poly and 3-metal bipolar-complementary metal oxide semiconductor (CMOS)-double diffused metal oxide semiconductor (DMOS) process. The prototype circuit-s maximum gate drive supply can be 40-V with peak 2.3-A sourcing/sinking current driving capability. Owing to the wide driving range, this gate driver IC can be used to drive a wide variety of SiC FET switches (both normally OFF metal oxide semiconductor field effect transistor (MOSFET) and normally ON junction field effect transistor (JFET)). The switching frequency is 20-kHz and the duty cycle can be varied from 0 to 100-. The circuit has been successfully tested with SiC power MOSFETs and JFETs without any heat sink and cooling mechanism. During these tests, SiC switches were kept at room temperature and ambient temperature of the driver circuit was increased to 200-C. The circuit underwent numerous temperature cycles with negligible performance degradation.

Tolbert, Leon M [ORNL; Huque, Mohammad A [ORNL; Blalock, Benjamin J [ORNL; Islam, Syed K [ORNL

2010-01-01T23:59:59.000Z

123

Multiple density layered insulator  

DOE Patents [OSTI]

A multiple density layered insulator for use with a laser is disclosed wh provides at least two different insulation materials for a laser discharge tube, where the two insulation materials have different thermoconductivities. The multiple layer insulation materials provide for improved thermoconductivity capability for improved laser operation.

Alger, Terry W. (Tracy, CA)

1994-01-01T23:59:59.000Z

124

Spectral effects on the transmittance, solar heat gain, and performance rating of glazing systems  

Science Journals Connector (OSTI)

This study investigates the potential changes in Solar Heat Gain Coefficient (SHGC) and Visible Transmittance (VT) ratings of vertical or tilted glazing systems that would result from a deliberate change in the reference spectrum used as Spectral Weighting Function (SWF). This SWF is necessary to evaluate broadband-average optical properties from their spectral values, and obtain the desired rating of such bulk properties. The \\{SWFs\\} currently specified by rating institutions in Europe and North America for SHGC and VT are now outdated, and their inadequacies are discussed. Six potential replacements, which have been recently adopted by ASTM are described, including three direct irradiance spectra and three global irradiance spectrum incident on tilted surfaces of various tilts (20°, 37° and 90°). Some of these spectra have been tailored for use in building energy applications, including Building-Integrated Photovoltaics (BIPV). The effect of tilt on the U-factor and hence SHGC of glazing systems used for skylights on roofs is discussed, using a representative dataset of 37 glazing system specimens. The spectral effects on SHGC induced by a change in the current North American SWF are also obtained for this dataset, and show small to moderate deviations from current ratings (?2% to +7% for windows, and ?3% to +11% for skylights). The variations in VT are within ±2% for most glazing systems. To remove the current inconsistency in the \\{SWFs\\} used for SHGC and VT, it is recommended that a single SWF be used for both properties. For improved accuracy and reliance on active standards, it is also recommended that the SWF for SHGC and VT be either one of the two recent ASTM G197-08 global irradiance spectra, depending on application (incidence on a vertical surface for window applications, and incidence on a 20°-tilted surface for skylight applications). No change in colorimetric calculations (based on the D65 illuminant) is recommended, however.

Christian A. Gueymard; William C. duPont

2009-01-01T23:59:59.000Z

125

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

E-Print Network [OSTI]

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. ...

Marge, Arlene Lanciani

1991-01-01T23:59:59.000Z

126

Superconducting Topological Insulators  

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

Superconducting Topological Insulators Print Superconducting Topological Insulators Print Three-dimensional topological insulators (TIs), discovered experimentally in 2007-2009 by a Princeton-ALS collaboration, are a promising platform for developing the next generation of electronics. Electrons within one nanometer of a TI's surface move at high speeds in a "light-like" fashion. The quantum interactions that generate these electronic states cause individual electrons to be spin polarized even at room temperature and to strongly resist scattering from defects, naturally achieving some of the most desirable traits for computing components and next-generation "spintronics" technologies. More recent angle-resolved photoemission spectroscopy (ARPES) studies performed at ALS Beamlines 10.0.1 and 12.0.1 by the same collaboration have paved a way for these novel material properties to be taken even further. Their studies showed that by doping the TI, bismuth selenide, with copper, it's possible to make the topologically ordered electrons superconducting, dropping electrical resistance in the surface states all the way to zero.

127

Superconducting Topological Insulators  

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

Superconducting Topological Insulators Print Superconducting Topological Insulators Print Three-dimensional topological insulators (TIs), discovered experimentally in 2007-2009 by a Princeton-ALS collaboration, are a promising platform for developing the next generation of electronics. Electrons within one nanometer of a TI's surface move at high speeds in a "light-like" fashion. The quantum interactions that generate these electronic states cause individual electrons to be spin polarized even at room temperature and to strongly resist scattering from defects, naturally achieving some of the most desirable traits for computing components and next-generation "spintronics" technologies. More recent angle-resolved photoemission spectroscopy (ARPES) studies performed at ALS Beamlines 10.0.1 and 12.0.1 by the same collaboration have paved a way for these novel material properties to be taken even further. Their studies showed that by doping the TI, bismuth selenide, with copper, it's possible to make the topologically ordered electrons superconducting, dropping electrical resistance in the surface states all the way to zero.

128

Superconducting Topological Insulators  

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

Superconducting Topological Insulators Print Superconducting Topological Insulators Print Three-dimensional topological insulators (TIs), discovered experimentally in 2007-2009 by a Princeton-ALS collaboration, are a promising platform for developing the next generation of electronics. Electrons within one nanometer of a TI's surface move at high speeds in a "light-like" fashion. The quantum interactions that generate these electronic states cause individual electrons to be spin polarized even at room temperature and to strongly resist scattering from defects, naturally achieving some of the most desirable traits for computing components and next-generation "spintronics" technologies. More recent angle-resolved photoemission spectroscopy (ARPES) studies performed at ALS Beamlines 10.0.1 and 12.0.1 by the same collaboration have paved a way for these novel material properties to be taken even further. Their studies showed that by doping the TI, bismuth selenide, with copper, it's possible to make the topologically ordered electrons superconducting, dropping electrical resistance in the surface states all the way to zero.

129

Building America Webinar: High Performance Enclosure Strategies: Part II, New Construction- August 13, 2014- Cladding Attachment Over Thick Exterior Rigid Insulation  

Broader source: Energy.gov [DOE]

This presentation, Cladding Attachment Over Thick Rigid Exterior Insulation, was delivered at the Building America webinar on August 13, 2014.

130

Insulation | Department of Energy  

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

Insulation Insulation Insulation May 30, 2012 - 9:14am Addthis Spray foam insulation fills the nooks and crannies in the walls of this energy-efficient Florida home. | Photo courtesy of FSEC/IBACOS. Spray foam insulation fills the nooks and crannies in the walls of this energy-efficient Florida home. | Photo courtesy of FSEC/IBACOS. Foam core structural insulated panels are built in a factory, shipped to the jobsite, and assembled. | Photo courtesy of Michael Baechler. Foam core structural insulated panels are built in a factory, shipped to the jobsite, and assembled. | Photo courtesy of Michael Baechler. Spray foam insulation fills the nooks and crannies in the walls of this energy-efficient Florida home. | Photo courtesy of FSEC/IBACOS. Foam core structural insulated panels are built in a factory, shipped to the jobsite, and assembled. | Photo courtesy of Michael Baechler.

131

Transport properties in the vicinity of Mott insulators  

E-Print Network [OSTI]

Understanding the states in the vicinity of the Mott insulator is crucial to understanding both the physics of the transition between a Mott insulating phase and a metallic phase and the physics of the cuprate high-temperature ...

Nave, Cody Patrick, 1980-

2007-01-01T23:59:59.000Z

132

Reduction in Vehicle Temperatures and Fuel Use from Cabin Ventilation, Solar-Reflective Paint, and a New Solar-Reflective Glazing  

SciTech Connect (OSTI)

An analysis to determine the impact of reducing the thermal load on a vehicle using solar-reflective paint and glazing.

Rugh, J.; Chaney, L.; Meyer, J.; Rustagi, M.; Olson, K.; Kogler, R.

2007-05-01T23:59:59.000Z

133

ITER Central Solenoid Coil Insulation Qualification  

SciTech Connect (OSTI)

An insulation system for ITER Central Solenoid must have sufficiently high electrical and structural strength. Design efforts to bring stresses in the turn and layer insulation within allowables failed. It turned out to be impossible to eliminate high local tensile stresses in the winding pack. When high local stresses can not be designed out, the qualification procedure requires verification of the acceptable structural and electrical strength by testing. We built two 4x4 arrays of the conductor jacket with two options of the CS insulation and subjected the arrays to 1.2 million compressive cycles at 60 MPa and at 76 K. Such conditions simulated stresses in the CS insulation. We performed voltage withstand tests and after end of cycling we measured the breakdown voltages between in the arrays. After that we dissectioned the arrays and studied micro cracks in the insulation. We report details of the specimens preparation, test procedures and test results.

Martovetsky, Nicolai N [ORNL] [ORNL; Mann Jr, Thomas Latta [ORNL] [ORNL; Miller, John L [ORNL] [ORNL; Freudenberg, Kevin D [ORNL] [ORNL; Reed, Richard P [Cryogenic Materials, Inc.] [Cryogenic Materials, Inc.; Walsh, Robert P [Florida State University] [Florida State University; McColskey, J D [National Institute of Standards and Technology (NIST), Boulder] [National Institute of Standards and Technology (NIST), Boulder; Evans, D [Advanced Cryogenic Materials] [Advanced Cryogenic Materials

2010-01-01T23:59:59.000Z

134

ITER CENTRAL SOLENOID COIL INSULATION QUALIFICATION  

SciTech Connect (OSTI)

An insulation system for ITER Central Solenoid must have sufficiently high electrical and structural strength. Design efforts to bring stresses in the turn and layer insulation within allowables failed. It turned out to be impossible to eliminate high local tensile stresses in the winding pack. When high local stresses can not be designed out, the qualification procedure requires verification of the acceptable structural and electrical strength by testing. We built two 4 x 4 arrays of the conductor jacket with two options of the CS insulation and subjected the arrays to 1.2 million compressive cycles at 60 MPa and at 76 K. Such conditions simulated stresses in the CS insulation. We performed voltage withstand tests and after end of cycling we measured the breakdown voltages between in the arrays. After that we dissectioned the arrays and studied micro cracks in the insulation. We report details of the specimens preparation, test procedures and test results.

Martovetsky, N N; Mann, T L; Miller, J R; Freudenberg, K D; Reed, R P; Walsh, R P; McColskey, J D; Evans, D

2009-06-11T23:59:59.000Z

135

d3z2?r2 orbital in high-Tc cuprates: Excitonic spectrum, metal-insulator phase diagram, optical conductivity, and orbital character of doped holes  

Science Journals Connector (OSTI)

The single-site dynamical mean-field approximation is used to solve a model of high-Tc cuprate superconductors, which includes both dx2?y2 and d3z2?r2 orbitals on the Cu as well as the relevant oxygen states. Both T (with apical oxygen) and T? (without apical oxygen) crystal structures are considered. In both phases, inclusion of the d3z2?r2 orbital is found to broaden the range of stability of the charge-transfer insulating phase. For equal charge-transfer energies and interaction strengths, the T? phase is found to be less strongly correlated than the T phase. For both structures, d-d excitons are found within the charge-transfer gap. However, for all physically relevant dopings, the Fermi surface is found to have only one sheet and the admixture of d3z2?r2 into the ground-state wave function remains negligible (<5%). Inclusion of the extra orbitals is found not to resolve the discrepancy between computed and observed conductivity in the insulating state.

Xin Wang; Hung The Dang; Andrew J. Millis

2011-07-29T23:59:59.000Z

136

Insulation Monitoring Systems  

Science Journals Connector (OSTI)

In this chapter there is presented general information on insulation deterioration signalization systems for AC IT networks. Few systems of continuous insulation supervision are described. The old concepts includ...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

137

Appraisal of thermal performance of a glazed office with a solar control coating: Cases in Mexico and Canada  

Science Journals Connector (OSTI)

The use of solar passive strategies such as new solar control coatings on windows for buildings with large glazed areas, have recently become important and helpful tools, mainly because these developments help to reduce heat gains and/or losses through transparent materials, diminishing energy loads, and improving the environment inside buildings. This paper shows an assessment of the thermal performance for an office on top of a building with four different configurations of window glass, and their influence on the indoor conditions. The window glass configurations are: clear glass, glass-film (SnS–CuxS solar control coating), double-glass-film, and double clear glass. The simulations were carried out using weather data from Mexico City and Ottawa, which are a good representation of two extreme weather conditions, in order to assess the thermal behaviour inside offices, such as energy loads, costs for air conditioning, and the influence of interior heat transfer coefficient correlations. The results indicate that the glass-film proves to be the less appropriate configuration due to the high temperatures reached on the film surface, which has an impact on the air temperatures inside the office and contributes to increase the energy consumption. In general, the double glass-film configuration results to be adequate for both climates, nevertheless it shows a better performance for Ottawa than Mexico City, where a simple double clear glass would work the same way.

M. Gijón-Rivera; G. Álvarez; I. Beausoleil-Morrison; J. Xamán

2011-01-01T23:59:59.000Z

138

Process for making ceramic insulation  

DOE Patents [OSTI]

A method is provided for producing insulation materials and insulation for high temperature applications using novel castable and powder-based ceramics. The ceramic components produced using the proposed process offers (i) a fine porosity (from nano-to micro scale); (ii) a superior strength-to-weight ratio; and (iii) flexibility in designing multilayered features offering multifunctionality which will increase the service lifetime of insulation and refractory components used in the solid oxide fuel cell, direct carbon fuel cell, furnace, metal melting, glass, chemical, paper/pulp, automobile, industrial heating, coal, and power generation industries. Further, the ceramic components made using this method may have net-shape and/or net-size advantages with minimum post machining requirements.

Akash, Akash (Salt Lake City, UT); Balakrishnan, G. Nair (Sandy, UT)

2009-12-08T23:59:59.000Z

139

Corrugated outer sheath gas-insulated transmission line  

DOE Patents [OSTI]

A gas-insulated transmission line includes two transmission line sections each of which are formed of a corrugated outer housing enclosing an inner high-voltage conductor disposed therein, with insulating support means supporting the inner conductor within the outer housing and an insulating gas providing electrical insulation therebetween. The outer housings in each section have smooth end sections at the longitudinal ends thereof which are joined together by joining means which provide for a sealing fixed joint.

Kemeny, George A. (Pittsburgh, PA); Cookson, Alan H. (Churchill Boro, PA)

1981-01-01T23:59:59.000Z

140

High performance organic field-effect transistors with ultra-thin HfO{sub 2} gate insulator deposited directly onto the organic semiconductor  

SciTech Connect (OSTI)

We have produced stable organic field-effect transistors (OFETs) with an ultra-thin HfO{sub 2} gate insulator deposited directly on top of rubrene single crystals by atomic layer deposition (ALD). We find that ALD is a gentle deposition process to grow thin films without damaging rubrene single crystals, as results these devices have a negligibly small threshold voltage and are very stable against gate-bias-stress, and the mobility exceeds 1 cm{sup 2}/V s. Moreover, the devices show very little degradation even when kept in air for more than 2 months. These results demonstrate thin HfO{sub 2} layers deposited by ALD to be well suited as high capacitance gate dielectrics in OFETs operating at small gate voltage. In addition, the dielectric layer acts as an effective passivation layer to protect the organic semiconductor.

Ono, S., E-mail: shimpei@criepi.denken.or.jp [Central Research Institute of Electric Power Industry, Komae, Tokyo 201-8511 (Japan); Häusermann, R. [Central Research Institute of Electric Power Industry, Komae, Tokyo 201-8511 (Japan) [Central Research Institute of Electric Power Industry, Komae, Tokyo 201-8511 (Japan); Laboratory for Solid State Physics, ETH Zurich, Zurich 8093 (Switzerland); Chiba, D. [Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan) [Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan); PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama 322-0012 (Japan); Department of Applied Physics, University of Tokyo, Tokyo 113-8656 (Japan); Shimamura, K.; Ono, T. [Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan)] [Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan); Batlogg, B. [Laboratory for Solid State Physics, ETH Zurich, Zurich 8093 (Switzerland)] [Laboratory for Solid State Physics, ETH Zurich, Zurich 8093 (Switzerland)

2014-01-06T23:59:59.000Z

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


141

Topological insulators/Isolants topologiques An introduction to topological insulators  

E-Print Network [OSTI]

Topological insulators/Isolants topologiques An introduction to topological insulators Introduction in the first Brillouin Zone, and their associated energies. In an insulator, an energy gap around the chemical topology, the insulator is called a topological insulator. We introduce this notion of topological order

Paris-Sud XI, Université de

142

Laser perforation of screen vacuum thermal insulation  

Science Journals Connector (OSTI)

This paper presents the results of the process of laser perforation of screen vacuum thermal insulation and shows that it has high efficiency. The use of various types of IR lasers...

Sysoev, V K; Vyatlev, P A; Zakharchenko, A V

2007-01-01T23:59:59.000Z

143

Environmental assessment of thermal insulation composite material  

Science Journals Connector (OSTI)

Of other thermal insulation materials, the foam glass has most similar mechanical properties (PE...2008) and use (structural details exposed to high compressive loads). Therefore, it is (to a certain extend) comp...

Karel Struhala; Zuzana Stránská; Jan P?n?ík…

2014-12-01T23:59:59.000Z

144

A Simple Holographic Insulator  

E-Print Network [OSTI]

We present a simple holographic model of an insulator. Unlike most previous holographic insulators, the zero temperature infrared geometry is completely nonsingular. Both the low temperature DC conductivity and the optical conductivity at zero temperature satisfy power laws with the same exponent, given by the scaling dimension of an operator in the IR. Changing a parameter in the model converts it from an insulator to a conductor with a standard Drude peak.

Mefford, Eric

2014-01-01T23:59:59.000Z

145

A Simple Holographic Insulator  

E-Print Network [OSTI]

We present a simple holographic model of an insulator. Unlike most previous holographic insulators, the zero temperature infrared geometry is completely nonsingular. Both the low temperature DC conductivity and the optical conductivity at zero temperature satisfy power laws with the same exponent, given by the scaling dimension of an operator in the IR. Changing a parameter in the model converts it from an insulator to a conductor with a standard Drude peak.

Eric Mefford; Gary T. Horowitz

2014-06-16T23:59:59.000Z

146

Plastics and Insulation  

Science Journals Connector (OSTI)

... the Institution of Electrical Engineers on March 24 to discuss a paper on “Plastics and Insulation” by L. Hartshorn, N. J. L. Megson and E. Rushton. It ...

1938-04-02T23:59:59.000Z

147

Welcome to the Efficient Windows Collaborative  

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

Glazing Glazing Double-Glazed, Clear Glass This figure illustrates the performance of a typical double-glazed unit with two lites of clear glass. The inner and outer layers of glass are both clear and separated by an air gap. Double glazing, compared to single glazing, cuts heat loss in half due to the insulating air space between the glass layers. In addition to reducing the heat flow, a double-glazed unit with clear glass will allow the transmission of high visible light and high solar heat gain. Double Clear Center of Glass Properties Note: These values are for the center of glass only. They should only be used to compare the effect of different glazing types, not to compare total window products. Frame choice can drastically affect performance. These values represent double glazing with a 1/2" air gap.

148

Tips: Insulation | Department of Energy  

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

Insulation Insulation Tips: Insulation May 2, 2012 - 6:03pm Addthis Where to Insulate. Adding insulation in the areas shown here may be the best way to improve your home's energy efficiency. Insulate either the attic floor or under the roof. Check with a contractor about crawl space or basement insulation. Where to Insulate. Adding insulation in the areas shown here may be the best way to improve your home's energy efficiency. Insulate either the attic floor or under the roof. Check with a contractor about crawl space or basement insulation. Insulation is made from a variety of materials, and it usually comes in four types: rolls and batts, loose-fill, rigid foam, and foam-in-place. Rolls and Batts Rolls and batts -- or blankets -- are flexible products made from mineral

149

Heat transfer in microsphere insulation  

Science Journals Connector (OSTI)

The results of an investigation of heat transfer in a new type of insulation (microsphere insulation) are presented. The effects of the ... gas pressure on the thermal conductivity of the insulation were investig...

R. Wawryk; J. Rafa?owicz

150

Sensors and Actuators A 132 (2006) 139146 MEMS based digital variable capacitors with a high-k dielectric insulator  

E-Print Network [OSTI]

; Digital variable capacitor; High-k dielectric; Charge injection 1. Introduction Radio-frequency (RF]. The other one is the area tuning variable capacitor typically using a comb-drive structure which is normallySensors and Actuators A 132 (2006) 139­146 MEMS based digital variable capacitors with a high

Fleck, Norman A.

151

Glass fiber composition. [for use as thermal insulation  

DOE Patents [OSTI]

The invention relates to a glass fiber composition useful for thermal insulation having a low melting temperature and high chemical durability.

Wolf, G.A.; Kupfer, M.J.

1980-12-19T23:59:59.000Z

152

On the feasibility of colored glazed thermal solar collectors based on thin film interference filters  

Science Journals Connector (OSTI)

Glazed thermal solar collectors, typically equipped with black, optical selective absorber sheets, exhibit good energy conversion efficiency. However, the black color, and sometimes the visibility of tubes and corrugations of the metal sheets, limit the architectural integration into buildings. In order to overcome this drawback, interference filters are considered as a promising approach. Multilayered thin film stacks deposited on the cover glass can produce a colored reflection hiding the black absorber without a great loss of energy. These interference filters are designed and optimized by numerical simulation. Such coatings are deposited by vacuum processes (e.g. magnetron sputtering) and also via the SolGel method. Optical measurements, such as real-time laser-reflectometry and spectrophotometry, are suitable to determine film thicknesses and optical constants of individual layers, and to measure color coordinates and solar transmittance for the multilayer stacks. Advantages and disadvantages of the different coating processes are discussed.

A. Schüler; C. Roecker; J.-L. Scartezzini; J. Boudaden; I.R. Videnovic; R.S.-C. Ho; P. Oelhafen

2004-01-01T23:59:59.000Z

153

Behaviour of Insulation  

Science Journals Connector (OSTI)

... to say in effect, even if I do inadvertently misquote. "The trouble with our insulation is that it is too thick". The lessons at any rate are clear: ... The book Dielectric Relaxation has certainly contributed greatly to our understanding of the behaviour of insulation for a specialist few.

COLIN ADAMSON

1968-12-07T23:59:59.000Z

154

Magnetic insulation (reply)  

Science Journals Connector (OSTI)

... DR WINTERBERG REPLIES: Contrary to Blewett's belief, magnetic insulation has not only been experimentally confirmed2 since I proposed it several years ago1, but ... generators (for example, the MJ Aurora machine). The magnetic field needed for the insulation effect in this case is generated by the strong azimuthal self-induced field of the ...

F. WINTERBERG

1974-06-28T23:59:59.000Z

155

Thermal Insulation of Houses  

Science Journals Connector (OSTI)

... THE Thermal Insulation (Dwellings) Bill which Mr. G. Nabarro introduced into the House of Commons on ... , sponsored by members of both major political parties, extends the principle of the Thermal Insulation (Industrial Buildings) Act of July 1957 to all new dwelling houses built in the ...

1958-02-22T23:59:59.000Z

156

Insulation of Electrical Equipment  

Science Journals Connector (OSTI)

... A VACATION 'school' on the insulation of electrical equipment was held in the Electrical Engineering Department of the Imperial College of ... the universities. The purpose of the course was to consider the factors which are limiting insulation design in the main classes of electrical equipment, and the general principles which should ...

1952-12-13T23:59:59.000Z

157

INSULATION OF HEATING SYSTEMS  

Science Journals Connector (OSTI)

... C. PALLOT gave a Cantor Lecture to the Royal Society of Arts on “Thermal Insulation at Medium Temperature” on November 23 ; the lecture, which included many topics of ... many topics of current interest, has now been published1. In a bulletin on heat insulation issued by the Ministry of Fuel and Power, it was pointed out that "In ...

1943-05-22T23:59:59.000Z

158

Topological insulators and superconductors  

Science Journals Connector (OSTI)

Topological insulators are new states of quantum matter which cannot be adiabatically connected to conventional insulators and semiconductors. They are characterized by a full insulating gap in the bulk and gapless edge or surface states which are protected by time-reversal symmetry. These topological materials have been theoretically predicted and experimentally observed in a variety of systems, including HgTe quantum wells, BiSb alloys, and Bi2Te3 and Bi2Se3 crystals. Theoretical models, materials properties, and experimental results on two-dimensional and three-dimensional topological insulators are reviewed, and both the topological band theory and the topological field theory are discussed. Topological superconductors have a full pairing gap in the bulk and gapless surface states consisting of Majorana fermions. The theory of topological superconductors is reviewed, in close analogy to the theory of topological insulators.

Xiao-Liang Qi and Shou-Cheng Zhang

2011-10-14T23:59:59.000Z

159

Chapter 9 - Pipeline Insulation  

Science Journals Connector (OSTI)

Oilfield pipelines are insulated mainly to conserve heat. The need to keep the product in the pipeline at a temperature higher than the ambient could exist for the following reasons: preventing the formation of gas hydrates, preventing the formation of wax or asphaltenes, enhancing the product flow properties, increasing the cooldown time after shutting down, and meeting other operational/process equipment requirements. On the other hand, in liquefied gas pipelines, such as LNG, insulation is required to maintain the cold temperature of the gas to keep it in a liquid state. This chapter describes the commonly used insulation materials, insulation finish on pipes, and general requirements for insulation of offshore and deepwater pipelines.

Boyun Guo; Shanhong Song; Ali Ghalambor; Tian Ran Lin

2014-01-01T23:59:59.000Z

160

Thermal Insulation of Clothing (Icl)  

Science Journals Connector (OSTI)

The intrinsic insulation of a clothing assembly. The effective insulation of clothing is (Icl + Ia)...2 · W?1] and sometimes in [clo].

2012-01-01T23:59:59.000Z

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


161

Equipment Insulation | Open Energy Information  

Open Energy Info (EERE)

List of Equipment Insulation Incentives Retrieved from "http:en.openei.orgwindex.php?titleEquipmentInsulation&oldid267163" Category: Articles with outstanding TODO tasks...

162

A Study of the Filling of Wall Cavities With Retrofit Wall Insulation.  

SciTech Connect (OSTI)

The Pacific Northwest Power Marketing Agency, the Bonneville Power Administration (BPA), conducted a retrofit wall insulation study to determine the effects of various obstructions within a wall cavity, where voids are likely to occur, and preferred filling methods and material types. The insulation test structure was composed of four 8-foot /times/ 12-foot walls, and was built using standard construction practices. The inside walls were clear plastic glazing, instead of gypsum board, to enable viewing of the filling process. A total of eight tests were performed: four cellulose, two rockwool, and two fiberglass. One- and two-hole filling methods were observed. All insulations were found to perform in the same basic manner with all experiencing the same problem areas. Common installer problems were empty spaces at the tops of cavities and missed cavities, especially above headers. Wiring and lath and plaster consistently caused reduced insulation densities in cavities. The problems with wiring, lath and plaster, and other features in the wall cavities were avoided with the use of a filler tube. The filler tube also provided a more consistent fill along the length of the entire cavity. 2 figs., 3 tabs.

Flores, Joseph A.; Grill, Alan R.

1988-08-01T23:59:59.000Z

163

Insulator for laser housing  

DOE Patents [OSTI]

The present invention provides a heat-resistant electrical insulator adapted for joining laser housing portions, which insulator comprises: an annulus; a channel in the annulus traversing the circumference and length of the housing; at least two ports, each communicating with the channel and an outer surface of the housing; and an attachment for securely attaching each end of the annulus to a laser housing member.

Duncan, David B. (Auburn, CA)

1992-01-01T23:59:59.000Z

164

Insulator for laser housing  

DOE Patents [OSTI]

The present invention provides a heat-resistant electrical insulator adapted for joining laser housing portions, which insulator comprises: an annulus; a channel in the annulus traversing the circumference and length of the housing; at least two ports, each communicating with the channel and an outer surface of the housing; and an attachment for securely attaching each end of the annulus to a laser housing member. 3 figs.

Duncan, D.B.

1992-12-29T23:59:59.000Z

165

Electoral Competition, Political Uncertainty and Policy Insulation  

E-Print Network [OSTI]

Uncertainty and Policy Insulation Horn, Murray. 1995. TheUncertainty and Policy Insulation United States Congress.UNCERTAINTY AND POLICY INSULATION Rui J. P. de Figueiredo,

de Figueiredo, Rui J. P. Jr.

2001-01-01T23:59:59.000Z

166

Training: Mechanical Insulation | Department of Energy  

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

conjunction with the National Insulation Association and the International Association of Heat and Frost Insulators and Allied Workers. Mechanical insulation can play a significant...

167

Super Building Insulation by CO2 Foaming Process Research Project |  

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

Emerging Technologies » Super Building Insulation by CO2 Foaming Emerging Technologies » Super Building Insulation by CO2 Foaming Process Research Project Super Building Insulation by CO2 Foaming Process Research Project The Department of Energy is currently researching the development of building superinsulation through a carbon dioxide (CO2) foaming process. Project Description This project seeks to develop building super insulation through a carbon dioxide foaming process that does not use hydrofluorocarbons (HFCs), and which produces insulation with a high R-value. Project Partners Research is being undertaken between the Department of Energy and The Industrial Science & Technology Network. Project Goals The goal of this project is to develop advanced insulation without HFC, and to achieve a competitive processing cost for CO2 foaming technology.

168

Strength Specifications and Methods of Test for Structural Grades of Cryogenic Balsa Wood Insulation  

Science Journals Connector (OSTI)

Balsa wood is a useful material for cryogenic applications owing to its relatively high structural strength and good thermal insulating properties that increase with decreasing temperatures. Balsa wood insulation

G. E. Padawer

1979-01-01T23:59:59.000Z

169

Fully synthetic taped insulation cables  

DOE Patents [OSTI]

The present invention is a cable which, although constructed from inexpensive polyolefin tapes and using typical impregnating oils, furnishes high voltage capability up to 765 kV, and has such excellent dielectric characteristics and heat transfer properties that it is capable of operation at capacities equal to or higher than presently available cables at a given voltage. This is accomplished by using polyethylene, polybutene or polypropylene insulating tape which has been specially processed to attain properties which are not generally found in these materials, but are required for their use in impregnated electrical cables. Chief among these properties is compatibility with impregnating oil.

Forsyth, E.B.; Muller, A.C.

1983-07-15T23:59:59.000Z

170

LBNL-5800E Thermal Performance Impacts of Center-of- Glass Deflections in Installed Insulating  

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

00E 00E Thermal Performance Impacts of Center-of- Glass Deflections in Installed Insulating Glazing Units R.G. Hart Lawrence Berkeley National Laboratory C.W. Goudey Lawrence Berkeley National Laboratory D.K. Arasteh Lawrence Berkeley National Laboratory D.C. Curcija Lawrence Berkeley National Laboratory Windows and Envelope Materials Group Building Technology and Urban Systems Department Environmental Energy Technologies Division June 2012 To be published in Energy and Buildings DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of

171

Domestic Heating and Thermal Insulation  

Science Journals Connector (OSTI)

... DIGEST 133 of the Building Research Station, entitled "Domestic Heating and Thermal Insulation" (Pp. 7. London : H.M. Stationery Office, 1960. 4insulation, the standard of heating, the ventilation-rate and the length of the heating season ...

1960-09-17T23:59:59.000Z

172

Thermal Insulation for Energy Conservation  

Science Journals Connector (OSTI)

The use of thermal insulations to reduce heat flow across the building ... decades. Materials available for use as building insulation include naturally occurring fibers and particles, man ... plastics, evacuated...

Dr. David W. Yarbrough Ph.D.; PE

2012-01-01T23:59:59.000Z

173

Contaminant trap for gas-insulated apparatus  

DOE Patents [OSTI]

A resinous body is placed in gas-insulated electrical apparatus to remove particulate material from the insulating gas.

Adcock, J.L.; Pace, M.O.; Christophorou, L.G.

1984-01-01T23:59:59.000Z

174

Conjugate heat transfer in a room with a laminated glazing with CuS or CuS–Cu2?xSe  

Science Journals Connector (OSTI)

Abstract A numerical study of the heat transfer in a room with a laminated glazing wall with solar control films is presented. The thermal evaluation was performed on three different configurations of the laminated glazing, with films of CuS–Cu2?xSe or CuS using polyvinyl butyral (PVB) and/or polyethylene terephthalate (PET). For a reference case, a single glazing was evaluated. In order to observe the effect of the conjugate heat transfer on the inside environment of the system, thermal efficiency (?t) was defined; this is the ratio between the total heat flux towards the inside environment regarding the incident solar energy on glazing. The results show that the adhesion of two solar control films at laminated glazing presents better values of thermal efficiency for different values of solar radiation (G) and outside temperature (Text). Also, with the aim of applying these results to other contexts, we computed the values obtained for the solar heat gain coefficient (SHGC). The SHGC was determined for the summer conditions stated in ISO 15099 and ASHRAE. The SHGC results were predicted in a range of 0.360 ? SHGC ? 0.499 and 0.504 ? SHGC ? 0.595 for the conditions of ISO 15099 and ASHRAE, respectively.

J. Xamán; I. Zavala-Guillén; J.O. Aguilar; G. Álvarez; C. López-Mata; J. Arce

2014-01-01T23:59:59.000Z

175

Development of Pre?Preg Ceramic Insulation for Superconducting Magnets  

Science Journals Connector (OSTI)

A new pre?impregnated (pre?preg) ceramic?based electrical insulation system capable of surviving high superconductor reaction temperatures has been developed for use in superconducting magnets. The use of Nb 3Sn superconductors holds great promise for increased magnet performance for high energy physics fusion and other applications. A robust cost?effective manufacturing process is critical to the successful implementation of these coils. Due to its embrittlement after the high temperature reaction cycle Nb 3Sn cable is usually insulated and wound into the coil prior to heat treatment. An earlier ceramic?based insulation system applied using wet?winding or vacuum impregnation has been successfully used in the “wind and react” fabrication process. Use of the new pre?preg system will further simplify the manufacturing process while improving control over the insulation properties. Pre?preg insulation offers several advantages including improved dimensional control of the insulation controllable and uniform fiber to matrix ratio and certainty that the insulation does not infiltrate the superconductor. This paper describes the pre?preg development process processing properties as well as insulation performance data at cryogenic temperatures.

D. E. Codell; P. E. Fabian

2004-01-01T23:59:59.000Z

176

Spectrally selective laminated glazing consisting of solar control and heat mirror coated glass: preparation, characterization and modelling of heat transfer  

Science Journals Connector (OSTI)

In this study, solar control coatings were prepared by sequential depositions of thin films of ZnS (40 nm)–CuS (150 nm) and ZnS (40 nm)–Bi2S3 (75 nm)–CuS (150 nm) from chemical baths on 3 mm thick commercial sheet glass. These were laminated to 3 mm thick clear glass or commercially available SnO2 based heat mirror coating of sheet resistance 15 ? on float glass of 3 mm thickness using a poly(ethylene vinyl acetate), EVA, sheet of 0.36 mm thickness in a vacuum process at 120 °C for 30 min. In total, the thickness of the glazing was 6.35 mm. The glazings possess visible transmittance, weighted for D65 solar spectra and sensitivity of the human eye for daylight vision, of 36% or 14% with solar absorptance of 71% or 78% depending on the coating type, i.e ZnS–CuS or ZnS–Bi2S3–CuS-heat mirror respectively. The solar heat gain coefficient (SHGC) was evaluated for these glazings at exterior temperatures of 15 and 32 °C for an exterior convective heat transfer coefficient (hex) of 6–100 Wm?2 K?1 using a mathematical model. The model predicts the extent of reduction in SHGC through the presence of the heat mirror coating as a function of hex and hence helps to decide on the relative benefit, which may be derived through their use in different locations. Though the deposition technique mentioned here involves longer duration compared with vacuum techniques, it may be developed into a low throughput, low-capital alternate technology for small-scale production.

G. Alvarez; J.J. Flores; J.O. Aguilar; O. Gómez-Daza; C.A. Estrada; M.T.S. Nair; P.K. Nair

2005-01-01T23:59:59.000Z

177

Chapter Four - Cryogenic Insulation Systems for LNG Industries  

Science Journals Connector (OSTI)

Abstract The market for liquefied natural gas (LNG) is growing faster than any other market for energy resources. Since LNG is normally carried by ship at -163°C, the functional requirements of a ship carrying LNG include cryogenic reliability due to thermal cyclic stresses and high thermal insulation performance for safe and efficient transportation of LNG. In order to guarantee the LNG cold temperature around -160°C, high-quality insulation installation in accordance with strict specifications is essential. Cryogenic insulation restricts the inflow of atmospheric heat into the pipe or process equipment, keeping the liquid cold and allowing it to retain its form. This chapter covers fundamentals for thermal insulation for various thermal insulation materials in LNG industries.

Alireza Bahadori

2014-01-01T23:59:59.000Z

178

The Insulator Binding Protein CTCF Positions 20 Nucleosomes around Its Binding Sites across the Human  

E-Print Network [OSTI]

The Insulator Binding Protein CTCF Positions 20 Nucleosomes around Its Binding Sites across occupied by the insulator binding protein CTCF across the human genome. These nucleosomes are highly of CTCF function. Citation: Fu Y, Sinha M, Peterson CL, Weng Z (2008) The Insulator Binding Protein CTCF

Weng, Zhiping

179

Radiative Heat Transfer Analysis of Fibrous Insulation Materials Using the ZonalGEF Method  

E-Print Network [OSTI]

Radiative Heat Transfer Analysis of Fibrous Insulation Materials Using the Zonal­GEF Method Walter to analyze radiative heat transfer in high porosity insulation materials which have a large scattering for LI900, a material used in the insulation tile for the space shuttle. Comparisons are presented

Yuen, Walter W.

180

Bionics in textiles: flexible and translucent thermal insulations for solar thermal applications  

Science Journals Connector (OSTI)

...simultaneously high thermal insulation characteristics. The principle...Development of a translucent thermal insulation (a) Polar bear and its fur...show a hollow structure with foam in the core (figure 2...at the same time an ideal insulation material. In combination...

2009-01-01T23:59:59.000Z

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


181

I  

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

Highly Insulating Glazing Systems using Non-Structural Center Glazing Highly Insulating Glazing Systems using Non-Structural Center Glazing Layers Dariush Arasteh, Howdy Goudey, and Christian Kohler Lawrence Berkeley National Laboratory ABSTRACT Three layer insulating glass units with two low-e coatings and an effective gas fill are known to be highly insulating, with center-of-glass U-factors as low as 0.57 W/m 2 -K (0.10 Btu/h-ft 2 -°F). Such units have historically been built with center layers of glass or plastic which extend all the way through the spacer system. This paper shows that triple glazing systems with non-structural center layers which do not create a hermetic seal at the edge have the potential to be as thermally efficient as standard designs, while potentially removing some of the production and product integration issues that have

182

High-performance facades design strategies and applications in North America and Northern Europe  

E-Print Network [OSTI]

solar heat gain coefficient (SHGC) is typically accompaniedby dividing glazing VT by the SHGC. For projects seeking toprovided that the glazing SHGC meets the project glazing

Zelenay, Krystyna; Perepelitza, Mark; Lehrer, David

2011-01-01T23:59:59.000Z

183

Compact vacuum insulation  

DOE Patents [OSTI]

An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially "point" or "line" contacts with the metal wall sheets. In the case of monolithic spacers that form "line" contacts, two such spacers with the line contacts running perpendicular to each other form effectively "point" contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

1993-01-01T23:59:59.000Z

184

Compact vacuum insulation embodiments  

DOE Patents [OSTI]

An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially "point" or "line" contacts with the metal wall sheets. In the case of monolithic spacers that form "line" contacts, two such spacers with the line contacts running perpendicular to each other form effectively "point" contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

1992-01-01T23:59:59.000Z

185

Compact vacuum insulation  

DOE Patents [OSTI]

An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially point'' or line'' contacts with the metal wall sheets. In the case of monolithic spacers that form line'' contacts, two such spacers with the line contacts running perpendicular to each other form effectively point'' contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

Benson, D.K.; Potter, T.F.

1993-01-05T23:59:59.000Z

186

Experimental and Numerical Examination of the Thermal Transmittance of High  

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

Experimental and Numerical Examination of the Thermal Transmittance of High Experimental and Numerical Examination of the Thermal Transmittance of High Performance Window Frames Title Experimental and Numerical Examination of the Thermal Transmittance of High Performance Window Frames Publication Type Conference Paper LBNL Report Number LBNL-3886E Year of Publication 2010 Authors Gustavsen, Arlid, Goce Talev, Dariush K. Arasteh, Howdy Goudey, Christian Kohler, Sivert Uvsløkk, and Bjørn Petter Jelle Conference Name Thermal Performance of the Exterior Envelopes of Whole Buildings XI International Conference Date Published Dec 5-9, 2010 Conference Location Clearwater Beach, FL Call Number LBNL-3886E Abstract While window frames typically represent 20-30% of the overall window area, their impact on the total window heat transfer rates may be much larger. This effect is even greater in low-conductance (highly insulating) windows which incorporate very low conductance glazings. Developing low-conductance window frames requires accurate simulation tools for product research and development.

187

Development of microwave foaming method for phenolic insulation foams  

Science Journals Connector (OSTI)

Many types of foams are used for thermal insulation in building, frozen food industries and LNG containment systems. Low thermal conductivity, low density and low flammability are required for thermal insulation. Among many foams, phenolic foams are preferred for thermal insulation due to its lower flammability and lower gas generation than any other polymer insulation foams. However, it takes long time to manufacture large size phenolic foams and the environmental regulation limits the use of blowing agents. Urethane foams and polystyrene foams are widely used in spite of their high flammability and toxic gas generation because conventional phenolic foams usually have higher thermal conductivity than expected. In this work, a foaming method for the resole-type phenolic foams was developed using microwave and air instead of blowing agents, and its thermal and mechanical properties were measured. From the measured results, it was found that the phenolic foams developed had low thermal conductivity and low density suitable for insulation foams.

Bu Gi Kim; Dai Gil Lee

2008-01-01T23:59:59.000Z

188

Laser Shearographic Testing of Foam Insulation on Cryogenic Fuel Tanks  

Science Journals Connector (OSTI)

The Centaur is a high-energy rocket used as a second stage to the Atlas launch vehicle. The Centaur is cryogenically fueled, using liquid hydrogen and liquid oxygen, and requires insulation to prevent fuel boi...

Douglas D. Burleigh; James E. Engel…

1993-01-01T23:59:59.000Z

189

Thermal insulations using vacuum panels  

DOE Patents [OSTI]

Thermal insulation vacuum panels are formed of an inner core of compressed low thermal conductivity powders enclosed by a ceramic/glass envelope evaluated to a low pressure.

Glicksman, Leon R. (Lynnfield, MA); Burke, Melissa S. (Pittsburgh, PA)

1991-07-16T23:59:59.000Z

190

Analysis and testing of multilayer and aerogel insulation configurations  

SciTech Connect (OSTI)

Multilayer insulation systems that have robust operational characteristics have long been a goal of many research projects. Such thermal insulation systems may need to offer some degree of structural support and/or mechanical integrity during loss of vacuum scenarios while continuing to provide insulative value to the vessel. Aerogel-based composite blankets can be the best insulation materials in ambient pressure environments; in high vacuum, the thermal performance of aerogel improves by about one order of magnitude. Standard multilayer insulation (MLI) is typically 50% worse at ambient pressure and at soft vacuum, but as much as two or three orders of magnitude better at high vacuum. Different combinations of aerogel blanket and multilayer insulation materials have been tested at the Cryogenics Test Laboratory of NASA Kennedy Space Center. Analysis performed at Oak Ridge National Laboratory showed an importance to the relative location of the MLI and aerogel blankets. Apparent thermal conductivity testing under cryogenicvacuum conditions was performed to verify the analytical conclusion. Tests results are shown to be in agreement with the analysis which indicated that the best performance is obtained with aerogel layers located in the middle of the blanket insulation system.

Johnson, W L [NASA Kennedy Space Center, Kennedy Space Center, Florida; Demko, Jonathan A [ORNL; Fesmire, J. E. [NASA Kennedy Space Center, Kennedy Space Center, Florida

2010-01-01T23:59:59.000Z

191

The Microbiological Deterioration of Rubber Insulation  

Science Journals Connector (OSTI)

...Microbiological Deterioration of Rubber Insulation John T. Blake Donald W. Kitchin Orison...Microbiological Deterioration of Rubber Insulation JOHN T. BLAKE, DONALD W. KITCHIN...By burying wire samples with thin insulation in active soil, the rate of failure...

John T. Blake; Donald W. Kitchin; Orison S. Pratt

1955-01-01T23:59:59.000Z

192

Ground Insulation Measurement in AC IT Systems  

Science Journals Connector (OSTI)

In the chapter there is presented general information on physical nature of network-to-ground insulation. Sense of “insulation equivalent resistance” parameter is explained. A method of insulation resistances-to-...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

193

Compact vacuum insulation  

DOE Patents [OSTI]

Improved compact insulation panel is provided which is comprised of two adjacent metal sheets spaced close together with a plurality of spherical, or other discretely shaped, glass or ceramic beads optimally positioned between the sheets to provide support and maintain the spacing between the metal sheets when the gases there between are evacuated to form a vacuum. These spherical glass beads provide the maximum support while minimizing thermal conductance. In its preferred embodiment; these two metal sheets are textured with ribs or concave protrusions in conjunction with the glass beads to maximize the structural integrity of the panels while increasing the spacing between beads, thereby reducing the number of beads and the number of thermal conduction paths. Glass or porcelain-enameled liners in combination with the glass spacers and metal sidewalls effectively decrease thermal conductivity, and various laminates, including wood, porcelain-enameled metal, and others effectively increase the strength and insulation capabilities of the panels. Also, a metal web is provided to hold the spacers in place, and strategic grooves are shown to accommodate expansion and contraction or shaping of the panels. 35 figs.

Benson, D.K.; Potter, T.F.

1992-10-27T23:59:59.000Z

194

Compact vacuum insulation  

DOE Patents [OSTI]

Improved compact insulation panel is provided which is comprised of two adjacent metal sheets spaced close together with a plurality of spherical, or other discretely shaped, glass or ceramic beads optimally positioned between the sheets to provide support and maintain the spacing between the metal sheets when the gases therebetween are evacuated to form a vacuum. These spherical glass beads provide the maximum support while minimizing thermal conductance. In its preferred embodiment; these two metal sheets are textured with ribs or concave protrusions in conjunction with the glass beads to maximize the structural integrity of the panels while increasing the spacing between beads, thereby reducing the number of beads and the number of thermal conduction paths. Glass or porcelain-enameled liners in combination with the glass spacers and metal sidewalls effectively decrease thermal conductivity, and variious laminates, including wood, porcelain-enameled metal, and others effectively increase the strength and insulation capabilities of the panels. Also, a metal web is provided to hold the spacers in place, and strategic grooves are shown to accommodate expansion and contraction or shaping of the panels.

Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

1992-01-01T23:59:59.000Z

195

A Plastic for Thermal Insulation  

Science Journals Connector (OSTI)

... ft. per in. thickness per 1° F. difference of temperature, so that its insulation properties compare very favourably with slab-cork (0-25 B.TH.U.), glass ... tenth that of slab-cork. This makes it of considerable interest in connexion with thermal insulation during transport. Isoflex is non-porous and non-absorbent, with the result that its ...

1941-04-26T23:59:59.000Z

196

New Technique in Insulation Testing  

Science Journals Connector (OSTI)

... THE new 'Megger' insulation tester, series 3, mark 3, manufactured by Evershed and Vignoles, Ltd., incorporates ... torque to the generator and provides remarkably smooth and consistent operation. In addition to the insulation testing range, the instrument operates over a continuity range 0-100 ohms with a ...

1960-10-22T23:59:59.000Z

197

Excavationless Exterior Foundation Insulation Exploratory  

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

Excavationless Exterior Foundation Excavationless Exterior Foundation Insulation Exploratory Study NorthernSTAR Building America Team Garrett Mosiman Technical Approach The project begins with the concept of an "excavationless" exterior foundation insulation upgrade that is cost-competitive with current methods, and involves little impact to existing landscape and site features. Process: 1. Literature review to establish the building science case for the advantages of exterior foundation insulation vs. interior insulation 2. Presentation and analysis of two exterior, full-excavation exterior insulation upgrades to establish a base case for costs 3. Survey of five typical twin-cities neighborhoods to categorize and quantify typical obstructions 4. Web-based search to identify available materials and technologies that have

198

Solar Decathlon Technology Spotlight: Structural Insulated Panels |  

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

Decathlon Technology Spotlight: Structural Insulated Panels Decathlon Technology Spotlight: Structural Insulated Panels Solar Decathlon Technology Spotlight: Structural Insulated Panels September 20, 2011 - 7:13am Addthis These structural insulated panels consist of foam insulation sandwiched between oriented strand boards. (Courtesy of Michael Bacchler) These structural insulated panels consist of foam insulation sandwiched between oriented strand boards. (Courtesy of Michael Bacchler) Alexis Powers EDITOR'S NOTE: Originally posted on the Solar Decathlon News Blog on September 19, 2011. Editor's Note: This post is one of a series of technology spotlights that introduces common technologies used in U.S. Department of Energy Solar Decathlon team houses. Structural insulated panels (SIPs) are prefabricated structural elements

199

Types of Insulation | Department of Energy  

Energy Savers [EERE]

-- into insulation systems that can include a variety of backings, such as kraft paper, plastic film, polyethylene bubbles, or cardboard, as well as thermal insulation materials....

200

Solar Decathlon Technology Spotlight: Structural Insulated Panels...  

Energy Savers [EERE]

Solar Decathlon Technology Spotlight: Structural Insulated Panels Solar Decathlon Technology Spotlight: Structural Insulated Panels September 20, 2011 - 7:13am Addthis These...

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


201

Multiple layer insulation cover  

DOE Patents [OSTI]

A multiple layer insulation cover for preventing heat loss in, for example, a greenhouse, is disclosed. The cover is comprised of spaced layers of thin foil covered fabric separated from each other by air spaces. The spacing is accomplished by the inflation of spaced air bladders which are integrally formed in the cover and to which the layers of the cover are secured. The bladders are inflated after the cover has been deployed in its intended use to separate the layers of the foil material. The sizes of the material layers are selected to compensate for sagging across the width of the cover so that the desired spacing is uniformly maintained when the cover has been deployed. The bladders are deflated as the cover is stored thereby expediting the storage process and reducing the amount of storage space required.

Farrell, James J. (Livingston Manor, NY); Donohoe, Anthony J. (Ovid, NY)

1981-11-03T23:59:59.000Z

202

Black Mountain Insulation | Open Energy Information  

Open Energy Info (EERE)

Insulation Insulation Jump to: navigation, search Name Black Mountain Insulation Place United Kingdom Sector Carbon Product UK-based manufacturer of sheeps wool insulation which has a low carbon footprint than traditional glassfiber insulation. Website http://www.blackmountaininsula References Black Mountain Insulation Website[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Black Mountain Insulation is a company located in United Kingdom. It was formerly known as Ochre Natural Insulation Company. [2] References ↑ "Black Mountain Insulation Website" ↑ http://www.companiesintheuk.co.uk/ltd/black-mountain-insulation Retrieved from "http://en.openei.org/w/index.php?title=Black_Mountain_Insulation&oldid=391648

203

Insulation Mechanisms of in vivo Biomolecular Circuits Kayzad S. Nilgiriwala, Phillip M. Rivera and Domitilla Del Vecchio  

E-Print Network [OSTI]

Insulation Mechanisms of in vivo Biomolecular Circuits Kayzad S. Nilgiriwala, Phillip M. Rivera,2,3). It has been theoretically shown that a system can be insulated from retroactivity by using high gain, effectively insulating the cycle from retroactivity by downstream DNA targets. Hence, phosphorylation cycles

Del Vecchio, Domitilla

204

Exterior Insulation and Overclad Retrofits  

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

Exterior Insulation & Overclad Exterior Insulation & Overclad Retrofits Residential Energy Efficiency Stakeholder Meeting March 2, 2012 - Austin, TX Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 2  Incredible practical experience:  New construction - nearly a century  Retrofit applications - many decades Exterior Insulation Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 3 1980s ON - a "weird" builder Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 4 1990s ON - a "good" builder Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 5 2000s ON - a "typical" builder Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 6

205

Carpe Diem: Install Insulated Roman Shades | Department of Energy  

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

Carpe Diem: Install Insulated Roman Shades Carpe Diem: Install Insulated Roman Shades Carpe Diem: Install Insulated Roman Shades March 16, 2010 - 11:44am Addthis John Lippert As I mentioned in yesterday's blog, I had insulated window quilts installed on most of my home's windows. I should have bought window quilts for all of our windows, but I refrained from doing so on two downstairs windows to save money (which, in the long run, I didn't). There were window shades already there; they didn't do much from a thermal perspective, but they did provide privacy and room darkening. Well, they need to be replaced now, and I'm looking again at high efficiency thermal window shades. This time I'm considering thermal Roman shades. About a dozen years ago my wife and I went on the Tour of Solar Homes, the local component of the annual National Solar Tour sponsored by the American

206

Identification of building applications for a variable-conductance insulation  

SciTech Connect (OSTI)

Recent experiments have confirmed the feasibility of controllable, reversible disabling of a vacuum insulation panel, which may result in the development of energy-efficient building envelope components. These components could extend the managed energy exchange through the building envelope from about 30% (typical with fenestration systems in commercial buildings), to as much as 90% of the gross wall and roof areas. Further investigation will be required to optimized the thermal response and the magnitude of the R-value swing (from a difference between insulating and conducting insulating values of 4 to as high as a factor of 100). The potential for energy reduction by using the variable-conductance insulation in the building envelope is discussed, and other potential building applications are mentioned.

Potter, T.F. [National Renewable Energy Lab., Golden, CO (United States); Tuluca, A. [Winter (Steven) Associates, Inc., New York, NY (United States)

1992-07-01T23:59:59.000Z

207

Design and analysis of SMES-ETM electrical insulation  

SciTech Connect (OSTI)

The mechanical design and the electrical field analysis of the Ebasco/Westinghouse SMES-ETM coil electrical insulation system are presented. The electrical insulation design of the coil includes the turn to turn, layer to layer, and between the coil to the wall of the liquid helium vessel of the cryostat. A finite element analysis code (WEMAP) was used to obtain detailed electrical field plots of the high electrically stressed regions of the coil. These analytical results were used in conjunction with the experimental data of dielectric breakdown, available in the literature or obtained by in-house testing, to determine the optimum configuration and materials of the insulation spacers. An adequate design safety factor between the insulation capability and the maximum operating electrical stress was adopted to ensure the design integrity under all operating conditions and to allow for the uncertainties of the experimental dielectric breakdown data.

Wu, J.L.; Roach, J.F.; Johnson, D.C.; Dederer, J.T.; Singh, S.K.; Hackworth, D.T. [Westinghouse Science & Technology Center, Pittsburgh, PA (United States)

1994-12-31T23:59:59.000Z

208

Vacuum insulation properties of phenolic foam  

Science Journals Connector (OSTI)

Characteristic properties of phenolic foam as the interstitial material of a vacuum insulation panel are investigated experimentally. For the measurement of effective thermal conductivity, a vacuum guarded hot plate (VGHP) apparatus is used and the conductivity is measured at various vacuum levels. Radiative properties are found using a Fourier transform infrared spectroscopy (FT-IR) device. Solid conductivity is estimated using the porosity of the foam. Effective thermal conductivity at high level of vacuum is measured to be 5 mW/m K which is sum of solid conductivity (2.56 mW/m K) and radiative conductivity (2.44 mW/m K) with 5% of measurement uncertainty. The pore size of the foam is estimated to be 260 ?m using rarefied gas conduction theory. This ensures insulation performance of phenolic foam up to about 10?3 atm. Other practical characteristics of phenolic foam as the VIP core material are also discussed.

Jongmin Kim; Jae-Hyug Lee; Tae-Ho Song

2012-01-01T23:59:59.000Z

209

STATE OF CALIFORNIA INSULATION STAGE CHECKLIST  

E-Print Network [OSTI]

STATE OF CALIFORNIA INSULATION STAGE CHECKLIST CEC-CF-6R-ENV-22 (Revised 05/12) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-ENV-22 Quality Insulation Installation (QII) - Insulation Stage be insulated in a manner that resists thermal bridging of the assembly separating conditioned from

210

Chromatin insulators: lessons from the fly  

E-Print Network [OSTI]

Chromatin insulators: lessons from the fly B.V.Gurudatta and Victor G.Corces Abstract Chromatin insulators are DNA^protein complexes with broad functions in nuclear biology. Drosophila has at least five different types of insulators; recent results suggest that these different insulators share some components

Corces, Victor G.

211

Insulator/Chern-insulator transition in the Haldane model T. Thonhauser and David Vanderbilt  

E-Print Network [OSTI]

Insulator/Chern-insulator transition in the Haldane model T. Thonhauser and David Vanderbilt properties of the Haldane model as the system undergoes its transition from the normal-insulator to the Chern-insulator phase. We find that the density matrix has expo- nential decay in both insulating phases, while having

Vanderbilt, David

212

2658 heat insulation [n] (1)  

Science Journals Connector (OSTI)

constr. (1. Protection against cold provided by cold-shielding materials in outer walls of a building to conserve heat and save energy. 2. In English, the generic term thermal insulation is used for ...

2010-01-01T23:59:59.000Z

213

Insulation products promote thermal efficiency  

SciTech Connect (OSTI)

The judicious use of thermal insulation products in non-residential buildings can provide a number of advantages including increased energy efficiency, lower first costs (by avoiding overside HVAC systems), improved fire safety and better acoustics. Thermal insulation products are those products which retard the flow of heat energy. Materials include glass, plastics, and organic materials such as wood fibers, vermiculite and perlite. Forms range from the familiar batts and blankets of glass fibers to foamed plastic, rigid boards, losse fill and systems combining two or more products, such as polystyrene boards covered with insulating plaster. The R values of selected insulation materials with a cost/sq. ft. of each material at R 10 are given. Costs cover both the material and installation and may vary depending on local conditions.

Chalmers, R.

1985-04-01T23:59:59.000Z

214

Insulators for Switchgear and Busbars  

Science Journals Connector (OSTI)

... export them abroad. They now supply 132 kv. cylindrical type switchgear insulators for the substations of the latest section of the British grid. The disadvantage of the wide base ...

1932-04-23T23:59:59.000Z

215

Insulation For Earth And Space  

Science Journals Connector (OSTI)

According to National Aeronautics & Space Administration scientist Mary Ann B. Meador, before sending people or larger vehicles to Mars, scientists must develop insulating materials to counter the planet’s exotic environment. ...

LAUREN WOLF

2012-09-16T23:59:59.000Z

216

Heat and Sound Insulation Materials  

Science Journals Connector (OSTI)

Of the three heat transfer processes: heat conduction, convection and radiation, convectional heat transfer is reduced by fiber and foam insulation materials1, 2). Air circulation is prevented by compartmentalizi...

Dr. Andre Knop; Dr. Louis A. Pilato

1985-01-01T23:59:59.000Z

217

Variable pressure thermal insulating jacket  

DOE Patents [OSTI]

A device for controlled insulation of a thermal device is disclosed. The device includes a thermal jacket with a closed volume able to be evacuated to form an insulating jacket around the thermal source. A getter material is in communication with the closed volume of the thermal jacket. The getter material can absorb and desorb a control gas to control gas pressure in the volume of the thermal jacket to control thermal conductivity in the thermal jacket. 10 figs.

Nelson, P.A.; Malecha, R.F.; Chilenskas, A.A.

1994-09-20T23:59:59.000Z

218

Typical Clothing Ensemble Insulation Levels for Sixteen Body Parts  

E-Print Network [OSTI]

Thermal Comfort.1994 CLO Insulation Levels For Sixteen Bodya mesh arm chair whose insulation level was measured. FigureExperimental Conditions. CLO Insulation Levels For Sixteen

Lee, Juyoun; Zhang, Hui; Arens, Edward

2013-01-01T23:59:59.000Z

219

GROUND PLANE INSULATION FAILURE IN THE FIRST TPC SUPERCONDUCTING COIL  

E-Print Network [OSTI]

is WIUUTEO GROUND PLANE INSULATION FAILURE IN THE FIRST TPCOn August 27, 1980, an insulation failure occurred dt-ringby a failure uf ground plane insulation. ACKNOWLEDGMENTS The

Green, M.A.

2010-01-01T23:59:59.000Z

220

Vertically aligned gas-insulated transmission line having particle traps at the inner conductor  

DOE Patents [OSTI]

Gas insulated electrical apparatus having first and second conductors separated by an insulating support within an insulating gas environment, and particle traps disposed along the surface of the high potential conductor for trapping and inactivating foreign particles which may be present within the insulating gas medium. Several embodiments of the invention were developed which are particularly suited for vertically aligned gas insulated transmission lines. The particle traps are grooves or cavities formed into the walls of the tubular inner conductor, without extending into the hollow portion of the conductor. In other embodiments, the traps are appendages or insert flanges extending from the inner conductor, with the insulator supports contacting the appendages instead of the inner conductor.

Dale, Steinar J. (Monroeville, PA)

1984-01-01T23:59:59.000Z

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


221

Partial insulation of GdBCO single pancake coils for protection-free HTS power  

Science Journals Connector (OSTI)

The partial insulation winding was examined to ameliorate the slow charge–discharge shown by coils wound without insulation. Single pancake coils of GdBCO coated conductor were wound without insulation, with kapton tape every five turns, and with the full use of kapton tape. They were characterized by charge–discharge, sudden discharge, and over-current testing. The improved charging and discharging and high thermal and electrical stabilities of the partially insulated coil demonstrate its potential for use in HTS power applications.

Y H Choi; S Hahn; J B Song; D G Yang; H G Lee

2011-01-01T23:59:59.000Z

222

Electrical Insulation Paper and Its Physical Properties at Cryogenic Temperatures  

SciTech Connect (OSTI)

Paper is widely used in various engineering applications due to its physical properties and ease of manufacture. As a result paper has been selected or designed as an electrical insulation material for parts and components in high voltage technology. In the current study we select a paper employed in conventional transformers as the electrical insulation material. The potential of this paper is investigated at cryogenic temperatures to determine its physical properties for high temperature superconducting power applications. Dielectric measurements were performed using impedance spectroscopy at a constant frequency. Dielectric breakdown tests were performed on samples at 77 K using a liquid nitrogen bath.

Tuncer, Enis [ORNL] [ORNL; Polyzos, Georgios [ORNL] [ORNL; Sauers, Isidor [ORNL] [ORNL; James, David Randy [ORNL] [ORNL

2011-01-01T23:59:59.000Z

223

Foundation Insulation for Existing Homes  

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

How Do We Retrofit Tough Buildings? Foundation Insulation for Existing Homes Building America Technical Update April 29 & 30, 2013 Patrick H. Huelman Cold Climate Housing Coordinator University of Minnesota Extension Foundation Insulation for Existing Homes * Context - Focused on basements and crawlspaces. - Aimed at cold climates (Climate Zones 6 & 7). - Generally aimed at liquid active walls. * Approach - Managing risks - Current solutions & best practices - Evaluating new approaches * Primary focus is to reduce energy use by 30 to 50% with emphasis on existing homes. * Promote building science solutions using a systems engineering and integrated design approach. * "Do no harm" => must ensure that safety, health, and durability are maintained or improved.

224

Approximating Metal-Insulator Transitions  

E-Print Network [OSTI]

We consider quantum wave propagation in one-dimensional quasiperiodic lattices. We propose an iterative construction of quasiperiodic potentials from sequences of potentials with increasing spatial period. At each finite iteration step the eigenstates reflect the properties of the limiting quasiperiodic potential properties up to a controlled maximum system size. We then observe approximate metal-insulator transitions (MIT) at the finite iteration steps. We also report evidence on mobility edges which are at variance to the celebrated Aubry-Andre model. The dynamics near the MIT shows a critical slowing down of the ballistic group velocity in the metallic phase similar to the divergence of the localization length in the insulating phase.

C. Danieli; K. Rayanov; B. Pavlov; G. Martin; S. Flach

2014-05-06T23:59:59.000Z

225

British Standard Specification for Cable Insulation  

Science Journals Connector (OSTI)

... different types of cables and cords ; and the third, with tests for thickness of insulation and sheath, voltage, ... and sheath, voltage, insulation resistance, spark testing, tinning and armouring. The numerous tables with which the specification ...

1947-02-22T23:59:59.000Z

226

Insulation board and process of making  

DOE Patents [OSTI]

Insulation board capable of bearing a load without significant loss of insulating capacity due to compression, produced by a method wherein the board is made in compliance with specified conditions of time, temperature and pressure.

Nowobilski, Jeffert J. (Orchard Park, NY); Owens, William J. (Kenmore, NY)

1985-01-01T23:59:59.000Z

227

Thermal Insulation at Very Low Temperatures  

Science Journals Connector (OSTI)

24 September 1942 research-article Thermal Insulation at Very Low Temperatures A. H. Cooke R. A. Hull Various methods of insulation have been investigated at temperatures between and 1 degrees K. A simple suspension of artificial silk fibre...

1942-01-01T23:59:59.000Z

228

Systems of Insulation Resistance Continuous Measurement  

Science Journals Connector (OSTI)

In this chapter several methods of continuous measurement of insulation resistance in AC IT systems are described. ... source is explained. Another method of continuous insulation resistance measurement is imposi...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

229

Systems of Insulation Resistance Continuous Measurement  

Science Journals Connector (OSTI)

In this chapter several methods of continuous measurement of insulation resistance in AC IT systems are described. ... source is explained. Another method of continuous insulation resistance measurement is imposi...

Piotr Olszowiec

2014-01-01T23:59:59.000Z

230

Vacuum Insulation for Windows | Department of Energy  

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

evacuated materials-so small that they are invisible-integrated with low-e-coated plastic films. The materials will have better insulation values than vacuum-insulated glass...

231

Basement Insulation Systems- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This Building America Innovations profile describes Building America research on basement insulation, which identifies the wall installation methods and materials that perform best in terms of insulation and water resistance.

232

Degradation of Structural Alloys Under Thermal Insulation  

E-Print Network [OSTI]

Wet thermal insulation may actively degrade steel and stainless steel structures by general corrosion or stress-corrosion cracking. Two different mechanisms of water ingress into insulation are discussed; flooding from external sources...

McIntyre, D. R.

1984-01-01T23:59:59.000Z

233

The influence of different electricity-to-emissions conversion factors on the choice of insulation materials  

Science Journals Connector (OSTI)

Abstract The current practice of building energy upgrade typically uses thick layers of insulation in order to comply with the energy codes. Similarly, the Norwegian national energy codes for residential buildings are moving towards very low U-values for the building envelope. New and more advanced materials, such as vacuum insulation panels (VIPs) and aerogel, have been presented as alternative solutions to commonly used insulation materials. Both aerogel and \\{VIPs\\} offer very high thermal resistance, which is a favourable characteristic in energy upgrading as the same insulation level can be achieved with thinner insulation layers. This paper presents the results of energy use and lifecycle emissions calculations for three different insulation materials (mineral wool, aerogel, and vacuum insulation panels) used to achieve three different insulation levels (0.18 W/m2 K, 0.15 W/m2 K, and 0.10 W/m2 K) in the energy retrofitting of an apartment building with heat pump in Oslo, Norway. As advanced insulation materials (such as VIP and aerogel) have reported higher embodied emissions per unit of mass than those of mineral wool, a comparison of performances had to be based on equivalent wall U-values rather than same insulation thicknesses. Three different electricity-to-emissions conversion factors (European average value, a model developed at the Research Centre on Zero Emission Buildings – ZEB, and the Norwegian inland production of electricity) are used to evaluate the influence of the lifecycle embodied emissions of each insulation alternative. If the goal is greenhouse gas abatement, the appraisal of buildings based solely on their energy use does not provide a comprehensive picture of the performance of different retrofitting solutions. Results show that the use of the conversion factor for Norwegian inland production of electricity has a strong influence on the choice of which of the three insulation alternatives gives the lowest lifecycle emissions.

Nicola Lolli; Anne Grete Hestnes

2014-01-01T23:59:59.000Z

234

Microstructures and properties of laser-glazed plasma-sprayed ZrO{sub 2}-YO{sub 1.5}/Ni-22Cr-10Al-1Y thermal barrier coatings  

SciTech Connect (OSTI)

Thermal barrier coatings (TBCs) consisting of two layers with various yttria contents (ZrO{sub 2}-YO{sub 1.5}/Ni-22Cr-10Al-1Y) were plasma sprayed, and parts of the various specimens were glazed by using a pulsed CO{sub 2} laser. All the specimens were then subjected to furnace thermal cycling tests at 1,100 C; the effect of laser glazing on the durability and failure mechanism of the TBCs was then evaluated. From these results, two models were developed to show the failure mechanism of as-sprayed and laser-glazed TBCs: model A, which is thermal-stress dominant, and model V, which is oxidation-stress dominant. For top coats containing cubic phase, cubic and monoclinic phases, or tetragonal and a relatively larger amount of monoclinic phases, whose degradation is thermal-stress dominant, laser glazing improved the durability of TBCs by a factor of about 2 to 6. Segmented cracks that occurred during glazing proved beneficial for accommodating thermal stress and raising the tolerance to oxidation, which resulted in a higher durability. Thermal barrier coatings with top coats containing tetragonal phase had the highest durability. Degradation of such TBCs resulted mainly from oxidation of the bond coats. For top coats with a greater amount of monoclinic phase, thermal mismatch stress occurred during cooling and detrimentally affected durability.

Tsai, H.L.; Tsai, P.C. [National Taiwan Inst. of Tech., Taipei (Taiwan, Province of China). Dept. of Mechanical Engineering and Technology

1995-12-01T23:59:59.000Z

235

Modeling and simulation of power cable insulation  

Science Journals Connector (OSTI)

The use of power cables for transmission and distribution of electrical power have increased since the advent of suitable, reliable and economical polymeric insulating material; such as cross-linked polyethylene (XLPE). Power cables plays crucial role ... Keywords: cross-linked polyethylene (XLPE), imperfect insulation, local defects, lossy insulation, partial discharge (PD)

K. D. Patil; A. A. Bhole; W. Z. Gandhare

2010-02-01T23:59:59.000Z

236

OPTIMAL INSULATION DISTRIBUTION OVER A CONDUCTING BODY  

Science Journals Connector (OSTI)

......research-article Articles OPTIMAL INSULATION DISTRIBUTION OVER A CONDUCTING BODY...conducted. Over the rest a given amount of insulation is assumed to be spread. Its pointwise...surroundings. Observe that thickening of the insulation at one point involves thinning elsewhere......

MICHAEL BETWICH

1983-02-01T23:59:59.000Z

237

STATE OF CALIFORNIA ENVELOPE INSULATION; ROOFING; FENESTRATION  

E-Print Network [OSTI]

STATE OF CALIFORNIA ENVELOPE ­ INSULATION; ROOFING; FENESTRATION CEC-CF-6R-ENV-01 (Revised 08/09) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-ENV-01 Envelope ­ Insulation; Roofing to be checked to ensure the mandatory measures have been met. Description of Insulation 1. RAISED FLOOR Material

238

Vacuum-insulated catalytic converter  

DOE Patents [OSTI]

A catalytic converter has an inner canister that contains catalyst-coated substrates and an outer canister that encloses an annular, variable vacuum insulation chamber surrounding the inner canister. An annular tank containing phase-change material for heat storage and release is positioned in the variable vacuum insulation chamber a distance spaced part from the inner canister. A reversible hydrogen getter in the variable vacuum insulation chamber, preferably on a surface of the heat storage tank, releases hydrogen into the variable vacuum insulation chamber to conduct heat when the phase-change material is hot and absorbs the hydrogen to limit heat transfer to radiation when the phase-change material is cool. A porous zeolite trap in the inner canister absorbs and retains hydrocarbons from the exhaust gases when the catalyst-coated substrates and zeolite trap are cold and releases the hydrocarbons for reaction on the catalyst-coated substrate when the zeolite trap and catalyst-coated substrate get hot.

Benson, David K. (Golden, CO)

2001-01-01T23:59:59.000Z

239

Development of a Diehard GEM using PTFE insulator substrate  

E-Print Network [OSTI]

We have developed the gas electron multiplier (GEM) using polytetrafluoroethylene (PTFE) insulator substrate (PTFE-GEM). Carbonization on insulator layer by discharges shorts the GEM electrodes, causing permanent breakdown. Since PTFE is hard to be carbonized against arc discharges, PTFE-GEM is expected to be robust against breakdown. Gains as high as 2.6x10^4 were achieved with PTFE-GEM (50 um thick) in Ar/CO2 = 70%/30% gas mixture at V_GEM = 730V. PTFE-GEM never showed a permanent breakdown even after suffering more than 40000 times discharges during the experiment. The result demonstrates that PTFE-GEM is really robust against discharges. We conclude that PTFE is an excellent insulator material for the GEM productions.

Wakabayashi, M; Tamagawa, T; Takeuchi, Y; Aoki, K; Taketani, A; Hamagaki, H

2014-01-01T23:59:59.000Z

240

Theory of the Anomalous Hall Effect in the Insulating Regime  

E-Print Network [OSTI]

, the AHE was revived in recent years by generating many new understandings and phenomena, e.g. spin-Hall effect, topological insulators. The phase diagram of the AHE was shown recently to exhibit three distinct regions: a skew scattering region in the high...

Liu, Xiongjun

2012-10-19T23:59:59.000Z

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


241

Chapter Three - Material Selection for Thermal Insulation  

Science Journals Connector (OSTI)

Abstract This chapter covers the minimum requirements and fundamental concepts relating to the composition, size, dimensions, physical properties, inspection, packaging, and marking of a wide range of thermal insulations for use on pipe and equipment surfaces such as mineral wool insulation, rigid and semi-rigid mineral fiber block and board thermal insulation, mineral blanket and blanket-type pipe insulation, calcium silicate preformed block and pipe section thermal insulation, cellular glass, baked cork, and rigid cellular polyurethane and polyisocyanurate and filler insulation. In addition, vapor barriers, joint sealants, adhesive materials, metallic jacketing, and accessory materials are reviewed. For satisfactory performance, properly installed protective vapor barriers have to be used in low-temperature applications to prevent movement of moisture through or around the insulation towards the colder surface.

Alireza Bahadori

2014-01-01T23:59:59.000Z

242

New and Underutilized Technology: Aerogel Insulation | Department of Energy  

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

Aerogel Insulation Aerogel Insulation New and Underutilized Technology: Aerogel Insulation October 8, 2013 - 2:54pm Addthis The following information outlines key deployment considerations for aerogel insulation within the Federal sector. Benefits Aerogel insulation products displace current insulation materials. The thermal conductivity of aerogel is very low, allowing it to retain insulation properties at a much thinner thickness. Application Aerogel insulation is appropriate for deployment across piping, ducts, and within most building categories. It should be considered in building design, construction, or major renovation. Key Factors for Deployment Aerogel insulations are more expensive than typical insulations. However, they are ideal for special applications, such as translucent wall panels.

243

Net climatic impact of solid foam insulation produced with halocarbon and non-halocarbon blowing agents  

Science Journals Connector (OSTI)

The net climatic effect of increasing the amount of insulation in buildings through the use of halocarbon-blown foam insulation involves three factors: the greenhouse gas emissions associated with the energy used to make the insulation; the climatic impact of leakage of the halocarbon blowing agent from the insulation during its manufacture, use, and at the time of disposal; and the reduction in heating and/or cooling energy use and associated greenhouse gas emissions. Recent studies and assessments leave the impression that the use of halocarbon-blown foam insulation has a strong net positive impact on climate, with the reduction in heating-related emissions being 20–100 times greater than the CO2-equivalent halocarbon emissions. This result applies only to the overall impact of rather modest levels of insulation applied to a pre-existing roof or wall with negligible thermal resistance. It is appropriate to consider the time required for heating-related emission savings to offset halocarbon and manufacturing emissions for the addition of successive increments of insulation—the marginal payback time. For typical blowing agent leakage rates and for insulation levels found in high-performance houses, marginal payback times can be in excess of 100 years using halocarbon blowing agents, but are only 10–50 years using non-halocarbon blowing agents. With a fixed thickness of insulation, the difference in heating energy savings using insulation with different blowing agents is generally only a few per cent, in spite of differences in thermal conductivity of up to 66%. The net savings in CO2-equivalent emissions is larger using non-halocarbon blowing agents, with the relative benefit of using non-halocarbon blowing agents greater the greater the thermal resistance of the envelope element prior to adding foam insulation.

L.D. Danny Harvey

2007-01-01T23:59:59.000Z

244

Variably insulating portable heater/cooler  

DOE Patents [OSTI]

A compact vacuum insulation panel comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber includes apparatus and methods for enabling and disabling, or turning "on" and "off" the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls.

Potter, Thomas F. (Denver, CO)

1998-01-01T23:59:59.000Z

245

Variably insulating portable heater/cooler  

DOE Patents [OSTI]

A compact vacuum insulation panel is described comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber includes apparatus and methods for enabling and disabling, or turning ``on`` and ``off`` the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls. 25 figs.

Potter, T.F.

1998-09-29T23:59:59.000Z

246

Material-controlled dynamic vacuum insulation  

DOE Patents [OSTI]

A compact vacuum insulation panel is described comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber includes apparatus and methods for enabling and disabling, or turning ``on`` and ``off`` the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls. 25 figs.

Benson, D.K.; Potter, T.F.

1996-10-08T23:59:59.000Z

247

Material-controlled dynamic vacuum insulation  

DOE Patents [OSTI]

A compact vacuum insulation panel comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber includes apparatus and methods for enabling and disabling, or turning "on" and "off" the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls.

Benson, David K. (14154 W. First Dr., Golden, CO 80401); Potter, Thomas F. (515 S. Magnolia La., Denver, CO 80224)

1996-10-08T23:59:59.000Z

248

Radiation-controlled dynamic vacuum insulation  

DOE Patents [OSTI]

A compact vacuum insulation panel is described comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber that includes apparatus and methods for enabling and disabling, or turning ``on`` and ``off`` the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls. 25 figs.

Benson, D.K.; Potter, T.F.

1995-07-18T23:59:59.000Z

249

Radiation-controlled dynamic vacuum insulation  

DOE Patents [OSTI]

A compact vacuum insulation panel comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber that includes apparatus and methods for enabling and disabling, or turning "on" and "off" the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls.

Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

1995-01-01T23:59:59.000Z

250

Magnetically insulated transmission line oscillator  

DOE Patents [OSTI]

A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields arfe produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap.

Bacon, Larry D. (Albuquerque, NM); Ballard, William P. (Albuquerque, NM); Clark, M. Collins (Albuquerque, NM); Marder, Barry M. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

251

Conduction of Electricity in Highly Insulating Liquids  

Science Journals Connector (OSTI)

Investigations have been made on the natural conductivity, and on the conductivity induced by gamma-rays in isooctane and liquid oxygen. The characteristics of the two types of conductivity are so very different that it may be concluded that the natural conductivity is not due to stray radiation or to cosmic rays. The curves for the natural conductivity are such that the current increases much faster than the field. Evidence is presented supporting Plumley's theory that the observed conductivity is due to dissociation of the liquids by the field, and against the view that it has a thermionic origin at the cathode, or the view that it is due to radiation. The prediction that the logarithm of the current should be a linear function of the square root of the field is verified. The much larger currents induced by gamma-rays rise at first rapidly and then more slowly in a manner indicating a slow approach toward saturation. The results fit Jaffé's formula satisfactorily.

Chia-Shan Pao

1943-08-01T23:59:59.000Z

252

High Performance Building Facade Solutions PIER Final Project Report  

E-Print Network [OSTI]

such as electrochromic glazings will have major market andsuch as electrochromic glazings will have major market andMarket Program”. These insights were summarized in a document: “Electrochromic

Lee, Eleanor

2011-01-01T23:59:59.000Z

253

Preparation and performance of inorganic heat insulation panel based on sepiolite nanofibers  

Science Journals Connector (OSTI)

High efficiency and low cost thermal insulation energy saving panel materials containing sepiolite nanofibers were developed by means of the synergistic action of inorganic adhesive, curing agent, and hydrogen peroxide. The water soluble sodium silicate ...

Fei Wang, Jinsheng Liang, Haifeng Liu, Xinhui Duan, Qingguo Tang, Huimin Liu

2014-01-01T23:59:59.000Z

254

Types of Insulation | Department of Energy  

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

Types of Insulation Types of Insulation Types of Insulation May 30, 2012 - 11:43am Addthis In existing homes, cellulose (here) or other loose-fill materials can be installed in building cavities through holes drilled (usually) on the exterior of the house. After the installation, the holes are plugged and finish materials replaced. | Photo courtesy of Cellulose Insulation Manufacturers Association. In existing homes, cellulose (here) or other loose-fill materials can be installed in building cavities through holes drilled (usually) on the exterior of the house. After the installation, the holes are plugged and finish materials replaced. | Photo courtesy of Cellulose Insulation Manufacturers Association. Icynene plastic insulation blown into the walls of a home near Denver. Icynene fills cracks and crevices and adheres to the framing. | Photo courtesy of Paul Norton, NREL.

255

Critical insulation thickness for maximum entropy generation  

Science Journals Connector (OSTI)

Critical insulation thickness is known to refer to the insulation thickness that maximises the rate of heat transfer in cylindrical and spherical systems. The same analogy is extended to the rate of entropy generation in the present study. The possible critical insulation thickness that yields a maximum rate of entropy generation is investigated. Entropy generation is related to heat transfer through and temperature distribution within the insulation material. It is found that there exists a critical insulation thickness for maximising the rate of entropy generation that is a function of the Bi number and the surface to ambient temperature ratio. The solution of such critical thickness is formulated analytically for both cylindrical and spherical geometries. It is also found that the critical insulation thickness for the rate of entropy generation does not coincide with that for the rate of heat transfer.

Ahmet Z. Sahin

2012-01-01T23:59:59.000Z

256

Chapter One - Design and Application of Thermal Insulation  

Science Journals Connector (OSTI)

Abstract This chapter covers the minimum requirements for thermal insulation of pipework, vessels, tanks, and other equipment. It is aimed at thermal insulation usage in the oil, gas, petrochemical, and other similar industries mainly for refineries, chemical, petrochemical, and natural gas processing plants. The chapter explains the fundamental requirements for insulation systems, including insulation materials of sufficient quality and thicknesses, weatherproofing, and finishing. Also, there is discussion on the design issues related to thermal insulation, including selection of the thermal insulation system, corrosion under thermal insulation, and the general applications of insulation. In addition, the characteristics and selection of insulation and accessory materials are presented.

Alireza Bahadori

2014-01-01T23:59:59.000Z

257

Insulation and Air Sealing Products and Services | Department of Energy  

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

You are here You are here Home » Insulation and Air Sealing Products and Services Insulation and Air Sealing Products and Services May 30, 2012 - 9:52am Addthis Insulation and Air Sealing Products and Services Use the following links to get product information and locate professional services for insulation and air sealing. Product Information Cellulose Facts Cellulose Insulation Manufacturers Association Information on cellulose insulation, including technical bulletins, special reports, and video Concrete Masonry Units Concrete Homes-Portland Cement Association Describes construction methods that use concrete block systems Cotton Insulation (PDF) Build it Green Information on cotton insulation and a comparison to conventional insulation Expanded Polystyrene Molders Association

258

Impact of the insulation materials’ features on the determination of optimum insulation thickness  

Science Journals Connector (OSTI)

The optimum thickness of the building envelope insulation materials depends on a large number of ... used in the building, and specifically the insulation ones, are included in the process to calculate the optimu...

Jérôme Barrau; Manel Ibanez; Ferran Badia

2014-07-01T23:59:59.000Z

259

Aerogel Impregnated Polyurethane Piping and Duct Insulation  

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

Aerogel Impregnated Polyurethane Aerogel Impregnated Polyurethane Piping and Duct Insulation David M. Hess InnoSense LLC david.hess@innosense.us, 310-530-2011 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: Develop an efficient insulation system that will adhere to housing duct work and pipe structures while conforming to complex geometries. New insulations must increase the R-value of existing materials and be easy to apply or retrofit to existing structures.

260

Floating insulated conductors for heating subsurface formations  

DOE Patents [OSTI]

A heating system for a subsurface formation includes a conduit located in a first opening in the subsurface formation. Three electrical conductors are located in the conduit. A return conductor is located inside the conduit. The return conductor is electrically coupled to the ends of the electrical conductors distal from the surface of the formation. Insulation is located inside the conduit. The insulation electrically insulates the three electrical conductors, the return conductor, and the conduit from each other.

Burns, David; Goodwin, Charles R.

2014-07-29T23:59:59.000Z

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


261

CFC alternatives for thermal insulation foams  

Science Journals Connector (OSTI)

Low density polymeric foam material expanded with chlorofluorocarbon (CFC) blowing agents have found widespread use as highly efficient thermal insulation materials in the construction, refrigeration appliance and transportation industries. The advent of regulations which are reducing the production and consumption of the fully halogenated \\{CFCs\\} for environmental reasons has prompted the development of environmentally acceptable substitutes for the CFC blowing agents. This paper summarizes the physical properties and performance of the leading alternatives for CFC-11, which is used to expand rigid polyurethane and polyisocyanurate foams, and the leading alternatives for CFC-12 which is used to expand extruded polystyrene board foam. Although the alternatives, HCFC-123 and HCFC-141b for CFC-11 and HCFC-142b and HCFC-124 for CFC-12, are not perfect matches from the performance viewpoint, they represent the optimum choice given the constraints on environmental acceptability, toxicity, flammability and performance.

Ian R Shankland

1990-01-01T23:59:59.000Z

262

Thermal insulation by heat resistant polymers.  

E-Print Network [OSTI]

??Internal insulation in a solid rocket motor is a layer of heat-barrier material placed between the internal surface of the case and the propellant. The… (more)

Ahmed, Ashraf Fathy

2009-01-01T23:59:59.000Z

263

Install Removable Insulation on Valves and Fittings  

Broader source: Energy.gov [DOE]

This tip sheet on installing removable insulation on valves and fittings provides how-to advice for improving steam systems using low-cost, proven practices and technologies.

264

Conductivity measurement on thick insulating plaque samples.  

E-Print Network [OSTI]

?? The conductivity is one of the main properties of HVDC cable insulation materials and needs to be evaluated carefully. Since measurement on cables is… (more)

Huldén, Pierre

2014-01-01T23:59:59.000Z

265

Heat insulation layer of polymer composite material  

Science Journals Connector (OSTI)

A new heat insulation layer polymer composite material is developed, within whose composition there is foam polyurethane and basaltoplastic. Results are provided for...

G. P. Ponomareva; A. A. Artemenko; O. M. Sladkov…

2010-05-01T23:59:59.000Z

266

Insulation and Heat Treatment of Bi-2212 Wire for Wind-and-React Coils  

SciTech Connect (OSTI)

Higher Field Magnets demand higher field materials such as Bi-2212 round superconducting wire. The Bi-2212 wire manufacture process depends on the coil fabrication method and wire insulation material. Considering the wind-and-react method, the coil must unifirmly heated to the melt temperature and uniformly cooled to the solidification temperature. During heat treat cycle for tightly wound coils, the leakage melt from conductor can chemically react with insulation on the conductor and creat short turns in the coils. In this research project, conductor, insulation, and coils are made to systemically study the suitable insulation materials, coil fabrication method, and heat treatment cycles. In this phase I study, 800 meters Bi-2212 wire with 3 different insulation materials have been produced. Best insulation material has been identified after testing six small coils for insulation integrity and critical current at 4.2 K. Four larger coils (2" dia) have been also made with Bi-2212 wrapped with best insulation and with different heattreatment cycle. These coils were tested for Ic in a 6T background field and at 4.2 K. The test result shows that Ic from 4 coils are very close to short samples (1 meter) result. It demonstrates that HTS coils can be made with Bi-2212 wire with best insulation consistently. Better wire insulation, improving coil winding technique, and wire manufacture process can be used for a wide range of high field magnet application including acclerators such as Muon Collider, fusion energy research, NMR spectroscopy, MRI, and other industrial magnets.

Peter K. F. Hwang

2007-10-22T23:59:59.000Z

267

A Review of Irradiation Effects on Organic-Matrix Insulation  

SciTech Connect (OSTI)

This review assesses the data base on epoxy and polyimide matrix insulation to determine whether organic electric insulation systems can be used in the toroidal field (TF) magnets of next generation fusion devices such as ITER* and TPX*. Owing to the difficulties of testing insulation under fusion reactor conditions, there is a considerable mismatch between the ITER requirements and the data that are currently available. For example, nearly all of the high-dose (5 x 10{sup 7} to 10{sup 8} Gy) data obtained on epoxy and polyimide matrix insulation employed gamma irradiation, electron irradiation, or reactor irradiation with a fast neutron fluence far below 10{sup 23}/m{sup 2}, the fluence expected for the insulation at the TF magnets, as set forth in ITER conceptual design documents. Also, the neutron spectrum did not contain a very high energy (E {ge} 5 MeV) component. Such data underestimate the actual damage that would be obtained with the neutron fluence and spectrum expected at a TF magnet. Experiments on a polyimide (Kapton) indicate that gamma or electron doses or mixed gamma and neutron reactor doses would have to be downgraded by a factor of up to ten to simulate fusion neutron doses. Even when neutrons did constitute a significant portion of the total dose, B-containing E-glass reinforcement was often used; therefore, excess damage from the {sup 10}B + n {yields} {sup 7}Li + {alpha} reaction occurred near the glass-epoxy interface. This problem can easily be avoided by substituting B-free glass (R, S, or T types).

Simon, N.J.

1993-06-01T23:59:59.000Z

268

Topological Insulators in Three Dimensions  

Science Journals Connector (OSTI)

We study three-dimensional generalizations of the quantum spin Hall (QSH) effect. Unlike two dimensions, where a single Z2 topological invariant governs the effect, in three dimensions there are 4 invariants distinguishing 16 phases with two general classes: weak (WTI) and strong (STI) topological insulators. The WTI are like layered 2D QSH states, but are destroyed by disorder. The STI are robust and lead to novel “topological metal” surface states. We introduce a tight binding model which realizes the WTI and STI phases, and we discuss its relevance to real materials, including bismuth.

Liang Fu; C. L. Kane; E. J. Mele

2007-03-07T23:59:59.000Z

269

Field impact insulation class (FIIC)—A case study  

Science Journals Connector (OSTI)

Impactnoise in buildings constitutes a potentially serious problem because of the short duration high intensity sounds involved [U.S. Department of Housing and Urban Development Airborne Impact and Structure Borne Noise Chapter 7 (1967)]. Since 1974 the State of California has tried to manage this problem by instituting the California Noise Insulation Standards which require any multi?family dwelling to provide an impact insulation class (IIC) rating of 50 based on laboratory tests or a field impact insulation class (FIIC) rating of 45 based on field tests [Office of Noise Control California Noise Insulation Standards 1–7 (1988)]. Concern about the acceptability of floor ceiling assemblies is increasing due to increased awareness of the problem and larger numbers of people moving into apartments condominiums and townhomes throughout California. Western Electro?Acoustic Laboratory (WEAL) had the opportunity to witness the installation of floor ceiling assemblies in an apartment complex in Bakersfield California. Six different assemblies were tested to determine how the FIIC value changed when minor modifications were made to the standard floor ceiling assembly. WEAL will show the results of the field?tested assemblies and compare the data with typical laboratory results for similar constructions.

John J. LoVerde; Gary Mange

1994-01-01T23:59:59.000Z

270

Crystal-symmetry preserving Wannier states for fractional Chern insulators  

Science Journals Connector (OSTI)

Recently, many numerical evidences of fractional Chern insulator, i.e., the fractional quantum Hall states on lattices, are proposed when a Chern band is partially filled. Some trial wave functions of fractional Chern insulators can be obtained by mapping the fractional quantum Hall wave functions defined in the continuum onto the lattice through the Wannier state representation [Phys. Rev. Lett. 107, 126803 (2011)] in which the single particle Landau orbits in the Landau levels are identified with the one-dimensional Wannier states of the Chern bands with Chern number C=1. However, this mapping generically breaks the lattice point group symmetry. In this paper we discuss a general approach of modifying the mapping to accommodate the lattice rotational symmetry. The wave functions constructed through this modified mapping should serve as better trial wave functions in the thermodynamical limit and on the rotationally invariant finite lattice. Also these wave functions will form a good basis for the construction of lattice symmetry preserving pseudopotential formalism for fractional Chern insulators. The focus of this paper shall be mainly on the C4 rotational symmetry of square lattices. Similar analysis can be straightforwardly generalized to triangular or hexagonal lattices with C6 symmetry. We also generalize the discussion to the lattice symmetry of fractional Chern insulators with high Chern number bands.

Chao-Ming Jian and Xiao-Liang Qi

2013-10-25T23:59:59.000Z

271

Low-cost exterior insulation process and structure  

DOE Patents [OSTI]

A low-cost exterior insulation process of stacking bags of insulating material against a wall and covering them with wire mesh and stucco provides a durable structure with good insulating value.

Vohra, Arun (Bethesda, MD)

1999-01-01T23:59:59.000Z

272

Low-cost exterior insulation process and structure  

DOE Patents [OSTI]

A low-cost exterior insulation process of stacking bags of insulating material against a wall and covering them with wire mesh and stucco provides a durable structure with good insulating value. 2 figs.

Vohra, A.

1999-03-02T23:59:59.000Z

273

Modular cell biology: retroactivity and insulation Domitilla Del Vecchio1,  

E-Print Network [OSTI]

Modular cell biology: retroactivity and insulation Domitilla Del Vecchio1, *, Alexander J Ninfa2 a remarkable insulation property, due to the fast timescales of the phosphorylation and dephosphorylation: computational methods; metabolic and regulatory networks Keywords: feedback; insulation; modularity; singular

Sontag, Eduardo

274

APPLIED PHYSICS REVIEWS Semi-insulating semiconductor heterostructures: Optoelectronic  

E-Print Network [OSTI]

APPLIED PHYSICS REVIEWS Semi-insulating semiconductor heterostructures: Optoelectronic properties of optoelectronic properties of and uses for semi-insulating semiconductor heterostructures and thin films. The principal optical and optoelectronic properties of semi-insulating epilayers and heterostructures

Nolte, David D.

275

ENVIRONMENTALLY FRIENDLY PROCESSING OF POLYURETHANE FOAM FOR THERMAL INSULATION  

E-Print Network [OSTI]

ENVIRONMENTALLY FRIENDLY PROCESSING OF POLYURETHANE FOAM FOR THERMAL INSULATION CHANJOONG KIM was proposed and evaluated for the application of thermal insulation. For the production of polyurethane foam correspondence should be sent. #12;Key Words: Foam; Polyurethane; Thermal insulation; Nucleation; Growth

Kim, Chanjoong

276

Heat Insulation in Electric Power Stations  

Science Journals Connector (OSTI)

... HEAT insulation of pipes, boilers and generating sets, which used to be indicated by the general ... in steam generating plants, it is common experience to find that cracks develop in the insulation on water-cooled furnace walls as the result of: (a) expansion and contraction ...

1940-12-28T23:59:59.000Z

277

Clothing Insulation and Accidental Hypothermia in Youth  

Science Journals Connector (OSTI)

... and climbers in Britain. The effects of exercise, wind and wetting on the thermal insulation of a typical clothing assembly were observed. The clothing examined had been worn by ... ) 0-13 1-00 (b) AN ABBREVIATED TABLE or STANDARD VALUES OF AIR INSULATION (IA)4

L. G. C. PUGH

1966-03-26T23:59:59.000Z

278

Uniform insulation applied-B ion diode  

DOE Patents [OSTI]

An applied-B field extraction ion diode has uniform insulation over an anode surface for increased efficiency. When the uniform insulation is accomplished with anode coils, and a charge-exchange foil is properly placed, the ions may be focused at a point on the z axis.

Seidel, David B. (Albuquerque, NM); Slutz, Stephen A. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

279

Kingspan Insulated Panels: Order (2013-CE-5353)  

Broader source: Energy.gov [DOE]

DOE ordered Kingspan Insulated Panels, Inc. to pay a $8,000 civil penalty after finding Kingspan Insulated Panels had failed to certify that any basic models of walk-in cooler and freezer components comply with the applicable energy conservation standards.

280

Comprehensive study of the metal-insulator transition in pulsed laser deposited epitaxial VO2 thin films  

E-Print Network [OSTI]

Comprehensive study of the metal-insulator transition in pulsed laser deposited epitaxial VO2 thin properties of high-quality VO2 thin films across its metal-insulator phase transition. Detailed x-ray deposition,9 sol-gel deriving,10 sputtering,11 and pulsed laser deposition,12 the study of VO2 is reviving

Wu, Junqiao

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


281

Study on Ferroelectric Thick Film Insulator Sleeve On Plasma Focus  

Science Journals Connector (OSTI)

The effect of ferroelectric lead germanate Pb 5 Ge 3O11 (PGO) thick film in the alumina insulator sleeve of the 400 Joule Mather?type plasma focus device PF?400J is studied. The breakdown phase along the insulator is fundamental for the formation of a homogeneous and symmetric current sheath that is essential for a good plasma pinching high neutron yield and X?ray emissions. For over several hundreds of electrical discharges the films show good mechanical and electric performance. From the beginning the operating system is highly reproducible shot to shot with a clear definition of the plasma pinch on the axis of discharge. The grade of influence of the electron emission from the ferroelectric is experimentally studied.

Gustavo Sylvester; Patricio Silva; José Moreno; Marcelo Zambra; Leopoldo Soto

2006-01-01T23:59:59.000Z

282

Building Technologies Office: Vacuum Insulation Panels Research Project  

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

Vacuum Insulation Vacuum Insulation Panels Research Project to someone by E-mail Share Building Technologies Office: Vacuum Insulation Panels Research Project on Facebook Tweet about Building Technologies Office: Vacuum Insulation Panels Research Project on Twitter Bookmark Building Technologies Office: Vacuum Insulation Panels Research Project on Google Bookmark Building Technologies Office: Vacuum Insulation Panels Research Project on Delicious Rank Building Technologies Office: Vacuum Insulation Panels Research Project on Digg Find More places to share Building Technologies Office: Vacuum Insulation Panels Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research Building Envelope Research Windows, Skylights, & Doors Research

283

Building America Expert Meeting Report: Interior Insulation Retrofit...  

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

Interior Insulation Retrofit of Mass Masonry Wall Assembliesessment of risk factors for premature building deterioration due to interior insulation retrofits, and methods to reduce...

284

Foundation Insulation for Existing Homes | Department of Energy  

Energy Savers [EERE]

Foundation Insulation for Existing Homes Foundation Insulation for Existing Homes This presentation was delivered at the U.S. Department of Energy Building America Technical Update...

285

Journal Article: Graphene physics and insulator-metal transition...  

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

Graphene physics and insulator-metal transition in compressed hydrogen Citation Details Title: Graphene physics and insulator-metal transition in compressed hydrogen Authors:...

286

Compression of felt?type thermal insulation layer for underfloor heating system and floor impact sound  

Science Journals Connector (OSTI)

In Korea almost every house uses underfloor heating which has advantages of thermal comfort and energy efficiency. However when it is constructed for high?rise apartment houses it yields a problem in floor impact sound insulation. It accounts for the fact that a foam?type thermal insulator sandwiched between structural slab and heating floor functions as a spring and easily transmits impacts on the floor to the slab. In that case the system's transmissibility is determined by dynamic stiffness of the thermal insulation layer and the lower the dynamic stiffness is the more the floor impact is isolated. For that reason apartments construction companies are attempting to lower the dynamic stiffness of the thermal insulation layer for impact sound reduction. As part of the attempt felt?type materials with relatively low dynamic stiffness such as glass wool or polyester felt are considered as a substitution for the foam?type thermal insulator. However there is a possibility that compression of the felt?type materials would increase the dynamic stiffness and the impact sound insulation effect at early stage might be weakened in the long term. This paper investigates the correlation between gradual compression of the felt?type thermal insulation layer and the impact sound variation.

Tongjun Cho; Hyun?Min Kim

2008-01-01T23:59:59.000Z

287

Measurement of Exterior Foundation Insulation to Assess Durability in Energy-Saving Performance  

SciTech Connect (OSTI)

The foundation of a house is a sometimes ignored component of the building because of its low visibility. It is increasingly evident, however, that attention to good foundation design and construction significantly benefits the homeowner and the builder by mitigating future problems. Good foundation design and construction practice involves not only insulating to save energy but also providing effective structural design as well as moisture, termite, and radon control techniques as appropriate. Energy efficiency in housing is augmented by use of exterior slab and basement insulation, but high moisture content in the insulation material has led to concerns about its durability. The activity under this task was to extract six different exterior insulation systems that were characterized at installation and have been in the ground for 9 months to 15 years. R-value and moisture content were measured and inspections conducted for evidence of termite intrusion or deterioration. Based on the results, the durability of the various systems has been documented and assessments made of which systems appear to be best practice. Heat flux and temperature measurement data had been archived for some of the exterior insulation tests, thereby providing a unique opportunity to assess energy-saving performance and durability over the long term. The results show that the durability of foundation insulation systems depends on insulation type as well as on foundation type and local boundary conditions, the latter of which may have a marked influence on the durability of energy-saving performance.

Kehrer, Manfred [ORNL; Christian, Jeff [Oak Ridge National Laboratory (ORNL)

2012-04-01T23:59:59.000Z

288

Sensitivity of forced air distribution system efficiency to climate, duct location, air leakage and insulation  

E-Print Network [OSTI]

Location, Air Leakage and Insulation Iain S. Walker Energy4 Duct Insulation, Location and Leakageinsulation

Walker, Iain

2001-01-01T23:59:59.000Z

289

Fabrication of heterojunction solar cells by improved tin oxide deposition on insulating layer  

DOE Patents [OSTI]

Highly efficient tin oxide-silicon heterojunction solar cells are prepared by heating a silicon substrate, having an insulating layer thereon, to provide a substrate temperature in the range of about 300.degree. C. to about 400.degree. C. and thereafter spraying the so-heated substrate with a solution of tin tetrachloride in a organic ester boiling below about 250.degree. C. Preferably the insulating layer is naturally grown silicon oxide layer.

Feng, Tom (Morris Plains, NJ); Ghosh, Amal K. (New Providence, NJ)

1980-01-01T23:59:59.000Z

290

Thermal Performance of Exterior Insulation and Finish Systems Containing Vacuum Insulation Panels  

SciTech Connect (OSTI)

A high-performance wall system is under development to improve wall thermal performance to a level of U-factor of 0.19 W/(m2 K) (R-30 [h ft2 F]/Btu) in a standard wall thickness by incorporating vacuum insulation panels (VIPs) into an exterior insulation finish system (EIFS). Such a system would be applicable to new construction and will offer a solution to more challenging retrofit situations as well. Multiple design options were considered to balance the need to protect theVIPs during construction and building operation, while minimizing heat transfer through the wall system. The results reported here encompass an indepth assessment of potential system performances including thermal modeling, detailed laboratory measurements under controlled conditions on the component, and system levels according to ASTM C518 (ASTM 2010). The results demonstrate the importance of maximizing the VIP coverage over the wall face. The results also reveal the impact of both the design and execution of system details, such as the joints between adjacent VIPs. The test results include an explicit modeled evaluation of the system performance in a clear wall.

Childs, Kenneth W [ORNL; Stovall, Therese K [ORNL; Biswas, Kaushik [ORNL; Carbary, Lawrence D [Dow Corning Corporation, Midland, MI

2013-01-01T23:59:59.000Z

291

Removable fibrous glass insulation fitted to complex equipment shapes results in $178,000/yr savings  

SciTech Connect (OSTI)

In early 1980, PPG Industries embarked on a general plant energy conservation effort at its Lake Charles, LA plant where chlor-alkalis, various chlorinated hydrocarbons, and vinyl chloride monomer are manufactured. Company engineers sought a means of insulating process steam components that, because of their complex shapes, were not (and normally are not) insulated. These components included flanges on heat exchanger heads and reboilers, steam valves in process areas, manways and other equipment. PPG plant engineers specified removable, reusable blanket insulation. The blankets are constructed of a fibrous glass mat form insulation encased in a silicone-impregnated glass cloth or similar weather barrier. Each insulation blanket was custom-made for its particular equipment shape and service application to ensure a close fit and optimal energy efficiency. Insulation thickness, type of weather barrier, and mesh were specified according to intended use. For protection from abrasion or puncture, some of the blankets also were covered with stainless steel, Monel, or Inconel wire mesh. Overall, the blankets provide high strength, durability, low thermal conductivity ratings, and an operating range of up to 1200/sup 0/F. Reduced maintenance costs and improved worker productivity have been evidenced since installing the blanket insulation. Further, PPG has increased energy efficiency. Project savings were tracked for 30 months (insulation and installation costs vs. fuel and maintenance savings) and revealed annual plant savings of $178,000-$130,000 in energy savings and $48,000 in maintenance savings. With the cost of the insulation blankets being about $125,000, PPG recovered its investment in under a year.

Not Available

1985-08-01T23:59:59.000Z

292

Excavationless Exterior Foundation Insulation Field Study  

SciTech Connect (OSTI)

Building science research supports installing exterior (soil side) foundation insulation as the optimal method to enhance the hygrothermal performance of new homes. With exterior foundation insulation, water management strategies are maximized while insulating the basement space and ensuring a more even temperature at the foundation wall. However, such an approach can be very costly and disruptive when applied to an existing home, requiring deep excavation around the entire house. The NorthernSTAR Building America Partnership team implemented an innovative, minimally invasive foundation insulation upgrade technique on an existing home. The approach consisted of using hydrovac excavation technology combined with a liquid insulating foam. The team was able to excavate a continuous 4" wide by 4' to 5' deep trench around the entire house, 128 linear feet, except for one small part under the stoop that was obstructed with concrete debris. The combination pressure washer and vacuum extraction technology also enabled the elimination of large trenches and soil stockpiles normally produced by backhoe excavation. The resulting trench was filled with liquid insulating foam, which also served as a water-control layer of the assembly. The insulation was brought above grade using a liquid foam/rigid foam hybrid system and terminated at the top of the rim joist. Cost savings over the traditional excavation process ranged from 23% to 50%. The excavationless process could result in even greater savings since replacement of building structures, exterior features, utility meters, and landscaping would be minimal or non-existent in an excavationless process.

Schirber, T.; Mosiman, G.; Ojczyk, C.

2014-10-01T23:59:59.000Z

293

Insulation failure assessment under random energization overvoltages  

SciTech Connect (OSTI)

This paper offers a new simple approach to the evaluation of the risk of failure of external insulation in view of their known probabilistic nature. This is applied to EHV transmission systems subjected to energization overvoltages. The randomness, both in the applied stresses and insulation`s withstand characteristics are numerically simulated and then integrated to assess the risk of failure. Overvoltage control methods are accounted for, such as the use of pre-insertion breaker resistors, series capacitive compensation, and the installation of shunt reactors.

Mahdy, A.M.; Anis, H.I. [Cairo Univ. (Egypt)] [Cairo Univ. (Egypt); El-Morshedy, A. [Faculty of Science for Girls, Dammam (Saudi Arabia)] [Faculty of Science for Girls, Dammam (Saudi Arabia)

1996-03-01T23:59:59.000Z

294

Electrical Strength of Multilayer Vacuum Insulators  

SciTech Connect (OSTI)

The electrical strength of vacuum insulators is a key constraint in the design of particle accelerators and pulsed power systems. Vacuum insulating structures assembled from alternating layers of metal and dielectric can result in improved performance compared to conventional insulators, but previous attempts to optimize their design have yielded seemingly inconsistent results. Here, we present two models for the electrical strength of these structures, one assuming failure by vacuum arcing between adjacent metal layers and the other assuming failure by vacuum surface flashover. These models predict scaling laws which are in agreement with the experimental data currently available.

Harris, J R; Kendig, M; Poole, B; Sanders, D M; Caporaso, G J

2008-07-01T23:59:59.000Z

295

Is Graphene in Vacuum an Insulator?  

Science Journals Connector (OSTI)

We present evidence, from lattice Monte Carlo simulations of the phase diagram of graphene as a function of the Coulomb coupling between quasiparticles, that graphene in vacuum is likely to be an insulator. We find a semimetal-insulator transition at ?gcrit=1.11±0.06, where ?g?2.16 in vacuum, and ?g?0.79 on a SiO2 substrate. Our analysis uses the logarithmic derivative of the order parameter, supplemented by an equation of state. The insulating phase disappears above a critical number of four-component fermion flavors 4

Joaquín E. Drut and Timo A. Lähde

2009-01-13T23:59:59.000Z

296

Measure Guideline: Hybrid Foundation Insulation Retrofits  

SciTech Connect (OSTI)

This measure guideline provides recommendations for designs and variations for retrofit hybrid assemblies in improving interior foundation insulation and water management of basements. Variations include closed cell spray foam (ccSPF) with membrane waterproofing or air gap membrane drainage layers, rigid board foam insulation at flat walls (cast concrete or CMU block), a 'partial drainage' detail making use of the bulk water drainage that occurs through the field of a rubble stone wall, and non-drained spray foam assemblies (including slab insulation).

Ueno, K.; Lstiburek, J.

2012-05-01T23:59:59.000Z

297

Next Generation Insulation Materials: Challenges and Opportunities...  

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

Next-Generation Insulation Materials: Challenges and Opportunities Nov 14 2014 03:00 PM - 04:00 PM Kaushik Biswas, Building Technologies Research and Integration Center, Oak Ridge...

298

Nonlinear boundary value problem of magnetic insulation  

E-Print Network [OSTI]

On the basis of generalization of upper and lower solution method to the singular two point boundary value problems, the existence theorem of solutions for the system, which models a process of magnetic insulation in plasma is proved.

A. V. Sinitsyn

2000-09-09T23:59:59.000Z

299

Phosphorylation based insulation devices design and implementation  

E-Print Network [OSTI]

This thesis presents the analysis of a phosphorylation based insulation device implemented in Saccharomyces cerevisae and the minimization of the retroactivity to the input and retroactivity to the output of a single cycle ...

Rivera Ortiz, Phillip M. (Phillip Michael)

2013-01-01T23:59:59.000Z

300

Insulate Steam Distribution and Condensate Return Lines  

Broader source: Energy.gov [DOE]

This tip sheet on insulating steam distribution and condensate return lines provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

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


301

Insulate Steam Distribution and Condensate Return Lines  

SciTech Connect (OSTI)

This revised ITP tip sheet on insulating steam distribution and condensate return lines provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

302

Fire Behaviour of Rigid Foam Insulation Boards  

Science Journals Connector (OSTI)

Low density cellular polymers have established a significant share of the market for insulating materials in the building industry due to their unique combination of low density and low thermal conductivity. Manu...

P. J. Briggs

1986-01-01T23:59:59.000Z

303

Reinforced Phenolic Foams for Thermal Insulation  

Science Journals Connector (OSTI)

The reported research is related to phenolic resins panels for thermal insulation. This research started from previous results on the fabrication of foams from powdered Novolaque phenolic resins without acid...

P. Dubois; C. Reinaudo; E. Morel; C. Chauvelier

1984-01-01T23:59:59.000Z

304

Aging Characteristics of Polyurethane Foam Insulation  

Science Journals Connector (OSTI)

Closed-cell polyurethane foam insulation displays a time-dependent thermal conductivity characteristic commonly known as aging. Freshly made foam has a relatively low thermal conductivity, which ... in order to e...

J. Navickas; R. A. Madsen

1977-01-01T23:59:59.000Z

305

Thermal Insulation in Solar Thermal Devices  

Science Journals Connector (OSTI)

Thermal Insulation is a device or a practice which is used in a system for minimising heat losses caused due to transfer of heat from hotter to colder regions. It is one of the cheapest methods of energy conse...

B. C. Raychaudhuri

1986-01-01T23:59:59.000Z

306

Insulation for New Home Construction | Department of Energy  

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

Insulation for New Home Construction Insulation for New Home Construction Insulation for New Home Construction June 20, 2012 - 7:59pm Addthis Planning carefully for insulation results in reduced utility bills and superior comfort during the life of the home. In this house, raised heel trusses accommodate R-60 insulation. | Credit: Paul Norton, NREL. Planning carefully for insulation results in reduced utility bills and superior comfort during the life of the home. In this house, raised heel trusses accommodate R-60 insulation. | Credit: Paul Norton, NREL. What does this mean for me? Adding extra insulation in a new home is more cost-effective than retrofitting insulation after the home is completed. Insulation is a key component of the systems that work together to create a comfortable, energy-efficient home that is affordable to heat and

307

Savings Project: Insulate Your Water Heater Tank | Department of Energy  

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

Savings Project: Insulate Your Water Heater Tank Savings Project: Insulate Your Water Heater Tank Savings Project: Insulate Your Water Heater Tank Addthis Project Level medium Energy Savings $20-$45 annually Time to Complete 1.5 hours Overall Cost $30 Insulate your hot water tank to save energy and money. | Photo courtesy of iStockphoto.com/glennebo Insulate your hot water tank to save energy and money. | Photo courtesy of iStockphoto.com/glennebo Just like insulating your walls or roof, insulating your hot water tank is an easy and inexpensive way to improve energy efficiency and save you money each month. If your water tank is new, it is likely already insulated. If you have an older hot water tank, check to see if it has insulation with an R-value of at least 24. If not, consider insulating your water tank, which

308

CDM as a Solution for the Present World Energy Problems (An Overview with Respect to the Building and Construction Sector)  

E-Print Network [OSTI]

? Insulated glazing and selective glazing films ? Night and cold-weather movable insulation ? On site electric power generation by renewable energy in the form of photovoltaics (PV) ? Wind generators ? Micro-hydro (either with fully-independent systems...

Sudarsan, N.; Jayaraj, S.; Sreekanth, K. J.

2010-01-01T23:59:59.000Z

309

Panelized wall system with foam core insulation  

DOE Patents [OSTI]

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.

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

2009-10-20T23:59:59.000Z

310

Development of insulating coatings for liquid metal blankets  

SciTech Connect (OSTI)

It is shown that self-cooled liquid metal blankets are feasible only with electrically insulating coatings at the duct walls. The requirements on the insulation properties are estimated by simple analytical models. Candidate insulator materials are selected based on insulating properties and thermodynamic consideration. Different fabrication technologies for insulating coatings are described. The status of the knowledge on the most crucial feasibility issue, the degradation of the resisivity under irradiation, is reviewed.

Malang, S.; Borgstedt, H.U. [Kernforschungszentrum Karlsruhe GmbH (Germany); Farnum, E.H. [Los Alamos National Lab., NM (United States); Natesan, K. [Argonne National Lab., IL (United States); Vitkovski, I.V. [Efremov Inst., St. Petersburg (Russian Federation). MHD-Machines Lab.

1994-07-01T23:59:59.000Z

311

BOA: Pipe-asbestos insulation removal robot system  

SciTech Connect (OSTI)

This paper describes the BOA system, a mobile pipe-external crawler used to remotely strip and bag (possibly contaminated) asbestos-containing lagging and insulation materials (ACLIM) from various diameter pipes in (primarily) industrial installations across the DOE weapons complex. The mechanical removal of ACLIM is very cost-effective due to the relatively low productivity and high cost involved in human removal scenarios. BOA, a mechanical system capable of removing most forms of lagging (paper, plaster, aluminum sheet, clamps, screws and chicken-wire), and insulation (paper, tar, asbestos fiber, mag-block) uses a circular cutter and compression paddles to cut and strip the insulation off the pipe through compression, while a HEPA-filter and encapsulant system maintain a certifiable vacuum and moisture content inside the system and on the pipe, respectively. The crawler system has been built and is currently undergoing testing. Key design parameters and performance parameters are developed and used in performance testing. Since the current system is a testbed, we also discuss future enhancements and outline two deployment scenarios (robotic and manual) for the final system to be designed and completed by the end of FY `95. An on-site demonstration is currently planned for Fernald in Ohio and Oak Ridge in Tennessee.

Schempf, H.; Bares, J.; Mutschler, E. [and others

1995-12-31T23:59:59.000Z

312

Method for forming fibrous silicon carbide insulating material  

DOE Patents [OSTI]

A method whereby silicon carbide-bonded SiC fiber composites are prepared from carbon-bonded C fiber composites is disclosed. Carbon-bonded C fiber composite material is treated with gaseous silicon monoxide generated from the reaction of a mixture of colloidal silica and carbon black at an elevated temperature in an argon atmosphere. The carbon in the carbon bond and fiber is thus chemically converted to SiC resulting in a silicon carbide-bonded SiC fiber composite that can be used for fabricating dense, high-strength high-toughness SiC composites or as thermal insulating materials in oxidizing environments.

Wei, George C. (Oak Ridge, TN)

1984-01-01T23:59:59.000Z

313

Method for forming fibrous silicon carbide insulating material  

DOE Patents [OSTI]

A method whereby silicon carbide-bonded SiC fiber composites are prepared from carbon-bonded C fiber composites is disclosed. Carbon-bonded C fiber composite material is treated with gaseous silicon monoxide generated from the reaction of a mixture of colloidal silica and carbon black at an elevated temperature in an argon atmosphere. The carbon in the carbon bond and fiber is thus chemically converted to SiC resulting in a silicon carbide-bonded SiC fiber composite that can be used for fabricating dense, high-strength high-toughness SiC composites or as thermal insulating materials in oxidizing environments.

Wei, G.C.

1983-10-12T23:59:59.000Z

314

Adding Insulation to an Existing Home | Department of Energy  

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

Adding Insulation to an Existing Home Adding Insulation to an Existing Home Adding Insulation to an Existing Home May 23, 2013 - 1:44pm Addthis Adding insulation in an existing home saves money and improves comfort. | Photo courtesy of Dennis Schroeder, NREL. Adding insulation in an existing home saves money and improves comfort. | Photo courtesy of Dennis Schroeder, NREL. What does this mean for me? Adding insulation to your home saves money and improves comfort. Adding insulation to your home is a sound investment that is likely pay for itself quickly in reduced utility bills. Insulation inhibits heat flow through the building envelope of your home, saving money and improving comfort. Unless your home was specially constructed for energy efficiency, you can probably reduce your energy bills by adding more insulation. Many older

315

Dynamic predictive clothing insulation models based on outdoor air and indoor operative temperatures  

E-Print Network [OSTI]

predictive clothing insulation models based on outdoor airrange of the clothing insulation calculated for eachbuilding). Figure 8 Clothing insulation versus dress code [

Schiavon, Stefano; Lee, Kwang Ho

2012-01-01T23:59:59.000Z

316

Predictive clothing insulation model based on outdoor air and indoor operative temperatures  

E-Print Network [OSTI]

2012) Predictive clothing insulation model based on outdoorPredictive clothing insulation model based on outdoor airpredictive models of clothing insulation have been developed

Schiavon, Stefano; Lee, Kwang Ho

2012-01-01T23:59:59.000Z

317

Versatile Indian sari: Clothing insulation with different drapes of typical sari ensembles  

E-Print Network [OSTI]

Extension of the Clothing Insulation Database for Standardand air movement on that insulation. , s.l. : s.n. Havenith,Estimation of the thermal insulation and evaporative

Indraganti, Madhavi; Lee, Juyoun; Zhang, Hui; Arens, Edward

2014-01-01T23:59:59.000Z

318

Flipping Photoelectron Spins in Topological Insulators  

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

Flipping Photoelectron Spins in Topological Insulators Print Flipping Photoelectron Spins in Topological Insulators Print Inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. This new phase of condensed matter is an insulator in the bulk, yet behaves like a metal on its surface, even at room temperature. The electrons that flow swiftly across the surfaces of TIs are "spin polarized", meaning the electron's spin is locked to its momentum, perpendicular to the direction of travel. These electronic states already promise many uses, but ALS researchers working at Beamline 4.0.3 with a team from Berkeley Lab and the University of California, Berkeley have just made an unexpected discovery about TIs that will broaden their possible range of applications: when hit with a photon beam, the spin polarization of the electrons they emit (in a process called photoemission) can be completely controlled in three dimensions, simply by tuning the polarization of the incident light. This strong effect was not what had been assumed about photoemission from topological insulators, or any other material. Controlling the interaction of polarized light and photoelectron spin opens a wide range of possibilities for TIs.

319

Flipping Photoelectron Spins in Topological Insulators  

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

Flipping Photoelectron Spins in Topological Insulators Print Flipping Photoelectron Spins in Topological Insulators Print Inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. This new phase of condensed matter is an insulator in the bulk, yet behaves like a metal on its surface, even at room temperature. The electrons that flow swiftly across the surfaces of TIs are "spin polarized", meaning the electron's spin is locked to its momentum, perpendicular to the direction of travel. These electronic states already promise many uses, but ALS researchers working at Beamline 4.0.3 with a team from Berkeley Lab and the University of California, Berkeley have just made an unexpected discovery about TIs that will broaden their possible range of applications: when hit with a photon beam, the spin polarization of the electrons they emit (in a process called photoemission) can be completely controlled in three dimensions, simply by tuning the polarization of the incident light. This strong effect was not what had been assumed about photoemission from topological insulators, or any other material. Controlling the interaction of polarized light and photoelectron spin opens a wide range of possibilities for TIs.

320

Flipping Photoelectron Spins in Topological Insulators  

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

Flipping Photoelectron Spins in Topological Insulators Print Flipping Photoelectron Spins in Topological Insulators Print Inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. This new phase of condensed matter is an insulator in the bulk, yet behaves like a metal on its surface, even at room temperature. The electrons that flow swiftly across the surfaces of TIs are "spin polarized", meaning the electron's spin is locked to its momentum, perpendicular to the direction of travel. These electronic states already promise many uses, but ALS researchers working at Beamline 4.0.3 with a team from Berkeley Lab and the University of California, Berkeley have just made an unexpected discovery about TIs that will broaden their possible range of applications: when hit with a photon beam, the spin polarization of the electrons they emit (in a process called photoemission) can be completely controlled in three dimensions, simply by tuning the polarization of the incident light. This strong effect was not what had been assumed about photoemission from topological insulators, or any other material. Controlling the interaction of polarized light and photoelectron spin opens a wide range of possibilities for TIs.

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


321

Flipping Photoelectron Spins in Topological Insulators  

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

Flipping Photoelectron Spins in Flipping Photoelectron Spins in Topological Insulators Flipping Photoelectron Spins in Topological Insulators Print Tuesday, 23 April 2013 10:00 Inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. This new phase of condensed matter is an insulator in the bulk, yet behaves like a metal on its surface, even at room temperature. The electrons that flow swiftly across the surfaces of TIs are "spin polarized", meaning the electron's spin is locked to its momentum, perpendicular to the direction of travel. These electronic states already promise many uses, but ALS researchers working at Beamline 4.0.3 with a team from Berkeley Lab and the University of California, Berkeley have just made an unexpected discovery about TIs that will broaden their possible range of applications: when hit with a photon beam, the spin polarization of the electrons they emit (in a process called photoemission) can be completely controlled in three dimensions, simply by tuning the polarization of the incident light. This strong effect was not what had been assumed about photoemission from topological insulators, or any other material. Controlling the interaction of polarized light and photoelectron spin opens a wide range of possibilities for TIs.

322

Foam insulation for a liquid oxygen densifier  

Science Journals Connector (OSTI)

Analyses indicated that it would not be cost effective to vacuum insulate a 7 foot diameter by 30 foot long liquid nitrogen vessel for a launch facility liquid oxygen densifier. Foam insulation appeared to be the logical choice for this infrequently used ground support equipment but the history of foam problems due to cracking, adhesive failure and internal shearing weighed against the use of commercial spray-on material. These problems were solved with a system consisting of alternate sealing and flexible foam layers: (1) an inner membrane sealed to itself but not attached to the cold shell or pipe; (2) a flexible foam insulation layer; (3) a vapor-tight sealing membrane; (4) a second flexible foam insulation layer and (5) an outer aluminized sealing membrane. The second and subsequent layers are sealed to each underlying layer by flexible foam contact adhesive. The inner sealing membrane is particularly vital in that it allows the first foam layer to expand and contract as the tank temperature changes and it also protects the tank from chloride corrosion from the foam. This paper describes preliminary testing to prove out the system and the steps taken to install flexible foam insulation on the oxygen densifier vessel.

G.E. McIntosh; R. Stuckenschmidt

2012-01-01T23:59:59.000Z

323

Flipping Photoelectron Spins in Topological Insulators  

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

Flipping Photoelectron Spins in Topological Insulators Print Flipping Photoelectron Spins in Topological Insulators Print Inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. This new phase of condensed matter is an insulator in the bulk, yet behaves like a metal on its surface, even at room temperature. The electrons that flow swiftly across the surfaces of TIs are "spin polarized", meaning the electron's spin is locked to its momentum, perpendicular to the direction of travel. These electronic states already promise many uses, but ALS researchers working at Beamline 4.0.3 with a team from Berkeley Lab and the University of California, Berkeley have just made an unexpected discovery about TIs that will broaden their possible range of applications: when hit with a photon beam, the spin polarization of the electrons they emit (in a process called photoemission) can be completely controlled in three dimensions, simply by tuning the polarization of the incident light. This strong effect was not what had been assumed about photoemission from topological insulators, or any other material. Controlling the interaction of polarized light and photoelectron spin opens a wide range of possibilities for TIs.

324

12 - Life cycle assessment (LCA) of building thermal insulation materials  

Science Journals Connector (OSTI)

Abstract: In this chapter thermal insulation materials and types of plaster and their properties are described. The impact of the selected thermal insulation materials and plaster on the environment is assessed using LCA analysis. A method of assessing the ecological and economic benefits resulting from thermal insulation of the external walls of buildings is proposed. On this basis, ecological and economic payback periods for thermal insulation are defined as well as the ecological efficiency of thermal insulation. The conducted analyses conclude that thermal insulation of the external walls of buildings is environmentally favourable.

R. Dylewski; J. Adamczyk

2014-01-01T23:59:59.000Z

325

Radio-transparent multi-layer insulation for radiowave receivers  

SciTech Connect (OSTI)

In the field of radiowave detection, enlarging the receiver aperture to enhance the amount of light detected is essential for greater scientific achievements. One challenge in using radio transmittable apertures is keeping the detectors cool. This is because transparency to thermal radiation above the radio frequency range increases the thermal load. In shielding from thermal radiation, a general strategy is to install thermal filters in the light path between aperture and detectors. However, there is difficulty in fabricating metal mesh filters of large diameters. It is also difficult to maintain large diameter absorptive-type filters in cold because of their limited thermal conductance. A technology that maintains cold conditions while allowing larger apertures has been long-awaited. We propose radio-transparent multi-layer insulation (RT-MLI) composed from a set of stacked insulating layers. The insulator is transparent to radio frequencies, but not transparent to infrared radiation. The basic idea for cooling is similar to conventional multi-layer insulation. It leads to a reduction in thermal radiation while maintaining a uniform surface temperature. The advantage of this technique over other filter types is that no thermal links are required. As insulator material, we used foamed polystyrene; its low index of refraction makes an anti-reflection coating unnecessary. We measured the basic performance of RT-MLI to confirm that thermal loads are lowered with more layers. We also confirmed that our RT-MLI has high transmittance to radiowaves, but blocks infrared radiation. For example, RT-MLI with 12 layers has a transmittance greater than 95% (lower than 1%) below 200 GHz (above 4 THz). We demonstrated its effects in a system with absorptive-type filters, where aperture diameters were 200 mm. Low temperatures were successfully maintained for the filters. We conclude that this technology significantly enhances the cooling of radiowave receivers, and is particularly suitable for large-aperture systems. This technology is expected to be applicable to various fields, including radio astronomy, geo-environmental assessment, and radar systems.

Choi, J. [Korea University, Anam-dong Seongbuk-gu, Seoul 136-713 (Korea, Republic of)] [Korea University, Anam-dong Seongbuk-gu, Seoul 136-713 (Korea, Republic of); Ishitsuka, H. [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan)] [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan); Mima, S. [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)] [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Oguri, S., E-mail: shugo@post.kek.jp [Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801 (Japan); Takahashi, K. [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan) [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Department of Physics, Tohoku University, Sendai, Miyagi 980-8578 (Japan); Tajima, O. [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan) [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan); Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801 (Japan)

2013-11-15T23:59:59.000Z

326

A Compact Pressure-Insulated Electrostatic X-Ray Generator  

Science Journals Connector (OSTI)

A compact, pressure-insulated, electrostatic x-ray generator has been developed for scientific and medical purposes. A major object of the work was the investigation, with a small and thus flexible machine, of the principles and design factors involved in pressure-insulated electrostatic generators with a view to the subsequent development of higher voltages in compact apparatus. The generator is housed in a steel tank 34 in. in diameter and 100 in. high. At air pressures of 11 atmospheres absolute, 1250-kv x-rays are obtained with target currents of over one milliampere supplied by the single 14-in. belt. With Freon gas the same voltages and currents can be obtained at one-third the pressure required with air. The problem of belt charge is analyzed and a method is described for controlling the electrostatic fields within the column in order to realize the high charge densities possible at high pressure. The construction of a supporting column of high breakdown strength, and other features of the design are described. At 1250 kv the x-ray intensity per milliampere of target current is about 340 roentgens per minute at 50 cm from the target in the direction of the electron beam with five mm of lead equivalent filtration.

John G. Trump and R. J. van de Graaff

1939-06-15T23:59:59.000Z

327

Studies Bolster Promise of Topological Insulators  

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

Studies Bolster Promise of Studies Bolster Promise of Topological Insulators Studies Bolster Promise of Topological Insulators Print Tuesday, 27 November 2012 00:00 A few years ago, a strange new material began to drive research in condensed-matter physics around the world. First theorized and then discovered by researchers at Berkeley Lab and their colleagues in other institutions, these "strong 3D topological insulators"-TIs for short-are seemingly mundane semiconductors with startling properties. Not only are they promising materials for energy-conserving electronic applications, they provide a fascinating medium for possibly observing still-theoretical particles that could play a major role in quantum computing. Two angle-resolved photoemission spectroscopy (ARPES) studies recently performed at ALS Beamline 12.0.1 improve the prospects for the practical application of TIs in advanced devices.

328

Studies Bolster Promise of Topological Insulators  

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

Studies Bolster Promise of Topological Insulators Print Studies Bolster Promise of Topological Insulators Print A few years ago, a strange new material began to drive research in condensed-matter physics around the world. First theorized and then discovered by researchers at Berkeley Lab and their colleagues in other institutions, these "strong 3D topological insulators"-TIs for short-are seemingly mundane semiconductors with startling properties. Not only are they promising materials for energy-conserving electronic applications, they provide a fascinating medium for possibly observing still-theoretical particles that could play a major role in quantum computing. Two angle-resolved photoemission spectroscopy (ARPES) studies recently performed at ALS Beamline 12.0.1 improve the prospects for the practical application of TIs in advanced devices.

329

Studies Bolster Promise of Topological Insulators  

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

Studies Bolster Promise of Topological Insulators Print Studies Bolster Promise of Topological Insulators Print A few years ago, a strange new material began to drive research in condensed-matter physics around the world. First theorized and then discovered by researchers at Berkeley Lab and their colleagues in other institutions, these "strong 3D topological insulators"-TIs for short-are seemingly mundane semiconductors with startling properties. Not only are they promising materials for energy-conserving electronic applications, they provide a fascinating medium for possibly observing still-theoretical particles that could play a major role in quantum computing. Two angle-resolved photoemission spectroscopy (ARPES) studies recently performed at ALS Beamline 12.0.1 improve the prospects for the practical application of TIs in advanced devices.

330

Frostbite Theater - Liquid Nitrogen Experiments - Insulators!  

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

Popping Film Canisters! Popping Film Canisters! Previous Video (Popping Film Canisters!) Frostbite Theater Main Index Next Video (Liquid Nitrogen Show!) Liquid Nitrogen Show! Insulators! Cups full of water are placed into bowls of liquid nitrogen! Which cup will insulate the best? [ Show Transcript ] Announcer: Frostbite Theater presents... Cold Cuts! No baloney! Joanna and Steve: Just science! Joanna: Hi! I'm Joanna! Steve: And I'm Steve! Joanna: And this is a container of liquid nitrogen! Steve: And these are two plastic cups! Joanna: Let's see which cup is the better insulator! Steve: Okay! So, um, how do we do that? Joanna: Well, we'll pour water into each of the cups and then we'll pour the liquid nitrogen into each of the bowls. If we then place the cup in the bowl, the heat from the water will try to pass through the cup into the

331

Studies Bolster Promise of Topological Insulators  

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

Studies Bolster Promise of Topological Insulators Print Studies Bolster Promise of Topological Insulators Print A few years ago, a strange new material began to drive research in condensed-matter physics around the world. First theorized and then discovered by researchers at Berkeley Lab and their colleagues in other institutions, these "strong 3D topological insulators"-TIs for short-are seemingly mundane semiconductors with startling properties. Not only are they promising materials for energy-conserving electronic applications, they provide a fascinating medium for possibly observing still-theoretical particles that could play a major role in quantum computing. Two angle-resolved photoemission spectroscopy (ARPES) studies recently performed at ALS Beamline 12.0.1 improve the prospects for the practical application of TIs in advanced devices.

332

An Insulating Breakthrough | Advanced Photon Source  

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

Science Highlights Archives: 2013 | 2012 | 2011 | 2010 Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed An Insulating Breakthrough JANUARY 8, 2007 Bookmark and Share Tungsten Diselenide A new insulating material with the lowest thermal conductivity ever measured for a fully dense solid has been created at the University of Oregon (UO) and tested at the XOR/UNI 33-BM beamline at the U.S. Department of Energy's Advanced Photon Source (APS) at Argonne. The research was carried out by collaborators from the UO, the University of Illinois at Urbana-Champaign, the Rensselaer Polytechnic Institute, and Argonne. While far from having immediate application, the principles involved, once understood, could lead to improved insulation for a wide variety of uses,

333

Constraints on topological order in Mott Insulators  

E-Print Network [OSTI]

We point out certain symmetry induced constraints on topological order in Mott Insulators (quantum magnets with an odd number of spin $\\tfrac{1}{2}$ per unit cell). We show, for example, that the double semion topological order is incompatible with time reversal and translation symmetry in Mott insulators. This sharpens the Hastings-Oshikawa-Lieb-Schultz-Mattis theorem for 2D quantum magnets, which guarantees that a fully symmetric gapped Mott insulator must be topologically ordered, but is silent on which topological order is permitted. An application of our result is the Kagome lattice quantum antiferromagnet where recent numerical calculations of entanglement entropy indicate a ground state compatible with either toric code or double semion topological order. Our result rules out the latter possibility.

Michael P. Zaletel; Ashvin Vishwanath

2014-10-10T23:59:59.000Z

334

Method of fabricating a multilayer insulation blanket  

DOE Patents [OSTI]

An improved multilayer insulation blanket for insulating cryogenic structures operating at very low temperatures is disclosed. An apparatus and method for fabricating the improved blanket are also disclosed. In the improved blanket, each successive layer of insulating material is greater in length and width than the preceding layer so as to accommodate thermal contraction of the layers closest to the cryogenic structure. The fabricating apparatus has a rotatable cylindrical mandrel having an outer surface of fixed radius that is substantially arcuate, preferably convex, in cross-section. The method of fabricating the improved blanket comprises (a) winding a continuous sheet of thermally reflective material around the circumference of the mandrel to form multiple layers, (b) binding the layers along two lines substantially parallel to the edges of the circumference of the mandrel, (c) cutting the layers along a line parallel to the axle of the mandrel, and (d) removing the bound layers from the mandrel.

Gonczy, John D. (Oak Lawn, IL); Niemann, Ralph C. (Downers Grove, IL); Boroski, William N. (Aurora, IL)

1993-01-01T23:59:59.000Z

335

Multilayer insulation blanket, fabricating apparatus and method  

DOE Patents [OSTI]

An improved multilayer insulation blanket for insulating cryogenic structures operating at very low temperatures is disclosed. An apparatus and method for fabricating the improved blanket are also disclosed. In the improved blanket, each successive layer of insulating material is greater in length and width than the preceding layer so as to accommodate thermal contraction of the layers closest to the cryogenic structure. The fabricating apparatus has a rotatable cylindrical mandrel having an outer surface of fixed radius that is substantially arcuate, preferably convex, in cross-section. The method of fabricating the improved blanket comprises (a) winding a continuous sheet of thermally reflective material around the circumference of the mandrel to form multiple layers, (b) binding the layers along two lines substantially parallel to the edges of the circumference of the mandrel, (c) cutting the layers along a line parallel to the axle of the mandrel, and (d) removing the bound layers from the mandrel.

Gonczy, John D. (Oak Lawn, IL); Niemann, Ralph C. (Downers Grove, IL); Boroski, William N. (Aurora, IL)

1992-01-01T23:59:59.000Z

336

Is graphene in vacuum an insulator?  

E-Print Network [OSTI]

We present evidence, from Lattice Monte Carlo simulations of the phase diagram of graphene as a function of the Coulomb coupling between quasiparticles, that graphene in vacuum is likely to be an insulator. We find a semimetal-insulator transition at $\\alpha_g^\\text{crit} = 1.11 \\pm 0.06$, where $\\alpha_g^{} \\simeq 2.16$ in vacuum, and $\\alpha_g^{} \\simeq 0.79$ on a SiO$_2^{}$ substrate. Our analysis uses the logarithmic derivative of the order parameter, supplemented by an equation of state. The insulating phase disappears above a critical number of four-component fermion flavors $4 < N_f^{\\text{crit}} < 6$. Our data are consistent with a second-order transition.

Joaquín E. Drut; Timo A. Lähde

2008-07-05T23:59:59.000Z

337

Nuclear reactor vessel fuel thermal insulating barrier  

DOE Patents [OSTI]

The reactor vessel of a nuclear reactor installation which is suspended from the cold leg nozzles in a reactor cavity is provided with a lower thermal insulating barrier spaced from the reactor vessel that has a hemispherical lower section that increases in volume from the center line of the reactor to the outer extent of the diameter of the thermal insulating barrier and smoothly transitions up the side walls of the vessel. The space between the thermal insulating harrier and the reactor vessel forms a chamber which can be flooded with cooling water through passive valving to directly cool the reactor vessel in the event of a severe accident. The passive inlet valve for the cooling water includes a buoyant door that is normally maintained sealed under its own weight and floats open when the cavity is Hooded. Passively opening steam vents are also provided.

Keegan, C. Patrick; Scobel, James H.; Wright, Richard F.

2013-03-19T23:59:59.000Z

338

Thermal radiative properties of phenolic foam insulation  

Science Journals Connector (OSTI)

Thermal insulation has long been an important subject in engineering. Foam insulations have become the most widely used insulations due to their low cost and ease of procesing. In recent years, phenolic foams find increasing applications because of their fire retardation. This paper presents experimental results of thermal radiative properties of phenolic foams, with or without activated carbon. Transmittance spectra were first taken using FTIR for samples of various densities. Extinction coefficient spectra were then obtained by applying Beer's law. Finally, by using the diffusion approximation, the Rosseland mean extinction coefficients and radiative thermal conductivities were obtained for various temperatures. Results show that the extinction coefficient increases with sample density. The addition of activated carbon increases the extinction coefficient slightly.

Chung-jen Tseng; Kuang-te Kuo

2002-01-01T23:59:59.000Z

339

Magnetically insulated theory with both electron and ion flows  

SciTech Connect (OSTI)

Both the ion emission from anode surface and the electron emission from cathode surface may occur in the magnetically insulated transmission line (MITL) with a very high pulsed power and a very large current density. A model for the MITL with both electron and ion flow is developed. In this model, physical quantities (such as space-charge sheath thicknesses and flow currents) in the MITL are theoretically analyzed, and the specific expression for the voltage on the line by the terms of currents is derived. Furthermore, particle-in-cell simulations are carried out to verify the theoretical results.

Wang Huihui; Meng Lin; Liu Dagang; Liu Laqun; Yang Chao [School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 (China)

2012-10-15T23:59:59.000Z

340

Massive Dirac surface states in topological insulator/magnetic insulator heterostructures  

Science Journals Connector (OSTI)

Topological insulators are new states of matter with a bulk gap and robust gapless surface states protected by time-reversal symmetry. When time-reversal symmetry is broken, the surface states are gapped, which induces a topological response of the system to electromagnetic field—the topological magnetoelectric effect. In this paper we study the behavior of topological surface states in heterostructures formed by a topological insulator and a magnetic insulator. Several magnetic insulators with compatible magnetic structure and relatively good lattice matching with topological insulators Bi2Se3, Bi2Te3, Sb2Te3 are identified, and the best candidate material is found to be MnSe, an antiferromagnetic insulator. We perform first-principles calculations in Bi2Se3/MnSe superlattices and obtain the surface state band structure. The magnetic exchange coupling with MnSe induces a gap of ?54 meV at the surface states. In addition we tune the distance between Mn ions and the topological insulator surface to study the distance dependence of the exchange coupling.

Weidong Luo and Xiao-Liang Qi

2013-02-19T23:59:59.000Z

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


341

Test Report: Cost Effective Foundation Insulation  

SciTech Connect (OSTI)

A field experiment was conducted to demonstrate and quantify the thermal effectiveness of rigid insulation board when installed on the exterior of a buried concrete foundation wall. A heated, insulated box was constructed along one wall of an existing, unheated building to simulate the living space of a home. The crawl space beneath the living space was divided into two sections. One featured external foundation insulation, while the other side had none. 36 temperature and heat flux sensors were installed at predetermined locations to measure the temperature profile and heat flow out of the living space. The temperature profile through the foundation was then used to calculate the total heat flow out of the foundation for both cases. This experiment showed that a significant energy savings is available with exterior foundation insulation. Over the course of 3 months, the heat-loss differential between the insulated and non-insulated foundations was 4.95 kilowatt-hours per lineal foot of foundation wall, for a ratio of 3:1. For a 2200 sq. ft home with a foundation perimeter 200 ft. long, this would amount to a savings of 990 kW-hrs in just 3 months, or 330 kW-hrs per month. Extrapolating to an 8-month heating year, we would expect to save over 2640 kW-hrs per year for such a home. The savings for a basement foundation, rather than a crawlspace, would be approach twice that amount, nearing 5280 kW-hr per year. Because these data were not collected during the coldest months of the year, they are conservative, and greater savings may be expected during colder periods.

Jeffrey M. Lacy; T. E. Rahl; G. A. Twitchell; R. G. Kobbe

2003-06-01T23:59:59.000Z

342

Development of New Generation of Thermally-Enhanced Fiber Glass Insulation  

SciTech Connect (OSTI)

This report presents experimental and numerical results from thermal performance studies. The purpose of this Cooperative Research and Development Agreement (CRADA) between UT-Battelle, LLC and John s Manville was to design a basic concept of a new generation of thermally-enhanced fiber glass insulation. Different types of Phase Change Materials (PCMs) have been tested as dynamic components in buildings during the last 4 decades. Most historical studies have found that PCMs enhance building energy performance. Some PCM-enhanced building materials, like PCM-gypsum boards or PCM-impregnated concretes have already found their limited applications in different countries. Today, continued improvements in building envelope technologies suggest that throughout Southern and Central U.S. climates, residences may soon be routinely constructed with PCM in order to maximize insulation effectiveness and maintain low heating and cooling loads. The proposed thermally-enhanced fiber glass insulation will maximize this integration by utilizing a highly-efficient building envelope with high-R thermal insulation, active thermal mass and superior air-tightness. Improved thermal resistance will come from modifications in infrared internal characteristics of the fiber glass insulation. Thermal mass effect can be provided by proprietary thermally-active microencapsulated phase change material (PCM). Work carried out at the Oak Ridge National Laboratory (ORNL) on the CRADA is described in this report.

Kosny, Jan [ORNL; Yarbrough, David W [ORNL; Childs, Phillip W [ORNL; Miller, William A [ORNL; Atchley, Jerald Allen [ORNL; Shrestha, Som S [ORNL

2010-03-01T23:59:59.000Z

343

Development and Testing of Insulated Drill Pipe  

SciTech Connect (OSTI)

This project has comprised design, analysis, laboratory testing, and field testing of insulated drill pipe (IDP). This paper will briefly describe the earlier work, but will focus on results from the recently-completed field test in a geothermal well. Field test results are consistent with earlier analyses and laboratory tests, all of which support the conclusion that insulated drill pipe can have a very significant effect on circulating fluid temperatures. This will enable the use of downhole motors and steering tools in hot wells, and will reduce corrosion, deterioration of drilling fluids, and heat-induced failures in other downhole components.

Champness, T.; Finger, J.; Jacobson, R.

1999-07-07T23:59:59.000Z

344

Estimating the Payback Period of Additional Insulation | Department of  

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

the Payback Period of Additional Insulation the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation June 24, 2012 - 1:17pm Addthis Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. What does this mean for me? Even if you hire a contractor to do the work, adding insulation to your home will likely have an attractive payback. If you can gather the information and plug it into an equation, you can determine the payback of adding insulation to your home. Use the equation below to estimate the cost effectiveness of adding insulation in terms of the "years to payback" for savings in heating costs.

345

Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch  

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

EI2 Insulation EI2 Insulation Helps Anxious Pooch Find Calm in the Storm to someone by E-mail Share Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on Facebook Tweet about Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on Twitter Bookmark Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on Google Bookmark Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on Delicious Rank Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on Digg Find More places to share Better Buildings Neighborhood Program: EI2 Insulation Helps Anxious Pooch Find Calm in the Storm on AddThis.com...

346

Classification and characterization of topological insulators and superconductors  

E-Print Network [OSTI]

Weak topological insulators (WTI) . . . . . 1.4 Topologicalweak topological insulators (WTI). The surfaces of STIs haveSTI STM TI TRIM/TRIMs TRS TKNN VPT WTI one-dimension, two-

Mong, Roger

2012-01-01T23:59:59.000Z

347

Heat transport by residual gases in multilayer vacuum insulation  

Science Journals Connector (OSTI)

The results of an experimental investigation of residual gas heat-transfer in multilayer vacuum insulation are reported. The “thermal paradox” observed ... variation of the residual gas pressure in the insulation

R. S. Mikhal'chenko; A. G. Gerzhin; V. T. Arkhipov…

1968-01-01T23:59:59.000Z

348

Effects of foamed plastic insulation on severity of room fires  

Science Journals Connector (OSTI)

The results of a series of full scale room burn experiments with foamed plastic insulation in two walls indicate that the severity ... appear to be increased by the addition of foamed plastic insulation.

K. K. Choi

1986-02-01T23:59:59.000Z

349

Polyurethane and Polyisocyanurate Foams in External Tank Cryogenic Insulation  

Science Journals Connector (OSTI)

External tanks of the spacecrafts need not only efficient, but also safe cryogenic insulation materials and the issues of their development ... , polyurethane (PUR) or polyisocyanurate (PIR) foams’ cryogenic insulation

U. Stirna; I. Beverte; V. Yakushin; U. Cabulis

2013-01-01T23:59:59.000Z

350

Bubbles in Insulating Liquids: Stability in an Electric Field  

Science Journals Connector (OSTI)

...July 1964 research-article Bubbles in Insulating Liquids: Stability in an Electric Field C. G...Krasucki It is shown that a bubble of gas or liquid, immersed...of incompressible (liquid) bubbles immersed in an insulating liquid...

1964-01-01T23:59:59.000Z

351

Estimating the Payback Period of Additional Insulation | Department of  

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

Estimating the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation June 24, 2012 - 1:17pm Addthis Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. What does this mean for me? Even if you hire a contractor to do the work, adding insulation to your home will likely have an attractive payback. If you can gather the information and plug it into an equation, you can determine the payback of adding insulation to your home. Use the equation below to estimate the cost effectiveness of adding insulation in terms of the "years to payback" for savings in heating costs.

352

Performance of Titanium-Oxide/Polymer Insulation in Bi-2212/Ag-alloy Round Wire Wound Superconducting Coils  

E-Print Network [OSTI]

Conductor insulation is one of the key components needed to make Ag-alloy clad Bi2Sr2CaCu2O8+x (Bi-2212/Ag) superconducting round wire (RW) successful for high field magnet applications as dielectric standoff and high winding current densities (Jw) directly depend on it. In this study, a TiO2/polymer insulation coating developed by nGimat LLC was applied to test samples and a high field test coil. The insulation was investigated by differential thermal analysis (DTA), thermo-gravimetric analysis (TGA), scanning electron microscopy (SEM), dielectric properties measurement, and transport critical current (Ic) properties measurement. About 29% of the insulation by weight is polymer. When the Bi-2212/Ag wire is full heat treated, this decomposes with slow heating to 400{\\deg}C in pure O2. After the full reaction, we found that the TiO2 did not degrade the critical current properties, adhered well to the conductor, and provided a breakdown voltage of >100 V, which allowed the test coil to survive quenching in 31.2 T background field, while providing a 2.6 T field increment. For Bi-2212/Ag RW with a typical diameter of 1.0-1.5 mm, this ~15 um thick insulation allows a very high coil packing factor of ~0.74, whereas earlier alumino-silicate braid insulation only allows packing factors of 0.38-0.48.

Peng Chen; Ulf P Trociewitz; Matthieu Dalban-Canassy; Jianyi Jiang; Eric E Hellstrom; David C Larbalestier

2013-03-20T23:59:59.000Z

353

Gas insulated transmission line having tapered particle trapping ring  

DOE Patents [OSTI]

A gas-insulated transmission line includes an outer sheath, an inner conductor, insulating supports and an insulating gas. A particle-trapping ring is secured to each insulating support, and it is comprised of a central portion and two tapered end portions. The ends of the particle trapping ring have a smaller diameter than the central portion of the ring, so as to enable the use of the particle trapping ring in a curved transmission line.

Cookson, Alan H. (Pittsburgh, PA)

1982-01-01T23:59:59.000Z

354

Molecular Cell Mode of Regulation and the Insulation  

E-Print Network [OSTI]

Molecular Cell Article Mode of Regulation and the Insulation of Bacterial Gene Expression Vered.molcel.2012.04.032 SUMMARY A gene can be said to be insulated from environ- mental variations if its the insulation of the lac promoter of E. coli and of synthetic constructs in which the transcription factor CRP

355

MOTT INSULATORS, SPIN LIQUIDS AND QUANTUM DISORDERED SUPERCONDUCTIVITY  

E-Print Network [OSTI]

COURSE 7 MOTT INSULATORS, SPIN LIQUIDS AND QUANTUM DISORDERED SUPERCONDUCTIVITY MATTHEW P.A. FISHER insulators and quantum magnetism 583 3.1 Spin models and quantum magnetism . . . . . . . . . . . . . . . . . . . . . . . . . . . . 637 #12;MOTT INSULATORS, SPIN LIQUIDS AND QUANTUM DISORDERED SUPERCONDUCTIVITY Matthew P.A. Fisher

356

Insulation of the ?F Regulatory System in Bacillus subtilis  

Science Journals Connector (OSTI)

...for Microbiology NOTE GENE REGULATION Insulation of the sF Regulatory System in Bacillus...kinases and phosphatases. We report that insulation of the sF pathway from the sB pathway...the sB pathway. We propose that this insulation is achieved both by the action of the...

Karen Carniol; Tae-Jong Kim; Chester W. Price; Richard Losick

2004-07-01T23:59:59.000Z

357

Topological insulators and superconductors Xiao-Liang Qi  

E-Print Network [OSTI]

Topological insulators and superconductors Xiao-Liang Qi Microsoft Research, Station Q, Elings Hall, California 94305, USA (Received 2 August 2010; published 14 October 2011) Topological insulators are new states of quantum matter which cannot be adiabatically connected to conventional insulators

Wu, Zhigang

358

Effect of relative humidity on fungal colonization of fiberglass insulation.  

Science Journals Connector (OSTI)

...on fungal colonization of fiberglass insulation. I M Ezeonu J A Noble R B Simmons D...on fungal colonization of fiberglass insulation. | Fiberglass duct liners and fiberglass...on Fungal Colonization of Fiberglass Insulation I. M. EZEONU,1 J. A. NOBLE...

I M Ezeonu; J A Noble; R B Simmons; D L Price; S A Crow; D G Ahearn

1994-06-01T23:59:59.000Z

359

THERMAL CONDUCTIVITY OF POWDER INSULATIONS FOR CRYOGENIC STORAGE  

E-Print Network [OSTI]

THERMAL CONDUCTIVITY OF POWDER INSULATIONS FOR CRYOGENIC STORAGE VESSELS Y. S. Choi1 '3 , M. N), powder insulation, and foam insulation, are used in the cryogenic storage vessels. Among CP823, Advances in Cjyogenie Engineering: Transactions of the Cryogenic Engineering Conference - CEC, Vol. 51, edited by J. G

Chang, Ho-Myung

360

Vacuum insulation tandem accelerator for B. Bayanov1  

E-Print Network [OSTI]

273 Vacuum insulation tandem accelerator for NCT B. Bayanov1 , Yu. Belchenko1 , V. Belov1 , G. Fig. 1 shows the construction of vacuum insulation tandem accelerator developed at BINP, as a base accelerator with vacuum insulation. After charge- exchange of negative hydrogen ion in proton inside charge

Taskaev, Sergey Yur'evich

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


361

Study on the heat transfer of complex-vacuum-multilayer-insulation tank after sudden loss of insulation vacuum  

Science Journals Connector (OSTI)

This paper experimentally and theoretically investigated heat transfer process of complex-vacuum-multilayer-insulation cryogenic tank after a sudden loss of insulation vacuum (SLIV). The experiments were conducte...

M. Zhu; R. S. Wang

2012-11-01T23:59:59.000Z

362

TRANSITION DE MOTT METAL-INSULATOR TRANSITIONS  

E-Print Network [OSTI]

predominantly non-trivalent ions favor the metallicstate. I. Introduction. -Transition metal oxides form a class that such a transition would be dis- continuous as a function of volume [8], and he later proposed a phase diagramTRANSITION DE MOTT METAL-INSULATOR TRANSITIONS IN TRANSITION METAL OXIDES by D. B. McWHAN, A. MENTH

Paris-Sud XI, Université de

363

Insulated dipole antennas for heating oil shale  

Science Journals Connector (OSTI)

Insulated dipole antennas in the HF band are potentially useful in heating shale i n s i t u to extract oil. To help evaluate the efficiency of such antennas the spatial distribution of the power absorbed per unit volume in the shale is computed.

John P. Casey; Rajeev Bansal

1987-01-01T23:59:59.000Z

364

Finite element analysis of substation composite insulators  

Science Journals Connector (OSTI)

Composite insulators are rapidly replacing their porcelain counterparts in electrical substation applications. These insulators consist of a glass-reinforced polymer (GRP) rod, with two metal end fittings radially crimped onto the ends of the rod during assembly. In this paper, axisymmetric finite element models are developed to evaluate the mechanical performance of composite insulators under externally applied axial compression. The analyses are performed by assuming both a perfectly bonded interface between the composite rod and the end fittings, and an imperfect interface which permits large relative sliding with Coulomb friction. Results indicate that the perfect interface model is unrealistic since it predicts singular stresses at the interface comer and an overall linear structural response. On the other hand, the imperfect interface model is found to simulate accurately the structural non-linearity caused by relative sliding of the GRP rod within the end fittings. The imperfect interface model has therefore been used to evaluate the effects of interface friction, and the extent of crimping, on the maximum load-bearing capacity of substation composite insulators.

A. Bansal; A. Schubert; M.V. Balakrishnan; M. Kumosa

1995-01-01T23:59:59.000Z

365

ASBESTOS PIPE-INSULATION REMOVAL ROBOT SYSTEM  

SciTech Connect (OSTI)

This final topical report details the development, experimentation and field-testing activities for a robotic asbestos pipe-insulation removal robot system developed for use within the DOE's weapon complex as part of their ER and WM program, as well as in industrial abatement. The engineering development, regulatory compliance, cost-benefit and field-trial experiences gathered through this program are summarized.

Unknown

2000-09-15T23:59:59.000Z

366

Laminated insulators having heat dissipation means  

DOE Patents [OSTI]

A laminated body is provided with heat dissipation capabilities. The insulator body is formed by dielectric layers interleaved with heat conductive layers, and bonded by an adhesive to form a composite structure. The heat conductive layers include provision for connection to an external thermal circuit.

Niemann, R.C.; Mataya, K.F.; Gonczy, J.D.

1980-04-24T23:59:59.000Z

367

Noise and the Sound Insulation of Buildings  

Science Journals Connector (OSTI)

...Noise and the Sound Insulation of Buildings F. Ingerslev It is claimed that noise...well-being. An outstanding task for the building industry in the 1980s is to ensure a proper noise climate in new buildings. The target must be to obtain a noise...

1972-01-01T23:59:59.000Z

368

High Temperature Structural Foam  

Science Journals Connector (OSTI)

The Aerospace Industry is experiencing growing demand for high performance polymer foam. The X-33 program needs structural foam insulation capable of retaining its strength over a wide range of environmental conditions. The High Speed Research Program ...

Weiser Erik S.; Baillif Faye F.; Grimsley Brian W.; Marchello Joseph M.

1998-05-01T23:59:59.000Z

369

A Novel Method for Transport and Cooling of a Muon Beam Based on Magnetic Insulation  

SciTech Connect (OSTI)

Unwanted field emission is a well known problem for high-gradient accelerating structures as it can cause damage and initiate breakdown. Recent experiments indicated that the deleterious effects of field-emission are greatly enhanced in the presence of external magnetic fields. In the context of designing a muon accelerator this imposes numerous constraints since rf cavities need to operate within strong magnetic fields in order to successfully transport the beam. Here, a novel design of a magnetically insulated cavity in which the walls are parallel to the magnetic field lines is presented. We show that with magnetic insulation, damage from field emission can be significantly suppressed. Effects of coil positioning errors on the cavity performance are discussed and the required magnetic field strength to achieve insulation is estimated. We present a conceptual design of a muon collider cooling lattice with magnetic insulated cavities and cross-check its performance to the one with pillbox cavities. Finally an experiment to test magnetic insulation is described.

Stratakis, Diktys; Gallardo, Juan C.; Palmer, Robert B. [Department of Physics, Brookhaven National Laboratory, Upton, NY 11973 (United States)

2010-11-04T23:59:59.000Z

370

Cryogenic sandwich-type insulation board composed of E-glass/epoxy composite and polymeric foams  

Science Journals Connector (OSTI)

Liquefied natural gas (LNG) is a clean energy source whose consumption has recently increased greatly due to the failure of a nuclear power plant. LNG is transported with LNG carriers that store LNG at the cryogenic temperature of ?163 °C. Because the cargo containment system (CCS) of LNG carriers should be operated for more than 40 years at the cryogenic temperature, its reliability against thermal and mechanical loads should be guaranteed without compromising its thermal insulation performance. For reasons of both mechanical and thermal performance, the faces and cores of conventional insulation boards are made of plywood and high-density (110 kg/m3) polymeric. In this study, an advanced sandwich-type insulation board composed of E-glass/epoxy composite faces and a low-density polymeric foam core with a composite box configuration was developed to seal a foam blowing gas of low thermal conductivity. The mechanical performance of the advanced sandwich-type insulation board was simulated using the finite element analysis (FEA) software ABAQUS (SIMULIA, USA). The sealing performance of the composite box was also investigated experimentally. Finally, the thermal performance of the advanced sandwich-type insulation board was numerically investigated using thermal conductivity equations.

Ilbeom Choi; Young Ho Yu; Dai Gil Lee

2013-01-01T23:59:59.000Z

371

Fabrication, Dynamics, and Electrical Properties of Insulated SPM Probes for Electrical and Electromechanical Imaging in Liquids  

SciTech Connect (OSTI)

Insulated cantilever probes with a high aspect ratio conducting apex have been fabricated and their dynamic and electrical properties analyzed. The cantilevers were coated with silicon dioxide and a via was fabricated through the oxide at the tip apex and backfilled with tungsten to create an insulated probe with a conducting tip. The stiffness and Q-factor of the cantilevers increased after the modifications and their resonances shifted to higher frequencies. The coupling strength between the cantilever and the coating are determined. The applications to conductive and electromechanical imaging of ferroelectric domains are illustrated, and a probe apex repair process is demonstrated.

Rodriguez, Brian J [ORNL; Jesse, Stephen [ORNL; Seal, Katyayani [ORNL; Baddorf, Arthur P [ORNL; Kalinin, Sergei V [ORNL; Rack, Philip D [ORNL

2007-01-01T23:59:59.000Z

372

Specific features of the photoconductivity of semi-insulating cadmium telluride  

SciTech Connect (OSTI)

The effect of local illumination providing a high level of free-carrier injection on the conductivity of a sample of semi-insulating cadmium telluride and on the properties of ohmic contacts to the sample is studied. It is found that, irrespective of the illumination region, the contact resistance of ohmic contacts decreases and the concentration of majority carriers in the sample grows in proportion to the illumination intensity. It is shown that inherent heterogeneities in crystals of semi-insulating semiconductors can be studied by scanning with a light probe.

Golubyatnikov, V. A.; Grigor’ev, F. I.; Lysenko, A. P., E-mail: aplysenko@hse.ru; Strogankova, N. I.; Shadov, M. B. [National Research University Higher School of Economics, Moscow Institute of Electronics and Mathematics (Russian Federation); Belov, A. G. [OAO GIREDMET State Research and Design Institute of the Rare-Metal Industry (Russian Federation)

2014-12-15T23:59:59.000Z

373

Spray-on foam insulations for launch vehicle cryogenic tanks  

Science Journals Connector (OSTI)

Spray-on foam insulation (SOFI) has been developed for use on the cryogenic tanks of space launch vehicles beginning in the 1960s with the Apollo program. The use of SOFI was further developed for the Space Shuttle program. The External Tank (ET) of the Space Shuttle, consisting of a forward liquid oxygen tank in line with an aft liquid hydrogen tank, requires thermal insulation over its outer surface to prevent ice formation and avoid in-flight damage to the ceramic tile thermal protection system on the adjacent Orbiter. The insulation also provides system control and stability throughout the lengthy process of cooldown, loading, and replenishing the tank. There are two main types of SOFI used on the ET: acreage (with the rind) and closeout (machined surface). The thermal performance of the seemingly simple SOFI system is a complex array of many variables starting with the large temperature difference of 200–260 K through the typical 25-mm thickness. Environmental factors include air temperature and humidity, wind speed, solar exposure, and aging or weathering history. Additional factors include manufacturing details, launch processing operations, and number of cryogenic thermal cycles. The study of the cryogenic thermal performance of SOFI under large temperature differentials is the subject of this article. The amount of moisture taken into the foam during the cold soak phase, termed Cryogenic Moisture Uptake, must also be considered. The heat leakage rates through these foams were measured under representative conditions using laboratory standard liquid nitrogen boiloff apparatus. Test articles included baseline, aged, and weathered specimens. Testing was performed over the entire pressure range from high vacuum to ambient pressure. Values for apparent thermal conductivity and heat flux were calculated and compared with prior data. As the prior data of record was obtained for small temperature differentials on non-weathered foams, analysis of the different methods is provided. Recent advancements and applications of SOFI systems on future launch vehicles and spacecraft are also addressed.

J.E. Fesmire; B.E. Coffman; B.J. Meneghelli; K.W. Heckle

2012-01-01T23:59:59.000Z

374

List of Equipment Insulation Incentives | Open Energy Information  

Open Energy Info (EERE)

Insulation Incentives Insulation Incentives Jump to: navigation, search The following contains the list of 242 Equipment Insulation Incentives. CSV (rows 1 - 242) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP Ohio - Commercial Energy Efficiency Rebate Program (Ohio) Utility Rebate Program Ohio Commercial Fed. Government Industrial Institutional Local Government Nonprofit Schools State Government Central Air conditioners Chillers Custom/Others pending approval Energy Mgmt. Systems/Building Controls Equipment Insulation Heat pumps Lighting Lighting Controls/Sensors Motor VFDs Motors Programmable Thermostats Refrigerators Yes AEP Public Service Company of Oklahoma - Residential Efficiency Rebate Program (Oklahoma) Utility Rebate Program Oklahoma Residential Building Insulation

375

Geometric Focusing of 20-GW Proton Beams with Use of a Magnetically Insulated Diode  

Science Journals Connector (OSTI)

We have obtained initial geometric-focusing results using a high-current (? 100 kA) magnetically insulated diode. At the line focus, current densities over 300 A/cm2 have been obtained with a radial compression of about 10. Results for propagation of the intense beams are in excellent agreement with geometric single-particle predictions.

M. Greenspan; S. Humphries; Jr.; J. Maenchen; R. N. Sudan

1977-07-04T23:59:59.000Z

376

Where to Insulate in a Home | Department of Energy  

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

Where to Insulate in a Home Where to Insulate in a Home Where to Insulate in a Home November 26, 2013 - 1:34pm Addthis Examples of where to insulate. 1. In unfinished attic spaces, insulate between and over the floor joists to seal off living spaces below. (1A) attic access door 2. In finished attic rooms with or without dormer, insulate (2A) between the studs of "knee" walls, (2B) between the studs and rafters of exterior walls and roof, (2C) and ceilings with cold spaces above. (2D) Extend insulation into joist space to reduce air flows. 3. All exterior walls, including (3A) walls between living spaces and unheated garages, shed roofs, or storage areas; (3B) foundation walls above ground level; (3C) foundation walls in heated basements, full wall either interior or exterior.

377

Savings Project: Insulate Hot Water Pipes for Energy Savings | Department  

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

Insulate Hot Water Pipes for Energy Savings Insulate Hot Water Pipes for Energy Savings Savings Project: Insulate Hot Water Pipes for Energy Savings Addthis Project Level Medium Energy Savings $8-$12 annually Time to Complete 3 hours for a small house Overall Cost $10-$15 Insulating water pipes can save you water, energy, and money. | Photo courtesy of iStockphoto.com/nsj-images Insulating water pipes can save you water, energy, and money. | Photo courtesy of iStockphoto.com/nsj-images Insulating your hot water pipes reduces heat loss and can raise water temperature 2°F-4°F hotter than uninsulated pipes can deliver, allowing for a lower water temperature setting. You also won't have to wait as long for hot water when you turn on a faucet or showerhead, which helps conserve water. Paying for someone to insulate your pipes-as a project on its own-may

378

Where to Insulate in a Home | Department of Energy  

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

Where to Insulate in a Home Where to Insulate in a Home Where to Insulate in a Home November 26, 2013 - 1:34pm Addthis Examples of where to insulate. 1. In unfinished attic spaces, insulate between and over the floor joists to seal off living spaces below. (1A) attic access door 2. In finished attic rooms with or without dormer, insulate (2A) between the studs of "knee" walls, (2B) between the studs and rafters of exterior walls and roof, (2C) and ceilings with cold spaces above. (2D) Extend insulation into joist space to reduce air flows. 3. All exterior walls, including (3A) walls between living spaces and unheated garages, shed roofs, or storage areas; (3B) foundation walls above ground level; (3C) foundation walls in heated basements, full wall either interior or exterior.

379

Pipeline system insulation: Thermal insulation and corrosion prevention. (Latest citations from the Rubber and Plastics Research Association database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning thermal and corrosion insulation of pipeline systems used to transport liquids and gases. Topics include thermal aging of polyurethane used for foam heating pipes, extrusion film pipeline insulation materials and processes, flexible expanded nitrile rubber pipeline insulation with Class 1 fire rating, and underground fiberglass reinforced polyester insulated pipeline systems. Applications in solar heating systems; underground water, oil, and gas pipelines; interior hot and cold water lines under seawater; and chemical plant pipeline system insulation are included. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1995-11-01T23:59:59.000Z

380

Pipeline system insulation: Thermal insulation and corrosion prevention. (Latest citations from the Rubber and Plastics Research Association database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning thermal and corrosion insulation of pipeline systems used to transport liquids and gases. Topics include thermal aging of polyurethane used for foam heating pipes, extrusion film pipeline insulation materials and processes, flexible expanded nitrile rubber pipeline insulation with Class 1 fire rating, and underground fiberglass reinforced polyester insulated pipeline systems. Applications in solar heating systems; underground water, oil, and gas pipelines; interior hot and cold water lines under seawater; and chemical plant pipeline system insulation are included. (Contains 250 citations and includes a subject term index and title list.)

NONE

1995-01-01T23:59:59.000Z

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


381

Pipeline system insulation: Thermal insulation and corrosion prevention. (Latest citations from the Rubber and Plastics Research Association database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning thermal and corrosion insulation of pipeline systems used to transport liquids and gases. Topics include thermal aging of polyurethane used for foam heating pipes, extrusion film pipeline insulation materials and processes, flexible expanded nitrile rubber pipeline insulation with Class 1 fire rating, and underground fiberglass reinforced polyester insulated pipeline systems. Applications in solar heating systems; underground water, oil, and gas pipelines; interior hot and cold water lines under seawater; and chemical plant pipeline system insulation are included. (Contains 250 citations and includes a subject term index and title list.)

Not Available

1994-05-01T23:59:59.000Z

382

Engineering design of the Z magnetically-insulated transmission lines and insulator stack  

SciTech Connect (OSTI)

A 3.3 m diameter cylindrical insulator stack and a set of 3 m diameter conical magnetically insulated transmission lines (MITLs) were built for the Z accelerator. The 1.7 m tall insulator stack operates at {approx}20 MA and 2.5-3.5 MV, and was instrumented with 12 current and 24 voltage monitors. The insulator stack was concentrically and azimuthally aligned within 1.5 mm. The stack, containing 22 crosslinked polystyrene insulators and 18 grading rings, was designed to provide vertical stability for the MITLs and to resist radial buckling. 2-D and 3-D static finite element analyses (FEA) were used in designing the MITLs to limit gravity deflections to less than .25 mm. 2-D FEA dynamic analyses were done to predict motion and to help design features to restrict damage. Each MITL is divided into four concentric zones which fasten together in a way which facilitates fabrication, limits the extent of possible damage and allows for future changes at minimal cost. The tapered MITLs are supported by feedthrough rings in the insulator stack so that the gaps at small radius are adjustable from 0 to 22 mm. The MITL anodes were instrumented with 24 current monitors and have 48 additional diagnostic locations available. The MITLs were fabricated from 304L stainless steel except the outer anode sections, which were made from 6061-T6 aluminum alloy. Procedures were developed for fabrication of the large and small diameter MITL cones, as well as for the feedthrough rings and grading rings of the stack. The power-flow surfaces were successfully machined to within {+-}.25 mm of the specified contours. A large, multi-trolley MITL handling system was designed to allow for removal, cleaning and replacement of the MITLs for each shot, at a shot rate of 1.5 shots/day. Additional equipment allows for cleaning of the insulators.

Ives, H.C.; Van De Valde, D.M. [EG& G MSI, Albuquerque, NM (United States); Long, F.W.; Smith, J.W. [Sandia National Labs., Albuquerque, NM (United States)] [and others

1997-08-01T23:59:59.000Z

383

Nano Insulation Materials: Synthesis and Life Cycle Assessment  

Science Journals Connector (OSTI)

Abstract The application of manufactured nanomaterials provides not only advantages resulting from their unique properties, but also disadvantages derived from the possible high energy use and CO2 burden related to their manufacture, operation, and disposal. It is therefore important to evaluate the trade-offs of process economics with the associated environmental impacts in order to strengthen the existing advantages while counteracting disadvantages of nanomaterials. This is of particular importance at the early stage of the development, where different synthetic approaches with different energy and environmental impacts may be employed. We discuss here the importance of life cycle assessment (LCA) on the synthesis of nano insulation materials (NIMs) consisting of hollow silica nanospheres (HSNSs). The results indicate that the use of recyclable and environmentally friendly raw materials can improve greatly the process environmental footprints. New synthetic procedures are developed accordingly for HSNS \\{NIMs\\} with improved environmental features as well as thermal insulation performance. © 2014 The Authors. Published by Elsevier B.V. Selection and peer-review under responsibility of the International Scientific Committee of the 21st CIRP Conference on Life Cycle Engineering in the person of the Conference Chair Prof. Terje K. Lien.

Tao Gao; Linn Ingunn C. Sandberg; Bjřrn Petter Jelle

2014-01-01T23:59:59.000Z

384

Topological Response Theory of Doped Topological Insulators  

Science Journals Connector (OSTI)

We generalize the topological response theory of three-dimensional topological insulators (TI) to metallic systems—specifically, doped TI with finite bulk carrier density and a time-reversal symmetry breaking field near the surface. We show that there is an inhomogeneity-induced Berry phase contribution to the surface Hall conductivity that is completely determined by the occupied states and is independent of other details such as band dispersion and impurities. In the limit of zero bulk carrier density, this intrinsic surface Hall conductivity reduces to the half-integer quantized surface Hall conductivity of TI. Based on our theory we predict the behavior of the surface Hall conductivity for a doped topological insulator with a top gate, which can be directly compared with experiments.

Maissam Barkeshli and Xiao-Liang Qi

2011-11-07T23:59:59.000Z

385

Apparatus for insulating windows and the like  

DOE Patents [OSTI]

Apparatus for insulating window openings through walls and the like includes a thermal shutter, a rail for mounting the shutter adjacent to the window opening and a coupling for connecting the shutter to the rail. The thermal shutter includes an insulated panel adhered to frame members which surround the periphery of the panel. The frame members include a hard portion for providing the frame and a soft portion for providing a seal with that portion of the wall adjacent to the periphery of the opening. The coupling means is preferably integral with the attachment rail. According to a preferred embodiment, the coupling means includes a continuous hinge of reduced thickness. The thermal shutter can be permanently attached, hinged, bi-folded, or sliding with respect to the window and wall. A distribution method is to market the apparatus in kit'' form. 11 figs.

Mitchell, R.A.

1984-06-19T23:59:59.000Z

386

Apparatus for insulating windows and the like  

DOE Patents [OSTI]

Apparatus for insulating window openings through walls and the like includes a thermal shutter, a rail for mounting the shutter adjacent to the window opening and a coupling for connecting the shutter to the rail. The thermal shutter includes an insulated panel adhered to frame members which surround the periphery of the panel. The frame members include a hard portion for providing the frame and a soft portion for providing a seal with that portion of the wall adjacent to the periphery of the opening. The coupling means is preferably integral with the attachment rail. According to a preferred embodiment, the coupling means includes a continuous hinge of reduced thickness. The thermal shutter can be permanently attached, hinged, bi-folded, or sliding with respect to the window and wall. A distribution method is to market the apparatus in "kit" form.

Mitchell, Robert A. (R.D. #1, Box 462-A, Voorheesville, NY 12186)

1984-01-01T23:59:59.000Z

387

Contaminant trap for gas-insulated apparatus  

DOE Patents [OSTI]

A contaminant trap for a gas-insulated electrical conductor is provided. A resinous dielectric body such as Kel-F wax, grease or other sticky polymeric or oligomeric compound is disposed on the inside wall of the outer housing for the conductor. The resinous body is sufficiently sticky at ambient temperatures to immobilize contaminant particles in the insulating gas on the exposed surfaces thereof. An electric resistance heating element is disposed in the resinous body to selectively raise the temperature of the resinous body to a molten state so that the contaminant particles collected on the surface of the body sink into the body so that the surface of the resinous body is renewed to a particle-less condition and, when cooled, returns to a sticky collecting surface.

Adcock, James L. (Knoxville, TN); Pace, Marshall O. (Knoxville, TN); Christophorou, Loucas G. (Oak Ridge, TN)

1984-01-01T23:59:59.000Z

388

Widespread spin polarization effects in photoemission from topological insulators  

SciTech Connect (OSTI)

High-resolution spin- and angle-resolved photoemission spectroscopy (spin-ARPES) was performed on the three-dimensional topological insulator Bi{sub 2}Se{sub 3} using a recently developed high-efficiency spectrometer. The topological surface state's helical spin structure is observed, in agreement with theoretical prediction. Spin textures of both chiralities, at energies above and below the Dirac point, are observed, and the spin structure is found to persist at room temperature. The measurements reveal additional unexpected spin polarization effects, which also originate from the spin-orbit interaction, but are well differentiated from topological physics by contrasting momentum and photon energy and polarization dependencies. These observations demonstrate significant deviations of photoelectron and quasiparticle spin polarizations. Our findings illustrate the inherent complexity of spin-resolved ARPES and demonstrate key considerations for interpreting experimental results.

Jozwiak, C.; Chen, Y. L.; Fedorov, A. V.; Analytis, J. G.; Rotundu, C. R.; Schmid, A. K.; Denlinger, J. D.; Chuang, Y.-D.; Lee, D.-H.; Fisher, I. R.; Birgeneau, R. J.; Shen, Z.-X.; Hussain, Z.; Lanzara, A.

2011-06-22T23:59:59.000Z

389

Superconducting nano-layer coating without insulator  

E-Print Network [OSTI]

The superconducting nano-layer coating without insulator layer is studied. The magnetic-field distribution and the forces acting on a vortex are derived. Using the derived forces, the vortex-penetration field and the lower critical magnetic field can be discussed. The vortex-penetration field is identical with the multilayer coating, but the lower critical magnetic field is not. Forces acting on a vortex from the boundary of two superconductors play an important role in evaluations of the free energy.

Kubo, Takayuki

2014-01-01T23:59:59.000Z

390

Topological insulators with arbitrarily tunable entanglement  

E-Print Network [OSTI]

We elucidate how Chern and topological insulators fulfill an area law for the entanglement entropy. By explicit construction of a family of lattice Hamiltonians, we are able to demonstrate that the area law contribution can be tuned to an arbitrarily small value, but is topologically protected from vanishing exactly. We prove this by introducing novel methods to bound entanglement entropies from correlations using perturbation bounds, drawing intuition from ideas of quantum information theory. This rigorous approach is complemented by an intuitive understanding in terms of entanglement edge states. These insights have a number of important consequences: The area law has no universal component, no matter how small, and the entanglement scaling cannot be used as a faithful diagnostic of topological insulators. This holds for all Renyi entropies which uniquely determine the entanglement spectrum which is hence also non-universal. The existence of arbitrarily weakly entangled topological insulators furthermore opens up possibilities of devising correlated topological phases in which the entanglement entropy is small and which are thereby numerically tractable, specifically in tensor network approaches.

J. C. Budich; J. Eisert; E. J. Bergholtz

2013-11-13T23:59:59.000Z

391

Smoldering combustion hazards of thermal insulation materials  

SciTech Connect (OSTI)

Work on the smolder ignitability in cellulosic insulation and on thermal analytical characterization of the oxidation of this material is presented. Thermal analysis (TGA and DSC) shows that both retarded and unretarded cellulosic insulation oxidizes in two overall stages, both of which are exothermic. The second stage (oxidation of the char left as a residue of the first stage) is much more energetic on a unit mass basis than the first. However, kinetics and a sufficient exothermicity make the first stage responsible for ignition in most realistic circumstances. Existing smolder retardants such as boric acid have their major effect on the kinetics of the second oxidation stage and thus produce only a rather small (20/sup 0/C) increase in smolder ignition temperature. Several simplified analogs of attic insulations have been tested to determine the variability of minimum smolder ignition temperature. These employed planar or tubular constant temperature heat sources in a thermal environment quite similar to a realistic attic application. Go/no-go tests provided the borderline (minimum) ignition temperature for each configuration. The wide range (150/sup 0/C) of minimum ignition temperatures confirmed the predominant dependence of smolder ignition on heat flow geometry. Other factors (bulk density, retardants) produced much less effect on ignitability.

Ohlemiller, T.J.; Rogers, F.E.

1980-07-01T23:59:59.000Z

392

A High-Performance PHEV Battery Pack  

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

a reliable and highly efficient thermal management system Objective Simple Structure and Manufacturing Positive terminal Negative terminal Lead film (insulation tape) Stack and...

393

Thermal balance of a wall with PCM-enhanced thermal insulation  

SciTech Connect (OSTI)

ABSTRACT: PCM insulation mixtures function as lightweight thermal mass components. It is expected that these types of dynamic insulation systems will contribute to the objective of reducing energy use in buildings. In this paper, dynamic thermal properties of a material in which phase hange occurs are analyzed, using the temperature-dependent specific heat model. Integral formula for the total heat flow in finite time interval, across the surface of a slab of the phase change material, was derived. Simulations have been performed to analyze heat transfer through a light-weight wall assembly with PCM-enhanced insulation, in different external climate thermal conditions. Results of simulations indicate that for cyclic processes, the effect of PCM in an insulation layer results rather in time shifting of the heat flux extreme values than in reduction of the total heat flow. The heat gains maxima, resulting in high cooling loads, are shifted in time by about two hours and reduced about 15% to 30% for not very high external sol-air temperatures.

Kosny, Jan [ORNL] [ORNL; Kossecka, Elizabeth [Institute of Fundamental Technological Research, Polish Academy of Sciences] [Institute of Fundamental Technological Research, Polish Academy of Sciences; Williams, Teresa [ORNL] [ORNL

2010-01-01T23:59:59.000Z

394

Electrically insulating films deposited on V-4%Cr-4%Ti by reactive CVD  

SciTech Connect (OSTI)

In the design of liquid-metal blankets for magnetic fusion reactors, corrosion resistance of structural materials and the magnetohydrodynamic forces and their influence on thermal hydraulics and corrosion are major concerns. Electrically insulating CaO films deposited on V-4%Cr-4%Ti exhibit high-ohmic insulator behavior even though a small amount of vanadium from the alloy become incorporated into the film. However, when vanadium concentration in the film is > 15 wt.%, the film becomes conductive. When the vanadium concentration is high in localized areas, a calcium vanadate phase that exhibits semiconductor behavior can form. The objective of this study is to evaluate electrically insulating films that were deposited on V-4%Cr-4%Ti by a reactive chemical vapor deposition (CVD) method. To this end, CaO and Ca-V-O coatings were produced on vanadium alloys by CVD and by a metallic-vapor process to investigate the electrical resistance of the coatings. The authors found that the Ca-V-O films exhibited insulator behavior when the ratio of calcium concentration to vanadium concentration R in the film > 0.9, and semiconductor or conductor behavior when R < 0.8. However, in some cases, semiconductor behavior was observed when CaO-coated samples with R > 0.98 were exposed in liquid lithium. Based on these studies, they conclude that semiconductor behavior occurs if a conductive calcium vanadate phase is present in localized regions in the CaO coating.

Park, J.H.

1998-04-01T23:59:59.000Z

395

Expert Meeting Report: Cladding Attachment Over Exterior Insulation |  

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

Cladding Attachment Over Exterior Insulation Cladding Attachment Over Exterior Insulation Expert Meeting Report: Cladding Attachment Over Exterior Insulation The addition of insulation to the exterior of buildings is an effective means of increasing the thermal resistance of both wood framed walls as well as mass masonry wall assemblies. The location of the insulation to the exterior of the structure has many direct benefits including better effective R-value from reduced thermal bridging, better condensation resistance, reduced thermal stress on the structure, as well as other commonly associated improvements such as increased air tightness and improved water management (Hutcheon 1964, Lstiburek 2007). The intent of the meeting was to review the current state of industry knowledge regarding cladding attachment over exterior insulation with a specific focus on: 1.

396

Observation of a Macroscopically Quantum-Entangled Insulator  

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

Observation of a Macroscopically Observation of a Macroscopically Quantum-Entangled Insulator Observation of a Macroscopically Quantum-Entangled Insulator Print Wednesday, 27 May 2009 00:00 It has recently been proposed that insulators with large band gaps and strong spin-orbit coupling can host a new phase of quantum matter called a topological insulator that is characterized by entangled wavefunctions. The proposal has now been realized by an international collaboration led by researchers from Princeton University who studied the electronic structure of insulating alloys of bismuth and antimony by means of angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES. Their results constitute the first direct experimental evidence of a topological insulator in nature that is fully quantum entangled. In the future, a detailed study of topological order and quantum entanglement using their method can potentially pave the way for fault-tolerant (topological) quantum computing.

397

Observation of a Macroscopically Quantum-Entangled Insulator  

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

Observation of a Macroscopically Quantum-Entangled Insulator Print Observation of a Macroscopically Quantum-Entangled Insulator Print It has recently been proposed that insulators with large band gaps and strong spin-orbit coupling can host a new phase of quantum matter called a topological insulator that is characterized by entangled wavefunctions. The proposal has now been realized by an international collaboration led by researchers from Princeton University who studied the electronic structure of insulating alloys of bismuth and antimony by means of angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES. Their results constitute the first direct experimental evidence of a topological insulator in nature that is fully quantum entangled. In the future, a detailed study of topological order and quantum entanglement using their method can potentially pave the way for fault-tolerant (topological) quantum computing.

398

Observation of a Macroscopically Quantum-Entangled Insulator  

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

Observation of a Macroscopically Quantum-Entangled Insulator Print Observation of a Macroscopically Quantum-Entangled Insulator Print It has recently been proposed that insulators with large band gaps and strong spin-orbit coupling can host a new phase of quantum matter called a topological insulator that is characterized by entangled wavefunctions. The proposal has now been realized by an international collaboration led by researchers from Princeton University who studied the electronic structure of insulating alloys of bismuth and antimony by means of angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES. Their results constitute the first direct experimental evidence of a topological insulator in nature that is fully quantum entangled. In the future, a detailed study of topological order and quantum entanglement using their method can potentially pave the way for fault-tolerant (topological) quantum computing.

399

Tunable Geometric Fano Resonances in a Metal/Insulator Stack  

E-Print Network [OSTI]

A metal-insulator-metal-insulator stack is shown to have a Fano resonance in the angular domain. The metal/insulator stack consists of two interacting subsystems, a metallic waveguide mode and a surface plasmon mode, coupled by a finite layer metal film. The two modes in close spatial proximity interfere destructively resulting in level repulsion of two metal/insulator stack modes. By adding a coupling prism to momentum match the input EM field, the reflected field exhibits a geometric Fano resonance. Changes to the waveguide insulator permittivity and thickness are shown to tune the geometric Fano resonance. The geometric Fano resonance is also tuned by variations of the exterior insulator permittivity. At a given frequency, the geometric Fano resonance can be tuned to desired lineshape. In addition, this tunability allows for a geometric Fano resonance for any frequency in the visible range.

Grotewohl, Herbert

2014-01-01T23:59:59.000Z

400

Operating temperatures of recessed fluorescent fixtures with thermal insulation  

SciTech Connect (OSTI)

Tests were performed to determine steady state surface temperatures for recessed fluorescent fixtures operated with and without thermal insulation on the top side of the fixture and to identify potential problems associated with the installation of thermal insulation. In addition to measuring temperatures, means were sought by which the fixtures can be thermally insulated and operated without fire hazards or damage to the fixture. (MCW)

Yarbrough, D.W.; Toor, I.A.

1981-05-01T23:59:59.000Z

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


401

Influence Of Three Dynamic Predictive Clothing Insulation Models On Building Energy Use, HVAC Sizing And Thermal Comfort  

E-Print Network [OSTI]

Predictive Clothing Insulation Models based on Outdoor AirPREDICTIVE CLOTHING INSULATION MODELS ON BUILDING ENERGYthat the clothing insulation is equal to a constant value of

Schiavon, Stefano; Lee, Kwang Ho

2013-01-01T23:59:59.000Z

402

List of Building Insulation Incentives | Open Energy Information  

Open Energy Info (EERE)

Air conditioners Building Insulation Windows Doors Ground Source Heat Pumps No Alabama Power - Residential Heat Pump and Weatherization Loan Programs (Alabama) Utility Loan...

403

Building America Expert Meeting: Cladding Attachment Over Exterior Insulation  

Broader source: Energy.gov [DOE]

This expert meeting was conducted by Building Science Corporation on July 28, 2012 and focused on issues surrounding cladding attachment and performance of walls with exterior insulating sheathing.

404

Material Characterization Of Rigid Foam Insulation For Aerospace Vehicles.  

E-Print Network [OSTI]

?? There is a continuing need for improved rigid foam insulation, particularly for cryogenic storage aboard aerospace vehicles. The present work is a material characterization… (more)

Barrios, Matt

2011-01-01T23:59:59.000Z

405

Shaking the bonds: Atomic vibrations drive insulator to metal...  

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

phase stability for more than 50 years. When heated to just above room temperature, the material undergoes an abrupt transformation from an electrical insulator to a conducting...

406

Advanced Systems  

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

Advanced Systems: Advanced Systems: high Performance fenestration systems Research areas: Research activities to improve the performance of windows and other fenestration products must address window systems issues as well as Glazing Materials research. LBNL activities in the area of Advanced Systems include research at both the product level and the building envelope and building systems levels. Highly insulating windows - using non structural center layers Lower cost solutions to more insulating three layer glazing systems, with the potential to turn windows in U.S. heating dominated residential applications into net-energy gainers. Highly Insulating Window Frames In collaboration with the Norwegian University of Science and Technology, we are researching the potentials for highly insulating window frames. Our initial work examines European frames with reported U-factors under 0.15 Btu/hr-ft2-F. Future research aims to analyze these designs, verify these performance levels and ensure that procedures used to calculate frame performance are accurate.

407

Möbius Graphene Strip as Topological Insulator  

E-Print Network [OSTI]

We study the electronic properties of M\\"{o}bius graphene strip with a zigzag edge. We show that such graphene strip behaves as a topological insulator with a gapped bulk and a robust metallic surface, which enjoys some features due to its nontrivial topology of the spatial configuration, such as the existence of edge states and the non-Abelian induced gauge field. We predict that the topological properties of the M\\"{o}bius graphene strip can be experimentally displayed by the destructive interference in the transmission spectrum, and the robustness of edge states under certain perturbations.

Z. L. Guo; Z. R. Gong; H. Dong; C. P. Sun

2009-06-09T23:59:59.000Z

408

Holographic Metals and Insulators with Helical Symmetry  

E-Print Network [OSTI]

Homogeneous, zero temperature scaling solutions with Bianchi VII spatial geometry are constructed in Einstein-Maxwell-Dilaton theory. They correspond to quantum critical saddle points with helical symmetry at finite density. Assuming $AdS_{5}$ UV asymptotics, the small frequency/(temperature) dependence of the AC/(DC) electric conductivity along the director of the helix are computed. A large class of insulating and conducting anisotropic phases is found, as well as isotropic, metallic phases. Conduction can be dominated by dissipation due to weak breaking of translation symmetry or by a quantum critical current.

Aristomenis Donos; Blaise Goutéraux; Elias Kiritsis

2014-06-24T23:59:59.000Z

409

Holographic Metals and Insulators with Helical Symmetry  

E-Print Network [OSTI]

Homogeneous, zero temperature scaling solutions with Bianchi VII spatial geometry are constructed in Einstein-Maxwell-Dilaton theory. They correspond to quantum critical saddle points with helical symmetry at finite density. Assuming $AdS_{5}$ UV asymptotics, the small frequency/(temperature) dependence of the AC/(DC) electric conductivity along the director of the helix are computed. A large class of insulating and conducting anisotropic phases is found, as well as isotropic, metallic phases. Conduction can be dominated by dissipation due to weak breaking of translation symmetry or by a quantum critical current.

Donos, Aristomenis

2014-01-01T23:59:59.000Z

410

Novel metals and insulators from holography  

E-Print Network [OSTI]

Using simple holographic models in $D=4$ spacetime dimensions we construct black hole solutions dual to $d=3$ CFTs at finite charge density with a Q-lattice deformation. At zero temperature we find new ground state solutions with broken translation invariance, either in one or both spatial directions, which exhibit insulating or metallic behaviour depending on the parameters of the holographic theory. For low temperatures and small frequencies, the real part of the optical conductivity has a power-law behaviour, with the exponent determined by the ground state. We also obtain an expression for the the DC conductivity at finite temperature in terms of horizon data of the black hole solutions.

Aristomenis Donos; Jerome P. Gauntlett

2014-01-20T23:59:59.000Z

411

Topological insulators with SU(2) Landau levels  

E-Print Network [OSTI]

We construct continuum models of 3D and 4D topological insulators by coupling spin-1/2 fermions to an SU(2) background gauge field, which is equivalent to a spatially dependent spin-orbit coupling. Higher dimensional generalizations of flat Landau levels are obtained in the Landau-like gauge. The 2D helical Dirac modes with opposite helicities and 3D Weyl modes with opposite chiralities are spatially separated along the third and fourth dimensions, respectively. Stable 2D helical Fermi surfaces and 3D chiral Fermi surfaces appear on open boundaries, respectively. The charge pumping in 4D Landau level systems shows quantized 4D quantum Hall effect.

Yi Li; Shou-Cheng Zhang; Congjun Wu

2012-08-08T23:59:59.000Z

412

Investigation into CF3I-CO2 gas mixtures for insulation of gas-insulated distribution equipment .  

E-Print Network [OSTI]

??This thesis reviews the use of sulphur hexafluoride (SF6) as an insulating medium in the electrical power industry and quantifies the potential global warming effects… (more)

Widger, Phillip

2014-01-01T23:59:59.000Z

413

Insulating conduction in Sn/Si(111): Possibility of a Mott insulating ground state and metallization/localization induced by carrier doping  

E-Print Network [OSTI]

Insulating conduction in Sn/Si(111): Possibility of a Mott insulating ground state measurements. The temperature dependence of the surface-state conductivity showed an insulating behavior from is insulating with a very small energy gap, which is consistent with a recent theoretical study G. Profeta and E

Hasegawa, Shuji

414

Operation of Line Transformers Upon Attainment of Maximum Permissible Parameters of Wear of Winding Insulation  

Science Journals Connector (OSTI)

Possible mechanisms of failure of insulation of windings of line transformers after exhaustion ... are considered. Conditions of strength of paper insulation and conditions of operation of screw-type insulation u...

B. V. Vanin; Yu. N. L'vov; M. Yu. L'vov; L. N. Shifrin

2004-01-01T23:59:59.000Z

415

Insulation of the Chicken ?-Globin Chromosomal Domain from a Chromatin-Condensing Protein, MENT  

Science Journals Connector (OSTI)

...Microbiology ARTICLE TRANSCRIPTIONAL REGULATION Insulation of the Chicken b-Globin Chromosomal...regulatory elements (61), and structural insulation of active chromatin from silencing...West, and G. Felsenfeld. 2002. The insulation of genes from external enhancers and...

Natalia E. Istomina; Sain S. Shushanov; Evelyn M. Springhetti; Vadim L. Karpov; Igor A. Krasheninnikov; Kimberly Stevens; Kenneth S. Zaret; Prim B. Singh; Sergei A. Grigoryev

2003-09-01T23:59:59.000Z

416

Transcriptional insulation of the human keratin 18 gene in transgenic mice.  

Science Journals Connector (OSTI)

...research-article Research Article Transcriptional insulation of the human keratin 18 gene in transgenic...for this property of transcriptional insulation, additional transgenic mouse lines...sequence requirements for transcriptional insulation in adult liver and intestine are different...

N Neznanov; I S Thorey; G Ceceńa; R G Oshima

1993-04-01T23:59:59.000Z

417

Characterization of New Glass Coated Foam Glass Insulating Tiles by Standard Tests  

Science Journals Connector (OSTI)

A good thermal insulation of buildings is today more and more...1). Among insulating materials, foam glasses are increasing their importance because of...2). Foam glasses are fiber-free inorganic insulation mater...

Andrea Ventrella; Federico Smeacetto…

2012-11-01T23:59:59.000Z

418

Optimization of functionally graded metallic foam insulation under transient heat transfer conditions  

Science Journals Connector (OSTI)

The problem of minimizing the maximum temperature of a structure insulated by a functionally graded metal foam insulation under transient heat conduction is studied. First, the performance of insulation designed ...

H. Zhu; B.V. Sankar; R.T. Haftka…

2004-11-01T23:59:59.000Z

419

Sound insulation ratings—the STC revisited  

Science Journals Connector (OSTI)

About twenty years ago building authorities and their acoustical experts were faced with a confusing variety of schemes for rating the sound insulation of walls and floors. There was need for a definitive rating system that would digest the 16 transmission loss values that characterize a partition and produce a single number that would describe its sound insulation performance especially in respect to multi?family dwellings. Two standards committees ISO/TC 43 and ASTM E6 (now E33) began more or less together to develop a new improved rating system to fill this need. The product of these labors was what is known in North America as the ASTM sound transmission class (STC). This rating system was so successful that it was almost universally adopted—even in applications for which it was not intended. Despite the apparent success there is now increasing awareness of imperfections in the system. These are examined in light of accumulated data and experience to see whether the system could or should be improved by certain minor changes.

T. D. Northwood

1981-01-01T23:59:59.000Z

420

Building America Technology Solutions for New and Existing Homes: Ground Source Heat Pump Research, TaC Studios Residence, Atlanta, Georigia (Fact Sheet),  

Broader source: Energy.gov [DOE]

This case study describes the construction of a new test home in Atlanta, GA, that demonstrates current best practices for the mixed-humid climate, including a building envelope featuring advanced air sealing details and low density spray foam insulation, glazing that exceeds ENERGY STAR requirements, and a high performance heating and cooling system.

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


421

Montana Slab Edge Insulation Analysis for IECC 2006 Adoption  

SciTech Connect (OSTI)

This is a letter report summarizing the energy analysis of slab insulation requirements which are no longer in IECC 2006 for Montana climate zone. Based on energy analysis using Equest, we calculated energy consumption and annual energy cost for various insulation configurations. This information will be used by the Montana Energy office during the upcoming code hearings.

Gowri, Krishnan

2007-05-01T23:59:59.000Z

422

Experiments Provide First Direct Signatures of a Topological Insulator - a  

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

Experiments Provide First Direct Experiments Provide First Direct Signatures of a Topological Insulator - a New Phase of Quantum Matter It has recently been proposed that insulators with large band gap and strong spin-orbit coupling can host a new phase of quantum matter called a topological insulator [1,2]. This exotic phase of matter is a subject of intense research because it is predicted to give rise to dissipationless spin currents [3], quantum entanglements and novel macroscopic behavior that obeys axionic electrodynamics rather than Maxwell's equations [4]. Unlike ordinary quantum phases of matter such as superconductors, magnets or superfluids, topological insulators are not described by a local order parameter associated with a spontaneously broken symmetry but rather by a quantum entanglement of its wave function, dubbed topological order. In a topological insulator this quantum entanglement survives over the macroscopic dimensions of the crystal and leads to surface states that have unusual spin textures.

423

Surprising Control over Photoelectrons from a Topological Insulator  

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

Surprising Control over Surprising Control over Photoelectrons from a Topological Insulator Surprising Control over Photoelectrons from a Topological Insulator Print Tuesday, 12 March 2013 00:00 Topological insulators are insulators in the bulk but metals on the surface, and the electrons that flow swiftly across their surfaces are "spin polarized." Surface-electron spin and momentum are locked, offering new ways to control electron flow and distribution in spintronic devices. A Nature Physics paper by first author Chris Jozwiak of the Advanced Light Source and a large team led by Alessandra Lanzara and Zahid Hussain describes surprising results counter to previous assumptions: the spin polarization of photoemitted electrons from the surface of a topological insulator is wholly determined in three dimensions by the polarization of the incident light beam.

424

Tuning of the Metal-Insulator Transition via Alkali Adsorption  

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

Tuning of the Metal-Insulator Transition via Alkali Adsorption Print Tuning of the Metal-Insulator Transition via Alkali Adsorption Print Turning a material from an insulator to a metal, or vice versa, by light irradiation, exposure to electric or magnetic fields, or applying small changes in temperature, pressure, or doping-such intriguing control of a material's electronic properties is possible by exploiting strongly interacting or "correlated" electrons. Now a team of researchers from the University of Kiel in Germany and the ALS has found a novel, surprising way to continuously transform a layered metallic transition-metal compound, TaS2, into an insulator. Using angle-resolved photoemission spectroscopy (ARPES), they have demonstrated that adsorption of alkali atoms onto this material's surface gradually makes it more insulating, although in general, alkali adsorption should lead to more metallic behavior, as alkali atoms easily give away their loosely bound outermost electron.

425

Insulation Strategies to Meet Upcoming Code and Above Code Programs  

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

Insulation Strategies to Meet Insulation Strategies to Meet Upcoming Code and Above Code Programs 1 Christopher Little, BASF Corporation, Center for Building Excellence 3/2/2012 Presentation Overview Innovative insulating & wall assembly strategies  Typical assembly  New innovations  Features & benefits of each 2 3/2/2012 Typical Site Built Residential Wall Concept: Site built wood frame wall with exterior sheathing and batt insulation Components:  Exterior Finish (bulk moisture control)  Building wrap  Exterior sheathing 2x4 Studs @16" O.C.  Batt Insulation (+/- 3.7 R per inch)  Gypsum board Benefits: Relatively low cost ICF Site-built 3 3/2/2012 Typical Site Built Residential Wall Key performance deficiencies  Low effective R-value  Difficulty meeting IECC 2012 R-value

426

Surprising Control over Photoelectrons from a Topological Insulator  

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

Surprising Control over Photoelectrons Surprising Control over Photoelectrons from a Topological Insulator Surprising Control over Photoelectrons from a Topological Insulator Print Tuesday, 12 March 2013 00:00 Topological insulators are insulators in the bulk but metals on the surface, and the electrons that flow swiftly across their surfaces are "spin polarized." Surface-electron spin and momentum are locked, offering new ways to control electron flow and distribution in spintronic devices. A Nature Physics paper by first author Chris Jozwiak of the Advanced Light Source and a large team led by Alessandra Lanzara and Zahid Hussain describes surprising results counter to previous assumptions: the spin polarization of photoemitted electrons from the surface of a topological insulator is wholly determined in three dimensions by the polarization of the incident light beam.

427

Design of Experiments Results for the Feedthru Insulator  

SciTech Connect (OSTI)

A design of experiments (DoE) was performed at Ceramtec to improve the yield of a cermet part known as the feedthru insulator. The factors chosen to be varied in this DoE were syringe orifice size, fill condition, solvent, and surfactant. These factors were chosen because of their anticipated effect on the cermet slurry and its consequences to the feedthru insulator in succeeding fabrication operations. Response variables to the DoE were chosen to be indirect indicators of production yield for the feedthru insulator. The solvent amount used to mix the cermet slurry had the greatest overall effect on the response variables. Based upon this DoE, there is the potential to improve the yield not only for the feedthru insulator but for other cermet parts as well. This report thoroughly documents the DoE and contains additional information regarding the feedthru insulator.

BENAVIDES,GILBERT L.; VAN ORNUM,DAVID J.; BACA,MAUREEN R.; APPEL,PATRICIA E.

1999-12-01T23:59:59.000Z

428

Kingspan Insulated Panels: Proposed Penalty (2013-CE-5353) | Department of  

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

Kingspan Insulated Panels: Proposed Penalty (2013-CE-5353) Kingspan Insulated Panels: Proposed Penalty (2013-CE-5353) Kingspan Insulated Panels: Proposed Penalty (2013-CE-5353) March 26, 2013 DOE alleged in a Notice of Proposed Civil Penalty that Kingspan Insulated Panels, Inc. failed to certify a variety of walk-in cooler or freezer components as compliant with the applicable energy conservation standards. DOE regulations require a manufacturer (which includes importers) to submit reports certifying that its products have been tested and meet the applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Kingspan Insulated Panels: Proposed Penalty (2013-CE-5353) More Documents & Publications

429

Testing of Compact Bolted Fasteners with Insulation and Friction-Enhanced Shims for NCSX  

SciTech Connect (OSTI)

The fastening of the National Compact Stellarator Experiment's (NCSX) modular coils presented a number of engineering and manufacturing challenges due to the high magnetic forces, need to control induced currents, tight tolerances and restrictive space envelope. A fastening method using high strength studs, jack nuts, insulating spacers, bushings and alumina coated shims was developed which met the requirements. A test program was conducted to verify the design. The tests included measurements of flatness of the spacers, determination of contact area, torque vs. tension of the studs and jack nuts, friction coefficient tests on the alumina and G-10 insulators, electrical tests, and tension relaxation tests due to temperature excursions from room temperature to liquid nitrogen temperatures. This paper will describe the design and the results of the test program.

L. E. Dudek, J.H. Chrzanowski, G. Gettelfinger, P. Heitzenroeder, S. Jurczynski, M. Viola and K. Freudenberg

2009-02-04T23:59:59.000Z

430

E-Print Network 3.0 - antiferromagnetic mott insulator Sample...  

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

of Spin 1 bosons Mott Insulator Phase Superfluid-Mott... Insulator Phase transition (Phase Boundary) Symmetry of Superfluid Phase Spin order in n1 Mott... ...

431

A new method of reducing contact heat transfer in vacuum-screen insulation  

Science Journals Connector (OSTI)

A heat treatment method is proposed for vacuum-screen insulation that substantially reduces the contact heat transfer ... illustrated on cryogenic pipelines with various forms of insulation.

T. A. Kurskaya; V. F. Getmanets; B. V. Grigorenko

1988-03-01T23:59:59.000Z

432

Why You Might Want to Add More Insulation | Department of Energy  

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

the Payback Period of Additional Insulation Air Sealing Your Home Insulation and Air Sealing Products and Services There's more, too Unless your home was specifically...

433

Development of a Process to Build Polyimide Insulated Magnets For Operation at 350C  

SciTech Connect (OSTI)

An extensive R&D program has been conducted that has confirmed the feasibility of designing and fabricating copper alloy magnets that can successfully operate at temperatures as high as 350C. The process, originally developed for the possibility of manufacturing in-vessel resonant magnetic field perturbation (RMP) coils for JET, has been optimized for insulated magnet (and, potentially, other high temperature component) applications. One of the benefits of high temperature operation is that active cooling may no longer be required, greatly simplifying magnet/component design. These elevated temperatures are beyond the safe operating limits of conventional OFHC copper and the epoxies that bond and insulate the turns of typical magnets. This would necessitate the use an alternative copper alloy conductor such as C18150 (CuCrZr). Coil manufacture with polyimide is very similar to conventional epoxy bonded coils. Conductors would be dry wound then impregnated with polyimide of low enough viscosity to permit saturation, then cured; similar to the vacuum pressure impregnation process used for conventional epoxy bonded coils. Representative polyimide insulated coils were mechanically tested at both room temperature and 350C. Mechanical tests included turn-to-turn shear bond strength and overall polyimide adhesion strength, as well as the flexural strength of a 48-turn polyimide-bonded coil bundle. This paper will detail the results of the testing program on coil samples. These results demonstrate mechanical properties as good, or better than epoxy bonded magnets, even at 350C.

Zatz, Irving J.

2013-07-09T23:59:59.000Z

434

Strong side of weak topological insulators  

Science Journals Connector (OSTI)

Three-dimensional topological insulators are classified into “strong” (STI) and “weak” (WTI) according to the nature of their surface states. While the surface states of the STI are topologically protected from localization, this does not hold for the WTI. In this work, we show that the surface states of the WTI are actually protected from any random perturbation that does not break time-reversal symmetry, and does not close the bulk energy gap. Consequently, the conductivity of metallic surfaces in the clean system remains finite even in the presence of strong disorder of this type. In the weak disorder limit, the surfaces are found to be perfect metals, and strong surface disorder only acts to push the metallic surfaces inwards. We find that the WTI differs from the STI primarily in its anisotropy, and that the anisotropy is not a sign of its weakness but rather of its richness.

Zohar Ringel; Yaacov E. Kraus; Ady Stern

2012-07-02T23:59:59.000Z

435

13 - Aerogel materials for insulation in buildings  

Science Journals Connector (OSTI)

Abstract: Aerogel materials have recently received much attention since they give many exciting applications in a wide range of areas. This chapter highlights the processing of these materials, the resulting physicochemical properties and their applications. Thus, fundamental understandings in the techniques for processing of aerogel materials including conventional drying, supercritical drying, freeze-drying, ambient-pressure drying with regards to material density and void size distribution, thermal conductivity, optical and acoustic properties are provided. In addition, a number of chemical post-treatments for surface engineering of aerogel materials are included. Finally, potentially new applications of using these materials as thermal insulation for building, optical sensor, space dust collector and catalysis are discussed.

C.-H. Yu; Q.J. Fu; S.C.E. Tsang

2010-01-01T23:59:59.000Z

436

Highly Insulating Residential Windows Using Smart Automated Shading  

Broader source: Energy.gov [DOE]

Lead Performer: Lawrence Berkeley National Laboratory - Berkeley, CA Partner: Pella Windows - Pella, IA

437

Highly Insulating Residential Windows Using Smart Automated Shading...  

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

and in a networked configuration. Project Impact LBNL is aiming toward a mature market cost increment of 12ft2 of window. LBNL will also work with code officials to...

438

Highly Insulating Residential Windows Using Smart Automated Shading...  

Office of Environmental Management (EM)

Smart Window with integrated sensors, control logic and a motorized shade between glass panes. Image: Lawrence Berkeley National Laboratory 2 of 3 Residential Smart Window...

439

Noncontact deep level photo-thermal spectroscopy: Technique and application to semi-insulating GaAs Wafers  

E-Print Network [OSTI]

to high resistivity materials, since the Debye-Huckel length is too large several milli- meters for semi materials. In DLPTS, the thermal recovery of carriers after excita- tion is monitored by a subNoncontact deep level photo-thermal spectroscopy: Technique and application to semi-insulating Ga

Mandelis, Andreas

440

Outdoor polymeric insulators long-term exposed to HVDC  

SciTech Connect (OSTI)

Field experience from outdoor polymeric insulators exposed to HVDC under natural contamination conditions is presented. This paper summarizes the peak leakage current statistics, the hydrophobicity and the surface material conditions studied by electron spectroscopy for chemical analysis (ESCA) and attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy. The results show a strong interrelation between the surface conditions and the performance with respect to leakage currents. Moreover, the results show that the surface conditions and the performance of the insulators exposed to HVDC are rather similar to those of the insulators exposed to HVAC.

Soerqvist, T.; Vlastos, A.E. [Chalmers Univ. of Technology, Gothenburg (Sweden)] [Chalmers Univ. of Technology, Gothenburg (Sweden)

1997-04-01T23:59:59.000Z

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


441

Building America Top Innovations Hall of Fame Profile Â… Basement Insulation Systems  

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

Efficient Efficient and durable construction practices are critical for basements because basements can account for 10% to 30% of a home's total heat loss and provide significant risk of moisture problems due to extensive cold surfaces at the walls and slab. BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 1. Advanced Technologies and Practices 1.1 Building Science Solutions Basement Insulation Systems Building America research has provided essential guidance for one of the most challenging construction assemblies in cold-climate high-performance homes. Basements can easily develop mold, rot, and odor problems if not designed properly. Building America researchers have investigated basement insulation systems that keep the space dry, healthy, and odor-free. These systems effectively address the

442

Effect of plasma waves on the optical properties of metal-insulator superlattices  

Science Journals Connector (OSTI)

We develop a simple transfer-matrix formalism in order to obtain the dispersion relation of the electromagnetic normal modes of an infinite insulator-metal (or highly doped semiconductor) superlattice, taking into account the presence of plasma waves, spatial dispersion, and retardation. We also calculate the p-polarized reflectance and give analytical expressions for the surface impedance, reflection amplitude, and the dispersion relation of the surface modes of a semi-infinite superlattice. We find resonant features corresponding to the propagation of guided plasma waves in the metal layers coupled by transverse fields in the insulating layers. This coupling also yields new bulk modes in regions where propagation would not be allowed without spatial dispersion.

W. Luis Mochán; Marcelo del CastilloMussot; Rubén G. Barrera; Apartado Postal 20-364; 01000 México; Distrito Federal; Rubén G. Barrera

1987-01-15T23:59:59.000Z

443

Buildings Energy Data Book: 9.4 High Performance Buildings  

Buildings Energy Data Book [EERE]

6 6 Case Study, The Solaire, New York, New York (Apartments/Multi-Family) Building Design Floor Area: 357,000 SF Units: 293 Maximum Occupancy: 700 Floors: 27 Site Size: 0.38 Acres Typical Occupancy(1): 578 Black-Water Treatment Facility (2) Shell Windows Material: Double Glazed, Low-e, Thermal Breaks with Insulated Spacers Operable Windows Fixed Windows Visual Transminttance 0.68 0.68 Solar Heat Gain Coefficient 0.35 0.35 U-Factor 0.47 0.41 Wall/Roof Material R-Value Exterior Walls: Insulated brick and concrete block 8.4 Roof: Roof top garden(green roof) 22.7 HVAC Two direct-fired natural gas absorption chillers 4-Pipe fan-coil units in individual aparments Power/Energy(3) PV System(4): 1,300 SF (76 custom panels) of west facing PV rated for 11 kW . These panels are integrated into the building facade.

444

Pipeline system insulation: thermal insulation and corrosion prevention. December 1985-February 1988 (citations from the rubber and plastics research association data base). Report for December 1985-February 1988  

SciTech Connect (OSTI)

This bibliography contains citations concerning thermal and corrosion insulating of pipeline systems used to transfer liquids and gases. Thermal aging of polyurethane foam for insulating heating pipes, extrusion-film pipeline-insulation materials and processes, flexible expanded nitrile-rubber pipeline insulation with class 1 fire rating, and underground fiberglass-reinforced polyester insulated-pipeline systems are among the topics discussed. Applications in solar-heating systems, underground water, oil, and gas, interior hot water and cold water lines under seawater, and chemical-plant pipeline-system insulation are included. (This updated bibliography contains 139 citations, all of which are new entries to the previous edition.)

Not Available

1988-03-01T23:59:59.000Z

445

Effect of Deep Traps on the Barrier Heights of Metal-Insulator-Metal Tunnel Junctions  

Science Journals Connector (OSTI)

It is shown that the potential barrier ?max in a thin-film metal-insulator-metal system increases rapidly with increasing insulator thickness when electrons are immobilized in deep traps in the insulator, and at low voltage biases d?maxdV is independent of the insulator parameters. This effect may be an explanation of the observations of Lewicki and Mead.

J. G. Simmons

1969-08-11T23:59:59.000Z

446

Farmers RECC - Residential Insulation Rebate Program | Department of Energy  

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

Farmers RECC - Residential Insulation Rebate Program Farmers RECC - Residential Insulation Rebate Program Farmers RECC - Residential Insulation Rebate Program < Back Eligibility Residential Savings Category Home Weatherization Commercial Weatherization Maximum Rebate $200 Program Info State Kentucky Program Type Utility Rebate Program Rebate Amount Free energy audit at Farmers RECC members residence and up to $200 depending on amount of energy which can be saved. Provider Farmers RECC The Farmers Rural Electric Cooperative (RECC) Button-Up Program provides free energy audits and rebates for insulation upgrades to its residential customers. Farmers RECC's energy advisor will visit the customer's home, conduct an energy audit, and calculate the heat gain/heat loss for the home. If needed, customers can then receive up to $200 to increase the

447

Commercial Air Barrier Requirements for Insulated Ceilings - Code Notes |  

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

Air Barrier Requirements for Insulated Ceilings - Code Notes Air Barrier Requirements for Insulated Ceilings - Code Notes The 2009 International Energy Conservation Code requires openings in the building envelope to be sealed to prevent air leakage into and out of the space, including an air barrier at insulation installations. Publication Date: Wednesday, June 22, 2011 cn_commercial_air_barrier_requirements_for_insulated_ceilings.pdf Document Details Prepared by: Pacific Northwest National Laboratory for the U.S. Department of Energy Building Energy Codes Program Focus: Compliance Building Type: Commercial Code Referenced: ASHRAE Standard 90.1-2007 2009 IECC Document type: Code Notes Target Audience: Architect/Designer Builder Code Official Contractor Engineer Contacts Web Site Policies U.S. Department of Energy USA.gov Last Updated: Thursday, September 20, 2012 - 17:25

448

Exterior Rigid Insulation Best Practices- Building America Top Innovation  

Broader source: Energy.gov [DOE]

Field and lab studies by Building America teams BSC, PHI, and Northern STAR characterize the thermal, air, and vapor resistance properties of rigid foam insulation and describe best practices for their use on walls, roofs, and foundations.

449

Homotopy Theory of Strong and Weak Topological Insulators  

E-Print Network [OSTI]

We use homotopy theory to extend the notion of strong and weak topological insulators to the non-stable regime (low numbers of occupied/empty energy bands). We show that for strong topological insulators in d spatial dimensions to be "truly d-dimensional", i.e. not realizable by stacking lower-dimensional insulators, a more restrictive definition of "strong" is required. However, this does not exclude weak topological insulators from being "truly d-dimensional", which we demonstrate by an example. Additionally, we prove some useful technical results, including the homotopy theoretic derivation of the factorization of invariants over the torus into invariants over spheres in the stable regime, as well as the rigorous justification of replacing $T^d$ by $S^d$ and $T^{d_k}\\times S^{d_x}$ by $S^{d_k+d_x}$ as is common in the current literature.

Ricardo Kennedy; Charles Guggenheim

2014-09-08T23:59:59.000Z

450

Gas-Insulated Substation Performance in Brazilian System  

Science Journals Connector (OSTI)

This work is based on a report developed in the Working Group 23–03 of CIGRÉ-Brazil [1], about gas-insulated substations performance in the Brazilian electric system from...

H. J. A. Martins; V. R. Fernandes; R. S. Jacobsen

1991-01-01T23:59:59.000Z

451

Digital Analysis of PD Sources in Gas Insulated Switchgear Substation  

Science Journals Connector (OSTI)

It has been revealed that imperfection such as microscopic protrusions on the interior of the Gas Insulated Switchgear systems (GIS) metal work, foreign particles, components that float in potential and deteri...

A. H. Mufti; W. M. Al-Baiz; A. O. Arafa

1998-01-01T23:59:59.000Z

452

Topological Spin Texture in a Quantum Anomalous Hall Insulator  

E-Print Network [OSTI]

The quantum anomalous Hall (QAH) effect has been recently discovered in an experiment using a thin-film topological insulator with ferromagnetic ordering and strong spin-orbit coupling. Here we investigate the spin degree ...

Wu, Jiansheng

453

Magnetization-driven Metal-insulator Transition in Strongly...  

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

Israel Science Foundation Grant No. 63306. NHMFL is supported by NSF Cooperative Agreement No. DMR-0654118, the State of Florida, and the DOE. Magnetization-driven Metal-insulator...

454

Measure Guideline: Sealing and Insulating of Ducts in Existing Homes  

SciTech Connect (OSTI)

This document begins with a discussion on potential cost and performance benefits of duct sealing and insulating. It continues with a review of typical duct materials and components and the overall procedures for assessing and improving the duct system.

Aldrich, R.; Puttagunta, S.

2011-12-01T23:59:59.000Z

455

Promoters, enhancers and insulators for improved mosquito transgenesis  

E-Print Network [OSTI]

the identification of an endogenous boundary element for use in insulating transgenes and their associated regulatory elements. This would mitigate the inappropriate expression or silencing of many transgenes inserted into �unfavorable� genomic environments...

Gray, Christine Elizabeth

2006-10-30T23:59:59.000Z

456

A Structural Plastic Foam Thermal Insulation for Cryogenic Service  

Science Journals Connector (OSTI)

Today, with the impending energy crisis and the rush to construct LNG facilities as one method to alleviate the energy shortage, it is not surprising that we find plastic foams and other thermal insulating materi...

R. B. Bennett

1995-01-01T23:59:59.000Z

457

Fungi associated with urea-formaldehyde foam insulation in Canada  

Science Journals Connector (OSTI)

Sixty-eight fungal taxa were identified from samples of urea-formaldehyde foam insulation taken from Canadian residences. Mesophilic taxa were...Penicillium spp., Trichoderma harzianum and Paecilomyces variotii o...

John Bissett

1987-07-01T23:59:59.000Z

458

A Comprehensive Map of Insulator Elements for the Drosophila Genome  

E-Print Network [OSTI]

Insulators are DNA sequences that control the interactions among genomic regulatory elements and act as chromatin boundaries. A thorough understanding of their location and function is necessary to address the complexities ...

White, Kevin P.

459

9 - Thermoset insulation materials in appliances, buildings and other applications  

Science Journals Connector (OSTI)

Abstract: Thermoset foam products are widely used for many technical insulation applications. They offer superior thermal insulation, a very favorable strength-to-weight ratio, and durability in a broad range of service conditions. Furthermore, fabrication technology is eased by the processing of a liquid reaction mixture and the auto-adhesive bond of reacting foam to most common substrates and facings materials. Polyurethane rigid foam is the material of choice for the whole cold-chain insulation industry, from food-processing, storage and transportation, to retailers and fridges at home. Polyurethane products are also largely used for the thermal insulations of buildings and for heat-management in pipelines and hot-water tanks. Phenolic foams find applications in some specific segments, thanks to their excellent fire and smoke behavior characteristics.

A. Fangareggi; L. Bertucelli

2012-01-01T23:59:59.000Z

460

Temperature dependence of ambipolar diffusion in silicon-on-insulator  

E-Print Network [OSTI]

Spatiotemporal dynamics of electron-hole pairs locally excited in a silicon-on-insulator structure by indirect interband absorption are studied by measuring differential transmission caused by free-carrier absorption of a ...

Zhao, Hui

2008-03-01T23:59:59.000Z

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


461

Linear particle accelerator with seal structure between electrodes and insulators  

DOE Patents [OSTI]

An electrostatic linear accelerator includes an electrode stack comprised of primary electrodes formed or Kovar and supported by annular glass insulators having the same thermal expansion rate as the electrodes. Each glass insulator is provided with a pair of fused-in Kovar ring inserts which are bonded to the electrodes. Each electrode is designed to define a concavo-convex particle trap so that secondary charged particles generated within the accelerated beam area cannot reach the inner surface of an insulator. Each insulator has a generated inner surface profile which is so configured that the electrical field at this surface contains no significant tangential component. A spark gap trigger assembly is provided, which energizes spark gaps protecting the electrodes affected by over voltage to prevent excessive energy dissipation in the electrode stack.

Broadhurst, John H. (Golden Valley, MN)

1989-01-01T23:59:59.000Z

462

An Investigation of Insulator Proteins in Mosquito Genomes  

E-Print Network [OSTI]

of transgenes in mosquito species. The use of insulator sequences to flank transgenes may have the ability to overcome position effects caused by the genomic environment surrounding the insertion site. CTCF is a multifunctional protein, conserved from humans...

Johanson, Michael

2013-08-02T23:59:59.000Z

463

Performance of MHD insulating materials in a potassium environment  

SciTech Connect (OSTI)

The objectives of this study are to evaluate the compatibility of the MHD insulating materials boron nitride and silicon nitride in a potassium environment at temperatures of 1000 and 1400{degrees}F (538 and 760{degrees}C, respectively) and to measure the electrical conductivities of the specimens before and after exposure to potassium. Based on the test results, an assessment is to be made of the suitability of these materials for application as insulator materials in an MHD channel.

Natesan, K.; Park, J.H.; Rink, D.L. (Argonne National Lab., IL (United States)); Thomas, C.A. (USDOE Pittsburgh Energy Technology Center, PA (United States))

1991-12-01T23:59:59.000Z

464

10 - Polymeric foam materials for insulation in buildings  

Science Journals Connector (OSTI)

Abstract: This chapter discusses polymeric foams used mainly for building insulation with a view to saving energy. It deals first with a brief foam history, the necessary materials for foam production, the polymers and the foaming (blowing) agents, and the foaming mechanism. It continues with the type of processing polymers for foam production and underlines the thermoplastic and thermosetting foams manufactured for the construction industry. It ends with foam main properties and future trends in the field of polymeric insulation materials.

D. Feldman

2010-01-01T23:59:59.000Z

465

Advanced insulated gate bipolar transistor gate drive  

DOE Patents [OSTI]

A gate drive for an insulated gate bipolar transistor (IGBT) includes a control and protection module coupled to a collector terminal of the IGBT, an optical communications module coupled to the control and protection module, a power supply module coupled to the control and protection module and an output power stage module with inputs coupled to the power supply module and the control and protection module, and outputs coupled to a gate terminal and an emitter terminal of the IGBT. The optical communications module is configured to send control signals to the control and protection module. The power supply module is configured to distribute inputted power to the control and protection module. The control and protection module outputs on/off, soft turn-off and/or soft turn-on signals to the output power stage module, which, in turn, supplies a current based on the signal(s) from the control and protection module for charging or discharging an input capacitance of the IGBT.

Short, James Evans (Monongahela, PA); West, Shawn Michael (West Mifflin, PA); Fabean, Robert J. (Donora, PA)

2009-08-04T23:59:59.000Z

466

Tuning of the Metal-Insulator Transition via Alkali Adsorption  

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

Tuning of the Metal-Insulator Tuning of the Metal-Insulator Transition via Alkali Adsorption Tuning of the Metal-Insulator Transition via Alkali Adsorption Print Wednesday, 29 March 2006 00:00 Turning a material from an insulator to a metal, or vice versa, by light irradiation, exposure to electric or magnetic fields, or applying small changes in temperature, pressure, or doping-such intriguing control of a material's electronic properties is possible by exploiting strongly interacting or "correlated" electrons. Now a team of researchers from the University of Kiel in Germany and the ALS has found a novel, surprising way to continuously transform a layered metallic transition-metal compound, TaS2, into an insulator. Using angle-resolved photoemission spectroscopy (ARPES), they have demonstrated that adsorption of alkali atoms onto this material's surface gradually makes it more insulating, although in general, alkali adsorption should lead to more metallic behavior, as alkali atoms easily give away their loosely bound outermost electron.

467

Research on Buildings General Quality of Insulation, Especially with Respect to Developing and Improving Methods of Post Insulation  

Science Journals Connector (OSTI)

Urea formaldehyde foam for cavity walls insulation has been investigated due to thermal conductivity...3.... There is doubt about the number of companies and of products in Denmark, that are able to observe this ...

N. H. Bertelsen; G. C. Larsen; T. Nielsen; A. D. Olsen

1984-01-01T23:59:59.000Z

468

Sound insulation property of Al–Si closed-cell aluminum foam sandwich panels  

Science Journals Connector (OSTI)

Al–Si closed-cell aluminum foam sandwich panels (1240 mm × 1100 mm) of different thicknesses and different densities were prepared by molten body transitional foaming process in Northeastern University. The experiments were carried out to investigate the sound insulation property of Al–Si closed-cell aluminum foam sandwich panels of different thicknesses and different densities under different frequencies (100–4000 Hz). Results show that sound reduction index (R) is small under low frequencies, large under high frequencies; thickness affects the sound insulation property of material obviously: when the thicknesses of Al–Si closed-cell aluminum foam sandwich panels are 12, 22, and 32 mm, the corresponding weighted sound reduction indices (RW) are 26.3, 32.2, and 34.6 dB, respectively, the rising trend tempered; the increase of density of Al–Si closed-cell aluminum foam can also increase the sound insulation property: when the densities of aluminum foam are 0.31, 0.51, and 0.67 g/cm3, the corresponding weighted sound reduction indices (RW) are 28.9, 34.3, and 34.6 dB, the increasing value mitigating.

Haijun Yu; Guangchun Yao; Xiaolin Wang; Yihan Liu; Hongbin Li

2007-01-01T23:59:59.000Z

469

Experimental study on cryogenic moisture uptake in polyurethane foam insulation material  

Science Journals Connector (OSTI)

Rigid foam is widely used to insulate cryogenic tanks, in particular for space launch vehicles due to its lightweight, mechanical strength and thermal-insulating performance. Up to now, little information is available on the intrusion of moisture into the material under cryogenic conditions, which will bring substantial additional weight for the space vehicles at lift-off. A cryogenic moisture uptake apparatus has been designed and fabricated to measure the amount of water uptake into the polyurethane foam. One side of the specimen is exposed to an environment with high humidity and ambient temperature, while the other with cryogenic temperature at approximately 78 K. A total of 16 specimens were tested for up to 24 h to explore the effects of the surface thermal protection layer, the foam thickness, exposed time, the butt joints, and the material density on water uptake of the foam. The results are constructive for the applications of the foam to the cryogenic insulation system in space launch vehicles.

X.B. Zhang; L. Yao; L.M. Qiu; Z.H. Gan; R.P. Yang; X.J. Ma; Z.H. Liu

2012-01-01T23:59:59.000Z

470

Sound insulation property of Al-Si closed-cell aluminum foam bare board material  

Science Journals Connector (OSTI)

A1-Si closed-cell aluminum foam bare boards of 1?240 mm×1?100 mm with different densities and thicknesses were prepared by molten body transitional foaming process. The sound reduction index(R) of AI-Si closed-cell aluminum foam bare boards was investigated experimentally under different frequencies (100-4?000 Hz). It is found that sound reduction index(R) is small under low frequencies, large under high frequencies and is controlled by different mechanisms. The sound insulation property basically conforms with the monolayer board sound insulation theory. The sound reduction index(R) increases with the even growth of thickness and density, but its rising trend is tempered. The single number sound reduction indexes(Rw) of specimen with thickness of 20 cm and density of 0.51 g/cm3 are 30.8 dB and 33 dB respectively, which demonstrates good sound insulation property for lightmass materials.

Hai-jun YU; Guang-chun YAO; Xiao-lin WANG; Bing LI; Yao YIN; Ke LIU

2007-01-01T23:59:59.000Z

471

CERTIFICATE OF FIELD VERIFICATION AND DIAGNOSTIC TESTING CF-4R-ENV-22 Quality Insulation Installation (QII) -Insulation Stage Checklist (Page 1 of 3)  

E-Print Network [OSTI]

CERTIFICATE OF FIELD VERIFICATION AND DIAGNOSTIC TESTING CF-4R-ENV-22 Quality Insulation Installation (QII) - Insulation Stage Checklist (Page 1 of 3) Site Address: Enforcement Agency: Permit Number: ____________ 2008 Residential Compliance Forms May 2012 All structural framing areas shall be insulated in a manner

472

Flexible, reusable fiberglass insulation tailored to fit valves, heat exchangers  

SciTech Connect (OSTI)

About 120,000 bbl/day of crude oil are refined into gasoline at the Marathon Petroleum refinery in Robinson, IL. Built in the early part of the century, the Robinson refinery has been continually updated and modernized in response to improving technology. To control heat loss on some of the unusually shaped and previously uninsulated process equipment, Marathon engineering personnel initiated a program to systematically evaluate and insulate these pieces of equipment. Primarily, over 500 valves and heat exchanger heads were losing heat which had been estimated to cost hundreds of thousands of dollars per year. The plant performed on-site evaluations of several types of removable insulation covers. The primary differences and deciding factors were in construction detail - particularly in the fasteners. Marathon chose lace-up fastening insulation covers because plant evaluation found them to be the best. Also the manufacturer agreed to provide tailor-made covers for all of the valves and heat exchanger heads. Service from the manufacturer through an insulation contractor located in Robinson was also a plus. The local contractor, working in conjunction with the manufacturer, conducted an in-plant survey that confirmed the already mentioned heat loss cost in the $100,000s range. It was also determined that an equipment temperature somewhere between 150 and 200/sup 0/F was the lowest temperature at which to economically install insulation. Marathon has been pleased with the performance of the insulation covers which reduce heat loss and, as an incidental benefit, provide personnel safety from hot surfaces. An important benefit has been the removability and reusability of the insulation, particularly advantageous on valves and heat exchangers the require frequent access.

Gockenbach, L.G.; Singleton, D.; Toy, D.A.

1986-06-01T23:59:59.000Z

473

Cellular glass insulation keeps liquefied gas from vaporizing  

SciTech Connect (OSTI)

The North West Shelf Project, located on the Burrup Peninsula in Western Australia, supplies much of that vast state with natural gas for domestic and industrial applications. Some of the gas is also exported to Japan as liquefied natural gas (LNG). While awaiting shipment to Japan, the LNG is stored at {minus}322 F in four storage tanks, each with a capacity of 2.5 million ft{sup 3}. When Woodside Offshore Petroleum Pty Ltd., operator of the LNG facility, selected insulation material for the storage tanks, it went in search of a material with more than just insulating value. Since the insulation is installed inside the tanks, it must be able to resist wicking or absorbing the LNG. Also, it had to have sufficient strength to withstand the weight of the 2.5 million ft{sup 3} of LNG without being crushed or losing its insulting properties. And, as a safety precaution, the selected materials should neither burn nor support combustion. Ultimately, Woodside selected a cellular glass insulation called Foamglas, from Pittsburgh Corning Corp., that met all the performance criteria and was cost competitive with the lesser-performing alternatives. Foamglas is produced from strong, inert borosilicate glass. Its insulating capability is provided by the tiny, closed cells of air encapsulated within the foam-like structure of the glass. Since the cells are closed,neither liquid nor vapor can enter the structure of the insulation. The inert glass itself will not absorb or react with LNG, nor will it burn or support a fire. The cellular structure provides effective insulation in both not and cold applications, and offers a fire barrier.

NONE

1995-11-01T23:59:59.000Z

474

Performance of Thermal Insulation Containing Microencapsulated Phase Change Material  

SciTech Connect (OSTI)

The objective of this study is dynamic thermal performance microencapsulated phase change material (PCM) blended with loose-fill cellulose insulation. Dynamic hot-box testing and heat-flux measurements have been made for loose-fill cellulose insulation with and without uniformly distributed microencapsulated PCM. The heat flux measurements were made with a heat-flow-meter (HFM) apparatus built in accordance with ASTM C 518. Data were obtained for 1.6 lb{sub m}/ft{sup 3} cellulose insulation containing 0 to 40 wt% PCM. Heat-flux data resulting from a rapid increase in the temperature on one side of a test specimen initially at uniform temperature were analyzed to access the effect of PCM on total heat flow. The heat flux was affected by the PCM for about 100 minutes after the temperature increase. The total heat flow during this initial period decreased linearly with PCM content from 6.5 Btu/ft{sup 2} at 0% PCM to 0.89 Btu/ft{sup 2} for 40 wt% PCM. The cellulose insulation with PCM discharged heat faster than the untreated cellulose when the hot-side temperature of the test specimen was reduced. In addition, hot-box apparatus built in accordance with ASTM C 1363 was utilized for dynamic hot-box testing of a wood stud wall assembly containing PCM-enhanced cellulose insulation. Experimental data obtained for wood-frame wall cavities containing cellulose insulation with PCM was compared with results obtained from cavities containing only cellulose insulation.

Kosny, Jan [ORNL] [ORNL; Yarbrough, David [R & D Services] [R & D Services; Syed, Azam M [ORNL] [ORNL

2007-01-01T23:59:59.000Z

475

Scientists Connect Thermoelectric Materials and Topological Insulators...  

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

and relativity in combination produce a unique conducting state on the surface. Excellent thermoelectric performance depends on a material having both high conductivity and high...

476

Photo Galleries | Department of Energy  

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

Quadrennial Technology Review Gallery New Town Builders Deputy Secretary Elizabeth Sherwood-Randall Swearing-In Ceremony Fabricate-on-Demand Vacuum Insulating Glazings 2014...

477

Top 4 Energy Department Inventions Saving You Energy & Money...  

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

an insulating gas between two window panes, researchers were able to further decrease heat loss through windows in cold climates. They then added an additional glazing layer...

478

Windows, Doors, & Skylights | Department of Energy  

Energy Savers [EERE]

Logan Architects. Windows affect home aesthetics as well as energy use. Window Types A wood-frame window with insulated window glazing. | Photo courtesy of iStockphoto...

479

Supporting documentation for the 1997 revision to the DOE Insulation Fact Sheet  

SciTech Connect (OSTI)

The Department of Energy (DOE) Insulation Fact Sheet has been revised to reflect developments in energy conservation technology and the insulation market. A nationwide insulation cost survey was made by polling insulation contractors and builders, and the results are reported here. These costs, along with regional weather data, regional fuel costs, and fuel-specific system efficiencies were used to produce recommended insulation levels for new and existing houses. This report contains all of the methodology, algorithms, assumptions, references, and data resources that were used to produce the 1997 DOE Insulation Fact Sheet.

Stovall, T.K.

1997-08-22T23:59:59.000Z

480

Superconductor-insulator Transition in La2-xSrxCuO4 at the Pair Quantum Resistance  

SciTech Connect (OSTI)

High-temperature superconductivity in copper oxides arises when a parent insulator compound is doped beyond some critical concentration; what exactly happens at this superconductor-insulator transition is a key open question. The cleanest approach is to tune the carrier density using the electric field effect; for example, it was learned in this way that weak electron localization transforms superconducting SrTiO{sub 3} into a Fermi-glass insulator. But in the copper oxides this has been a long-standing technical challenge, because perfect ultrathin films and huge local fields (>10{sup 9} Vm{sup -1}) are needed. Recently, such fields have been obtained using electrolytes or ionic liquids in the electric double-layer transistor configuration. Here we report synthesis of epitaxial films of La{sub 2-x}Sr{sub x}CuO{sub 4} that are one unit cell thick, and fabrication of double-layer transistors. Very large fields and induced changes in surface carrier density enable shifts in the critical temperature by up to 30 K. Hundreds of resistance versus temperature and carrier density curves were recorded and shown to collapse onto a single function, as predicted for a two-dimensional superconductor-insulator transition. The observed critical resistance is precisely the quantum resistance for pairs, R{sub Q} = h/(2e) = 6.45 k{Omega}, suggestive of a phase transition driven by quantum phase fluctuations, and Cooper pair (de)localization.

Bollinger, A.T.; Dubuis, G.; Yoon, J.; Pavuna, D.; Misewich, J.; Bozovic, I.

2011-04-28T23:59:59.000Z

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


481

Thermal management of batteries using a Variable-Conductance Insulation (VCI) enclosure  

SciTech Connect (OSTI)

Proper thermal management is important for optimum performance and durability of most electric-vehicle batteries. For high-temperature cells such as sodium/sulphur, a very efficient and responsive thermal control system is essential. Heat must be removed during exothermic periods and retained when the batteries are not in use. Current thermal management approaches rely on passive insulation enclosures with active cooling loops that penetrate the enclosure. This paper presents the design, analysis, and testing of an enclosure with variable conductance insulation (VCI). VCI uses a hydride with an integral electric resistance heater to expel and retrieve a small amount of hydrogen gas into a vacuum space. By controlling the amount of hydrogen gas, the thermal conductance can be varied by more than 100:1, enabling the cooling loop (cold plate) to be mounted on the enclosure exterior. By not penetrating the battery enclosure, the cooling system is simpler and more reliable. Also, heat can be retained more effectively when desired. For high temperatures, radiation shields within the vacuum space are required. Ceramic spacers are used to maintain separation of the steel enclosure materials against atmospheric loading. Ceramic-to-ceramic thermal contact resistance within the spacer assembly minimizes thermal conductance. Two full-scale (0.8-m {times} 0.9-m {times} 0.3-m) prototypes were designed, built, and tested under high-temperature 200{degrees}-350{degrees}C battery conditions. With an internal temperature of 330{degrees}C (and 20{degrees}C ambient), the measured total-enclosure minimum heat loss was 80 watts (excluding wire pass-through losses). The maximum heat rejection was 4100 watts. The insulation can be switched from minimum to maximum conductance (hydrogen pressure from 2.0 {times} 10{sup -3} to 8 torr) in 3 minutes. Switching from maximum to minimum conductance was longer (16 minutes), but still satisfactory because of the large thermal mass of the battery.

Burch, S.D.; Parish, R.C.; Keyser, M.A.

1995-05-01T23:59:59.000Z

482

Reduce Your Heating Bills with Better Insulation | Department of Energy  

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

Reduce Your Heating Bills with Better Insulation Reduce Your Heating Bills with Better Insulation Reduce Your Heating Bills with Better Insulation October 3, 2008 - 11:09am Addthis John Lippert If you pay your own energy bills, you don't need to be reminded that energy prices are escalating. Energy price projections for this coming winter are not encouraging. According to the Energy Information Administration, residential natural gas prices during the upcoming heating season (October though March) are projected to average $14.93 per Mcf, an increase of about 17% compared to last year's heating season. Residential heating oil prices are projected to average $4.13 per gallon this winter, an increase of about 25%. What if you live in an all-electric house? Many utilities are continuing to pursue retail electricity rate increases in response to power generation

483

Reduce Your Heating Bills with Better Insulation | Department of Energy  

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

Reduce Your Heating Bills with Better Insulation Reduce Your Heating Bills with Better Insulation Reduce Your Heating Bills with Better Insulation October 3, 2008 - 11:09am Addthis John Lippert If you pay your own energy bills, you don't need to be reminded that energy prices are escalating. Energy price projections for this coming winter are not encouraging. According to the Energy Information Administration, residential natural gas prices during the upcoming heating season (October though March) are projected to average $14.93 per Mcf, an increase of about 17% compared to last year's heating season. Residential heating oil prices are projected to average $4.13 per gallon this winter, an increase of about 25%. What if you live in an all-electric house? Many utilities are continuing to pursue retail electricity rate increases in response to power generation

484

Quantum Capillary Waves at the Superfluid—Mott-Insulator Interface  

Science Journals Connector (OSTI)

We discuss quantum fluctuations of the interface between a superfluid and a Mott-insulating state of ultracold atoms in a trap. The fluctuations of the boundary are due to a new type of surface modes, whose spectrum is similar—but not identical—to classical capillary waves. The corresponding quantum capillary length sets the scale for the penetration of the superfluid into the Mott-insulating regime by the proximity effect and may be on the order of several lattice spacings. It determines the typical magnitude of the interface width due to quantum fluctuations, which may be inferred from single-site imaging of ultracold atoms in an optical lattice.

Steffen Patrick Rath, Boris Spivak, and Wilhelm Zwerger

2011-10-03T23:59:59.000Z

485

Investigation of single unit flashovers in HVDC insulator strings  

SciTech Connect (OSTI)

In HVDC transmission lines, a special phenomenon, so called single unit flashover, is observed under some special conditions. Only one or two insulator units repeat flashovers, not resulting in an overall flashover along the string. However, higher magnitudes of audible noise, radio and television interferences, may give a serious problem. Based on the investigation on {+-}500-kV full scale insulator strings, higher occurrence probability of single unit flashovers under cold-wet-switch-on conditions was clarified compared with normal continuous operating voltage conditions. Effectiveness of the newly proposed countermeasures to prevent single unit flashovers was demonstrated by experiments in laboratory and in field.

Ishikawa, Kouichi; Kageyama, Hiroshi; Yamada, Yasuhiro [Kansai Electric Power Co., Inc., Osaka (Japan)] [Kansai Electric Power Co., Inc., Osaka (Japan); Matsuoka, Ryosuke; Ito, Susumu; Sakanishi, Kenji [NGK Insulators, Ltd., Nagoya (Japan)] [NGK Insulators, Ltd., Nagoya (Japan)

1996-10-01T23:59:59.000Z

486

Thermal insulation constructal optimization for steel rolling reheating furnace wall based on entransy dissipation extremum principle  

Science Journals Connector (OSTI)

Analogizing with the heat conduction process, the entransy dissipation extremum principle for thermal insulation process can be described as: for a ... heat loss) with certain constraints, the thermal insulation ...

HuiJun Feng; LinGen Chen; ZhiHui Xie; FengRui Sun

2012-12-01T23:59:59.000Z

487

EI2 Insulation Helps Anxious Pooch Find Calm in the Storm | Department...  

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

EI2 Insulation Helps Anxious Pooch Find Calm in the Storm EI2 Insulation Helps Anxious Pooch Find Calm in the Storm Photo of a dog sitting on a bed or couch with a stuffed toy in...

488

Insulation co-ordination for continuous operating voltages and temporary overvoltages  

Science Journals Connector (OSTI)

This paper presents an approach to the insulation co-ordination of electric-power installations in ... calculate the necessary required withstand voltages of unit insulations for short-duration (1 min) power-...

Zlatoje Zdravkovi?; Petar Vukelja; Jovan Mrvi?

2006-06-01T23:59:59.000Z

489

Graphene-on-Insulator Transistors Made Using C on Ni Chemical-Vapor Deposition  

E-Print Network [OSTI]

Graphene transistors are made by transferring a thin graphene film grown on Ni onto an insulating SiO[subscript 2] substrate. The properties and integration of these graphene-on-insulator transistors are presented and ...

Keast, Craig L.

490

Bionics in textiles: flexible and translucent thermal insulations for solar thermal applications  

Science Journals Connector (OSTI)

...translucent thermal insulations for solar thermal applications Thomas Stegmaier...Denkendorf73770 Denkendorf, Germany Solar thermal collectors used at present consist...transparent thermal insulation|solar thermal collector| 1. Introduction...

2009-01-01T23:59:59.000Z

491

Design, Installation and Performance of the New insulator for NSTX CHI Experiments  

SciTech Connect (OSTI)

Coaxial Helicity Injection (CHI), a non-inductive method to initiate plasma and generate toroidal plasma current, is being investigated in the National Spherical Torus Experiment (NSTX). The center stack and outer vacuum vessel are separated by insulating gaps at the top and bottom of the slim central column so that a high voltage (up to 2 kV) can be applied between them from a pulsed power supply or a capacitor bank to initiate an arc discharge. In the presence of a suitable poloidal magnetic field, the discharge is initiated at the lower gap (the injector gap) and because of the strong toroidal field develops a helical structure resulting in substantial toroidal plasma current being driven. In NSTX, up to 390 kA of toroidal current has been generated for an injected current of 25 kA. The early investigations of CHI however frequently developed arcs across the insulator at the top of the machine (the absorber gap), which terminated the desired discharge. This arcing greatly restricted the operational space available for CHI studies. During 2002, the absorber region was modified to suppress these arcs. The new design includes a new ceramic insulator on the high field side of the absorber region with a much longer tracking distance between conducting elements at the different potentials. Furthermore, two new coils were installed near the absorber to provide the ability to minimize the poloidal field connecting the center stack and outer vacuum vessel. During the subsequent experimental campaign, CHI operation was less prone to arcing in the absorber and those arcs that did occur did not terminate the main discharge.)

Mueller, D; Chrzanowski, J; Gates, D; Menard, J; Raman, R; Jarboe, T R; Nelson, B A; Maqueda, R J

2008-03-05T23:59:59.000Z

492

Building America Technlogy Solutions for New and Existing Homes: Interior Foundation Insulation Upgrade – Madison Residence (Fact Sheet)  

Broader source: Energy.gov [DOE]

This basement insulation project included a dimple map conveying inbound moisture to a draintile, airtight spray polyurethane foam wall and floor insulation, and radiant floor heat installation.

493

Building America Technology Solutions for New and Existing Homes: Excavationless: Exterior-Side Foundation Insulation for Existing Homes (Fact Sheet)  

Broader source: Energy.gov [DOE]

This project describes an innovative, minimally invasive building foundation insulation upgrade technique on an existing home that uses hydrovac excavation technology combined with a liquid insulating foam.

494

Honeywell's Solstice liquid blowing agent approved by EPA for foam insulation  

Science Journals Connector (OSTI)

Honeywell has announced that its new low global-warming-potential (LGWP) blowing agent for foam insulation has received final approval from the US Environmental Protection Agency under the latter's Significant New Alternatives Policy (SNAP) programme. The approval allows the company's Solstice™ Liquid Blowing Agent (LBA) to be used in foam insulation in refrigerators, spray foam insulation for residential and commercial buildings, insulated metal panels and other applications in the USA.

2012-01-01T23:59:59.000Z

495

Cost-Optimized Attic Insulation Solution for Factory-Built Homes- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This 2014 Top Innovation describes a dense-pack solution to increasing attic insulation R-value for manufactured homes.

496

Particle trap with dielectric barrier for use in gas insulated transmission lines  

DOE Patents [OSTI]

A gas-insulated transmission line includes an outer sheath, an inner conductor within the outer sheath, insulating supports supporting the inner conductor within the outer sheath, and an insulating gas electrically insulating the inner conductor from the outer sheath. An apertured particle trapping electrode is disposed within the outer sheath, and the electrode has a pair of dielectric members secured at each longitudinal end thereof, with the dielectric members extending outwardly from the apertured electrode.

Dale, Steinar J. (Monroeville, PA)

1982-01-01T23:59:59.000Z

497

Prototype of a tubeless vacuum insulated accelerator  

Science Journals Connector (OSTI)

The construction of a small prototype of a new kind of Cockroft-Walton accelerator is in progress. The onion-wise disposal of the capacitor plates allows a high-gradient compact machine, as well as the assurance of reliability. This kind of machine can overcome the problem of having an accelerating column of high perveance. In fact, because of its peculiar electromechanical structure, the whole high voltage generator can be settled inside a vacuum chamber and then an electron beam can be accelerated directly by the capacitor plates of the voltage multipliers. The scaled-up version of this machine seems to be particularly suited for high-current, high-efficiency applications, like FEL, ion acceleration for plasma heating or containment. The status report of the experiment will be presented.

A Boggia; G Brautti; A Raino; V Stagno; N Ceci; V Valentino; V Variale

1996-01-01T23:59:59.000Z

498

Sustainable wall construction and exterior insulation retrofit technology process and structure  

DOE Patents [OSTI]

A low-cost process for exterior wall insulation retrofit, or new wall construction by stacking layers of fabric tube filled with insulating material against a wall and covering them with mesh and stucco provides a durable structure with good insulating value.

Vohra, Arun (Bethesda, MD)

2000-01-01T23:59:59.000Z

499

Identification of a sound-insulation layer modelled by fuzzy structure theory -Experimental validation  

E-Print Network [OSTI]

Identification of a sound-insulation layer modelled by fuzzy structure theory - Experimental.fernandez@univ-paris-est.fr Abstract One proposes a novel approach to model sound-insulation layers based on the use of the fuzzy in computational models. The keypoint of the method is the construction of a mean elastoacoustic sound-insulation

Boyer, Edmond

500

Semi-insulating crystalline silicon formed by oxygen doping during low-temperature chemical vapor deposition  

E-Print Network [OSTI]

Semi-insulating crystalline silicon formed by oxygen doping during low-temperature chemical vapor) In this letter we demonstrate the use of oxygen as a dopant in silicon to create semi-insulating, crystalline of the films exhibit classical characteristics of space-charge-limited current associated with insulators