National Library of Energy BETA

Sample records for mobile window thermal

  1. Measurement of fenestration net energy performance: Considerations leading to development of a Mobile Window Thermal Test (MoWitt) facility

    SciTech Connect (OSTI)

    Klems, J.H.

    1988-08-01

    The authors present a detailed consideration of the energy flows entering a building space and the effect of random measurement errors on determining fenestration performance. Estimates of error magnitudes are made for a passive test cell; they show that a more accurate test facility is needed for reliable measurements on fenestration systems with thermal resistance 2-10 times that of single glazing or with shading coefficients less than 0.7. A test facility of this type, built at Lawrence Berkeley Laboratory, is described. The effect of random errors in this facility is discussed and computer calculations of its performance are presented. The discussion shows that, for any measurement facility, random errors are most serious in nighttime measurements, and systematic errors are most important in daytime measurements. It is concluded that, for this facility, errors from both sources should be small.

  2. Thermal and Lorentz Force Analysis of Beryllium Windows for the...

    Office of Scientific and Technical Information (OSTI)

    Title: Thermal and Lorentz Force Analysis of Beryllium Windows for the Rectilinear Muon Cooling Channel Reduction of the 6-dimensional phase-space of a muon beam by several orders ...

  3. Laser window with annular grooves for thermal isolation

    DOE Patents [OSTI]

    Warner, B.E.; Horton, J.A.; Alger, T.W.

    1983-07-13

    A laser window or other optical element which is thermally loaded, heats up and causes optical distortions because of temperature gradients between the center and the edge. A number of annular grooves, one to three or more, are formed in the element between a central portion and edge portion, producing a web portion which concentrates the thermal gradient and thermally isolates the central portion from the edge portion, producing a uniform temperature profile across the central portion and therefore reduce the optical distortions. The grooves are narrow and closely spaced with respect to the thickness of the element, and successive grooves are formed from alternate sides of the element.

  4. Hit the Road, Jack! New Thermal Window Technology Lessens Menace of Jack

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

    Frost | Department of Energy Hit the Road, Jack! New Thermal Window Technology Lessens Menace of Jack Frost Hit the Road, Jack! New Thermal Window Technology Lessens Menace of Jack Frost January 17, 2012 - 4:25pm Addthis The frost patterns on your window might be pretty, but they're not helping you save any energy. Energy efficient windows provide an effective barrier from inclement weather. | Photo courtesy of <a

  5. Novel Thermal Break with Simplified Manufacturing for R7 Commercial Windows

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

    | Department of Energy Novel Thermal Break with Simplified Manufacturing for R7 Commercial Windows Novel Thermal Break with Simplified Manufacturing for R7 Commercial Windows Lead Performer: Alcoa - Pittsburgh, PA DOE Funding: $1,123,838 Cost Share: $280,960 Project Term: October 2014 - September 2016 Funding Opportunity: Building Energy Efficiency Frontiers and Incubator Technologies (BENEFIT) - 2014 (DE-FOA-0001027) Project Objective Alcoa proposes to develop a novel sandwich-type foam

  6. WINDOW 4. 0: Program description. A PC program for analyzing the thermal performance of fenestration products

    SciTech Connect (OSTI)

    Not Available

    1992-03-01

    WINDOW 4.0 is a publicly available IBM PC compatible computer program developed by the Windows and Daylighting Group at Lawrence Berkeley Laboratory for calculating total window thermal performance indices (e.g. U-values, solar heat gain coefficients, shading coefficients, and visible transmittances). WINDOW 4.0 provides a versatile heat transfer analysis method consistent with the rating procedure developed by the National Fenestration Rating Council (NFRC). The program can be used to design and develop new products, to rate and compare performance characteristics of all types of window products, to assist educators in teaching heat transfer through windows, and to help public officials in developing building energy codes. WINDOW 4.0 is a major revision to WINDOW 3.1 and we strongly urge all users to read this manual before using the program. Users who need professional assistance with the WINDOW 4.0 program or other window performance simulation issues are encouraged to contact one or more of the NFRC-accredited Simulation Laboratories. A list of these accredited simulation professionals is available from the NFRC.

  7. Thermal Stress in HFEF Hot Cell Windows Due to an In-Cell Metal Fire

    SciTech Connect (OSTI)

    Solbrig, Charles W.; Warmann, Stephen A.

    2016-01-01

    This work investigates an accident during the pyrochemical extraction of Uranium and Plutonium from PWR spent fuel in an argon atmosphere hot cell. In the accident, the heavy metals (U and Pu) being extracted are accidentally exposed to air from a leaky instrument penetration which goes through the cell walls. The extracted pin size pieces of U and Pu metal readily burn when exposed to air. Technicians perform the electrochemical extraction using manipulators through a 4 foot thick hot cell concrete wall which protects them from the radioactivity of the spent fuel. Four foot thick windows placed in the wall allow the technicians to visually control the manipulators. These windows would be exposed to the heat of the metal fire. As a result, this analysis determines if the thermal stress caused by the fire would crack the windows and if the heat would degrade the window seals allowing radioactivity to escape from the cell.

  8. Thermal Stress in HFEF Hot Cell Windows Due to an In-Cell Metal Fire

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

    Solbrig, Charles W.; Warmann, Stephen A.

    2016-01-01

    This work investigates an accident during the pyrochemical extraction of Uranium and Plutonium from PWR spent fuel in an argon atmosphere hot cell. In the accident, the heavy metals (U and Pu) being extracted are accidentally exposed to air from a leaky instrument penetration which goes through the cell walls. The extracted pin size pieces of U and Pu metal readily burn when exposed to air. Technicians perform the electrochemical extraction using manipulators through a 4 foot thick hot cell concrete wall which protects them from the radioactivity of the spent fuel. Four foot thick windows placed in the wallmore » allow the technicians to visually control the manipulators. These windows would be exposed to the heat of the metal fire. As a result, this analysis determines if the thermal stress caused by the fire would crack the windows and if the heat would degrade the window seals allowing radioactivity to escape from the cell.« less

  9. Characterization of Energy Savings and Thermal Comfort Improvements Derived from Using Interior Storm Windows

    SciTech Connect (OSTI)

    Knox, Jake R.; Widder, Sarah H.

    2013-09-30

    This field study of a single historic home in Seattle, WA documents the performance of Indow Windows’s interior storm window inserts. Energy use and the temperature profile of the house were monitored before and after the installation of the window inserts and changes in the two recorded metrics were examined. Using the defined analysis approach, it was determined that the interior storm windows produced a 22% reduction of the HVAC energy bill and had an undetermined effect on the thermal comfort in the house. Although there was no measurable changes in the thermal comfort of the house, the occupant noted the house to be “warmer in the winter and cooler in the summer” and that the “temperatures are more even (throughout the house).” The interior storm windows were found to be not cost effective, largely due to the retrofits completed on its heating system. However, if the economic analysis was conducted based on the old heating system, a 72% efficient oil fired furnace, the Indow Windows proved to be economical and had a simple payback period of 9.0 years.

  10. Experimental and Numerical Examination of the Thermal Transmittance of High Performance Window Frames

    SciTech Connect (OSTI)

    Gustavsen Ph.D., Arild; Goudey, Howdy; Kohler, Christian; Arasteh P.E., Dariush; Uvslokk, Sivert; Talev, Goce; Petter Jelle Ph.D., Bjorn

    2010-06-17

    While window frames typically represent 20-30percent 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. The Passivhaus Institute in Germany states that windows (glazing and frames, combined) should have U-values not exceeding 0.80 W/(m??K). This has created a niche market for highly insulating frames, with frame U-values typically around 0.7-1.0 W/(m2 cdot K). The U-values reported are often based on numerical simulations according to international simulation standards. It is prudent to check the accuracy of these calculation standards, especially for high performance products before more manufacturers begin to use them to improve other product offerings. In this paper the thermal transmittance of five highly insulating window frames (three wooden frames, one aluminum frame and one PVC frame), found from numerical simulations and experiments, are compared. Hot box calorimeter results are compared with numerical simulations according to ISO 10077-2 and ISO 15099. In addition CFD simulations have been carried out, in order to use the most accurate tool available to investigate the convection and radiation effects inside the frame cavities. Our results show that available tools commonly used to evaluate window performance, based on ISO standards, give good overall agreement, but specific areas need improvement.

  11. Thermal and Lorentz Force Analysis of Beryllium Windows for the Rectilinear Muon Cooling Channel

    SciTech Connect (OSTI)

    Luo, Tianhuan; Li, D.; Virostek, S.; Palmer, R.; Stratakis, Diktys; Bowring, D.

    2015-06-01

    Reduction of the 6-dimensional phase-space of a muon beam by several orders of magnitude is a key requirement for a Muon Collider. Recently, a 12-stage rectilinear ionization cooling channel has been proposed to achieve that goal. The channel consists of a series of low frequency (325 MHz-650 MHz) normal conducting pillbox cavities, which are enclosed with thin beryllium windows (foils) to increase shunt impedance and give a higher field on-axis for a given amount of power. These windows are subject to ohmic heating from RF currents and Lorentz force from the EM field in the cavity, both of which will produce out of the plane displacements that can detune the cavity frequency. In this study, using the TEM3P code, we report on a detailed thermal and mechanical analysis for the actual Be windows used on a 325 MHz cavity in a vacuum ionization cooling rectilinear channel for a Muon Collider.

  12. Thermal and Lorentz force analysis of beryllium windows for a rectilinear muon cooling channel

    SciTech Connect (OSTI)

    Luo, T.; Stratakis, D.; Li, D.; Virostek, S.; Palmer, R. B.; Bowring, D.

    2015-05-03

    Reduction of the 6-dimensional phase-space of a muon beam by several orders of magnitude is a key requirement for a Muon Collider. Recently, a 12-stage rectilinear ionization cooling channel has been proposed to achieve that goal. The channel consists of a series of low frequency (325 MHz-650 MHz) normal conducting pillbox cavities, which are enclosed with thin beryllium windows (foils) to increase shunt impedance and give a higher field on-axis for a given amount of power. These windows are subject to ohmic heating from RF currents and Lorentz force from the EM field in the cavity, both of which will produce out of the plane displacements that can detune the cavity frequency. In this study, using the TEM3P code, we report on a detailed thermal and mechanical analysis for the actual Be windows used on a 325 MHz cavity in a vacuum ionization cooling rectilinear channel for a Muon Collider.

  13. WINDOW 4.0: Program description. A PC program for analyzing the thermal performance of fenestration products

    SciTech Connect (OSTI)

    Not Available

    1992-03-01

    WINDOW 4.0 is a publicly available IBM PC compatible computer program developed by the Windows and Daylighting Group at Lawrence Berkeley Laboratory for calculating total window thermal performance indices (e.g. U-values, solar heat gain coefficients, shading coefficients, and visible transmittances). WINDOW 4.0 provides a versatile heat transfer analysis method consistent with the rating procedure developed by the National Fenestration Rating Council (NFRC). The program can be used to design and develop new products, to rate and compare performance characteristics of all types of window products, to assist educators in teaching heat transfer through windows, and to help public officials in developing building energy codes. WINDOW 4.0 is a major revision to WINDOW 3.1 and we strongly urge all users to read this manual before using the program. Users who need professional assistance with the WINDOW 4.0 program or other window performance simulation issues are encouraged to contact one or more of the NFRC-accredited Simulation Laboratories. A list of these accredited simulation professionals is available from the NFRC.

  14. Spring Home Maintenance: Windows, Windows, Windows! | Department...

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

    Spring Home Maintenance: Windows, Windows, Windows Spring Home Maintenance: Windows, Windows, Windows April 26, 2013 - 11:42am Addthis Caulking is an easy way to reduce air ...

  15. Thermal and Optical Properties of Low-E Storm Windows and Panels

    SciTech Connect (OSTI)

    Culp, Thomas D.; Widder, Sarah H.; Cort, Katherine A.

    2015-07-17

    Installing low-emissivity (low-E) storm windows and panels over existing windows has been identified as a cost-effective new approach for improving the energy efficiency of existing buildings where window replacement is impractical or too expensive. As such, it is desirable to characterize the key energy performance properties of low-E storm windows and panels when installed over different types of existing primary windows. this paper presents the representative U-factors, solar heat gain coefficients (SGHCs) and visible transmittance properties of the combined assemblies of various storm windows and panel types installed over different primary windows.

  16. Window Types | Department of Energy

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

    Window Types Window Types A wood-frame window with insulated window glazing. | Photo courtesy of ©iStockphoto/chandlerphoto A wood-frame window with insulated window glazing. | Photo courtesy of ©iStockphoto/chandlerphoto Windows come in a number of different frame and glazing types. By combining an energy-efficient frame choice with a glazing type tailored to your climate and application, you can customize each of your home's windows. Types of Window Frames Improving the thermal resistance

  17. WINDOW-WALL INTERFACE CORRECTION FACTORS: THERMAL MODELING OF INTEGRATED FENESTRATION AND OPAQUE ENVELOPE SYSTEMS FOR IMPROVED PREDICTION OF ENERGY USE

    SciTech Connect (OSTI)

    Bhandari, Mahabir S; Ravi, Dr. Srinivasan

    2012-01-01

    The boundary conditions for thermal modeling of fenestration systems assume an adiabatic condition between the fenestration system installed and the opaque envelope system. This theoretical adiabatic boundary condition may not be appropriate owing to heat transfer at the interfaces, particularly for aluminum- framed windows affixed to metal- framed walls. In such scenarios, the heat transfer at the interface may increase the discrepancy between real world thermal indices and laboratory measured or calculated indices based on NFRC Rating System.This paper discusses the development of window-wall Interface Correction Factors (ICF) to improve energy impacts of building envelope systems

  18. Thermal decomposition of electronic wastes: Mobile phone case and other parts

    SciTech Connect (OSTI)

    Molto, Julia; Egea, Silvia; Conesa, Juan Antonio; Font, Rafael

    2011-12-15

    Highlights: > Pyrolysis and combustion of different parts of mobile phones produce important quantities of CO and CO{sub 2}. > Naphthalene is the most abundant PAH obtained in the thermal treatment of mobile phones. > Higher combustion temperature increases the chlorinated species evolved. - Abstract: Pyrolysis and combustion runs at 850 {sup o}C in a horizontal laboratory furnace were carried out on different parts of a mobile phone (printed circuit board, mobile case and a mixture of both materials). The analyses of the carbon oxides, light hydrocarbons, polycyclic aromatic hydrocarbons (PAHs), polychlorodibenzo-p-dioxin, polychlorodibenzofurans (PCDD/Fs), and dioxin-like PCBs are shown. Regarding semivolatile compounds, phenol, styrene, and its derivatives had the highest yields. In nearly all the runs the same PAHs were identified, naphthalene being the most common component obtained. Combustion of the printed circuit board produced the highest emission factor of PCDD/Fs, possibly due to the high copper content.

  19. Windows technology assessment

    SciTech Connect (OSTI)

    Baron, J.J.

    1995-10-01

    This assessment estimates that energy loss through windows is approximately 15 percent of all the energy used for space heating and cooling in residential and commercial buildings in New York State. The rule of thumb for the nation as a whole is about 25 percent. The difference may reflect a traditional assumption of single-pane windows while this assessment analyzed installed window types in the region. Based on the often-quoted assumption, in the United States some 3.5 quadrillion British thermal units (Btu) of primary energy, costing some $20 billion, is annually consumed as a result of energy lost through windows. According to this assessment, in New York State, the energy lost due to heat loss through windows is approximately 80 trillion Btu at an annual cost of approximately $1 billion.

  20. CAVE WINDOW

    DOE Patents [OSTI]

    Levenson, M.

    1960-10-25

    A cave window is described. It is constructed of thick glass panes arranged so that interior panes have smaller windowpane areas and exterior panes have larger areas. Exterior panes on the radiation exposure side are remotely replaceable when darkened excessively. Metal shutters minimize exposure time to extend window life.

  1. Windows and Building Envelope Facilities | Department of Energy

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

    Windows and Building Envelope Facilities Windows and Building Envelope Facilities Addthis LBNL&#039;s Advanced Windows Testbed 1 of 2 LBNL's Advanced Windows Testbed This outdoor test facility contains three, thermally-isolated chambers that have been instrumented to measure thermal, daylighting, and occupant impacts of advanced window technologies. In this setup, LBNL staff are evaluating a heat recovery/ ventilation unit (left), a switchable electrochromic window (middle), and a

  2. Windows and Building Envelope Facilities | Department of Energy

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

    Emerging Technologies » Windows and Building Envelope » Windows and Building Envelope Facilities Windows and Building Envelope Facilities LBNL&#039;s Advanced Windows Testbed 1 of 2 LBNL's Advanced Windows Testbed This outdoor test facility contains three, thermally-isolated chambers that have been instrumented to measure thermal, daylighting, and occupant impacts of advanced window technologies. In this setup, LBNL staff are evaluating a heat recovery/ ventilation unit (left), a

  3. Window shopping

    SciTech Connect (OSTI)

    Best, D.

    1990-03-01

    The author addresses the energy efficiency of windows and describes changes and new products available in this consumer information article. Experiments currently being done by Lawrence Berkeley Laboratory (LBL), Bonneville Power Authority and the Washington State Energy Office show that some of these superwindows collect more energy from the sun than they let escape from inside the home. One type of window in current production is the low-E (low-emissivity) and the IGUs (insulated glass units). Low-E techniques include glazing of the glass with various materials including polyester and metallic coatings. Other measures include filling the airspace in double pane windows with argon, aerogel or by creating a vacuum in the airspace. Another factor the author considers is ultraviolet light protection.

  4. Window Attachments

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

    DCCurcija@lbl.gov Lawrence Berkeley National Laboratory Window Attachments 2015 Building Technologies Office Peer Review 2 Project Summary Timeline: Start date: 10/1/2013 Planned end date: 9/30/2018 Key Milestones: 1. CGDB Releases (2); 3/31; 9/30/2015 2. Validated simulation methods for priority window attachments; 9/30/2015 Budget: Total DOE $ to date: $1,100k Total future DOE $: $2,100k [estimated] Key Partners: Project Goal: Develop validated simulation models and procedures for

  5. BERKELEY LAB WINDOW

    Energy Science and Technology Software Center (OSTI)

    2015-03-06

    WINDOW features include: - Microsoft Windows TM interface - algorithms for the calculation of total fenestration product U-values and Solar Heat Gain Coefficient consistent with ASHRAE SPC 142, ISO 15099, and the National Fenestration Rating Council - a Condensation Resistance Index in accordance with the NFRC 500 Standard - and integrated database of properties - imports data from other LBNL window analysis software: - Import THERM file into the Frame Library - Import records frommore » IGDB and OPtics5 into the Glass Library for the optical properties of coated and uncoated glazings, laminates, and applied films. Program Capabilities WINDOW 7.2 offers the following features: The ability to analyze products made from any combination of glazing layers, gas layers, frames, spacers, and dividers under any environmental conditions and at any tilt; The ability to model complex glazing systems such as venetian blinds and roller shades. Directly accessible libraries of window system components, (glazing systems, glazing layers, gas fills, frame and divider elements), and environmental conditions; The choice of working in English (IP), or Systeme International (SI) units; The ability to specify the dimensions and thermal properties of each frame element (header, sills, jamb, mullion) in a window; A multi-band (wavelength-by-wavelength) spectral model; A Glass Library which can access spectral data files for many common glazing materials from the Optics5database; A night-sky radiative model; A link with the DOE-2.1E and Energy Plus building energy analysis program. Performance Indices and Other Results For a user-defined fenestration system and user-defined environmental conditions, WINDOW calculates: The U-value, solar heat gain coefficient, shading coefficient, and visible transmittance for the complete window system; The U-value, solar heat gain coefficient, shading coefficient, and visible transmittance for the glazing system (center-of-glass values); The U-values of the frame and divider elements and corresponding edge-of-glass areas (based on generic correlations); The total solar and visible transmittance and reflectances of the glazing system. Color properties, i.e. L*, a*, and b* color coordinates, dominant wavelength, and purity for transmitted and reflected (outdoor) solar radiation; The damage-weighted transmittance of the glazing system between 0.3 an 0.38 microns; The angular dependence of the solar and visible transmittances, solar and visible reflectances, solar absorptance, and solar heat gain coefficient of the glazing system; The percent relative humidity of the inside and outside air for which condensation will occur on the interior and exterior glazing surfaces respectively; The center-of-glass temperature distribution.« less

  6. BERKELEY LAB WINDOW

    SciTech Connect (OSTI)

    Curcija, Dragan Charlie; Zhu, Ling; Czarnecki, Stephen; Mitchell, Robin D.; Kohler, Christian; Vidanovic, Simon V.; Huizenga, Charlie

    2015-03-06

    WINDOW features include: - Microsoft Windows TM interface - algorithms for the calculation of total fenestration product U-values and Solar Heat Gain Coefficient consistent with ASHRAE SPC 142, ISO 15099, and the National Fenestration Rating Council - a Condensation Resistance Index in accordance with the NFRC 500 Standard - and integrated database of properties - imports data from other LBNL window analysis software: - Import THERM file into the Frame Library - Import records from IGDB and OPtics5 into the Glass Library for the optical properties of coated and uncoated glazings, laminates, and applied films. Program Capabilities WINDOW 7.2 offers the following features: The ability to analyze products made from any combination of glazing layers, gas layers, frames, spacers, and dividers under any environmental conditions and at any tilt; The ability to model complex glazing systems such as venetian blinds and roller shades. Directly accessible libraries of window system components, (glazing systems, glazing layers, gas fills, frame and divider elements), and environmental conditions; The choice of working in English (IP), or Systeme International (SI) units; The ability to specify the dimensions and thermal properties of each frame element (header, sills, jamb, mullion) in a window; A multi-band (wavelength-by-wavelength) spectral model; A Glass Library which can access spectral data files for many common glazing materials from the Optics5database; A night-sky radiative model; A link with the DOE-2.1E and Energy Plus building energy analysis program. Performance Indices and Other Results For a user-defined fenestration system and user-defined environmental conditions, WINDOW calculates: The U-value, solar heat gain coefficient, shading coefficient, and visible transmittance for the complete window system; The U-value, solar heat gain coefficient, shading coefficient, and visible transmittance for the glazing system (center-of-glass values); The U-values of the frame and divider elements and corresponding edge-of-glass areas (based on generic correlations); The total solar and visible transmittance and reflectances of the glazing system. Color properties, i.e. L*, a*, and b* color coordinates, dominant wavelength, and purity for transmitted and reflected (outdoor) solar radiation; The damage-weighted transmittance of the glazing system between 0.3 an 0.38 microns; The angular dependence of the solar and visible transmittances, solar and visible reflectances, solar absorptance, and solar heat gain coefficient of the glazing system; The percent relative humidity of the inside and outside air for which condensation will occur on the interior and exterior glazing surfaces respectively; The center-of-glass temperature distribution.

  7. Ocean Thermal Energy Conversion moored pipe/mobile platform design study

    SciTech Connect (OSTI)

    Bullock, H.O.; McNatt, T.R.; Ross, J.M.; Stambaugh, K.A.; Watts, J.L.

    1982-07-30

    The Ocean Thermal Energy Conversion (OTEC) Moored Pipe/Mobile Platform (MP-Squared) Design Study was carried out to investigate an innovative approach to the moored floating OTEC plant. In the past, a number of concepts have been examined by NOAA for floating OTEC plants. These concepts have considered various configurations for platforms, cold water pipes and mooring systems. In most cases the cold water pipe (CWP) was permanently attached to the platform and the platform was permanently moored on station. Even though CWP concepts incorporating articulated joints or flexible pipes were used, the CWP stresses induced by platform motion were frequently excessive and beyond the design limits of the CWP. This was especially true in the survival (100-year storm) case. It may be feasible that the concept of a permanently moored CWP attached through a flexible transition CWP to the platform could reduce the degree of technical risk by de-coupling the CWP from the motions of the platform. In addition, if the platform is capable of disconnecting from the CWP during survival conditions, even less technical risk may be inherent in the OTEC system. The MP-Squared Design Study was an engineering evaluation of the concepts described above. The effort has been carried through to the conceptual design level, and culminated in model tests in an experimental wave basin.

  8. Advances in window technology: 1973-1993

    SciTech Connect (OSTI)

    Arasteh, D.

    1994-12-31

    Until the 1970s, the thermal performance of windows and other fenestration technologies was rarely of interest to manufacturers, designers, and scientists. Since then, however, a significant research and industry effort has focused on better understanding window thermal and optical behavior, how windows influence building energy patterns, and on the development of advanced products. This chapter explains how fenestration technologies can make a positive impact on building energy flows, what physical phenomena govern window heat and light transfer, what new products have been developed, and what new products are currently the subject of international research efforts. 44 refs., 30 figs., 3 tabs.

  9. Residential Windows and Window Coverings: A Detailed View of...

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

    Residential Windows and Window Coverings: A Detailed View of the Installed Base and User Behavior Residential Windows and Window Coverings: A Detailed View of the Installed Base ...

  10. Pennsylvania: Window Technology First of Its Kind for Commercial Buildings

    Broader source: Energy.gov [DOE]

    The Opti Ultra Thermal Window series introduces new high-performing windows to the commercial building industry and unlocks the potential to save energy in more of America's commercial building space.

  11. Window Industry Technology Roadmap

    SciTech Connect (OSTI)

    None, None

    2000-04-01

    The Window Industry Technology Roadmap looks at the trends in window design and installation in 2000 and projects trends for the future.

  12. Storm Windows | Department of Energy

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

    Storm Windows Storm Windows An energy upgrade on this daycare center included interior storm windows because most of the windows are on the north elevation. | Photo courtesy of ...

  13. Window Replacement, Rehabilitation, & Repair Guides- Building America Top Innovation

    Broader source: Energy.gov [DOE]

    Building America team Building Science Corporation guides contractors through several options for repairing or replacing old windows to improve air sealing and thermal performance.

  14. High Performance Window Attachments

    Energy Savers [EERE]

    High Performance Window Attachments D. Charlie Curcija Lawrence Berkeley National Laboratory dccurcija@lbl.gov 510-495-2602 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Impact of Project: * Motivate manufacturers to make improvements in Window systems U-Factors, SHGC and daylighting utilization * Increase awareness of benefits from energy efficient window attachments Problem Statement: * A wide range of residential window attachments are available, but

  15. Tips: Windows | Department of Energy

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

    Windows Windows can be one of your home's most attractive features. Windows provide views, daylighting, ventilation, and heat from the sun in the winter. Unfortunately, they can...

  16. Building America Top Innovations 2013 Profile … Window Replacement, Rehabilitation, & Repair Guide

    Energy Savers [EERE]

    Window Replacement, Rehabilitation, & Repair Guide TOP INNOVATOR: BSC Old single-glazed windows have such low thermal resistance that their effect on the overall thermal resistance of the walls can be staggering. Building America recommends several ways to improve the performance of existing windows at varying price points. Owners of older homes who want to improve their homes' efficiency often conclude that window replacement is a necessary first step. They are right that windows can be a

  17. Apparatus for insulating windows and the like

    DOE Patents [OSTI]

    Mitchell, Robert A.

    1984-01-01

    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.

  18. Apparatus for insulating windows and the like

    DOE Patents [OSTI]

    Mitchell, R.A.

    1984-06-19

    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.

  19. Window Daylighting Demo

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

    ... Scenario comparisons - Rapid analysis of faade options ... WINDOW 6) Strong positive response from early adopters ... and Collaborators Website team: Univ of Minnesota Building ...

  20. Measure Guideline. Energy-Efficient Window Performance and Selection

    SciTech Connect (OSTI)

    Carmody, John; Haglund, Kerry

    2012-11-01

    This document provides guidelines for the selection of energy-efficient windows in new and existing residential construction in all U.S. climate zones. It includes information on window products, their attributes and performance. It provides cost/benefit information on window energy savings as well as information on non-energy benefits such as thermal comfort and reduced HVAC demands. The report also provides information on energy impacts of design decisions such as window orientation, total glazing area and shading devices and conditions. Information on resources for proper window installation is included as well.

  1. Air transparent soundproof window

    SciTech Connect (OSTI)

    Kim, Sang-Hoon; Lee, Seong-Hyun

    2014-11-15

    A soundproof window or wall which is transparent to airflow is presented. The design is based on two wave theories: the theory of diffraction and the theory of acoustic metamaterials. It consists of a three-dimensional array of strong diffraction-type resonators with many holes centered on each individual resonator. The negative effective bulk modulus of the resonators produces evanescent wave, and at the same time the air holes with subwavelength diameter existed on the surfaces of the window for macroscopic air ventilation. The acoustic performance levels of two soundproof windows with air holes of 20mm and 50mm diameters were measured. The sound level was reduced by about 30 - 35dB in the frequency range of 400 - 5,000Hz with the 20mm window, and by about 20 - 35dB in the frequency range of 700 - 2,200Hz with the 50mm window. Multi stop-band was created by the multi-layers of the window. The attenuation length or the thickness of the window was limited by background noise. The effectiveness of the soundproof window with airflow was demonstrated by a real installation.

  2. Efficient Windows Collaborative

    SciTech Connect (OSTI)

    Nils Petermann

    2010-02-28

    The project goals covered both the residential and commercial windows markets and involved a range of audiences such as window manufacturers, builders, homeowners, design professionals, utilities, and public agencies. Essential goals included: (1) Creation of 'Master Toolkits' of information that integrate diverse tools, rating systems, and incentive programs, customized for key audiences such as window manufacturers, design professionals, and utility programs. (2) Delivery of education and outreach programs to multiple audiences through conference presentations, publication of articles for builders and other industry professionals, and targeted dissemination of efficient window curricula to professionals and students. (3) Design and implementation of mechanisms to encourage and track sales of more efficient products through the existing Window Products Database as an incentive for manufacturers to improve products and participate in programs such as NFRC and ENERGY STAR. (4) Development of utility incentive programs to promote more efficient residential and commercial windows. Partnership with regional and local entities on the development of programs and customized information to move the market toward the highest performing products. An overarching project goal was to ensure that different audiences adopt and use the developed information, design and promotion tools and thus increase the market penetration of energy efficient fenestration products. In particular, a crucial success criterion was to move gas and electric utilities to increase the promotion of energy efficient windows through demand side management programs as an important step toward increasing the market share of energy efficient windows.

  3. Plasma window characterization

    SciTech Connect (OSTI)

    Krasik, Ya. E.; Gleizer, S.; Gurovich, V.; Kronhaus, I.; Hershcovitch, A.; Nozar, P.; Taliani, C.

    2007-03-01

    Parameters of an arc Ar plasma discharge used as a plasma window with a discharge current of {approx}50 A and a voltage of {approx}58 V are presented. It is shown that this arc discharge allows one to decrease the pressure at the low pressure end of the plasma window almost 380 times using relatively low pumping at the low pressure end of the plasma window. Calculations of the plasma parameters and their spatial distribution using a simple wall-stabilized arc model showed a satisfactory agreement with the experimentally obtained data. It is shown that a significant decrease in gas flow through the plasma window occurs due to the increase in plasma viscosity. An improvement of the plasma window ignition and some of its design aspects are described as well.

  4. Recovery in dc and rf performance of off-state step-stressed AlGaN/GaN high electron mobility transistors with thermal annealing

    SciTech Connect (OSTI)

    Kim, Byung-Jae; Hwang, Ya-Hsi; Ahn, Shihyun; Zhu, Weidi; Dong, Chen; Lu, Liu; Ren, Fan; Holzworth, M. R.; Jones, Kevin S.; Pearton, Stephen J.; Smith, David J.; Kim, Jihyun; Zhang, Ming-Lan

    2015-04-13

    The recovery effects of thermal annealing on dc and rf performance of off-state step-stressed AlGaN/GaN high electron mobility transistors were investigated. After stress, reverse gate leakage current and sub-threshold swing increased and drain current on-off ratio decreased. However, these degradations were completely recovered after thermal annealing at 450?C for 10 mins for devices stressed either once or twice. The trap densities, which were estimated by temperature-dependent drain-current sub-threshold swing measurements, increased after off-state step-stress and were reduced after subsequent thermal annealing. In addition, the small signal rf characteristics of stressed devices were completely recovered after thermal annealing.

  5. The Efficient Windows Collaborative

    SciTech Connect (OSTI)

    Petermann, Nils

    2006-03-31

    The Efficient Windows Collaborative (EWC) is a coalition of manufacturers, component suppliers, government agencies, research institutions, and others who partner to expand the market for energy efficient window products. Funded through a cooperative agreement with the U.S. Department of Energy, the EWC provides education, communication and outreach in order to transform the residential window market to 70% energy efficient products by 2005. Implementation of the EWC is managed by the Alliance to Save Energy, with support from the University of Minnesota and Lawrence Berkeley National Laboratory.

  6. Pennsylvania: New Series of Windows Has Potential to Save Energy for Commercial Buildings

    Broader source: Energy.gov [DOE]

    The OptiQ Ultra Thermal Window series introduces new high-performing windows to the commercial building industry and unlocks the potential to save energy in more of Americas commercial building space.

  7. Superconducting radiofrequency window assembly

    DOE Patents [OSTI]

    Phillips, H.L.; Elliott, T.S.

    1997-03-11

    The present invention is a superconducting radiofrequency window assembly for use in an electron beam accelerator. The srf window assembly has a superconducting metal-ceramic design. The srf window assembly comprises a superconducting frame, a ceramic plate having a superconducting metallized area, and a superconducting eyelet for sealing plate into frame. The plate is brazed to eyelet which is then electron beam welded to frame. A method for providing a ceramic object mounted in a metal member to withstand cryogenic temperatures is also provided. The method involves a new metallization process for coating a selected area of a ceramic object with a thin film of a superconducting material. Finally, a method for assembling an electron beam accelerator cavity utilizing the srf window assembly is provided. The procedure is carried out within an ultra clean room to minimize exposure to particulates which adversely affect the performance of the cavity within the electron beam accelerator. 11 figs.

  8. Air Sealing Windows

    SciTech Connect (OSTI)

    2009-05-14

    This information sheet addresses windows and may also be applied to doors and other pre-assembled elements installed in building enclosures that also perform an air barrier function.

  9. Superconductive radiofrequency window assembly

    DOE Patents [OSTI]

    Phillips, H.L.; Elliott, T.S.

    1998-05-19

    The present invention is a superconducting radiofrequency window assembly for use in an electron beam accelerator. The SRF window assembly has a superconducting metal-ceramic design. The SRF window assembly comprises a superconducting frame, a ceramic plate having a superconducting metallized area, and a superconducting eyelet for sealing plate into frame. The plate is brazed to eyelet which is then electron beam welded to frame. A method for providing a ceramic object mounted in a metal member to withstand cryogenic temperatures is also provided. The method involves a new metallization process for coating a selected area of a ceramic object with a thin film of a superconducting material. Finally, a method for assembling an electron beam accelerator cavity utilizing the SRF window assembly is provided. The procedure is carried out within an ultra clean room to minimize exposure to particulates which adversely affect the performance of the cavity within the electron beam accelerator. 11 figs.

  10. High Performance Window Retrofit

    SciTech Connect (OSTI)

    Shrestha, Som S; Hun, Diana E; Desjarlais, Andre Omer

    2013-12-01

    The US Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) and Traco partnered to develop high-performance windows for commercial building that are cost-effective. The main performance requirement for these windows was that they needed to have an R-value of at least 5 ft2 F h/Btu. This project seeks to quantify the potential energy savings from installing these windows in commercial buildings that are at least 20 years old. To this end, we are conducting evaluations at a two-story test facility that is representative of a commercial building from the 1980s, and are gathering measurements on the performance of its windows before and after double-pane, clear-glazed units are upgraded with R5 windows. Additionally, we will use these data to calibrate EnergyPlus models that we will allow us to extrapolate results to other climates. Findings from this project will provide empirical data on the benefits from high-performance windows, which will help promote their adoption in new and existing commercial buildings. This report describes the experimental setup, and includes some of the field and simulation results.

  11. Thermal Imaging Technologies | GE Global Research

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

    Advanced Thermal Imaging Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on...

  12. Environmentally Benign Electrolytes With Wide Electrochemical Windows -

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

    Energy Innovation Portal Environmentally Benign Electrolytes With Wide Electrochemical Windows DOE Grant Recipients Arizona Technology Enterprises Contact Arizona Technology Enterprises About This Technology Technology Marketing SummaryAs mobile electronics continue to evolve, the need for safe, long-lasting rechargeable batteries has grown tremendously. In the search for suitable materials from which to construct high energy density solid state batteries, one of the principal obstacles has

  13. Storm Windows | Department of Energy

    Office of Environmental Management (EM)

    interior storm windows because most of the windows are on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. An energy upgrade on this...

  14. Adaptive Liquid Crystal Windows

    SciTech Connect (OSTI)

    Taheri, Bahman; Bodnar, Volodymyr

    2011-12-31

    Energy consumption by private and commercial sectors in the U.S. has steadily grown over the last decade. The uncertainty in future availability of imported oil, on which the energy consumption relies strongly, resulted in a dramatic increase in the cost of energy. About 20% of this consumption are used to heat and cool houses and commercial buildings. To reduce dependence on the foreign oil and cut down emission of greenhouse gases, it is necessary to eliminate losses and reduce total energy consumption by buildings. To achieve this goal it is necessary to redefine the role of the conventional windows. At a minimum, windows should stop being a source for energy loss. Ideally, windows should become a source of energy, providing net gain to reduce energy used to heat and cool homes. It is possible to have a net energy gain from a window if its light transmission can be dynamically altered, ideally electronically without the need of operator assistance, providing optimal control of the solar gain that varies with season and climate in the U.S. In addition, the window must not require power from the building for operation. Resolution of this problem is a societal challenge and of national interest and will have a broad global impact. For this purpose, the year-round, allclimate window solution to provide an electronically variable solar heat gain coefficient (SHGC) with a wide dynamic range is needed. AlphaMicron, Inc. (AMI) developed and manufactured 1ft 1ft prototype panels for the worlds first auto-adjusting Adaptive Liquid Crystal Windows (ALCWs) that can operate from sunlight without the need for external power source and demonstrate an electronically adjustable SHGC. This novel windows are based on AlphaMicrons patented e-Tint technology, a guesthost liquid crystal system implemented on flexible, optically clear plastic films. This technology is suitable both for OEM and aftermarket (retro-fitting) lamination to new and existing windows. Low level of power consumption by ALCWs allows for on-board power electronics for automatic matching of transmission through windows to varying climate conditions without drawing the power from the power grid. ALCWs are capable of transmitting more sunlight in winters to assist in heating and less sunlight in summers to minimize overheating. As such, they can change the window from being a source of energy loss to a source of energy gain. In addition, the scalable AMIs roll-to-roll process, proved by making 1ft 1ftALCW prototype panels, allows for cost-effective production of large-scale window panels along with capability to change easily their color and shape. In addition to architectural glazing in houses and commercial buildings, ALCWs can be used in other applications where control of sunlight is needed, such as green houses, used by commercial produce growers and botanical gardens, cars, aircrafts, etc.

  15. Measure Guideline: Energy-Efficient Window Performance and Selection

    SciTech Connect (OSTI)

    Carmody, J.; Haglund, K.

    2012-11-01

    This document provides guidelines for the selection of energy-efficient windows in new and existing residential construction in all US climate zones. It includes information on window products, their attributes and performance. It provides cost/benefit information on window energy savings as well as information on non-energy benefits such as thermal comfort and reduced HVAC demands. The document also provides information on energy impacts of design decisions such as window orientation, total glazing area and shading devices and conditions. Information on resources for proper window installation is included as well. This document is for builders, homeowners, designers and anyone making decisions about selecting energy efficient window. It is intended to complement other Building America information and efforts.

  16. Superconducting radiofrequency window assembly

    DOE Patents [OSTI]

    Phillips, Harry L.; Elliott, Thomas S.

    1997-01-01

    The present invention is a superconducting radiofrequency window assembly for use in an electron beam accelerator. The srf window assembly (20) has a superconducting metal-ceramic design. The srf window assembly (20) comprises a superconducting frame (30), a ceramic plate (40) having a superconducting metallized area, and a superconducting eyelet (50) for sealing plate (40) into frame (30). The plate (40) is brazed to eyelet (50) which is then electron beam welded to frame (30). A method for providing a ceramic object mounted in a metal member to withstand cryogenic temperatures is also provided. The method involves a new metallization process for coating a selected area of a ceramic object with a thin film of a superconducting material. Finally, a method for assembling an electron beam accelerator cavity utilizing the srf window assembly is provided. The procedure is carried out within an ultra clean room to minimize exposure to particulates which adversely affect the performance of the cavity within the electron beam accelerator.

  17. Superconductive radiofrequency window assembly

    DOE Patents [OSTI]

    Phillips, Harry Lawrence; Elliott, Thomas S.

    1998-01-01

    The present invention is a superconducting radiofrequency window assembly for use in an electron beam accelerator. The srf window assembly (20) has a superconducting metal-ceramic design. The srf window assembly (20) comprises a superconducting frame (30), a ceramic plate (40) having a superconducting metallized area, and a superconducting eyelet (50) for sealing plate (40) into frame (30). The plate (40) is brazed to eyelet (50) which is then electron beam welded to frame (30). A method for providing a ceramic object mounted in a metal member to withstand cryogenic temperatures is also provided. The method involves a new metallization process for coating a selected area of a ceramic object with a thin film of a superconducting material. Finally, a method for assembling an electron beam accelerator cavity utilizing the srf window assembly is provided. The procedure is carried out within an ultra clean room to minimize exposure to particulates which adversely affect the performance of the cavity within the electron beam accelerator.

  18. Design of the beryllium window for Brookhaven Linac Isotope Producer

    SciTech Connect (OSTI)

    Nayak, S.; Mapes, M.; Raparia, D.

    2015-11-01

    In the Brookhaven Linac Isotope Producer (BLIP) beam line, there were two Beryllium (Be) windows with an air gap to separate the high vacuum upstream side from low vacuum downstream side. There had been frequent window failures in the past which affected the machine productivity and increased the radiation dose received by workers due to unplanned maintenance. To improve the window life, design of Be window is reexamined. Detailed structural and thermal simulations are carried out on Be window for different design parameters and loading conditions to come up with better design to improve the window life. The new design removed the air gap and connect the both beam lines with a Be window in-between. The new design has multiple advantages such as 1) reduces the beam energy loss (because of one window with no air gap), 2) reduces air activation due to nuclear radiation and 3) increased the machine reliability as there is no direct pressure load during operation. For quick replacement of this window, an aluminum bellow coupled with load binder was designed. There hasn’t been a single window failure since the new design was implemented in 2012.

  19. Building America Top Innovations 2013 Profile – Window Replacement, Rehabilitation, & Repair Guide

    SciTech Connect (OSTI)

    none,

    2013-09-01

    In this Top Innovation profile, Building Science Corporation guides contractors through several options for repairing or replacing old windows to improve air sealing and thermal performance.

  20. Residential Windows and Window Coverings: A Detailed View of the Installed Base and User Behavior

    Broader source: Energy.gov [DOE]

    Includes information about the installed base of residential windows and window coverings, and the operation of window coverings by households.

  1. Tips: Windows | Department of Energy

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

    Apply sun-control or other reflective films on south-facing windows to reduce solar heat gain. Long-Term Savings Tip Installing high-performance windows will improve your home's ...

  2. Capture sunlight with your window

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

    Capture sunlight with your window Capture sunlight with your window A luminescent solar concentrator is an emerging sunlight harvesting technology that has the potential to disrupt the way we think about energy. August 24, 2015 The luminescent solar concentrator could turn any window into a daytime power source. The luminescent solar concentrator could turn any window into a daytime power source. Contact Los Alamos National Laboratory Nancy Ambrosiano Communications Office (505) 667-0471 Email

  3. Dynamic Windows | Department of Energy

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

    Dynamic Windows Dynamic Windows NREL senior scientist, Robert Tenent, Ph.D., with equipment for low cost processing (deposition) of window coatings materials. NREL senior scientist, Robert Tenent, Ph.D., with equipment for low cost processing (deposition) of window coatings materials. Lead Performer: National Renewable Energy Laboratory - Golden, CO Partners: -- Sage Electrochromics - Faribault, MN -- e-Chromic Technologies, Inc. - Boulder, CO -- Colorado School of Mines - Golden, CO -- Stanford

  4. Energy-Efficient Windows | Department of Energy

    Energy Savers [EERE]

    storm windows, caulking and weatherstripping, and using window treatments or coverings. ... Window treatments or coverings can reduce heat loss in the winter and heat gain in the ...

  5. Predicting window condensation potential

    SciTech Connect (OSTI)

    McGowan, A.

    1995-07-01

    Although a substantial amount of effort has been expended to develop numerical methods for determining window U-factors, there has been little work to date on using numerical methods to predict condensation potential. It is, perhaps, of direct interest to most ASHRAE members to determine heat loss and solar gains through windows as a preliminary step to sizing heating and cooling equipment, but condensation has long been recognized as an extremely important issue for consumers (and, consequently, for window manufacturers). Moreover, building scientists recognize the link between condensation and increased energy consumption (due to latent loads), reduced occupant comfort and inferior indoor air quality (from the presence of bacteria and mold), and structural damage (where accumulated condensation is absorbed by the building materials, thus reducing their structural stability). The National Fenestration Rating Council (NFRC) is developing a rating method for condensation potential in fenestration products, as part of its mandate from the Department of Energy. A rating method would benefit from the use of simulation as a supplement to physical condensation resistance testing, to reduce the cost and time required for implementation and increase the flexibility of the rating method. This article outlines the necessary components in the application of numerical methods for evaluating condensation in fenestration products, and describes the status of the development of these methods. The theoretical approach and its practical application are discussed, as well as some comparisons between numerical prediction and physical test results for a sample of products. Much of the technical discussion in this article can be found in ASHRAE Transactions.

  6. Determining window solar heat gain coefficient

    SciTech Connect (OSTI)

    Harrison, S.J.; Wonderen, S.J. van . Solar Calorimetry Lab.)

    1994-08-01

    The solar heat gain characteristics of fenestration systems impact daytime building energy performance, occupant comfort and utility load demands. A measure of the fraction of available solar energy entering a building interior per unit window area is defined as the solar heat gain coefficient (SHGC). Together with a window's thermal transmittance (U-value), the SHGC is used to compare fenestration products, and it allows for the calculation of energy rating number and annual energy performance. The need to measure and compared advances in window technology has led to the development of experimental and analytical methods for the determination of SHGC performance. Several test facilities currently or previously capable of performing SHGC measurements exist worldwide. Results experimentally determined using these facilities have provided design data for handbook tables, and have been instrumental in the development and validation of predictive analytical methods and computer simulation tools. However, these facilities have operated without a standard test procedure for SHGC performance. Consequently, recent efforts have been focused on developing consensus test procedures for the evaluation of window energy performance.

  7. Windows on the axion

    SciTech Connect (OSTI)

    Turner, M.S.

    1989-04-01

    Peccei-Quinn symmetry with attendant axion is a most compelling, and perhaps the most minimal, extension of the standard model, as it provides a very elegant solution to the nagging strong CP-problem associated with the THETA vacuum structure of QCD. However, particle physics gives little guidance as to the axion mass; a priori, the plausible values span the range: 10/sup /minus/12/ eV /approx lt/ m/sub a/ /approx lt/ 10/sup 6/ eV, some 18 orders-of-magnitude. Axions have a host of interesting astrophysical and cosmological effects, including, modifying the evolution of stars of all types (our sun, red giants, white dwarfs, and neutron stars), contributing significantly to the mass density of the Universe today, and producing detectable line radiation through the decays of relic axions. Consideration of these effects has probed 14 orders-of-magnitude in axion mass, and has left open only two windows for further exploration: 10/sup /minus/6/ eV /approx lt/ m/sub a/ /approx lt/ 10/sup /minus/3/ eV and 1 eV /approx lt/ m/sub a/ /approx lt/ 5 eV (hadronic axions only). Both these windows are accessible to experiment, and a variety of very interesting experiments, all of which involve ''heavenly axions,'' are being planned or are underway. 58 refs., 6 figs., 1 tab.

  8. Window Types | Department of Energy

    Office of Environmental Management (EM)

    Tints Heat-absorbing window glazing contains special tints that change the color of the glass. Tinted glass absorbs a large fraction of the incoming solar radiation...

  9. Tips: Windows | Department of Energy

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

    attractive features. Windows provide views, daylighting, ventilation, and heat from the sun in the winter. Unfortunately, they can also account for 10% to 25% of your heating bill...

  10. Radiation damage in diagnostic window materials for the TFTR

    SciTech Connect (OSTI)

    Primak, W.

    1981-07-01

    The general problem of evaluating diagnostic window materials for the TFTR at the tank wall location is described. Specific evaluations are presented for several materials: vitreous silica, crystal quartz, sapphire, zinc selenide, and several fluorides: lithium fluoride, magnesium fluoride, and calcium fluoride; and seal glasses are discussed. The effects of the neutrons will be minimal. The major problems arise from the high flux of ionizing radiation, mainly the soft x rays which are absorbed near the surface of the materials. Additionally, this large energy deposition causes a significant thermal pulse with attendant thermal stresses. It is thus desirable to protect the windows with cover slips where this is feasible or to reduce the incident radiation by mounting the windows on long pipes. A more detailed summary is given at the end of this report.

  11. X-Windows Acceleration via NX

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

    X-Windows Acceleration via NX X-Windows Acceleration via NX May 12, 2011 by Francesca Verdier NX is a computer program that handles remote X-Windows connections. It can greatly...

  12. Tips: Windows | Department of Energy

    Office of Environmental Management (EM)

    Choose high-performance windows that have at least two panes of glass and a low-e coating. Choose a low U-factor for better insulation in colder climates; the U-factor is the...

  13. Window-closing safety system

    DOE Patents [OSTI]

    McEwan, Thomas E.

    1997-01-01

    A safety device includes a wire loop embedded in the glass of a passenger car window and routed near the closing leading-edge of the window. The wire loop carries microwave pulses around the loop to and from a transceiver with separate output and input ports. An evanescent field only and inch or two in radius is created along the wire loop by the pulses. Just about any object coming within the evanescent field will dramatically reduce the energy of the microwave pulses received back by the transceiver. Such a loss in energy is interpreted as a closing area blockage, and electrical interlocks are provided to halt or reverse a power window motor that is actively trying to close the window.

  14. Window-closing safety system

    DOE Patents [OSTI]

    McEwan, T.E.

    1997-08-26

    A safety device includes a wire loop embedded in the glass of a passenger car window and routed near the closing leading-edge of the window. The wire loop carries microwave pulses around the loop to and from a transceiver with separate output and input ports. An evanescent field only an inch or two in radius is created along the wire loop by the pulses. Just about any object coming within the evanescent field will dramatically reduce the energy of the microwave pulses received back by the transceiver. Such a loss in energy is interpreted as a closing area blockage, and electrical interlocks are provided to halt or reverse a power window motor that is actively trying to close the window. 5 figs.

  15. Energy Efficient Window Treatments | Department of Energy

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

    Energy Efficient Window Treatments Energy Efficient Window Treatments The awnings on this home shade the windows and generate electricity. | Photo courtesy of ©iStockphoto/jhorrocks The awnings on this home shade the windows and generate electricity. | Photo courtesy of ©iStockphoto/jhorrocks You can choose window treatments or coverings not only for decoration but also for saving energy. Some carefully selected window treatments can reduce heat loss in the winter and heat gain in the

  16. A window on urban sustainability

    SciTech Connect (OSTI)

    Stigt, Rien van; Driessen, Peter P.J.; Spit, Tejo J.M.

    2013-09-15

    Sustainable urban development requires the integration of environmental interests in urban planning. Although various methods of environmental assessment have been developed, plan outcomes are often disappointing due to the complex nature of decision-making in urban planning, which takes place in multiple arenas within multiple policy networks involving diverse stakeholders. We argue that the concept of ‘decision windows’ can structure this seemingly chaotic chain of interrelated decisions. First, explicitly considering the dynamics of the decision-making process, we further conceptualized decision windows as moments in an intricate web of substantively connected deliberative processes where issues are reframed within a decision-making arena, and interests may be linked within and across arenas. Adopting this perspective in two case studies, we then explored how decision windows arise, which factors determine their effectiveness and how their occurrence can be influenced so as to arrive at more sustainable solutions. We conclude that the integration of environmental interests in urban planning is highly dependent on the ability of the professionals involved to recognize and manipulate decision windows. Finally, we explore how decision windows may be opened. -- Highlights: • Decision-making about sustainable urban development occurs in networks. • The concept of ‘decision windows’ was further elaborated. • Decision windows help understand how environmental interests enter decision-making. • Decision windows can, to some extent, be influenced.

  17. Energy-Efficient Windows | Department of Energy

    Office of Environmental Management (EM)

    in your home involves design, selection, and installation. Design Before selecting new windows for your home, determine what types of windows will work best and where to...

  18. Building Technologies Office: Emerging Technologies Windows and...

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

    including the cost of sensor and lighting Reduce ... * Smart shadings * Highly insulated windows * Windows attachment 8 Building Envelope R&D Priorities Technology 2025 ...

  19. Do You Have Windows That Need Replacing?

    Broader source: Energy.gov [DOE]

    Do you have windows that need replacing, too? Do you have any plans to replace them with newer, more efficient windows?

  20. Window taper functions for subaperture processing. (Technical...

    Office of Scientific and Technical Information (OSTI)

    Window taper functions for subaperture processing. Citation Details In-Document Search Title: Window taper functions for subaperture processing. You are accessing a document ...

  1. Window taper functions for subaperture processing. (Technical...

    Office of Scientific and Technical Information (OSTI)

    Window taper functions for subaperture processing. Citation Details In-Document Search Title: Window taper functions for subaperture processing. It is well known that the spectrum ...

  2. Key Elements of and Materials Performance Targets for Highly Insulating Window Frames

    SciTech Connect (OSTI)

    Gustavsen, Arild; Grynning, Steinar; Arasteh, Dariush; Jelle, Bjorn Petter; Goudey, Howdy

    2011-03-28

    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.In high performance windows the frame design and material use is of utmost importance, as the frame performance is usually the limiting factor for reducing the total window U-factor further. This paper describes simulation studies analyzing the effects on frame and edge-of-glass U-factors of different surface emissivities as well as frame material and spacer conductivities. The goal of this work is to define materials research targets for window frame components that will result in better frame thermal performance than is exhibited by the best products available on the market today.

  3. Performance of a multifunctional PV/T hybrid solar window

    SciTech Connect (OSTI)

    Davidsson, Henrik; Perers, Bengt; Karlsson, Bjoern

    2010-03-15

    A building-integrated multifunctional PV/T solar window has been developed and evaluated. It is constructed of PV cells laminated on solar absorbers placed in a window behind the glazing. To reduce the cost of the solar electricity, tiltable reflectors have been introduced in the construction to focus radiation onto the solar cells. The reflectors render the possibility of controlling the amount of radiation transmitted into the building. The insulated reflectors also reduce the thermal losses through the window. A model for simulation of the electric and hot water production was developed. The model can perform yearly energy simulations where different features such as shading of the cells or effects of the glazing can be included or excluded. The simulation can be run with the reflectors in an active, up right, position or in a passive, horizontal, position. The simulation program was calibrated against measurements on a prototype solar window placed in Lund in the south of Sweden and against a solar window built into a single family house, Solgaarden, in Aelvkarleoe in the central part of Sweden. The results from the simulation shows that the solar window annually produces about 35% more electric energy per unit cell area compared to a vertical flat PV module. (author)

  4. Highly insulating Residential Windows Using Smart Automated Shading

    Energy Savers [EERE]

    Highly insulating Residential Windows Using Smart Automated Shading 2015 Building Technologies Office Peer Review Robert Hart, rghart@lbl.gov Stephen Selkowitz, seselkowitz@lbl.gov Lawrence Berkeley National Laboratory Kevin Gaul, GaulKJ@pella.com Pella Corporation Project Summary Timeline: Start date: 04/01/2013 Planned end date: 03/31/2016 Key Milestones 1. Measured thermal performance of static prototype windows is within 0.03 Btu/hr-ft2F (NFRC tolerance) of design specifications 09/30/2014

  5. Mobile Facility

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 Mobile Facilities Pictured here in Gan, the second mobile facility...

  6. Promising Technology: R-5 Window Replacements

    Broader source: Energy.gov [DOE]

    A significant amount of the energy used to heat and cool commercial buildings is lost through inefficient windows. Incorporating windows into a building that are resistant to heat transfer can significantly reduce the amount of energy that is lost through windows. R-values are an indication of how resistant a window is to heat transfer, and a larger R-value indicates a more insulating window. An R-5 window represents an efficient window, and has a larger R-value than what is required to qualify for ENERGY STAR.

  7. Windows, Doors, and Skylights | Department of Energy

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

    Windows, Doors, and Skylights Windows, Doors, and Skylights Choose energy efficient windows to reduce energy bills and improve the comfort of your home. | Photo courtesy of FSEC/IBACOS. Choose energy efficient windows to reduce energy bills and improve the comfort of your home. | Photo courtesy of FSEC/IBACOS. Windows, doors, and skylights-also known as fenestration-are significant components in a home's envelope. Ensuring they are as energy efficient as possible can save energy; reduce heating,

  8. Energy-Efficient Windows | Department of Energy

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

    Energy-Efficient Windows Energy-Efficient Windows Energy-efficient windows provide space heating and lighting to this sunny kitchen. | Photo courtesy of Emily Minton-Redfield for Jim Logan Architects. Energy-efficient windows provide space heating and lighting to this sunny kitchen. | Photo courtesy of Emily Minton-Redfield for Jim Logan Architects. Windows provide our homes with light, warmth, and ventilation, but they can also negatively impact a home's energy efficiency. You can reduce energy

  9. A first-generation prototype dynamic residential window

    SciTech Connect (OSTI)

    Kohler, Christian; Goudey, Howdy; Arasteh, Dariush

    2004-10-26

    We present the concept for a ''smart'' highly efficient dynamic window that maximizes solar heat gain during the heating season and minimizes solar heat gain during the cooling season in residential buildings. We describe a prototype dynamic window that relies on an internal shade, which deploys automatically in response to solar radiation and temperature. This prototype was built at Lawrence Berkeley National Laboratory from commercially available ''off-the-shelf'' components. It is a stand-alone, standard-size product, so it can be easily installed in place of standard window products. Our design shows promise for near-term commercialization. Improving thermal performance of this prototype by incorporating commercially available highly efficient glazing technologies could result in the first window that could be suitable for use in zero-energy homes. The unit's predictable deployment of shading could help capture energy savings that are not possible with manual shading. Installation of dynamically shaded windows in the field will allow researchers to better quantify the energy effects of shades, which could lead to increased efficiency in the sizing of heating, ventilation, and air conditioning equipment for residences.

  10. Thermal Imaging Technologies | GE Global Research

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

    Advanced Thermal Imaging Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) Butterfly-Inspired Design Enables Advanced Thermal Imaging Bryan Whalen in the Electronics Cooling Lab at GE Global Research recorded this thermo graphic video of a Morpho butterfly structure in response to heat pulses produced by breathing onto

  11. GE MEMS for LTE Advanced Mobile Devices | GE Global Research

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

    MEMS Switch Technology Demonstrates Performance Which Could Meet Demands for Next-Generation "True 4G" Mobile Devices Click to email this to a friend (Opens in new window) Share on...

  12. R-5 Highly-Insulating Windows and Low-e Storm Windows Volume Purchase Program

    SciTech Connect (OSTI)

    2009-09-30

    Introduces DOE's Building Technologies fenestration RD&D program, and describes the highly insulated R-5 Windows and Low-e Storm Windows Volume Purchase solicitation.

  13. Electrochromic Windows: Advanced Processing Technology

    SciTech Connect (OSTI)

    SAGE Electrochromics, Inc

    2006-12-13

    This project addresses the development of advanced fabrication capabilities for energy saving electrochromic (EC) windows. SAGE EC windows consist of an inorganic stack of thin films deposited onto a glass substrate. The window tint can be reversibly changed by the application of a low power dc voltage. This property can be used to modulate the amount of light and heat entering buildings (or vehicles) through the glazings. By judicious management of this so-called solar heat gain, it is possible to derive significant energy savings due to reductions in heating lighting, and air conditioning (HVAC). Several areas of SAGEs production were targeted during this project to allow significant improvements to processing throughput, yield and overall quality of the processing, in an effort to reduce the cost and thereby improve the market penetration. First, the overall thin film process was optimized to allow a more robust set of operating points to be used, thereby maximizing the yield due to the thin film deposition themselves. Other significant efforts aimed at improving yield were relating to implementing new procedures and processes for the manufacturing process, to improve the quality of the substrate preparation, and the quality of the IGU fabrication. Furthermore, methods for reworking defective devices were developed, to enable devices which would otherwise be scrapped to be made into useful product. This involved the in-house development of some customized equipment. Finally, the improvements made during this project were validated to ensure that they did not impact the exceptional durability of the SageGlass products. Given conservative estimates for cost and market penetration, energy savings due to EC windows in residences in the US are calculated to be of the order 0.026 quad (0.0261015BTU/yr) by the year 2017.

  14. Windows come to the workstation

    SciTech Connect (OSTI)

    Upton, M.

    1984-04-11

    Those making major buying decisions about software packages face a difficult process. The author looks at specific features, including windows and integrated packages. Everyone aspiring to be anyone in the packaged software business is touting an integrated system. Integrated software means a lot of things to a lot of people, but three hierarchical levels seem to stand out: the data integration level, the command structure level, and the modeless (or seamless) level.

  15. Energy Savings from Window Attachments

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

    from Window Attachments October 2013 Prepared for: Building Technologies Office Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Prepared by: Lawrence Berkeley National Laboratory October 2013 Prepared for: Building Technologies Office Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Prepared By: Lawrence Berkeley National Laboratory One Cyclotron Road, MS 90R3111 Berkeley, CA 94720 Authors: D. Charlie Curcija Mehry Yazdanian Christian Kohler

  16. Vacuum Insulation for Windows | Department of Energy

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

    The target is to achieve an R-20 film that can be applied to existing windows. With the life expectancy of installed windows being greater than 30 years, decades and tens of ...

  17. RUGGED CERAMIC WINDOW FOR RF APPLICATIONS

    SciTech Connect (OSTI)

    MIKE NEUBAUER

    2012-11-01

    High-current RF cavities that are needed for many accelerator applications are often limited by the power transmission capability of the pressure barriers (windows) that separate the cavity from the power source. Most efforts to improve RF window design have focused on alumina ceramic, the most popular historical choice, and have not taken advantage of new materials. Alternative window materials have been investigated using a novel Merit Factor comparison and likely candidates have been tested for the material properties which will enable construction in the self-matched window configuration. Window assemblies have also been modeled and fabricated using compressed window techniques which have proven to increase the power handling capability of waveguide windows. Candidate materials have been chosen to be used in fabricating a window for high power testing at Thomas Jefferson National Accelerator Facility.

  18. Rolling, Rolling, Rolling: Roller Window Shades

    Broader source: Energy.gov [DOE]

    There's a lot of talk these days about installing new energy-efficient windows. Thanks to a Federal tax credit of up to $1,500, window advertisements, both print and radio and TV broadcasting, are aplenty.

  19. Making Smart Windows Smarter | Department of Energy

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

    Smart Windows Smarter Making Smart Windows Smarter April 5, 2011 - 2:00pm Addthis "Smart Windows" seen at light and dark settings. | Photo Courtesy of SAGE Electrochromics, Inc., by Susan Fleck Photography "Smart Windows" seen at light and dark settings. | Photo Courtesy of SAGE Electrochromics, Inc., by Susan Fleck Photography Roland Risser Roland Risser Deputy Assistant Secretary for Renewable Power (Acting) What does this project do? Pleotint, LLC has developed a

  20. Windows and Building Envelope | Department of Energy

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

    Windows and Building Envelope Windows and Building Envelope About the Portfolio Next-generation windows and building envelope technologies have substantial technical potential to reduce energy consumption in buildings. However, to make significant progress toward the program goal, any next-generation technologies must be developed with a specific emphasis on achieving a market-acceptable installed cost to facilitate mass-market adoption. Activities in windows and building envelope will focus on

  1. Mickey Leland Energy Fellowship Report: Development of Advanced Window Coatings

    SciTech Connect (OSTI)

    Bolton, Ladena A.; Alvine, Kyle J.; Schemer-Kohrn, Alan L.

    2014-08-05

    Advanced fenestration technologies for light and thermal management in building applications are of great recent research interest for improvements in energy efficiency. Of these technologies, there is specific interest in advanced window coating technologies that have tailored control over the visible and infrared (IR) scattering into a room for both static and dynamic applications. Recently, PNNL has investigated novel subwavelength nanostructured coatings for both daylighting, and IR thermal management applications. Such coatings rese still in the early stages and additional research is needed in terms of scalable manufacturing. This project investigates aspects of a potential new methodology for low-cost scalable manufacture of said subwavelength coatings.

  2. Dynaically Responsive IP Window Coatings

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

    ... microscopy heating stage Thermally Reversible Buckling * Fabricated pre-buckled bilayer film * Demonstrated reversible buckling over multiple cycles with optical microscopy 13 ...

  3. Window, Door, and Skylight Products and Services | Department...

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

    Doors, and Skylights ENERGY STAR Learn how to save energy by sealing your home and choosing ENERGY STAR windows, doors, and skylights. Window Selection Tool Efficient Windows...

  4. High-Efficiency Window Air Conditioners - Building America Top...

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

    High-Efficiency Window Air Conditioners - Building America Top Innovation High-Efficiency Window Air Conditioners - Building America Top Innovation This photo shows a window air ...

  5. Research and Development Roadmap: Windows and Building Envelope...

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

    and Development Roadmap: Windows and Building Envelope Research and Development Roadmap: Windows and Building Envelope Cover of windows and envelope report, depicting a house, ...

  6. Low-Cost Solutions for Dynamic Window Material | Department of...

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

    Solutions for Dynamic Window Material Low-Cost Solutions for Dynamic Window Material ... More Documents & Publications Atmospheric Pressure Deposition for Electrochromic Windows ...

  7. Highly Insulating Residential Windows Using Smart Automated Shading...

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

    Highly Insulating Residential Windows Using Smart Automated Shading Highly Insulating Residential Windows Using Smart Automated Shading Addthis 1 of 3 Residential Smart Window with ...

  8. Energy Performance Ratings for Windows, Doors, and Skylights...

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

    Energy Performance Ratings for Windows, Doors, and Skylights Energy Performance Ratings for Windows, Doors, and Skylights Before you shop for energy-efficient windows, doors, and ...

  9. Purged window apparatus utilizing heated purge gas

    DOE Patents [OSTI]

    Ballard, Evan O.

    1984-01-01

    A purged window apparatus utilizing tangentially injected heated purge gases in the vicinity of electromagnetic radiation transmitting windows, and a tapered external mounting tube to accelerate these gases to provide a vortex flow on the window surface and a turbulent flow throughout the mounting tube. Use of this apparatus prevents backstreaming of gases under investigation which are flowing past the mouth of the mounting tube which would otherwise deposit on the windows. Lengthy spectroscopic investigations and analyses can thereby be performed without the necessity of interrupting the procedures in order to clean or replace contaminated windows.

  10. Rigid thin windows for vacuum applications

    DOE Patents [OSTI]

    Meyer, Glenn Allyn; Ciarlo, Dino R.; Myers, Booth Richard; Chen, Hao-Lin; Wakalopulos, George

    1999-01-01

    A thin window that stands off atmospheric pressure is fabricated using photolithographic and wet chemical etching techniques and comprises at least two layers: an etch stop layer and a protective barrier layer. The window structure also comprises a series of support ribs running the width of the window. The windows are typically made of boron-doped silicon and silicon nitride and are useful in instruments such as electron beam guns and x-ray detectors. In an electron beam gun, the window does not impede the electrons and has demonstrated outstanding gun performance and survivability during the gun tube manufacturing process.

  11. Establishment of a Rating Program for Pre- and Post-Fabricated Windows

    SciTech Connect (OSTI)

    Parker, Graham B.; Mapes, Terry S.; Shah, B.; Bloyd, Cary N.

    2011-08-01

    This document was prepared to support the Smart Buildings-Material Testing and Rating Centres (SB-2) activity of the Asia-Pacific Economic Cooperation (APEC) Energy Smart Communities Initiative (ESCI). The ESCI was put forward by APEC Leaders at the 2010 meeting in Japan. APEC is the premier forum for facilitating economic growth, cooperation, trade and investment in the Asia-Pacific region. This document addresses the testing and certification of building products and equipment to support building energy codes, focusing specifically on energy-efficient factory-built windows. It sets forth a proposed structure for an APEC economy to establish a testing, rating, certification, and labeling program for efficient factory-built windows. In the context of this document, efficient windows would be windows made with insulating glass (IG) and an efficient frame assembly. The minimum efficiency metric (or thermal performance) for these windows is not quantified in this document and would generally be established by a governmental agency.

  12. EERE Success Story-Energy Efficient Windows to Reach Market Quicker with

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

    New Tool | Department of Energy Energy Efficient Windows to Reach Market Quicker with New Tool EERE Success Story-Energy Efficient Windows to Reach Market Quicker with New Tool March 31, 2016 - 11:36am Addthis PPG Industries’ online tool, Construct, allows users to quickly build a virtual Insulated Glass Unit (IGU) and calculate its thermal and optical properties. Image credit: PPG Industries. PPG Industries' online tool, Construct, allows users to quickly build a virtual Insulated

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

    SciTech Connect (OSTI)

    Gustavsen, Arild; Jelle, Bjorn Petter; Arasteh, Dariush; Kohler, Christian

    2007-01-01

    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/m{sup 2}K ), 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. The frame research review also shows examples of window frames developed in order to increase the energy efficiency of the frames and the glazings which the frames are to be used together with. The authors find that two main tracks are used in searching for better solutions. The first one is to minimize the heat losses through the frame itself. The result is that conductive materials are replaced by highly thermal insulating materials and air cavities. The other option is to reduce the window frame area to a minimum, which is done by focusing on the net energy gain by the entire window (frame, spacer and glazing). Literature shows that a window with a higher U-value may give a net energy gain to a building that is higher than a window with a smaller U-value. The net energy gain is calculated by subtracting the transmission losses through the window from the solar energy passing through the windows. The net energy gain depends on frame versus glazing area, solar factor, solar irradiance, calculation period and U-value. The frame research review also discusses heat transfer modeling issues related to window frames. Thermal performance increasing measures, surface modeling, and frame cavity modeling are among the topics discussed. The review shows that the current knowledge gives the basis for improving the calculation procedures in the calculation standards. At the same time it is room for improvement within some areas, e.g. to fully understand the natural convection effects inside irregular vertical frame cavities (jambs) and ventilated frame cavities.

  14. Field Evaluation of Highly Insulating Windows in the Lab Homes: Winter Experiment

    SciTech Connect (OSTI)

    Parker, Graham B.; Widder, Sarah H.; Bauman, Nathan N.

    2012-06-01

    This field evaluation of highly insulating windows was undertaken in a matched pair of 'Lab Homes' located on the Pacific Northwest National Laboratory (PNNL) campus during the 2012 winter heating season. Improving the insulation and solar heat gain characteristics of a home's windows has the potential to significantly improve the home's building envelope and overall thermal performance by reducing heat loss (in the winter), and cooling loss and solar heat gain (in the summer) through the windows. A high quality installation and/or window retrofit will also minimize or reduce air leakage through the window cavity and thus also contribute to reduced heat loss in the winter and cooling loss in the summer. These improvements all contribute to decreasing overall annual home energy use. Occupant comfort (non-quantifiable) can also be increased by minimizing or eliminating the cold 'draft' (temperature) many residents experience at or near window surfaces that are at a noticeably lower temperature than the room air temperature. Lastly, although not measured in this experiment, highly insulating windows (triple-pane in this experiment) also have the potential to significantly reduce the noise transmittance through windows compared to standard double-pane windows. The metered data taken in the Lab Homes and data analysis presented here represent 70 days of data taken during the 2012 heating season. As such, the savings from highly insulating windows in the experimental home (Lab Home B) compared to the standard double-pane clear glass windows in the baseline home (Lab Home A) are only a portion of the energy savings expected from a year-long experiment that would include a cooling season. The cooling season experiment will take place in the homes in the summer of 2012, and results of that experiment will be reported in a subsequent report available to all stakeholders.

  15. Hybrid window layer for photovoltaic cells

    DOE Patents [OSTI]

    Deng, Xunming

    2010-02-23

    A novel photovoltaic solar cell and method of making the same are disclosed. The solar cell includes: at least one absorber layer which could either be a lightly doped layer or an undoped layer, and at least a doped window-layers which comprise at least two sub-window-layers. The first sub-window-layer, which is next to the absorber-layer, is deposited to form desirable junction with the absorber-layer. The second sub-window-layer, which is next to the first sub-window-layer, but not in direct contact with the absorber-layer, is deposited in order to have transmission higher than the first-sub-window-layer.

  16. Hybrid window layer for photovoltaic cells

    DOE Patents [OSTI]

    Deng, Xunming; Liao, Xianbo; Du, Wenhui

    2011-10-04

    A novel photovoltaic solar cell and method of making the same are disclosed. The solar cell includes: at least one absorber layer which could either be a lightly doped layer or an undoped layer, and at least a doped window-layers which comprise at least two sub-window-layers. The first sub-window-layer, which is next to the absorber-layer, is deposited to form desirable junction with the absorber-layer. The second sub-window-layer, which is next to the first sub-window-layer, but not in direct contact with the absorber-layer, is deposited in order to have transmission higher than the first-sub-window-layer.

  17. Hybrid window layer for photovoltaic cells

    DOE Patents [OSTI]

    Deng, Xunming; Liao, Xianbo; Du, Wenhui

    2011-02-01

    A novel photovoltaic solar cell and method of making the same are disclosed. The solar cell includes: at least one absorber layer which could either be a lightly doped layer or an undoped layer, and at least a doped window-layers which comprise at least two sub-window-layers. The first sub-window-layer, which is next to the absorber-layer, is deposited to form desirable junction with the absorber-layer. The second sub-window-layer, which is next to the first sub-window-layer, but not in direct contact with the absorber-layer, is deposited in order to have transmission higher than the first-sub-window-layer.

  18. Grid Window Tests on an 805-MHz Pillbox Cavity

    SciTech Connect (OSTI)

    Torun, Y.; Moretti, A.

    2015-06-01

    Muon ionization cooling channel designs use pillbox shaped RF cavities for improved power efficiency and fine control over phasing of individual cavities. For minimum scattering of the muon beam, the ends should be made out of a small thickness of high radiation length material. Good electrical and thermal conductivity are required to reduce power dissipation and remove the heat efficiently. Thin curved beryllium windows with TiN coating have been used successfully in the past. We have built an alternative win- dow set consisting of grids of tubes and tested these on a pillbox cavity previously used with both thin Be and thick Cu windows. The cavity was operated with a pair of grids as well as a single grid against a flat endplate.

  19. Laser sealed vacuum insulating window

    DOE Patents [OSTI]

    Benson, D.K.; Tracy, C.E.

    1985-08-19

    A laser sealed evacuated window panel is comprised of two glass panes held spaced apart in relation to each other by a plurality of spherical glass beads and glass welded around the edges to provide an evacuated space between the glass panes that is completely glass sealed from the exterior. The glass welded edge seal is obtained by welding the edges of the glass panes together with a laser beam while the glass panes and bead spacers are positioned in a vacuum furnace and heated to the annealing point of the glass to avoid stress fracture in the area of the glass weld. The laser welding in the furnace can be directed around the perimeter of the galss panel by a combination of rotating the glass panel and linearly translating or aiming the laser with a relay mirror.

  20. Laser sealed vacuum insulation window

    DOE Patents [OSTI]

    Benson, David K.; Tracy, C. Edwin

    1987-01-01

    A laser sealed evacuated window panel is comprised of two glass panes held spaced apart in relation to each other by a plurality of spherical glass beads and glass welded around the edges to provide an evacuated space between the glass panes that is completely glass sealed from the exterior. The glass welded edge seal is obtained by welding the edges of the glass panes together with a laser beam while the glass panes and bead spacers are positioned in a vacuum furnace and heated to the annealing point of the glass to avoid stress fracture in the area of the glass weld. The laser welding in the furnace can be directed around the perimeter of the glass panel by a combination of rotating the glass panel and linearly translating or aiming the laser with a relay mirror.

  1. Windows, Doors, & Skylights | Department of Energy

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

    Windows, Doors, & Skylights Windows, Doors, & Skylights Installing storm windows keep your home warm in the winter and cool in the summer while also lowering your energy bills by up to $350 a year. <a href="/node/797126" target="_blank">Start saving today by following a step-by-step guide in our new DIY Savings Project</a>. Installing storm windows keep your home warm in the winter and cool in the summer while also lowering your energy bills by up to $350

  2. Energy-Efficient Windows | Department of Energy

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

    and lighting to this sunny kitchen. | Photo courtesy of Emily Minton-Redfield for Jim Logan Architects. Energy-efficient windows provide space heating and lighting to this...

  3. Transparency: it's not just for windows

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

    Transparency: it's not just for windows Los Alamos National Laboratory's database of environmental monitoring data is now directly viewable by the public. March 20, 2012...

  4. Building Technologies Office Window and Envelope Technologies...

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

    * Collaborate with industry partners to improve ... value of energy efficiency Codes and Standards * Establish ... cost premium compared to standard IGU: Windows: <8ft 2 ...

  5. Dynamically Responsive Infrared Window Coatings | Department...

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

    Dynamically Responsive Infrared Window Coatings Addthis 1 of 5 An oxygen plasma etcher is ... Kyle Alvine checks on the progress of the plasma etch. Image: Pacific Northwest National ...

  6. Energy-Efficient Windows | Department of Energy

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

    fraction of incoming solar radiation through a window, reflective coatings reduce the transmission of solar radiation, and spectrally selective coatings filter out 40% to 70%...

  7. Design of an Aluminum Proton Beam Window for the Spallation Neutron Source

    SciTech Connect (OSTI)

    Janney, Jim G; McClintock, David A

    2012-01-01

    An aluminum proton beam window design is being considered at the Spallation Neutron Source primarily to increase the lifetime of the window, with secondary advantages of higher beam transport efficiency and lower activation. The window separates the core vessel, the location of the mercury target, from the vacuum of the accelerator, while withstanding the pass through of a proton beam of up to 2 MW with 1.0 GeV proton energy. The current aluminum alloy being investigated for the window material is 6061-T651 due to its combination of high strength, high thermal conductivity, and good resistance to aqueous corrosion, as well as demonstrated dependability in previous high-radiation environments. The window design will feature a thin plate with closely spaced cross drilled cooling holes. An analytical approach was used to optimize the dimensions of the window before finite element analysis was used to simulate temperature profiles and stress fields resulting from thermal and static pressure loading. The resulting maximum temperature of 60 C and Von Mises stress of 71 MPa are very low compared to allowables for Al 6061-T651. A significant challenge in designing an aluminum proton beam window for SNS is integrating the window with the current 316L SS shield blocks. Explosion bonding was chosen as a joining technique because of the large bonding area required. A test program has commenced to prove explosion bonding can produce a robust vacuum joint. Pending successful explosion bond testing, the aluminum proton beam window design will be proven acceptable for service in the Spallation Neutron Source.

  8. An Experimental and Analytical Evaluation of Wall And Window Retrofit Configurations: Supporting the Residential Retrofit Best Practices Guide

    SciTech Connect (OSTI)

    Stovall, Therese K; Petrie, Thomas; Kosny, Jan; Childs, Phillip W; Atchley, Jerald Allen; Hulvey, Kimberly D

    2007-11-01

    A Retrofit Best Practices Guide was developed to encourage homeowners to consider energy conservation issues whenever they modify their siding or windows. In support of this guide, an experimental program was implemented to measure the performance of a number of possible wall siding and window retrofit configurations. Both thermal and air-leakage measurements were made for a 2.4 x 2.4 m (8 x 8 ft) wall section with and without a 0.9 x 1.2 m (3 x 4 ft) window. The windows tested were previously well-characterized at a dedicated window test facility. A computer model was also used to provide information for the Best Practices Guide. The experimental data for walls and windows were used in conjunction with this model to estimate the total annual energy savings for several typical houses in a number of different locations.

  9. High-power RF window design for the PEP-II B Factory

    SciTech Connect (OSTI)

    Neubauer, M.; Hodgson, J.; Ng, C.; Schwarz, H.; Skarpaas, K.; Kroll, N. |; Rimmer, R.

    1994-06-01

    We describe the design of RF windows to transmit up to 500 kW CW to the PEP-II 476 MHz cavities. RF analysis of the windows using high-frequency simulation codes are described. These provide information about the power loss distribution in the ceramic and tim matching properties of the structure. Finite-element analyses of the resulting temperature distribution and thermal stresses are presented. Fabrication methods including a proposed scheme to compensate for thermal expansion s are discussed and hardware tests to validate this approach are described. The effects of surface coatings (intentional and otherwise) and the application of air cooling are considered.

  10. Measure Guideline: Window Repair, Rehabilitation, and Replacement

    SciTech Connect (OSTI)

    Baker, P.

    2012-12-01

    This measure guideline provides information and guidance on rehabilitating, retrofitting, and replacing existing window assemblies in residential construction. The intent is to provide information regarding means and methods to improve the energy and comfort performance of existing wood window assemblies in a way that takes into consideration component durability, in-service operation, and long term performance of the strategies.

  11. High Performance Window Attachments | Department of Energy

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

    High Performance Window Attachments High Performance Window Attachments Emerging Technologies Project for the 2013 Building Technologies Office's Program Peer Review PDF icon emrgtech20_curcija_040413.pdf More Documents & Publications Fenestration Software Tools Advanced Facades, Daylighting, and Complex Fenestration Systems OpenStudio - 2013 Peer Review

  12. Night-time naturally ventilated offices: Statistical simulations of window-use patterns from field monitoring

    SciTech Connect (OSTI)

    Yun, Geun Young; Steemers, Koen

    2010-07-15

    This paper investigates occupant behaviour of window-use in night-time naturally ventilated offices on the basis of a pilot field study, conducted during the summers of 2006 and 2007 in Cambridge, UK, and then demonstrates the effects of employing night-time ventilation on indoor thermal conditions using predictive models of occupant window-use. A longitudinal field study shows that occupants make good use of night-time natural ventilation strategies when provided with openings that allow secure ventilation, and that there is a noticeable time of day effect in window-use patterns (i.e. increased probability of action on arrival and departure). We develop logistic models of window-use for night-time naturally ventilated offices, which are subsequently applied to a behaviour algorithm, including Markov chains and Monte Carlo methods. The simulations using the behaviour algorithm demonstrate a good agreement with the observational data of window-use, and reveal how building design and occupant behaviour collectively affect the thermal performance of offices. They illustrate that the provision of secure ventilation leads to more frequent use of the window, and thus contributes significantly to the achievement of a comfortable indoor environment during the daytime occupied period. For example, the maximum temperature for a night-time ventilated office is found to be 3 C below the predicted value for a daytime-only ventilated office. (author)

  13. Buildings Energy Data Book: 5.2 Windows

    Buildings Energy Data Book [EERE]

    8 Typical Thermal Performance of Residential Windows, by Type Single-Glazed Clear Single-Glazed with Bronze Tint Double-Glazed Clear Double-Glazed with grey/Bronze Tint Double-Glazed with High Performance Tint Double-Glazed with High-Solar Gain Low-e Glass, Argon/Krypton Gas Double-Glazed with Moderate-Solar Gain Low-e Glass, Argon/Krypton Gas Double-Glazed with Low-Solar Gain Low-e (1) Glass, Argon/Krypton Gas Triple-Glazed (2) with High-Solar Gain Low-e Glass, Argon/Krypton Gas (3)

  14. Thermal Science Leaders Are Also Researchers | GE Global Research

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

    Thermal Science Leaders Are Also Researchers Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) Thermal Science Leaders Are Also Researchers Todd Wetzel 2013.01.08 I've got great news! One of my Lab Managers, Dr. Eric Ruggiero, was just awarded the 2013 AIAA Lawrence Sperry Award. I'm very fortunate, as I've got a great

  15. Butterfly-Inspired Thermal Imaging | GE Global Research

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

    Low-Cost Thermal Imaging Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) Butterfly-Inspired Design Enables Low-Cost Thermal Imaging Taking heat detection to a new level of sensitivity and speed, a team of scientists at GE Global Research, the technology development arm for the General Electric Company (NYSE: GE),

  16. Demonstration of the Performance of Highly Insulating (R-5) Windows in a Matched Pair of Homes

    SciTech Connect (OSTI)

    Widder, Sarah H.; Parker, Graham B.

    2013-12-05

    Improving the insulation and solar heat gain characteristics of a homes windows has the potential to significantly improve the homes overall thermal performance by reducing heat loss (in the winter), and cooling loss and solar heat gain (in the summer) through the windows. A high-quality installation will also minimize or reduce air leakage through the building envelope, decreasing infiltration and thus contributing to reduced heat transmission through building envelope. These improvements all contribute to decreasing overall annual home energy use. In addition to improvements in energy efficiency, highly insulating windows can have important impacts on occupant comfort by minimizing or eliminating the cold draft many homeowners experience at or near window surfaces that are at a noticeably cooler than the room air temperature. Energy efficiency measures, such as highly insulating windows, also have the potential to decrease peak energy use in a home, which can lead to measurable peak load decreases for a utility service territory if implemented on a large scale. High-performance windows now feature triple-pane glass, double low-e coatings, and vinyl insulated frames to achieve U-factors as low as 0.2 , as compared to double-pane clear glass windows with a U-factor of 0.67, which are common in existing homes across the United States. The highly insulating windows (as they will be referred to in this document) are now available from several manufacturers and show promise to yield considerable energy savings and thermal comfort improvements in homes.

  17. Purchasing Energy-Efficient Windows | Department of Energy

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

    Purchasing Energy-Efficient Windows Purchasing Energy-Efficient Windows October 13, 2008 - 11:29am Addthis John Lippert Windows connect us with the "great outdoors." They let in ...

  18. Supersymmetric Dualities beyond the Conformal Window

    SciTech Connect (OSTI)

    Spiridonov, V. P.; Vartanov, G. S.

    2010-08-06

    Using the superconformal (SC) indices techniques, we construct Seiberg type dualities for N=1 supersymmetric field theories outside the conformal windows. These theories are physically distinguished by the presence of chiral superfields with small or negative R charges.

  19. NREL Electrochromic Window Research Wins Award

    SciTech Connect (OSTI)

    2011-01-01

    Winners of the CO-LABS Governor's Award for High-Impact Research in Energy Efficiency, Dr. Satyen Deb at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) discovered that a small electrical charge can change the opacity of tungsten oxide from clear to tinted. He, Dr. Dane Gillaspie, and their fellow scientists at NREL then applied this knowledge to develop and transfer the technologies required to construct an electrochromic window, which can switch between clear and heavily tinted states. Electrochromic windows allow natural light in while adding tint to reduce summer heat and glare, and going clear to allow sunlight through in the winter. Broad adaptation of these windows could reduce US total energy use by four percent and reduce building cooling loads by 20%, much of this during expensive peak hours. Windows based on these discoveries are now being installed worldwide.

  20. Window Replacement, Rehabilitation, & Repair Guides - Building...

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

    Effec guid-window repair.jpg This Top Innovation describes research by Building Science Corporation to determine that whole-house energy savings of up to 10% can be achieved ...

  1. NREL Electrochromic Window Research Wins Award

    ScienceCinema (OSTI)

    None

    2013-05-29

    Winners of the CO-LABS Governor's Award for High-Impact Research in Energy Efficiency, Dr. Satyen Deb at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) discovered that a small electrical charge can change the opacity of tungsten oxide from clear to tinted. He, Dr. Dane Gillaspie, and their fellow scientists at NREL then applied this knowledge to develop and transfer the technologies required to construct an electrochromic window, which can switch between clear and heavily tinted states. Electrochromic windows allow natural light in while adding tint to reduce summer heat and glare, and going clear to allow sunlight through in the winter. Broad adaptation of these windows could reduce US total energy use by four percent and reduce building cooling loads by 20%, much of this during expensive peak hours. Windows based on these discoveries are now being installed worldwide.

  2. T-596: 0-Day Windows Network Interception Configuration Vulnerability |

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

    Department of Energy 96: 0-Day Windows Network Interception Configuration Vulnerability T-596: 0-Day Windows Network Interception Configuration Vulnerability April 6, 2011 - 5:48am Addthis PROBLEM: 0-Day exploit of IPv4 and IPv6 mechanics and how it applies to Microsoft Windows Operating systems. PLATFORM: Microsoft Operating Systems (OS) Windows Vista, Windows 7, and Windows 2008 Server ABSTRACT: The links below describe a parasitic IPv6 layered over a native IPv4 network. This attack can

  3. High-Efficiency Window Air Conditioners - Building America Top Innovation |

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

    Department of Energy High-Efficiency Window Air Conditioners - Building America Top Innovation High-Efficiency Window Air Conditioners - Building America Top Innovation This photo shows a window air conditioning unit in place in a window frame. Window air conditioners are inexpensive, portable, and can be installed by home occupants, making them a good solution for spot cooling and for installing air conditioning into homes that lack ductwork. However, window air conditioners have low

  4. Science on the Hill: Turning windows into solar panels

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

    Turning windows into solar panels Science on the Hill: Turning windows into solar panels Working with quantum dots, researchers achieve a breakthrough in solar-concentrating technology that can turn windows into electric generators. February 7, 2016 solar panel windows The luminescent solar concentrator could turn any window into a daytime power source. Science on the Hill: Turning windows into solar panels Sunlight is abundant, free and for all practical purposes, eternal. Harvesting that light

  5. Transparency: it's not just for windows

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

    Transparency: it's not just for windows Transparency: it's not just for windows Los Alamos National Laboratory's database of environmental monitoring data is now directly viewable by the public. March 20, 2012 Intellus environmental data The same environmental data used by LANL scientists can be viewed by anyone, anytime. Contact Environmental Communications & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email "The new system contains more than 9 million

  6. Window Daylighting Demo | Department of Energy

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

    Daylighting Demo Window Daylighting Demo Commercial Buildings Integration Project for the 2013 Building Technologies Office's Program Peer Review PDF icon commlbldgs20_selkowitz_040413.pdf More Documents & Publications Advanced Facades, Daylighting, and Complex Fenestration Systems High Performance Window Attachments Figure 1: Measurement of performance of ceiling tiles made of new phase change materials in test bed, in naturally ventilated and forced ventilation modes. Source: LBNL. CBERD:

  7. New High-Efficiency Window Prototype Result of DOE Partnership...

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

    ... Quicker with New Tool "Smart Windows" seen at light and dark settings. | Photo Courtesy of SAGE Electrochromics, Inc., by Susan Fleck Photography Making Smart Windows Smarter

  8. V-217: Microsoft Windows NAT Driver ICMP Packet Handling Denial...

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

    7: Microsoft Windows NAT Driver ICMP Packet Handling Denial of Service Vulnerability V-217: Microsoft Windows NAT Driver ICMP Packet Handling Denial of Service Vulnerability August...

  9. New Window on Primordial Non-Gaussianity (Journal Article) |...

    Office of Scientific and Technical Information (OSTI)

    New Window on Primordial Non-Gaussianity Citation Details In-Document Search Title: New Window on Primordial Non-Gaussianity Authors: Pajer, Enrico ; Zaldarriaga, Matias ...

  10. Diffraction scattering computed tomography: a window into the...

    Office of Scientific and Technical Information (OSTI)

    tomography: a window into the structures of complex nanomaterials Citation Details In-Document Search Title: Diffraction scattering computed tomography: a window into the ...

  11. Pennsylvania: New Series of Windows Has Potential to Save Energy...

    Office of Environmental Management (EM)

    New Series of Windows Has Potential to Save Energy for Commercial Buildings Pennsylvania: New Series of Windows Has Potential to Save Energy for Commercial Buildings March 6, 2014...

  12. Energy Savings from Window Attachments | Department of Energy

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

    PDF icon energysavingsfromwindowsattachments.pdf More Documents & Publications Fenestration Software Tools Residential Windows and Window Coverings: A Detailed View of the ...

  13. Windows and Building Envelope Overview - 2015 BTO Peer Review...

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

    Windows and Building Envelope Overview - 2015 BTO Peer Review Windows and Building Envelope Overview - 2015 BTO Peer Review Presenter: Bahman Habibzadeh, U.S. Department of Energy ...

  14. Energy-Efficient Window Treatments | Department of Energy

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

    Window Treatments September 25, 2012 - 9:04am Addthis The awnings on this home shade the windows and generate electricity. | Photo courtesy of iStockphoto...

  15. Side-by-Side Field Evaluation of Highly Insulating Windows in the PNNL Lab Homes

    SciTech Connect (OSTI)

    Widder, Sarah H.; Parker, Graham B.; Baechler, Michael C.; Bauman, Nathan N.

    2012-08-01

    To examine the energy, air leakage, and thermal performance of highly insulating windows, a field evaluation was undertaken in a matched pair of all-electric, factory-built Lab Homes located on the Pacific Northwest National Laboratory (PNNL) campus in Richland, Washington. The baseline Lab Home B was retrofitted with standard double-pane clear aluminum-frame slider windows and patio doors, while the experimental Lab Home A was retrofitted with Jeld-Wen triple-pane vinyl-frame slider windows and patio doors with a U-factor of 0.2 and solar heat gain coefficient of 0.19. To assess the window, the building shell air leakage, energy use, and interior temperatures of each home were compared during the 2012 winter heating and summer cooling seasons. The measured energy savings in Lab Home B averaged 5,821 watt-hours per day (Wh/day) during the heating season and 6,518 Wh/day during the cooling season. The overall whole-house energy savings of Lab Home B compared to Lab Home A are 11.6% 1.53% for the heating season and 18.4 2.06% for the cooling season for identical occupancy conditions with no window coverings deployed. Extrapolating these energy savings numbers based on typical average heating degree days and cooling degree days per year yields an estimated annual energy savings of 12.2%, or 1,784 kWh/yr. The data suggest that highly insulating windows are an effective energy-saving measure that should be considered for high-performance new homes and in existing retrofits. However, the cost effectiveness of the measure, as determined by the simple payback period, suggests that highly insulating window costs continue to make windows difficult to justify on a cost basis alone. Additional reductions in costs via improvements in manufacturing and/or market penetration that continue to drive down costs will make highly insulating windows much more viable as a cost-effective energy efficiency measure. This study also illustrates that highly insulating windows have important impacts on peak load, occupant comfort, and condensation potential, which are not captured in the energy savings calculation. More consistent and uniform interior temperature distributions suggest that highly insulated windows, as part of a high performance building envelope, may enable more centralized duct design and downsized HVAC systems. Shorter, more centralized duct systems and smaller HVAC systems to yield additional cost savings, making highly insulating windows more cost effective as part of a package of new construction or retrofit measures which achieve significant reductions in home energy use.

  16. Hot Cell Window Shielding Analysis Using MCNP

    SciTech Connect (OSTI)

    Chad L. Pope; Wade W. Scates; J. Todd Taylor

    2009-05-01

    The Idaho National Laboratory Materials and Fuels Complex nuclear facilities are undergoing a documented safety analysis upgrade. In conjunction with the upgrade effort, shielding analysis of the Fuel Conditioning Facility (FCF) hot cell windows has been conducted. This paper describes the shielding analysis methodology. Each 4-ft thick window uses nine glass slabs, an oil film between the slabs, numerous steel plates, and packed lead wool. Operations in the hot cell center on used nuclear fuel (UNF) processing. Prior to the shielding analysis, shield testing with a gamma ray source was conducted, and the windows were found to be very effective gamma shields. Despite these results, because the glass contained significant amounts of lead and little neutron absorbing material, some doubt lingered regarding the effectiveness of the windows in neutron shielding situations, such as during an accidental criticality. MCNP was selected as an analysis tool because it could model complicated geometry, and it could track gamma and neutron radiation. A bounding criticality source was developed based on the composition of the UNF. Additionally, a bounding gamma source was developed based on the fission product content of the UNF. Modeling the windows required field inspections and detailed examination of drawings and material specifications. Consistent with the shield testing results, MCNP results demonstrated that the shielding was very effective with respect to gamma radiation, and in addition, the analysis demonstrated that the shielding was also very effective during an accidental criticality.

  17. Microelectronic device package with an integral window

    DOE Patents [OSTI]

    Peterson, Kenneth A.; Watson, Robert D.

    2002-01-01

    An apparatus for packaging of microelectronic devices, including an integral window. The microelectronic device can be a semiconductor chip, a CCD chip, a CMOS chip, a VCSEL chip, a laser diode, a MEMS device, or a IMEMS device. The package can include a cofired ceramic frame or body. The package can have an internal stepped structure made of one or more plates, with apertures, which are patterned with metallized conductive circuit traces. The microelectronic device can be flip-chip bonded on the plate to these traces, and oriented so that the light-sensitive side is optically accessible through the window. A cover lid can be attached to the opposite side of the package. The result is a compact, low-profile package, having an integral window that can be hermetically-sealed. The package body can be formed by low-temperature cofired ceramic (LTCC) or high-temperature cofired ceramic (HTCC) multilayer processes with the window being simultaneously joined (e.g. cofired) to the package body during LTCC or HTCC processing. Multiple chips can be located within a single package. The cover lid can include a window. The apparatus is particularly suited for packaging of MEMS devices, since the number of handling steps is greatly reduced, thereby reducing the potential for contamination.

  18. 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

  19. Nanolens Window Coatings for Daylighting | Department of Energy

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

    Nanolens Window Coatings for Daylighting Nanolens Window Coatings for Daylighting Emerging Technologies Project for the 2013 Building Technologies Office's Program Peer Review PDF icon emrgtech18_alvine_040413.pdf More Documents & Publications Dynamically Responsive Infrared Window Coatings Advanced Facades, Daylighting, and Complex Fenestration Systems Window Daylighting Demo

  20. MOBILITY AGREEMENT

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

    MOBILITY AGREEMENT I hereby acknowledge that, as a condition of my employment as a Criminal Investigator with the Department of Energy, Office of Inspector General, I may be required to relocate to an OIG office in another geographic location based on the needs of the organization. I understand that my failure to accept such a directed reassignment could be a basis for my separation from the service. _______________________________ Signature Date

  1. Integral window hermetic fiber optic components

    SciTech Connect (OSTI)

    Dalton, R.D.; Kramer, D.P.; Massey, R.T.; Waker, D.A.

    1994-12-31

    In the fabrication of igniters, actuators, detonators, and other pyrotechnic devices to be activated by a laser beam, an integral optical glass window is formed by placing a preform in the structural member of the device and then melting the glass and sealing it in place by heating at a temperature between the ceramming temperature of the glass and the melting point of the metal, followed by rapid furnace cooling to avoid devitrification. No other sealing material is needed to achieve hermeticity. A preferred embodiment of this type of device is fabricated by allowing the molten glass to flow further and form a plano-convex lens integral with and at the bottom of the window. The lens functions to decrease the beam divergence caused by refraction of the laser light passing through the window when the device is fired by means of a laser beam.

  2. Checking out HUD`s proposed mobile home performance standards

    SciTech Connect (OSTI)

    Judkoff, R.

    1993-11-01

    This article evaluates both the performance of two mobile homes built to meet recently proposed federal energy performance standards and the standards themselves. Topics include test methods, results, thermal exposure infrared scan results; regulators, thermal characteristics of test homes, real life conditions, factory observations, the future of mobile home energy efficiency.

  3. Proton irradiation damage of an annealed Alloy 718 beam window

    SciTech Connect (OSTI)

    Bach, H. T.; Anderoglu, O.; Saleh, T. A.; Romero, T. J.; Kelsey, C. T.; Olivas, E. R.; Sencer, B. H.; Dickerson, P. O.; Connors, M. A.; John, K. D.; Maloy, S. A.

    2015-04-01

    Mechanical testing and microstructural analysis was performed on an Alloy 718 window that was in use at the Los Alamos Neutron Science Center (LANSCE) Isotope Production Facility (IPF) for approximately 5 years. It was replaced as part of the IPF preventive maintenance program. The window was transported to the Wing 9 hot cells at the Chemical and Metallurgical Research (CMR) LANL facility, visually inspected and 3-mm diameter samples were trepanned from the window for mechanical testing and microstructural analysis. Shear punch testing and optical metallography was performed at the CMR hot cells. The 1-mm diameter shear punch disks were cut into smaller samples to further reduce radiation exposure dose rate using Focus Ion Beam (FIB) and microstructure changes were analyzed using a Transmission Electron Microscopy (TEM). Irradiation doses were determined to be ~0.2–0.7 dpa (edge) to 11.3 dpa (peak of beam intensity) using autoradiography and MCNPX calculations. The corresponding irradiation temperatures were calculated to be ~34–120 °C with short excursion to be ~47–220 °C using ANSYS. Mechanical properties and microstructure analysis results with respect to calculated dpa and temperatures show that significant work hardening occurs but useful ductility still remains. The hardening in the lowest dose region (~0.2–0.7 dpa) was the highest and attributed to the formation of γ" precipitates and irradiation defect clusters/bubbles whereas the hardening in the highest dose region (~11.3 dpa) was lower and attributed mainly to irradiation defect clusters and some thermal annealing.

  4. Proton irradiation damage of an annealed Alloy 718 beam window

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

    Bach, H. T.; Anderoglu, O.; Saleh, T. A.; Romero, T. J.; Kelsey, C. T.; Olivas, E. R.; Sencer, B. H.; Dickerson, P. O.; Connors, M. A.; John, K. D.; et al

    2015-04-01

    Mechanical testing and microstructural analysis was performed on an Alloy 718 window that was in use at the Los Alamos Neutron Science Center (LANSCE) Isotope Production Facility (IPF) for approximately 5 years. It was replaced as part of the IPF preventive maintenance program. The window was transported to the Wing 9 hot cells at the Chemical and Metallurgical Research (CMR) LANL facility, visually inspected and 3-mm diameter samples were trepanned from the window for mechanical testing and microstructural analysis. Shear punch testing and optical metallography was performed at the CMR hot cells. The 1-mm diameter shear punch disks were cutmore » into smaller samples to further reduce radiation exposure dose rate using Focus Ion Beam (FIB) and microstructure changes were analyzed using a Transmission Electron Microscopy (TEM). Irradiation doses were determined to be ~0.2–0.7 dpa (edge) to 11.3 dpa (peak of beam intensity) using autoradiography and MCNPX calculations. The corresponding irradiation temperatures were calculated to be ~34–120 °C with short excursion to be ~47–220 °C using ANSYS. Mechanical properties and microstructure analysis results with respect to calculated dpa and temperatures show that significant work hardening occurs but useful ductility still remains. The hardening in the lowest dose region (~0.2–0.7 dpa) was the highest and attributed to the formation of γ" precipitates and irradiation defect clusters/bubbles whereas the hardening in the highest dose region (~11.3 dpa) was lower and attributed mainly to irradiation defect clusters and some thermal annealing.« less

  5. Solar optical materials for innovative window design

    SciTech Connect (OSTI)

    Lampert, C.M.

    1982-08-01

    New and innovative optical materials and coatings can greatly improve the efficiency of window energy systems. These potential materials and coatings increase energy efficiency by reducing radiative losses in the infrared, or reducing visible reflection losses or controlling overheating due to solar gain. Current progress in heat mirror coatings for glass and polymeric substrates is presented. Highly doped semiconducting oxides and metal/dielectric interference coatings are reviewed. Physical and optical properties are outlined for antireflection films and transparent aerogel insulation media. The potential for optical switching films as window elements includes discussions of electrochromic, photochromic and other physical switching processes.

  6. Window for radiation detectors and the like

    DOE Patents [OSTI]

    Sparks, C.J. Jr.; Ogle, J.C.

    1975-10-28

    An improved x- and gamma-radiation and particle transparent window for the environment-controlling enclosure of various types of radiation and particle detectors is provided by a special graphite foil of a thickness of from about 0.1 to 1 mil. The graphite must have very parallel hexagonal planes with a mosaic spread no greater than 5$sup 0$ to have the necessary strength in thin sections to support one atmosphere or more of pressure. Such graphite is formed by hot- pressing and annealing pyrolytically deposited graphite and thereafter stripping off layers of sufficient thickness to form the window.

  7. Windows and Building Envelope Overview - 2015 BTO Peer Review | Department

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

    of Energy Windows and Building Envelope Overview - 2015 BTO Peer Review Windows and Building Envelope Overview - 2015 BTO Peer Review Presenter: Bahman Habibzadeh, U.S. Department of Energy View the Presentation PDF icon Windows and Building Envelope Overview - 2015 BTO Peer Review More Documents & Publications Window and Envelope Technologies Overview - 2014 BTO Peer Review Windows and Envelope Subprogram Overview - 2016 BTO Peer Review 2014 Building Technologies Office Program Peer

  8. Atmospheric Pressure Deposition for Electrochromic Windows | Department of

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

    Energy Atmospheric Pressure Deposition for Electrochromic Windows Atmospheric Pressure Deposition for Electrochromic Windows Emerging Technologies Project for the 2013 Building Technologies Office's Program Peer Review PDF icon emrgtech22_tenent_040413.pdf More Documents & Publications NREL senior scientist, Robert Tenent, Ph.D., with equipment for low cost processing (deposition) of window coatings materials. Dynamic Windows Low-Cost Solutions for Dynamic Window Material CX-003799:

  9. Interior and Exterior Low-E Storm Window Installation

    SciTech Connect (OSTI)

    Witters, Sarah

    2014-09-03

    Until recently, energy-efficient window retrofit options have largely been limited to repair or replacement; leaving the homeowner to decide between affordability and deeper energy savings. A new and improved low-e storm window boasts a combination of curb appeal and energy efficiency, all for a fraction of the cost of window replacement. A recent whole-home experiment performed by PNNL suggests that attaching low-e storm windows can result in as much energy savings replacing the windows.

  10. Research and Development Roadmap: Windows and Building Envelope |

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

    Department of Energy and Development Roadmap: Windows and Building Envelope Research and Development Roadmap: Windows and Building Envelope Cover of windows and envelope report, depicting a house, storefront, and multiple office windows. This Building Technologies Office (BTO) Research and Development (R&D) Roadmap identifies priority windows and building envelope R&D areas of interest. Cost and performance targets are identified for each key R&D area. The roadmap describes the

  11. Predicting Electrochemical Windows of Nitrogen Containing Aromatic

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

    Molecules - Joint Center for Energy Storage Research October 20, 2014, Research Highlights Predicting Electrochemical Windows of Nitrogen Containing Aromatic Molecules Various nitrogen containing aromatic base molecules and a descriptive relationship derived to predict their reduction potentials is shown. Scientific Achievement A descriptive relationship is derived for computing reduction potentials of quinoxaline derivatives from the orbital energies of the neutral molecules without

  12. Residential Windows and Window Coverings: A Detailed View of the Installed Base and User Behavior

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

    Residential Windows and Window Coverings: A Detailed View of the Installed Base and User Behavior SEPTEMBER 2013 Prepared for: Building Technologies Office Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Prepared by: D&R International, Ltd. September 2013 Prepared for: Building Technologies Office Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Prepared By: D&R International, Ltd. 1300 Spring Street, Suite 500 Silver Spring, MD 20910

  13. Exciting News About LEAP-X and Thermal Systems | GE Global Research

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

    Exciting News About LEAP-X and Thermal Systems Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) Exciting News About LEAP-X and Thermal Systems Todd Wetzel 2011.07.20 I was excited to hear that the LEAP-X engine (Leading Edge Aviation Propulsion) developed by CFM International, a 50/50 joint venture between GE and Snecma

  14. Benefits of Using Mobile Transformers and Mobile Substations...

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

    Using Mobile Transformers and Mobile Substations for Rapidly Restoring Electrical Service: ... Benefits of Using Mobile Transformers and Mobile Substations for Rapidly Restoring ...

  15. Energy performance analysis of prototype electrochromic windows

    SciTech Connect (OSTI)

    Sullivan, R.; Rubin, M.; Selkowitz, S.

    1996-12-01

    This paper presents the results of a study investigating the energy performance of three newly developed prototype electrochromic devices. The DOE-2.1 E energy simulation program was used to analyze the annual cooling, lighting, and total electric energy use and peak demand as a function of window type and size. The authors simulated a prototypical commercial office building module located in the cooling-dominated locations of Phoenix, AZ and Miami, FL. Heating energy use was also studied in the heating-dominated location of Madison, WI. Daylight illuminance was used to control electrochromic state-switching. Two types of window systems were analyzed; i.e., the outer pane electrochromic glazing was combined with either a conventional low-E or a spectrally selective inner pane. The properties of the electrochromic glazings are based on measured data of new prototypes developed as part of a cooperative DOE-industry program. The results show the largest difference in annual electric energy performance between the different window types occurs in Phoenix and is about 6.5 kWh/m{sup 2} floor area (0.60 kWh/ft{sup 2}) which can represent a cost of about $.52/m{sup 2} ($.05/ft{sup 2}) using electricity costing $.08/kWh. In heating-dominated locations, the electrochromic should be maintained in its bleached state during the heating season to take advantage of beneficial solar heat gain which would reduce the amount of required heating. This also means that the electrochromic window with the largest solar heat gain coefficient is best.

  16. Energy and Power Evaluation Program for Windows

    Energy Science and Technology Software Center (OSTI)

    2000-06-27

    ENPEP for windows has its origins in the DOS version of the software, however, the Windows release is significantly modified and rather different in structure and capabilities from the older DOS version of ENPEP. ENPEP for Windows provides the user with a graphical interface for designing a comprehensive model of the energy system of a country or region. The BALANCE submodel processes a representative network of all energy production, conversion, transport, distribution, and utilization activitiesmore » in a country (or region) as well as the flows of energy and fuels among these activities. The objective of the model is to simulate energy market and determine energy supply and demand balance over a long-term period of up to 75 years. The environmental aspect is also taken into account by calculating the emissions of various pollutants. In addition to the energy costs, the environmental costs are also calculated by the model. These costs can be used to affect the solution found by the market equilibrium algorithm. The main purpose of the software is to provide analytical capability and tools for the various analyses of energy and environmental systems, as well as for development of long-term energy strategy of a country or region.« less

  17. Numerical prediction of window condensation potential

    SciTech Connect (OSTI)

    McGowan, A.G.

    1995-08-01

    Although a substantial amount of effort has been expended to develop numerical methods for determining windows U-factors (EE 1983; Goss and Curcija 1994; Standaert 1985; CSA 1993a; NFRC 1991), there has been little work to data on using numerical methods to predict condensation potential. It is perhaps of direct interest to most ASHRAE members to determine heat loss and solar gains through windows as a precursor to sizing heating and cooling equipment, but condensation has long been recognized as an extremely important issue for consumers (and, consequently, for window manufacturers). Moreover, building scientists recognize the link between condensation and increased energy consumption (due to latent loads), reduced occupant comfort and indoor air quality (from the presence of bacteria and mold), and structural damage (where accumulated condensation is absorbed by the building material, thus reducing their structural stability). The National Fenestration Rating Council (NFRC) is developing a rating method for condensation potential in fenestration products as part of its mandate from the US Department of Energy (DOE). A rating method would benefit from the use of simulation as a supplement to physical condensation resistance testing to reduce the cost and time required for implementation and increase the flexibility of the rating method. This paper outlines one of the necessary components in the application of numerical methods for evaluating condensation in fenestration products. The theoretical approach and its practical application are discussed, as well as some comparisons between numerical prediction and physical test results for a sample of products.

  18. Determines the Thermal and Optical Properties of Fenestration Systems

    Energy Science and Technology Software Center (OSTI)

    1995-01-27

    WINDOW4.1 computes the thermal properties of windows and other fenestration elements used in typical residential and commercial buildings. Manufactures, specifiers, architects, consumers, and the energy code specialists all need to know these properties (U-values, Solar Heat Gain Coefficients, optical properties). The use of this program to calculate these properties is typically much more cost effective than laboratory test procedures. Properties of complete window systems are based on libraries (or user input) component data.

  19. Updating the Doors and Windows | Department of Energy

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

    and Windows Updating the Doors and Windows August 23, 2012 - 2:46pm Addthis Stephanie Price Communicator, National Renewable Energy Laboratory Since I can't afford to replace...

  20. New Window Technology Saves Energy and the View | Department...

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

    New Window Technology Saves Energy and the View New Window Technology Saves Energy and the View November 5, 2013 - 3:55pm Addthis Researchers at the Energy Department's National...

  1. Energy Performance Ratings for Windows, Doors, and Skylights...

    Energy Savers [EERE]

    The NFRC label can be found on all ENERGY STAR qualified window, door, and skylight ... U-factor is the rate at which a window, door, or skylight conducts non-solar heat flow. ...

  2. EERE Success Story-Pennsylvania: Window Technology First of Its...

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

    Windows play a significant role in a building's energy use; in 2010, 2.55 quads of energy were lost through windows-the equivalent of more than 20 billion gallons of gasoline. In ...

  3. My Energy Audit, Part 2: Windows | Department of Energy

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

    My Energy Audit, Part 2: Windows My Energy Audit, Part 2: Windows July 9, 2012 - 1:48pm Addthis Stephanie Price Communicator, National Renewable Energy Laboratory Last time I wrote ...

  4. EERE Success Story-Energy-Efficient Smart Windows are Lowering...

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

    Energy-Efficient Smart Windows are Lowering Energy Costs EERE Success Story-Energy-Efficient Smart Windows are Lowering Energy Costs September 9, 2015 - 12:11pm Addthis Low-E ...

  5. Windows and Envelope Subprogram Overview - 2016 BTO Peer Review |

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

    Department of Energy Windows and Envelope Subprogram Overview - 2016 BTO Peer Review Windows and Envelope Subprogram Overview - 2016 BTO Peer Review Presenter: Karma Sawyer, U.S. Department of Energy This presentation at the 2016 Peer Review provided an overview of the Building Technologies Office's Windows and Envelope Subprogram. Through robust feedback, the BTO Program Peer Review enhances existing efforts and improves future designs. PDF icon 2016 BTO Peer Review Presentation-Windows and

  6. Highly Insulating Residential Windows Using Smart Automated Shading |

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

    Department of Energy Highly Insulating Residential Windows Using Smart Automated Shading Highly Insulating Residential Windows Using Smart Automated Shading Addthis 1 of 3 Residential 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 with integrated sensors, control logic and a motorized shade between glass panes. Image: Lawrence Berkeley National Laboratory 3 of 3

  7. Window, Door, and Skylight Products and Services | Department of Energy

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

    Window, Door, and Skylight Products and Services Window, Door, and Skylight Products and Services Window, Door, and Skylight Products and Services Use the following links to get product information and locate professional services for windows, doors, and skylights. Product Information Awnings in Residential Buildings: The Impact on Energy Use and Peak Demand University of Minnesota Center for Sustainable Building Research Independently Tested and Certified Energy Performance ENERGY STAR®

  8. Cooperating mobile robots

    DOE Patents [OSTI]

    Harrington, John J.; Eskridge, Steven E.; Hurtado, John E.; Byrne, Raymond H.

    2004-02-03

    A miniature mobile robot provides a relatively inexpensive mobile robot. A mobile robot for searching an area provides a way for multiple mobile robots in cooperating teams. A robotic system with a team of mobile robots communicating information among each other provides a way to locate a source in cooperation. A mobile robot with a sensor, a communication system, and a processor, provides a way to execute a strategy for searching an area.

  9. Developing Low-Conductance Window Frames: Capabilities and Limitations of Current Window Heat Transfer Design Tools

    SciTech Connect (OSTI)

    Gustavsen, Arild; Arasteh, Dariush; Jelle, Bjorn Petter; Curcija, Charlie; Kohler, Christian

    2008-09-11

    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 that incorporate very low-conductance glazing. Developing low-conductance window frames requires accurate simulation tools for product research and development. Based on a literature review and an evaluation of current methods of modeling heat transfer through window frames, we conclude that current procedures specified in ISO standards are not sufficiently adequate for accurately evaluating heat transfer through the low-conductance frames. We conclude that the near-term priorities for improving the modeling of heat transfer through low-conductance frames are: (1) Add 2D view-factor radiation to standard modeling and examine the current practice of averaging surface emissivity based on area weighting and the process of making an equivalent rectangular frame cavity. (2) Asses 3D radiation effects in frame cavities and develop recommendation for inclusion into the design fenestration tools. (3) Assess existing correlations for convection in vertical cavities using CFD. (4) Study 2D and 3D natural convection heat transfer in frame cavities for cavities that are proven to be deficient from item 3 above. Recommend improved correlations or full CFD modeling into ISO standards and design fenestration tools, if appropriate. (5) Study 3D hardware short-circuits and propose methods to ensure that these effects are incorporated into ratings. (6) Study the heat transfer effects of ventilated frame cavities and propose updated correlations.

  10. Characterization of an explosively bonded aluminum proton beam window for the Spallation Neutron Source

    SciTech Connect (OSTI)

    McClintock, David A; Janney, Jim G; Parish, Chad M

    2014-01-01

    An effort is underway at the Spallation Neutron Source (SNS) to change the design of the 1st Generation high-nickel alloy proton beam window (PBW) to one that utilizes aluminum for the window material. One of the key challenges to implementation of an aluminum PBW at the SNS was selection of an appropriate joining method to bond an aluminum window to the stainless steel bulk shielding of the PBW assembly. An explosively formed bond was selected as the most promising joining method for the aluminum PBW design. A testing campaign was conducted to evaluate the strength and efficacy of explosively formed bonds that were produced using two different interlayer materials: niobium and titanium. The characterization methods reported here include tensile testing, thermal-shock leak testing, optical microscopy, and advanced scanning electron microscopy. All tensile specimens examined failed in the aluminum interlayer and measured tensile strengths were all slightly greater than the native properties of the aluminum interlayer, while elongation values were all slightly lower. A leak developed in the test vessel with a niobium interlayer joint after repeated thermal-shock cycles, and was attributed to an extensive crack network that formed in a layer of niobium-rich intermetallics located on the bond interfaces of the niobium interlayer; the test vessel with a titanium interlayer did not develop a leak under the conditions tested. Due to the experience gained from these characterizations, the explosively formed bond with a titanium interlayer was selected for the aluminum PBW design at the SNS.

  11. How Have You Improved the Efficiency of Your Windows? | Department of

    Energy Savers [EERE]

    Energy Have You Improved the Efficiency of Your Windows? How Have You Improved the Efficiency of Your Windows? March 18, 2010 - 7:57pm Addthis This week, John told you about his experience with window shades that improve the energy efficiency of his windows. There are several things you can do to improve the efficiency of existing windows, including adding storm windows, caulking or weatherstripping, or using window treatments. How have you improved the efficiency of your windows? Each

  12. Mobile phone and my health

    SciTech Connect (OSTI)

    Surducan, Aneta; Dabala, Dana; Neamtu, Camelia Surducan, Vasile Surducan, Emanoil

    2013-11-13

    The interaction of the microwave radiation emitted by mobile phones with the user's body is analyzed from the International Commission on Non-Ionizing Radiation Protection (ICNIRP) recommendations perspective as a correlation between the specific absorption ratio (SAR) of the mobile phone and the call duration. The relative position of the cell phone to the user's body, the dielectric properties of the exposed body parts, the SAR value and the call duration are considered in the local body temperature rise due to the microwave heating effect. The recommended local temperature rise limit in the human body is evaluated according to standards. The aim of this study is to disseminate information to young people, especially high school students, about the microwave thermal effects on the human body, to make them aware of the environmental electromagnetic pollution and to offer them a simple method of biological self protection.

  13. Single level microelectronic device package with an integral window

    DOE Patents [OSTI]

    Peterson, Kenneth A.; Watson, Robert D.

    2003-12-09

    A package with an integral window for housing a microelectronic device. The integral window is bonded directly to the package without having a separate layer of adhesive material disposed in-between the window and the package. The device can be a semiconductor chip, CCD chip, CMOS chip, VCSEL chip, laser diode, MEMS device, or IMEMS device. The package can be formed of a multilayered LTCC or HTCC cofired ceramic material, with the integral window being simultaneously joined to the package during cofiring. The microelectronic device can be flip-chip interconnected so that the light-sensitive side is optically accessible through the window. A glob-top encapsulant or protective cover can be used to protect the microelectronic device and electrical interconnections. The result is a compact, low profile package having an integral window that is hermetically sealed to the package prior to mounting and interconnecting the microelectronic device.

  14. Bi-level microelectronic device package with an integral window

    DOE Patents [OSTI]

    Peterson, Kenneth A.; Watson, Robert D.

    2004-01-06

    A package with an integral window for housing a microelectronic device. The integral window is bonded directly to the package without having a separate layer of adhesive material disposed in-between the window and the package. The device can be a semiconductor chip, CCD chip, CMOS chip, VCSEL chip, laser diode, MEMS device, or IMEMS device. The multilayered package can be formed of a LTCC or HTCC cofired ceramic material, with the integral window being simultaneously joined to the package during LTCC or HTCC processing. The microelectronic device can be flip-chip bonded so that the light-sensitive side is optically accessible through the window. The package has at least two levels of circuits for making electrical interconnections to a pair of microelectronic devices. The result is a compact, low-profile package having an integral window that is hermetically sealed to the package prior to mounting and interconnecting the microelectronic device(s).

  15. High efficiency novel window air conditioner

    SciTech Connect (OSTI)

    Bansal, Pradeep

    2015-07-24

    This paper presents the technical development of a high efficiency window air conditioner. In order to achieve higher energy efficiency ratio (EER), the original capacity of the R410A unit was downgraded by replacing the original compressor with a lower capacity but higher EER compressor, while all heat exchangers and the chassis from the original unit were retained. The other subsequent major modifications included – the AC fan motor being replaced with a brushless high efficiency electronically commuted motor (ECM) motor, the capillary tube being replaced with a needle valve to better control the refrigerant flow and refrigerant set points, and R410A being replaced with drop-in environmentally friendly binary mixture of R32 (85% molar concentration)/R125 (15% molar concentration). All these modifications resulted in significant EER enhancement of the modified unit.

  16. INTEGRATED ENERGY EFFICIENT WINDOW-WALL SYSTEMS

    SciTech Connect (OSTI)

    Michael Arney, Ph.D.

    2002-12-31

    The building industry faces the challenge of reducing energy use while simultaneously improving construction methods and marketability. This paper describes the first phase of a project to address these concerns by designing an Integrated Window Wall System (IWWS) that can be commercialized. This work builds on previous research conducted during the 1990's by Lawrence Berkeley national Laboratories (LBNL). During this phase, the objective was to identify appropriate technologies, problems and issues and develop a number of design concepts. Four design concepts were developed into prototypes and preliminary energy analyses were conducted Three of these concepts (the foam wall, steel wall, and stiffened plate designs) showed particular potential for meeting the project objectives and will be continued into a second phase where one or two of the systems will be brought closer to commercialization.

  17. High efficiency novel window air conditioner

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

    Bansal, Pradeep

    2015-01-01

    This paper presents the technical development of a high efficiency window air conditioner. In order to achieve higher energy efficiency ratio (EER), the original capacity of the R410A unit was downgraded by replacing the original compressor with a lower capacity but higher EER compressor, while all heat exchangers and the chassis from the original unit were retained. The other subsequent major modifications included – the AC fan motor being replaced with a brushless high efficiency electronically commuted motor (ECM) motor, the capillary tube being replaced with a needle valve to better control the refrigerant flow and refrigerant set points, andmore » R410A being replaced with drop-in environmentally friendly binary mixture of R32 (85% molar concentration)/R125 (15% molar concentration). All these modifications resulted in significant EER enhancement of the modified unit.« less

  18. High efficiency novel window air conditioner

    SciTech Connect (OSTI)

    Bansal, Pradeep

    2015-01-01

    This paper presents the technical development of a high efficiency window air conditioner. In order to achieve higher energy efficiency ratio (EER), the original capacity of the R410A unit was downgraded by replacing the original compressor with a lower capacity but higher EER compressor, while all heat exchangers and the chassis from the original unit were retained. The other subsequent major modifications included – the AC fan motor being replaced with a brushless high efficiency electronically commuted motor (ECM) motor, the capillary tube being replaced with a needle valve to better control the refrigerant flow and refrigerant set points, and R410A being replaced with drop-in environmentally friendly binary mixture of R32 (85% molar concentration)/R125 (15% molar concentration). All these modifications resulted in significant EER enhancement of the modified unit.

  19. Low heat transfer, high strength window materials

    DOE Patents [OSTI]

    Berlad, Abraham L.; Salzano, Francis J.; Batey, John E.

    1978-01-01

    A multi-pane window with improved insulating qualities; comprising a plurality of transparent or translucent panes held in an essentially parallel, spaced-apart relationship by a frame. Between at least one pair of panes is a convection defeating means comprising an array of parallel slats or cells so designed as to prevent convection currents from developing in the space between the two panes. The convection defeating structures may have reflective surfaces so as to improve the collection and transmittance of the incident radiant energy. These same means may be used to control (increase or decrease) the transmittance of solar energy as well as to decouple the radiative transfer between the interior surfaces of the transparent panes.

  20. Simulating Complex Window Systems using BSDF Data

    SciTech Connect (OSTI)

    Konstantoglou, Maria; Jonsson, Jacob; Lee, Eleanor

    2009-06-22

    Nowadays, virtual models are commonly used to evaluate the performance of conventional window systems. Complex fenestration systems can be difficult to simulate accurately not only because of their geometry but also because of their optical properties that scatter light in an unpredictable manner. Bi-directional Scattering Distribution Functions (BSDF) have recently been developed based on a mixture of measurements and modelling to characterize the optics of such systems. This paper describes the workflow needed to create then use these BSDF datasets in the Radiance lighting simulation software. Limited comparisons are made between visualizations produced using the standard ray-tracing method, the BSDF method, and that taken in a full-scale outdoor mockup.

  1. Managing coherence via put/get windows

    DOE Patents [OSTI]

    Blumrich, Matthias A.; Chen, Dong; Coteus, Paul W.; Gara, Alan G.; Giampapa, Mark E.; Heidelberger, Philip; Hoenicke, Dirk; Ohmacht, Martin

    2012-02-21

    A method and apparatus for managing coherence between two processors of a two processor node of a multi-processor computer system. Generally the present invention relates to a software algorithm that simplifies and significantly speeds the management of cache coherence in a message passing parallel computer, and to hardware apparatus that assists this cache coherence algorithm. The software algorithm uses the opening and closing of put/get windows to coordinate the activated required to achieve cache coherence. The hardware apparatus may be an extension to the hardware address decode, that creates, in the physical memory address space of the node, an area of virtual memory that (a) does not actually exist, and (b) is therefore able to respond instantly to read and write requests from the processing elements.

  2. Managing coherence via put/get windows

    DOE Patents [OSTI]

    Blumrich, Matthias A.; Chen, Dong; Coteus, Paul W.; Gara, Alan G.; Giampapa, Mark E.; Heidelberger, Philip; Hoenicke, Dirk; Ohmacht, Martin

    2011-01-11

    A method and apparatus for managing coherence between two processors of a two processor node of a multi-processor computer system. Generally the present invention relates to a software algorithm that simplifies and significantly speeds the management of cache coherence in a message passing parallel computer, and to hardware apparatus that assists this cache coherence algorithm. The software algorithm uses the opening and closing of put/get windows to coordinate the activated required to achieve cache coherence. The hardware apparatus may be an extension to the hardware address decode, that creates, in the physical memory address space of the node, an area of virtual memory that (a) does not actually exist, and (b) is therefore able to respond instantly to read and write requests from the processing elements.

  3. MobileMatch App

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

    MobileMatch VolunteerMatch Mobile App MobileMatch is a mobile extension (app) to LANL's VolunteerMatch site that allows volunteers to search, sign up and track hours. Contact Giving Campaigns & Volunteering Debbi Wersonick Community Relations & Partnerships (505) 667-7870 Email Engage anytime, anywhere with this easy and intuitive tool! Using MobileMatch app is easy mobilematch-app Now LANL volunteers can search, sign up and track hours right on their mobile device. Get on the Volunteer

  4. Laboratory Performance Testing of Residential Window Mounted Air

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

    Conditioners | Department of Energy Laboratory Performance Testing of Residential Window Mounted Air Conditioners Laboratory Performance Testing of Residential Window Mounted Air Conditioners This presentation was delivered at the U.S. Department of Energy Building America Technical Update meeting on April 29-30, 2013, in Denver, Colorado. PDF icon testing_residential_ariconditioners_booten_winkler.pdf More Documents & Publications Key Issues High-Efficiency Window Air Conditioners -

  5. Window and Envelope Technologies Overview - 2014 BTO Peer Review |

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

    Department of Energy and Envelope Technologies Overview - 2014 BTO Peer Review Window and Envelope Technologies Overview - 2014 BTO Peer Review Presenter: Karma Sawyer, U.S. Department of Energy This presentation at the 2014 Peer Review provided an overview of the Building Technologies Office's Window and Envelope Technologies activities. Through robust feedback, the BTO Program Peer Review enhances existing efforts and improves future designs. View the Presentation PDF icon Window and

  6. Windows and Building Envelope Sub-Program Logic Model

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

    market entry & acceptance of window & building envelope product installation Improve testing & modeling capabilities, including window design tools to enable market adoption Technology pathways & research reports Improve performance & cost of near-term technologies & reduce manufacturing costs Documented low cost infiltration measurement methods Competitively funded projects to model attachments in window software tools Government, standards & industry orgs. & EE

  7. 13-Energy Efficiency Ratio Window Air Conditioner | Department of Energy

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

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

  8. Stand-alone photovoltaic (PV) powered electrochromic window

    DOE Patents [OSTI]

    Benson, D.K.; Crandall, R.S.; Deb, S.K.; Stone, J.L.

    1995-01-24

    A variable transmittance double pane window includes an electrochromic material that has been deposited on one pane of the window in conjunction with an array of photovoltaic cells deposited along an edge of the pane to produce the required electric power necessary to vary the effective transmittance of the window. A battery is placed in a parallel fashion to the array of photovoltaic cells to allow the user the ability to manually override the system when a desired transmittance is desired. 11 figures.

  9. Stand-alone photovoltaic (PV) powered electrochromic window

    DOE Patents [OSTI]

    Benson, David K.; Crandall, Richard S.; Deb, Satyendra K.; Stone, Jack L.

    1995-01-01

    A variable transmittance double pane window includes an electrochromic material that has been deposited on one pane of the window in conjunction with an array of photovoltaic cells deposited along an edge of the pane to produce the required electric power necessary to vary the effective transmittance of the window. A battery is placed in a parallel fashion to the array of photovoltaic cells to allow the user the ability to manually override the system when a desired transmittance is desired.

  10. Covered Product Category: Residential Windows, Doors, and Skylights |

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

    Department of Energy Windows, Doors, and Skylights Covered Product Category: Residential Windows, Doors, and Skylights The Federal Energy Management Program (FEMP) provides acquisition guidance for residential windows, doors, and skylights, which are an ENERGY STAR-qualified product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law. Most manufacturers display

  11. NERSC NX Service - X-Windows Acceleration at NERSC

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

    NX NERSC NX Service - X-Windows Acceleration at NERSC Introduction NX is a computer program that handles remote X Window System connections and it provides three benefits for NERSC users: SPEED: NX can greatly improve the performance of X Windows, allowing users with slow, high latency connections (e.g. on cell phone network, traveling in Africa) to use complex X Windows programs (such as rotating a plot in Matlab). SESSION: NX provides sessions that allow a user to disconnect from the session

  12. Energy-Efficient Smart Windows are Lowering Energy Costs

    Broader source: Energy.gov [DOE]

    Window innovations developed in collaboration with Lawrence Berkeley National Laboratoryare cutting energy cost for American families, businesses, institutions, and governments every year. With...

  13. Updating the Doors and Windows | Department of Energy

    Energy Savers [EERE]

    Updating the Doors and Windows Updating the Doors and Windows August 23, 2012 - 2:46pm Addthis Stephanie Price Communicator, National Renewable Energy Laboratory Since I can't afford to replace my windows like Andrea did recently (I've got a lot more of them for one thing), the next best thing is to be sure the existing ones-- which are double-paned, so that's a help-are well sealed. One of my energy audit recommendations was to caulk the window frames inside and out. My handyman friend Rob and

  14. A Tale of Three Windows: Part 2 | Department of Energy

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

    A Tale of Three Windows: Part 2 A Tale of Three Windows: Part 2 October 17, 2012 - 12:37pm Addthis Look at this gorgeous, energy-efficient, double-hung window! I requested the little locks on the side so they can’t be opened too far. | Photo courtesy of Andrea Spikes. Look at this gorgeous, energy-efficient, double-hung window! I requested the little locks on the side so they can't be opened too far. | Photo courtesy of Andrea Spikes. Andrea Spikes Former Communicator at DOE's National

  15. Highly Insulating Residential Windows Using Smart Automated Shading...

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

    Learn more Video: Architecture, Engineering, and Construction (AEC) Hackathon PDF icon 2014 BTO Peer Review Presentation - Highly Insulating Residential Windows using Smart ...

  16. Cooled window for X-rays or charged particles

    DOE Patents [OSTI]

    Logan, C.M.

    1996-04-16

    A window is disclosed that provides good structural integrity and a very high capacity for removal of the heat deposited by x-rays, electrons, or ions, with minimum attenuation of the desired beam. The window is cooled by providing microchannels therein through which a coolant is pumped. For example, the window may be made of silicon with etched microchannels therein and covered by a silicon member. A window made of silicon with a total thickness of 520 {micro}m transmits 96% of the x-rays at an energy of 60 keV, and the transmission is higher than 90% for higher energy photons. 1 fig.

  17. Cooled window for X-rays or charged particles

    DOE Patents [OSTI]

    Logan, Clinton M.

    1996-01-01

    A window that provides good structural integrity and a very high capacity for removal of the heat deposited by x-rays, electrons, or ions, with minimum attenuation of the desired beam. The window is cooled by providing microchannels therein through which a coolant is pumped. For example, the window may be made of silicon with etched microchannels therein and covered by a silicon member. A window made of silicon with a total thickness of 520 .mu.m transmits 96% of the x-rays at an energy of 60 keV, and the transmission is higher than 90% for higher energy photons.

  18. Window and Envelope Technologies Overview - 2014 BTO Peer Review...

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

    Peer Review Window and Envelope Technologies Overview - 2014 BTO Peer Review Presenter: Karma Sawyer, U.S. Department of Energy This presentation at the 2014 Peer Review provided...

  19. Window and Envelope Technologies Overview - 2014 BTO Peer Review...

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

    This presentation at the 2014 Peer Review provided an overview of the Building Technologies Office's Window and Envelope Technologies activities. Through robust feedback, the BTO ...

  20. Windows and Envelope Subprogram Overview - 2016 BTO Peer Review...

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

    This presentation at the 2016 Peer Review provided an overview of the Building Technologies Office's Windows and Envelope Subprogram. Through robust feedback, the BTO Program Peer ...

  1. Energy-Efficient Smart Windows are Lowering Energy Costs | Department...

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

    Window innovations developed in collaboration with Lawrence Berkeley National Laboratory are cutting energy cost for American families, businesses, institutions, and governments ...

  2. Highly Insulating Windows Volume Purchase Program Final Report

    SciTech Connect (OSTI)

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

    2013-02-01

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

  3. Suntuitive(tm): Sunlight-Responsive Thermochromic Window Systems...

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

    ... Provides a thermochromic interlayer that can be supplied to laminators and window manufacturers worldwide. Contact Information Curtis Liposcak (608) 216-5373 CurtisL@pleotint.com ...

  4. Ion mobility sensor system

    DOE Patents [OSTI]

    Xu, Jun; Watson, David B.; Whitten, William B.

    2013-01-22

    An ion mobility sensor system including an ion mobility spectrometer and a differential mobility spectrometer coupled to the ion mobility spectrometer. The ion mobility spectrometer has a first chamber having first end and a second end extending along a first direction, and a first electrode system that generates a constant electric field parallel to the first direction. The differential mobility spectrometer includes a second chamber having a third end and a fourth end configured such that a fluid may flow in a second direction from the third end to the fourth end, and a second electrode system that generates an asymmetric electric field within an interior of the second chamber. Additionally, the ion mobility spectrometer and the differential mobility spectrometer form an interface region. Also, the first end and the third end are positioned facing one another so that the constant electric field enters the third end and overlaps the fluid flowing in the second direction.

  5. Tandem mobile robot system

    DOE Patents [OSTI]

    Buttz, James H.; Shirey, David L.; Hayward, David R.

    2003-01-01

    A robotic vehicle system for terrain navigation mobility provides a way to climb stairs, cross crevices, and navigate across difficult terrain by coupling two or more mobile robots with a coupling device and controlling the robots cooperatively in tandem.

  6. Mobile Technology Management

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

    2014-05-15

    The order establishes requirements, assigns responsibilities, and provides guidance for federal mobile technology management and employee use of both government furnished and personally-owned mobile devices within DOE and NNSA. Establishes requirements for use of User Agreements to govern mobile devices used for official duties. Does not cancel other directives.

  7. Measure Guideline. Wood Window Repair, Rehabilitation, and Replacement

    SciTech Connect (OSTI)

    Baker, P.; Eng, P.

    2012-12-01

    This measure guideline provides information and guidance on rehabilitating, retrofitting, and replacing existing window assemblies in residential construction. The intent is to provide information regarding means and methods to improve the energy and comfort performance of existing wood window assemblies in a way that takes into consideration component durability, in-service operation, and long term performance of the strategies.

  8. Electrochromic Window Demonstration- Donna Land Port of Entry

    Broader source: Energy.gov [DOE]

    Donna Project Plan: Electrochrome Window Demonstration Measurement and Verification Report This report details the measurement and verification tools and methods used to evaluate the effectiveness of electrochromic windows at the Donna Land Port of Entry, an international border crossing between the United States and Mexico located in Texas.

  9. Radiation-transparent windows, method for imaging fluid transfers

    DOE Patents [OSTI]

    Shu, Deming; Wang, Jin

    2011-07-26

    A thin, x-ray-transparent window system for environmental chambers involving pneumatic pressures above 40 bar is presented. The window allows for x-ray access to such phenomena as fuel sprays injected into a pressurized chamber that mimics realistic internal combustion engine cylinder operating conditions.

  10. Ion mobility sensor

    DOE Patents [OSTI]

    Koo, Jackson C.; Yu, Conrad M.

    2005-08-23

    An ion mobility sensor which can detect both ion and molecules simultaneously. Thus, one can measure the relative arrival times between various ions and molecules. Different ions have different mobility in air, and the ion sensor enables measurement of ion mobility, from which one can identify the various ions and molecules. The ion mobility sensor which utilizes a pair of glow discharge devices may be designed for coupling with an existing gas chromatograph, where various gas molecules are already separated, but numbers of each kind of molecules are relatively small, and in such cases a conventional ion mobility sensor cannot be utilized.

  11. Energize Mobile | Open Energy Information

    Open Energy Info (EERE)

    Web Application Link: www.tendrilinc.comenergy-providersapplicationenergize Cost: Free Energize Mobile Screenshot References: Tendril1 Logo: Energize Mobile This...

  12. Multilayered microelectronic device package with an integral window

    DOE Patents [OSTI]

    Peterson, Kenneth A.; Watson, Robert D.

    2003-01-01

    An apparatus for packaging of microelectronic devices is disclosed, wherein the package includes an integral window. The microelectronic device can be a semiconductor chip, a CCD chip, a CMOS chip, a VCSEL chip, a laser diode, a MEMS device, or a IMEMS device. The package can comprise, for example, a cofired ceramic frame or body. The package has an internal stepped structure made of a plurality of plates, with apertures, which are patterned with metallized conductive circuit traces. The microelectronic device can be flip-chip bonded on the plate to these traces, and oriented so that the light-sensitive side is optically accessible through the window. A cover lid can be attached to the opposite side of the package. The result is a compact, low-profile package, having an integral window that can be hermetically-sealed. The package body can be formed by low-temperature cofired ceramic (LTCC) or high-temperature cofired ceramic (HTCC) multilayer processes with the window being simultaneously joined (e.g. cofired) to the package body during LTCC or HTCC processing. Multiple chips can be located within a single package, according to some embodiments. The cover lid can include a window. The apparatus is particularly suited for packaging of MEMS devices, since the number of handling steps is greatly reduced, thereby reducing the potential for contamination. The integral window can further include a lens for optically transforming light passing through the window. The package can include an array of binary optic lenslets made integral with the window. The package can include an electrically-switched optical modulator, such as a lithium niobate window attached to the package, for providing a very fast electrically-operated shutter.

  13. Buildings Energy Data Book: 5.2 Windows

    Buildings Energy Data Book [EERE]

    3 Nonresidential Window Sales, by Type and Census Region (Million Square Feet of Vision Area) (1) Northeast Midwest South West Total Type 1995 2009 1995 2009 1995 2009 1995 2009 1995 2009 New Construction Commercial Windows (2) 4 15 16 22 21 58 13 25 54 120 Curtain Wall 3 10 6 16 16 41 8 18 33 84 Store Front 7 10 11 16 14 41 11 18 43 85 Total (3) 14 36 33 53 51 140 32 60 130 289 Remodeling/Replacement Commercial Windows (2) 18 12 25 17 46 45 27 19 116 93 Curtain Wall 4 2 6 3 8 7 10 3 28 15 Store

  14. Company Rehires Unemployed Workers for Energy Efficient Window Project |

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

    Department of Energy Company Rehires Unemployed Workers for Energy Efficient Window Project Company Rehires Unemployed Workers for Energy Efficient Window Project August 20, 2010 - 12:57pm Addthis Maya Payne Smart Former Writer for Energy Empowers, EERE What are the key facts? Recovery Act grant funded $478,000 project for Kitsap County. Courthouse to save $25,000 per year with 95 new windows. Local vendor Pacific Glass rehires five workers. "Our labor force has fluctuated up and down

  15. Window Company Booming from Retrofits | Department of Energy

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

    Window Company Booming from Retrofits Window Company Booming from Retrofits October 30, 2009 - 12:09pm Addthis Joshua DeLung Don't try telling John Haddon's family that Friday the 13th is unlucky. They have more reason to believe in divine intervention than luck. After buying Accu-Weld Feb. 13, 2009 - a windows and doors company that laid off 70 employees in 2008 - the business is doing great, thanks to the family's commitment to energy efficiency and the Recovery Act, signed into law just four

  16. Effect of window reflections on photonic Doppler velocimetry measurements

    SciTech Connect (OSTI)

    Ao, T.; Dolan, D. H.

    2011-02-15

    Photonic Doppler velocimetry (PDV) has rapidly become a standard diagnostic for measuring velocities in dynamic compression research. While free surface velocity measurements are fairly straightforward, complications occur when PDV is used to measure a dynamically loaded sample through a window. Fresnel reflections can severely affect the velocity and time resolution of PDV measurements, especially for low-velocity transients. Shock experiments of quartz compressed between two sapphire plates demonstrate how optical window reflections cause ringing in the extracted PDV velocity profile. Velocity ringing is significantly reduced by using either a wedge window or an antireflective coating.

  17. A HIGH-POWER L-BAND RF WINDOW

    SciTech Connect (OSTI)

    R. RIMMER; G. KOEHLER; ET AL

    2001-05-01

    This paper discusses the design, fabrication and testing of a high power alumina disk window in WR1500 waveguide at L Band, suitable for use in the NLC damping ring RF cavities at 714 MHz and the LEDA Accelerator at 700 MHz. The design is based on the fabrication methods used for the successful PEP-II cavity windows. Four prototype windows at 700 MHz have been produced by LBNL for testing at LANL. The RF design and simulation using MAFIA, laboratory cold test measurements, fabrication methods and preliminary high power test results are discussed.

  18. Fighting with South-Facing Windows | Department of Energy

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

    Fighting with South-Facing Windows Fighting with South-Facing Windows June 13, 2011 - 3:20pm Addthis Elizabeth Spencer Communicator, National Renewable Energy Laboratory You know, back when it was cold out (and, this being Colorado, that was last month), my south-facing windows were awesome. They let in tons of light and kept the entire place snug and warm. I barely even needed to break out the blankets! But Colorado's weather likes to mess with you, so it recently decided that it was done with

  19. Ultra high vacuum broad band high power microwave window

    DOE Patents [OSTI]

    Nguyen-Tuong, Viet; Dylla, III, Henry Frederick

    1997-01-01

    An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost.

  20. Ultra high vacuum broad band high power microwave window

    DOE Patents [OSTI]

    Nguyen-Tuong, V.; Dylla, H.F. III

    1997-11-04

    An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost. 5 figs.

  1. Infrared Emissivity of Tin upon Release of a 25 GPa Shock into a LiF Window

    SciTech Connect (OSTI)

    Turley, W. D., Holtkamp, D. B., Marshall, B. R., Stevens, G. D., Veeser, L. R.

    2011-11-01

    We measured the emissivity of a tin sample at its interface with a lithium-fluoride window upon release of a 25 GPa shock wave from the tin into the window. Measurements were made over four wavelength bands between 1.2 and 5.4 μm. Thermal emission backgrounds from the tin, glue, and lithium fluoride were successfully removed from the reflectance signals. Emissivity changes for the sample, which was initially nearly specular, were small except for the longest wavelength band, where uncertainties were high because of poor signal-to-noise ratio at that wavelength. A thin glue layer, which bonds the sample to the window, was found to heat from reverberations of the shock wave between the tin and the lithium fluoride. At approximately 3.4 μm the thermal emission from the glue was large compared to the tin, allowing a good estimate of the glue temperature from the thermal radiance. The glue appears to remain slightly colder than the tin, thereby minimizing heat conduction into or out of the tin immediately after the shock passage.

  2. Heavy Mobile Equipment Mechanic

    Broader source: Energy.gov [DOE]

    Join the Bonneville Power Administration (BPA) for a challenging and rewarding career, while working, living, and playing in the Pacific Northwest. The Heavy Mobile Equipment Mechanic (HMEM)...

  3. ARM Mobile Facilities

    SciTech Connect (OSTI)

    Orr, Brad; Coulter, Rich

    2010-12-13

    This video provides an overview of the ARM Mobile Facilities, two portable climate laboratories that can deploy anywhere in the world for campaigns of at least six months.

  4. ARM Mobile Facilities

    ScienceCinema (OSTI)

    Orr, Brad; Coulter, Rich

    2014-09-15

    This video provides an overview of the ARM Mobile Facilities, two portable climate laboratories that can deploy anywhere in the world for campaigns of at least six months.

  5. Mobile Technology Management

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

    2013-11-21

    The directive will ensure that federal organizations and employees within the Department can use mobile technology to support mission requirements in a safe and secure manner.

  6. Residential Lighting Usage Estimate Tool, v1.0, Windows version...

    Energy Savers [EERE]

    Windows version Residential Lighting Usage Estimate Tool, v1.0, Windows version Windows version of the Residential Lighting Usage Estimate Tool, v1.0. Spreadsheet More Documents &...

  7. ARPA-E Announces $30 Million in Funding for Window Efficiency...

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

    to retrofit existing single-pane windows. "At ARPA-E, we invest in technology ... materials to insulate existing windows in cases where window replacement isn't feasible." ...

  8. A Design Guide for Early-Market Electrochromic Windows

    SciTech Connect (OSTI)

    Lee, Eleanor S.; Selkowitz, Stephen E.; Clear, Robert D.; DiBartolomeo, Dennis L.; Klems, Joseph H.; Fernandes, Luis L.; Ward, GregJ.; Inkarojrit, Vorapat; Yazdanian, Mehry

    2006-05-01

    Switchable variable-tint electrochromic (EC) windows preserve view out while modulating transmitted light, glare, and solar heat gains. Consumers will require objective information on the risks and benefits of this emerging technology as it enters the market in 2006. This guide provides such information and data derived from a wide variety of simulations, laboratory tests, and a 2.5-year field test of prototype large-area EC windows evaluated under outdoor sun and sky conditions. This design guide is provided to architects, engineers, building owners, and others interested in electrochromic windows. The design guide provides basic information about what is an electrochromic window, what it looks like, how fast does it switch, and what current product offerings are. The guide also provides information on performance benefits if more mature product offerings were available.

  9. Energy Performance Ratings for Windows, Doors, and Skylights...

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

    the rate of air movement around a window, door, or skylight in the presence of a specific pressure difference across it. It's expressed in units of cubic feet per minute per square...

  10. Improving the Energy Efficiency of Existing Windows | Department...

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

    ... material encased inside a wooden or metal frame that seals tightly against the ... windows, on the other hand, are typically composed of a thin but durable sheet of plastic. ...

  11. Multilayered Microelectronic Device Package With An Integral Window

    DOE Patents [OSTI]

    Peterson, Kenneth A.; Watson, Robert D.

    2004-10-26

    A microelectronic package with an integral window mounted in a recessed lip for housing a microelectronic device. The device can be a semiconductor chip, a CCD chip, a CMOS chip, a VCSEL chip, a laser diode, a MEMS device, or a IMEMS device. The package can be formed of a low temperature co-fired ceramic (LTCC) or high temperature cofired ceramic (HTCC) multilayered material, with the integral window being simultaneously joined (e.g. co-fired) to the package body during LTCC or HTCC processing. The microelectronic device can be flip-chip bonded and oriented so that a light-sensitive side is optically accessible through the window. The result is a compact, low profile package, having an integral window mounted in a recessed lip, that can be hermetically sealed.

  12. Repairing Windows & Doors: How To's for the Handy Homeowner

    SciTech Connect (OSTI)

    2006-01-05

    This brochure contains tips for homeowners to repair windows and doors in their home that sustained hurricane damage. This publication is a part of the How To's for the Handy Homeowner Series.

  13. Sealed symmetric multilayered microelectronic device package with integral windows

    DOE Patents [OSTI]

    Peterson, Kenneth A.; Watson, Robert D.

    2002-01-01

    A sealed symmetric multilayered package with integral windows for housing one or more microelectronic devices. The devices can be a semiconductor chip, a CCD chip, a CMOS chip, a VCSEL chip, a laser diode, a MEMS device, or a IMEMS device. The multilayered package can be formed of a low-temperature cofired ceramic (LTCC) or high-temperature cofired ceramic (HTCC) multilayer processes with the windows being simultaneously joined (e.g. cofired) to the package body during LTCC or HTCC processing. The microelectronic devices can be flip-chip bonded and oriented so that the light-sensitive sides are optically accessible through the windows. The result is a compact, low-profile, sealed symmetric package, having integral windows that can be hermetically-sealed.

  14. Low Cost Nanostructured Smart Window Coatings | Department of Energy

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

    Low Cost Nanostructured Smart Window Coatings Low Cost Nanostructured Smart Window Coatings Addthis 1 of 3 A Heliotrope scientist prepares slot die coater for solution based deposition of electrochromic layer. Image: Heliotrope Technologies 2 of 3 A Heliotrope scientist investigates the coating quality of a slot die deposition of electrochromic layer. Image: Heliotrope Technologies 3 of 3 A Heliotrope scientist investigates the spray coater for a solution based deposition of electrochromic

  15. A generalized window energy rating system for typical office buildings

    SciTech Connect (OSTI)

    Tian, Cheng; Chen, Tingyao; Yang, Hongxing; Chung, Tse-ming

    2010-07-15

    Detailed computer simulation programs require lengthy inputs, and cannot directly provide an insight to relationship between the window energy performance and the key window design parameters. Hence, several window energy rating systems (WERS) for residential houses and small buildings have been developed in different countries. Many studies showed that utilization of daylight through elaborate design and operation of windows leads to significant energy savings in both cooling and lighting in office buildings. However, the current WERSs do not consider daylighting effect, while most of daylighting analyses do not take into account the influence of convective and infiltration heat gains. Therefore, a generalized WERS for typical office buildings has been presented, which takes all primary influence factors into account. The model includes embodied and operation energy uses and savings by a window to fully reflect interactions among the influence parameters. Reference locations selected for artificial lighting and glare control in the current common simulation practice may cause uncompromised conflicts, which could result in over- or under-estimated energy performance. Widely used computer programs, DOE2 and ADELINE, for hourly daylighting and cooling simulations have their own weaknesses, which may result in unrealistic or inaccurate results. An approach is also presented for taking the advantages of the both programs and avoiding their weaknesses. The model and approach have been applied to a typical office building of Hong Kong as an example to demonstrate how a WERS in a particular location can be established and how well the model can work. The energy effect of window properties, window-to-wall ratio (WWR), building orientation and lighting control strategies have been analyzed, and can be indicated by the localized WERS. An application example also demonstrates that the algebraic WERS derived from simulation results can be easily used for the optimal design of windows in buildings similar to the typical buildings. (author)

  16. Analysis of cavity and window for THz gyrotron

    SciTech Connect (OSTI)

    Alaria, Mukesh Kumar; Mukherjee, P.; Rao, R.R.; Sinha, A.K. E-mail: aksinha@ceeri.ernet.in

    2011-07-01

    In this paper study of cavity and window has been carried out using Ansoft HFSS for Terahertz Gyrotron. Eigen mode analysis of the cavity has been carried out at 1 THz. An idea about the operating modes in the cavity of the Gyrotron and obtained the simulated Eigen frequency and field pattern of the modes. The design of window for 1 THz Gyrotron has also been carried out using HFSS. The simulated results have also been compared with ST microwave studio. (author)

  17. Turning Windows into Solar Panels | Department of Energy

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

    Windows into Solar Panels Turning Windows into Solar Panels March 7, 2016 - 3:23pm Addthis UV light shines through a sample of transparent material containing quantum dots, tiny nanoparticles that can be used to harness solar energy for electricity. | Photo courtesy of LANL. UV light shines through a sample of transparent material containing quantum dots, tiny nanoparticles that can be used to harness solar energy for electricity. | Photo courtesy of LANL. Victor Klimov Los Alamos National

  18. Low Cost Nanostructured Smart Window Coatings | Department of Energy

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

    Nanostructured Smart Window Coatings Low Cost Nanostructured Smart Window Coatings 1 of 3 A Heliotrope scientist prepares slot die coater for solution based deposition of electrochromic layer. Image: Heliotrope Technologies 2 of 3 A Heliotrope scientist investigates the coating quality of a slot die deposition of electrochromic layer. Image: Heliotrope Technologies 3 of 3 A Heliotrope scientist investigates the spray coater for a solution based deposition of electrochromic layer. Image:

  19. Radiometer Calibration and Characterization (RCC) User's Manual: Windows

    Office of Scientific and Technical Information (OSTI)

    Version 4.0 (Technical Report) | SciTech Connect Technical Report: Radiometer Calibration and Characterization (RCC) User's Manual: Windows Version 4.0 Citation Details In-Document Search Title: Radiometer Calibration and Characterization (RCC) User's Manual: Windows Version 4.0 The Radiometer Calibration and Characterization (RCC) software is a data acquisition and data archival system for performing Broadband Outdoor Radiometer Calibrations (BORCAL). RCC provides a unique method of

  20. Separation of High Order Harmonics with Fluoride Windows

    SciTech Connect (OSTI)

    Allison, Tom; van Tilborg, Jeroen; Wright, Travis; Hertlein, Marcus; Falcone, Roger; Belkacem, Ali

    2010-08-02

    The lower orders produced in high order harmonic generation can be effciently temporally separated into monochromatic pulses by propagation in a Fluoride window while still preserving their femtosecond pulse duration. We present calculations for MgF2, CaF2, and LiF windows for the third, fifth, and seventh harmonics of 800 nm. We demonstrate the use of this simple and inexpensive technique in a femtosecond pump/probe experiment using the fifth harmonic.

  1. Application of Standard Maintenance Windows in PHWR Outage

    SciTech Connect (OSTI)

    Fuming Jiang [Third Qinshan Nuclear Power Company, Ltd. (China)

    2006-07-01

    The concept of Standard Maintenance Windows has been widely used in the planned outage of light water reactor in the world. However, due to the specific feature of Pressurized Heavy Water Reactor (PHWR), it has not come to a consensus for the PHWR owners to adopt Standard Maintenance Windows for planned outage aiming at the optimization of outage duration. Third Qinshan Nuclear Power Company (TQNPC), with their experience gained in the previous outages and with reference to other PHWR power plants, has identified a set of Standard Maintenance Windows for planned outage. It can be applied to similar PHWR plants and with a few windows that are specific to Qinshan Phase III NPP. The use of these Standard Maintenance Windows in planned outage has been proved to be effective in control shutdown nuclear safety, minimize the unavailability of safety system, improve the efficient utilization of outage duration, and improved the flexibility of outage schedule in the case of emergency issue, which forced the revision of outage schedule. It has also formed a solid foundation for benchmarking. The identification of Standard Maintenance Windows and its application will be discussed with relevant cases for the common improvement of outage duration. (author)

  2. T-727:Microsoft Windows SSL/TLS Protocol Flaw Lets Remote Users Decryption

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

    Sessions | Department of Energy 7:Microsoft Windows SSL/TLS Protocol Flaw Lets Remote Users Decryption Sessions T-727:Microsoft Windows SSL/TLS Protocol Flaw Lets Remote Users Decryption Sessions September 27, 2011 - 8:00am Addthis PROBLEM: Microsoft Windows SSL/TLS Protocol Flaw Lets Remote Users Decryption Sessions. PLATFORM: Windows XP Service Pack 3 Windows XP Professional x64 Edition Service Pack 2 Windows Server 2003 Service Pack 2 Windows Server 2003 x64 Edition Service Pack 2 Windows

  3. Microsoft PowerPoint - Window_Attachments-Webinar-Oct_28_2015...

    Energy Savers [EERE]

    Building America Energy Savings from Window Attachments: Please Mind the Gap Moderator: ... an economist with PNNL and team lead of Building America's Window Attachments Program. Ms. ...

  4. EERE Success Story-Pennsylvania: New Series of Windows Has Potential...

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

    New Series of Windows Has Potential to Save Energy for Commercial Buildings EERE Success Story-Pennsylvania: New Series of Windows Has Potential to Save Energy for Commercial ...

  5. A Homeowners Guide to Window Air Conditioner Installation for...

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

    Window air conditioners (ACs) are an inexpensive alternative to central systems, and are ... The study showed that window AC installation resulted in signifcant air ...

  6. NREL: Transportation Research - Light-Duty Vehicle Thermal Management

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

    Light-Duty Vehicle Thermal Management Image of a semi-transparent car with parts of the engine highlighted in green. NREL evaluates technologies and methods such as advanced window glazing, cooling heat-pipe systems, parked car ventilation, and direct energy recovery. Illustration by Josh Bauer, NREL National Renewable Energy Laboratory (NREL) researchers are focused on improving the thermal efficiency of light-duty vehicles (LDVs) while maintaining the thermal comfort that drivers expect.

  7. Thermal performance of complex fenestration systems

    SciTech Connect (OSTI)

    Carpenter, S.C.; Elmahdy, A.H.

    1994-12-31

    The thermal performance (i.e., U-factor) of four complex fenestration systems is examined using computer simulation tools and guarded hot box testing. The systems include a flat glazed skylight, a domed or bubble skylight, a greenhouse window, and a curtain wall. The extra care required in performing simulation and testing of these complex products is described. There was good agreement (within 10%) between test and simulation for two of the four products. The agreement was slightly poorer (maximum difference of 16%) for the two high-heat-transfer products: the domed skylight and the greenhouse window. Possible causes for the larger discrepancy in these projecting window products are uncertainties in the inside and outside film coefficients and lower warm-side air temperatures because of stagnant airflow.

  8. Highly Insulating R-5 Windows Volume Purchase - How Utilities Can Participate Fact Sheet

    SciTech Connect (OSTI)

    2010-03-01

    This fact sheet describes DOEs Windows Volume Purchase, the benefits of highly insulated R-5 windows and low-e storm windows, and the important role that utilities can play in expanding the market for these highly insulated windows.

  9. Fuel reactivity effects on the efficiency and operational window of dual-fuel compression ignition engines

    SciTech Connect (OSTI)

    Splitter, Derek A; Reitz, Rolf

    2014-01-01

    Fuel reactivity effects on the efficiency and operational window of dual-fuel compression ignition engines

  10. Method of making an integral window hermetic fiber optic component

    DOE Patents [OSTI]

    Dalton, Rick D.; Kramer, Daniel P.; Massey, Richard T.; Waker, Damon A.

    1996-11-12

    In the fabrication of igniters, actuators, detonators, and other pyrotechnic devices to be activated by a laser beam, an integral optical glass window is formed by placing a preform in the structural member of the device and then melting the glass and sealing it in place by heating at a temperature between the ceramming temperature of the glass and the melting point of the metal, followed by rapid furnace cooling to avoid devitrification. No other sealing material is needed to achieve hermeticity. A preferred embodiment of this type of device is fabricated by allowing the molten glass to flow further and form a plano-convex lens integral with and at the bottom of the window. The lens functions to decrease the beam divergence caused by refraction of the laser light passing through the window when the device is fired by means of a laser beam.

  11. Analysis of Environmentally Friendly Refrigerant Options for Window Air Conditioners

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

    Bansal, Pradeep; Shen, Bo

    2015-03-12

    This paper presents a technical assessment of environmentally friendly refrigerants as alternatives to R410A for window air conditioners. The alternative refrigerants that are studied for its replacement include R32, a mixture of R32/R125 with 90%/10% molar concentration, R600a, R290, R1234yf, R1234ze and R134a. Baseline experiments were performed on a window unit charged with R410A. The heat pump design model (HPDM) was modified and calibrated with the baseline data and was used to evaluate the comparative performance of the WAC with alternative refrigerants. The paper discusses the advantages and disadvantages of each refrigerants and their suitability for window air conditioners. Amongmore » all the refrigerants studied, R32 offers the best efficiency and the lowest Global Warming Potential (GWP), and hence its use will result in the overall environmental friendliness.« less

  12. Analysis of Environmentally Friendly Refrigerant Options for Window Air Conditioners

    SciTech Connect (OSTI)

    Bansal, Pradeep; Shen, Bo

    2015-01-01

    This paper presents a technical assessment of environmentally friendly refrigerants as alternatives to R410A for window air conditioners. The alternative refrigerants that are studied for its replacement include R32, a mixture of R32/R125 with 90%/10% molar concentration, R600a, R290, R1234yf, R1234ze and R134a. Baseline experiments were performed on a window unit charged with R410A. The heat pump design model (HPDM) was modified and calibrated with the baseline data and was used to evaluate the comparative performance of the WAC with alternative refrigerants. The paper discusses the advantages and disadvantages of each refrigerants and their suitability for window air conditioners. Among all the refrigerants studied, R32 offers the best efficiency and the lowest Global Warming Potential (GWP), and hence its use will result in the overall environmental friendliness.

  13. Assessment of Environmentally Friendly Refrigerants for Window Air Conditioners

    SciTech Connect (OSTI)

    Bansal, Pradeep; Shen, Bo

    2014-01-01

    This paper presents technical assessment of environmentally friendly refrigerants for window air conditioners that currently use refrigerant R410A for residential and commercial applications. The alternative refrigerants that are studied for its replacement include R32, R600a, R290, R1234yf, R1234ze and a mixture of R32 (90% molar concentration) and R125 (10% molar concentration). Baseline experiments were performed on a window unit charged with R410A. The ORNL Heat Pump Design Model was calibrated with the baseline data and was used to assess the comparative performance of the WAC with alternative refrigerants. The paper discusses the advantages and disadvantages of each refrigerants and their suitability for window air conditioners.

  14. Method of making an integral window hermetic fiber optic component

    DOE Patents [OSTI]

    Dalton, R.D.; Kramer, D.P.; Massey, R.T.; Waker, D.A.

    1996-11-12

    In the fabrication of igniters, actuators, detonators, and other pyrotechnic devices to be activated by a laser beam, an integral optical glass window is formed by placing a preform in the structural member of the device and then melting the glass and sealing it in place by heating at a temperature between the ceramming temperature of the glass and the melting point of the metal, followed by rapid furnace cooling to avoid devitrification. No other sealing material is needed to achieve hermeticity. A preferred embodiment of this type of device is fabricated by allowing the molten glass to flow further and form a plano-convex lens integral with and at the bottom of the window. The lens functions to decrease the beam divergence caused by refraction of the laser light passing through the window when the device is fired by means of a laser beam. 9 figs.

  15. Analysis of Environmentally Friendly Refrigerant Options for Window Air Conditioners

    SciTech Connect (OSTI)

    Bansal, Pradeep; Shen, Bo

    2015-03-12

    This paper presents a technical assessment of environmentally friendly refrigerants as alternatives to R410A for window air conditioners. The alternative refrigerants that are studied for its replacement include R32, a mixture of R32/R125 with 90%/10% molar concentration, R600a, R290, R1234yf, R1234ze and R134a. Baseline experiments were performed on a window unit charged with R410A. The heat pump design model (HPDM) was modified and calibrated with the baseline data and was used to evaluate the comparative performance of the WAC with alternative refrigerants. The paper discusses the advantages and disadvantages of each refrigerants and their suitability for window air conditioners. Among all the refrigerants studied, R32 offers the best efficiency and the lowest Global Warming Potential (GWP), and hence its use will result in the overall environmental friendliness.

  16. AMF ARM Mobile FAcility

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

    ARM Mobile FAcility Details on the AMF proposal process can be found at http://www.arm.gov/acrf/submit_proposals.stm. For more information, contact: Mark Miller Mary Jane Bartholomew AMF Site Scientist Assoc. Site Scientist (631) 344-2958 (631) 344-2444 miller@bnl.gov bartholomew@bnl.gov baseline capabilities Measurement capabilities include the standard meteor- ological instrumentation, broadband and spectral radi- ometer suite, and remote sensing instruments. The ARM Mobile Facility (AMF) can

  17. Buildings Energy Data Book: 5.2 Windows

    Buildings Energy Data Book [EERE]

    6 2005 Residential Prime Window Stock (Million Households) Double Pane Census Division New England 5.3 Middle Atlantic 15.0 East North Central 17.3 West North Central 7.7 South Atlantic 21.3 East South Central 6.8 West South Central 12.1 Mountain 7.3 Pacific 16.4 United States 109.2 Selected States New York 7.0 Florida 6.7 Texas 7.6 California 12.0 Note(s): Source(s): 1) Respondents were shown pictures of different types of window glass and were asked "Which picture best describes the type

  18. Buildings Energy Data Book: 5.2 Windows

    Buildings Energy Data Book [EERE]

    7 Nonresidential Window Stock and Sales, by Glass Type Existing U.S. Stock Vision Area of New Windows (Million Square Feet) Type (% of buildings) 1995 2001 2003 2005 2007 2009 Single Pane 56 57 48 56 60 48 Insulating Glass (1) 294 415 373 407 476 389 Total 350 472 421 463 536 437 Clear 36% 49% 43% 44% 38% 33% Tinted 40% 24% 17% 15% 11% 10% Reflective 7% 8% 6% 4% 3% 3% Low-e 17% 19% 34% 37% 48% 54% Total 100% 100% 100% 100% 100% 100% 100% Note(s): Source(s): (2) 1) Includes double- and

  19. Application issues for large-area electrochromic windows incommercial buildings

    SciTech Connect (OSTI)

    Lee, Eleanor S.; DiBartolomeo, D.L.

    2000-05-01

    Projections of performance from small-area devices to large-area windows and enterprise marketing have created high expectations for electrochromic glazings. As a result, this paper seeks to precipitate an objective dialog between material scientists and building-application scientists to determine whether actual large-area electrochromic devices will result in significant performance benefits and what material improvements are needed, if any, to make electrochromics more practical for commercial building applications. Few in-situ tests have been conducted with large-area electrochromic windows applied in buildings. This study presents monitored results from a full-scale field test of large-area electrochromic windows to illustrate how this technology will perform in commercial buildings. The visible transmittance (Tv) of the installed electrochromic ranged from 0.11 to 0.38. The data are limited to the winter period for a south-east-facing window. The effect of actual device performance on lighting energy use, direct sun control, discomfort glare, and interior illumination is discussed. No mechanical system loads were monitored. These data demonstrate the use of electrochromics in a moderate climate and focus on the most restrictive visual task: computer use in offices. Through this small demonstration, we were able to determine that electrochromic windows can indeed provide unmitigated transparent views and a level of dynamic illumination control never before seen in architectural glazing materials. Daily lighting energy use was 6-24 percent less compared to the 11 percent-glazing, with improved interior brightness levels. Daily lighting energy use was 3 percent less to 13 percent more compared to the 38 percent-glazing, with improved window brightness control. The electrochromic window may not be able to fulfill both energy-efficiency and visual comfort objectives when low winter direct sun is present, particularly for computer tasks using cathode-ray tube (CRT) displays. However, window and architectural design as well as electrochromic control options are suggested as methods to broaden the applicability of electrochromics for commercial buildings. Without further modification, its applicability is expected to be limited during cold winter periods due to its slow switching speed.

  20. Optimized ECR plasma apparatus with varied microwave window thickness

    DOE Patents [OSTI]

    Berry, L.A.

    1995-11-14

    The present invention describes a technique to control the radial profile of microwave power in an ECR plasma discharge. In order to provide for a uniform plasma density to a specimen, uniform energy absorption by the plasma is desired. By controlling the radial profile of the microwave power transmitted through the microwave window of a reactor, the profile of the transmitted energy to the plasma can be controlled in order to have uniform energy absorption by the plasma. An advantage of controlling the profile using the window transmission characteristics is that variations to the radial profile of microwave power can be made without changing the microwave coupler or reactor design. 9 figs.

  1. Optimized ECR plasma apparatus with varied microwave window thickness

    DOE Patents [OSTI]

    Berry, Lee A.

    1995-01-01

    The present invention describes a technique to control the radial profile of microwave power in an ECR plasma discharge. In order to provide for a uniform plasma density to a specimen, uniform energy absorption by the plasma is desired. By controlling the radial profile of the microwave power transmitted through the microwave window of a reactor, the profile of the transmitted energy to the plasma can be controlled in order to have uniform energy absorption by the plasma. An advantage of controlling the profile using the window transmission characteristics is that variations to the radial profile of microwave power can be made without changing the microwave coupler or reactor design.

  2. High-power RF window and coupler development for the PEP-II B Factory

    SciTech Connect (OSTI)

    Neubauer, M.; Fant, K.; Hodgson, J.; Judkins, J.; Schwarz, H.; Rimmer, R.A.

    1995-05-01

    We describe the fabrication and testing of the RF windows designed to transmit power to the PEP-II 476 MHz cavities. Design choices to maximize the reliability of the window are discussed. Fabrication technologies for the window are described and finite-element analysis of the assembly process is presented. Conditioning and high-power testing of the window are discussed. Design of the coupler assembly including the integration of the window and other components is reported.

  3. Thermal Sciences

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

    Thermal Sciences NETL's Thermal Sciences competency provides the scientific, engineering, and technology development community with innovative and efficient approaches to measure, harness, and convert thermal energy. Research includes sensors, advanced energy concepts, and thermodynamic optimization, specifically: Sensors and Diagnostics Advanced sensor and diagnostic technology to develop and evaluate advanced methods for non-intrusive measurement and measurement in extreme environments.

  4. Angular selective window systems: Assessment of technical potential for energy savings

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

    Fernandes, Luis L.; Lee, Eleanor S.; McNeil, Andrew; Jonsson, Jacob C.; Nouidui, Thierry; Pang, Xiufeng; Hoffmann, Sabine

    2014-10-16

    Static angular selective shading systems block direct sunlight and admit daylight within a specific range of incident solar angles. The objective of this study is to quantify their potential to reduce energy use and peak demand in commercial buildings using state-of-the art whole-building computer simulation software that allows accurate modeling of the behavior of optically-complex fenestration systems such as angular selective systems. Three commercial systems were evaluated: a micro-perforated screen, a tubular shading structure, and an expanded metal mesh. This evaluation was performed through computer simulation for multiple climates (Chicago, Illinois and Houston, Texas), window-to-wall ratios (0.15-0.60), building codes (ASHRAEmore » 90.1-2004 and 2010) and lighting control configurations (with and without). The modeling of the optical complexity of the systems took advantage of the development of state-of-the-art versions of the EnergyPlus, Radiance and Window simulation tools. Results show significant reductions in perimeter zone energy use; the best system reached 28% and 47% savings, respectively without and with daylighting controls (ASHRAE 90.1-2004, south facade, Chicago,WWR=0.45). As a result, angular selectivity and thermal conductance of the angle-selective layer, as well as spectral selectivity of low-emissivity coatings, were identified as factors with significant impact on performance.« less

  5. Angular selective window systems: Assessment of technical potential for energy savings

    SciTech Connect (OSTI)

    Fernandes, Luis L.; Lee, Eleanor S.; McNeil, Andrew; Jonsson, Jacob C.; Nouidui, Thierry; Pang, Xiufeng; Hoffmann, Sabine

    2014-10-16

    Static angular selective shading systems block direct sunlight and admit daylight within a specific range of incident solar angles. The objective of this study is to quantify their potential to reduce energy use and peak demand in commercial buildings using state-of-the art whole-building computer simulation software that allows accurate modeling of the behavior of optically-complex fenestration systems such as angular selective systems. Three commercial systems were evaluated: a micro-perforated screen, a tubular shading structure, and an expanded metal mesh. This evaluation was performed through computer simulation for multiple climates (Chicago, Illinois and Houston, Texas), window-to-wall ratios (0.15-0.60), building codes (ASHRAE 90.1-2004 and 2010) and lighting control configurations (with and without). The modeling of the optical complexity of the systems took advantage of the development of state-of-the-art versions of the EnergyPlus, Radiance and Window simulation tools. Results show significant reductions in perimeter zone energy use; the best system reached 28% and 47% savings, respectively without and with daylighting controls (ASHRAE 90.1-2004, south facade, Chicago,WWR=0.45). As a result, angular selectivity and thermal conductance of the angle-selective layer, as well as spectral selectivity of low-emissivity coatings, were identified as factors with significant impact on performance.

  6. Carbon Smackdown: Smart Windows (LBNL Summer Lecture Series)

    SciTech Connect (OSTI)

    Milliron, Delia; Selkowitz, Stephen

    2010-08-05

    August 3, 2010 Berkeley Lab talk: In the fourth of five Carbon Smackdown matches, Berkeley Lab researchers Delia Milliron of the Materials Sciences Division and Stephen Selkowitz of the Environmental Energy Technologies Division talk about their work on energy-saving smart windows.

  7. Covered Product Category: Residential Windows, Doors, and Skylights

    Broader source: Energy.gov [DOE]

    FEMP provides acquisition guidance across a variety of product categories, including residential windows, doors, and skylights, which are an ENERGY STAR-qualified product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

  8. Drafty Windows: Is it Better to Insulate or Replace Them?

    Broader source: Energy.gov [DOE]

    I’ve lived in my condominium for several years, and though it naturally stays cooler in the summer (with all west-facing windows) I struggle to keep it warm in the winter without taking out a loan to pay utilities

  9. Laboratory Performance Testing of Residential Window Air Conditioners

    SciTech Connect (OSTI)

    Winkler, J.; Booten, C.; Christensen, D.; Tomerlin, J.

    2013-03-01

    Window air conditioners are the dominant cooling product for residences, in terms of annual unit sales. They are inexpensive, portable and can be installed by the owner. For this reason, they are an attractive solution for supplemental cooling, for retrofitting air conditioning into a home which lacks ductwork, and for renters. Window air conditioners for sale in the United States are required to meet very modest minimum efficiency standards. Four window air conditioners' performance were tested in the Advanced HVAC Systems Laboratory on NREL's campus in Golden, CO. In order to separate and study the refrigerant system's performance, the unit's internal leakage pathways, the unit's fanforced ventilation, and the leakage around the unit resulting from installation in a window, a series of tests were devised that focused on each aspect of the unit's performance. These tests were designed to develop a detailed performance map to determine whole-house performance in different climates. Even though the test regimen deviated thoroughly from the industry-standard ratings test, the results permit simple calculation of an estimated rating for both capacity and efficiency that would result from a standard ratings test. Using this calculation method, it was found that the three new air conditioners' measured performance was consistent with their ratings. This method also permits calculation of equivalent SEER for the test articles. Performance datasets were developed across a broad range of indoor and outdoor operating conditions, and used them to generate performance maps.

  10. Carbon Smackdown: Smart Windows (LBNL Summer Lecture Series)

    ScienceCinema (OSTI)

    Milliron, Delia; Selkowitz, Stephen

    2010-09-01

    August 3, 2010 Berkeley Lab talk: In the fourth of five Carbon Smackdown matches, Berkeley Lab researchers Delia Milliron of the Materials Sciences Division and Stephen Selkowitz of the Environmental Energy Technologies Division talk about their work on energy-saving smart windows.

  11. T-547: Microsoft Windows Human Interface Device (HID) Vulnerability

    Broader source: Energy.gov [DOE]

    Microsoft Windows does not properly warn the user before enabling additional Human Interface Device (HID) functionality over USB, which allows user-assisted attackers to execute arbitrary programs via crafted USB data, as demonstrated by keyboard and mouse data sent by malware on a Smartphone that the user connected to the computer.

  12. Electron Bernstein wave heating and emission measurement through the very narrow O-X-B mode conversion window in the LHD

    SciTech Connect (OSTI)

    Igami, H.; Shimozuma, T.; Yoshimura, Y.; Takahashi, H.; Nishiura, M.; Seki, T.; Osakabe, M.; Mutoh, T.; Kubo, S.; Ogasawara, S.; Makino, R.; Idei, H.; Nagasaki, K.

    2014-02-12

    In the large helical device (LHD), the theoretically predicted width of the ordinary-extraordinary-electron Bernstein wave (O-X-B) mode conversion (MC) window is comparable to the beam width and the power deposition is located in the off-axis region if the 77GHz fundamental electron cyclotron (EC) wave of is launched from an existing horizontal port antenna. In the experiment, the actual MC window location was looked for with changing the aiming. The effective aiming with that the increase of the stored energy was observed was two degrees apart from the location of the theoretical MC window at a maximum. Measurement of the waves originated from the thermally emitted EBW and radiated via the B-X-O mode conversion process is effective to improve the accuracy of the theoretical prediction with comparison between the theoretical and the experimental results. The theoretical prediction suggests that the width of the MC window of the fundamental 77GHz EC wave can be expanded if the lower port antenna is used. On the other hand, the MC window of the second harmonic 154GHz EC wave is blocked by horizontal port wall if another horizontal port antenna is used. It is required to move the final mirror of the quasi-optical antenna toward the plasma surface. Focusing of the beam at the plasma cutoff is (PC) also necessary for the effective mode conversion.

  13. Correlation ion mobility spectroscopy

    DOE Patents [OSTI]

    Pfeifer, Kent B.; Rohde, Steven B.

    2008-08-26

    Correlation ion mobility spectrometry (CIMS) uses gating modulation and correlation signal processing to improve IMS instrument performance. Closely spaced ion peaks can be resolved by adding discriminating codes to the gate and matched filtering for the received ion current signal, thereby improving sensitivity and resolution of an ion mobility spectrometer. CIMS can be used to improve the signal-to-noise ratio even for transient chemical samples. CIMS is especially advantageous for small geometry IMS drift tubes that can otherwise have poor resolution due to their small size.

  14. Mobile lighting apparatus

    DOE Patents [OSTI]

    Roe, George Michael; Klebanoff, Leonard Elliott; Rea, Gerald W; Drake, Robert A; Johnson, Terry A; Wingert, Steven John; Damberger, Thomas A; Skradski, Thomas J; Radley, Christopher James; Oros, James M; Schuttinger, Paul G; Grupp, David J; Prey, Stephen Carl

    2013-05-14

    A mobile lighting apparatus includes a portable frame such as a moveable trailer or skid having a light tower thereon. The light tower is moveable from a stowed position to a deployed position. A hydrogen-powered fuel cell is located on the portable frame to provide electrical power to an array of the energy efficient lights located on the light tower.

  15. Mobility Agreement for Criminal Investigators | Department of...

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

    Mobility Agreement for Criminal Investigators Mobility Agreement for Criminal Investigators PDF icon Mobility Agreement More Documents & Publications Semiannual Report to Congress: ...

  16. Mobility platform coupling device and method for coupling mobility platforms

    DOE Patents [OSTI]

    Shirey, David L.; Hayward, David R.; Buttz, James H.

    2002-01-01

    A coupling device for connecting a first mobility platform to a second mobility platform in tandem. An example mobility platform is a robot. The coupling device has a loose link mode for normal steering conditions and a locking position, tight link mode for navigation across difficult terrain and across obstacles, for traversing chasms, and for navigating with a reduced footprint in tight steering conditions.

  17. Highly Insulating Windows with a U-value less than 0.6 W/m2K

    SciTech Connect (OSTI)

    Wendell Rhine; Ying Tang; Wenting Dong; Roxana Trifu; Reduane Begag

    2008-11-30

    U.S. households rely primarily on three sources of energy: natural gas, electricity, and fuel oil. In the past several decades, electricity consumption by households has grown dramatically, and a significant portion of electricity used in homes is for lighting. Lighting includes both indoor and outdoor lighting and is found in virtually every household in the United States. In 2001, according to the US Energy Information Administration, lighting accounted for 101 billion kWh (8.8 percent) of U.S. household electricity use. Incandescent lamps, which are commonly found in households, are highly inefficient sources of light because about 90 percent of the energy used is lost as heat. For that reason, lighting has been one focus area to increase the efficiency of household electricity consumption. Windows have several functions, and one of the main functions is to provide a view to the outside. Daylighting is another one of windows main functions and determines the distribution of daylight to a space. Daylighting windows do not need to be transparent, and a translucent daylighting window is sufficient, and often desired, to diffuse the light and make the space more environmentally pleasing. In homes, skylights are one source of daylighting, but skylights are not very energy efficient and are inseparably linked to solar heat gain. In some climates, added solar heat gains from daylighting may be welcome; but in other climates, heat gain must be controlled. More energy efficient skylights and daylighting solutions, in general, are desired and can be designed by insulating them with aerogels. Aerogels are a highly insulating and transparent material in its pure form. The overall objective for this project was to prepare an economical, translucent, fiber-reinforced aerogel insulation material for daylighting applications that is durable for manufacturing purposes. This advanced insulation material will increase the thermal performance of daylighting windows, while satisfying constraints such as durability, cost, user acceptance, size limits, and environmental safety concerns. The energy efficient daylighting window will consist of a translucent and resilient aerogel panel sandwiched between glass panes in double glazed windows. Compared to the best windows available today, the double glazed translucent windows with 1/2-inch aerogel inserts will have a U-value of 1.2 W/m{sup 2} K (0.211 BTU/ft{sup 2} h F) without any coating or low conductivity fill gases. These windows will be more effective than the windows with an Energy Star rating of U-2 W/m{sup 2} K and could be made even more efficient by using low-e coated glass glazings and inert gas fills. This report summarizes the work accomplished on Cooperative Agreement DE-FC26-03NT41950. During this project, Aspen Aerogels made transparent and translucent aerogels from TMOS and TEOS. We characterized the transparency of the aerogels, reinforced the transparent aerogels with fibers and prepared large translucent aerogel panels and blankets. We also conducted an initial market study for energy efficient translucent windows. A lab-scale process was developed that could be scaled-up to manufacture blankets of these translucent aerogels. The large blankets prepared were used to fabricate prototype translucent windows and skylights. The primary goal of this project was to develop transparent, resilient, hydrophobic silica aerogels that have low thermal conductivities (R-10/inch) to be used to produce aerogel insulated double-glazing windows with a U value of 0.6 W/m{sup 2}K. To meet this objective we developed a process and equipment to produce blankets of translucent, hydrophobic aerogel. We focused on silica, organically-modified silica aerogels (Ormosils), and fiber reinforced silica aerogels due to the appreciable expertise in silica sol-gel processing available with the personnel at Aspen Aerogels, and also due to the quantity of knowledge available in the scientific literature. The project was conducted in three budget periods, herein called BP1, BP2 and BP3.

  18. Buildings Energy Data Book: 5.2 Windows

    Buildings Energy Data Book [EERE]

    2 Residential Storm Window and Door Shipments, by Frame Type (Million Units) Type 1990 2000 2005 2008 1990 2000 2005 2008 1990 2000 2005 2008 Aluminum 10 8 7 N/A 2 4 4 3 12 12 11 N/A Wood 0 0 0 N/A 0 0 0 0 0 0 0 N/A Other (1) 1 2 2 N/A 0 1 2 1 1 4 4 N/A Total (2) 11 11 9 N/A 2 6 6 4 13 16 15 N/A Note(s): Windows Doors Total 1) Other includes metal over wood/foam core or vinyl, etc. 2) Due to rounding, sums may not add up to totals. Source(s): AAMA/NWWDA, Industry Statistical Review and Forecast

  19. Beam Fields in an Integrated Cavity, Coupler and Window Configuration

    SciTech Connect (OSTI)

    Weathersby, Stephen; Novokhatski, Alexander; /SLAC

    2010-02-10

    In a multi-bunch high current storage ring, beam generated fields couple strongly into the RF cavity coupler structure when beam arrival times are in resonance with cavity fields. In this study the integrated effect of beam fields over several thousand RF periods is simulated for the complete cavity, coupler, window and waveguide system of the PEP-II B-factory storage ring collider. We show that the beam generated fields at frequencies corresponding to several bunch spacings for this case gives rise to high field strength near the ceramic window which could limit the performance of future high current storage rings such as PEP-X or Super B-factories.

  20. Reflective insulating blinds for windows and the like

    DOE Patents [OSTI]

    Barnes, P.R.; Shapira, H.B.

    1979-12-07

    Energy-conserving window blinds are provided. The blinds are fabricated from coupled and adjustable slats, each slat having an insulation layer and a reflective surface to face outwardly when the blinds are closed. A range of desired light and air transmission may be selected with the reflective surfaces of the slats adapted to direct sunlight upward toward the ceiling when the blinds are open. When the blinds are closed, the insulation of the slats reduces the heat loss or gain produced by the windows. If desired, the reflective surfaces of the slats may be concave. The edges of the slats are designed to seal against adjacent slats when the blinds are closed to ensure minimum air flow between slats.

  1. Reflective insulating blinds for windows and the like

    DOE Patents [OSTI]

    Barnes, Paul R.; Shapira, Hanna B.

    1981-01-01

    Energy-conserving window blinds are provided. The blinds are fabricated from coupled and adjustable slats, each slat having an insulation layer and a reflective surface to face outwardly when the blinds are closed. A range of desired light and air transmission may be selected with the reflective surfaces of the slats adapted to direct sunlight upward toward the ceiling when the blinds are open. When the blinds are closed, the insulation of the slats reduces the heat loss or gain produced by the windows. If desired, the reflective surfaces of the slats may be concave. The edges of the slats are designed to seal against adjacent slats when the blinds are closed to ensure minimum air flow between slats.

  2. Performance prediction using geostatistics and window reservoir simulation

    SciTech Connect (OSTI)

    Fontanilla, J.P.; Al-Khalawi, A.A.; Johnson, S.G.

    1995-11-01

    This paper is the first window model study in the northern area of a large carbonate reservoir in Saudi Arabia. It describes window reservoir simulation with geostatistics to model uneven water encroachment in the southwest producing area of the northern portion of the reservoir. In addition, this paper describes performance predictions that investigate the sweep efficiency of the current peripheral waterflood. A 50 x 50 x 549 (240 m. x 260 m. x 0.15 m. average grid block size) geological model was constructed with geostatistics software. Conditional simulation was used to obtain spatial distributions of porosity and volume of dolomite. Core data transforms were used to obtain horizontal and vertical permeability distributions. Simple averaging techniques were used to convert the 549-layer geological model to a 50 x 50 x 10 (240 m. x 260 m. x 8 m. average grid block size) window reservoir simulation model. Flux injectors and flux producers were assigned to the outermost grid blocks. Historical boundary flux rates were obtained from a coarsely-ridded full-field model. Pressure distribution, water cuts, GORs, and recent flowmeter data were history matched. Permeability correction factors and numerous parameter adjustments were required to obtain the final history match. The permeability correction factors were based on pressure transient permeability-thickness analyses. The prediction phase of the study evaluated the effects of infill drilling, the use of artificial lifts, workovers, horizontal wells, producing rate constraints, and tight zone development to formulate depletion strategies for the development of this area. The window model will also be used to investigate day-to-day reservoir management problems in this area.

  3. X-ray Induced Quasiparticles: New Window on Unconventional

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

    Superconductivity | U.S. DOE Office of Science (SC) X-ray Induced Quasiparticles: New Window on Unconventional Superconductivity Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594

  4. ORGBUG -- A windows-based combinatorial geometry debugger

    SciTech Connect (OSTI)

    Burns, T.J.

    1993-06-01

    ORGBUG is the second half of a two part graphical display and debugging system for combinatorial geometry. The first part of the system consists of a ``view`` generator, CGVIEW. ORGBUG itself is a Microsoft Windows-based application designed to run on a 386 personal computer and to display the ``view`` produced by CGVIEW as an aid to debugging. ORGBUG also includes specific tools to facilitate the identification of geometric features which are inconsistent or in error.

  5. ORGBUG -- A windows-based combinatorial geometry debugger

    SciTech Connect (OSTI)

    Burns, T.J.

    1993-06-01

    ORGBUG is the second half of a two part graphical display and debugging system for combinatorial geometry. The first part of the system consists of a view'' generator, CGVIEW. ORGBUG itself is a Microsoft Windows-based application designed to run on a 386 personal computer and to display the view'' produced by CGVIEW as an aid to debugging. ORGBUG also includes specific tools to facilitate the identification of geometric features which are inconsistent or in error.

  6. High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems

    SciTech Connect (OSTI)

    Baechler, M.; Gilbride, T.; Ruiz, K.; Steward, H.; Love, P.

    2007-06-01

    This document is the sixth volume of the Building America Best Practices Series. It presents information that is useful throughout the United States for enhancing the energy efficiency practices in the specific climate zones that are presented in the first five Best Practices volumes. It provides an introduction to current photovoltaic and solar thermal building practices. Information about window selection and shading is included.

  7. Thermal performance of an earth-sheltered passive solar residence

    SciTech Connect (OSTI)

    LaVigne, A.B. (Puget Sound Power and Light Co., Bellevue, WA); Schuldt, M.A.

    1981-01-01

    Results are presented of the measured thermal performance of a direct gain, passive solar residence in the Pacific Northwest. The east, west, and north exterior walls of the house are bermed to within 12 inches (30 cm) of the ceiling; sliding interior insulated panels cover the double glazed, south facing windows when appropriate. The cost of the house construction was kept modest.

  8. EERE Success Story-Performance Validation of Low-e Storm Windows...

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

    Installing a low-e storm window over a low performing window can reduce a home's heating ... us the confidence to pursue a technology proving project pilot program in our district. ...

  9. Electrochromism vs. the Bugs:DevelopingWO3 Thin Film Windows...

    Office of Scientific and Technical Information (OSTI)

    Thin Film Windows toControl Photoactive Biological Systems. Citation Details In-Document Search Title: Electrochromism vs. the Bugs:DevelopingWO3 Thin Film Windows toControl ...

  10. How Do You Use Daylighting While Reducing Excess Heat from Windows...

    Office of Environmental Management (EM)

    Use Daylighting While Reducing Excess Heat from Windows? How Do You Use Daylighting While Reducing Excess Heat from Windows? June 16, 2011 - 7:30am Addthis On Monday, Elizabeth ...

  11. Long range hopping mobility platform.

    SciTech Connect (OSTI)

    Spletzer, Barry Louis; Fischer, Gary John

    2003-03-01

    Sandia National Laboratories has developed a mesoscale hopping mobility platform (Hopper) to overcome the longstanding problems of mobility and power in small scale unmanned vehicles. The system provides mobility in situations such as negotiating tall obstacles and rough terrain that are prohibitive for other small ground base vehicles. The Defense Advanced Research Projects Administration (DARPA) provided the funding for the hopper project.

  12. New Window Technology Saves Energy and the View | Department of Energy

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

    Window Technology Saves Energy and the View New Window Technology Saves Energy and the View November 5, 2013 - 3:55pm Addthis Researchers at the Energy Department's National Renewable Energy Laboratory are developing innovative new window technology that helps improve occupants' comfort and cuts energy use. | Photo courtesy of Pat Corkery, NREL. Researchers at the Energy Department's National Renewable Energy Laboratory are developing innovative new window technology that helps improve

  13. EERE Success Story-Pennsylvania: New Series of Windows Has Potential to

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

    Save Energy for Commercial Buildings | Department of Energy New Series of Windows Has Potential to Save Energy for Commercial Buildings EERE Success Story-Pennsylvania: New Series of Windows Has Potential to Save Energy for Commercial Buildings March 6, 2014 - 4:10pm Addthis The project is being administered by BTO's Emerging Technologies Program. It is the first R-5 window series for the commercial buildings sector that also surpasses the highly-efficient requirements for R-5 windows. The

  14. Department of Energy Announces 14 New Projects for Window Efficiency Technologies

    Broader source: Energy.gov [DOE]

    ARPA-E Awards $31 Million to Develop Innovative Materials that Reduce Heat Loss through Single-Pane Windows

  15. U-028: Microsoft Windows win32k.sys TrueType Font Parsing Vulnerability

    Broader source: Energy.gov [DOE]

    A vulnerability has been reported in Microsoft Windows, which can be exploited by malicious people to compromise a user's system.

  16. Integrated self-cleaning window assembly for optical transmission in combustion environments

    DOE Patents [OSTI]

    Kass, Michael D [Oak Ridge, TN

    2007-07-24

    An integrated window design for optical transmission in combustion environments is described. The invention consists of an integrated optical window design that prevents and removes the accumulation of carbon-based particulate matter and gaseous hydrocarbons through a combination of heat and catalysis. These windows will enable established optical technologies to be applied to combustion environments and their exhaust systems.

  17. Mobile Biomass Pelletizing System

    SciTech Connect (OSTI)

    Thomas Mason

    2009-04-16

    This grant project examines multiple aspects of the pelletizing process to determine the feasibility of pelletizing biomass using a mobile form factor system. These aspects are: the automatic adjustment of the die height in a rotary-style pellet mill, the construction of the die head to allow the use of ceramic materials for extreme wear, integrating a heat exchanger network into the entire process from drying to cooling, the use of superheated steam for adjusting the moisture content to optimum, the economics of using diesel power to operate the system; a break-even analysis of estimated fixed operating costs vs. tons per hour capacity. Initial development work has created a viable mechanical model. The overall analysis of this model suggests that pelletizing can be economically done using a mobile platform.

  18. Environmental Technology Verification of Mobile Sources Control...

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

    Environmental Technology Verification of Mobile Sources Control Technologies Environmental Technology Verification of Mobile Sources Control Technologies 2005 Diesel Engine...

  19. Building America Webinar: Low-E Storms: The Next Big Thing in Window

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

    Retrofits | Department of Energy Low-E Storms: The Next Big Thing in Window Retrofits Building America Webinar: Low-E Storms: The Next Big Thing in Window Retrofits This Building America webinar presented a new and improved low-e storm window that boasts a combination of curb appeal and energy efficiency, all for a fraction of the cost of window replacement, on Sept. 9, 2014. Thomas Culp, Birch Point Consulting, LLC, discussed the development of low-e storm windows and examples of success

  20. 5 Steps to Making Your Windows More Energy Efficient | Department of Energy

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

    Steps to Making Your Windows More Energy Efficient 5 Steps to Making Your Windows More Energy Efficient December 13, 2013 - 4:06pm Addthis Keep your hard-earned dollars from flying out the window by following the <a href="http://apps1.eere.energy.gov/buildings/publications/pdfs/building_america/measure_guide_wood_windows.pdf">latest guidelines for window repair, rehabilitation and replacement</a>. | Photo courtesy of the Weatherization Assistance Program Technical

  1. Storm Windows (Even with a Low-E Coating!) | Department of Energy

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

    Storm Windows (Even with a Low-E Coating!) Storm Windows (Even with a Low-E Coating!) November 11, 2008 - 3:45pm Addthis John Lippert Earlier I wrote about purchasing energy-efficient windows. Jen followed up with an excellent blog on improving your existing windows, which mentioned low-e films. One fairly well-kept secret-low-emissivity (low-e) storm windows-lies somewhere between these two options. They aren't the simple, low-cost, do-it-yourself option that Jen spoke of. But they are a less

  2. Building America's Low-e Storm Window Adoption Program Plan (FY2014)

    SciTech Connect (OSTI)

    Cort, Katherine A.

    2013-12-23

    Low emissivity (low-e) storm windows/panels appear to hold promise for effectively reducing existing home heating, ventilation, and air-conditioning (HVAC) consumption. Due to the affordability of low-e storm windows and the large numbers of existing homes that have low-performing single-pane or double-pane clear windows, a tremendous opportunity exists to provide energy savings by transforming the low-e storm window market and increasing market adoption. This report outlines U.S. Department of Energy (DOE) Building America’s planned market transformation activities in support of low-e storm window adoption during fiscal year (FY) 2014.

  3. ALPHA ENHANCEMENT AND THE METALLICITY DISTRIBUTION FUNCTION OF PLAUT'S WINDOW

    SciTech Connect (OSTI)

    Johnson, Christian I.; Michael Rich, R.; Fulbright, Jon P.; Valenti, Elena; McWilliam, Andrew E-mail: rmr@astro.ucla.edu E-mail: evalenti@eso.org

    2011-05-10

    We present Fe, Si, and Ca abundances for 61 giants in Plaut's window (l = -1{sup 0}, b = -8.{sup 0}5) and Fe abundances for an additional 31 giants in a second, nearby field (l = 0{sup 0}, b = -8{sup 0}) derived from high-resolution (R {approx} 25,000) spectra obtained with the Blanco 4 m telescope and Hydra multifiber spectrograph. The median metallicity of red giant branch (RGB) stars in the Plaut's field is {approx}0.4 dex lower than those in Baade's window, and confirms the presence of an iron abundance gradient along the bulge minor axis. The full metallicity range of our (biased) RGB sample spans -1.5 < [Fe/H] < +0.3, which is similar to that found in other bulge fields. We also derive a photometric metallicity distribution function for RGB stars in the (l = -1{sup 0}, b = -8{sup 0}.5) field and find very good agreement with the spectroscopic metallicity distribution. The radial velocity (RV) and dispersion data for the bulge RGB stars are in agreement with previous results of the Bulge Radial Velocity Assay survey, and we find evidence for a decreasing velocity dispersion with increasing [Fe/H]. The [{alpha}/Fe] enhancement in Plaut field stars is nearly identical to that observed in Baade's window, and suggests that an [{alpha}/Fe] gradient does not exist between b = -4{sup 0} and -8{sup 0}. Additionally, a subset of our sample (23 stars) appears to be foreground red clump stars that are very metal rich, exhibit small metallicity and RV dispersions, and are enhanced in {alpha} elements. While these stars likely belong to the Galactic inner disk population, they exhibit [{alpha}/Fe] ratios that are enhanced above the thin and thick disk.

  4. Graph of Total Number of Oligos Within Windows of a Sequence

    Energy Science and Technology Software Center (OSTI)

    1995-11-28

    SEQWIN is user-friendly software which graphs the total number of oligos present in a sequence. The sequence is scanned one window at a time; windows can be overlapping. Each bar on the graph represents a single window down the sequence. The user specifies the sequence of interest and a list of oligos as program input. If the sequence is known, locations of specific structure or sequences can be specified and compared with the bars onmore » a graph. The window size, amount of overlap of the windows, number of windows to be considered, and the starting position of the first window used can be adjusted at the user's discretion.« less

  5. Buildings Energy Data Book: 5.2 Windows

    Buildings Energy Data Book [EERE]

    1 Residential Prime Window Sales, by Frame Type (Million Units) (1) New Construction 1990 1995 2000 2005 2007 2009 Remodeling/Replacement 1990 1995 2000 2005 2007 2009 Total Construction 1990 1995 2000 2005 2007 2009 Note(s): Source(s): AAMA, Industry Statistical Review and Forecast 1992, 1993 for Note 2; AAMA/NWWDA, Industry Statistical Review and Forecast 1996, 1997, Table 6, p. 6 for 1990; AAMA/WDMA, 2000 AAMA/WDMA Industry Statistical Review and Forecast, Feb. 2001, p. 6 for 1995; 2003

  6. Expert Meeting Report. Windows Options for New and Existing Homes

    SciTech Connect (OSTI)

    Ojczyck, C.; Carmody, J.; Haglund, K.

    2013-05-01

    The NorthernSTAR Building America Partnership held an Expert Meeting on Windows Options for New and Existing Homes on November 14, 2011, at the Nolte Building on the campus of the University of Minnesota in Minneapolis, MN. Featured speakers included John Carmody and Pat Huelman of the University of Minnesota, Charlie Curcija of Lawrence Berkeley National Laboratory, Jim Larson of Cardinal Glass Industries, Peter Yost of Building Green, Peter Baker of Building Science Corporation, and Theresa Weston of Du Pont Innovations. Audience participation was actively encouraged during each presentation to uncover need and promote dialog among researchers and industry professionals.

  7. Expert Meeting Report: Windows Options for New and Existing Homes

    SciTech Connect (OSTI)

    Ojczyk, C.; Carmody, J.; Haglund, K.

    2013-05-01

    The NorthernSTAR Building America Partnership held an Expert Meeting on Windows Options for New and Existing Homes on November 14, 2011 at the Nolte Building on the campus of the University of Minnesota in Minneapolis, MN. Featured speakers included John Carmody and Pat Huelman of the University of Minnesota, Charlie Curcija of Lawrence Berkeley National Laboratory, Jim Larson of Cardinal Glass Industries, Peter Yost of Building Green, Peter Baker of Building Science Corporation, and Theresa Weston of Du Pont Innovations. Audience participation was actively encouraged during each presentation to uncover need and promote dialog among researchers and industry professionals.

  8. Hole Blocking, Electron Transporting and Window Layer for Optimized

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

    Culn(1-x)GaxSe2 Solar Cells - Energy Innovation Portal Solar Photovoltaic Solar Photovoltaic Advanced Materials Advanced Materials Find More Like This Return to Search Hole Blocking, Electron Transporting and Window Layer for Optimized Culn(1-x)GaxSe2 Solar Cells Brookhaven National Laboratory Contact BNL About This Technology <br type="_moz" /> A schematic illustration of an exemplary embodiment of the disclosed CIGS based solar cell, with a quasi-2-dimensional electron

  9. Feasibility study of broadband efficient ''water window'' source

    SciTech Connect (OSTI)

    Higashiguchi, Takeshi; Yugami, Noboru; Otsuka, Takamitsu; Jiang Weihua; Endo, Akira; Li Bowen; Dunne, Padraig; O'Sullivan, Gerry

    2012-01-02

    We demonstrate a table-top broadband emission water window source based on laser-produced high-Z plasmas. Resonance emission from multiply charged ions merges to produce intense unresolved transition arrays (UTAs) in the 2-4 nm region, extending below the carbon K edge (4.37 nm). Arrays resulting from n=4-n=4 transitions are overlaid with n=4-n=5 emission and shift to shorter wavelength with increasing atomic number. An outline of a microscope design for single-shot live cell imaging is proposed based on a bismuth plasma UTA source, coupled to multilayer mirror optics.

  10. GenoGraphics for OpenWindows trademark

    SciTech Connect (OSTI)

    Hagstrom, R.; Overbeek, R.; Price, M.; Zawada, D. ); Michaels, G.S.; Taylor, R. . Div. of Computer Research and Technology); Yoshida, Kaoru )

    1992-04-01

    GenoGraphics is a generic utility for constructing and querying one-dimensional linear plots. The outgrowth of a request from Dr. Cassandra Smith for a tool to facilitate her genome mapping research. GenoGraphics development has benefited from a continued collaboration with her. Written in Sun Microsystem's OpenWindows environment and the BTOL toolkit developed at Argonne National Laboratory. GenoGraphics provides an interactive, intuitive, graphical interface. Its features include: viewing multiple maps simultaneously, zooming, and querying by mouse clicking. By expediting plot generation, GenoGraphics gives the scientist more time to analyze data and a novel means for deducing conclusions.

  11. GenoGraphics for OpenWindows{trademark}

    SciTech Connect (OSTI)

    Hagstrom, R.; Overbeek, R.; Price, M.; Zawada, D.; Michaels, G.S.; Taylor, R.; Yoshida, Kaoru

    1992-04-01

    GenoGraphics is a generic utility for constructing and querying one-dimensional linear plots. The outgrowth of a request from Dr. Cassandra Smith for a tool to facilitate her genome mapping research. GenoGraphics development has benefited from a continued collaboration with her. Written in Sun Microsystem`s OpenWindows environment and the BTOL toolkit developed at Argonne National Laboratory. GenoGraphics provides an interactive, intuitive, graphical interface. Its features include: viewing multiple maps simultaneously, zooming, and querying by mouse clicking. By expediting plot generation, GenoGraphics gives the scientist more time to analyze data and a novel means for deducing conclusions.

  12. The Open Host Network Packet Process Correlator for Windows

    Energy Science and Technology Software Center (OSTI)

    2014-06-17

    The Hone sensors are packet-process correlation engines that log the relationships between applications and the communications they are responsible for. Hone sensors are available for a variety of platforms including Linux, Windows, and MacOSX. Hone sensors are designed to help analysts understand the meaning of communications on a deeper level by associating the origin or destination process to the communication. They do this by tracing communications on a per-packet basis, through the kernel of themore » operating system to determine their ultimate source/destination on the monitored machine.« less

  13. Electrochromic Window Demonstration at the Donna Land Port of Entry

    SciTech Connect (OSTI)

    Fernandes, Luis L.; Lee, Eleanor S.; Thanachareonkit, Anothai

    2015-05-01

    The U.S. General Services Administration (GSA) Public Buildings Service (PBS) has jurisdiction, custody or control over 105 land ports of entry throughout the United States, 35 of which are located along the southern border. At these facilities, one of the critical functions of windows is to provide border control personnel with direct visual contact with the surrounding environment. This also can be done through surveillance cameras, but the high value that U.S. Customs and Border Protection (CPB) officers place on direct visual contact can be encapsulated in the following statement by a senior officer regarding this project: “nothing replaces line of sight.” In sunny conditions, however, outdoor visibility can be severely compromised by glare, especially when the orb of the sun is in the field of view. This often leads to the deployment of operable shading devices, such as Venetian blinds. While these devices address the glare, they obstruct the view of the surroundings, negating the visual security benefits of the windows.

  14. Affordable Window Insulation with R-10/inch Rating

    SciTech Connect (OSTI)

    Jenifer Marchesi Redouane Begag; Je Kyun Lee; Danny Ou; Jong Ho Sonn; George Gould; Wendell Rhine

    2004-10-15

    During the performance of contract DE-FC26-00-NT40998, entitled ''Affordable Window Insulation with R-10/inch Value'', research was conducted at Aspen Aerogels, Inc. to develop new transparent aerogel materials suitable for window insulation applications. The project requirements were to develop a formulation or multiple formulations that have high transparency (85-90%) in the visible region, are hydrophobic (will not opacify with exposure to water vapor or liquid), and have at least 2% resiliency (interpreted as recoverable 2% strain and better than 5% strain to failure in compression). Results from an unrelated project showed that silica aerogels covalently bonded to organic polymers exhibit excellent mechanical properties. At the outset of this project, we believed that such a route is the best to improve mechanical properties. We have applied Design of Experiment (DOE) techniques to optimize formulations including both silica aerogels and organically modified silica aerogels (''Ormosils''). We used these DOE results to optimize formulations around the local/global optimization points. This report documents that we succeeded in developing a number of formulations that meet all of the stated criteria. We successfully developed formulations utilizing a two-step approach where the first step involves acid catalyzed hydrolysis and the second step involves base catalyzed condensation to make the gels. The gels were dried using supercritical CO{sub 2} and we were able to make 1 foot x 1 foot x 0.5 inch panels that met the criteria established.

  15. Resizing the conformal window: A {beta}-function ansatz

    SciTech Connect (OSTI)

    Antipin, O.; Tuominen, K.

    2010-04-01

    We propose an ansatz for the nonperturbative beta-function of a generic nonsupersymmetric Yang-Mills theory with or without fermions in an arbitrary representation of the gauge group. While our construction is similar to the recently proposed Ryttov-Sannino all-order beta-function, the essential difference is that it allows for the existence of an unstable ultraviolet fixed point in addition to the predicted Banks-Zaks-like infrared stable fixed point. Our beta-function preserves all of the tested features with respect to the nonsupersymmetric Yang-Mills theories. We predict the conformal window identifying the lower end of it as a merger of the infrared and ultraviolet fixed points.

  16. Vacuum chamber with a supersonic flow aerodynamic window

    DOE Patents [OSTI]

    Hanson, Clark L.

    1982-01-01

    A supersonic flow aerodynamic window, whereby a steam ejector situated in a primary chamber at vacuum exhausts superheated steam toward an orifice to a region of higher pressure, creating a barrier to the gas in the region of higher pressure which attempts to enter through the orifice. In a mixing chamber outside and in fluid communication with the primary chamber, superheated steam and gas are combined into a mixture which then enters the primary chamber through the orifice. At the point of impact of the ejector/superheated steam and the incoming gas/superheated steam mixture, a barrier is created to the gas attempting to enter the ejector chamber. This barrier, coupled with suitable vacuum pumping means and cooling means, serves to keep the steam ejector and primary chamber at a negative pressure, even though the primary chamber has an orifice to a region of higher pressure.

  17. Vacuum chamber with a supersonic-flow aerodynamic window

    DOE Patents [OSTI]

    Hanson, C.L.

    1980-10-14

    A supersonic flow aerodynamic window is disclosed whereby a steam ejector situated in a primary chamber at vacuum exhausts superheated steam toward an orifice to a region of higher pressure, creating a barrier to the gas in the region of higher pressure which attempts to enter through the orifice. In a mixing chamber outside and in fluid communication with the primary chamber, superheated steam and gas are combined into a mixture which then enters the primary chamber through the orifice. At the point of impact of the ejector/superheated steam and the incoming gas/superheated steam mixture, a barrier is created to the gas attempting to enter the ejector chamber. This barrier, coupled with suitable vacuum pumping means and cooling means, serves to keep the steam ejector and primary chamber at a negative pressure, even though the primary chamber has an orifice to a region of higher pressure.

  18. High-power testing of PEP-II RF cavity windows

    SciTech Connect (OSTI)

    Neubauer, M.; Allen, M.; Fant, K.; Hill, A.; Hoyt, M.; Judkins, J.; Schwarz, H.; Rimmer, R.A.

    1996-06-01

    We describe the high power testing of RF cavity windows for the PEP-II B factory. The window is designed for continuous operation at 476 MHz with up to 500 kW throughput and has been tested to full power using a modified PEP Klystron. The windows use an anti-multipactor coating on the vacuum side and the application and processing of this layer is discussed. The high power test configuration, RF processing history and high power performance are described.

  19. Building America Expert Meeting: Windows Options for New and Existing Homes

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

    | Department of Energy Windows Options for New and Existing Homes Building America Expert Meeting: Windows Options for New and Existing Homes The NorthernSTAR Building America Partnership held an Expert Meeting on Windows Options for New and Existing Homes on November 14, 2011 at the Nolte Building on the campus of the University of Minnesota in Minneapolis, MN. Featured speakers included John Carmody and Pat Huelman of the University of Minnesota, Charlie Curcija of Lawrence Berkeley

  20. Hydrofluoric acid-resistant composite window and method for its fabrication

    DOE Patents [OSTI]

    Ostenak, Carl A.; Mackay, Harold A.

    1987-01-01

    A hydrofluoric acid-resistant composite window and method for its fabrication are disclosed. The composite window comprises a window having first and second sides. The first side is oriented towards an environment containing hydrofluoric acid. An adhesive is applied to the first side. A layer of transparent hydrofluoric acid-resistant material, such as Mylar, is applied to the adhesive and completely covers the first side. The adhesive is then cured.

  1. Hydrofluoric acid-resistant composite window and method for its fabrication

    DOE Patents [OSTI]

    Ostenak, C.A.; Mackay, H.A.

    1985-07-18

    A hydrofluoric acid-resistant composite window and method for its fabrication are disclosed. The composite window comprises a window having first and second sides. The first side is oriented towards an environment containing hydrofluoric acid. An adhesive is applied to the first side. A layer of transparent hydrofluoric acid-resistant material, such as Mylar, is applied to the adhesive and completely covers the first side. The adhesive is then cured.

  2. R&D Magazine: Windows into Solar Power Sources with Quantum Dots

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

    R&D Magazine: Windows into Solar Power Sources with Quantum Dots A luminescent solar concentrator is an emerging sunlight harvesting technology that has the potential to disrupt ...

  3. Property:OpenEI/UtilityRate/DemandWindow | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search This is a property of type Number. Retrieved from "http:en.openei.orgwindex.php?titleProperty:OpenEIUtilityRateDemandWindow&oldid680274...

  4. T-573: Windows Remote Desktop Client DLL Loading Error Lets Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in Windows Remote Desktop Client. A remote user can cause arbitrary code to be executed on the target user's system.

  5. EERE Success Story-Energy-Efficient Smart Windows are Lowering Energy

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

    Costs | Department of Energy Energy-Efficient Smart Windows are Lowering Energy Costs EERE Success Story-Energy-Efficient Smart Windows are Lowering Energy Costs September 9, 2015 - 12:11pm Addthis Low-E windows – featuring an energy-saving technology developed at Berkeley National Laboratory– are now found in 80% of homes and 50% of buildings in the United States. Low-E windows - featuring an energy-saving technology developed at Berkeley National Laboratory- are now found in 80%

  6. EERE Success Story-Pennsylvania: Window Technology First of Its Kind for

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

    Commercial Buildings | Department of Energy Window Technology First of Its Kind for Commercial Buildings EERE Success Story-Pennsylvania: Window Technology First of Its Kind for Commercial Buildings November 8, 2013 - 12:00am Addthis Windows play a significant role in a building's energy use; in 2010, 2.55 quads of energy were lost through windows-the equivalent of more than 20 billion gallons of gasoline. In support of DOE's goal to reduce energy consumption in buildings by 50% by 2030,

  7. EERE Success Story-Performance Validation of Low-e Storm Windows Paves

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

    Way for Market Acceptance | Department of Energy Validation of Low-e Storm Windows Paves Way for Market Acceptance EERE Success Story-Performance Validation of Low-e Storm Windows Paves Way for Market Acceptance September 30, 2015 - 12:34pm Addthis A historic home with low-e storm windows. Image: QUANTA Technologies, Inc. A historic home with low-e storm windows. Image: QUANTA Technologies, Inc. One recent addition to the arsenal of cost-effective efficiency measures is low-emissivity

  8. Apparatus for preventing particle deposition from process streams on optical access windows

    DOE Patents [OSTI]

    Logan, Ronald G.; Grimm, Ulrich

    1993-01-01

    An electrostatic precipitator is disposed inside and around the periphery of the window of a viewing port communicating with a housing through which a particle-laden gas stream is being passed. The precipitator includes a pair of electrodes around the periphery of the window, spaced apart and connected to a unidirectional voltage source. Application of high voltage from the source to the electrodes causes air molecules in the gas stream to become ionized, attaching to solid particles and causing them to be deposited on a collector electrode. This prevents the particles from being deposited on the window and keeps the window clean for viewing and making optical measurements.

  9. U-225: Citrix Access Gateway Plug-in for Windows nsepacom ActiveX Control Vulnerabilities

    Broader source: Energy.gov [DOE]

    Two vulnerabilities in Citrix Access Gateway Plug-in for Windows can be exploited by malicious people to compromise a user's system.

  10. R&D Magazine: Windows into Solar Power Sources with Quantum Dots

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

    R&D Magazine: Windows into Solar Power Sources with Quantum Dots R&D Magazine: Windows into Solar Power Sources with Quantum Dots A luminescent solar concentrator is an emerging sunlight harvesting technology that has the potential to disrupt the way we think about energy: It could turn any window into a daytime power source. August 30, 2015 R&D Magazine: Windows into Solar Power Sources with Quantum Dots A luminescent solar concentrator is an emerging sunlight harvesting technology

  11. Savings Project: Install Exterior Storm Windows With Low-E Coating...

    Office of Environmental Management (EM)

    while keeping your home warm in the winter and cool in the summer. | Photo courtesy of Larson Manufacturing Company. Installing storm windows will lower your energy bill while...

  12. Evaluation of Interior Low-E Storm Windows in the PNNL Lab Homes...

    Office of Scientific and Technical Information (OSTI)

    Sponsoring Org: USDOE Country of Publication: United States Language: English Subject: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION Lab Homes; Storm; Windows; Low-e; ...

  13. T-727:Microsoft Windows SSL/TLS Protocol Flaw Lets Remote Users...

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

    T-727:Microsoft Windows SSLTLS Protocol Flaw Lets Remote Users Decryption Sessions ... U-033: Microsoft Security Bulletin Summary for November 2011 T-706: Microsoft Fraudulent ...

  14. R&D Magazine: Windows into Solar Power Sources with Quantum Dots

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

    R&D Magazine: Windows into Solar Power Sources with Quantum Dots August 30, 2015 R&D Magazine: Windows into Solar Power Sources with Quantum Dots A luminescent solar concentrator is an emerging sunlight harvesting technology that has the potential to disrupt the way we think about energy: It could turn any window into a daytime power source. "In these devices, a fraction of light transmitted through the window is absorbed by nano-sized particles (semiconductor quantum dots)

  15. Performance Validation of Low-e Storm Windows Paves Way for Market...

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

    ... Conventional storm window improves efficiency with additional air-sealing and an insulating "dead air space." Low-e coating further improves overall performance by increasing the ...

  16. A multiple deep attenuation frequency window for harmonic analysis in power systems

    SciTech Connect (OSTI)

    Daponte, P.; Falcomata, G. . Dept. di Elettronica Informatica e Sistemistica); Testa, A. . Dipt. di Ingegneria Elettrica)

    1994-04-01

    A novel window is presented and applied in electrical power system harmonic analysis. The goal of increasing the resolvability of low magnitude non-harmonic tones close in frequency to higher magnitude harmonics and the detectability of very low magnitude high frequency harmonics is pursued. The proposed window is derived from the Tseng window; its spectrum can be modeled in the synthesis stage and it is characterized by a narrow width main lobe and by sidelobes which are very low in correspondence to some specified frequencies. Numerical experiments demonstrate the performances and the usefulness of the new window in resolving periodic distorted waveforms in power systems.

  17. Savings Project: Install Exterior Storm Windows With Low-E Coating...

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

    Larson Manufacturing Company. Installing storm windows will lower your energy bill while keeping your home warm in the winter and cool in the summer. | Photo courtesy of Larson ...

  18. Smarter Smart Windows | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Smarter Smart Windows Basic Energy Sciences (BES) BES Home About Research Facilities Science ... Laboratory, and was supported by the Office of Science, Office of Basic Energy ...

  19. Purged window apparatus. [On-line spectroscopic analysis of gas flow systems

    DOE Patents [OSTI]

    Ballard, E.O.

    1982-04-05

    A purged window apparatus is described which utilizes tangentially injected heated purge gases in the vicinity of electromagnetic radiation transmitting windows and a tapered external mounting tube to accelerate these gases to provide a vortex flow on the window surface and a turbulent flow throughout the mounting tube thereby preventing backstreaming of flowing gases under investigation in a chamber to which a plurality of similar purged apparatus is attached with the consequent result that spectroscopic analyses can be undertaken for lengthy periods without the necessity of interrupting the flow for cleaning or replacing the windows due to contamination.

  20. Michigan, Missouri: Innovative Mobile Exhibits Bring Electric...

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

    Michigan, Missouri: Innovative Mobile Exhibits Bring Electric Vehicles to Students and Public Michigan, Missouri: Innovative Mobile Exhibits Bring Electric Vehicles to Students and...

  1. Improving Data Mobility & Management for International Cosmology...

    Office of Scientific and Technical Information (OSTI)

    Improving Data Mobility & Management for International Cosmology Citation Details In-Document Search Title: Improving Data Mobility & Management for International Cosmology You are ...

  2. Improving Data Mobility & Management for International Cosmology...

    Office of Scientific and Technical Information (OSTI)

    Improving Data Mobility & Management for International Cosmology Citation Details In-Document Search Title: Improving Data Mobility & Management for International Cosmology In February ...

  3. Buildings Energy Data Book: 5.2 Windows

    Buildings Energy Data Book [EERE]

    5 Residential Prime Window Sales, by Glass Type (Million Units) 1980 8.6 34% 0.0 0% 16.6 66% 25.2 100% 1990 4.9 14% 12.0 34% 18.7 53% 35.6 100% 1993 2.8 14% 17.2 84% 0.4 2% 20.4 100% 1995 5.5 12% 37.8 85% 1.3 3% 44.5 100% 1999 4.8 8% 55.2 89% 2.0 3% 62.0 100% 2001 3.9 7% 50.9 90% 1.5 3% 56.3 100% 2003 4.7 7% 55.9 89% 2.2 4% 62.8 100% 2005 4.2 6% 63.8 91% 2.5 3% 70.5 100% 2007 2.7 5% 55.0 93% 1.4 2% 59.1 100% 2009 1.6 4% 36.2 93% 1.2 3% 38.9 100% Note(s): 1) IG = insulated glazing. Source(s):

  4. Voltage tunability of thermal conductivity in ferroelectric materials

    DOE Patents [OSTI]

    Ihlefeld, Jon; Hopkins, Patrick Edward

    2016-02-09

    A method to control thermal energy transport uses mobile coherent interfaces in nanoscale ferroelectric films to scatter phonons. The thermal conductivity can be actively tuned, simply by applying an electrical potential across the ferroelectric material and thereby altering the density of these coherent boundaries to directly impact thermal transport at room temperature and above. The invention eliminates the necessity of using moving components or poor efficiency methods to control heat transfer, enabling a means of thermal energy control at the micro- and nano-scales.

  5. A Moving Window Technique in Parallel Finite Element Time Domain Electromagnetic Simulation

    SciTech Connect (OSTI)

    Lee, Lie-Quan; Candel, Arno; Ng, Cho; Ko, Kwok; ,

    2010-06-07

    A moving window technique for the finite element time domain (FETD) method is developed to simulate the propagation of electromagnetic waves induced by the transit of a charged particle beam inside large and long structures. The window moving along with the beam in the computational domain adopts high-order finite-element basis functions through p refinement and/or a high-resolution mesh through h refinement so that a sufficient accuracy is attained with substantially reduced computational costs. Algorithms to transfer discretized fields from one mesh to another, which are the key to implementing a moving window in a finite-element unstructured mesh, are presented. Numerical experiments are carried out using the moving window technique to compute short-range wakefields in long accelerator structures. The results are compared with those obtained from the normal FETD method and the advantages of using the moving window technique are discussed.

  6. Method of fabricating a microelectronic device package with an integral window

    DOE Patents [OSTI]

    Peterson, Kenneth A.; Watson, Robert D.

    2003-01-01

    A method of fabricating a microelectronic device package with an integral window for providing optical access through an aperture in the package. The package is made of a multilayered insulating material, e.g., a low-temperature cofired ceramic (LTCC) or high-temperature cofired ceramic (HTCC). The window is inserted in-between personalized layers of ceramic green tape during stackup and registration. Then, during baking and firing, the integral window is simultaneously bonded to the sintered ceramic layers of the densified package. Next, the microelectronic device is flip-chip bonded to cofired thick-film metallized traces on the package, where the light-sensitive side is optically accessible through the window. Finally, a cover lid is attached to the opposite side of the package. The result is a compact, low-profile package, flip-chip bonded, hermetically-sealed package having an integral window.

  7. Installing Windows with Foam Sheathing on a Wood-Frame Wall: January 1, 2004 to December 31, 2004

    SciTech Connect (OSTI)

    2005-05-01

    In most wall assemblies, connection details around windows have been the source of problems with water penetration into the building. This report describes how to install a window into a wall with insulating sheathing as an integrated drainage plane.

  8. Examination of the technical potential of near-infrared switching thermochromic windows for commercial building applications

    SciTech Connect (OSTI)

    Hoffmann, Sabine; Lee, Eleanor S.; Clavero, Cesar

    2013-12-01

    Current thermochromic windows modulate solar transmission primarily within the visible range, resulting in reduced space-conditioning energy use but also reduced daylight, thereby increasing lighting energy use compared to conventional static, near-infrared selective, low-emittance windows. To better understand the energy savings potential of improved thermochromic devices, a hypothetical near-infrared switching thermochromic glazing was defined based on guidelines provided by the material science community. EnergyPlus simulations were conducted on a prototypical large office building and a detailed analysis was performed showing the progression from switching characteristics to net window heat flow and perimeter zone loads and then to perimeter zone heating, ventilation, and air-conditioning (HVAC) and lighting energy use for a mixed hot/cold climate and a hot, humid climate in the US. When a relatively high daylight transmission is maintained when switched (Tsol = 0.10-0.50, Tvis = 0.30-0.60) and if coupled with a low-e inboard glazing layer (e = 0.04), the hypothetical thermochromic window with a low critical switching temperature range (14-20°C) achieved reductions in total site annual energy use of 14.0-21.1 kWh/m2-floor-yr or 12-14%2 for moderate- to large-area windows (WWR≥0.30) in Chicago and 9.8-18.6 kWh/m2-floor-yr or 10-17%3 for WWR≥0.45 in Houston compared to an unshaded spectrally-selective, low-e window (window E1) in south-, east-, and west-facing perimeter zones. If this hypothetical thermochromic window can be offered at costs that are competitive to conventional low-e windows and meet aesthetic requirements defined by the building industry and end users, then the technology is likely to be a viable energy-efficiency option for internal load dominated commercial buildings.

  9. Thermal insulation for buildings. (Latest citations from the Compendex database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-06-01

    The bibliography contains citations concerning materials used for the thermal insulation of buildings. Consumer acceptance of materials and weatherproofing options are included. Insulation in new and retrofitted buildings is discussed. Residential buildings, earth sheltered structures, greenhouses, and animal houses are among the structures studied. Infrared thermal sensing of heat loss, insulation placement, multilayer partition walls, and insulating windows are briefly considered. (Contains 250 citations and includes a subject term index and title list.)

  10. MiniBooNE as realated to "Window's on the Universe"

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

    "Windows on the Universe" Ray Stefanski Fermilab Blois 2009 Windows on the Universe June 22, 2009 Outline: Introduction Current Status New Results Expectations Summary June 22, 2009 Blois 2009 Windows on the Universe 2 Introduction                 : nce disappeara : appearance s experiment n oscillatio e e   MiniBooNE   SciBooNE accelerator sources stopped muons @ LANL -> LSND BNB @ FNAL -> MiniBooNE -> SciBooNE NuMI

  11. The suppression effect of external magnetic field on the high-power microwave window multipactor phenomenon

    SciTech Connect (OSTI)

    Zhang, Xue Wang, Yong; Fan, Junjie

    2015-02-15

    To suppress the surface multipactor phenomenon and improve the transmitting power of the high-power microwave window, the application of external magnetic fields is theoretically analyzed and simulated. A Monte Carlo algorithm is used to track the secondary electron trajectories and study the multipactor scenario on the surface of a cylinder window. It is confirmed that over-resonant magnetic fields (an external magnetic field whose magnitude is slightly greater than that of a resonant magnetic field) will generate a compensating trajectory and collision, which can suppress the secondary electron avalanche. The optimal value of this external magnetic field that will avoid the multipactor phenomenon on cylinder windows is discussed.

  12. Effects of thermal fluctuations on thermal inflation

    SciTech Connect (OSTI)

    Hiramatsu, Takashi; Miyamoto, Yuhei; Yokoyama, Jun’ichi

    2015-03-12

    The mechanism of thermal inflation, a relatively short period of accelerated expansion after primordial inflation, is a desirable ingredient for a certain class of particle physics models if they are not to be in contention with the cosmology of the early Universe. Though thermal inflation is most simply described in terms of a thermal effective potential, a thermal environment also gives rise to thermal fluctuations that must be taken into account. We numerically study the effects of these thermal fluctuations using lattice simulations. We conclude that though they do not ruin the thermal inflation scenario, the phase transition at the end of thermal inflation proceeds through phase mixing and is therefore not accompanied by the formations of bubbles nor appreciable amplitude of gravitational waves.

  13. High Temperature Thermal Array for Next Generation Solar Thermal...

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

    High Temperature Thermal Array for Next Generation Solar Thermal Power Production High Temperature Thermal Array for Next Generation Solar Thermal Power Production This ...

  14. Performance Validation of Low-e Storm Windows Paves Way for Market Acceptance

    Broader source: Energy.gov [DOE]

    One recent addition to the arsenal of cost-effective efficiency measures is low-emissivity (low-e) storm windows. A low-e coating or glazing is a thin layer deposited directly on the surface of one...

  15. U-045: Windows Win32k.sys Keyboard Layout Bug Lets Local Users...

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

    ID: SA46919 IMPACT ASSESSMENT: Low Discussion: A vulnerability has been discovered in Microsoft Windows, which can be exploited by malicious, local users to cause a DoS (Denial...

  16. Low-e Storm Windows: Market Assessment and Pathways to Market Transformation

    SciTech Connect (OSTI)

    Cort, Katherine A.

    2013-06-08

    Field studies sponsored by the U.S. Department of Energy (DOE) have shown that the use of low-e storm windows can lead to significant heating and cooling energy savings in residential homes. This study examines the market for low-e storm windows based on market data, case studies, and recent experience with weatherization deployment programs. It uses information from interviews conducted with DOE researchers and industry partners involved in case studies and early deployment efforts related to low-e storm windows. In addition, this study examines potential barriers to market acceptance, assesses the market and energy savings potential, and identifies opportunities to transform the market for low-e storm windows and overcome market adoption barriers.

  17. Preliminary Assessment of the Energy-Saving Potential of Electrochromic Windows in Residential Buildings

    SciTech Connect (OSTI)

    Roberts, D. R.

    2009-12-01

    Electrochromic windows provide variable tinting that can help control glare and solar heat gain. We used BEopt software to evaluate their performance in prototypical energy models of a single-family home.

  18. Building America Top Innovations 2013 Profile – High-Efficiency Window Air Conditioners

    SciTech Connect (OSTI)

    none,

    2013-09-01

    This Top Innovation profile explains how comprehensive performance testing by the National Renewable Energy Laboratory led to simple, affordable methods that homeowners could employ for increasing the energy efficiency of window air conditioners.

  19. Bi-level multilayered microelectronic device package with an integral window

    DOE Patents [OSTI]

    Peterson, Kenneth A.; Watson, Robert D.

    2002-01-01

    A bi-level, multilayered package with an integral window for housing a microelectronic device. The device can be a semiconductor chip, a CCD chip, a CMOS chip, a VCSEL chip, a laser diode, a MEMS device, or a IMEMS device. The multilayered package can be formed of a low-temperature cofired ceramic (LTCC) or high-temperature cofired ceramic (HTCC) multilayer processes with the window being simultaneously joined (e.g. cofired) to the package body during LTCC or HTCC processing. The microelectronic device can be flip-chip bonded and oriented so that the light-sensitive side is optically accessible through the window. A second chip can be bonded to the backside of the first chip, with the second chip being wirebonded to the second level of the bi-level package. The result is a compact, low-profile package, having an integral window that can be hermetically-sealed.

  20. Building America Webinar: Low-E Storms: The Next Big Thing in Window Retrofits

    Broader source: Energy.gov [DOE]

    Until recently, energy-efficient window retrofit options have largely been limited to repair or replacement; leaving the homeowner to decide between affordability and deeper energy savings.  A new...

  1. Electrochromism vs. the Bugs:DevelopingWO3 Thin Film Windows toControl

    Office of Scientific and Technical Information (OSTI)

    Photoactive Biological Systems. (Conference) | SciTech Connect Conference: Electrochromism vs. the Bugs:DevelopingWO3 Thin Film Windows toControl Photoactive Biological Systems. Citation Details In-Document Search Title: Electrochromism vs. the Bugs:DevelopingWO3 Thin Film Windows toControl Photoactive Biological Systems. Abstract not provided. Authors: Small, Leo J ; Spoerke, Erik David ; Wheeler, David Roger ; Wolf, Steven ; Vandelinder, Virginia Starke ; Bachand, George David ;

  2. Evaluation of control strategies for different smart window combinations using computer simulations

    SciTech Connect (OSTI)

    Jonsson, Andreas; Roos, Arne

    2010-01-15

    Several studies have shown that the use of switchable windows could lower the energy consumption of buildings. Since the main function of windows is to provide daylight and visual contact with the external world, high visible transmittance is needed. From an energy perspective it is always best to have the windows in their low-transparent state whenever there are cooling needs, but this is generally not preferable from a daylight and visual contact point of view. Therefore a control system, which can be based on user presence, is needed in connection with switchable windows. In this study the heating and cooling needs of the building, using different control mechanisms were evaluated. This was done for different locations and for different combinations of switchable windows, using electrochromic glazing in combination with either low-e or solar control glazing. Four control mechanisms were investigated; one that only optimizes the window to lower the need for heating and cooling, one that assumes that the office is in use during the daytime, one based on user presence and one limiting the perpendicular component of the incident solar irradiation to avoid glare and too strong daylight. The control mechanisms were compared using computer simulations. A simplified approach based on the balance temperature concept was used instead of performing complete building simulations. The results show that an occupancy-based control system is clearly beneficial and also that the best way to combine the panes in the switchable window differs depending on the balance temperature of the building and on the climate. It is also shown that it can be beneficial to have different window combinations for different orientations. (author)

  3. Dynamic compression of synthetic diamond windows (final report for LDRD project 93531).

    SciTech Connect (OSTI)

    Dolan, Daniel H.,

    2008-09-01

    Diamond is an attractive dynamic compression window for many reasons: high elastic limit,large mechanical impedance, and broad transparency range. Natural diamonds, however, aretoo expensive to be used in destructive experiments. Chemical vapor deposition techniquesare now able to produce large single-crystal windows, opening up many potential dynamiccompression applications. This project studied the behavior of synthetic diamond undershock wave compression. The results suggest that synthetic diamond could be a usefulwindow in this field, though complete characterization proved elusive.3

  4. Evaluation of Low-E Storm Windows in the PNNL Lab Homes

    SciTech Connect (OSTI)

    Knox, Jake R.; Widder, Sarah H.

    2014-05-31

    This study examines the performance of exterior and interior low-e storm panels with a controlled whole home experimental design using PNNL's Lab Homes. Summing the estimated annual average heating and cooling savings, the installation of low-e storm panels resulted in approximately 10% annual energy savings. The results of the experiment will be used to determine and validate performance of low-e storm windows over double pane clear glass windows in a whole home setting.

  5. Solar Energy Windows and Smart IR Switchable Building Technologies

    SciTech Connect (OSTI)

    McCarny, James; Kornish, Brian

    2011-09-30

    The three building envelope functions with the largest impact on the energy usage are illumination, energy flux and energy production. In general, these three functions are addressed separately in the building design. A step change toward a zero-energy building can be achieved with a glazing system that combines these three functions and their control into a single unit. In particular, significant value could be realized if illumination into the building is dynamically controlled such that it occurs during periods of low load on the grid (e.g., morning) to augment illumination supplied by interior lights and then to have that same light diverted to PV energy production and the thermal energy rejected during periods of high load on the grid. The objective of this project is to investigate the feasibility of a glazing unit design that integrates these three key functions (illumination and energy flux control, and power production) into a single module.

  6. Thermal Control & System Integration

    Broader source: Energy.gov [DOE]

    The thermal control and system integration activity focuses on issues such as the integration of motor and power control technologies and the development of advanced thermal control technologies....

  7. Dynamic gating window for compensation of baseline shift in respiratory-gated radiation therapy

    SciTech Connect (OSTI)

    Pepin, Eric W.; Wu Huanmei; Shirato, Hiroki

    2011-04-15

    Purpose: To analyze and evaluate the necessity and use of dynamic gating techniques for compensation of baseline shift during respiratory-gated radiation therapy of lung tumors. Methods: Motion tracking data from 30 lung tumors over 592 treatment fractions were analyzed for baseline shift. The finite state model (FSM) was used to identify the end-of-exhale (EOE) breathing phase throughout each treatment fraction. Using duty cycle as an evaluation metric, several methods of end-of-exhale dynamic gating were compared: An a posteriori ideal gating window, a predictive trend-line-based gating window, and a predictive weighted point-based gating window. These methods were evaluated for each of several gating window types: Superior/inferior (SI) gating, anterior/posterior beam, lateral beam, and 3D gating. Results: In the absence of dynamic gating techniques, SI gating gave a 39.6% duty cycle. The ideal SI gating window yielded a 41.5% duty cycle. The weight-based method of dynamic SI gating yielded a duty cycle of 36.2%. The trend-line-based method yielded a duty cycle of 34.0%. Conclusions: Dynamic gating was not broadly beneficial due to a breakdown of the FSM's ability to identify the EOE phase. When the EOE phase was well defined, dynamic gating showed an improvement over static-window gating.

  8. NON-INTRUSIVE SENSOR FOR GAS FILL VERIFICATION OF INSULATED GLASS WINDOWS

    SciTech Connect (OSTI)

    Andrew Freedman; Paul L. Kebabian; Richard R. Romano; James Woodroffe

    2003-10-01

    A sensor capable of measuring the amount of oxygen (an unwanted component that is only present because of improper filling or seal failure) within an argon-filled insulated glass window has been designed, built and successfully tested. It operates by using the optical absorption of oxygen in the atmospheric A-band centered at 762 nm. Light emitted by an argon-filled surface glow discharge lamp is Zeeman-tuned on and off an oxygen absorption line using an AC-modulated electromagnet. In the presence of oxygen, the change in the measured intensity of the lamp, obtained using standard demodulation techniques, is proportional to the oxygen column density. Measurements using an industry-standard insulated glass window indicate that the sensor can measure the amount of oxygen in a nominally argon-filled IG window (with a window gap of 10 mm) with a precision of 0.50% oxygen using a 16 second integration time. This level of precision is well within the limits required by the IG window manufacturing industry for proper monitoring of newly manufactured window units.

  9. Defining window-boundaries for genomic analyses using smoothing spline techniques

    SciTech Connect (OSTI)

    Beissinger, Timothy M.; Rosa, Guilherme J.M.; Kaeppler, Shawn M.; Gianola, Daniel; de Leon, Natalia

    2015-04-17

    High-density genomic data is often analyzed by combining information over windows of adjacent markers. Interpretation of data grouped in windows versus at individual locations may increase statistical power, simplify computation, reduce sampling noise, and reduce the total number of tests performed. However, use of adjacent marker information can result in over- or under-smoothing, undesirable window boundary specifications, or highly correlated test statistics. We introduce a method for defining windows based on statistically guided breakpoints in the data, as a foundation for the analysis of multiple adjacent data points. This method involves first fitting a cubic smoothing spline to the data and then identifying the inflection points of the fitted spline, which serve as the boundaries of adjacent windows. This technique does not require prior knowledge of linkage disequilibrium, and therefore can be applied to data collected from individual or pooled sequencing experiments. Moreover, in contrast to existing methods, an arbitrary choice of window size is not necessary, since these are determined empirically and allowed to vary along the genome.

  10. Apparatus and method for in-situ cleaning of resist outgassing windows

    DOE Patents [OSTI]

    Klebanoff, Leonard E.; Haney, Steven J.

    2001-01-01

    An apparatus and method for in-situ cleaning of resist outgassing windows. The apparatus includes a chamber located in a structure, with the chamber having an outgassing window to be cleaned positioned in alignment with a slot in the chamber, whereby radiation energy passes through the window, the chamber, and the slot onto a resist-coated wafer mounted in the structure. The chamber is connected to a gas supply and the structure is connected to a vacuum pump. Within the chamber are two cylindrical sector electrodes and a filament is electrically connected to one sector electrode and a power supply. In a first cleaning method the sector electrodes are maintained at the same voltage, the filament is unheated, the chamber is filled with argon (Ar) gas under pressure, and the window is maintained at a zero voltage, whereby Ar ions are accelerated onto the window surface, sputtering away carbon deposits that build up as a result of resist outgassing. A second cleaning method is similar except oxygen gas (O.sub.2) is admitted to the chamber instead of Ar. These two methods can be carried out during lithographic operation. A third method, carried out during a maintenance period, involves admitting CO.sub.2 into the chamber, heating the filament to a point of thermionic emission, the sector electrodes are at different voltages, excited CO.sub.2 gas molecules are created which impact the carbon contamination on the window, and gasify it, producing CO gaseous products that are pumped away.

  11. Integral window/photon beam position monitor and beam flux detectors for x-ray beams

    DOE Patents [OSTI]

    Shu, Deming; Kuzay, Tuncer M.

    1995-01-01

    A monitor/detector assembly in a synchrotron for either monitoring the position of a photon beam or detecting beam flux may additionally function as a vacuum barrier between the front end and downstream segment of the beamline in the synchrotron. A base flange of the monitor/detector assembly is formed of oxygen free copper with a central opening covered by a window foil that is fused thereon. The window foil is made of man-made materials, such as chemical vapor deposition diamond or cubic boron nitrate and in certain configurations includes a central opening through which the beams are transmitted. Sensors of low atomic number materials, such as aluminum or beryllium, are laid on the window foil. The configuration of the sensors on the window foil may be varied depending on the function to be performed. A contact plate of insulating material, such as aluminum oxide, is secured to the base flange and is thereby clamped against the sensor on the window foil. The sensor is coupled to external electronic signal processing devices via a gold or silver lead printed onto the contact plate and a copper post screw or alternatively via a copper screw and a copper spring that can be inserted through the contact plate and coupled to the sensors. In an alternate embodiment of the monitor/detector assembly, the sensors are sandwiched between the window foil of chemical vapor deposition diamond or cubic boron nitrate and a front foil made of similar material.

  12. Defining window-boundaries for genomic analyses using smoothing spline techniques

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

    Beissinger, Timothy M.; Rosa, Guilherme J.M.; Kaeppler, Shawn M.; Gianola, Daniel; de Leon, Natalia

    2015-04-17

    High-density genomic data is often analyzed by combining information over windows of adjacent markers. Interpretation of data grouped in windows versus at individual locations may increase statistical power, simplify computation, reduce sampling noise, and reduce the total number of tests performed. However, use of adjacent marker information can result in over- or under-smoothing, undesirable window boundary specifications, or highly correlated test statistics. We introduce a method for defining windows based on statistically guided breakpoints in the data, as a foundation for the analysis of multiple adjacent data points. This method involves first fitting a cubic smoothing spline to the datamore » and then identifying the inflection points of the fitted spline, which serve as the boundaries of adjacent windows. This technique does not require prior knowledge of linkage disequilibrium, and therefore can be applied to data collected from individual or pooled sequencing experiments. Moreover, in contrast to existing methods, an arbitrary choice of window size is not necessary, since these are determined empirically and allowed to vary along the genome.« less

  13. Mobile Alternative Fueling Station Locator

    SciTech Connect (OSTI)

    Not Available

    2009-04-01

    The Department of Energy's Alternative Fueling Station Locator is available on-the-go via cell phones, BlackBerrys, or other personal handheld devices. The mobile locator allows users to find the five closest biodiesel, electricity, E85, hydrogen, natural gas, and propane fueling sites using Google technology.

  14. NERSC Releases Mobile Apps to Users

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

    Releases Mobile Apps to Users NERSC Releases Mobile Apps to Users Job Status, MOTD and Pilot of VASP Submission Available with More to Come April 23, 2012 In an effort to make...

  15. Guarded Motion for Mobile Robots

    Energy Science and Technology Software Center (OSTI)

    2005-03-30

    The Idaho National Laboratory (INL) has created codes that ensure that a robot will come to a stop at a precise, specified distance from any obstacle regardless of the robot's initial speed, its physical characteristics, and the responsiveness of the low-level motor control schema. This Guarded Motion for Mobile Robots system iteratively adjusts the robot's action in response to information about the robot's environment.

  16. Savings from energy efficient windows: Current and future savings from new fenestration technologies in the residential market

    SciTech Connect (OSTI)

    Frost, K.; Arasteh, D.; Eto, J.

    1993-04-01

    Heating and cooling energy lost through windows in the residential sector (estimated at two-thirds of the energy lost through windows in all sectors) currently accounts for 3 percent (or 2.8 quads) of total US energy use, costing over $26 billion annually in energy bills. Installation of energy-efficient windows is acting to reduce the amount of energy lost per unit window area. Installation of more energy efficient windows since 1970 has resulted in an annual savings of approximately 0.6 quads. If all windows utilized existing cost effective energy conserving technologies, then residential window energy losses would amount to less than 0.8 quads, directly saving $18 billion per year in avoided energy costs. The nationwide installation of windows that are now being developed could actually turn this energy loss into a net energy gain. Considering only natural replacement of windows and new construction, appropriate fenestration policies could help realize this potential by reducing annual residential window energy losses to 2.2 quids by the year 2012, despite a growing housing stock.

  17. ARM - ARM Mobile Facility 1 Article

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

    CenterARM Mobile Facility 1ARM Mobile Facility 1 Article Media Contact Hanna Goss hanna-dot-goss-at-pnnl-dot-gov @armnewsteam Field Notes Blog Topics Field Notes110 AGU 3 AMIE 10 ARM Aerial Facility 2 ARM Mobile Facility 1 6 ARM Mobile Facility 2 47 ARM Mobile Facility 3 1 BAECC 1 BBOP 4 ENA 1 GOAMAZON 7 HI-SCALE 3 MAGIC 15 MC3E 17 PECAN 3 SGP 7 STORMVEX 29 TCAP 3 Search News Search Blog News Center All Categories What's this? Social Media Guidance News Center All Categories Features and

  18. Testing thermal gradient driving force for grain boundary migration using molecular dynamics simulations

    SciTech Connect (OSTI)

    Bai, Xian-Ming; Zhang, Yongfeng; Tonks, Michael R.

    2015-02-01

    Strong thermal gradients in low-thermal-conductivity ceramics may drive extended defects, such as grain boundaries and voids, to migrate in preferential directions. In this work, molecular dynamics simulations are conducted to study thermal gradient driven grain boundary migration and to verify a previously proposed thermal gradient driving force equation, using uranium dioxide as a model system. It is found that a thermal gradient drives grain boundaries to migrate up the gradient and the migration velocity increases under a constant gradient owing to the increase in mobility with temperature. Different grain boundaries migrate at very different rates due to their different intrinsic mobilities. The extracted mobilities from the thermal gradient driven simulations are compared with those calculated from two other well-established methods and good agreement between the three different methods is found, demonstrating that the theoretical equation of the thermal gradient driving force is valid, although a correction of one input parameter should be made. The discrepancy in the grain boundary mobilities between modeling and experiments is also discussed.

  19. Numerical simulation study on fluid dynamics of plasma window using argon

    SciTech Connect (OSTI)

    Huang, S.; Zhu, K.; Shi, B. L.; Lu, Y. R.; Hershcovitch, A.; Yang, L.; Zhang, X. Y.; Wei, G. D.

    2013-07-15

    In this paper, a numerical 2D FLUENT-based magneto-hydrodynamic model has been developed to investigate the arc and flow field of plasma window, which is used as a windowless vacuum sealing device. The gas inlet, arc creation-developing and plasma expansion segments are all incorporated together in the integral model. An axis-symmetry cathode structure (hollow cathode) is used in the model. Current distribution of the arc is presented and discussed. The temperature, velocity, and pressure field are presented to show the physical mechanisms for the high pressure gap within the plasma window. Flow acceleration and viscosity effect are concluded as the main reasons for the pressure drop. The result for the pressure distribution in the cylindrical tube section has a good agreement with the analytical model. The validation for the sealing ability of plasma window is verified.

  20. Comparison of the Window-Frame RHIC-abort kicker with C-type Kicker

    SciTech Connect (OSTI)

    Tsoupas, N.; Hahn, H.; Meng, W.; Severance, Michael; McMahan, Brandon

    2014-08-26

    The high intensity proton bunches (~2.5x1011 p/bunch ) circulating in RHIC increase the temperature of the ferrite-made RHIC-abort-kickers above the Curie point; as a result, the kickers cannot provide the required field to abort the beam at the beam dump. A team of experts in the CAD department worked on modifying the design of the window-frame RHIC-abort kicker to minimize the hysteresis losses responsible for the increase of the ferrite’s temperature. In this technical note we report some results from the study of two possible modifications of the window-frame RHIC-abort kicker, and we compare these results with those of a propose C-type RHIC-abort kicker. We also include an Appendix where we describe a method which may further reduce the hysteresis losses of the window-frame kicker.

  1. Energy Savings of Low-E Storm Windows and Panels across US Climate Zones

    SciTech Connect (OSTI)

    Culp, Thomas D.; Cort, Katherine A.

    2015-10-01

    This report builds off of previous modeling work related to low-e storm windows used to create a "Database of U.S. Climate-Based Analysis for Low-E Storm Windows." This work updates similar studies using new fuel costs and examining the separate contributions of reduced air leakage and reduced coefficients of overall heat transfer and solar heat gain. In this report we examine the energy savings and cost effectiveness of low-E storm windows in residential homes across a broad range of U.S. climates, excluding the impact from infiltration reductions, which tend to vary using the National Energy Audit Tool (NEAT) and RESFEN model calculations. This report includes a summary of the results, NEAT and RESFEN background, methodology, and input assumptions, and an appendix with detailed results and assumptions by climate zone.

  2. HEATS: Thermal Energy Storage

    SciTech Connect (OSTI)

    2012-01-01

    HEATS Project: The 15 projects that make up ARPA-Es HEATS program, short for High Energy Advanced Thermal Storage, seek to develop revolutionary, cost-effective ways to store thermal energy. HEATS focuses on 3 specific areas: 1) developing high-temperature solar thermal energy storage capable of cost-effectively delivering electricity around the clock and thermal energy storage for nuclear power plants capable of cost-effectively meeting peak demand, 2) creating synthetic fuel efficiently from sunlight by converting sunlight into heat, and 3) using thermal energy storage to improve the driving range of electric vehicles (EVs) and also enable thermal management of internal combustion engine vehicles.

  3. Thermal insulation for Buildings. September 1982-September 1988 (Citations from the COMPENDEX data base). Report for September 1982-September 1988

    SciTech Connect (OSTI)

    Not Available

    1988-10-01

    This bibliography contains citations concerning materials used for the thermal insulation of buildings. Consumer acceptance of materials and weatherproofing options are included. Insulation in new and retrofitted buildings is discussed. Residential buildings, earth sheltered structures, greenhouses, and animal houses are among the structures studied. Infrared thermal sensing of heat loss, insulation placement, multilayer partition walls, and insulating windows are briefly considered. (This updated bibliography contains 244 citations, 92 of which are new entries to the previous edition.)

  4. Accessing a growth window for SrVO3 thin films (Journal Article) | SciTech

    Office of Scientific and Technical Information (OSTI)

    Connect Accessing a growth window for SrVO3 thin films Citation Details In-Document Search This content will become publicly available on October 6, 2016 Title: Accessing a growth window for SrVO3 thin films Authors: Brahlek, Matthew [1] ; Zhang, Lei [1] Search SciTech Connect for author "Zhang, Lei" Search SciTech Connect for ORCID "0000000215598469" Search orcid.org for ORCID "0000000215598469" ; Eaton, Craig [1] ; Zhang, Hai-Tian [1] Search SciTech Connect

  5. Savings Project: How to Weatherstrip Double-Hung (or Sash) Windows |

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

    Department of Energy to Weatherstrip Double-Hung (or Sash) Windows Savings Project: How to Weatherstrip Double-Hung (or Sash) Windows Addthis Project Level Easy Energy Savings 5 - 10% Time to Complete 1 hour Overall Cost $5 - $10 Look for air leaks in these common places in your home. | Photo courtesy of U.S. EPA. Look for air leaks in these common places in your home. | Photo courtesy of U.S. EPA. You can use weatherstripping in your home to seal air leaks around movable joints, such as

  6. Berkeley Lab Scientists Developing Paint-on Coating for Energy Efficient Windows

    Broader source: Energy.gov [DOE]

    It’s estimated that 10 percent of all the energy used in buildings in the U.S. can be attributed to window performance, costing building owners about $50 billion annually, yet the high cost of replacing windows or retrofitting them with an energy efficient coating is a major deterrent. U.S. Dept. of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) researchers are seeking to address this problem with creative chemistry—a polymer heat-reflective coating that can be painted on at one-tenth the cost.

  7. Database of Low-e Storm Window Energy Performance across U.S. Climate Zones

    SciTech Connect (OSTI)

    Culp, Thomas D.; Cort, Katherine A.

    2014-09-04

    This is an update of a report that describes process, assumptions, and modeling results produced Create a Database of U.S. Climate-Based Analysis for Low-E Storm Windows. The scope of the overall effort is to develop a database of energy savings and cost effectiveness of low-E storm windows in residential homes across a broad range of U.S. climates using the National Energy Audit Tool (NEAT) and RESFEN model calculations. This report includes a summary of the results, NEAT and RESFEN background, methodology, and input assumptions, and an appendix with detailed results and assumptions by cliamte zone.

  8. Text-Alternative Version of Building America Webinar: Low-e Storms: The Next "Big Thing" in Window Retrofits

    Broader source: Energy.gov [DOE]

    Low-e Storms:  The Next “Big Thing” in Window RetrofitsOfficial Webinar Transcript (September 9, 2014)

  9. Thermal Energy Storage

    SciTech Connect (OSTI)

    Rutberg, Michael; Hastbacka, Mildred; Cooperman, Alissa; Bouza, Antonio

    2013-06-05

    The article discusses thermal energy storage technologies. This article addresses benefits of TES at both the building site and the electricity generation source. The energy savings and market potential of thermal energy store are reviewed as well.

  10. Charged particle mobility refrigerant analyzer

    DOE Patents [OSTI]

    Allman, S.L.; Chunghsuan Chen; Chen, F.C.

    1993-02-02

    A method for analyzing a gaseous electronegative species comprises the steps of providing an analysis chamber; providing an electric field of known potential within the analysis chamber; admitting into the analysis chamber a gaseous sample containing the gaseous electronegative species; providing a pulse of free electrons within the electric field so that the pulse of free electrons interacts with the gaseous electronegative species so that a swarm of electrically charged particles is produced within the electric field; and, measuring the mobility of the electrically charged particles within the electric field.

  11. Mechanical accessories for mobile teleoperators

    SciTech Connect (OSTI)

    Feldman, M.J.; Herndon, J.N.

    1985-01-01

    The choice of optimum mechanical accessories for mobile teleoperators involves matching the criteria for emergency response with the available technology. This paper presents a general background to teleoperations, a potpourri of the manipulator systems available, and an argument for force reflecting manipulation. The theme presented is that the accomplishment of humanlike endeavors in hostile environments will be most successful when man model capabilities are utilized. The application of recent electronic technology to manipulator development has made new tools available to be applied to emergency response activities. The development activities described are products of the Consolidated Fuel Reprocessing Program at the Oak Ridge National Laboratory. 13 refs., 7 figs.

  12. thermal energy power conversion

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

    National Solar Thermal Test Facility Nuclear ... Climate & Earth Systems Climate Measurement & Modeling ... Tribal Energy Program Intellectual Property Current EC ...

  13. Thermal neutron detection system

    DOE Patents [OSTI]

    Peurrung, Anthony J. (Richland, WA); Stromswold, David C. (West Richland, WA)

    2000-01-01

    According to the present invention, a system for measuring a thermal neutron emission from a neutron source, has a reflector/moderator proximate the neutron source that reflects and moderates neutrons from the neutron source. The reflector/moderator further directs thermal neutrons toward an unmoderated thermal neutron detector.

  14. Thermal Performance Benchmarking (Presentation)

    SciTech Connect (OSTI)

    Moreno, G.

    2014-11-01

    This project will benchmark the thermal characteristics of automotive power electronics and electric motor thermal management systems. Recent vehicle systems will be benchmarked to establish baseline metrics, evaluate advantages and disadvantages of different thermal management systems, and identify areas of improvement to advance the state-of-the-art.

  15. NREL: Transportation Research - Sustainable Mobility Initiative

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

    Mobility Initiative Graphic of four concentric circles starting with the traveler and branching out to encompass the vehicle, transport system, and built environment. NREL's Sustainable Mobility Initiative approaches sustainable transportation as a network of travelers, services, and environments-rather than just vehicles and roads-using connectivity and automation to optimize mobility and significantly reduce related energy consumption. This concept of an intelligent, integrated, and dynamic

  16. Computationally Enhanced Mobility | Argonne National Laboratory

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

    Computationally Enhanced Mobility Argonne's new integrated transportation modeling ecosystem provides the unprecedented ability to explore the widespread real-world impact of intelligent transportation systems on mobility, energy and the environment. Argonne's new integrated transportation modeling ecosystem provides the unprecedented ability to explore the widespread real-world impact of intelligent transportation systems on mobility, energy and the environment. The U.S. Department of Energy's

  17. Clean Mobile AG | Open Energy Information

    Open Energy Info (EERE)

    AG Place: Munich, Bavaria, Germany Sector: Vehicles Product: Manufacturer of fuel cell-powered drives for small vehicles. References: Clean Mobile AG1 This article is a...

  18. Heavy Mobile Equipment Mechanic (1 Mechanic Shop)

    Broader source: Energy.gov [DOE]

    A successful candidate will perform preventative, predictive, and corrective maintenance on Bonneville Power Administration (BPA's) light and heavy mobile equipment in maintenance and filed...

  19. Running Greener: E-Mobility at SAP

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

    CO 2 neutral Reduce consumption of fossil fuels and noise Environmental Mobility Unique battery subsidy as benefit Enjoy free charging exclusively at SAP's charging spots...

  20. Mobile Power Solutions | Open Energy Information

    Open Energy Info (EERE)

    laboratory focused on United NationsDepartment of Transportation compliance and battery performance testing. References: Mobile Power Solutions1 This article is a stub....

  1. Heavy Mobile Equipment Mechanic (One Mechanic Shop)

    Broader source: Energy.gov [DOE]

    Join the Bonneville Power Administration (BPA) for a challenging and rewarding career, while working, living, and playing in the Pacific Northwest. The Heavy Mobile Equipment Mechanic (One Mechanic...

  2. Scanning Mobility Particle Spectrometer Instrument Handbook

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

    ... Charged particles are classified according to their electrical mobility, using a ... studies, smog chamber evaluations, engine exhaust and combustion studies, materials ...

  3. Mobile Business Innovation Center | Open Energy Information

    Open Energy Info (EERE)

    Innovation Center Jump to: navigation, search Name: Mobile Business Innovation Center Place: United States Product: Government & NGO ( Government Public sector ) References:...

  4. Mobile Energy Products Inc | Open Energy Information

    Open Energy Info (EERE)

    Name: Mobile Energy Products Inc Place: Colorado Springs, Colorado Sector: Hydro, Hydrogen Product: Manufacturing subsidiary, which produces nickel sintered plaque for...

  5. Public Transport: Moving towards Sustainable Mobility | Open...

    Open Energy Info (EERE)

    to: navigation, search Tool Summary LAUNCH TOOL Name: Public Transport: Moving towards Sustainable Mobility AgencyCompany Organization: United Nations Environment Programme...

  6. Sliding coherence window technique for hierarchical detection of continuous gravitational waves

    SciTech Connect (OSTI)

    Pletsch, Holger J.

    2011-06-15

    A novel hierarchical search technique is presented for all-sky surveys for continuous gravitational-wave sources, such as rapidly spinning nonaxisymmetric neutron stars. Analyzing yearlong detector data sets over realistic ranges of parameter space using fully coherent matched-filtering is computationally prohibitive. Thus more efficient, so-called hierarchical techniques are essential. Traditionally, the standard hierarchical approach consists of dividing the data into nonoverlapping segments of which each is coherently analyzed, and subsequently the matched-filter outputs from all segments are combined incoherently. The present work proposes to break the data into subsegments shorter than the desired maximum coherence time span (size of the coherence window). Then matched-filter outputs from the different subsegments are efficiently combined by sliding the coherence window in time: Subsegments whose timestamps are closer than coherence window size are combined coherently, otherwise incoherently. Compared to the standard scheme at the same coherence time baseline, data sets longer by about 50-100% would have to be analyzed to achieve the same search sensitivity as with the sliding coherence window approach. Numerical simulations attest to the analytically estimated improvement.

  7. T-601: Windows Kernel win32k.sys Lets Local Users Gain Elevated Privileges

    Broader source: Energy.gov [DOE]

    Multiple vulnerabilities were reported in the Windows Kernel. A local user can obtain elevated privileges on the target system. A local user can trigger a use-after free or null pointer dereference to execute arbitrary commands on the target system with kernel level privileges.

  8. Plan averaging for multicriteria navigation of sliding window IMRT and VMAT

    SciTech Connect (OSTI)

    Craft, David Papp, Dávid; Unkelbach, Jan

    2014-02-15

    Purpose: To describe a method for combining sliding window plans [intensity modulated radiation therapy (IMRT) or volumetric modulated arc therapy (VMAT)] for use in treatment plan averaging, which is needed for Pareto surface navigation based multicriteria treatment planning. Methods: The authors show that by taking an appropriately defined average of leaf trajectories of sliding window plans, the authors obtain a sliding window plan whose fluence map is the exact average of the fluence maps corresponding to the initial plans. In the case of static-beam IMRT, this also implies that the dose distribution of the averaged plan is the exact dosimetric average of the initial plans. In VMAT delivery, the dose distribution of the averaged plan is a close approximation of the dosimetric average of the initial plans. Results: The authors demonstrate the method on three Pareto optimal VMAT plans created for a demanding paraspinal case, where the tumor surrounds the spinal cord. The results show that the leaf averaged plans yield dose distributions that approximate the dosimetric averages of the precomputed Pareto optimal plans well. Conclusions: The proposed method enables the navigation of deliverable Pareto optimal plans directly, i.e., interactive multicriteria exploration of deliverable sliding window IMRT and VMAT plans, eliminating the need for a sequencing step after navigation and hence the dose degradation that is caused by such a sequencing step.

  9. Low-resistivity photon-transparent window attached to photo-sensitive silicon detector

    DOE Patents [OSTI]

    Holland, Stephen Edward

    2000-02-15

    The invention comprises a combination of a low resistivity, or electrically conducting, silicon layer that is transparent to long or short wavelength photons and is attached to the backside of a photon-sensitive layer of silicon, such as a silicon wafer or chip. The window is applied to photon sensitive silicon devices such as photodiodes, charge-coupled devices, active pixel sensors, low-energy x-ray sensors and other radiation detectors. The silicon window is applied to the back side of a photosensitive silicon wafer or chip so that photons can illuminate the device from the backside without interference from the circuit printed on the frontside. A voltage sufficient to fully deplete the high-resistivity photosensitive silicon volume of charge carriers is applied between the low-resistivity back window and the front, patterned, side of the device. This allows photon-induced charge created at the backside to reach the front side of the device and to be processed by any circuitry attached to the front side. Using the inventive combination, the photon sensitive silicon layer does not need to be thinned beyond standard fabrication methods in order to achieve full charge-depletion in the silicon volume. In one embodiment, the inventive backside window is applied to high resistivity silicon to allow backside illumination while maintaining charge isolation in CCD pixels.

  10. Thermal Effusivity Tomography from Pulsed Thermal Imaging

    Energy Science and Technology Software Center (OSTI)

    2006-12-01

    The software program generates 3D volume distribution of thermal effusivity within a test material from one-sided pulsed thermal imaging data. Thsi is the first software capable of accurate, fast and automated thermal tomographic imaging of inhomogeneous materials to produce 3D images similar to those obtained from 3D X-ray CT (all previous thermal-imaging software can only produce 2D results). Because thermal effusivity is an intrisic material property that is related to material constituent, density, conductivity, etc.,more » quantitative imaging of effusivity allowed direct visualization of material's internal constituent/structure and damage distributions, thereby potentially leading to quantitative prediction of other material properties such as strength. I can be therefre be used for 3D imaging of material structure in fundamental material studies, nondestructive characterization of defects/flaws in structural engineering components, health monitoring of material damage and degradation during service, and medical imaging and diagnostics. This technology is one-sided, non contact and sensitive to material's thermal property and discontinuity. One major advantage of this tomographic technology over x-ray CT and ultrasounds is its natural efficiency for 3D imaging of the volume under a large surface area. This software is implemented with a method for thermal computed tomography of thermal effusivity from one-sided pulsed thermal imaging (or thermography) data. The method is based on several solutions of the governing heat transfer equation under pulsed thermography test condition. In particular, it consists of three components. 1) It utilized the thermal effusivity as the imaging parameter to construct the 3D image. 2) It established a relationship between the space (depth) and the time, because thermography data are in the time domain. 3) It incorporated a deconvolution algorithm to solve the depth porfile of the material thermal effusivity from the measured (temporal) surface temperature data. The predicted effusivity is a direct function of depth, not an average or convolved parameter, so it is an accurate (and more sensitive) representation of local property along depth.« less

  11. Thermal Effusivity Tomography from Pulsed Thermal Imaging

    Energy Science and Technology Software Center (OSTI)

    2008-11-05

    The software program generates 3D volume distribution of thermal effusivity within a test material from one—sided pulsed thermal imaging data. Thsi is the first software capable of accurate, fast and automated thermal tomographic imaging of inhomogeneoirs materials to produce 3D images similar to those obtained from 3D X—ray CT (all previous thepnal—imaging software can only produce 20 results) . Because thermal effusivity is an Intrisic material property that is related to material constituent, density, conductivity,more » etc., quantitative imaging of eftusivity allowed direct visualization of material’s internal constituent/structure and damage distributions, thereby potentially leading to quantitative prediction of other material properties such as strength. I can be therefre be used for 3D imaging of material structure in fundamental material studies, nondestructive characterization of defects/flaws in structural engineering components, health monitoring of material damage and degradation during service, and medical imaging and diagnostics. This technology is one—sided, non contact and sensitive to material’s thermal property and discontinuity. One major advantage of this tomographic technology over x-ray CT and ultrasounds is its natural efficiency for 3D imaging of the volume under a large surface area. This software is implemented with a method for thermal computed tomography of thermal effusivity from one—sided pulsed thermal imaging (or thermography) data. The method is based on several solutions of the governing heat transfer equation under pulsed thermography test condition. In particular, it consists of three components. 1) It utilized the thermal effusivity as the imaging parameter to construct the 3D image. 2) It established a relationship between the space (depth) and the time, because thermography data are in the time domain. 3) It incorporated a deconvolution algorithm to solve the depth porfile of the material thermal effusivity from the measured (temporal) surface temperature data. The predicted effusivity is a direct function of depth, not an average or convolved parameter, so it is an accurate (and more sensitive) representation of local property along depth.« less

  12. Ion mobility analysis of lipoproteins

    DOE Patents [OSTI]

    Benner, W. Henry; Krauss, Ronald M.; Blanche, Patricia J.

    2007-08-21

    A medical diagnostic method and instrumentation system for analyzing noncovalently bonded agglomerated biological particles is described. The method and system comprises: a method of preparation for the biological particles; an electrospray generator; an alpha particle radiation source; a differential mobility analyzer; a particle counter; and data acquisition and analysis means. The medical device is useful for the assessment of human diseases, such as cardiac disease risk and hyperlipidemia, by rapid quantitative analysis of lipoprotein fraction densities. Initially, purification procedures are described to reduce an initial blood sample to an analytical input to the instrument. The measured sizes from the analytical sample are correlated with densities, resulting in a spectrum of lipoprotein densities. The lipoprotein density distribution can then be used to characterize cardiac and other lipid-related health risks.

  13. Method and apparatus for removing and preventing window deposition during photochemical vapor deposition (photo-CVD) processes

    DOE Patents [OSTI]

    Tsuo, Simon; Langford, Alison A.

    1989-01-01

    Unwanted build-up of the film deposited on the transparent light-transmitting window of a photochemical vacuum deposition (photo-CVD) chamber is eliminated by flowing an etchant into the part of the photolysis region in the chamber immediately adjacent the window and remote from the substrate and from the process gas inlet. The respective flows of the etchant and the process gas are balanced to confine the etchant reaction to the part of the photolysis region proximate to the window and remote from the substrate. The etchant is preferably one that etches film deposit on the window, does not etch or affect the window itself, and does not produce reaction by-products that are deleterious to either the desired film deposited on the substrate or to the photolysis reaction adjacent the substrate.

  14. Method and apparatus for removing and preventing window deposition during photochemical vapor deposition (photo-CVD) processes

    DOE Patents [OSTI]

    Tsuo, S.; Langford, A.A.

    1989-03-28

    Unwanted build-up of the film deposited on the transparent light-transmitting window of a photochemical vacuum deposition (photo-CVD) chamber is eliminated by flowing an etchant into the part of the photolysis region in the chamber immediately adjacent the window and remote from the substrate and from the process gas inlet. The respective flows of the etchant and the process gas are balanced to confine the etchant reaction to the part of the photolysis region proximate to the window and remote from the substrate. The etchant is preferably one that etches film deposit on the window, does not etch or affect the window itself, and does not produce reaction by-products that are deleterious to either the desired film deposited on the substrate or to the photolysis reaction adjacent the substrate. 3 figs.

  15. Mobilization of dust and exfoliation of erosion product films in tokamaks

    SciTech Connect (OSTI)

    Martynenko, Yu. V.; Nagel, M. Yu.

    2012-04-15

    The mobilization of dust (i.e., detachment and removal of dust grains from a substrate) and the exfoliation of a film of erosion products in tokamaks have been studied theoretically. The following mechanisms of dust mobilization have been taken into account: (i) sharp heating (thermal shock) as a result of, e.g., plasma disruption and edge instabilities; (ii) substrate vibrations; and (iii) gas and plasma flow (wind) action. The most effective mobilization takes place under the action of sharp heating. Power fluxes that are characteristic of edge instabilities can mobilize dust grains with dimensions within or even greater than 0.1-1 {mu}m. The velocities of detached grains reach {nu} {approx} 100 m/s for heavy grains and up to {nu} {approx} 300 m/s for the light ones. Conditions favoring the exfoliation of a film of erosion products are determined. It is shown that exfoliation under the action of edge instabilities can take place at a film thickness of h > 1 {mu}m. Under the action of thermal-shock-induced stresses, the exfoliated film flakes with a size ranging from fractions of a millimeter to several centimeters break into pieces.

  16. Sour gas dehydration in Mobile Bay

    SciTech Connect (OSTI)

    Betts, F.C. Jr.; Lay, A.G.

    1996-12-31

    An evaluation of Mobil`s different methods of sour gas development utilized offshore and processes selected are presented with the maintenance history. The conclusions are based on field data showing past performance with a correlation made for future development and the selection criteria for dehydration.

  17. Interdigitated Electrical Contacts for Low Electronic Mobility

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

    Semiconductor Photovoltaic Devices - Energy Innovation Portal Solar Photovoltaic Solar Photovoltaic Find More Like This Return to Search Interdigitated Electrical Contacts for Low Electronic Mobility Semiconductor Photovoltaic Devices Brookhaven National Laboratory Contact BNL About This Technology Technology Marketing Summary Structures useful for forming contacts to materials having low charge carrier mobility are described. Methods for their formation and use are also described. These

  18. Integrated solar thermal energy collector system

    SciTech Connect (OSTI)

    Garrison, J.D.

    1987-08-18

    A solar thermal collector system is described one of a class of devices which converts solar radiation into heat and transmits this heat to storage from whence it is utilized, comprising: an evacuated glass solar collector, the evacuated glass solar collector having a glass vacuum envelope, the upper portion of the glass vacuum envelope also serving as window to pass solar radiation, the evacuated glass solar collector having a multiplicity of substantially parallel linear adjacent concentrating troughs, each trough shaped and mirror surfaced so as concentrate solar radiation in the vacuum, the mirror surface inside the vacuum and the concentration approximately ideal, the multiplicity of substantially parallel linear adjacent troughs extending substantially over the entire length and width of the evacuated glass solar collector; a heat storage system, the heat storage system adjacent to the evacuated glass solar collector, the heat storage system having a heat storage tank which is thermally insulated, the heat storage tank containing a heat storage medium, and the heat storage system including means of removal of heat from the heat storage tank for utilization.

  19. Dynamic Analysis of Mobile Device Applications

    SciTech Connect (OSTI)

    Corey Thuen

    2013-01-01

    The On-Device Dynamic Analysis of Mobile Applications (ODAMA) project was started in an effort to protect mobile devices used in Industrial Control Systems (ICS) from cyber attack. Because mobile devices hide as much of the computer as possible, the users ability to assess the software running on their system is limited. The research team chose Googles Android platform for this initial research because it is open source and it would give us freedom in our approach, including the ability to modify the mobile devices operating system itself. The research team concluded that a Privileged Application was the right approach, and the result was ODAMA. This project is an important piece of the work to secure the expanding use of mobile devices with our nations critical infrastructure.

  20. Catalytic thermal barrier coatings

    DOE Patents [OSTI]

    Kulkarni, Anand A.; Campbell, Christian X.; Subramanian, Ramesh

    2009-06-02

    A catalyst element (30) for high temperature applications such as a gas turbine engine. The catalyst element includes a metal substrate such as a tube (32) having a layer of ceramic thermal barrier coating material (34) disposed on the substrate for thermally insulating the metal substrate from a high temperature fuel/air mixture. The ceramic thermal barrier coating material is formed of a crystal structure populated with base elements but with selected sites of the crystal structure being populated by substitute ions selected to allow the ceramic thermal barrier coating material to catalytically react the fuel-air mixture at a higher rate than would the base compound without the ionic substitutions. Precious metal crystallites may be disposed within the crystal structure to allow the ceramic thermal barrier coating material to catalytically react the fuel-air mixture at a lower light-off temperature than would the ceramic thermal barrier coating material without the precious metal crystallites.

  1. Scattering Solar Thermal Concentrators

    Office of Environmental Management (EM)

    sunshot DOEGO-102012-3669 * September 2012 MOTIVATION All thermal concentrating solar power (CSP) systems use solar tracking, which involves moving large mirror surfaces...

  2. Sandia Thermal Program

    Energy Science and Technology Software Center (OSTI)

    2005-11-23

    Thermal analysis in 1-D planar, cylindrical and spherical geometries using control volume finite element spatial discretization with 1st and 2nd order implicit time integrators.

  3. Battery Thermal Characterization

    SciTech Connect (OSTI)

    Saxon, Aron; Powell, Mitchell; Shi, Ying

    2015-06-09

    This presentation provides an update of NREL's battery thermal characterization efforts for the 2015 U.S. Department of Energy Annual Merit Reviews.

  4. Turbine Thermal Management

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

    Key Contacts Turbine Thermal Management The gas turbine is the workhorse of power generation, and technology ... could result in a 4 - 6 percent gain in overall system efficiency. ...

  5. Hard x-ray photoelectron spectroscopy using an environmental cell with silicon nitride membrane windows

    SciTech Connect (OSTI)

    Tsunemi, Eika; Watanabe, Yoshio; Oji, Hiroshi; Cui, Yi-Tao; Son, Jin-Young

    2015-06-21

    We applied hard x-ray photoelectron spectroscopy (HAXPES) to a sample under ambient pressure conditions using an environmental cell with an approximately 24 nm-thick SiN{sub x} membrane window. As a model chemical substance, europium (II) iodide (EuI{sub 2}) sealed in the cell with argon gas was investigated with HAXPES to identify the chemical species present inside the cell. The optical and morphological properties of the sample within the cell were measured with optical and fluorescent microscopy, scanning electron microscopy, cathodoluminescence, and energy dispersive x-ray spectrometry. We confirmed the effectiveness of the gas barrier properties of the cell with the SiN{sub x} window and demonstrated its applicability to various other optical and electron measurements as well as HAXPES.

  6. COMPUTER SIMULATIONS OF WAVEGUIDE WINDOW AND COUPLER IRIS FOR PRECISION MATCHING

    SciTech Connect (OSTI)

    Lee, Sung-Woo; Kang, Yoon W; Shin, Ki; Vassioutchenko, Alexandre V

    2011-01-01

    A tapered ridge waveguide iris input coupler and a waveguide ceramic disk windows are used on each of six drift tube linac (DTL) cavities in the Spallation Neutron Source (SNS). The coupler design employs rapidly tapered double ridge waveguide to reduce the cross section down to a smaller low impedance transmission line section that can couple to the DTL tank easily. The impedance matching is done by adjusting the dimensions of the thin slit aperture between the ridges that is the coupling element responsible for the power delivery to the cavity. Since the coupling is sensitive to the dimensional changes of the aperture, it requires careful tuning for precise matching. Accurate RF simulation using latest 3-D EM code is desirable to help the tuning for maintenance and spare manufacturing. Simulations are done for the complete system with the ceramic window and the coupling iris on the cavity to see mutual interaction between the components as a whole.

  7. The conformal window of deformed conformal field theories in the planar limit

    SciTech Connect (OSTI)

    Vecchi, Luca

    2010-08-15

    We discuss in the planar approximation the effect of double-trace deformations on conformal field theories. We show that this large class of models posses a conformal window describing a nontrivial flow between two fixed points of the renormalization group and reveal the presence of a resonance which we associate to the remnant of a dilaton pole. As the conformal window shrinks to zero measure, the theory undergoes a conformal phase transition separating a symmetric from a nonsymmetric phase. The recently conjectured strongly coupled branch of nonsupersymmetric, non-Abelian gauge theories with a large number of flavors is analyzed in light of these results, and a model for the strong branch is proposed. Some phenomenological implications in the context of unparticle physics are also emphasized.

  8. Renewable Electric Plant Information System user interface manual: Paradox 7 Runtime for Windows

    SciTech Connect (OSTI)

    1996-11-01

    The Renewable Electric Plant Information System (REPiS) is a comprehensive database with detailed information on grid-connected renewable electric plants in the US. The current version, REPiS3 beta, was developed in Paradox for Windows. The user interface (UI) was developed to facilitate easy access to information in the database, without the need to have, or know how to use, Paradox for Windows. The UI is designed to provide quick responses to commonly requested sorts of the database. A quick perusal of this manual will familiarize one with the functions of the UI and will make use of the system easier. There are six parts to this manual: (1) Quick Start: Instructions for Users Familiar with Database Applications; (2) Getting Started: The Installation Process; (3) Choosing the Appropriate Report; (4) Using the User Interface; (5) Troubleshooting; (6) Appendices A and B.

  9. Windows and Building Envelope Research and Development: A Roadmap for Emerging Technologies

    SciTech Connect (OSTI)

    none,

    2014-02-01

    This Building Technologies Office (BTO) Research and Development (R&D) Roadmap identifies priority windows and building envelope R&D areas of interest. Cost and performance targets are identified for each key R&D area. The roadmap describes the technical and market challenges to be overcome, R&D activities and milestones, key stakeholders, and potential energy savings that could result if cost and performance targets are met. Methods for improving technology performance and specific strategies for reducing installed costs and mitigating any other market barriers, which would increase the likelihood of mass-market technology adoption, are identified. This roadmap is a useful resource for public and private decision makers evaluating and pursuing high-impact R&D focused on advancing next-generation energy efficient windows and building envelope technologies.

  10. Note: In situ measurement of vacuum window birefringence by atomic spectroscopy

    SciTech Connect (OSTI)

    Steffen, Andreas; Alt, Wolfgang; Genske, Maximilian; Meschede, Dieter; Robens, Carsten; Alberti, Andrea

    2013-12-15

    We present an in situ method to measure the birefringence of a single vacuum window by means of microwave spectroscopy on an ensemble of cold atoms. Stress-induced birefringence can cause an ellipticity in the polarization of an initially linearly polarized laser beam. The amount of ellipticity can be reconstructed by measuring the differential vector light shift of an atomic hyperfine transition. Measuring the ellipticity as a function of the linear polarization angle allows us to infer the amount of birefringence Δn at the level of 10{sup −8} and identify the orientation of the optical axes. The key benefit of this method is the ability to separately characterize each vacuum window, allowing the birefringence to be precisely compensated in existing vacuum apparatuses.

  11. Whole house fenestration energy consumption as a function of variable window air leakage rates

    SciTech Connect (OSTI)

    Kehrli, D.

    1995-09-01

    Residential building energy consumption is dependent on many variables. The heat loss or gain attributable to fenestration products can be a significant portion of the whole building load. The fenestration industry is current developing and implementing new test methods and rating procedures to more accurately account for fenestration energy transfer. One of the tools being developed by the National Fenestration Rating Council (NFRC) is a PC-based program called Residential Fenestration (RESFEN) heating and cooling load use and costs. This paper will provide a review of the energy and cost impacts that variable air leakage rates of several types of window products can have on overall window energy usage as modeled in four typical building designs located in the US. The analysis was performed with the RESFEN software as part of an NFRC sensitivity study on this issue.

  12. Analytical cell decontamination and shielding window refurbishment. Final report, March 1984-March 1985

    SciTech Connect (OSTI)

    Smokowski, R.T.

    1985-12-01

    This is a report on the decontamination and refurbishment of five inactive contaminated analytical cells and six zinc bromide filled shielding windows. The analytical cells became contaminated during the nuclear fuel reprocessing carried out by Nuclear Fuel Services from 1966 to 1972. The decontamination and decommissioning (D and D) work was performed in these cells to make them useful as laboratories in support of the West Valley Demonstration Project. To accomplish this objective, unnecessary equipment was removed from these cells. Necessary equipment and the interior of each cell were decontaminated and repaired. The shielding windows, essentially tanks holding zinc bromide, were drained and disassembled. The deteriorated, opaque zinc bromide was refined to optical clarity and returned to the tanks. All wastes generated in this operation were characterized and disposed of properly. All the decontamination and refurbishment was accomplished within 13 months. The Analytical Hot Cell has been turned over to Analytical Chemistry for the performance high-level waste (HLW) characterization analysis.

  13. Through tubing window milling -- A cost effective method of casing exit

    SciTech Connect (OSTI)

    Blizzard, B.; Carter, T.; Roberts, J.

    1996-12-31

    Through tubing operations currently provide oilfield operators with an attractive method for significantly enhancing production at a relatively low cost. This paper will present a newly developed and innovative system for initiating a production casing sidetrack below the production tubing. The system uses coiled tubing technology and blends the special techniques of both drilling and window milling operations using coiled tubing. Development details emphasized will be the overall system design, performance criteria and equipment evaluation.

  14. Identifying and Resolving Issues in EnergyPlus and DOE-2 Window Heat Transfer Calculations

    SciTech Connect (OSTI)

    Booten, C.; Kruis, N.; Christensen, C.

    2012-08-01

    Issues in building energy software accuracy are often identified by comparative, analytical, and empirical testing as delineated in the BESTEST methodology. As described in this report, window-related discrepancies in heating energy predictions were identified through comparative testing of EnergyPlus and DOE-2. Multiple causes for discrepancies were identified, and software fixes are recommended to better align the models with the intended algorithms and underlying test data.

  15. The effect of periodic wavy profile on suppressing window multipactor under arbitrary electromagnetic mode

    SciTech Connect (OSTI)

    Chang, C.; Liu, Y. S.; Chen, C. H.; Guo, L. T.; Li, S.; Wu, X. L.; Verboncoeur, J.

    2015-01-05

    The three-dimensional periodic ripple profile with each unit of rotational symmetric surface is proposed to suppress multipactor for arbitrary electromagnetic mode with any polarization. The field distribution and multipactor electron dynamics on the wavy surface are studied to illustrate the multipactor inhibition mechanism. High power microwave experiment was conducted to demonstrate the effect of wavy surface on significantly improving the window power capacity.

  16. Variable pressure thermal insulating jacket

    DOE Patents [OSTI]

    Nelson, Paul A. (Wheaton, IL); Malecha, Richard F. (Naperville, IL); Chilenskas, Albert A. (Chicago, IL)

    1994-01-01

    A device for controlled insulation of a thermal device. 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 communcation 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.

  17. Variable pressure thermal insulating jacket

    DOE Patents [OSTI]

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

    1994-09-20

    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.

  18. DOE - Office of Legacy Management -- Mobil Oil Corp - VA 01

    Office of Legacy Management (LM)

    Mobil Oil Corp - VA 01 FUSRAP Considered Sites Site: Mobil Oil Corp. (VA.01 ) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: ...

  19. Mobile interfaces: Liquids as a perfect structural material for...

    Office of Scientific and Technical Information (OSTI)

    Mobile interfaces: Liquids as a perfect structural material for multifunctional, antifouling surfaces Title: Mobile interfaces: Liquids as a perfect structural material for ...

  20. Using Mobile Applications to Generate Customer Demand | Department...

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

    Using Mobile Applications to Generate Customer Demand Using Mobile Applications to Generate Customer Demand Better Buildings Residential Network Peer Exchange Call Series: Using...

  1. How Would You Use Your Mobile Device to Save Energy?

    Broader source: Energy.gov [DOE]

    More and more, people are using their phones and mobile devices to find information -- tell us how you would use your mobile device to save energy.

  2. Persu Mobility was Venture Vehicles Inc | Open Energy Information

    Open Energy Info (EERE)

    Persu Mobility was Venture Vehicles Inc Jump to: navigation, search Name: Persu Mobility (was Venture Vehicles Inc) Place: Los Angeles, California Zip: 90067 Product: Los Angeles...

  3. New Feedstocks and Replacement Fuels - Future Energy for Mobility...

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

    Fuels - Future Energy for Mobility New Feedstocks and Replacement Fuels - Future Energy for Mobility Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. ...

  4. Case Study: Mobile Photovoltaic System at Bechler Meadows Ranger...

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

    Mobile Photovoltaic System at Bechler Meadows Ranger Station, Yellowstone National Park Case Study: Mobile Photovoltaic System at Bechler Meadows Ranger Station, Yellowstone ...

  5. ARM Operations and Engineering Procedure Mobile Facility Site...

    Office of Scientific and Technical Information (OSTI)

    ARM Operations and Engineering Procedure Mobile Facility Site Startup Citation Details In-Document Search Title: ARM Operations and Engineering Procedure Mobile Facility Site Startup ...

  6. Fuel Economy.gov - Mobile | Open Energy Information

    Open Energy Info (EERE)

    Economy.gov - Mobile Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Fuel Economy.gov - Mobile AgencyCompany Organization: United States Department of Energy Sector:...

  7. Public Finance Mechanisms to Mobilize Investment in Climate Change...

    Open Energy Info (EERE)

    Mobilize Investment in Climate Change Mitigation Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Public Finance Mechanisms to Mobilize Investment in Climate Change...

  8. A mobile-agent based wireless sensing network for structural...

    Office of Scientific and Technical Information (OSTI)

    A mobile-agent based wireless sensing network for structural monitoring applications Citation Details In-Document Search Title: A mobile-agent based wireless sensing network for ...

  9. MHK Technologies/Mobil Stabilized Energy Conversion Platform...

    Open Energy Info (EERE)

    Mobil Stabilized Energy Conversion Platform < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Mobil Stabilized Energy Conversion Platform.jpg...

  10. The Fuel Cell Mobile Light Project - A DOE Market Transformation...

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

    Download the presentation slides from the Fuel Cell Technologies Program webinar, "Fuel Cell Mobile Lighting," held on November 13, 2012. PDF icon Fuel Cell Mobile Lighting Webinar ...

  11. Nanostructured electrochromic smart windows: traditional materials and NIR-selective plasmonic nanocrystals

    SciTech Connect (OSTI)

    Runnerstrom, EL; Llordes, A; Lounis, SD; Milliron, DJ

    2014-06-04

    Electrochromic devices, which dynamically change colour under applied potential, are widely studied for use in energy-efficient smart windows. To improve the viability of smart windows, many researchers are utilizing nanomaterials, which can provide electrochromic devices with improved colouration efficiencies, faster switching times, longer cycle lives, and potentially reduced costs. In an effort to demonstrate a new type of electrochromic device that goes beyond the capabilities of commonly used electrochromic materials, researchers have turned to plasmonic transparent conductive oxide (TCO) nanocrystals. Electrochemical injection of electrons into plasmonic TCO nanocrystal films induces a shift in the plasmon frequency and gives rise to the new functionality of selective optical modulation in the near-infrared region of the solar spectrum. These nanocrystals can be used as building blocks to enable creation of advanced electrochromic devices containing mesoporous electrodes or nanocrystal-in-glass composites. Such devices have been important in advancing the field towards achieving the ideal smart window with independent control over visible and NIR transmittance.

  12. Improved Power Conversion Efficiency of InP Solar Cells Using Organic Window Layers

    SciTech Connect (OSTI)

    Li, N; Lee, K.; Renshaw, C. K.; Xiao, X.; Forrest, Stephen R.

    2011-01-01

    We employ the organic semiconductor 3,4,9,10-perylene-tetracarboxylic-dianhydride (PTCDA) as a nanometer thick window layer for p-InP/indium tin oxide (ITO) Schottky barrierdiodesolar cells. The power conversion efficiency is enhanced compared to ITO/InP cells lacking the PTCDA window layer, primarily due to neutralizing InP surface state charges via hole injection from the PTCDA. This leads to an increased ITO/p-InP Schottky barrier height, and hence to an increased open circuit voltage. The power conversion efficiency of the cells increases from 13.2±0.5% for the ITO/InP cell to 15.4±0.4% for the ITO/4 nm PTCDA/p-InP cell under 1 sun, AM1.5G simulated solar illumination. The PTCDA window layer is also shown to contribute to the photocurrent by light absorption followed by exciton dissociation at the organic/inorganic semiconductor interface.

  13. Dye laser amplifier including an improved window configuration for its dye beam

    DOE Patents [OSTI]

    O'Neil, Richard W.; Davin, James M.

    1992-01-01

    A dye laser amplifier in which a continuously replenished supply of dye is excited with a first light beam in order to amplify the intensity of a second different light beam passing therethrough is disclosed herein. This amplifier includes a cell though which a continuous stream of the dye is caused to pass, and means for directing the first beam into the cell while the second beam is directed into and through the same cell. There is also disclosed herein a specific improvement to this amplifier which resides in the use of a pair of particularly configured windows through which the second beam passes along fixed paths as the second beam enters and exits the dye cell. Each of these windows has a relatively thick main section which is substantially larger in dimensions transverse to its beam path than the cross section of the second beam itself, whereby to add structural integrity to the overall window. At the same time, the latter includes a second section which is disposed entirely within the confines of the main section and through which the second beam is intended to pass in its entirety. This second section is made substantially thinner than the main section in order to reduce optical distortion as the second beam passes therethrough.

  14. Dye laser amplifier including an improved window configuration for its dye beam

    DOE Patents [OSTI]

    O'Neil, R.W.; Davin, J.M.

    1992-12-01

    A dye laser amplifier in which a continuously replenished supply of dye is excited with a first light beam in order to amplify the intensity of a second different light beam passing therethrough is disclosed herein. This amplifier includes a cell though which a continuous stream of the dye is caused to pass, and means for directing the first beam into the cell while the second beam is directed into and through the same cell. There is also disclosed herein a specific improvement to this amplifier which resides in the use of a pair of particularly configured windows through which the second beam passes along fixed paths as the second beam enters and exits the dye cell. Each of these windows has a relatively thick main section which is substantially larger in dimensions transverse to its beam path than the cross section of the second beam itself, whereby to add structural integrity to the overall window. At the same time, the latter includes a second section which is disposed entirely within the confines of the main section and through which the second beam is intended to pass in its entirety. This second section is made substantially thinner than the main section in order to reduce optical distortion as the second beam passes therethrough. 4 figs.

  15. Thermally actuated wedge block

    DOE Patents [OSTI]

    Queen, Jr., Charles C.

    1980-01-01

    This invention relates to an automatically-operating wedge block for maintaining intimate structural contact over wide temperature ranges, including cryogenic use. The wedging action depends on the relative thermal expansion of two materials having very different coefficients of thermal expansion. The wedge block expands in thickness when cooled to cryogenic temperatures and contracts in thickness when returned to room temperature.

  16. Thermal protection apparatus

    DOE Patents [OSTI]

    Bennett, G.A.; Elder, M.G.; Kemme, J.E.

    1984-03-20

    The disclosure is directed to an apparatus for thermally protecting sensitive components in tools used in a geothermal borehole. The apparatus comprises a Dewar within a housing. The Dewar contains heat pipes such as brass heat pipes for thermally conducting heat from heat sensitive components such as electronics to a heat sink such as ice.

  17. Thermal protection apparatus

    DOE Patents [OSTI]

    Bennett, Gloria A.; Elder, Michael G.; Kemme, Joseph E.

    1985-01-01

    An apparatus which thermally protects sensitive components in tools used in a geothermal borehole. The apparatus comprises a Dewar within a housing. The Dewar contains heat pipes such as brass heat pipes for thermally conducting heat from heat sensitive components to a heat sink such as ice.

  18. NERSC Releases Mobile Apps to Users

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

    Releases Mobile Apps to Users NERSC Releases Mobile Apps to Users Job Status, MOTD and Pilot of VASP Submission Available with More to Come April 23, 2012 In an effort to make NERSC resources more accessible to its users, the facility is rolling out a number of applications that allow researchers to access scientific data on their web browsers, tablets and smart phones. This month, NERSC announced two new applications now available to its users: The NERSC mobile user portal (http://m.nersc.gov)

  19. Tunable thermal link

    DOE Patents [OSTI]

    Chang, Chih-Wei; Majumdar, Arunava; Zettl, Alexander K.

    2014-07-15

    Disclosed is a device whereby the thermal conductance of a multiwalled nanostructure such as a multiwalled carbon nanotube (MWCNT) can be controllably and reversibly tuned by sliding one or more outer shells with respect to the inner core. As one example, the thermal conductance of an MWCNT dropped to 15% of the original value after extending the length of the MWCNT by 190 nm. The thermal conductivity returned when the tube was contracted. The device may comprise numbers of multiwalled nanotubes or other graphitic layers connected to a heat source and a heat drain and various means for tuning the overall thermal conductance for applications in structure heat management, heat flow in nanoscale or microscale devices and thermal logic devices.

  20. Solar thermal aircraft

    DOE Patents [OSTI]

    Bennett, Charles L.

    2007-09-18

    A solar thermal powered aircraft powered by heat energy from the sun. A heat engine, such as a Stirling engine, is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller. The heat engine has a thermal battery in thermal contact with it so that heat is supplied from the thermal battery. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

  1. Thermal treatment wall

    DOE Patents [OSTI]

    Aines, Roger D.; Newmark, Robin L.; Knauss, Kevin G.

    2000-01-01

    A thermal treatment wall emplaced to perform in-situ destruction of contaminants in groundwater. Thermal destruction of specific contaminants occurs by hydrous pyrolysis/oxidation at temperatures achievable by existing thermal remediation techniques (electrical heating or steam injection) in the presence of oxygen or soil mineral oxidants, such as MnO.sub.2. The thermal treatment wall can be installed in a variety of configurations depending on the specific objectives, and can be used for groundwater cleanup, wherein in-situ destruction of contaminants is carried out rather than extracting contaminated fluids to the surface, where they are to be cleaned. In addition, the thermal treatment wall can be used for both plume interdiction and near-wellhead in-situ groundwater treatment. Thus, this technique can be utilized for a variety of groundwater contamination problems.

  2. Analysis of Casimir forces with window functions: Kramers-Kronig general approach for real measured dielectric data

    SciTech Connect (OSTI)

    Shpak, O.; Palasantzas, G.

    2011-10-15

    In this work we describe how the window method, which has been used with ideal Kramers-Kroning (K-K) consistent dielectric functions, is affected by real optical data where some degree of K-K inconsistency is always present. Analysis using measured data of the frequency-dependent dielectric function for gold and phase-change materials shows that the window method can in some cases amplify the errors introduced in the calculation of the Casimir force due to K-K inconsistency instead of minimizing them. The latter indicates that caution is required for the proper choice of the window function for dielectric data analysis and Casmir force calculations.

  3. Empirical assessment of a prismatic daylight-redirecting window film in a full-scale office testbed

    SciTech Connect (OSTI)

    Thanachareonkit, Anothai; Lee, Eleanor S.; McNeil, Andrew

    2013-08-31

    Daylight redirecting systems with vertical windows have the potential to offset lighting energy use in deep perimeter zones. Microstructured prismatic window films can be manufactured using low-cost, roll-to-roll fabrication methods and adhered to the inside surface of existing windows as a retrofit measure or installed as a replacement insulating glass unit in the clerestory portion of the window wall. A clear film patterned with linear, 50-250 micrometer high, four-sided asymmetrical prisms was fabricated and installed in the south-facing, clerestory low-e, clear glazed windows of a full-scale testbed facility. Views through the film were distorted. The film was evaluated in a sunny climate over a two-year period to gauge daylighting and visual comfort performance. The daylighting aperture was small (window-towall ratio of 0.18) and the lower windows were blocked off to isolate the evaluation to the window film. Workplane illuminance measurements were made in the 4.6 m (15 ft) deep room furnished as a private office. Analysis of discomfort glare was conducted using high dynamic range imaging coupled with the evalglare software tool, which computes the daylight glare probability and other metrics used to evaluate visual discomfort. The window film was found to result in perceptible levels of discomfort glare on clear sunny days from the most conservative view point in the rear of the room looking toward the window. Daylight illuminance levels at the rear of the room were significantly increased above the reference window condition, which was defined as the same glazed clerestory window but with an interior Venetian blind (slat angle set to the cut-off angle), for the equinox to winter solstice period on clear sunny days. For partly cloudy and overcast sky conditions, daylight levels were improved slightly. To reduce glare, the daylighting film was coupled with a diffusing film in an insulating glazing unit. The diffusing film retained the directionality of the redirected light spreading it within a small range of outgoing angles. This solution was found to reduce glare to imperceptible levels while retaining for the most part the illuminance levels achieved solely by the daylighting film.

  4. Thermal insulation for buildings. September 1982-May 1990 (A Bibliography from the COMPENDEX data base). Report for September 1982-May 1990

    SciTech Connect (OSTI)

    Not Available

    1990-06-01

    This bibliography contains citations concerning materials used for the thermal insulation of buildings. Consumer acceptance of materials and weatherproofing options are included. Insulation in new and retrofitted buildings is discussed. Residential buildings, earth sheltered structures, greenhouses, and animal houses are among the structures studied. Infrared thermal sensing of heat loss, insulation placement, multilayer partition walls, and insulating windows are briefly considered. (This updated bibliography contains 299 citations, 55 of which are new entries to the previous edition.)

  5. Method for enhancing the resolving power of ion mobility separations over a limited mobility range

    DOE Patents [OSTI]

    Shvartsburg, Alexandre A; Tang, Keqi; Smith, Richard D

    2014-09-23

    A method for raising the resolving power, specificity, and peak capacity of conventional ion mobility spectrometry is disclosed. Ions are separated in a dynamic electric field comprising an oscillatory field wave and opposing static field, or at least two counter propagating waves with different parameters (amplitude, profile, frequency, or speed). As the functional dependencies of mean drift velocity on the ion mobility in a wave and static field or in unequal waves differ, only single species is equilibrated while others drift in either direction and are mobility-separated. An ion mobility spectrum over a limited range is then acquired by measuring ion drift times through a fixed distance inside the gas-filled enclosure. The resolving power in the vicinity of equilibrium mobility substantially exceeds that for known traveling-wave or drift-tube IMS separations, with spectra over wider ranges obtainable by stitching multiple segments. The approach also enables low-cutoff, high-cutoff, and bandpass ion mobility filters.

  6. Effective Protocols for Mobile Communications and Networking

    SciTech Connect (OSTI)

    Espinoza, J.; Sholander, P.; Van Leeuwen, B,

    1998-12-01

    This report examines methods of mobile communications with an emphasis on mobile computing and wireless communications. Many of the advances in communications involve the use of Internet Protocol (IP), Asynchronous Transfer Mode (ATM), and ad hoc network protocols. However, many of the advances in these protocols have been focused on wired communications. Recently much focus has been directed at advancing communication technology in the area of mobile wireless networks. This report discusses various protocols used in mobile communications and proposes a number of extensions to existing protocols. A detailed discussion is also included on desirable protocol characteristics and evaluation criteria. In addition, the report includes a discussion on several network simulation tools that maybe used to evaluate network protocols.

  7. Self-Assembly, Molecular Ordering, and Charge Mobility in Solution-Processed Ultrathin Oligothiophene Films

    SciTech Connect (OSTI)

    Murphy,A.; Chang, P.; VanDyke, P.; Liu, J.; Frechet, J.; Subramanian, V.; Delongchamp, D.; Sambasivan, S.; Fischer, D.; Lin, E.

    2005-01-01

    Symmetrical {alpha}, {omega}-substituted quarter-(T4), penta-(T5), sexi-(T6), and heptathiophene (T7) oligomers containing thermally removable aliphatic ester solubilizing groups were synthesized, and their UV-vis and thermal characteristics were compared. Spun-cast thin films of each oligomer were examined with atomic force microscopy and near-edge X-ray absorption fine structure spectroscopy to evaluate the ability of the material to self-assemble from a solution-based process while maintaining complete surface coverage. Films of the T5-T7 oligomers self-assemble into crystalline terraces after thermal annealing with higher temperatures required to affect this transformation as the size of the oligomers increases. A symmetrical {alpha}, {omega}-substituted sexithiophene (T6-acid) that reveals carboxylic acids after thermolysis was also prepared to evaluate the effect of the presence of hydrogen-bonding moieties. The charge transport properties for these materials evaluated in top-contact thin film transistor devices were found to correlate with the observed morphology of the films. Therefore, the T4 and the T6-acid performed poorly because of incomplete surface coverage after thermolysis, while T5-T7 exhibited much higher performance as a result of molecular ordering. Increases in charge mobility correlated to increasing conjugation length with measured mobilities ranging from 0.02 to 0.06 cm2/(V{center_dot}s). The highest mobilities were measured when films of each oligomer had an average thickness between one and two monolayers, indicating that the molecules become exceptionally well-ordered during the thermolysis process. This unprecedented ordering of the solution-cast molecules results in efficient charge mobility rarely seen in such ultrathin films.

  8. Thermally-related safety issues associated with thermal batteries.

    SciTech Connect (OSTI)

    Guidotti, Ronald Armand

    2006-06-01

    Thermal batteries can experience thermal runaway under certain usage conditions. This can lead to safety issues for personnel and cause damage to associated test equipment if the battery thermally self destructs. This report discusses a number of thermal and design related issues that can lead to catastrophic destruction of thermal batteries under certain conditions. Contributing factors are identified and mitigating actions are presented to minimize or prevent undesirable thermal runaway.

  9. New app takes Lab's volunteer efforts mobile

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

    New app takes Lab's volunteer efforts mobile Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:May 2016 all issues All Issues » submit New app takes Lab's volunteer efforts mobile Lab volunteers now can enter hours on the go April 1, 2014 Chemistry Day volunteer shrinks a balloon using liquid nitrogen. Chemistry Day volunteer shrinks a balloon using liquid nitrogen. Contact Community Programs Office Director Kurt Steinhaus Email Editor

  10. Energy Department Announces Six Projects to Develop Energy-Saving Windows, Roofs, and Heating and Cooling Equipment

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Energy Department announces a $9 million investment in leading-edge building envelope technologies, including high-efficiency, high-performance windows, roofs and heating and cooling equipment.

  11. California: Heliotrope Technologies Wins R&D 100 Award for Universal Smart Window Coating that Saves Energy and Increases Comfort

    Broader source: Energy.gov [DOE]

    EERE-funded Heliotrope Technologies, with support from EEREs Lawrence Berkeley National Laboratory (LBNL), received a 2013 R&D 100 Award for their Universal Smart Window (USW) Coating.

  12. Technology Solutions Case Study: A Homeowner’s Guide to Window Air Conditioner Installation for Efficiency and Comfort

    SciTech Connect (OSTI)

    C. Booten

    2013-06-01

    This fact sheet offers a step-by-step guide to proper installation of window air conditioning units, in order to improve energy efficiency, cost savings, and comfort for homeowners.

  13. NREL Improves Window Heat Transfer Calculations (Fact Sheet), Highlights in Research & Development, NREL (National Renewable Energy Laboratory)

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

    Analysis of algorithm discrepancies helps to promote market confidence in EnergyPlus and DOE-2. Heat loss through windows represents a significant amount of the overall energy use in homes. To address discrepancies in building simulation software-and market barriers impeding building energy use analysis-researchers at the National Renewable Energy Laboratory (NREL) identified and resolved window-related energy predictions of EnergyPlus and DOE-2, thereby improving the accuracy of both simulation

  14. Multilayer thermal barrier coating systems

    DOE Patents [OSTI]

    Vance, Steven J.; Goedjen, John G.; Sabol, Stephen M.; Sloan, Kelly M.

    2000-01-01

    The present invention generally describes multilayer thermal barrier coating systems and methods of making the multilayer thermal barrier coating systems. The thermal barrier coating systems comprise a first ceramic layer, a second ceramic layer, a thermally grown oxide layer, a metallic bond coating layer and a substrate. The thermal barrier coating systems have improved high temperature thermal and chemical stability for use in gas turbine applications.

  15. Thermal Properties Measurement Report

    SciTech Connect (OSTI)

    Carmack, Jon; Braase, Lori; Papesch, Cynthia; Hurley, David; Tonks, Michael; Zhang, Yongfeng; Gofryk, Krzysztof; Harp, Jason; Fielding, Randy; Knight, Collin; Meyer, Mitch

    2015-08-01

    The Thermal Properties Measurement Report summarizes the research, development, installation, and initial use of significant experimental thermal property characterization capabilities at the INL in FY 2015. These new capabilities were used to characterize a U3Si2 (candidate Accident Tolerant) fuel sample fabricated at the INL. The ability to perform measurements at various length scales is important and provides additional data that is not currently in the literature. However, the real value of the data will be in accomplishing a phenomenological understanding of the thermal conductivity in fuels and the ties to predictive modeling. Thus, the MARMOT advanced modeling and simulation capability was utilized to illustrate how the microstructural data can be modeled and compared with bulk characterization data. A scientific method was established for thermal property measurement capability on irradiated nuclear fuel samples, which will be installed in the Irradiated Material Characterization Laboratory (IMCL).

  16. Thermal insulations using vacuum panels

    DOE Patents [OSTI]

    Glicksman, Leon R.; Burke, Melissa S.

    1991-07-16

    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.

  17. Underhood Thermal Performance

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

    Underhood Thermal Performance This email address is being protected from spambots. You need JavaScript enabled to view it. - Computational Fluid Dynamics Project Leader Background As vehicle technology advances, automakers need a better understanding of underhood heat loads, especially as they relate to emissions and fuel efficiency. Manufacturers of heavy-duty vehicles and off-road machines have similar concerns. Ineffective underhood thermal management can lead to higher emissions, reduced

  18. Turbine Thermal Management

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

    Turbine Thermal Management Fact Sheets Research Team Members Key Contacts Turbine Thermal Management The gas turbine is the workhorse of power generation, and technology advances to current land-based turbines are directly linked to our country's economic and energy security. Technical advancement for any type of gas turbine generally implies better performance, greater efficiency, and extended component life. From the standpoint of cycle efficiency and durability, this suggests that a continual

  19. Photovoltaic-thermal collectors

    DOE Patents [OSTI]

    Cox, III, Charles H. (Carlisle, MA)

    1984-04-24

    A photovoltaic-thermal solar cell including a semiconductor body having antireflective top and bottom surfaces and coated on each said surface with a patterned electrode covering less than 10% of the surface area. A thermal-absorbing surface is spaced apart from the bottom surface of the semiconductor and a heat-exchange fluid is passed between the bottom surface and the heat-absorbing surface.

  20. SU-E-T-478: Sliding Window Multi-Criteria IMRT Optimization

    SciTech Connect (OSTI)

    Craft, D; Papp, D; Unkelbach, J; Bokrantz, R

    2014-06-01

    Purpose: To demonstrate a method for what-you-see-is-what-you-get multi-criteria Pareto surface navigation for step and shoot IMRT treatment planning. Methods: We show mathematically how multiple sliding window treatment plans can be averaged to yield a single plan whose dose distribution is the dosimetric average of the averaged plans. This is incorporated into the Pareto surface navigation based approach to treatment planning in such a way that as the user navigates the surface, the plans he/she is viewing are ready to be delivered (i.e. there is no extra ‘segment the plans’ step that often leads to unacceptable plan degradation in step and shoot Pareto surface navigation). We also describe how the technique can be applied to VMAT. Briefly, sliding window VMAT plans are created such that MLC leaves paint out fluence maps every 15 degrees or so. These fluence map leaf trajectories are averaged in the same way the static beam IMRT ones are. Results: We show mathematically that fluence maps are exactly averaged using our leaf sweep averaging algorithm. Leaf transmission and output factor corrections effects, which are ignored in this work, can lead to small errors in terms of the dose distributions not being exactly averaged even though the fluence maps are. However, our demonstrations show that the dose distributions are almost exactly averaged as well. We demonstrate the technique both for IMRT and VMAT. Conclusions: By turning to sliding window delivery, we show that the problem of losing plan fidelity during the conversion of an idealized fluence map plan into a deliverable plan is remedied. This will allow for multicriteria optimization that avoids the pitfall that the planning has to be redone after the conversion into MLC segments due to plan quality decline. David Craft partially funded by RaySearch Laboratories.