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


1

Measurement of the solar heat gain coefficient and U value of windows with insect screens  

SciTech Connect

Energy ratings are currently being used in a number of countries to assist in the selection of windows and doors based on energy performance. Developed for simple comparison purposes, these rating numbers do not take into account window removable attachments such as insect screens that are, nevertheless, widely used. Research was carried out to assess the effect of insect screens on the heat gains and losses of windows. The work reported in this paper deals with the effect of one screen type on the performance of a base-case, double-glazed window. Using an indoor solar simulator facility, measurements of the window solar heat gain coefficient (SHGC) and U value were made for different screen attachment configurations and climatic conditions. Results with the sample window tested indicate that insect screens placed on the outdoor side can reduce its SHGC by 46% with only a 7% reduction in its U value (0.19 W/m{sup 2}{center_dot}C), and that insect screens placed on the indoor side can reduce its SHGC by 15% while reducing its U value by 14% (0.38 W/m{sup 2}{center_dot}C).

Brunger, A.; Dubrous, F.M.; Harrison, S.

1999-07-01T23:59:59.000Z

2

Benefits of the International Residential Code's Maximum Solar heat Gain Coefficient Requirement for Windows  

E-Print Network (OSTI)

Texas adopted in its residential building energy code a maximum 0.40 solar heat gain coefficient (SHGC) for fenestration (e.g., windows, glazed doors and skylights)-a critical driver of cooling energy use, comfort and peak demand. An analysis of the expected costs and benefits of low solar heat gain glazing, and specifically the SHGC requirement in the new Texas Residential Building Energy Code,1 shows that the 0.40 SHGC requirement is ideal for Texas and that the benefits far outweigh the expected costs. For consumers, the requirement will increase comfort and reduce their cost of home ownership. The anticipated public benefits are also substantial - the result of full implementation can be expected to: 1) Reduce cumulative statewide cooling energy use over ten years by 15 billion kWh; 2) Reduce cumulative statewide electric peak demand over ten years by over 1200 MW; 3) Result in cooling cost savings of more than a billion dollars; and 4) Reduce cumulative statewide key air pollutants.

Stone, G. A.; DeVito, E. M.; Nease, N. H.

2002-01-01T23:59:59.000Z

3

Building Energy Software Tools Directory: Window Heat Gain  

NLE Websites -- All DOE Office Websites (Extended Search)

Window Heat Gain Window Heat Gain Window Heat Gain image Calculates the solar heat gain through vertical windows in temperate latitudes. Screen Shots Keywords Solar, window, energy Validation/Testing N/A Expertise Required None. Users Few (new program). Audience Architects, energy analysts. Input Location, window characteristics, ground characteristics. Output Daily/monthly heat gain through window. Computer Platform Web Programming Language JavaScript Strengths Allows default locations/windows/surfaces or custom user data. Incorporates lots of ASHRAE SHGF data that is otherwise burdensome to deal with. Weaknesses Only works for windows facing close to due north, south, east, or west. Doesn't address conductive losses or shading. Contact Company: Sustainable By Design Address: 3631 Bagley Avenue North

4

Window solar heating unit  

SciTech Connect

The unit may be mounted either in a window or between the studs of a building that is to be supplied with solar heat. The bottom of the unit extends farther from the building than the top and is wider than the top of the unit such that the transparent side away from the building has an arcuate form and is gradually flared outwardly in a downward direction to increase the exposure to the sun during the day. A plurality of absorptive tubes within the unit are slanted from the upper portion of the unit downwardly and outwardly to the front arcuate portion of the bottom. Openings between the unit and the building are provided for air flow, and a thermostatically controlled fan is mounted in one of the openings. A baffle is mounted between the absorptive tubes and the mounting side of the solar heating unit, and the surfaces of the baffle and the absorptive tubes are painted a dull black for absorbing heat transmitted from the sun through the transparent, slanting side.

Davis, E.J.

1978-09-12T23:59:59.000Z

5

High Performance Solar Control Office Windows  

E-Print Network (OSTI)

Solar Control Office Windows William King December 1977 C'eSOLAR CONTROL OFFICE WINDOWS Wm. J. King KINETIC COATINGS,R. Berman. Consultation on window characteristics and aid in

King, William J.

2011-01-01T23:59:59.000Z

6

Determining the Solar Optical Properties of Windows with Shading...  

NLE Websites -- All DOE Office Websites (Extended Search)

energy consumption because there are more design parameters that can be used to control solar gain. Thus, the ability to accurate characterize performance of a wide range of window...

7

Solar window collection and distribution module system. Final performance report  

SciTech Connect

The construction and monitoring of a solar window collection and distribution system are presented. One complete window module was purchased and assembled, including: the glass, the window frames, sealants, grills, vents and a mechanical damper device. Monitoring of the system operation was limited to measuring inside air temperature, outside air temperature, and circulation temperatures through the window module systems, as well as the actual tinted glass surface temperature. The system has produced a reduction in glare, fading of furniture, and control of solar gains to a building structure.

1985-01-01T23:59:59.000Z

8

Applicability of Solar Airflow Windows  

E-Print Network (OSTI)

Accurate prediction of the performance of Solar Air Windows (SAWs) operating in various climates under real conditions has not been investigated. This paper reports the results of numerical simulations of SAWs carried out using ANSYS-CFX considering real boundary conditions. In order to determine the feasibility of SAWs, their performance has been examined in two similar office buildings located at two different climates. Each building has 30% of its south facing wall covered with SAWs in the spandrel areas. The results of the numerical simulations of the SAW operating in supply mode in January indicated that that for an office building located in Ottawa, Canada, 6% of its ventilation load and 12% of its heating load could be supplied by SAWs during a sunny day. Operating in exhaust mode in June, SAWs could be used to provide about 14% of the ventilation load of the office building located in Dubai, UAE.

Hamed, M. S.; Friedrich, K.; Razaqpur, G.; Foo, S.

2010-01-01T23:59:59.000Z

9

Determining the Solar Optical Properties of Windows with Shading Devices-  

NLE Websites -- All DOE Office Websites (Extended Search)

Determining the Solar Optical Properties of Windows with Shading Devices- Determining the Solar Optical Properties of Windows with Shading Devices- New Measurement and Modeling Techniques Speaker(s): Nathan Kotey Date: October 5, 2009 - 12:00pm Location: 90-3122 The global interest to reduce energy use in buildings has focussed new efforts to more aggressively reduce energy used by all major building components, such as window systems. Although good progress has been made in reducing heat loss, the contribution of windows to heat gain, peak cooling loads and cooling energy consumption is increasingly viewed globally as a problem. While glass coatings provide some control, shading devices on windows have the potential to do an even better job to reduce peak cooling load and annual energy consumption because there are more design parameters

10

T-601: Windows Kernel win32k.sys Lets Local Users Gain Elevated Privileges  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

01: Windows Kernel win32k.sys Lets Local Users Gain Elevated 01: Windows Kernel win32k.sys Lets Local Users Gain Elevated Privileges T-601: Windows Kernel win32k.sys Lets Local Users Gain Elevated Privileges April 13, 2011 - 5:12am Addthis PROBLEM: Windows Kernel win32k.sys Lets Local Users Gain Elevated Privileges 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 Server 2003 with SP2 for Itanium-based Systems, Windows Vista Service Pack 1 and Windows Vista Service Pack 2, Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2, Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2*, Windows Server 2008 for x64-based Systems

11

Contoured insulation window for evacuated solar collector  

SciTech Connect

An insulating contoured window is provided for use with an enclosed chamber such as an evacuated flat plate solar heat collector with the contoured solar window being of minimum thickness and supported solely about its peripheral edge portions. The window is contoured in both its longitudinal and transverse directions, such that in its longitudinal direction the window is composed of a plurality of sinusoidal corrugations whereas in its transverse direction the peaks of such corrugations are contoured in the form of paraboloids so that the structure may withstand the forces generated thereon by the atmosphere.

Coppola, F. T.; Lentz, W. P.; Vandewoestine, R. V.

1980-02-05T23:59:59.000Z

12

Zero Energy Windows  

E-Print Network (OSTI)

solar gains with highly insulating windows, which leads to windows with positive heating energy flows offsetting buildingheating energy needs, reject solar gain to reduce cooling loads, significantly mitigate a building’

Arasteh, Dariush; Selkowitz, Steve; Apte, Josh; LaFrance, Marc

2006-01-01T23:59:59.000Z

13

High performance solar control office windows  

SciTech Connect

Investigations conducted over a 9 month period on the use of ion beam sputtering methods for the fabrication of solar control windows for energy conservation are described. Principal emphasis was placed on colored, reflecting, heat rejecting, office building windows for reducing air conditioning loads and to aid in the design of energy conserving buildings. The coating techniques were developed primarily for use with conventional absorbing plate glass such as PPG solarbronze, but were also demonstrated on plastic substrates for retrofit applications. Extensive material investigations were conducted to determine the optimum obtainable characteristics, with associated weathering studies as appropriate aimed at achieving a 20 year minimum life. Conservative estimates indicate that successful commercialization of the windows developed under this program would result in energy savings of 16,000,000 barrels of oil/year by 1990 if installation were only 10 percent of new commercial building stock. These estimates are relative to existing design for energy conserving windows. Installation in a greater percentage of new stock and for retrofit applications could lead to proportionately greater energy savings. All such installations are projected as cost effective as well as energy effective. A secondary program was carried out to modify the techniques to yield thermal control windows for residential applications. These windows were designed to provide a high heat retention capability without seriously affecting their transmission of incident solar radiation, thereby enhancing the greenhouse effect. This part of the program was successful in producing a window form which could be interchanged for standard residential window material in a cost and energy effective manner. The only variation from standard stock in appearance is a very light rose or neutral gray coloring.

King, W.J.

1977-12-01T23:59:59.000Z

14

Measured winter performance of storm windows  

E-Print Network (OSTI)

or Prime/Storm Replacement Window Thermal Watts Solar WattsFactor and Solar Heat Gain Coefficient Prime or Prime/Stormdesigned interior storm window. ) Solar Heat Gain One does

Klems, Joseph H.

2002-01-01T23:59:59.000Z

15

Windowed versus windowless solar energy cavity receivers  

DOE Green Energy (OSTI)

A model for a windowed, high-temperature cavity receiver of the heated-air type is developed and used to evaluate the greenhouse effect as a method for obtaining high receiver operating efficiencies. The effects on receiver efficiency of varying the window cutoff wavelength, the amount of absorption in the window pass-band, the cavity operating temperature, and the number of windows are determined. Single windowed cavities are found to offer theoretical efficiencies comparable to windowless ones, while multiple windowed units are found to suffer from low operating efficiencies due to losses resulting from reflections at each window/air interface. A ''first order'' examination is made of the feasibility of air cooling the window to assure its survival. This appears possible if a proper combination of cooling technique and window material characteristics is selected.

Jarvinen, P. O.

1976-09-01T23:59:59.000Z

16

Dynamic Windows.pdf  

NLE Websites -- All DOE Office Websites (Extended Search)

including products with improved fixed or static properties and products with dynamic solar heat gain proper- ties. Nine representative window products are examined in eight...

17

Window-Related Energy Consumption in the US Residential and Commercial Building Stock  

E-Print Network (OSTI)

solar gains with highly insulating windows, which leads to windows with positive heating energy flows offsetting buildingBuilding Heating Loads (Trillion BTU/yr) Year Made Number of Buildings (Thousands, 1993) U Factor SHGC Window Window SolarSolar Window Cond Window Infiltration Non-Window Infiltration Other Loads Total Loads Total Loads Window Properties Total Building Heating

Apte, Joshua; Arasteh, Dariush

2008-01-01T23:59:59.000Z

18

Performance of a multifunctional PV/T hybrid solar window  

Science Conference Proceedings (OSTI)

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)

Davidsson, Henrik; Perers, Bengt; Karlsson, Bjoern [Energy and Building Design, Lund University, P.O. Box 118, SE 221 00 Lund (Sweden)

2010-03-15T23:59:59.000Z

19

Evaluation of solar gain through skylights for inclusion in the SP53 residential building loads data base  

DOE Green Energy (OSTI)

The energy performance of skylights is similar to that of windows in admitting solar heat gain, while at the same time providing a pathway for convective and conductive heat transfer through the building envelope. Since skylights are typically installed at angles ranging from 0{degrees} to 45{degrees}, and differ from windows in both their construction and operation, their conductive and convective heat gains or losses, as well as solar heat gain, will differ for the same rough opening and thermal characteristics. The objective of this work is to quantify the impact of solar gain through skylights on building heating and cooling loads in 45 climates, and to develop a method for including these data into the SP53 residential loads data base previously developed by LBL in support of DOE`s Automated Residential Energy Standard (ARES) program. The authors used the DOE-2.1C program to simulate the heating and cooling loads of a prototypical residential building while varying the size and solar characteristics of skylights and windows. The results are presented as Skylight Solar Loads, which are the contribution of solar gains through skylights to the overall building heating and cooling loads, and as Skylight Solar Load Ratios, which are the ratios of skylight solar loads to those for windows with the same orientation. The study shows that skylight solar loads are larger than those for windows in both heating and cooling. Skylight solar cooling loads are from three to four times greater than those for windows regardless of the skylight tilt, except for those facing north. These cooling loads are largest for south-facing skylights at a tilt angle of approximately 20{degrees}, and drop off at higher tilts and other orientations.

Hanford, J.W.; Huang, Y.J.

1993-12-01T23:59:59.000Z

20

Solar Window Technology for BIPV or  

E-Print Network (OSTI)

a high degree of light transmission whilst generating electricity from a reduced area of expensive transmission capability of the panel making them generally unsuitable for use as windows etc. A solution light to an array of PV cells arranged to allow light transmission between each PV cell yet still

Painter, Kevin

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


21

EERE Roofus' Solar and Efficient Home: Windows  

NLE Websites -- All DOE Office Websites (Extended Search)

or you can use a compass to find out. Where I live, it gets cold in the winter, so my solar house uses the sun to help me stay warm. On a nice sunny day, you can see for yourself...

22

The ultra-thin solar cells that could generate power through windows  

E-Print Network (OSTI)

The ultra-thin solar cells that could generate power through windows By Claire Bates Last updated, generating enough electricity to power the GPS or air conditioning. Solar cells, which convert solar energy into tinted windows Page 1 of 3The ultra-thin solar cells that could generate power through windows | Mail

Rogers, John A.

23

Generalized solar load ratio correlation for direct gain buildings  

DOE Green Energy (OSTI)

A generalized solar load ratio correlation has been developed for direct gain buildings by generating relationships between the correlation parameters and two fundamental design parameters. The first design parameter is the steady state conductance of the solar aperture, U/sub c/. The second is the effective heat capacity of the solar zone, EHC.

Wray, W.O.; Best, E.D.

1986-01-01T23:59:59.000Z

24

Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain  

E-Print Network (OSTI)

estimate solar heat gains in the cooling and heatingof E891BN solar irradiance economic value of annual heatingglobal solar re?ectance, ? R summer , and that the heating

Levinson, Ronnen

2010-01-01T23:59:59.000Z

25

Solar energy collector for mounting over windows of buildings for space heating thereof  

SciTech Connect

The ornamental design for a solar energy collector for mounting over windows of buildings for space heating thereof, as shown.

Arrington, P.M.

1982-09-07T23:59:59.000Z

26

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Solar Control Window Film Solar Control Window Film Window Attachments For detailed information on storm windows and other window attachments, visit www.windowattachments.org exit disclaimer , a site supported by Lawrence Berkeley National Laboratory, Building Green, and the U.S. Department of Energy. DOE's Energy Savers You can improve the energy efficiency of existing windows by applying a film. High-Reflectivity Window Films exit disclaimer International Window Film Association For more information on window film, check the Window Film Information Center exit disclaimer . Solar control window film reduces solar heat gain by reflection and absorption. As they also block solar heat gain in winter months, these films are ideal for cooling-dominated climates. Window films can be tinted

27

Impact of Solar Heat Gain on Radiant Floor Cooling System Design  

E-Print Network (OSTI)

Bauman F. 2013. Impact of Solar Heat Gain on Radiant FloorBauman F. 2013. Impact of Solar Heat Gain on Radiant FloorBauman F. 2013. Impact of Solar Heat Gain on Radiant Floor

Feng, Jingjuan Dove; Schiavon, Stefano; Bauman, Fred

2013-01-01T23:59:59.000Z

28

window  

Science Conference Proceedings (OSTI)

NIST. window. (definition). ... 17 December 2004. (accessed TODAY) Available from: http://www.nist.gov/dads/HTML/window.html. to NIST home page.

2013-05-08T23:59:59.000Z

29

PERFORMANCE ANALYSIS OF A WINDOWED HIGH TEMPERATURE GAS RECEIVER USING A SUSPENSION OF ULTRAFINE CARBON PARTICLES AS THE SOLAR ABSORBER  

E-Print Network (OSTI)

efficiency. INTRODUCTION Recently, there has been renewed interest in windowed high temperature receivers for solar thermal

Fisk, William J.

2012-01-01T23:59:59.000Z

30

Window  

NLE Websites -- All DOE Office Websites (Extended Search)

Window A window thermal analysis computer program that is the de facto standard used by U.S. manufacturers to characterize product performance. The program has been selected by the...

31

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Daylight and view are two of the fundamental attributes of a window. Unfortunately, windows can also be the source of significant solar heat gain during times when it is...

32

Measuring solar reflectance - Part I: Defining a metric that accurately predicts solar heat gain  

Science Conference Proceedings (OSTI)

Solar reflectance can vary with the spectral and angular distributions of incident sunlight, which in turn depend on surface orientation, solar position and atmospheric conditions. A widely used solar reflectance metric based on the ASTM Standard E891 beam-normal solar spectral irradiance underestimates the solar heat gain of a spectrally selective ''cool colored'' surface because this irradiance contains a greater fraction of near-infrared light than typically found in ordinary (unconcentrated) global sunlight. At mainland US latitudes, this metric R{sub E891BN} can underestimate the annual peak solar heat gain of a typical roof or pavement (slope {roofs in a building energy simulation can exaggerate the economic value N of annual cool roof net energy savings by as much as 23%. We define clear sky air mass one global horizontal (''AM1GH'') solar reflectance R{sub g,0}, a simple and easily measured property that more accurately predicts solar heat gain. R{sub g,0} predicts the annual peak solar heat gain of a roof or pavement to within 2 W m{sup -2}, and overestimates N by no more than 3%. R{sub g,0} is well suited to rating the solar reflectances of roofs, pavements and walls. We show in Part II that R{sub g,0} can be easily and accurately measured with a pyranometer, a solar spectrophotometer or version 6 of the Solar Spectrum Reflectometer. (author)

Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul [Heat Island Group, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 (United States)

2010-09-15T23:59:59.000Z

33

No pane, no gain: efficient evaluation of sliding-window aggregates over data streams  

E-Print Network (OSTI)

Window queries are proving essential to data-stream processing. In this paper, we present an approach for evaluating sliding-window aggregate queries that reduces both space and computation time for query execution. Our approach divides overlapping windows into disjoint panes, computes sub-aggregates over each pane, and “rolls up ” the pane-aggregates to compute window-aggregates. Our experimental study shows that using panes has significant performance benefits. 1.

Jin Li; David Maier; Kristin Tufte; Vassilis Papadimos; Peter A. Tucker

2005-01-01T23:59:59.000Z

34

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Selection Process for Replacement Windows Selection Process for Replacement Windows What are the benefits of energy-efficient windows? Energy & Cost Savings Improved Comfort Less Condensation Increased Light & View Reduced Fading Lower HVAC Costs How is window performance measured? U-factor Solar Heat Gain Coefficient Visible Transmittance Air Leakage Condensation Resistance Are there financing and incentive programs? Overview of Utility and State Programs Building Codes Energy Rating Programs 1. Assess Your Existing Windows Assess whether your windows should be repaired, retrofitted, or replaced. While most new windows have labels indicating their energy properties, such information is not often available for existing windows. Download Window Energy Efficiency Checklist for assistance. Window Replacement

35

Additional solar/load ratio correlations for direct gain buildings  

DOE Green Energy (OSTI)

Solar/load ratio (SLR) correlations have been developed for two new reference direct gain designs. The new reference designs are identical to the originals except that the glazing air gap has been increased from 1/4 in. to 1/2 in. and a vector average of the local hourly windspeed was used in the thermal network calculations rather than an assumed average value of 15 m.p.h. Both of these modifications are realistic and enhance the predicted performance of direct gain buildings. A comprehensive set of mass sensitivity calculations has been performed in order to provide information needed to select an appropriate set of parameters for new lightweight direct gain designs for which additional SLR correlations will be developed. Representative results are reported.

Wray, W.O.

1980-01-01T23:59:59.000Z

36

Mobile Window Thermal Test  

NLE Websites -- All DOE Office Websites (Extended Search)

Mobile Window Thermal Test (MoWiTT) Facility Mobile Window Thermal Test (MoWiTT) Facility winter.jpg (469135 bytes) The window has come a long way since the days when it was a single pane of glass in a wood frame. Low-emissivity windows were designed to help buildings retain some of the energy that would have leaked out of less efficient windows. Designing efficient window-and-frame systems is one strategy for reducing the energy use of buildings. But the net energy flowing through a window is a combination of temperature- driven thermal flows and transmission of incident solar energy, both of which vary with time. U-factor and solar heat gain coefficient (SHGC), the window properties that control these flows, depend partly on ambient conditions. Window energy flows can affect how much energy a building uses, depending on when the window flows are available to help meet other energy demands within the building, and when they are adverse, adding to building energy use. This leads to a second strategy for reducing building energy use: using the beneficial solar gain available through a window, either for winter heating or for daylighting, while minimizing adverse flows.

37

Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain  

SciTech Connect

Solar reflectance can vary with the spectral and angular distributions of incident sunlight, which in turn depend on surface orientation, solar position and atmospheric conditions. A widely used solar reflectance metric based on the ASTM Standard E891 beam-normal solar spectral irradiance underestimates the solar heat gain of a spectrally selective 'cool colored' surface because this irradiance contains a greater fraction of near-infrared light than typically found in ordinary (unconcentrated) global sunlight. At mainland U.S. latitudes, this metric RE891BN can underestimate the annual peak solar heat gain of a typical roof or pavement (slope {le} 5:12 [23{sup o}]) by as much as 89 W m{sup -2}, and underestimate its peak surface temperature by up to 5 K. Using R{sub E891BN} to characterize roofs in a building energy simulation can exaggerate the economic value N of annual cool-roof net energy savings by as much as 23%. We define clear-sky air mass one global horizontal ('AM1GH') solar reflectance R{sub g,0}, a simple and easily measured property that more accurately predicts solar heat gain. R{sub g,0} predicts the annual peak solar heat gain of a roof or pavement to within 2 W m{sup -2}, and overestimates N by no more than 3%. R{sub g,0} is well suited to rating the solar reflectances of roofs, pavements and walls. We show in Part II that R{sub g,0} can be easily and accurately measured with a pyranometer, a solar spectrophotometer or version 6 of the Solar Spectrum Reflectometer.

Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul

2010-05-14T23:59:59.000Z

38

Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain  

SciTech Connect

Solar reflectance can vary with the spectral and angular distributions of incident sunlight, which in turn depend on surface orientation, solar position and atmospheric conditions. A widely used solar reflectance metric based on the ASTM Standard E891 beam-normal solar spectral irradiance underestimates the solar heat gain of a spectrally selective 'cool colored' surface because this irradiance contains a greater fraction of near-infrared light than typically found in ordinary (unconcentrated) global sunlight. At mainland U.S. latitudes, this metric RE891BN can underestimate the annual peak solar heat gain of a typical roof or pavement (slope {le} 5:12 [23{sup o}]) by as much as 89 W m{sup -2}, and underestimate its peak surface temperature by up to 5 K. Using R{sub E891BN} to characterize roofs in a building energy simulation can exaggerate the economic value N of annual cool-roof net energy savings by as much as 23%. We define clear-sky air mass one global horizontal ('AM1GH') solar reflectance R{sub g,0}, a simple and easily measured property that more accurately predicts solar heat gain. R{sub g,0} predicts the annual peak solar heat gain of a roof or pavement to within 2 W m{sup -2}, and overestimates N by no more than 3%. R{sub g,0} is well suited to rating the solar reflectances of roofs, pavements and walls. We show in Part II that R{sub g,0} can be easily and accurately measured with a pyranometer, a solar spectrophotometer or version 6 of the Solar Spectrum Reflectometer.

Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul

2010-05-14T23:59:59.000Z

39

Solar Heat Gain Coefficient Worksheet WS-3R Residential (Page 1 of 2)  

E-Print Network (OSTI)

Solar Heat Gain Coefficient Worksheet WS-3R Residential (Page 1 of 2) Site Address: Enforcement Table for Fenestration Products (Table 116-B of the Standards), NFRC certified data, or Solar Heat Gain SHGCmin Total SHGC Note: Calculated Solar Heat Gain Coefficient values for Total SHGC may be used directly

40

Thin Metal Oxide Films to Modify a Window Layer in CdTe-Based Solar Cells for Improved Performance  

Science Conference Proceedings (OSTI)

We report on CdS/CdTe photovoltaic devices that contain a thin Ta2O5 film deposited onto the CdS window layer by sputtering. We show that for thicknesses below 5 nm, Ta2O5 films between CdS and CdTe positively affect the solar cell performance, improving JSC, VOC, and the cell power conversion efficiency despite the insulating nature of the interlayer material. Using the Ta2O5 interlayer, a VOC gain of over 100 mV was demonstrated compared to a CdTe/CdS baseline. Application of a 1nm Ta2O5 interlayer enabled the fabrication of CdTe solar cells with extremely thin (less than 30 nm) CdS window layers. The efficiency of these cells exceeded that of a base line cell with 95 nm of CdS.

Lemmon, John P.; Polikarpov, Evgueni; Bennett, Wendy D.; Kovarik, Libor

2012-05-05T23:59:59.000Z

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


41

Advanced Windows Test Facility  

NLE Websites -- All DOE Office Websites (Extended Search)

Exterior of Advanced Windows Test Facility Exterior of Advanced Windows Test Facility Advanced Windows Test Facility This multi-room laboratory's purpose is to test the performance and properties of advanced windows and window systems such as electrochromic windows, and automatically controlled shutters and blinds. The lab simulates real-world office spaces. Embedded instrumentation throughout the lab records solar gains and losses for specified time periods, weather conditions, energy use, and human comfort indicators. Electrochromic glazings promise to be a major advance in energy-efficient window technology, helping to achieve the goal of transforming windows and skylights from an energy liability in buildings to an energy source. The glazing can be reversibly switched from a clear to a transparent, colored

42

Design and validation of an air window for a molten salt solar thermal receiver  

E-Print Network (OSTI)

This thesis contributes to the development of Concentrating Solar Power (CSP) receivers and focuses on the design of an efficient aperture. An air window is proposed for use as the aperture of a CSP molten salt receiver ...

Paxson, Adam Taylor

2009-01-01T23:59:59.000Z

43

Window and seal design for a small particle solar receiver.  

E-Print Network (OSTI)

??Central receivers for solar power towers have recently been under intense investigation. They can convert solar radiation into electricity by supplying heat to a thermodynamic… (more)

Mande, Onkar Kiran

2012-01-01T23:59:59.000Z

44

SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: SUMMARY OF PROCEDURES FOR  

E-Print Network (OSTI)

SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: SUMMARY OF PROCEDURES that with a drastic simplifying assumption these methods can be used to calculate system solar-optical properties and solar heat gain coefficients for arbitrary glazing systems, while requiring limited data about

45

SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: PROCEDURES FOR ESTIMATING  

E-Print Network (OSTI)

SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: PROCEDURES FOR ESTIMATING that with a drastic simplifying assumption these methods can be used to calculate system solar-optical properties and solar heat gain coefficients for arbitrary glazing systems, while requiring limited data about

46

Light-scattering properties of a woven shade-screen material used for daylighting and solar heat-gain control  

Science Conference Proceedings (OSTI)

Shade-screens are widely used in commercial buildings as a way to limit the amount of direct sunlight that can disturb people in the building. The shade screens also reduce the solar heat-gain through glazing the system. Modern energy and daylighting analysis software such as EnergyPlus and Radiance require complete scattering properties of the scattering materials in the system. In this paper a shade screen used in the LBNL daylighting testbed is characterized using a photogoniometer and a normal angle of incidence integrating sphere. The data is used to create a complete bi-directional scattering distribution function (BSDF) that can be used in simulation programs. The resulting BSDF is compared to a model BADFs, both directly and by calculating the solar heat-gain coefficient for a dual pane system using Window 6.

Jonsson, Jacob; Jonsson, Jacob C.; Lee, Eleanor S.; Rubin, Mike

2008-08-01T23:59:59.000Z

47

Configuration of a genetic algorithm for multi-objective optimisation of solar gain to buildings  

Science Conference Proceedings (OSTI)

We report the formulation and implementation of a genetic algorithm to address multi-objective optimisation of solar gain to buildings with the goal of minimising energy consumption and hence limiting carbon emissions. Heuristic optimisation approaches ... Keywords: buildings, carbon, design optimisation, parameter selection, solar gain

Ralph Evins

2010-07-01T23:59:59.000Z

48

Window coverings  

SciTech Connect

This brochure discusses the following: how heat loss and gain occurs, moisture problems, conventional coverings seldom save energy, plastic window sheets, insulated window coverings, and what to look for. (MHR)

1981-01-01T23:59:59.000Z

49

Thermal and solar-optical properties of silica aerogel for use in insulated windows  

SciTech Connect

Silica aerogel is a porous insulating material that is transport to solar radiation. To understand its insulating performance in a window system, it is necessary to first study component heat transfer paths. Aerogel's absorption coefficient, a measure of the attenuation of radiation heat transfer, was determined over the spectral range 1-200 ..mu..m. Although radiation heat transfer is negligible over much of this region, there is a transmission window between 3-6 ..mu..m. At ambient temperatures, for aerogel thicknesses of 0.5-5.0 cm, radiation heat transfer through an unmodified aerogel window is less than 15% of the total heat flux. For evacuated or high-temperature furnace windows, this contribution can be over 50%. Thermal radiative transfer can be somewhat decreased by allowing the aerogel to absorb moisture, but solar transmission and optical clarity are sacrificed. Absorption of water vapor over time causes irreversible structural changes that increase scattering in the solar spectrum. Aerogel's thermal performance can be improved by replacing the pore gas with one of lower conductivity or by evacuating the aerogel to pressure below 0.1 atm. A hypothetical evacuated aerogel window has a calcuated U-Value of approx. =0.5 W/m/sup 2/-K for a gap spacing of 12.5 mm, which is four times better than currently available low-emissivity gas-filled units of similar size. 8 refs., 9 figs.

Hartmann, J.; Rubin, M.; Arasteh, D.

1987-06-01T23:59:59.000Z

50

Sunlight Responsive Thermochromic Window System  

SciTech Connect

Pleotint has embarked on a novel approach with our Sunlight Responsive Thermochromic, SRT™, windows. We are integrating dynamic sunlight control, high insulation values and low solar heat gain together in a high performance window. The Pleotint SRT window is dynamic because it reversibly changes light transmission based on thermochromics activated directly by the heating effect of sunlight. We can achieve a window package with low solar heat gain coefficient (SHGC), a low U value and high insulation. At the same time our windows provide good daylighting. Our innovative window design offers architects and building designers the opportunity to choose their desired energy performance, excellent sound reduction, external pane can be self-cleaning, or a resistance to wind load, blasts, bullets or hurricanes. SRT windows would provide energy savings that are estimated at up to 30% over traditional window systems. Glass fabricators will be able to use existing equipment to make the SRT window while adding value and flexibility to the basic design. Glazing installers will have the ability to fit the windows with traditional methods without wires, power supplies and controllers. SRT windows can be retrofit into existing buildings,

Millett, F,A; Byker,H, J

2006-10-27T23:59:59.000Z

51

Field Evaluation of Windows  

NLE Websites -- All DOE Office Websites (Extended Search)

Evaluation of Windows Evaluation of Windows Last Updated: 10/20/2009 Various tools can be used to evaluate windows in the field. Unless a new window still has the NFRC label attached to it, it is nearly impossible to determine by sight what the thermal and optical performance of a window is. These tools can provide information, such as low-e coating, gap width and gas fill, that can be used to approximate the performance of a window. Solar gain and Low-e detector This device can be used to determine if a low-e coating is present in the window, what type of coating it is, and where it is located. The type of low-e coating will indicate the amount of solar gain that is admitted through the coating. Readings can be "low", "medium" or "high". The device will also indicate on which glass surface the low-e coating is in relation to the position of the device. Limitations: Only works on glass of 1/8" (3 mm) or thinner. Cost: around $350 from EDTM.com

52

Geek-Up[11.05.10]: Quark Gluon Plasma, Solar-Power Generating Windows and  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

05.10]: Quark Gluon Plasma, Solar-Power Generating 05.10]: Quark Gluon Plasma, Solar-Power Generating Windows and CCS Field Studies Geek-Up[11.05.10]: Quark Gluon Plasma, Solar-Power Generating Windows and CCS Field Studies November 5, 2010 - 4:08pm Addthis A simulated collision of lead-ions, courtesy the ALICE experiment at CERN A simulated collision of lead-ions, courtesy the ALICE experiment at CERN Elizabeth Meckes Elizabeth Meckes Director of User Experience & Digital Technologies, Office of Public Affairs More than 1,700 scientists, engineers, technicians and students from seven Department of Energy national laboratories, 89 American universities and one supercomputer center celebrated progress this week when the Large Hadron Collider's (LHC) first record-setting run of high-energy proton collisions ended.

53

LBNL Window & Daylighting Software -- RESFEN  

NLE Websites -- All DOE Office Websites (Extended Search)

SYSTEM REQUIREMENTS GET A COPY DOCUMENTATION KNOWLEDGE BASE Overview Today's energy-efficient windows can dramatically lower the heating and cooling costs associated with windows while increasing occupant comfort and minimizing window surface condensation problems. However, consumers are often confused about how to pick the most efficient window for a residence. Product information typically offers window properties: U-factors or R-values, Solar Heat Gain Coefficients or Shading Coefficients, and air leakage rates. However, the relative importance of these properties depends on site- and building-specific conditions. Furthermore, these properties are based on static evaluation conditions that are very different from the real situation a window will be used in.

54

Measured winter performance of storm windows  

SciTech Connect

Direct comparison measurements were made between various prime/storm window combinations and a well-weatherstripped, single-hung replacement window with a low-E selective glazing. Measurements were made using an accurate outdoor calorimetric facility with the windows facing north. The doublehung prime window was made intentionally leaky. Nevertheless, heat flows due to air infiltration were found to be small, and performance of the prime/storm combinations was approximately what would be expected from calculations that neglect air infiltration. Prime/low-E storm window combinations performed very similarly to the replacement window. Interestingly, solar heat gain was not negligible, even in north-facing orientation.

Klems, Joseph H.

2002-08-23T23:59:59.000Z

55

Advancement of Electrochromic Windows  

NLE Websites -- All DOE Office Websites (Extended Search)

Advancement of Electrochromic Windows Advancement of Electrochromic Windows Title Advancement of Electrochromic Windows Publication Type Report LBNL Report Number LBNL-59821 Year of Publication 2006 Authors Lee, Eleanor S., Stephen E. Selkowitz, Robert D. Clear, Dennis L. DiBartolomeo, Joseph H. Klems, Luis L. Fernandes, Gregory J. Ward, Vorapat Inkarojrit, and Mehry Yazdanian Date Published 04/2006 Other Numbers CEC-500-2006-052 Keywords commercial buildings, daylight, daylighting controls, Electrochromic windows, energy efficiency, human factors, peak demand, switchable windows, visual comfort Abstract This guide provides consumer-oriented information about switchable electrochromic (EC) windows. Electrochromic windows change tint with a small applied voltage, providing building owners and occupants with the option to have clear or tinted windows at any time, irrespective of whether it's sunny or cloudy. EC windows can be manually or automatically controlled based on daylight, solar heat gain, glare, view, energy-efficiency, peak electricity demand response, or other criteria. Window controls can be integrated with other building systems, such as lighting and heating/cooling mechanical systems, to optimize interior environmental conditions, occupant comfort, and energy-efficiency.

56

Zero Energy Windows  

Science Conference Proceedings (OSTI)

Windows in the U.S. consume 30 percent of building heating and cooling energy, representing an annual impact of 4.1 quadrillion BTU (quads) of primary energy. Windows have an even larger impact on peak energy demand and on occupant comfort. An additional 1 quad of lighting energy could be saved if buildings employed effective daylighting strategies. The ENERGY STAR{reg_sign} program has made standard windows significantly more efficient. However, even if all windows in the stock were replaced with today's efficient products, window energy consumption would still be approximately 2 quads. However, windows can be ''net energy gainers'' or ''zero-energy'' products. Highly insulating products in heating applications can admit more useful solar gain than the conductive energy lost through them. Dynamic glazings can modulate solar gains to minimize cooling energy needs and, in commercial buildings, allow daylighting to offset lighting requirements. The needed solutions vary with building type and climate. Developing this next generation of zero-energy windows will provide products for both existing buildings undergoing window replacements and products which are expected to be contributors to zero-energy buildings. This paper defines the requirements for zero-energy windows. The technical potentials in terms of national energy savings and the research and development (R&D) status of the following technologies are presented: (1) Highly insulating systems with U-factors of 0.1 Btu/hr-ft{sup 2}-F; (2) Dynamic windows: glazings that modulate transmittance (i.e., change from clear to tinted and/or reflective) in response to climate conditions; and (3) Integrated facades for commercial buildings to control/ redirect daylight. Market transformation policies to promote these technologies as they emerge into the marketplace are then described.

Arasteh, Dariush; Selkowitz, Steve; Apte, Josh; LaFrance, Marc

2006-05-17T23:59:59.000Z

57

Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain  

E-Print Network (OSTI)

intended to characterize sun-facing solar equipment, whosebe tilted toward the sun to reduce solar incidence angle.zenith sun (AM1) reasonably approximates the solar position

Levinson, Ronnen

2010-01-01T23:59:59.000Z

58

Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain  

E-Print Network (OSTI)

of In press at Progress in Solar Energy April 28, 2010 R.2008. In press at Progress in Solar Energy April 28, 2010 R.ectance measurements. Solar Energy Materials & Solar Cells,

Levinson, Ronnen

2010-01-01T23:59:59.000Z

59

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Assessing Window Replacement Options Assessing Window Replacement Options What are the benefits of energy-efficient windows? Energy & Cost Savings Improved Comfort Less Condensation Increased Light & View Reduced Fading Lower HVAC Costs How is window performance measured? U-factor Solar Heat Gain Coefficient Visible Transmittance Air Leakage Condensation Resistance Are there financing and incentive programs? Overview of Utility and State Programs Performance Standards Energy Rating Programs Building America Program Documents Measure Guideline: Energy-Efficient Window Performance and Selection exit disclaimer Measure Guideline: Wood Window Repair, Rehabilitation, and Replacement exit disclaimer Whether you would like to improve the energy performance of your existing windows or replace them with new energy-efficient windows, several options are available. An energy audit can help you identify good strategies for more efficient windows and a more efficient house. Whichever energy efficiency measures you consider, the federal government as well as state, local, and utility programs may offer financing help or weatherization assistance.

60

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Measuring Performance: Visible Transmittance (VT) Measuring Performance: Visible Transmittance (VT) How to maximize daylight? Historically, only clear glass was used to maximize the amount of light entering through a window. Especially in cooling-dominated climate, this desirable daylight also came with undesirable solar heat gain. With the advancement of high-performance glazing systems, it is possible for low-E coatings to reject the solar heat gain while allowing the visible light to pass through the glass. The type of low-E coating that is appropriate for your specific house depends on location, orientation, window area, and shading strategies. The visible transmittance (VT) is an optical property that indicates the fraction of visible light transmitted through the window. This is separate from the Solar Heat Gain Coefficient (SHGC), since many modern windows

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


61

Solar heat gain through a skylight in a light well  

DOE Green Energy (OSTI)

Detailed heat flow measurements on a skylight mounted on a light well of significant depth are presented. It is shown that during the day much of the solar energy that strikes the walls of the well does not reach the space below. Instead, this energy is trapped in the stratified air of the light well and eventually either conducted through the walls of the well or back out through the skylight. The standard model for predicting fenestration heat transfer does not agree with the measurements when it is applied to the skylight/well combination as a whole (the usual practice), but does agree reasonably well when it is applied to the skylight alone, using the well air temperature near the skylight. A more detailed model gives good agreement. Design implications and future research directions are discussed.

Klems, J.H.

2001-08-01T23:59:59.000Z

62

Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain  

E-Print Network (OSTI)

Devices & Services Solar Spectrum Re?ectometer. Online ator version 6 of the Solar Spectrum Re?ectometer. Akbari’sthe Devices & Services Solar Spectrum Re?ectometer [18] is

Levinson, Ronnen

2010-01-01T23:59:59.000Z

63

Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain  

E-Print Network (OSTI)

of In press at Progress in Solar Energy April 28, 2010 R.and P. Berdahl Measuring solar re?ectance—Part I sunlight2008. In press at Progress in Solar Energy April 28, 2010 R.

Levinson, Ronnen

2010-01-01T23:59:59.000Z

64

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Measuring Performance Measuring Performance What are the benefits of energy-efficient windows? Energy & Cost Savings Improved Comfort Less Condensation Increased Light & View Reduced Fading Lower HVAC Costs Looking for information on windows for a new house? Window Selection Tool Selection Process Design Guidance Installation Looking for information on replacement windows? Window Selection Tool Assessing Options Selection Process Design Guidance Installation U-factor The rate of heat loss is indicated in terms of the U-factor (U-value) of a window assembly. This section on U-factor describes what a U-factor is and it's importance in the heat loss through a window assembly. U-factor Solar Heat Gain Coefficient (SHGC) The SHGC is the fraction of incident solar radiation admitted through a window, both directly transmitted and absorbed and subsequently released inward. This section on Solar Heat Gain Coefficient describes what a SHGC is and it's importance in the amount of heat gain through a window assembly.

65

Solar heat gain coefficient of complex fenestrations with a venetian blind for differing slat tilt angles  

DOE Green Energy (OSTI)

Measured bidirectional transmittances and reflectances of a buff-colored venetian blind together with a layer calculation scheme developed in previous publications are utilized to produce directional-hemispherical properties for the venetian blind layer and solar heat gain coefficients for the blind in combination with clear double glazing. Results are presented for three blind slat tilt angles and for the blind mounted either interior to the double glazing or between the glass panes. Implications of the results for solar heat gain calculations are discussed in the context of sun positions for St. Louis, MO.

Klems, J.H.; Warner, J.L.

1996-08-01T23:59:59.000Z

66

ASHRAE Transactions 103(1) (1997). Solar Heat Gain Coefficient of Complex Fenestrations  

E-Print Network (OSTI)

LBNL-39248 DA-359 ASHRAE Transactions 103(1) (1997). Solar Heat Gain Coefficient of Complex, the most recent edition of the ASHRAE Handbook lists a table characterizing a venetian blind with a single shading coefficient number (ASHRAE 1993) for 0º azimuth and 35º incident angle, (the latter corresponding

67

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Low-E Glazing Low-E Glazing Double-Glazed, High-solar-gain Low-E Glass This figure illustrates the characteristics of a typical double-glazed window with a high-solar gain low-E glass with argon gas fill. These windows are designed to reduce heat loss but admit solar gain. High-solar-gain low-E glass products are best suited for buildings located in heating-dominated climates and are the product of choice for passive solar design projects. High-solar-gain low-E glass is often made with pyrolytic low-E coatings, although sputtered high-solar-gain low-E is also available. Double HSG Low-E Center of Glass Properties Note: These values are for the center of glass only. They should only be used to compare the effect of different glazing types, not to compare total window products. Frame choice can drastically affect performance. These values represent double glazing with a 1/2" air gap.

68

Semi-empirical method for estimating the performance of direct gain passive solar heated buildings  

DOE Green Energy (OSTI)

The sunspot code for performance analysis of direct gain passive solar heated buildings is used to calculate the annual solar fraction for two representative designs in ten American cities. The two representative designs involve a single thermal storage mass configuration which is evaluated with and without night insulation. In both cases the solar aperture is double glazed. The results of the detailed thermal network calculations are then correlated using the monthly solar load ratio method which has already been successfully applied to the analysis of both active solar heated buildings and passive thermal storage wall systems. The method is based on a correlation between the monthly solar heating fraction and the monthly solar load ratio. The monthly solar load ratio is defined as the ratio of the monthly solar energy transmitted through the glazing aperture to the building's monthly thermal load. The procedure using the monthly method for any location is discussed in detail. In addition, a table of annual performance results for 84 cities is presented, enabling the designer to bypass the monthly method for these locations.

Wray, W.O.; Balcomb, J.D.; McFarland, R.D.

1979-01-01T23:59:59.000Z

69

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Triple Low-E Glazing Triple Low-E Glazing Triple-Glazed, High-solar-gain Low-E Glass This figure illustrates the performance of a window with a very low heat loss rate (low U-factor). In this case there are three glazing layers and two low-E coatings, ½" argon gas or ¼" krypton gas fill between glazings, and low-conductance edge spacers. The middle glazing layer can be glass or suspended plastic film. Some windows use four glazing layers (two glass layers and two suspended plastic films). This product is suited for buildings located in very cold climates. Both Low-E coatings in this product have high solar heat and visible light transmittance, which is ideal for passive solar design. The use of three layers, however, results in lower solar heat gain relative to double glazing with high-solar-gain Low-E.

70

AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT  

E-Print Network (OSTI)

EVALUATION OF WINDOW AND COATING MA TERIALS MEASUREMEN T OFTRANSFER A. SECTION 4. WINDOW ANALYSIS, B,. HEAT PIPES, • C,Water Vapors in 3-121-'m window", AD A025377, N77 13597 (

Viswanathan, R.

2011-01-01T23:59:59.000Z

71

Solar Heat Gain Through Fenestration Systems Containing Shading: Procedures for Estimating Performance from Minimal Data  

Science Conference Proceedings (OSTI)

The computational methods for calculating the properties of glazing systems containing shading from the properties of their components have been developed, but the measurement standards and property data bases necessary to apply them have not. It is shown that with a drastic simplifying assumption these methods can be used to calculate system solar-optical properties and solar heat gain coefficients for arbitrary glazing systems, while requiring limited data about the shading. Detailed formulas are presented, and performance multipliers are defined for the approximate treatment of simple glazings with shading. As higher accuracy is demanded, the formulas become very complicated.

Klems, J.H.

2000-08-01T23:59:59.000Z

72

List of issues for next dynamic window prototype/longer-term research  

NLE Websites -- All DOE Office Websites (Extended Search)

075 075 A First-Generation Prototype Dynamic Residential Window Christian Kohler, Howdy Goudey, and Dariush Arasteh Windows and Daylighting Group Lawrence Berkeley National Laboratory Berkeley CA 94720 October 26, 2004 Abstract 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

73

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Selection Process for New Windows Selection Process for New Windows What are the benefits of energy-efficient windows? Energy & Cost Savings Improved Comfort Less Condensation Increased Light & View Reduced Fading Lower HVAC Costs How is window performance measured? U-factor Solar Heat Gain Coefficient Visible Transmittance Air Leakage Condensation Resistance Are there financing and incentive programs? Overview of Utility and State Programs Building Codes Energy Rating Programs 1. Meet the Energy Code and Look for the ENERGY STAR® Windows must meet the locally applicable energy code requirements. Windows that are ENERGY STAR qualified typically meet or exceed energy code requirements. A home's climate and location determine the relative importance of heating and cooling energy use, the applicable building energy code requirements, and the qualification criteria for ENERGY STAR windows. ENERGY STAR

74

ZeroEnergyWindow_1031.indd  

NLE Websites -- All DOE Office Websites (Extended Search)

Background and Performance Objective Background and Performance Objective Zero Energy Window Prototype HIGH PERFORMANCE WINDOW OF THE FUTURE T of 0.35 - 0.5 BTU/h-ft 2 -F to levels of 0.1 - 0.15 BTU/h-ft 2 -F. At the same time, the strategy for optimal control of solar gain varies with season and climate in the U.S. Rather than argue over a high or low solar heat gain coefficient (SHGC), the year-round, all-climate solution is a variable SHGC that can

75

NREL: News - NREL Solar Research Gains Two R&D 100 Awards  

NLE Websites -- All DOE Office Websites (Extended Search)

Bookmark and Share Printable Version Bookmark and Share Printable Version News Release NR-2208 NREL Solar Research Gains Two R&D 100 Awards July 17, 2008 An ultra-light, highly efficient solar cell and use of ink-jet printing to manufacture thin-film photovoltaics-both developed at the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory-have been named among this year's most significant innovations by Research & Development (R&D) Magazine. Known as "the Oscars of Invention," the R&D 100 Award showcases the most significant new technologies commercialized worldwide. NREL has won a total of 42 of the awards, which the magazine has been presenting annually since 1969. The new Inverted Metamorphic Multi-Junction solar cell was developed at NREL and is being commercialized by Emcore Corp. of Albuquerque, N.M., in

76

Adaptive Liquid Crystal Windows  

SciTech Connect

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 world’s 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 AlphaMicron’s 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 AMI’s 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.

Taheri, Bahman; Bodnar, Volodymyr

2011-12-31T23:59:59.000Z

77

A new method for predicting the solar heat gain of complex fenestration systems  

DOE Green Energy (OSTI)

A new method of predicting the solar heat gain through complex fenestration systems involving nonspecular layers such as shades or blinds has been examined in a project jointly sponsored by ASHRAE and DOE. In this method, a scanning radiometer is used to measure the bidirectional radiative transmittance and reflectance of each layer of a fenestration system. The properties of systems containing these layers are then built up computationally from the measured layer properties using a transmission/multiple-reflection calculation. The calculation produces the total directional-hemispherical transmittance of the fenestration system and the layer-by-layer absorbances. These properties are in turn combined with layer-specific measurements of the inward-flowing fractions of absorbed solar energy to produce the overall solar heat gain coefficient. The method has been applied to one of the most optically complex systems in common use, a venetian blind in combination with multiple glazings. A comparison between the scanner-based calculation method and direct system calorimetric measurements made on the LBL MoWiTT facility showed good agreement, and is a significant validation of the method accuracy and feasibility.

Klems, J.H.; Warner, J.L.; Kelley, G.O.

1995-03-01T23:59:59.000Z

78

A degree-day method for residential heating load calculations specifically incorporating the utilization of solar gains  

DOE Green Energy (OSTI)

A simple and well known method of estimating residential heating loads is the variable base degree-day method, in which the steady-state heat loss rate (UA) is multiplied by the degree-days based from the balance temperature of the structure. The balance temperature is a function of the UA as well as the average rate of internal heat gains, reflecting the displacement of the heating requirements by these gains. Currently, the heat gains from solar energy are lumped with those from appliances to estimate an average rate over the day. This ignores the effects of the timing of the gains from solar energy, which are more highly concentrated during daytime hours, hence more frequently exceeding the required space heat and less utilizable than the gains from appliances. Simulations or specialized passive solar energy calculation methods have previously been required to account for this effect. This paper presents curves of the fraction of the absorbed solar energy utilized for displacement of space heat, developed by comparing heating loads calculated using a variable base degree-day method (ignoring solar gains) to heating loads from a large number of detailed DOE-2 simulations. The difference in the loads predicted by the two methods can be interpreted as the utilized solar gains. The solar utilization decreases as the thermal integrity increases, as expected, and the solar utilizations are similar across climates. They can be used to estimate the utilized fraction of the absorbed solar energy and, with the load predicted by the variable base degree-day calculation, form a modified degree-day method that closely reproduces the loads predicted by the DOE-2 simulation model and is simple enough for hand calculations. 6 refs., 6 figs., 2 tabs.

Lucas, R.G.; Pratt, R.G.

1990-09-01T23:59:59.000Z

79

AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT  

E-Print Network (OSTI)

F. Uno, "High Efficiency Solar Panel (HESP)! ', N78 10572,High Efficiency, Long Life Terrestrial Solar Panel", 7 8Ncapabilities, the efficiency of the solar panels, co-

Viswanathan, R.

2011-01-01T23:59:59.000Z

80

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

Science Conference Proceedings (OSTI)

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.

Roberts, D. R.

2009-12-01T23:59:59.000Z

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


81

Dynamic Residential Window prototype  

NLE Websites -- All DOE Office Websites (Extended Search)

to have dynamic seasonal solar control: high solar gains in the winter with high insulation and low solar gains in the summer. Dynamic, high performance products can be based...

82

Future Advanced Windows for Zero-Energy Homes  

NLE Websites -- All DOE Office Websites (Extended Search)

Future Advanced Windows for Zero-Energy Homes Future Advanced Windows for Zero-Energy Homes Title Future Advanced Windows for Zero-Energy Homes Publication Type Conference Paper LBNL Report Number LBNL-51913 Year of Publication 2002 Authors Apte, Joshua S., Dariush K. Arasteh, and Yu Joe Huang Conference Name ASHRAE Transactions Volume 109, pt 2 Date Published 06/2003 Conference Location Kansas City, MO Call Number LBNL-51913 Abstract Over the past 15 years, low-emissivity and other technological improvements have significantly improved the energy efficiency of windows sold in the United States. However, as interest increases in the concept of zero-energy homes-buildings that do not consume any nonrenewable or net energy from the utility grid-even today's highest-performance window products will not be sufficient. This simulation study compares today's typical residential windows, today's most efficient residential windows, and several options for advanced window technologies, including products with improved fixed or static properties and products with dynamic solar heat gain properties. Nine representative window products are examined in eight representative U.S. climates. Annual energy and peak demand impacts are investigated. We conclude that a new generation of window products is necessary for zero-energy homes if windows are not to be an energy drain on these homes. Windows with dynamic solar heat gain properties are found to offer significant potential in reducing energy use and peak demands in northern and central climates, while windows with very low (static) solar heat gain properties offer the most potential in southern climates.

83

AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT  

E-Print Network (OSTI)

Computer ram for Design Performance Analysis of Navigationram, see the attached Hughe s pamphle t ( Appendix F), One window arrangement chosen for an analysis

Viswanathan, R.

2011-01-01T23:59:59.000Z

84

AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT  

E-Print Network (OSTI)

Kreider and F. Kreith, "Solar Heating and Cooling". McGraw-and R. L. Field, "Solar Heating of Buildings and DomesticHeat Storage for Solar Heating Systems", N75-17005 (

Viswanathan, R.

2011-01-01T23:59:59.000Z

85

AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT  

E-Print Network (OSTI)

R. L. Field, "Solar Heating of Buildings and Domestic HotPullium, "Solar Heating and Cooling In Buildings: Air Force7Z LI I Tl Solar Heating and Cooling in Buildings: DATE: May

Viswanathan, R.

2011-01-01T23:59:59.000Z

86

AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT  

E-Print Network (OSTI)

of a Freeze ToLerant Solar Water Heater Using C ross Linkedof a Freeze Tolerant Solar Water Heater Using Crosslinkedof a Freeze- Tolerant Solar Water Heater Using Crosslinked

Viswanathan, R.

2011-01-01T23:59:59.000Z

87

AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT  

E-Print Network (OSTI)

Applications'! , Sharing the Sun, Solar Technology in theAbsorber " , Sharing the Sun, Solar Technology in the 70's,Design ll , Sharing the Sun, Solar Technology in the 70's K,

Viswanathan, R.

2011-01-01T23:59:59.000Z

88

AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT  

E-Print Network (OSTI)

Ks W" Boer, t1Th.e Solar Spectrum at Typical Clear WeatherDifferent Regions of the Solar Spectrum in Degrading an ABS1) transmit the solar spectrum and reflect the infrared,

Viswanathan, R.

2011-01-01T23:59:59.000Z

89

AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT  

E-Print Network (OSTI)

Analysis of NOAA Solar/Weather S", N78 24766 (1977). F, C,Boer, t1Th.e Solar Spectrum at Typical Clear Weather Days",FORM The Solar Spectrum at Typical Clear Weather Days N77-

Viswanathan, R.

2011-01-01T23:59:59.000Z

90

Impact of Solar Heat Gain on Radiant Floor Cooling System Design  

E-Print Network (OSTI)

Y. Chen, The effect of solar radiation on dynamic thermaldependant upon solar radiation, ASHRAE Transactions, (2006)M. Filippi, B.W. Olesen, Solar radiation and cooling load

Feng, Jingjuan Dove; Schiavon, Stefano; Bauman, Fred

2013-01-01T23:59:59.000Z

91

Hodges residence: performance of a direct gain passive solar home in Iowa  

DOE Green Energy (OSTI)

Results are presented for the performance of the Hodges Residence, a 2200-square-foot earth-sheltered direct gain passive solar home in Ames, Iowa, during the 1979-80 heating season, its first occupied season. No night insulation was used on its 500 square feet of double-pane glass. Total auxiliary heat required was 43 GJ (41 MBTU) gross and 26 GJ (25 MBTU) net, amounting, respectively, to 60 and 36 kJ/C/sup 0/-day-m/sup 2/ (2.9 and 1.8 BTU/F/sup 0/-day-ft/sup 2/). The heating season was unusually cloudy and included the cloudiest January in the 21 years of Ames insolation measurements. Results are also presented for the performance of the hollow-core floor which serves as the main storage mass and for the comfort range in the house.

Hodges, L.

1980-01-01T23:59:59.000Z

92

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Dynamic Windows Dynamic Windows Technologies, such as electrochromics, are now available for the residential market. The skylight on the left is switched to the "on" position-reducing glare and solar heat gain. The skylight on the right is switched to the "off" position. Photo: Velux-America and SAGE Electrochromics. The emerging concept for the window of the future is more as a multifunctional "appliance-in-the-wall" rather than simply a static piece of coated glass. These systems include switchable windows and shading systems that have variable optical and thermal properties that can be changed in response to climate and occupant preferences. By actively managing lighting and cooling, smart windows could reduce peak electric loads, increase daylighting benefits throughout the United States, improve

93

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Lower HVAC Costs Lower HVAC Costs HVAC sizing tools Several computation procedures exist for proper sizing of HVAC equipment. The most prominent ones, which are also recommended by the ENERGY STAR Homes program, are ACCA Manual J exit disclaimer and the ASHRAE Handbook of Fundamentals. Factors to be considered: The energy performance of the windows themselves must be considered in load calculations. NFRC-certified window performance values significantly increase the accuracy of these calculations. Window orientation and overhangs must be taken into account. Overhangs are an important factor influencing solar gains through windows. Where internal shades and blinds will be actively used, these should also be accounted for in load calculations. High-performance windows not only provide reduced annual heating and

94

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Exterior Shading Exterior Shading Window Attachments For detailed information on storm windows and other window attachments, visit www.windowattachments.org exit disclaimer , a site supported by Lawrence Berkeley National Laboratory, Building Green, and the U.S. Department of Energy. DOE's Energy Savers You can improve the energy efficiency of existing windows by various additions to an existing window. Awnings exit disclaimer Blinds exit disclaimer Draperies exit disclaimer Overhangs exit disclaimer Shades exit disclaimer Shutters exit disclaimer Awnings in Residential Buildings Study showing that awnings have advantages that contribute to more sustainable buildings. Download Awnings in Residential Buildings exit disclaimer The most effective way of reducing solar heat gain is to block the sun's

95

Passive Solar Design for the Home  

SciTech Connect

This fact sheet provides homeowners with an introduction to passive solar design, which is also called climatic design. It explains how they can use windows, walls, and floors to collect, store, and distribute solar energy to heat their homes in the winter, as well as reject solar heat in the summer. It includes information on heat-movement physics; basic solar design techniques--direct gain, indirect gain (Trombe walls), isolated gain (sunspaces), and design for summer comfort; window options for passive solar; and design cost.

Krigger, J. [Saturn Resource Management (US); Waggoner, T. [National Renewable Energy Lab., Golden, CO (US)

2001-02-14T23:59:59.000Z

96

Design and prototype of a partial window replacement to improve the energy efficiency of 90-year-old MIT buildings  

E-Print Network (OSTI)

The existing windows of the 90-year-old buildings on the main MIT campus are not energy efficient and compromise comfort levels. The single panes of glass allow too much heat transfer and solar heat gain. In addition, the ...

Chen, YunJa

2007-01-01T23:59:59.000Z

97

A First-Generation Prototype Dynamic Residential Window  

NLE Websites -- All DOE Office Websites (Extended Search)

A First-Generation Prototype Dynamic Residential Window A First-Generation Prototype Dynamic Residential Window Title A First-Generation Prototype Dynamic Residential Window Publication Type Report LBNL Report Number LBNL-56075 Year of Publication 2004 Authors Kohler, Christian, Howdy Goudey, and Dariush K. Arasteh Call Number LBNL-56075 Abstract 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 units 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.

98

AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT  

E-Print Network (OSTI)

General) ro space Medicine Aircraft Propulsion and PowerSpace Sciences (General) Spacecraft Instru:mentation Solar Physics Spacecraft Propulsion

Viswanathan, R.

2011-01-01T23:59:59.000Z

99

Window Menu  

Science Conference Proceedings (OSTI)

... 2007. Window Menu. The window menu has been updated: Documentation ... the item. Older Documentation for Window Menu.

100

AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT  

E-Print Network (OSTI)

projects such as home heating and cooling is the overall production cost of converting solarcosts do not project a bright future for this method in solar

Viswanathan, R.

2011-01-01T23:59:59.000Z

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


101

A first-generation prototype dynamic residential window  

E-Print Network (OSTI)

Prototype Dynamic Residential Window Christian Kohler, HowdyGoudey, and Dariush Arasteh Windows and Daylighting Grouphighly efficient dynamic window that maximizes solar heat

Kohler, Christian; Goudey, Howdy; Arasteh, Dariush

2004-01-01T23:59:59.000Z

102

Solar heat gain through fenestration systems containing shading: Summary of procedures for estimating performance from minimal data  

SciTech Connect

The computational methods for calculating the properties of glazing systems containing shading from the properties of their components have been developed, but the measurement standards and property data bases necessary to apply them have not. It is shown that with a drastic simplifying assumption these methods can be used to calculate system solar-optical properties and solar heat gain coefficients for arbitrary glazing systems, while requiring limited data about the shading. Detailed formulas are presented, and performance multipliers are defined for the approximate treatment of simple glazings with shading. As higher accuracy is demanded, the formulas become very complicated.

Klems, Joseph H.

2001-03-01T23:59:59.000Z

103

A Design Guide for Early-Market Electrochromic Windows  

NLE Websites -- All DOE Office Websites (Extended Search)

Early-Market Electrochromic Windows Early-Market Electrochromic Windows Title A Design Guide for Early-Market Electrochromic Windows Publication Type Report LBNL Report Number LBNL-59950 Year of Publication 2006 Authors Lee, Eleanor S., Stephen E. Selkowitz, Robert D. Clear, Dennis L. DiBartolomeo, Joseph H. Klems, Luis L. Fernandes, Gregory J. Ward, Vorapat Inkarojrit, and Mehry Yazdanian Call Number LBNL-59950 Abstract Switchable variable-tint electrochromic windows preserve the view out while modulating transmitted light, glare, and solar heat gains and can reduce energy use and peak demand. To provide designers objective information on the risks and benefits of this technology, this study offers data from simulations, laboratory tests, and a 2.5-year field test of prototype large-area electrochromic windows evaluated under outdoor sun and sky conditions. The study characterized the prototypes in terms of transmittance range, coloring uniformity, switching speed, and control accuracy. It also integrated the windows with a daylighting control system and then used sensors and algorithms to balance energy efficiency and visual comfort, demonstrating the importance of intelligent design and control strategies to provide the best performance. Compared to an efficient low-e window with the same daylighting control system, the electrochromic window showed annual peak cooling load reductions from control of solar heat gains of 19-26% and lighting energy use savings of 48-67% when controlled for visual comfort. Subjects strongly preferred the electrochromic window over the reference window, with preferences related to perceived reductions in glare, reflections on the computer monitor, and window luminance. The EC windows provide provided the benefit of greater access to view year-round. Though not definitive, findings can be of great value to building professionals.

104

Electrochromic sun control coverings for windows  

DOE Green Energy (OSTI)

The 2 billion square meters (m{sup 2}) of building windows in the United States cause a national energy drain almost as large as the energy supply of the Alaskan oil pipeline. Unlike the pipeline, the drain of energy through windows will continue well into the 21st century. A part of this energy drain is due to unwanted sun gain through windows. This is a problem throughout the country in commercial buildings because they generally require air conditioning even in cold climates. New commercial windows create an additional 1600 MW demand for peak electric power in the United States each year. Sun control films, widely used in new windows and as retrofits to old windows, help to mitigate this problem. However, conventional, static solar control films also block sunlight when it is wanted for warmth and daylighting. New electrochromic, switchable, sun-gain-control films now under development will provide more nearly optimal and automatic sun control for added comfort, decreased building operating expense, and greater energy saving. Switchable, electrochromic films can be deposited on polymers at high speeds by plasma enhanced chemical vapor deposition (PECVD) in a process that may be suitable for roll coating. This paper describes the electrochromic coatings and the PECVD processes, and speculates about their adaptability to high-speed roll coating. 8 refs., 3 figs.

Benson, D K; Tracy, C E

1990-04-01T23:59:59.000Z

105

Monitor window  

Science Conference Proceedings (OSTI)

... from the three Info buttons. Text can be typed into the window. The window can be saved to a file (as can all the other text windows). ...

106

Gain Scheduled Control of a Solar Power Plant Tor A. Johansen1  

E-Print Network (OSTI)

a tube where oil is pumped through in order to collect the solar power. The control problem is to keep the temperature of the oil leaving the eld at its desired value by manipulating the oil pump ow rate. It is shown, is described. A eld of parabolic collectors focus the solar radiation onto a tube where oil is pumped through

Johansen, Tor Arne

107

Passive Solar Building Design Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Passive Solar Building Design Basics Passive Solar Building Design Basics Passive Solar Building Design Basics July 30, 2013 - 3:20pm Addthis The difference between a passive solar home and a conventional home is design. Passive solar homes and other buildings are designed to take advantage of the local climate. Passive solar design-also known as climatic design-involves using a building's windows, walls, and floors to collect, store, and distribute solar energy in the form of heat in the winter and reject solar heat in the summer. Learn how passive solar design techniques work. Direct Gain Direct gain is the process by which sunlight directly enters a building through the windows and is absorbed and temporarily stored in massive floors or walls. Indirect Gain Indirect gain is the process by which the sun warms a heat storage

108

CANBUS , ++ WINDOWS.  

E-Print Network (OSTI)

; : .., .., .., .., .., .., .., .., .., .., .., .., .., .., ... . . . 630090 , . . CANBUS , ++ WINDOWS. , CANBUS CAMAC intelligent controllers with CANBUS interface and on software written on C++ in WINDOWS media. Solutions Interface), IXXAT Windows. VCI , , CAN-, .. Windows c #12; VCI

Kozak, Victor R.

109

A Review of Electrochromic Window Performance Factors  

E-Print Network (OSTI)

0.30. The electrochromic windows were controlled to maintainSelkowitz, Solar Energy Mater. 22 (1991) 1. 2. Windows andDaylighting Group, “Window 3.1, A PC Program for Analyzing

Selkowitz Ed, S.E.

2010-01-01T23:59:59.000Z

110

Design goals and challenges for a photovoltaic-powered electrochromic window covering  

DOE Green Energy (OSTI)

An estimated 1.0%-1.5% of the total cooling energy need in U.S. buildings, and 10%-30% of the peak electric utility power demand, is caused by unwanted solar heat-gain through windows. A large fraction of the approximately two billion square meters of building windows in the United States could benefit from the use of some solar gain control strategy. If a cost-effective, retrofit, electrochromic (EC) window covering were available, this energy savings potential could be realized in a relatively short time. A {open_quotes}glue on{close_quotes}, retrofit EC window treatment, similar to conventional static solar-gain control .films, could accelerate the application of this new technology in buildings. However, the costs of electrical wiring for each retrofitted window could dominate the economics of the retrofit decision and slow market acceptance of EC-windows. By incorporating a photovoltaic (PV) power source into the EC window retrofit, this wiring cost could be reduced or eliminated, and the installation of the EC window treatment could be greatly simplified. In this paper, we suggest the use of an integrated, photovoltaic-powered electrochromic (PV-EC) window treatment that can be applied to an existing window in much the same way that conventional, static, solar-gain control films are now applied. This concept is the subject of a new three-year research and development (R&D) project at our laboratory. We present our design concepts and rationale and identify some of the technical challenges involved.

Benson, D.K.; Branz, H.M.

1994-12-01T23:59:59.000Z

111

Reflred - Windows  

Science Conference Proceedings (OSTI)

... data. There are a number of different windows in the system. The choose window lets you select directory and dataset. ...

112

Effects of Soiling and Cleaning on the Reflectance and Solar HeatGain of a Light-Colored Roofing Membrane  

Science Conference Proceedings (OSTI)

A roof with high solar reflectance and high thermalemittance (e.g., a white roof) stays coolin the sun, reducing coolingpower demand in a conditioned building and increasing comfort in anunconditioned building. The high initial solar reflectance of a whitemembrane roof (circa 0.8) can be degraded by deposition of soot, dust,and/or algae to about 0.6 (range 0.3 to 0.8, depending on exposure) Weinvestigate the effects of soiling and cleaning on the solar spectralreflectance and solar absorptance of 15 initially white or light-graymembrane samples taken from roofs across the United States. Soot andorganic carbon were the two identifiable strongly absorbing contaminantson the membranes. Wiping was effective at removing soot, and less so atremoving organic carbon. Rinsing and/or washing removed nearly all of theremaining soil layer, with the exceptions of (a) thin layers of organiccarbon and (b) isolated dark spots of algae. Bleach was required toremove the last two features. The ratio of solar reflectance to unsoiledsolar reflectance (a measure of cleanliness) ranged from 0.41 to 0.89 forthe soiled samples; 0.53to 0.95 for the wiped samples; 0.74 to 0.98 forthe rinsed samples; 0.79 to 1.00 for the washed samples; and 0.94 to 1.02for the bleached samples. However, the influence of membrane soiling andcleaning on roof heat gain is better gauged by variations in solarabsorptance. Relative solar absorptances (indicating solar heat gainrelative to that of the unsoiled membrane) ranged from 1.4 to 3.5 for thesoiled samples; 1.1 to 3.1 for the wiped samples; 1.0 to 2.0 for therinsed samples; 1.0 to 1.9 for the washed samples; and 0.9 to 1.3 for thebleached samples.

Levinson, Ronnen; Berdahl, Paul; Berhe, Asmeret Asefaw; Akbari,Hashem

2005-04-12T23:59:59.000Z

113

Windows with complex shading  

NLE Websites -- All DOE Office Websites (Extended Search)

thermal properties MoWiTT measured system SHGC to check method The transmission of solar energy through a complicated system such as a window with a venetian blind andor...

114

Performance Criteria for Residential Zero Energy Windows  

E-Print Network (OSTI)

orientation. Solar gains in heating dominated climatesand allow in solar heat gain for space heating, and/or theyAdmitting solar heat gain during the heating season to

Arasteh, Dariush; Goudey, Howdy; Huang, Joe; Kohler, Christian; Mitchell, Robin

2006-01-01T23:59:59.000Z

115

Buildings Energy Data Book: 5.2 Windows  

Buildings Energy Data Book (EERE)

8 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) Triple-Glazed (2) with Low-Solar Gain Low-e (1) Glass, Argon/Krypton Gas (3) Note(s): Source(s): The Efficient Windows Collaborative (http://www.efficientwindows.org) 0.14 0.33 0.56 1) Spectrally selective. 2) Includes double glazing with suspended film. 3) Center of glass properties, does not include frame or installation

116

Summer-heat-gain control in passive-solar-heated buildings: fixed horizontal overhangs  

DOE Green Energy (OSTI)

An aspect of passive cooling relates to cooling load reduction by the use of solar controls. When there is a substantial winter heating requirement, and when the winter heating needs are met in part by a passive solar heating system, then the potential aggravation of summer cooling loads by the heating system is an important design issue. A traditional solution is the use of a fixed, horizontal shading overhang. An approach to quantitative design rules for the sizing of a shading overhang to minimize total annual space conditioning energy needs is outlined.

Jones, R.W.

1981-01-01T23:59:59.000Z

117

A New Kind of “Power Window  

Science Conference Proceedings (OSTI)

Nov 5, 2010 ... The material could be used to develop transparent solar panels or even windows that absorb solar energy to generate electricity.

118

A first-generation prototype dynamic residential window  

SciTech Connect

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.

Kohler, Christian; Goudey, Howdy; Arasteh, Dariush

2004-10-26T23:59:59.000Z

119

Reflred - Windows  

Science Conference Proceedings (OSTI)

... The Tcl console window lets you interact directly with Tcl/Tk. The help window lets you browse the help text. 2002-09-13. Browse Index

120

A first-generation prototype dynamic residential window  

E-Print Network (OSTI)

in winter can maximize solar heating effects, savingwhen the house requires heating and solar gain would be anmore of the solar gains to offset heating, unlike our

Kohler, Christian; Goudey, Howdy; Arasteh, Dariush

2004-01-01T23:59:59.000Z

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


121

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

E-Print Network (OSTI)

and spacer effects on window U-value. ASHRAE Transactions,Residential Zero Energy Windows, ASHRAE Transactions, Vol.for low-conductivity window frames, Solar Energy Materials

Gustavsen, Arild

2008-01-01T23:59:59.000Z

122

A Design Guide for Early-Market Electrochromic Windows  

SciTech Connect

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.

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

2006-05-01T23:59:59.000Z

123

Switchable window modeling. Task 12: Building energy analysis and design tools for solar applications, Subtask A.1: High-performance glazing  

SciTech Connect

This document presents the work conducted as part of Subtask A.1, High-Performance Glazing, of Task 12 of the IEA Solar Heating and Cooling Program. At the start of the task, the participants agreed that chromogenic technology (switchable glazing) held considerable promise, and that algorithms to accurately model their dynamic behavior were needed. The purpose of this subtask was to develop algorithms that could be incorporated into building energy analysis programs for predicting the thermal and optical performance of switchable windows. The work entailed a review of current techniques for modelling switchable glazing in windows and switchable windows in buildings and methods for improving upon existing modeling approaches. The proposed approaches correct some of the shortcomings in the existing techniques, and could be adapted for use in other similar programs. The proposed approaches generally provide more detailed calculations needed for evaluating the short-term (hourly and daily) impact of switchable windows on the energy and daylighting performance of a building. Examples of the proposed algorithms are included.

Reilly, S.; Selkowitz, S.; Winkelmann, F.

1992-06-30T23:59:59.000Z

124

Integrated window systems: An advanced energy-efficient residential fenestration product  

SciTech Connect

The last several years have produced a wide variety of new window products aimed at reducing the energy impacts associated with residential windows. Improvements have focused on reducing the rate at which heat flows through the total window product by conduction/convection and thermal radiation (quantified by the U-factor) as well as in controlling solar heat gain (measured by the Solar Heat Gain Coefficient (SHGC) or Shading Coefficient (SC)). Significant improvements in window performance have been made with low-E coated glazings, gas fills in multiple pane windows and with changes in spacer and frame materials and designs. These improvements have been changes to existing design concepts. They have pushed the limits of the individual features and revealed weaknesses. The next generation of windows will have to incorporate new materials and ideas, like recessed night insulation, seasonal sun shades and structural window frames, into the design, manufacturing and construction process, to produce an integrated window system that will be an energy and comfort asset.

Arasteh, D.; Griffith, B.; LaBerge, P.

1994-03-01T23:59:59.000Z

125

Through a window, brightly : modulating daylight and solar radiation in commercial and institutional buildings through the use of architectural elements  

E-Print Network (OSTI)

Natural lighting serves several important functions in buildings. The visual power of a shaft of sunlight penetrating a dark space or the visual beauty of a stained window has long been recognized by architects and designers. ...

Schlereth, Hans-Joachim

1982-01-01T23:59:59.000Z

126

Electrochromic Windows: Advanced Processing Technology  

SciTech Connect

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 SAGE’s 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 (0.026×1015BTU/yr) by the year 2017.

SAGE Electrochromics, Inc

2006-12-13T23:59:59.000Z

127

Window insulator  

SciTech Connect

An insulator for mounting to a window. A pair of plastic layers including a plurality of partitions positioned therebetween form air pockets between the layers. A plurality of suction cups and suction grooves arranged in rows on one outer surface of the sheet removably secure the sheet to a window. The sheet includes a circumferentially extending recessed portion receiving the window frame.

Nesbitt, W. A.

1985-10-01T23:59:59.000Z

128

Advances in glazing materials for windows  

SciTech Connect

No one type of glazing is suitable for every application. Many materials are available that serve different purposes. Moreover, consumers may discover that they need two types of glazing for a home because of the directions that the windows face and the local climate. To make wise purchases, consumers should first examine their heating and cooling needs and prioritize desired features such as daylighting, solar heating, shading, ventilation, and aesthetic value. Research and development into types of glazing have created a new generation of materials that offer improved window efficiency and performance for consumers. While this new generation of glazing materials quickly gains acceptance in the marketplace, the research and development of even more efficient technology continues.

1994-11-01T23:59:59.000Z

129

Vehicle cabin cooling system for capturing and exhausting heated boundary layer air from inner surfaces of solar heated windows  

DOE Patents (OSTI)

The cabin cooling system includes a cooling duct positioned proximate and above upper edges of one or more windows of a vehicle to exhaust hot air as the air is heated by inner surfaces of the windows and forms thin boundary layers of heated air adjacent the heated windows. The cabin cooling system includes at least one fan to draw the hot air into the cooling duct at a flow rate that captures the hot air in the boundary layer without capturing a significant portion of the cooler cabin interior air and to discharge the hot air at a point outside the vehicle cabin, such as the vehicle trunk. In a preferred embodiment, the cooling duct has a cross-sectional area that gradually increases from a distal point to a proximal point to the fan inlet to develop a substantially uniform pressure drop along the length of the cooling duct. Correspondingly, this cross-sectional configuration develops a uniform suction pressure and uniform flow rate at the upper edge of the window to capture the hot air in the boundary layer adjacent each window.

Farrington, Robert B. (Golden, CO); Anderson, Ren (Broomfield, CO)

2001-01-01T23:59:59.000Z

130

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

DOE Green Energy (OSTI)

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.

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

2007-01-01T23:59:59.000Z

131

Window Properties  

NLE Websites -- All DOE Office Websites (Extended Search)

Window Properties: measurements, simulations and ratings Window Properties: measurements, simulations and ratings Determining the thermal and optical performance of window systems is essential to researchers striving to develop improved products and to window manufacturers who need to demonstrate the energy performance of their products to architects, engineers, builders, and the general public. LBNL is involved in basic research in this field, in developing software and test procedures to analyze and quantify window heat transfer and optics, and in developing standards and rating procedures. Infrared Laboratory experiments provide surface temperature maps of window products. A companion Traversing System measures air velocity and air temperatures near the surface of test specimens. The MoWiTT facility provides accurate measurements of the heat flow through complete window systems subjected to real weather conditions. MoWiTT results have been used to validate the performance of emerging technologies and research prototypes as well as to validate thermal performance models.

132

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

SciTech Connect

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.

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

2012-06-01T23:59:59.000Z

133

Measuring solar heat reduction for draperies and fabric shades  

SciTech Connect

We are all familiar with the utility of draperies, curtains and shades to exclude unwanted solar gain, control glare, insulate windows and provide privacy. The manageability of these devices gives us a degree of control over our indoor environment. While fabric window coverings are widely used as interior shading devices, the analytical methods used to determine their effectiveness in reducing solar gains are relatively unsophisticated. Furthermore, with the recent emphasis on daylighting and visual and thermal comfort, the response to these shading devices to the varying direction of incident solar radiation has taken on a new importance. In this article, the authors review the historical development of analytical and experimental methods used to determine solar heat gain for draperies. The current state of these methods will be evaluated and issues related to their applicability to draperies and fabric shades are identified. Finally, recommendations to improve the accuracy and applicability of current solar heat gain methods are presented.

Grasso, M.M.; Hunn, B.D. (Univ. of Texas, Austin, TX (US))

1991-08-01T23:59:59.000Z

134

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

SciTech Connect

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.

Not Available

1992-03-01T23:59:59.000Z

135

Window insulation  

SciTech Connect

Insulating apparatus consisting of a plurality of low thermal conductivity panels slidably carried in a conventional window frame is described. 13 claims.

Saucier, E.

1980-01-01T23:59:59.000Z

136

Reflred - Windows  

Science Conference Proceedings (OSTI)

... reduction. The Tcl console window lets you interact directly with Tcl/Tk. Use it to help configure the application colors, etc. ...

137

RESFEN 3.0: Program Description - a PC program for calculating the heating and cooling energy use of windows in residential buildings  

SciTech Connect

Today`s energy-efficient windows can dramatically lower the heating and cooling costs associated with windows while increasing occupant comfort and minimizing window surface condensation problems. However, consumers are often confused about how to pick the most efficient window for their residence. They are typically given window properties such as U-factors or R-values, Solar Heat Gain Coefficients or Shading Coefficients, and air leakage rates. However, the relative importance of these properties depends on the site and building specific conditions. Furthermore, these properties are based on static evaluation conditions that are very different from the real situation the window will be used in. Knowing the energy and associated cost implications of different windows will help consumers and builders make the best decision for their particular application, whether it is a new home, an addition, or a window replacement. A computer tool such as RESFEN can help consumers and builders pick the most energy-efficient and cost-effective window for a given application. It calculates the heating and cooling energy use and associated costs as well as the peak heating and cooling demand for specific window products. Users define a problem by specifying the house type (single story or two story), geographic location, orientation, electricity and gas cost, and building configuration details (such as wall type, floor type, and HVAC systems). Window options are defined by specifying the window`s size, shading, and thermal properties: U-factor, Solar Heat Gain Coefficient, and air leakage rate. RESFEN calculates the energy and cost implications of the windows compared to insulated walls. The relative energy and cost impacts of two different windows can be compared against each other. RESFEN 3.0 is a major improvement over previous versions of RESFEN because it performs hourly calculations using a version of the DOE 2.1E energy analysis simulation program.

Huang, J.; Sullivan, R.; Arasteh, D.; Mitchell, R.

1997-12-01T23:59:59.000Z

138

Proceedings of the 5th ISES Europe Solar Conf., Freiburg (2004), vol. 2 591 Solar utilisation in low-energy buildings  

E-Print Network (OSTI)

and Solar Energy Walter-Flex-Str. 3, D-57068 Siegen, Germany http://nesa1.uni-siegen.de, e-mail: heidt@physik.uni-siegen.de Abstract For low-energy buildings, passive solar gains can contribute significantly to the heat bal- ance losses, the energy flux through the glazing of windows is denoted as "passive solar gains". In low-energy

Gieseler, Udo D. J.

139

CAVE WINDOW  

DOE Patents (OSTI)

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.

Levenson, M.

1960-10-25T23:59:59.000Z

140

Integrated passive-solar demonstration project. Final report  

Science Conference Proceedings (OSTI)

The objectives of the study reported were to collect data on a combination of several passive solar heating and cooling systems. A passive solar test structure was constructed and monitored and the demonstration of passive systems designed into the structure was evaluated. Passive solar cooling principles include: shading all mass walls and windows from direct solar gain, maintaining cool attic and ceiling temperatures using solar induced ventilation, maintaining cool mean radiant wall temperatures, recirculating internal air, and using natural cross-ventilation through the conditioned space in spring and fall. Passive solar heating principles include: orientation of windows and sunspaces towards the south, providing double pane south windows, providing a double pane solar sunspace, using night insulation over glazing, extended thermal storage mass, and using a fan-forced rock/earth/air storage system. (LEW)

Garrison, M.L.

1982-09-01T23:59:59.000Z

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


141

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Measuring Performance: Air Leakage (AL) Measuring Performance: Air Leakage (AL) Is my window leaking air? The Air Leakage (AL) rating pertains to leakage through the window assembly itself. Air infiltration can also occur around the frame of the window due to poor installation or poor maintenance of existing window systems. Make sure windows are properly installed and maintained (caulking and weatherstripping). Cold glass can create uncomfortable drafts as air next to the window is cooled and drops to the floor. This is not a result of air leaking through or around the window assembly but from a convective loop created when next to a window is cooled and drops to the floor. This air movement can be avoided by installing high-performance windows. Heat loss and gain occur by infiltration through cracks in the window

142

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

DOE Green Energy (OSTI)

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.

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

2011-03-28T23:59:59.000Z

143

Arranging PPP Windows  

Science Conference Proceedings (OSTI)

03/15/2005. Arranging PPP Windows. Suggestions for arranging the two PPP windows: Use Attach / adjust windows.

144

LBNL Windows & Daylighting Software -- WINDOW: System Requirements  

NLE Websites -- All DOE Office Websites (Extended Search)

REQUIREMENTS OPERATING SYSTEM Program has been tested on Microsoft Vista, Microsoft Windows 7, Microsoft Windows XP, Windows 2000TM.. It has been reported by users that the...

145

windows Staff  

NLE Websites -- All DOE Office Websites (Extended Search)

DEPUTY GROUP LEADER Charlie Curcija 495-2602 90-3111 dccurcija@lbl.gov WINDOWS AND DAYLIGHTING STAFF Andre Anders 486-6745 53-004 aanders@lbl.gov Dennis...

146

Energy Efficient Electrochromic Windows Incorporating Ionic Liquids  

SciTech Connect

One approach to increasing the energy efficiency of windows is to control the amount of solar radiation transmitted through a window by using electrochromic technology. What is unique about this project is that the electrochromic is based on the reduction/oxidation reactions of cathodic and anodic organic semi-conducting polymers using room temperature ionic liquids as ion transport electrolytes. It is believed that these types of coatings would be a lower cost alternative to traditional all inorganic thin film based electrochromic technologies. Although there are patents1 based on the proposed technology, it has never been reduced to practice and thoroughly evaluated (i.e. durability and performance) in a window application. We demonstrate that by using organic semi-conductive polymers, specific bands of the solar spectrum (specifically visible and near infrared) can be targeted for electrochemical variable transmittance responsiveness. In addition, when the technology is incorporated into an insulating glass unit, the energy parameters such as the solar heat gain coefficient and the light to solar gain ratio are improved over that of a typical insulating glass unit comprised of glass with a low emissivity coating. A minimum of {approx}0.02 quads of energy savings per year with a reduction of carbon emissions for electricity of {approx}320 MKg/yr benefit is achieved over that of a typical insulating glass unit including a double silver low-E coating. Note that these values include a penalty in the heating season. If this penalty is removed (i.e. in southern climates or commercial structures where cooling is predominate year-round) a maximum energy savings of {approx}0.05 quad per year and {approx}801 MKg/yr can be achieved over that of a typical insulating glass unit including a double silver low-E coating. In its current state, the technology is not durable enough for an exterior window application. The primary downfall is that the redox chemistry fails to recover to a bleached state upon exposure to heat and solar radiation while being cycled over time from the bleached to the dark state. Most likely the polymers are undergoing degradation reactions which are accelerated by heat and solar exposure while in either the reduced or oxidized states and the performance of the polymers is greatly reduced over time. For this technology to succeed in an exterior window application, there needs to be more work done to understand the degradation of the polymers under real-life application conditions such as elevated temperatures and solar exposure so that recommendations for improvements in to the overall system can be made. This will be the key to utilizing this type of technology in any future real-life applications.

Cheri Boykin; James Finley; Donald Anthony; Julianna Knowles; Richard Markovic; Michael Buchanan; Mary Ann Fuhry; Lisa Perrine

2008-11-30T23:59:59.000Z

147

LBNL Windows & Daylighting Software -- WINDOW  

NLE Websites -- All DOE Office Websites (Extended Search)

downloading and installing Optics 6, as it has a few bug fixes and works with Windows 7 and 8. NFRC (National Fenestration Rating Council) will "sunset" use of Optics 5.1...

148

A new method for predicting the solar heat gain of complex fenestration systems: 1, Overview and derivation of the matrix Layer calculation  

SciTech Connect

A new method of predicting the solar heat gain through complex fenestration systems involving nonspecular layers such as shades or blinds has been examined in a project jointly sponsored by ASHRAE and DOE. In this method, a scanning radiometer is used to measure the bidirectional radiative transmittance and reflectance of each layer of a fenestration system. The properties of systems containing these layers are then built up computationally from the measured layer properties using a transmission/multiple-reflection calculation. The calculation produces the total directional-hemispherical transmittance of the fenestration system and the layer-by-layer absorptances. These properties are in turn combined with layer-specific measurements of the inward-flowing fractions of absorbed solar energy to produce the overall solar heat gain coefficient. In this first in a series of related papers describing the project, the assumptions and limitations of the calculation method are described and the derivation of the matrix calculation technique from the initial integral equations is presented.

Klems, J.H.

1993-10-01T23:59:59.000Z

149

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

SciTech Connect

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.

Not Available

1992-03-01T23:59:59.000Z

150

Window shopping  

SciTech Connect

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.

Best, D.

1990-03-01T23:59:59.000Z

151

BSP 930 WINDOWS HANDBOOK  

Science Conference Proceedings (OSTI)

... click Default Computer. When the Default Computer Properties window appears, select Windows NT System, then Logon. ...

152

A first-generation prototype dynamic residential window  

E-Print Network (OSTI)

and high solar heat gain when the building needs heating. Insolar heat gain during the heating season and minimizes solar heat gain during the cooling season in residential buildings.

Kohler, Christian; Goudey, Howdy; Arasteh, Dariush

2004-01-01T23:59:59.000Z

153

Spring Home Maintenance: Windows, Windows, Windows! | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Spring Home Maintenance: Windows, Windows, Windows! 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 leakage around your windows. | Photo courtesy of ©iStockphoto.com/BanksPhotos Caulking is an easy way to reduce air leakage around your windows. | Photo courtesy of ©iStockphoto.com/BanksPhotos Erin Connealy Communications Specialist, Office of Energy Efficiency and Renewable Energy How can I participate? Use these tips for window maintence and treatments to save energy this spring. The beginning of spring marks the point in the year when I'm cleaning, purging the house of things I no longer need, and updating my home on needed repairs. This year, I'm focusing on how to lower my energy bills

154

Spring Home Maintenance: Windows, Windows, Windows! | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Home Maintenance: Windows, Windows, Windows! 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 leakage around your windows. | Photo courtesy of ©iStockphoto.com/BanksPhotos Caulking is an easy way to reduce air leakage around your windows. | Photo courtesy of ©iStockphoto.com/BanksPhotos Erin Connealy Communications Specialist, Office of Energy Efficiency and Renewable Energy How can I participate? Use these tips for window maintence and treatments to save energy this spring. The beginning of spring marks the point in the year when I'm cleaning, purging the house of things I no longer need, and updating my home on needed repairs. This year, I'm focusing on how to lower my energy bills

155

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

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

156

Thickness Effect of Al-Doped ZnO Window Layer on Damp-Heat Stability of CuInGaSe2 Solar Cells  

DOE Green Energy (OSTI)

We investigated the damp heat (DH) stability of CuInGaSe{sub 2} (CIGS) solar cells as a function of thickness of the Al-doped ZnO (AZO) window layer from the 'standard' 0.12 {micro}m to a modest 0.50 {micro}m over an underlying 0.10-{micro}m intrinsic ZnO buffer layer. The CIGS cells were prepared with external electrical contact using fine Au wire to the tiny 'standard' Ni/Al (0.05 {micro}m/3 {micro}m) metal grid contact pads. Bare cell coupons and sample sets encapsulated in a specially designed, Al-frame test structure with an opening for moisture ingress control using a TPT backsheet were exposed to DH at 85 C and 85% relative humidity, and characterized by current-voltage (I-V), quantum efficiency (QE), and (electrochemical) impedance spectroscopy (ECIS). The results show that bare cells exhibited rapid degradation within 50-100 h, accompanied by film wrinkling and delamination and corrosion of Mo and AlNi grid, regardless of AZO thickness. In contrast, the encapsulated cells did not show film wrinkling, delamination, and Mo corrosion after 168 h DH exposure; but the trend of efficiency degradation rate showed a weak correlation to the AZO thickness.

Pern, F. J.; Mansfield, L.; DeHart, C.; Glick, S. H.; Yan, F.; Noufi, R.

2011-01-01T23:59:59.000Z

157

Thickness Effect of Al-Doped ZnO Window Layer on Damp Heat Stability of CuInGaSe2 Solar Cells: Preprint  

DOE Green Energy (OSTI)

We investigated the damp heat (DH) stability of CuInGaSe2 (CIGS) solar cells as a function of thickness of the Al-doped ZnO (AZO) window layer from the 'standard' 0.12 ?m to a modest 0.50 ?m over an underlying 0.10-?m intrinsic ZnO buffer layer. The CIGS cells were prepared with external electrical contact using fine Au wire to the tiny 'standard' Ni/Al (0.05 ?m/3 ?m) metal grid contact pads. Bare cell coupons and sample sets encapsulated in a specially designed, Al-frame test structure with an opening for moisture ingress control using a TPT backsheet were exposed to DH at 85oC and 85% relative humidity, and characterized by current-voltage (I-V), quantum efficiency (QE), and (electrochemical) impedance spectroscopy (ECIS). The results show that bare cells exhibited rapid degradation within 50-100 h, accompanied by film wrinkling and delamination and corrosion of Mo and AlNi grid, regardless of AZO thickness. In contrast, the encapsulated cells did not show film wrinkling, delamination, and Mo corrosion after 168 h DH exposure; but the trend of efficiency degradation rate showed a weak correlation to the AZO thickness.

Pern, F. J.; Mansfield, L.; DeHart, C.; Glick, S. H.; Yan, F.; Noufi, R.

2011-07-01T23:59:59.000Z

158

Integrating window pyranometer for beam daylighting measurements in scale-model buildings  

SciTech Connect

An experimental device has been developed to measure the total amount of solar radiation transmitted through glazed apertures in scale-model buildings. The device, an integrating window pyranometer (IWP), has two distinguishing characteristics: (1) it provides a measure of transmitted solar radiation integrated over a representative portion of the model glazing, accounting for nonuniform radiation distributions; and (2) it is spectrally independent. In applications to scale-model daylighting experiments, the IWP, together with photometric sensors mounted in the model, allows the direct measurement of the fraction of transmitted solar gains reaching the work plane as useful illumination, a convenient measure of the daylighting system performance. The IWP has been developed as part of an outdoor experimental facility to perform beam daylighting measurements in scale-model buildings. In this paper, the integrating window pyranometer is described; the results of calibration tests are presented and evaluated; the advantages and limitations of the device are discussed.

Bauman, F.; Place, W.; Thornton, J.; Howard, T.C.

1985-12-01T23:59:59.000Z

159

Window Energy Efficiency Checklist  

NLE Websites -- All DOE Office Websites (Extended Search)

Window Energy Efficiency Checklist While most new windows have labels indicating their energy properties, such information is not often available for existing windows. Here is a...

160

Zero Energy Windows  

NLE Websites -- All DOE Office Websites (Extended Search)

made standard windows significantly more efficient. However, even if all windows in the stock were replaced with todays efficient products, window energy consumption would still be...

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


161

Advancement of Electrochromic Windows  

E-Print Network (OSTI)

to Electrochromic Windows Attachment 12: Analysis of VisualMarket Electrochromic Windows Attachment 17: Summary ofof the Electrochromic Windows Attachment 4: An Assessment of

2006-01-01T23:59:59.000Z

162

Zero Energy Windows  

E-Print Network (OSTI)

of Electrochromic Windows Controlled for Daylight and Visualof Electrochromic Windows, California Energy Commission /Potential of Electrochromic Windows in the U.S. Commercial

Arasteh, Dariush; Selkowitz, Steve; Apte, Josh; LaFrance, Marc

2006-01-01T23:59:59.000Z

163

Tutorial Design Windows - CECM  

E-Print Network (OSTI)

Tutorial Design Windows: Activity 2: Activity 2 Design Window Return to tutorial. Exercise 1: Exercise 1 Design Window Return to exercises. Exercise 2: Exercise  ...

164

Advancement of Electrochromic Windows  

E-Print Network (OSTI)

Early-Market Electrochromic Windows. LBNL-59950. 17. Summaryof Daylight through Windows. http://www.lrc.rpi.edu/Occupants’ Control of Window Blinds in Private Offices.

2006-01-01T23:59:59.000Z

165

LBNL Windows & Daylighting Software -- WINDOW tutorials  

NLE Websites -- All DOE Office Websites (Extended Search)

Movie) bullet Creating a Window with a Generic Frame in WINDOW 6 or 7 (QuickTime Movie) Advanced Tutorials: bullet Database structure for Shading Systems in WINDOW7 (QuickTime)...

166

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Documentation (all versions) WINDOW 5.0 : bullet WINDOW 5.0 User Manual (3 MB, Adobe PDF format) bullet NFRC THERM 5.2 WINDOW 5.2 Simulation Manual (July 2006) (13 MB, Adobe PDF...

167

New and Underutilized Technology: Smart Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Smart Windows Smart Windows New and Underutilized Technology: Smart Windows October 8, 2013 - 2:55pm Addthis The following information outlines key deployment considerations for smart windows within the Federal sector. Benefits Smart windows are made of electrochromic glass, which uses electrical energy to transition between clear and darkened state to control light and heat gain. Darkened glass transmits less light and reduces heat gain, especially in dual-pane windows. Application Smart windows are appropriate for deployment within most building categories and should be considered in building design, renovation, or during window replacement projects. Key Factors for Deployment Window orientation is a factor that must be considered prior to smart window implementation. Ranking Criteria

168

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

directories. Gas Library Import Fixed a display problem that would occur when importing a Gas Library record from another WINDOW 7 database. Window Library Export Fixed problem...

169

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

CGDB Import Into WINDOW CGDB Import Into WINDOW Updated: 11/14/12 Detailed Instructions for Importing CGDB data into WINDOW These instructions apply to either WINDOW 6 or 7. WINDOW 6 vs WINDOW 7 Because the database structure of WINDOW 6 is different that WINDOW 7, there are different CGDB files to go with each version of WINDOW. There are also different versions of the XML files for each version, because in WINDOW 7 some problems with the files were fixed. Setup of CGDB The CGDB consists of a WINDOW database of records in the Shading Layer, Shade Material Library, and Glass Library, as well as a set of text files for systems that reference BSDF XML files. Database: The installation will put two databases into the "LBNL Shared" directory: (the location will depend on your operating system):

170

Hybrid window layer for photovoltaic cells  

SciTech Connect

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.

Deng, Xunming (Syvania, OH); Liao, Xianbo (Toledo, OH); Du, Wenhui (Toledo, OH)

2011-10-04T23:59:59.000Z

171

Hybrid window layer for photovoltaic cells  

DOE Patents (OSTI)

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.

Deng, Xunming (Syvania, OH)

2010-02-23T23:59:59.000Z

172

Hybrid window layer for photovoltaic cells  

DOE Patents (OSTI)

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.

Deng, Xunming (Sylvania, OH); Liao, Xianbo (Toledo, OH); Du, Wenhui (Toledo, OH)

2011-02-01T23:59:59.000Z

173

Energy-Efficient Window Treatments | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy-Efficient Window Treatments Energy-Efficient Window Treatments Energy-Efficient Window Treatments September 25, 2012 - 9:04am Addthis 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 What does this mean for me? Window treatments can reduce energy use in your home, and are less expensive than purchasing new, energy-efficient windows. In addition to saving energy, window treatments can be aesthetic additions to your home. 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 summer. Window

174

Energy-Efficient Window Treatments | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Window Treatments Window Treatments Energy-Efficient Window Treatments September 25, 2012 - 9:04am Addthis 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 What does this mean for me? Window treatments can reduce energy use in your home, and are less expensive than purchasing new, energy-efficient windows. In addition to saving energy, window treatments can be aesthetic additions to your home. 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 summer. Window

175

Monthly average clear-sky broadband irradiance database for worldwide solar heat gain and building cooling load calculations  

Science Conference Proceedings (OSTI)

This paper establishes the formulation of a new clear-sky solar radiation model appropriate for algorithms calculating cooling loads in buildings. The aim is to replace the ASHRAE clear-sky model of 1967, whose limitations are well known and are reviewed. The new model is derived in two steps. The first step consists of obtaining a reference irradiance dataset from the REST2 model, which uses a high-performance, validated, two-band clear-sky algorithm. REST2 requires detailed inputs about atmospheric conditions such as aerosols, water vapor, ozone, and ground albedo. The development of global atmospheric datasets used as inputs to REST2 is reviewed. For the most part, these datasets are derived from space observations to guarantee universality and accuracy. In the case of aerosols, point-source terrestrial measurements were also used as ground truthing of the satellite data. The second step of the model consists of fits derived from a REST2-based reference irradiance dataset. These fits enable the derivation of compact, but relatively accurate expressions, for beam and diffuse clear-sky irradiance. The fitted expressions require the tabulation of only two pseudo-optical depths for each month of the year. The resulting model, and its tabulated data, are expected to be incorporated in the 2009 edition of the ASHRAE Handbook of Fundamentals. (author)

Gueymard, Christian A. [Solar Consulting Services, P.O. Box 392, Colebrook, NH 03576 (United States); Thevenard, Didier [Numerical Logics Inc., 498 Edenvalley Cres., Waterloo, Ont. (Canada)

2009-11-15T23:59:59.000Z

176

Passive solar potential of a conventional home. Final report  

SciTech Connect

A conventional home not designed for passive solar heating was found to use an average of 61% less natural gas for space heating when compared to four similarly used control homes of identical design during the 1979-1980 heating season in Fort Collins, Colorado. The significant savings are attributed to: (1) passive solar gain through conventional windows; (2) optimum orientation of the home placing windows and doors away from prevailing winds; (3) the use of low-cost insulating window shutters; (4) conventional winterization; and (5) energy-conscious life-styles of the occupants. The payback period for the minor investment made by the owners of the demonstration home was estimated to be approximately two years. The results demonstrate that passive solar has a much greater potential in a conventional home than is currently believed and suggest that all future homes be oriented and constructed for maximum solar exposure.

Waterman, E.L.

1981-01-31T23:59:59.000Z

177

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

(6.3.74 -- February 14, 2012) Release Notes Updated: 02/15/13 If you find bugs, or if you think these have not been fixed, please do not hesitate to send an email to WINDOWHelp@lbl.gov to report your findings. Getting feedback from users is how we improve the program. WINDOW 6.3.74 Program Changes Window LIbrary: Window Types In previous versions of WINDOW 6.3, there were two different Window Type lists, with conflicting ID numbers, which resulted in the possibility of a Window Library made with one set of Window Types would become corrupted (the wrong Window Types assigned) if the database records were imported into a another database with the different Window Type list. To solve this problem, we have added a database "migration" with this version of WINDOW -- when it opens any older database, it will update the Window Types list to have the choices (and IDs) shown below and then it will also update all the Window Library records to map to the new Window Types based on what the records were set to originally.

178

New and Underutilized Technology: Window Films | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Window Films Window Films New and Underutilized Technology: Window Films October 8, 2013 - 2:50pm Addthis The following information outlines key deployment considerations for window films within the Federal sector. Benefits Window films are a spectrally-selective film used to decrease heat gain through a window. Application Window films are appropriate for deployment within most building categories and should be considered in building design, renovation, or during window replacement projects. Key Factors for Deployment Window orientation is a factor that must be considered prior to window film implementation. Ranking Criteria Federal energy savings, cost-effectiveness, and probability of success are ranked 0-5 with 0 representing the lowest ranking and 5 representing the highest ranking. The weighted score is ranked 0-100 with 0 representing the

179

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

WINDOW 6 and THERM 6 Technical Documentation WINDOW 6 and THERM 6 Technical Documentation Algorithm Documentation WINDOW6 and THERM6 implement the ISO 15099 algorithms: bullet ISO 15099 The algorithms in WINDOW6 and THERM6 follow the procedures presented in ISO 15099: "Thermal performance of windows, doors and shading devices - Detailed calculations." See: http://webstore.ansi.org/ansidocstore/product.asp?sku=ISO+15099%3A2003 In addition to implementing ISO 15099 algorithms in WINDOW6 and THERM6, we have added additional capabilities to WINDOW6. The following reports and papers describe these additional capabilities and/or elaborate on ISO15099. bullet Thermal Algorithm Documentation for THERM6: Conrad 5 & Viewer 5 Technical and Programming Documentation June 20, 2006 bullet Thermal Algorithm Documentation for WINDOW6:

180

LBNL Windows & Daylighting Software -- WINDOW  

NLE Websites -- All DOE Office Websites (Extended Search)

WINDOW WINDOW NFRC Certification Version Release Version Beta Version WINDOW 6.3 (For NFRC Certification and modeling Complex Glazing Systems) WINDOW 7.1 For modeling vacuum glazing, deflected glass, vertical venetian blinds and perforated screens WINDOW 7.2 For modeling Cellular Shades, in addition to vacuum glazing, deflected glass, vertical venetian blinds and perforated screens Download WINDOW 6.3 (for NFRC Certification and complex glazing systems) Download WINDOW 7.1 Download WINDOW 7.2 Knowledge Base (Check here first if you are experiencing a problem with the software) Knowledge Base (Check here first if you are experiencing a problem with the software) Knowledge Base (Check here first if you are experiencing a problem with the software) New Features

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


181

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

all the Window Records in a database opened in this new version. Click here for a zip file (called W6mdb.zip) that contains a W6.mdb file for WINDOW 6.3.74 that has the...

182

EERE Roofus' Solar and Efficient Home: Appliances  

NLE Websites -- All DOE Office Websites (Extended Search)

Appliances Front-Loading Washing Machine Electric Meter Lights Solar Car Solar Hot Water Solar Panels Walls Windows Activities Printable Version Appliances Illustration of Roofus,...

183

Residents and windows. 1. Shielding of windows  

SciTech Connect

In order to assess the influence of the shielding of windows performed by occupants in residential buildings on the heat balance of the building, the shielding of 40,000 windows was determined by observation during two heating seasons. It is shown that the demand for privacy has a large effect on the degree of window-shielding. There are also indications that many occupants trying to save energy use window-shielding as one of their means to achieve this.

Lyrberg, M.D.

1983-06-01T23:59:59.000Z

184

Troubleshooting Microsoft Windows XP  

Science Conference Proceedings (OSTI)

From the Publisher:Troubleshooting Microsoft Windows XP provides fast answers to problems that can arise when using the Windows XP Home or Windows XP Professional operating system. The book addresses common issues with the new user interface, the taskbar ...

Stephen W. Sagman

2001-12-01T23:59:59.000Z

185

Introduction Windows and Precomputation  

E-Print Network (OSTI)

Introduction Windows and Precomputation Linear Combinations and Joint Expansions Endomorphisms;Introduction Windows and Precomputation Linear Combinations and Joint Expansions Endomorphisms and Complex Bases Outline 1 Introduction 2 Windows and Precomputation 3 Linear Combinations and Joint Expansions 4

186

Using X Windows  

NLE Websites -- All DOE Office Websites (Extended Search)

option 3 or 510-486-8611 Home For Users Network Connections Using X Windows Using X Windows Introduction X-Windows allows you to display remote applications on...

187

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Considerations for Window Performance Considerations for Window Performance Advanced window technologies can have a major effect on comfort and on the annual energy performance of a house. However, there is a broader and possibly more significant impact of the recent revolution in window performance. Because the new glazing technologies provide highly effective insulating value and solar protection, there are important implications for how a house is designed. There is a long-established set of window design guidelines and assumptions intended to reduce heating and cooling energy use. These are based, in part, on the historical assumption that windows were the weak link in the building envelope. These assumptions frequently created limitations on design freedom or generated conflicts with other performance requirements,

188

Building Energy Software Tools Directory: Window  

NLE Websites -- All DOE Office Websites (Extended Search)

Window Window WINDOW screenshot. Calculates thermal performance of fenestration products; heat transfer analysis method consistent with the rating procedure developed by the National Fenestration Rating Council (NFRC). Screen Shots Keywords fenestration, thermal performance, solar optical characteristics, windows, glazing Validation/Testing N/A Expertise Required Some knowledge about windows. Users 2000+ in the U.S. and abroad. Audience Manufacturers, engineers, architects, researchers, sales personnel. Input Interactive program: user-provided data files for frames (from the THERM program) and glazing layers (from the Optics program) optional. Output Reports for the total window can be saved to disk or printed; files can be generated to be used as input to the DOE-2 and EnergyPlus programs;

189

Chapter 5. Auxiliary Windows  

Science Conference Proceedings (OSTI)

... simultaneously. New ones are created by the New command in the Messages submenu in any OOF2 window's OOF.Windows menu. ...

2013-08-23T23:59:59.000Z

190

Choosing a Residential Window  

NLE Websites -- All DOE Office Websites (Extended Search)

Choosing a Residential Window LBNLs Windows and Daylighting Group provides technical support to government and industry efforts to help consumers and builders choose...

191

Windows 8-Windows Phone applikationsutveckling; Windows 8/Windows Phone application development.  

E-Print Network (OSTI)

?? Den här rapporten beskriver utvecklingen av en applikation för Windows 8 och Windows Phone 8 där fokus ligger på multiplattformsutveckling. Applikationen använder sig av… (more)

Johansson, Henrik

2013-01-01T23:59:59.000Z

192

Windows | Open Energy Information  

Open Energy Info (EERE)

Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon Windows Jump to: navigation, search TODO: Add description List of Windows Incentives...

193

thumbnails for windows  

Science Conference Proceedings (OSTI)

... 4) Cut and paste the above text window into some text editor, and save into the ... Then, in Windows, open the write folder and use 'View / thumbnails'.

194

WINDOW 3. 1: A PC program for analyzing window thermal performance: Program description and tutorial  

SciTech Connect

WINDOW 3.1 is a public-domain computer program developed by the Windows and Daylighting Group at Lawrence Berkeley Laboratory for analyzing heat transfer through window systems. The program uses an iterative technique to calculate the one-dimensional temperature profile across a user-defined window system. From this data, window system performance indices, e.g., U-value and shading coefficients, are calculated. WINDOW 2.0, incorporates several technical additions and many new user-friendly features, while continuing to provide a consistent and versatile heat transfer analysis method. The user can vary environmental conditions, window tilt, number of glazing layers, layer properties (thermal infrared, solar and visible optical properties, and thermal conductance), gap widths, composition of gap gas or gas mixture fill, and spacer and frame materials. 7 refs., 3 figs.

1988-10-01T23:59:59.000Z

195

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Specular Glazing Systems Specular Glazing Systems NFRC THERM 6.3 / WINDOW 6.3 Simulation Manual July 2013: bullet Entire Manual in PDF Format approximate 8 MB Comparison of WINDOW 5 / THERM 5 and WINDOW 6 / THERM 6 Results for Specular Glazing Systems (PDF Format) NFRC WINDOW 6 / THERM 6 Training for Specular Systems (Power Point Presentation, Oct/Nov 2010) Tutorials Complex Glazing Systems bullet WINDOW 6.2 / THERM 6.2 Research Version User Manual (Documents features in WINDOW6 and THERM 6 for modeling complex glazing systems) bullet WINDOW 6.2 / THERM 6.2 Simulation Manual Chapter for Complex Glazing (Draft) This was used for NFRC Simulator training in June 2009, and includes detailed descriptions for modeling venetian blinds between glass and frits. bullet Complex Glazing Summary -- PDF File

196

Windows activation Sergei Striganov  

E-Print Network (OSTI)

Windows activation Sergei Striganov Fermilab July 25, 2007 #12;Beam windows residual activity of irradiated object should be much larger than -ray interaction length (3.7 cm in windows). In such model activation is proportional to star density. For beam size much smaller windows transverse dimension

McDonald, Kirk

197

LBNL Windows & Daylighting Software -- WINDOW5.02: Feature List  

NLE Websites -- All DOE Office Websites (Extended Search)

bullet Window Library: RESFEN5 has a Window Library that allows data for specific windows to be imported from the WINDOW5 program. A default set of WINDOW5 data is installed...

198

High Performance Window Attachments  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

High Performance Window 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 they have widely unknown

199

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

SciTech Connect

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.

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

2012-08-01T23:59:59.000Z

200

Reducing residential cooling requirements through the use of electrochromic windows  

Science Conference Proceedings (OSTI)

This paper presents the results of a study investigating the energy performance of electrochromic windows in a prototypical residential building under a variety of state switching control strategies. We used the DOE-2.1E energy simulation program to analyze the annual cooling energy and peak demand as a function of glazing type, size, and electrochromic control strategy. A single-story ranch-style home located in the cooling-dominated locations of Miami, FL and Phoenix, AZ was simulated. Electrochromic control strategies analyzed were based on incident total solar radiation, space cooling load, and outside air temperature. Our results show that an electrochromic material with a high reflectance in the colored state provides the best performance for all control strategies. On the other hand, electrochromic switching using space cooling load provides the best performance for all the electrochromic materials. The performance of the incident total solar radiation control strategy varies as a function of the values of solar radiation which trigger the bleached and colored states of the electrochromic (setpoint range); i.e., required cooling decreases as the setpoint range decreases; also, performance differences among electrochromics increases. The setpoint range of outside air temperature control of electrochromics must relate to the ambient weather conditions prevalent in a particular location. If the setpoint range is too large, electrochromic cooling performance is very poor. Electrochromics compare favorably to conventional low-E clear glazings that have high solar heat gain coefficients that are used with overhangs. However, low-E tinted glazings with low solar heat gain coefficients can outperform certain electrochromics. Overhangs should be considered as a design option for electrochromics whose state properties do not change significantly between bleached and colored states.

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

1995-05-01T23:59:59.000Z

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


201

SYSTEM ADMINISTRATOR: WINDOWS SERVER 2003  

E-Print Network (OSTI)

SYSTEM ADMINISTRATOR: WINDOWS SERVER 2003 MCSA © 2011 Microsoft Corporation. All rights reserved MCPDMCPD WINDOWS DEVELOPERWEB DEVELOPER Job Role/Achievement Certification Recommended Coursework Student TECHNICIAN: WINDOWS 7 MCITPMCITP SUPPORT TECHNICIAN: WINDOWS VISTA SERVER ADMINISTRATOR: WINDOWS SERVER 2003

Atkinson, Katie

202

The Efficient Window Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

5 5 The Efficient Window Collaborative http://www.efficientwindows.org Energy-efficient windows make up only about 35% of the U.S. residential window market, even though they are cost-effective in approximately 80% or more of all applications. To ensure that efficient windows reach their optimum potential in homes throughout the U.S., the Department of Energy and key players in the U.S. window industry have formed the Efficient Window Collaborative (EWC). The EWC's goal is doubling the market share of efficient windows by 2005. With 31 charter members from the window and glass industries, the EWC is managed jointly by the Washington, D.C.-based Alliance to Save Energy and the Center for Building Science's Windows and Daylighting Group. The EWC serves as a focal point for voluntary

203

LBNL Windows & Daylighting Software -- WINDOW: NFRC info  

NLE Websites -- All DOE Office Websites (Extended Search)

5.2 (5.2.17): July 2003 Download WINDOW 5.2.17 (Glass Library has IGDB version 14.0) Download THERM 5.2.14 This version of WINDOW 5.2 is approved by NFRC for use with the new NFRC...

204

02preview.windows.compreview.windows.com Release Preview  

E-Print Network (OSTI)

02preview.windows.compreview.windows.com Windows 8 Release Preview Product guidepreview.windows.com #12;03 01preview.windows.compreview.windows.com © 2012 Microsoft Corporation. All rights reserved. #12;Contents Windows 7, only better 06 The new Start screen 06 Touch, keyboard, and mouse: seamless integration

Fähndrich, Manuel A.

205

LBNL Windows & Daylighting Software -- WINDOW5.02: Feature List  

NLE Websites -- All DOE Office Websites (Extended Search)

Microsoft Vista and Windows 7 Operating System Issues Last update:071612 12:38 PM The LBNL Windows & Daylighting suite of software programs (WINDOW, THERM, Optics) are installed...

206

LBNL Window & Daylighting Software -- WINDOW 6 Research Version  

NLE Websites -- All DOE Office Websites (Extended Search)

(6.3.9) (6.3.9) October 2010 Last Updated: 11/07/2010 Complex Glazing Features for WINDOW6 The Research Version of WINDOW 6 has the following modeling capabilities: Shading Layer Library: A Shading Layer Library has been added to define shading systems, such as venetian blinds and diffusing layers, which can then be added as layers in the Glazing System Library. Shade Material Library: A Shading Material Library has been added to define materials to be used in the Shading Layer Library. Properties defined in this library include shade material reflectance and absorptance (in the solar, visible and IR wavelengths ranges), as well as the conductivity of the material. Glazing System Library In the “Layers” section of the Glazing System definition, it is now possible to specify either a glass layer or a shading layer. The shading system is chosen from the Shading Layer Library.

207

window.xp  

NLE Websites -- All DOE Office Websites (Extended Search)

New New in Building Energy Efficiency Selecting Windows for Energy Efficiency New window technologies have increased energy benefits and comfort, and have provided more practical options for consumers. This selection guide will help homeowners, architects, and builders take advantage of the expanding window market. The guide contains three sections: an explanation of energy-related window characteristics, a discussion of window energy performance ratings, and a convenient checklist for window selection. S electing the right window for a specific home invariably requires tradeoffs between dif- ferent energy performance features, and with other non-energy issues. An understanding of some basic energy concepts is therefore essential to choosing appropriate windows and skylights. As illustrated on the fol-

208

Safety Share - Window Blinds  

NLE Websites -- All DOE Office Websites (Extended Search)

- Window Blinds On November 17, 2010, an HSS employee was adjusting the window blinds in his office. One might expect this low hazard, routine operation to require little or no...

209

Whole Window Performance Criteria  

NLE Websites -- All DOE Office Websites (Extended Search)

Performance Criteria This graph shows the relationship between whole window U-factor and center of glass U-factor (U-cog) for two window types for two generic frames from the...

210

Active load management with advanced window wall systems: Research and industry perspectives  

SciTech Connect

Advanced window wall systems have the potential to provide demand response by reducing peak electric loads by 20-30% in many commercial buildings through the active control of motorized shading systems, switchable window coatings, operable windows, and ventilated double-skin facade systems. These window strategies involve balancing daylighting and solar heat gains, heat rejection through ventilation, and night-time natural ventilation to achieve space-conditioning and lighting energy use reductions without the negative impacts on occupants associated with other demand responsive (DR) strategies. This paper explores conceptually how advanced window systems fit into the context of active load management programs, which cause customers to directly experience the time-varying costs of their consumption decisions. Technological options are suggested. We present pragmatic criteria that building owners use to determine whether to deploy such strategies. A utility's perspective is given. Industry also provides their perspectives on where the technology is today and what needs to happen to implement such strategies more broadly in the US. While there is significant potential for these advanced window concepts, widespread deployment is unlikely to occur with business-as-usual practice. Technologically, integrated window-lighting-HVAC products are underdeveloped. Implementation is hindered by fragmented labor practices, non-standard communication protocols, and lack of technical expertise. Design tools and information products that quantify energy performance, occupant impacts, reliability, and other pragmatic concerns are not available. Interest within the building industry in sustainability, energy-efficiency, and increased occupant amenity, comfort, and productivity will be the driving factors for these advanced facades in the near term--at least until the dust settles on the deregulated electricity market.

Lee, Eleanor S.; Selkowitz, Stephen E.; Levi, Mark S.; Blanc, Steven L.; McConahey, Erin; McClintock, Maurya; Hakkarainen, Pekka; Sbar, Neil L.; Myser, Michael P.

2002-06-01T23:59:59.000Z

211

Active load management with advanced window wall systems: Research and industry perspectives  

SciTech Connect

Advanced window wall systems have the potential to provide demand response by reducing peak electric loads by 20-30% in many commercial buildings through the active control of motorized shading systems, switchable window coatings, operable windows, and ventilated double-skin facade systems. These window strategies involve balancing daylighting and solar heat gains, heat rejection through ventilation, and night-time natural ventilation to achieve space-conditioning and lighting energy use reductions without the negative impacts on occupants associated with other demand responsive (DR) strategies. This paper explores conceptually how advanced window systems fit into the context of active load management programs, which cause customers to directly experience the time-varying costs of their consumption decisions. Technological options are suggested. We present pragmatic criteria that building owners use to determine whether to deploy such strategies. A utility's perspective is given. Industry also provides their perspectives on where the technology is today and what needs to happen to implement such strategies more broadly in the US. While there is significant potential for these advanced window concepts, widespread deployment is unlikely to occur with business-as-usual practice. Technologically, integrated window-lighting-HVAC products are underdeveloped. Implementation is hindered by fragmented labor practices, non-standard communication protocols, and lack of technical expertise. Design tools and information products that quantify energy performance, occupant impacts, reliability, and other pragmatic concerns are not available. Interest within the building industry in sustainability, energy-efficiency, and increased occupant amenity, comfort, and productivity will be the driving factors for these advanced facades in the near term--at least until the dust settles on the deregulated electricity market.

Lee, Eleanor S.; Selkowitz, Stephen E.; Levi, Mark S.; Blanc, Steven L.; McConahey, Erin; McClintock, Maurya; Hakkarainen, Pekka; Sbar, Neil L.; Myser, Michael P.

2002-06-01T23:59:59.000Z

212

Building Energy Software Tools Directory : Window  

NLE Websites -- All DOE Office Websites (Extended Search)

Window Back to Tool Screenshot of WINDOW definition. Screenshot of WINDOW glass library. Screenshot of WINDOW assembly definition...

213

New Window of Opportunity:  

Science Conference Proceedings (OSTI)

Page 1. New Window of Opportunity: Certificate Transparency - A Certification Authority's Perspective Ben Wilson, SVP DigiCert ...

2013-04-10T23:59:59.000Z

214

Advancement of Electrochromic Windows  

E-Print Network (OSTI)

advanced spectrally selective low-e double-pane windows and the same type of daylighting control system

2006-01-01T23:59:59.000Z

215

Prospects for highly insulating window systems  

SciTech Connect

Windows and other fenestration systems are often considered the weakest links in energy-efficient residences. This opinion is reinforced by building standards, audit guidelines, and standard window performance evaluation techniques geared toward sizing building HVAC equipment. In this paper we show that it should be possible to design highly insulating windows (U < 0.12 Btu/hr-ft/sup 2/-F) with high solar transmittances (SC > 0.6). If we then view annual window performance from the basic perspective of control of energy flows, we conclude that it should thus be possible to develop a new generation of ''super window'' that will outperform the best insulated wall or roof for any orientation even in a northern climate. We review several technical approaches that suggest how such a window system might be designed and built. These include multiglazed windows having one or more low-emittance coatings and gas-filled or evacuated cavities. Another approach uses a layer of transparent silica aerogel, a microporus material having a conductivity in air of about R7 per inch. We conclude by presenting data on annual energy performance in a cold climate for a range of ''super windows''. 8 refs., 6 figs.

Arasteh, D.; Selkowitz, S.

1985-04-01T23:59:59.000Z

216

MoWiTT:Mobile Window Thermal Test Facility  

NLE Websites -- All DOE Office Websites (Extended Search)

0 0 MoWiTT: Mobile Window Thermal Test Facility The window has come a long way since the days when it was a single pane of glass in a wood frame. Low-emissivity windows were designed to help buildings retain some of the energy that would have leaked out of less efficient windows. Designing efficient window-and-frame systems requires accurate measurement of the flow of energy through windows in realistic conditions, a capability provided by the Mobile Window Thermal Test facility. Consisting of a pair of outdoor, room-sized calorimeters, MoWiTT measures the net energy flow through two window samples in side-by-side tests using ambient weather conditions. MoWiTT characterizes the net energy flow as a function of time and measures the temperatures, solar fluxes, and

217

Solar  

Energy.gov (U.S. Department of Energy (DOE))

The U.S. Department of Energy (DOE) leads a large network of researchers and other partners to deliver innovative solar photovoltaic and concentrating solar power technologies that will make solar...

218

Subject Responses to Electrochromic Windows  

E-Print Network (OSTI)

large-area electrochromic windows in commercial buildings”,of electrochromic windows: a pilot study”, Building andceramic electrochromic window: field study results”, Energy

Clear, Robert; Inkarojrit, Vorapat; Lee, Eleanor

2006-01-01T23:59:59.000Z

219

FLUDViz: Installation Instructions for Windows  

Science Conference Proceedings (OSTI)

... Tk for communication between the OpenGL graphics window and the Tcl/Tk control window. ... invokes OpenGL and WGL (Windows GL extensions). ...

220

Chapter 4. The Graphics Window  

Science Conference Proceedings (OSTI)

... OOF2: The Manual. Chapter 4. The Graphics Window. ... Chapter 4. The Graphics Window. ... Figure 4.1 shows the structure of the Graphics Window. ...

2013-07-05T23:59:59.000Z

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


221

Investigation of polycrystalline thin film CuInSe{sub 2} solar cells based on ZnSe windows. Annual subcontract report, 15 February, 1993--14 February, 1994  

DOE Green Energy (OSTI)

This report concerns studies of CIS solar cells based on ZnSe window layers. ZnSe/CIS devices are fabricated by growing ZnSe films by MOCVD onto Siemens CIS and graded absorber substrates. ZnSe films are grown by reacting H{sub 2}Se with a zinc adduct. ZnSe/CIS heterojunctions have been studied by depositing transparent aluminum contacts onto ZnSe. These studies indicate that ZnSe/CIS solar cells can be fabricated with an efficiency greater than 14%. Open circuit voltages are typically larger than 500 mV and the optimum range of ZnSe film thickness for maximum efficiency is between 100 {angstrom} and 250 {angstrom}. Photocurrents are significantly reduced as the film thickness exceeds 250 {angstrom}. Photoluminescence spectroscopy has been utilized to characterize the physical nature of CIS substrate surfaces, and ZnSe-CIS interfaces. These studies indicate that a segregated phase(s) exists at the surface of as received Siemens substrates. Additionally, it is determined that the segregated phase(s) still exist after the ZnSe growth process. To date, sputtered ZnO top contact layers have caused degradation of the photovoltaic properties of the ZnSe/CIS structure. Investigations of the effects of MOCVD grown ZnO upon ZnSe/CIS structures will soon be initiated. To establish the feasibility of ZnSe as a window layer, cells have been fabricated by incorporating a protective layer of CdS between the ZnSe and ZnO. A total area efficiency of 11% was obtained with such a structure.

Olsen, L.C. [Washington State Univ., Richland, WA (United States)

1995-03-01T23:59:59.000Z

222

High-Efficiency Polycrystalline CdTe Thin-Film Solar Cells with an Oxygenated Amorphous CdS (a-CdS:O) Window Layer: Preprint  

DOE Green Energy (OSTI)

In the conventional CdS/CdTe device structure, the poly-CdS window layer has a bandgap of {approx}2.4 eV, which causes absorption in the short-wavelength region. Higher short-circuit current densities (Jsc) can be achieved by reducing the CdS thickness, but this can adversely impact device open-circuit voltage (Voc) and fill factor (FF). Also, poly-CdS film has about 10% lattice mismatch related to the CdTe film, which limits the improvement of device Voc and FF. In this paper, we report a novel window material: oxygenated amorphous CdS film (a-CdS:O) prepared at room temperature by rf sputtering. The a-CdS:O film has a higher optical bandgap (2.5-3.1 eV) than the poly-CdS film and an amorphous structure. The preliminary device results have demonstrated that Jsc of the CdTe device can be greatly improved while maintaining higher Voc and FF. We have fabricated a CdTe cell demonstrating an NREL-confirmed Jsc of 25.85 mA/cm2 and a total-area efficiency of 15.4%.

Wu, X.; Dhere, R. G.; Yan, Y.; Romero, M. J.; Zhang, Y.; Zhou, J.; DeHart, C.; Duda, A.; Perkins, C.; To, B.

2002-05-01T23:59:59.000Z

223

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

to report your findings. Getting feedback from users is how we improve the program. WINDOW 7.2.8 (September 30, 2013) Program Changes TARCOG DLL Changes The TARCOG.DLL file,...

224

Windows and people: a literature survey. Psychological reaction to environments with and without windows  

SciTech Connect

The current need for energy conservation has forced some fundamental re-evaluation of building design. One aspect that has come under much review is that of building fenestration. Although windows provide daylight and ventilation, they also can allow undesirable heat gain and loss. In the past, the provision of light and fresh air were essential functions of windows. A building was uninhabitable without windows. Now however, these functions can be fulfilled by artificial lighting and mechanical ventilation. As a result, a number of people have suggested that a substantial reduction in the size of windows, or their complete elimination is desirable in order to reduce excessive energy consumption. Nevertheless, even though a windowless building might be the best solution for eliminating energy loss through windows, there is considerable evidence that this may not be very desirable for the people in the building. In an attempt to delineate some of the functions of windows, the literature on the reaction to both the presence and the absence of windows was surveyed. In the first section, the psychological reaction to windowless buildings is examined to determine if the absence of windows in a building exerts any noticeable effect upon the occupants' behavior or attitudes. In the second section, the various characteristics of windows are reviewed to define some of their functions and benefits. (123 references) (from Introduction)

Collins, B.L.

1975-06-01T23:59:59.000Z

225

NREL: Learning - Passive Solar  

NLE Websites -- All DOE Office Websites (Extended Search)

each side of a tower. The Zion National Park Visitor Center incorporates passive solar design features, including clerestory windows for daylighting and Trombe walls that absorb...

226

Solar | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

energy efficient windows, wall insulation upgrades, reflective roofing installation and solar water heaters. Commercial customers can qualify for rebates on building envelope...

227

High Performance Windows Volume Purchase: The Windows Volume Purchase RFP  

NLE Websites -- All DOE Office Websites (Extended Search)

The Windows The Windows Volume Purchase RFP to someone by E-mail Share High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Facebook Tweet about High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Twitter Bookmark High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Google Bookmark High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Delicious Rank High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Digg Find More places to share High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on AddThis.com... Home About FAQs Low-E Storm Windows Request for Proposal Contacts For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers

228

Microsoft Windows Embedded Compact Cryptographic ...  

Science Conference Proceedings (OSTI)

Page 1. Microsoft Windows Cryptographic Primitives Library (bcrypt.dll) Security Policy Document ... Microsoft Windows Embedded Compact ...

2013-08-07T23:59:59.000Z

229

Building Energy Software Tools Directory: Window Heat Gain  

NLE Websites -- All DOE Office Websites (Extended Search)

or shading. Contact Company: Sustainable By Design Address: 3631 Bagley Avenue North Seattle, Washington 98103 United States Telephone: +1 (206) 925-9290 Facsimile: +1 (877)...

230

Investigation of the Effect of I-ZnO Window Layer on the Device Performance of the Cd-Free CIGS Based Solar Cells (Poster)  

DOE Green Energy (OSTI)

This research work focuses on preparing Cd-free CIGS based solar cells with intrinsic high resistivity ZnO (I-ZnO) films deposited by metal-organic chemical vapor deposition (MOCVD) technique at different deposition substrate temperature and I-ZnO film thickness, and the effect of the prior treatment of CIGS films by ammonium hydroxide (NH4OH) diluted solution on the device performance.

Hasoon, F. S.; al-Thani, H. A.; Li, X.; Kanevce, A.; Perkins, C.; Asher, S.

2008-05-01T23:59:59.000Z

231

Investigation of the Effect of I-ZnO Window Layer on the Device Performance of the Cd-Free CIGS Based Solar Cells: Preprint  

DOE Green Energy (OSTI)

This paper focuses on preparing Cd-free, CIGS-based solar cells with intrinsic high resistivity ZnO (I-ZnO) films deposited by metal-organic chemical vapor deposition (MOCVD) technique at different deposition substrate temperature and I-ZnO film thickness, and the effect of the prior treatment of CIGS films by ammonium hydroxide (NH4OH) diluted solution on the device performance.

Hasoon, F. S.; Al-Thani, H. A.; Li, X.; Kanevce, A.; Perkins, C.; Asher, S.

2008-05-01T23:59:59.000Z

232

Purchasing Energy-Efficient Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Purchasing Energy-Efficient Windows 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 the light and the rays of the sun and can make even the smallest room seem bright and spacious. Operable windows let fresh air in and stale air out. Windows that are properly selected, well designed and constructed, and properly installed can make a world of difference to a home, helping it to be warm and cozy in the winter, and cool and comfortable in the summer. Yet windows have traditionally been the weak spot in the home's building envelope-that part of the house connected to the outdoors. They can be one of the leading sources of drafts, heat loss (or unwanted heat gain in

233

Purchasing Energy-Efficient Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Purchasing Energy-Efficient Windows 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 the light and the rays of the sun and can make even the smallest room seem bright and spacious. Operable windows let fresh air in and stale air out. Windows that are properly selected, well designed and constructed, and properly installed can make a world of difference to a home, helping it to be warm and cozy in the winter, and cool and comfortable in the summer. Yet windows have traditionally been the weak spot in the home's building envelope-that part of the house connected to the outdoors. They can be one of the leading sources of drafts, heat loss (or unwanted heat gain in

234

Windows and Daylighting  

NLE Websites -- All DOE Office Websites (Extended Search)

Office building exterior Office building exterior Windows and Daylighting Windows research is aimed at improving energy efficiency in buildings and homes across the nation. Research includes: New glazing materials Windows simulation software Advanced high-performance fenestration systems Daylighting technologies Measurement of window properties Windows performance in residential and commercial buildings. Contacts Stephen Selkowitz SESelkowitz@lbl.gov (510) 486-5064 Eleanor Lee ESLee@lbl.gov (510) 486-4997 Charlie Curcija DCCurcija@lbl.gov (510) 495-2602 Links Windows and Daylighting Daylighting the New York Times Headquarters Building Batteries and Fuel Cells Buildings Energy Efficiency Applications Commercial Buildings Cool Roofs and Heat Islands Demand Response Energy Efficiency Program and Market Trends

235

Highly Insulating Windows - Publ  

NLE Websites -- All DOE Office Websites (Extended Search)

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

236

Highly Insulating Window Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

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

237

Windows and Daylighting Group, Lawrence Berkeley National Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Comfort Research Deposition Process Energy Star Field Verification Gas-Filled Panels Infrared Lab Integrated WindowWall LowE and Solar Control MoWiTT Optical data...

238

An Exploratory Energy Analysis of Electrochromic Windows in Small and Medium Office Buildings - Simulated Results Using EnergyPlus  

SciTech Connect

The Department of Energy’s (DOE) Building Technologies Program (BTP) has had an active research program in supporting the development of electrochromic (EC) windows. Electrochromic glazings used in these windows have the capability of varying the transmittance of light and heat in response to an applied voltage. This dynamic property allows these windows to reduce lighting, cooling, and heating energy in buildings where they are employed. The exploratory analysis described in this report examined three different variants of EC glazings, characterized by the amount of visible light and solar heat gain (as measured by the solar heat gain coefficients [SHGC] in their “clear” or transparent states). For these EC glazings, the dynamic range of the SHGC’s between their “dark” (or tinted) state and the clear state were: (0.22 - 0.70, termed “high” SHGC); (0.16 - 0.39, termed “low” SHGC); and (0.13 - 0.19; termed “very low” SHGC). These glazings are compared to conventional (static) glazing that meets the ASHRAE Standard 90.1-2004 energy standard for five different locations in the U.S. All analysis used the EnergyPlus building energy simulation program for modeling EC windows and alternative control strategies. The simulations were conducted for a small and a medium office building, where engineering specifications were taken from the set of Commercial Building Benchmark building models developed by BTP. On the basis of these simulations, total source-level savings in these buildings were estimated to range between 2 to 7%, depending on the amount of window area and building location.

Belzer, David B.

2010-08-01T23:59:59.000Z

239

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Optics 6.0 Optics 6.0 (6.0 -- February 13, 2012) Release Notes Updated: 07/16/12 Program Changes Microsoft Windows 7 / Vista Operating System"Aware" Optics now installs and operates much better under the Microsoft Windows 7 and Vista operating systems. It is no longer necessary to run the "VistaFix" batch file after installing the program. Fixed Bugs If you find bugs, or if you think these have not been fixed, please do not hesitate to send an email to OpticsHelp@lbl.gov to report your findings. Getting feedback from users is how we improve the program. Paths Appear in Tools/Options In the Microsoft Windows 7 / Vista Operating System environments, the program would not display the directory paths in the Tools / Options "File Locations" dialog box. This is now fixed.

240

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Cellular / Honeycomb Shades Cellular / Honeycomb Shades Updated 09/30/2013 It is now possible to model cellular / honeycomb shading systems in the Shading System Library and then add them to a glazing system in the Glazing System Library. NOTE: Before attempting to calculate a glazing system with a cellular shade, you must make the following change to the THERM7.ini file, which is located in C:\Users\Public\LBNL\Settings. Close WINDOW7 before making this change. DocPath=C:\Users\Public\LBNL\WINDOW7\debug Shading Layer Library A cellular / honeycomb shade can now be defined in the Shading Layer Library. Defining this type of shading system requires an XML file which contains information about the cell geometry and the material thermal and optical properties. WINDOW can model two different types of cellular shades:

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


241

Zero Energy Windows  

E-Print Network (OSTI)

systems, such as space conditioning and lighting. Windows2. Table 1: Annual Space-Conditioning Energy Consumption ofquads Table 2: Annual Space-Conditioning Energy Consumption

Arasteh, Dariush; Selkowitz, Steve; Apte, Josh; LaFrance, Marc

2006-01-01T23:59:59.000Z

242

Windows Vistan käyttöönotto organisaatioympäristössä.  

E-Print Network (OSTI)

??Työn tavoitteena oli kehittää menetelmä, jolla Windows Vista- käyttöjärjestelmä voidaan asentaa usealle tietokoneelle samanaikaisesti mahdollisimman tehokkaasti. Lisäksi käyttöönotto täytyi tapahtua automaattisesti, jotta se ei vie… (more)

Kamula, Erkki

2009-01-01T23:59:59.000Z

243

Windows Server 2008 -infrastruktuuri.  

E-Print Network (OSTI)

??Tämä työ käsittelee Windows 2008 -verkkoinfrastrukstuuri-kurssin materiaalin suunnittelua ja testausta. Työ toteutettiin Metropolia Ammattikorkeakoululle keväällä 2010. Työn alussa esitellään työssä käytetty virtuaalisointiohjelmisto ja toiminta, sekä… (more)

Sundgren, Patrik

2011-01-01T23:59:59.000Z

244

ADVANCEMENT OF ELECTROCHROMIC WINDOWS  

NLE Websites -- All DOE Office Websites (Extended Search)

Eleanor Lee, Co-Principal Investigator Steve Marsh, Curtainwall Engineering, Sensors and Instrumentation Robin Mitchell, Window Modeling Thomas Richardson, Ph.D., Material...

245

Section 4.2.1 Windows and Glazing Systems: Greening Federal Facilities...  

NLE Websites -- All DOE Office Websites (Extended Search)

Certified Product Directory are available.) Photo: Warren Gretz NREL's Solar Energy Research Facility is designed to use natural lighting. South-, east-, and west-facing windows...

246

Solar energy collector  

SciTech Connect

An evacuated solar collector receives impinging solar radiation of varying intensity and converts the same into useful thermal energy in a selected working range of the ambience. The collector has absorber and window surfaces selectively coated for rendering the conversion of solar radiation to useful thermal energy more efficient by increasing absorption, reducing reradiation, and in certain cases may include at least one electrically conductive coating on the solar window which is capable of carrying an electric current, for suppressing snow accumulation thereon.

Kenny, N.S.

1980-11-18T23:59:59.000Z

247

Improving the thermal performance of vinyl-framed windows  

Science Conference Proceedings (OSTI)

Over the last five years, vinyl-framed windows have gained an increased market share in both new and retrofit residential construction. This success has been mainly due to their low manufacturing cost and relatively good thermal performance (i.e., total window U-values with double glazing between 0.50 Btu/h{center_dot}ft{sup 2}{center_dot}{degree}F [2.86 W/m{sup 2}{center_dot}K] and 0.30 Btu/h{center_dot}ft{sup 2}{center_dot}{degree}F [1.70 W/m{sup 2}{center_dot}K]). Turning such windows into ``superwindows,`` windows with a U-value of 0.20 Btu/h{center_dot}ft{sup 2}{center_dot}{degree}F (1.14 W/m{sup 2}{center_dot}K) or less that can act as passive solar elements even on north-facing orientations in cold climates, requires further significant decreases in heat transfer through both the glazing system and the frame/edge. Three-layer glazing systems (those with two low-emissivity coatings and a low-conductivity gas fill) offer center-of-glass U-values as low as 0.10 Btu/h{center_dot}ft{sup 2}{center_dot}{degree}F (0.57 W/m{sup 2}{center_dot}K); such glazings are being manufactured today and can be incorporated into existing or new vinyl frame profiles. This paper focuses on the use of a state-of the-art infrared imaging system and a two-dimensional finite-difference model to improve the thermal performance of commercially available vinyl profiles and glazing edge systems. Such evaluation tools are extremely useful in identifying exactly which components and design features limit heat transfer and which act as thermal short circuits. Such an analysis is not possible with conventional whole-window testing in hot boxes where testing uncertainties with superwindows are often greater than proposed improvements.

Beck, F.A.; Arasteh, D.

1992-10-01T23:59:59.000Z

248

Improving the thermal performance of vinyl-framed windows  

Science Conference Proceedings (OSTI)

Over the last five years, vinyl-framed windows have gained an increased market share in both new and retrofit residential construction. This success has been mainly due to their low manufacturing cost and relatively good thermal performance (i.e., total window U-values with double glazing between 0.50 Btu/h[center dot]ft[sup 2][center dot][degree]F [2.86 W/m[sup 2][center dot]K] and 0.30 Btu/h[center dot]ft[sup 2][center dot][degree]F [1.70 W/m[sup 2][center dot]K]). Turning such windows into superwindows,'' windows with a U-value of 0.20 Btu/h[center dot]ft[sup 2][center dot][degree]F (1.14 W/m[sup 2][center dot]K) or less that can act as passive solar elements even on north-facing orientations in cold climates, requires further significant decreases in heat transfer through both the glazing system and the frame/edge. Three-layer glazing systems (those with two low-emissivity coatings and a low-conductivity gas fill) offer center-of-glass U-values as low as 0.10 Btu/h[center dot]ft[sup 2][center dot][degree]F (0.57 W/m[sup 2][center dot]K); such glazings are being manufactured today and can be incorporated into existing or new vinyl frame profiles. This paper focuses on the use of a state-of the-art infrared imaging system and a two-dimensional finite-difference model to improve the thermal performance of commercially available vinyl profiles and glazing edge systems. Such evaluation tools are extremely useful in identifying exactly which components and design features limit heat transfer and which act as thermal short circuits. Such an analysis is not possible with conventional whole-window testing in hot boxes where testing uncertainties with superwindows are often greater than proposed improvements.

Beck, F.A.; Arasteh, D.

1992-10-01T23:59:59.000Z

249

BRAZING THIN BERYLLIUM WINDOWS  

SciTech Connect

Thin, high-vacuum Be windows were vacuum brazed to Cu supports for electronic devices, using small frames of 630-705 deg C In--Cu--Ag brazing alloy. The edges of the Be windows were coated with Cu before brazing. The brazing procedure is described. (D.L.C.)

Papacosta, J.P.; Murdock, D.M.; Crews, R.W.

1962-11-01T23:59:59.000Z

250

Efficient Windows Collaborative  

SciTech Connect

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.

Nils Petermann

2010-02-28T23:59:59.000Z

251

Efficient Windows Collaborative  

SciTech Connect

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.

Nils Petermann

2010-02-28T23:59:59.000Z

252

Window inference in isabelle  

E-Print Network (OSTI)

Window inference is a transformational style of reasoning that provides an intuitive framework for managing context during the transformation of subterms under transitive relations. This report describes the design for a prototype window inference tool in Isabelle, and discusses possible directions for the final tool. 1

Mark Staples

1995-01-01T23:59:59.000Z

253

Highly Insulating Windows - Cost  

NLE Websites -- All DOE Office Websites (Extended Search)

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

254

TRNSYS for windows packages  

SciTech Connect

TRNSYS 14.1 was released in 1994. This package represents a significant step forward in usability due to several graphical utility programs for DOS. These programs include TRNSHELL, which encapsulates TRNSYS functions, PRESIM, which allows the graphical creation of a simulation system, and TRNSED, which allows the easy sharing of simulations. The increase in usability leads to a decrease in the time necessary to prepare the simulation. Most TRNSYS users operate on PC computers with the Windows operating system. Therefore, the next logical step in increased usability was to port the current TRNSYS package to the Windows operating system. Several organizations worked on this conversion that has resulted in two distinct Windows packages. One package closely resembles the DOS version and includes TRNSHELL for Windows and PRESIM for Windows. The other package incorporates a general front-end, called IISIBat, that is a general simulation tool front-end. 8 figs.

Blair, N.J.; Beckman, W.A.; Klein, S.A.; Mitchell, J.W.

1996-09-01T23:59:59.000Z

255

Windows technology assessment  

SciTech Connect

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.

Baron, J.J.

1995-10-01T23:59:59.000Z

256

Insulating window system  

SciTech Connect

An insulating window system is described for use with existing structural windows which consists of: a window track, the track secured to and outlining the structural windows and includes a jaw means, the jaw means includes a pair of spaced jaws, the jaws extending outward from the track and being concaved towards each other forming a semi-oval channel; a glazing frame means having a base member and a pane holder, the base member having two outwardly extending spaced arms, the arms being concaved towards each other forming a semi-oval channel and engaging the jaws when passed there against, for locking the window track and glazing frame means together; the pane holder extending from the glazing frame means and includes an end section and a face section, the face section overlaying the base member with the end section extending therebetween, all forming a glazing channel for securing a glazing pane.

Miller, W.

1986-04-15T23:59:59.000Z

257

A true virtual window  

E-Print Network (OSTI)

Previous research from environmental psychology shows that human well-being suffers in windowless environments in many ways and a window view of nature is psychologically and physiologically beneficial to humans. Current window substitutes, still images and video, lack three dimensional properties necessary for a realistic viewing experience ? primarily motion parallax. We present a new system using a head-coupled display and image-based rendering to simulate a photorealistic artificial window view of nature with motion parallax. Evaluation data obtained from human subjects suggest that the system prototype is a better window substitute than a static image and has significantly more positive effects on observers? moods. The test subjects judged the system prototype as a good simulation of, and acceptable replacement for, a real window, and accorded it much higher ratings for realism and preference than a static image.

Radikovic, Adrijan Silvester

2004-12-01T23:59:59.000Z

258

Window Types | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Window Types Window Types Window Types June 18, 2012 - 8:06am Addthis 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 What does this mean for me? If you have old windows, they are likely losing large amounts of energy through the frames and glazing. By upgrading old windows, you can reduce heating and cooling costs in your home. 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 of the frame can contribute to a window's

259

Window Types | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Window Types Window Types Window Types June 18, 2012 - 8:06am Addthis 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 What does this mean for me? If you have old windows, they are likely losing large amounts of energy through the frames and glazing. By upgrading old windows, you can reduce heating and cooling costs in your home. 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 of the frame can contribute to a window's

260

Selecting windows for energy efficiency  

SciTech Connect

New window technologies have increased energy benefits and comfort, and have provided more practical options for consumers. This selection guide will help homeowners, architects, and builders take advantage of the expanding window market. The guide contains three sections: an explanation of energy-related window characteristics, a discussion of window energy performance ratings, and a convenient checklist for window selection.

1997-05-01T23:59:59.000Z

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


261

Secure Windows Dr. Bernd Borchert  

E-Print Network (OSTI)

Secure Windows Dr. Bernd Borchert WSI für Informatik Univ. Tübingen #12;Problem: Trojans Server Windows" Server (encoding) Internet #12;Server (encoding) Internet Solution: ,,Secure Windows" #12;Server (encoding) Internet Solution: ,,Secure Windows" #12;Server (encoding) Internet Solution: ,,Secure Windows

Borchert, Bernd

262

High Performance Windows Volume Purchase: Subscribe to Windows...  

NLE Websites -- All DOE Office Websites (Extended Search)

Subscribe to Windows Volume Purchase Event News and Updates to someone by E-mail Share High Performance Windows Volume Purchase: Subscribe to Windows Volume Purchase Event News and...

263

Collaborative Sharing of Windows between MacOS X, the X Window System and Windows  

E-Print Network (OSTI)

Collaborative Sharing of Windows between MacOS X, the X Window System and Windows Daniel Stødle This paper investigates how one best can share windows between many different computers in a collaborative application. We present an architecture of a system allowing windows on MacOS X to be shared with computers

Bjørndalen, John Markus

264

Left-over Windows Cause Window Clutter... But What Causes Left-over Windows?  

E-Print Network (OSTI)

Left-over Windows Cause Window Clutter... But What Causes Left-over Windows? Julie Wagner1 that they can return to later. However, users also struggle with window clutter, facing an increasing number of `left-over windows' that get in the way. Our goal is to understand how users create and cope with left

265

The Efficient Windows Collaborative  

SciTech Connect

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.

Petermann, Nils

2006-03-31T23:59:59.000Z

266

Storm Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

windows, and are available in a range of materials. If you have old windows in your home, replacing them with new, energy-efficient windows will most likely return your...

267

Tips: Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Windows Windows Tips: Windows June 18, 2012 - 9:43am Addthis Tips: 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 also account for 10% to 25% of your heating bill by letting heat out. During the summer, your air conditioner must work harder to cool hot air from sunny windows. Install ENERGY STAR®-qualified windows and use curtains and shade to give your air conditioner and energy bill a break. If your home has single-pane windows, consider replacing them with double-pane windows with high-performance glass-low-e or spectrally selective coatings. In colder climates, select gas-filled windows with low-e coatings to reduce heat loss. In warmer climates, select windows with

268

AIR LEAKAGE OF NEWLY INSTALLED RESIDENTIAL WINDOWS  

E-Print Network (OSTI)

Through Sash/Frame Cracks . Window Operation Types . . . . .Window Operation Types . . . . .Air Leakage of Installed Windows Scattergram of Field

Weidt, John

2013-01-01T23:59:59.000Z

269

LBNL Window & Daylighting Software -- RESFEN: System Requirements  

NLE Websites -- All DOE Office Websites (Extended Search)

SYSTEM REQUIREMENTS OPERATING SYSTEM Program has been tested on Microsoft Windows 7, Windows XP, Windows 2000TM.. Older version of Microsoft Windows might work, but are not...

270

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Window Replacement Compare Annual Energy Costs for Replacement Windows in a Typical House Use the Window Selection Tool to compare the annual energy performance of different window...

271

6.2.285. OOF.Windows  

Science Conference Proceedings (OSTI)

... Open or raise the Layer Editor window. OOF.Windows.Messages; OOF.Windows.OOF2 -- Raise the main OOF2 window. ...

2013-07-05T23:59:59.000Z

272

Advancement of Electrochromic Windows  

E-Print Network (OSTI)

Research Energy Systems Integration Advancement ofintegration issues related to using EC windows within a whole building energy efficient systemenergy- savings benefit with EC-daylighting-HVAC integration (assuming a conventional VAV system

2006-01-01T23:59:59.000Z

273

Windows as Luminaires  

NLE Websites -- All DOE Office Websites (Extended Search)

Windows with low-e coatings have already captured a 35% market share in the U.S, with sales of 25 million square meters (270 million square feet) per year. Fig. 1 is based on a...

274

Laser having improved windows  

SciTech Connect

A discharge tube for a gaseous laser is terminated with windows made of crystalline quartz which do not fluoresce in the presence of high energy, visible and ultraviolet light radiation.

Alves, R.W.; Costich, V.R.

1976-11-23T23:59:59.000Z

275

Walls and Windows  

SciTech Connect

Energy travels in and out of a building through the walls and windows by means of conduction, convection, and radiation. The walls and windows, complex systems in themselves, are part of the overall building system. A wall system is composed of multiple layers that work in concert to provide shelter from the exterior weather. Wall systems vary in the degree to which they provide thermal resistance, moisture resistance, durability, and thermal storage. High tech windows are now available that can resist radiation heat transfer while still providing light and visibility. The combination of walls and windows within the building system can be adapted to meet a wide range of environmental conditions, recognizing that the best building envelope system for one climate may not be the first choice for another location.

Stovall, Therese K [ORNL

2007-01-01T23:59:59.000Z

276

Superconductive radiofrequency window assembly  

DOE Patents (OSTI)

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.

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

1998-05-19T23:59:59.000Z

277

Superconducting radiofrequency window assembly  

DOE Patents (OSTI)

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.

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

1997-03-11T23:59:59.000Z

278

Seeing Windows Through  

NLE Websites -- All DOE Office Websites (Extended Search)

8 8 Seeing Windows Through A profusion of gases, glazings, and gap sizes are among the factors that confound efforts to measure the energy performance of a window or skylight. The increasing variety of efficiency-enhancing options for windows and their frames poses a formidable challenge to builders, utilities, code officials, and consumers. Fortunately, a new system for accurately rating and labeling these products promises to help demystify them and to foster nationwide improvements in energy efficiency. NFRC is Born Window trade groups have historically organized around specific materials or components (such as glass or frames), and energy has rarely been their focal point. This changed in 1989 with the formation of the National Fenestration Rating Council. One impetus behind the industry's

279

Available Technologies: Superinsulated Commercial Window ...  

Superinsulated Commercial Window Framing System. IB-3155. APPLICATIONS OF TECHNOLOGY: Window and façade framing systems for non-residential building c ...

280

LBNL Window & Daylighting Software -- RESFEN  

NLE Websites -- All DOE Office Websites (Extended Search)

cooling costs associated with windows while increasing occupant comfort and minimizing window surface condensation problems. However, consumers are often confused about how to pick...

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


281

Windows Installation Notes for EXPGUI  

Science Conference Proceedings (OSTI)

... a DOS window to run gsaskit.exe and an unzip program (for example Winzip) to unpack Tcl/Tk and EXPGUI. For newer versions of Windows, the ...

282

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Improved Comfort Improved Comfort Comfort High performance windows with new glazing technologies not only reduce energy costs but make homes more comfortable as well. During cold weather, exterior temperatures drive interior glass surface temperatures down below the room air temperature; how low the glass temperature drops depends on the window's insulating quality. If people are exposed to the effects of a cold surface, they can experience significant radiant heat loss to that cold surface and they feel uncomfortable, even if the room air temperature is comfortable. When the interior glass surface temperature is 52ËšF or less, it is most likely that there will be discomfort. During warm weather, solar radiation can cause discomfort. Just as people turn up the heat to compensate for cold windows in cold weather, they may use

283

Self-sealing solar collector shield  

SciTech Connect

Window structure for a solar collector shield or the like having a frame defining a row of separate window openings. A selfcontained window unit is installed in each opening. Each window unit comprises a pair of rectangular glass panes held in laterally spaced parallel relation by a peripheral window frame. A mounting frame is provided for mounting each window unit in its window opening. Each mounting frame has overlapping frame members. Adjacent side frame members of adjacent window units also overlap. The overlap is for the purpose of excluding moisture and preventing heat loss. A peripheral window seal is provided for the same purpose.

Katona, J.W.

1980-03-25T23:59:59.000Z

284

Window Daylighting Demo  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Window Daylighting Demo: Window Daylighting Demo: Accelerated Deployment of Daylighting and Shading Systems Stephen Selkowitz Lawrence Berkeley National Laboratory seselkowitz@lbl.gov 510-486-5064 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: * Façade has large energy impacts. Cooling and lighting average ~ 40% of energy use in commercial buildings and often >50% in peak electric demand. * Many glazing/shading/daylighting options exist, but selecting the "best" solution is

285

Window Daylighting Demo  

NLE Websites -- All DOE Office Websites (Extended Search)

Window Daylighting Demo: Window Daylighting Demo: Accelerated Deployment of Daylighting and Shading Systems Stephen Selkowitz Lawrence Berkeley National Laboratory seselkowitz@lbl.gov 510-486-5064 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: * Façade has large energy impacts. Cooling and lighting average ~ 40% of energy use in commercial buildings and often >50% in peak electric demand. * Many glazing/shading/daylighting options exist, but selecting the "best" solution is

286

Energy-efficient windows  

SciTech Connect

This fact sheet describes energy efficient windows for the reduction of home heating and cooling energy consumption. It discusses controlling air leaks by caulking and weatherstripping and by replacing window frames. Reducing heat loss and condensation is discussed by describing the types of glazing materials, the number of glass and air spaces, frame and spacer materials, and the use of movable insulation (shutters, drapes, etc.). A resource list is provided for further information.

1994-10-01T23:59:59.000Z

287

Delineating the conformal window  

E-Print Network (OSTI)

We identify and characterise the conformal window in gauge theories relevant for beyond the standard model building, e.g. Technicolour, using the criteria of metric confinement and causal analytic couplings, which are known to be consistent with the phase diagram of supersymmetric QCD from Seiberg duality. Using these criteria we find perturbation theory to be consistent throughout the predicted conformal window for several of these gauge theories and we discuss recent lattice results in the light of our findings.

Mads T. Frandsen; Thomas Pickup; Michael Teper

2010-07-09T23:59:59.000Z

288

Measuring solar reflectance-Part I: Defining a metric that accurately...  

NLE Websites -- All DOE Office Websites (Extended Search)

I: Defining a metric that accurately predicts solar heat gain Title Measuring solar reflectance-Part I: Defining a metric that accurately predicts solar heat gain Publication Type...

289

Storm Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Storm Windows Storm Windows Storm Windows June 18, 2012 - 8:20am Addthis An energy upgrade on this daycare center included 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 daycare center included interior storm windows because most of the windows are on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney,

290

Storm Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Storm Windows Storm Windows Storm Windows June 18, 2012 - 8:20am Addthis An energy upgrade on this daycare center included 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 daycare center included interior storm windows because most of the windows are on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney,

291

An expert system for window glazing design  

SciTech Connect

An integrated expert system was developed to facilitate the design of window glass for structural strength, hydrostatic loads, sound attenuation, and solar control. The integrated software consists of a text-based interface, a rule-based expert system, and two neural networks. The text of a glazing design guide is linked by related topics and concepts. The software's design feature lets the user enter design parameters for the window choice via an interactive consultation in to a rule-based expert system that critiques the design. The technical aspects of the glass's structural strength are based primarily on linear methods published by the American Architectural Manufacturers Association Statistical correlations for the new nonlinear failure prediction for glass strength are used to automatically design for the minimum glass thickness required to withstand a specified load. Neural networks estimate values for sound attenuation and solar transmission characteristics from laboratory test data on selected glass constructions.

Foss, R.V. (E.I. duPont de Nemours and Co., Parkersburg, WV (US)); Droste, D.H.

1990-01-01T23:59:59.000Z

292

Solar Textiles For the Home.  

E-Print Network (OSTI)

??Solar Textiles came out of the idea that everyone has windows in their homes which need to be shaded. The question was simple, why are… (more)

Cosman, Brienne E

2011-01-01T23:59:59.000Z

293

Modeling Windows in Energy Plus with Simple Performance Indices  

Science Conference Proceedings (OSTI)

The building energy simulation program, Energy Plus (E+), cannot use standard window performance indices (U, SHGC, VT) to model window energy impacts. Rather, E+ uses more accurate methods which require a physical description of the window. E+ needs to be able to accept U and SHGC indices as window descriptors because, often, these are all that is known about a window and because building codes, standards, and voluntary programs are developed using these terms. This paper outlines a procedure, developed for E+, which will allow it to use standard window performance indices to model window energy impacts. In this 'Block' model, a given U, SHGC, VT are mapped to the properties of a fictitious 'layer' in E+. For thermal conductance calculations, the 'Block' functions as a single solid layer. For solar optical calculations, the model begins by defining a solar transmittance (Ts) at normal incidence based on the SHGC. For properties at non-normal incidence angles, the 'Block' takes on the angular properties of multiple glazing layers; the number and type of layers defined by the U and SHGC. While this procedure is specific to E+, parts of it may have applicability to other window/building simulation programs.

Arasteh, Dariush; Kohler, Christian; Griffith, Brent

2009-10-12T23:59:59.000Z

294

Windows: Technical paper with comments  

SciTech Connect

Functional requirements of windows are examined including window location; hardware design, operation, and placement; energy conservation needs; and egress requirements. Basic window styles and design characteristics are described. Problems confronting persons with disabilities are identified and recommendations are made on the development of minimum functional and safety specifications for windows.

Woods, W.

1984-09-01T23:59:59.000Z

295

Why packages? The Windows tools  

E-Print Network (OSTI)

Why packages? The Windows tools A sample package Going further Package Development in Windows from August 13, 2008; updated November 23, 2012 1 of 45 #12;Why packages? The Windows tools A sample of packages 2 The Windows tools The main tools Missing pieces Installing the tools 3 A sample package Getting

Murdoch, Duncan

296

Highly Insulating Windows - Fram  

NLE Websites -- All DOE Office Websites (Extended Search)

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

297

Investigation of polycrystalline thin-film CuInSe{sub 2} solar cells based on ZnSe windows. Annual subcontract report, 15 Febraury 1992--14 February 1993  

DOE Green Energy (OSTI)

Investigations of ZnSe/CIS solar cells are being carried out in an effort to improve the efficiencies CIS cells and to determine if ZnSe is a viable alternative to CdS as a window material. MOCVD growth of ZnSe is accomplished in a SPIRE 500XT reactor housed in the Electronic Materials Laboratory at WSU Tri-Cities by reacting a zinc adduct with H{sub 2}Se. Conductive n-type ZnSe is grown by using iodine as a dopant. Ethyliodide was mixed with helium and installed on one of the gas lines to the system. ZnSe films have been grown on CIS substrates at 200{degrees}C to 250{degrees}C. ZnO is also being deposited by MOCVD by reacting tetrahydrofuran (THF) with a zinc adduct. ZnSe/CIS heterojunctions have been studied by growing n-ZnSe films onto 2 cm x 2 cm CIS substrates diced from materials supplied by Siemens and then depositing an array of aluminum circular areas 2.8.mm in diameter on top of the ZnSe to serve as contacts. Al films are deposited with a thickness of 80 to l00 {angstrom}so that light can pass through the film, thus allowing the illuminated characteristics of the ZnSe/CIS junction to be tested. Accounting for the 20 to 25 % transmittance through the Al film into the ZnSe/CIS structure, current devices have estimated, active-area AM1.5 efficiencies of 14 %. Open circuit voltages > 500 mV are often attained.

Olsen, L C [Washington State Univ. at Tri-Cities, Richland, WA (United States)

1994-05-01T23:59:59.000Z

298

Starburst99 for Windows  

E-Print Network (OSTI)

We describe a Windows compatible version of the evolutionary synthesis code Starburst99. Starburst99 for Windows was developed from the public UNIX based version at STScI. We converted the original Fortran77 source code into a version for a Win32 environment with an Absoft Fortran Pro x86 compiler. Extensive testing showed no significant numerical differences in comparison with the previous UNIX version. The software application consists of the source code, executable, and a number of auxiliary files. The package installs on any PC running Windows 2000, XP, or Vista and can be obtained as freeware at http://www.stsci.edu/science/starburst/PCStarburst99.html. We give an overview of the different running modes and provide instructions for getting started with the initial set-up.

Claus Leitherer; Julia Chen

2008-11-14T23:59:59.000Z

299

Guide to Passive Solar Home Design  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Elements of Passive Solar Design Elements of Passive Solar Design To design a completely passive solar home, you need to incorporate what are considered the five elements of passive solar design: 1. Aperture (Windows) - Windows should face within 30 degrees of true south, and during winter months they should not be shaded from 9 a.m. to 3 p.m. The windows in living areas should face south, while the windows in bedrooms should face north. In colder climates, reduce the window area

300

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

2 2 (7.2.29 -- December 29 2013) Release Notes Updated: 12/29/13 If you find bugs, or have comments about this version, please do not hesitate to send an email to WINDOWHelp@lbl.gov to report your findings. Getting feedback from users is how we improve the program. WINDOW 7.2.29 (December 29, 2013) Program Changes Glazing System Shading System Details For shading system in a Glazing System Library construction, the emittances, conductance and TIR are not displayed, as they are only available after a calculation has been completed. Perforated Screens An input value for "Effective Openness Factor" has been added to the Shading Layer Library for perforated screens. At a future date, we will update the program to calculate this value automatically.

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


301

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Deflection Modeling Deflection Modeling It is now possible to model the effects of glass deflection in WINDOW 7. Glazing System Library The Glazing System Library is where the deflection modeling input values are entered. When the "Model Deflection" box is checked, a Deflection input box appears. When the Glazing System is calculated, two rows of results, one for the undeflected state and one for the deflected state, appear for Center of Glass Results, Temperature Data and Angular data. In addition, a Deflection tab appears, which shows the deflection of each glass layer and the resulting gap width for each gap. Glazing System Deflect Input There are two options for defining the deflection in a glazing system, by choosing from the "Input" pulldown list:

302

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Vacuum Glazing Modeling Vacuum Glazing Modeling It is now possible to model vacuum glazing in WINDOW 7. The first step is to define a new vacuum "gap" in the "Gap Library" (formerly the Gas Library). Then that vacuum gap is used in a glazing system to calculate the thermal characteristics of the glazing system with a vacuum gap. Gap Library The Gas Library has been renamed the Gap Library. To define a vacuum gap, check the "Vacuum" checkbox (this is only available for single gases, not gas mixtures). When this box is checked, new input variables will appear, including the vacuum pressure, the specific heat ratio and molecular weight of the vacuum gas. It is also necessary to define a pillar system for the vacuum gap. Pillar Definition Double click the double arrow to the right of the Pillar Definition pulldown to define a new pillar system. Define the shape and dimensions of the pillar system.

303

LBNL Window & Daylighting Software -- RESFEN: System Requirements  

NLE Websites -- All DOE Office Websites (Extended Search)

SYSTEM REQUIREMENTS OPERATING SYSTEM Windows 95, Windows 98, Windows 2000, Windows XP, or Windows NT CPU TYPE Pentium (a 133 MHz pentium will take about 40 seconds to perform a...

304

DOE-2 Input File From WINDOW  

NLE Websites -- All DOE Office Websites (Extended Search)

a DOE2 input file from WINDOW 5 Last update: 02012008 01:19 PM Creating a DOE-2 Input File for One Window In the WINDOW Window Library, which defines a complete window including...

305

Vacuum Window Glazings for Energy-Efficient Buildings : Summary Report.  

SciTech Connect

The technical feasibility of a patented, laser-welded, evacuated insulating window was studies. The window has two edge-sealed sheets of glass separated by 0.5-mm glass spheres spaced 30 mm apart in a regular array. A highly insulating frame is required and several designs were analyzed. The vacuum window's combination of high solar transmittance and low thermal conductance makes it superior to many other windows in cold climates. In the US Pacific Northwest, the vacuum window could save about 6 MJ of heating energy annually per square meter of window in comparison to conventional, double-glazed windows. A large, vacuum laser-welding facility was designed and installed to conduct glass welding experiments and to fabricate full-sized vacuum windows. Experiments confirmed the feasibility of laser-sealing glass in vacuum but identified two difficulties. Under some circumstances, bubbles of dissolved gases form during welding and weaken the seal. Glass also vaporizes and contaminates the laser beam steering mirror. A novel moving metal foil mirror was developed to circumvent the contamination problem, but is has not yet been used to complete welding experiments and fabricate full-sized vacuum windows. 63 refs., 53 figs., 19 tabs.

Benson, David K.

1990-05-01T23:59:59.000Z

306

Vacuum window glazings for energy-efficient buildings  

Science Conference Proceedings (OSTI)

The technical feasibility of a patented, laser-welded, evacuated insulating window was studied. The window has two edge-sealed sheets of glass separated by 0.5-mm glass spheres spaced 30 mm apart in a regular array. A highly insulating frame is required and several designs were analyzed. The vacuum window's combination of high solar transmittance and low thermal conductance makes it superior to many other windows in cold climates. In the US Pacific Northwest, the vacuum window could save about 6 MJ of heating energy annually per square meter of window in comparison to conventional, double-glazed windows. A large, vacuum laser-welding facility was designed and installed to conduct glass welding experiments and to fabricate full-sized vacuum windows. Experiments confirmed the feasibility of laser-sealing glass in vacuum but identified two difficulties. Under some circumstances, bubbles of dissolved gases form during welding and weaken the seal. Glass also vaporizes and contaminates the laser beam steering mirror. A novel moving metal foil mirror was developed to circumvent the contamination problem, but it has not yet been used to complete welding experiments and fabricate full-sized vacuum windows. 63 refs., 53 figs., 19 tabs.

Benson, D.K.; Smith, L.K.; Tracy, C.E.; Potter, T.; Christensen, C. (Solar Energy Research Inst., Golden, CO (USA)); Soule, D.E. (Western Illinois Univ., Macomb, IL (USA))

1990-05-01T23:59:59.000Z

307

Energy Basics: Passive Solar Design  

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

using a building's windows, walls, and floors to collect, store, and distribute solar energy in the form of heat in the winter and reject solar heat in the summer. Learn how...

308

Calcium fluoride window mounting  

SciTech Connect

A technique has been developed for joining a large calcium fluoride crystal to a stainless-steel flange by means of a silver transition ring. The process involves both vacuum brazing using a copper-silver alloy and air brazing using silver chloride. This paper describes the procedure used in fabricating a high-vacuum leak-tight calcium fluoride window assembly.

Berger, D.D.

1982-10-01T23:59:59.000Z

309

Windows and lighting program  

SciTech Connect

More than 30% of all energy use in buildings is attributable to two sources: windows and lighting. Together they account for annual consumer energy expenditures of more than $50 billion. Each affects not only energy use by other major building systems, but also comfort and productivity -- factors that influence building economics far more than does direct energy consumption alone. Windows play a unique role in the building envelope, physically separating the conditioned space from the world outside without sacrificing vital visual contact. Throughout the indoor environment, lighting systems facilitate a variety of tasks associated with a wide range of visual requirements while defining the luminous qualities of the indoor environment. Windows and lighting are thus essential components of any comprehensive building science program. Despite important achievements in reducing building energy consumption over the past decade, significant additional savings are still possible. These will come from two complementary strategies: (1) improve building designs so that they effectively apply existing technologies and extend the market penetration of these technologies; and (2) develop advanced technologies that increase the savings potential of each application. Both the Windows and Daylighting Group and the Lighting System Research Group have made substantial contributions in each of these areas, and continue to do so through the ongoing research summarized here. 23 refs., 16 figs.

1990-06-01T23:59:59.000Z

310

Window To The Stars  

E-Print Network (OSTI)

We present Window To The Stars, a graphical user interface to the popular TWIN single/binary stellar evolution code, for novices, students and professional astrophysicists. It removes the drudgery associated with the traditional approach to running the code, while maintaining the power, output quality and flexibility a modern stellar evolutionist requires. It is currently being used for cutting edge research and interactive teaching.

Robert G. Izzard; Evert Glebbeek

2006-07-27T23:59:59.000Z

311

Superconducting radiofrequency window assembly  

DOE Patents (OSTI)

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.

Phillips, Harry L. (Seaford, VA); Elliott, Thomas S. (Yorktown, VA)

1997-01-01T23:59:59.000Z

312

Superconductive radiofrequency window assembly  

DOE Patents (OSTI)

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.

Phillips, Harry Lawrence (Seaford, VA); Elliott, Thomas S. (Yorktown, VA)

1998-01-01T23:59:59.000Z

313

The Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

west are usually the least favorable orientations since they permit little control over solar radiation. A south ori- entation is most likely to permit daylighting throughout the...

314

High Performance Solar Control Office Windows  

E-Print Network (OSTI)

Testing For the first four systems investigated (brass-SiO ' brass-AI 0 , Z Z 3 Al- Si0 , AI-AI ), families ofP substrate II Z3 R&T vs A; Brass-SiO II Z ; G substrate II

King, William J.

2011-01-01T23:59:59.000Z

315

High Performance Solar Control Office Windows  

E-Print Network (OSTI)

was organized to conduct reflectivity investigations in thenecessary to conduct a detailed investigation of thewas to conduct a broadly based systematic investigation to

King, William J.

2011-01-01T23:59:59.000Z

316

High Performance Solar Control Office Windows  

E-Print Network (OSTI)

has the most critical energy problem in the sense that it ispresent a particular problem in energy conservation sinceequal or exceed energy consumption, Obviously the problem of

King, William J.

2011-01-01T23:59:59.000Z

317

High Performance Solar Control Office Windows  

E-Print Network (OSTI)

boratory University of California/Berkeley r t::;t:; r I thefor LAWRENCE BERKELEY LABORATORY UNIVERSITY OF CALIFORNIA Berkeley, California 94701 This work was performed for the

King, William J.

2011-01-01T23:59:59.000Z

318

Evaluation of integrated wall systems incorporating electrochromic windows [Final report  

SciTech Connect

Billions of dollars are spent annually in the U.S. on energy lost through the use of inefficient windows. Even wall systems with advanced static glazings and moveable shading devices are not optimal because they can't effectively respond to changing solar conditions. Electrochromic (EC) smart windows can dynamically control the amount of solar light and heat entering a building. The energy saving performance of fully dynamic wall systems containing EC windows was compared with that of static systems using the DOE 2.1E building simulation program. Total costs for different scenarios were computed. SAGE demonstrated the capability to produce double pane EC windows in which the transmittance repeatedly varied between 2-58%. Relative impact of EC glazings in buildings compared to static is 10-20% energy savings across all climatic regions investigated. Significant life cycle cost savings are predicted for SAGE's EC windows when compared to conventional solar control windows over an estimated product lifetime of 20 years.

Sbar, Neil L.

2001-03-30T23:59:59.000Z

319

Evaluation of integrated wall systems incorporating electrochromic windows [Final report  

DOE Green Energy (OSTI)

Billions of dollars are spent annually in the U.S. on energy lost through the use of inefficient windows. Even wall systems with advanced static glazings and moveable shading devices are not optimal because they can't effectively respond to changing solar conditions. Electrochromic (EC) smart windows can dynamically control the amount of solar light and heat entering a building. The energy saving performance of fully dynamic wall systems containing EC windows was compared with that of static systems using the DOE 2.1E building simulation program. Total costs for different scenarios were computed. SAGE demonstrated the capability to produce double pane EC windows in which the transmittance repeatedly varied between 2-58%. Relative impact of EC glazings in buildings compared to static is 10-20% energy savings across all climatic regions investigated. Significant life cycle cost savings are predicted for SAGE's EC windows when compared to conventional solar control windows over an estimated product lifetime of 20 years.

Sbar, Neil L.

2001-03-30T23:59:59.000Z

320

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Welcome to the Efficient Windows Collaborative Welcome to the Efficient Windows Collaborative YOUR GATEWAY TO INFORMATION ON HOW TO CHOOSE ENERGY-EFFICIENT RESIDENTIAL WINDOWS 101 Efficient Windows Collaborative (EWC) members have made a commitment to manufacture and promote energy-efficient windows. This site provides unbiased information on the benefits of energy-efficient windows, descriptions of how they work, and recommendations for their selection and use. Selecting Windows for New Construction Window Selection Tool Selection Process Design Guidance Installation Selecting Replacement Windows Window Selection Tool Assessing Replacement Options Selection Process Design Guidance Installation Understanding Windows Benefits of Energy Efficient Windows Design Considerations How to Measure Performance Window Technologies

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


321

LBNL Window & Daylighting Software -- WINDOW 6 Research Version  

NLE Websites -- All DOE Office Websites (Extended Search)

a copy of THERM 7 Beta Knowledge Base Release Notes Forum Documentation Get a copy of WINDOW 7.1 to accompany THERM 7 Beta -- NOTE: WINDOW 7.2 is not compatible with THERM 7.1....

322

LBNL Window & Daylighting Software -- WINDOW 6 Research Version  

NLE Websites -- All DOE Office Websites (Extended Search)

a copy of THERM 7 Beta Knowledge Base Release Notes Forum Documentation Get a copy of WINDOW 7.1 to accompany THERM 7 Beta -- NOTE: WINDOW 7.0 is not compatible with THERM 7.1....

323

LBNL Window & Daylighting Software -- WINDOW 6 Research Version  

NLE Websites -- All DOE Office Websites (Extended Search)

Using Radiance in WINDOW 7 beta August 3rd, 2012 Last Updated: 08032012 This package will add the capability to generate basic Radiance images from within WINDOW. You need to...

324

LBNL Windows & Daylighting Software -- WINDOW Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Release Notes Release Notes Updated: 11/07/11 History of COMFEN 3.1 Releases New Features Glazed Wall Assembly In addition to modeling individual windows, COMFEN now has the capability of modeling "Glazed Wall Assemblies" which allow you to specify the number of horizontal and vertical framing members, as well as their spacing, and the program automatically generates the facade. Click here for more details. Material Library COMFEN now has a Material Library, which can be used in the Wall Construction and Spandrel Libraries. See the User Manual for more details. Wall Library COMFEN now has a Wall Library which can be used to build up layers from the Material Library to define a wall. See the User Manual for more details. Spandrel Library COMFEN now has a Spandrel Library which can be used to build up layers from the Material Library to define a spandrel, including glass and glazing systems as the outer-most layers. See the User Manual for more details.

325

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Window Technologies: Glazing Types Window Technologies: Glazing Types Glazing Improvements There are three fundamental approaches to improving the energy performance of glazing products (two or more of these approaches may be combined). The first approach is to alter the glazing material itself by changing its chemical composition or physical characteristics. An example of this is tinted glazing. The second approach is to apply a coating to the glazing material surface. Reflective coatings and films were developed to reduce heat gain and glare, and more recently, low-emittance coatings have been developed to improve both heating and cooling season performance. The third approach is to assemble various layers of glazing and control the properties of the spaces between the layers. These strategies include the use of two or more panes or films,

326

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Single Glazing Single Glazing Single-Glazed, Clear Glass This figure illustrates the performance of a typical single-glazed unit with clear glass. Relative to all other glazing options, single-glazed with clear glass allows the highest transfer of energy (i.e. heat loss or heat gain depending on local climate conditions) while permitting the highest daylight transmission. Single Clear Center of Glass Properties Note: These values are for the center of glass only. They should only be used to compare the effect of different glazing types, not to compare total window products. Frame choice can drastically affect performance. Whole Window Properties - Single-Glazed, Clear Glass Metal Frame Non-metal Frame Metal Frame Metal Frame with Thermal Break Non-metal Frame Non-metal Frame, Thermally Improved

327

Patching the thermal hole of windows  

SciTech Connect

Materials research is being applied to the significant reduction of undesired heat gains and losses through apertures. This paper summarizes the background and recent progress supporting the development of vacuum and electrochromic windows at SERI. Evacuated glazings now under investigation feature a thin-film, transparent infrared reflector, spherical glass spacers, and laser-welded edges. We believe that these features will result in an overall glazing R-value of 10 or more, maintainable over architectural lifetimes. Technical issues discussed include thermal and mechanical stress, optimal spacer configuration, and gaseous diffusion. The electrochromic work has concentrated on achieving large differences in the transmissivity of window glazing by using thin, transparent films that respond to small electrical potential by becoming, reversibly, partially colored or opaque. Color memory, bleaching rates, and alternative transparent solid-state conductors are discussed.

Potter, T.F.

1985-04-01T23:59:59.000Z

328

Windows Installation Information for EXPGUI  

Science Conference Proceedings (OSTI)

... in liveplot for example) can take 3-5 times longer in Windows than in ... display a plot, I get no plot (and possibly the DOS window disappears without ...

329

Nanolens Window Coatings for Daylighting  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Nanolens Window Coatings for Nanolens Window Coatings for Daylighting Kyle J. Alvine Pacific Northwest National Laboratory Kyle.alvine@pnnl.gov / (509) - 372 - 4475 April 4 th , 2013 Demonstration of the effect To develop a novel, low-cost window coating to double daylight penetration to offset lighting energy use 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: PNNL is developing a novel, low-cost window coating to redirect daylight deeper into buildings to significantly offset lighting energy.

330

Nanolens Window Coatings for Daylighting  

NLE Websites -- All DOE Office Websites (Extended Search)

Nanolens Window Coatings for Nanolens Window Coatings for Daylighting Kyle J. Alvine Pacific Northwest National Laboratory Kyle.alvine@pnnl.gov / (509) - 372 - 4475 April 4 th , 2013 Demonstration of the effect To develop a novel, low-cost window coating to double daylight penetration to offset lighting energy use 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: PNNL is developing a novel, low-cost window coating to redirect daylight deeper into buildings to significantly offset lighting energy.

331

Effects of Overhangs on the Performance of Electrochromic Windows  

NLE Websites -- All DOE Office Websites (Extended Search)

Effects of Overhangs on the Performance of Electrochromic Windows Effects of Overhangs on the Performance of Electrochromic Windows Title Effects of Overhangs on the Performance of Electrochromic Windows Publication Type Journal Article LBNL Report Number LBNL-61137 Year of Publication 2006 Authors Tavil, Aslihan, and Eleanor S. Lee Journal Architectural Science Review Call Number LBNL-61137 Abstract In this study, various facade designs with overhangs combined with electrochromic (EC) window control strategies were modeled for a typical commercial office building in a hot and cold climate using the DOE 2.1E building energy simulation program. EC windows were combined with overhangs since opaque overhangs provide protection from direct sun which EC windows are unable to do alone. The window wall was divided into an upper and lower aperture so that various combinations of overhang position and control strategies could be considered. The overhang was positioned either at the top of the upper window aperture or between the upper and lower apertures. Overhang depth was varied. EC control strategies were fully bleached at all times, modulated based on incident vertical solar radiation limits, or modulated to meet the design work plane illuminance with daylight. Annual total energy use (ATE), peak electric demand (PED), average daylight illuminance (DI), and daylight glare index (DGI) for south-facing private offices were computed and compared to determine which combinations of fa?ade design and control strategies yielded the greatest energy efficiency, daylight amenity, and visual comfort.

332

AttrActive Windows: Dynamic Windows for Digital Bulletin Boards  

E-Print Network (OSTI)

In this paper we describe AttrActive Windows, a novel interface for presenting live, interactive, multimedia content on a network of public, digital, bulletin boards. Implementing a paper flyer metaphor, AttrActive Windows are paper-like in appearance and are attached to a virtual corkboard by virtual pushpins. Windows can therefore appear in different orientations, creating an attractive, informal look. Attractive Windows can also have autonomous behaviors that are consistent with the corkboard metaphor, like fluttering in the wind. We describe the AttrActive Windows prototype, and offer the results of an initial evaluative user study.

Laurent Denoue; Les Nelson; Elizabeth Churchill

2003-01-01T23:59:59.000Z

333

A professor's life, simplified Windows  

E-Print Network (OSTI)

A professor's life, simplified Windows® 7 makes a professor's "technology life" easier. Now, using programs quickly. Windows Search finds virtually anything on your PC instantly­ files, photos, documents, even a buried e-mail. 2. Helps you get started faster Windows7 operating system is not tardy. It starts

Bernstein, Phil

334

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Connect to LinkedIn Visit us on Facebook Visit us on Twitter Send Email Efficient Windows Collaborative New Construction Windows Window Selection Tool Selection Process Design...

335

Simulating Complex Window Systems using BSDF Data  

E-Print Network (OSTI)

Simulating Complex Window Systems using BSDF Data MariaJune 2009 Simulating Complex Window Systems using BSDF Datathe performance of conventional window systems. Complex

Konstantoglou, Maria

2011-01-01T23:59:59.000Z

336

Window performance for human thermal comfort  

E-Print Network (OSTI)

of Heat Transfer through Windows”. ASHRAE Transactions 93,Performance of Vinyl-framed Windows”. Proc. 5 th Conf. Onet al. 2003b, "Operable Windows, Personal Control & Occupant

Huizenga, C; Zhang, H.; Mattelaer, P.; Yu, T.; Arens, Edward A; Lyons, P.

2006-01-01T23:59:59.000Z

337

Operable windows, personal control and occupant comfort.  

E-Print Network (OSTI)

ASHRAE’s permission. Operable Windows, Personal Control, andcontrol of operable windows in naturally-ventilated officeences on the operation of windows in a naturally venti-

Brager, Gail; Paliaga, Gwelen; de Dear, Richard

2004-01-01T23:59:59.000Z

338

Performance Criteria for Residential Zero Energy Windows  

E-Print Network (OSTI)

LaFrance. 2006. “Zero Energy Windows. ” Proceedings of the2003. “Future Advanced Windows for Zero-Energy Homes. ”and cooling energy use of windows in residential buildings—

Arasteh, Dariush; Goudey, Howdy; Huang, Joe; Kohler, Christian; Mitchell, Robin

2006-01-01T23:59:59.000Z

339

LBNL Windows & Daylighting Software -- THERM: System Requirements  

NLE Websites -- All DOE Office Websites (Extended Search)

SYSTEM REQUIREMENTS OPERATING SYSTEM Program has been tested on Microsoft Windows XP, Windows 2000TM.. Older version of Microsoft Windows might work, but are not supported. (The...

340

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Window Selection Tool: Existing Construction Windows The Window Selection Tool will take you through a series of design conditions pertaining to your design and location. It is a...

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


341

BT::Advancement of Electrochromic Windows  

NLE Websites -- All DOE Office Websites (Extended Search)

Diagram showing a zoned window wall Diagram showing a zoned window wall Electrochromic windows in a bleached state (left) or colored state (right). This website provides...

342

Windows, Doors, & Skylights | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Windows, Doors, & Skylights Windows, Doors, & Skylights Windows, Doors, & Skylights Windows affect home aesthetics as well as energy use. Learn more about energy-efficient windows. Windows affect home aesthetics as well as energy use. Learn more about energy-efficient windows. Energy-efficient windows, doors, and skylights-also known as fenestration-can help lower a home's heating, cooling, and lighting costs. Learn about the energy performance ratings to consider when selecting windows, doors, and skylights, and how to maximize their energy efficiency in your home. Featured Window Types A wood-frame window with insulated window glazing. | Photo courtesy of ©iStockphoto/chandlerphoto

343

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Links Links Government, Research, and Educational Organizations Alliance to Save Energy ewc@ase.org www.ase.org exit disclaimer Building Codes Assistance Project (BCAP) www.bcap-energy.org exit disclaimer BCAP's Online Code Environment & Advocacy Network (OCEAN) energycodesocean.org exit disclaimer Center for Sustainable Building Research csbr@umn.edu www.csbr.umn.edu exit disclaimer ENERGY STAR Windows Program www.energystar.gov exit disclaimer Florida Solar Energy Center (FSEC) www.fsec.ucf.edu exit disclaimer Lawrence Berkeley National Laboratory (LBNL) windows.lbl.gov exit disclaimer National Fenestration Rating Council (NFRC) info@nfrc.org www.nfrc.org exit disclaimer National Renewable Energy Laboratory Center for Buildings and Thermal Energy Systems (NREL) www.nrel.gov exit disclaimer

344

Market Transformation Efforts for Residential Energy Efficient Windows: An  

NLE Websites -- All DOE Office Websites (Extended Search)

Market Transformation Efforts for Residential Energy Efficient Windows: An Market Transformation Efforts for Residential Energy Efficient Windows: An Update of National Activities Title Market Transformation Efforts for Residential Energy Efficient Windows: An Update of National Activities Publication Type Report LBNL Report Number LBNL-46620 Year of Publication 2000 Authors Ward, Alecia, Margaret Suozzo, and Joseph H. Eto Date Published 01/2000 Publisher LBNL Abstract With the burst of recent initiatives to accelerate adoption of energy-efficient fenestration technologies in the marketplace, an update on window market transformation efforts is needed. Because of the impact of glazing on total home energy performance, the residential window market has received increasing attention over the past two years. National programs such as the ENERGY STAR Windows program, the Efficient Windows Collaborative, and regional initiatives such as the California Windows Initiative and the Northwest Collaborative have begun to move markets toward higher-efficiency windows. The results have included increasing sales of efficient products, stocking of more efficient/ENERGY STAR qualifying products, and price reductions of high-efficiency product, all of which secure dramatic energy savings at a national level. This paper takes stock of publicly supported national and regional transformation efforts for residential windows underway in the U.S. In particular, it documents ways in which National Fenestration Rating Council certification, Efficient Windows Collaborative education, and ENERGY STAR marketing, are working together to change window markets across the United States. Although it is too early to quantify the national-level impacts changes of these efforts, the authors offer a preliminary qualitative evaluation of efficient window promotion efforts to gain insight into the broader impacts that these and other future activities will achieve. Finally, the paper summarizes how other federally-funded building industry initiatives that emphasize "whole house" performance can complement these window technology-specific and component-specific initiatives. Demonstration houses from the Building America, ENERGY STAR Homes, and PATH projects all contribute to the success of windows-specific initiatives.

345

WindowsMillenniumEdition (Me) Windows98/98SecondEdition(SE)  

E-Print Network (OSTI)

WindowsMillenniumEdition (Me) Windows98/98SecondEdition(SE) Windows2000Professional WindowsXPHomeEdition WindowsXPProfessional Installation Guide Installing Nikon View 4 and Supporting Software Windows software (such as Cumulus) Mac OS Nikon D1 Nikon D1X Nikon D1H Windows Millennium Edition (Me) Windows 98

Kleinfeld, David

346

Window Interfaces: A Taxonomy of Window Manager User Interfaces  

E-Print Network (OSTI)

This article presents a taxonomy for the user-visible parts of window managers. It is interesting that there are actually very few significant differences, and the differences can be classified in a taxonomy with fairly limited branching. This taxonomy should be useful in evaluating the similarities and differences of various window managers, and it will also serve as a guide for the issues that need to be addressed by designers of future window manager user interfaces. The advantages and disadvantages of the various options are also presented. Since many modern window managers allow the user interface to be customized to a large degree, it is important to study the choices available. A window manager is a software package that helps the user monitor and control different contexts by separating them physically onto different parts of one or more display screens. At its simplest, a window manager provides many separate terminals on the same screen, each with its own connection to a time-sharing computer. At its most advanced, a window manager supports many different activities, each of which uses many windows, and each window, in turn, can contain many different kinds of information including text, graphics, and even video. Window managers are sometimes implemented as part of a computer’s operating system and sometimes as a server that can be used if desired. They September 1988 0272-1;1618810900-0065s0100 198R ltEE 65

Brad A. Myers

1988-01-01T23:59:59.000Z

347

Solar heater  

SciTech Connect

The invention is a solar heater which may function as a humidifier and which has a reflector that is constructed to provide a window, and external thermal insulation. The window has a cover that is positioned to transmit solar radiation to the reflector. The top portion of the reflector has an opening, and a container is removably positioned in the opening. The reflector has a geometry that reflects a high percentage of solar energy to the container, which has a surface with high absorptance. The container has a removable lid for confining heat within the container for certain functions, such as boiling water or drying clothes. When used as a humidifier, the container is filled with water and the lid is removed.

Hill, C.W.

1981-06-23T23:59:59.000Z

348

DOE-2 Input File From WINDOW  

NLE Websites -- All DOE Office Websites (Extended Search)

an EnergyPlus input file from WINDOW 5 Last update: 12232008 01:54 PM Creating an EnergyPlus Input File for One Window In the WINDOW Window Library, which defines a complete...

349

Energy efficient windows for Navy housing. NFESC-TDS-2008-ENG  

SciTech Connect

To reduce energy losses in winter (and gains in summer) through windows in Navy housing, NFESC has examined energy efficient windows for their cost effectiveness, identified framing and glazing options, developed simple equations and procedures to determine the best option for each application, and prepared a User Data Package (UDP) for use by field personnel.

Garg, S.C.

1994-10-01T23:59:59.000Z

350

Energy Savings with Smart Window Technology  

Window / façade manufacturer – Added value / higher margin • Construction company – Smart Window investment balanced by reduced ... Transport Vehicles

351

BSP 930 WINDOWS NT SECURITY CHECKLIST  

Science Conference Proceedings (OSTI)

MICROSOFT WINDOWS NT 3.51/4.0 SECURITY CHECKLIST. Domain Name_____. ... 3.0, WINDOWS NT ACCOUNT POLICIES, ...

352

Image Windows - description of data types  

Science Conference Proceedings (OSTI)

... image, or RGB color image. cstack Stack of color (RGB) images. FRED (text) window; Dialog; (various) graphics windows.

353

Windows 7 -käyttöjärjestelmän ominaisuudet, käyttö ja Windows XP -vertailu.  

E-Print Network (OSTI)

??Tämän opinnäytetyön tutkimuskohteena oli Windows 7 -käyttöjärjestelmä. Sen ominaisuuksia ja käyttöä arvioitiin käyttäjän näkökulmasta. Lisäksi selvitettiin mm. asennusvaihtoehtoja, käyttöjärjestelmän versioiden eroja ja toimintoihin sekä so-velluksiin… (more)

Nevala, Jukka

2010-01-01T23:59:59.000Z

354

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Tools Tools Looking for windows for a new home? Use the Window Selection Tool to compare annual energy performance for windows in new construction. Window Selection Tool Looking for replacement windows? Use the Window Selection Tool to compare annual energy performance for replacement windows. Window Selection Tool Window Selection Tool Use the Window Selection Tool for new or replacement windows to compare the annual energy performance of different window types and design conditions for a typical house. Find manufacturers who offer windows and skylights within the generic results shown. Learn more about manufacturers' specific product options. Use the Window Selection Tool to: Compare how various window or skylight types affect estimated energy cost for a typical house in your location.

355

Beam line windows at LAMPF  

Science Conference Proceedings (OSTI)

The A-6 main beam-line window at LAMPF separates the vacuum of the main beam line from the isotope production station, proton irradiation ports, and the beam stop, which operate in air. This window must withstand the design beam current of 1 mA at 800 MeV for periods of at least 3000 hours without failure. The window is water cooled and must be strong enough to withstand the 2.1 MPa (300 psig) cooling water pressure, as well as beam-induced thermal stresses. Two designs have been used to meet these goals, a stepped-plate window and a hemispherical window, both made from a precipitation-hardened nickel base alloy, Alloy 718. Calculations of the temperatures and stresses in each of these windows are presented.

Brown, R.D.; Grisham, D.L.; Lambert, J.E.

1985-01-01T23:59:59.000Z

356

WINDOW 5 Glass Library Update  

NLE Websites -- All DOE Office Websites (Extended Search)

WINDOW 6 or 7 Glass Library Update WINDOW 6 or 7 Glass Library Update Last update:12/09/13 07:26 PM Automatic IGDB Update Feature in WINDOW 6 and 7 The latest versions of WINDOW 6 and 7 have an automatic IGDB database update function in the Glass Library. When you first open the program, it checks to see if there is an IGDB version later than what you already have installed, and will notify you if there is an update. Then you can download and install the IGDB database, and click on the Update IGDB button in the Glass Library in order to start the automatic update. For older versions of WINDOW 6 and 7 without the automatic IGDB update function bullet How to Check the Current WINDOW5 IGDB Version bullet Updating the Glass Library bullet Problem Updating the Glass Library bullet Discontinued Records or Reused NFRC IDs

357

Solar energy system  

SciTech Connect

A solar energy system is described for selectively absorbing or reflecting radiant energy entering through a window of a structure, the system comprising a window drape having a decorative side and a back side, and a removable liner adjacent the backside of the window drape. At least one side of the liner or window drape backside is a radiant energy reflecting surface and another of said sides is a radiant energy absorbing surface. Thus, depending upon the season of the year, the system may be arranged to selectively provide the appropriate surface to optimize or minimize the radiant energy maintained within the structure.

Mole, R.A.

1977-05-03T23:59:59.000Z

358

Windows for energy efficient buildings  

SciTech Connect

Information is compiled and reviewed on energy efficient windows. The status, support organization, and descriptions of some research, development, demonstration, and applications program of energy efficient windows are presented. Information about contract opportunities and recently awarded contracts is included. New products, materials, components, patents, and legislation are summarized. Information on industry organizations, literature, publications, and reports is included. A matrix of numerical performance data of window thermal barriers is presented. (MCW)

1980-01-01T23:59:59.000Z

359

Window treatments for cold climates  

SciTech Connect

Design considerations for various types of energy conserving window treatments to avoid condensation related maintenance problems are discussed. The window heat losses, dew point temperatures and allowable relative humidities at which condensation may occur on interior glass surfaces at an interior temperature of 65 DEGF (degrees Fahrenheit) and exterior temperatures from -50 to 30 DEGF were calculated by computer. Vapor pressures were also computed to show the importance of vapor (air) tight weather stripping and coverings for window treatments.

Carlson, A.R.

1983-06-01T23:59:59.000Z

360

V-063: Adobe ColdFusion Bugs Let Remote Users Gain Access and...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Gain Access and Obtain Information PLATFORM: ColdFusion 10, 9.0.2, 9.0.1 and 9.0 for Windows, Macintosh and UNIX ABSTRACT: Adobe has identified three vulnerabilities affecting...

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


361

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Replacement Windows for Existing Homes Homes Replacement Windows for Existing Homes Homes Window Selection Tool Use the Window Selection Tool for existing homes (replacement windows) to compare performance of 20 different window types in your location. The Window Selection Tool will take you through a series of design conditions pertaining to your design and location. It is a step-by-step decision-making tool to help determine the most energy efficient window for your house. Window Selection Tool Assessing Options This section provides guidance the options available to improve the performance of your existing windows or to replace them. You can assess whether to repair, retrofit or replace your existing windows. Window Selection Process This section provides step-by-step guidance on the window selection process for replacement windows including issues of code, energy, durability, and installation.

362

Passive Solar Design | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

energy in the form of heat in the winter and reject solar heat in the summer. Learn how passive solar design techniques work. Direct Gain Direct gain is the process by which...

363

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

E-Print Network (OSTI)

and spacer effects on window U- value. ASHRAE Transactions,Enermodal. (2001). Modelling Windows, Glass Doors and OtherA. (2001). Heat transfer in window frames with internal

Gustavsen, Arild

2009-01-01T23:59:59.000Z

364

Ring Ring Oy -yrityksen Windows XP -käyttöjärjestelmästä siirtyminen Windows 7 -käyttöjärjestelmään ja ylläpidon näkökulma.  

E-Print Network (OSTI)

??Opinnäytetyön aiheena oli selvittää millä tapaa Windows XP -käyttöjärjestelmä eroaa Windows 7 -käyttöjärjestelmästä ylläpidon näkökulmasta. Selvitys pohjautuu toimeksiantajan toiveeseen saada lisää tietoa Windows 7 -käyttöjärjestelmän… (more)

Ritala, Ilkka

2011-01-01T23:59:59.000Z

365

Thermally insulated windows and doors  

SciTech Connect

Complete thermal insulation of metal rails and stiles in vertically or horizontally sliding or rolling windows or doors is provided by including in the frame thereof centered rigid plastic shapes which extend between panels of the windows or doors. All rails and stiles of each panel are thereby exposed only to either interior or exterior ambient temperatures.

Schmidt, D.F.

1979-05-01T23:59:59.000Z

366

The Window Strategy with Options  

E-Print Network (OSTI)

The window strategy is one of several marketing strategies using futures and options to establish a floor price and allow for upside price potential. It also reduces option premium costs. This publication discusses how the window strategy works and when to use it.

McCorkle, Dean; Amosson, Stephen H.; Fausett, Marvin

1999-06-23T23:59:59.000Z

367

Window Functions for CMB Experiments  

E-Print Network (OSTI)

We discuss the applicability and derivation of window functions for cosmic microwave background experiments on large and intermediate angular scales. These window functions describe the response of the experiment to power in a particular mode of the fluctuation spectrum. We give general formulae, illustrated with specific examples, for the most common observing strategies.

Martin White; Mark Srednicki

1994-02-15T23:59:59.000Z

368

Application of Standard Maintenance Windows in PHWR Outage  

SciTech Connect

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)

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

2006-07-01T23:59:59.000Z

369

Tokamak physics experiment: Diagnostic windows study  

SciTech Connect

We detail the study of diagnostic windows and window thermal stress remediation in the long-pulse, high-power Tokamak Physics Experiment (TPX) operation. The operating environment of the TPX diagnostic windows is reviewed, thermal loads on the windows estimated, and cooling requirements for the windows considered. Applicable window-cooling technology from other fields is reviewed and its application to the TPX windows considered. Methods for TPX window thermal conditioning are recommended, with some discussion of potential implementation problems provided. Recommendations for further research and development work to ensure performance of windows in the TPX system are presented.

Merrigan, M.; Wurden, G.A.

1995-11-01T23:59:59.000Z

370

Design of an atrium for a passive-solar retrofit of an office buildings  

DOE Green Energy (OSTI)

The Los Alamos Scientific Laboratory (LASL) has proposed to retrofit one of its administrative office buildings with a solar atrium. A 334 m/sup 2/ courtyard will be enclosed with a roof-mounted system of clerestory windows to maximize winter solar gain. This sunspace will thermally buffer the adjoining offices and also will preheat air supplied to the building's conventional heating, ventilating, and air-conditioning (HVAC) system. The use of the DOE-2 building energy analysis computer program in the design of the solar atrium is described. The results of a series of simulations are reported detailing the tradeoffs inherent in the selection of an optimal glazing area, the maintenance of acceptable comfort levels within the sunspace, and intergration of passive-solar devices with the conventional HVAC system. Potential energy savings are also discussed.

Peterson, J.L.; Hunn, B.D.

1980-01-01T23:59:59.000Z

371

Effects of internal gain assumptions in building energy calculations  

DOE Green Energy (OSTI)

The utilization of direct solar gains in buildings can be affected by operating profiles, such as schedules for internal gains, thermostat controls, and ventilation rates. Building energy analysis methods use various assumptions about these profiles. The effects of typical internal gain assumptions in energy calculations are described. Heating and cooling loads from simulations using the DOE 2.1 computer code are compared for various internal-gain inputs: typical hourly profiles, constant average profiles, and zero gain profiles. Prototype single-family-detached and multi-family-attached residential units are studied with various levels of insulation and infiltration. Small detached commercial buildings and attached zones in large commercial buildings are studied with various levels of internal gains. The results of this study indicate that calculations of annual heating and cooling loads are sensitive to internal gains, but in most cases are relatively insensitive to hourly variations in internal gains.

Christensen, C.; Perkins, R.

1981-01-01T23:59:59.000Z

372

Testing of air-flow windows for evaluation and application  

DOE Green Energy (OSTI)

A description is given of how the performance of air-flow windows was assessed in comparison to a conventional window of good current design. Tests were performed in the University Building Environment and Energy Laboratory which allowed tests quite representative of actual application conditions in a variety of vertical orientations. The actual application condition requirement necessitated some approximations to the energy measurements which are not found in guarded hot box or calorimeter kinds of approaches to performance evaluations. The testing technique and required approximations are described. A possible type of solar-residential application is also described briefly.

Boehm, R.F.; Brandle, K.

1980-12-01T23:59:59.000Z

373

Windows Vista Step by Step Deluxe Edition  

Science Conference Proceedings (OSTI)

The smart way to learn Windows Vista one step at a time! Updated with expanded coverage, this deluxe edition covers all of the latest Windows Vista features. You ll discover the smartest ways to stay organized with Windows Mail, Windows Contact, Windows ...

Joyce Cox; Joan Preppernau

2008-02-01T23:59:59.000Z

374

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

Science Conference Proceedings (OSTI)

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.

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

2008-11-30T23:59:59.000Z

375

Gain Sharing.PDF  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SE SE DOE/IG-480 I N S P E C T I O N R E P O R T U.S. DEPARTMENT OF ENERGY OFFICE OF INSPECTOR GENERAL OFFICE OF INSPECTIONS INSPECTION OF GAIN SHARING OPPORTUNITIES FOR THE DEPARTMENT OF ENERGY SEPTEMBER 2000 U.S. DEPARTMENT OF ENERGY Washington, DC 20585 September 1, 2000 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman /s/ for Herbert Richardson Inspector General SUBJECT: INFORMATION: Report on "Inspection of Gain Sharing Opportunities for the Department of Energy" BACKGROUND In 1995, the General Services Administration provided guidance on a program known as "GAIN SHARING" where agencies could give cash awards to employees who participate in programs to save travel dollars. This guidance discussed the authority to offer cash awards to employees for obtaining a free coach class ticket with Frequent Flyer benefits earned on official travel and for

376

A generalized window energy rating system for typical office buildings  

Science Conference Proceedings (OSTI)

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)

Tian, Cheng; Chen, Tingyao; Yang, Hongxing; Chung, Tse-ming [Research Center for Building Environmental Engineering, Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong (China)

2010-07-15T23:59:59.000Z

377

Passive solar design handbook  

DOE Green Energy (OSTI)

The Passive Solar Design Handbook, Volume Three updates Volume Two by presenting extensive new data on the optimum mix of conservation and solar direct gain, sunspaces, thermal storage walls, and solar radiation. The direct gain, thermal storage wall, and solar radiation data are greatly expanded relative to the Volume 2 coverage. The needed flexibility to analyze a variety of system designs is accommodated by the large number of reference designs to be encompassed - 94 in contrast to 6 in Volume two - and the large amount of sensitivity data for direct gain and sunspace systems - approximately 1100 separate curves.

Jones, R.W.

1981-01-01T23:59:59.000Z

378

LBNL Window & Daylighting Software -- WINDOW 6 Research Version  

NLE Websites -- All DOE Office Websites (Extended Search)

7.0 7.0 Last Updated: 05/20/2013 EN 673 / ISO 10077 Using WINDOW 7 and THERM 7 for EN 673 / ISO 10077 Calculations If you are interested in using WINDOW and THERM for EN 673 / ISO 10077 calculations, we have added that option to WINDOW 7. The calculation is not fully automated in the program yet, so there are many steps and a spreadsheet for the final calculation. We are interested in feedback (email WINDOWHelp@lbl.gov) about the process and the results from anyone who tests this feature. CAUTION: Do not model shading systems with the EN 673 thermal model. The program will produce results but they will most likely not be correct. Download this zip file (EN673.zip) which contains the following: Description of how to use WINDOW 6 and THERM 6 for the EN 673 / ISO 10077 calculations (PDF file)

379

LBNL Window & Daylighting Software -- WINDOW 6 Research Version  

NLE Websites -- All DOE Office Websites (Extended Search)

2 2 Last Updated: 12/29/2013 If you find bugs, or have comments about this version, please do not hesitate to send an email to WINDOWHelp@lbl.gov to report your findings. Getting feedback from users is how we improve the program. WINDOW 7.2 (7.2.29) (12/29/2013) Release Notes -- Please read these before running this version ! This version contains these new modeling features Honeycomb shades Dynamic Glazing (Thermochromic and Electrochromic) This version is compatible with THERM 7.1 Please send us emails as you find issues in the program -- that is the only way that we can make it more robust. We hope to iterate versions fairly quickly in the next month or so to get the bugs ironed out. Radiance for WINDOW 7 Get a copy of Radiance for WINDOW 7.2 Must be used with WINDOW 7.0.59 or later

380

LBNL Windows & Daylighting Software -- WINDOW5: Knowledge Base  

NLE Websites -- All DOE Office Websites (Extended Search)

6.3 Knowledge Base 6.3 Knowledge Base Tip - use the Find function in your browser to search this page Last update:11/04/13 01:16 PM Download WINDOW 6.3 Send feedback via email to WindowHelp@lbl.gov. Also as bugs and comments are submitted by testers, the will be posted on this Knowledge Base, so check here for the latest information about the program. CONTENTS INSTALLATION KNOWN BUGS ** Operating Systems -- Microsoft Windows 7 and Vista ** Environmental Conditions -- Kimura convection model not working Locked Files with Install/De-install Environmental Conditions -- Fixed Combined Coefficient Bug Installation Problems Error Message during Calc due to decimal point of "," Minimum computer requirements Importing THERM file into WINDOW generates "Unnamed file has a bad format" error message

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


381

LBNL Window & Daylighting Software -- WINDOW 6 Research Version  

NLE Websites -- All DOE Office Websites (Extended Search)

Last Updated: 06262013 Complex Glazing System Modeling WINDOW 6.3 can be used to model complex glazing systems, in particular venetian blinds and roller shades (although not for...

382

LBNL Window & Daylighting Software -- WINDOW 6 Research Version  

NLE Websites -- All DOE Office Websites (Extended Search)

to report your findings. Getting feedback from users is how we improve the program. WINDOW 7.1 (7.1.73) (8302013) Release Notes -- Please read these before running this...

383

LBNL Windows & Daylighting Software -- WINDOW5.02: Version Fixes  

NLE Websites -- All DOE Office Websites (Extended Search)

opening an optics db as a W5 db 748 energy plus reports working properly for windows with 2 glazing systems 742 eliminated a memory leak related to Therm temperature...

384

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Storm Windows Storm Windows Window Attachments For detailed information on storm windows and other window attachments, visit www.windowattachments.org exit disclaimer , a site supported by Lawrence Berkeley National Laboratory, Building Green, and the U.S. Department of Energy. DOE's Energy Savers You can improve the energy efficiency of existing windows by adding interior or exterior storm panels. Storm Window Panels exit disclaimer Storm windows can reduce the air leakage and improve the insulating value of existing windows. They can be installed on the interior or exterior side of windows, and can be mounted permanently or for seasonal use. Interior storm windows can be more easily installed and removed for ventilation or cleaning. Storm windows can reduce air leakage. However, it is important that humid

385

High Performance Windows Volume Purchase: For Utilities  

NLE Websites -- All DOE Office Websites (Extended Search)

and mixed climates, R-5 windows on average reduce window heat loss by 40% and overall space conditioning costs by 10% relative to common ENERGY STAR windows. Promotion of high...

386

THERMAL PERFORMANCE OF MANAGED WINDOW SYSTEMS  

E-Print Network (OSTI)

PERFORMANCE OF MANAGED WINDOW SYSTEMS S. E. Selkowitz and V.York, N.Y. , (1971). Windows for Energy Efficient Buildings,thermal performance of a window system are its overall heat

Selkowitz, S. E.

2011-01-01T23:59:59.000Z

387

Occupant Response to Window Control Signaling Systems  

E-Print Network (OSTI)

A.  (2002).  Operable windows and  HVAC systems.  HPAC Simulation of the effects of window opening and heating Dear, R.  (2004).  Operable Windows, Personal Control and 

Ackerly, Katherine

2012-01-01T23:59:59.000Z

388

AN ENERGY EFFICIENT WINDOW SYSTEM FINAL REPORT.  

E-Print Network (OSTI)

A. . .installed I. Prime windows -Residential -Mobile homesStorm wi ndows - 9.4 window area (in William M. Bethkeestimates ass consumption and window units. Table 9 B. Non-

Authors, Various

2011-01-01T23:59:59.000Z

389

Window Signaling Systems: Control Strategies & Occupant Behavior  

E-Print Network (OSTI)

and L.M Parkins. 1984. “Window-Opening Behavior in OfficeOccupant Response to Window Control Signaling Systems," CBEDaly, A. 2002. “Operable windows and HVAC systems. ” HPAC

Ackerly, Katie; Brager, Gail

2012-01-01T23:59:59.000Z

390

THERMAL PERFORMANCE OF INSULATING WINDOW SYSTEMS  

E-Print Network (OSTI)

PERFORMANCE VALUES FOR SEVERAL WINDOW DESIGNS XBL 796-10098IN MINNEAPOLIS AS A FUNCTION OF WINDOW AREA AND GLAZING/Thermal Performance of Insulating Window Systems Stephen E.

Selkowitz, Stephen E.

2011-01-01T23:59:59.000Z

391

Performance Criteria for Residential Zero Energy Windows  

E-Print Network (OSTI)

building with no windows) Figure 3 – Washington DC: Lines ofbuilding with no windows) Figure 8 – Washington DC: Lines ofdynamic window. U-factor [W/(m^2-K)] Washington DC -

Arasteh, Dariush; Goudey, Howdy; Huang, Joe; Kohler, Christian; Mitchell, Robin

2006-01-01T23:59:59.000Z

392

Window Use in Mixed-Mode Buildings: A Literature Review  

E-Print Network (OSTI)

exhaust! functions! of! windows! Automated'operable'window'to! view8 level! windows. ! Multiwindow''Single'zone'air'conditioning' Window! or! wall! AC! units,!

Ackerly, Katie; Baker, Lindsay; Brager, Gail

2011-01-01T23:59:59.000Z

393

Tips: Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

high-performance glass-low-e or spectrally selective coatings. In colder climates, select gas-filled windows with low-e coatings to reduce heat loss. In warmer climates, select...

394

Thermal insulation of window glass  

SciTech Connect

The thermal insulation of window glass can be increased by a factor of two using spray-on semiconductive SnO/sub 2/: Sb or IN/sub 2/O/sub 3/: Sn coatings. (auth)

Sievers, A.J.

1973-11-01T23:59:59.000Z

395

Window Programming in DFKI Oz  

E-Print Network (OSTI)

This paper describes how to do window programming in DFKI Oz. The DFKI Oz window interface is based on the Tk toolkit which in turn is based on the script language Tcl. It provides a high level abstraction of Tk widgets allowing for objectoriented and concurrent window programming. A generic translation scheme from Oz values to Tcl/Tk commands provides for minimality and flexibility on the Oz side. The Tcl/Tk interface is implemented in Oz using the open programming facilities and is an example of how to connect an external and sequential agent to Oz. Contents 1 Introduction 1 2 Crash Course to Window Programming 3 2.1 Widget creation : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 3 2.2 Widget hierarchy : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 4 2.3 Tickles and Tcl/Tk commands : : : : : : : : : : : : : : : : : : : : : 5 2.4 Geometry management : : : : : : : : : : : : : : : : : : : : : : : : : : 7 2.5 Invoking widget commands : : : : : : : : : : : : ...

Michael Mehl

1995-01-01T23:59:59.000Z

396

Window-closing safety system  

DOE Patents (OSTI)

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.

McEwan, T.E.

1997-08-26T23:59:59.000Z

397

Window-closing safety system  

DOE Patents (OSTI)

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.

McEwan, Thomas E. (Livermore, CA)

1997-01-01T23:59:59.000Z

398

LBNL Windows & Daylighting Software -- THERM  

NLE Websites -- All DOE Office Websites (Extended Search)

a problem with the software) Documentation Future Work Tutorials Two-Dimensional Building Heat-Transfer Modeling THERM is a state-of-the-art, Microsoft Windows-based computer...

399

----Google File System Windows IT  

E-Print Network (OSTI)

Essential ---- Google File System web Windows IT Google IT Google Google File System Google File System Datebase Google Google " " Goolge Goolge Google Google Goolge Google ()(,) Google ...... Google IT Google Google Google Google Google "Google " Google 10

400

Building Mathematics via Theorem Windows  

E-Print Network (OSTI)

Quantum mechanical model with singularities triplets is condisered. How life functions via mechanism which is built from what we call theorem windows we are trying to imagine and to model. Key words: singularities, quantum mechanics, life, reference system of life

Dainis Zeps

2009-01-01T23:59:59.000Z

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


401

Gaining creative control over semiconductor nanowires  

NLE Websites -- All DOE Office Websites (Extended Search)

Gaining creative control over semiconductor nanowires Gaining creative control over semiconductor nanowires Gaining creative control over semiconductor nanowires Using a microfluidic reactor, Los Alamos researchers transformed the SLS process into a flow-based technique. September 26, 2013 Growth of nanowire precursors in a flowing carrier solvent Growth of nanowire precursors in a flowing carrier solvent The new "flow" solution-liquid-solid method allows scientists to slow down growth and thereby capture mechanistic details as the nanowires grow in solution. A Los Alamos research team has transformed the synthesis process of semiconductor nanowires for use in solar cells, batteries, electronics, sensors and photonics using a solution-liquid-solid (SLS) batch approach to achieve unprecedented control over growth rates, nanowire size and internal

402

Performance Criteria for Residential Zero Energy Windows  

NLE Websites -- All DOE Office Websites (Extended Search)

Performance Criteria for Residential Zero Energy Windows Title Performance Criteria for Residential Zero Energy Windows Publication Type Conference Paper LBNL Report Number...

403

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

for your climate; additionally, the Window Selection Tool compares average simulated energy costs for your location based on various window types. The SHGC is the fraction of...

404

Windows 8 : Uudet ominaisuudet ja muutokset.  

E-Print Network (OSTI)

??Tämä opinnäytetyö esittelee Microsoft Windows 8 -käyttöjärjestelmän uusia ominaisuuksia ja parannuksia Microsoftin edellisiin käyttöjärjestelmiin. Opinnäytetyön tavoitteena on hahmottaa Windows 8 -käyttöjärjestelmän näkyvimpiä udistuksia ja sitä,… (more)

Ylioja, Ilkka-Aleksi

2013-01-01T23:59:59.000Z

405

Brand Font Installation Guide Windows XP  

E-Print Network (OSTI)

Brand Font Installation Guide Windows XP Before starting ­ make sure to the specific font folder ­ when Windows detects installable font files, they will show

Stuart, Steven J.

406

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Frame Types - Metal Frames Metal Frames Aluminum Aluminum window frames are light, strong, durable, and easily extruded into the complex shapes required for window parts. Aluminum...

407

TMS PostScript Instruction: Microsoft Windows  

Science Conference Proceedings (OSTI)

Please note that these instructions were built using Microsoft Windows 2000 ... This guide is designed to help authors using the Windows operating system to ...

408

Building Technologies Office: High Performance Windows Volume...  

NLE Websites -- All DOE Office Websites (Extended Search)

Building Technologies Office: High Performance Windows Volume Purchase to someone by E-mail Share Building Technologies Office: High Performance Windows Volume Purchase on Facebook...

409

High Performance Windows Volume Purchase: For Builders  

NLE Websites -- All DOE Office Websites (Extended Search)

For Builders to someone by E-mail Share High Performance Windows Volume Purchase: For Builders on Facebook Tweet about High Performance Windows Volume Purchase: For Builders on...

410

High Performance Windows Volume Purchase: For Manufacturers  

NLE Websites -- All DOE Office Websites (Extended Search)

For Manufacturers to someone by E-mail Share High Performance Windows Volume Purchase: For Manufacturers on Facebook Tweet about High Performance Windows Volume Purchase: For...

411

High Performance Windows Volume Purchase: Events  

NLE Websites -- All DOE Office Websites (Extended Search)

Events to someone by E-mail Share High Performance Windows Volume Purchase: Events on Facebook Tweet about High Performance Windows Volume Purchase: Events on Twitter Bookmark High...

412

VisVIP: Installation Instructions for Windows  

Science Conference Proceedings (OSTI)

... The Windows version of VisVIP comes with three sets of sample data, which ... sites using the "Load Site" button at the bottom of the control window. ...

413

High Performance Windows Volume Purchase: News  

NLE Websites -- All DOE Office Websites (Extended Search)

News to someone by E-mail Share High Performance Windows Volume Purchase: News on Facebook Tweet about High Performance Windows Volume Purchase: News on Twitter Bookmark High...

414

Closing the light gluino window  

E-Print Network (OSTI)

The running of the strong coupling constant, $R_{e^+e^-},R_Z$ and $R_\\tau$ is studied on the three-loop level. Based on experimental data of $R_{e^+e^-},R_Z$ and $R_\\tau$ and the LEP multijet analysis, the light gluino scenario is excluded to 99.97% CL (window I) and 99.89% CL (window III).

Ferenc Csikor; Zoltan Fodor

1997-12-04T23:59:59.000Z

415

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Operator Types-Skylights Operator Types-Skylights Choosing Skylights for Your Home Check the pitch roof and determine what skylight product would work best (deck-mounted, curb-mounted, pan-flashed). Determine what type of skylight operation is wanted (electric venting, manual venting, fixed). Identify the ceiling and roof style for optimal size and configuration of the skylight shaft (flat ceiling, cathedral ceiling, sloped wall, flat or sloped roof) Select the glazing type (high-performance, tempered, laminated, impact, snow load). Select screen accessories if wanted (solar blinds, blackout blinds, Venetian blinds, roller shades). Select manual or electric controls to operate operable skylights and accessories. Roof windows have become increasingly popular as homeowners and designers

416

Low heat transfer, high strength window materials  

DOE Patents (OSTI)

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.

Berlad, Abraham L. (Stony Brook, NY); Salzano, Francis J. (Patchogue, NY); Batey, John E. (Stony Brook, NY)

1978-01-01T23:59:59.000Z

417

Linda L. Gaines resume  

NLE Websites -- All DOE Office Websites (Extended Search)

L. Gaines L. Gaines Systems Analyst Center for Transportation Research Energy Systems Division Argonne National Laboratory 9700 South Cass Avenue, Bldg. 362 Argonne, IL 60439 phone: 630/252-4919 e-mail: lgaines@anl.gov Professional Experience * Lead analyst for U.S. Department of Energy's heavy vehicle idling studies. * Study costs and impacts on energy use and environment of production and recycling of advanced- design automobiles, trucks, trains, and batteries. * Primary interest is problem solving, which has been applied to efficient use of resources. * Since joining Argonne in 1976, have written handbooks of energy and material flows in petroleum refining, organic chemicals, and copper industries that provided background for reports and papers on technical and institutional issues involved in recycling discarded tires, packaging,

418

Importance-driven compositing window management  

E-Print Network (OSTI)

In this paper we present importance-driven compositing window management, which considers windows not only as basic rectangular shapes but also integrates the importance of the windows ’ content using a bottom-up visual attention model. Based on this information, importance-driven compositing optimizes the spatial window layout for maximum visibility and interactivity of occluded content in combination with see-through windows. We employ this technique for emerging window manager functions to minimize information overlap caused by popping up windows or floating toolbars and to improve the access to occluded window content. An initial user study indicates that our technique provides a more effective and satisfactory access to occluded information than the well-adopted Alt+Tab window switching technique and see-through windows without optimized spatial layout. Author Keywords compositing window management, visual saliency, space

Manuela Waldner; Markus Steinberger; Raphael Grasset; Dieter Schmalstieg

2011-01-01T23:59:59.000Z

419

Solar Rights | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Solar Rights Solar Rights Solar Rights < Back Eligibility Residential Savings Category Home Weatherization Commercial Weatherization Solar Lighting Windows, Doors, & Skylights Heating & Cooling Commercial Heating & Cooling Heating Buying & Making Electricity Swimming Pool Heaters Water Heating Program Info State Arizona Program Type Solar/Wind Access Policy Arizona law protects individual homeowners' private property rights to solar access by dissolving any local covenant, restriction or condition attached to a property deed that restricts the use of solar energy. This law sustained a legal challenge in 2000. A Maricopa County Superior Court judge ruled in favor of homeowners in a lawsuit filed by their homeowners association seeking to force the homeowners to remove roof-top

420

Solar Rights | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Commercial Commercial Fed. Government Industrial Local Government Nonprofit Residential Schools State Government Savings Category Home Weatherization Commercial Weatherization Solar Lighting Windows, Doors, & Skylights Heating & Cooling Commercial Heating & Cooling Heating Buying & Making Electricity Swimming Pool Heaters Water Heating Program Info State Louisiana Program Type Solar/Wind Access Policy In June 2010, Louisiana enacted solar rights legislation (HB 751) that prohibits certain entities from unreasonably restricting a property owner from installing a solar collector. Solar collectors are generally defined to include photovoltaics (PV), solar water heating, and any other system or device that uses sunlight as an energy source. While this law generally guarantees a property owner's right to install solar collectors, there are

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


421

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Window Technologies: Operator Types Window Technologies: Operator Types Window Sash Operation When you select a window, there are numerous operating types to consider. Traditional operable window types include the projected or hinged types such as casement, awning, and hopper, and the sliding types such as double- and single-hung and horizontal sliding. In addition, the window market includes fixed windows, storm windows, sliding and swinging patio doors, skylights and roof windows, and window systems that can be added to a house to create bay or bow windows, miniature greenhouses, or full sun rooms. Looking for information on skylights? More information on skylights, light tubes, and their installation can be found here. Casement Casement windows are hinged at the sides. Hinged windows such as casements generally have lower air leakage rates than sliding windows from the same manufacturer because the sash closes by pressing against the frame. Casement windows project outward, providing significantly better ventilation than sliders of equal size. Because the sash protrudes from the plane of the wall, it can be controlled to catch passing breezes, but screens must be placed on the interior side. Virtually the entire casement window area can be opened, while sliders are limited to less than half of the window area. Casement

422

Residential Solar and Efficiency Tax Credit - Personal (Massachusetts...  

Open Energy Info (EERE)

Programmable Thermostats, DuctAir sealing, Building Insulation, Windows, Solar Water Heat, Other Unspecified Technologies Active Incentive No Implementing Sector State...

423

Residential Solar and Efficiency Tax Credit - Corporate (Massachusetts...  

Open Energy Info (EERE)

Programmable Thermostats, DuctAir sealing, Building Insulation, Windows, Solar Water Heat, Other Unspecified Technologies Active Incentive No Implementing Sector State...

424

Windows and daylighting: A brighter outlook  

Science Conference Proceedings (OSTI)

This is an overview of energy efficient window glazing and framing technology. The topics of the report include: windows and energy use, a point of view; a challenging federal opportunity; DOE window research; advanced optical technologies such as spectrally selective glazing, switchable glazing, super windows with low-emissivity coatings and noble gas fills; and performance evaluation and design tools.

Not Available

1994-11-01T23:59:59.000Z

425

Windows Enterprise Design Master Directory Sources  

E-Print Network (OSTI)

Windows Enterprise Design Master Directory Sources September 29, 2003 Active Directory information for Windows users contains several pieces of information to identify the person associated with a Windows in Windows Active Directory. It is important the information correctly reflects your current name

Simpkins, William W.

426

UConnect Wireless Connection Windows 7 Configuration  

E-Print Network (OSTI)

UConnect Wireless Connection Windows 7 Configuration page 1 revised February, 2012 Configuring a UConnect Wireless Connection on Windows 7 1. Open the Network and Sharing Center a. Click the Windows icon screen, select Network and Sharing Center. #12;UConnect Wireless Connection Windows 7 Configuration page

Provancher, William

427

User Experience Design Guidelines for Windows Phone  

E-Print Network (OSTI)

User Experience Design Guidelines for Windows Phone The UI Design and Interaction Guide for Windows superseded by the User Experience Design Guidelines for Windows Phone on MSDN ® . There are six parts to the new guidelines: 1. The Windows Phone Platform: Takes a brief look at the types of applications

Narasayya, Vivek

428

Windows Server AppFabric provides  

E-Print Network (OSTI)

Windows Server AppFabric provides benefits in three key areas: Faster Web Apps Windows Server App that works with current ASP.Net applications. Simplified Composite Apps Windows Server AppFabric simplifies (benefits often associated with the cloud) with the help of Windows Server AppFabric. These, and countless

Narasayya, Vivek

429

Monitored Energy Performance of Electrochromic Windows Controlled for  

NLE Websites -- All DOE Office Websites (Extended Search)

Monitored Energy Performance of Electrochromic Windows Controlled for Monitored Energy Performance of Electrochromic Windows Controlled for Daylight and Visual Comfort Title Monitored Energy Performance of Electrochromic Windows Controlled for Daylight and Visual Comfort Publication Type Conference Paper LBNL Report Number LBNL-58912 Year of Publication 2005 Authors Lee, Eleanor S., Dennis L. DiBartolomeo, Joseph H. Klems, Mehry Yazdanian, and Stephen E. Selkowitz Conference Name 2006 ASHRAE Annual Meeting Date Published 06/2006 Conference Location Quebec City, Canada Call Number LBNL-58912 Abstract A 20-month field study was conducted to measure the energy performance of south-facing large-area tungsten-oxide absorptive electrochromic (EC) windows with a broad switching range in a private office setting. The EC windows were controlled by a variety of means to bring in daylight while minimizing window glare. For some cases, a Venetian blind was coupled with the EC window to block direct sun. Some tests also involved dividing the EC window wall into zones where the upper EC zone was controlled to admit daylight while the lower zone was controlled to prevent glare yet permit view. If visual comfort requirements are addressed by EC control and Venetian blinds, a 2-zone EC window configuration provided average daily lighting energy savings of 10-15% compared to the reference case with fully lowered Venetian blinds. Cooling load reductions were 0-3%. If the reference case assumes no daylighting controls, lighting energy savings would be 44-11%. Peak demand reductions due to window cooling load, given a critical demand-response mode, were 19-26% maximum on clear sunny days. Peak demand reductions in lighting energy use were 0% or 72-100% compared to a reference case with and without daylighting controls, respectively. Lighting energy use was found to be very sensitive to how glare and sun is controlled. Additional research should be conducted to fine-tune EC control for visual comfort based on solar conditions so as to increase lighting energy savings.

430

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Understanding Windows Understanding Windows Benefits of Energy Efficient Windows The purpose for windows is to provide natural light, natural ventilation, and views to the outside. The benefits of high performance windows allows for Energy & Cost Savings, Improved Comfort, Less Condensation, Increased Light & View, Reduced Fading, and Lower HVAC Costs. Benefits of Energy Efficient Windows Design Considerations Windows are a complex and interesting element in residential design. New window products and technologies have changed the performance of windows in a radical way. Issues such as climate, orientation, shading, and window area all effect the energy performance, but human factor issues such as access to fresh air, daylight, and natural views impact the comfort of a home.

431

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Repair Existing Windows Repair Existing Windows Lead Paint and Window Replacement: Challenges and Opportunities In older homes, windows are a likely source of lead contamination in homes. Dust from lead paint can create serious health problems, especially in young children. While window replacement can increase lead dust during renovation, it can also permanently eliminate lead hazards by removing lead-painted windows. Download fact sheet» A variety of options exist for improving the energy-efficiency of your existing windows. Before investing in these options, check your windows for potential issues that may call for replacement instead: Moisture and mold between window frame and wall: If water and water vapors are allowed to penetrate around the window frame, the moisture can

432

Energy Savings from Window Attachments  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

from 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 Robert Hart Robin Mitchell Simon Vidanovic 1 ENERGY SAVINGS FROM WINDOW ATTACHMENTS TABLE OF CONTENTS: TABLE OF CONTENTS:................................................................................................... 1 1. EXECUTIVE SUMMARY ......................................................................................... 3

433

Energy Savings from Window Attachments  

NLE Websites -- All DOE Office Websites (Extended Search)

from 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 Robert Hart Robin Mitchell Simon Vidanovic 1 ENERGY SAVINGS FROM WINDOW ATTACHMENTS TABLE OF CONTENTS: TABLE OF CONTENTS:................................................................................................... 1 1. EXECUTIVE SUMMARY ......................................................................................... 3

434

Solar heated rotary kiln  

SciTech Connect

A solar heated rotary kiln utilized for decomposition of materials, such as zinc sulfate. The rotary kiln has an open end and is enclosed in a sealed container having a window positioned for directing solar energy into the open end of the kiln. The material to be decomposed is directed through the container into the kiln by a feed tube. The container is also provided with an outlet for exhaust gases and an outlet for spent solids, and rests on a tiltable base. The window may be cooled and kept clear of debris by coolant gases.

Shell, Pamela K. (Tracy, CA)

1984-01-01T23:59:59.000Z

435

WINDOW 6.2/THERM 6.2 Research Version User Manual  

NLE Websites -- All DOE Office Websites (Extended Search)

WINDOW 6.2/THERM 6.2 Research Version User Manual WINDOW 6.2/THERM 6.2 Research Version User Manual Title WINDOW 6.2/THERM 6.2 Research Version User Manual Publication Type Report LBNL Report Number LBNL-813E Year of Publication 2008 Authors Mitchell, Robin, Christian Kohler, Joseph H. Klems, Michael D. Rubin, Dariush K. Arasteh, Charlie Huizenga, Tiefeng Yu, and Dragan C. Curcija Call Number LBNL-813E Abstract WINDOW 6 and THERM 6 Research Versions are software programs developed at Lawrence Berkeley National Laboratory (LBNL) for use by manufacturers, engineers, educators, students, architects, and others to determine the thermal and solar optical properties of glazing and window systems. WINDOW 6 and THERM 6 are significant updates to LBNL's WINDOW 5 and THERM 5 computer program because of the added capability to model complex glazing systems, such as windows with shading systems, in particular venetian blinds. Besides a specific model for venetian blinds and diffusing layers, WINDOW 6 also includes the generic ability to model any complex layer if the Transmittance and Reflectance are known as a function of incoming and outgoing angles.

436

Analysis methodology for passive heating systems in the NSDN. [National Solar Data Network  

Science Conference Proceedings (OSTI)

The National Solar Data Network (NSDN) has been continuously monitoring the performance of solar energy systems in buildings throughout the country on a 24-hour basis for the past three years. The data collected from this program is analyzed and performance evaluation reports are published monthly and seasonally for each site. The passive systems in the NSDN are instrumented with an average of 90 sensors to measure weather; heat loss and gain, auxiliary energy and electrical energy consumption; operation of windows, doors, vents, and movable insulation, temperatures and relative humidity of the rooms; and surface and gradient temperatures of all thermal storage masses. The sensors are scanned at 30 second or 5 minute intervals continuously. Performance factors are calculated on the scan, hourly, daily, monthly and annual level. The approach to the performance analysis of passive solar heating systems is presented.

Spears, J.W.

1981-01-01T23:59:59.000Z

437

Energy-Efficient Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy-Efficient Windows Energy-Efficient Windows Energy-Efficient Windows June 18, 2012 - 8:39am Addthis 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. What does this mean for me? The windows in your house let in light and air if they're operable, but they can also be weak spots in your home's thermal envelope. When replacing windows, purchase the most energy-efficient windows you can afford, because they will pay for themselves over their lifetimes. Windows provide our homes with light, warmth, and ventilation, but they can also negatively impact a home's energy efficiency. You can reduce energy

438

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Benefits of Efficient Windows Benefits of Efficient Windows Looking for information on windows for a new house? Window Selection Tool Selection Process Design Guidance Installation Looking for information on replacement windows? Window Selection Tool Assessing Options Selection Process Design Guidance Installation Energy & Cost Savings Energy efficient windows can substantially reduce the costs associated with heating and cooling. This section on Energy & Cost Savings illustrates these savings in both heating and cooling climates. Energy Savings Lower HVAC Costs High-performance windows not only provide reduced annual heating and cooling bills, they also reduce the peak heating and cooling loads. This section on Lower HVAC Cost illustrates how the use of high performance windows can help in reducing HVAC equipment sizing.

439

3.4 Timeline Zoomable Window  

NLE Websites -- All DOE Office Websites (Extended Search)

.1 Zoomable and Scrollable Up: 3. Graphical User Interface .1 Zoomable and Scrollable Up: 3. Graphical User Interface Previous: 3.3 Legend Window Contents 3.4 Timeline Zoomable Window Figure 3.10: Initial display of the Timeline window of a 514 MB 16-process slog2 file with default preview resolution. Image timeline_popup Most of the advanced features in the SLOG-2 viewer are provided through a zoomable window. Jumpshot-4 has two zoomable windows: Timeline and Histogram. Figure 3.10 is the initial display of the Timeline window of a half-gigabyte 16-timeline slog2 file. The zoomable window consists of several concealable and removable components. In the center of the window is the zoomable and scrollable canvas. For the Timeline window, the center canvas is called the timeline canvas. Directly on top of the zoomable

440

Energy-Efficient Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy-Efficient Windows Energy-Efficient Windows Energy-Efficient Windows June 18, 2012 - 8:39am Addthis 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. What does this mean for me? The windows in your house let in light and air if they're operable, but they can also be weak spots in your home's thermal envelope. When replacing windows, purchase the most energy-efficient windows you can afford, because they will pay for themselves over their lifetimes. Windows provide our homes with light, warmth, and ventilation, but they can also negatively impact a home's energy efficiency. You can reduce energy

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


441

Translucent patches—dissolving windows  

Science Conference Proceedings (OSTI)

This paper presents motivation, design, and algorithms for using and implementing translucent, non-rectangular patches as a substitute for rectangular opaque windows. The underlying metaphor is closer to a mix between the architects yellow paper and ... Keywords: interaction techniques, interface metaphors, irregular shapes, pen based interfaces, translucency

Axel Kramer

1994-11-01T23:59:59.000Z

442

Paradox 7 for Windows 95  

Science Conference Proceedings (OSTI)

From the Publisher:Appropriate for either self-paced or group learning, this book provides an excellent way to learn Paradox 7.0 in a short period of time. The text/template package covers the most commonly used features of Paradox 7 for Windows 95.

Betsy Newberry

1997-05-01T23:59:59.000Z

443

EERE Roofus' Solar and Efficient Home: Find-a-Word  

NLE Websites -- All DOE Office Websites (Extended Search)

Windows Activities Pizza Box Solar Oven Sundial Word Game Coloring Page Printable Version Find-a-Word Can you help Roofus find the words that he uses in his solar house? Find the...

444

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Windows for New Construction Windows for New Construction Window Selection Tool Use the Window Selection Tool for new construction to compare performance of 20 different window types in your location. The Window Selection Tool will take you through a series of design conditions pertaining to your design and location. It is a step-by-step decision-making tool to help determine the most energy efficient window for your house. Window Selection Tool Window Selection Process This section provides step-by-step guidance on the window selection process for new construction windows including issues of code, energy, durability, and installation. Design Guidance This section provides Design Guides that examine the energy use impacts of new windows for homes in hot, mixed and cold climates. They show the the impact of orientation, window area, and shading. The energy use has been calculated for various window design variations including 5 orientations (equal, north, east, south, and west), 3 glazing areas, 20 glazing types, and 5 shading conditions.

445

THERMAL PERFORMANCE OF INSULATING WINDOW SYSTEMS  

E-Print Network (OSTI)

Heat Mirrors for Passive Solar Heating Applications", LBLsolar collector and passive solar heating applications with

Selkowitz, Stephen E.

2011-01-01T23:59:59.000Z

446

Survey Research on gain scheduling  

Science Conference Proceedings (OSTI)

Current research on gain scheduling is clarifying customary practices as well as devising new approaches and methods for the design of nonlinear control systems. Keywords: Gain scheduling, Linear parameter-varying systems, Nonlinear control systems

Wilson J. Rugh; Jeff S. Shamma

2000-10-01T23:59:59.000Z

447

High Performance Windows Volume Purchase: Information Resources  

NLE Websites -- All DOE Office Websites (Extended Search)

Information Information Resources to someone by E-mail Share High Performance Windows Volume Purchase: Information Resources on Facebook Tweet about High Performance Windows Volume Purchase: Information Resources on Twitter Bookmark High Performance Windows Volume Purchase: Information Resources on Google Bookmark High Performance Windows Volume Purchase: Information Resources on Delicious Rank High Performance Windows Volume Purchase: Information Resources on Digg Find More places to share High Performance Windows Volume Purchase: Information Resources on AddThis.com... Home About For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers For Utilities Information Resources Information Resources Numerous publications will be available to help educate buyers, product

448

Performance of Solar Facade Components  

E-Print Network (OSTI)

of these products by developing and applying appropriate methods for assessment of durability, reliability materials · Daylighting products · Solar protection devices (e.g., blinds) · PV windows · Solar collector components are investigated. Physical models are further developed that allow component performance

449

Soiling of building envelope surfaces and its effect on solar reflectance Part I: Analysis of roofing product databases  

E-Print Network (OSTI)

solar heat gain. Solar Energy. 84: 1717-1744. Levinson, R. ,of practical methods. Solar Energy. 84: 1745-1759. Zielecka,2011 (e) Resubmitted to Solar Energy Materials & Solar Cells

Sleiman, Mohamad

2013-01-01T23:59:59.000Z

450

The harmonization of Canadian and U.S. window programs and standards. Final report  

SciTech Connect

The window and door industry in North America have a strong interest in harmonizing US and Canadian rating procedures and standards for predicting the thermal performance of their products. The costs and time associated with complying with the requirements in both countries are significant and could be reduced through reciprocity. The purpose of this paper is to compare the US and Canadian rating programs. Joint efforts between the US and Canada can use this information to focus on reconciling the differences and to work towards reciprocity. The following identifies the applicable procedures and standards for both countries, and summarizes the major differences in the products that are covered, the sizes that are used, the U-factor and solar heat gain coefficient calculational and test methods, air leakage measurement, prediction of annual energy use, condensation resistance methods, reporting requirements, and accreditation and certification programs. The major differences between the system s are identified and recommendations are made to achieve reciprocity. The appendix contains a paper that is a synopsis of the findings from this study.

NONE

1995-05-31T23:59:59.000Z

451

Reflective insulating blinds for windows and the like  

DOE Patents (OSTI)

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.

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

1979-12-07T23:59:59.000Z

452

Reflective insulating blinds for windows and the like  

DOE Patents (OSTI)

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.

Barnes, Paul R. (Lenoir City, TN); Shapira, Hanna B. (Oak Ridge, TN)

1981-01-01T23:59:59.000Z

453

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Sash Replacement Sash Replacement DIY Network: How to Install a Window Sash Replacement Kit The DIY Network experts show you how to remove the window sash from an old double-hung window and install a new energy-saving sash replacement kit: How to Install a Window Sash Replacement Kit exit disclaimer . Sash replacement may be an alternative to a full window replacement or an insert window into an existing frame. The physical condition of the existing window must be good-there should be no moisture or air leakage. An energy auditor or replacement contractor may help you determine if a sash replacement is a viable option based on your homes window and wall conditions. Many manufacturers offer replacement sash kits, which include jamb liners to ensure good operability and fit. This option allows for relatively easy

454

RUGGED CERAMIC WINDOW FOR RF APPLICATIONS  

Science Conference Proceedings (OSTI)

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.

MIKE NEUBAUER

2012-11-01T23:59:59.000Z

455

An analysis of residential window waterproofing systems  

E-Print Network (OSTI)

The prevalence of vinyl nail-on windows in the North American new home construction market has prompted ASTM International to write ASTM E2112-01 "Standard Practice for Installation of Exterior Windows, Doors and Skylights". ...

Parsons, Austin, 1959-

2004-01-01T23:59:59.000Z

456

Linux-käyttäjä Windows-aktiivihakemistossa.  

E-Print Network (OSTI)

??Tämän työn tarkoituksena oli tutkia ja toteuttaa Linux-käyttöjärjestelmästä kirjautumista Windows-aktiivihakemistoon. Tämä saavutettiin luomalla aktiivihakemiston toimialueeseen käyttäjä, jonka oli tarkoitus pystyä kirjautumaan sekä Windows- että Linux-käyttöjärjestelmistä… (more)

Metsäjoki, Kari

2008-01-01T23:59:59.000Z

457

Windows Phone abonento steb?jimo sistema.  

E-Print Network (OSTI)

??Magistro darbe nagrin?jamos šiuolaikin?s „Microsoft“ kompanijos sukurtos technologijos: operacin?s sistemos, skirtos mobiliems ?renginiams – „Windows Phone 7“ ir „Windows Mobile 6“, program? k?rimas, remiantis „Silverlight“… (more)

Krav?enko,; Andrej

2011-01-01T23:59:59.000Z

458

GPS Meteorology: Sliding-Window Analysis  

Science Conference Proceedings (OSTI)

The sliding-window technique uses a moving time window to select GPS data for processing. This makes it possible to routinely incorporate the most recently collected data and generate estimates for atmospheric delay or precipitable water in (near)...

James Foster; Michael Bevis; Steven Businger

2005-06-01T23:59:59.000Z

459

Effectiveness of External Window Attachments Based on Daylight Utilization and Cooling Load Reduction for Small Office Buildings in Hot Humid Climates  

E-Print Network (OSTI)

This study explored the effectiveness of selected external shading devices and glazing treatments used to minimize the total annual energy consumption in small office buildings in hot humid climates. The external shading devices included a permanent horizontal overhang and a light shelf. The selected types of glazing included clear, reflective, tinted, low-emissivity coating, and heat-mirror glass. One concern about using external window attachments is that while reducing the solar heat gains, they also reduce the amount of the daylight needed to supplement interior lighting. Therefore the objective of this study was to explore which strategy would give a balance between solar heat gain reduction and daylight utilization and result in the most energy savings in the building. Computer simulations using an hourly energy calculation model were conducted to predict the building's total energy consumption using each strategy. The economics of each strategy were analyzed with lifecycle costing techniques using the present value technique. Results show that properly designed overhangs that shade clear glazing are slightly more cost-effective than specialized low-e glazing systems. These results are unique for hot humid climates where winter heating is not an issue. On the contrary, when used in cold climates, external shading devices tend to increase the building's energy consumption.

Soebarto, V. I.; Degelman, L. O.

1994-01-01T23:59:59.000Z

460

Aerogel: a transparent insulator for solar applications  

SciTech Connect

Aerogel is a transparent, low density, insulating material suitable for a variety of solar applications. Significant energy savings can be realized by using aerogel for a window glazing material. Other possible applications include solar collector covers, transparent insulating jackets for direct gain passive solar devices, and situations that require both transparency and good insulation. Because silica aerogel has a low density (2 to 10% solid), it has a thermal conductivity as low as 0.014 W/m/sup 0/K without evacuation, and if evacuated, lower than 0.006 W/m/sup 0/K. It provides a clear view with only slight coloring due to its weak and nearly isotropic scattering of light. This paper describes significant progress made in the past year at our laboratory in the development of aerogel. We have improved the transparency, developed new preparation methods using less toxic materials, and initiated successful experiments in drying alcogels at near ambient temperature. Optical transmission, light scattering, and electron microscopy data show that CO/sub 2/ supercritical drying of alcogels produces aerogels similar in quality to those produced by high temperature supercritical drying. These advances make the commercial production of aerogel much more feasible.

Hunt, A.J.; Russo, R.E.; Tewari, P.H.; Lofftus, K.D.

1985-06-01T23:59:59.000Z

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


461

Experimental observation of a complex periodic window  

E-Print Network (OSTI)

The existence of a special periodic window in the two-dimensional parameter space of an experimental Chua's circuit is reported. One of the main reasons that makes such a window special is that the observation of one implies that other similar periodic windows must exist for other parameter values. However, such a window has never been experimentally observed, since its size in parameter space decreases exponentially with the period of the periodic attractor. This property imposes clear limitations for its experimental detection.

D. M. Maranhão; M. S. Baptista; J. C. Sartorelli; I. L. Caldas

2007-12-22T23:59:59.000Z

462

WebCAT: Installation Instructions for Windows  

Science Conference Proceedings (OSTI)

... WebCAT. Note: Windows ME does not ship with a webserver; Apache can be installed. Download and Install, Download ...

463

Neutrinos: Windows to New Physics  

E-Print Network (OSTI)

After briefly reviewing how the symmetries of the Standard Model (SM) are affected by neutrino masses and mixings, I discuss how these parameters may arise from GUTs and how patterns in the neutrino sector may reflect some underlying family symmetry. Leptogenesis provides a nice example of how different physical phenomena may be connected to the same neutrino window of physics beyond the SM. I end with some comments on the LSND signal and briefly discuss the idea that neutrinos have environment dependent masses.

R. D. Peccei

2006-09-20T23:59:59.000Z

464

Stanek Windows | Open Energy Information  

Open Energy Info (EERE)

Stanek Windows Stanek Windows Jump to: navigation, search Name Stanek Windows Address 4565 Willow Parkway Place Cuyahoga Heights, Ohio Zip 44125 Sector Buildings, Efficiency Product Consulting; Installation; Maintenance and repair;Manufacturing; Retail product sales and distribution;Trainining and education Phone number 216-341-7700 Website http://www.stanekwindows.com Coordinates 41.435755°, -81.650183° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.435755,"lon":-81.650183,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

465

Solar panel  

SciTech Connect

A solar panel is shown for use as a double panel window structure. It has an outer frame formed by an H-shaped extrusion that has one of its outermost legs shortened, and a pair of generally parallel legs or flanges that are inwardly directed of the frame. The outer surface of these flanges are furnished with a dual pressure-sensitive adhesive tape having a width between 1/4 inch and 1 inch. A pane of transparent material is sealed around its periphery into engagement with the adhesive tape for forming a double pane solar panel. Several modifications are also shown for exerting a mechanical locking force on at least one of the panes.

Sitzler, E.R.; Moore, F.W.

1984-06-19T23:59:59.000Z

466

Window selection: problems and promise of glass  

SciTech Connect

In the past few years, technical innovations in glass and window design have made windows more energy efficient, reducing energy costs and increasing the comfort levels in buildings. These innovations make it possible for occupants to enjoy the benefits of real windows while enabling owners and managers to lower overall operating costs. 1 figure, 1 table.

1986-04-01T23:59:59.000Z

467

700 MHz window R & D at LBNL  

E-Print Network (OSTI)

foil ($1036.5/150", 3 windows) 1. Measure ceramic and keeperCBP tech note 230 700 MHz Window R&D at LBNL R. Rimmer, G.001-99 2A "700 MHz RF Window" from LANL. The Conceptual

Rimmer, R.A.; Koehler, G.; Saleh, T.; Weidenbach, R.

2000-01-01T23:59:59.000Z

468

Manahmen fr MS Windows Betriebssysteme Gerd Hofmann  

E-Print Network (OSTI)

Ma�nahmen für MS Windows Betriebssysteme Gerd Hofmann IT-Sicherheitsforum - Betriebssystemsicherheit 24. Juni 2004 #12;24.06.04 gerd.hofmann@rrze.uni-erlangen.de 2Windows Sicherheit Vorstellung Gerd-85-28920 RRZE: Raum RZ 2.013 #12;24.06.04 gerd.hofmann@rrze.uni-erlangen.de 3Windows Sicherheit Inhaltsliste

Fiebig, Peter

469

Microsoft Windows Server 2008 Administrator Series  

E-Print Network (OSTI)

Microsoft Windows Server 2008 Administrator Series Led by: Dianne Burke, MCSE and UM Faculty Member emergency such as a medical emergency to drop out of either one of Windows Server 2008 class before on Microsoft Windows Server 2008. The series prepares IT Professionals for the Microsoft Certified Technology

Crone, Elizabeth

470

Dell recommends Windows 7. Colorado State University  

E-Print Network (OSTI)

Dell recommends Windows® 7. Print Page Colorado State University E-quote Number: 1005723185631 E Dell Latitude E6520 - Fully Customizable Qty 1 Latitude E6520, Genuine Windows® 7 Professional Latitude E6520 Latitude E6520 Operating Systems Genuine Windows® 7 Professional, No Media, 64- bit, English

471

Focus Windows: A Tool for Automated Provers ?  

E-Print Network (OSTI)

Focus Windows: A Tool for Automated Provers ? Florina Piroi Research Institute For Symbolic or understand the validity of a particular step. Focus windows were #12;rst introduced as a technique for proof the implementation and the use of the focus windows technique in the frame of the Theorema system [3]. One

472

Computing & Communications WIRELESS SETUP FOR WINDOWS 7  

E-Print Network (OSTI)

Computing & Communications WIRELESS SETUP FOR WINDOWS 7 For assistance during the configuration access to the WLAN and have laptops and desktops which use the Windows 7 operating system. It is provided. Requirements: A laptop with Windows 7 operating system with latest service pack and patches applied. A wireless

Warkentin, Ian G.

473

Windows Server 2008 R2 Licensing Guide  

E-Print Network (OSTI)

Windows Server 2008 R2 Licensing Guide m Your Comprehensive Resource for Licensing and Pricing #12;2 Table of Contents Summary 3 Table of Windows Server 2008 R2 Core Product Offerings 3 License Terms ­ Windows Server 2008 R2 Product Line Updates 4 Edition Comparison by Server Role 5 New and Updated Features

Narasayya, Vivek

474

A Host Intrusion Prevention System for Windows Operating Systems  

Science Conference Proceedings (OSTI)

this technique to Windows OS, also because Windows kernel structures ... vention System (HIPS) for Windows OS that immediately detects security rules.

475

WINDOW 5 Final Pre-Release User's Manual  

NLE Websites -- All DOE Office Websites (Extended Search)

A PC Program WINDOW 6.2 THERM 6.2 Research Version User Manual For Analyzing Window Thermal Performance Windows & Daylighting Group Building Technologies Program Environmental...

476

A Design Guide for Early-Market Electrochromic Windows  

E-Print Network (OSTI)

This attachment, “Advancement of Electrochromic Windows:attachments to the “Advancement of Electrochromic Windows:attachment to the final report for the Advancement of Electrochromic Windows

2006-01-01T23:59:59.000Z

477

BREWSTER WINDOW AND WINDOWLESS RESONANT SPECTROPHONES FOR INTRACAVITY OPERATION  

E-Print Network (OSTI)

to 6 KHz measured with windows attached. Variation of thethe spectrophone is operated with windows. Table IV. Factorsto Applied Physics BREWSTER WINDOW AND WINDOWLESS RESONANT

Gerlach, Robert

2012-01-01T23:59:59.000Z

478

Evolution of the Thrombolytic Treatment Window for Acute Ischemic Stroke  

E-Print Network (OSTI)

is the ultimate goal, regardless of an expanded time window.the Thrombolytic Treatment Window for Acute Ischemic Strokefor treatment in this time window. Expanding the time for

Stemer, Andrew; Lyden, Patrick

2010-01-01T23:59:59.000Z

479

Window signalling systems: control strategies and occupant behaviour  

E-Print Network (OSTI)

Occupant response to window control signaling systems (CBEDaly, A. (2002). Operable windows and HVAC systems. HPACK. (2008). The use of windows as controls for indoor

Ackerly, Katie; Brager, Gail

2013-01-01T23:59:59.000Z

480

THE MOBILE WINDOW THERMAL TEST FACILITY (MoWiTT)  

E-Print Network (OSTI)

December 3-5, 1979 THE MOBILE WINDOW THERMAL TEST FACILITY (Orlando, Florida. The Mobile Window Thermal Test Facility (Press, 197 . THE NOBILE WINDOW THERMAL TEST FACILITY (

Klems, J. H.

2011-01-01T23:59:59.000Z

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


481

Microsoft Windows Server 2003 security enhancements and new features .  

E-Print Network (OSTI)

??The purpose of this thesis is to discuss the new features and enhancements of Windows Server 2003. Windows NT and Windows 2000 were known to… (more)

Montehermoso, Ronald Centeno.

2004-01-01T23:59:59.000Z

482

A Design Guide for Early-Market Electrochromic Windows  

E-Print Network (OSTI)

T. Wilmert. 2004. Window Systems for High Performanceof electrochromic windows: a pilot study”, Building andfor an Electrochromic Window Wall Attached are curtainwall

2006-01-01T23:59:59.000Z

483

Modeling Windows in Energy Plus with Simple Performance Indices  

E-Print Network (OSTI)

Modeling Windows in Energy Plus with Simple Performanceof California. Modeling Windows in Energy Plus with SimpleE+), cannot use standard window performance indices (U,

Arasteh, Dariush

2010-01-01T23:59:59.000Z

484

AN ENERGY EFFICIENT WINDOW SYSTEM FINAL REPORT.  

E-Print Network (OSTI)

greenhouses, passive solar heating and other non-viewingpassive and active solar heating systems. the fact remainsthe expense of winter solar heating), Life Cycle Costing We

Authors, Various

2011-01-01T23:59:59.000Z

485

A Review of Electrochromic Window Performance Factors  

E-Print Network (OSTI)

ranges: the entire solar spectrum, the visible subspectrumeither the visible or solar spectrum.. From the range ofwavelength end of the solar spectrum where there is not much

Selkowitz Ed, S.E.

2010-01-01T23:59:59.000Z

486

Solar radiation data manual for buildings  

DOE Green Energy (OSTI)

Architects and engineers use solar resource information to help design passive solar and daylighting features for buildings. Solar resource information includes data on how much solar radiation and illuminance are available for different window orientations, and how they vary. This manual provides solar radiation and illuminance values for a horizontal window and four vertical windows (facing north, east, south, and west) for 239 stations in the United States and its territories. The solar radiation values are monthly and yearly averages for the period of 1961--1990. Included are values showing the solar radiation incident on the window and the amount transmitted into the living space, with and without exterior shading of the window. Illuminance values are presented r average dismal profiles for 4 months of the year. In addition to the solar radiation and illuminance data, this manual contains tables listing climatic condition such as average temperature, average daily minimum and maximum temperature, record minimum and maxi mum temperature, average heating and cooling degree days, average humidity ratio, average wind speed, an average clearness index. The solar radiation, illuminance, and climatic data a presented in tables. Data for each station are presented on a single page, and the pages are arranged alphabetically by the state or territory two-letter abbreviation. Within a state or territory, the pages are arranged alp betically by city or island.

Marion, W.; Wilcox, S.

1995-09-01T23:59:59.000Z

487

EMasticWindows: improvedSpatial Layoutand Rapid MuRipmeWindow Operations  

E-Print Network (OSTI)

Symposium of the Washington, DC Chapter of the ACM, (1991), pp. t21-131. 16. Malone, T. W., How do peopleEMasticWindows: improvedSpatial Layoutand Rapid MuRipmeWindow Operations Eser Kandogan Department)405-2680 ben@cs.umd.edu ABSTRACT Most windowing systems follow the independent overlap- ping windows approach

Shneiderman, Ben

488

Environmental WindowsEnvironmental Windows Real Problems and PotentialReal Problems and Potential  

E-Print Network (OSTI)

Environmental WindowsEnvironmental Windows Real Problems and PotentialReal Problems and Potential Window - a period during which dredging may occur Seasonal Restriction - a period during which dredging and effective management guidelines such as dredging windows..." #12;Schubel et al. 1979. A conceptual framework

US Army Corps of Engineers

489

Savings from energy efficient windows: Current and future savings from new fenestration technologies in the residential market  

SciTech Connect

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.

Frost, K.; Arasteh, D.; Eto, J.

1993-04-01T23:59:59.000Z

490

Purged window apparatus utilizing heated purge gas  

DOE Patents (OSTI)

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.

Ballard, Evan O. (Los Alamos, NM)

1984-01-01T23:59:59.000Z

491

Rigid thin windows for vacuum applications  

DOE Patents (OSTI)

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.

Meyer, Glenn Allyn (Danville, CA); Ciarlo, Dino R. (Livermore, CA); Myers, Booth Richard (Livermore, CA); Chen, Hao-Lin (Lafayette, CA); Wakalopulos, George (Pacific Palisades, CA)

1999-01-01T23:59:59.000Z

492

Solar application in Tunisia  

SciTech Connect

Various solar applications were constructed in Tunisia during a program sponsored by the Save the Children Federation. The solar applications were constructed in three community schools, a community wool workshop, a new prototype low income residence, an office, and several residences; solar water heating installations were also built. A modified Trombe wall was constructed partially with metal, thermal mass, and direct gain in a school. The low income residence was equipped with a Trombe wall, a roof overhang, and insulation. Passive solar water heating installations included a mini solar pond and a bottom loading batch water heater. The people and culture of Tunisia are discussed and appropriate technology for the country is reviewed.

Hopman, F.

1979-12-01T23:59:59.000Z

493

Solar collector  

DOE Patents (OSTI)

The field of this invention is solar collectors, and more particularly, the invention pertains to a flat plate collector that employs high performance thin films. The solar collector of this invention overcomes several problems in this field, such as excessive hardware, cost and reliability, and other prior art drawbacks outlined in the specification. In the preferred form, the apparatus features a substantially rigid planar frame (14). A thin film window (42) is bonded to one planar side of the frame. An absorber (24) of laminate construction is comprised of two thin film layers (24a, 24b) that are sealed perimetrically. The layers (24a, 24b) define a fluid-tight planar envelope (24c) of large surface area to volume through which a heat transfer fluid flows. Absorber (24) is bonded to the other planar side of the frame. The thin film construction of the absorber assures substantially full envelope wetting and thus good efficiency. The window and absorber films stress the frame adding to the overall strength of the collector.

Wilhelm, William G. (Cutchogue, NY)

1982-01-01T23:59:59.000Z

494

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Performance Standards Performance Standards Even the expert eye cannot easily tell an efficient window from a conventional window. That is why energy ratings, endorsement programs and consumer incentives play an important role in creating awareness for window energy efficiency among consumers, builders, architects and performance standard programs. Learn about NFRC certification and labeling Learn about ENERGY STAR® for windows, doors and skylights High Performance Windows and Low-E Storm Windows Volume Purchase Program Utility and State Incentives for energy efficiency improvements Building Codes Most locations have building energy codes that mandate minimum performance levels for windows, doors, and skylights. The builder, contractor or homeowner must adhere to the code requirements, which typically cover

495

High Performance Windows Volume Purchase: Contacts  

NLE Websites -- All DOE Office Websites (Extended Search)

Contacts to Contacts to someone by E-mail Share High Performance Windows Volume Purchase: Contacts on Facebook Tweet about High Performance Windows Volume Purchase: Contacts on Twitter Bookmark High Performance Windows Volume Purchase: Contacts on Google Bookmark High Performance Windows Volume Purchase: Contacts on Delicious Rank High Performance Windows Volume Purchase: Contacts on Digg Find More places to share High Performance Windows Volume Purchase: Contacts on AddThis.com... Home About For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers For Utilities Information Resources Contacts Web site and High Performance Windows Volume Purchase Program contacts are provided below. Website Contact Send us your comments, report problems, and/or ask questions about

496

Welcome to the Efficient Windows Collaborative  

NLE Websites -- All DOE Office Websites (Extended Search)

Ensure Proper Installation of New Windows Ensure Proper Installation of New Windows Information Regarding Lead-based Hazards Comprehensive information about lead paint exit disclaimer by U.S. EPA Literature ASTM E 2112, "Standard Practice for Installation of Exterior Windows, Doors and Skylights." www.astm.org exit disclaimer Water Management Guide, Joseph W. Lstiburek, Energy & Environmental Building Association. www.eeba.org exit disclaimer Proper installation is necessary for optimal window performance, to ensure an airtight fit and avoid water leakage. Always follow manufacturers installation guidelines and use trained professionals for window installation. The Importance of Quality Window Installation Quite simply, windows are only as good as their installation. Proper installation will:

497

Making Smart Windows Smarter | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Smart Windows Smarter 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 Program Director, Building Technologies Office What does this project do? Pleotint, LLC has developed a specialized glass film that uses the energy generated by the sun to limit excess heat and light from coming into homes and buildings. When you look out the window, you m