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Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

EA-1911: Energy Conservation Standards for Certain Reflector, Elliptical Reflector, and Bulged Reflector Incandescent Lamps  

Broader source: Energy.gov [DOE]

This EA will evaluate the environmental impacts of a proposal to amend energy conservation standards for Certain Reflector, Elliptical Reflector, and Bulged Reflector Incandescent Lamps.

2

2014-04-11 Issuance: Energy Conservation Standards for General Service Fluorescent Lamps and Incandescent Reflector Lamps; Notice of Proposed Rulemaking  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register notice of proposed rulemaking regarding energy conservation standards for general service fluorescent lamps and incandescent reflectors lamps, as issued by the Assistant Secretary for Energy Efficiency and Renewable Energy on April 11, 2014.

3

DOE Requires Manufacturer and Labeler to Cease Sale of Incandescent...  

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

Manufacturer and Labeler to Cease Sale of Incandescent Reflector Lamps DOE Requires Manufacturer and Labeler to Cease Sale of Incandescent Reflector Lamps June 24, 2010 - 2:40pm...

4

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 Through 2010  

E-Print Network [OSTI]

Fluorescent Lamps and Incandescent Reflector Lamps MediumBallasts and Fixtures General Service Incandescent Lamps,Intermediate Base Incandescent Lamps and Candelabra Base

Meyers, Stephen

2013-01-01T23:59:59.000Z

5

Photonically Engineered Incandescent Emitter  

DOE Patents [OSTI]

A photonically engineered incandescence is disclosed. The emitter materials and photonic crystal structure can be chosen to modify or suppress thermal radiation above a cutoff wavelength, causing the emitter to selectively emit in the visible and near-infrared portions of the spectrum. An efficient incandescent lamp is enabled thereby. A method for fabricating a three-dimensional photonic crystal of a structural material, suitable for the incandescent emitter, is also disclosed.

Gee, James M. (Albuquerque, NM); Lin, Shawn-Yu (Albuquerque, NM); Fleming, James G. (Albuquerque, NM); Moreno, James B. (Albuquerque, NM)

2005-03-22T23:59:59.000Z

6

High efficiency incandescent lighting  

DOE Patents [OSTI]

Incandescent lighting structure. The structure includes a thermal emitter that can, but does not have to, include a first photonic crystal on its surface to tailor thermal emission coupled to, in a high-view-factor geometry, a second photonic filter selected to reflect infrared radiation back to the emitter while passing visible light. This structure is highly efficient as compared to standard incandescent light bulbs.

Bermel, Peter; Ilic, Ognjen; Chan, Walker R.; Musabeyoglu, Ahmet; Cukierman, Aviv Ruben; Harradon, Michael Robert; Celanovic, Ivan; Soljacic, Marin

2014-09-02T23:59:59.000Z

7

Energy-efficient incandescent lamp: Final report  

E-Print Network [OSTI]

of Energy Conserving Incandescent Lamps", J . Brett, R.July 1981. "Filaments for Incandescent Lamps with Radiation20-22 "Energy Saving Incandescent Lamps with Infrared

Verderber, R.

2010-01-01T23:59:59.000Z

8

The incandescent disposal system  

SciTech Connect (OSTI)

The electrotechnology device being introduced to the low-level waste market is an Incandescent Disposal System (IDS) for volume reduction and vitrification. The process changes the composition of the waste material, usually long molecular chains, into simple molecules and elements. It renders the volume of low-level wastes to a manageable solid vitrified residue, carbon black, and a water discharge. The solid material, which has been vitrified if silica is introduced into the waste stream, is an ideal inert filler. The carbon black is non-leaching and is readily available for vitrification as it comes out of the IDS.

Smith, R.G.

1996-03-01T23:59:59.000Z

9

Replacing Incandescent Lightbulbs and Ballasts | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStories ¬Ľ Removing nuclear waste,

10

Replacing Incandescent Lightbulbs and Ballasts | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |EnergyonSupport0.pdf5Post-Holiday HolidayProcessRateofofRenewable EnergyRenewable

11

Underwater Lighting by Submerged Lasers and Incandescent Sources  

E-Print Network [OSTI]

and collimated underwater incandescent projector. The laser-collimated underwater incandescent projector used for beamBY SUBMERGED LASERS and Incandescent Sources DESCRIPTIVE

Duntley, Seibert Q

1971-01-01T23:59:59.000Z

12

Compact Fluorescent Plug-In Ballast-in-a-Socket  

SciTech Connect (OSTI)

The primary goal of this program was to develop a ballast system for plug-in CFLs (compact fluorescent lamps) that will directly replace standard metal shell, medium base incandescent lampholders (such as Levition No. 6098) for use with portable lamp fixtures, such as floor, table and desk lamps. A secondary goal was to identify a plug-in CFL that is optimized for use with this ballast. This Plug-in CFL Ballastin-a-Socket system will allow fixture manufacturers to easily manufacture CFL-based high-efficacy portable fixtures that provide residential and commercial consumers with attractive, cost-effective, and energy-efficient fixtures for use wherever portable incandescent fixtures are used today. The advantages of this proposed system over existing CFL solutions are that the fixtures can only be used with high-efficacy CFLs, and they will be more attractive and will have lower life-cycle costs than screw-in or adapter-based CFL retrofit solutions. These features should greatly increase the penetration of CFL's into the North American market. Our work has shown that using integrated circuits it is quite feasible to produce a lamp-fixture ballast of a size comparable to the current Edison-screw 3-way incandescent fixtures. As for price points for BIAS-based fixtures, end-users polled by the Lighting Research Institute at RPI indicated that they would pay as much as an additional $10 for a lamp containing such a ballast. The ballast has been optimized to run with a 26 W amalgam triple biax lamp in the base-down position, yet can accept non-amalgam versions of the lamp. With a few part alterations, the ballast can be produced to support 32 W lamps as well. The ballast uses GE's existing L-Comp[1] power topology in the circuit so that the integrated circuit design would be a design that could possibly be used by other CFL and EFL products with minor modifications. This gives added value by reducing cost and size of not only the BIAS, but also possibly other integral CFL and future dimmable integral and plug-in versions of the EFL products.

Rebecca Voelker

2001-12-21T23:59:59.000Z

13

Monolithic ballasted penetrator  

DOE Patents [OSTI]

The present invention is a monolithic ballasted penetrator capable of delivering a working payload to a hardened target, such as reinforced concrete. The invention includes a ballast made from a dense heavy material insert and a monolithic case extending along an axis and consisting of a high-strength steel alloy. The case includes a nose end containing a hollow portion in which the ballast is nearly completely surrounded so that no movement of the ballast relative to the case is possible during impact with a hard target. The case is cast around the ballast, joining the two parts together. The ballast may contain concentric grooves or protrusions that improve joint strength between the case and ballast. The case further includes a second hollow portion; between the ballast and base, which has a payload fastened within this portion. The penetrator can be used to carry instrumentation to measure the geologic character of the earth, or properties of arctic ice, as they pass through it.

Hickerson, Jr., James P. (Cedar Crest, NM); Zanner, Frank J. (Sandia Park, NM); Baldwin, Michael D. (Albuquerque, NM); Maguire, Michael C. (Worcester, MA)

2001-01-01T23:59:59.000Z

14

COST EFFECTIVENESS OF LONG LIFE INCANDESCENT LAMPS AND ENERGY BUTTONS  

E-Print Network [OSTI]

as any 1ong-li incandescent lamp or system evaluated in thisEFFECTIVENESS OF LONG LIFE INCANDESCENT LAMPS AND ENERGYEFFECTIVENESS OF LONG LIFE INCANDESCENT LAMPS AND ENERGY

Verderber, Rudy

2013-01-01T23:59:59.000Z

15

Buying an Appliance this Holiday Season? ENERGY STAR Products...  

Office of Environmental Management (EM)

Freezers Room air conditioners Televisions Clothes washers Dishwashers Battery chargers Water heaters Fluorescent lamp ballasts Incandescent reflector lamps If your appliance has...

16

General service incandescent lamp with improved efficiency  

SciTech Connect (OSTI)

A high efficiency general service incandescent lamp is disclosed. The disclosed improved general service incandescent lamp has an outer and an inner envelope. The inner envelope has a relatively small housing containing a halogen gas and a relatively high pressure efficient fill-gas and in which a low voltage filament is spatially disposed therein.

Berlec, I.

1985-06-18T23:59:59.000Z

17

A Bright Idea: New Efficiency Standards for Incandescent and...  

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

A Bright Idea: New Efficiency Standards for Incandescent and Fluorescent Lights A Bright Idea: New Efficiency Standards for Incandescent and Fluorescent Lights July 21, 2009 -...

18

Dual LED/incandescent security fixture  

DOE Patents [OSTI]

A dual LED and incandescent security lighting system uses a hybrid approach to LED illumination. It combines an ambient LED illuminator with a standard incandescent lamp on a motion control sensor. The LED illuminator will activate with the onset of darkness (daylight control) and typically remain on during the course of the night ("always on"). The LED illumination, typically amber, is sufficient to provide low to moderate level lighting coverage to the wall and ground area adjacent to and under the fixture. The incandescent lamp is integrated with a motion control circuit and sensor. When movement in the field of view is detected (after darkness), the incandescent lamp is switched on, providing an increased level of illumination to the area. Instead of an "always on" LED illuminator, the LEDs may also be switched off when the incandescent lamp is switched on.

Gauna, Kevin Wayne

2005-06-21T23:59:59.000Z

19

Visible Spectrum Incandescent Selective Emitter  

SciTech Connect (OSTI)

The purpose of the work performed was to demonstrate the feasibility of a novel bi-layer selective emitter. Selective emitters are incandescent radiant bodies with emissivities that are substantially larger in a selected part of the radiation spectrum, thereby significantly shifting their radiated spectral distribution from that of a blackbody radiating at the same temperature. The major research objectives involved answering the following questions: (1) What maximum VIS/NIR radiant power and emissivity ratios can be attained at 2650 K? (2) What is the observed emitter body life and how does its performance vary with time? (3) What are the design tradeoffs for a dual heating approach in which both an internally mounted heating coil and electrical resistance self-heating are used? (4) What are the quantitative improvements to be had from utilizing a bi-layer emitter body with a low emissivity inner layer and a partially transmissive outer layer? Two approaches to obtaining selective emissivity were investigated. The first was to utilize large optical scattering within an emitter material with a spectral optical absorption that is much greater within the visible spectrum than that within the NIR. With this approach, an optically thick emitter can radiate almost as if optically thin because essentially, scattering limits the distance below the surface from which significant amounts of internally generated radiation can emerge. The performance of thin emitters was also investigated (for optically thin emitters, spectral emissivity is proportional to spectral absorptivity). These emitters were fabricated from thin mono-layer emitter rods as well as from bi-layer rods with a thin emitter layer mounted on a substrate core. With an initially estimated energy efficiency of almost three times that of standard incandescent bulbs, a number of energy, economic and environmental benefits such as less energy use and cost, reduced CO{sub 2} emissions, and no mercury contamination was initially projected. The work performed provided answers to a number of important questions. The first is that, with the investigated approaches, the maximum sustained emitter efficiencies are about 1.5 times that of a standard incandescent bulb. This was seen to be the case for both thick and thin emitters, and for both mono-layer and bi-layer designs. While observed VIS/NIR ratios represent improvements over standard incandescent bulbs, it does not appear sufficient to overcome higher cost (i.e. up to five times that of the standard bulb) and ensure commercial success. Another result is that high temperatures (i.e. 2650 K) are routinely attainable without platinum electrodes. This is significant for reducing material costs. A novel dual heating arrangement and insulated electrodes were used to attain these temperatures. Another observed characteristic of the emitter was significant grain growth soon after attaining operating temperatures. This is an undesirable characteristic that results in substantially less optical scattering and spectral selectivity, and which significantly limits emitter efficiencies to the values reported. Further work is required to address this problem.

Sonsight Inc.

2004-04-30T23:59:59.000Z

20

Tungsten wire for incandescent lamps  

SciTech Connect (OSTI)

Tungsten wire for incandescent lamp filaments must operate at high temperatures and for long times. To meet these requirements, the grain morphology of the wire must be controlled to reduce the propensity for grain boundary sliding. The morphology is a function of the distribution of very small pockets of potassium in the wire and the mechanical processing from ingot to wire. The behavior of the filament is directly related to the grain morphology. This paper describes the mechanism by which the potassium is incorporated into and distributed in the ingot. The elongation and spheroidization of the bubbles during hot rolling and swaging is also examined and related to the grain morphology of wire. Some indications of the relationship between grain morphology and filament behavior are also given.

Walter, J.L.; Briant, C.L. (General Electric Corporate Research and Development, Schenectady, NY (USA))

1990-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

New Reflector CFLs that Can Take the Heat  

SciTech Connect (OSTI)

Reflector compact fluorescent bulbs (R-CFLs) are a wise choice for the energy savvy because they offer energy savings of up to 66 percent compared to incandescent reflectors. But some R-CFLs have suffered performance problems (including premature failure) when used in high-temperature environments, such as recessed downlight fixtures located in insulated ceilings with airtight housings. To help address this issue, the U.S. Dept. of Energy (DOE) is working with lamp manufacturers to improve the quality and performance of screw-based reflector CFLs in high-heat applications.

Vogt, Susan

2005-03-01T23:59:59.000Z

22

Comprehensive Pyrometry of Incandescent Multiwalled Carbon Nanotubes and Graphene in the Visible and Near Infrared  

E-Print Network [OSTI]

4.17 Image of incandescent tungsten ?to collect data from incandescent MWCNTs. An illustration ofand of Carbon at Incandescent Temper- atures,Ē Physical

Singer, Scott

2012-01-01T23:59:59.000Z

23

Oregon Ballast Water Task Force Report on Ballast Water Management in Oregon  

E-Print Network [OSTI]

Oregon Ballast Water Task Force Report on Ballast Water Management in Oregon #12;Oregon Ballast Water Task Force Report on Ballast Water Management in Oregon Prepared for the Oregon State Legislature October 2006 #12;Report on Ballast Water Management in Oregon-2006 Acknowledgements We would like to thank

24

Incandescent Lighting Basics | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomentheATLANTA,Fermi NationalBusiness PlanPosting of| Department ofTheseIncandescent

25

AN ANALYTICAL AND QUANTITATIVE ANALYSIS OF THE LASER-INDUCED INCANDESCENCE OF SOOT  

E-Print Network [OSTI]

AN ANALYTICAL AND QUANTITATIVE ANALYSIS OF THE LASER-INDUCED INCANDESCENCE OF SOOT A Thesis-INDUCED INCANDESCENCE OF SOOT Approved: _________________________ Jerry M. Seitzman, Chairman

Seitzman, Jerry M.

26

Covered Product Category: Fluorescent Ballasts  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance and Federal efficiency requirements across a variety of product categories, including fluorescent ballasts, which are a FEMP-designated product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

27

How Energy-Efficient Light Bulbs Compare with Traditional Incandescent...  

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

could save you about 50 per year in energy costs when you replace 15 traditional incandescent bulbs in your home. Energy-efficient light bulbs are available today and could save...

28

Ballasted photovoltaic module and module arrays  

DOE Patents [OSTI]

A photovoltaic (PV) module assembly including a PV module and a ballast tray. The PV module includes a PV device and a frame. A PV laminate is assembled to the frame, and the frame includes an arm. The ballast tray is adapted for containing ballast and is removably associated with the PV module in a ballasting state where the tray is vertically under the PV laminate and vertically over the arm to impede overt displacement of the PV module. The PV module assembly can be installed to a flat commercial rooftop, with the PV module and the ballast tray both resting upon the rooftop. In some embodiments, the ballasting state includes corresponding surfaces of the arm and the tray being spaced from one another under normal (low or no wind) conditions, such that the frame is not continuously subjected to a weight of the tray.

Botkin, Jonathan (El Cerrito, CA); Graves, Simon (Berkeley, CA); Danning, Matt (Oakland, CA)

2011-11-29T23:59:59.000Z

29

EFFECT OF COAL DUST ONEFFECT OF COAL DUST ON RAILROAD BALLAST STRENGTHRAILROAD BALLAST STRENGTH  

E-Print Network [OSTI]

Triaxial TestsTests Direct Shear TestsDirect Shear Tests Clean and Coal Dust Fouled Ballast BehaviorClean1 EFFECT OF COAL DUST ONEFFECT OF COAL DUST ON RAILROAD BALLAST STRENGTHRAILROAD BALLAST STRENGTH for Laboratory StudyFouling Mechanism / Need for Laboratory Study Mechanical Properties of Coal Dust

Barkan, Christopher P.L.

30

Nuclear reactor reflector  

DOE Patents [OSTI]

A nuclear reactor reflector is disclosed that comprises a stack of reflector blocks with vertical water flow passages to cool the reflector. The interface between blocks is opposite support points for reactor fuel rods. Water flows between the reflector and the reactor barrel from passages in a bottom block. The top block contains a flange to limit this flow and the flange has a slot to receive an alignment pin that is welded to the barrel. The pin is held in the slot by two removable shims. Alignment bars extend the length of the stack in slots machined in each block when the stack is assembled.

Hopkins, Ronald J. (Pensacola, FL); Land, John T. (Pensacola, FL); Misvel, Michael C. (Pensacola, FL)

1994-01-01T23:59:59.000Z

31

Nuclear reactor reflector  

DOE Patents [OSTI]

A nuclear reactor reflector is disclosed that comprises a stack of reflector blocks with vertical water flow passages to cool the reflector. The interface between blocks is opposite support points for reactor fuel rods. Water flows between the reflector and the reactor barrel from passages in a bottom block. The top block contains a flange to limit this flow and the flange has a slot to receive an alignment pin that is welded to the barrel. The pin is held in the slot by two removable shims. Alignment bars extend the length of the stack in slots machined in each block when the stack is assembled. 12 figs.

Hopkins, R.J.; Land, J.T.; Misvel, M.C.

1994-06-07T23:59:59.000Z

32

Cost effectiveness of long life incandescent lamps and energy buttons  

SciTech Connect (OSTI)

Long-life replacement lamps for the incandescent lamp have been evaluated with regard to their cost effectiveness. The replacements include the use of energy buttons that extend lamp life as well as an adaptive fluorescent circline lamp that will fit into existing incandescent lamp sockets. The initial, operating, and replacement costs for one million lumen hours are determined for each lamp system. It is found that the most important component lighting cost is the operating cost. Using lamps that are less efficient or devices that cause lamps to operate less efficiently are not cost-effective. The adaptive fluorescent circline lamp, even at an initial unit cost of $20.00, is the most cost-effective source of illumination compared to the incandescent lamp and lamp systems examined.

Verderber, R.; Morse, O.

1980-04-07T23:59:59.000Z

33

Assessment of soot particle vaporization effects during laser-induced incandescence with  

E-Print Network [OSTI]

Assessment of soot particle vaporization effects during laser-induced incandescence with time-induced incandescence (LII) has been successfully used for soot volume fraction and particle size measurements

Hahn, David W.

34

Report on the Oregon Ballast Water Management Program in 2004  

E-Print Network [OSTI]

Report on the Oregon Ballast Water Management Program in 2004 #12;Acknowledgements We would like Ballast Water Management Program in 2004 Produced for the Oregon State Legislature By The Oregon Ballast State University September 2004 #12;Report on Oregon Ballast Water Management Program 2004 Executive

35

HIGH INTENSITY DISCHARGE (HID) SOLID STATE BALLAST PROGRAM PHASE I FINAL REPORT  

E-Print Network [OSTI]

change in the output power for the solid state ballast asof the solid state ballast's constant output power withswitching power supplies such as the solid state ballast.

Ailing, W.R.

2013-01-01T23:59:59.000Z

36

Metallic photonic-band-gap filament architectures for optimized incandescent lighting Sajeev John and Rongzhou Wang  

E-Print Network [OSTI]

Metallic photonic-band-gap filament architectures for optimized incandescent lighting Sajeev John occur 3,4 . Tra- ditionally incandescent lighting filaments, despite being driven from equilibrium the blackbody spectrum. This suggests the pos- sibility of higher efficiency incandescent lighting, through

John, Sajeev

37

Molecular Dynamics Simulations of Laser Induced Incandescence Dr. Adri van Duin  

E-Print Network [OSTI]

Molecular Dynamics Simulations of Laser Induced Incandescence (LII) Dr. Adri van Duin Associate of Engineering. Laser Induced Incandescence (LII) is a popular method to estimate the properties of soot. Molecular Dynamics Simulations of Laser-Induced Incandescence of Soot Using an Extended ReaxFF Reactive

Bj√łrnstad, Ottar Nordal

38

L'EMISSION ELECTRIQUE DU PLATINE INCANDESCENT DANS UNE ATMOSPHRE D'IODE  

E-Print Network [OSTI]

L'EMISSION ELECTRIQUE DU PLATINE INCANDESCENT DANS UNE ATMOSPH√?RE D'IODE par M. S. KALANDYK influence devient nulle aux temp√©ratures de chauffage √©lev√©es. 3. Pour une faible incandescence du platine approximativement lin√©aire; aux fortes incandescences, cette variation offre un caract√®re beaucoup plus compliqu√©. 1

Paris-Sud XI, Université de

39

Introduction The Sun is a mass of incandescent gas  

E-Print Network [OSTI]

Chapter 1 Introduction The Sun is a mass of incandescent gas A gigantic nuclear furnace Building that our bodies contain atoms that, like most elements and their isotopes in the Solar System, were part of the molecular cloud from which the Solar System condensed, and were trapped in primitive

Nittler, Larry R.

40

J.-A. FLEMING. 2014 On the characteristic curves and surfaces of incandescence lamps (Courbes caractristiques des lampes incandescence) ; Phil. Mag.,  

E-Print Network [OSTI]

80 J.-A. FLEMING. 2014 On the characteristic curves and surfaces of incandescence lamps (Courbes caractéristiques des lampes à incandescence) ; Phil. Mag., 5e série, t. XIX, p. 368; I885. L'auteur étudie les résistance correspondant à la force électromotrice vo à laquelle l'incandescence commence à se produire, et r

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Permeability, Resistivity and Strength of Fouled Railroad Ballast  

E-Print Network [OSTI]

particles between the ballast particles; therefore, permeability and resistivity were also correlated. The strength properties of clean and fouled ballast were also evaluated using large direct shear box and modified direct shear box (extension in height...

Rahman, A. J.

2013-08-31T23:59:59.000Z

42

Advanced Manufacture of Reflectors  

Broader source: Energy.gov [DOE]

The Advance Manufacture of Reflectors fact sheet describes a SunShot Initiative project being conducted research team led by the University of Arizona, which is working to develop a novel method for shaping float glass. The technique developed by this research team can drastically reduce the time required for the shaping step. By enabling mass production of solar concentrating mirrors at high speed, this project should lead to improved performance and as much as a 40% reduction in manufacturing costs for reflectors made in very high volume.

43

IBECS network/ballast interface: Final report  

SciTech Connect (OSTI)

This report describes the work performed to design, develop, and demonstrate an IBECS network/ballast interface that is useful for economically dimming controllable ballasts in commercial buildings. The first section of the report provides the general background of the IBECS (Integrated Building Environmental Communications System) research and development work as well as the context for the development of the network/ballast interface. The research and development effort that went into producing the first proof-of-concept circuit and the physical prototype of that concept is detailed in the second section. In the third section of the report, we describe the lessons learned from the first demonstration of the network/ballast interface at an office at LBNL. The fourth section describes how electrical noise interference encountered with the first generation of interface led to design changes for a refined prototype that hardened the interface from electrical noise generated by the ballast. The final section of the report discusses the performance of refined prototype after we replaced the proof-of-concept prototype with the refined prototypes in the demonstration office at LBNL.

Rubinstein, Francis; Pettler, Pete

2001-11-15T23:59:59.000Z

44

Report on the Oregon Ballast Water Management Program  

E-Print Network [OSTI]

Report on the Oregon Ballast Water Management Program in 2002 #12;Report on the Oregon Ballast Water Management Program in 2002 Produced for the Oregon State Legislature by Jordan Vinograd and Mark Water Task Force December 2002 #12;Report on Oregon Ballast Water Management Program in 2002 i Executive

45

L'MISSION LECTRIQUE DU PLATINE INCANDESCENT DANS UNE ATMOSPHRE D'IODE  

E-Print Network [OSTI]

L'√?MISSION √?LECTRIQUE DU PLATINE INCANDESCENT DANS UNE ATMOSPH√?RE D'IODE par M. PIERRE JEZ],du platine incandescent ~dans une atmosph√®re d'iode en fonction : 1, de la temp√©rature ; 2, du temps; 3, de √©lectrodes, d'un grillage m√©tallique pour √©viter les influences ext√©rieures. L'incandescence des √©lectrodes s

Paris-Sud XI, Université de

46

LE RAYONNEMENT DES MANCHONS A INCANDESCENCE ; Par M. H. RUBENS1).  

E-Print Network [OSTI]

306 LE RAYONNEMENT DES MANCHONS A INCANDESCENCE ; Par M. H. RUBENS1). 1. - INTRODUCTION. Les remarquables propriétés du manchon à incandescence Auer ont dès l'origine excité au plus haut point l été entreprises par Langley pour la lampe à incandescence au pétrole avec l'aide de ses bolomètres

Paris-Sud XI, Université de

47

PROCD RAPIDE POUR LA PHOTOMTRIE DES BECS A INCANDESCENCE PAR LE GAZ (1) ;  

E-Print Network [OSTI]

469 PROC√?D√? RAPIDE POUR LA PHOTOM√?TRIE DES BECS A INCANDESCENCE PAR LE GAZ (1) ; Par P. LAURIOL. Les essais des becs √† incandescence par le gaz destin√©s √† l'√©clai- rage public comportent un tr√®s pendant une s√©rie de mesures. On emploie une lampe √† incandescence √©lectrique dont on #12;471 maintint la

Paris-Sud XI, Université de

48

MISSION CATHODIQUE A L'INTRIEUR DES LAMPES A INCANDESCENCE ; par M. L. HOULLEVIGUE (1).  

E-Print Network [OSTI]

523 √?MISSION CATHODIQUE A L'INT√?RIEUR DES LAMPES A INCANDESCENCE ; par M. L. HOULLEVIGUE (1). I. Lorsqu'on survolte fortement une lampe √† incandescence √† filament de charbon, par exemple en mettant sous incandescent. ' , Fic.. 1. Tous ces effets peuvent √™tre attribu√©s, en premi√®re analyse, aux √©lectrons √©man√©s du

Boyer, Edmond

49

Corrosion protection for silver reflectors  

DOE Patents [OSTI]

A method of protecting silver reflectors from damage caused by contact with gaseous substances which are often present in the atmosphere and a silver reflector which is so protected. The inventive method comprises at least partially coating a reflector with a metal oxide such as aluminum oxide to a thickness of 15 .ANG. or less.

Arendt, Paul N. (Los Alamos, NM); Scott, Marion L. (Los Alamos, NM)

1991-12-31T23:59:59.000Z

50

How to upgrade your incandescent light bulbs Many people are choosing replacements for their standard incandescent light bulbs to save money or energy, because they've heard of new LED  

E-Print Network [OSTI]

How to upgrade your incandescent light bulbs Many people are choosing replacements for their standard incandescent light bulbs to save money or energy, because they've heard of new LED options, or in anticipation of the phase-out of standard incandescent bulbs in the U.S. starting in 2012. If you've shopped

Bystroff, Chris

51

Operating temperatures for a convectively cooled recessed incandescent light fixture  

SciTech Connect (OSTI)

Test results are given for the operation of a recessed incandescent light fixture intended for residential use. The fixture is labeled for use in direct contact with attic thermal insulation. Temperature control of the powered fixture is provided by convective heat transfer from the ceiling side of the fixture. The fixture was operated at power levels up to two times the rated power of 75 watts and under thermal insulations up to R-40. In all operating configurations tested the fixture surface in contact with attic insulation was found to be less than 175/sup 0/C. The observed surface temperatures are judged to be safe for operation in contact with loose-fill or batt-type insulations. It was observed that the power leads inside one fixture configuration are exposed to temperatures as high as 168/sup 0/C. The electrical insulation could, therefore, have a limited life. The properties of the internal fixture wiring were not, however, studied in detail.

Yarbrough, D.W.; Toor, I.

1980-12-01T23:59:59.000Z

52

Apparatus to facilitate lengthening the life of incandescent lamps  

SciTech Connect (OSTI)

An energizing circuit is described for an incandescent bulb comprising a transformer having a primary winding connectable to an AC mains source and first and second secondary windings for producing first and second voltages. The first secondary winding is connected to an input of a first full-wave rectifier means and the second secondary winding is connected to an input of a second full-wave rectifier means, the full-wave rectifier means having outputs connected in parallel across the bulb. The first voltage is sufficient to fully illuminate the bulb and the second voltage is sufficient to maintain the bulb warm but with little or no light output, a first switch being connected between the first secondary winding and the first rectifier means whereby, when the first switch is open, the bulb is energized solely by the second voltage.

Spissinger, F.H.

1987-03-17T23:59:59.000Z

53

ON-SITE DEMONSTRATION PROCEDURE FOR SOLID-STATE FLUORESCENT BALLAST  

E-Print Network [OSTI]

the solid-state ballast supplies electrical power to theof switching power transistors that are essential for solid-solid-state ballast can transform the input electrical power

Verderber, Rudy

2013-01-01T23:59:59.000Z

54

Advanced Manufacture of Reflectors  

SciTech Connect (OSTI)

The main project objective has been to develop an advanced gravity sag method for molding large glass solar reflectors with either line or point focus, and with long or short focal length. The method involves taking standard sized squares of glass, 1.65 m x 1.65 m, and shaping them by gravity sag into precision steel molds. The method is designed for high volume manufacture when incorporated into a production line with separate pre-heating and cooling. The performance objectives for the self-supporting glass mirrors made by this project include mirror optical accuracy of 2 mrad root mean square (RMS), requiring surface slope errors <1 mrad rms, a target not met by current production of solar reflectors. Our objective also included development of new methods for rapidly shaping glass mirrors and coating them for higher reflectivity and soil resistance. Reflectivity of 95% for a glass mirror with anti-soil coating was targeted, compared to the present ~94% with no anti-soil coating. Our mirror cost objective is ~$20/m2 in 2020, a significant reduction compared to the present ~$35/m2 for solar trough mirrors produced for trough solar plants. During the first year a custom batch furnace was built to develop the method with high power radiative heating to simulate transfer of glass into a hot slumping zone in a production line. To preserve the original high polish of the float glass on both front and back surfaces, as required for a second surface mirror, the mold surface is machined to the required shape as grooves which intersect the glass at cusps, reducing the mold contact area to significantly less than 1%. The mold surface is gold-plated to reflect thermal radiation. Optical metrology of glass replicas made with the system has been carried out with a novel, custom-built test system. This test provides collimated, vertically-oriented parallel beams from a linear array of co-aligned lasers translated in a perpendicular direction across the reflector. Deviations of each reflected beam from the paraboloid focus give a direct measure of surface slope error. Key findings ē A gravity sag method for large (2.5 m2) second surface glass solar reflectors has been developed and demonstrated to a uniquely high level of accuracy. Mirror surface slope accuracy of 0.65 mrad in one dimension, 0.85 mrad in 2 dimensions (point focus) has been demonstrated by commercial partner REhnu using this process. This accuracy exceeds by a factor of two current solar reflector accuracy. Our replicas meet the Sunshot accuracy objective of 2 mrad optical, which requires better than 1 mrad rms slope error. ē Point-focus as well as line-focus mirrors have been demonstrated at 1.65 m x 1.65 m square Ė a unique capability. ē The new process using simple molds is economical. The molds for the 1.65 m square reflectors are bent and machined steel plates on a counter-weighted flotation support. To minimize thermal coupling by radiative heat transfer, the mold surface is grooved and gilded. The molds are simple to manufacture, and have minimal thermal stresses and distortion in use. Lapping and bending techniques have been developed to obtain better than 1 mrad rms surface mold accuracy. Float glass is sagged into the molds by rapid radiative heating, using a custom high power (350 kW) furnace. The method of manufacture is well suited for small as well as large volume production, and as it requires little capital investment and no high technology, it could be used anywhere in the world to make solar concentrating reflectors. ē A novel slope metrology method for full 1.65 aperture has been demonstrated, with 25 mm resolution across the face of the replicas. The method is null and therefore inherently accurate: it can easily be reproduced without high-tech equipment and does not need sophisticated calibration. We find by cross calibration with reference trough reflectors from RioGlass that our null-test laser system yields a measurement accuracy better than 0.4 mrad rms slope error. Our system is inexpensive and could have broad application for test

Angel, Roger [University of Arizona

2014-12-17T23:59:59.000Z

55

L'MISSION LECTRIQUE DU TUNGSTNE INCANDESCENT DANS UNE ATMOSPHRE D'IODE.  

E-Print Network [OSTI]

L'√?MISSION √?LECTRIQUE DU TUNGST√?NE INCANDESCENT DANS UNE ATMOSPH√?RE D'IODE. par S. KALANDYK'√©mission n√©gative du tungst√®ne; l'influence de l'iode est pr√©pond√©rante aux basses temp√©ratures d'incandescence 3. L vapeur d'iode augmente l'√©mis sion √©lectrique n√©gative du platine incandescent. L'influence de l'iode se

Paris-Sud XI, Université de

56

Computational Modeling of Ballast Tanks to Improve Understanding and Maximize Effectiveness of Management Practices and Treatment  

E-Print Network [OSTI]

Computational Modeling of Ballast Tanks to Improve Understanding and Maximize Effectiveness tanks exchange coastal ballast water with mid-ocean seawater (referred to as "ballast water exchange of high-resolution computational fluid dynamics (CFD) to model ballast tank water flow and to predict EE

57

Reflectors for SAR performance testing.  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) performance testing and estimation is facilitated by observing the system response to known target scene elements. Trihedral corner reflectors and other canonical targets play an important role because their Radar Cross Section (RCS) can be calculated analytically. However, reflector orientation and the proximity of the ground and mounting structures can significantly impact the accuracy and precision with which measurements can be made. These issues are examined in this report.

Doerry, Armin Walter

2008-01-01T23:59:59.000Z

58

Reflector system for a lighting fixture  

DOE Patents [OSTI]

Disclosed herein is a reflector system for a lighting fixture having a illumination source surrounded by an envelope. The reflector system includes a first reflector surrounding the illumination source. The reflector system also includes a second reflector which is non-contiguous with the first reflector and which surrounds the illumination source. The illumination source creates light rays which are reflected by the first and second reflectors. The first reflector directs light rays toward the center line of the fixture. However, the reflected rays despite being so reflected do not substantially intersect the envelope. The reflected light rays from the second reflector being directed so that they diverge from the center line of the fixture avoiding intersection with the semi-transparent envelope.

Siminovitch, Michael J. (829 Manor Rd., El Sobrante, CA 94803); Page, Erik (Berkeley, CA); Gould, Carl T. (Medford, OR)

2001-01-01T23:59:59.000Z

59

Reflector system for a lighting fixture  

DOE Patents [OSTI]

Disclosed herein is a reflector system for a lighting fixture having a illumination source surrounded by an envelope. The reflector system includes a first reflector surrounding the illumination source. The reflector system also includes a second reflector which is non-contiguous with the first reflector and which surrounds the illumination source. The illumination source creates light rays which are reflected by the first and second reflectors. The first reflector directs light rays toward the center line of the fixture. However, the reflected rays despite being so reflected do not substantially intersect the envelope. The reflected light rays from the second reflector being directed so that they diverge from the center line of the fixture avoiding intersection with the semi-transparent envelope.

Siminovitch, Michael J. (El Sobrante, CA); Page, Erik (Berkeley, CA); Gould, Carl T. (Medford, OR)

1998-01-01T23:59:59.000Z

60

Reflector system for a lighting fixture  

DOE Patents [OSTI]

Disclosed herein is a reflector system for a lighting fixture having a illumination source surrounded by an envelope. The reflector system includes a first reflector surrounding the illumination source. The reflector system also includes a second reflector which is non-contiguous with the first reflector and which surrounds the illumination source. The illumination source creates light rays which are reflected by the first and second reflectors. The first reflector directs light rays toward the center line of the fixture. However, the reflected rays despite being so reflected do not substantially intersect the envelope. The reflected light rays from the second reflector being directed so that they diverge from the center line of the fixture avoiding intersection with the semi-transparent envelope. 5 figs.

Siminovitch, M.J.; Page, E.; Gould, C.T.

1998-09-08T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Making the Market Right for Environmentally Sound Energy-Efficient Technologies: U.S. Buildings Sector Successes that Might Work in Developing Countries and Eastern Europe  

E-Print Network [OSTI]

than their 100-year old incandescent ancestors. However,Hz core-coil ballasts. Incandescent lighting consumes aboutthe developing world, incandescent lamps drive peak demand,

Gadgil, A.J.

2008-01-01T23:59:59.000Z

62

Zero energy-storage ballast for compact fluorescent lamps  

DOE Patents [OSTI]

A CFL ballast includes complementary-type switching devices connected in series with their gates connected together at a control node. The switching devices supply a resonant tank circuit which is tuned to a frequency near, but slightly lower than, the resonant frequency of a resonant control circuit. As a result, the tank circuit restarts oscillations immediately following each zero crossing of the bus voltage. Such rapid restarts avoid undesirable flickering while maintaining the operational advantages and high efficacy of the CFL ballast.

Schultz, William Newell (Niskayuna, NY); Thomas, Robert James (Rexford, NY)

1999-01-01T23:59:59.000Z

63

Lamp bulb with integral reflector  

DOE Patents [OSTI]

An improved electrodeless discharge lamp bulb includes an integral ceramic reflector as a portion of the bulb envelope. The bulb envelope further includes two pieces, a reflector portion or segment is cast quartz ceramic and a light transmissive portion is a clear fused silica. In one embodiment, the cast quartz ceramic segment includes heat sink fins or stubs providing an increased outside surface area to dissipate internal heat. In another embodiment, the quartz ceramic segment includes an outside surface fused to eliminate gas permeation by polishing.

Levin, Izrail (Silver Spring, MD); Shanks, Bruce (Gaithersburg, MD); Sumner, Thomas L. (Wheaton, MD)

2001-01-01T23:59:59.000Z

64

Study of high frequency & low frequency electronic ballasts for HID lamps  

E-Print Network [OSTI]

High-intensity discharge (HID) lamp electronic ballasting is receiving increasing attention in the recent years as low wattage HID lighting systems are finding indoor applications. Advantages of high frequency electronic ballast for HID lamps...

Peng, Hua

1997-01-01T23:59:59.000Z

65

Lightweight, self-ballasting photovoltaic roofing assembly  

DOE Patents [OSTI]

A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the preformed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

Dinwoodie, Thomas L. (Berkeley, CA)

1998-01-01T23:59:59.000Z

66

Lightweight, self-ballasting photovoltaic roofing assembly  

DOE Patents [OSTI]

A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the preformed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

Dinwoodie, T.L.

1998-05-05T23:59:59.000Z

67

Lightweight, self-ballasting photovoltaic roofing assembly  

DOE Patents [OSTI]

A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the pre-formed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

Dinwoodie, Thomas L.

2006-02-28T23:59:59.000Z

68

Performance of "Ultra-High" Efficient Electronic Ballast for HID Lamps  

E-Print Network [OSTI]

. Index Terms--Electronic ballast, HID lamps, resonant inverter, power loss modeling, Silicon Carbide (Si of >95% for the ballast. Diode bridge rectifier EMI filter Resonant Inverter Power Factor Correction 75423, USA Abstract--A new electronic ballast circuit for High Intensity Discharge (HID) lamps

Tolbert, Leon M.

69

851 S.W. Sixth Avenue, Suite 1100 Steve Crow 503-222-5161 Portland, Oregon 97204-1348 Executive Director 800-452-5161  

E-Print Network [OSTI]

savings come primarily from commercial and industrial equipment and residential water heaters. · Savings Ballasts Water Heaters Small Electric Motors Central Air Conditioners and Heat Pumps Clothes Dryers Clothes Incandescent Reflector Lamps Direct Heating Equipment Pool Heaters Clothes Washers, Commercial Dishwashers

70

Zero energy-storage ballast for compact fluorescent lamps  

DOE Patents [OSTI]

A CFL ballast includes complementary-type switching devices connected in series with their gates connected together at a control node. The switching devices supply a resonant tank circuit which is tuned to a frequency near, but slightly lower than, the resonant frequency of a resonant control circuit. As a result, the tank circuit restarts oscillations immediately following each zero crossing of the bus voltage. Such rapid restarts avoid undesirable flickering while maintaining the operational advantages and high efficacy of the CFL ballast. 4 figs.

Schultz, W.N.; Thomas, R.J.

1999-08-31T23:59:59.000Z

71

Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier  

SciTech Connect (OSTI)

The goal of this project is to develop an indirectly heated gasification system that converts switchgrass into hydrogen-rich gas suitable for powering fuel cells. The project includes investigations of the indirectly-heated gasifier, development of particulate removal equipment, evaluation of catalytic methods for upgrading producer gas, development of contaminant measurement and control techniques, modeling of the thermal performance of the ballasted gasifier, and estimation of the cost of hydrogen from the proposed gasification system. Specific technologies investigated include a thermally ballasted gasifier, a moving bed granular filter, and catalytic reactors for steam reforming and water-gas shift reaction. The approach to this project was to employ a pilot-scale (5 ton per day) gasifier to evaluate the thermally ballasted gasifier as a means for producing hydrogen from switchgrass. A slipstream from the gasifier was used to evaluate gas cleaning and upgrading options. Other tests were conducted with laboratory-scale equipment using simulated producer gas. The ballasted gasifier operated in conjunction with a steam reformer and two-stage water-gas shift reactor produced gas streams containing 54.5 vol-% H2. If purge gas to the feeder system could be substantially eliminated, hydrogen concentration would reach 61 vol-%, which closely approaches the theoretical maximum of 66 vol-%. Tests with a combined catalyst/sorbent system demonstrated that steam reforming and water-gas shift reaction could be substantially performed in a single reactor and achieve hydrogen concentrations exceeding 90 vol-%. Cold flow trials with a laboratory-scale moving bed granular filter achieved particle removal efficiencies exceeding 99%. Two metal-based sorbents were tested for their ability to remove H2S from biomass-derived producer gas. The ZnO sorbent, tested at 450? C, was effective in reducing H2S from 200 ppm to less than 2 ppm (>99% reduction) while tests with the MnO sorbent were inconclusive. A computer model was developed that successfully predicted the thermal performance of the ballasted gasifier. An economic comparison of an air-blown gasification plant and a ballasted gasifier plant found that operating costs for ballasted gasification plant are about 31% higher than for the air blown gasifier plant. Hydrogen from the ballasted gasification plant and air blown gasification plant are projected to be $2.43/kg and $1.85/kg, respectively. This is lower than U.S. DOEís 2010 target price of $2.90/kg and comparable to U.S. DOEís 2015 target price of $2.00/kg.

Robert C. Brown

2007-04-06T23:59:59.000Z

72

Creating markets for new products to replace incandescent lamps: The international experience  

SciTech Connect (OSTI)

Since the summer of 1995, several organizations have been in pursuit of what many consider the Holy Grail of lighting technology--a low-cost, drop-in, energy-efficient replacement for the incandescent lamp. This paper summarizes the international experience in attempting to catalyze the commercialization of a mass-market, replacement product that could have major impact on residential lighting energy consumption in US and EU homes. The technology procurement effort was originally spearheaded by US Federal Government through a loose collaboration between the Department of Defense (DoD), the Environmental Protection Agency (EPA) and the Department of Energy (DOE). The DoD agreed to serve as the anchor buyer for a low-cost, drop-in replacement product for standard-sized light bulbs that provide at least 30 percent energy savings compared to traditional incandescent lamps. In parallel to the US effort, the International Energy Agency launched a co-operative technology procurement effort by assembling large buyers' groups in Finland, the Netherlands, Sweden, and the United Kingdom to pull a similar efficient lighting product into the European market. The lukewarm response from lamp manufacturers to these two technology procurement efforts illustrates the challenges of transforming residential lighting from incandescent to efficient lighting.

Rubinstein, F.; Borg, N.; Horowitz, N.; Narel, T.; Morehouse, E.T. Jr.

1998-07-01T23:59:59.000Z

73

Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier  

E-Print Network [OSTI]

Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier DOE Hydrogen Program Contractors biomass #12;Approach Outline Gasifier Pilot Plant· Develop subsystems for the hydrogen production system and pyrolysis occur simultaneously in a single reactor · Exothermic combustion provides heat · Endothermic

74

Energy savings with solid-state ballasted high-pressure sodium lamps  

SciTech Connect (OSTI)

The performance of three types of solid-state ballasts used to operate high-pressure sodium lamps is discussed. Each type of solid-state ballast has been designed to operate an HPS lamp of a different wattage (150, 200, and 400 watts). The performance of these ballasts compared to standard core-coil ballasts operating the same HPS lamps shows that system efficiency improves as much as 17%. The solid-state ballasted HPS system also demonstrates excellent regulation with respect to input voltage and output power. These new ballasts can dim the HPS lamps and reduce flicker from more than 60% to less than 3%. Refitting street lighting with these new HPS systims provides an attractive return on initial capital investment.

Verderber, R.R.; Morse, O.

1981-04-01T23:59:59.000Z

75

Energy Efficiency Standards and Labels in North America: Opportunities for Harmonization  

E-Print Network [OSTI]

The US has a standard for incandescent non-reflector lamps.ve ,S m L mc ,L ve ,S m Incandescent Lamps and Luminaires SFluorescent lamps Incandescent reflector lamps Incandescent

Wiel, Stephen

2008-01-01T23:59:59.000Z

76

The provenance of the stone ballast from the Molasses Reef Wreck  

E-Print Network [OSTI]

would limit the sources for ballast to the Old World and the Caribbean Basin of the New World. 5econd, the bailast was sampled systematically in the field which decreased the level of bias in the data collection. Third, the overall diversity... ballast Iithologfes with source locations, particularly when metamorphic and igneous rocks are under study. Paleontology is instrumental for provenance correlations of sedimentary lithologies. Fossils found in ballast stones can give geological dates...

Lamb, William Reginald

1988-01-01T23:59:59.000Z

77

Distributed Bragg Reflectors With Reduced Optical Absorption  

DOE Patents [OSTI]

A new class of distributed Bragg reflectors has been developed. These distributed Bragg reflectors comprise interlayers positioned between sets of high-index and low-index quarter-wave plates. The presence of these interlayers is to reduce photon absorption resulting from spatially indirect photon-assisted electronic transitions between the high-index and low-index quarter wave plates. The distributed Bragg reflectors have applications for use in vertical-cavity surface-emitting lasers for use at 1.55 .mu.m and at other wavelengths of interest.

Klem, John F. (Albuquerque, NM)

2005-08-16T23:59:59.000Z

78

Analysis and design of an electronic ballast for fluorescent tube  

E-Print Network [OSTI]

with conventional ballasts. The proposed strategy is experimentally implemented in the power electronics laboratory. Further, a front end passive power factor correction and harmonic reduction approach is suggested and fully analyzed. Power factor correction... and harmonic reduction is necessary to further improve the overall efficiency and also to comply with the new harmonic standards IEC-555, which limits the harmonics generated on a single phase ac source. To my parents ACKNOWLEDGMENTS I wish to express my...

Kuchimanchi, Krishna V.

1992-01-01T23:59:59.000Z

79

EA-1881: Energy Conservation Program: Energy Conservation Standards for Fluorescent Lamp Ballasts  

Broader source: Energy.gov [DOE]

This EA evaluates the environmental impacts of a proposal to amend energy conservation standards for various consumer products and certain commercial and industrial equipment, including fluorescent lamp ballasts.

80

HIGH INTENSITY DISCHARGE (HID) SOLID STATE BALLAST PROGRAM PHASE I FINAL REPORT  

E-Print Network [OSTI]

A trapazoid for each type and lamp wattage is published bylamp wattage for the core-coil ballast was measured with a dynamometer type

Ailing, W.R.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Solar central receiver heliostat reflector assembly  

DOE Patents [OSTI]

A heliostat reflector assembly for a solar central receiver system comprises a light-weight, readily assemblable frame which supports a sheet of stretchable reflective material and includes mechanism for selectively applying tension to and positioning the sheet to stretch it to optical flatness. The frame is mounted on and supported by a pipe pedestal assembly that, in turn, is installed in the ground. The frame is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e. central receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The frame may include a built-in system for testing for optical flatness of the reflector. The preferable geometric configuration of the reflector is octagonal; however, it may be other shapes, such as hexagonal, pentagonal or square. Several different embodiments of means for tensioning and positioning the reflector to achieve optical flatness are disclosed. The reflector assembly is based on the stretch frame concept which provides an extremely light-weight, simple, low-cost reflector assembly that may be driven for positioning and tracking by a light-weight, inexpensive drive system.

Horton, Richard H. (Schenectady, NY); Zdeb, John J. (Clifton Park, NY)

1980-01-01T23:59:59.000Z

82

A theoretical study of the incandescent filament lamp performance under voltage flicker  

SciTech Connect (OSTI)

Incandescent filament lamp flicker, produced by voltage fluctuation, is a power quality problem that caused engineering concern since the onset of electrical illumination technology. The flicker phenomenon was analyzed and explained in early studies. Standards dealing with acceptable flicker levels are well known, nevertheless, today the discussion about flicker continues to be a top priority topic due to the fact that steady-state and transient voltage waveform distortion is a growing problem in low and medium voltage systems. In many situations voltage flicker is caused by subharmonics and interharmonics of voltage. Cycloconverters, welders and arc furnaces, eccentrically operating tools and integral cycle controlled power equipment are notorious for producing voltage flicker. The goal of this paper is to provide solid mathematical basis for the analytical modeling of incandescent filament lamp flicker when the voltage is nonsinusoidal. A mathematical model that enables the evaluation of the luminous flux modulation caused by noninteger harmonics (subharmonics and interharmonics) is presented. Three situations are detailed: square-wave voltage modulation, sinusoidal modulation and the case of noninteger harmonics with nearly contiguous frequencies.

Peretto, L. [Univ. of Bologna (Italy)] [Univ. of Bologna (Italy); Emanuel, A.E. [Worcester Polytechnic Inst., MA (United States)] [Worcester Polytechnic Inst., MA (United States)

1997-01-01T23:59:59.000Z

83

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 Through 2011  

E-Print Network [OSTI]

Fluorescent Lamps and Incandescent Reflector Lamps EPACTBallasts and Fixtures General Service Incandescent Lamps,Intermediate Base Incandescent Lamps and Candelabra Base

Meyers, Stephen

2013-01-01T23:59:59.000Z

84

Max Tech Appliance Design: Potential for Maximizing U.S. Energy Savings through Standards  

E-Print Network [OSTI]

and lighting dominantly incandescent. LED) replace Althoughare similar, LED incandescent efficacies are expected toUse (TWh) a Lighting (incandescent, including reflector

Garbesi, Karina

2011-01-01T23:59:59.000Z

85

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 through 2012  

E-Print Network [OSTI]

Fluorescent Lamps and Incandescent Reflector Lamps EPACTBallasts and Fixtures General Service Incandescent Lamps,Intermediate Base Incandescent Lamps and Candelabra Base

Meyers, Stephen

2013-01-01T23:59:59.000Z

86

Max Tech and Beyond: Fluorescent Lamps  

E-Print Network [OSTI]

Fluorescent Lamps and Incandescent Reflector Lamps; Finalmany end- use applications. Incandescent Outdoor Stationaryof color compared with the incandescent reference source is

Scholand, Michael

2012-01-01T23:59:59.000Z

87

IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 23, NO. 1, JANUARY 2008 11 Electronic Ballast Control IC With Digital Phase  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 23, NO. 1, JANUARY 2008 11 Electronic Ballast Control ballast controller fabricated in a 0.8 CMOS process used in a 400 W, 150 kHz HID electronic ballast. Index Terms--Current regulation, digital control, electronic bal- last, integrated circuit, over voltage

88

Potential Environmental Impacts from the Metals in Incandescent, Compact Fluorescent Lamp (CFL), and Light-Emitting Diode (LED)  

E-Print Network [OSTI]

the lighting products are to be categorized as hazardous waste under existing U.S. federal and California state in lighting products without compromising their performance and useful lifespan. INTRODUCTION The U.S. Energy to increase energy efficiency for general lighting. Therefore, consumers are replacing incandescent light

Short, Daniel

89

Linings with optimum heat-emission surfaces for cars receiving and transporting incandescent coke  

SciTech Connect (OSTI)

The least reliable components of the cars which receive and transport incandescent coke are the lining plates. This applies to both the quenching cars used for wet quenching and the hot-coke cars used in the dry cooling process. Technical advances have been described whereby the life of car linings is prolonged by increasing heat emission from the lining plate surfaces. As the heat emission level is enhanced the mean plate temperature is lowered and the lining life thereby prolonged; moreover, the between-servicings period is prolonged. This involves providing fins on the non-working (outer) plate surfaces. The problem of optimizing the size and shape of the fins with reference to heat emission remains unsolved: the requirement is maximum heat emission from plates of a given weight, or conversely minimum plate weight for a given heat emission level. 6 refs., 3 figs.

Kotlyar, B.D.; Pleshkov, P.I.; Gadyatskii, V.G. [and others

1992-12-31T23:59:59.000Z

90

Nuclear Transmutations in HFIR's Beryllium Reflector and Their Impact on Reactor Operation and Reflector Disposal  

SciTech Connect (OSTI)

The High Flux Isotope Reactor located at the Oak Ridge National Laboratory utilizes a large cylindrical beryllium reflector that is subdivided into three concentric regions and encompasses the compact reactor core. Nuclear transmutations caused by neutron activation occur in the beryllium reflector regions, which leads to unwanted neutron absorbing and radiation emitting isotopes. During the past year, two topics related to the HFIR beryllium reflector were reviewed. The first topic included studying the neutron poison (helium-3 and lithium-6) buildup in the reflector regions and its affect on beginning-of-cycle reactivity. A new methodology was developed to predict the reactivity impact and estimated symmetrical critical control element positions as a function of outage time between cycles due to helium-3 buildup and was shown to be in better agreement with actual symmetrical critical control element position data than the current methodology. The second topic included studying the composition of the beryllium reflector regions at discharge as well as during decay to assess the viability of transporting, storing, and ultimately disposing the reflector regions currently stored in the spent fuel pool. The post-irradiation curie inventories were used to determine whether the reflector regions are discharged as transuranic waste or become transuranic waste during the decay period for disposal purposes and to determine the nuclear hazard category, which may affect the controls invoked for transportation and temporary storage. Two of the reflector regions were determined to be transuranic waste at discharge and the other region was determined to become transuranic waste in less than 2 years after being discharged due to the initial uranium content (0.0044 weight percent uranium). It was also concluded that all three of the reflector regions could be classified as nuclear hazard category 3 (potential for localized consequences only).

Chandler, David [ORNL; Maldonado, G Ivan [ORNL; Primm, Trent [ORNL; Proctor, Larry Duane [ORNL

2012-01-01T23:59:59.000Z

91

Dual annular rotating "windowed" nuclear reflector reactor control system  

DOE Patents [OSTI]

A nuclear reactor control system is provided in a nuclear reactor having a core operating in the fast neutron energy spectrum where criticality control is achieved by neutron leakage. The control system includes dual annular, rotatable reflector rings. There are two reflector rings: an inner reflector ring and an outer reflector ring. The reflectors are concentrically assembled, surround the reactor core, and each reflector ring includes a plurality of openings. The openings in each ring are capable of being aligned or non-aligned with each other. Independent driving means for each of the annular reflector rings is provided so that reactor criticality can be initiated and controlled by rotation of either reflector ring such that the extent of alignment of the openings in each ring controls the reflection of neutrons from the core.

Jacox, Michael G. (Idaho Falls, ID); Drexler, Robert L. (Idaho Falls, ID); Hunt, Robert N. M. (Idaho Falls, ID); Lake, James A. (Idaho Falls, ID)

1994-01-01T23:59:59.000Z

92

On-site demonstration procedure for solid-state fluorescent ballast  

SciTech Connect (OSTI)

The report was presented to plant engineers and managers who were involved in an on-site demonstration of EETech solid-state ballasts for two 40-watt T12 fluorescent lamps. The report includes a brief review of the operating principles of solid-state fluorescent ballasts and the status of development achieved during the LBL program. The remainder of the test describes the techniques of managing and instrumenting a test area for assessing the performance of solid-state fluorescent ballasts at an occupied site.

Verderber, R.; Morse, O.

1980-09-01T23:59:59.000Z

93

Business Case for Energy Efficiency in Support of Climate Change Mitigation, Economic and Societal Benefits in China  

E-Print Network [OSTI]

Commercial and Industrial End Uses Incandescent Lamps Refrigerators Residential AC (Including Heat Pumps) Washing Machines Fluorescent Ballasts Electric Water Heaters

McNeil, Michael A.

2012-01-01T23:59:59.000Z

94

Bottom-Up Energy Analysis System - Methodology and Results  

E-Print Network [OSTI]

Documents U.S. Rulemaking Documents TSL 4 PHP IncandescentLamps Incandescent Lamps Fluorescent Lamp Ballasts kWh/yrand T5 fluorescent tubes, incandescent lamps, CFLs, Halogen

McNeil, Michael A.

2013-01-01T23:59:59.000Z

95

STATE OF CALIFORNIA CERTIFICATE OF COMPLIANCE AND FIELD INSPECTION CHECKLIST  

E-Print Network [OSTI]

Watts: 1. Type of luminaire (i.e.: post top, wall pack, surface, shoe box); for non-incandescent luminaires, indicate nominal lamp wattage and lamp type ( i.e.: fluorescent, incandescent, HID); ballast type. For incandescent luminaires, the lum

96

Energy Savings and NOx Emissions Reduction Potential from the 2012 Federal Legislation to Phase Out Incandescent Lamps in Texas  

E-Print Network [OSTI]

Lamps in Texas Description Value Reference Total Housing Units in Texas in 2013: 10,204,056 Real Estate Center, Texas A&M University3, U.S. Census Bureau4 5 Average Lighting Electricity Usage per House: 1,946 kWh/yr NREL Building America Program6... Savings in Texas: 10,424,973 MWh/yr OSD CFL Savings in Texas: 28,562 MWh/day By 2013, it is estimated that total savings of 10,424,973 MWh/yr would be achieved from replacing incandescent lamps with compact fluorescent lamps (CFL) in residential...

Liu, Zi; Baltazar, Juan Carlos; Haberl, Jeff; Soman, Rohit

97

Optical Reflectance Measurements for Commonly Used Reflectors  

SciTech Connect (OSTI)

When simulating light collection in scintillators, modeling the angular distribution of optical light reflectance from surfaces is very important. Since light reflectance is poorly understood, either purely specular or purely diffuse reflectance is generally assumed. In this paper we measure the optical reflectance distribution for eleven commonly used reflectors. A 440 nm, output power stabilized, un-polarized laser is shone onto a reflector at a fixed angle of incidence. The reflected light's angular distribution is measured by an array of silicon photodiodes. The photodiodes are movable to cover 2 pi of solid angle. The light-induced current is, through a multiplexer, read out with a digital multimeter. A LabVIEW program controls the motion of the laser and the photodiode array, the multiplexer, and the data collection. The laser can be positioned at any angle with a position accuracy of 10 arc minutes. Each photodiode subtends 6.3o, and the photodiode array can be positioned at any angle with up to 10 arc minute angular resolution. The dynamic range for the current measurements is 105:1. The measured light reflectance distribution was measured to be specular for several ESR films as well as for aluminum foil, mostly diffuse for polytetrafluoroethylene (PTFE) tape and titanium dioxide paint, and neither specular nor diffuse for Lumirror(R), Melinex(R) and Tyvek(R). Instead, a more complicated light distribution was measured for these three materials.

Janecek, Petr Martin; Moses, William

2008-06-11T23:59:59.000Z

98

Convection venting lensed reflector-type compact fluorescent lamp system  

DOE Patents [OSTI]

Disclosed herein is a fluorescent lamp housing assembly capable of providing convection cooling to the lamp and the ballast. The lens of the present invention includes two distinct portions, a central portion and an apertured portion. The housing assembly further includes apertures so that air mass is able to freely move up through the assembly and out ventilation apertures. 12 figs.

Pelton, B.A.; Siminovitch, M.

1997-07-29T23:59:59.000Z

99

Comparison of 60-Hz electric fields and incandescent light as aversive stimuli controlling the behavior of rats  

SciTech Connect (OSTI)

Rats were exposed to two procedures which enabled them to press a lever to turn off a 90 or 100 kV/m 60-Hz electric field or, later in the study, illumination from an incandescent lamp. Under one procedure, a response turned off the stimulus for a fixed duration, after which the stimulus was turned on again. A response during the off-period restarted the fixed duration. None of the rats turned the field off reliably. Next, under an alternative procedure, pressing one lever turned the field off; pressing the other lever turned it back on; responding under those conditions differed little from that seen at 0 kV/m. Under both procedures, when illumination from an incandescent lamp served as the stimulus, each rat did turn the stimulus off, and performances varied with stimulus intensity. The results show that a 100 kV/m 60-Hz electric field is not sufficient to function as an aversive stimulus under two procedures where illumination from a lamp does function as an aversive stimulus.

Stern, S.; Laties, V.G.

1989-01-01T23:59:59.000Z

100

Impact of HFIR LEU Conversion on Beryllium Reflector Degradation Factors  

SciTech Connect (OSTI)

An assessment of the impact of low enriched uranium (LEU) conversion on the factors that may cause the degradation of the beryllium reflector is performed for the High Flux Isotope Reactor (HFIR). The computational methods, models, and tools, comparisons with previous work, along with the results obtained are documented and discussed in this report. The report documents the results for the gas and neutronic poison production, and the heating in the beryllium reflector for both the highly enriched uranium (HEU) and LEU HFIR configurations, and discusses the impact that the conversion to LEU may have on these quantities. A time-averaging procedure was developed to calculate the isotopic (gas and poisons) production in reflector. The sensitivity of this approach to different approximations is gauged and documented. The results show that the gas is produced in the beryllium reflector at a total rate of 0.304 g/cycle for the HEU configuration; this rate increases by ~12% for the LEU case. The total tritium production rate in reflector is 0.098 g/cycle for the HEU core and approximately 11% higher for the LEU core. A significant increase (up to ~25%) in the neutronic poisons production in the reflector during the operation cycles is observed for the LEU core, compared to the HEU case, for regions close to the core s horizontal midplane. The poisoning level of the reflector may increase by more than two orders of magnitude during long periods of downtime. The heating rate in the reflector is estimated to be approximately 20% lower for the LEU core than for the HEU core. The decrease is due to a significantly lower contribution of the heating produced by the gamma radiation for the LEU core. Both the isotopic (gas and neutronic poisons) production and the heating rates are spatially non-uniform throughout the beryllium reflector volume. The maximum values typically occur in the removable reflector and close to the midplane.

Ilas, Dan [ORNL

2013-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Method of making reflecting film reflector  

DOE Patents [OSTI]

A reflector of the reflecting film type is disclosed and which may be used in a heliostatic system for concentrating solar energy and comprising a reflecting film bonded to an appropriate rigid substrate in such a way that specularity of a very high order is achieved. A method of bonding the reflecting film to the substrate is also disclosed and comprises the steps of initially adhering the film to a smooth, clean flat rigid surface with a non-bonding liquid between the rigid surface and film, and then bonding the substrate and film. The non-bonding liquid has a molecular adhesion greater than any stresses due to handling or curing of the bonding agent which is applied between the film and the opposing surface of the rigid substrate.

Cottingham, James G. (Center Moriches, NY)

1980-01-01T23:59:59.000Z

102

Optical Durability of Candidate Solar Reflectors for Concentrating Solar Power  

SciTech Connect (OSTI)

Concentrating solar power (CSP) technologies use large mirrors to collect sunlight to convert thermal energy to electricity. The viability of CSP systems requires the development of advanced reflector materials that are low in cost and maintain high specular reflectance for extended lifetimes under severe outdoor environments. The long-standing goals for a solar reflector are specular reflectance above 90% into a 4 mrad half-cone angle for at least 10 years outdoors with a cost of less than $13.8/m{sup 2} (the 1992 $10.8/m{sup 2} goal corrected for inflation to 2002 dollars) when manufactured in large volumes. Durability testing of a variety of candidate solar reflector materials at outdoor test sites and in laboratory accelerated weathering chambers is the main activity within the Advanced Materials task of the CSP Program at the National Renewable Energy Laboratory (NREL) in Golden, Colorado. Test results to date for several candidate solar reflector materials will be presented. These include the optical durability of thin glass, thick glass, aluminized reflectors, front-surface mirrors, and silvered polymer mirrors. The development, performance, and durability of these materials will be discussed. Based on accelerated exposure testing the glass, silvered polymer, and front-surface mirrors may meet the 10 year lifetime goals, but at this time because of significant process changes none of the commercially available solar reflectors and advanced solar reflectors have demonstrated the 10 year or more aggressive 20 year lifetime goal.

Kennedy, C. E.; Terwilliger, K.

2007-01-01T23:59:59.000Z

103

Ballasts: Handling, Storage and Procedure: 8.40 Created: 07/01/2009  

E-Print Network [OSTI]

of industrial compounds produced by chlorination of biphenyl, noted primarily as an environmental pollutant applies to all Contractors, Project Managers, Facilities Operations and Environmental Health & Safety (EH-lamping activities and construction/renovation activities at Columbia University. Ballasts manufactured before 1978

Jia, Songtao

104

Space Reflector Materials for Prometheus Application  

SciTech Connect (OSTI)

The two materials studied in depth which appear to have the most promise in a Prometheus reflector application are beryllium (Be) and beryllium oxide (BeO). Three additional materials, magnesium oxide (MgO), alumina (Al{sub 2}O{sub 3}), and magnesium aluminate spinel (MgAl{sub 2}O{sub 4}) were also recently identified to be of potential interest, and may have promise in a Prometheus application as well, but are expected to be somewhat higher mass than either a Be or BeO based reflector. Literature review and analysis indicates that material properties for Be are largely known, but there are gaps in the properties of Be0 relative to the operating conditions for a Prometheus application. A detailed preconceptual design information document was issued providing material properties for both materials (Reference (a)). Beryllium oxide specimens were planned to be irradiated in the JOY0 Japanese test reactor to partially fill the material property gaps, but more testing in the High Flux Isotope Reactor (HFIR) test reactor at Oak Ridge National Laboratory (ORNL) was expected to be needed. A key issue identified for BeO was obtaining material for irradiation testing with an average grain size of {approx}5 micrometers, reminiscent of material for which prior irradiation test results were promising. Current commercially available material has an average grain size of {approx}10 micrometers. The literature indicated that improved irradiation performance could be expected (e.g., reduced irradiation-induced swelling) with the finer grain size material. Confirmation of these results would allow the use of historic irradiated materials test results from the literature, reducing the extent of required testing and therefore the cost of using this material. Environmental, safety and health (ES&H) concerns associated with manufacturing are significant but manageable for Be and BeO. Although particulate-generating operations (e.g., machining, grinding, etc.) involving Be-bearing materials require significant controls, handling of clean, finished products requires only modest controls. Neither material was initially considered to be viable as a structural material, however, based on improved understanding of its unirradiated properties, Be should be evaluated due to having potentially acceptable structural properties in the unirradiated condition, i. e., during launch, when loads might be most limiting. All three of the alternative materials are non-hazardous, and thus do not engender the ES&H concerns associated with use of Be or BeO. Aluminum oxide is a widely available ceramic material with well characterized physical properties and well developed processing practices. Although the densest (3.97 g/cm{sup 3} versus Be: 1.85, BeO: 3.01, MgO: 3.58, and MgAl{sub 2}O{sub 4}: 3.60, all theoretical density), and therefore the heaviest, of all the materials considered for this application, its ease of fabrication, mechanical properties, availability and neutronic characteristics warrant its evaluation. Similarly, MgO is widely used in the refractory materials industry and has a large established manufacturing base while being lighter than Al{sub 2}O{sub 3}. Most of the commercially available MgO products incorporate additives or a second phase to avoid the formation of Mg(OH){sub 2} due to spontaneous reaction with ambient humidity. The hygroscopicity of MgO makes it a more difficult material to work with than Al{sub 2}O{sub 3} or MgAl{sub 2}O{sub 4}. Magnesium aluminate spinel, although not as widely available as either Al{sub 2}O{sub 3} or MgO, has the advantage of a density almost as low as MgO without being hygroscopic, and shares comparable neutronic performance characteristics in the reflector application.

J. Nash; V. Munne; LL Stimely

2006-01-31T23:59:59.000Z

105

Theoretical and experimental investigations into the particular features of the process of converting coal gas hydrocarbons on incandescent coke  

SciTech Connect (OSTI)

The prospects of the use of reducing gases in ferrous metallurgy and the possibilities for using them as a basis for coke production have been presented by the authors of the present article in the past. In the present report, the authors present certain results of theoretical and experimental investigations into the process of converting coal gas hydrocarbons on incandescent coke. The modification of the present-day method of thermodynamically calculating stable compositions of coking products, which was developed by the authors, has made it possible to apply it to specific chemical systems and process conditions not met with before, such as the conversion of hydrocarbons in mixtures of actual industrial gases (coal gas and blast furnace gas) in the presence of carbon and considerable amounts of hydrogen.

Zubilin, I.G.; Umanskii, V.E.

1984-01-01T23:59:59.000Z

106

Neutronic evaluation of GCFR core diluents and reflectors  

E-Print Network [OSTI]

Materials are evaluated for use as in-core diluents and as peripheral reflectors for Gas-Cooled Fast Reactor (GFR) service, using coupled Monte Carlo (MCNP) and isotopics (ORIGEN) codes. The principal performance indices ...

Yu, Kun, 1974-

2003-01-01T23:59:59.000Z

107

Solar cell comprising a plasmonic back reflector and method therefor  

DOE Patents [OSTI]

A method for forming a solar cell having a plasmonic back reflector is disclosed. The method includes the formation of a nanoimprinted surface on which a metal electrode is conformally disposed. The surface structure of the nanoimprinted surface gives rise to a two-dimensional pattern of nanometer-scale features in the metal electrode enabling these features to collectively form the plasmonic back reflector.

Ding, I-Kang; Zhu, Jia; Cui, Yi; McGehee, Michael David

2014-11-25T23:59:59.000Z

108

Ecosystem under Pressure: Examining the Phytoplankton Community in the High Ballast Water Discharge Environment of Galveston Bay, Texas (USA)  

E-Print Network [OSTI]

water from port to port (Anderson, 2009). The combination of larger ballast tanks, ever increasing international commerce and shorter transit times, has synergistically contributed to the increasing rate of successful invasions in coastal bays... and Gymnodinium catenatum (found in POH June 2007), native to Japan, was introduced to Australia (Hallegraeff and Bolch, 1991). Viable cysts of the toxic species of Alexandrium were identified and cultured from multiple ballast tanks of vessels traveling from...

Steichen, Jamie L

2013-01-15T23:59:59.000Z

109

2015-01-28 Issuance: Test Procedure for Fluorescent Lamp Ballasts; Final Rule Correction  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register final rule correction regarding test procedures for fluorescent lamp ballasts, as issued by the Deputy Assistant Secretary for Energy Efficiency on January 28, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

110

Application of the OPTEX method for computing reflector parameters  

SciTech Connect (OSTI)

We are investigating the OPTEX reflector model for obtaining few-group reflector parameters consistent with a reference power distribution in the core. In our study, the reference power distribution is obtained using a 142,872-region calculation defined over a 2D eighth-of-core pressurized water reactor and performed with the method of characteristics. The OPTEX method is based on generalized perturbation theory and uses an optimization algorithm known as parametric linear complementarity pivoting. The proposed model leads to few-group diffusion coefficients or P1-weighted macroscopic total cross sections that can be used to represent the reflector in full-core calculations. These few-group parameters can be spatially heterogeneous in order to correctly represent steel baffles present in modern pressurized water reactors. The optimal reflector parameters are compared to those obtained with a flux-volume weighting of the reflector cross sections recovered from the reference calculation. Important improvements in full-core power distribution are observed when the optimal parameters are used. (authors)

Hebert, A. [Ecole Polytechnique de Montreal, C.P. 6079 suce. Centre-Ville, Montreal QC. H3C 3A7 (Canada); Leroyer, H. [EDF - R and D, SINETICS, 1 Avenue du General de Gaulle, 92141 Clamart (France)

2013-07-01T23:59:59.000Z

111

A powerful reflector in relativistic backward wave oscillator  

SciTech Connect (OSTI)

An improved TM{sub 021} resonant reflector is put forward. Similarly with most of the slow wave structures used in relativistic backward wave oscillator, the section plane of the proposed reflector is designed to be trapezoidal. Compared with the rectangular TM{sub 021} resonant reflector, such a structure can depress RF breakdown more effectively by weakening the localized field convergence and realizing good electrostatic insulation. As shown in the high power microwave (HPM) generation experiments, with almost the same output power obtained by the previous structure, the improved structure can increase the pulse width from 25?ns to over 27?ns and no obvious surface damage is observed even if the generated HPM pulses exceed 1000 shots.

Cao, Yibing, E-mail: caoyibing@nint.ac.cn; Sun, Jun; Teng, Yan; Zhang, Yuchuan; Zhang, Lijun; Shi, Yanchao; Ye, Hu; Chen, Changhua [Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024 (China)

2014-09-15T23:59:59.000Z

112

AlP/GaP distributed Bragg reflectors  

SciTech Connect (OSTI)

Distributed Bragg reflectors with high reflectivity bands centered at wavelengths from 530 to 690 nm (green to red) based on AlP/GaP quarter-wave stacks are prepared on (001)GaP using gas-source molecular-beam epitaxy. Additionally, the complex refractive index of AlP is measured using spectroscopic ellipsometry within the range of 330-850 nm in order to facilitate an accurate reflector design. Structures consisting of 15 quarter-wave stacks reach a peak reflectance between 95% and 98%, depending on the spectral position of the maximum.

Emberger, Valentin; Hatami, Fariba; Ted Masselink, W. [Department of Physics, Humboldt-Universitaet zu Berlin, Newtonstrasse 15, D-12489 Berlin (Germany); Peters, Sven [Sentech Instruments GmbH, Schwarzschildstr. 2, 12489 Berlin (Germany)

2013-07-15T23:59:59.000Z

113

Dual annular rotating [open quotes]windowed[close quotes] nuclear reflector reactor control system  

DOE Patents [OSTI]

A nuclear reactor control system is provided in a nuclear reactor having a core operating in the fast neutron energy spectrum where criticality control is achieved by neutron leakage. The control system includes dual annular, rotatable reflector rings. There are two reflector rings: an inner reflector ring and an outer reflector ring. The reflectors are concentrically assembled, surround the reactor core, and each reflector ring includes a plurality of openings. The openings in each ring are capable of being aligned or non-aligned with each other. Independent driving means for each of the annular reflector rings is provided so that reactor criticality can be initiated and controlled by rotation of either reflector ring such that the extent of alignment of the openings in each ring controls the reflection of neutrons from the core. 4 figures.

Jacox, M.G.; Drexler, R.L.; Hunt, R.N.M.; Lake, J.A.

1994-03-29T23:59:59.000Z

114

Project Profile: Low-Cost Self-Cleaning Reflector Coatings for...  

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

Cost Self-Cleaning Reflector Coatings for CSP Collectors Project Profile: Low-Cost Self-Cleaning Reflector Coatings for CSP Collectors Oak Ridge National Laboratory logo The Oak...

115

IEEE Power Electronics Specialists Conference, PESC-97, 39-45, St. Louis, 1997. A MHz Electronic Ballast for Automotive-Type HID Lamps  

E-Print Network [OSTI]

Ballast for Automotive-Type HID Lamps Michael Gulko and Sam Ben-Yaakov* Power Electronics Laboratory-Resonance Inverter (CS-PPRI) topology [2] as a ballast for low wattage HID lamps designated as automotive headlights lamp option to replace the conventional 'halogen' type headlights. Unfortunately, application of HID

116

Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier Robert C. Brown, Glenn Norton, Andy Suby, Jerod Smeenk, Keith Cummer, and Josh Nunez  

E-Print Network [OSTI]

Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier Robert C. Brown, Glenn Norton, Andy fuel cells. We have developed a thermally ballasted gasifier that uses a single reactor for both compared to conventional gasifiers. The carbon monoxide, along with steam used to fluidize the reactor, can

117

Evaluation of Ships' Ballast Water as a Vector for Transfer of Pathogenic Bacteria to Marine Protected Areas in the Gulf of Mexico  

E-Print Network [OSTI]

and unloading cargo as well as during transit. As a ship unloads itís cargo at a port, it takes on ballast water and then when it loads cargo at the next port, it discharges the ballast water, thus transferring water from port to port. Aquatic organisms...

Morris, Theresa L

2013-05-10T23:59:59.000Z

118

AIAA 2004-1574 New Deployable Reflector Concept  

E-Print Network [OSTI]

an offset parabolic cylinder with a linear feed array. The required reflector shape is an offset parabolic that comprises curved surfaces formed from thin sheets of carbon-fiber-reinforced-plastic (CFRP) connected-band Synthetic Aperture Radar (SAR) instrument using an offset parabolic cylinder with a linear feed array

Soykasap, Omer

119

Birefringent omnidirectional reflector Kate Kaminska and Kevin Robbie  

E-Print Network [OSTI]

silica Ref. 4 multilayer structures and in the near infrared with amorphous silicon silica Ref. 5 and Ga, and expensive. We demonstrate an omnidirectional reflector operat- ing at near-infrared wavelengths, made reflection of radiation at 1.1 m for all incidence angles and polarizations. The thin-film device

Robbie, Kevin

120

Long-Life Self-Renewing Solar Reflector Stack  

DOE Patents [OSTI]

A long-life solar reflector includes a solar collector substrate and a base layer bonded to a solar collector substrate. The first layer includes a first reflective layer and a first acrylic or transparent polymer layer covering the first reflective layer to prevent exposure of the first reflective layer. The reflector also includes at least one upper layer removably bonded to the first acrylic or transparent polymer layer of the base layer. The upper layer includes a second reflective layer and a second acrylic or transparent polymer layer covering the second reflective layer to prevent exposure of the second reflective layer. The upper layer may be removed from the base reflective layer to expose the base layer, thereby lengthening the useful life of the solar reflector. A method of manufacturing a solar reflector includes the steps of bonding a base layer to a solar collector substrate, wherein the base reflective layer includes a first reflective layer and a first transparent polymer or acrylic layer covering the first reflective layer; and removably bonding a first upper layer to the first transparent polymer or acrylic layer of the base layer. The first upper layer includes a second reflective layer and a second transparent polymer or acrylic layer covering the second reflective layer to prevent exposure of the second reflective layer.

Butler, Barry Lynn (Solana Beach, CA)

1997-07-08T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

STIFFENED SPRINGBACK REFLECTORS L.T. Tan and S. Pellegrino  

E-Print Network [OSTI]

STIFFENED SPRINGBACK REFLECTORS L.T. Tan and S. Pellegrino Department of Engineering, University plastic (CFRP). The whole structure is made as a single piece, without any expensive and potentially the reliability of the system. This paper proposes a modification of the original concept, based on the idea

Pellegrino, Sergio

122

Step-Stress Accelerated Degradation Testing for Solar Reflectors: Preprint  

SciTech Connect (OSTI)

To meet the challenge to reduce the cost of electricity generated with concentrating solar power (CSP) new low-cost reflector materials are being developed including metalized polymer reflectors and must be tested and validated against appropriate failure mechanisms. We explore the application of testing methods and statistical inference techniques for quantifying estimates and improving lifetimes of concentrating solar power (CSP) reflectors associated with failure mechanisms initiated by exposure to the ultraviolet (UV) part of the solar spectrum. In general, a suite of durability and reliability tests are available for testing a variety of failure mechanisms where the results of a set are required to understand overall lifetime of a CSP reflector. We will focus on the use of the Ultra-Accelerated Weathering System (UAWS) as a testing device for assessing various degradation patterns attributable to accelerated UV exposure. Depending on number of samples, test conditions, degradation and failure patterns, test results may be used to derive insight into failure mechanisms, associated physical parameters, lifetimes and uncertainties. In the most complicated case warranting advanced planning and statistical inference, step-stress accelerated degradation (SSADT) methods may be applied.

Jones, W.; Elmore, R.; Lee, J.; Kennedy, C.

2011-09-01T23:59:59.000Z

123

Optimized Magnetic Components Improve Efficiency of Compact Fluorescent Lamps  

E-Print Network [OSTI]

xtures (designed for incandescent bulbs) has allowed residential and small commercial electric customers of incandescent lamps and last 10 times longer [1]. High-frequency electronic ballasts are used to power CFLs

124

Efficacy of open-ocean ballast water exchange as a means of preventing invertebrate invasions between freshwater ports  

E-Print Network [OSTI]

between freshwater ports Derek K. Gray Great Lakes Institute for Environmental Research, University Lakes to European ports. Each vessel had paired ballast tanks, one of which was designated as a control ports. BWE was verified by ship records and, in two cases, by in situ water quality sensors. BWE

125

CX-011406: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination Notice of Proposed Rulemaking for Energy Conservation Standards for General Service Fluorescent Lamps and Incandescent Reflector Lamps...

126

DSM Electricity Savings Potential in the Buildings Sector in APP Countries  

E-Print Network [OSTI]

150 million compact fluorescent light bulbs in 2010. (ChinaCleaners Incandescent Bulbs Fluorescent Lamps Ballasts forincandescent bulbs with compact fluorescent lamps. Consumers

McNeil, MIchael

2011-01-01T23:59:59.000Z

127

Microsoft Word - SWMU 542  

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

Electrical wire, metal light fixtures & ballasts, mercury vapor lights and incandescent lights. WASTE QUANTITY: 542a - Approximately 35 ft 3 . 542b - Approximately 75 ft 3...

128

Variational Approach for Predicting the Load Deformation Response of a Double Stretched Membrane Reflector Module  

SciTech Connect (OSTI)

This report presents an analytical model useful for design and sizing purposes to describe the load deformation response of a stretched membrane reflector module structural system.

Murphy, L. M.

1985-10-01T23:59:59.000Z

129

Reflector and Shield Material Properties for Project Prometheus  

SciTech Connect (OSTI)

This letter provides updated reflector and shield preliminary material property information to support reactor design efforts. The information provided herein supersedes the applicable portions of Revision 1 to the Space Power Program Preliminary Reactor Design Basis (Reference (a)). This letter partially answers the request in Reference (b) to provide unirradiated and irradiated material properties for beryllium, beryllium oxide, isotopically enriched boron carbide ({sup 11}B{sub 4}C) and lithium hydride. With the exception of {sup 11}B{sub 4}C, the information is provided in Attachments 1 and 2. At the time of issuance of this document, {sup 11}B{sub 4}C had not been studied.

J. Nash

2005-11-02T23:59:59.000Z

130

Optical device with low electrical and thermal resistance bragg reflectors  

DOE Patents [OSTI]

A compound-semiconductor optical device and method. The optical device is provided with one or more asymmetrically-graded heterojunctions between compound semiconductor layers for forming a distributed Bragg reflector mirror having an improved electrical and thermal resistance. Efficient light-emitting devices such as light-emitting diodes, resonant-cavity light-emitting diodes, and vertical-cavity surface-emitting lasers may be formed according to the present invention, which may be applied to the formation of resonant-cavity photodetectors.

Lear, Kevin L. (Albuquerque, NM)

1996-01-01T23:59:59.000Z

131

Design constraints on Cherenkov telescopes with Davies-Cotton reflectors  

E-Print Network [OSTI]

This paper discusses the construction of high-performance ground-based gamma-ray Cherenkov telescopes with a Davies-Cotton reflector. For the design of such telescopes, usually physics constrains the field-of-view, while the photo-sensor size is defined by limited options. Including the effect of light-concentrators in front of the photo sensor, it is demonstrated that these constraints are enough to mutually constrain all other design parameters. The dependability of the various design parameters naturally arises once a relationship between the value of the point-spread functions at the edge of the field-of-view and the pixel field-of-view is introduced. To be able to include this constraint into a system of equations, an analytical description for the point-spread function of a tessellated Davies-Cotton reflector is derived from Taylor developments and ray-tracing simulations. Including higher order terms renders the result precise on the percent level. Design curves are provided within the typical phase sp...

Bretz, Thomas

2013-01-01T23:59:59.000Z

132

Temperature and thermal stress distributions for the HFIR permanent reflector generated by nuclear heating  

SciTech Connect (OSTI)

The beryllium permanent reflector of the High Flux Isotope Reactor has the main functions for slowing down and reflecting the neutrons and housing the experimental facilities. The reflector is heated as a result of the nuclear reaction. Heat is removed mainly by the cooling water passing through the densely distributed coolant holes along the vertical or axial direction of the reflector. The reflector neutronic distribution and its heating rate are calculated by J.C. Gehin of the Oak Ridge National Laboratory by applying the Monte Carlo Code MCNP. The heat transfer boundary conditions along several reflector interfaces are estimated to remove additional heat from the reflector. The present paper is to report the calculation results of the temperature and the thermal stress distributions of the permanent reflector by applying the computer aided design code I-DEAS and the finite element code ABAQUS. The present calculation is to estimate the high stress areas as a result of the new beam tube cutouts along the horizontal mid-plane of the reflector of the recent reactor upgrade project. These high stresses were not able to be calculated in the preliminary design analysis in earlier 60`s. The heat transfer boundary conditions are used in this redesigned calculation. The material constants and the acceptance criteria for the allowable stresses are mainly based on that assumed in the preliminary design report.

Chang, S.J.

1998-04-01T23:59:59.000Z

133

DISSERTATION ELECTRON-REFLECTOR STRATEGY FOR CdTe THIN-FILM SOLAR CELLS  

E-Print Network [OSTI]

DISSERTATION ELECTRON-REFLECTOR STRATEGY FOR CdTe THIN-FILM SOLAR CELLS Submitted by Kuo-Jui Hsiao ELECTRON- REFLECTOR STRATEGY FOR CdTe THIN-FILM SOLAR CELLS BE ACCEPTED AS FULFILLING IN PART REQUIREMENTS SOLAR CELLS The CdTe thin-film solar cell has a large absorption coefficient and high theoretical

Sites, James R.

134

Reflector for efficient coupling of a laser beam to air or other fluids  

DOE Patents [OSTI]

A reflector array is disclosed herein that provides a controlled region or regions of plasma breakdowns from a laser beam produced at a remotely-based laser source. The plasma may be applied to produce thrust to propel a spacecraft, or to diagnose a laser beam, or to produce shock waves. The spacecraft propulsion system comprises a reflector array attached to the vehicle. The reflector array comprises a plurality of reflectors spaced apart on a reflective surface, with each reflector acting as an independent focusing mirror. The reflectors are spaced closely together to form a continuous or partially-continuous surface. The reflector array may be formed from a sheet of reflective material, such as copper or aluminum. In operation, a beam of electromagnetic energy, such as a laser beam, is directed at the reflectors which focus the reflected electromagnetic energy at a plurality of regions off the surface. The energy concentrated in the focal region causes a breakdown of the air or other fluid in the focal region, creating a plasma. Electromagnetic energy is absorbed in the plasma and it grows in volume, compressing and heating the adjacent fluid thereby providing thrust. Laser pulses may be applied repetitively. After each such thrust pulse, fresh air can be introduced next to the surface either laterally, or through a perforated surface. If air or some other gas or vapor is supplied, for example from a tank carried on board a vehicle, this invention may also be used to provide thrust in a vacuum environment. 10 figs.

Kare, J.T.

1992-10-06T23:59:59.000Z

135

Reflector for efficient coupling of a laser beam to air or other fluids  

DOE Patents [OSTI]

A reflector array is disclosed herein that provides a controlled region or regions of plasma breakdowns from a laser beam produced at a remotely-based laser source. The plasma may be applied to produce thrust to propel a spacecraft, or to diagnose a laser beam, or to produce shockwaves. The spacecraft propulsion system comprises a reflector array attached to the vehicle. The reflector array comprises a plurality of reflectors spaced apart on a reflective surface, with each reflector acting as an independent focusing mirror. The reflectors are spaced closely together to form a continuous or partially-continuous surface. The reflector array may be formed from a sheet of reflective material, such as copper or aluminum. In operation, a beam of electromagnetic energy, such as a laser beam, is directed at the reflectors which focus the reflected electromagnetic energy at a plurality of regions off the surface. The energy concentrated in the focal region causes a breakdown of the air or other fluid in the focal region, creating a plasma. Electromagnetic energy is absorbed in the plasma and it grows in volume, compressing and heating the adjacent fluid thereby providing thrust. Laser pulses may be applied repetitively. After each such thrust pulse, fresh air can be introduced next to the surface either laterally, or through a perforated surface. If air or some other gas or vapor is supplied, for example from a tank carried on board a vehicle, this invention may also be used to provide thrust in a vacuum environment.

Kare, Jordin T. (Pleasanton, CA)

1992-01-01T23:59:59.000Z

136

What is a seismic reflector like? Nathalie Favretto-Cristini1  

E-Print Network [OSTI]

What is a seismic reflector like? Nathalie Favretto-Cristini1 , Paul Cristini1 , and Eric de of reflectors from a seismic viewpoint. This region is repre- sented by a volume of integration of medium and syncline type. The maximum vertical extent might be larger than the seismic wavelengths for subcritical

Boyer, Edmond

137

Advanced Manufacture of Second-Surface, Silvered Glass Reflectors for High-Performance, Low-Cost CSP Collector Systems  

Broader source: Energy.gov [DOE]

Advanced Manufacture of Second-Surface, Silvered Glass Reflectors for High-Performance, Low-Cost CSP Collector Systems

138

Preparation of nuclear libraries with deterministic and stochastic methods for LWR reflectors  

SciTech Connect (OSTI)

The explicit reflector methodology is used in the system of codes CASMO-5 / SIMULATE-3 to include the reflector around the active core into the computational region and avoid adopting any ad-hoc or experimental albedo coefficients as boundary conditions. However, to complete the core calculation, a set of cross sections and discontinuity factors is needed for the reflector nodes and the accuracy of these nuclear parameters influences the final results, in particular along the peripheral regions of the core. In this paper the explicit reflector methodology of CASMO-5 is adopted to evaluate the few-group cross sections and discontinuity factors of the different reflector cases, based on the design of Generation II and III LWR reactors. In addition, in the perspective of using Monte-Carlo codes as a complementary option for lattice calculations of reflector configurations, the stochastic SERPENT code is also included as part of this benchmark. With the latter, the impact of applying 2-D reflector models with homogenized materials instead of explicit representation of the real geometrical structures is moreover evaluated and shown to be limited. (authors)

Canepa, S.; Hursin, M.; Ferroukhi, H.; Pautz, A. [Paul Scherrer Institut PSI, 5232, Villigen PSI (Switzerland)

2013-07-01T23:59:59.000Z

139

Design and fabrication of highly efficient electrooptic modulators using bragg grating reflectors  

E-Print Network [OSTI]

-directional coupling that includes an attenuation coefficient. The Bragg grating spectral characteristics are exploited to fabricate distributed Bragg feedback modulators (DBFM) and Bragg reflector Fabry-Perot modulators (BFPM). The sharp cut-off in transmission...

Kim, Ryoung-Han

2006-04-12T23:59:59.000Z

140

Photodetector with absorbing region having resonant periodic absorption between reflectors  

DOE Patents [OSTI]

A photodetector is disclosed that is responsive to a wavelength or wavelengths of interest which have heretofore been unrealized. The photodetector includes a resonant cavity structure bounded by first and second reflectors, the resonant cavity structure being resonant at the wavelength or wavelengths of interest for containing a plurality of standing waves therein. The photodetector further includes a radiation absorbing region disposed within the resonant cavity structure, the radiation absorbing region including a plurality of radiation absorbing layers spaced apart from one another by a distance substantially equal to a distance between antinodes of adjacent ones of the standing waves. Each of radiation absorbing layers is spatially positioned at a location of one of the antinodes of one of the standing waves such that radiation absorption is enhanced. The radiation absorbing layers may be either bulk layers or quantum wells includes a plurality of layers, each of which is comprised of a strained layer of InGaAs. Individual ones of the InGaAs layers are spaced apart from one another by a GaAs barrier layer. 11 figs.

Bryan, R.P.; Olbright, G.R.; Brennan, T.M.; Tsao, J.Y.

1995-02-14T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

2004 35thAnnual IEEE Power Electronics SpecialistsConference Aachen, Germany. 2004 Digital Controller Design for Electronic Ballasts with Phase Control  

E-Print Network [OSTI]

2004 35thAnnual IEEE Power Electronics SpecialistsConference Aachen, Germany. 2004 Digital Controller Design for Electronic Ballasts with Phase Control Yan Yin and Regan Zane Colorado Power Electronics Center University of Colorado at Boulder Boulder, CO 80309-0425 yiny@colorado.edu, zane

142

Enhanced quantum efficiency of amorphous silicon thin film solar cells with the inclusion of a rear-reflector thin film  

SciTech Connect (OSTI)

We investigated the growth mechanism of amorphous silicon thin films by implementing hot-wire chemical vapor deposition and fabricated thin film solar cell devices. The fabricated cells showed efficiencies of 7.5 and 8.6% for the samples without and with the rear-reflector decomposed by sputtering, respectively. The rear-reflector enhances the quantum efficiency in the infrared spectral region from 550 to 750?nm. The more stable quantum efficiency of the sample with the inclusion of a rear-reflector than the sample without the rear-reflector due to the bias effect is related to the enhancement of the short circuit current.

Park, Seungil [Department of Mechanical Engineering, Chonbuk National University, Jeonju 561-756 (Korea, Republic of); Energy Conversions Technology Center, Korea Institute of Industrial Technology, Cheonan 331-825 (Korea, Republic of); Yong Ji, Hyung; Jun Kim, Myeong; Hyeon Peck, Jong [Energy Conversions Technology Center, Korea Institute of Industrial Technology, Cheonan 331-825 (Korea, Republic of); Kim, Keunjoo, E-mail: kimk@chonbuk.ac.kr [Department of Mechanical Engineering, Chonbuk National University, Jeonju 561-756 (Korea, Republic of)

2014-02-17T23:59:59.000Z

143

Midtemperature solar systems test facility predictions for thermal performance of the Acurex solar collector with FEK 244 reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions are presented for the Acurex solar collector, with FEK 244 reflector surface, for three output temperatures at five cities in the United States.

Harrison, T.D.

1981-01-01T23:59:59.000Z

144

Heavy reflector experiments in the IPEN/MB-01 reactor: Stainless steel, carbon steel and nickel  

SciTech Connect (OSTI)

New experiments devoted to the measurements of physical parameters of a light water core surrounded by a heavy reflector were performed in the IPEN/MB-01 research reactor facility. These experiments comprise three sets of heavy reflector (SS-304, Carbon Steel, and Nickel) in a form of laminates around 3 mm thick. Each set was introduced individually in the west face of the core of the IPEN/MB-01 reactor. The aim here is to provide high quality experimental data for the interpretation and validation of the SS-304 heavy reflector calculation methods. The experiments of Carbon Steel, which is composed mainly of iron, and Nickel were performed to provide a consistent and an interpretative check for the SS-304 reflector experiment. The experimental results comprise critical control bank positions, temperatures and reactivities as a function of the number of the plates. Particularly to the case of Nickel, the experimental data are unique of its kind. The theoretical analysis was performed by MCNP-5 with the nuclear data library ENDF/B-VII.0. It was shown that this nuclear data library has a very good performance up to thirteen plates and overestimates the reactivity for higher number of plates independently of the type of the reflector.

Santos, Adimir dos; Andrade e Silva, Graciete Simoes de; Jerez, Rogerio; Liambos Mura, Luis Felipe; Fuga, Rinaldo [Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP Av. Prof. Lineu Prestes 2242 - CEP 05508-000 Sao Paulo, SP (Brazil)

2013-05-06T23:59:59.000Z

145

Long-range, full-duplex, modulated-reflector cell phone for voice/data transmission  

DOE Patents [OSTI]

A long-range communications apparatus utilizing modulated-reflector technology is described. The apparatus includes an energy-transmitting base station and remote units that do not emit radiation in order to communicate with the base station since modulated-reflector technology is used whereby information is attached to an RF carrier wave originating from the base station which is reflected by the remote unit back to the base station. Since the remote unit does not emit radiation, only a low-power power source is required for its operation. Information from the base station is transmitted to the remote unit using a transmitter and receiver, respectively. The range of such a communications system is determined by the properties of a modulated-reflector half-duplex link.

Neagley, Daniel L. (Albuquerque, NM); Briles, Scott D. (Los Alamos, NM); Coates, Don M. (Santa Fe, NM); Freund, Samuel M. (Los Alamos, NM)

2002-01-01T23:59:59.000Z

146

Wafer-Bonded Internal Back-Surface Reflectors for Enhanced TPV Performance  

SciTech Connect (OSTI)

This paper discusses recent efforts to realize GaInAsSb/GaSb TPV cells with an internal back-surface reflector (BSR). The cells are fabricated by wafer bonding the GaInAsSb/GaSb device layers to GaAs substrates with a dielectric/Au reflector, and subsequently removing the GaSb substrate. The internal BSR enhances optical absorption within the device while the dielectric layer provides electrical isolation. This approach is compatible with monolithic integration of series-connected TPV cells and can mitigate the requirements of filters used for front-surface spectral control.

C.A. Wang; P.G. Murphy; P.W. O'Brien; D.A. Shiau; A.C. Anderson; Z.L. Liau; D.M. Depoy; G. Nichols

2002-08-12T23:59:59.000Z

147

INCREASED CELL EFFICIENCY IN InGaAs THIN FILM SOLAR CELLS WITH DIELECTRIC AND METAL BACK REFLECTORS  

E-Print Network [OSTI]

INCREASED CELL EFFICIENCY IN InGaAs THIN FILM SOLAR CELLS WITH DIELECTRIC AND METAL BACK REFLECTORS solar cells using back reflectors. We studied absorption enhancement in InGaAs and InGaAsP thin film and metal, on InGaAs thin film solar cell performance by device modeling and nu- merical simulations. DEVICE

Atwater, Harry

148

Incandescent Lighting | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power.pdf11-161-LNG | Department ofHTS CableDepartment ofDepartment ofDepartmentInauguration

149

A SOLAR STILL AUGMENTED WITH A FLAT-PLATE COLLECTOR AND A REFLECTOR  

E-Print Network [OSTI]

A SOLAR STILL AUGMENTED WITH A FLAT-PLATE COLLECTOR AND A REFLECTOR A. Saleh A. Badran Mechanical ­ Jordan Amman ­ Jordan e-mail: asaleh@philadelphia.edu.jo e-mail: badran@ju.edu.jo ABSTRACT A solar distillation system was built and tested to study the effect of increasing the solar radiation incident

150

Reflector modelling of small high leakage cores making use of multi-group nodal equivalence theory  

SciTech Connect (OSTI)

This research focuses on modelling reflectors in typical material testing reactors (MTRs). Equivalence theory is used to homogenise and collapse detailed transport solutions to generate equivalent nodal parameters and albedo boundary conditions for reflectors, for subsequent use in full core nodal diffusion codes. This approach to reflector modelling has been shown to be accurate for two-group large commercial light water reactor (LWR) analysis, but has not been investigated for MTRs. MTRs are smaller, with much larger leakage, environment sensitivity and multi-group spectrum dependencies than LWRs. This study aims to determine if this approach to reflector modelling is an accurate and plausible homogenisation technique for the modelling of small MTR cores. The successful implementation will result in simplified core models, better accuracy and improved efficiency of computer simulations. Codes used in this study include SCALE 6.1, OSCAR-4 and EQUIVA (the last two codes are developed and used at Necsa). The results show a five times reduction in calculational time for the proposed reduced reactor model compared to the traditional explicit model. The calculated equivalent parameters however show some sensitivity to the environment used to generate them. Differences in the results compared to the current explicit model, require more careful investigation including comparisons with a reference result, before its implementation can be recommended. (authors)

Theron, S. A. [South African Nuclear Energy Corporation (Necsa), PO Box 582, Pretoria, 0001 (South Africa); Reitsma, F. [Calvera Consultants, PO Box 150, Strubensvallei, 1735 (South Africa)

2012-07-01T23:59:59.000Z

151

Comparison of fixed asymmetrical and symmetrical reflectors for evacuated tube solar receivers  

SciTech Connect (OSTI)

A computer simulation of the relative performance of certain truncated symmetrical and asymmetrical fixed reflector designs for solar energy collection was performed. The comparison was on the basis of annual energy delivered to a circular cylindrical evacuated tube receiver per unit of mirror area, but seasonal load information was also included to determine possible seasonal load matching advantages of one type of collector over another when storage is employed. Circumsolar radiation models based on recent correlations in the literature was included. Major conclusions were that: (1) Annual solar fractions of between 80% and 95% seem to be feasible with a load matching collector used with moderate energy storage, with 80-90% being a likely optimum; (2) CPC reflectors always gave the best annual output performance per unit of mirror area, and the lowest receiver area for situations of constant annual load, regardless of whether the storage is included in the system; (3) Asymmetrical concentrator are more cost-effective for strongly seasonally asymmetrical load patterns; (4) Fixed parabolic systems required much more receiver area than the symmetrical CPC and asymmetrical system investigated; (5) Concentration levels utilizable in fixed systems are higher than previously supposed, with 3.5:1 in an asymmetrical reflector being optimal or nearly optimal for the domestic load pattern used in the study; (6) Using a load matched reflector, the amount of storage required to achieve solar fractions of total thermal energy (space heating, water heating, clothes drying) above 90% in a residence appears to be much lower than previously thought.

Mills, D.R.; Monger, A. (Univ. of Sydney (Australia)); Morrison, G.L. (Univ. of New South Wales, Sydney (Australia))

1994-07-01T23:59:59.000Z

152

An Advanced Computational Scheme for the Optimization of 2D Radial Reflectors in Pressurized Water Reactors  

E-Print Network [OSTI]

This paper presents a computational scheme for the determination of equivalent 2D multi-group heterogeneous reflectors in a Pressurized Water Reactor (PWR). The proposed strategy is to define a full-core calculation consistent with a reference lattice code calculation such as the Method Of Characteristics (MOC) as implemented in APOLLO2 lattice code. The computational scheme presented here relies on the data assimilation module known as "Assimilation de donn\\'{e}es et Aide \\`{a} l'Optimisation (ADAO)" of the SALOME platform developed at \\'{E}lectricit\\'{e} De France (EDF), coupled with the full-core code COCAGNE and with the lattice code APOLLO2. A first validation of the computational scheme is made using the OPTEX reflector model developed at \\'{E}cole Polytechnique de Montr\\'{e}al (EPM). As a result, we obtain 2D multi-group, spatially heterogeneous 2D reflectors, using both diffusion or $\\text{SP}_{\\text{N}}$ operators. We observe important improvements of the power discrepancies distribution over the core when using reflectors computed with the proposed computational scheme, and the $\\text{SP}_{\\text{N}}$ operator enables additional improvements.

Thomas Clerc; Alain Hťbert; Hadrien Leroyer; Jean-Philippe Argaud; Bertrand Bouriquet; Agťlique PonÁot

2014-05-12T23:59:59.000Z

153

Analysis of large reflector antennas using CSP fringe formulation and higher-order diffraction  

E-Print Network [OSTI]

Analysis of large reflector antennas using CSP fringe formulation and higher-order diffraction- tric conductor (PEC) objects when illuminated by a Complex Source Points (CSP) beam expansion (S of a CSP-expansion illumination. In this work we discuss an application of the CSP fringe formulation

Nehorai, Arye

154

Steam-circuit Model for the Compact Linear Fresnel Reflector , G. L. Morrison1  

E-Print Network [OSTI]

Steam-circuit Model for the Compact Linear Fresnel Reflector Prototype J. D. Pye1 , G. L. Morrison1 , D. R. Mills2 , P. Le Lievre3 and M. Behnia1 1 School of Mechanical and Manufacturing, University currently in the prototype stage at the Liddell power station in the Hunter Valley, NSW. A system

155

DESIGN AND TESTING FOR NOVEL JOINT FOR WAVE REFLECTORS James Tedd1  

E-Print Network [OSTI]

tests. This is a steel bar reinforced concrete tank with the dimensions 15.7 m long, 8.5 m wide and 1DESIGN AND TESTING FOR NOVEL JOINT FOR WAVE REFLECTORS James Tedd1 , Erik Friis-Madsen2 , and Peter of the Wave Dragon has begun. This paper describes the design and testing process behind this. Tests conducted

156

Westinghouse Lighting: Noncompliance Determination (2010-CE-09/1001)  

Broader source: Energy.gov [DOE]

DOE issued a Notice of Noncompliance Determination to Westinghouse Lighting Corporation finding that various models of incandescent reflector lamps do not comport with the energy conservation standards.

157

2014-12-30 Issuance: Energy Conservation Standard for General...  

Energy Savers [EERE]

2014-12-30 Issuance: Energy Conservation Standard for General Service Fluorescent Lamps and Incandescent Reflector Lamps; Final Rule 2014-12-30 Issuance: Energy Conservation...

158

2014-04-11 Issuance: Energy Conservation Standards for General...  

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

Energy Conservation Standards for General Service Fluorescent Lamps and Incandescent Reflector Lamps; Notice of Proposed Rulemaking 2014-04-11 Issuance: Energy Conservation...

159

Westinghouse and Fuzhou Permitted to Restart Distribution of...  

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

determining, based on corrected test data provided by Westinghouse, that the incandescent reflector lamps listed below are compliant with the federal energy conservation...

160

DOE Requires Westinghouse to Cease Sales of Two Light Bulb Models...  

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

and Fuzhou Sunlight Lighting Electrical Appliance Company to allow the companies to resume sales of an incandescent reflector lamp basic model 50PAR30F (Westinghouse product...

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

The development of large area saturable Bragg reflectors for the generation of widely-tunable ultra-short pulses  

E-Print Network [OSTI]

This thesis focuses on the realization of two photonic devices; 1) semiconductor lasers and 2) large area broadband Saturable Bragg Reflectors (SBRs). Semiconductor lasers explore the use of 3D and 2D quantum confinement ...

Nabanja, Sheila P

2012-01-01T23:59:59.000Z

162

Solar receiver heliostat reflector having a linear drive and position information system  

DOE Patents [OSTI]

A heliostat for a solar receiver system comprises an improved drive and control system for the heliostat reflector assembly. The heliostat reflector assembly is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e., heat receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The improved drive system includes linear stepping motors which comprise low weight, low cost, electronic pulse driven components. One embodiment comprises linear stepping motors controlled by a programmed, electronic microprocessor. Another embodiment comprises a tape driven system controlled by a position control magnetic tape.

Horton, Richard H. (Schenectady, NY)

1980-01-01T23:59:59.000Z

163

Radar cross section of triangular trihedral reflector with extended bottom plate.  

SciTech Connect (OSTI)

Trihedral corner reflectors are the preferred canonical target for SAR performance evaluation for many radar development programs. The conventional trihedrals have problems with substantially reduced Radar Cross Section (RCS) at low grazing angles, unless they are tilted forward, but in which case other problems arise. Consequently there is a need for better low grazing angle performance for trihedrals. This is facilitated by extending the bottom plate. A relevant analysis of RCS for an infinite ground plate is presented. Practical aspects are also discussed.

Brock, Billy C.; Doerry, Armin Walter

2009-05-01T23:59:59.000Z

164

Transpolarising Trihedral Corner Reflector Characterisation Using a GB-SAR System  

E-Print Network [OSTI]

The use of a low profile, light weight and easy to fabricate transpolarising surface placed on one side of a trihedral corner reflector (TCR) as polarimetric calibrator is presented in this letter. The transpolarising-TCR (TTCR) presents a high backscattered cross-polar response contrary to standard TCRs. The performance of this device has been tested at X-band using the UPC GB-SAR.

Ferrer, Pere J; Aguasca, Albert; Pipia, Luca; Gonzalez-Arbesu, Jose M; Fabregas, Xavier; Romeu, Jordi

2011-01-01T23:59:59.000Z

165

Transpolarising Trihedral Corner Reflector Characterisation Using a GB-SAR System  

E-Print Network [OSTI]

The use of a low profile, light weight and easy to fabricate transpolarising surface placed on one side of a trihedral corner reflector (TCR) as polarimetric calibrator is presented in this letter. The transpolarising-TCR (TTCR) presents a high backscattered cross-polar response contrary to standard TCRs. The performance of this device has been tested at X-band using the UPC GB-SAR.

Pere J. Ferrer; Carlos Lopez-Martinez; Albert Aguasca; Luca Pipia; Jose M. Gonzalez-Arbesu; Xavier Fabregas; Jordi Romeu

2011-02-10T23:59:59.000Z

166

Advanced ultraviolet-resistant silver mirrors for use in solar reflectors  

DOE Patents [OSTI]

A silver mirror construction that maintains a high percentage of hemispherical reflectance throughout the UV and visible spectrum when used in solar reflectors, comprising:a) a pressure sensitive adhesive layer positioned beneath a silver overlay;b) a polymer film disposed on the silver overlay;c) an adhesive layer positioned on the polymer film; andd) a UV screening acrylic film disposed on the adhesive layer.

Jorgensen, Gary J. (Pine, CO); Gee, Randy (Arvada, CO)

2009-11-03T23:59:59.000Z

167

The formation of optical membrane reflector surfaces using uniform pressure loading  

SciTech Connect (OSTI)

Potentially high quality optical reflector surfaces are attainable with the use of pressure formed membranes. Such reflector surfaces offer the prospect of very low weight and low cost. The formation of such surfaces, using initially flat circular membranes with uniform pressure loading, is studied in this paper. Finite axisymmetric deformations, along with both linear and nonlinear material response is considered. A wide range of focal-length-to-diameter ratios (above 0.6) are addressed and the structural/optical response mechanisms that lead to optical distortions relative to ideal parabolic reflector shapes are also considered. Results show that elastic material response can often lead to a significantly larger deviation from the ideal shape than will inelastic material response. This results primarily from the ability to limit stress nonuniformities when inelastic material response is operative. Furthermore, when under pressure loading the membrane focal length decreases monotonically with increasing radius for both linear and nonlinear material response. Further, the predicted focal length variation is increasingly nonlinear near the membrane support.

Murphy, L.M.; Tuan, C.

1987-08-01T23:59:59.000Z

168

An Advanced Computational Scheme for the Optimization of 2D Radial Reflectors in Pressurized Water Reactors  

E-Print Network [OSTI]

This paper presents a computational scheme for the determination of equivalent 2D multi-group heterogeneous reflectors in a Pressurized Water Reactor (PWR). The proposed strategy is to define a full-core calculation consistent with a reference lattice code calculation such as the Method Of Characteristics (MOC) as implemented in APOLLO2 lattice code. The computational scheme presented here relies on the data assimilation module known as "Assimilation de donn\\'{e}es et Aide \\`{a} l'Optimisation (ADAO)" of the SALOME platform developed at \\'{E}lectricit\\'{e} De France (EDF), coupled with the full-core code COCAGNE and with the lattice code APOLLO2. A first validation of the computational scheme is made using the OPTEX reflector model developed at \\'{E}cole Polytechnique de Montr\\'{e}al (EPM). As a result, we obtain 2D multi-group, spatially heterogeneous 2D reflectors, using both diffusion or $\\text{SP}_{\\text{N}}$ operators. We observe important improvements of the power discrepancies distribution over the cor...

Clerc, Thomas; Leroyer, Hadrien; Argaud, Jean-Philippe; Bouriquet, Bertrand; PonÁot, Agťlique

2014-01-01T23:59:59.000Z

169

Design of Semiconductor-Based Back Reflectors for High Voc Monolithic Multijunction Solar Cells: Preprint  

SciTech Connect (OSTI)

State-of-the-art multijunction cell designs have the potential for significant improvement before going to higher number of junctions. For example, the Voc can be substantially increased if the photon recycling taking place in the junctions is enhanced. This has already been demonstrated (by Alta Devices) for a GaAs single-junction cell. For this, the loss of re-emitted photons by absorption in the underlying layers or substrate must be minimized. Selective back surface reflectors are needed for this purpose. In this work, different architectures of semiconductor distributed Bragg reflectors (DBR) are assessed as the appropriate choice for application in monolithic multijunction solar cells. Since the photon re-emission in the photon recycling process is spatially isotropic, the effect of the incident angle on the reflectance spectrum is of central importance. In addition, the DBR structure must be designed taking into account its integration into the monolithic multijunction solar cells, concerning series resistance, growth economics, and other issues. We analyze the tradeoffs in DBR design complexity with all these requirements to determine if such a reflector is suitable to improve multijunction solar cells.

Garcia, I.; Geisz, J.; Steiner, M.; Olson, J.; Friedman, D.; Kurtz, S.

2012-06-01T23:59:59.000Z

170

Method of manufacturing large dish reflectors for a solar concentrator apparatus  

DOE Patents [OSTI]

A method of manufacturing monolithic glass reflectors for concentrating sunlight in a solar energy system is disclosed. The method of manufacturing allows large monolithic glass reflectors to be made from float glass in order to realize significant cost savings on the total system cost for a solar energy system. The method of manufacture includes steps of heating a sheet of float glass positioned over a concave mold until the sheet of glass sags and stretches to conform to the shape of the mold. The edges of the dish-shaped glass are rolled for structural stiffening around the periphery. The dish-shaped glass is then silvered to create a dish-shaped mirror that reflects solar radiation to a focus. The surface of the mold that contacts the float glass preferably has a grooved surface profile comprising a plurality of cusps and concave valleys. This grooved profile minimizes the contact area and marring of the specular glass surface, reduces parasitic heat transfer into the mold and increases mold lifetime. The disclosed method of manufacture is capable of high production rates sufficiently fast to accommodate the output of a conventional float glass production line so that monolithic glass reflectors can be produced as quickly as a float glass production can make sheets of float glass to be used in the process.

Angel, Roger P (Tucson, AZ); Olbert, Blain H (Tucson, AZ)

2011-12-27T23:59:59.000Z

171

Development and Testing of Abrasion Resistant Hard Coats For Polymer Film Reflectors: Preprint  

SciTech Connect (OSTI)

Reflective polymer film technology can significantly reduce the cost of solar reflectors and installed Concentrated Solar Power (CSP) plants by both reduced material cost and lower weight. One challenge of polymer reflectors in the CSP environment pertains to contact cleaning methods typically used with glass mirrors. Such contact cleaning methods can scratch the surface of polymer reflectors and thereby reduce specular reflectance. ReflecTech, Inc. (a subsidiary of SkyFuel, Inc.) and the National Renewable Energy Laboratory (NREL) initiated a cooperative research and development agreement (CRADA) to devise and develop an abrasion resistant coating (ARC) suitable for deposition onto polymer based mirror film. A number of candidate ARC products were identified as candidate formulations. Industrial collaborators prepared samples having their ARCs deposited onto ReflecTech Mirror Film pre-laminated to aluminum sheet substrates. Samples were provided for evaluation and subjected to baseline (unweathered) and accelerated exposure conditions and subsequently characterized for abrasion resistance and adhesion. An advanced ARC product has been identified that exhibits outstanding initial abrasion resistance and adhesion to ReflecTech Mirror Film. These properties were also retained after exposure to the various accelerated stress conditions. This material has been successfully manufactured as a 1.5 m wide roll-to-roll construction in a production environment.

Jorgensen, G.; Gee, R.; DiGrazia, M.

2010-10-01T23:59:59.000Z

172

Chemical Effect of Dry and Wet Cleaning of the Ru Protective Layer of the Extreme ultraviolet (EUV) Lithography Reflector  

SciTech Connect (OSTI)

The authors report the chemical influence of cleaning of the Ru capping layer on the extreme ultraviolet (EUV) reflector surface. The cleaning of EUV reflector to remove the contamination particles has two requirements: to prevent corrosion and etching of the reflector surface and to maintain the reflectivity functionality of the reflector after the corrosive cleaning processes. Two main approaches for EUV reflector cleaning, wet chemical treatments [sulfuric acid and hydrogen peroxide mixture (SPM), ozonated water, and ozonated hydrogen peroxide] and dry cleaning (oxygen plasma and UV/ozone treatment), were tested. The changes in surface morphology and roughness were characterized using scanning electron microscopy and atomic force microscopy, while the surface etching and change of oxidation states were probed with x-ray photoelectron spectroscopy. Significant surface oxidation of the Ru capping layer was observed after oxygen plasma and UV/ozone treatment, while the oxidation is unnoticeable after SPM treatment. Based on these surface studies, the authors found that SPM treatment exhibits the minimal corrosive interactions with Ru capping layer. They address the molecular mechanism of corrosive gas and liquid-phase chemical interaction with the surface of Ru capping layer on the EUV reflector.

Belau, Leonid; Park, Jeong Y.; Liang, Ted; Seo, Hyungtak; Somorjai, Gabor A.

2009-04-10T23:59:59.000Z

173

Midtemperature Solar Systems Test Facility predictions for thermal performance of the Suntec solar collector with heat-formed glass reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions are presented for the Suntec solar collector, with heat-formed glass reflector surface, for three output temperatures at five cities in the United States.

Harrison, T.D.

1980-11-01T23:59:59.000Z

174

Seismic wave propagation in thinly-layered media with steep reflectors  

SciTech Connect (OSTI)

Seismic waves reflected from steep reflectors in the earth`s subsurface spend a significant amount of time travelling more or less horizontally. Therefore, accurate imaging of steep geologic structure requires knowledge of the behavior of these horizontally propagating waves. In particular, the effect of tunneling on seismic waves propagating in thinly-layered media must be understood. I describe a method for modeling seismic waves traveling in thinly-layered media. This method, a frequency-wavenumber finite-difference scheme coupled with the Born approximation, is useful in studying seismic waves reflected from steep geologic structures.

Deng, H.L.

1992-05-01T23:59:59.000Z

175

Seismic wave propagation in thinly-layered media with steep reflectors  

SciTech Connect (OSTI)

Seismic waves reflected from steep reflectors in the earth's subsurface spend a significant amount of time travelling more or less horizontally. Therefore, accurate imaging of steep geologic structure requires knowledge of the behavior of these horizontally propagating waves. In particular, the effect of tunneling on seismic waves propagating in thinly-layered media must be understood. I describe a method for modeling seismic waves traveling in thinly-layered media. This method, a frequency-wavenumber finite-difference scheme coupled with the Born approximation, is useful in studying seismic waves reflected from steep geologic structures.

Deng, H.L.

1992-05-01T23:59:59.000Z

176

Lamp system with conditioned water coolant and diffuse reflector of polytetrafluorethylene(PTFE)  

DOE Patents [OSTI]

A lamp system with a very soft high-intensity output is provided over a large area by water cooling a long-arc lamp inside a diffuse reflector of polytetrafluorethylene (PTFE) and titanium dioxide (TiO.sub.2) white pigment. The water is kept clean and pure by a one micron particulate filter and an activated charcoal/ultraviolet irradiation system that circulates and de-ionizes and biologically sterilizes the coolant water at all times, even when the long-arc lamp is off.

Zapata, Luis E. (Livermore, CA); Hackel, Lloyd (Livermore, CA)

1999-01-01T23:59:59.000Z

177

Rise Time of the Simulated VERITAS 12 m Davies-Cotton Reflector  

SciTech Connect (OSTI)

The Very Energetic Radiation Imaging Telescope Array System (VERITAS) will utilise Imaging Atmospheric Cherenkov Telescopes (IACTs) based on a Davies-Cotton design with f-number f/1.0 to detect cosmic gamma-rays. Unlike a parabolic reflector, light from the Davies-Cotton does not arrive isochronously at the camera. Here the effect of the telescope geometry on signal rise-time is examined. An almost square-pulse arrival time profile with a rise time of 1.7 ns is found analytically and confirmed through simulation.

White, Richard J. [School of Physics and Astronomy, University of Leeds (United Kingdom)

2005-02-21T23:59:59.000Z

178

See-through amorphous silicon solar cells with selectively transparent and conducting photonic crystal back reflectors for building integrated photovoltaics  

SciTech Connect (OSTI)

Thin semi-transparent hydrogenated amorphous silicon (a-Si:H) solar cells with selectively transparent and conducting photonic crystal (STCPC) back-reflectors are demonstrated. Short circuit current density of a 135?nm thick a-Si:H cell with a given STCPC back-reflector is enhanced by as much as 23% in comparison to a reference cell with an ITO film functioning as its rear contact. Concurrently, solar irradiance of 295?W/m{sup 2} and illuminance of 3480 lux are transmitted through the cell with a given STCPC back reflector under AM1.5 Global tilt illumination, indicating its utility as a source of space heating and lighting, respectively, in building integrated photovoltaic applications.

Yang, Yang [The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Room GB254B, Toronto, Ontario M5S 3G4 (Canada)] [The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Room GB254B, Toronto, Ontario M5S 3G4 (Canada); OíBrien, Paul G. [Department of Materials Science and Engineering, University of Toronto, 184 College Street, Room 140, Toronto, Ontario M5S 3E4 (Canada) [Department of Materials Science and Engineering, University of Toronto, 184 College Street, Room 140, Toronto, Ontario M5S 3E4 (Canada); Materials Chemistry Research Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6 (Canada); Ozin, Geoffrey A., E-mail: gozin@chem.utoronto.ca, E-mail: kherani@ecf.utoronto.ca [Materials Chemistry Research Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6 (Canada); Kherani, Nazir P., E-mail: gozin@chem.utoronto.ca, E-mail: kherani@ecf.utoronto.ca [The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Room GB254B, Toronto, Ontario M5S 3G4 (Canada); Department of Materials Science and Engineering, University of Toronto, 184 College Street, Room 140, Toronto, Ontario M5S 3E4 (Canada)

2013-11-25T23:59:59.000Z

179

MHD compressor---expander conversion system integrated with GCR inside a deployable reflector  

SciTech Connect (OSTI)

This work originates from the proposal MHD Compressor-Expander Conversion System Integrated with a GCR Inside a Deployable Reflector''. The proposal concerned an innovative concept of nuclear, closed-cycle MHD converter for power generation on space-based systems in the multi-megawatt range. The basic element of this converter is the Power Conversion Unit (PCU) consisting of a gas core reactor directly coupled to an MHD expansion channel. Integrated with the PCU, a deployable reflector provides reactivity control. The working fluid could be either uranium hexafluoride or a mixture of uranium hexafluoride and helium, added to enhance the heat transfer properties. The original Statement of Work, which concerned the whole conversion system, was subsequently redirected and focused on the basic mechanisms of neutronics, reactivity control, ionization and electrical conductivity in the PCU. Furthermore, the study was required to be inherently generic such that the study was required to be inherently generic such that the analysis an results can be applied to various nuclear reactor and/or MHD channel designs''.

Tuninetti, G. (Ansaldo S.p.A., Genoa (Italy). Research Div.); Botta, E.; Criscuolo, C.; Riscossa, P. (Ansaldo S.p.A., Genoa (Italy). Nuclear Div.); Giammanco, F. (Pisa Univ. (Italy). Dipt. di Fisica); Rosa-Clot, M. (Florence Univ. (Italy). Dipt. di Fisica)

1989-04-20T23:59:59.000Z

180

Multiplier, moderator, and reflector materials for lithium-vanadium fusion blankets.  

SciTech Connect (OSTI)

The self-cooled lithium-vanadium fusion blanket concept has several attractive operational and environmental features. In this concept, liquid lithium works as the tritium breeder and coolant to alleviate issues of coolant breeder compatibility and reactivity. Vanadium alloy (V-4Cr-4Ti) is used as the structural material because of its superior performance relative to other alloys for this application. However, this concept has poor attenuation characteristics and energy multiplication for the DT neutrons. An advanced self-cooled lithium-vanadium fusion blanket concept has been developed to eliminate these drawbacks while maintaining all the attractive features of the conventional concept. An electrical insulator coating for the coolant channels, spectral shifter (multiplier, and moderator) and reflector were utilized in the blanket design to enhance the blanket performance. In addition, the blanket was designed to have the capability to operate at high loading conditions of 2 MW/m{sup 2} surface heat flux and 10 MW/m{sup 2} neutron wall loading. This paper assesses the spectral shifter and the reflector materials and it defines the technological requirements of this advanced blanket concept.

Gohar, Y.; Smith, D. L.

1999-10-07T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Optical and Durability Evaluation for Silvered Polymeric Mirrors and Reflectors: Cooperative Research and Development Final Report, CRADA Number, CRD-08-316  

SciTech Connect (OSTI)

3M is currently developing silvered polymeric mirror reflectors as low-cost replacements for glass mirrors in concentrating solar power (CSP) systems. This effort is focused on development of reflectors comprising both metallized polymeric mirror films based on improved versions of ECP-305+ or other durable mirror film concepts and appropriate mechanically robust substrates. The objectives for this project are to reduce the system capital and operating costs and to lower the levelized cost of energy for CSP installations. The development of mirror reflectors involves work on both full reflectors and mirror films with and without coatings. Mirror reflectors must meet rigid optical specifications in terms of radius of curvature, slope errors and specularity. Mirror films must demonstrate long-term durability and maintain high reflectivity. 3M would like to augment internal capabilities to validate product performance with methods and tools developed at NREL to address these areas.

Gray, M.

2014-08-01T23:59:59.000Z

182

CX-007850: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Notice of Proposed Rulemaking for Energy Conservation Standards for Certain Reflector, Elliptical Reflector, and Bulged Reflector Incandescent Reflector Lamps CX(s) Applied: B5.1 Date: 01/09/2012 Location(s): Nationwide Offices(s): Energy Efficiency and Renewable Energy

183

A Review of the Reflector Compact Fluorescent Lights Technology Procurement Program: Conclusions and Results  

SciTech Connect (OSTI)

This report describes a project sponsored by the U.S. Department of Energy (DOE) and implemented by the Pacific Northwest National Laboratory (PNNL), from 2000 to 2007 to improve the performance of reflector type (R-lamp) compact fluorescent lamps (CFLs) and increase their availability throughout the United States by means of a technology development and procurement strategy. In 2000, at the request of the U.S. Department of Energyís Emerging Technologies Program and its predecessors, the Pacific Northwest National Laboratory undertook a technology procurement seeking R-CFLs that were specifically designed for use in ICAT recessed can fixtures and that met other minimum performance criteria including minimum light output and size restrictions (to ensure they fit in standard residential recessed cans). The technology procurement included two phases. In Phase I, requests for proposals (RFPs) were issued in October 2002 and five manufacturers responded with 12 lamp models. Eight of these models met the minimum requirements and passed the 6-hour short-term test in a simulated ICAT environment. These eight models were subjected to long-term tests of 6,000 or more hours in a simulated ICAT environment. Three of these models passed the short- and long-term tests and were promoted through the program website (www.pnl.gov/rlamps), press releases, and fliers. To increase the number of qualifying models, a second RFP was issued in June 2005. In April 2007, DOE announced that 16 reflector CFL (R-CFL) models by four manufacturers had met all the minimum requirements of Phase 2 of the R-CFL Technology Innovation Competition. PNNL developed both the criteria and the test apparatus design for Elevated Temperature Life Testing (ETLT), which has been included by DOE in its draft ENERGY STAR specifications for the reflector category of CFLs. PNNL promoted the winning lamps through a program website, press releases, and fliers as well as through program partners. PNNL also helped engage distributors including Costco, the Home Depot, Bonneville Power Administration, and utility organizations.

Sandahl, Linda J.; Gilbride, Theresa L.; Ledbetter, Marc R.; McCullough, Jeffrey J.

2008-05-19T23:59:59.000Z

184

Design and performance of a low-cost acrylic reflector for a ~7x concentrating photovoltaic module  

E-Print Network [OSTI]

of the prototype. The final design is an asymmetric compound parabolic concentrator mounted to an encapsulated increase in power output over an encapsulated receiver with no reflector. Keywords: compound parabolic push for drastic cost reductions in the deployment of solar electricity production has renewed interest

Rollins, Andrew M.

185

Greek research reactor performance characteristics after addition of beryllium reflector and LEU fuel  

SciTech Connect (OSTI)

The GRR-1 is a 5-MW pool-type, light-water-moderated and-cooled reactor fueled with MTR-type fuel elements. Recently received Be reflector blocks will soon be added to the core to add additional reactivity until fresh LEU fuel arrives. REBUS-3 xy fuel cycle analyses, using burnup dependent cross sections, were performed to assist in fuel management decisions for the water- and Be-reflected HEU nonequilibrium cores. Cross sections generated by EPRI-CELL have been benchmarked to identical VIM Monte Carlo models. The size of the Be-reflected LEU core has been reduced to 30 elements compared to 35 for the HEU water-reflected core, and an equilibrium cycle calculation has been performed.

Deen, J.R.; Snelgrove, J.L. [Argonne National Lab., IL (United States); Papastergiou, C. [National Center for Scientific Research, Athens (Greece)

1992-12-31T23:59:59.000Z

186

Greek research reactor performance characteristics after addition of beryllium reflector and LEU fuel  

SciTech Connect (OSTI)

The GRR-1 is a 5-MW pool-type, light-water-moderated and-cooled reactor fueled with MTR-type fuel elements. Recently received Be reflector blocks will soon be added to the core to add additional reactivity until fresh LEU fuel arrives. REBUS-3 xy fuel cycle analyses, using burnup dependent cross sections, were performed to assist in fuel management decisions for the water- and Be-reflected HEU nonequilibrium cores. Cross sections generated by EPRI-CELL have been benchmarked to identical VIM Monte Carlo models. The size of the Be-reflected LEU core has been reduced to 30 elements compared to 35 for the HEU water-reflected core, and an equilibrium cycle calculation has been performed.

Deen, J.R.; Snelgrove, J.L. (Argonne National Lab., IL (United States)); Papastergiou, C. (National Center for Scientific Research, Athens (Greece))

1992-01-01T23:59:59.000Z

187

Photonic crystal membrane reflectors by magnetic field-guided metal-assisted chemical etching  

SciTech Connect (OSTI)

Metal-assisted chemical etching (MacEtch) is a simple etching method that uses metal as the catalyst for anisotropic etching of semiconductors. However, producing nano-structures using MacEtch from discrete metal patterns, in contrast to interconnected ones, has been challenging because of the difficulties in keeping the discrete metal features in close contact with the semiconductor. We report the use of magnetic field-guided MacEtch (h-MacEtch) to fabricate periodic nanohole arrays in silicon-on-insulator (SOI) wafers for high reflectance photonic crystal membrane reflectors. This study demonstrates that h-MacEtch can be used in place of conventional dry etching to produce ordered nanohole arrays for photonic devices.

Balasundaram, Karthik; Mohseni, Parsian K.; Li, Xiuling, E-mail: wzhou@uta.edu, E-mail: xiuling@illinois.edu [Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States)] [Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States); Shuai, Yi-Chen; Zhao, Deyin; Zhou, Weidong, E-mail: wzhou@uta.edu, E-mail: xiuling@illinois.edu [Department of Electrical Engineering, NanoFAB Center, University of Texas at Arlington, Arlington, Texas 76019 (United States)] [Department of Electrical Engineering, NanoFAB Center, University of Texas at Arlington, Arlington, Texas 76019 (United States)

2013-11-18T23:59:59.000Z

188

Enhanced absorption of monolayer MoS{sub 2} with resonant back reflector  

SciTech Connect (OSTI)

The optical absorption of monolayer MoS{sub 2} on top of one-dimensional photonic crystal (1DPC) or metal films with spacer layers is theoretically investigated by extracting the permittivity of monolayer MoS{sub 2} from existing experimental results [K. F. Mak et al., Phys. Rev. Lett. 105, 136805 (2010)]. The absorption of graphene with 1DPC across a broad spectral range is substantially enhanced because of the photonic localization at the optical micro-cavity on top of the 1DPC or metal films. The absorption of monolayer MoS{sub 2} can be tuned by varying either the distance between the monolayer MoS{sub 2} and the back reflector or the thickness of the cover layers.

Liu, Jiang-Tao, E-mail: jtliu@semi.ac.cn; Liu, Nian-Hua [Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang 330031 (China); Department of Physics, Nanchang University, Nanchang 330031 (China); Wang, Tong-Biao [Department of Physics, Nanchang University, Nanchang 330031 (China); Li, Xiao-Jing [College of Physics and Energy, Fujian Normal University, Fuzhou 350007 (China)

2014-05-21T23:59:59.000Z

189

Reactivity Accountability Attributed to Reflector Poisons in the High Flux Isotope Reactor  

SciTech Connect (OSTI)

The objective of this study is to develop a methodology to predict the reactivity impact as a function of outage time between cycles of 3He, 6Li, and other poisons in the High Flux Isotope Reactor s (HFIR) beryllium reflector. The reactivity worth at startup of the HFIR has been incorrectly predicted in the past after the reactor has been shut-down for long periods of time. The incorrect prediction was postulated to be due to the erroneous calculation of 3He buildup in the beryllium reflector. It is necessary to develop a better estimate of the start-of-cycle symmetric critical control element positions since if the estimated and actual symmetrical critical control element positions differ by more than $1.55 in reactivity (approximately one-half inch in control element startup position), HFIR is to be shutdown and a technical evaluation is performed to resolve the discrepancy prior to restart. 3He is generated and depleted during operation, but during an outage, the depletion of 3He ceases because it is a stable isotope. 3He is born from the radioactive decay of tritium, and thus the concentration of 3He increases during shutdown. SCALE, specifically the TRITON and CSAS5 control modules including the KENO V.A, COUPLE, and ORIGEN functional modules were utilized in this study. An equation relating the down time (td) to the change in symmetric control element position was generated and validated against measurements for approximately 40 HFIR operating cycles. The newly-derived correlation was shown to improve accuracy of predictions for long periods of down time.

Chandler, David [ORNL; Maldonado, G Ivan [ORNL; Primm, Trent [ORNL

2009-12-01T23:59:59.000Z

190

Criticality Safety Analysis on the Mixed Be, Nat-U, and C (Graphite) Reflectors in 55-Gallon Waste Drums and Their Equivalents for HWM Applications  

SciTech Connect (OSTI)

The objective of this analysis is to develop and establish the technical basis on the criticality safety controls for the storage of mixed beryllium (Be), natural uranium (Nat-U), and carbon (C)/graphite reflectors in 55-gallon waste containers and/or their equivalents in Hazardous Waste Management (HWM) facilities. Based on the criticality safety limits and controls outlined in Section 3.0, the operations involving the use of mixed-reflector drums satisfy the double-contingency principle as required by DOE Order 420.1 and are therefore criticality safe. The mixed-reflector mass limit is 120 grams for each 55-gallon drum or its equivalent. a reflector waiver of 50 grams is allowed for Be, Nat-U, or C/graphite combined. The waived reflectors may be excluded from the reflector mass calculations when determining if a drum is compliant. The mixed-reflector drums are allowed to mix with the typical 55-gallon one-reflector drums with a Pu mass limit of 120 grams. The fissile mass limit for the mixed-reflector container is 65 grams of Pu equivalent each. The corresponding reflector mass limits are 300 grams of Be, and/or 100 kilograms of Nat-U, and/or 110 kilograms of C/graphite for each container. All other unaffected control parameters for the one-reflector containers remain in effect for the mixed-reflector drums. For instance, Superior moderators, such as TrimSol, Superla white mineral oil No. 9, paraffin, and polyethylene, are allowed in unlimited quantities. Hydrogenous materials with a hydrogen density greater than 0.133 gram/cc are not allowed. Also, an isolation separation of no less than 76.2 cm (30-inch) is required between a mixed array and any other array. Waste containers in the action of being transported are exempted from this 76.2-cm (30-inch) separation requirement. All deviations from the CS controls and mass limits listed in Section 3.0 will require individual criticality safety analyses on a case-by-case basis for each of them to confirm their criticality safety prior to their deployment and implementation.

Chou, P

2011-12-14T23:59:59.000Z

191

Reflector Technology Development and System Design for Concentrating Solar Power Technologies  

SciTech Connect (OSTI)

Alcoa began this program in March of 2008 with the goal of developing and validating an advanced CSP trough design to lower the levelized cost of energy (LCOE) as compared to existing glass based, space-frame trough technology. In addition to showing a pathway to a significant LCOE reduction, Alcoa also desired to create US jobs to support the emerging CSP industry. Alcoa's objective during Phase I: Concept Feasibility was to provide the DOE with a design approach that demonstrates significant overall system cost savings without sacrificing performance. Phase I consisted of two major tasks; reflector surface development and system concept development. Two specific reflective surface technologies were investigated, silver metallized lamination, and thin film deposition both applied on an aluminum substrate. Alcoa prepared samples; performed test validation internally; and provided samples to the NREL for full-spectrum reflectivity measurements. The final objective was to report reflectivity at t = 0 and the latest durability results as of the completion of Phase 1. The target criteria for reflectance and durability were as follows: (1) initial (t = 0), hemispherical reflectance >93%, (2) initial spectral reflectance >90% for 25-mrad reading and >87% for 7-mrad reading, and (3) predicted 20 year durability of less than 5% optical performance drop. While the results of the reflective development activities were promising, Alcoa was unable to down-select on a reflective technology that met the target criteria. Given the progress and potential of both silver film and thin film technologies, Alcoa continued reflector surface development activities in Phase II. The Phase I concept development activities began with acquiring baseline CSP system information from both CSP Services and the DOE. This information was used as the basis to develop conceptual designs through ideation sessions. The concepts were evaluated based on estimated cost and high-level structural performance. The target criteria for the concept development was to achieve a solar field cost savings of 25%-50% thereby meeting or exceeding the DOE solar field cost savings target of $350/m2. After evaluating various structural design approaches, Alcoa down-selected to a monocoque, dubbed Wing Box, design that utilizes the reflective surface as a structural, load carrying member. The cost and performance potential of the Wing Box concept was developed via initial finite element analysis (FEA) and cost modeling. The structural members were sized through material utilization modeling when subjected to representative loading conditions including wind loading. Cost modeling was utilized to refine potential manufacturing techniques that could be employed to manufacture the structural members. Alcoa concluded that an aluminum intensive collector design can achieve significant cost savings without sacrificing performance. Based on the cost saving potential of this Concept Feasibility study, Alcoa recommended further validation of this CSP approach through the execution of Phase II: Design and Prototype Development. Alcoa Phase II objective was to provide the DOE with a validated CSP trough design that demonstrates significant overall system cost savings without sacrificing performance. Phase II consisted of three major tasks; Detail System Design, Prototype Build, and System Validation. Additionally, the reflector surface development that began in Phase I was continued in Phase II. After further development work, Alcoa was unable to develop a reflective technology that demonstrated significant performance or cost benefits compared to commercially available CSP reflective products. After considering other commercially available reflective surfaces, Alcoa selected Alano's MIRO-SUN product for use on the full scale prototype. Although MIRO-SUN has a lower specular reflectivity compared to other options, its durability in terms of handling, cleaning, and long-term reflectivity was deemed the most important attribute to successfully validate Alcoa's advanced trough archi

Adam Schaut

2011-12-30T23:59:59.000Z

192

Midtemperature Solar Systems Test Facility predictions for thermal performance of the Solar Kinetics T-700 solar collector with FEK 244 reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions are presented for the Solar Kinetics T-700 solar collector, with FEK 244 reflector surface, for three output temperatures at five cities in the United States.

Harrison, T.D.

1980-11-01T23:59:59.000Z

193

Midtemperature solar systems test facility predictions for thermal performance based on test data. Toltec two-axis tracking solar collector with 3M acrylic polyester film reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions based on test data are presented for the Toltec solar collector, with acrylic film reflector surface, for three output temperatures at five cities in the United States.

Harrison, T.D.

1981-06-01T23:59:59.000Z

194

Midtemperature solar systems test facility predictions for thermal performance based on test data. Polisolar Model POL solar collector with glass reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions based on test data are presented for the Polisolar Model POL solar collector, with glass reflector surfaces, for three output temperatures at five cities in the United States.

Harrison, T.D.

1981-05-01T23:59:59.000Z

195

Effect of antimony nano-scale surface-structures on a GaSb/AlAsSb distributed Bragg reflector  

SciTech Connect (OSTI)

Effects of antimony crystallization on the surface of GaSb during low temperature molecular beam epitaxy growth are investigated. The geometry of these structures is studied via transmission electron and atomic force microscopies, which show the surface metal forms triangular-shaped, elongated nano-wires with a structured orientation composed entirely of crystalline antimony. By depositing antimony on a GaSb/AlAsSb distributed Bragg reflector, the field is localized within the antimony layer. Polarization dependent transmission measurements are carried out on these nano-structures deposited on a GaSb/AlAsSb distributed Bragg reflector. It is shown that the antimony-based structures at the surface favor transmission of light polarized perpendicular to the wires.

Husaini, S.; Shima, D.; Ahirwar, P.; Rotter, T. J.; Hains, C. P.; Dang, T.; Bedford, R. G.; Balakrishnan, G. [Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Dayton, OH 45433 (United States)] [Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Dayton, OH 45433 (United States)

2013-02-11T23:59:59.000Z

196

Impact of strongly absorbing experiments in the HFIR reflector on control plate strength  

SciTech Connect (OSTI)

Several improvements in the experimental irradiation facilities of the High-Flux Isotope Reactor (HFIR) were incorporated at the time of its restart in 1989 in order to enhance its capabilities for materials irradiations. One improvement that is of particular interest in regard to its impact on the reactor`s nuclear characteristics is the increase in number and size of the larger irradiation holes in the HFIR`s removable beryllium reflector (RB). A principal use for these larger-diameter holes has been to accommodate spectrally tailored materials irradiations where fast neutron reactions are of principal interest and the suppression of thermal neutron reactions is important to the interpretation of the results. Such experiments typically require thermal neutron-absorbing shrouds around the experimental capsules. Reactor operation with strong thermal neutron absorbers directly outboard of the control elements has significant impact on core power distribution, cycle length, control rod worths, and on other experimental facilities nearby. This paper specifically discusses the impacts on control rod strength due to the strong localized thermal neutron absorbers.

Rothrock, R.B. [Oak Ridge National Lab., TN (United States)

1998-09-01T23:59:59.000Z

197

Monte Carlo analysis of a monolithic interconnected module with a back surface reflector  

SciTech Connect (OSTI)

Recently, the photon Monte Carlo code, RACER-X, was modified to include wave-length dependent absorption coefficients and indices of refraction. This work was done in an effort to increase the code`s capabilities to be more applicable to a wider range of problems. These new features make RACER-X useful for analyzing devices like monolithic interconnected modules (MIMs) which have etched surface features and incorporates a back surface reflector (BSR) for spectral control. A series of calculations were performed on various MIM structures to determine the impact that surface features and component reflectivities have on spectral utilization. The traditional concern of cavity photonics is replaced with intra-cell photonics in the MIM design. Like the cavity photonic problems previously discussed, small changes in optical properties and/or geometry can lead to large changes in spectral utilization. The calculations show that seemingly innocuous surface features (e.g., trenches and grid lines) can significantly reduce the spectral utilization due to the non-normal incident photon flux. Photons that enter the device through a trench edge are refracted onto a trajectory where they will not escape. This leads to a reduction in the number of reflected below bandgap photons that return to the radiator and reduce the spectral utilization. In addition, trenches expose a lateral conduction layer in this particular series of calculations which increase the absorption of above bandgap photons in inactive material.

Ballinger, C.T.; Charache, G.W. [Lockheed Martin Corp., Schenectady, NY (United States); Murray, C.S. [Bettis Atomic Power Lab., West Mifflin, PA (United States)

1998-10-01T23:59:59.000Z

198

Non-astigmatic imaging with matched pairs of spherically bent reflectors  

DOE Patents [OSTI]

Arrangements for the point-to-point imaging of a broad spectrum of electromagnetic radiation and ultrasound at large angles of incidence employ matched pairs of spherically bent reflectors to eliminate astigmatic imaging errors. Matched pairs of spherically bent crystals or spherically bent multi-layers are used for X-rays and EUV radiation; and matched pairs of spherically bent mirrors that are appropriate for the type of radiation are used with microwaves, infrared and visible light, or ultrasound. The arrangements encompass the two cases, where the Bragg angle--the complement to the angle of incidence in optics--is between 45.degree. and 90.degree. on both crystals/mirrors or between 0.degree. and 45.degree. on the first crystal/mirror and between 45.degree. and 90.degree. on the second crystal/mirror, where the angles of convergence and divergence are equal. For x-rays and EUV radiation, also the Bragg condition is satisfied on both spherically bent crystals/multi-layers.

Bitter, Manfred Ludwig (Princeton, NJ); Hill, Kenneth Wayne (Plainsboro, NJ); Scott, Steven Douglas (Wellesley, MA); Feder, Russell (Newton, PA); Ko, Jinseok (Cambridge, MA); Rice, John E. (N. Billerica, MA); Ince-Cushman, Alexander Charles (New York, NY); Jones, Frank (Manalapan, NJ)

2012-07-10T23:59:59.000Z

199

Feasibility of microwave-produced Bragg reflector: Examined by the chamber experiment  

SciTech Connect (OSTI)

A set of parallel plasma layers is generated by two intersecting microwave pulses in a chamber containing dry air at a pressure comparable to the upper atmosphere. The dependencies of breakdown conditions on the pressure and pulse length are examined. The results are shown to be consistent with the appearance of tad erosion of microwave pulse caused by air breakdown. A Bragg scattering experiment, using the plasma layers as a Bragg reflector is then performed. Both time domain and frequency domain measurements of wave scattering are conducted. ne experiment results are found to agree very well with the theory. Moreover, the time domain measurement of wave scattering provides an unambiguous way for determining the temporal evolution of electron density during the first IMP period. A Langmuir double probe is also used to determine the decay rate of electron density during a later time interval (I ms to 1.1 ms). The propagation of high power microwave pulses through the air is also studied experimentally. The mechanisms responsible for two different degree of tail erosion have been identified. The optimum amplitude of an 1. 1us pulse for maximum energy transfer through the air has been determined.

Kuo, S.P.; Zhang, Y.S.

1990-10-01T23:59:59.000Z

200

Searching for optimal mitigation geometries for laser-resistant multilayer high-reflector coatings  

SciTech Connect (OSTI)

Growing laser damage sites on multilayer high-reflector coatings can limit mirror performance. One of the strategies to improve laser damage resistance is to replace the growing damage sites with predesigned benign mitigation structures. By mitigating the weakest site on the optic, the large-aperture mirror will have a laser resistance comparable to the intrinsic value of the multilayer coating. To determine the optimal mitigation geometry, the finite-difference time-domain method was used to quantify the electric-field intensification within the multilayer, at the presence of different conical pits. We find that the field intensification induced by the mitigation pit is strongly dependent on the polarization and the angle of incidence (AOI) of the incoming wave. Therefore, the optimal mitigation conical pit geometry is application specific. Furthermore, our simulation also illustrates an alternative means to achieve an optimal mitigation structure by matching the cone angle of the structure with the AOI of the incoming wave, except for the p-polarized wave at a range of incident angles between 30 deg. and 45 deg.

Qiu, S. Roger; Wolfe, Justin E.; Monterrosa, Anthony M.; Feit, Michael D.; Pistor, Thomas V.; Stolz, Christopher J.

2011-03-20T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Graphite and Beryllium Reflector Critical Assemblies of UO2 (Benchmark Experiments 2 and 3)  

SciTech Connect (OSTI)

INTRODUCTION A series of experiments was carried out in 1962-65 at the Oak Ridge National Laboratory Critical Experiments Facility (ORCEF) for use in space reactor research programs. A core containing 93.2 wt% enriched UO2 fuel rods was used in these experiments. The first part of the experimental series consisted of 252 tightly-packed fuel rods (1.27-cm triangular pitch) with graphite reflectors [1], the second part used 252 graphite-reflected fuel rods organized in a 1.506-cm triangular-pitch array [2], and the final part of the experimental series consisted of 253 beryllium-reflected fuel rods in a 1.506-cm-triangular-pitch configuration and in a 7-tube-cluster configuration [3]. Fission rate distribution and cadmium ratio measurements were taken for all three parts of the experimental series. Reactivity coefficient measurements were taken for various materials placed in the beryllium reflected core. All three experiments in the series have been evaluated for inclusion in the International Reactor Physics Experiment Evaluation Project (IRPhEP) [4] and the International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbooks, [5]. The evaluation of the first experiment in the series was discussed at the 2011 ANS Winter meeting [6]. The evaluations of the second and third experiments are discussed below. These experiments are of interest as benchmarks because they support the validation of compact reactor designs with similar characteristics to the design parameters for a space nuclear fission surface power systems [7].

Margaret A. Marshall; John D. Bess

2012-11-01T23:59:59.000Z

202

Ceramic Mugs & Dishes Incandescent Light Bulbs  

E-Print Network [OSTI]

, MU East Rock Hall/19-B CELL PHONES - EYEGLASSES 654 Minnesota Street Room 208, copy room CVRI Helen. Zion Cancer Research Building N423 Parnassus Campus: eyeglasses "I" level, Optometry Store, MU West

Yamamoto, Keith

203

Energy-Saving Incandescents | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelinesProvedDecember 2005DepartmentDecember 2011District |Department

204

Energy-Saving Incandescents | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: TopEnergyIDIQBusinessinSupporting JobsClean EnergyAcross U.S. Industry

205

1 5-9.2002 . We report the core and reflector design parameters of reactor PIK needed for neutronic calculations.  

E-Print Network [OSTI]

PIK, needed for the reactor neutronic calculation. All up-to-date design modifications are taken√∑√≤√•√≠√Ľ √Į√ģ√Ī√ę√•√§√≠√®√• √®√ß√¨√•√≠√•√≠√®√Ņ √Ę √™√ģ√≠√Ī√≤√į√≥√™√∂√®√®. Abstract We report the core and reflector design parameters of reactor PIK needed for neutronic calculations. The recent changes are taken into account. √Ź√į√•√Į√į√®√≠√≤ ¬Ļ2472, 12

Titov, Anatoly

206

The effects of supply harmonics on the performance of compact fluorescent lamps  

SciTech Connect (OSTI)

This paper describes a performance evaluation of ten compact fluorescent lighting systems operated with sinusoidal and distorted voltage waveform conditions. The lamps were either provided with an electronic ballast, a magnetic core ballast or a magnetic core ballast with a power factor correction circuit. The test results show that the electrical performance of the compact fluorescent lamps for both sinusoidal and distorted voltage waveform operation is related to the different types of ballast used. The cost of operation of these compact fluorescent lamps was calculated and compared to the cost of a conventional 60 W incandescent lamp.

Arseneau, R.; Ouellette, M.

1993-04-01T23:59:59.000Z

207

Broadband absorption enhancement in ultra-thin crystalline Si solar cells by incorporating metallic and dielectric nanostructures in the back reflector  

E-Print Network [OSTI]

We propose a back-reflecting scheme in order to enhance the maximum achievable current in one micron thick crystalline silicon solar cells. We perform 3-dimensional numerical investigations of the scattering properties of metallic nanostructures located at the back side, and optimize them for enhancing absorption in the silicon layer. We validate our numerical results experimentally and also compare the absorption enhancement in the solar cell structure, both with quasi-periodic and random metallic nanostructures. We have looked at the interplay between the metallic nanostructures and an integrated back-reflector. We show that the combination of metallic nanoparticles and a metallic reflector results in significant parasitic absorption. We compared this to another implementation based on titanium dioxide nanoparticles which act as a lambertian reflector of light. Our simulation and experimental results show that this proposed configuration results in reduced absorption losses and in broadband enhancement of a...

Jain, Samart; Miljkovic, Vladimir D; Dmitriev, Alexamder; Trompoukis, Christos; Gordon, Ivan; van Dorpe, Pol; Daif, Ounsi El

2013-01-01T23:59:59.000Z

208

Effect of non-uniform slow wave structure in a relativistic backward wave oscillator with a resonant reflector  

SciTech Connect (OSTI)

This paper provides a fresh insight into the effect of non-uniform slow wave structure (SWS) used in a relativistic backward wave oscillator (RBWO) with a resonant reflector. Compared with the uniform SWS, the reflection coefficient of the non-uniform SWS is higher, leading to a lower modulating electric field in the resonant reflector and a larger distance to maximize the modulation current. Moreover, for both types of RBWOs, stronger standing-wave field takes place at the rear part of the SWS. In addition, besides Cerenkov effects, the energy conversion process in the RBWO strongly depends on transit time effects. Thus, the matching condition between the distributions of harmonic current and standing wave field provides a profound influence on the beam-wave interaction. In the non-uniform RBWO, the region with a stronger standing wave field corresponds to a higher fundamental harmonic current distribution. Particle-in-cell simulations show that with a diode voltage of 1.02 MV and beam current of 13.2 kA, a microwave power of 4 GW has been obtained, compared to that of 3 GW in the uniform RBWO.

Chen, Changhua; Xiao, Renzhen; Sun, Jun; Song, Zhimin; Huo, Shaofei; Bai, Xianchen; Shi, Yanchao; Liu, Guozhi [Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an 710024 (China)] [Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an 710024 (China)

2013-11-15T23:59:59.000Z

209

DuraLamp USA: Order (2010-CE-0912)  

Broader source: Energy.gov [DOE]

DOE ordered DuraLamp USA, Inc. to pay a $2,500 civil penalty after finding DuraLamp USA had failed to certify that model PAR 30, an incandescent reflector lamp, complies with the applicable energy conservation standards.

210

Westinghouse Lighting: Proposed Penalty (2010-CE-09/1001)  

Broader source: Energy.gov [DOE]

DOE alleged in a Notice of Proposed Civil Penalty that Westinghouse Lighting Corporation failed to certify various flourescent and incandescent reflector lamps as compliant with the applicable energy conservation standards.

211

Westinghouse Lighting: Order (2010-CE-09/1001)  

Broader source: Energy.gov [DOE]

DOE ordered Westinghouse Lighting Corporation to pay a $50,000 civil penalty after finding Westinghouse Lighting had failed to certify that certain models of general service flourescent and incandescent reflector lamps comply with the applicable energy conservation standards.

212

CX-010755: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Final Rule to Exempt 100 Watt R20 Short Incandescent Reflector Lamps from Energy Conversion Standards CX(s) Applied: A5 Date: 08/02/2013 Location(s): Nationwide Offices(s): Golden Field Office

213

DOE Publishes Final Rule for the Request for Exclusion of 100...  

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

the Request for Exclusion of 100 Watt R20 Short Incandescent Reflector Lamps from Energy Conservation Standards DOE Publishes Final Rule for the Request for Exclusion of 100 Watt...

214

Trojan: Order (2011-CE-2704)  

Broader source: Energy.gov [DOE]

DOE ordered Trojan, Inc. to pay a $6,000 civil penalty after finding Trojan had failed to certify that certain models of incandescent reflector lamps comply with the applicable energy conservation standards.

215

Topstar International: Order (2011-CE-2703)  

Broader source: Energy.gov [DOE]

DOE ordered Topstar International, Inc. to pay a $6,000 civil penalty after finding Topstar International had failed to certify that certain models of incandescent reflector lamps comply with the applicable energy conservation standards.

216

CX-010744: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Final Rule to Exempt 100 Watt R20 Short Incandescent Reflector Lamps from Energy Conversion Standards CX(s) Applied: A5 Date: 08/02/2013 Location(s): Nationwide Offices(s): Golden Field Office

217

EiKO: Order (2011-CE-2702)  

Broader source: Energy.gov [DOE]

DOE ordered EiKO Ltd. - North America to pay a $6,000 civil penalty after finding EiKO had failed to certify that certain models of incandescent reflector lamps comply with the applicable energy conservation standards.

218

Energy-efficient compact screw-in fluorescent lamp. Final report  

SciTech Connect (OSTI)

A compact fluorescent lamp has been designed and constructed which can replace an incandescent lamp. The lamp is slightly larger than a standard lamp (8 3/4 in. x 3 1/4 in.), but is designed to fit a majority of portable lamp applications. This version, with a core-coil ballast, results in a system efficacy of 54 lumens per watt, with a light output of more than 1800 lumens. This compares favorably with a 100-watt incandescent (17.5 lumens per watt and 1750 lumens light output). The color temperature of 3000/sup 0/K is compatible with an incandescent lamp (2800/sup 0/K). The color rendition index (CRI) is 84. With a solid-state ballast, the efficacy and light output could be increased by 20% (65 l/w, 2200 lumens) and could provide a direct replacement for a three-way, 150-watt incandescent lamp (15 l/w, 2200 lumens).

Morton, E.W.

1982-11-01T23:59:59.000Z

219

Vertical cavity surface emitting laser emitting at 1.56 microns with AlGaAsSb/AlAsSb distributed Bragg reflectors  

SciTech Connect (OSTI)

The authors report 77K operation of an optically pumped vertical cavity surface emitting laser with an Sb-based cavity. The structure consists of 15 and 20 pair AlGaAsSb/AlAsSb top and bottom reflectors and a bulk InGaAs active region.

Blum, O.; Klem, J.F.; Lear, K.L.; Vawter, G.A.; Kurtz, S.R.

1998-07-01T23:59:59.000Z

220

Midtemperature Solar Systems Test Facility predictions for thermal performance based on test data: Custom Engineering trough with glass reflector surface and Sandia-designed receivers  

SciTech Connect (OSTI)

Thermal performance predictions based on test data are presented for the Custom Engineering trough and Sandia-designed receivers, with glass reflector surface, for three output temperatures at five cities in the United States. Two experimental receivers were tested, one with an antireflective coating on the glass envelope around the receiver tube and one without the antireflective coating.

Harrison, T.D.

1981-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Efficient directional spontaneous emission from an InGaAs/InP heterostructure with an integral parabolic reflector  

SciTech Connect (OSTI)

In order to increase the radiative efficiency and directivity of spontaneous emission from a lattice-matched InGaAs/InP heterostructure, we have polished the substrate into a parabolic reflector. We combine optical and thermal measurements to obtain the absolute external efficiency over a wide range of carrier densities. Using a simple model, the measurement is used to determine interface, radiative, and Auger recombination rates in the active material. At the optimal density, the quantum efficiency exceeds 60{percent} at room temperature. The divergence of the emitted light is less than 20{degree}. In fact, the beam profile is dominated by a 6{degree} wide lobe that can be swept across the field of emission by changing the excitation position. This suggests a way to create an all-electronic scanned light beam. {copyright} {ital 1998 American Institute of Physics.}

Gfroerer, T.H.; Cornell, E.A. [JILA, National Institute of Standards and Technology and University of Colorado, and Department of Physics, University of Colorado, Boulder, Colorado, 80309-0440 (United States)] [JILA, National Institute of Standards and Technology and University of Colorado, and Department of Physics, University of Colorado, Boulder, Colorado, 80309-0440 (United States); Wanlass, M.W. [National Renewable Energy Laboratory, Golden, Colorado, 80401 (United States)] [National Renewable Energy Laboratory, Golden, Colorado, 80401 (United States)

1998-11-01T23:59:59.000Z

222

Electromagnetic modeling of the energy distribution of a metallic cylindrical parabolic reflector covered with a magnetized plasma layer  

SciTech Connect (OSTI)

The energy distribution along the focal axis of a long metallic cylindrical parabolic reflector with a plasma layer on its surface in the presence of an external magnetic field is investigated. The effects of some physical parameters, such as the plasma frequency, the wave frequency and the thickness of plasma layer on the energy distribution and the reflected and transmitted electromagnetic fields, are simulated. These investigations for both S- and P-polarizations have been done separately. It is found that the maximum value of the reflected intensity increases by increasing the incident wave frequency and by decreasing the plasma layer thickness and the plasma frequency for both polarizations. Furthermore, the results show that the increase of the magnetic field strength can cause an increase in the reflected intensity for S-polarization and a slight decrease for P-polarization.

Niknam, A. R., E-mail: a-niknam@sbu.ac.ir; Khajehmirzaei, M. R. [Laser and Plasma Research Institute, Shahid Beheshti University, GC, Tehran (Iran, Islamic Republic of); Davoudi-Rahaghi, B.; Rahmani, Z.; Jazi, B.; Abdoli-Arani, A. [Department of Laser and Photonics, Faculty of Physics, University of Kashan, Kashan (Iran, Islamic Republic of)

2014-07-15T23:59:59.000Z

223

STARTUP REACTIVITY ACCOUNTABILITY ATTRIBUTED TO ISOTOPIC TRANSMUTATIONS IN THE IRRADIATED BERYLLIUM REFLECTOR OF THE HIGH FLUX ISTOTOPE REACTOR  

SciTech Connect (OSTI)

The objective of this study is to develop a methodology to predict the reactivity impact as a function of outage time between cycles of 3He, 6Li, and other poisons in the High Flux Isotope Reactor s (HFIR) beryllium reflector. The reactivity worth at startup of the HFIR has been incorrectly predicted in the past after the reactor has been shut-down for long periods of time. The incorrect prediction was postulated to be due to the erroneous calculation of 3He buildup in the beryllium reflector. It is necessary to develop a better estimate of the start-of-cycle symmetric critical control element positions since if the estimated and actual symmetrical critical control element positions differ by more than $1.55 in reactivity (approximately one-half inch in control element startup position), HFIR is to be shutdown and a technical evaluation is performed to resolve the discrepancy prior to restart. 3He is generated and depleted during operation, but during an outage, the depletion of 3He ceases because it is a stable isotope. 3He is born from the radioactive decay of tritium, and thus the concentration of 3He increases during shutdown. The computer program SCALE, specifically the TRITON and CSAS5 control modules including the KENO V.A, COUPLE, and ORIGEN functional modules were utilized in this study. An equation relating the down time (td) to the change in symmetric control element position was generated and validated against measurements for approximately 40 HFIR operating cycles. The newly-derived correlation was shown to improve accuracy of predictions for long periods of down time.

Chandler, David [ORNL] [ORNL; Maldonado, G Ivan [ORNL] [ORNL; Primm, Trent [ORNL] [ORNL

2010-01-01T23:59:59.000Z

224

Fully Integrated Ballast Controller with  

E-Print Network [OSTI]

for This work is co-sponsored by the National Science Foundation (under Grant No. 0348772), General Electric Colorado Power Electronics Center University of Colorado at Boulder Boulder, CO 80309-0425 regan Global Research (through CoPEC) and the Department of Energy's National Energy Technology Laboratory

225

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 1, Methodology  

SciTech Connect (OSTI)

The Energy Policy and Conservation Act (P.L. 94-163), as amended, establishes energy conservation standards for 12 of the 13 types of consumer products specifically covered by the Act. The legislation requires the Department of Energy (DOE) to consider new or amended standards for these and other types of products at specified times. DOE is currently considering amending standards for seven types of products: water heaters, direct heating equipment, mobile home furnaces, pool heaters, room air conditioners, kitchen ranges and ovens (including microwave ovens), and fluorescent light ballasts and is considering establishing standards for television sets. This Technical Support Document presents the methodology, data, and results from the analysis of the energy and economic impacts of the proposed standards. This volume presents a general description of the analytic approach, including the structure of the major models.

Not Available

1993-11-01T23:59:59.000Z

226

Midtemperature Solar Systems Test Facility predictions for thermal performance based on test data. Alpha Solarco Model 104 solar collector with 0. 125-inch Schott low-iron glass reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions based on test data are presented for the Alpha Solarco Model 104 solar collector, with 0.125-inch Schott low-iron glass reflector surface, for three output temperatures at five cities in the United States.

Harrison, T.D.

1981-04-01T23:59:59.000Z

227

Development of a straightness measurement and compensation system with multiple right-angle reflectors and a lead zirconate titanate-based compensation stage  

SciTech Connect (OSTI)

This paper presents a real-time straightness measurement and compensation system with an optical straightness measurement system and a single-axis flexure-hinge type lead zirconate titanate (PZT)-based compensation stage. The optical straightness measurement system consists of a He-Ne laser, a quadrant photodiode detector, and five right-angle reflectors. Multiple laser beam reflections between the right-angle reflectors increase the sensitivity of the straightness measurement by a factor of 6. The right-angle reflectors can be moved by the flexure-hinge type PZT-based compensation stage that is actuated by a PZT actuator to ensure that the laser beam is always projected onto the center of the quadrant detector. These two systems are integrated and fixed on a scanning stage. The resolution of the straightness measurement system is 0.1 {mu}m. Using the real-time straightness compensation system, the straightness error of the scanning stage is fed back to the control system. The compensated straightness error of the scanning stage system was reduced from 6.5 {mu}m to less than 1 {mu}m.

Liu, Chien-Hung; Chen, Jui-Hung [Institute of Electro-Optical and Materials Science, National Formosa University, Huwei, Yunlin 632, Taiwan (China); Teng, Yun-Feng [Department of Mechanical Engineering, National Chung-Cheng University, Chiayi 621, Taiwan (China)

2009-11-15T23:59:59.000Z

228

Fiber optic sensor employing successively destroyed coupled points or reflectors for detecting shock wave speed and damage location  

DOE Patents [OSTI]

A shock velocity and damage location sensor providing a means of measuring shock speed and damage location is disclosed. The sensor consists of a long series of time-of-arrival ``points`` constructed with fiber optics. The fiber optic sensor apparatus measures shock velocity as the fiber sensor is progressively crushed as a shock wave proceeds in a direction along the fiber. The light received by a receiving means changes as time-of-arrival points are destroyed as the sensor is disturbed by the shock. The sensor may comprise a transmitting fiber bent into a series of loops and fused to a receiving fiber at various places, time-of-arrival points, along the receiving fibers length. At the ``points`` of contact, where a portion of the light leaves the transmitting fiber and enters the receiving fiber, the loops would be required to allow the light to travel backwards through the receiving fiber toward a receiving means. The sensor may also comprise a single optical fiber wherein the time-of-arrival points are comprised of reflection planes distributed along the fibers length. In this configuration, as the shock front proceeds along the fiber it destroys one reflector after another. The output received by a receiving means from this sensor may be a series of downward steps produced as the shock wave destroys one time-of-arrival point after another, or a nonsequential pattern of steps in the event time-of-arrival points are destroyed at any point along the sensor. 6 figs.

Weiss, J.D.

1995-08-29T23:59:59.000Z

229

Analysis of federal policy options for improving US lighting energy efficiency: Commercial and residential buildings  

SciTech Connect (OSTI)

The US Department of Energy (DOE) has recognized the opportunity to achieve energy, economic, and environmental benefits by promoting energy-efficient lighting through federal policies, including lighting standards, financial incentives, and information programs. To assist in this process, the Office of Conservation and Renewable Energy`s Office of Codes and Standards invited Lawrence Berkeley Laboratory to assess prospective national impacts for a variety of policy options. Some progress has already been made in developing lighting policies at both the federal and state levels. The US DOE`s Office of Building Technologies has evaluated lighting efficiency incentives as part of its analysis for the National Energy Strategy. Fluorescent and incandescent lamp standards are included in the national Energy Policy Act of 1992 (P.L. 102-486, October 24, 1992). A few states have analyzed or implemented lamp and luminaire standards. Many policy-related issues merit further investigation. For example, there is considerable debate over issues such as mandatory or voluntary standards versus component labeling and other education-oriented strategies. Several different technologies are involved that interact with each other-lamps (incandescent, compact fluorescent, and HID), ballasts (for fluorescent and HID lamps), and fixtures with reflectors and lenses. Control systems and operation patterns must also be considered (timers, automated dimming, or occupancy sensors). Lighting applications are diverse, ranging from offices, restaurants, hallways, hospital operating rooms, to exterior lights. Lighting energy use influences heating and cooling requirements in buildings. Successful lighting system design must also address interactions between architectural design elements and daylighting availability. Proper system installation and ongoing operation and maintenance are crucial. The economic aspects of the preceding points must also be considered for policy making.

Atkinson, B.A.; McMahon, J.E.; Mills, E.; Chan, P.; Chan, T.W.; Eto, J.H.; Jennings, J.D.; Koomey, J.G.; Lo, K.W.; Lecar, M.; Price, L.; Rubinstein, F.; Sezgen, O.; Wenzel, T.

1992-12-01T23:59:59.000Z

230

Analysis of federal policy options for improving US lighting energy efficiency: Commercial and residential buildings  

SciTech Connect (OSTI)

The US Department of Energy (DOE) has recognized the opportunity to achieve energy, economic, and environmental benefits by promoting energy-efficient lighting through federal policies, including lighting standards, financial incentives, and information programs. To assist in this process, the Office of Conservation and Renewable Energy's Office of Codes and Standards invited Lawrence Berkeley Laboratory to assess prospective national impacts for a variety of policy options. Some progress has already been made in developing lighting policies at both the federal and state levels. The US DOE's Office of Building Technologies has evaluated lighting efficiency incentives as part of its analysis for the National Energy Strategy. Fluorescent and incandescent lamp standards are included in the national Energy Policy Act of 1992 (P.L. 102-486, October 24, 1992). A few states have analyzed or implemented lamp and luminaire standards. Many policy-related issues merit further investigation. For example, there is considerable debate over issues such as mandatory or voluntary standards versus component labeling and other education-oriented strategies. Several different technologies are involved that interact with each other-lamps (incandescent, compact fluorescent, and HID), ballasts (for fluorescent and HID lamps), and fixtures with reflectors and lenses. Control systems and operation patterns must also be considered (timers, automated dimming, or occupancy sensors). Lighting applications are diverse, ranging from offices, restaurants, hallways, hospital operating rooms, to exterior lights. Lighting energy use influences heating and cooling requirements in buildings. Successful lighting system design must also address interactions between architectural design elements and daylighting availability. Proper system installation and ongoing operation and maintenance are crucial. The economic aspects of the preceding points must also be considered for policy making.

Atkinson, B.A.; McMahon, J.E.; Mills, E.; Chan, P.; Chan, T.W.; Eto, J.H.; Jennings, J.D.; Koomey, J.G.; Lo, K.W.; Lecar, M.; Price, L.; Rubinstein, F.; Sezgen, O.; Wenzel, T.

1992-12-01T23:59:59.000Z

231

High Hats, Swiss Cheese, and Fluorescent Lighting?  

SciTech Connect (OSTI)

For DOE, PNNL is conducting a competitive procurement to promote market introduction of new residential recessed downlights (also known as ''recessed cans'' or ''high hats'') that are airtight, rated for insulated ceilings, and hard-wired for CFLs. This paper discusses the potential energy savings of new high-efficiency downlights, and the results of product testing to date. Recessed downlights are the most popular residential lighting fixtures in the United States, with 21.7 million fixtures sold in 2000. An estimated 350 million are currently installed in American homes. Recessed cans are relatively inexpensive, and provide an unobtrusive, directed source of light for kitchens, hallways, and living rooms. Recessed cans are energy-intensive in three ways. First, virtually all recessed cans currently installed in the residential sector use incandescent light sources, typically reflector-type lamps drawing 65-150 watts. Second, heat from incandescent lamps adds to air-conditioning loads. Third, most installed recessed cans are not airtight, so they allow conditioned air to escape from the living area into unconditioned spaces such as attics. Addressing both lighting energy use and air leakage in recessed cans has proven challenging. Lighting energy efficiency is greatly improved by using CFLs. Air leakage can be addressed by making fixtures airtight. But when CFLs are used in an airtight recessed can, heat generated by the lamp and ballast is trapped within the fixture. Excessive heat causes reduced light output and shorter lifespan of the CFL. The procurement was designed to overcome these technical challenges and make new products available in the marketplace.

McCullough, Jeffrey J.; Gordon, Kelly L.

2002-08-30T23:59:59.000Z

232

Pre-Retrofit Lighting Study at the University of Texas at Arlington, Texas  

E-Print Network [OSTI]

Audit Report for the site, completed in 1991, recommended a lighting retrofit that included delamping, relamping with high efficiency lamps, the installation of high efficiency electronic ballasts, and the installation of specular reflectors. However...

Houcek, J. K.; Claridge, D. E.; Haberl, J. S.

1993-01-01T23:59:59.000Z

233

Silvered polymer reflectors  

SciTech Connect (OSTI)

One of the principal objectives of the Solar Thermal Research Program is to develop silvered polymer films for constructing durable, low-cost, lightweight concentrating collectors for high temperature solar thermal systems. The mirrors are characterized for their solar-weighted (air mass 1.5) reflectance and exposed to environmental degradation. Photodegradation of polymers has also been studied using Fourier transform infrared spectroscopy supplemented with surface analysis characterization. Results are discussed for extruded films, ultraviolet effects, metallization, and the effects of polymer additives. (LEW)

Schissel, P.; Neidlinger, H.H.; Czanderna, A.W.

1985-03-01T23:59:59.000Z

234

GaInAsSb/A1GaAsSb/Sb Thermophotovoltaic Devices With an Internal Back-Surface Reflector Formed by Wafer Bonding  

SciTech Connect (OSTI)

A novel implementation for GAInAsSb/AlGaAsSb/GaSb TPV cells with an internal back-surface reflector (BSR) formed by wafer bonding to GaAs is demonstrated. The SiO{sub x}/Ti/Au internal BSR enhances optical absorption within the device, while the dielectric layer provides electrical isolation. This configuration has the potential to improve TPV device performance; is compatible with monolithic series-interconnection of TPV cells for building voltage; and can mitigate the requirements of filters used for front-surface spectral control. At a short-circuit density of 0.4 A/cm{sup 2}, the open-circuit voltage of a single TPV cell is 0.2 V, compared to 0.37 and 1.8 V for 2- and 10-junction series-interconnected TPV cells, respectively.

C.A. Wang; R.K. Huang; D.A. Shiau; M.K. Connors; P.G. Murphy; P.W. O'brien; A.C. Anderson; D.M. DePoy; G. Nichols; M.N. Palmasiano

2002-12-18T23:59:59.000Z

235

Laser damage study of nodules in electron-beam-evaporated HfO{sub 2}/SiO{sub 2} high reflectors  

SciTech Connect (OSTI)

A reactive electron beam evaporation process was used to fabricate 1.064 {mu}mHfO{sub 2}/SiO{sub 2} high reflectors. The deposition process was optimized to reduce the nodular density. Cross-sectioning of nodular defects by a focused ion-beam milling instrument showed that the nodule seeds were the residual particles on the substrate and the particulates from the silica source ''splitting.'' After optimizing the substrate preparation procedure and the evaporation process, a low nodular density of 2.7/mm{sup 2} was achieved. The laser damage test revealed that the ejection fluences and damage growth behaviors of nodules created from deep or shallow seeds were totally different. A mechanism based on directional plasma scald was proposed to interpret observed damage growth phenomenon.

Cheng Xinbin; Shen Zhengxiang; Jiao Hongfei; Zhang Jinlong; Ma Bin; Ding Tao; Lu Jiangtao; Wang Xiaodong; Wang Zhanshan

2011-03-20T23:59:59.000Z

236

ECE 466: LED Lighting Systems -Incandescent lightings rise and  

E-Print Network [OSTI]

versus cost - Power Electronic Drives for CFL and LED light sources to achieve dimmable operation - Basic electric AC and DC circuits at Sophomore level or equivalents Absolutes Lighting System Requirements index as a metric of a light source - Power Electronic Energy sources driving light sources in a compact

Schumacher, Russ

237

Underwater Lighting by Submerged Lasers and Incandescent Sources  

E-Print Network [OSTI]

books. For eX3.I11ple, equation (5.49.1) on page 107 of Glastone and Edlund's, "Elements of Nuclear Reactor

Duntley, Seibert Q

1971-01-01T23:59:59.000Z

238

How Energy-Efficient Light Bulbs Compare with Traditional Incandescents |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuidedCH2MLLC HistoryVeterans | UpdatesHowGetDoes a

239

DOE Requires Manufacturer and Labeler to Cease Sale of Incandescent  

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

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240

Fluorescent Lamp Ballasts | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat PumpRecordFederal7.pdfFlash_2010_-24.pdfOverview Flow Cells forFluorescent Lamp

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Deployable Synthetic Aperture Radar Reflector  

E-Print Network [OSTI]

) satellite. The structure consists of four cylindrical surfaces formed from thin sheets of carbon-fibre-reinforced-plastic (CFRP) connected by flexible hinges along the edges. The key to forming a cylindrical surface with any. At full scale the reflective surface will be 7.9 m long by 3.2 m wide, and it has been estimated

Pellegrino, Sergio

242

A Study of Contacts and Back-Surface Reflectors for 0.6eV Ga0.32In0.68As/InAs0.32P0.68 Thermophotovoltaic Monolithically Interconnected Modules  

SciTech Connect (OSTI)

Thermophotovoltaic (TPV) systems have recently rekindled a high level of interest for a number of applications. In order to meet the requirement of low-temperature ({approx}1000 C) TPV systems, 0.6-eV Ga0.32In0.68As/InAs0.32P0.68 TPV monolithically interconnected modules (MIMs) have been developed at the National Renewable energy Laboratory (NREL)[1]. The successful fabrication of Ga0.32In0.68As/InAs0.32P0.68 MIMs depends on developing and optimizing of several key processes. Some results regarding the chemical vapor deposition (CVD)-SiO2 insulating layer, selective chemical etch via sidewall profiles, double-layer antireflection coatings, and metallization via interconnects have previously been given elsewhere [2]. In this paper, we report on the study of contacts and back-surface reflectors. In the first part of this paper, Ti/Pd/Ag and Cr/Pd/Ag contact to n-InAs0.32P0.68and p-Ga0.32In0.68As are investigated. The transfer length method (TLM) was used for measuring of specific contact resistance Rc. The dependence of Rc on different doping levels and different pre-treatment of the two semiconductors will be reported. Also, the adhesion and the thermal stability of Ti/Pd/Ag and Cr/Pd/Ag contacts to n-InAs0.32P0.68and p-Ga0.32In0.68As will be presented. In the second part of this paper, we discuss an optimum back-surface reflector (BSR) that has been developed for 0.6-eV Ga0.32In0.68As/InAs0.32P0.68 TPV MIM devices. The optimum BSR consists of three layers: {approx}1300{angstrom} MgF2 (or {approx}1300{angstrom} CVD SiO2) dielectric layer, {approx}25{angstrom} Ti adhesion layer, and {approx}1500{angstrom} Au reflection layer. This optimum BSR has high reflectance, good adhesion, and excellent thermal stability.

Wu, X.; Duda, A.; Carapella, J. J.; Ward, J. S.; Webb, J. D.; Wanlass, M. W.

1998-12-23T23:59:59.000Z

243

Table of Contents Page i 2013 Residential Compliance Manual January 2014  

E-Print Network [OSTI]

............................................................................24 6.4.2 Incandescent Luminaires

244

Effect of the photon lifetime on the characteristics of 850-nm vertical-cavity surface-emitting lasers with fully doped distributed Bragg reflectors and an oxide current aperture  

SciTech Connect (OSTI)

The effect of the photon lifetime in an optical microcavity on the characteristics of 850-nm vertical-cavity surface-emitting lasers (VCSELs) with fully doped distributed Bragg reflectors (DBRs) and an oxide current aperture is studied. The photon lifetime in the microcavity is controlled by varying the upper DBR reflectance. It is found that the speed of VCSELs with a current-aperture diameter of 10 ?m is mainly limited by the self-heating effect, despite an increase in the relaxation-oscillation damping coefficient with increasing photon lifetime in the microcavity. At the same time, the higher level of internal optical loss in lasers with a current-aperture diameter of 1.5 ?m leads to dominance of the effect of relaxation-oscillation damping independently of the radiation output loss. In the case of devices with a current-aperture diameter of 5.5 ?m, both mechanisms limiting the speed operate, which allow an increase in the VCSEL effective modulation frequency from 21 to 24 GHz as the photon lifetime decreases from 3.7 to 0.8 ps.

Bobrov, M. A.; Blokhin, S. A., E-mail: blokh@mail.ioffe.ru; Kuzmenkov, A. G.; Maleev, N. A. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Blokhin, A. A. [Saint Petersburg State Polytechnical University (Russian Federation); Zadiranov, Yu. M. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Nikitina, E. V. [Russian Academy of Sciences, Saint Petersburg Academic UniversityóNanotechnology Research and Education Center (Russian Federation); Ustinov, V. M. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)

2014-12-15T23:59:59.000Z

245

The National Energy Policy Act and lamp replacement options  

SciTech Connect (OSTI)

The National Policy Act of 1992 involves the creation of energy efficiency standards for a wide range of products including fluorescent and incandescent lamps. Minimum efficacy (lumens per watt) and color rendering index (CRI) standards are mandated for the popular fluorescent lamps: four-foot medium bi-pin, two-foot U-bent, eight-foot slimline and eight-foot high output. Minimum efficacies are mandated for specific incandescent R and PAR reflector lamps. These standards will affect selected colors and designs of fluorescent lamps, the most significant being the standard lamps in the cool white and warm white colors. The incandescent reflector lamps will include the R-30, R-40, PAR-38 lamps above 40 watts, excluding the halogen types. These efficiency and color rendering standards will require end-users and specifiers to select replacement fluorescent lamps from a range of performance characteristics (lumen output, efficacy, CRI and price). The choice of replacement for the R and PAR incandescent lamps will include the halogen designs and compact fluorescent designs. In this paper, replacement options will be analyzed and discussed and the effect of these options on the performance of the lighting system will be explored in detail.

Ryerson, C.

1995-06-01T23:59:59.000Z

246

Compact light source performance in recessed type luminaires  

SciTech Connect (OSTI)

Photometric comparisons were made with an indoor, recessed, type luminaire using incandescent, high intensity discharge and compact fluorescent lamps. The test results show substantial performance advantages, as expected, for the discharge light sources where the efficacy gains can be in the order for 400% even when including the ballast losses associated with the discharge lamps. The candlepower distribution patterns emerging from these luminaries are also different from those associated with the baseline incandescent lamps, and which are in some ways, even more desirable from a uniformity of illuminance perspective. A section on fluorescent lamp starting is also included which describes a system having excellent starting characteristics in terms of electrode starting temperature (RH/RC technique), proper operating frequency to minimize unwanted IR interactions, and satisfactory current crest factor values to help insure life performance.

Hammer, E.E.

1998-11-01T23:59:59.000Z

247

Lighting energy management in industrial plants  

SciTech Connect (OSTI)

This paper provides some guidance to assist plant managers and engineers in managing their light energy problems. Incandescent, flourescent, and high-intensity discharge lamps are compared. Flourescent is still predominant, incandescent is not recommended-and HID is rapidly gaining favor. Lamp life and lumen depreciation must be determined. Light loss factors which are not recoverable are: luminaire ambient temperature, voltage to the luminaire, ballast factor, and luminaire surface dirt depreciation. Light loss factors which can be recovered by plant maintainence are: room surface dirt depreciation, lamp failures, lamp lumen depreciation, and luminaire dirt depreciation. A method to determine the savings that may result from group relamping versus spot replacement is given. Finally, energy management steps, to maximize performance, are listed.

Bachler, J.M.

1982-06-01T23:59:59.000Z

248

Ultraviolet GaN photodetectors on Si via oxide buffer heterostructures with integrated short period oxide-based distributed Bragg reflectors and leakage suppressing metal-oxide-semiconductor contacts  

SciTech Connect (OSTI)

Based on a novel double step oxide buffer heterostructure approach for GaN integration on Si, we present an optimized Metal-Semiconductor-Metal (MSM)-based Ultraviolet (UV) GaN photodetector system with integrated short-period (oxide/Si) Distributed Bragg Reflector (DBR) and leakage suppressing Metal-Oxide-Semiconductor (MOS) electrode contacts. In terms of structural properties, it is demonstrated by in-situ reflection high energy electron diffraction and transmission electron microscopy-energy dispersive x-ray studies that the DBR heterostructure layers grow with high thickness homogeneity and sharp interface structures sufficient for UV applications; only minor Si diffusion into the Y{sub 2}O{sub 3} films is detected under the applied thermal growth budget. As revealed by comparative high resolution x-ray diffraction studies on GaN/oxide buffer/Si systems with and without DBR systems, the final GaN layer structure quality is not significantly influenced by the growth of the integrated DBR heterostructure. In terms of optoelectronic properties, it is demonstrated thatówith respect to the basic GaN/oxide/Si system without DBRóthe insertion of (a) the DBR heterostructures and (b) dark current suppressing MOS contacts enhances the photoresponsivity below the GaN band-gap related UV cut-off energy by almost up to two orders of magnitude. Given the in-situ oxide passivation capability of grown GaN surfaces and the one order of magnitude lower number of superlattice layers in case of higher refractive index contrast (oxide/Si) systems with respect to classical III-N DBR superlattices, virtual GaN substrates on Si via functional oxide buffer systems are thus a promising robust approach for future GaN-based UV detector technologies.

Szyszka, A., E-mail: szyszka@ihp-microelectronics.com, E-mail: adam.szyszka@pwr.wroc.pl [IHP, Im Technologiepark 25, 15236 Frankfurt (Oder) (Germany); Faculty of Microsystem Electronics and Photonics, Wroclaw University of Technology, Janiszewskiego 11/17, 50-372 Wroclaw (Poland); Lupina, L.; Lupina, G.; Schubert, M. A.; Zaumseil, P. [IHP, Im Technologiepark 25, 15236 Frankfurt (Oder) (Germany); Haeberlen, M.; Storck, P.; Thapa, S. B. [Siltronic, Hanns-Seidel-Platz 4, 81737 MŁnchen (Germany); Schroeder, T. [IHP, Im Technologiepark 25, 15236 Frankfurt (Oder) (Germany); BTU Cottbus-Senftenberg, Konrad-Zuse-Strasse 1, 03046 Cottbus (Germany)

2014-08-28T23:59:59.000Z

249

Comprehensive Pyrometry of Incandescent Multiwalled Carbon Nanotubes and Graphene in the Visible and Near Infrared  

E-Print Network [OSTI]

E. Pop, ďInfrared Microscopy of Joule Heating in Graphenenear infrared is attainable through gating and heating of

Singer, Scott

2012-01-01T23:59:59.000Z

250

A calibration-independent laser-induced incandescence technique for soot measurement  

E-Print Network [OSTI]

@nrc.ca), and F. Liu (fèngshan.liu@nrc.ca) are with The Institute for Chemical Process and Environmental levels of particulate matter exacerbates several pulmonary diseases, including asthma, bronchitis is a serious environmental pollutant and a health risk. To assist policy markers in regulating particulate

G√ľlder, √?mer L.

251

Aerosol Mass Spectrometry via Laser-Induced Incandescence Particle Vaporization Final Report  

SciTech Connect (OSTI)

We have successfully developed and commercialized a soot particle aerosol mass spectrometer (SP-AMS) instrument to measure mass, size, and chemical information of soot particles in ambient environments. The SP-AMS instrument has been calibrated and extensively tested in the laboratory and during initial field studies. The first instrument paper describing the SP-AMS has been submitted for publication in a peer reviewed journal and there are several related papers covering initial field studies and laboratory studies that are in preparation. We have currently sold 5 SP-AMS instruments (either as complete systems or as SP modules to existing AMS instrument operators).

Timothy B. Onasch

2011-10-20T23:59:59.000Z

252

Comprehensive Pyrometry of Incandescent Multiwalled Carbon Nanotubes and Graphene in the Visible and Near Infrared  

E-Print Network [OSTI]

of 1990 (ITS-90). ,Ē Metrologia, vol. 27, p. 3, Mar. 1990. [Wavelength Pyrometry,Ē Metrologia, vol. 17, p. 103, 1981. [

Singer, Scott

2012-01-01T23:59:59.000Z

253

Peak Power Reduction Strategies for the Lighting Systems in Government Buildings  

E-Print Network [OSTI]

PEAK POWER REDUCTION STRATEGIES FOT THE LIGHTING SYSTEMS IN GOVERNMENT BUILDINGS Dina AlNakib CLEP, Dr. Ahmad Al-Mulla CEM, Gopal Maheshwari Department of Building and Energy Technologies Environment and Urban Development Division Kuwait... begins at 7:30 h and ends between 14:00 and 15:30 h. Lighting systems in MC building comprise mostly of T12 fluorescent tubes with magnetic ballasts, compact fluorescent lamps (CFLs) and incandescent lamps with a total connected load of 2,900 k...

Al-Nakib, D.; Al-Mulla, A. A.; Maheshwari, G. P.

2010-01-01T23:59:59.000Z

254

Advances in Lighting  

E-Print Network [OSTI]

colour rendition. The quartz-halogen incandescent lam s operate at higher temperatures, and have a somewhat higher efficacy, but they are rarely used except for special applicati ns. 3-2 High Intensity Discharge Lamps. Mercury is the grandfather... of the H.I.D. lamps. Its blue-green light, has been used almost exclusively for streetlighti and, often with colour-improving phospho it is still being used in industrial and commercial applications. Reactor-type ballasted mercury lamps can now...

Tumber, A. J.

1981-01-01T23:59:59.000Z

255

Power Quality Improvements in Lighting Systems Mr. Ashish Shrivastava  

E-Print Network [OSTI]

from early incandescent lamps to present generation light emitting diodes (LEDs). Incandescent light

Kumar, M. Jagadesh

256

Assessing the Performance of 5mm White LED Light Sources for Developing-Country Applications  

E-Print Network [OSTI]

performance variations. Incandescent and fluorescent lightbetter than the common incandescent lamp. Off-grid lighting

Mills, Evan

2007-01-01T23:59:59.000Z

257

Feature scaling of large, ballasted, field emission arrays  

E-Print Network [OSTI]

Field emitters are an exciting technology for high-frequency, high-power applications because of their excellent free space electron transport, and their potential for high current density and high current, especially when ...

Guerrera, Stephen A. (Stephen Angelo)

2011-01-01T23:59:59.000Z

258

Project Profile: Innovative Ballasted Flat Roof Solar Photovoltaic...  

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

alone cost about 0.95 per watt for rooftop installations. Cascade is developing a plastic-based photovoltaic (PV) racking system that reduces mechanical and electrical labor,...

259

Performance of Geogrid Reinforced Ballast under Dynamic Loading  

E-Print Network [OSTI]

string pot versus dynamic loading at 1100 psi (9 psi tie bearing pressure) 37 4.1.3 East string pot versus dynamic loading at 2500 psi (21 psi tie bearing pressure) 38 4.1.4 East string pot versus dynamic loading at 3500 psi (31 psi tie bearing pressure...) 39 4.1.5 East string pot versus dynamic loading at 4500 psi (38 psi tie bearing pressure) 41 4.1.6 East string pot versus dynamic loading at 4500 psi (soaked) (40 psi tie bearing pressure) 43 4.2 Unreinforced test 45 4.2.1 West string pot 45 4...

Jowkar, Milad

2011-12-31T23:59:59.000Z

260

Metal Halide Lamp Ballast and Fixture | Department of Energy  

Energy Savers [EERE]

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Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Project Profile: Innovative Ballasted Flat Roof Solar Photovoltaic Racking  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309DepartmentDepartment ofCycles |PerovskitesSystem |

262

Covered Product Category: Fluorescent Ballasts | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: Top FiveDepartmentfor EngineeringDepartment ofBoilersData CenterDepartment

263

Optical Reflectance Measurements for Commonly Used Reflectors  

E-Print Network [OSTI]

AC02-05CH11231, grant number NNSA LB06-316-PD05 / NN2001000.AC02-05CH11231, grant number NNSA LB06-316-PD05 / NN2001000.

Janecek, Petr Martin

2009-01-01T23:59:59.000Z

264

Ideal light concentrators with reflector gaps  

SciTech Connect (OSTI)

A cylindrical or trough-like radiant energy concentration and collection device is provided. The device includes an energy absorber, a glazing enveloping the absorber and a reflective wall. The ideal contour of the reflective wall is determined with reference to a virtual absorber and not the actual absorber cross section.

Winston, R.

1980-10-28T23:59:59.000Z

265

Solar module having reflector between cells  

DOE Patents [OSTI]

A photovoltaic module comprising an array of electrically interconnected photovoltaic cells disposed in a planar and mutually spaced relationship between a light-transparent front cover member in sheet form and a back sheet structure is provided with a novel light-reflecting means disposed between adjacent cells for reflecting light falling in the areas between cells back toward said transparent cover member for further internal reflection onto the solar cells. The light-reflecting comprises a flexible plastic film that has been embossed so as to have a plurality of small V-shaped grooves in its front surface, and a thin light-reflecting coating on said front surface, the portions of said coating along the sides of said grooves forming light-reflecting facets, said grooves being formed so that said facets will reflect light impinging thereon back into said transparent cover sheet with an angle of incidence greater than the critical angle, whereby substantially all of the reflected light will be internally reflected from said cover sheet back to said solar modules, thereby increasing the current output of the module.

Kardauskas, Michael J. (Billerica, MA)

1999-01-01T23:59:59.000Z

266

Correlated-Intensity velocimeter for Arbitrary Reflector  

DOE Patents [OSTI]

A velocimetry apparatus and method comprising splitting incoming reflected laser light and directing the laser light into first and second arms, filtering the laser light with passband filters in the first and second arms, one having a positive passband slope and the other having a negative passband slope, and detecting the filtered laser light via light intensity detectors following the passband filters in the first and second arms

Wang, Zhehui (Los Alamos, NM); Luo, Shengnian (Los Alamos, NM); Barnes, Cris W. (Arlington, VA); Paul, Stephen F. (West Orange, NJ)

2008-11-11T23:59:59.000Z

267

Optical Reflectance Measurements for Commonly Used Reflectors  

E-Print Network [OSTI]

by the National Nuclear Security Administration, Office ofby the National Nuclear Security Administration, Office of

Janecek, Petr Martin

2009-01-01T23:59:59.000Z

268

Ideal light concentrators with reflector gaps  

SciTech Connect (OSTI)

A cylindrical or trough-like radiant energy concentration and collection device is provided. The device includes an energy absorber, a glazing enveloping the absorber and a reflective wall. The ideal contour of the reflective wall is determined with reference to a virtual absorber and not the actual absorber cross section.

Winston, Roland (Chicago, IL)

1980-01-01T23:59:59.000Z

269

The Sandia Wave Reflector - Energy Innovation Portal  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2 andThe MolecularPlaceThe Road toCatalysts:Sandia

270

Sandia National Laboratories: compact linear Fresnel reflector  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1development Sandia, NREL Releasehy-drogen power Portablecombustion simulationcompact

271

Sandia National Laboratories: Compact Linear Fesnel Reflector  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0Energy AdvancedEnergyEnergyMappingCombustionBiofuels OnWindCompact

272

Realized and Projected Impacts of U.S. Energy Efficiency Standards for Residential and Commercial Appliances  

E-Print Network [OSTI]

that ballast wattage would track ballast/lamp type accordingaverage wattage for each ballast type and number of lamps

Meyers, Stephen P.

2008-01-01T23:59:59.000Z

273

ZPR-3 Assembly 11 : A cylindrical sssembly of highly enriched uranium and depleted uranium with an average {sup 235}U enrichment of 12 atom % and a depleted uranium reflector.  

SciTech Connect (OSTI)

Over a period of 30 years, more than a hundred Zero Power Reactor (ZPR) critical assemblies were constructed at Argonne National Laboratory. The ZPR facilities, ZPR-3, ZPR-6, ZPR-9 and ZPPR, were all fast critical assembly facilities. The ZPR critical assemblies were constructed to support fast reactor development, but data from some of these assemblies are also well suited for nuclear data validation and to form the basis for criticality safety benchmarks. A number of the Argonne ZPR/ZPPR critical assemblies have been evaluated as ICSBEP and IRPhEP benchmarks. Of the three classes of ZPR assemblies, engineering mockups, engineering benchmarks and physics benchmarks, the last group tends to be most useful for criticality safety. Because physics benchmarks were designed to test fast reactor physics data and methods, they were as simple as possible in geometry and composition. The principal fissile species was {sup 235}U or {sup 239}Pu. Fuel enrichments ranged from 9% to 95%. Often there were only one or two main core diluent materials, such as aluminum, graphite, iron, sodium or stainless steel. The cores were reflected (and insulated from room return effects) by one or two layers of materials such as depleted uranium, lead or stainless steel. Despite their more complex nature, a small number of assemblies from the other two classes would make useful criticality safety benchmarks because they have features related to criticality safety issues, such as reflection by soil-like material. ZPR-3 Assembly 11 (ZPR-3/11) was designed as a fast reactor physics benchmark experiment with an average core {sup 235}U enrichment of approximately 12 at.% and a depleted uranium reflector. Approximately 79.7% of the total fissions in this assembly occur above 100 keV, approximately 20.3% occur below 100 keV, and essentially none below 0.625 eV - thus the classification as a 'fast' assembly. This assembly is Fast Reactor Benchmark No. 8 in the Cross Section Evaluation Working Group (CSEWG) Benchmark Specificationsa and has historically been used as a data validation benchmark assembly. Loading of ZPR-3 Assembly 11 began in early January 1958, and the Assembly 11 program ended in late January 1958. The core consisted of highly enriched uranium (HEU) plates and depleted uranium plates loaded into stainless steel drawers, which were inserted into the central square stainless steel tubes of a 31 x 31 matrix on a split table machine. The core unit cell consisted of two columns of 0.125 in.-wide (3.175 mm) HEU plates, six columns of 0.125 in.-wide (3.175 mm) depleted uranium plates and one column of 1.0 in.-wide (25.4 mm) depleted uranium plates. The length of each column was 10 in. (254.0 mm) in each half of the core. The axial blanket consisted of 12 in. (304.8 mm) of depleted uranium behind the core. The thickness of the depleted uranium radial blanket was approximately 14 in. (355.6 mm), and the length of the radial blanket in each half of the matrix was 22 in. (558.8 mm). The assembly geometry approximated a right circular cylinder as closely as the square matrix tubes allowed. According to the logbook and loading records for ZPR-3/11, the reference critical configuration was loading 10 which was critical on January 21, 1958. Subsequent loadings were very similar but less clean for criticality because there were modifications made to accommodate reactor physics measurements other than criticality. Accordingly, ZPR-3/11 loading 10 was selected as the only configuration for this benchmark. As documented below, it was determined to be acceptable as a criticality safety benchmark experiment. A very accurate transformation to a simplified model is needed to make any ZPR assembly a practical criticality-safety benchmark. There is simply too much geometric detail in an exact (as-built) model of a ZPR assembly, even a clean core such as ZPR-3/11 loading 10. The transformation must reduce the detail to a practical level without masking any of the important features of the critical experiment. And it must do this without increasing the total uncertain

Lell, R. M.; McKnight, R. D.; Tsiboulia, A.; Rozhikhin, Y.; National Security; Inst. of Physics and Power Engineering

2010-09-30T23:59:59.000Z

274

Demonstration of Recessed Downlight Technologies: Power and Illumination Assessment  

SciTech Connect (OSTI)

Solid state lighting (SSL), specifically light-emitting diodes (LED), has been advancing at a rapid pace, and there are presently multiple products available that serve as direct replacements for traditional luminaires. In this demonstration, conventional recessed lights in a conference room were used to compare conventional incandescent A-lamps, incandescent reflector R-lamps, dimming compact fluorescent lamps (CFL), to an LED replacement product. The primary focus during the study was on light delivered to the task plane as provided by the power required by the lighting system. Vertical illuminance, dimming range, and color shift are also important indicators of lighting quality and are discussed in the report. The results clearly showed that LEDs, with dimming-capable drivers, are much more efficient than incandescent and CFLs. Further, LEDs provide much smoother and consistent dimming than dimmable CFLs. On the potential negative side, it is important that the dimming switch be identified as compatible with the LED driver. A wide variety of dimmer switches are capable of dimming LEDs down to 15% of full light output, while select others can be capable of dimming LEDs down to 5%. In addition, LEDs can be intensive light sources, which can result in uncomfortable glare in some applications and to some occupants. Higher ceiling (9-foot or greater) or non-specular reflectors can act to alleviate the potential for glare.

Parker, Steven A.; Beeson, Tracy A.

2009-11-20T23:59:59.000Z

275

High-performance CFL downlights: The best and the brightest  

SciTech Connect (OSTI)

Downlight fixtures -- often referred to as ``recessed cans`` -- are among the most common lighting fixtures in commercial and residential settings. As such, they represent one of the most promising targets for improving lighting energy efficiency. The authors estimate that downlight fixtures account for more than one-fifth of the 2.8 billion incandescent lighting sockets in the US, and represent about 8 percent of total direct lighting energy use. Over 30 million new fixtures of this type are sold each year in the US. With existing and foreseeable technology, nearly two-thirds of the incandescent downlights in the US are candidates for retrofit or replacement with compact fluorescent lamps (CFLs) or fixtures. The remaining one-third, however, are unlikely to ever be replaceable with CFL technology because of constraints on light output, lighting quality, size, and cost-effectiveness of CFL alternatives. High performance downlight systems using compact fluorescent lamps and incorporating advanced optical, thermal, and ballast designs use up to 75 percent less energy than conventional incandescent downlight fixtures. Many CFL downlight fixtures, however, perform poorly. In this report, the authors explore ways in which various elements of fixture design influence performance. They also describe exemplary elements of high-performance designs, and evaluate several emerging or experimental technologies that promise to further improve efficiency.

Sardinsky, R.; Hawthorne, S.; Newcomb, J.

1993-12-31T23:59:59.000Z

276

Zinc Oxide and Nitride Nanowire Based Light Emitting Diodes  

E-Print Network [OSTI]

only be able to find incandescent lightbulbs and fluorescent10: Output spectra of incandescent light bulb, fluorescentemission spectra. The incandescent light bulb for example

Lai, Elaine Michelle

2009-01-01T23:59:59.000Z

277

Building Technologies Program - 1995 Annual Report  

E-Print Network [OSTI]

more efficient than typical incandescent lamps (17 lpw),near term with the ubiquitous incandescent light bulb in theyet fit in virtually any incandescent socket. Emboldened by

Selkowitz, S.E.

2010-01-01T23:59:59.000Z

278

Business Case for Energy Efficiency in Support of Climate Change Mitigation, Economic and Societal Benefits in India  

E-Print Network [OSTI]

Equipment years years Incandescent Lamps (Residential)W CFL 4hr/day Chinese Data Incandescent Lamps (Commercial)and Industrial End Uses Incandescent Lamps Refrigerators Air

McNeil, Michael A.

2013-01-01T23:59:59.000Z

279

Estimate of Technical Potential for Minimum Efficiency Performance Standards in 13 Major World Economies  

E-Print Network [OSTI]

for typical wattage of incandescent bulbs and hours of usagefor which we assume that incandescent bulbs gradually getsimilar to that of incandescent or fluorescent bulbs. These

Letschert, Virginie

2013-01-01T23:59:59.000Z

280

Status and Opportunities for Improving the Consistency of Technical Reference Manuals  

E-Print Network [OSTI]

than an equivalent incandescent). More recent TRMs tend torequiring standard incandescent bulbs to be 30% morea ratio of average incandescent wattage removed to average

Jayaweera, Tina

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Global Potential of Energy Efficiency Standards and Labeling Programs  

E-Print Network [OSTI]

lighting (replacement of incandescent lamps with CFLs) withof each type of lamp: incandescent; fluorescent tubes; andless consumptive than incandescent bulbs. Second, it impacts

McNeil, Michael A

2008-01-01T23:59:59.000Z

282

Impact of Large Scale Energy Efficiency Programs On Consumer Tariffs and Utility Finances in India  

E-Print Network [OSTI]

consumers to replace incandescent bulbs with CFLs. Weprograms (for example, incandescent bulbs) and j indicatesend-use (for example, incandescent bulbs) in 2011 and, T c

Abhyankar, Nikit

2011-01-01T23:59:59.000Z

283

Stalled on the Road to the Market: Analysis of Field Experience with a Project to Promote Lighting Efficiency in India  

E-Print Network [OSTI]

several rea- sons: (1) incandescent lamps, the products thatin replacing an incandescent with a CFL is unmatched in anysame quantity of light as an incandescent lamp. The BELLE

Gadgil, A.J.

2008-01-01T23:59:59.000Z

284

Residential Electricity Demand in China -- Can Efficiency Reverse the Growth?  

E-Print Network [OSTI]

2000: Lighting Type Incandescent Fluorescent CFL Percentagescenario, we assume that incandescent bulbs are graduallyW 60W 15W Fluorescent Lamps Incandescent Lamps CFL We then

Letschert, Virginie

2010-01-01T23:59:59.000Z

285

IMPROVING ENERGY EFFICIENCY AND REDUCING COSTS IN THE DRINKING WATER SUPPLY INDUSTRY: An ENERGY STAR Resource Guide for Energy and Plant Managers  

E-Print Network [OSTI]

energy consumed by an incandescent bulb is emitted in thefluorescent (CFL), and incandescent lights typically arelamps in place of incandescent bulbs in most cases; and

Brown, Moya Melody, Camilla Dunham Whitehead, Rich

2011-01-01T23:59:59.000Z

286

Quality and Performance of LED Flashlights in Kenya: Common End User Preferences and Complaints  

E-Print Network [OSTI]

shift from conventional incandescent technology to modernby dry cell batteries, incandescent flashlights powered by aSLA battery, and incandescent flashlights powered by dry

Tracy, Jenny

2010-01-01T23:59:59.000Z

287

ENERGY EFFICIENT LIGHTING PROGRAM. CHAPTER FROM THE ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1979  

E-Print Network [OSTI]

socket for a standard incandescent lamp. Once the diffuserwhether the lamp is fluorescent or incandescent, Comparedto the incandescent lamp, the circline fluorescent improves

Berman, S.

2013-01-01T23:59:59.000Z

288

Synthesis and luminescence properties of rare earth activated phosphors for near UV-emitting LEDs for efficacious generation of white light  

E-Print Network [OSTI]

lighting using incandescent lights and fluorescent lamps, asenergy used for the incandescent lamp is wasted as infraredsource to replace incandescent and fluorescent lighting [2].

Han, Jinkyu

2013-01-01T23:59:59.000Z

289

Controls for Solid-State Lighting  

E-Print Network [OSTI]

very high would replace incandescent and halogen A modernmotion sensor, the incandescent lamp switches on providing awork with fluorescent and incandescent lighting as well as

Rubinstein, Francis

2007-01-01T23:59:59.000Z

290

2006 Status Report Savings Estimates for the ENERGY STAR(R) Voluntary Labeling Program  

E-Print Network [OSTI]

10,000 hours) than incandescent lamps (usually estimated atcurrent plus several future incandescent lamp purchases. Themany times longer than incandescent lamps, maintenance costs

Webber, Carrie A.; Brown, Richard E.; Sanchez, Marla; Homan, Gregory K.

2006-01-01T23:59:59.000Z

291

Market Trial: Selling Off-Grid Lighting Products in Rural Kenya  

E-Print Network [OSTI]

people reported using an incandescent dry cell flashlightpurchasers. Type†of†Light† Incandescent† LED†dry†cell† LED†LED rechargeable, and incandescent dry cell flashlights were

Tracy, Jennifer

2012-01-01T23:59:59.000Z

292

Catalog of DC Appliances and Power Systems  

E-Print Network [OSTI]

13 Figure 10. Efficacy of AC incandescent13 Figure 11. Efficacy of AC incandescent reflectorand halogen lamps, which are incandescent, have considerably

Garbesi, Karina

2012-01-01T23:59:59.000Z

293

DSM Electricity Savings Potential in the Buildings Sector in APP Countries  

E-Print Network [OSTI]

out of inefficient incandescent light bulbs‚ÄĚ, informationof a complete phasing out of incandescent lamps by 2009. Theof an import restriction on incandescent general lighting

McNeil, MIchael

2011-01-01T23:59:59.000Z

294

Potential Impact of Adopting Maximum Technologies as Minimum Efficiency Performance Standards in the U.S. Residential Sector  

E-Print Network [OSTI]

and general lighting incandescent services (GLIS) areLighting Phase out of incandescent lighting has been passedout of general service incandescent lamps (GSIL) which donít

Letschert, Virginie

2010-01-01T23:59:59.000Z

295

Economic Analysis of Ilumex, A Project to Promote Energy-Efficient Residential Lighting in Mexico  

E-Print Network [OSTI]

Results for Replaceable Incandescent Lamps GUADALAJARA:new pesoslkWh respectively. Incandescent bulb purchase iscompared to conventional incandescent lamps, but its much

Sathaye, Jayant A.

2008-01-01T23:59:59.000Z

296

Estimate of Cost-Effective Potential for Minimum Efficiency Performance Standards in 13 Major World Economies Energy Savings, Environmental and Financial Impacts  

E-Print Network [OSTI]

lighting, we assume that incandescent bulbs have a one-yeargigaton Indonesia India incandescent Lamp Japan Koreaprice data for 60-watt incandescent bulbs, excluding non-

Letschert, Virginie E.

2013-01-01T23:59:59.000Z

297

Radiative Heat Transfer in Enhanced Hydrogen Outgassing of Glass  

E-Print Network [OSTI]

samples are exposed to an incandescent lamp. Acknowledgmentin a furnace or by an incandescent lamp. It was observedwhen heated by an incandescent lamp than within furnace.

Kitamura, Rei; Pilon, Laurent

2009-01-01T23:59:59.000Z

298

2007 Status Report: Savings Estimates for the ENERGY STAR(R) VoluntaryLabeling Program  

E-Print Network [OSTI]

10,000 hours) than incandescent lamps (usually estimated atcurrent plus several future incandescent lamp purchases. Themany times longer than incandescent lamps, maintenance costs

Sanchez, Marla; Webber, Carrie A.; Brown, Richard E.; Homan, Gregory K.

2007-01-01T23:59:59.000Z

299

Analysis of Minimum Efficiency Performance Standards for Residential General Service Lighting in Chile  

E-Print Network [OSTI]

phasing out the use of incandescent lamps. Following majorproposed phase out of incandescent bulbs in Chile. 2 Lifeless energy: here incandescent lights (IL) are evaluated

Letschert, Virginie E.

2012-01-01T23:59:59.000Z

300

Business Case for Energy Efficiency in Support of Climate Change Mitigation, Economic and Societal Benefits in China  

E-Print Network [OSTI]

and Industrial End Uses Incandescent Lamps RefrigeratorsMachines Industrial†Motors Incandescent†Lamps Standby†PowerGas†Water† Heaters,† Incandescent† Lamps,†286 Industrial†

McNeil, Michael A.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Assessing the Performance of LED-Based Flashlights Available in the Kenyan Off-Grid Lighting Market  

E-Print Network [OSTI]

have largely displaced incandescent flashlights in retailinvolving the use of incandescent lighting, unless there areFluorescent Flashlight C Incandescent SPX 50 Fluorescent y x

Tracy, Jennifer

2010-01-01T23:59:59.000Z

302

2005 Status Report Savings Estimates for the ENERGY STAR(R) Voluntary Labeling Program  

E-Print Network [OSTI]

10,000 hours) than incandescent lamps (usually estimated atcurrent plus several future incandescent lamp purchases. Themany times longer than incandescent lamps, maintenance costs

Webber, Carrie A.; Brown, Richard E.; Sanchez, Marla

2006-01-01T23:59:59.000Z

303

White Paper on Energy Efficiency Status of Energy-Using Products in China (2012)  

E-Print Network [OSTI]

Gradually Phasing Out Incandescent Lamps in China has beenhand, a phase- out of incandescent lamps has begun to ďGradually Phasing Out Incandescent Lamps in China in 2011.

Zhou, Nan

2013-01-01T23:59:59.000Z

304

Managing Your Energy: An ENERGY STAR(R) Guide for Identifying Energy Savings in Manufacturing Plants  

E-Print Network [OSTI]

fluorescent (CFL), and incandescent lights are typicallyhours) Applications Incandescent Task Halogen Task CFL TaskCenter of Wisconsin. Replace incandescent lamps with compact

Worrell, Ernst

2010-01-01T23:59:59.000Z

305

Energy Data Sourcebook for the U.S. Residential Sector  

E-Print Network [OSTI]

device. For instance, an incandescent bulb used one hour persockets. We create incandescent bulb UECs by both hours ofand lifetimes for standard incandescent bulbs and their more

Wenzel, T.P.

2010-01-01T23:59:59.000Z

306

Calendar Year 2007 Program Benefits for ENERGY STAR Labeled Products  

E-Print Network [OSTI]

weighted average across incandescent, CFL, and non-ENERGYreports power savings from incandescent/CFL lamp replacementreplacement of a 65 W incandescent lamp with a 16 W compact

Sanchez, Marla Christine

2008-01-01T23:59:59.000Z

307

Max Tech and Beyond: High-Intensity Discharge Lamps  

E-Print Network [OSTI]

of color compared with the incandescent reference source isin this report. Standard Incandescent Halogen Low-Pressure:value equivalent to an incandescent filament lamp. Taking

Scholand, Michael

2012-01-01T23:59:59.000Z

308

Synthesis and characterization of visible emission from rare-earth doped aluminum nitride, gallium nitride and gallium aluminum nitride powders and thin films  

E-Print Network [OSTI]

residential lighting using incandescent lights [2], as shownenergy used for the incandescent lamp is wasted as infraredlight source to replace incandescent lighting [1]. Figure

Tao, Jonathan Huai-Tse

2010-01-01T23:59:59.000Z

309

Acting Globally: Potential Carbon Emissions Mitigation Impacts from an International Standards and Labelling Program  

E-Print Network [OSTI]

both fluorescent and incandescent), standby power (forFluorescent Tubes Incandescent Lamps All % of CFL variableRefrigerator Savings Incandescent Lamp Savings Fluorescent

Letschert, Virginie E.

2010-01-01T23:59:59.000Z

310

Business Case for Energy Efficiency in Support of Climate Change Mitigation, Economic and Societal Benefits in the United States  

E-Print Network [OSTI]

Commercial Equipment Incandescent Lamps Refrigerators RoomElectric†Water†Heaters Incandescent†Lamps In†2020 In†2030512 Central†AC†&† HP†,†264 Incandescent† Lamps,†513 Standby†

Bojda, Nicholas

2011-01-01T23:59:59.000Z

311

Energy Management A Program of Energy Conservation for the Community College Facility  

E-Print Network [OSTI]

whenever possible) Lamps Type (incandescent, fluorescent,are as follows: Lamp Type Incandescent FI uorescent Mercurylumens/watt lumens/watt Incandescent Mercury Metal Additive

Authors, Various

2011-01-01T23:59:59.000Z

312

Use Patterns of LED Flashlights in Kenya and a One-Year Cost Analysis of Flashlight Ownership  

E-Print Network [OSTI]

in Kenya, outpacing incandescent flashlights (Johnstone etbenefits relative to incandescent bulbs, and low-cost LEDsby dry cell batteries, incandescent flashlights powered by a

Tracy, Jennifer

2010-01-01T23:59:59.000Z

313

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

E-Print Network [OSTI]

52LPW assuming 80% incandescent @14LPW goes to CFL @52LPWthan the traditional incandescent lighting it is replacingbest technology Lighting Incandescent, fluorescent, LED

Garbesi, Karina

2012-01-01T23:59:59.000Z

314

A study of contacts and back-surface reflectors for 0.6-eV Ga{sub 0.32}In{sub 0.68}As/InAs{sub 0.32}P{sub 0.68} thermophotovoltaic monolithically interconnected modules  

SciTech Connect (OSTI)

Thermophotovoltaic (TPV) systems have recently rekindled a high level of interest for a number of applications. In order to meet the requirement of low-temperature ({approximately}1000&hthinsp;{degree}C) TPV systems, 0.6-eV Ga{sub 0.32}In{sub 0.68}As/InAs{sub 0.32}P{sub 0.68} TPV monolithically interconnected modules (MIMs) have been developed at the National Renewable energy Laboratory (NREL) [1]. The successful fabrication of Ga{sub 0.32}In{sub 0.68}As/InAs{sub 0.32}P{sub 0.68} MIMs depends on developing and optimizing of several key processes. Some results regarding the chemical vapor deposition (CVD)-SiO{sub 2} insulating layer, selective chemical etch via sidewall profiles, double-layer antireflection coatings, and metallization via interconnects have previously been given elsewhere [2]. In this paper, we report on the study of contacts and back-surface reflectors. In the first part of this paper, Ti/Pd/Ag and Cr/Pd/Ag contact to n-InAs{sub 0.32}P{sub 0.68} and p-Ga{sub 0.32}In{sub 0.68}As are investigated. The transfer length method (TLM) was used for measuring of specific contact resistance R{sub c}. The dependence of R{sub c} on different doping levels and different pre-treatment of the two semiconductors will be reported. Also, the adhesion and the thermal stability of Ti/Pd/Ag and Cr/Pd/Ag contacts to n-InAs{sub 0.32}P{sub 0.68} and p-Ga{sub 0.32}In{sub 0.68}As will be presented. In the second part of this paper, we discuss an optimum back-surface reflector (BSR) that has been developed for 0.6-eV Ga{sub 0.32}In{sub 0.68}As/InAs{sub 0.32}P{sub 0.68} TPV MIM devices. The optimum BSR consists of three layers: {approximately}1300 {Angstrom} MgF{sub 2} (or {approximately}1300 {Angstrom} CVD SiO{sub 2}) dielectric layer, {approximately}25 {Angstrom} Ti adhesion layer, and {approximately}1500 {Angstrom} Au reflection layer. This optimum BSR has high reflectance, good adhesion, and excellent thermal stability. {copyright} {ital 1999 American Institute of Physics.}

Wu, X.; Duda, A.; Carapella, J.J.; Ward, J.S.; Webb, J.D.; Wanlass, M.W. [National Renewable Energy Laboratory, Golden, Colorado 80401 (United States)

1999-03-01T23:59:59.000Z

315

ZIRCONIUM AND HAFNIUM--2000 87.1 ZIRCONIUM AND HAFNIUM  

E-Print Network [OSTI]

glow of incandescent lighting. The incandescent lamp mantle industry was established in 1884 with a brilliant white incandescence. With the advent of the electric incandescent lamp around 1912, zirconia's use

316

Max Tech and Beyond: Maximizing Appliance and Equipment Efficiency by Design  

E-Print Network [OSTI]

LED) replace conventional incandescent lighting Heat pumpreplacing Only the residential sector remains incandescentdominantly incandescent. Although bulbs, primarily in LED

Desroches, Louis-Benoit

2012-01-01T23:59:59.000Z

317

Laboratory Ventilation SafetyLaboratory Ventilation Safety J. Scott WardJ. Scott Ward  

E-Print Network [OSTI]

the incandescent light bulb in 1879.incandescent light bulb in 1879. #12;First Labconco Hood 1936First Labconco

Farritor, Shane

318

Development of Advanced Polymeric Reflector for CSP Applications - Final Report  

SciTech Connect (OSTI)

This project attempted to deposit extremely thick and dense protective barrier onto a mirror film stack with a PET substrate. The target thickness was very high for thin film products; particularly since large areas and long production lengths of film are needed to make the final product economic. The technical investigations in this project centered on maintaining a quality barrier (i.e. dense film) while evaporating alumina with a high deposition rate onto a low cost PET substrate. The project found that the proposed configuration, particularly direct ion bombardment, provides too narrow a solution space to effectively and economically produce the ASRM attempted. The initial project goals were met when depositing on a limited width and at a modest rate. However, expanding to wide deposition at aggressive deposition rates did not produce consistent film quality. Economic viability drives the process to maximize deposition rate. The current system configuration has a limiting upper rate threshold that does not appear economically viable. For future work, alternate approaches seem needed to address the challenges encountered in the scale-up phase of this project.

Treglio, Richard, T; Boyle, Keith, A; Henderson, Hildie

2013-03-28T23:59:59.000Z

319

Code division multiple access signaling for modulated reflector technology  

DOE Patents [OSTI]

A method and apparatus for utilizing code division multiple access in modulated reflectance transmissions comprises the steps of generating a phase-modulated reflectance data bit stream; modifying the modulated reflectance data bit stream; providing the modified modulated reflectance data bit stream to a switch that connects an antenna to an infinite impedance in the event a "+1" is to be sent, or connects the antenna to ground in the event a "0" or a "-1" is to be sent.

Briles, Scott D. (Los Alamos, NM)

2012-05-01T23:59:59.000Z

320

Enhancing cholesteric liquid crystal laser performance using a cholesteric reflector  

E-Print Network [OSTI]

laser based on a free- standing film of photo polymerized cholesteric liquid crystal," Appl. Phys. Lett as an optic fiber-based temperature sensor," Appl. Phys. Lett. 85, 2691-2693 (2004). 15. Y. Huang, Y. Zhou

Wu, Shin-Tson

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Optical and Mechanical Effects of Elastomeric Distributed Bragg Reflectors  

E-Print Network [OSTI]

.59) will give the true stress t: t1 = t2 = F A = piR2?P 2piRH = R?P 2H . (2.60) Equation 2.60 can be used to analyse the stress and strain of spherical balloons, or of any thin membrane/wall with a spherical curvature under pressure difference, including boilers...

Kamita, Gen

2014-05-27T23:59:59.000Z

322

Advanced Manufacture of Reflectors- FY12 Q4  

Broader source: Energy.gov [DOE]

This document summarizes the progress of this University of Arizona project, funded by SunShot, for the fourth quarter of fiscal year 2012.

323

Advanced Manufacture of Reflectors- FY13 Q1  

Broader source: Energy.gov [DOE]

This document summarizes the progress of this University of Arizona project, funded by SunShot, for the first quarter of fiscal year 2013.

324

The Effect of Reflectors and Delamping Upon Light Levels  

E-Print Network [OSTI]

performance from surface under a mark on the ceiling by use of a the fixtures present in each classroom. plumb-bob. In Room A-4, measurements were made from the same corner of the immovable student TEST DETAILS desks. suEUufS Meter CaKtu&&~ Errors... of the walls will vary with displays and decorations and may cause small variations in light level. Floors and ceilings were not a factor because desks were removed from the rooms when possible and no changes were made to the ceilings. Action: Lighting...

Pashkevich, P. A.

1989-01-01T23:59:59.000Z

325

Project Profile: Advanced Manufacture of Reflectors | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309Department ofDepartmentProjectat High

326

Project Profile: Advanced Polymeric Reflector for CSP Applications |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309Department ofDepartmentProjectat HighDepartment of

327

Project Profile: High Performance Reflector Panels for CSP Assemblies |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309DepartmentDepartment of EnergyFlexibleSaltsDepartment

328

Identification of High-Speed Rail Ballast Flight Risk Factors and Risk Mitigation Strategies  

E-Print Network [OSTI]

Francesco Bedini Jacobini, Erol Tutumluer, Mohd Rapik Saat Rail Transportation and Engineering Center (Rail

Barkan, Christopher P.L.

329

PHASE I FINAL REPORT SUBCONTRACT NO. 2019702 "ENERGY EFFICIENT FLUORESCENT BALLASTS"  

E-Print Network [OSTI]

b. Task lighting power input comparison vrs lighting levelsSystem power comparison with Stevens set a minimum lightinglighting levels Stevens VRS ? a. System power comparison,

Authors, Various

2011-01-01T23:59:59.000Z

330

E-Print Network 3.0 - asphalt ballast Sample Search Results  

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

field tested open-graded ... Source: Texas at Austin, University of - Center for Transportation Research Collection: Energy Storage, Conversion and Utilization 5 Safe Operating...

331

Design of Resonant Inverters for Optimal Efficiency over Lamp Life in Electronic Ballast  

E-Print Network [OSTI]

from a typical increase in an HID lamp equivalent resistance RI,, ovet its lifetime of more than 100 controlled resonant inverters to drive HID lamps. Considering the variation of the lamp resistance over its the lamp resistance during its Iifetime and system frequency range limitations. Design constraints have

332

Residential and Transport Energy Use in India: Past Trend and Future Outlook  

E-Print Network [OSTI]

type of lighting bulb (incandescent, fluorescent), number ofof incandescent bulbs and fluorescent tubes per household,incandescent bulbs of 60W and 2.1 fluorescent tubes of 40W

de la Rue du Can, Stephane

2009-01-01T23:59:59.000Z

333

Conservation Potential of Compact Fluorescent Lamps in India and Brazil  

E-Print Network [OSTI]

38 TWh, 10% of which was for incandescent lighting (Fig. 3).The electricity consumed in incandescent lighting can be300 and 400 million incandescent lamps in the country. Let

Gadgil, A.J.

2008-01-01T23:59:59.000Z

334

The Boom of Electricity Demand in the Residential Sector in the Developing World and the Potential for Energy Efficiency  

E-Print Network [OSTI]

for fluorescent and incandescent lamps. Estimates of thein Table 3. Table 3 Ė Incandescent, Fluorescent and CFL lampthe surveys is 60W for incandescent bulb, 15W for CFLs and

Letschert, Virginie

2010-01-01T23:59:59.000Z

335

Calendar Year 2008 Program Benefits for ENERGY STAR Labeled Products  

E-Print Network [OSTI]

reports power savings from incandescent/CFL lamp replacementreplacement of a 65 W incandescent lamp with a 16 W compactthe equivalent of 109 W incandescent lamp, the average of

Homan, GregoryK

2010-01-01T23:59:59.000Z

336

Demand for Environmentally-Friendly Durables  

E-Print Network [OSTI]

the replacement of short-lived incandescent bulbs with long-the replacement of short-lived incandescent bulbs with long-15 watt CFL for 60 watt incandescent bulb), durable (minimum

Martin, Leslie Aimee

2012-01-01T23:59:59.000Z

337

Residential and Transport Energy Use in India: Past Trend and Future Outlook  

E-Print Network [OSTI]

type of lighting bulb (incandescent, fluorescent), number ofhouseholds possessed 3.2 incandescent bulbs of 60W and 2.1areas versus only 2.1 incandescent bulbs of 60W and 1.5

de la Rue du Can, Stephane

2009-01-01T23:59:59.000Z

338

Calendar Year 2007 Program Benefits for U.S. EPA Energy Star Labeled Products: Expanded Methodology  

E-Print Network [OSTI]

technology categories: incandescent, CFL, non-Energy Star45% of exit signs were incandescent, 40% were CFLs, 7.5%share weighted average of incandescent, CFL, and non-Energy

Sanchez, Marla

2010-01-01T23:59:59.000Z

339

ENERGY EFFICIENT LIGHTING PRODUCTS NOTICE (2011-04-25) i ENERGY EFFICIENT LIGHTING PRODUCTS  

E-Print Network [OSTI]

Measurements ______ 22/E12* IES LM-45:1991 Incandescent Lamps - Electrical Measurements ______ 22/E13* IES LM-45:2000 Incandescent Lamps - Electrical Measurements ______ 22/E13a* IES LM-45:2009 Incandescent

340

Power Capture (PowCap) Board for Non Intrusive Load Monitoring and Power Line Communication Exploration and Development  

E-Print Network [OSTI]

including a) LED lamp, b) incandescent lamp, c) Macbook Pro,W) a LED Lamp 15W b Incandescent Lamp 25W c Macbook 200W dLED lamp (LED) from the incandescent lamp (Lamp) and the Fan

Balakrishnan, Vikram

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

ENERGY EFFICIENT LIGHTING PRODUCTS TEST METHOD SELECTION LIST  

E-Print Network [OSTI]

:1991 Incandescent Lamps - Electrical Measurements ______ 22/E13* IES LM-45:2000 Incandescent Lamps - Electrical Measurements ______ 22/E13a* IES LM-45:2009 Incandescent Lamps - Electrical Measurements ______ 22/E14 IES LM

342

,,,"Incandescent","Standard Fluorescent","Compact Fluorescent","High-Intensity Discharge","Halogen"  

U.S. Energy Information Administration (EIA) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQProved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tabUpcoming8. Energy38.

343

,,,"Incandescent","Standard Fluorescent","Compact Fluorescent","High-Intensity Discharge","Halogen"  

U.S. Energy Information Administration (EIA) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQProved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tabUpcoming8.

344

EnergySmart Schools Tips: Retrofitting, Operating, and Maintaining...  

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

less than three years. * Replace conventional incandescent exit signs with LED (light-emitting diode) exit signs. LEDs use at least 75 percent less energy than incandescent bulbs....

345

Conservation Potential of Compact Fluorescent Lamps in India and Brazil  

E-Print Network [OSTI]

also additional benefits from avoided costs of environmentalpremium for India)) - (avoided annual cost of incandescents)electricity) + (avoided annual cost of incandescents) - (

Gadgil, A.J.

2008-01-01T23:59:59.000Z

346

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

E-Print Network [OSTI]

Appliance type Standard technology DC-internal best technology Lighting Incandescent, fluorescent, LED Incandescent Electronic Heating Heater Electric resistance Cooling Motor (& compressor,

Garbesi, Karina

2012-01-01T23:59:59.000Z

347

Zinc Oxide and Nitride Nanowire Based Light Emitting Diodes  

E-Print Network [OSTI]

of incandescent light bulb, fluorescent lamp, and blue lightof incandescent light bulb, fluorescent lamp, and blue lightincandescent bulb and is on the same order as fluorescent

Lai, Elaine Michelle

2009-01-01T23:59:59.000Z

348

A Journey from UCSB physics to Audrey Nelson  

E-Print Network [OSTI]

Target Gas Patented Waveguide Incandescent Infrared Source Microprocessor Diffusion Membranes Dual Beam integrated electronics Incandescent IR source and multi-channel thermopile detector Current gases applicable

Akhmedov, Azer

349

1. Mean Trick in the Shower It is known that in conditions of collective water supply the temperature of the water flowing on the man in  

E-Print Network [OSTI]

outside affect the situation. 4. , , , . 4. Incandescent Data Transfer Achieve a maximum data transfer rate using an incandescent bulb as a transmitter to modulate the optical signal

Kaplan, Alexander

350

THELUMINAPROJECT http://light.lbl.gov  

E-Print Network [OSTI]

source of portable lighting in Kenya, outpacing incandescent flashlights (Johnstone et al., 2009). LED technology has the potential to provide efficiency and performance benefits relative to incandescent bulbs

Jacobson, Arne

351

E-Print Network 3.0 - ave lamp margareete Sample Search Results  

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

. . . . . . . . . . . . . . . . . . . . . .1 1.1 A-lamps... Problems Are you using incandescent A-lamps? Incandescent lamps are one of the most inefficient lighting... sources...

352

Replacement Costs and Cleaning & Service Charges for ResidenceHalls  

E-Print Network [OSTI]

Incandescent Light Fixture $130.00 each Incandescent Light Fixture Globe $82.00 each Exit Sign $440.00 each

Shyy, Wei

353

Estimate of federal relighting potential and demand for efficient lighting products  

SciTech Connect (OSTI)

The increasing level of electric utility rebates for energy-efficient lighting retrofits has recently prompted concern over the adequacy of the market supply of energy-efficient lighting products (Energy User News 1991). In support of the U.S. Department of Energy`s Federal Energy Management Program, Pacific Northwest Laboratory (PNL) has developed an estimate of the total potential for energy-efficient lighting retrofits in federally owned buildings. This estimate can be used to address the issue of the impact of federal relighting projects on the supply of energy-efficient lighting products. The estimate was developed in 1992, using 1991 data. Any investments in energy-efficient lighting products that occurred in 1992 will reduce the potential estimated here. This analysis proceeds by estimating the existing stock of lighting fixtures in federally owned buildings. The lighting technology screening matrix is then used to determine the minimum life-cycle cost retrofit for each type of existing lighting fixture. Estimates of the existing stock are developed for (1) four types of fluorescent lighting fixtures (2-, 3-, and 4-lamp, F40 4-foot fixtures, and 2-lamp, F96 8-foot fixtures, all with standard magnetic ballasts); (2) one type of incandescent fixture (a 75-watt single bulb fixture); and (3) one type of exit sign (containing two 20-watt incandescent bulbs). Estimates of the existing stock of lighting fixtures in federally owned buildings, estimates of the total potential demand for energy-efficient lighting products if all cost-effective retrofits were undertaken immediately, and total potential annual energy savings (in MWh and dollars), the total investment required to obtain the energy savings and the present value of the efficiency investment, are presented.

Shankle, S.A.; Dirks, J.A.; Elliott, D.B.; Richman, E.E.; Grover, S.E.

1993-11-01T23:59:59.000Z

354

Sleep, mood, and circadian responses to bright green light during sleep  

E-Print Network [OSTI]

white light from fluorescent bulbs, as point sources mightthan incandescent bulbs. Also, fluorescent light is easier

Grandner, Michael Andrew

2007-01-01T23:59:59.000Z

355

Electrical and Optical Enhancement in Internally Nanopatterned Organic Light-Emitting Diodes  

E-Print Network [OSTI]

incandescent bulbs and fluorescent bulbs). Solid-stateindex (CRI) than fluorescent bulbs. Common examples where

Fina, Michael Dane

2012-01-01T23:59:59.000Z

356

PROJECTS IMPLEMENTED The City focused on improving the efficiency of  

E-Print Network [OSTI]

· Replacing incandescent exit signs with new light emitting diode signs · Replacing the existing chiller

357

EA-1664: Final Environmental Assessment  

Broader source: Energy.gov [DOE]

10 CFR Part 430 Energy Conservation Standards: Energy Conservation Standards for Fluorescent and Incandescent Lamps

358

RARE EARTHS By James B. Hedrick  

E-Print Network [OSTI]

and incandescent lighting remained stable. Yttrium was used primarily in lamp and cathode ray tube phosphors

359

TESTING OF ENERGY CONSERVATION OF ELECTRONIC BALLASTS FOR FLUORESCENT LIGHTING REVIEW OF RECENT RESULTS AND RECOMMENDATIONS FOR DESIGN GOALS  

E-Print Network [OSTI]

Ur:.V(. ,(lh. Fluorescent Lighting Review of Recent Resultsfrom 30 0 C to 50įC. The lighting system.with core ballastswas conducted to measure the lighting system performance for

Verderber, R.R.

2011-01-01T23:59:59.000Z

360

Bacteria in Ballast Water: The Shipping Industry's Contributions to the Transport and Distribution of Microbial Species in Texas  

E-Print Network [OSTI]

, amplified ribosomal rDNA restriction analysis (ARDRA) and phylogenetic analysis. Bacterial communities in Texas ports and bays were also examined using denaturing gradient gel electrophoresis (DGGE), looking at both temporal and spatial variations...

Neyland, Elizabeth B.

2010-10-12T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Production, oxygen respiration rates, and sinking velocity of copepod fecal pellets: Direct measurements of ballasting by opal and calcite  

E-Print Network [OSTI]

Production, oxygen respiration rates, and sinking velocity of copepod fecal pellets: Direct of copepod fecal pellets egested by Temora longicornis were measured using a nanoflagellate (Rhodomonas sp pellet production varied between 0.8 pellets ind21 h21 and 3.8 pellets ind21 h21 and was significantly

Matthews, Adrian

362

STATE OF UTAH CONTRACT NUMBER: MA049 January 24, 2014 Page 1 of 3 Includes Codale Lamp and Ballast  

E-Print Network [OSTI]

39% Off Air Filters 23% Off 40% Off 12% Off Paint & Accessories 23% Off 12% Off 25% Off Batteries and Storage 56078 Metal Working /Welding & Lubrication 54545 Motor and Power Transmission 28502 Outdoor

Capecchi, Mario R.

363

Retail Lamps Study 3.1: Dimming, Flicker, and Power Quality Characteristics of LED A Lamps.  

SciTech Connect (OSTI)

To date, all three reports in the retail lamps series have focused on basic performance parameters, such as lumen output, efficacy, and color quality. This report goes a step further, examining the photoelectric characteristics (i.e., dimming and flicker) of a subset of lamps from CALiPER Retails Lamps Study 3. Specifically, this report focuses on the dimming, power quality, and flicker characteristics of 14 LED A lamps, as controlled by four different retail-available dimmers. The results demonstrate notable variation across the various lamps, but little variation between the four dimmers. Overall, the LED lamps: ~tended to have higher relative light output compared to the incandescent and halogen benchmark at the same dimmer output signal (RMS voltage). The lampsí dimming curves (i.e., the relationship between control signal and relative light output) ranged from linear to very similar to the square-law curve typical of an incandescent lamp. ~generally exhibited symmetrical behavioróthe same dimming curveówhen measured proceeding from maximum to minimum or minimum to maximum control signal. ~mostly dimmed below 10% of full light output, with some exceptions for specific lamp and dimmer combinations ~exhibited a range of flicker characteristics, with many comparing favorably to the level typical of a magnetically-ballasted fluorescent lamp through at least a majority of the dimming range. ~ always exceeded the relative (normalized) efficacy over the dimming range of the benchmark lamps, which rapidly decline in efficacy when they are dimmed. This report generally does not attempt to rank the performance of one product compared to another, but instead focuses on the collective performance of the group versus conventional incandescent or halogen lamps, the performance of which is likely to be the baseline for a majority of consumers. Undoubtedly, some LED lamps perform betteróor more similar to conventional lampsóthan others. Some perform desirably for one characteristic, but not others. Consumers (and specifiers) may have a hard time distinguishing better-performing lamps from one another; at this time, physical experimentation is likely the best evaluation tool.

Royer, Michael P.; Poplawski, Michael E.; Brown, Charles C.

2014-12-14T23:59:59.000Z

364

Recessed Lighting in the Limelight  

SciTech Connect (OSTI)

Recessed downlights are among the most popular installed lighting fixtures for new and remodeled homes. DOE estimates there are at least 350 million currently installed in US homes, and around 20 million are sold each year. A recent California study showed only 0.4 percent of recessed cans used compact fluorescent lamps. Annual reported sales of fluorescent residential recessed downlights nationwide make up no more than three percent of total residential recessed downlight sales. Standard recessed downlights waste energy by leaking conditioned air to unconditioned attic space, and using less efficient, high-heat incandescent bulbs. 33 states have adopted building codes that require recessed cans installed in the building shell to be airtight. To encourage lighting fixture manufacturers to bring to market high-efficiency air-tight recessed cans, DOE is sponsoring the recessed downlights project. PNNL solicited bids for energy efficient recessed downlights meeting the following specifications: They must use pin-based CFLs, have an airtight housing, be IC-rated, use electronic ballasts, and have a light output minimum of 900 initial lumens. PNNL did short- and long-term testing of the submitted lamps and negotiated lower prices for consumer purchase of qualifying models.

Gordon, Kelly L.; McCullough, Jeffrey J.

2003-02-01T23:59:59.000Z

365

ORALLOY (93.2 235U) METAL CYLINDER WITH BERYLLIUM TOP REFLECTOR  

SciTech Connect (OSTI)

A variety of critical experiments were constructed of enriched uranium metal during the 1960s and 1970s at the Oak Ridge Critical Experiments Facility (ORCEF) in support of criticality safety operations at the Y-12 Plant. The purposes of these experiments included the evaluation of storage, casting, and handling limits for the Y-12 Plant and providing data for verification of calculation methods and cross-sections for nuclear criticality safety applications. These included solid cylinders of various diameters, annuli of various inner and outer diameters, two and three interacting cylinders of various diameters, and graphite and polyethylene reflected cylinders and annuli. Of the hundreds of delayed critical experiments, one experiment was comprised of a stack of approximately 7-inch-diameter metal discs. The bottom of the stack consisted of uranium with an approximate height of 4-1/8 inches. The top of the stack consisted of beryllium with an approximate height of 5-9/16 inches. This experiment was performed on August 20, 1963 by J. T. Mihalczo and R. G. Taylor (Ref. 1) with accompanying logbook. Both detailed and simplified model specifications are provided in this evaluation. This fast-spectra experiment was determined to represent an acceptable benchmark. The calculated eigenvalues for both the detailed and simple models are within approximately 0.5% of the benchmark values, but significantly greater than 3s from the benchmark value because the uncertainty in the benchmark is very small: Ī0.0002 (1s). There is significant variability between results using different neutron cross section libraries, the greatest being a ?keff of ~0.65% . Unreflected and unmoderated experiments with the same highly enriched uranium metal parts were performed at the Oak Ridge Critical Experiments Facility in the 1960s and are evaluated in HEU MET FAST 051. Thin graphite reflected (2 inches or less) experiments also using the same highly enriched uranium metal parts are evaluated in HEU MET FAST 071. Polyethylene-reflected configurations are evaluated in HEU-MET-FAST-076. Highly enriched metal annuli with beryllium cores are evaluated in HEU-MET-FAST-059.

John D. Bess; Leland M. Montierth; Raymond Reed; John T. Mihalczo

2010-09-01T23:59:59.000Z

366

Electron-reflector strategy for CdTe thin-film solar cells.  

E-Print Network [OSTI]

??The CdTe thin-film solar cell has a large absorption coefficient and high theoretical efficiency. Moreover, large-area photovoltaic panels can be economically fabricated. These features potentiallyÖ (more)

Hsiao, Kuo-Jui

2010-01-01T23:59:59.000Z

367

Structural design considerations for stretched-membrane heliostat reflector modules with stability and initial imperfection considerations  

SciTech Connect (OSTI)

This report extends the work of several previous reports that present the background leading to the development of stretched-membrane modules and analysis methods to study the structural response of the stretched-membrane module. Specifically, this report presents and discusses the design implications based on our analysis of single- or double-membrane concepts, and the amplification of initial imperfections and deflections caused by loading, which results from stability considerations. In this document, we present analysis results for both single- and double-membrane concepts corresponding to a range of design and loading conditions. Further, we show that stretched-membrane/frame combinations respond quite differently to external loads than can be inferred by studying the decoupled frame and membrane independently. Thus the coupled membrane/frame problem should be considered to assure an accurate description of its response. For idealized configurations and loadings, we discuss the relative merits of various design features for both of these designs. In addition, we studied the structural stability (i.e., the tendency of structural deformation to grow with little increase in applied load) of the tensioned-membrane, compressed-frame combination. Moreover, we demonstrate how stability considerations are important in determining the amplification of both initial displacement imperfection and the deformations caused by wind and weight loading on the structure.

Murphy, L.M.; Simms, D.; Sallis, D.V.

1986-10-01T23:59:59.000Z

368

Wide bandwidth, large, and tunable polarization mode dispersions in multilayered omnidirectional reflectors  

E-Print Network [OSTI]

-speed fiber links in general.1­6 Cabled fibers show time-varying PMD due to manufacturing imperfec- tions. B. Miller and Shanhui Fana) Department of Electrical Engineering, Stanford University, Stanford

Miller, David A. B.

369

WhiteOptics' Low-Cost Reflector Composite Boosts LED Fixture Efficiency  

Broader source: Energy.gov [DOE]

With the help of DOE funding, WhiteOptics has developed a composite coating that can be used to improve efficiency in backlit, indirect, and cavity-mixing LED luminaire designs by maximizing light reflection and output. The highly diffuse coating, which is based on a novel high-reflectance particle technology, allows for uniform distribution of light without exaggerating the point-source nature of the LEDs, and is intended to offer an overall system cost-improving solution for LED optics.

370

Project Profile: Predictive Physico-Chemical Modeling of Intrinsic Degradation Mechanisms for Advanced Reflector Materials  

Broader source: Energy.gov [DOE]

NREL, under the Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar (PREDICTS) Program will be developing a physics-based computational degradation model to assess the kinetic oxidation rates; realistic model light attenuation and transport; and multi-layer treatment with variable properties Simulation based experimental design.

371

Low-Cost Self-Cleaning Reflector Coatings for CSP Collectors- FY13 Q2  

Broader source: Energy.gov [DOE]

This document summarizes the progress of this ORNL project, funded by SunShot, for the second quarter of fiscal year 2013.

372

Accelerated aging of thick glass second surface silvered reflectors under sandstorm conditions.  

E-Print Network [OSTI]

?? Concentrated solar power systems are expected to be sited in desert locations where the direct normal irradiation is above 1800 kWh/m2.year. These systems includeÖ (more)

Caron, Simon

2011-01-01T23:59:59.000Z

373

MICROMORPH n-i-p TANDEM CELLS WITH ASYMMETRIC INTERMEDIATE REFLECTORS F.-J. Haug1  

E-Print Network [OSTI]

(EPFL), Photovoltaics and Thin Film Electronics Laboratory, Rue A.-L. Breguet 2, 2000 Neuch√Ętel, Switzerland 2 now at University of New South Wales, School of Photovoltaic and Renewable Energy Engineering with size of typically 0.25 cm2 . The best cell among an array of 16 devices on the 4x4 cm2 sample area

Floreano, Dario

374

SciTech Connect: Radar cross section of triangular trihedral reflector with  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2) Sr (2) Ca (2)Frameworkextended bottom plate. Radar

375

SciTech Connect: Recovery Act: Low-Cost, Highly Lambertian Reflector  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2) Sr (2) Ca (2)FrameworkextendedComposite For Improved LED

376

Comparative study of Non -Tracking and Low Concentrating Photovoltaic systems Using Low -Cost Reflectors.  

E-Print Network [OSTI]

??The traditional high concentrating photovoltaic systems have proved to be expensive as they use high grade silicon solar cells, highly specular reflecting materials and requireÖ (more)

Hatwaambo, Sylvester

2012-01-01T23:59:59.000Z

377

Project Profile: Low-Cost Self-Cleaning Reflector Coatings for CSP  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309DepartmentDepartment ofCyclesEnergy HeliostatCollectors

378

Project Profile: Next-Generation Low-Cost Reflector | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309DepartmentDepartment ofCyclesEnergyCSP

379

Advanced Reflector and Absorber Materials (Fact Sheet), Thermal Systems Group: CSP Capabilities (TSG)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout the BuildingInnovation Portal AdvancedMethods

380

Status of China's Energy Efficiency Standards and Labels for Appliances and International Collaboration  

E-Print Network [OSTI]

irons Automatic rice cookers Televisions Radio receivers andlamp ballasts Automatic rice cookers Hot water bottle Small

Zhou, Nan

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

CFLs in Recessed Downlights: Technical Challenges  

SciTech Connect (OSTI)

Recessed downlights are the most popular residential lighting fixture in the United States representing about 12 percent of installed residential lighting fixtures and 15 percent of total lighting energy use nationwide. We estimate 400 million recessed downlights are currently installed in American homes, almost all using incandescent light sources. In the year 2000, only 0.44 percent of recessed cans sold were hard-wired for using pin-based CFLs. Recessed downlights consume energy in three ways. First, their incandescent light sources use energy directly, drawing 65 to 150 watts. Second, they consume energy indirectly by adding heat from their light sources to air-conditioning loads. Third, since most are not airtight, they also consume energy indirectly by allowing conditioned air to escape into unconditioned areas above the downlights, such as attics. PNNL calculated potential energy savings and found that if a 65W incandescent non-airtight downlight is replaced with a 26W CFL ICAT downlight operated at 3 hrs per day savings will be 126 kWh/yr. Early reflector CFLs have had high return rates primarily because of failure due to thermal related stress. A PNNL laboratory test of ten commercially available R-CFLs selected from retail store shelves showed almost all operated above their manufacturer rated maximum operating temperatures when they were installed and tested in ICAT downlights in a simulated insulated ceiling apparatus. DOE asked PNNL to investigate the development and introduction of both pin-based and screw-based CFLs for use in ICAT fixtures. PNNL invited manufacturers to submit lamps to a procurement program. PNNL conducted short- and long-term thermal testing of the lamps to measure performance parameters affected by elevated temperatures. 8 out of 10 R-CFLs (secrew-based lamps) failed the long-tem testing. Five out of nine CFL-ICAT (pin-based CFL) fixtures passed the long-term test, surviving a full year of operation in a simulated insulated ceiling apparatus, while maintaining at least 80% of initial lumens at 40% of rated life. Of those five products, two were withdrawn from the market due to poor sales, probably because of the high prices on the products. Three remain on the market. PNNL plans to initiate another R-CFL technology procurement in the winter of 2004/2005 to bring more high-quality R-CFL models to market. PNNL developed a number of design ideas for improving the thermal performance of pin-based CFL ICAT downlights for use in future activities.

Ledbetter, Marc R.; McCullough, Jeffrey J.; Dillon, Heather E.; Sandahl, Linda J.; Gordon, Kelly L.

2005-05-09T23:59:59.000Z

382

851 S.W. Sixth Avenue, Suite 1100 Steve Crow 503-222-5161 Portland, Oregon 97204-1348 Executive Director 800-452-5161  

E-Print Network [OSTI]

th Plan estimated that the conversion of standard incandescent bulbs used in the residential sector standard does not cover all incandescent lamps (e.g., lamps over 100 watts, 3- way lamps are exempt

383

Lesson Summary In this lesson, students will build an open spectrograph to  

E-Print Network [OSTI]

lines/mm or 25,400 groves/in) · Incandescent flashlight with focusing beam · Ruler · Meter stick · Exact students look through a diffraction grating toward an incandescent light bu

Mojzsis, Stephen J.

384

502 SHORT COMMUNICATIONS (Speotyto cuniculuria) to a moving object when the  

E-Print Network [OSTI]

the window. A red, 7-watt incandescent bulb inside the box provided illumina- tion for viewing the owl conditions were provided by one and four `I-watt incandescent bulbs, respectively. The single bulb

Minnesota, University of

385

Slutrapport for PSO 337-068 Udvikling af LED lyskilder og lamper  

E-Print Network [OSTI]

and RGB Lamps. The objective of this project was to pave the way for replacement of incandescent LED light source with an efficacy of 51 lm/W and a CRI index of 92 that can replace an incandescent

386

March 10, 2011 Let There Be More Efficient Light  

E-Print Network [OSTI]

standards for light bulbs, which include a phasing out of incandescent bulbs in favor of more energy lyrically with two colleagues about "the incandescent bulb that has been turning back the night ever since

Colorado at Boulder, University of

387

September 2007 21 commonplace," predicted Shinichiro  

E-Print Network [OSTI]

enough and their lifetime is longer than those of conventional incandescent lamps and fluorescent lights." Also, he noted, LEDs' power efficiency is greater than that of incandescent lamps and about same

Lu, Chenyang

388

Self-metallization of photocatalytic porphyrin nanotubes Zhongchun Wang,,  

E-Print Network [OSTI]

, placed in a glass water bath to control the temperature, and then irradiated with incandescent light (800 bath to control the temperature, and then irradiated with incandescent light (800 nmol cm-2 s-1 ). When

Shelnutt, John A.

389

Development of an Open-Source Smart Energy House for K-12 Education  

E-Print Network [OSTI]

around the world, incandescent lighting are becoming banned, because of the low efficiency. For example, through European commission regulation 244/2009 [4], re- cently all sales of incandescent light became

390

851 S.W. Sixth Avenue, Suite 1100 Steve Crow 503-222-5161 Portland, Oregon 97204-1348 Executive Director 800-452-5161  

E-Print Network [OSTI]

Plan estimated that the conversion of standard incandescent bulbs used in the residential sector not cover all incandescent lamps (e.g., lamps over 100 watts, 3-way lamps are exempt), it does cover 70

391

ELIZABETH H. AMARAL and H. ARNOLD CARR Experimental Fishing for Squid  

E-Print Network [OSTI]

south- ern California became dependent upon lamps, principally the incandescent type, combined under I,OOO-watt incandescent lights!. However, the squid never Introduction July-A ugusl 1980 51 #12

392

New Years Revolutions | Department of Energy  

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

CFLs, energy-saving incandescents, and LEDs - and upgrading 15 of the inefficient incandescent light bulbs in your home could save you about 50 per year. And if you haven't...

393

Imaging Overview For understanding work in computational  

E-Print Network [OSTI]

absorbs some light 5 #12;6 #12;Other typical light sources · Incandescent light source ­ Produced absorb UV light and produce visible light. 7 #12;Incandescent sources Power spectrum of common light

California at Santa Barbara, University of

394

Fermilab | Science | Inquiring Minds | Questions About Physics  

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

high temperature, so high that the material will emit light, that is, glow like an incandescent light bulb. That is exactly what an incandescent bulb is: current passing through a...

395

Resource Use Efficiency Dr. Ernst von Weizscker  

E-Print Network [OSTI]

LEED building #12;Energy efficiency From incandescent light bulbs to solid state lighting #12;Modern make it happen? CAFE standards Building codes Banning incandescent light bulbs Banning water wasting

Keller, Arturo A.

396

Funding Sustainable Initiatives: Should Williams Implement a Revolving Loan Fund?  

E-Print Network [OSTI]

to replace its incandescent light bulbs with more efficient compact fluorescent (CFL) light bulbs. These light bulbs use 2/3 less energy than #12;Terra 4 standard incandescent bulbs, but they are more

Aalberts, Daniel P.

397

Geaux Green: GREEN GUIDE  

E-Print Network [OSTI]

account. Make a switch Replace incandescent light bulbs with energy-efficient compact fluorescent lights. Remember: You should always turn your lights off regardless if they are incandescent bulbs or CFLs. Take

Harms, Kyle E.

398

Recommendations to Reduce Light Pollution and Energy Costs on the  

E-Print Network [OSTI]

(PAT18, PAT19, PAT27, PAT28, PAT29 - CL14): #12;· Change class #15, and class #20, incandescent bulbs with exterior fluorescent bulbs: · Change class #18 incandescent flood-light bulbs with fluorescent flood

399

Table Set-up with Materials near Lamp Stand (below) Target Audience: Parents of elementary school students (grades 3-6) and Middle and High School Students  

E-Print Network [OSTI]

spectrum with different light sources; compact fluorescent, LED, incandescent. 5. Discuss light bulb. Observe difference of color spectrum with different light sources; compact fluorescent, LED, incandescent type of bulb at different horizontal level. Electromagnetic Spectrum handouts that includes spectrum

Linhardt, Robert J.

400

4024 Inorg. Chem. 1987, 26, 4024-4029 Contribution from the Departments of Chemistry, Colgate University, Hamilton, New York 13346,  

E-Print Network [OSTI]

and laboratory fluorescent light and during nights to light from a 150-W incandescent bulb 20 cm from the pair

Herbert, Bruce

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Energy Consumption, Efficiency, Conservation, and Greenhouse Gas Mitigation in Japan's Building Sector  

E-Print Network [OSTI]

and a washroom with bulb-type fluorescent lamps, (5) closingusing incandescent bulbs to fluorescent lamps. This switch

2006-01-01T23:59:59.000Z

402

55Measuring Star Temperatures The lower plot shows  

E-Print Network [OSTI]

, incandescent bodies that have a red glow are 'cool' while bodies with a yellow or blue color are 'hot

403

HiRho CCD INTERNAL NOTE 31 October 1996  

E-Print Network [OSTI]

by incandescent light) exposure with the Keck low­resolution spectrograph, divided by the same frame averaged over

404

38 CHAPTER 1. ASSEMBLY MANUAL BiDirectional Motor  

E-Print Network [OSTI]

, Incandescent Lamp Sensor, Polarized Sensor, Non­polarized Figure 1.26: Standard Connector Plug Configurations

405

Power Factor Reactive Power  

E-Print Network [OSTI]

power: 130 watts Induction motor PSERC Incandescent lights 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0 power: 150 watts #12;Page 4 PSERC Incandescent Lights PSERC Induction motor with no load #12;Page 5 Incandescent Lights #12;Page 7 PSERC Incandescent lights power: Power = 118 V x 1.3 A = 153 W = 0.15 kW = power

406

Presented at the 1998 ACEEE Summer Study on Energy Efficiency in Buildings, August 23-28, 1998, Pacific Grove, CA, and published in the Proceedings.  

E-Print Network [OSTI]

Incandescent Lamps: The International Experience Francis Rubinstein Building Technologies Department 22311-1772 March 1998 #12;1 Creating Markets For New Products To Replace Incandescent Lamps-in, energy-efficient replacement for the incandescent lamp. This paper summarizes the international

407

Supplementary Material for: Application of Synchrotron Radiation for Measurement of Iron Red-ox  

E-Print Network [OSTI]

@engr.wisc.edu #12;Incandescent Light Bulb Spectrum Figure 1 Visible Light Fluorescent Light Bulb Spectrum #12;Figure 2 Visible Light Incandescent Light Bulb Spectrum #12;Figure 3 Unmodified XANES Spectrum February 14 of the incandescent lights used for aging the atmospheric aerosols. The units are in m / S / m2 / nm. Figure 3

Meskhidze, Nicholas

408

Author's personal copy Radiative heat transfer in enhanced hydrogen  

E-Print Network [OSTI]

tube and heated in a furnace or by an incandescent lamp. It was observed that hydrogen release from the glass sample was faster and stronger when heated by an incandescent lamp than within a furnace. Here and the glass samples. In brief, the radiation emitted by the incandescent lamp is concentrated between 0

Pilon, Laurent

409

How Many CASTLE Bulbs Would You Need To Match the Brightness of the Sun?  

E-Print Network [OSTI]

;Suppose that you have two household incandescent bulbs: one is labeled "60W," the other "100W." If you try incandescent bulb and a 9W fluorescent bulb. Which one makes your room brighter? It's not what you might expect... in fact, they look about the same! The incandescent bulb emits a broad spectrum of visible and infrared

Collar, Juan I.

410

Issues, Models and Solutions for Triac Modulated Phase Dimming of LED Lamps  

E-Print Network [OSTI]

greater than incandescent lamps [1,2]. In fact, recent technological breakthroughs [3-7] in the high of LED lighting: An incandescent source produces 10 ­ 20 lumens/watt, while several manufacturers have? Incandescent bulbs primarily utilize phase modulating dimming through triac switches to control the power sent

Lehman, Brad

411

Many exterior entry and walkway lights in residential and commercial  

E-Print Network [OSTI]

Many exterior entry and walkway lights in residential and commercial applications use incandescent combines cutting-edge LED technology with an occupancy sensor and incandescent lighting to reduce operating costs below those of incandescent lamps and CFL fixtures. The low wattage LED light turns on at dusk

412

PipelineJuly 2012 Volume 4, Issue 4 (From President Kaler's June 14 e-mail)  

E-Print Network [OSTI]

the LightEnergy Management seeks incandescent and T12 lamps Energy Management Senior Engineer Alicia inefficient light sources. Although the vast majority of the campus's number one offenders -- incandescent fluorescent lamps and classic incandescent A-lamps. T12's can be identified by their "fat" appearance (1

Webb, Peter

413

EK101 Engineering Light Project: Evaluate Residential Lighting  

E-Print Network [OSTI]

for residential lighting (LED, Compact Fluorescent, Incandescent). Develop a plan of experiments to be conducted, CF, and Incandescent bulbs for the past ten years. (try the wayback time machine if other sources fail). Discuss the key challenges associated with a transition from incandescent lighting

Bifano, Thomas

414

Phys. Med. Biol. 43 (1998) 24072412. Printed in the UK PII: S0031-9155(98)90934-4 Effects of read-out light sources and ambient light on  

E-Print Network [OSTI]

laser, light emitting diode (LED) and incandescent read-out light sources produce an equivalent dose, fluorescent light and incandescent ambient light produce an equivalent dose coloration of 30 cGy h-1, 18 cGy h the optical density of Gafchromic films include, helium neon lasers, ultrabright diodes, incandescent

Yu, K.N.

415

The light-emitting diode (LED) is an fairly new kind of light source found currently in  

E-Print Network [OSTI]

this technology an ideal replacement for less efficient incandescent light sources, particularly in applications elevator lighting has the potential to achieve 25 percent greater efficiency than current incandescent ILLUMINATION LEVELS SIMILAR TO THOSE OF INCANDESCENT FIXTURES WHILE CUTTING ENERGY USE 45 PERCENT. ELEVATOR

416

Inside this issue: Green Dorm,  

E-Print Network [OSTI]

. The crew, which we call the Green Scene team, will be changing out incandescent light bulbs for compact (see page 1). The incandescent bulbs collected will be donated to a local organization. Prizes will be given to the person who returns the most incandescent bulbs. CFL's use one-third of the energy than

Kidd, William S. F.

417

geoffrey iwata phy h190phy h190  

E-Print Network [OSTI]

through 2014 Effectively bans the manufacturing and importing of most current incandescent light bulbsmost current incandescent light bulbs Rationale: 22% of US electricity consumption due to lighting Wikipedia.org #12;What are the Light Bulb Wars Should incandescent bulbs be banned from production? ? #12

Budker, Dmitry

418

JY Tsao Evolution of Solid-State Lighting: Market Pull and Technology Push Xiamen 2005 Apr 13 Evolution of Solid-State Lighting  

E-Print Network [OSTI]

and Technology Push · Xiamen · 2005 Apr 13 0 20 40 60 80 100 0.1 1.0 10.0 100.0 Incandescent (12%) Fluorescent Fluorescent Standard Incandescent · So let's start with traditional lighting. · Here, I've plotted the 26 and Eugene Hong of Navigant Consulting. The lamps fall into three overall families: incandescent, in green

419

Solid-State lighting ReSeaRch & development at Sandia national laboRatoRieS  

E-Print Network [OSTI]

illumination via interface with microelectronics. MASSIVE ENERGY SAVINGS Incandescent and fluorescent lamps% efficient. Today's commercially available white LEDs are already five times as efficient as incandescent--or 10-15 times that of incandescent bulbs and 2-3 times that of fluorescents. BIG BOTTOM-LINE PAYOFF

420

Article #11, May 23, 2006 AJ's Technical Tips: Technologies for Lighting in Rural Africa  

E-Print Network [OSTI]

/a 30 lumens 0.1 Incandescent Bulb 15 W 225 lumens 15 Fluorescent Tube Lamp 10 W 500 lumens 50 White LED Lamp 1 W 30 lumens 30 The data in Table 1 show that incandescent bulbs and fluorescent tubes generate incandescent bulbs are about 150 times more efficient. In other words, electric lights are not only brighter

Jacobson, Arne

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Colin Fink was a pioneer in electrochemical processing of materials. Fink is best known for his ground-breaking developments in the electro-deposi:on of metals, and par:cularly for  

E-Print Network [OSTI]

:le tungsten for incandescent lamp filaments, an insoluble anode used in the copper! ! Invented process to produce ductile tungsten for incandescent lamp filaments! ! Taught S. Ruben, who for incandescent lamp filaments! ! Taught S. Ruben, who invented alkaline baJery (Duracell Company

Columbia University

422

THE HISTORY AND TECHNICAL EVOLUTION OF HIGH FREQUENCY FLUORESCENT LIGHTING  

E-Print Network [OSTI]

B L U E , G R E E N , INCANDESCENT FORM OF LAMPS OF VARIOUSTHE E F F I C I E N C Y INCANDESCENT A P P L I C A T I O N SI M E S , DEPENDING THE THE INCANDESCENT GENERAL LAMPS. THE

Campbell, John H.

2011-01-01T23:59:59.000Z

423

The answer to this question may be found in the following Confucian proverb  

E-Print Network [OSTI]

principle: when you get something hot, it glows. The hot wire filament inside an incandescent light bulb clear incandescent Christmas tree lights · Infrared goggles (optional) Please don't use this activity with incandescent bulbs takes much more power input, and so they'll need to work quite a bit harder. Doing

Hardy, Darel

424

Basic Circuit Measurements and Ohm's Law ECE 2100 Circuit Analysis Laboratory  

E-Print Network [OSTI]

, _______ W low-wattage incandescent light bulb. Also, measure and record the "cold" resistance of such a bulb. 6. Construct the circuit below using the low-wattage incandescent bulb of step 5. Use the Variac frequency. 7. Repeat steps 5 and 6 using a high-wattage incandescent light bulb rated at 120 VAC, ______ W

Miller, Damon A.

425

DUAL USE OF LEDS: SIGNALING AND COMMUNICATIONS IN ITS Grantham Pang, Chi-ho Chan, Hugh Liu, Thomas Kwan  

E-Print Network [OSTI]

of light-emitting diodes (LEDs) over incandescent lights is well-supported. This is due to their high shown that the high brightness LEDs are significantly brighter than the incandescent lights lights with LEDs is a reduction in power consumption [7]. In addition, incandescent traffic signals burn

Pang, Grantham

426

JOURNAL DE PHYSIQUEIV Colloque C4,supplkmentau Journal de Physique 111,Volume4, avril1994  

E-Print Network [OSTI]

from an incandescent lamp and a Article published online by EDP Sciences and available at http imperfections in the device : the heat produced by the incandescent lamp may affect the tissue sample and may and log P) and the penetration depth (lines). #12;C4-256 JOURNALDE PHYSIQUEIV in place of the incandescent

Paris-Sud XI, Université de

427

Control of low-frequency square-wave electronic ballast with resonant ignition using a dsPIC30F2010  

E-Print Network [OSTI]

, theoretically, is a solution to prevent the acoustic resonance provided that the lamp power has no ac component igniter is an external circuit that is coupled to the main power stage by a transformer. In [5 for two-stage HID lamps. The first stage is the power factor correction (PFC) stage, and the second

428

Full-color transflective cholesteric LCD with image-enhanced reflector Yi-Pai Huang, Xinyu Zhu,  

E-Print Network [OSTI]

Optronics Corp., Hsinchu, Taiwan, 300, R.O.C. M-X. Chan, S-H. Lin, and H-P. D. Shieh are with the Institute

Wu, Shin-Tson

429

System performance and cost sensitivity comparisons of stretched membrane heliostat reflectors with current generation glass/metal concepts  

SciTech Connect (OSTI)

Heliostat costs have long been recognized as a major factor in the cost of solar central receiver plants. Research on stretched membrane heliostats has been emphasized because of their potential as a cost-effective alternative to current glass/metal designs. However, the cost and performance potential of stretched membrane heliostats from a system perspective has not been studied until this time. The optical performance of individual heliostats is predicted here using results established in previous structural studies. These performance predictions are used to compare both focused and unfocused stretched membrane heliostats with state-of-the-art glass/metal heliostats from a systems perspective. We investigated the sensitivity of the relative cost and performance of fields of heliostats to a large number of parameter variations, including system size, delivery temperature, heliostat module size, surface specularity, hemispherical reflectance, and macroscopic surface quality. The results indicate that focused stretched membrane systems should have comparable performance levels to those of current glass/metal heliostat systems. Further, because of their relatively lower cost, stretched membrane heliostats should provide an economically attractive alternative to current glass/metal heliostats over essentially the entire range of design parameters studied. Unfocused stretched membrane heliostats may also be attractive for a somewhat more limited range of applications, including the larger plant sizes and lower delivery temperatures.

Murphy, L.M.; Anderson, J.V.; Short, W.; Wendelin, T.

1985-12-01T23:59:59.000Z

430

Integration of Self-Assembled Porous Alumina and Distributed Bragg Reflector for Light Trapping in Si Photovoltaic Devices  

E-Print Network [OSTI]

Light trapping is an important issue for thin film silicon photovoltaic cells due to the limited absorption coefficient for near infrared light. In this letter, we present a photonic structure that combines porous anodic ...

Sheng, Xing

431

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 2, Fluorescent lamp ballasts, television sets, room air conditioners, and kitchen ranges and ovens  

SciTech Connect (OSTI)

This document is divided into ``volumes`` B through E, dealing with individual classes of consumer products. Chapters in each present engineering analysis, base case forecasts, projected national impacts of standards, life-cycle costs and payback periods, impacts on manufacturers, impacts of standards on electric utilities, and environmental effects. Supporting appendices are included.

Not Available

1993-11-01T23:59:59.000Z

432

3180 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 55, NO. 9, SEPTEMBER 2008 Digital Control of a Low-Frequency Square-Wave  

E-Print Network [OSTI]

3180 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 55, NO. 9, SEPTEMBER 2008 Digital Control of a Low-Frequency Square-Wave Electronic Ballast With Resonant Ignition F. Javier Díaz, Francisco J) electronic ballast with digital control. The first stage of the ballast is a power factor correction (PFC

433

Design and Predictive Control of a Net Zero Energy Home  

E-Print Network [OSTI]

the same amount of light as traditional incandescent bulbs with less energy. Incandescent bulbs are inherently inefficient as most of the energy they consume goes towards heat generation. Compact fluorescent (CFL) and light emitting diode (LED) bulbs... as heat [1]. Compact fluorescent lamps (CFLs) and Light Emitting Diodes (LEDs) were analyzed in comparison with incandescent lamps. To determine the most energy efficient bulb, energy consumption for each type of bulb is needed. To do this, the amount...

Morelli, F.; Abbarno, N.; Boese, E.; Bullock, J.; Carter, B.; Edwards, R.; Lapite, O.; Mann, D.; Mulvihill, C.; Purcell, E.; Stein, M. IV; Rasmussen, B. P.

2013-01-01T23:59:59.000Z

434

LED ProspectsLED Prospects photometric units  

E-Print Network [OSTI]

/5/8 #12;16 Light bulb comparisonLight bulb comparison W lumens khours CRI $US Incandescent (long life) 75-life incandescent with LED. · 10 light fixtures/home, lights on for 6h/day, 333 days/yr. · Electricity 0.12 $/kWh. W khours $US Incandescent (long life) 100 10 2 LED (PAR38, warm, dimmable) 11 40 90 · What is the lifetime

Pulfrey, David L.

435

Industrial Lighting Techniques and New Developments  

E-Print Network [OSTI]

families customarily categorized in three major groupings Incandescent, Fluorescent, and High Intensity Discharge sources. In the incandescent family, halogen capsule 'technology has led to many new general lighting sources the 90-Watt and 45-Watt... Par 38 lamps deliver the same light output in the beam as conventional 150- and 75-Watt incandescent Par sources while using 40\\ less wattage and maintaining lamp life. By reducing voltage to the filament in halogen ~apsule sources, lamps can...

Colotti, M. A.

436

Journal of Chemical Ecology, Vol.23, No. 4, 1997 CUTICULAR HYDROCARBONS OF TERMITES OF THE  

E-Print Network [OSTI]

--Cuticularhydrocarbons, chemotaxonomy, Isoptera, tropical ter- mites, gas chromatography, mass spectrometry, Virgin Islands, Caribbean scintillation vials over a single 75-W, reflecting incandescent light.

Yorke, James

437

Driver Circuit for White LED Lamps with TRIAC Dimming Control.  

E-Print Network [OSTI]

??An efficient Light Emitting Diode (LED) lamp driver circuit is proposed for retrofitting the conventionally used incandescent lamps with existing TRIAC dimmer. The dimming featureÖ (more)

Weng, Szu-Jung

2012-01-01T23:59:59.000Z

438

Fabrication of color tunable organic light-emitting diodes by an alignment free mask patterning method  

E-Print Network [OSTI]

that of the incandescent bulb and comparable with that of the fluorescent tube. OLEDs are a true sur- face/area lighting

439

U.S. Energy Information Administration (EIA) - Sector  

Gasoline and Diesel Fuel Update (EIA)

replacement of incandescent bulbs with more efficient compact fluorescent lighting and light-emitting diode (LED) lamps. Among electric end-use services in the residential...

440

STATEMENT OF CONSIDERATIONS REQUEST BY OSRAM SYLVANIA FOR AN...  

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

similar to a frosted incandescent bulb. Use of the ceramic enables the size of the remote phosphor to be minimized while maintaining a sufficient thermal path for...

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

E-Print Network 3.0 - ambient dose equivalent Sample Search Results  

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

175 h. Ambient incandescent lights, however, produced a negligible... laser, light emitting diode ... Source: Yu, Peter K.N. - Department of Physics and Materials Science, City...

442

Semiconductor Science and Technology  

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

controlled illumination via interface with microelectronics. MASSIVE ENERGY SAVINGS Incandescent and fluorescent lamps convert less than 20% of electrical energy into visible...

443

Educators: Are You Ready to Teach Energy Literacy? Join our August...  

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

pedal for power and experience the difference in physical effort necessary to power incandescent, compact fluorescent, and LED lighting. This lesson highlighted Energy Principle 4,...

444

Type of Space Bulb Type #/House Fixture Style Greenhouse #  

E-Print Network [OSTI]

841 360 8 F 32 T8/TL 841 360 9 F 32 T8/TL 841 360 MTPS 216 Ch. 1 F 72 T12 CW/VHO 72 1 Incandescent 60w 72 2 F 72 T12 CW/VHO 72 2 Incandescent 60w 72 5 F 72 T12 CW/VHO 72 5 Incandescent 60w 72 10 F 72 T12 CW/VHO 72 10 Incandescent 60w 72 #12;DR 1009 Ch. 27 F 032/431 4 Seed Chamber Ch. 28 F40T12/ADV 41 6

Pawlowski, Wojtek

445

--No Title--  

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

alike can also reduce power demand, and thus carbon emissions, by replacing the incandescent bulbs in their homes with energy-saving compact fluorescent bulbs. That's a handy...

446

--No Title--  

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

light bulbs, which use 75 percent less energy and last ten times longer than incandescent bulbs, (2) window installation kits, which would improve heat instillation in the...

447

Energy Blog | Department of Energy  

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

2010 Longview, TX has established a program that enables residents to swap out four incandescent light bulbs for four CFLs. | Department of Energy Photo | Government Work | Getting...

448

DOE/LX/07-0324&D1 Secondary Document DMSA C-333-35 Solid Waste...  

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

RCRA regulated hazardousmixed waste formerly stored consisted of a crushed incandescent light bulb base. The Toxic Substances Control Act (TSCA) regulated...

449

Induction Lighting: An Old Lighting Technology Made New Again...  

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

around the same time that his rival, Thomas Edison, was working to improve the incandescent light bulb. In the early 1990s, several major lighting manufacturers introduced...

450

--No Title--  

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

out fixtures to accommodate compact fluorescent bulbs instead of relying on incandescent bulbs. Energy Efficiency and Conservation Block Grants Native Village of Stevens...

451

DOE/LX/07-0087&D1 Secondary Document DMSA C-333-41 Solid Waste...  

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

included welding rods, solder, a Nissen metal marker, fluorescent light starters, incandescent light bulbs and ends, fluorescent light bulb ends, miscellaneous lead pieces, and...

452

CX-003584: Categorical Exclusion Determination | Department of...  

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

community facilities and based on the results of the audits, change fixtures from incandescent to fluorescent lighting. In addition, the IRHA proposes to conduct mechanical...

453

--No Title--  

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

roads The proposed action would involve changing the tribe's street lights from incandescent bulbs to LED lighting fixtures. The City of Fairbanks would provide research it...

454

E-Print Network 3.0 - accidentelle aux iodes Sample Search Results  

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

Centre de mathmatiques Collection: Mathematics 2 L'MISSION LECTRIQUE DU TUNGSTNE INCANDESCENT DANS UNE ATMOSPHRE D'IODE. Summary: 'mission ngative du tungstne; l'influence...

455

Energy Efficiency and Conservation Block Grant Program  

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

retrofits throughout the Village. These lighting retrofits would involve upgrading incandescent light fixtures to those that will accommodate compact fluorescent bulbs. In...

456

DOE/LX/07-0242&D1 Secondary Document DMSA C-400-05 Solid Waste...  

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

fuses, three capacitors, three circuit boards, sixteen vacuum tubes, thirty-two incandescent light bulbs or fluorescent light bulbs, gallon of nitric acid, five aerosol...

457

CX-000133: Categorical Exclusion Determination | Department of...  

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

the funding permits. Residences for the retrofits will be selected based on need. Incandescent bulbs would be replaced with compact fluorescent bulbs. Power consumption would be...

458

1  

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

potentially provide many advantages over standard lighting technologies, such as incandescent bulbs, especially in the areas of efficiency, - 2 - operating lifetime and the...

459

--No Title--  

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

until funds are expended. Retrofits will consist of changing fixtures from incandescent to fluorescent lighting. Recent experience with lighting retrofits in the region...

460

CX-000139: Categorical Exclusion Determination | Department of...  

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

until funds are expended. Retrofits will consist of changing fixtures from incandescent to fluorescent lighting. Recent experience with lighting retrofits in the region...

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

E-Print Network 3.0 - austrag von platin Sample Search Results  

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

glhenden Platins ausgestrahlte Licht (Sur la lumire mise par le platine incandescent); Inaug. Diss... fonction dfinie de sa temprature.. M. Nichions a cherch la...

462

DOE/LX/07-0315&D1 Secondary Document DMSA C-333-14 Solid Waste...  

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

Newly discovered RCRA regulated hazardousmixed waste formerly stored consisted of incandescent light bulbs and light bulb ends, respirator canisters, aerosol cans, and lead...

463

DOE/LX/07-0323&D1 Secondary Document DMSA C-333-15 and DMSA C...  

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

waste formerly stored consisted of a fuse, circuit boards, light bulbs, broken incandescent light bulbs, a light starter, and a container of hand table sludge. The Toxic...

464

EA-1664: Finding of No Significant Impact | Department of Energy  

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

Energy Conservation Standards: Energy Conservation Standards for Fluorescent and Incandescent Lamps The U.S. Department of Energy has determined that the adoption of energy...

465

CX-000136: Categorical Exclusion Determination | Department of...  

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

retrofits for bathrooms of 42 residences. These retrofits would involve upgrading incandescent light fixtures to those that will accommodate compact fluorescent bulbs. It is...

466

--No Title--  

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

retrofits for bathrooms of 42 residences. These retrofits would involve upgrading incandescent light fixtures to those that will accommodate compact fluorescent bulbs. It is...

467

DOE/LX/07-0289&D1 Secondary Document DMSA C-335-05 Solid Waste...  

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

discovered RCRA regulated hazardous waste formerly stored included two 1-inch incandescent light bulbs and an aerosol can of starter fluid (ether). Newly generated RCRA...

468

E-Print Network 3.0 - arc lamp heal Sample Search Results  

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

particularly... sources and mechanical wafer transport; or electrical lamps, either incandescent or arc, with programmed... in lamp FIG. 1. Temperature sensor signal vs time for...

469

Energy Performance Assessment for Equipment and Utility Systems...  

Open Energy Info (EERE)

Energy Standards, Feebates, Feed-in Tariffs, Fuel Efficiency Standards, Incandescent Phase-Out, MandatesTargets, Net Metering & Interconnection, Resource Integration...

470

Energy Efficiency and Conservation Block Grant Program  

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

community facilities and based on the results of the audits, change fixtures from incandescent to fluorescent lighting. In addition, the IRHA proposes to conduct mechanical...

471

Energy Efficiency and Conservation Block Grant Program  

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

upgrades, and technology upgrades; 3) LED traffic signal conversion to replace incandescent bulbs to light-emitting diodes. Conditions: Historic preservation clause applies to...

472

CX-000137: Categorical Exclusion Determination | Department of...  

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

out fixtures to accommodate compact fluorescent bulbs instead of relying on incandescent bulbs. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-000137.pdf More Documents &...

473

--No Title--  

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

the funding permits. Residences for the retrofits will be selected based on need. Incandescent bulbs would be replaced with compact fluorescent bulbs. Power consumption would be...

474

CX-003246: Categorical Exclusion Determination | Department of...  

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

retrofits throughout the Village. These lighting retrofits would involve upgrading incandescent light fixtures to those that will accommodate compact fluorescent bulbs. In...

475

STATEMENT OF CONSIDERATIONS PETITION FOR ADVANCE WAIVER OF PATENT...  

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

is to develop a solid state LED lamp that is a viable replacement for inefficient incandescent general lighting sources. This work is funded under DOE's Office of Energy...

476

Top 8 Things You Didn't Know About Thomas Alva Edison | Department...  

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

and engineers -- pioneered improvements to a variety of inventions, including the incandescent light bulb. 6. Edison left a profound impact on the nation's energy sector. Beyond...

477

C-340 ST-90 Boxes Solid Waste Management Unit (SWMU) Assessment...  

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

WASTE DESCRIPTION: Along with non-RCRA regulated wastes, one ST-90 contained two incandescent light bulbs. The low-level waste (LLW) previously stored included paper, plastic,...

478

DOE/LX/07-0286&D1 Secondary Document DMSA C-337-41 Solid Waste...  

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

hazardousmixed waste formerly stored included ceramic insulators with lead, incandescent light bulbs, a vacuum tube, and a mercury switch. The Toxic Substances Control Act...

479

E-Print Network 3.0 - aux iodes radioactifs Sample Search Results  

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

Centre de mathmatiques Collection: Mathematics 2 L'MISSION LECTRIQUE DU TUNGSTNE INCANDESCENT DANS UNE ATMOSPHRE D'IODE. Summary: 'mission ngative du tungstne; l'influence...

480

Statement by Energy Secretary Steven Chu on New Clean Energy...  

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

applications such as cell phones and PDA screens. OLED and LED technologies are up to ten times more efficient than conventional incandescent lights. When widely adopted, LEDs...

Note: This page contains sample records for the topic "ballasts incandescent reflector" 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

Understanding Drooping Light Emitting Diodes CEEM | U.S. DOE...  

Office of Science (SC) Website

Impact Understanding "droop" may result in cheaper, more efficient LEDs; LEDs are more energy efficient, smaller, and longer-lived than incandescent lamps or fluorescent...

482

CX-004724: Categorical Exclusion Determination | Department of...  

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

Office Sandia National LaboratoriesCalifornia (SNLCA) will develop a novel fieldable laser-induced incandescence sensor to measure black carbon (BC) and brown carbon (BrC)...

483

--No Title--  

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

18 months at current operating cycles. Incandescent bulbs can be replaced with Light Emitting Diode lamps that use approximately 10 watts of electricity, have a five year...

484

CX-002177: Categorical Exclusion Determination | Department of...  

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

incandescent traffic signal heads and pedestrian displays to energy efficient light-emitting diode displays; and 3) improve traffic signal system operations and efficiency by...

485

U.S. Department of Energy Office of Energy Efficiency and Renewable...  

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

incandescent traffic signal heads and pedestrian displays to energy efficient light-emitting diode displays; and 3) improve traffic signal system operations and efficiency by...

486

CX-000135: Categorical Exclusion Determination | Department of...  

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

involve changing the Tribe's street lights from incandescent bulbs to LED (light-emitting diode) lighting fixtures. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-000135.pdf More...

487

CX-006328: Categorical Exclusion Determination | Department of...  

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

conditioning upgrades, building envelope upgrades, and technology upgrades; 3) light emitting diode traffic signal conversion to replace incandescent bulbs to light-emitting...

488

CX-004962: Categorical Exclusion Determination | Department of...  

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

halide light fixtures in the City Hall and Community Center parking lots with light-emitting diode (LED) light fixtures; and 3) replace incandescent light bulbs on traffic...

489

CX-003657: Categorical Exclusion Determination | Department of...  

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

light bulb retrofits, and 5) incandescent traffic signal replacement with light-emitting diode technology. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-003657.pdf More Documents &...

490

FIND A BIN, IT ALL GOES IN all types of paper  

E-Print Network [OSTI]

containers · ceramics, mirrors, windows, pyrex · incandescent light bulbs HAZARDOUS WASTE & CONFIDENTIAL: flatten next to containers, or place in marked dumpsters SPECIAL RECYCLING ITEMS: containers located

Thaxton, Christopher S.

491

EVOLUTION OF BLACK CARBON MIXING-STATE IN AN URBAN-BIOGENIC ENVIRONMENT  

E-Print Network [OSTI]

of the Carbonaceous Aerosol and Radiative Effects Study (CARES), the Department of Energy Gulfstream-1 (DOE G-1) and the incandescent signal peak from the BC core (BC; mass equivalent diameter = 60 - 650 nm). For nascent soot that must first "boil" off before the BC core can incandesce. It is this time ­ to vaporize the coating

492

Electrical modulation of emissivity S. Vassant,1  

E-Print Network [OSTI]

, it is difficult to develop an efficient light emitting diode because the spontaneous emission rate is proportional emitting diodes. Yet, incandescent sources are often the only option in the infrared (IR). Indeed tens of Hz. Hence, for many applications, incandescent light sources can- not compete with light

Paris-Sud XI, Université de

493

Power Planning Challenges in a Fast MarketChallenges in a Fast Market  

E-Print Network [OSTI]

Incandescent 10 80 Downlight CFL 40 88 But it's not all about efficacy: · Cost · Life O t t 4Foot Linear, nondimmable at bottom, and dimmable at top). , p) A halogen incandescent costs about $2.50/klm today. #12

494

SUR LA LUMIRE POSITIVE ET LE PASSAGE DE L'LECTRICIT DANS LES GAZ ; Par M. P. VILLARD.  

E-Print Network [OSTI]

on chauffe fortement une région cesse d'être lumineux dans cette région ; un fil incandescent placé dans ce tube crée autour de lui un espace obscur : or on sait qu'un corps incandescent érnet des ions en

Boyer, Edmond

495

3Water on Planetary Surfaces Space is very cold!  

E-Print Network [OSTI]

incandescent bulb consume if left on for 1 hour? Problem 2: A house consumes about 3,000 kilowatts in one hour, in Joules, does a 100 watt incandescent bulb consume if left on for 1 hour? Answer: 100 watts is the same

496

System Architecture Directions for a Software-Defined Lighting Infrastructure  

E-Print Network [OSTI]

spectrum of an outdoor environment and a typical fluorescent tube-lit office space. Indoor spectrum to incandescent and fluorescent lights. Unfortunately, the remarkable march of semiconductor technology a renaissance. The staple of illumi- nation for one and a half centuries, the incandescent bulb, is being phased

Dutta, Prabal

497

Experimental demonstration of a broadband all-dielectric metamaterial perfect reflector Parikshit Moitra, Brian A. Slovick, Zhi Gang Yu, S. Krishnamurthy, and Jason Valentine  

E-Print Network [OSTI]

-silicon metamaterial with hyperbolic transition in near infrared Appl. Phys. Lett. 103, 021905 (2013); 10 a correlation between the degree of disorder and the reduction in reflectance. It is shown that near-unity reflection is preserved as long as resonator interaction is avoided. Realization of near-unity reflection

Simaan, Nabil

498

Ultrafast and widely tuneable vertical-external-cavity surface-emitting laser, mode-locked by a graphene-integrated distributed Bragg reflector  

E-Print Network [OSTI]

We report a versatile and cost-effective way of controlling the unsaturated loss, modulation depth and saturation fluence of graphene-based saturable absorbers (GSAs), by changing the thickness of a spacer between SLG and a high-reflection mirror. This allows us to modulate the electric field intensity enhancement at the GSA from 0 up to 400%, due to the interference of incident and reflected light at the mirror. The unsaturated loss of the SLG-mirror-assembly can be reduced to$\\sim$0. We use this to mode-lock a VECSEL from 935 to 981nm. This approach can be applied to integrate SLG into various optical components, such as output coupler mirrors, dispersive mirrors, dielectric coatings on gain materials. Conversely, it can also be used to increase absorption (up to 10%) in various graphene based photonics and optoelectronics devices, such as photodetectors.

Zaugg, C A; Wittwer, V J; Popa, D; Milana, S; Kulmala, T; Sundaram, R S; Mangold, M; Sieber, O D; Golling, M; Lee, Y; Ahn, J H; Ferrari, A C; Keller, U

2013-01-01T23:59:59.000Z

499

Novel instrumentation for a scattering independent measurement of the absorption coefficient of natural waters, and a new diffuse reflector for spectroscopic instrumentation and close cavity coupling  

E-Print Network [OSTI]

and water visibility (Secchi depth); both of these change dramatically throughout the day, as the Sun traverses the sky. When discussing apparent optical properties it is often useful to specify the radiance L and the irradiance E. Radiance is the energy... and homogeneous field in the inner cavity. A fiber optic cable samples the inner cavity?s light field at the midpoint of the quartz tube. A reference signal is collected by a fiber optic cable located in the outer cavity. To obtain the raw absorption signal...

Musser, Joseph Alan

2007-04-25T23:59:59.000Z

500

Midtemperature solar systems test facility predictions for thermal performance based on test data: AAI solar collector with pressure-formed glass reflector surface  

SciTech Connect (OSTI)

Sandia National Laboratories, Albuquerque (SNLA), is currently conducting a program to predict the performance and measure the characteristics of commercially available solar collectors that have the potential for use in industrial process heat and enhance oil recovery applications. The thermal performance predictions for the AAI solar line-focusing slat-type collector for five cities in the US are presented. (WHK)

Harrison, T.D.

1981-03-01T23:59:59.000Z