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We encourage you to perform a real-time search of NLEBeta
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1

Simple Modular LED Cost Model  

Broader source: Energy.gov [DOE]

The LED Cost Model, developed by the DOE Cost Modeling Working Group, provides a simplified method for analyzing the manufacturing costs of an LED package. The model focuses on the major cost...

2

Reducing LED Costs Through Innovation  

Broader source: Energy.gov [DOE]

A Wisconsin-based company is developing an innovative way to reduce manufacturing costs of light-emitting diodes (LEDs).

3

Low-Cost Illumination-Grade LEDs  

SciTech Connect (OSTI)

Solid State Lighting is a cost-effective, energy-conserving technology serving a rapidly expand- ing multi-billion dollar market. This program was designed to accelerate this lighting revolution by reducing the manufacturing cost of Illumination-Grade LEDs. The technical strategy was to investigate growth substrate alternatives to standard planar sapphire, select the most effective and compatible option, and demonstrate a significant increase in Lumen/$ with a marketable LED. The most obvious alternate substrate, silicon, was extensively studied in the first two years of the program. The superior thermal and mechanical properties of Si were expected to improve wavelength uniformity and hence color yield in the manufacture of high-power illumination- grade LEDs. However, improvements in efficiency and epitaxy uniformity on standard c-plane sapphire diminished the advantages of switching to Si. Furthermore, the cost of sapphire decreased significantly and the cost of processing Si devices using our thin film process was higher than expected. We concluded that GaN on Si was a viable technology but not a practical option for Philips Lumileds. Therefore in 2012 and 2013, we sought and received amendments which broadened the scope to include other substrates and extended the time of execution. Proprietary engineered substrates, off-axis (non-c-plane) sapphire, and c-plane patterned sapphire substrates (PSS) were all investigated in the final 18 months of this program. Excellent epitaxy quality was achieved on all three candidates; however we eliminated engineered substrates and non-c-plane sapphire because of their higher combined cost of substrate, device fabrication and packaging. Ultimately, by fabricating a flip-chip (FC) LED based upon c-plane PSS we attained a 42% reduction in LED manufacturing cost relative to our LUXEON Rebel product (Q1-2012). Combined with a flux gain from 85 to 102 Lm, the LUXEON Q delivered a 210% increase in Lm/$ over this time period. The technology was commercialized in our LUXEON Q product in Sept., 2013. Also, the retention of the sapphire increased the robustness of the device, enabling sales of low-cost submount-free chips to lighting manufacturers. Thus, blue LED die sales were initiated in the form of a PSS-FC in February, 2013.

Epler, John

2013-08-31T23:59:59.000Z

4

Modeling LED street lighting  

Science Journals Connector (OSTI)

LED luminaires may deliver precise illumination patterns to control light pollution, comfort, visibility, and light utilization efficiency. Here, we provide simple equations to...

Moreno, Ivan; Avendaño-Alejo, Maximino; Saucedo-A, Tonatiuh; Bugarin, Alejandra

2014-01-01T23:59:59.000Z

5

A New, Simple, "universal", Low Cost LED Driver and Controller  

E-Print Network [OSTI]

A New, Simple, "universal", Low Cost LED Driver and Controller Akram M. Fayaz Sup´elec Department:daniel.sadarnac@supelec.fr Abstract--In this paper a new LED driver and its controller are conceived realized and experimentally approach the average current through the LED is directly regulated. The proposed driver is built around

Paris-Sud XI, Université de

6

Reducing LED Costs Through Innovation | Department of Energy  

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

Reducing LED Costs Through Innovation Reducing LED Costs Through Innovation Reducing LED Costs Through Innovation November 19, 2013 - 3:49pm Addthis A combination solid-state laser turret cutter and stamping machine cuts a thin steel plate that will be formed into lighting fixture housing. Wisconsin-based Eaton Corporation is developing a new manufacturing process that streamlines LED fixture designs. | Photo courtesy of Eaton Corporation A combination solid-state laser turret cutter and stamping machine cuts a thin steel plate that will be formed into lighting fixture housing. Wisconsin-based Eaton Corporation is developing a new manufacturing process that streamlines LED fixture designs. | Photo courtesy of Eaton Corporation A goniometer measures the photometric output distribution of an outdoor LED street light fixture. Researchers at Eaton are developing a new manufacturing process will enable LED chips to sit directly on heat sinks, improving heat transfer. | Photo courtesy of Eaton Corporation

7

LOW-COST LED LUMINAIRE FOR GENERAL ILLUMINATION  

SciTech Connect (OSTI)

During this two-year Solid-State Lighting (SSL) Manufacturing R&D project Cree developed novel light emitting diode (LED) technologies contributing to a cost-optimized, efficient LED troffer luminaire platform emitting at ~3500K correlated color temperature (CCT) at a color rendering index (CRI) of >90. To successfully achieve program goals, Cree used a comprehensive approach to address cost reduction of the various optical, thermal and electrical subsystems in the luminaire without impacting performance. These developments built on Cree’s high- brightness, low-cost LED platforms to design a novel LED component architecture that will enable low-cost troffer luminaire designs with high total system efficacy. The project scope included cost reductions to nearly all major troffer subsystems as well as assembly costs. For example, no thermal management components were included in the troffer, owing to the optimized distribution of compact low- to mid-power LEDs. It is estimated that a significant manufacturing cost savings will result relative to Cree’s conventional troffers at the start of the project. A chief project accomplishment was the successful development of a new compact, high-efficacy LED component geometry with a broad far-field intensity distribution and even color point vs. emission angle. After further optimization and testing for production, the Cree XQ series of LEDs resulted. XQ LEDs are currently utilized in Cree’s AR series troffers, and they are being considered for use in other platforms. The XQ lens geometry influenced the independent development of Cree’s XB-E and XB-G high-voltage LEDs, which also have a broad intensity distribution at high efficacy, and are finding wide implementation in Cree’s omnidirectional A-lamps.

Lowes, Ted

2014-07-31T23:59:59.000Z

8

Model Specification for LED Roadway Luminaires  

Broader source: Energy.gov [DOE]

The DOE Municipal Solid-State Street Lighting Consortium's Model Specification for LED Roadway Luminaires enables cities, utilities, and other state and local agencies to assemble effective bid...

9

Model Specification for LED Roadway Luminaires Webcast  

Broader source: Energy.gov [DOE]

This November 15, 2011 webcast presented information about the Model Specification for LED Roadway Luminaires developed by DOE's Municipal Solid-State Street Lighting Consortium. During the webcast...

10

LEDs  

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

Biomedical devices from ultraviolet Biomedical devices from ultraviolet LEDs February 24, 2012 LEDs produce light in the ultraviolet range A process for creating glass-based, inorganic light-emitting diodes (LEDs) that produce light in the ultraviolet range has been developed by a multinational team of scientists. The work, reported in the online Nature Communications, is a step toward biomedical devices with active components made from nanostructured systems. Solution-processed inorganic nanocrystals hold promise LEDs based on solution-processed inorganic nanocrystals have promise for use in environmental and biomedical diagnostics because they are cheap to produce, - 2 - robust, and chemically stable. But development has been hampered by the difficulty of achieving ultraviolet emission. In their paper, LANL's Sergio Brovelli and a research team lead by Alberto Paleari at the

11

KLA-Tencor's Inspection Tool Reduces LED Manufacturing Costs  

Broader source: Energy.gov [DOE]

With the help of DOE funding, KLA-Tencor is developing an improved inspection tool for LED manufacturing that promises to significantly increase overall process yields and minimize expensive waste. The power of the inspection tool lies in optical detection techniques coupled with defect source analysis software to statistically correlate front-end geometric anomalies in the substrate to killer defects on the back end of the manufacturing line, which give rise to an undesirable or unusable end product.

12

CALiPER Report 21.3: Cost-Effectiveness of Linear (T8) LED Lamps  

SciTech Connect (OSTI)

Meeting performance expectations is important for driving adoption of linear LED lamps, but cost-effectiveness may be an overriding factor in many cases. Linear LED lamps cost more initially than fluorescent lamps, but energy and maintenance savings may mean that the life-cycle cost is lower. This report details a series of life-cycle cost simulations that compared a two-lamp troffer using LED lamps (38 W total power draw) or fluorescent lamps (51 W total power draw) over a 10-year study period. Variables included LED system cost ($40, $80, or $120), annual operating hours (2,000 hours or 4,000 hours), LED installation time (15 minutes or 30 minutes), and melded electricity rate ($0.06/kWh, $0.12/kWh, $0.18/kWh, or $0.24/kWh). A full factorial of simulations allows users to interpolate between these values to aid in making rough estimates of economic feasibility for their own projects. In general, while their initial cost premium remains high, linear LED lamps are more likely to be cost-effective when electric utility rates are higher than average and hours of operation are long, and if their installation time is shorter.

Miller, Naomi J.; Perrin, Tess E.; Royer, Michael P.

2014-05-27T23:59:59.000Z

13

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.

14

Applied Materials Develops an Advanced Epitaxial Growth System to Bring Down LED Costs  

Broader source: Energy.gov [DOE]

With the help of DOE funding, Applied Materials has developed an advanced epitaxial growth system for gallium nitride (GaN) LED devices that decreases operating costs, increases internal quantum efficiency, and improves binning yields.

15

A model for LED spectra at different drive currents  

Science Journals Connector (OSTI)

A mathematical model for the spectra of monocolor light-emitting diodes (LEDs) and phosphor-coated white LEDs at different drive currents is established. The simulation program of the...

He, Guoxin; Zheng, Lihong

2010-01-01T23:59:59.000Z

16

Model Specification for LED Roadway Luminaires, V2.0  

Broader source: Energy.gov [DOE]

Version 2.0 of the Model Specification for LED Roadway Luminaires is now available. Changes are substantial and include streamlined structure and formatting, new diagrams, updated references, and leveraging of LED Lighting Facts® program guidance.

17

Veeco Develops a Tool to Reduce Epitaxy Costs and Increase LED Brightness  

Broader source: Energy.gov [DOE]

With the help of DOE funding, Veeco is working on reducing epitaxy costs and increasing LED efficiency by developing a physical vapor deposition (PVD) tool for depositing aluminum nitride buffer layers on LED substrates. PVD, also known as "sputtering," is an alternative to metal-organic chemical vapor deposition (MOCVD). PVD is a purely physical process that involves plasma sputter bombardment rather than a chemical reaction at the surface to be coated, as in MOCVD.

18

DOE Publishes CALiPER Report on Cost-Effectiveness of Linear (T8) LED Lamps  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy's CALiPER program has released Report 21.3, which is part of a series of investigations on linear LED lamps. Report 21.3 details a set of life-cycle cost simulations that compared a two-lamp troffer using LED lamps (38W total power draw) or fluorescent lamps (51W total power draw) over a 10-year study period.

19

Philips Lumileds Is Exploring the Use of Silicon Substrates to Lower the Cost of LEDs  

Broader source: Energy.gov [DOE]

With the help of DOE funding, Philips Lumileds is exploring the use of nitride epitaxy on 150mm silicon substrates to produce low-cost, warm-white, high-performance general-illumination LEDs. Most LEDs are made with C-plane sapphire substrates, but silicon—at roughly half a penny per square millimeter—is much cheaper, and it's also easier to obtain. Philips Lumileds is attempting to adapt the use of silicon to the manufacture of LEDs, drawing upon the knowledge base and depreciated equipment of the computer industry, which has been using silicon substrates for decades.

20

Cost Model and Cost Estimating Software  

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

This chapter discusses a formalized methodology is basically a cost model, which forms the basis for estimating software.

1997-03-28T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

LED Light Fixture Project FC1 Director's Conference Room: Life Cycle Cost and Break-even Analysis  

E-Print Network [OSTI]

LED Light Fixture Project ­ FC1 Director's Conference Room: Life Cycle Cost and Break-even Analysis sources. One of the emerging lighting technologies that facilities organizations are looking at are LEDs. A light-emitting diode (LED) is a solid-state lighting source that switches on instantly, is readily

Johnston, Daniel

22

A simple and low-cost biofilm quantification method using LED and CMOS image sensor  

Science Journals Connector (OSTI)

Abstract A novel biofilm detection platform, which consists of a cost-effective red, green, and blue light-emitting diode (RGB LED) as a light source and a lens-free CMOS image sensor as a detector, is designed. This system can measure the diffraction patterns of cells from their shadow images, and gather light absorbance information according to the concentration of biofilms through a simple image processing procedure. Compared to a bulky and expensive commercial spectrophotometer, this platform can provide accurate and reproducible biofilm concentration detection and is simple, compact, and inexpensive. Biofilms originating from various bacterial strains, including Pseudomonas aeruginosa (P. aeruginosa), were tested to demonstrate the efficacy of this new biofilm detection approach. The results were compared with the results obtained from a commercial spectrophotometer. To utilize a cost-effective light source (i.e., an LED) for biofilm detection, the illumination conditions were optimized. For accurate and reproducible biofilm detection, a simple, custom-coded image processing algorithm was developed and applied to a five-megapixel CMOS image sensor, which is a cost-effective detector. The concentration of biofilms formed by P. aeruginosa was detected and quantified by varying the indole concentration, and the results were compared with the results obtained from a commercial spectrophotometer. The correlation value of the results from those two systems was 0.981 (N = 9, P  < 0.01) and the coefficients of variation (CVs) were approximately threefold lower at the CMOS image-sensor platform.

Yeon Hwa Kwak; Junhee Lee; Junghoon Lee; Soo Hwan Kwak; Sangwoo Oh; Se-Hwan Paek; Un-Hwan Ha; Sungkyu Seo

2014-01-01T23:59:59.000Z

23

Philips Light Sources & Electronics is Developing an Efficient, Smaller, Cost-Effective Family of LED Drivers  

Broader source: Energy.gov [DOE]

With the help of DOE funding, Philips Light Sources & Electronics is developing a new family of LED drivers that are more efficient and cost-effective as well as smaller in size than currently available drivers. The new drivers are switch-mode power supplies that are similar to today's drivers, but with an improved design. In addition, they have a different topology—boost plus LLC—for wattages of 40W and above, but they retain the commonly used flyback topology at lower wattages.

24

Abbreviated epitaxial growth mode (AGM) method for reducing cost and improving quality of LEDs and lasers  

DOE Patents [OSTI]

The use of an abbreviated GaN growth mode on nano-patterned AGOG sapphire substrates, which utilizes a process of using 15 nm low temperature GaN buffer and bypassing etch-back and recovery processes during epitaxy, enables the growth of high-quality GaN template on nano-patterned AGOG sapphire. The GaN template grown on nano-patterned AGOG sapphire by employing abbreviated growth mode has two orders of magnitude lower threading dislocation density than that of conventional GaN template grown on planar sapphire. The use of abbreviated growth mode also leads to significant reduction in cost of the epitaxy. The growths and characteristics of InGaN quantum wells (QWs) light emitting diodes (LEDs) on both templates were compared. The InGaN QWs LEDs grown on the nano-patterned AGOG sapphire demonstrated at least a 24% enhancement of output power enhancement over that of LEDs grown on conventional GaN templates.

Tansu, Nelson; Chan, Helen M; Vinci, Richard P; Ee, Yik-Khoon; Biser, Jeffrey

2013-09-24T23:59:59.000Z

25

Philips Lumileds Develops a Low-Cost, High-Power, Warm-White LED Package  

Broader source: Energy.gov [DOE]

With the help of DOE funding, Philips Lumileds has developed a low-cost, high-power, warm-white LED package for general illumination. During the course of the two-year project, this package was used to commercialize a series of products with correlated color temperatures (CCTs) ranging from 2700 to 5700 K, under the product name LUXEON M. A record efficacy of nearly 125 lm/W was demonstrated at a flux of 1023 lumens, a CCT of 3435 K, and a color rendering index (CRI) of more than 80 at room temperature in the productized package. In an R&D package, a record efficacy of more than 133 lm/W at a flux of 1015 lumens, a CCT of 3475 K, and a CRI greater than 80 at room temperature were demonstrated.

26

Driving Down HB-LED Costs: Implementation of Process Simulation Tools and Temperature Control Methods of High Yield MOCVD Growth  

SciTech Connect (OSTI)

The overall objective of this multi-faceted program is to develop epitaxial growth systems that meet a goal of 75% (4X) cost reduction in the epitaxy phase of HB-LED manufacture. A 75% reduction in yielded epitaxy cost is necessary in order to achieve the cost goals for widespread penetration of HB-LEDâ??s into back-lighting units (BLU) for LCD panels and ultimately for solid-state lighting (SSL). To do this, the program will address significant improvements in overall equipment Cost of Ownership, or CoO. CoO is a model that includes all costs associated with the epitaxy portion of production. These aspects include cost of yield, capital cost, operational costs, and maintenance costs. We divide the program into three phases where later phases will incorporate the gains of prior phases. Phase one activities are enabling technologies. In collaboration with Sandia National Laboratories we develop a Fluent-compatible chemistry predictive model and a set of mid-infrared and near-ultraviolet pyrometer monitoring tools. Where previously the modeling of the reactor dynamics were studied within FLUENT alone, here, FLUENT and Chemkin are integrated into a comprehensive model of fluid dynamics and the most advanced transport equations developed for Chemkin. Specifically, the Chemkin model offered the key reaction terms for gas-phase nucleation, a key consideration in the optimization of the MOCVD process. This new predictive model is used to design new MOCVD reactors with optimized growth conditions and the newly developed pyrometers are used monitor and control the MOCVD process temperature to within 0.5°C run-to-run and within each wafer. This portion of the grant is in collaboration with partners at Sandia National Laboratories. Phase two activities are continuous improvement projects which extend the current reactor platform along the lines of improved operational efficiency, improved systems control for throughput, and carrier modifications for increased yield. Programmatically, improvements made in Phase I are applied to developments of Phase II when applicable. Phase three is the culmination of the individual tasks from both phases one and two applied to proposed production platforms. We selectively combine previously demonstrated tasks and other options to develop a high-volume production-worthy MOCVD system demonstrating >3x throughput, 1.3x capital efficiency, and 0.7x cost of ownership. In a parallel demonstration we validate the concept of an improved, larger deposition system which utilizes the predictive modeling of chemistry-based flow analysis and extensions of the improvements demonstrated on the current platforms. This validation includes the build and testing of a prototype version of the hardware and demonstration of 69% reduction in the cost of ownership. Also, in this phase we present a stand-alone project to develop a high-temperature system which improves source efficiency by 30% while concurrently increasing growth rate by 1.3x. The material quality is held to the same material quality specifications of our existing baseline processes. The merits of other line item tasks in phase three are discussed for inclusion on next-generation platforms.

William Quinn

2012-04-30T23:59:59.000Z

27

Tokamak reactor cost model based on STARFIRE/WILDCAT costing  

SciTech Connect (OSTI)

A cost model is presented which is useful for survey and comparative studies of tokamak reactors. The model is heavily based on STARFIRE and WILDCAT costing guidelines, philosophies, and procedures and reproduces the costing for these devices quite accurately.

Evans, K. Jr.

1983-03-01T23:59:59.000Z

28

LED Phosphor Modeling and Color Optimization in OptisWorks  

Science Journals Connector (OSTI)

OPTIS has developed in OptisWorks an editor for LED phosphor dyes which take into account physics based measureable spectra information as well as the volume scattering ...

Hasna, Günther

29

Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast  

Broader source: Energy.gov [DOE]

Below is the text-alternative version of the "Model Specification for LED Roadway Luminaires" webcast, held November 15, 2011.

30

Low Cost Carbon Fiber Production Carbon Fiber Manufacturing Cost Modeling  

E-Print Network [OSTI]

Low Cost Carbon Fiber Production Carbon Fiber Manufacturing Cost Modeling Oak Ridge National fiber reinforced composites have enjoyed limited acceptance in the automotive industry due to high costs to bond with composite matrix material. It is important that a carbon fiber manufacturing cost model

31

Current-voltage model of LED light sources Szymon Bczkowski, Stig Munk-Nielsen  

E-Print Network [OSTI]

Current-voltage model of LED light sources Szymon Bczkowski, Stig Munk-Nielsen Department of Energy shifts caused by varying magnitude of LED driving current and nonlinear relationship between intensity radiation into visible light, are gradually being replaced by light-emitting diodes. The invention of LEDs

Munk-Nielsen, Stig

32

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

SciTech Connect (OSTI)

Flashlight usage is widespread across much of sub-Saharan Africa.1 In Kenya in particular, over half of all households report owning a flashlight (Kamfor, 2002). Aside from household use, flashlights are also widely used to perform income-earning jobs in Kenya. Lumina Research Note No.4, the first report in this series documenting flashlight use in Kenya, highlights flashlight use patterns of night watchmen and bicycle taxi drivers. Both of these are occupations that rely on the use of flashlights on a nightly basis (Tracy et al., 2009). Also highlighted by Research Note No.4, flashlight users in Kenya have reported being highly dissatisfied with the quality of the low-cost LED flashlights that are available, and they identify several reoccurring problems they have faced as flashlight end-users (Tracy et al., 2009). The fact that there exists a substantial dependency upon flashlights in Kenya and that users are disgruntled with the available products suggests reasons for concern about flashlight quality. This concern is present despite two recent technological transitions in the flashlight market. First, LED technology has quickly emerged as the dominant 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, and low-cost LEDs have achieved price levels that make them cost competitive with conventional lighting sources for a number of applications (Mills, 2005). Second, rechargeable sealed-lead acid (SLA) batteries are also becoming more prevalent alternatives to disposable dry cell batteries. Flashlights using rechargeable SLA batteries tend to have a lower total cost of ownership over a two-year period than a flashlight using dry cell batteries (Radecsky, 2009); however, as this current report highlights, this may vary depending on the intensity of use patterns. To avoid a potential market spoiling effect for off-grid lighting products based on LED technology (Mills and Jacobson, 2008; Lighting Africa, 2007) a better understanding of flashlight use-patterns is crucial (Tracy et al., 2009). In addition, the economic implications faced by rural flashlight end-users provide further incentive for a move toward higher quality low-cost flashlights. In this report, our team uses interviews with 46 end users of flashlights to collect information about their use patterns and costs associated with owning and operating flashlight products. While flashlights used in their portable mode typically do not represent a substitute for kerosene or other forms of fuel-based lighting, at times they are used in stationary applications in place of a fuel-based lamp. In either case, these products often represent end users first exposure to LED technology and rechargeable dry cell batteries, and thus stand to either provide a positive or negative impression of these technologies for a diversity of lighting applications.

Tracy, Jennifer; Jacobson, Arne; Mills, Evan

2010-02-16T23:59:59.000Z

33

Solid-State Lighting: Text-Alternative Version: Model Specification for LED  

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

Information Information Resources Printable Version Share this resource Send a link to Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast on Google Bookmark Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast on Delicious Rank Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast on Digg

34

Total cost model for making sourcing decisions  

E-Print Network [OSTI]

This thesis develops a total cost model based on the work done during a six month internship with ABB. In order to help ABB better focus on low cost country sourcing, a total cost model was developed for sourcing decisions. ...

Morita, Mark, M.B.A. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

35

NUCLEAR ENERGY SYSTEM COST MODELING  

SciTech Connect (OSTI)

The U.S. Department of Energy’s Fuel Cycle Technologies (FCT) Program is preparing to perform an evaluation of the full range of possible Nuclear Energy Systems (NES) in 2013. These include all practical combinations of fuels and transmuters (reactors and sub-critical systems) in single and multi-tier combinations of burners and breeders with no, partial, and full recycle. As part of this evaluation, Levelized Cost of Electricity at Equilibrium (LCAE) ranges for each representative system will be calculated. To facilitate the cost analyses, the 2009 Advanced Fuel Cycle Cost Basis Report is being amended to provide up-to-date cost data for each step in the fuel cycle, and a new analysis tool, NE-COST, has been developed. This paper explains the innovative “Island” approach used by NE-COST to streamline and simplify the economic analysis effort and provides examples of LCAE costs generated. The Island approach treats each transmuter (or target burner) and the associated fuel cycle facilities as a separate analysis module, allowing reuse of modules that appear frequently in the NES options list. For example, a number of options to be screened will include a once-through uranium oxide (UOX) fueled light water reactor (LWR). The UOX LWR may be standalone, or may be the first stage in a multi-stage system. Using the Island approach, the UOX LWR only needs to be modeled once and the module can then be reused on subsequent fuel cycles. NE-COST models the unit operations and life cycle costs associated with each step of the fuel cycle on each island. This includes three front-end options for supplying feedstock to fuel fabrication (mining/enrichment, reprocessing of used fuel from another island, and/or reprocessing of this island’s used fuel), along with the transmuter and back-end storage/disposal. Results of each island are combined based on the fractional energy generated by each islands in an equilibrium system. The cost analyses use the probability distributions of key parameters and employs Monte Carlo sampling to arrive at an island’s cost probability density function (PDF). When comparing two NES to determine delta cost, strongly correlated parameters can be cancelled out so that only the differences in the systems contribute to the relative cost PDFs. For example, one comparative analysis presented in the paper is a single stage LWR-UOX system versus a two-stage LWR-UOX to LWR-MOX system. In this case, the first stage of both systems is the same (but with different fractional energy generation), while the second stage of the UOX to MOX system uses the same type transmuter but the fuel type and feedstock sources are different. In this case, the cost difference between systems is driven by only the fuel cycle differences of the MOX stage.

Francesco Ganda; Brent Dixon

2012-09-01T23:59:59.000Z

36

Modeling of dimmable High Power LED illumination distribution using ANFIS on the isolated area  

Science Journals Connector (OSTI)

High power light emitting diodes (HP-LEDs) are more suitable for energy saving applications and have becoming replacing traditional fluorescent and incandescent bulbs for its energy efficient. Therefore, HP-LED lighting has been regarded in the next-generation lighting. In this study, illumination distribution of white color HP-LED is modeled by adaptive neuro-fuzzy inference system (ANFIS) approach on the isolated area while LED head is fixed. Subtractive clustering with hybrid learning approach is used to train the realized ANFIS architectures. End of the numerous experiment we finally concluded that, ANFIS could be used to modeling the illumination distribution applications perfectly.

?smail Kiyak; Vedat Topuz; Bülent Oral

2011-01-01T23:59:59.000Z

37

An integrated cost model for software reuse  

Science Journals Connector (OSTI)

Several cost models have been proposed in the past for estimating, predicting, and analyzing the costs of software reuse. In this paper we analyze existing models, explain their variance, and propose a tool-supported comprehensive model that encompasses ... Keywords: COCOMO, application engineering, component engineering, domain engineering, return on investment, software cost estimation, software reuse

A. Mili; S. Fowler Chmiel; R. Gottumukkala; L. Zhang

2000-06-01T23:59:59.000Z

38

Biotrans: Cost Optimization Model | Open Energy Information  

Open Energy Info (EERE)

Biotrans: Cost Optimization Model Biotrans: Cost Optimization Model Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Biotrans: Cost Optimization Model Focus Area: Ethanol Topics: Market Analysis Website: www.ecn.nl/units/ps/models-and-tools/biotrans/ Equivalent URI: cleanenergysolutions.org/content/biotrans-cost-optimization-model,http Language: English Policies: Deployment Programs DeploymentPrograms: Demonstration & Implementation BIOTRANS optimizes the biofuel supply chain allocation by finding the least-cost configuration of resources and trade to meet a specified biofuel demand in the European transportation sector. The user can constrain the optimization by inputting a number of economic and technological assumptions for a specific target year. References Retrieved from

39

Nice, Cte d'Azur, France, 27-29 September 2006 THERMAL MODELING OF HIGH POWER LED MODULES  

E-Print Network [OSTI]

Nice, Côte d'Azur, France, 27-29 September 2006 THERMAL MODELING OF HIGH POWER LED MODULES D a study of accuracy issues in thermal modeling of high power LED modules on system level. Both physical dynamics (CFD) model of a high power LED module model at a reference application condition, and to validate

Paris-Sud XI, Université de

40

Wind Turbine Design Cost and Scaling Model  

SciTech Connect (OSTI)

This model intends to provide projections of the impact on cost from changes in economic indicators such as the Gross Domestic Product and Producer Price Index.

Fingersh, L.; Hand, M.; Laxson, A.

2006-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

Cost Model for Digital Curation: Cost of Digital Migration  

E-Print Network [OSTI]

Steece, B. 2000. Software cost estimation with COCOMO II.Developing a Framework of Cost Elements for PreservingAshley, K. 1999. Digital archive costs: Facts and fallacies.

Kejser, Ulla Bøgvad; Nielsen, Anders Bo; Thirifays, Alex

2009-01-01T23:59:59.000Z

42

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

43

Cost effectiveness of recycling: A systems model  

SciTech Connect (OSTI)

Highlights: • Curbside collection of recyclables reduces overall system costs over a range of conditions. • When avoided costs for recyclables are large, even high collection costs are supported. • When avoided costs for recyclables are not great, there are reduced opportunities for savings. • For common waste compositions, maximizing curbside recyclables collection always saves money. - Abstract: Financial analytical models of waste management systems have often found that recycling costs exceed direct benefits, and in order to economically justify recycling activities, externalities such as household expenses or environmental impacts must be invoked. Certain more empirically based studies have also found that recycling is more expensive than disposal. Other work, both through models and surveys, have found differently. Here we present an empirical systems model, largely drawn from a suburban Long Island municipality. The model accounts for changes in distribution of effort as recycling tonnages displace disposal tonnages, and the seven different cases examined all show that curbside collection programs that manage up to between 31% and 37% of the waste stream should result in overall system savings. These savings accrue partially because of assumed cost differences in tip fees for recyclables and disposed wastes, and also because recycling can result in a more efficient, cost-effective collection program. These results imply that increases in recycling are justifiable due to cost-savings alone, not on more difficult to measure factors that may not impact program budgets.

Tonjes, David J., E-mail: david.tonjes@stonybrook.edu [Department of Technology and Society, College of Engineering and Applied Sciences, Stony Brook University, Stony Brook, NY 11794-3560 (United States); Waste Reduction and Management Institute, School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794-5000 (United States); Center for Bioenergy Research and Development, Advanced Energy Research and Technology Center, Stony Brook University, 1000 Innovation Rd., Stony Brook, NY 11794-6044 (United States); Mallikarjun, Sreekanth, E-mail: sreekanth.mallikarjun@stonybrook.edu [Department of Technology and Society, College of Engineering and Applied Sciences, Stony Brook University, Stony Brook, NY 11794-3560 (United States)

2013-11-15T23:59:59.000Z

44

Modeling the Costs of Carbon Capture  

Science Journals Connector (OSTI)

This paper explores the fundamental concepts required to model intertemporal carbon capture costs. A technical overview of post-combustion, pre-combustion, and alternative combustion carbon capture technologies i...

Erin Baker; Gregory Nemet; Peter Rasmussen

2012-01-01T23:59:59.000Z

45

AVTA Vehicle Component Cost Model | Department of Energy  

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

Vehicle Component Cost Model AVTA Vehicle Component Cost Model 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010...

46

CBE UFAD cost analysis tool: Life cycle cost model, issues and assumptions  

E-Print Network [OSTI]

Building Maintenance and Repair Cost Reference. ” WhitestoneJ. Wallis and H. Lin. 2008. “CBE UFAD Cost Analysis Tool:UFAD First Cost Model, Issues and Assumptions. ” Center for

Webster, Tom; Benedek, Corinne; Bauman, Fred

2008-01-01T23:59:59.000Z

47

Wind Turbine Design Cost and Scaling Model  

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

Wind Turbine Design Cost Wind Turbine Design Cost and Scaling Model L. Fingersh, M. Hand, and A. Laxson Technical Report NREL/TP-500-40566 December 2006 NREL is operated by Midwest Research Institute ● Battelle Contract No. DE-AC36-99-GO10337 Wind Turbine Design Cost and Scaling Model L. Fingersh, M. Hand, and A. Laxson Prepared under Task No. WER6.0703 Technical Report NREL/TP-500-40566 December 2006 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute * Battelle Contract No. DE-AC36-99-GO10337 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

48

Modeling of dimmable High Power LED illumination distribution using ANFIS on the isolated area  

Science Journals Connector (OSTI)

High power light emitting diodes (HP-LEDs) are more suitable for energy saving applications and have becoming replacing traditional fluorescent and incandescent bulbs for its energy efficient. Therefore, HP-LED lighting has been regarded in the next-generation ... Keywords: ANFIS, High Power LED, Illumination distribution

?smail Kiyak; Vedat Topuz; Bülent Oral

2011-09-01T23:59:59.000Z

49

Thermal model design and analysis of the high-power LED automotive headlight cooling device  

Science Journals Connector (OSTI)

Abstract A study of the thermal performance of conventional plate-fin heat sinks and novel cooling device integrated with heat conductive plates (HCPS) for the application in high-power LED headlight was presented. The thermal resistance network model was built to analyze the factors which have impacts on the junction temperature. The analyses were based on the experiment combined with computations using the CFD software FloEFD. The prediction results were validated with the experimental one. Details of the heat transfer performance, particularly the temperature distribution of the LED module and lampshell, as well as the effect of HCPS length on the system thermal resistance and the average heat transfer coefficient were obtained. Since it could make some distance between the heat sink and the lampshell, the average surface convective heat transfer coefficient had been improved and the overall external thermal resistance was reduced effectively. The effects of the simulated ambient temperature, chip package depth, inclination angles and fan rotate speeds on the junction temperature were also examined. Results indicated that the airflow was weakened as the chip package depth increased. In addition, with the presence of the enforced velocity airflow, the junction temperature decreased gradually from 116.61 °C to 78.05 °C.

Xin-Jie Zhao; Yi-Xi Cai; Jing Wang; Xiao-Hua Li; Chun Zhang

2015-01-01T23:59:59.000Z

50

Student led part Introduction  

E-Print Network [OSTI]

Overview Student led part Introduction Mathematical Biology ­ Matrix Population Projection Models;Overview Student led part Introduction The second lecture focuses on matrix (P)opulation (P)rojection (M)odels­ Stuart Townley Math Bio ­ Matrix PPMs 2/ 5 #12;Overview Student led part Introduction The second lecture

Knobloch,Jürgen

51

On EOQ Cost Models with Arbitrary Purchase and Transportation ...  

E-Print Network [OSTI]

cost functions for which this model is easy to solve and related to solving a ... For the remaining purchase-transportation cost functions, when this problem ...

Birbil

2014-03-02T23:59:59.000Z

52

Sandia National Laboratories: high-brightness LED  

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

brightness LED ECIS-Veeco: Research Driving Down the Costs of Efficient LED Lighting On February 14, 2013, in Energy, Energy Efficiency, Materials Science, Partnership, Research &...

53

Sandia National Laboratories: efficient LED lighting  

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

efficient LED lighting ECIS-Veeco: Research Driving Down the Costs of Efficient LED Lighting On February 14, 2013, in Energy, Energy Efficiency, Materials Science, Partnership,...

54

Technical Cost Modeling - Life Cycle Analysis Basis for Program...  

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

2010 -- Washington D.C. lm001das2010o.pdf More Documents & Publications Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus Technical Cost Modeling - Life...

55

Sandia National Laboratories: Analysis, Modeling, Cost of Energy...  

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

ProgramsAnalysis, Modeling, Cost of Energy, and Policy Impact: Wind Vision 2014 Analysis, Modeling, Cost of Energy, and Policy Impact: Wind Vision 2014 The "20% Wind Energy by...

56

Discrete Event Modeling of Algae Cultivation and Harvesting at Commercial Scale: Capital Costs, Operating Costs, and System Bottlenecks  

SciTech Connect (OSTI)

Discrete Event Modeling of Algae Cultivation and Harvesting at Commercial Scale: Capital Costs, Operating Costs, and System Bottlenecks

Lacey, Ph.D, P.E., Ronald E. [Texas A& M University

2012-07-16T23:59:59.000Z

57

Hierarchical Reliability Model for Life Prediction of Actively Cooled LED-Based Luminaire  

Science Journals Connector (OSTI)

The interest in light-emitting diodes (LEDs) for illumination applications has been increasing continuously over the last decade due to two key attributes of long lifetime and low energy consumption compared to t...

Bong-Min Song; Bongtae Han; Avram Bar-Cohen…

2011-01-01T23:59:59.000Z

58

Financial and Cost Assessment Model (FICAM) | Open Energy Information  

Open Energy Info (EERE)

Financial and Cost Assessment Model (FICAM) Financial and Cost Assessment Model (FICAM) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Financial and Cost Assessment Model (FICAM) Agency/Company /Organization: UNEP-Risoe Centre Sector: Climate Focus Area: Greenhouse Gas Topics: Finance, Baseline projection, GHG inventory Resource Type: Software/modeling tools User Interface: Spreadsheet Website: tech-action.org/models.htm Cost: Free Financial and Cost Assessment Model (FICAM) Screenshot References: FICAM[1] "The Financial and Cost Assessment Model (FICAM) evaluates the contribution of technologies and practices towards mitigation of greenhouse gases, and carries a comprehensive financial analysis." References ↑ "FICAM" Retrieved from "http://en.openei.org/w/index.php?title=Financial_and_Cost_Assessment_Model_(FICAM)&oldid=383091"

59

Comparative Analysis of the Cost Models Used for Estimating Renovation Costs of Universities in Texas  

E-Print Network [OSTI]

the cost of renovation, ease of use and speed of the model are some of the other factors that practitioners look for in a cost model (Yokum and Armstrong. 1995). This research aims to identify the merits and demerits of the cost models based on not only... Researchers believe that accuracy is the main criterion for selecting the best cost model; however, a survey done by Yokum and Armstrong in 1995 shows that ease of interpretation, ease of use, ease in getting data, credibility, and speed top the list...

Faquih, Yaquta Fakhruddin

2010-10-12T23:59:59.000Z

60

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

Note: This page contains sample records for the topic "led cost model" 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

An Analysis of TRL-Based Cost and Schedule Models  

E-Print Network [OSTI]

The GAO's, NASA's, and the DoD's adoption of the technology readiness level (TRL) scale to improve technology management has led to the emergence of many TRL-based models that are used to monitor technology maturation, ...

Kenley, C. Robert

2012-04-30T23:59:59.000Z

62

Mathematical Modeling for CostMathematical Modeling for Cost Optimization of PV RecyclingOptimization of PV Recycling  

E-Print Network [OSTI]

Mathematical Modeling for CostMathematical Modeling for Cost Optimization of PV RecyclingOptimization of PV Recycling InfrastructureInfrastructure JunJun--Ki ChoiKi Choi & Vasilis Fthenakis& Vasilis Recycling ­Cost Optimization 1. Where is the optimized location? · Centralized/decentralized collection

63

Cost Modeling and Design Techniques for Integrated Package Distribution Systems  

E-Print Network [OSTI]

Cost Modeling and Design Techniques for Integrated Package Distribution Systems Karen R. Smilowitz idealizations of network geometries, operating costs, demand and customer distributions, and routing patterns that approximate the total cost of operation. The design problem is then reduced to a series of optimization

Daganzo, Carlos F.

64

Reliability Models for Facility Location: The Expected Failure Cost ...  

E-Print Network [OSTI]

Reliability Models for Facility Location: The Expected Failure Cost Case. Lawrence V. Snyder (larry.snyder ***at*** lehigh.edu) Mark S. Daskin (m-daskin *

Lawrence V. Snyder

65

Webinar: Wind-to-Hydrogen Cost Modeling and Project Findings  

Broader source: Energy.gov [DOE]

Video recording and text version of the webinar titled, Wind-to-Hydrogen Cost Modeling and Project Findings, originally presented on January 17, 2013.

66

Technical Cost Modeling - Life Cycle Analysis Basis for Program...  

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

Cost Modeling - Life Cycle Analysis Basis for Program Focus 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer...

67

Energy and cost optimization in industrial models  

Science Journals Connector (OSTI)

A program for Linear Energy Optimization (LEO...) which was used to investigate thermodynamical and technical options of reducing the energy-consumption of industrialized countries is extended to handle the cost ...

H. -M. Groscurth; R. Kümmel

1990-01-01T23:59:59.000Z

68

LED Watch: The Outlook for LEDs  

Broader source: Energy.gov [DOE]

December 2014 LED Watch: The Outlook for LEDs James Brodrick, U.S. Department of Energy LD+A Magazine

69

Developmental Cost for Models of Intelligence  

E-Print Network [OSTI]

We can evaluate models of natural intelligence, as well as theirindividual components, by using a model of hardware and developmentcosts, ignoring almost all the details of biology. The basic argumentis that neither the ...

Beal, Jacob

2007-05-15T23:59:59.000Z

70

Les Cahiers du LED Conditional Markov regime switching model applied to  

E-Print Network [OSTI]

and Brent oil price) to show that such modelling clearly identifies both mean reverting and volatility time series data such as the business cycle, economic growth or unemployment is not new. In his seminal are able to reproduce the different phases of the business cycle and capture the cyclical behaviour of U

Paris-Sud XI, Université de

71

An Aerospace Component Cost Modelling Study for Value Driven Design  

E-Print Network [OSTI]

of the research project is to understand, develop and implement a strategy to allow future generations of gas to develop cost modelling tools and techniques that can be adopted during the engine design phases turbines to be designed to meet not only performance and cost targets but to also take into account other

72

Reclamation cost inputs for the resource allocation and mine costing model. Final working paper  

SciTech Connect (OSTI)

The purpose of this study is to improve estimates of surface mining reclamation cost components used as inputs to the Energy Information Administration's Resource Allocation and Mine Costing (RAMC) model. Costs ignored by the RAMC equations and input separately into the model on a regional basis were the focus of this study. Estimates of costs associated with the following reclamation activities were developed: valley fill construction, topsoil handling, runoff and diversion ditch construction and backfilling, sediment pond construction and backfilling, final pit backfilling and highwall reduction, revegetation, and permitting. For each activity, separate estimates were developed by cost component (initial capital, deferred capital, and annual operating), region (central Appalachia, northern Appalachia, the Midwest, and the West), and overburden ratio. For the first five activities, a ''composite mine'' approach was used. Basic engineering data on the quantity of material moved, and the distance over which it is moved, were obtained on a task-by-task basis for regional samples of actual mining operations. Mine permit applications filed with state and federal regulatory agencies were used as the source of these data. On the basis of the collected data, average material quantities and transportation distances were calculated for each region and reclamation task; these averages were used as the composite mine specifications assumed to be representative of the typical earthmoving requirements associated with each task in each region. Revegetation costs were estimated on the basis of published or publicly available data representing either the actual or estimated costs to state governments of revegetating abandoned mine sites. Permitting costs were developed on the basis of estimates of typical regional permitting costs solicited from engineering contractors providing permitting services to the coal industry. 11 tabs.

Not Available

1984-11-30T23:59:59.000Z

73

Walking model with no energy cost  

Science Journals Connector (OSTI)

We have numerically found periodic collisionless motions of a walking model consisting of linked rigid objects. Unlike previous designs, this model can walk on level ground at noninfinitesimal speed with zero energy input. The model avoids collisional losses by using an internal mode of oscillation: swaying of the upper body coupled to the legs by springs. Appropriate synchronized internal oscillations set the foot-strike collision to zero velocity. The concept might be of use for energy-efficient robots and may also help to explain aspects of human and animal locomotion efficiency.

Mario Gomes and Andy Ruina

2011-03-08T23:59:59.000Z

74

A Statistical Method Analyzing LED Lumen Depreciation and Projecting LED Life  

SciTech Connect (OSTI)

There is a strong need for a method to represent the potential life of LED products as a critical part of design decisions including cost-effectiveness analysis. The IES LM-80 test method is in place to collect lumen depreciation data but it does not provide for estimation of future long term depreciation. Separate estimation methods are being considered (TM-21) and this paper describes the analysis of a series of LED degradation models and subsequent development of an estimation method. The work involves analysis of a set of engineering models to determine their applicability and define a structure for their use in LED lumen output life based on a lumen output level such as the L70 metric. The analysis has provided valuable information on methods effectively estimating LED life time, and impacts of measurement uncertainties, test duration, interval and other test conditions on selecting degradation models and LED life time projection. A set of guidelines are recommended to estimate LED life from data obtained using the current LM-80 test method.

Qiao, Hong (Amy) [Amy; Pulsipher, Trenton C.; Hathaway, John E.; Richman, Eric E.; Radkov, Emil

2010-05-30T23:59:59.000Z

75

A Phenomenological Cost Model for High Energy Particle Accelerators  

E-Print Network [OSTI]

Accelerator-based high-energy physics have been in the forefront of scientific discoveries for more than half a century. The accelerator technology of the colliders has progressed immensely, while the beam energy, luminosity, facility size, and cost have grown by several orders of magnitude. The method of colliding beams has not fully exhausted its potential but has slowed down considerably in its progress. In this paper we derive a simple scaling model for the cost of large accelerators and colliding beam facilities based on costs of 17 big facilities which have been either built or carefully estimated. Although this approach cannot replace an actual cost estimate based on an engineering design, this parameterization is to indicate a somewhat realistic cost range for consideration of what future frontier accelerator facilities might be fiscally realizable.

Vladimir Shiltsev

2014-04-15T23:59:59.000Z

76

Low Cost Carbon Fibre: Applications, Performance and Cost Models - Chapter 17  

SciTech Connect (OSTI)

Weight saving in automotive applications has a major bearing on fuel economy. It is generally accepted that, typically, a 10% weight reduction in an automobile will lead to a 6-8% improvement in fuel economy. In this respect, carbon fibre composites are extremely attractive in their ability to provide superlative mechanical performance per unit weight. That is why they are specified for high-end uses such as Formula 1 racing cars and the latest aircraft (e.g. Boeing 787, Airbus A350 and A380), where they comprise over 50% by weight of the structure However, carbon fibres are expensive and this renders their composites similarly expensive. Research has been carried out at Oak Ridge National Laboratories (ORNL), Tennessee, USA for over a decade with the aim of reducing the cost of carbon fibre such that it becomes a cost-effective option for the automotive industry. Aspects of this research relating to the development of low cost carbon fibre have been reported in Chapter 3 of this publication. In this chapter, the practical industrial applications of low-cost carbon fibre are presented, together with considerations of the performance and cost models which underpin the work.

Warren, Charles David [ORNL; Wheatley, Dr. Alan [University of Sunderland; Das, Sujit [ORNL

2014-01-01T23:59:59.000Z

77

Regulation and Measuring Cost-Efficiency with Panel Data Models: Application to Electricity Distribution Utilities  

Science Journals Connector (OSTI)

This paper examines the performance of panel data models in measuring cost-efficiency of electricity distribution utilities. Different cost frontier models are applied to a sample...

Mehdi Farsi; Massimo Filippini

2004-08-01T23:59:59.000Z

78

New Zealand Interactive Electricity Generation Cost Model 2010 | Open  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » New Zealand Interactive Electricity Generation Cost Model 2010 Jump to: navigation, search Tool Summary LAUNCH TOOL Name: New Zealand Interactive Electricity Generation Cost Model 2010 Agency/Company /Organization: New Zealand Energy Authority Sector: Energy Topics: Finance, Implementation, Co-benefits assessment Resource Type: Software/modeling tools User Interface: Spreadsheet Website: www.med.govt.nz/templates/MultipageDocumentTOC____45553.aspx Country: New Zealand Cost: Free Australia and New Zealand Coordinates: -40.900557°, 174.885971°

79

Cost effectiveness of the 1993 Model Energy Code in Colorado  

SciTech Connect (OSTI)

This report documents an analysis of the cost effectiveness of the Council of American Building Officials` 1993 Model Energy Code (MEC) building thermal-envelope requirements for single-family homes in Colorado. The goal of this analysis was to compare the cost effectiveness of the 1993 MEC to current construction practice in Colorado based on an objective methodology that determined the total life-cycle cost associated with complying with the 1993 MEC. This analysis was performed for the range of Colorado climates. The costs and benefits of complying with the 1993 NIEC were estimated from the consumer`s perspective. The time when the homeowner realizes net cash savings (net positive cash flow) for homes built in accordance with the 1993 MEC was estimated to vary from 0.9 year in Steamboat Springs to 2.4 years in Denver. Compliance with the 1993 MEC was estimated to increase first costs by $1190 to $2274, resulting in an incremental down payment increase of $119 to $227 (at 10% down). The net present value of all costs and benefits to the home buyer, accounting for the mortgage and taxes, varied from a savings of $1772 in Springfield to a savings of $6614 in Steamboat Springs. The ratio of benefits to costs ranged from 2.3 in Denver to 3.8 in Steamboat Springs.

Lucas, R.G.

1995-06-01T23:59:59.000Z

80

Cost and Performance Assumptions for Modeling Electricity Generation Technologies  

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

Cost and Performance Cost and Performance Assumptions for Modeling Electricity Generation Technologies Rick Tidball, Joel Bluestein, Nick Rodriguez, and Stu Knoke ICF International Fairfax, Virginia Subcontract Report NREL/SR-6A20-48595 November 2010 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Cost and Performance Assumptions for Modeling Electricity Generation Technologies Rick Tidball, Joel Bluestein, Nick Rodriguez, and Stu Knoke ICF International Fairfax, Virginia NREL Technical Monitor: Jordan Macknick

Note: This page contains sample records for the topic "led cost model" 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

Cost Modeling and Design Techniques for Integrated Package Distribution Systems  

E-Print Network [OSTI]

Cost Modeling and Design Techniques for Integrated Package Distribution Systems Karen R. Smilowitz and Carlos F. Daganzo December 23, 2005 Abstract Complex package distribution systems are designed using-scale integrated distribution networks. While the network design problem is quite complex, we demonstrate

Smilowitz, Karen

82

Energy Department Announces New University-Led Projects to Create...  

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

Projects to Create More Efficient, Lower Cost Concentrating Solar Power Systems Energy Department Announces New University-Led Projects to Create More Efficient, Lower Cost...

83

Metacapacitors for LED Lighting: Metacapacitors  

SciTech Connect (OSTI)

ADEPT Project: The CUNY Energy Institute is developing less expensive, more efficient, smaller, and longer-lasting power converters for energy-efficient LED lights. LEDs produce light more efficiently than incandescent lights and last significantly longer than compact fluorescent bulbs, but they require more sophisticated power converter technology, which increases their cost. LEDs need more sophisticated converters because they require a different type of power (low voltage direct current, or DC) than what's generally supplied by power outlets. The CUNY Energy Institute is developing sophisticated power converters for LEDs that contain capacitors made from new, nanoscale materials. Capacitors are electrical components that are used to store energy. CUNY's unique capacitors are configured with advanced power circuits to more efficiently control and convert power to the LED lighting source. They also eliminate the need for large magnetic components, instead relying on networks of capacitors that can be easily printed on plastic substrate. CUNY's prototype LED power converter already meets DOE's 2020 projections for the energy efficiency of LED power converters.

None

2010-09-02T23:59:59.000Z

84

Value of Demand Response: Quantities from Production Cost Modeling (Presentation)  

SciTech Connect (OSTI)

Demand response (DR) resources present a potentially important source of grid flexibility particularly on future systems with high penetrations of variable wind and solar power generation. However, managed loads in grid models are limited by data availability and modeling complexity. This presentation focuses on the value of co-optimized DR resources to provide energy and ancillary services in a production cost model. There are significant variations in the availabilities of different types of DR resources, which affect both the operational savings as well as the revenue for each DR resource. The results presented include the system-wide avoided fuel and generator start-up costs as well as the composite revenue for each DR resource by energy and operating reserves. In addition, the revenue is characterized by the capacity, energy, and units of DR enabled.

Hummon, M.

2014-04-01T23:59:59.000Z

85

LEDs_2LEDs_2 radiative recombination efficiency  

E-Print Network [OSTI]

· heterojunction band diagrams · current efficiency · extraction efficiency · wall-plug efficiency #12;2 Non. 8.1] #12;6 Materials for highMaterials for high--brightnessbrightness LEDsLEDsSecs. 8.1, 8.2.1 Why system Gas handling system Computer Control Reactor #12;8 Examples ofExamples of colourcolour

Pulfrey, David L.

86

New and Underutilized Technology: Airfield LED Lighting | Department of  

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

Technology: Airfield LED Lighting Technology: Airfield LED Lighting New and Underutilized Technology: Airfield LED Lighting October 7, 2013 - 8:57am Addthis The following information outlines key deployment considerations for airfield LED lighting within the Federal sector. Benefits Airfield LED lighting is a good application for colored LED lights since the LED is monochromatic. Reduced maintenance costs dramatically improve economics over existing incandescent. Application Airfield LED lighting is applicable at airports as wells military and domestic air stations and bases. Key Factors for Deployment Federal agencies must determine Federal Aviation Administration (FAA) approval requirements before deployment. Ranking Criteria Federal energy savings, cost-effectiveness, and probability of success are

87

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.

88

Cree LED Lighting Solutions Formerly LED Lighting Fixtures LLF...  

Open Energy Info (EERE)

LED Lighting Solutions Formerly LED Lighting Fixtures LLF Jump to: navigation, search Name: Cree LED Lighting Solutions (Formerly LED Lighting Fixtures (LLF)) Place: Morrisville,...

89

Modeling the Cost of Climate Policy: Distinguishing Between Alternative Cost Deftitions and Long-Run Cost Dynamics  

E-Print Network [OSTI]

debate the cost of greenhouse gas (GHG) reduction, andpolicy-makers do not know whom to believe dynamics of GHG emission reduction. We explore these generic methodological issues with a case study of GHG reduction costs in Canada. INTRODUCTION In deciding how and by how much to reduce greenhouse gas (GHG

90

Toward Cost-Sensitive Modeling for Intrusion Detection Computer Science Department  

E-Print Network [OSTI]

Toward Cost-Sensitive Modeling for Intrusion Detection Wenke Lee Computer Science Department North,ezk,weaselg@cs.columbia.edu Abstract Intrusion detection systems need to maximize security while minimizing costs. In this paper, we study the problem of building cost-sensitive intrusion detection models. We examine the major cost

91

Photoacoustic Gas Detection with LED QEPAS  

Science Journals Connector (OSTI)

A novel approach of QEPAS (quartz-enhanced photoacoustic spectroscopy) applying low-cost LEDs as light sources in combination with the so-called off-beam technology is presented for...

Böttger, Stefan; Angelmahr, Martin; Schade, Wolfgang

92

Modeling Stakeholder/Value Dependency through Mean Failure Cost  

SciTech Connect (OSTI)

In an earlier series of works, Boehm et al. discuss the nature of information system dependability and highlight the variability of system dependability according to stakeholders. In a recent paper, the dependency patterns of this model are analyzed. In our recent works, we presented a stakeholder dependent quantitative security model, where we quantify security for a given stakeholder by the mean of the loss incurred by the stakeholder as a result of security threats. We show how this mean can be derived from the security threat configuration (represented as a vector of probabilities that reflect the likelihood of occurrence of the various security threats). We refer to our security metric as MFC, for Mean Failure Cost. In this paper, we analyze Boehm's model from the standpoint of the proposed metric, and show whether, to what extent, and how our metric addresses the issues raised by Boehm's Stakeholder/Value definition of system dependability.

Aissa, Anis Ben [University of Tunis, Belvedere, Tunisia] [University of Tunis, Belvedere, Tunisia; Abercrombie, Robert K [ORNL] [ORNL; Sheldon, Frederick T [ORNL] [ORNL; Mili, Ali [New Jersey Insitute of Technology] [New Jersey Insitute of Technology

2010-01-01T23:59:59.000Z

93

Hour-by-Hour Cost Modeling of Optimized Central Wind-Based Water...  

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

Hour-by-Hour Cost Modeling of Optimized Central Wind-Based Water Electrolysis Production Hour-by-Hour Cost Modeling of Optimized Central Wind-Based Water Electrolysis Production...

94

Fuel Cell Technologies Office: Wind-to-Hydrogen Cost Modeling and Project  

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

Wind-to-Hydrogen Cost Wind-to-Hydrogen Cost Modeling and Project Findings (Text Version) to someone by E-mail Share Fuel Cell Technologies Office: Wind-to-Hydrogen Cost Modeling and Project Findings (Text Version) on Facebook Tweet about Fuel Cell Technologies Office: Wind-to-Hydrogen Cost Modeling and Project Findings (Text Version) on Twitter Bookmark Fuel Cell Technologies Office: Wind-to-Hydrogen Cost Modeling and Project Findings (Text Version) on Google Bookmark Fuel Cell Technologies Office: Wind-to-Hydrogen Cost Modeling and Project Findings (Text Version) on Delicious Rank Fuel Cell Technologies Office: Wind-to-Hydrogen Cost Modeling and Project Findings (Text Version) on Digg Find More places to share Fuel Cell Technologies Office: Wind-to-Hydrogen Cost Modeling and Project Findings (Text Version) on

95

Recessed LED Downlights  

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

Recessed LED Downlights Recessed downlights are commonly used for ambient and directional lighting in both residential and commercial build- ings. One of the earliest applications...

96

Integrated LED Headlamp Module  

Science Journals Connector (OSTI)

LED headlamp module integrates all necessary optics, electronics, and heat management into one compact unit that fits into standard mechanical headlamp frame. It provides high beam,...

Popelek, Jan

97

LED Linear Lamps and Troffer Lighting  

Broader source: Energy.gov [DOE]

The CALiPER program performed a series of investigations on linear LED lamps. Each report in the series covers the performance of up to 31 linear LED lamps, which were purchased in late 2012 or 2013. The first report focuses on bare lamp performance of LED T8 replacement lamps and subsequent reports examine performance in various troffers, as well as cost-effectiveness. There is also a concise guidance document that describes the findings of the Series 21 studies and provides practical advice to manufacturers, specifiers, and consumers (Report 21.4: Summary of Linear (T8) LED Lamp Testing , 5 pages, June 2014).

98

Modeling Photovoltaic and Concentrating Solar Power Trough Performance, Cost, and Financing with Solar Advisor Model  

SciTech Connect (OSTI)

A comprehensive solar technology systems analysis model, the Solar Advisor Model (SAM), has been developed to support the federal R&D community and the solar industry by staff at the National Renewable Energy Laboratory (NREL) and Sandia National Laboratory. This model is able to model the finances, incentives, and performance of flat-plate photovoltaic (PV), concentrating PV, and concentrating solar power (specifically, parabolic troughs). The primary function of the model is to allow users to investigate the impact of variations in performance, cost, and financial parameters to better understand their impact on key figures of merit. Figures of merit related to the cost and performance of these systems include, but aren't limited to, system output, system efficiencies, levelized cost of energy, return on investment, and system capital and O&M costs. SAM allows users to do complex system modeling with an intuitive graphical user interface (GUI). In fact, all tables and graphics for this paper are taken directly from the model GUI. This model has the capability to compare different solar technologies within the same interface, making use of similar cost and finance assumptions. Additionally, the ability to do parametric and sensitivity analysis is central to this model. There are several models within SAM to model the performance of photovoltaic modules and inverters. This paper presents an overview of each PV and inverter model, introduces a new generic model, and briefly discusses the concentrating solar power (CSP) parabolic trough model. A comparison of results using the different PV and inverter models is also presented.

Blair, N.; Mehos, M.; Christensen, C.; Cameron, C.

2008-01-01T23:59:59.000Z

99

LED Lighting Facts  

Broader source: Energy.gov [DOE]

DOE's LED Lighting Facts® program showcases LED products for general illumination from manufacturers who commit to testing products and reporting performance results according to industry standards. For lighting buyers, designers, and energy efficiency programs, the program provides information essential to evaluating SSL products.

100

Analytic framework for TRL-based cost and schedule models  

E-Print Network [OSTI]

Many government agencies have adopted the Technology Readiness Level (TRL) scale to help improve technology development management under ever increasing cost, schedule, and complexity constraints. Many TRL-based cost and ...

El-Khoury, Bernard

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

AVCEM: Advanced-Vehicle Cost and Energy Use Model  

E-Print Network [OSTI]

compressor); total cost of materials for the water pump, the hydrogencost); the initial temperature and pressure of hydrogen; the compressorcompressor cost per unit of output ($/hp/million standard ft3 [SCF] of hydrogen/

Delucchi, Mark

2005-01-01T23:59:59.000Z

102

Towards a Cost Model for Network Traffic Murtaza Motiwala , Amogh Dhamdhere , Nick Feamster , Anukool Lakhina  

E-Print Network [OSTI]

Towards a Cost Model for Network Traffic Murtaza Motiwala , Amogh Dhamdhere , Nick Feamster@gatech.edu, anukool.lakhina@guavus.com ABSTRACT We develop a holistic cost model that operators can use to help evaluate the costs of various routing and peering decisions. Using real traffic data from a large carrier

California at San Diego, University of

103

LED Basics | Department of Energy  

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

Basics LED Basics Unlike incandescent and fluorescent lamps, LEDs are not inherently white light sources. Instead, LEDs emit nearly monochromatic light, making them highly...

104

An Extended Transition Energy Cost Model for Buses in Deep Submicron Technologies  

Science Journals Connector (OSTI)

In this paper we present and carefully analyze a transition energy cost model aimed for efficient power estimation of ... submicron buses. We derive an accurate transition energy cost matrix, scalable to buses of...

Peter Caputa; Henrik Fredriksson…

2004-01-01T23:59:59.000Z

105

Transparent Cost Database | Open Energy Information  

Open Energy Info (EERE)

Transparent Cost Database Transparent Cost Database Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Transparent Cost Database Agency/Company /Organization: Department of Energy Partner: National Renewable Energy Laboratory Sector: Energy Focus Area: Renewable Energy, Solar, Transportation Topics: Baseline projection, Low emission development planning, -LEDS, Resource assessment, Technology characterizations Resource Type: Dataset, Lessons learned/best practices, Software/modeling tools User Interface: Website Web Application Link: en.openei.org/apps/TCDB/ Cost: Free OpenEI Keyword(s): Featured Equivalent URI: cleanenergysolutions.org/content/united-states-transparent-cost-databa Language: English The Transparent Cost Database collects program cost and performance

106

Sandia National Laboratories: LED  

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

electroluminescence was first reported by H.J. Round in 1907, and the first light-emitting diode (LED) was reported by O.V. Losev in 1927. Not until the birth of semiconductor...

107

LEd:JCD  

Office of Legacy Management (LM)

LEd:JCD TO- 54 k-sour R3scsrck Fouadatlon 0f..&+0istlstituta of TecGJlow Tecmolocy Csilter 10 Zest 35th Stmet ', cxk3go lo, I3.Umie Atteqtion: MC. R. c. Barrall Gentlemen:...

108

Technical Cost Modeling - Life Cycle Analysis Basis for Program...  

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

supported by Materials Technology Program to meet national objectives for improved fuel economy * Identify specific technology improvements that affect major cost drivers *...

109

LED Lightbulbs | Department of Energy  

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

ledshires.jpg Description LED lightbulbs More Documents & Publications LED Lightbulbs CFL Lightbulbs Lighting Choices - White Background...

110

A COST ONTOLOGY FOR ENTERPRISE MODELLING K. D.(Donald) Tham, Mark S. Fox, Michael Gruninger  

E-Print Network [OSTI]

A COST ONTOLOGY FOR ENTERPRISE MODELLING K. D.(Donald) Tham, Mark S. Fox, Michael GruningerS 1A4 Abstract There is an urgent need to formalize Activity-Based Costing (ABC) for purposes success, viz., strategic management accounting. To make this possible, the authors present a core cost

Fox, Mark S.

111

ARBITRAGE-FREE MODELS IN MARKETS WITH TRANSACTION COSTS HASANJAN SAYIT AND FREDERI VIENS  

E-Print Network [OSTI]

ARBITRAGE-FREE MODELS IN MARKETS WITH TRANSACTION COSTS HASANJAN SAYIT AND FREDERI VIENS Abstract transaction costs. We present a condition which is sufficient for the market to be arbitrage but are consistent with absense of arbitrage. Keywords Financial markets, Arbitrage-free, Transaction costs, Sticky

Viens, Frederi G.

112

Computer model study: An analysis of the Nephew/Spore model for determining costs of cost of coal mining in Appalachia. Final report  

SciTech Connect (OSTI)

The study determined whether the model developed to study Costs of Coal Surface Mining and Reclamation in Appalachia was capable of being responsive to the needs of the Office of Surface Mining for projecting the extraction costs of coal in support of the Small Operator Assistance Program. The study analysis validated the model and adapted the model to specific small operator needs in terms of user flexibility. Based on the analysis and model enhancements approach used by the study, three primary recommendations are made: Validate the model with live cost and performance data to determine potential viability for small operator assistance; Enhance the model to provide greater flexibility and ease of user support; and field test the model through regional offices of the Small Operator Assistance Program.

Nephew, E.A.; Spore, R.L.

1980-06-06T23:59:59.000Z

113

Hour-by-Hour Cost Modeling of Optimized Central Wind-Based Water Electrolysis Production  

Broader source: Energy.gov [DOE]

Presentation slides from the US DOE Fuel Cell Technologies Office webinar, Wind-to-Hydrogen Cost Modeling and Project Findings, on held January 17, 2013.

114

AVCEM: Advanced-Vehicle Cost and Energy Use Model  

E-Print Network [OSTI]

liquefied natural-gas (LNG) ICEVs; • liquefied-petroleum-tanks, cryogenic tanks for LH2 and LNG, and hydrogen-hydrideThe cost of a CNG and an LNG station is calculated from a

Delucchi, Mark

2005-01-01T23:59:59.000Z

115

AVCEM: Advanced-Vehicle Cost and Energy Use Model  

E-Print Network [OSTI]

stack); fuel-cell salvage value (fraction of initial coststack); total cost of vehicle electronics needed specifically for the fuel-cellcosts, expressed as a wage multiplier); specific weight of the fuel-cell stack (

Delucchi, Mark

2005-01-01T23:59:59.000Z

116

Technical Cost Modeling - Life Cycle Analysis Basis for Program...  

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

1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation lm001das2011o.pdf More Documents & Publications Technical Cost...

117

Abstract 4138: Fluorescence laparoscopy with an LED light source enables fluorescence-guided resection of pancreatic cancer, labeled with fluorophore-conjugated antibodies, in mouse models.  

Science Journals Connector (OSTI)

...4138: Fluorescence laparoscopy with an LED light source enables fluorescence-guided...495-nm emission filter and a Stryker L9000 LED light source 24 hours after tail vein injection...Bouvet. Fluorescence laparoscopy with an LED light source enables fluorescence-guided...

Cristina A. Metildi; Sharmeela Kaushal; George A. Luiken; Mark A. Talamini; Robert M. Hoffman; Michael Bouvet

2013-04-15T23:59:59.000Z

118

LED MR16 Lamps  

Broader source: Energy.gov [DOE]

The following CALiPER report provides detailed analysis of LED MR16 lamp performance, covering basic performance characteristics as well as subjective evaluation of beam, shadow, and color quality. Pending reports will offer analysis on performance attributes that are not captured by LM-79 testing. These reports are intended to educate the industry on market trends, potential issues, and important areas for improvement.

119

StatREC: a graphical user interface tool for visual hypothesis testing of cost prediction models  

Science Journals Connector (OSTI)

Background: During the previous decades there has been noted a significantly increased research interest on the construction of prediction models for accurate estimation of software cost. Despite the development of sophisticated methodologies, ... Keywords: REC curves, graphical comparison, graphical user interface, permutation test, prediction models, software cost estimation

Nikolaos Mittas; Ioannis Mamalikidis; Lefteris Angelis

2012-09-01T23:59:59.000Z

120

LED PAR38 Lamps  

Broader source: Energy.gov [DOE]

The following CALiPER reports provide detailed analysis of LED PAR38 lamp performance, covering basic performance characteristics as well as subjective evaluation of beam, shadow, and color quality. Pending reports will offer analysis on flicker, dimming and power quality characteristics; stress testing; and lumen and chromaticity maintenance. These reports are intended to educate the industry on market trends, potential issues, and important areas for improvement.

Note: This page contains sample records for the topic "led cost model" 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

LED Price Tracking Form  

Broader source: Energy.gov [DOE]

DOE intends to update the SSL Pricing and Efficacy Trend Analysis for Utility Program Planning report on an annual basis, but doing so requires that we have sufficient product and purchase data including acquisition date, purchase price, product category, and rated initial lumens. Those interested in helping collect this data are asked to use the LED Price Tracking FormMicrosoft Excel and follow the instructions for submitting data.

122

Using LEDs | Department of Energy  

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

maintenance, and long life-LEDs are well suited to a variety of lighting applications. LED products are most competitive in applications where these performance characteristics...

123

LED Lighting | Department of Energy  

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

LED Lighting LED Lighting LED Lighting July 29, 2012 - 4:43pm Addthis LED Lighting What are the key facts? Quality LED products can last 25 times longer than an incandescent bulb and use 75% less energy. LEDs are directional, focusing light in ways that are useful in homes and commercial settings. The light-emitting diode (LED) is one of today's most energy-efficient and rapidly-developing lighting technologies. Quality LED light bulbs last longer, are more durable, and offer comparable or better light quality than other types of lighting. Check out the top 8 things about LEDs to learn more. Energy Savings LED is a highly energy efficient lighting technology, and has the potential to fundamentally change the future of lighting in the United States. Residential LEDs -- especially ENERGY STAR rated products -- use at least

124

New and Underutilized Technology: Exterior LED/Solid State Lighting |  

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

Exterior LED/Solid State Lighting Exterior LED/Solid State Lighting New and Underutilized Technology: Exterior LED/Solid State Lighting October 4, 2013 - 4:55pm Addthis The following information outlines key deployment considerations for exterior LED/solid state lighting within the Federal sector. Benefits LED lighting economics can work in high electric cost areas with high hours of use. Pricing continually decreases for LED lighting. This technology provides quality, white, even lighting with good color rendition. Greater cost savings can be achieved when combined with bi-level motion sensors to reduce light levels in parking areas, garages, and walkways. Application Exterior LED/solid state lighting is applicable in areas where security and visual performance are critical, including street lighting, parking lots,

125

Measurment of a Cost Function for US Airlines: Restricted and Unrestricted Translog Models with Energy Cost Perturbations.  

E-Print Network [OSTI]

??This thesis continues and expands several themes from previous studies of commercial airline cost functions. A well specified industrial cost function reveals characteristics about the… (more)

Meland, William J.

2011-01-01T23:59:59.000Z

126

14 - Cost modelling of coal power plant start-up in cyclical operation  

Science Journals Connector (OSTI)

Abstract: It has long been recognized that large coal plants that are exposed to cyclic operation incur more damage and have higher maintenance costs than units which operate in a base load regimen. This chapter reviews historical studies that have attempted to model the costs of cycling for these units from both bottom-up and top-down perspectives. It describes recent research at the component, unit and system level which attempts to forecast maintenance costs in the high-cycling scenarios likely to result from changes in the relative cost of fuel and the expansion of renewable energy sources.

P. Keatley

2014-01-01T23:59:59.000Z

127

Ultratech Develops an Improved Lithography Tool for LED Wafer Manufacturing  

Broader source: Energy.gov [DOE]

Ultratech modified an existing lithography tool used for semiconductor manufacturing to better meet the cost and performance targets of the high-brightness LED manufacturing industry. The goal was to make the equipment compatible with the wide range of substrate diameters and thicknesses prevalent in the industry while reducing the capital cost and the overall cost of ownership (COO).

128

A Multilayer Cost Model for Metro/Core Networks  

Science Journals Connector (OSTI)

A capital expenditure model is a key requirement to evaluate multilayer (ML) metro and core network architectures. Based on the Internet protocol/multiprotocol label switching...

Rambach, Franz; Konrad, Beate; Dembeck, Lars; Gebhard, Ulrich; Gunkel, Matthias; Quagliotti, Marco; Serra, Laura; López, Víctor

2013-01-01T23:59:59.000Z

129

An integrated cost model for production scheduling and perfect maintenance  

Science Journals Connector (OSTI)

Production scheduling deals with scheduling production jobs on a machine (single or multiple) in order to optimise a specific objective such as total weighted completion times or total weighted tardiness. The assumption that machines are always available for processing jobs is generally used in the production scheduling literature. In reality, machines often are unavailable due to preventive maintenance activities or machine failure. Production scheduling and preventive maintenance planning are interrelated, but are most often treated separately. This interdependency seems to be overlooked in the literature. This work integrates, simultaneously, the decisions of preventive maintenance and job order sequencing for a single machine. The objective is to find the job order sequence and maintenance decisions that would minimise the expected cost.

Laith A. Hadidi; Umar M. Al-Turki; M. Abdur Rahim

2011-01-01T23:59:59.000Z

130

Dynamic Cost-Loss Ratio Decision-making Model with an Autocorrelated Climate Variable  

Science Journals Connector (OSTI)

A dynamic decision-making problem is considered involving the use of information about the autocorrelation of a climate variable. Specifically, an infinite horizon, discounted version of the dynamic cost-loss ratio model is treated, in which only ...

Richard W. Katz

1993-01-01T23:59:59.000Z

131

Stochastic Modeling of Future Highway Maintenance Costs for Flexible Type Highway Pavement Construction Projects  

E-Print Network [OSTI]

that affect pavement performances; 2) develop a stochastic model that predicts future maintenance costs of flexible-type pavement in Texas. The study data were gathered through the Pavement Management Information System (PMIS) containing more than 190...

Kim, Yoo Hyun

2012-07-16T23:59:59.000Z

132

A chronological probabilistic production cost model to evaluate the reliability contribution of limited energy plants  

E-Print Network [OSTI]

The growth of renewables in power systems has reinvigorated research and regulatory interest in reliability analysis algorithms such as the Baleriaux/Booth convolution-based probabilistic production cost (PPC) model. ...

Leung, Tommy (Tommy Chun Ting)

2012-01-01T23:59:59.000Z

133

Modeling of Performance, Cost, and Financing of Concentrating Solar, Photovoltaic, and Solar Heat Systems (Poster)  

SciTech Connect (OSTI)

This poster, submitted for the CU Energy Initiative/NREL Symposium on October 3, 2006 in Boulder, Colorado, discusses the modeling, performance, cost, and financing of concentrating solar, photovoltaic, and solar heat systems.

Blair, N.; Mehos, M.; Christiansen, C.

2006-10-03T23:59:59.000Z

134

Cost-Effective Choices of Marine Fuels in a Carbon-Constrained World: Results from a Global Energy Model  

Science Journals Connector (OSTI)

Cost-Effective Choices of Marine Fuels in a Carbon-Constrained World: Results from a Global Energy Model ... † Department

Maria Taljegard; Selma Brynolf; Maria Grahn; Karin Andersson; Hannes Johnson

2014-10-06T23:59:59.000Z

135

On an Investment-Consumption model with transaction costs  

E-Print Network [OSTI]

On an Investment-Consumption model with transaction* Abstract This paper considers the optimal consumption and investment policy for* * an investor of consumption. Dynamic Programming leads to a Variational* * Inequality for the value function

Menaldi, Jose-Luis

136

Constraints on low order models: The cost of simplicity  

E-Print Network [OSTI]

the transition to turbulence and the coherent structures which form. The low order model on which the Self Sustaining Process [10] for turbulence in Couette flow is examined with respect to mean conservation laws

Lebovitz, Norman

137

Modeling of residual service life of gas turbine rotors for minimizing replacement costs  

Science Journals Connector (OSTI)

One of the most catastrophic failures observed in gas turbine powered electrical powerplants is the fracture of the turbine rotor. A simplified model consisting of 3 macro-elements is suggested to model the dynamical behavior of the shaft with a propagating ... Keywords: crack propagation, gas-turbine, modeling, power-plant, replacement costs

Eusebia Zouridaki; Vasilios Spitas; Christos Spitas

2007-01-01T23:59:59.000Z

138

Using Computation to Enhance LEDs  

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

done at NERSC suggest that nanostructures half the breadth of a DNA strand could improve LED efficiency, especially in the "green gap," a portion of the spectrum where LED...

139

Future Directions in LED Applications  

Science Journals Connector (OSTI)

Another application space that will gain in importance is the use of LED lighting in agricultural applications . LED lighting for horticulture [60] is continuing to be investigated as more continues to be learne...

Robert F. Karlicek Jr. PhD

2014-01-01T23:59:59.000Z

140

Sensitivity of Concentrating Solar Power Trough Performance, Cost and Financing with Solar Advisor Model  

SciTech Connect (OSTI)

A comprehensive solar technology systems analysis model, the Solar Advisor Model (SAM) was developed to support the federal R&D community and the solar industry. This model, developed by staff at NREL and Sandia National Laboratory, is able to model the costs, finances, and performance of concentrating solar power and photovoltaics (PV). Currently, parabolic troughs and concentrating PV are the two concentrating technologies modeled within the SAM environment.

Blair, N.; Mehos, M.; Christensen, C.

2008-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

New and Underutilized Technology: Interior LED/Solid State Lighting |  

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

Interior LED/Solid State Lighting Interior LED/Solid State Lighting New and Underutilized Technology: Interior LED/Solid State Lighting October 4, 2013 - 4:53pm Addthis The following information outlines key deployment considerations for interior LED/solid state lighting within the Federal sector. Benefits Interior LED retrofits are currently viable for down lights, track lighting, sconces, and both line and low voltage task lighting. Replacements for incandescent A-lamps have also been improving rapidly. Replacements for fluorescent tube lighting may be viable for high-cost maintenance areas. Application Interior LED/solid state lighting is a rapidly improving technology currently most applicable for down lights, track lights, task lighting, accenting, high ceiling, and high cost maintenance areas.

142

Hanford River Protection Project Life cycle Cost Modeling Tool to Enhance Mission Planning - 13396  

SciTech Connect (OSTI)

The Life cycle Cost Model (LCM) Tool is an overall systems model that incorporates budget, and schedule impacts for the entire life cycle of the River Protection Project (RPP) mission, and is replacing the Hanford Tank Waste Operations Simulator (HTWOS) model as the foundation of the RPP system planning process. Currently, the DOE frequently requests HTWOS simulations of alternative technical and programmatic strategies for completing the RPP mission. Analysis of technical and programmatic changes can be performed with HTWOS; however, life cycle costs and schedules were previously generated by manual transfer of time-based data from HTWOS to Primavera P6. The LCM Tool automates the preparation of life cycle costs and schedules and is needed to provide timely turnaround capability for RPP mission alternative analyses. LCM is the simulation component of the LCM Tool. The simulation component is a replacement of the HTWOS model with new capability to support life cycle cost modeling. It is currently deployed in G22, but has been designed to work in any full object-oriented language with an extensive feature set focused on networking and cross-platform compatibility. The LCM retains existing HTWOS functionality needed to support system planning and alternatives studies going forward. In addition, it incorporates new functionality, coding improvements that streamline programming and model maintenance, and capability to input/export data to/from the LCM using the LCM Database (LCMDB). The LCM Cost/Schedule (LCMCS) contains cost and schedule data and logic. The LCMCS is used to generate life cycle costs and schedules for waste retrieval and processing scenarios. It uses time-based output data from the LCM to produce the logic ties in Primavera P6 necessary for shifting activities. The LCM Tool is evolving to address the needs of decision makers who want to understand the broad spectrum of risks facing complex organizations like DOE-RPP to understand how near-term programmatic decisions affect life cycle costs and commitments. (authors)

Dunford, Gary [AEM Consulting, LLC, 1201 Jadwin Avenue, Richland, WA 99352 (United States)] [AEM Consulting, LLC, 1201 Jadwin Avenue, Richland, WA 99352 (United States); Williams, David [WIT, Inc., 11173 Oak Fern Court, San Diego, CA 92131 (United States)] [WIT, Inc., 11173 Oak Fern Court, San Diego, CA 92131 (United States); Smith, Rick [Knowledge Systems Design, Inc., 13595 Quaker Hill Cross Rd, Nevada City, CA 95959 (United States)] [Knowledge Systems Design, Inc., 13595 Quaker Hill Cross Rd, Nevada City, CA 95959 (United States)

2013-07-01T23:59:59.000Z

143

LED Record Efficacy and Brightness  

Broader source: Energy.gov [DOE]

Designed for general lighting applications such as street, industrial, and parking garage lighting, the Cree XLamp® power LED sets new records for LED brightness and efficacy, up to 85 lm/W at 350 mA. The XLamp utilizes Cree's performance breakthrough EZBright™ LED chip; both products include technology that was developed in part with R&D funding support from DOE.

144

Process-Based Cost Modeling to Support Target Value Design  

E-Print Network [OSTI]

134 A.4 Google – SketchUp ProManage 2009 file format. 3D SketchUp 6.0 models of a towerS KETCH U P P RO 6.0 SketchUp Pro 6.0 has limited functions

Nguyen, Hung Viet

2010-01-01T23:59:59.000Z

145

About the SimCCS model A cost surface, i.e. a raster grid of the cost to lay a  

E-Print Network [OSTI]

; · An "offshore scenario" exports CO2 towards the North sea through Normandy and toward an hypothetical storageA B C About the SimCCS model A cost surface, i.e. a raster grid of the cost to lay a pipeline across each grid cell, was estimated using geographical datasets including protected areas, existing gas

Boyer, Edmond

146

A system-level cost-of-energy wind farm layout optimization with landowner modeling  

SciTech Connect (OSTI)

This work applies an enhanced levelized wind farm cost model, including landowner remittance fees, to determine optimal turbine placements under three landowner participation scenarios and two land-plot shapes. Instead of assuming a continuous piece of land is available for the wind farm construction, as in most layout optimizations, the problem formulation represents landowner participation scenarios as a binary string variable, along with the number of turbines. The cost parameters and model are a combination of models from the National Renewable Energy Laboratory (NREL), Lawrence Berkeley National Laboratory, and Windustiy. The system-level cost-of-energy (COE) optimization model is also tested under two land-plot shapes: equally-sized square land plots and unequal rectangle land plots. The optimal COEs results are compared to actual COE data and found to be realistic. The results show that landowner remittances account for approximately 10% of farm operating costs across all cases. Irregular land-plot shapes are easily handled by the model. We find that larger land plots do not necessarily receive higher remittance fees. The model can help site developers identify the most crucial land plots for project success and the optimal positions of turbines, with realistic estimates of costs and profitability. (C) 2013 Elsevier Ltd. All rights reserved.

Chen, Le [Ames Laboratory; MacDonald, Erin [Ames Laboratory

2013-10-01T23:59:59.000Z

147

An enumerative technique for modeling wind power variations in production costing  

SciTech Connect (OSTI)

Production cost, generation expansion, and reliability models are used extensively by utilities in the planning process. Most models do not provide adequate means for representing the full range of potential variation in wind power plants. In order to properly account for expected variation in wind-generated electricity with these models, the authors describe an enumerated probabilistic approach that is performed outside the production cost model, compare it with a reduced enumerated approach, and present some selected utility results. The technique can be applied to any model, and can considerably reduce the number of model runs as compared to the full enumerated approach. They use both a load duration curve model and a chronological model to measure wind plant capacity credit, and also present some other selected results.

Milligan, M.R. [National Renewable Energy Lab., Golden, CO (United States); Graham, M.S. [Tri-State Generation and Transmission Association, Inc., Denver, CO (United States)

1997-04-01T23:59:59.000Z

148

Study: Environmental Benefits of LEDs Greater Than CFLs | Department of  

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

Study: Environmental Benefits of LEDs Greater Than CFLs Study: Environmental Benefits of LEDs Greater Than CFLs Study: Environmental Benefits of LEDs Greater Than CFLs December 9, 2013 - 4:13pm Addthis A three-part Energy Department-funded study indicates LEDs are more environmentally friendly than compact fluorescent and incandescent lights. | Energy Department graphic A three-part Energy Department-funded study indicates LEDs are more environmentally friendly than compact fluorescent and incandescent lights. | Energy Department graphic Jim Brodrick Lighting Program Manager MORE RESOURCES Find out how LED lighting works Get project planning and analysis tools Subscribe to Solid-State Lighting's email distribution list Increasingly, light emitting diode (LED) screw-based lamps are providing consumers a cost-effective and energy efficient alternative to compact

149

Study: Environmental Benefits of LEDs Greater Than CFLs | Department of  

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

Study: Environmental Benefits of LEDs Greater Than CFLs Study: Environmental Benefits of LEDs Greater Than CFLs Study: Environmental Benefits of LEDs Greater Than CFLs December 9, 2013 - 4:13pm Addthis A three-part Energy Department-funded study indicates LEDs are more environmentally friendly than compact fluorescent and incandescent lights. | Energy Department graphic A three-part Energy Department-funded study indicates LEDs are more environmentally friendly than compact fluorescent and incandescent lights. | Energy Department graphic Jim Brodrick Lighting Program Manager MORE RESOURCES Find out how LED lighting works Get project planning and analysis tools Subscribe to Solid-State Lighting's email distribution list Increasingly, light emitting diode (LED) screw-based lamps are providing consumers a cost-effective and energy efficient alternative to compact

150

Alternative water sources: Desalination model provides life-cycle costs of facility  

E-Print Network [OSTI]

Story by Danielle Supercinski tx H2O | pg. 8 Alternative water sourcees Desalination model provides life-cycle costs of facility platform and design standards as DESAL ECONOMICS?, but created to analyze con- ventional surface water treatment... to determine the economic and financial life-cycle costs of building and operating four water treatment facilities in South Texas. One facility was the Southmost Regional Water Authority Regional Desalination Plant near Brownsville. Sturdi- vant said...

Supercinski, Danielle

2009-01-01T23:59:59.000Z

151

Science Mission Directorate Policy Meeting the 70% JCL Requirement in PI-led Missions  

E-Print Network [OSTI]

1 Science Mission Directorate Policy Meeting the 70% JCL Requirement in PI-led Missions SMD consistent with the program's joint confidence level. (b) SMD's competitively-selected, PI-led missions a cost cap for competitively-selected, PI-led mission proposals. The cost cap is restated, if necessary

Christian, Eric

152

Project Controls to Minimize Cost and Schedule Overruns: A Model, Research Agenda, and Initial Results  

E-Print Network [OSTI]

1 of 27 Project Controls to Minimize Cost and Schedule Overruns: A Model, Research Agenda been successfully applied to the study of projects for many years. While this modeling has clearly defined the structures which create project dynamics, it has been less helpful in providing explicit

Ford, David N.

153

Probabilistic Modeling and Evaluation of the Performance, Emissions, and Cost of Texaco Gasifier-  

E-Print Network [OSTI]

Probabilistic Modeling and Evaluation of the Performance, Emissions, and Cost of Texaco Gasifier.0 DOCUMENTATION OF THE PLANT PERFORMANCE SIMULATION MODEL IN ASPEN OF THE COAL-FUELED TEXACO-GASIFIER BASED IGCC to the Gasifier............................... 40 3.2.2 Gasification

Frey, H. Christopher

154

Modeling Photovoltaic and Concentrating Solar Power Trough Performance, Cost, and Financing with the Solar Advisor Model: Preprint  

SciTech Connect (OSTI)

A comprehensive solar technology systems analysis model, the Solar Advisor Model (SAM), has been developed to support the federal R&D community and the solar industry by staff at the National Renewable Energy Laboratory (NREL) and Sandia National Laboratory. This model is able to model the finances, incentives, and performance of flat-plate photovoltaic (PV), concentrating PV, and concentrating solar power (specifically, parabolic troughs). The primary function of the model is to allow users to investigate the impact of variations in performance, cost, and financial parameters to better understand their impact on key figures of merit. Figures of merit related to the cost and performance of these systems include, but aren't limited to, system output, system efficiencies, levelized cost of energy, return on investment, and system capital and O&M costs. There are several models within SAM to model the performance of photovoltaic modules and inverters. This paper presents an overview of each PV and inverter model, introduces a new generic model, and briefly discusses the concentrating solar power (CSP) parabolic trough model. A comparison of results using the different PV and inverter models is also presented.

Blair, N.; Mehos, M.; Christensen, C.; Cameron, C.

2008-05-01T23:59:59.000Z

155

HANFORD RIVER PROTECTION PROJECT ENHANCED MISSION PLANNING THROUGH INNOVATIVE TOOLS LIFECYCLE COST MODELING AND AQUEOUS THERMODYNAMIC MODELING - 12134  

SciTech Connect (OSTI)

Two notable modeling efforts within the Hanford Tank Waste Operations Simulator (HTWOS) are currently underway to (1) increase the robustness of the underlying chemistry approximations through the development and implementation of an aqueous thermodynamic model, and (2) add enhanced planning capabilities to the HTWOS model through development and incorporation of the lifecycle cost model (LCM). Since even seemingly small changes in apparent waste composition or treatment parameters can result in large changes in quantities of high-level waste (HLW) and low-activity waste (LAW) glass, mission duration or lifecycle cost, a solubility model that more accurately depicts the phases and concentrations of constituents in tank waste is required. The LCM enables evaluation of the interactions of proposed changes on lifecycle mission costs, which is critical for decision makers.

PIERSON KL; MEINERT FL

2012-01-26T23:59:59.000Z

156

BatPaC - Battery Performance and Cost model - About BatPaC  

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

About BatPaC About BatPaC The starting point for this work is based on the decades of battery design work headed by Paul Nelson at Argonne National Laboratory. These design models were based in Microsoft Office Excel® resulting in a flexible and straightforward format. The current effort builds on this previous experience by adding a manufacturing cost calculation as well as increasing the fidelity of the performance calculations all while maintaining efficient calculations (e.g. fractions of a second). The cost of a battery will change depending upon the materials chemistry, battery design, and manufacturing process. Therefore, it is necessary to account for all three areas with a bottom-up cost model. Other bottom-up cost models exist but are not generally available and have not been explicitly detailed in a public document. The motivation for our approach is based on a need for a battery performance and cost model that meets the following requirements:

157

Capturing the impact of fuel price on jet aircraft operating costs with Leontief technology and econometric models  

Science Journals Connector (OSTI)

Investigation of the airline response to a fuel price increase is in effect an investigation of the role of variable interactions in aircraft cost models. We examine the impact of fuel price on aircraft costs and airline operational strategies by developing two classes of operating cost models for jet aircraft and comparing the results. The translog operating cost model is a flexible functional form that provides a detailed representation of the empirical relationship between fuel cost and operating cost, allowing for substitution, scale, aircraft age, and variable interactions to be captured. The simpler Leontief model assumes that inputs of a cost model must be used in fixed proportions regardless of their prices. While it does not capture variable interactions, the Leontief model is more transparent, requires fewer inputs, and allows the contribution of a single factor, such as fuel price, to operating cost to be more easily isolated. An analysis of the translog operating cost model reveals that as fuel price increases, airlines will take steps to use fuel more efficiently by leveraging other inputs; a comparison of the translog and the Leontief technology models, however, show that the potential for this supplier input substitution for fuel is rather modest. By building the two operating cost models and comparing their predictions, we illustrate a method to determine the prediction potential of a Leontief technology model and assess the importance of input substitution at the vehicle level.

Megan Smirti Ryerson; Mark Hansen

2013-01-01T23:59:59.000Z

158

Simulating the Value of Concentrating Solar Power with Thermal Energy Storage in a Production Cost Model  

SciTech Connect (OSTI)

Concentrating solar power (CSP) deployed with thermal energy storage (TES) provides a dispatchable source of renewable energy. The value of CSP with TES, as with other potential generation resources, needs to be established using traditional utility planning tools. Production cost models, which simulate the operation of grid, are often used to estimate the operational value of different generation mixes. CSP with TES has historically had limited analysis in commercial production simulations. This document describes the implementation of CSP with TES in a commercial production cost model. It also describes the simulation of grid operations with CSP in a test system consisting of two balancing areas located primarily in Colorado.

Denholm, P.; Hummon, M.

2012-11-01T23:59:59.000Z

159

High-Speed LED Illumination Andrew Santos, Christopher Salthouse, Ph.D.  

E-Print Network [OSTI]

High-Speed LED Illumination Andrew Santos, Christopher Salthouse, Ph.D. University of Massachusetts (LEDs) because they are available in a wider range of wavelengths. Research Objectives · Measure LED Frequency Responses · Develop High-Frequency LED Circuit Model · Develop High-Frequency Circuit Model of LED

Mountziaris, T. J.

160

Engineering process and cost model for a conventional corn wet milling facility  

Science Journals Connector (OSTI)

Conventional wet milling of corn is a process designed for the recovery and purification of starch and several coproducts (germ, gluten, fiber and steep liquor). The total starch produced by the wet milling industry in the USA in 2004 equaled 21.5 billion kg, including modified starches and starches used for sweeteners and ethanol production. Process engineering and cost models for a corn wet milling process (for steeping and milling facilities) have been developed for a “generic” processing plant with a capacity of 2.54 million kg of corn per day (100,000 bu/day). The process includes grain cleaning, steeping, germ separation and recovery, fiber separation and recovery, gluten separation and recovery and starch separation. Information for the development of the models was obtained from a variety of technical sources including commercial wet milling companies, industry experts and equipment suppliers. The models were developed using process and cost simulation software (SuperPro Designer®) and include processing information such as composition and flow rates of the various process streams, descriptions of the various unit operations and detailed breakdowns of the operating and capital cost of the facility. Based on the information from the model, we can estimate the cost of production per kilogram of starch using the input prices for corn and other wet milling coproducts. We have also used the model to conduct a variety of sensitivity studies utilizing modifications such as feedstock costs, corn compositional variations, and the sale of wet corn gluten feed. The model is also being used as a base-case for the development of models to test alternative processing technologies and to help in the scale-up and commercialization of new wet milling technologies. This model is available upon request from the authors for educational, non-commercial and research uses.

Edna C. Ramirez; David B. Johnston; Andrew J. McAloon; Winnie Yee; Vijay Singh

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

Marginal Cost Analysis of Two Train-the-Trainer Models for Implementing SafeCare  

E-Print Network [OSTI]

Corso P, Filene J. Programmatic cost analysis of the Familya cellular 3. Yates BT. Cost-inclusive evaluation: A banquetof approaches for including costs, benefits, and cost-

Corso, Phaedra; Taylor, Nathaniel; Bennett, Jordan; Ingels, Justin; Self-Brown, Shannon; Whitaker, Daniel

2014-01-01T23:59:59.000Z

162

NETL-Led Laboratory-Industry-Academia Collaboration Is Accelerating Carbon-Capture Technologies  

Broader source: Energy.gov [DOE]

In 2011, the U.S. Department of Energy’s National Energy Technology Laboratory established the Carbon Capture Simulation Initiative to take carbon-capture concepts from the laboratory to the power plant more quickly, at a lower cost, and with reduced risk than would be accomplished following more traditional research and development pathways. Today, the NETL-led CCSI has proven itself to be a model of successful, effective collaboration among government, industry, and academia.

163

Advanced Leds | Open Energy Information  

Open Energy Info (EERE)

Leds Leds Jump to: navigation, search Name Advanced Leds Place Coventry, England, United Kingdom Zip CV5 6SP Product Advanced Leds develops LED technology for outdoor lighting, including street lighting applications. Coordinates 44.866737°, -72.263927° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.866737,"lon":-72.263927,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

164

Wisconsin LED Plant Benefits from Recovery Act | Department of Energy  

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

Wisconsin LED Plant Benefits from Recovery Act Wisconsin LED Plant Benefits from Recovery Act Wisconsin LED Plant Benefits from Recovery Act April 1, 2010 - 6:58pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE What does this mean for me? LED lights emit more light, have a longer life and provide anywhere from 50 to 70 percent in energy savings. Rudd Lighting has seen a boost from cities tapping Recovery Act funds and seeking energy efficient lighting that will reduce costs. The BetalLED facility, which produced hundreds of thousands of LED products last year, employs about 600 people, and for every job in the plant, eight to 10 more are created outside the company. Workers at a Racine, Wis., manufacturing company are busy filling orders for American cities seeking to brighten their communities with energy

165

Have You Used LED Light Strings? | Department of Energy  

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

LED Light Strings? LED Light Strings? Have You Used LED Light Strings? December 3, 2009 - 7:30am Addthis This week, you read about LED holiday light strings, which can use 90% less energy than regular incandescent light strings. You may even be able to save on the initial costs with rebates from stores or your utility; check to find out what's being offered in your area. Have you used LED light strings? Tell us what you think of them. Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. E-mail your responses to the Energy Saver team at consumer.webmaster@nrel.gov. Addthis Related Articles Save Money with LED Holiday Light Strings Tips to Save Energy During the Holidays Choosing Energy-Saving Lighting Products Saves You Money

166

LED Lighting on the National Mall | Department of Energy  

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

LED Lighting on the National Mall LED Lighting on the National Mall LED Lighting on the National Mall Addthis 1 of 8 Facing East toward the Capitol Building, LED retrofitted lights line the interior paths of the mall while preserving the architectural integrity of the original fixtures. Image: Energy Department Image | Photo by Quentin Kruger (Contractor) | Public Domain Date taken: 2012-01-30 06:00 2 of 8 Energy Secretary Steven Chu discusses the 65% savings on electric bills and lowered maintenance costs the National Parks Service is experiencing by switching to energy efficient LED lights. "Using energy-efficient LED light bulbs is an important way Americans can save money by saving energy," said Secretary Chu. "Investing in an American economy that is built to last includes taking advantage of all of America's energy resources while

167

Wisconsin LED Plant Benefits from Recovery Act | Department of Energy  

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

Wisconsin LED Plant Benefits from Recovery Act Wisconsin LED Plant Benefits from Recovery Act Wisconsin LED Plant Benefits from Recovery Act April 1, 2010 - 6:58pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE What does this mean for me? LED lights emit more light, have a longer life and provide anywhere from 50 to 70 percent in energy savings. Rudd Lighting has seen a boost from cities tapping Recovery Act funds and seeking energy efficient lighting that will reduce costs. The BetalLED facility, which produced hundreds of thousands of LED products last year, employs about 600 people, and for every job in the plant, eight to 10 more are created outside the company. Workers at a Racine, Wis., manufacturing company are busy filling orders for American cities seeking to brighten their communities with energy

168

Enhancing Capacity for Low Emission Development Strategies (EC-LEDS):  

Open Energy Info (EERE)

Enhancing Capacity for Low Emission Development Strategies (EC-LEDS): Enhancing Capacity for Low Emission Development Strategies (EC-LEDS): Distributed Generation Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Enhancing Capacity for Low Emission Development Strategies (EC-LEDS): Distributed Generation Agency/Company /Organization: National Renewable Energy Laboratory Sector: Energy Topics: Low emission development planning, -LEDS Resource Type: Webinar Website: eeredev.nrel.gov/_proofs/video/2013_EC-LEDS/ Cost: Free References: Enhancing Capacity for Low Emission Development Strategies (EC-LEDS): Distributed Generation[1] Overview A webinar on distributed generation, presented by the National Renewable Energy Laboratory, with funding from the U.S. Agency for International Development. This webinar covers the basics of distributed generation, with an emphasis

169

Study of Possible Applications of Currently Available Building Information Modeling Tools for the Analysis of Initial Costs and Energy Costs for Performing Life Cycle Cost Analysis  

E-Print Network [OSTI]

power to the manufacturing industry. The need to satisfy the environmental sustainability requirements, improve operational effectiveness of buildings and apply value engineering principles has increased the dependency on life cycle costing analysis...

Mukherji, Payal Tapandev

2011-02-22T23:59:59.000Z

170

Solid-State Lighting: Using LEDs  

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

Using LEDs to someone by E-mail Using LEDs to someone by E-mail Share Solid-State Lighting: Using LEDs on Facebook Tweet about Solid-State Lighting: Using LEDs on Twitter Bookmark Solid-State Lighting: Using LEDs on Google Bookmark Solid-State Lighting: Using LEDs on Delicious Rank Solid-State Lighting: Using LEDs on Digg Find More places to share Solid-State Lighting: Using LEDs on AddThis.com... Why SSL LED Basics OLED Basics Using LEDs R&D Challenges Market Challenges Using LEDs Resources Using LEDs to Their Best Advantage PDF Establishing LED Equivalency PDF LED Directional Lamps LED MR16 Lamps Recessed LED Downlights PDF General Service LED Lamps What to Ask - A Checklist for Buyers of LED Lighting Products More Resources With their unique design and performance characteristics-such as directional light emission, compact profile, superior optical control,

171

AN ARTIFICIAL NEURAL NETWORK FOR DIMENSIONS AND COST MODELLING OF INTERNAL MICRO-CHANNELS  

E-Print Network [OSTI]

AN ARTIFICIAL NEURAL NETWORK FOR DIMENSIONS AND COST MODELLING OF INTERNAL MICRO Engineering, Dublin City University, Dublin, Ireland ABSTRACT For micro-channel fabrication using laser micro evaluation. Artificial Neural Network (ANN) is one of the numerical methodologies that can be utilised

Lee, Hyowon

172

Modeling and Identification of 2 DOF Low Cost Driving Simulator: Experimental Results  

E-Print Network [OSTI]

consists in motorized rail for the longitudinal movement while the second system consists in motorized yaw and the modeling aspects of a 2 DOF low cost motion platform allowing the restitution of the longitudinal and yaw will be implemented. The whole system is considered as a two coupled systems and linked mechanically. The first system

Paris-Sud XI, Université de

173

Cache Size in a Cost Model for Heterogeneous Skeletons Heriot-Watt University, Edinburgh,  

E-Print Network [OSTI]

Cache Size in a Cost Model for Heterogeneous Skeletons K.A. Armih Heriot-Watt University, Edinburgh, Scotland, UK kaa41@hw.ac.uk G.J. Michaelson Heriot-Watt University, Edinburgh, Scotland, UK G.Michaelson@hw.ac.uk P.W. Trinder Heriot-Watt University, Edinburgh, Scotland, UK P.W.Trinder@hw.ac.uk Abstract High

Trinder, Phil

174

Chemical reactor models of optimal digestion efficiency with constant foraging costs  

E-Print Network [OSTI]

Chemical reactor models of optimal digestion efficiency with constant foraging costs J. David Logan-batch reactor or plug flow reactor. Specifically, we determine the residence time that optimizes the average net , Anthony Joern , & William Wolesensky January 24, 2003 Abstract We develop quantitative optimization

Logan, David

175

Modeling the Performance, Emissions, and Cost of an Entrained-Flow Gasification Combined Cycle System Using  

E-Print Network [OSTI]

1 Modeling the Performance, Emissions, and Cost of an Entrained-Flow Gasification Combined Cycle-based Integrated Gasification Combined Cycle (IGCC) system using ASPEN. ASPEN is a steady-state chemical process-flow Integrated Gasification Combined Cycle (IGCC) system. This study aims at developing a base case analysis

Frey, H. Christopher

176

Universal model for water costs of gas exchange by animals and plants  

E-Print Network [OSTI]

terrestrial animals and plants exchange O2 and CO2 with the atmosphere and thereby incur costs in the currency Hemphill Brown, University of New Mexico, Albuquerque, NM, and approved March 30, 2010 (received for review), the steepness of the gradients for gas and vapor, and the transport mode (convective or diffusive). Model

177

Inventory logistics cost analysis model for the proposed EU intermodal loading unit -- A business case  

Science Journals Connector (OSTI)

This study focuses on the new initiative of the European Union (EU) which deals with simplifying the intermodal product shipment approach that may lead to improvement in the available transportation logistics infrastructure. The analysis involves determining ... Keywords: Intermodal loading unit, buffer stock, intermodal platforms, intermodal transportation, inventory in transit, logistics cost model, multimodal transportation

Sameer Kumar

2008-08-01T23:59:59.000Z

178

Recessed LED Downlights | Department of Energy  

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

Recessed LED Downlights Recessed LED Downlights A Dept of Energy Solid-State Lighting Program technology fact sheet on recessed LED downlights. recesseddownlight.pdf More...

179

LED Frequently Asked Questions | Department of Energy  

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

Frequently Asked Questions LED Frequently Asked Questions This document provides answers to LED frequently asked questions for plant-wide improvements, such as "Are LEDs ready for...

180

Energy Efficiency of LEDs | Department of Energy  

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

of LEDs Energy Efficiency of LEDs This fact sheet discusses the current state of the LED market and discusses package efficacy, luminaire efficacy, and application efficacy....

Note: This page contains sample records for the topic "led cost model" 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

Modeling Resource, Infrastructure, and Policy Cost Layers for Optimizing Renewable Energy Investment and Deployment  

SciTech Connect (OSTI)

This paper presents a framework for creating a common spatial canvass that can bring together considerations of resource availability, infrastructure reliability, and development costs while strategizing renewable energy investment. We describe the underlying models and methodologies that annotate an investment plan for potential sites over a time-period with costs and constraints which may be imposed on distance from infrastructure, system impact on infrastructure, and policy incentives. The framework is intended as an enabler for visualization, optimization and decision making across diverse dimensions while searching for lucrative investment-plans.

Sukumar, Sreenivas R [ORNL] [ORNL; Olama, Mohammed M [ORNL] [ORNL; Shankar, Mallikarjun [ORNL] [ORNL; Hadley, Stanton W [ORNL] [ORNL; Nutaro, James J [ORNL] [ORNL; Protopopescu, Vladimir A [ORNL] [ORNL; Malinchik, Sergey [Lockheed Martin Corporation] [Lockheed Martin Corporation; Ives, Barry [Lockheed Martin Corporation] [Lockheed Martin Corporation

2010-01-01T23:59:59.000Z

182

Analysis of the Newphew/Spore model for determining costs of coal mining in Appalachia. Computer model study. Final report  

SciTech Connect (OSTI)

The purpose of the study was primarily to determine whether a computer program developed to determine the costs of coal surface mining and reclamation in Appalachia was capable of being responsive to the needs of the Office of Surface Mining for projecting the extraction costs of coal in support of the Small Operator Assistance Program. The study analysis validated the model and adapted it to specific small operator needs in terms of user flexibility. It found that the model as originally programmed was subject to a number of limitations and functional constraints. Although a substantial loosening of these constraints was not feasible within the current scope of work, it did establish an approach to reprogram the model to take into account dynamically certain previously static aspects of the model. The approach was implemented in order to made the model more useful and to establish a baseline for future development.

Nephew, E.A.; Spore, R.L.

1980-06-06T23:59:59.000Z

183

Sandia National Laboratories: Blue LED  

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

electroluminescence was first reported by H.J. Round in 1907, and the first light-emitting diode (LED) was reported by O.V. Losev in 1927. Not until the birth of semiconductor...

184

Sandia National Laboratories: Red LED  

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

electroluminescence was first reported by H.J. Round in 1907, and the first light-emitting diode (LED) was reported by O.V. Losev in 1927. Not until the birth of semiconductor...

185

Maintenance Practices for LED Streetlights  

Broader source: Energy.gov [DOE]

This April 14, 2014 webinar answered important questions about the maintenance and reliability of LED streetlights, and how to take these issues into account when planning and preparing for a...

186

Sandia National Laboratories: white LED  

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

white LED Brief History of Solid-State Lighting Technology On June 5, 2013, in Semiconductor electroluminescence was first reported by H.J. Round in 1907, and the first...

187

Biomedical devices from ultraviolet LEDs  

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

Biomedical devices from ultraviolet LEDs Biomedical devices from ultraviolet LEDs Light-emitting nanocrystal diodes go ultraviolet Biomedical devices with active components could be made from nanostructured systems. February 24, 2012 Researcher working with nanocrystals A researcher at LANL works with nanocrystals. Get Expertise Researcher Sergio Brovelli Physical Chem & Applied Spectroscopy Email Research Team Leader Alberto Paleari University of Milano-Bicocca in Italy Such devices could, for example, selectively activate light-sensitive drugs for better medical treatment or probe for the presence of fluorescent markers in medical diagnostics. LEDs produce light in the ultraviolet range A process for creating glass-based, inorganic light-emitting diodes (LEDs) that produce light in the ultraviolet range has been developed by a

188

Observed Minimum Illuminance Threshold for Night Market Vendors in Kenya who use LED Lamps  

SciTech Connect (OSTI)

Creation of light for work, socializing, and general illumination is a fundamental application of technology around the world. For those who lack access to electricity, an emerging and diverse range of LED based lighting products hold promise for replacing and/or augmenting their current fuel-based lighting sources that are costly and dirty. Along with analysis of environmental factors, economic models for total cost-ofownership of LED lighting products are an important tool for studying the impacts of these products as they emerge in markets of developing countries. One important metric in those models is the minimum illuminance demanded by end-users for a given task before recharging the lamp or replacing batteries. It impacts the lighting service cost per unit time if charging is done with purchased electricity, batteries, or charging services. The concept is illustrated in figure 1: LED lighting products are generally brightest immediately after the battery is charged or replaced and the illuminance degrades as the battery is discharged. When a minimum threshold level of illuminance is reached, the operational time for the battery charge cycle is over. The cost to recharge depends on the method utilized; these include charging at a shop at a fixed price per charge, charging on personal grid connections, using solar chargers, and purchasing dry cell batteries. This Research Note reports on the observed"charge-triggering" illuminance level threshold for night market vendors who use LED lighting products to provide general and task oriented illumination. All the study participants charged with AC power, either at a fixed-price charge shop or with electricity at their home.

Johnstone, Peter; Jacobson, Arne; Mills, Evan; Radecsky, Kristen

2009-03-21T23:59:59.000Z

189

An Earned Schedule-based regression model to improve cost estimate at completion  

Science Journals Connector (OSTI)

Abstract Traditional Earned Value Management (EVM) index-based methods for Cost Estimate at Completion (CEAC) of an ongoing project have been known for their limitations inherent with both the assumption that past EVM data is the best available information and early-stage unreliability. In an attempt to overcome such limitations, a new CEAC methodology is proposed based on a modified index-based formula predicting expected cost for the remaining work with the Gompertz growth model via nonlinear regression curve fitting. Moreover, the proposed equation accounts for the schedule progress as a factor of cost performance. To this end, it integrates into its equation an Earned Schedule-based factor indicating expected duration at completion. The proposed model shows itself to be more accurate and precise in all early, middle, and late stage estimates than those of four compared traditional index-based formulae. The developed methodology is a practical tool for Project Managers to better incorporate the progress status into the task of computing CEAC and is a contribution to extending EVM research to better capture the inherent relation between cost and schedule factors.

Timur Narbaev; Alberto De Marco

2014-01-01T23:59:59.000Z

190

LED traffic lights: New technology signals major energy savings  

SciTech Connect (OSTI)

Using light-emitting diode technology to replace incandescent lamps in traffic signals promises energy savings upwards of 60 percent for each of the estimated quarter of a million controlled intersections in the United States. LED units use only 9 to 25 watts instead of the 67 to 150 watts used by each incandescent lamp. Though their first cost is relatively high, energy savings result in paybacks of 1 to 5 years. LED retrofit kits are available for red signal disks and arrows, and installations in several states have proven successful, although minor improvements are addressing concerns about varying light output and controller circuitry. Retrofitting green lamps is not yet feasible, because color standards of the Institute of Traffic Engineers cannot be met with existing LED technology. Yellow lamps have such low duty factors (they`re on only 3 percent of the time) that retrofitting with LED signals is not cost-effective. LEDs last much longer than incandescents, allowing municipalities to not only reduce their electricity bills, but to save on maintenance costs as well. As further incentive, some utilities are beginning to implement rebate programs for LED traffic signal retrofits. Full approval of LED units is still awaited from the Institute of Traffic Engineers (ITE), the standard-setting body for traffic safety devices. Local and state governments ultimately decide what specifications to require for traffic lights, and the growing body of successful field experience with LEDs appears to be raising their comfort level with the technology. The California Department of Transportation is developing an LED traffic light specification, and two California utilities, Southern California Edison and Pacific Gas and Electric, have provided rebates for some pilot installations.

Houghton, D.

1994-12-31T23:59:59.000Z

191

LED lamp color control system and method  

SciTech Connect (OSTI)

An LED lamp color control system and method including an LED lamp having an LED controller 58; and a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 determines whether the LED source 80 is in a feedback controllable range, stores measured optical flux for the LED source 80 when the LED source 80 is in the feedback controllable range, and bypasses storing the measured optical flux when the LED source 80 is not in the feedback controllable range.

Gaines, James; Clauberg, Bernd; Van Erp, Josephus A.M.

2013-02-05T23:59:59.000Z

192

LED lamp power management system and method  

DOE Patents [OSTI]

An LED lamp power management system and method including an LED lamp having an LED controller 58; a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 reduces power loss in one of the channel switch 62 and the shunt switch 68 when LED lamp electronics power loss (P.sub.loss) exceeds an LED lamp electronics power loss limit (P.sub.lim); and each of the channel switches 62 receives a channel switch control signal 63 from the LED controller 58 and each of the shunt switches 68 receives a shunt switch control signal 69 from the LED controller 58.

Gaines, James; Clauberg, Bernd; Van Erp, Josephus A. M.

2013-03-19T23:59:59.000Z

193

Multicolor, High Efficiency, Nanotextured LEDs  

SciTech Connect (OSTI)

We report on research results in this project which synergize advanced material science approaches with fundamental optical physics concepts pertaining to light-matter interaction, with the goal of solving seminal problems for the development of very high performance light emitting diodes (LEDs) in the blue and green for Solid State Lighting applications. Accomplishments in the duration of the contract period include (i) heteroepitaxy of nitrogen-polar LEDs on sapphire, (ii) heteroepitaxy of semipolar (11{bar 2}2) green LEDs on sapphire, (iii) synthesis of quantum-dot loaded nanoporous GaN that emits white light without phosphor conversion, (iv) demonstration of the highest quality semipolar (11{bar 2}2) GaN on sapphire using orientation-controlled epitaxy, (v) synthesis of nanoscale GaN and InGaN medium, and (vi) development of a novel liftoff process for manufacturing GaN thin-film vertical LEDs. The body of results is presented in this report shows how a solid foundation has been laid, with several noticeable accomplishments, for innovative research, consistent with the stated milestones.

Jung Han; Arto Nurmikko

2011-09-30T23:59:59.000Z

194

Analytical model for solar PV and CSP electricity costs: Present LCOE values and their future evolution  

Science Journals Connector (OSTI)

In this paper we first make a review of the past annual production of electricity and the cumulative installed capacity for photovoltaic (PV) and concentrating solar power (CSP) technologies. This together with the annual costs of PV modules and CSP systems allows us the determination of the experience curves and the corresponding learning rates. Then, we go over a rigorous exposition of the methodology employed for the calculation of the value of the levelized cost of electricity (LCOE) for PV and CSP. Based on this knowledge, we proceed to establish a mathematical model which yields closed-form analytical expressions for the present value of the LCOE, as well as its future evolution (2010–2050) based on the International Energy Agency roadmaps for the cumulative installed capacity. Next, we explain in detail how specific values are assigned to the twelve independent variables which enter the LCOE formula: solar resource, discount and learning rates, initial cost and lifetime of the system, operational and maintenance costs, etc. With all this background, and making use of a simple computer simulation program, we can generate the following: sensitivity analysis curves, graphs on the evolution of the LCOE in the period 2010–2050, and calculations of the years at which grid parities will be reached. These representations prove to be very useful in energy planning policies, like tariff-in schemes, tax exemptions, etc., and in making investment decisions, since they allow, for a given location, to directly compare the costs of PV vs CSP power generation technologies for the period 2010–2050. Among solar technologies, PV seems always more appropriate for areas located in middle to high latitudes of the Earth, while CSP systems, preferably with thermal storage incorporated, yield their best performance in arid areas located at relatively low latitudes.

J. Hernández-Moro; J.M. Martínez-Duart

2013-01-01T23:59:59.000Z

195

Hour-by-Hour Cost Modeling of Optimized Central Wind-Based Water Electrolysis Production  

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

Hour-by-Hour Cost Hour-by-Hour Cost Modeling of Optimized Central Wind-Based Water Electrolysis Production Genevieve Saur (PI), Chris Ainscough (Presenter), Kevin Harrison, Todd Ramsden National Renewable Energy Laboratory January 17 th , 2013 This presentation does not contain any proprietary, confidential, or otherwise restricted information 2 Acknowledgements * This work was made possible by support from the U.S. Department of Energy's Fuel Cell Technologies Office within the Office of Energy Efficiency and Renewable Energy (EERE). http://www.eere.energy.gov/topics/hydrogen_fuel_cells.html * NREL would like to thank our DOE Technology Development Managers for this project, Sara Dillich, Eric Miller, Erika Sutherland, and David Peterson. * NREL would also like to acknowledge the indirect

196

The value of windpower: An investigation using a qualified production cost model  

SciTech Connect (OSTI)

As part of the US Department of Energy`s Wind Energy Program at the National Renewable Energy Laboratory, we are using the Environmental Defense Fund`s Electric Utility Financial & Production Cost Model (Elfin) as a tool to determine the value of wind energy to specific utilities. The cases we have developed exercise a number of options in the way in which wind energy is treated: (1) as a load modifer (negative load); (2) as a quick-start supply-side resource with hourly varying output; and (3) probabilistically, using time-varying Weibull distributions. By using two wind speed distributions, two different wind turbines, and two different utilities, we show what the wind turbine cost/kW might be that results in a positive value of wind energy for these utilities.

Milligan, M.R.; Miller, A.H.

1993-07-01T23:59:59.000Z

197

Locally Led Conservation The Local Work Group  

E-Print Network [OSTI]

1 Locally Led Conservation & The Local Work Group Mark Habiger NRCS #12;2 What Is "Locally Led ­ 5. Implementing solutions ­ 6. Measuring their success #12;3 The Locally Led Principle Locally led-Economic Concerns · Program Identification · Stakeholder Commitment #12;6 Who Leads the Locally Led Effort? · Local

198

Determining Wind Turbine Gearbox Model Complexity Using Measurement Validation and Cost Comparison: Preprint  

SciTech Connect (OSTI)

The Gearbox Reliability Collaborative (GRC) has conducted extensive field and dynamometer test campaigns on two heavily instrumented wind turbine gearboxes. In this paper, data from the planetary stage is used to evaluate the accuracy and computation time of numerical models of the gearbox. First, planet-bearing load and motion data is analyzed to characterize planetary stage behavior in different environments and to derive requirements for gearbox models and life calculations. Second, a set of models are constructed that represent different levels of fidelity. Simulations of the test conditions are compared to the test data and the computational cost of the models are compared. The test data suggests that the planet-bearing life calculations should be made separately for each bearing on a row due to unequal load distribution. It also shows that tilting of the gear axes is related to planet load share. The modeling study concluded that fully flexible models were needed to predict planet-bearing loading in some cases, although less complex models were able to achieve good correlation in the field-loading case. Significant differences in planet load share were found in simulation and were dependent on the scope of the model and the bearing stiffness model used.

LaCava, W.; Xing, Y.; Guo, Y.; Moan, T.

2012-04-01T23:59:59.000Z

199

An adaptive agent-based modeling approach for analyzing the influence of transaction costs on emissions trading markets  

Science Journals Connector (OSTI)

Transaction costs are considered an essential factor that can adversely affect the performance of emissions trading markets. However, most studies are based on a static analyzing framework, making it difficult to simulate real economic situations, in ... Keywords: Agent-based model, Emissions trading, Market efficiency, Transaction costs

Bing Zhang; Yongliang Zhang; Jun Bi

2011-04-01T23:59:59.000Z

200

High-resolution modeling of the western North American power system demonstrates low-cost and low-carbon futures  

E-Print Network [OSTI]

High-resolution modeling of the western North American power system demonstrates low-cost and low energy Carbon emissions a b s t r a c t Decarbonizing electricity production is central to reducing of resource cost scenarios, most coal power plants would be replaced by solar, wind, gas, and/or nuclear

Kammen, Daniel M.

Note: This page contains sample records for the topic "led cost model" 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

Solid-State Lighting: LED Lighting Facts  

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

Market-Based Programs Printable Version Share this resource Send a link to Solid-State Lighting: LED Lighting Facts to someone by E-mail Share Solid-State Lighting: LED Lighting Facts on Facebook Tweet about Solid-State Lighting: LED Lighting Facts on Twitter Bookmark Solid-State Lighting: LED Lighting Facts on Google Bookmark Solid-State Lighting: LED Lighting Facts on Delicious Rank Solid-State Lighting: LED Lighting Facts on Digg Find More places to share Solid-State Lighting: LED Lighting Facts on AddThis.com... LED Lighting Facts CALiPER Program Standards Development Technical Information Network Gateway Demonstrations Municipal Consortium Design Competitions LED Lighting Facts LED lighting facts - A Program of the U.S. DOE DOE's LED Lighting Facts® program showcases LED products for general

202

Tests gauge LED sensors for fuel-dye measurements  

SciTech Connect (OSTI)

The goal of this work was to develop a low cost, robust sensor to allow direct measurement of Solvent Red 164 dye concentration in off-road fuel at refineries and fuel terminals. Optical absorption sensors based on light emitting diodes (LEDs) are rugged, low-cost, have low power consumption, and can be designed to be intrinsically safe.LED-based systems have been used in a variety of chemical detection applications including heavy metals, pH, CO2, and O2. The approach for this work was to develop a sensor that could be mounted on a pipeline sight glass, precluding the need for direct contact of the sensor with the fuel. Below is described the design and testing of three different LED/photodiode sensors utilizing reflectance spectrometry for the measurement of dye concentration.

Ozanich, Richard M.; Lucke, Richard B.; Melville, Angela M.; Wright, Bob W.

2009-10-19T23:59:59.000Z

203

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

204

Studies on machine learning models for misfire detection and vehicle condition monitoring: a low cost approach; -.  

E-Print Network [OSTI]

??The rapid growth of transportation systems mostly using internal combustion (IC) engines has led to a wide range of environmental challenges, demanding immediate attention. Misfire… (more)

Babu Devasenapati, S

2012-01-01T23:59:59.000Z

205

Hand- en hoekstukken met LED-verlichting  

Science Journals Connector (OSTI)

Een groot voordeel van LED-verlichting is dat deze vorm van verlichting ... geeft als de conventionele verlichtingstechnieken. Daarmee is LED-licht bijna gelijk aan daglicht.

   

2009-04-01T23:59:59.000Z

206

Federally Led Accident Investigation Reports | Department of...  

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

Federally Led Accident Investigation Reports Federally Led Accident Investigation Reports Includes Pre-March 2011 Type A Reports September 1, 1998 Type A Accident Investigation...

207

General Service LED Lamps | Department of Energy  

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

DOE SSL technology fact sheet that compares general service LED light bulbs with incandescent and CFL bulbs. ledgeneral-service-lamps.pdf More Documents & Publications LED...

208

A proposed cost-benefit analysis model for physical form analysis for a futuristic submarine decision support system  

E-Print Network [OSTI]

This thesis proposes a model for cost-benefit analysis for physical form selection of a decision support tool, primarily to support system acquisition decisions that need to be made early in the system life cycle. By ...

Bhattacharjee, Dhiman

2007-01-01T23:59:59.000Z

209

Keeping Pace with LED Lighting Trends | Department of Energy  

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

Keeping Pace with LED Lighting Trends Keeping Pace with LED Lighting Trends Keeping Pace with LED Lighting Trends October 23, 2013 - 10:41am Addthis This year's SSL Market Introduction Workshop will take place in Portland, Oregon. | Photo courtesy of Travel Portland This year's SSL Market Introduction Workshop will take place in Portland, Oregon. | Photo courtesy of Travel Portland Jim Brodrick Lighting Program Manager Rapid advances in solid-state lighting (SSL) technology are reducing the cost, improving the performance and quality, and bringing new lighting options--light emitting diodes (LEDs) to the market. But for lighting and energy efficiency industry professionals this seemingly good news can be "too much of a good thing." Imagine the challenge of making smart institutional purchasing decisions or designing

210

Methods | Transparent Cost Database  

Open Energy Info (EERE)

information NREL has developed the following cost of energy tools: System Advisor Model (SAM): https:sam.nrel.gov SAM makes performance predictions and cost of...

211

ORCED: A model to simulate the operations and costs of bulk-power markets  

SciTech Connect (OSTI)

Dramatic changes in the structure and operation of US bulk-power markets require new analytical tools. The authors developed the Oak Ridge Competitive Electricity Dispatch (ORCED) model to analyze a variety of public-policy issues related to the many changes underway in the US electricity industry. Such issues include: policy and technology options to reduce carbon emissions from electricity production; the effects of electricity trading between high- and low-cost regions on consumers and producers in both regions; the ability of the owners of certain generating units to exercise market power as functions of the transmission link between two regions and the characteristics of the generating units and loads in each region; and the market penetration of new energy-production and energy-use technologies and the effects of their adoption on fuel use, electricity use and costs, and carbon emissions. ORCED treats two electrical systems connected by a single transmission link ORCED uses two load-duration curves to represent the time-varying electricity consumption in each region. The two curves represent peak and offpeak seasons. User specification of demand elasticities permits ORCED to estimate the effects of changes in electricity price, both overall and hour by hour, on overall electricity use and load shapes. ORCED represents the electricity supply in each region with 26 generating units. The two regions are connected by a single transmission link. This link is characterized by its capacity (MW), cost ({cents}/kWh), and losses (%). This report explains the inputs to, outputs from, and operation of ORCED. It also presents four examples showing applications of the model to various public-policy issues related to restructuring of the US electricity industry.

Hadley, S.; Hirst, E.

1998-06-01T23:59:59.000Z

212

Electric and Gasoline Vehicle Lifecycle Cost and Energy-Use Model  

E-Print Network [OSTI]

analyses of the manufacturing cost of the key unique components of electric vehicles: batteries, fuel cells,

Delucchi, Mark; Burke, Andy; Lipman, Timothy; Miller, Marshall

2000-01-01T23:59:59.000Z

213

Diagnostik-Set Göttingen auf White-LED und UV-LED-Basis  

Science Journals Connector (OSTI)

Der Handgriff wurde weiterentwickelt: Ein Wechselaufsatz ermöglicht nun ein einfaches Austauschen der White-LED und der UV-LED.

2014-09-01T23:59:59.000Z

214

LEDS Toolkit and Framework | Open Energy Information  

Open Energy Info (EERE)

LEDS Toolkit and Framework LEDS Toolkit and Framework Jump to: navigation, search Tool Summary LAUNCH TOOL Name: LEDS Toolkit and Methodology Agency/Company /Organization: National Renewable Energy Laboratory Sector: Energy, Land, Water, Climate Topics: Low emission development planning Resource Type: Dataset User Interface: Website, Desktop Application Website: en.openei.org/apps/LEDS/ Cost: Free UN Region: Central Asia, Eastern Asia, South-Eastern Asia, "Pacific" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property., "Latin America and Caribbean" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property., "Western Asia & North Africa" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property., Northern America, "South Asia" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property., "Sub-Saharan Africa" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property., "Western & Eastern Europe" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property.

215

LEDs and Specification for Parking Lots Lighten Energy Load | Department of  

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

LEDs and Specification for Parking Lots Lighten Energy Load LEDs and Specification for Parking Lots Lighten Energy Load LEDs and Specification for Parking Lots Lighten Energy Load March 5, 2013 - 11:17am Addthis At its Supercenter in Leavenworth, Kansas—the first site to implement the LED Site Lighting Specification—Walmart anticipates energy savings of over 125,000 kWh per year and a 30% reduction in maintenance costs. In addition to parking lot lights, LED bollard lights illuminate the pedestrian walkway. Credit: Walmart At its Supercenter in Leavenworth, Kansas-the first site to implement the LED Site Lighting Specification-Walmart anticipates energy savings of over 125,000 kWh per year and a 30% reduction in maintenance costs. In addition to parking lot lights, LED bollard lights illuminate the

216

A Practical Primer to LED Technology  

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

2011 LED Transformations, LLC 2011 LED Transformations, LLC 1 LED Lighting: A Practical Overview DOE Project Management Workshop March 15, 2011 Dr. John W. Curran, President, LED Transformations, LLC On behalf of the U.S. Department of Energy ©2011 LED Transformations, LLC 2 Learning Objectives LED Lighting: A Practical Overview 1. Critical differences between SSL and other lighting technologies 2. Understanding the effect of thermal management on product lifetime 3. How to distinguish good from poor SSL products and applications Residence, Kapalua, HI ©2011 LED Transformations, LLC 3 Copyright Materials This presentation is protected by US and International copyright laws. Reproduction, distribution, display and use of the presentation without

217

LED exit signs: Improved technology leads the way to energy savings  

SciTech Connect (OSTI)

Recent innovations in light-emitting diode (LED) exit signs may make LED signs the best choice among the energy efficient options available. In the past, LED signs have offered low power consumption, projected long lamp life, and low maintenance requirements. Now, the best of the LED signs also offer improved optical designs that reduce their already low power consumption while improving visibility and appearance, and even reduce their cost. LED exit signs are gaining market share, and E Source expects this technology to eventually dominate over incandescent, compact fluorescent, and electroluminescent signs. More research is needed, however, to confirm manufacturers` claims of 20-year operating lives for LED signs. Conservative estimates place the number of exit signs in US buildings at about 40 million. Although each sign represents a very small part of a building`s load, exit signs are ready targets for energy efficiency upgrades -- they operate continuously and most use inefficient incandescent sources. With an LED sign, annual energy and maintenance costs can be reduced by more than 90 percent compared to a typical incandescent sign. Low annual costs help to offset the LED sign`s relatively high first cost. More than 25 utilities offer DSM incentives for energy efficient exit signs, and efficient alternatives are becoming more readily available. Recent improvements in optical designs enable many LED signs to visually out perform other sources. In addition to these benefits, LED exit signs have lower life cycle cost than most other options. The biggest barrier to their success, however, is that their first cost has been considerably higher than competing technologies. LED sign prices are falling rapidly, though, because manufacturers are continually improving optical designs of the fixtures to use fewer LEDs and thus even less energy while providing better performance.

Sardinsky, R.; Hawthorne, S.

1994-12-31T23:59:59.000Z

218

Investigation of self-adaptive LED surgical lighting based on entropy contrast enhancing method  

Science Journals Connector (OSTI)

Abstract Investigation was performed to explore the possibility of enhancing contrast by varying the spectral distribution (SPD) of the surgical lighting. The illumination scenes with different \\{SPDs\\} were generated by the combination of a self-adaptive white light optimization method and the LED ceiling system, the images of biological sample are taken by a CCD camera and then processed by an ‘Entropy’ based contrast evaluation model which is proposed specific for surgery occasion. Compared with the neutral white LED based and traditional algorithm based image enhancing methods, the illumination based enhancing method turns out a better performance in contrast enhancing and improves the average contrast value about 9% and 6%, respectively. This low cost method is simple, practicable, and thus may provide an alternative solution for the expensive visual facility medical instruments.

Peng Liu; Huihui Wang; Yaqin Zhang; Junfei Shen; Rengmao Wu; Zhenrong Zheng; Haifeng Li; Xu Liu

2014-01-01T23:59:59.000Z

219

LED Lighting Freeform Lens for achieving Octagon Spot  

Science Journals Connector (OSTI)

To decreasing the design error caused by the point source model, a method combining freeform and aspherical surface is presented. A LED spotlight lens for realizing octagon spot is...

Shaoyun, Yin; Sun, Xiuhui; Xia, Liangping; Du, Chunlei

220

An adaptive agent-based modeling approach for analyzing the influence of transaction costs on emissions trading markets  

Science Journals Connector (OSTI)

Transaction costs are considered an essential factor that can adversely affect the performance of emissions trading markets. However, most studies are based on a static analyzing framework, making it difficult to simulate real economic situations, in which the dynamic behavior and interaction between firms in an emission trading system are fairly complicated and appear irrational to some extent. Based on an agent-based modeling approach, an artificial sulfur dioxide (SO2) emission trading market is developed to identify the dynamic influence of transaction costs on market efficiency. The simulation results based on empirical data from Jiangsu Province in China reveal that transaction costs have a negligible effect on the market price. However, transaction costs can block a small amount of trading as well as decrease total emission trading amount and market efficiency. Therefore, the policy design of emission trading in China should treat transaction costs carefully.

Bing Zhang; Yongliang Zhang; Jun Bi

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

Performance and cost models for the direct sulfur recovery process. Task 1 Topical report, Volume 3  

SciTech Connect (OSTI)

The purpose of this project is to develop performance and cost models of the Direct Sulfur Recovery Process (DSRP). The DSRP is an emerging technology for sulfur recovery from advanced power generation technologies such as Integrated Gasification Combined Cycle (IGCC) systems. In IGCC systems, sulfur present in the coal is captured by gas cleanup technologies to avoid creating emissions of sulfur dioxide to the atmosphere. The sulfur that is separated from the coal gas stream must be collected. Leading options for dealing with the sulfur include byproduct recovery as either sulfur or sulfuric acid. Sulfur is a preferred byproduct, because it is easier to handle and therefore does not depend as strongly upon the location of potential customers as is the case for sulfuric acid. This report describes the need for new sulfur recovery technologies.

Frey, H.C. [North Carolina State Univ., Raleigh, NC (United States); Williams, R.B. [Carneigie Mellon Univ., Pittsburgh, PA (United States)

1995-09-01T23:59:59.000Z

222

A cost/benefit model for insertion of technological innovation into a total quality management program  

E-Print Network [OSTI]

for measuring quality improvement is the cost of quality. Traditionally, comprehensive quality cost reports have regularly been issued in a fixed format to identify opportunities for improvement and provide guidelines for improvement over time. However, current...

Ratliff, William L

2012-06-07T23:59:59.000Z

223

Cost modeling and design for manufacturing guidelines for advanced composite fabrication  

E-Print Network [OSTI]

Experience shows that the majority of costs are committed during the early stages of the development process. Presently, many cost estimation methods are available to the public for metal processing, but there are almost ...

Haffner, Sascha M. (Sascha Marcel), 1968-

2002-01-01T23:59:59.000Z

224

Costs and Benefits of Climate Policies: An Integrated Economy-Energy-Environment Model Approach for Norway  

Science Journals Connector (OSTI)

Proposals for environmental policies are often preceded by a cost-benefit assessment. Thus, after many years of environmental regulation there exists much information on economic costs and benefits associated ...

Morten Aaserud

1996-01-01T23:59:59.000Z

225

AVCEM: Advanced Vehicle Cost and Energy Use Model. Overview of AVCEM  

E-Print Network [OSTI]

compressor); total cost of materials for the water pump, the hydrogencost); the initial temperature and pressure of hydrogen; the compressorcompressor cost per unit of output ($/hp/million standard ft3 [SCF] of hydrogen/

Delucchi, Mark

2005-01-01T23:59:59.000Z

226

Consequence modeling for nuclear weapons probabilistic cost/benefit analyses of safety retrofits  

SciTech Connect (OSTI)

The consequence models used in former studies of costs and benefits of enhanced safety retrofits are considered for (1) fuel fires; (2) non-nuclear detonations; and, (3) unintended nuclear detonations. Estimates of consequences were made using a representative accident location, i.e., an assumed mixed suburban-rural site. We have explicitly quantified land- use impacts and human-health effects (e.g. , prompt fatalities, prompt injuries, latent cancer fatalities, low- levels of radiation exposure, and clean-up areas). Uncertainty in the wind direction is quantified and used in a Monte Carlo calculation to estimate a range of results for a fuel fire with uncertain respirable amounts of released Pu. We define a nuclear source term and discuss damage levels of concern. Ranges of damages are estimated by quantifying health impacts and property damages. We discuss our dispersal and prompt effects models in some detail. The models used to loft the Pu and fission products and their particle sizes are emphasized.

Harvey, T.F.; Peters, L.; Serduke, F.J.D.; Hall, C.; Stephens, D.R.

1998-01-01T23:59:59.000Z

227

Modeling the Cost Structure of Public Transit Firms: Scale Economies and Functional Form (#09-3435) Michael Iacono, University of Minnesota  

E-Print Network [OSTI]

Modeling the Cost Structure of Public Transit Firms: Scale Economies and Functional Form (#09-3435) Michael Iacono, University of Minnesota Abstract This study analyzes the cost structure of a set of medium in the production of transit services. Short and long-run costs are modeled using two of the more commonly

Levinson, David M.

228

Development of LED mini-Lidar  

Science Journals Connector (OSTI)

In this study, we aim to develop a mini-lidar system using a LED (Light Emitting Diode) as the light source for near-range measurement. Because LED is small size device and its...

Koyama, Moriaki; Shiina, Tatsuo

229

Decisions that led to Y-12  

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

Decisions that led to Y-12 Last week we saw the political and organizational changes that led up to the Manhattan Project being created on August 13, 1942. The S-1 Executive...

230

Smart Lighting: LED Implementation and Ambient Communication Applications  

E-Print Network [OSTI]

Smart Lighting: LED Implementation and Ambient Communication Applications by Nicholas Adrian Galano............................................................................................................................................1 LED Implementation..........................................................................................................................2 LED Energy Usage

Agogino, Alice M.

231

Demonstrating LED and Fiber Optic Lighting in Commissary Applications  

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

Demonstrating LED and Fiber Optic Demonstrating LED and Fiber Optic Lighting in Commissary Applications Joseph Konrade Energy Technology Program Specialist Federal Energy Management Program 2 GOAL OF THE PROJECT * Promote New Lighting Technology * Document Energy Savings * Duplicate the technology * Expand Alternative Financing Opportunities * Include Lighting Technology in Government Projects within Utility Service Territory 3 History * FEMP sponsored E4 audits * Audit designed to review Utility Cost, Operations and Maintenance, New Technology Application * 3 Defense Commissary Agency (DeCA) received services under the agreement with DOE * Fort George G Meade pays a high electricity rate Electricity cost $0.171/kWh (PWC sub-metered rate) * Commissary was previously unmetered - Meter installed during installation of lighting project. New meter showing higher

232

Gradual Spread of Market-Led Industrialization  

E-Print Network [OSTI]

Gradual Spread of Market-Led Industrialization Jeffrey D. Sachs and Xiaokai Yang CID Working Paper Paper no. 11 Gradual Spread of Market-Led Industrialization Jeffrey D. Sachs and Xiaokai Yang* Abstract the network effects of industrialization, though this function is not perfect. Hence, market led

233

LED Lighting Value and Opportunities CONFIDENTIAL  

E-Print Network [OSTI]

LED Lighting ­ Value and Opportunities Paul Fini CREE SBTC CONFIDENTIAL #12;2 Copyright © 2013, Cree Inc. · By now, superior LED efficiency in any application, 10+ year reliability, and high light/yr #12;Copyright © 2013, Cree Inc. 4 LEDs in Various Applications · SSL: requirements vary widely

California at Davis, University of

234

Design and Application of LED Beam Display Based on LED Number Display Interface  

Science Journals Connector (OSTI)

This paper introduces a design actualizing LED beam display. The design directly used LED number display interface on single-chip micro- ... to obtain font and bit interface line through LED number display socket...

Hong Deng; Xiuhui Chang; Yanling Zhang

2012-01-01T23:59:59.000Z

235

A discounted-cost continuous-time flexible manufacturing and operator scheduling model solved by deconvexification over time  

SciTech Connect (OSTI)

A discounted-cost, continuous-time, infinite-horizon version of a flexible manufacturing and operator scheduling model is solved. The solution procedure is to convexify the discrete operator-assignment constraints to obtain a linear program, and then to regain the discreteness and obtain an approximate manufacturing schedule by deconvexification of the solution of the linear program over time. The strong features of the model are the accommodation of linear inequality relations among the manufacturing activities and the discrete manufacturing scheduling, whereas the weak features are intra-period relaxation of inventory availability constraints, and the absence of inventory costs, setup times, and setup charges.

Eaves, B.C.; Rothblum, U.G.

1990-08-01T23:59:59.000Z

236

Summary of: Simulating the Value of Concentrating Solar Power with Thermal Energy Storage in a Production Cost Model (Presentation)  

SciTech Connect (OSTI)

Concentrating solar power (CSP) deployed with thermal energy storage (TES) provides a dispatchable source of renewable energy. The value of CSP with TES, as with other potential generation resources, needs to be established using traditional utility planning tools. Production cost models, which simulate the operation of grid, are often used to estimate the operational value of different generation mixes. CSP with TES has historically had limited analysis in commercial production simulations. This document describes the implementation of CSP with TES in a commercial production cost model. It also describes the simulation of grid operations with CSP in a test system consisting of two balancing areas located primarily in Colorado.

Denholm, P.; Hummon, M.

2013-02-01T23:59:59.000Z

237

DOE Announces Webinars on Maintenance Practices for LED Streetlights...  

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

Maintenance Practices for LED Streetlights, LED Color Stability, and More DOE Announces Webinars on Maintenance Practices for LED Streetlights, LED Color Stability, and More April...

238

A Practical Primer to LED Technology | Department of Energy  

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

A Practical Primer to LED Technology A Practical Primer to LED Technology A Practical Primer to LED Technology More Documents & Publications LED LUMINAIRE LIFETIME: Recommendations...

239

OSRAM SYLVANIA Develops High-Efficiency LED Troffer Replacement  

Broader source: Energy.gov [DOE]

With the help of DOE funding, OSRAM SYLVANIA is developing a high-efficiency LED 2'x2' troffer replacement that is expected to be commercially available in the spring of 2012 and to be cost-competitive with existing troffers of that size. It is projected to have a light output of up to 4,000 lumens, an efficacy of more than 100 lm/W, and a CCT of 3500K.

240

Electric and Gasoline Vehicle Lifecycle Cost and Energy-Use Model  

E-Print Network [OSTI]

= the efficiency of the propane space heater (BTU-delivered/the efficiency of the heater, and the cost of propane. The

Delucchi, Mark; Burke, Andy; Lipman, Timothy; Miller, Marshall

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

Cost modeling and evaluation of capital expenditures in optical multilayer networks  

Science Journals Connector (OSTI)

Optical multilayer networks offer a high degree of freedom in network design, adapting to actual network requirements (demand types, topologies, etc.) and achieving cost-efficient...

Huelsermann, Ralf; Gunkel, Matthias; Meusburger, Clara; Schupke, Dominic A

2008-01-01T23:59:59.000Z

242

EC-LEDS Transport | Open Energy Information  

Open Energy Info (EERE)

EC-LEDS Transport EC-LEDS Transport Jump to: navigation, search Name EC-LEDS Transport Agency/Company /Organization United States Department of State Partner National Renewable Energy Laboratory Sector Climate Focus Area Transportation Topics Background analysis, Baseline projection, Co-benefits assessment, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, Policies/deployment programs Program Start 2011 Country Global References Transportation Assessment Toolkit[1] "Enhancing Capacity for Low Emission Development Strategies (EC-LEDS) is a U.S. Government initiative to support developing countries' efforts to pursue long-term, transformative development and accelerate sustainable, climate-resilient economic growth while slowing the growth of greenhouse

243

Startup Costs  

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

This chapter discusses startup costs for construction and environmental projects, and estimating guidance for startup costs.

1997-03-28T23:59:59.000Z

244

Chip-Scale Power Conversion for LED Lighting: Integrated Power Chip Converter for Solid-State Lighting  

SciTech Connect (OSTI)

ADEPT Project: Teledyne is developing cost-effective power drivers for energy-efficient LED lights that fit on a compact chip. These power drivers are important because they transmit power throughout the LED device. Traditional LED driver components waste energy and don't last as long as the LED itself. They are also large and bulky, so they must be assembled onto a circuit board separately which increases the overall manufacturing cost of the LED light. Teledyne is shrinking the size and improving the efficiency of its LED driver components by using thin layers of an iron magnetic alloy and new gallium nitride on silicon devices. Smaller, more efficient components will enable the drivers to be integrated on a single chip, reducing costs. The new semiconductors in Teledyne's drivers can also handle higher levels of power and last longer without sacrificing efficiency. Initial applications for Teledyne's LED power drivers include refrigerated grocery display cases and retail lighting.

None

2010-10-01T23:59:59.000Z

245

DOE Science Showcase - Light-emitting Diode (LED) Lighting Research | OSTI,  

Office of Scientific and Technical Information (OSTI)

Science Showcase - Light-emitting Diode (LED) Lighting Research Science Showcase - Light-emitting Diode (LED) Lighting Research Light-emitting diode (LED) lighting is a type of solid-state lighting that uses a semiconductor to convert electricity to light. LED lighting products are beginning to appear in a wide variety of home, business, and industrial products such as holiday lighting, replacement bulbs for incandescent lamps, street lighting, outdoor area lighting and indoor ambient lighting. Over the past decade, LED technology research and development supported by the U.S. Department of Energy (DOE) has yielded impressive improvements in the cost, color performance, light output, efficacy, reliability, lifetime, and manufacturability of LED products and this upward trend is expected to continue. Read about the latest DOE research, the technology behind LEDs,

246

Energy efficiency and the cost of GHG abatement: A comparison of bottom-up and hybrid models for the US  

E-Print Network [OSTI]

Energy efficiency and the cost of GHG abatement: A comparison of bottom-up and hybrid models of energy efficiency potential and green- house gas (GHG) abatement potential that have been highly, and that profitable energy efficiency improvements are the reason. For the US, McKinsey estimates that GHG emissions

247

High-resolution modeling of the western North American power system demonstrates low-cost and low-carbon futures  

E-Print Network [OSTI]

High-resolution modeling of the western North American power system demonstrates low-cost and low t Decarbonizing electricity production is central to reducing greenhouse gas emissions. Exploiting intermittent be replaced by solar, wind, gas, and/or nuclear generation, with intermittent renewable sources providing

Kammen, Daniel M.

248

EFFECT OF THE MODEL CORRELATING STRUCTURAL DAMAGE TO REPAIRING COST ON LIFE CYCLE ECONOMIC LOSS ESTIMATION OF BUILDING STRUCTURES IN HIGH SEISMIC ZONE  

E-Print Network [OSTI]

correlating the damage to repairing cost on the life cycle loss using a simple model. Buildings are modeledEFFECT OF THE MODEL CORRELATING STRUCTURAL DAMAGE TO REPAIRING COST ON LIFE CYCLE ECONOMIC LOSS ESTIMATION OF BUILDING STRUCTURES IN HIGH SEISMIC ZONE Noriyuki TAKAHASHI, Hitoshi SHIOHARA, and Shunsuke

Shiohara, Hitoshi

249

A Total Cost of Ownership Model for Low Temperature PEM Fuel Cells in Combined Heat and Power and Backup Power Applications  

Broader source: Energy.gov [DOE]

This report prepared by the Lawrence Berkeley National Laboratory describes a total cost of ownership model for emerging applications in stationary fuel cell systems.

250

COLORIMTRIE DES LED : INCERTITUDES ET INFLUENCE DU COURANT LECTRIQUE 17 Colorimtrie des LED  

E-Print Network [OSTI]

COLORIM�TRIE DES LED : INCERTITUDES ET INFLUENCE DU COURANT �LECTRIQUE 17 N. POUSSET Colorimétrie des LED : incertitudes et influence du courant électrique LEDs colorimetry: uncertainties proximale, et indices de rendu des couleurs) de sources d'éclairage à LED, du LNE-INM/Cnam, est décrit. Les

Paris-Sud XI, Université de

251

Contracting with reading costs and renegotiation costs  

E-Print Network [OSTI]

OF CALIFORNIA, SAN DIEGO Contracting with Reading Costs andrents, and the competitive contracting process. Journal ofReiche. Foundation of incomplete contracting in a model of

Brennan, James R.

2007-01-01T23:59:59.000Z

252

LED Lighting Basics | Department of Energy  

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

LED Lighting Basics LED Lighting Basics LED Lighting Basics August 16, 2013 - 10:07am Addthis Light-emitting diodes (LEDs) are light sources that differ from more traditional sources of light in that they are semiconductor devices that produce light when an electrical current is applied. Applying electrical current causes electrons to flow from the positive side of a diode to the negative side. Then, at the positive/negative junction of the diode, the electrons slow down to orbit at a lower energy level. The electrons emit the excess energy as photons of light. LEDs are often used as small indicator lights on various electronic devices. Because of their long life, durability, and efficiency, LEDs are becoming more common in residential, commercial, and outdoor area lighting

253

Using a total landed cost model to foster global logistics strategy in the electronics industry  

E-Print Network [OSTI]

Global operation strategies have been widely used in the last several decades as many companies and industries have taken advantage of lower production costs. However, in choosing a location, companies often only consider ...

Jearasatit, Apichart

2010-01-01T23:59:59.000Z

254

AVCEM: Advanced Vehicle Cost and Energy Use Model. Overview of AVCEM  

E-Print Network [OSTI]

liquefied natural-gas (LNG) ICEVs; • liquefied-petroleum-tanks, cryogenic tanks for LH2 and LNG, and hydrogen-hydrideThe cost of a CNG and an LNG station is calculated from a

Delucchi, Mark

2005-01-01T23:59:59.000Z

255

Modelling start-up costs of multiple technologies in electricity markets  

Science Journals Connector (OSTI)

This paper deals with the dispatch problem in providing electric power with minimal costs using different technologies. Initially, we describe this problem in terms of a linear program. This enables us to take...

Ludwig Kuntz; Felix Müsgens

2007-08-01T23:59:59.000Z

256

AVCEM: Advanced Vehicle Cost and Energy Use Model. Overview of AVCEM  

E-Print Network [OSTI]

stack); fuel-cell salvage value (fraction of initial coststack); total cost of vehicle electronics needed specifically for the fuel-cellcosts, expressed as a wage multiplier); specific weight of the fuel-cell stack (

Delucchi, Mark

2005-01-01T23:59:59.000Z

257

The development of a life cycle cost model for railroad tunnels  

E-Print Network [OSTI]

Today, Life Cycle Costing is one of the most popular ways of assessing a project's or an investment's worth to a company. This method of assessment is often applied to all stages of a investment's lifecycle, starting from ...

Angeles, Jon Virgil V

2011-01-01T23:59:59.000Z

258

Wind-to-Hydrogen Cost Modeling and Project Findings (Text Version...  

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

this type of plant. Scenario A is a cost-balanced approach, where the dollars of grid energy that you purchase equals the amount of wind that you sell back to the grid on a...

259

Dynamic Conic Finance: Pricing and Hedging in Market Models with Transaction Costs via Dynamic Coherent  

E-Print Network [OSTI]

[Rog94], Kabanov and Kramkov [KK94], Jacod and Shiryaev [JS98], Kabanov and Stricker [KS01b costs, no-arbitrage versions of the FTAP are proved in Jouini and Kallal [JK95], Kabanov and Stricker

Heller, Barbara

260

LED Exit Signs | Open Energy Information  

Open Energy Info (EERE)

Signs Jump to: navigation, search TODO: Add description List of LED Exit Signs Incentives Retrieved from "http:en.openei.orgwindex.php?titleLEDExitSigns&oldid380629"...

Note: This page contains sample records for the topic "led cost model" 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

Dimming LEDs: What You Need to Know  

Broader source: Energy.gov [DOE]

This December 10, 2012 webcast presented information on the challenges and opportunities facing users trying to dim LED light sources today, reviewing the major types of deployed dimming...

262

LED Replacements for Linear Fluorescent Lamps Webcast  

Broader source: Energy.gov [DOE]

In this June 20, 2011 webcast on LED products marketed as replacements for linear fluorescent lamps, Jason Tuenge of the Pacific Northwest National Laboratory (PNNL) discussed current Lighting...

263

LED Street Lighting Conversion Workshop Presentations  

Broader source: Energy.gov [DOE]

This page provides links to the presentations given at the National League of Cities Mobile Workshop, LED Street Lighting Conversion: Saving Your Community Money, While Improving Public Safety,...

264

Considerations When Comparing LED and Conventional Lighting  

Broader source: Energy.gov [DOE]

When comparing LED lighting performance to conventional lighting, buyers will want to consider energy efficiency, operating life and lumen depreciation, light output/distribution, color quality,...

265

Low Emission Development Strategies (LEDS): Technical, Institutional...  

Open Energy Info (EERE)

and Policy Lessons Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Low Emission Development Strategies (LEDS): Technical, Institutional and Policy Lessons Agency...

266

A Practical Primer to LED Technology  

Energy Savers [EERE]

- A Measurement Issue 2011 LED Transformations, LLC 17 What's Different Highest Energy Efficiency 0 20 40 60 80 100 120 140 160 White Sodium High Pressure Sodium Compact...

267

Sector-led improvement is currently seen as the way forward. Abolishing the  

E-Print Network [OSTI]

19 Sector-led improvement is currently seen as the way forward. Abolishing the Comprehensive Area choices locally. So sector led improvement is an idea whose time has finally come. Or has it? From its the particular features and consequences associated with a sector led model for improvement initiated in Ontario

Barthelat, Francois

268

130 LPW 1000 Lm Warm White LED for Illumination  

SciTech Connect (OSTI)

An illumination-grade warm-white LED, having correlated color temperature (CCT) between 2700 and 3500 K and capable of producing 1000 lm output at over 130 lm/W at room temperature, has been developed in this program. The high-power warm-white LED is an ideal source for use in indoor and outdoor lighting applications. Over the two year period, we have made the following accomplishments: • Developed a low-cost high-power white LED package and commercialized a series of products with CCT ranging from 2700 to 5700 K under the product name LUXEON M; • Demonstrated a record efficacy of 124.8 lm/W at a flux of 1023 lm, CCT of 3435 K and color rendering index (CRI) over 80 at room temperature in the productized package; • Demonstrated a record efficacy of 133.1 lm/W at a flux of 1015 lm, CCT of 3475 K and CRI over 80 at room temperature in an R&D package. The new high-power LED package is a die-on-ceramic surface mountable LED package. It has four 2 mm2 InGaN pump dice, flip-chip attached to a ceramic submount in a 2x2 array configuration. The submount design utilizes a design approach that combines a high-thermal- conductivity ceramic core for die attach and a low-cost and low-thermal-conductivity ceramic frame for mechanical support and as optical lens carrier. The LED package has a thermal resistance of less than 1.25 K/W. The white LED fabrication also adopts a new batch level (instead of die-by-die) phosphor deposition process with precision layer thickness and composition control, which provides not only tight color control, but also low cost. The efficacy performance goal was achieved through the progress in following key areas: (1) high-efficiency royal blue pump LED development through active region design and epitaxial growth quality improvement (funded by internal programs); (2) improvement in extraction efficiency from the LED package through improvement of InGaN-die-level and package-level optical extraction efficiency; and (3) improvement in phosphor system efficiency by improving the lumen equivalent (LE) and phosphor package efficiency (PPE) through improvement in phosphor-package interactions. The high-power warm-white LED product developed has been proven to have good reliability through extensive reliability tests. The new kilo-lumen package has been commercialized under the product name LUXEON M. As of the end of the program, the LUXEON M product has been released in the following CCT/CRI combinations: 3000K/70, 4000K/70, 5000K/70, 5700K/70, 2700K/80, 3000K/80 and 4000K/80. LM-80 tests for the products with CCTs of 4000 K and higher have reached 8500 hours, and per IESNA TM-21-11 have established an L70 lumen maintenance value of >51,000 hours at A drive current and up to 120 °C board temperature.

Soer, Wouter

2012-06-14T23:59:59.000Z

269

Getting Ready for LEDs: LED Lighting Video Series Explains the Basics |  

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

for LEDs: LED Lighting Video Series Explains the for LEDs: LED Lighting Video Series Explains the Basics Getting Ready for LEDs: LED Lighting Video Series Explains the Basics November 26, 2012 - 3:09pm Addthis Part 1 of the ElectricTV.net video series. Part 2 of the ElectricTV.net video series. Roland Risser Roland Risser Program Director, Building Technologies Office How can I participate? Learn more about the advantages and accessiblity of LED lighting from this series of videos. If you haven't been down the lighting aisle of your favorite home improvement store lately, you may be surprised at how many LED lighting products have arrived. Solid-state lighting (LEDs are one type) will soon have a strong impact on how buildings and homes are lit, in part because of its potential to reduce U.S. lighting energy usage by nearly one half.

270

An Evaluation of the Sustainability and Scalability of Business Models that Support Low-cost Assisted Home Energy Assessments Using A Cost Benefit Analysis.  

E-Print Network [OSTI]

??Energy costs and forecasted climate change have recently prompted organizations withinthe residential building sector and homeowners alike to increase their attention towards reducingresidential energy consumption.… (more)

Hinsey, Jason

2012-01-01T23:59:59.000Z

271

Predicting construction cost and schedule success using artificial neural networks ensemble and support vector machines classification models  

Science Journals Connector (OSTI)

It is commonly perceived that how well the planning is performed during the early stage will have significant impact on final project outcome. This paper outlines the development of artificial neural networks ensemble and support vector machines classification models to predict project cost and schedule success, using status of early planning as the model inputs. Through industry survey, early planning and project performance information from a total of 92 building projects is collected. The results show that early planning status can be effectively used to predict project success and the proposed artificial intelligence models produce satisfactory prediction results.

Yu-Ren Wang; Chung-Ying Yu; Hsun-Hsi Chan

2012-01-01T23:59:59.000Z

272

Cost model for optimum thicknesses of insulated walls considering indirect impacts and uncertainties  

Science Journals Connector (OSTI)

Abstract Nowadays, insulation is increasingly used for houses and buildings for its economic and environmental advantages. The performance of an insulated construction depends mainly on the thickness and the properties of the used insulation material. However, this performance is subjected to various uncertainties related for instance to the manufacturing process of the material and to the different workmanship errors that affect the thermal resistance of the insulated construction. In practice, these uncertainties are still rarely considered in energy analysis. Nevertheless, beyond a given level of uncertainties, the insulation system does not perform as expected which induces additional unexpected costs related to energy and pollution. This work aims first, at showing the impact of these uncertainties on the reliability of the insulated construction and second, at developing a new formulation of the global cost for the design of insulation system considering additional costs related to user and environment. The proposed cost formulation allows us to provide a better estimation of the payback period. Three configurations are considered with different insulation schemes in order to show the impact of uncertainties and indirect costs on the insulation performance.

A. Aïssani; A. Chateauneuf; J.-P. Fontaine; Ph. Audebert

2014-01-01T23:59:59.000Z

273

Solving the 'Green Gap' in LED Technology  

Broader source: Energy.gov [DOE]

One long-standing high-priority research area for DOE is to increase the efficiency of deep green LEDs. Although most products today use phosphor conversion (PC) to produce white light from a blue LED, having a good green source could lead to color-mixed white sources that would avoid the losses associated with the PC approach.

274

Financing Guidance for LED Street Lighting Programs  

Broader source: Energy.gov [DOE]

Financing an LED street lighting replacement program can present a hurdle for many system owners, even if the planned transition offers very favorable economics. Replacing the existing system requires a significant budget, particularly as the scope of the program increases. Cities such as Los Angeles and Seattle have invested many millions of dollars into their (very successful) LED street lighting replacement programs.

275

100 LPW 800 Lm Warm White LED  

SciTech Connect (OSTI)

An illumination grade warm white (WW) LED, having correlated color temperature (CCT) between 2800 K and 3500K and capable of producing 800 lm output at 100 lm/W, has been developed in this program. The high power WW LED is an ideal source for use as replacement for incandescent, and Halogen reflector and general purpose lamps of similar lumen value. Over the two year period, we have made following accomplishments: developed a high power warm white LED product and made over 50% improvements in light output and efficacy. The new high power WW LED product is a die on ceramic surface mountable LED package. It has four 1x1 mm{sup 2} InGaN pump dice flip chip attached to a ceramic submount in 2x2 array, covered by warm white phosphor ceramic platelets called Lumiramicâ?¢ and an overmolded silicone lens encapsulating the LED array. The performance goal was achieved through breakthroughs in following key areas: (1) High efficiency pump LED development through pump LED active region design and epi growth quality improvement (funded by internal programs). (2) Increase in injection efficiency (IE) represented by reduction in forward voltage (V{sub f}) through the improvement of the silver-based p-contact and a reduction in spreading resistance. The injection efficiency was increased from 80% at the start of the program to 96% at the end of the program at 700 mA/mm{sup 2}. (3) Improvement in thermal design as represented by reduction in thermal resistance from junction to case, through improvement of the die to submount connection in the thin film flip chip (TFFC) LED and choosing the submount material of high thermal conductivity. A thermal resistance of 1.72 K/W was demonstrated for the high power LED package. (4) Improvement in extraction efficiency from the LED package through improvement of InGaN die level and package level optical extraction efficiency improvement. (5) Improvement in phosphor system efficiency by improving the lumen equivalent (LE) and phosphor package efficiency (PPE) through improvement in phosphor-package interactions. Another achievement in the development of the phosphor integration technology is the demonstration of tight color control. The high power WW LED product developed has been proven to have good reliability. The manufacturing of the product will be done in Philips Lumiledsâ?? LUXEON Rebel production line which has produced billions of high power LEDs. The first high power WW LED product will be released to the market in 2011.

Decai Sun

2010-10-31T23:59:59.000Z

276

Slideshow: Flipping the Switch on LED Lighting for the National Mall |  

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

Slideshow: Flipping the Switch on LED Lighting for the National Slideshow: Flipping the Switch on LED Lighting for the National Mall Slideshow: Flipping the Switch on LED Lighting for the National Mall January 31, 2012 - 3:05pm Addthis 1 of 8 Facing East toward the Capitol Building, LED retrofitted lights line the interior paths of the mall while preserving the architectural integrity of the original fixtures. Image: Energy Department Image | Photo by Quentin Kruger (Contractor) | Public Domain Date taken: 2012-01-30 06:00 2 of 8 Energy Secretary Steven Chu discusses the 65% savings on electric bills and lowered maintenance costs the National Parks Service is experiencing by switching to energy efficient LED lights. "Using energy-efficient LED light bulbs is an important way Americans can save money by saving energy," said

277

Slideshow: Flipping the Switch on LED Lighting for the National Mall |  

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

Slideshow: Flipping the Switch on LED Lighting for the National Slideshow: Flipping the Switch on LED Lighting for the National Mall Slideshow: Flipping the Switch on LED Lighting for the National Mall January 31, 2012 - 3:05pm Addthis 1 of 8 Facing East toward the Capitol Building, LED retrofitted lights line the interior paths of the mall while preserving the architectural integrity of the original fixtures. Image: Energy Department Image | Photo by Quentin Kruger (Contractor) | Public Domain Date taken: 2012-01-30 06:00 2 of 8 Energy Secretary Steven Chu discusses the 65% savings on electric bills and lowered maintenance costs the National Parks Service is experiencing by switching to energy efficient LED lights. "Using energy-efficient LED light bulbs is an important way Americans can save money by saving energy," said

278

A simulation model for determining the productivity and costs associated with a mobile small-log sawmill  

E-Print Network [OSTI]

Committee) 7 ad of partment (Memb r) (Member) Member) December 1975 ABSTRACT A Simulation Model for Determining The Productivity and Costs Associated With a Mobile Small-Log Sawmill. (December 1975) Ken E. Rogers, B. S. F. , Stephen F. Austin... for their fine suggestions and critical comments. They are: Dr. Don F. Durso, Dr. Clifford Hickman, and Dr. August Smith. Lastly, I would like to express sincere appreciation to my wife, Kathy, for her continued patience, help, and encouragement through...

Rogers, Kenneth E

1975-01-01T23:59:59.000Z

279

Visual comparison of software cost estimation models by regression error characteristic analysis  

Science Journals Connector (OSTI)

The well-balanced management of a software project is a critical task accomplished at the early stages of the development process. Due to this requirement, a wide variety of prediction methods has been introduced in order to identify the best strategy ... Keywords: Estimation by analogy, Regression analysis, Regression error characteristic curves, Software cost estimation

Nikolaos Mittas; Lefteris Angelis

2010-04-01T23:59:59.000Z

280

Professional-led versus family-led support groups: Exploring the differences  

Science Journals Connector (OSTI)

Support groups often help families cope more effectively with relatives' mental illnesses. This study examines the differences between support groups led by professionals and those led by family members, focusing...

Susan A. Pickett Ph.D.; Tamar Heller Ph.D.…

1998-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

Revisiting of LED pumped bulk laser: first demonstration of Nd:YVO4 LED pumped laser  

Science Journals Connector (OSTI)

We describe here what is, to the best of our knowledge, the first LED pumped Nd:YVO4 laser. Near-IR LED arrays with a wavelength centered close to 850 nm were used to...

Barbet, Adrien; Balembois, François; Paul, Amandine; Blanchot, Jean-Philippe; Viotti, Anne-Lise; Sabater, Jacques; Druon, Frédéric; Georges, Patrick

2014-01-01T23:59:59.000Z

282

Linking transaction cost and social exchange theory to explain strategic alliance performance: a meta-analytic structural equation model  

Science Journals Connector (OSTI)

Drawing on transaction cost economics (TCE) and social exchange theory (SET), we develop and test an integrative model of strategic alliance performance using meta-analytic structural equation modelling. Results reveal that TCE's key constructs (e.g., relationship specific investments, opportunism, and environmental uncertainty) influence SET's key constructs (e.g., trust and commitment) which in turn increase different strategic alliance performance outcomes (e.g., satisfaction, goal fulfilment, profitability, and stability). Further, our results show that the different outcome variables are distinct constructs, which measure different facets of strategic alliance performance.

Rodrigo Isidor; Holger Steinmetz; Christian Schwens; Ruediger Kabst

2014-01-01T23:59:59.000Z

283

DOE Publishes CALiPER Report on Cost-Effectiveness of Linear...  

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

Report on Cost-Effectiveness of Linear (T8) LED Lamps DOE Publishes CALiPER Report on Cost-Effectiveness of Linear (T8) LED Lamps May 30, 2014 - 4:58pm Addthis The U.S. Department...

284

Modeling the Impacts of Electricity Tarrifs on PHEV Charging, Costs, and Emissions  

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

R&M Project 2A: R&M Project 2A: Evaluating the Effects of Managing Controllable Demand and Distributed Energy Resources Locally on System Performance and Costs Tim Mount, Eilyan Bitar and Ray Zimmerman Cornell University Alberto Lamadrid Lehigh University CERTS Review, Cornell, August 6 th - 7 th , 2013 An NSF I/UCRC PART I: Storage (Mount) PART II: Ramping* (Lamadrid) PART III: Robust Optimization* (Bitar) *(Note: This is a new part of the project that began on 3/30/13) 2 OUTLINE OF THE PRESENTATION An NSF I/UCRC PART I: Storage Wooyoung Jeon Hao Lu Jung Youn Mo 3 An NSF I/UCRC Context of the Research: An Integrated Multi-Scale Framework 4 SuperOPF  Costs PEV charger capacities  Commuting Patterns  Nodal Capabilities

285

SunLed Technologies | Open Energy Information  

Open Energy Info (EERE)

SunLed Technologies SunLed Technologies Jump to: navigation, search Name SunLed Technologies Place Hyderabad, Andhra Pradesh, India Zip 500 034 Sector Solar Product Hyderabad-based end-to-end energy efficient lighting solution provider and ESCO focused on LEDs and solar power. Coordinates 17.6726°, 77.5971° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":17.6726,"lon":77.5971,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

286

SemiLEDs | Open Energy Information  

Open Energy Info (EERE)

SemiLEDs SemiLEDs Jump to: navigation, search Name SemiLEDs Place Boise, Idaho Zip 83702 Product US-based LED chip maker with Asia manufacturing operations. Coordinates 43.60698°, -116.193409° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.60698,"lon":-116.193409,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

287

LEDS Events Calendar | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » LEDS Events Calendar Jump to: navigation, search Home | About | Inventory | Partnerships | Capacity Building | Webinars | Reports | Events | News | List Serve LEDS Events Calendar January 2014 Today January February March April May June July August September October November December 2014 Go to month Sunday Monday Tuesday Wednesday Thursday Friday Saturday 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 Add an Event Upcoming LEDS Events Retrieved from "http://en.openei.org/w/index.php?title=LEDS_Events_Calendar&oldid=384765" What links here Related changes

288

Zero net power LED lighting system design  

Science Journals Connector (OSTI)

Although the natural circuitry for LED is DC, LED lighting system design has been restricted to match the supply requirements of AC power from the grid. The DC converter circuit on each LED light fitting is not only energy inefficient, it is also the most unreliable element in the lighting system. In a pilot research project to investigate the feasibility of DC lighting systems, an innovative approach has been taken to re-design the lighting circuit in DC mode using existing AC wiring. The intelligent control system manages power supply between a bank of batteries, solar power or grid power back up. The batteries are charged when solar power is available. Further improvement of the circuit control using pulse width modulation operation modes has been demonstrated. Experiments showed that the new LED lighting system was able to deliver 65% total energy reduction.

John P.T. Mo; Ganesh Sen

2013-01-01T23:59:59.000Z

289

All inorganic colloidal quantum dot LEDs  

E-Print Network [OSTI]

This thesis presents the first colloidal quantum dot light emitting devices (QD-LEDs) with metal oxide charge transport layers. Colloidally synthesized quantum dots (QDs) have shown promise as the active material in ...

Wood, Vanessa Claire

2007-01-01T23:59:59.000Z

290

MC-CAM Research Topics Organic LEDs  

E-Print Network [OSTI]

MC-CAM Research Topics Organic LEDs Phosphors and materials for solid state lighting Battery materials with highly- controlled microstructures Next generation optical storage media Products based for advanced display technologies Mitsubishi Chemical Center for Advanced Materials MRL Building University

Bigelow, Stephen

291

LED Essentials- Technology, Applications, Advantages, Disadvantages  

Broader source: Energy.gov [DOE]

On October 11, 2007, Kevin Dowling, VP of Innovation for Philips Solid-State Lighting Solutions, presented a broad introduction to LED technology, and discussed the technology status, advantages...

292

Superieur lichtbereik dankzij dubbele LED module  

Science Journals Connector (OSTI)

GC Europe introduceert een nieuw concept voor lichtuitharding. De GC G-Light heeft een LED module met twee typen dioden. Met een...GC G-Light een hoge lichtopbrengst voor het uitharden van dental...

   

2005-08-01T23:59:59.000Z

293

DOE Hosts LED Industry Standards Workshop  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy hosted an LED Industry Standards Workshop on March 1, 2006 in Washington, D.C. The Workshop provided a forum to encourage greater cooperation and coordination among...

294

Final decisions that led to Y-12  

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

decisions that led to Y-12 As we have seen earlier in this series, Ernest O. Lawrence and his University of California Radiation Lab in Berkeley was the center for research using...

295

Sandia National Laboratories: warm white LED  

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

warm white LED Sandia Develops a Synthesis of Quantum Dots that Increases the Quantum Yield to 95.5% On May 23, 2013, in Energy, Energy Efficiency, Materials Science, News, News &...

296

LED Color Stability: 10 Important Questions  

Broader source: Energy.gov [DOE]

This April 15, 2014 webinar examined the causes of color shift, and took a look at existing metrics used to describe color shift/color stability in LED lighting. The lumen maintenance lifetime of...

297

Modelling Dynamic Constraints in Electricity Markets and the Costs of Uncertain Wind Output  

E-Print Network [OSTI]

shifts between periods. Finally, higher variable costs, incurred if power stations are operated below their optimal rating, are allocated to the locally lowest de- mand. For inflexible power stations like nuclear, combined cycle gas turbines or coal... the start of the station has to be decided several hours before delivering output. At the earlier time there is still uncertainty about the future demand, possible failures of power stations and predictions for wind-output. We represent the uncertainty...

Musgens, Felix; Neuhoff, Karsten

2006-03-14T23:59:59.000Z

298

Pittsburgh LED Street Lighting Research Project Performance Criteria  

Broader source: Energy.gov [DOE]

A Pittsburgh LED Street Lighting Research Project document on Technical and Aesthetic Performance for Business District LED Lighting.

299

Cost Containment  

Science Journals Connector (OSTI)

Cost containment in health care involves a wide ... , the growth rate of expenditure or certain costs of health care services. These measures include ... patient education, etc. The reasons for increased cost ...

2008-01-01T23:59:59.000Z

300

Cost Benefit Analysis Modeling Tool for Electric vs. ICE Airport Ground Support Equipment – Development and Results  

SciTech Connect (OSTI)

This report documents efforts to develop a computer tool for modeling the economic payback for comparative airport ground support equipment (GSE) that are propelled by either electric motors or gasoline and diesel engines. The types of GSE modeled are pushback tractors, baggage tractors, and belt loaders. The GSE modeling tool includes an emissions module that estimates the amount of tailpipe emissions saved by replacing internal combustion engine GSE with electric GSE. This report contains modeling assumptions, methodology, a user’s manual, and modeling results. The model was developed based on the operations of two airlines at four United States airports.

James Francfort; Kevin Morrow; Dimitri Hochard

2007-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

Commercial equipment cost database  

SciTech Connect (OSTI)

This report, prepared for DOE, Office of Codes and Standards, as part of the Commercial Equipment Standards Program at Pacific Northwest Laboratory, specifically addresses the equipment cost estimates used to evaluate the economic impacts of revised standards. A database including commercial equipment list prices and estimated contractor costs was developed, and through statistical modeling, estimated contractor costs are related to equipment parameters including performance. These models are then used to evaluate cost estimates developed by the ASHRAE 90.1 Standing Standards Project Committee, which is in the process of developing a revised ASHRAE 90.1 standard. The database will also be used to support further evaluation of the manufacturer and consumer impacts of standards. Cost estimates developed from the database will serve as inputs to economic modeling tools, which will be used to estimate these impacts. Preliminary results suggest that list pricing is a suitable measure from which to estimate contractor costs for commercial equipment. Models developed from these cost estimates accurately predict estimated costs. The models also confirm the expected relationships between equipment characteristics and cost. Cost models were developed for gas-fired and electric water heaters, gas-fired packaged boilers, and warm air furnaces for indoor installation. Because of industry concerns about the use of the data, information was not available for the other categories of EPAct-covered equipment. These concerns must be addressed to extend the analysis to all EPAct equipment categories.

Freeman, S.L.

1995-01-01T23:59:59.000Z

302

Proceedings of the International Electronics Packaging Education Conference (at the ECTC), May 30, 2006 Using Teardown Analysis as a Vehicle to Teach Electronic Systems Manufacturing Cost Modeling  

E-Print Network [OSTI]

, 2006 Using Teardown Analysis as a Vehicle to Teach Electronic Systems Manufacturing Cost Modeling Peter product teardowns and reverse engineering ideas has proven to be an effective vehicle for educating engineers involved in the design of electronic systems did not concern themselves with the cost

Sandborn, Peter

303

Spectral optimization of the color temperature tunable white light-emitting diode (LED) cluster consisting of direct-emission blue and red LEDs and a diphosphor conversion LED  

Science Journals Connector (OSTI)

The correlated color temperature (CCT) tunable white-light LED cluster, which consists of direct-emission blue and red LEDs as well as phosphor-conversion (PC) LEDs packaged by...

Zhong, Ping; He, Guoxing; Zhang, Minhao

2012-01-01T23:59:59.000Z

304

Bottom Up and Country Led: A New Framework for Climate Action | Open Energy  

Open Energy Info (EERE)

Bottom Up and Country Led: A New Framework for Climate Action Bottom Up and Country Led: A New Framework for Climate Action Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Bottom Up and Country Led: A New Framework for Climate Action Agency/Company /Organization: Booz and Company Sector: Energy, Land, Climate Topics: Low emission development planning Resource Type: Publications Website: www.booz.com/global/home/what_we_think/reports_and_white_papers/ic-dis Cost: Free Bottom Up and Country Led: A New Framework for Climate Action Screenshot References: Bottom Up and Country Led: A New Framework for Climate Action[1] "As delegates gather for the Climate Change Conference in Cancun in late 2010, they can benefit from familiarizing themselves with the set of tools available for mitigation and adaptation, as well as how these tools can fit

305

LEDS GP Second Annual Event: Learning and Leading on LEDS Workshop | Open  

Open Energy Info (EERE)

GP Second Annual Event: Learning and Leading on LEDS Workshop GP Second Annual Event: Learning and Leading on LEDS Workshop Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us Calendar.png LEDS GP Second Annual Event: Learning and Leading on LEDS Workshop: on 2013/02/27 (February 27 - March 1, 2013) The LEDS Global Partnership is convening its second annual global workshop to bring together leading practitioners from countries and international institutions to share lessons and strengthen cooperation on low emission development around the world. The workshop will convene peer learning and collaboration sessions on common topics of interest defined by the African Climate & Development Society, Asia LEDS

306

LEDS Tier I Activities | Open Energy Information  

Open Energy Info (EERE)

Tier I Activities Tier I Activities Jump to: navigation, search Name LEDS Tier I Activities Agency/Company /Organization United States Department of State, United States Department of Agriculture Partner Multiple Ministries of Agriculture Sector Climate, Land Focus Area Agriculture, Land Use Topics Co-benefits assessment, Low emission development planning, -LEDS Website http://transition.usaid.gov/ou Program Start 2011 Program End 2014 Country Costa Rica, Kenya Central America, Eastern Africa References Enhancing Capacity for Low Emission Development Strategies Program[1] Overview "Enhancing Capacity for Low Emission Development Strategies (EC-LEDS) is a U.S. Government initiative to support developing countries' efforts to pursue long-term, transformative development and accelerate sustainable,

307

Further Program Development for the Cost Minimizing Global Energy System Model GET-RC.  

E-Print Network [OSTI]

??The linear programming Global Energy Transition (GET) model covers the global energy system and is designed to meet exogenously given energy demand levels, subject to… (more)

Andersson, Magnus

2013-01-01T23:59:59.000Z

308

Evaluation of Air Pollution Models for Their Use in Emergency Response Tools in Built Environments: The ‘Michelstadt’ Case Study in COST ES1006 ACTION  

Science Journals Connector (OSTI)

The first results of a model validation test case, carried out in the research context of the COST ES1006 Action, are outlined and discussed. The validation exercise was established with an application-oriente...

Bernd Leitl; Silvia Trini Castelli…

2014-01-01T23:59:59.000Z

309

Greenhouse Gas Mitigation Options in ISEEM Global Energy Model: 2010-2050 Scenario Analysis for Least-Cost Carbon Reduction in Iron and Steel Sector  

E-Print Network [OSTI]

quantify production, energy and cost characteristics of ironCost Total O&M Cost Energy Cost Raw Material Cost AnnualCost Total O&M Cost Energy Cost (other than Coking Coal and

Karali, Nihan

2014-01-01T23:59:59.000Z

310

Off-grid energy services for the poor: Introducing LED lighting in the Millennium Villages Project in Malawi  

E-Print Network [OSTI]

Off-grid energy services for the poor: Introducing LED lighting in the Millennium Villages Project 2009 Keywords: Solar Lighting Development a b s t r a c t Lanterns that use light-emitting diodes (LEDs as a cost-competitive alternative to kerosene and other fuel-based lighting technologies, offering brighter

Modi, Vijay

311

Jade Sky Technologies Partners with CLTC on LED Replacement Lamp Upgrade Project UC Davis' California Lighting Technology Center will utilize Jade Sky Technologies' driver ICs to help spur  

E-Print Network [OSTI]

Jade Sky Technologies Partners with CLTC on LED Replacement Lamp Upgrade Project UC Davis of cost-effective, easy-to-use LED lighting solutions Milpitas, Calif. ­ October 15, 2013 ­ Jade Sky Technologies (JST), a clean-tech start-up manufacturer of driver ICs for LED lighting applications, announces

California at Davis, University of

312

A SuperReplication Theorem in Kabanov's Model of Transaction Costs  

E-Print Network [OSTI]

analogous results obtained by Kabanov [11], Kabanov and Last [12] and Kabanov and Stricker [15]. R. In this setting, a contingent claim is modelled by an R d ­valued random variable representing e.g. positions

Schachermayer, Walter

313

LED structure with enhanced mirror reflectivity  

DOE Patents [OSTI]

Embodiments of the present invention are generally related to LED chips having improved overall emission by reducing the light-absorbing effects of barrier layers adjacent mirror contacts. In one embodiment, a LED chip comprises one or more LEDs, with each LED having an active region, a first contact under the active region having a highly reflective mirror, and a barrier layer adjacent the mirror. The barrier layer is smaller than the mirror such that it does not extend beyond the periphery of the mirror. In another possible embodiment, an insulator is further provided, with the insulator adjacent the barrier layer and adjacent portions of the mirror not contacted by the active region or by the barrier layer. In yet another embodiment, a second contact is provided on the active region. In a further embodiment, the barrier layer is smaller than the mirror such that the periphery of the mirror is at least 40% free of the barrier layer, and the second contact is below the first contact and accessible from the bottom of the chip.

Bergmann, Michael; Donofrio, Matthew; Heikman, Sten; Schneider, Kevin S; Haberern, Kevin W; Edmond, John A

2014-04-01T23:59:59.000Z

314

Stochastic Dynamic Demand Inventory Models with Explicit Transportation Costs and Decisions  

E-Print Network [OSTI]

is the policy where several small loads will be dispatched as a single, combined load. From an inventory-modeling perspec- tive, the integrated inventory-transportation problems add dispatch quantities as decision variables to the stochastic dynamic inventory...): The vendor makes the inventory replen- ishment decisions on how much to order from the outside supplier. 2. Pure Outbound Transportation Models (PO): The collection depot makes the delivery schedules of order dispatches to the buyer(s). 3. Integrated...

Zhang, Liqing

2011-07-01T23:59:59.000Z

315

Hybrid principal component analysis and support vector machine model for predicting the cost performance of commercial building projects using pre-project planning variables  

Science Journals Connector (OSTI)

An accurate prediction of project performance in the pre-project planning stage – especially prediction of cost performance – is paramount to project stakeholders. The aim of this study is to propose and validate a hybrid predictive model for cost performance of commercial building projects using 64 variables related to the levels of definition in the pre-project planning stage. The proposed model integrates a support vector regression (SVR) model with principal component analysis (PCA). The proposed method was analyzed and validated based on 84 sets of data from an equal number of commercial building projects. Additionally, the result obtained using the proposed PCA–SVR model was compared with four other data-mining techniques. Experimental results revealed that the proposed PCA–SVR model is able to predict with high accuracy the cost performance of commercial building projects in the pre-project planning stage and is more efficient than the other four models.

Hyojoo Son; Changmin Kim; Changwan Kim

2012-01-01T23:59:59.000Z

316

Defect Engineering, Cell Processing, and Modeling for High-Performance, Low-Cost Crystalline Silicon Photovoltaics  

SciTech Connect (OSTI)

The objective of this project is to close the efficiency gap between industrial multicrystalline silicon (mc-Si) and monocrystalline silicon solar cells, while preserving the economic advantage of low-cost, high-volume substrates inherent to mc-Si. Over the course of this project, we made significant progress toward this goal, as evidenced by the evolution in solar-cell efficiencies. While most of the benefits of university projects are diffuse in nature, several unique contributions can be traced to this project, including the development of novel characterization methods, defect-simulation tools, and novel solar-cell processing approaches mitigate the effects of iron impurities ("Impurities to Efficiency" simulator) and dislocations. In collaboration with our industrial partners, this project contributed to the development of cell processing recipes, specialty materials, and equipment that increased cell efficiencies overall (not just multicrystalline silicon). Additionally, several students and postdocs who were either partially or fully engaged in this project (as evidenced by the publication record) are currently in the PV industry, with others to follow.

Buonassisi, Tonio

2013-02-26T23:59:59.000Z

317

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

SciTech Connect (OSTI)

Flashlights that use LED technology have quickly emerged as the dominant source of portable lighting in Kenya. While flashlights do not normally provide a substitute for kerosene and other highly inefficient fuels, they are an important early manifestation of LED lighting in the developing world that can serve as a platform - or deterrent - to the diffusion of the technology into the broader off-grid lighting market. The lead acid batteries embedded in flashlights also represent an important source of hazardous waste, and flashlight durability is thus an important determinant of the rate of waste disposal. Low-cost LED flashlights with prices from $1 to $4 are now widely available in shops and markets throughout Kenya. The increased penetration of LED technology in the flashlight market is significant, as over half of all Kenyan households report owning a flashlight (Kamfor, 2002). While this shift from conventional incandescent technology to modern LEDs may appear to be a promising development, end users that our research team interviewed expressed a number of complaints about the quality and performance of these new flashlights. This raises concerns about the interests of low-income flashlight users, and it may also indicate the onset of a broader market spoiling effect for off-grid lighting products based on LED technology (Mills and Jacobson, 2008; Lighting Africa, 2007). The quality of low-cost LED flashlights can contribute to market spoiling because these products appear to represent the first contact that most Kenyans have with LED technology. In this report, our team uses interviews with 46 end users of flashlights to collect information about their experiences, perceptions, and preferences. We focus especially on highlighting common complaints from respondents about the flashlights that they have used, as well as on noting the features that they indicated were important when evaluating the quality of a flashlight. In previous laboratory tests, researchers from our team found a wide range of quality and performance among battery powered LED lights (Granderson, et al. 2008).

Tracy, Jenny; Jacobson, Arne; Mills, Evan

2009-09-14T23:59:59.000Z

318

Sustainable LED Fluorescent Light Replacement Technology  

SciTech Connect (OSTI)

Ilumisys and the National Center for Manufacturing Sciences (NCMS) partnered on a three-year project awarded by the United States (U.S.) Department of Energy (DOE), to quantify the impacts of LED lamps, incandescent lamps and fluorescent benchmark lamps over a product lifecycle – i.e. to develop a sustainable design and manufacturing strategy that addresses product manufacturing, use, recycling and disposal scenarios for LED-based lighting. Based on the knowledge gained from extensive product tear-down studies of fluorescent and screw-in lighting products, lifecycle assessment tools, and accelerated lifecycle testing protocols, an interactive Sustainable LED Design Guide has been developed to aid architectural and lighting designers and engineers in making design decisions that consider three important environmental impacts (greenhouse gas emissions, energy use and mercury emission) across all phases of the life of an LED lighting product. Critical information developed for the lifecycle analysis and product feature comparisons is the useful life of the lighting product as well as its performance. The Design Guide is available at www.ncms.org, and was developed based on operational and durability testing of a variety of lighting products including power consumption, light output, and useful life of a lamp in order to allow a more realistic comparison of lamp designs. This report describes the main project tasks, results and innovative features of the lifecycle assessment (LCA)-based design tools, and the key considerations driving the sustainable design of LED lighting systems. The Design Guide incorporates the following three novel features for efficiently evaluating LED lighting features in value-chains: • Bill-of-Materials (BOM) Builder – Designers may import process data for each component and supply functional data for the product, including power, consumption, lumen output and expected useful life. • Environmental Impact Review – Designs are comparable across lifecycle phases, subsystems, and environmental impact category, and can be normalized to a userdefined functional unit. • Drill-down Review – These provide an indepth look at individual lamp designs with the ability to review across subsystem or lifecycle phase.

None

2011-06-30T23:59:59.000Z

319

Cost Estimator  

Broader source: Energy.gov [DOE]

A successful candidate in this position will serve as a senior cost and schedule estimator who is responsible for preparing life-cycle cost and schedule estimates and analyses associated with the...

320

Operating Costs  

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

This chapter is focused on capital costs for conventional construction and environmental restoration and waste management projects and examines operating cost estimates to verify that all elements of the project have been considered and properly estimated.

1997-03-28T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

Decision Support System (DSS) for Machine Selection: A Cost Minimization Model  

E-Print Network [OSTI]

.3) = SPs?%SPx s ?TTx? $SPWKS?HRS + UC??$UCu u ?PTxjk ? ?, ? + $MM 2?HRS ? PTxjk+SUxjk ? ?, ? SUxjk... to Appendix A for details). The first screen on the Microsoft Excel model presents the main menu with the options to go to the data sheet to enter or revise data, or to go to the calculations and results sheet to see results (refer to Figure 2.1). When...

Mendez Pinero, Mayra I.

2010-01-16T23:59:59.000Z

322

Utilizing an encroachment probability benefit-cost model to estimate accident reduction factors  

E-Print Network [OSTI]

. . ACCIDENT DATA MODELS. . . . . . . . . . . . . . ROADSIDE SAFETY ANALYSIS PROGRAM . . 6 9 11 13 CHAPTER III STUDY DESIGN . 20 HAZARDS AND COUNTERMEASURES . . TYPICAL SITE CONDITIONS . . FIXED OBJECT HAZARD . BRIDGE RAIL ENDS . LUMINAIRE SUPPORTS... Rail and Guardrail Extruder. 34 12 Plan View of Bridge Rail and Crash Cushion. 13 Luminaire Typical Section. 14 Typical Embankment Section (Base Condition). 15 Typical Embankment Section (Sideslope=3:1). . 16 Typical Embankment Section (Sideslope...

Hayes, Carolyn A

1997-01-01T23:59:59.000Z

323

Sporting Good Manufacturing Company: Optimal Manufacturing and Shipping Cost Through Linear Programming Models  

E-Print Network [OSTI]

Figure 15: Example Transshipment Model.............................................................................. 18 vi List of Principal Symbols and Nomenclature SGMC Sporting Good Manufacturing Company LP Linear Programming CEO Chief... Executive Officer COO Chief Operation Officer PKR Pakistani Rupees EMGT Engineering Management O.F. Objective Function A i No. of bats manufactured in factory i; where i = k, l BB i No. of Stumps manufactured in factory i; where i = k, l C i No...

Malik, Ejaz

2009-05-15T23:59:59.000Z

324

Modeling of GE Appliances: Cost Benefit Study of Smart Appliances in Wholesale Energy, Frequency Regulation, and Spinning Reserve Markets  

SciTech Connect (OSTI)

This report is the second in a series of three reports describing the potential of GE’s DR-enabled appliances to provide benefits to the utility grid. The first report described the modeling methodology used to represent the GE appliances in the GridLAB-D simulation environment and the estimated potential for peak demand reduction at various deployment levels. The third report will explore the technical capability of aggregated group actions to positively impact grid stability, including frequency and voltage regulation and spinning reserves, and the impacts on distribution feeder voltage regulation, including mitigation of fluctuations caused by high penetration of photovoltaic distributed generation. In this report, a series of analytical methods were presented to estimate the potential cost benefit of smart appliances while utilizing demand response. Previous work estimated the potential technical benefit (i.e., peak reduction) of smart appliances, while this report focuses on the monetary value of that participation. The effects on wholesale energy cost and possible additional revenue available by participating in frequency regulation and spinning reserve markets were explored.

Fuller, Jason C.; Parker, Graham B.

2012-12-31T23:59:59.000Z

325

Assessment of LED Technology in Ornamental Post-Top Luminaires (Host Site: Sacramento, CA)  

SciTech Connect (OSTI)

The DOE Municipal Solid-State Street Lighting Consortium has evaluated four different LED replacements for existing ornamental post-top street lights in Sacramento, California. The project team was composed of the City and its consultant, PNNL (representing the Consortium), and the Sacramento Municipal Utility District. Product selection was finalized in March 2011, yielding one complete luminaire replacement and three lamp-ballast retrofit kits. Computer simulations, field measurements, and laboratory testing were performed to compare the performance and cost-effectiveness of the LED products relative to the existing luminaire with 100 W high-pressure sodium lamp. After it was confirmed the LED products were not equivalent to HPS in terms of initial photopic illumination, the following parameters were scaled proportionally to enable equitable (albeit hypothetical) comparisons: light output, input wattage, and pricing. Four replacement scenarios were considered for each LED product, incorporating new IES guidance for mesopic multipliers and lumen maintenance extrapolation, but life cycle analysis indicated cost effectiveness was also unacceptable. Although LED efficacy and pricing continue to improve, this project serves as a timely and objective notice that LED technology may not be quite ready yet for such applications.

Tuenge, Jason R.

2011-12-01T23:59:59.000Z

326

Category:LEDS Toolkit | Open Energy Information  

Open Energy Info (EERE)

Toolkit Toolkit Jump to: navigation, search This page contains toolkits meant to support the creation and implementation of a Low Emission Development Strategy. Pages in category "LEDS Toolkit" The following 14 pages are in this category, out of 14 total. A Agriculture Work Space/Tools B Bioenergy Assessment Toolkit Bioenergy Toolkit E Energy System and Scenario Analysis Toolkit F Financing Initiatives Toolkit G Greenhouse Gas Inventory Development Toolkit I Impact Assessment Toolkit L Land Use Assessment Toolkit Land-use Policy and Program Design Toolkit Land-use Scenario Analysis Toolkit M Market Analysis Toolkit P Policy and Program Design Toolkit S Sustainable Land-use Impact Assessment Toolkit T Transportation Assessment Toolkit Retrieved from "http://en.openei.org/w/index.php?title=Category:LEDS_Toolkit&oldid=332209

327

White LED with High Package Extraction Efficiency  

Office of Scientific and Technical Information (OSTI)

WHITE LED WITH HIGH PACKAGE WHITE LED WITH HIGH PACKAGE EXTRACTION EFFICIENCY Final Report Report Period Start Date: 10/01/2006 Report Period End Date: 09/30/2008 Authors: Yi Zheng and Matthew Stough Report Submission Date: November 2008 DOE Award Number: DE-FC26-06NT42935 Project Manager: Ryan Egidi OSRAM SYLVANIA Product Inc Central Research and Service Laboratory 71 Cherry Hill Dr., Beverly, MA 01915 2 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor an agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus,

328

EECBG Success Story: Small Nebraska Town Welcomes LEDs and Energy...  

Energy Savers [EERE]

LEDs and Energy Savings November 9, 2010 - 5:21pm Addthis Tecumseh is installing 95 new LED light fixtures throughout the town. | File photo Tecumseh is installing 95 new LED...

329

#AskEnergySaver: LED Lights | Department of Energy  

Energy Savers [EERE]

LED Lights AskEnergySaver: LED Lights April 24, 2014 - 6:00pm Addthis LED lights are six to seven times more energy efficient than conventional incandescent lights, cut energy use...

330

LED Traffic Lights Get Buy American Stamp | Department of Energy  

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

LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp November 30, 2010 - 10:19am Addthis Red. Yellow. Green. What LED traffic signals don't say: Made...

331

To Bridge LEDs' Green Gap, Scientists Think Small  

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

To Bridge LEDs' Green Gap, Scientists Think Small To Bridge LEDs' Green Gap, Scientists Think Small Nanostructures Half a DNA Strand-Wide Show Promise for Efficient LEDs April 4,...

332

Robust Cost Colorings Takuro Fukunaga  

E-Print Network [OSTI]

Robust Cost Colorings Takuro Fukunaga Magn´us M. Halld´orsson Hiroshi Nagamochi Abstract We consider graph coloring problems where the cost of a coloring is the sum of the costs of the colors, and the cost of a color is a monotone concave function of the total weight of the class. This models resource

Halldórsson, Magnús M.

333

Strong Coupling in a Microcavity LED  

Science Journals Connector (OSTI)

Thin films of polyelectrolyte/J aggregate dye bilayers with high absorption coefficient (6 nm thick with ??1.0×106??cm-1) inserted in an optical microcavity enable the cavity quantum electrodynamic strong coupling limit to be reached at room temperature with a coupling strength (Rabi splitting) of 265±15??meV. By embedding these films in a resonant cavity organic LED structure, we demonstrate the first emissive electrically pumped exciton-polariton device.

Jonathan R. Tischler; M. Scott Bradley; Vladimir Bulovi?; Jung Hoon Song; Arto Nurmikko

2005-07-15T23:59:59.000Z

334

Flow and heat transfer in porous micro heat sink for thermal management of high power LEDs  

Science Journals Connector (OSTI)

A novel porous micro heat sink system is presented for thermal management of high power LEDs, which has high heat transport capability. The operational principle and heat transfer characteristics of porous micro heat sink are analyzed. Numerical model ... Keywords: Heat dissipation, High heat flux, High power LEDs, Porous media, Porous micro heat sink

Z. M. Wan; J. Liu; K. L. Su; X. H. Hu; S. S. M

2011-05-01T23:59:59.000Z

335

AC 2010-1659: IMPLEMENTING PEER LED TEAM LEARNING IN GATEWAY SCIENCE AND MATHEMATICS COURSES FOR ENGINEERING MAJORS  

E-Print Network [OSTI]

AC 2010-1659: IMPLEMENTING PEER LED TEAM LEARNING IN GATEWAY SCIENCE AND MATHEMATICS COURSES Led Team Learning in Gateway Science and Mathematics Courses for Engineering Majors Abstract The large chemistry course, we have implemented workshops based on the Peer Led Team Learning (PLTL) model

Knaust, Helmut

336

Cost Shifting  

Science Journals Connector (OSTI)

Abstract Cost shifting exists when a provider raises prices for one set of buyers because it has lowered prices for some other buyer. In theory, cost shifting can take place only if providers have unexploited market power. The empirical evidence on the extent of cost shifting is mixed. Taken as a whole, the evidence does not support the claims that cost shifting is a large and pervasive feature of the US health-care markets. At most, one can argue that perhaps one-fifth of Medicare payment reductions have been passed on to private payers. The majority of the rigorous studies, however, have found no evidence of cost shifting.

M.A. Morrisey

2014-01-01T23:59:59.000Z

337

Research Led by Sandia Reveals Leading-Edge Erosion Significantly...  

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

Research Led by Sandia Reveals Leading-Edge Erosion Significantly Reduces Wind Turbine Performance Research Led by Sandia Reveals Leading-Edge Erosion Significantly Reduces Wind...

338

DOE Lighting Program Update: LED Validation Activities | Department...  

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

DOE Lighting Program Update: LED Validation Activities DOE Lighting Program Update: LED Validation Activities Presentation covers the DOE Lighting Program update and is given at...

339

SciTech Connect: Demonstration Assessment of LED Roadway Lighting...  

Office of Scientific and Technical Information (OSTI)

Demonstration Assessment of LED Roadway Lighting: Philadelphia, PA Citation Details In-Document Search Title: Demonstration Assessment of LED Roadway Lighting: Philadelphia, PA...

340

LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting...  

Office of Environmental Management (EM)

LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting 2011 Solid-State Lighting Product Quality...

Note: This page contains sample records for the topic "led cost model" 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

To Bridge LEDs' Green Gap, Scientists Think Small  

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

emitting diodes (LEDs), especially in the "green gap," a portion of the spectrum where LED efficiency plunges, simulations at the U.S. Department of Energy's National Energy...

342

Energy Department Announces New Investments in University-Led...  

Energy Savers [EERE]

Investments in University-Led Nuclear Energy Innovation Energy Department Announces New Investments in University-Led Nuclear Energy Innovation September 27, 2012 - 11:07am Addthis...

343

Structural health and prognostics management for offshore wind turbines : case studies of rotor fault and blade damage with initial O&M cost modeling.  

SciTech Connect (OSTI)

Operations and maintenance costs for offshore wind plants are significantly higher than the current costs for land-based (onshore) wind plants. One way to reduce these costs would be to implement a structural health and prognostic management (SHPM) system as part of a condition based maintenance paradigm with smart load management and utilize a state-based cost model to assess the economics associated with use of the SHPM system. To facilitate the development of such a system a multi-scale modeling approach developed in prior work is used to identify how the underlying physics of the system are affected by the presence of damage and faults, and how these changes manifest themselves in the operational response of a full turbine. This methodology was used to investigate two case studies: (1) the effects of rotor imbalance due to pitch error (aerodynamic imbalance) and mass imbalance and (2) disbond of the shear web; both on a 5-MW offshore wind turbine in the present report. Based on simulations of damage in the turbine model, the operational measurements that demonstrated the highest sensitivity to the damage/faults were the blade tip accelerations and local pitching moments for both imbalance and shear web disbond. The initial cost model provided a great deal of insight into the estimated savings in operations and maintenance costs due to the implementation of an effective SHPM system. The integration of the health monitoring information and O&M cost versus damage/fault severity information provides the initial steps to identify processes to reduce operations and maintenance costs for an offshore wind farm while increasing turbine availability, revenue, and overall profit.

Myrent, Noah J. [Purdue Center for Systems Integrity, Lafayette, IN; Kusnick, Joshua F. [Purdue Center for Systems Integrity, Lafayette, IN; Barrett, Natalie C. [Purdue Center for Systems Integrity, Lafayette, IN; Adams, Douglas E. [Purdue Center for Systems Integrity, Lafayette, IN; Griffith, Daniel Todd

2013-04-01T23:59:59.000Z

344

A Total Cost of Ownership Model for Low Temperature PEM Fuel Cells in Combined Heat and Power and Backup Power Applications  

SciTech Connect (OSTI)

A total cost of ownership model is described for low temperature proton exchange membrane stationary fuel cell systems for combined heat and power (CHP) applications from 1-250kW and backup power applications from 1-50kW. System designs and functional specifications for these two applications were developed across the range of system power levels. Bottom-up cost estimates were made for balance of plant costs, and detailed direct cost estimates for key fuel cell stack components were derived using design-for-manufacturing-and-assembly techniques. The development of high throughput, automated processes achieving high yield are projected to reduce the cost for fuel cell stacks to the $300/kW level at an annual production volume of 100 MW. Several promising combinations of building types and geographical location in the U.S. were identified for installation of fuel cell CHP systems based on the LBNL modelling tool DER CAM. Life-cycle modelling and externality assessment were done for hotels and hospitals. Reduced electricity demand charges, heating credits and carbon credits can reduce the effective cost of electricity ($/kWhe) by 26-44percent in locations such as Minneapolis, where high carbon intensity electricity from the grid is displaces by a fuel cell system operating on reformate fuel. This project extends the scope of existing cost studies to include externalities and ancillary financial benefits and thus provides a more comprehensive picture of fuel cell system benefits, consistent with a policy and incentive environment that increasingly values these ancillary benefits. The project provides a critical, new modelling capacity and should aid a broad range of policy makers in assessing the integrated costs and benefits of fuel cell systems versus other distributed generation technologies.

University of California, Berkeley; Wei, Max; Lipman, Timothy; Mayyas, Ahmad; Chien, Joshua; Chan, Shuk Han; Gosselin, David; Breunig, Hanna; Stadler, Michael; McKone, Thomas; Beattie, Paul; Chong, Patricia; Colella, Whitney; James, Brian

2014-06-23T23:59:59.000Z

345

Dimmable AC LED Driver With Efficiency Improved Based on Switched LED Module  

Science Journals Connector (OSTI)

In this paper, one AC light-emitting diode (LED) driver with high power factor (PF) and low total harmonic distortion (THD) is adopted, which is added with the proposed...

Hwu, K I; Tu, W C; Fang, Y T

2014-01-01T23:59:59.000Z

346

Parking Savings Through LED Project for Iowa City | Department of Energy  

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

Parking Savings Through LED Project for Iowa City Parking Savings Through LED Project for Iowa City Parking Savings Through LED Project for Iowa City July 15, 2010 - 1:15pm Addthis Joshua DeLung What does this project do? Iowa City combines State Energy Program grant and rebate from utility. City to save $66,000 annually with energy efficient LED lights in parking garages. Project will reduce energy usage by 1.4 million kWh annually. Iowa City's $1.2 million LED project is expected to save the city about $5,000 each month from changing out old, metal halide light fixtures for LED lights. The cost of the project was partially covered by a $419,000 grant from the U.S. Department of Energy's State Energy Program and a $45,000 rebate from MidAmerican Energy, the local utility company. Brightening the future The LEDs being installed in Iowa City use less energy than normal light

347

User manual for GEOCITY: a computer model for cost analysis of geothermal district-heating-and-cooling systems. Volume II. Appendices  

SciTech Connect (OSTI)

The purpose of this model is to calculate the costs of residential space heating, space cooling, and sanitary water heating or process heating (cooling) using geothermal energy from a hydrothermal reservoir. The model can calculate geothermal heating and cooling costs for residential developments, a multi-district city, or a point demand such as an industrial factory or commercial building. Volume II contains all the appendices, including cost equations and models for the reservoir and fluid transmission system and the distribution system, descriptions of predefined residential district types for the distribution system, key equations for the cooling degree hour methodology, and a listing of the sample case output. Both volumes include the complete table of contents and lists of figures and tables. In addition, both volumes include the indices for the input parameters and subroutines defined in the user manual.

Huber, H.D.; Fassbender, L.L.; Bloomster, C.H.

1982-09-01T23:59:59.000Z

348

Text-Alternative Version: LED Essentials- Technology, Applications, Advantages, Disadvantages  

Broader source: Energy.gov [DOE]

Below is the text-alternative version of the LED Essentials - Technology, Applications, Advantages, Disadvantages webcast.

349

Flexible LEDs bring light to fingertips Oct 19, 2010  

E-Print Network [OSTI]

Flexible LEDs bring light to fingertips Oct 19, 2010 Glowing gloves Light-emitting diodes ­ or LEDs and colleagues have exploited a new printing technique for forming arrays of incredibly small red LEDs on flexible substrates. Like conventional LED manufacture, device fabrication begins by depositing a stack

Rogers, John A.

350

cost savings  

National Nuclear Security Administration (NNSA)

reduced the amount of time involved in the annual chemical inventory for a cost savings of 18,282. Other presentations covered SRNS' award-winning employee suggestion...

351

BPA's Costs  

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

BPAsCosts Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects & Initiatives Finance & Rates...

352

Cost Estimating, Analysis, and Standardization  

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

To establish policy and responsibilities for: (a) developing and reviewing project cost estimates; (b) preparing independent cost estimates and analysis; (c) standardizing cost estimating procedures; and (d) improving overall cost estimating and analytical techniques, cost data bases, cost and economic escalation models, and cost estimating systems. Cancels DOE O 5700.2B, dated 8-5-1983; DOE O 5700.8, dated 5-27-1981; and HQ 1130.1A, dated 12-30-1981. Canceled by DOE O 5700.2D, dated 6-12-1992

1984-11-02T23:59:59.000Z

353

Spectral optimization of color temperature tunable white LEDs with excellent color rendering and luminous efficacy  

Science Journals Connector (OSTI)

The optimization model of limited luminous efficacy (LLE) for correlated color temperature (CCT) tunable phosphor-coated white light-emitting diodes (pc-W LEDs) consisting of blue...

He, Guoxing; Tang, Ju

2014-01-01T23:59:59.000Z

354

Collective Experience: A Database-Fuelled, Inter-Disciplinary Team-Led Learning System  

E-Print Network [OSTI]

We describe the framework of a data-fuelled, interdisciplinary team-led learning system. The idea is to build models using patients from one's own institution whose features are similar to an index patient as regards an ...

Celi, Leo Anthony G.

355

Modelling of electricity cost risks and opportunities in the gold mining industry / Lodewyk Francois van der Zee.  

E-Print Network [OSTI]

??Carbon tax, increased reactive power charges, tariff increases and the Energy Conservation Scheme (ECS) are some of the worrying electricity cost risks faced by large… (more)

Van der Zee, Lodewyk Francois

2014-01-01T23:59:59.000Z

356

Category:LEDS Example | Open Energy Information  

Open Energy Info (EERE)

Example Example Jump to: navigation, search This page displays examples of country-scale low emission development strategies Pages in category "LEDS Example" The following 12 pages are in this category, out of 12 total. B Bangladesh Climate Change Strategy and Action Plan Brazil National Plan on Climate Change (PNMC) C China's National Climate Change Programme E ESMAP-South Africa-Low Carbon Growth Strategy G Guyana's Low Carbon Development Strategy I India National Action Plan on Climate Change Indonesia National Action Plan Addressing Climate Change J Japan-Action Plan for Achieving a Low-Carbon Society M Mexico's Special Program on Climate Change S Singapore National Climate Change Strategy T Thailand-National Energy Policy and Development Plan U United Kingdom Low Carbon Transition Plan

357

Light Emitting Diodes (LEDs) for General Illumiation  

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

LIGHT LIGHT EMITTING DIODES (LEDS) FOR GENERAL ILLUMINATION AN OIDA TECHNOLOGY ROADMAP An OIDA Report March 2001 Co-Sponsored by DOE/BTS and OIDA Compiled by Eric D. Jones Sandia National Laboratories OIDA Member Use Only OIDA OPTOELECTRONICS INDUSTRY DEVELOPMENT ASSOCIATION 1133 Connecticut Avenue, NW Suite 600 Washington, DC 20036 Ph: (202) 785-4426 Fax: (202) 785-4428 Web: http://www.OIDA.org © 2001 OIDA Optoelectronics Industry Development Association All data contained in this report is proprietary to OIDA and may not be distributed in either original or reproduced form to anyone outside the client's internal organization within five years of the report date without prior written permission of the Optoelectronics Industry Development Association. Published by: Optoelectronics Industry Development Association

358

DOE Lighting Program Update: LED Validation Activities  

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

DOE Lighting Program Update DOE Lighting Program Update LED Validation Activities Kelly Gordon Pacific Northwest National Laboratory Federal Utility Partnership Working Group April 15, 2010 Providence, RI www.ssl.energy.gov 2 | Solid-State Lighting Program Legislative Mandate The DOE is directed by U.S. government policy (EPACT 2005, Section 912) to: "...support research, development, demonstration, and commercial application activities related to advanced solid-state lighting technologies based on white light emitting diodes." DOE Lighting Program www.ssl.energy.gov 3 | Solid-State Lighting Program SSL Energy Saving Potential By 2030: * Potential to cut U.S. lighting electricity use by 25% * Cumulative energy savings: $120 billion * Annual energy savings equivalent to:

359

''When Cost Measures Contradict''  

SciTech Connect (OSTI)

When regulators put forward new economic or regulatory policies, there is a need to compare the costs and benefits of these new policies to existing policies and other alternatives to determine which policy is most cost-effective. For command and control policies, it is quite difficult to compute costs, but for more market-based policies, economists have had a great deal of success employing general equilibrium models to assess a policy's costs. Not all cost measures, however, arrive at the same ranking. Furthermore, cost measures can produce contradictory results for a specific policy. These problems make it difficult for a policy-maker to determine the best policy. For a cost measures to be of value, one would like to be confident of two things. First one wants to be sure whether the policy is a winner or loser. Second, one wants to be confident that a measure produces the correct policy ranking. That is, one wants to have confidence in a policy measure's ability to correctly rank policies from most beneficial to most harmful. This paper analyzes empirically these two properties of different costs measures as they pertain to assessing the costs of the carbon abatement policies, especially the Kyoto Protocol, under alternative assumptions about implementation.

Montgomery, W. D.; Smith, A. E.; Biggar, S. L.; Bernstein, P. M.

2003-05-09T23:59:59.000Z

360

Information Resources: Webinar: The L Prize-Winning LED A19  

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

Webinar: The L Prize-Winning LED A19 Replacement-What Commercial Building Owners/Operators Can Expect in 2012 Webinar: The L Prize-Winning LED A19 Replacement-What Commercial Building Owners/Operators Can Expect in 2012 This January 18, 2012 webinar presented an update on the status of LED A19 lamp options for commercial businesses, with an overview of DOE's L Prize competition and the rigorous lab, lifetime, and field testing that went into selection of the winning lamp. During the webinar, Kelly Gordon of Pacific Northwest National Laboratory presented current A19 LED options and provided details on where LEDs are most competitive and ready. Gordon also shared insights on the L Prize competition winner, the role of partners in market development, and preliminary plans for promotions and incentives. Todd Manegold, Director of LED Lamps Marketing at Philips Lighting, outlined best applications for the winning lamp in commercial settings, Philips' plans for commercial distribution, and a financial calculator showing expected cost/payback using actual examples from field tests.

Note: This page contains sample records for the topic "led cost model" 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

The cost efficiency of Kyoto flexible mechanisms: a top-down study with the GEM-E3 world model  

Science Journals Connector (OSTI)

Among Kyoto flexible mechanisms, emission trading (ET) shows more promise in cost efficiency but less flexibility in practice than Joint Implementation (JI) and the Clean Development Mechanism (CDM). The problem draws our attention to whether JI and ... Keywords: C68, Clean Development Mechanisms, Cost efficiency, Emission trading, Joint Implementation, Q43, Q48

Haoran Pan

2005-11-01T23:59:59.000Z

362

High Efficiency m-plane LEDs on Low Defect Density Bulk GaN Substrates  

SciTech Connect (OSTI)

Solid-state lighting is a key technology for reduction of energy consumption in the US and worldwide. In principle, by replacing standard incandescent bulbs and other light sources with sources based on light-emitting diodes (LEDs), ultimate energy efficiency can be achieved. The efficiency of LEDs has improved tremendously over the past two decades, however further progress is required for solid- state lighting to reach its full potential. The ability of an LED at converting electricity to light is quantified by its internal quantum efficiency (IQE). The material of choice for visible LEDs is Gallium Nitride (GaN), which is at the basis of blue-emitting LEDs. A key factor limiting the performance of GaN LEDs is the so-called efficiency droop, whereby the IQE of the LED decreases significantly at high current density. Despite decades of research, efficiency droop remains a major issue. Since high-current operation is necessary for practical lighting applications, reducing droop is a major challenge for the scientific community and the LED industry. Our approach to solving the droop issue is the use of newly available low-defect-density bulk GaN non-polar substrates. In contrast to the standard foreign substrates (sapphire, silicon carbide, silicon) used in the industry, we have employed native bulk GaN substrates with very low defect density, thus ensuring exquisite material quality and high IQE. Whereas all commercial LEDs are grown along the c-plane crystal direction of GaN, we have used m-plane non-polar substrates; these drastically modify the physical properties of the LED and enable a reduction of droop. With this approach, we have demonstrated very high IQE performance and low droop. Our results focused on violet and blue LEDs. For these, we have demonstrated very high peak IQEs and current droops of 6% and 10% respectively (up to a high current density of 200A.cm-2). All these results were obtained under electrical operation. These high IQE and low droop values are in line with the program’s milestones. They demonstrate that bulk non-polar GaN substrates represent a disruptive technology for LED performance. Application of this technology to real-world products is feasible, provided that the cost of GaN substrates is compatible with the market’s requirement.

David, Aurelien

2012-10-15T23:59:59.000Z

363

GaN-based micro-LED arrays on flexible substrates for optical cochlear implants  

Science Journals Connector (OSTI)

Currently available cochlear implants are based on electrical stimulation of the spiral ganglion neurons. Optical stimulation with arrays of micro-sized light-emitting diodes (µLEDs) promises to increase the number of distinguishable frequencies. Here, the development of a flexible GaN-based micro-LED array as an optical cochlear implant is reported for application in a mouse model. The fabrication of 15 µm thin and highly flexible devices is enabled by a laser-based layer transfer process of the GaN-LEDs from sapphire to a polyimide-on-silicon carrier wafer. The fabricated 50 ? 50 µm2 LEDs are contacted via conducting paths on both p- and n-sides of the LEDs. Up to three separate channels could be addressed. The probes, composed of a linear array of the said µLEDs bonded to the flexible polyimide substrate, are peeled off the carrier wafer and attached to flexible printed circuit boards. Probes with four µLEDs and a width of 230 µm are successfully implanted in the mouse cochlea both in vitro and in vivo. The LEDs emit 60 µW at 1 mA after peel-off, corresponding to a radiant emittance of 6 mW mm?2.

Christian Goßler; Colin Bierbrauer; Rüdiger Moser; Michael Kunzer; Katarzyna Holc; Wilfried Pletschen; Klaus Köhler; Joachim Wagner; Michael Schwaerzle; Patrick Ruther; Oliver Paul; Jakob Neef; Daniel Keppeler; Gerhard Hoch; Tobias Moser; Ulrich T Schwarz

2014-01-01T23:59:59.000Z

364

A Stochastic Unit-Commitment Model to Estimate the Costs of Changing Power Plant Operation under High Amounts of Intermittent Wind Power  

E-Print Network [OSTI]

) a market for district heating and process heat. Time series for the wind power production rely on timeA Stochastic Unit-Commitment Model to Estimate the Costs of Changing Power Plant Operation under High Amounts of Intermittent Wind Power Integration Meibom, P.1 , Brand, H.2 , Barth, R.2 and Weber, C

365

User manual for AQUASTOR: a computer model for cost analysis of aquifer thermal energy storage coupled with district heating or cooling systems. Volume I. Main text  

SciTech Connect (OSTI)

A computer model called AQUASTOR was developed for calculating the cost of district heating (cooling) using thermal energy supplied by an aquifer thermal energy storage (ATES) system. The AQUASTOR model can simulate ATES district heating systems using stored hot water or ATES district cooling systems using stored chilled water. AQUASTOR simulates the complete ATES district heating (cooling) system, which consists of two principal parts: the ATES supply system and the district heating (cooling) distribution system. The supply system submodel calculates the life-cycle cost of thermal energy supplied to the distribution system by simulating the technical design and cash flows for the exploration, development, and operation of the ATES supply system. The distribution system submodel calculates the life-cycle cost of heat (chill) delivered by the distribution system to the end-users by simulating the technical design and cash flows for the construction and operation of the distribution system. The model combines the technical characteristics of the supply system and the technical characteristics of the distribution system with financial and tax conditions for the entities operating the two systems into one techno-economic model. This provides the flexibility to individually or collectively evaluate the impact of different economic and technical parameters, assumptions, and uncertainties on the cost of providing district heating (cooling) with an ATES system. This volume contains the main text, including introduction, program description, input data instruction, a description of the output, and Appendix H, which contains the indices for supply input parameters, distribution input parameters, and AQUASTOR subroutines.

Huber, H.D.; Brown, D.R.; Reilly, R.W.

1982-04-01T23:59:59.000Z

366

Tools to support a model-based methodology for emission/immission and benefit/cost/risk analysis of wastewater systems that considers uncertainty  

Science Journals Connector (OSTI)

This paper presents a set of tools developed to support an innovative methodology to design and upgrade wastewater treatment systems in a probabilistic way. For the first step, data reconstruction, two different tools were developed, one for situations ... Keywords: Cost-benefit analysis, Grid computing, Modelling and simulation, Risk, Software tools, Wastewater treatment plant design

Lorenzo Benedetti; Davide Bixio; Filip Claeys; Peter A. Vanrolleghem

2008-08-01T23:59:59.000Z

367

User manual for GEOCITY: a computer model for cost analysis of geothermal district-heating-and-cooling systems. Volume I. Main text  

SciTech Connect (OSTI)

The purpose of this model is to calculate the costs of residential space heating, space cooling, and sanitary water heating or process heating (cooling) using geothermal energy from a hydrothermal reservoir. The model can calculate geothermal heating and cooling costs for residential developments, a multi-district city, or a point demand such as an industrial factory or commercial building. GEOCITY simulates the complete geothermal heating and cooling system, which consists of two principal parts: the reservoir and fluid transmission system and the distribution system. The reservoir and fluid transmission submodel calculates the life-cycle cost of thermal energy supplied to the distribution system by simulating the technical design and cash flows for the exploration, development, and operation of the reservoir and fluid transmission system. The distribution system submodel calculates the life-cycle cost of heat (chill) delivered by the distribution system to the end-users by simulating the technical design and cash flows for the construction and operation of the distribution system. Geothermal space heating is assumed to be provided by circulating hot water through radiators, convectors, fan-coil units, or other in-house heating systems. Geothermal process heating is provided by directly using the hot water or by circulating it through a process heat exchanger. Geothermal space or process cooling is simulated by circulating hot water through lithium bromide/water absorption chillers located at each building. Retrofit costs for both heating and cooling applications can be input by the user. The life-cycle cost of thermal energy from the reservoir and fluid transmission system to the distribution system and the life-cycle cost of heat (chill) to the end-users are calculated using discounted cash flow analysis.

Huber, H.D.; Fassbender, L.L.; Bloomster, C.H.

1982-09-01T23:59:59.000Z

368

Stage 1: Organizing the LEDS Process | Open Energy Information  

Open Energy Info (EERE)

: Organizing the LEDS Process : Organizing the LEDS Process Jump to: navigation, search Stage 1 LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and previous sustainable development efforts in the country 2.3. Assess public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other economic and resource data as needed for LEDS development

369

Identify roles and responsibilities for LEDS process | Open Energy  

Open Energy Info (EERE)

roles and responsibilities for LEDS process roles and responsibilities for LEDS process Jump to: navigation, search Stage 1 LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and previous sustainable development efforts in the country 2.3. Assess public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other economic and resource data as needed for LEDS development

370

Lighting Group: Sources and Ballasts: LED Reflector Lamp  

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

LED Reflector Lamp LED Reflector Lamp LED Reflector Lamp Objective LED reflector lamp The goal of this project is to develop a revolutionary new reflector lamp which offers many advantages over current incandescent reflector lamps, including: three times greater efficiency ten times the rated life greater optical and performance properties use of light emitting diodes (LEDs) to generate the light. Although LEDs have been commercially available since the late 1960’s, recent dramatic improvements in LED technology have led to white light devices with efficiencies that meet or exceed those of a standard incandescent lamp. This project will build upon these improvements to develop a new type of source for focusing light. Contact Information For more information on this project, please contact:

371

Text-Alternative Version: Challenges in LED Research and Development  

Broader source: Energy.gov [DOE]

Narrator: LEDs have made remarkable progress in the past decade and gained a strong foothold in the US marketplace. In 2012, LED lighting saved an estimated 71 trillion BTUs, equivalent to annual...

372

LED T8 Replacement Lamps | Department of Energy  

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

T8 Replacement Lamps LED T8 Replacement Lamps This documents provides an overview of LED T8 replacement lamps and helps define a reasonable minimum performance level for the...

373

Article Published on LED Lumen Maintenance and Light Loss Factors...  

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

Article Published on LED Lumen Maintenance and Light Loss Factors Article Published on LED Lumen Maintenance and Light Loss Factors January 20, 2014 - 12:00am Addthis An article...

374

DOE Publishes Report on Color Stability of LED Lighting Products...  

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

Color Stability of LED Lighting Products DOE Publishes Report on Color Stability of LED Lighting Products October 24, 2013 - 12:00am Addthis The U.S. Department of Energy (DOE) has...

375

Building highly efficient LEDs in the yellow-green spectrum  

SciTech Connect (OSTI)

Argonne and Purdue researchers are peering deep into the atomic structure and composition of LED lights in order to build highly efficient LEDs in the yellow-green spectrum.

None

2012-01-01T23:59:59.000Z

376

EM-Led Radiological Incident Response Program Receives Honors...  

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

EM-Led Radiological Incident Response Program Receives Honors EM-Led Radiological Incident Response Program Receives Honors May 29, 2014 - 12:00pm Addthis Jessie Welch performs...

377

Sunlight and LED Hybrid Illumination in Indoor Lighting Design  

Science Journals Connector (OSTI)

We design a light integrating collector that can collect the sunlight and LED light to illuminate the indoor spaces uniformly, and then use in simulating the sunlight/LED hybrid...

Sun, Wen-Shing; Tsuei, Chih-Hsuan

378

High-power LED Technology and Solid State Lighting  

Science Journals Connector (OSTI)

The rapid adoption of LEDs in general illumination is fueled by high-power phosphor-conversion and direct color blue and red LED technology. Over the last several years...

Goetz, Werner

379

Development of Advanced Manufacturing Methods for Warm White LEDs for General Lighting  

SciTech Connect (OSTI)

GE Lighting Solutions will develop precise and efficient manufacturing techniques for the “remote phosphor” platform of warm-white LED products. In volume, this will be demonstrated to drive significant materials, labor and capital productivity to achieve a maximum possible 53% reduction in overall cost. In addition, the typical total color variation for these white LEDs in production will be well within the ANSI bins and as low as a 4-step MacAdam ellipse centered on the black body curve. Achievement of both of these objectives will be demonstrated while meeting a performance target of > 75 lm/W for a warm-white LED and a reliability target of <30% lumen drop / <2-step MacAdam ellipse shift, estimated over 50,000 hrs.

Deshpande, Anirudha; Kolodin, Boris; Jacob, Cherian; Chowdhury, Ashfaqul; Kuenzler, Glenn; Sater, Karen; Aesram, Danny; Glaettli, Steven; Gallagher, Brian; Langer, Paul; Setlur, Anant; Beers, Bill

2012-03-31T23:59:59.000Z

380

Text-Alternative Version: LEDs for Interior Office Applications  

Broader source: Energy.gov [DOE]

Below is the text-alternative version of the LEDs for Interior Office Applications webcast, held March 18, 2010.

Note: This page contains sample records for the topic "led cost model" 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

Text-Alternative Version: LED Replacements for Linear Fluorescent Lamps  

Broader source: Energy.gov [DOE]

Below is the text-alternative version of the "LED Replacements for Linear Fluorescent Lamps" webcast, held June 20, 2011.

382

Text-Alternative Version: Evaluating LED Street Lighting Solutions  

Broader source: Energy.gov [DOE]

Below is the text-alternative version of the Evaluating LED Street Lighting Solutions webcast, held July 20, 2010.

383

Semiconductors 4-bit I2C LED dimmer  

E-Print Network [OSTI]

Philips Semiconductors PCA9533 4-bit I2C LED dimmer Product data sheet Supersedes data of 2003 Sep 19 2004 Oct 01 INTEGRATED CIRCUITS #12;Philips Semiconductors Product data sheet PCA95334-bit I2C LED dimmer 22004 Oct 01 FEATURES · 4 LED drivers (on, off, flashing at a programmable rate) · 2 selectable

Berns, Hans-Gerd

384

Enhancement-led institutional review University of St Andrews  

E-Print Network [OSTI]

Enhancement-led institutional review University of St Andrews MARCH 2011 #12;� The Quality on our website www.qaa.ac.uk Registered charity numbers 1062746 and SC037786 #12;Enhancement-led institutional review University of St Andrews Introduction 1 This is the report of an Enhancement-led

Brierley, Andrew

385

Breakthrough Makes LED Lights More Versatile Author: Andrea Thompson  

E-Print Network [OSTI]

Breakthrough Makes LED Lights More Versatile Author: Andrea Thompson Source: http://www.livescience.com/technology/ LEDs have started to blink on all over the place in recent years, from car taillights to roadside these limitations by combining the best of two worlds of LEDs to make ultrathin, ultrasmall and flexible light

Rogers, John A.

386

Summary report on the Enhancement-led institutional review  

E-Print Network [OSTI]

Summary report on the Enhancement-led institutional review University of St Andrews MARCH 2011 #12 education institutions. In Scotland, this process is known as Enhancement-led institutional review (ELIR). QAA operates equivalent but separate processes in England, Northern Ireland and Wales. The enhancement-led

Brierley, Andrew

387

Categorization of Software Errors that led to Security Breaches  

E-Print Network [OSTI]

Categorization of Software Errors that led to Security Breaches Wenliang Du Email: duw University, W. Lafayette, IN 47907, USA Abstract A set of errors known to have led to security breaches in computer systems was analyzed. The analysis led to a categorization of these errors. After examining

Du, Wenliang "Kevin"

388

Summary report on the Enhancement-led institutional review  

E-Print Network [OSTI]

Summary report on the Enhancement-led institutional review University of Glasgow APRIL 2010 #12 reviews of higher education institutions. In Scotland, this process is known as Enhancement-led and Wales. The enhancement-led approach ELIR is one element of the Quality Enhancement Framework which

Guo, Zaoyang

389

Thermal design and simulation of automotive headlamps using white LEDs  

Science Journals Connector (OSTI)

With an urgent need for energy conservation and pollution reduction, the trend of replacing traditional incandescent or fluorescent lamps with high-power LEDs is growing more and more popular. In this research, high power white LED chips are used in ... Keywords: Automitive headlamp, Heat pipe, High power LED, Junction temperature

Jing Wang; Yi-Xi Cai; Xin-Jie Zhao; Chun Zhang

2014-02-01T23:59:59.000Z

390

DAMOP BICYCLE EXCURSION Wisconsin led in the Rail to Trail conversion starting in the 1960s. The state now enjoys ~1000 miles of State Park  

E-Print Network [OSTI]

DAMOP BICYCLE EXCURSION Wisconsin led in the Rail to Trail conversion are invited on a bicycle excursion organized by Thad Walker and Jim Lawler. Directions & Costs: The excursion will depart from Machinery Row Bicycles (0.4 mi

Walker, Thad G.

391

Lifeworld-led healthcare is more than patient-led care: an existential view of well-being  

Science Journals Connector (OSTI)

In this paper we offer an appreciation and critique of patient-led care as expressed in current policy and practice. We argue that current patient-led approaches hinder a focus on a deeper understanding of what p...

Karin Dahlberg; Les Todres; Kathleen Galvin

2009-08-01T23:59:59.000Z

392

Solid-State Lighting: Text-Alternative Version: LED Essentials -  

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

Essentials - Technology, Applications, Advantages, Disadvantages to someone Essentials - Technology, Applications, Advantages, Disadvantages to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Google Bookmark Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Delicious Rank Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Digg

393

A Portable, Low-Cost, LED Fluorimeter for Middle School, High School, and Undergraduate Chemistry Labs  

Science Journals Connector (OSTI)

With a plethora of sensitive and selective techniques, modern analytical chemistry has significantly contributed to the public awareness of chemical problems and issues relating to quality-control systems in industrial production, in the pharmaceutical area, in the food industry, and in the environment. ... Appropriate precautions need to be taken when constructing the apparatus, especially with hot soldering irons and live circuits. ... anal., it will be necessary to use an array-type detector and to be aware that the time-integrated spectrum may contain contributions from numerous levels. ...

Benjamin T. Wigton; Balwant S. Chohan; Cole McDonald; Matt Johnson; Doug Schunk; Rod Kreuter; Dan Sykes

2011-05-31T23:59:59.000Z

394

New and Underutilized Technology: High Bay LED Lighting | Department of  

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

High Bay LED Lighting High Bay LED Lighting New and Underutilized Technology: High Bay LED Lighting October 7, 2013 - 8:55am Addthis The following information outlines key deployment considerations for high bay LED lighting within the Federal sector. Benefits LED light sources offer several potential benefits compared to metal halide or fluorescent lighting, including reduced energy consumption due to the ability to provide a more precise light distribution; longer operating life and lower maintenance requirements; less heat introduced into the space; and greater controllability for dimming and on/off control. Relevant to the cold storage application, LED performance improves in colder temperatures. Application High bay LED lighting is applicable for facilities containing high bay

395

LED Traffic Lights Get Buy American Stamp | Department of Energy  

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

LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp November 29, 2010 - 10:00am Addthis LED traffic lights are assembled at Dialight’s factory in Roxboro, N.C. The company has expanded production at the facility, adding more than 100 jobs over the past two years. | Photo Courtesy of Dialight LED traffic lights are assembled at Dialight's factory in Roxboro, N.C. The company has expanded production at the facility, adding more than 100 jobs over the past two years. | Photo Courtesy of Dialight Lindsay Gsell LED traffic lights are assembled at Dialight's factory in Roxboro, N.C. The company has expanded production at the facility, adding more than 100 jobs over the past two years. Red. Yellow. Green. What LED traffic signals don't say: Made in USA.

396

Which LED Lighting Products Would You Consider Trying? | Department of  

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

Which LED Lighting Products Would You Consider Trying? Which LED Lighting Products Would You Consider Trying? Which LED Lighting Products Would You Consider Trying? August 5, 2010 - 7:30am Addthis On Monday, Chris discussed his upcoming project to replace the lighting in his kitchen and family room. Chris is considering LED (light-emitting diode) lighting, especially for his kitchen, where they can be installed under the cabinets. LEDs can also be used for other applications, including task lighting, recessed downlights, and holiday lighting. Which LED lighting products would you consider trying? Or, if you're already using LEDs, what do you think of them? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. Please comment with your answers, and also feel free to respond to other comments.

397

Solid-State Lighting: DOE Hosts LED Industry Standards Workshop  

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

Information Information Resources Printable Version Share this resource Send a link to Solid-State Lighting: DOE Hosts LED Industry Standards Workshop to someone by E-mail Share Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on Facebook Tweet about Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on Twitter Bookmark Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on Google Bookmark Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on Delicious Rank Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on Digg Find More places to share Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on AddThis.com... Conferences & Meetings Past Conferences Presentations Publications Webcasts Videos Tools

398

Stage 1: Organizing the LEDS Process | Open Energy Information  

Open Energy Info (EERE)

Stage 1: Organizing the LEDS Process Stage 1: Organizing the LEDS Process (Redirected from Low Emission Development Strategies Methodology) Jump to: navigation, search Stage 1 LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and previous sustainable development efforts in the country 2.3. Assess public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other

399

Cree Sets New Benchmarks for LED Efficacy and Brightness  

Broader source: Energy.gov [DOE]

Cree has successfully created a cool white LED prototype that delivers 107 lm/W at 350mA. This achievement builds on the Cree EZBright® LED chip platform, developed in part with prior funding support from DOE. Cree made the prototype LED under their DOE project focused on developing LED chips incorporating photonic crystal elements for improved light extraction and novel package technology for higher down-conversion efficiency compared to conventional LEDs. Based on a 1 millimeter-square chip, the new prototype LED produces white light with a CCT of 5500K and a CRI of 73. Integration of four of these prototype LEDs can produce luminous flux of more than 450 lumens.

400

Novel green illumination energy for LED with ocean battery materials  

Science Journals Connector (OSTI)

This paper launches novel materials of LED with ocean battery. Ocean battery employs sea water existing by the nature as energy materials to drive LED lamp lighting. The analysing methods are thermal-, electric- and illumination-performance experiments to discuss the novel green illumination techniques. Ocean battery and LED are all DC components, there is no energy loss of current converter between them, and the ocean battery has more electricity in LED illumination. Vapour chamber (VC) and aluminium (AL) materials are assigned to be the LED PCBs. Results show that the effective thermal conductivity of the VCPCB is many times higher than that of the ALPCB, proving that it can effectively reduce the temperature of the LED and obtain more uniform luminance. And the output voltage and LED lighting start unstable resulting from the air bubble of ocean battery slight vibration.

Jung-Chang Wang

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

LEDSGP/about/Asia LEDS Partnership | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » LEDSGP/about/Asia LEDS Partnership < LEDSGP‎ | about(Redirected from Asia LEDS Partnership) Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us About How We Work > Regional Platforms > Working Groups LEDS GP Members Steering Committee Guiding Structure Contacts Asia LEDS Partnership (ALP) A LEDS GP Regional Network ALT Steering Committee ALP Steering Committee The Asia LEDS Partnership Steering Committee met on March, 2013 in Pattaya, Thailand following the LEDS Global Partnership second annual workshop to

402

The development of a system to optimise production costs around complex electricity tariffs / R. Maneschijn.  

E-Print Network [OSTI]

??Rising South African electricity prices and reduced sales following the 2008 economic recession have led cement manufacturers to seek ways to reduce production costs. Prior… (more)

Maneschijn, Raynard

2012-01-01T23:59:59.000Z

403

Electricity costs  

Science Journals Connector (OSTI)

... index is used to correct for inflation. The short answer is given by the Central Electricity Generating Board's (CEGB's) 1980-81 report, paragraph 168. "The ... Generating Board's (CEGB's) 1980-81 report, paragraph 168. "The cost per kWh of fuel. . . rose by 18.6 per cent (between 1979 ...

J.W. JEFFERY

1982-03-18T23:59:59.000Z

404

cost | OpenEI  

Open Energy Info (EERE)

cost cost Dataset Summary Description The following data-set is for a benchmark residential home for all TMY3 locations across all utilities in the US. The data is indexed by utility service provider which is described by its "unique" EIA ID ( Source National Renewable Energy Laboratory Date Released April 05th, 2012 (2 years ago) Date Updated April 06th, 2012 (2 years ago) Keywords AC apartment CFL coffeemaker Computer cooling cost demand Dishwasher Dryer Furnace gas HVAC Incandescent Laptop load Microwave model NREL Residential television tmy3 URDB Data text/csv icon Residential Cost Data for Common Household Items (csv, 14.5 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Annually Time Period License License Open Data Commons Public Domain Dedication and Licence (PDDL)

405

Deputy Secretary Poneman Announces Team led by Oak Ridge National Lab  

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

Deputy Secretary Poneman Announces Team led by Oak Ridge National Deputy Secretary Poneman Announces Team led by Oak Ridge National Lab Selected to Receive up to $122 Million for Nuclear Energy Innovation Hub Deputy Secretary Poneman Announces Team led by Oak Ridge National Lab Selected to Receive up to $122 Million for Nuclear Energy Innovation Hub May 28, 2010 - 12:05pm Addthis WASHINGTON, D.C. - As part of a broad effort to spur innovation and achieve clean energy breakthroughs, U.S. Deputy Secretary of Energy Daniel Poneman today announced the selection of a team led by Oak Ridge National Laboratory (ORNL) for an award of up to $122 million over five years to establish and operate a new Nuclear Energy Modeling and Simulation Energy Innovation Hub. The Hub, which includes partners from universities, industry and other national labs, will use advanced capabilities of the

406

Deputy Secretary Poneman Announces Team led by Oak Ridge National Lab  

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

Announces Team led by Oak Ridge National Announces Team led by Oak Ridge National Lab Selected to Receive up to $122 Million for Nuclear Energy Innovation Hub Deputy Secretary Poneman Announces Team led by Oak Ridge National Lab Selected to Receive up to $122 Million for Nuclear Energy Innovation Hub May 28, 2010 - 12:00am Addthis WASHINGTON, D.C. - As part of a broad effort to spur innovation and achieve clean energy breakthroughs, U.S. Deputy Secretary of Energy Daniel Poneman today announced the selection of a team led by Oak Ridge National Laboratory (ORNL) for an award of up to $122 million over five years to establish and operate a new Nuclear Energy Modeling and Simulation Energy Innovation Hub. The Hub, which includes partners from universities, industry and other national labs, will use advanced capabilities of the

407

Electric power substation capital costs  

SciTech Connect (OSTI)

The displacement or deferral of substation equipment is a key benefit associated with several technologies that are being developed with the support of the US Department of Energy`s Office of Utility Technologies. This could occur, for example, as a result of installing a distributed generating resource within an electricity distribution system. The objective of this study was to develop a model for preparing preliminary estimates of substation capital costs based on rudimentary conceptual design information. The model is intended to be used by energy systems analysts who need ``ballpark`` substation cost estimates to help establish the value of advanced utility technologies that result in the deferral or displacement of substation equipment. This cost-estimating model requires only minimal inputs. More detailed cost-estimating approaches are recommended when more detailed design information is available. The model was developed by collecting and evaluating approximately 20 sets of substation design and cost data from about 10 US sources, including federal power marketing agencies and private and public electric utilities. The model is principally based on data provided by one of these sources. Estimates prepared with the model were compared with estimated and actual costs for the data sets received from the other utilities. In general, good agreement (for conceptual level estimating) was found between estimates prepared with the cost-estimating model and those prepared by the individual utilities. Thus, the model was judged to be adequate for making preliminary estimates of typical substation costs for US utilities.

Dagle, J.E.; Brown, D.R.

1997-12-01T23:59:59.000Z

408

OR Forum---Modeling the Impacts of Electricity Tariffs on Plug-In Hybrid Electric Vehicle Charging, Costs, and Emissions  

Science Journals Connector (OSTI)

Plug-in hybrid electric vehicles (PHEVs) have been touted as a transportation technology with lower fuel costs and emissions impacts than other vehicle types. Most analyses of PHEVs assume that the power system operator can either directly or indirectly ... Keywords: environment, plug-in hybrid electric vehicles, pricing

Ramteen Sioshansi

2012-05-01T23:59:59.000Z

409

An Evolutionary Path for Concentrating Thermal Solar Power Technologies: A New Approach for Modeling CSP Power Costs and Potential  

SciTech Connect (OSTI)

Concentrating thermal solar power (CSP) technology is a potentially competitive power generation option, particularly in arid regions where direct sunlight is abundant. We examine the potential role of CSP power plants and their contribution to carbon emissions reduction. The answers to these questions depend on the cost of electricity generated by CSP plants. Although a few studies have projected future CSP costs based on assumptions for technology advancement and the effect of economies of scale and learning curves, few studies have considered the combined effects of intermittency, solar irradiance changes by season, and diurnal and seasonal system load changes. Because the generation of a solar plant varies over a day and by season, the interactions between CSP generators and other generators in the electric system can play an important role in determining costs. In effect, CSP electricity generation cost will depend on the CSP market penetration. This paper examines this relationship and explores possible evolutionary paths for CSP technologies with and without thermal storage.

Zhang, Yabei; Smith, Steven J.

2008-05-08T23:59:59.000Z

410

Technology Cost and Performance Toolkit | Open Energy Information  

Open Energy Info (EERE)

Technology Cost and Performance Toolkit Technology Cost and Performance Toolkit Jump to: navigation, search Stage 3 LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and previous sustainable development efforts in the country 2.3. Assess public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other economic and resource data as needed for LEDS development

411

Types of Costs Types of Cost Estimates  

E-Print Network [OSTI]

first cost or capital investment): ­ Expenditures made to acquire or develop capital assets ­ Three main· Types of Costs · Types of Cost Estimates · Methods to estimate capital costs MIN E 408: Mining-site management or corporate level expenditure · Direct vs. Indirect Costs ­ Direct (or variable) costs apply

Boisvert, Jeff

412

Types of Costs Types of Cost Estimates  

E-Print Network [OSTI]

-Revenue Relationships · Capital Costs (or first cost or capital investment): ­ Expenditures made to acquire or develop05-1 · Types of Costs · Types of Cost Estimates · Methods to estimate capital costs MIN E 408 ­ off-site management or corporate level expenditure · Direct vs. Indirect Costs ­ Direct (or variable

Boisvert, Jeff

413

A practical means for calibrating an LED-based photometric stereo system  

Science Journals Connector (OSTI)

Abstract Conventional Photometric Stereo (PS) techniques are usually based on the assumption that the light sources are assumed sufficiently far from the object that all incoming light can be modeled using parallel rays. Meanwhile, for near-field lighting conditions the light sources are close to the object so the parallel ray model cannot be used. To determine the surface normal for each point on the object more accurately, the incoming light direction should be calculated individually for each point. In this work, based on a simple PS setup consisting of LED lamps and one camera, we present a practical method for calibrating lighting directions. First, an optical model of an LED was introduced in the calibration procedure to represent the surface irradiance and image irradiance more accurately. A reference sphere was used for the calibration so that the LED optical axis could be estimated by extracting the specular points from the reference sphere. By introducing the LED emitting model, distance between the LED and the specular point along the optical axis can be calculated. Thus, the incident lighting directions for various image points can be estimated individually. To improve the estimation robustness, a non-linear fitting approach was also applied. Experiments were conducted using objects and the results are compared with traditional methods to demonstrate its feasibility and improvement.

Limin Xie; Zhan Song; Guohua Jiao; Xinhan Huang; Kui Jia

2015-01-01T23:59:59.000Z

414

LEDs Ready for Takeoff at Louisiana Airport | Department of Energy  

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

LEDs Ready for Takeoff at Louisiana Airport LEDs Ready for Takeoff at Louisiana Airport LEDs Ready for Takeoff at Louisiana Airport July 14, 2010 - 3:34pm Addthis Hammond, La., airport is replacing the existing incandescent taxiway lights (pictured) with LEDs. | Photo courtesy of Hammond Northshore Regional Airport Hammond, La., airport is replacing the existing incandescent taxiway lights (pictured) with LEDs. | Photo courtesy of Hammond Northshore Regional Airport Stephen Graff Former Writer & editor for Energy Empowers, EERE What are the key facts? Upgrades for safety, energy at Hammond airport possible through Recovery Act Taxiway lights to be replaced with LEDs Airport could save up to $15,000 annually on electric bills Energy efficiency is taking off at the airport in Hammond, La., about 70

415

LEDs Ready for Takeoff at Louisiana Airport | Department of Energy  

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

LEDs Ready for Takeoff at Louisiana Airport LEDs Ready for Takeoff at Louisiana Airport LEDs Ready for Takeoff at Louisiana Airport July 14, 2010 - 3:34pm Addthis Hammond, La., airport is replacing the existing incandescent taxiway lights (pictured) with LEDs. | Photo courtesy of Hammond Northshore Regional Airport Hammond, La., airport is replacing the existing incandescent taxiway lights (pictured) with LEDs. | Photo courtesy of Hammond Northshore Regional Airport Stephen Graff Former Writer & editor for Energy Empowers, EERE What are the key facts? Upgrades for safety, energy at Hammond airport possible through Recovery Act Taxiway lights to be replaced with LEDs Airport could save up to $15,000 annually on electric bills Energy efficiency is taking off at the airport in Hammond, La., about 70

416

IADB/UNDP LEDS Community of Practice | Open Energy Information  

Open Energy Info (EERE)

IADB/UNDP LEDS Community of Practice IADB/UNDP LEDS Community of Practice Jump to: navigation, search Name IADB/UNDP LEDS Community of Practice Agency/Company /Organization Inter-American Development Bank, United Nations Development Programme (UNDP) Sector Climate, Energy Focus Area People and Policy Topics Low emission development planning, -LEDS, Policies/deployment programs Website http://finanzascarbono.org/com References LEDS Community of Practice-Carbon Finance Platform[1] "The objective of this Community of Practice is to provide the LAC region with information and facilitate technical discussions about the process of preparing national Low Emission Development Strategies. The workplan for 2012 includes the organization of discussion forums, seminars and webinars on LEDS preparation.

417

Rebalancing an Investment Portfolio in the Presence of Convex Transaction Costs and Market Impact Costs  

E-Print Network [OSTI]

Rebalancing an Investment Portfolio in the Presence of Convex Transaction Costs and Market Impact transaction costs. The loss to a portfolio from market impact costs is typically modeled with a convex, transaction costs, market impact costs, rebalanc- ing, conic optimization, convex optimization. 1 #12

Mitchell, John E.

418

List of LED Exit Signs Incentives | Open Energy Information  

Open Energy Info (EERE)

LED Exit Signs Incentives LED Exit Signs Incentives Jump to: navigation, search The following contains the list of 72 LED Exit Signs Incentives. CSV (rows 1 - 72) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP SWEPCO - Commercial and Industrial Energy Efficiency Rebate Programs (Arkansas) Utility Rebate Program Arkansas Commercial Fed. Government Industrial Institutional Local Government Nonprofit Schools State Government Building Insulation Central Air conditioners Chillers Custom/Others pending approval Duct/Air sealing Lighting Lighting Controls/Sensors Motor VFDs Motors Roofs LED Exit Signs Commercial Refrigeration Equipment Ground Source Heat Pumps Yes APS - Energy Efficiency Solutions for Business (Arizona) Utility Rebate Program Arizona Commercial

419

Deputy Secretary Poneman Announces Team led by Oak Ridge National...  

Office of Environmental Management (EM)

Deputy Secretary Poneman Announces Team led by Oak Ridge National Lab Selected to Receive up to 122 Million for Nuclear Energy Innovation Hub Deputy Secretary Poneman Announces...

420

Adopting LED Technology: What Federal Facility Managers Need to Know  

Broader source: Energy.gov [DOE]

This document describes the presentation slides for the "Adopting LED Technology: What Federal Facility Managers Need to Know" webinar that took place on September 11, 2014.

Note: This page contains sample records for the topic "led cost model" 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

New reversing design method for LED uniform illumination  

Science Journals Connector (OSTI)

In light-emitting diode (LED) applications, it is becoming a big issue that how to optimize light intensity distribution curve (LIDC) and design corresponding optical component to...

Wang, Kai; Wu, Dan; Qin, Zong; Chen, Fei; Luo, Xiaobing; Liu, Sheng

2011-01-01T23:59:59.000Z

422

The City of Los Angeles LED Streetlight Program  

Broader source: Energy.gov [DOE]

View the video about the Los Angeles LED streetlight program, featuring an interview with City of Los Angeles Bureau of Street Lighting Director, Ed Ebrahimian.

423

Excellent color rendering indexes of multi-package white LEDs  

Science Journals Connector (OSTI)

This study introduces multi-package white light-emitting diodes (LEDs) system with the ability to realize high luminous efficacy and an excellent color rendering index (CRI,...

Oh, Ji Hye; Yang, Su Ji; Sung, Yeon-Goog; Do, Y R

2012-01-01T23:59:59.000Z

424

Secretary Chu Announces Funding for 71 University-Led Nuclear...  

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

Secretary Chu Announces Funding for 71 University-Led Nuclear Research and Development Projects WASHINGTON, DC U.S. Energy Secretary Steven Chu today announced the selection of...

425

Technology makes reds "pop" in LED displays | GE Global Research  

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

Televisions Research breakthrough will vastly improve color and crispness of images on LED devices NISKAYUNA, NY, July, 24, 2014 - GE announced today a research breakthrough that...

426

Minimal Viewing Distance Calculation in LED Display Panels  

Science Journals Connector (OSTI)

Light-emitting diode (LED) display panels have received more attention recently. These panels usually are placed in public places such as streets, ...

Nazeran Motlagh, A Ali; Hashemi, B Massoud Reza

2010-01-01T23:59:59.000Z

427

High-performance LED street lighting using microlens arrays  

Science Journals Connector (OSTI)

An efficient LED lamp that illuminates the street with high quality is presented. The luminaire shows high optical efficiency, high optical utilization factor, low glare, and...

Lee, Xuan-Hao; Moreno, Ivan; Sun, Ching-Cherng

2013-01-01T23:59:59.000Z

428

Cooking Up New Nanoribbons to Make Better White LEDs | Advanced...  

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

Subscribe to APS Science Highlights rss feed Cooking Up New Nanoribbons to Make Better White LEDs FEBRUARY 24, 2014 Bookmark and Share The researchers fabricated three types of...

429

High Bandgap Phosphide Approaches for LED Applications - Energy...  

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

Applications A new approach to fabricating high-efficiency Amber LEDs National Renewable Energy Laboratory Contact NREL About This Technology Publications: PDF Document...

430

IM-GEO: Impact of R and D on cost of geothermal power: Documentation of Model Version 2. 09  

SciTech Connect (OSTI)

IM-GEO is an analysis used to estimate the impact of technology improvements on the relative cost of hydrothermal power. The analysis is available in a tutorial program for use on personal computers. It is designed for use by R and D program managers to evaluate R and D options. Only the potential impact of technologies is considered with all economic factors being held constant. This analysis has one unique feature. The economic impact of reducing risk by improving reservoir characterization is included using a strategy currently employed by financial institutions. This report describes the basis of the calculations, documents the code, and describes the operational procedures. Application of the code to study potential cost reductions due to R and D success will be done by R and D managers to evaluate and direct their own programs.

Petty, S.; Entingh, D.; Livesay, B.J.

1988-02-01T23:59:59.000Z

431

A Cost Effective, Integrated and Smart Radioactive Safeguard System  

E-Print Network [OSTI]

Photographic Experts Group LED Light Emitting Diode MC&A Material Cost & Acoounting MDI Multiple Document Interface MJPEG Motion JPEG MMS Microsoft Media Services MPEG Motion Pictures Expert Group NDA Non-Destructive Analysis NSSPI Nuclear Security... Photographic Experts Group LED Light Emitting Diode MC&A Material Cost & Acoounting MDI Multiple Document Interface MJPEG Motion JPEG MMS Microsoft Media Services MPEG Motion Pictures Expert Group NDA Non-Destructive Analysis NSSPI Nuclear Security...

Singh, Harneet

2012-02-14T23:59:59.000Z

432

Estimating Specialty Costs  

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

Specialty costs are those nonstandard, unusual costs that are not typically estimated. Costs for research and development (R&D) projects involving new technologies, costs associated with future regulations, and specialty equipment costs are examples of specialty costs. This chapter discusses those factors that are significant contributors to project specialty costs and methods of estimating costs for specialty projects.

1997-03-28T23:59:59.000Z

433

Direct costing  

E-Print Network [OSTI]

oau 5e reduced. Under the same oonOitions, even ~Me on a bread scale entails not mere1y the conduct of the direct oyeraticns cf yrccessing the materials into finished products, but also the performance of auxiliary functions. these may 'ba power y... purposes have been advanced as folkway le Most of a o03RyaxO' 8 products Grc usual13r sold at prices which oovex' full product costs y plus 861ling a%el administrative expenses, plus normal profit. The inventoi~ valuate. on should be consistent...

Browning, Donald Bullock

2012-06-07T23:59:59.000Z

434

Cost Analysis Rate Settin  

E-Print Network [OSTI]

Cost Analysis and Rate Settin for Animal Research Facilities #12;#12;Cost Analysis and Rate ... .. . ...................... . . . ................................. . .... 7 Chapter 2 Preparation for Cost Analysis ......................................................... 9 Chapter 3 Assignment of Costs to Animal Research Facility Cost Centers

Baker, Chris I.

435

LED bulbs technical specification and testing procedure for solar home systems  

Science Journals Connector (OSTI)

Abstract The definition of technical specifications and the corresponding laboratory procedures are necessary steps in order to assure the quality of the devices prior to be installed in Solar Home Systems (SHS). To clarify and unify criteria a European project supported the development of the Universal Technical Standard for Solar Home Systems (UTSfSHS). Its principles were to generate simple and affordable technical requirements to be optimized in order to facilitate the implementation of tests with basic and simple laboratory tools even on the same SHS electrification program countries. These requirements cover the main aspects of this type of installations and its lighting chapter was developed based on the most used technology at that time: fluorescent tubes and CFLs. However, with the consolidation of the new LED solid state lighting devices, particular attention is being given to this matter and new procedures are required. In this work we develop a complete set of technical specifications and test procedures that have been designed within the frame of the UTSfSHS, based on an intense review of the scientific and technical publications related to LED lighting and their practical application. They apply to lamp reliability, performance and safety under normal, extreme and abnormal operating conditions as a simple but complete quality meter tool for any LED bulb. These tests have been applied to a group of 14 low-cost direct current LED bulbs and the accomplishment of the proposed requirements is analyzed.

Alfonso Gago Calderón; Luis Narvarte Fernández; Luis Miguel Carrasco Moreno; Javier Serón Barba

2015-01-01T23:59:59.000Z

436

Conservation Cost-Effectiveness Determination Methodology  

E-Print Network [OSTI]

Conservation Cost-Effectiveness Determination Methodology CONSERVATION COST-EFFECTIVENESS As with all other resources, the Council uses its portfolio model to determine how much conservation is cost the amount of savings achievable at varying costs. In order to capture the impact of variations in wholesale

437

Cost Sharing What is Cost Sharing?  

E-Print Network [OSTI]

1 Cost Sharing What is Cost Sharing? x Cost sharing is a commitment to use university resources and Expenses o Equipment x Committing to cost share is highly discouraged unless required by the sponsoring agency x Tracking of committed cost share is required to meet federal regulations (OMB A-110) x UCSD has

Tsien, Roger Y.

438

Kenya-LEDS Tier I Activities | Open Energy Information  

Open Energy Info (EERE)

Kenya-LEDS Tier I Activities Kenya-LEDS Tier I Activities Jump to: navigation, search Name Kenya-LEDS Tier I Activities Agency/Company /Organization United States Department of State, United States Department of Agriculture Partner Multiple Ministries of Agriculture Sector Climate, Land Focus Area Agriculture, Land Use Topics Co-benefits assessment, Low emission development planning, -LEDS Website http://transition.usaid.gov/ou Program Start 2011 Program End 2014 Country Kenya Eastern Africa References Enhancing Capacity for Low Emission Development Strategies Program[1] Overview "Enhancing Capacity for Low Emission Development Strategies (EC-LEDS) is a U.S. Government initiative to support developing countries' efforts to pursue long-term, transformative development and accelerate sustainable,

439

LED Traffic Lights Get Buy American Stamp | Department of Energy  

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

LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp November 30, 2010 - 10:19am Addthis Red. Yellow. Green. What LED traffic signals don't say: Made in USA. That is changing. Dialight Corporation, an LED lighting manufacturer with U.S. corporate offices in Farmingdale, New Jersey, and a parent company based in the U.K., invested nearly $3 million into renovating their 75,000-square-foot production facility in Roxboro, North Carolina. With these improvements, Dialight's Roxboro plant is projected to scale up production by 400 percent. "Bringing manufacturing back to America is a win-win scenario," said Roy Burton, Dialight's Group Chief Executive. "We're helping the economy by creating new jobs, and at the same time we're finding it more

440

LED Lighting: Just the Facts, Please! | Department of Energy  

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

LED Lighting: Just the Facts, Please! LED Lighting: Just the Facts, Please! LED Lighting: Just the Facts, Please! January 4, 2010 - 7:30am Addthis John Lippert My June 16, 2009 blog gave tips on purchasing high-quality LED lights. Now there's another arsenal in the toolbox to help consumers find LED lights they can trust: the Lighting Facts(tm) label. As part of the SSL Quality Advocates voluntary pledge program developed jointly by the U.S. Department of Energy and the Next Generation Lighting Industry Alliance (NGLIA), the label is similar to the familiar nutrition label found on most food products. The label contains a lot of information that can help a consumer compare lighting products, including: light output in lumens; watts, the power the light consumes; lumens per watt, a measure of the product's efficacy (how

Note: This page contains sample records for the topic "led cost model" 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

Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop  

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

Los Angeles, CA to someone Los Angeles, CA to someone by E-mail Share Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Los Angeles, CA on Facebook Tweet about Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Los Angeles, CA on Twitter Bookmark Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Los Angeles, CA on Google Bookmark Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Los Angeles, CA on Delicious Rank Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Los Angeles, CA on Digg Find More places to share Solid-State Lighting: Municipal Consortium

442

Costa Rica-LEDS Tier I Activities | Open Energy Information  

Open Energy Info (EERE)

Costa Rica-LEDS Tier I Activities Costa Rica-LEDS Tier I Activities Jump to: navigation, search Name Costa Rica-LEDS Tier I Activities Agency/Company /Organization United States Department of State, United States Department of Agriculture Partner Multiple Ministries of Agriculture Sector Climate, Land Focus Area Agriculture, Land Use Topics Co-benefits assessment, Low emission development planning, -LEDS Website http://transition.usaid.gov/ou Program Start 2011 Program End 2014 Country Costa Rica Central America References Enhancing Capacity for Low Emission Development Strategies Program[1] Overview "Enhancing Capacity for Low Emission Development Strategies (EC-LEDS) is a U.S. Government initiative to support developing countries' efforts to pursue long-term, transformative development and accelerate sustainable,

443

Save Money with LED Holiday Light Strings | Department of Energy  

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

Money with LED Holiday Light Strings Money with LED Holiday Light Strings Save Money with LED Holiday Light Strings December 1, 2009 - 11:19am Addthis Allison Casey Senior Communicator, NREL It's hard to believe, but the holidays are in full swing and many of you are starting to decorate your homes. Those of you who started around Halloween are probably feeling pretty smart because you got your decorating done while the weather was nice. I see you there, snacking on your Thanksgiving leftovers, laughing at me shivering in the cold and struggling to undo the knot in my lights. Don't look so smug. Those of us who haven't started decorating yet may actually be the smart ones this year, because we still have a chance to buy LED light strings. LED (or light emitting diode) light strings can use 90% less energy than

444

Information Resources: Webcast: Evaluating LED Street Lighting Solutions  

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

Evaluating LED Street Lighting Solutions Evaluating LED Street Lighting Solutions In this July 20, 2010 webcast, Edward Smalley of Seattle City Light provided an update on DOE Municipal Solid-State Street Lighting Consortium activities. The webcast also presented perspectives from members who are involved with implementing LED street lighting evaluations, including Tod Rosinbum of the City of Portland, Oregon, John Walter of National Grid, and Amy Olay of the City of San Jose, California. View presentation slides (Visit the Adobe® Web site to Download Adobe Reader.) Introduction (PDF 984 KB) Edward Smalley, DOE Municipal Solid-State Street Lighting Consortium, Moderator Evaluating LED Street Lighting Solutions (PDF 404 KB) Tod Rosinbum, City of Portland, Oregon LED Pilot Projects: A Utility Perspective (PDF 112 KB)

445

LED Lights for All Occasions | Department of Energy  

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

Lights for All Occasions Lights for All Occasions LED Lights for All Occasions November 15, 2012 - 1:15pm Addthis With such a variety of lights available, LEDs are a perfect choice for holiday lighting. | Photo courtesy of ©iStockphoto.com/Birzio With such a variety of lights available, LEDs are a perfect choice for holiday lighting. | Photo courtesy of ©iStockphoto.com/Birzio Elizabeth Spencer Communicator, National Renewable Energy Laboratory What does this mean for me? Energy-efficient LED lights can be used to save money while decorating this holiday season. The topic of lighting is no stranger to the Energy Saver blog. And energy-efficient lights--and particularly LEDs--are one of those wonderful things that come up a lot around the holidays, since there are so many wonderful ways to use them. But it's still too early to talk about

446

Greenhouse Gas Mitigation Options in ISEEM Global Energy Model: 2010-2050 Scenario Analysis for Least-Cost Carbon Reduction in Iron and Steel Sector  

E-Print Network [OSTI]

grows. EAF-DRI (Gas based) production cost continues toproduction costs from EAF-DRI (Gas based) and EAF productionCost of Steel from EAF-DRI (Gas based) Figure 11. Process Based Production

Karali, Nihan

2014-01-01T23:59:59.000Z

447

A NEW LED-LED PORTABLE CO2 GAS SENSOR BASED ON AN INTERCHANGEABLE MEMBRANE SYSTEM FOR INDUSTRIAL APPLICATIONS  

E-Print Network [OSTI]

A NEW LED-LED PORTABLE CO2 GAS SENSOR BASED ON AN INTERCHANGEABLE MEMBRANE SYSTEM FOR INDUSTRIAL instrumentation. 1. INTRODUCTION CO2 is an important industrial gas for many different uses that include electrolytes [10;11]. The most popular sensors used for CO2 gas sensing in biotechnological applications

Lee, Hyowon

448

Cost Sharing Basics Definitions  

E-Print Network [OSTI]

Cost Sharing Basics Definitions Some funding agencies require the grantee institution the project costs. Cost sharing is defined as project costs not borne by the sponsor. Cost sharing funds may resources or facilities. If the award is federal, only acceptable non-federal costs qualify as cost sharing

Finley Jr., Russell L.

449

Modelling, simulation and analysis of low-cost direct torque control of PMSM using hall-effect sensors  

E-Print Network [OSTI]

is presented. A mathematical model for the proposed DTC of the PMSM topology is developed. A simulation program written in MATLAB/SIMULINK? is used to verify the basic operation (performance) of the proposed topology. The mathematical model is capable....5 Load Angle Measurement ........................................................................81 ix CHAPTER IV OPEN-LOOP SIMULINK? MODEL OF THE PM SPINDLE MOTOR ...........88 4.1 Principles of PMSM Open-Loop Control...

Ozturk, Salih Baris

2007-04-25T23:59:59.000Z

450

Technology Cost and Performance Toolkit | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Technology Cost and Performance Toolkit (Redirected from Gateway:International/Technology Performance and Costs) Jump to: navigation, search Stage 3 LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and

451

FULL-COST ACCOUNTING  

Science Journals Connector (OSTI)

FULL-COST ACCOUNTING ... Environmental costs would be built into a product's cost, and consumers would be able to make informed purchases. ...

1993-01-11T23:59:59.000Z

452

Alternative Fuels Data Center: Vehicle Cost Calculator  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Vehicle Cost Vehicle Cost Calculator to someone by E-mail Share Alternative Fuels Data Center: Vehicle Cost Calculator on Facebook Tweet about Alternative Fuels Data Center: Vehicle Cost Calculator on Twitter Bookmark Alternative Fuels Data Center: Vehicle Cost Calculator on Google Bookmark Alternative Fuels Data Center: Vehicle Cost Calculator on Delicious Rank Alternative Fuels Data Center: Vehicle Cost Calculator on Digg Find More places to share Alternative Fuels Data Center: Vehicle Cost Calculator on AddThis.com... Vehicle Cost Calculator Vehicle Cost Calculator This tool uses basic information about your driving habits to calculate total cost of ownership and emissions for makes and models of most vehicles, including alternative fuel and advanced technology vehicles. Also

453

Interruption Cost Estimate Calculator | Open Energy Information  

Open Energy Info (EERE)

Interruption Cost Estimate Calculator Interruption Cost Estimate Calculator Jump to: navigation, search Tool Summary Name: Interruption Cost Estimate (ICE) Calculator Agency/Company /Organization: Freeman, Sullivan & Co. Sector: Energy Focus Area: Grid Assessment and Integration, Energy Efficiency Resource Type: Online calculator, Software/modeling tools User Interface: Website Website: icecalculator.com/ Country: United States Cost: Free Northern America References: [1] Logo: Interruption Cost Estimate (ICE) Calculator This calculator is a tool designed for electric reliability planners at utilities, government organizations or other entities that are interested in estimating interruption costs and/or the benefits associated with reliability improvements. About The Interruption Cost Estimate (ICE) Calculator is an electric reliability

454

Part cost estimation at early design phase  

Science Journals Connector (OSTI)

Abstract Although 70% of part cost is determined during the early design stage, designers rarely accurately estimate the costs of their designs. Based on extensive literature review, in-depth industrial survey and close collaboration with multiple manufacturers, forty factors were identified as governing part cost and ranked according to cost impact. Based on parameter ranking and availability at the early stages of design, a cost estimator for designers is proposed. As the design progresses and more parameters become available, a more accurate cost model is derived and proposed to manufacturers. Results are analyzed and compared to actual manufacturing costing demonstrating good fit.

Gila Molcho; Asher Cristal; Moshe Shpitalni

2014-01-01T23:59:59.000Z

455

Energy Department Announces New Investments in University-Led Nuclear  

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

New Investments in University-Led New Investments in University-Led Nuclear Energy Innovation Energy Department Announces New Investments in University-Led Nuclear Energy Innovation September 27, 2012 - 11:07am Addthis WASHINGTON - As part of the Obama Administration's all-of-the-above energy strategy to deploy every available source of American energy and ensure the U.S. remains competitive globally, the Energy Department announced today more than $13 million in new investments for university-led nuclear innovation projects. The three awards announced today under the Department's Nuclear Energy University Programs (NEUP) will support nuclear energy R&D and student investment at U.S. colleges and universities across the country, ensuring that secure, safe and efficient nuclear energy

456

LEDS Capacity Building and Training Inventory | Open Energy Information  

Open Energy Info (EERE)

LEDS Capacity Building and Training Inventory LEDS Capacity Building and Training Inventory Jump to: navigation, search Home | About | Inventory | Partnerships | Capacity Building | Webinars | Reports | Events | News | List Serve LEDS Capacity Building and Training Activities and Resources Upcoming Capacity Building Events CLEAN shares capacity building activity information to encourage technical institutions to better coordinate efforts and avoid duplication of effort. If you are aware of an upcoming LEDS-related training or capacity building event please add it to the calendar below. Add Capacity Building or Training Event Webinars Title Developer Biopower Tool Webinar National Renewable Energy Laboratory United States Department of Energy Centro de Energías Renovables (CER) CESC-Webinar: Building an Innovation and Entrepreneurship Driven Economy: How Policies Can Foster Risk Capital Investment in Renewable Energy Clean Energy Solutions Center

457

Energy Department Announces New Investments in University-Led Nuclear  

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

Energy Department Announces New Investments in University-Led Energy Department Announces New Investments in University-Led Nuclear Energy Innovation Energy Department Announces New Investments in University-Led Nuclear Energy Innovation September 27, 2012 - 11:07am Addthis WASHINGTON - As part of the Obama Administration's all-of-the-above energy strategy to deploy every available source of American energy and ensure the U.S. remains competitive globally, the Energy Department announced today more than $13 million in new investments for university-led nuclear innovation projects. The three awards announced today under the Department's Nuclear Energy University Programs (NEUP) will support nuclear energy R&D and student investment at U.S. colleges and universities across the country, ensuring that secure, safe and efficient nuclear energy

458

LEDS Collaboration in Action Workshop Presentations | Open Energy  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » LEDS Collaboration in Action Workshop Presentations Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us ACDS Workshop Participant Pack Agenda Accommodations Participants Location Arrival Form Open Space Sessions Speakers Presentations Links Contact Us Presentation and Related Documents Documents Title Welcome.pdf Welcome to the LEDS Collaboration in Action Workshop Round1.pdf ROUND 1 - Strategy Development: the case for LEDS at the country level Round2.pdf ROUND 2 - Analytics and Tools: developing national level LEDS inventories and scenarios

459

Sandia National Laboratories: AlGaAs LEDs  

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

electroluminescence was first reported by H.J. Round in 1907, and the first light-emitting diode (LED) was reported by O.V. Losev in 1927. Not until the birth of semiconductor...

460

Faculty-Led Study Abroad in Atmospheric Science Education  

Science Journals Connector (OSTI)

For several years the University of Wisconsin–Milwaukee's Atmospheric Science group has offered the faculty-led study abroad program Mexico: Air Pollution and Ancient Cultures. In this course, open to both atmospheric science majors and nonmajors as well ...

Jonathan D. W. Kahl; Julia G. Cerón

2014-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "led cost model" 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

Laboratory Evaluation of LED T8 Replacement Lamp Products  

SciTech Connect (OSTI)

A report on a lab setting analysis involving LED lamps intended to directly replace T8 fluorescent lamps (4') showing light output, power, and economic comparisons with other fluorescent options.

Richman, Eric E.; Kinzey, Bruce R.; Miller, Naomi J.

2011-05-23T23:59:59.000Z

462

Deputy Secretary Poneman Announces Team led by Oak Ridge National...  

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

Deputy Secretary Poneman Announces Team led by Oak Ridge National Lab Selected to Receive up to 122 Million for Nuclear Energy Innovation Hub WASHINGTON, D.C. As part of a...

463

EECBG Success Story: LEDs Ready for Takeoff at Louisiana Airport  

Broader source: Energy.gov [DOE]

About 250 lights along the taxiway at Hammond Northshore Regional Airport in Louisiana are being replaced with light-emitting diodes (LEDs) with funds from an Energy Efficiency and Conservation Block Grant (EECBG). Learn more.

464

Better than CFL? Dimmable LED Downlights in Hospitality Facilities Webinar  

Broader source: Energy.gov [DOE]

LEDs represent less than 1% of the installed base of U.S. downlights, which in 2012 numbered about 700 million. In hospitality facilities, past efforts to reduce lighting energy use have mainly...

465

LED packaging for extremely uniform angular CCT distribution  

Science Journals Connector (OSTI)

A precise simulation and detailed design of ACCTD of white LEDs from 2800K to 6500K are presented. The best results of ACCTD in the simulation and experiment are 105K and 182K near...

Chen, Ching-Yi; Chang, Yu-Yu; Yang, Tsung-hsun; Sun, Ching-Cherng

466

LED-based CO2 Sensor for Balloon Deployment  

Science Journals Connector (OSTI)

We are developing a sensor for monitoring ambient CO2 from unmanned aircraft and balloons. The sensor consists of a mid-IR LED coupled with a high dynamic range gated integrator. The...

Sonnenfroh, David; Parameswaran, Krishnan

467

Exciton Migration in Organic LEDs and Solar Cells  

Science Journals Connector (OSTI)

Triplet exciton migration is a very important process for both organic LEDs and photovoltaics. We have explored a number of new materials in both OLEDs and OPVs and examined triplet...

Thompson, Mark; Wu, Chao; Djurovich, Peter; Perez, M Dolores

468

Advances in Chip Technology, Packaging Enable White LED Breakthroughs  

Broader source: Energy.gov [DOE]

Significant advances in chip technology have enabled Cree, Inc.'s Santa Barbara Technology Center to demonstrate white LEDs with record efficacies as high as 74 lumens per watt - on par with...

469

Energy - LEDs to light UT arena | ornl.gov  

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

to 85 percent more efficient than conventional arena metal halide lights. The light-emitting diode fixtures developed by Oak Ridge-based LED North America incorporate an Oak...

470

Text-Alternative Version: LED Color Stability Webinar  

Broader source: Energy.gov [DOE]

Michael Royer: All right, welcome ladies and gentleman. I'm Michael Royer of Pacific Northwest National Laboratory, and I'd like to welcome you to today's webinar on LED Color Stability, Ten...

471

LEDS Collaboration in Action Workshop | Open Energy Information  

Open Energy Info (EERE)

LEDS Collaboration in Action Workshop LEDS Collaboration in Action Workshop Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us London Event Participant Pack Agenda Accommodations Participants Location Arrival Form Open Space Sessions Speakers Presentations Links Contact Us Low Emissions Development Strategies (LEDS) Global Partnership Collaboration in Action Workshop 21-23 March 2012 London, UK The workshop brought together carefully selected low emission development leaders from around the world to share experiences and explore opportunities to enhance coordination on LEDS globally. The workshop goals were to: Convene low emissions development and low carbon growth decision-makers Promote South-South and North-South collaboration and exchange

472

Exploring Cost-Effective, High Performance Residential Retrofits for Affordable Housing in the Hot Humid Climate  

SciTech Connect (OSTI)

In 2009, a Department of Energy Building America team led by the Florida Solar Energy Center began working with partners to find cost-effective paths for improving the energy performance of existing homes in the hot humid climate. A test-in energy audit and energy use modeling of the partner's proposed renovation package was performed for 41 affordable and middle income foreclosed homes in Florida and Alabama. HERS1 Indices ranged from 92 to 184 with modeled energy savings ranging from 3% to 50% (average of 26%). Analyses and recommendations were discussed with partners to encourage more efficient retrofits, highlight health and safety issues, and gather feedback on incremental cost of high performance measures. Ten completed renovations have modeled energy savings ranging from 9% to 48% (average 31%.) This paper presents the project's process including our findings thus far and highlights of the first home to meet the target HERS Index of 70.

McIlvaine, Janet; Sutherland, Karen; Schleith, Kevin; Chandra, Subrato

2010-08-27T23:59:59.000Z

473

Design and Realize of the Graphics Platform for LED Lamps’ Layout Based on GDI+ and Dual-Buffer  

Science Journals Connector (OSTI)

Based on the GDI+ class library and dual-buffer technology of .NET framework, the software for LED lamps’ layout is developed. On the basis of determining the scheme of layout platform, the metafile class library model by Composite design-set and the process of calling the LED pixels metafile symbol interface are designed firstly. The design method of realizing the LED pixels metafile visual editing on the drawn LED logical pixel based on GDI+ is analyzed. The dual-buffer technology is used to solve the problem of flicker when fast refreshing. The testing results show that the platform can meet the basic function requirements of engineering application, and realize partial adjust on the process of LED lamps layout without distortion.

Wen Yuanmei; Nie Xinming; Liu Guixiong

2012-01-01T23:59:59.000Z

474

LED Dot matrix text recognition method in natural scene  

Science Journals Connector (OSTI)

Abstract In recent years, light-emitting diodes dot-matrix text (LED text) is being widely used for displaying information and announcements. However, there is currently no text detection system that is capable of handling LED text. Unlike general printed text, it is not easy to detect and recognize LED text due to its discontinuity. A character of the LED is generally displayed with a matrix of segments and composed with them to generate the text. Furthermore, it is necessary to detect each character from a line of LED text for creating a robust text detection system. Thus, this paper proposes a method for LED text detection and recognition in natural scene images. To perform this goal of detection and recognition of a character and text, it consists of two main steps with the following steps: the first step, a Canny edge was used to detect character pixels which appear in LED display area from scene images. The center points of edge segments are calculated. These points are merged based on their properties to generate a character candidate. In order to obtain character feature, the spatial information such as a centroid and orientation of the character candidate are used. These values are then analyzed using a k-nearest neighbor approach for classifying the character candidate as a certain alphanumeric. In the second step, the recognized characters are later combined into a text line based on the similarity of their characteristics such as width, height, aspect ratio and color. The post-processing of text line generating is then applied for rectifying the falsely recognized characters. In experiments, our proposed method achieves 68.8% and 47% for detection and recognition rate, respectively. These results show the robustness and effectiveness of the proposed method for detecting and recognizing the LED text in natural scene images that has filled the vacancy that the printed and dense text detection system has not covered.

Wahyono; Kanghyun Jo

2015-01-01T23:59:59.000Z

475

Integrated LED-based luminare for general lighting  

DOE Patents [OSTI]

Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.

Dowling, Kevin J.; Lys, Ihor A.; Roberge, Brian; Williamson, Ryan C.; Roberts, Ron; Datta, Michael; Mollnow, Tomas; Morgan, Frederick M.

2013-03-05T23:59:59.000Z

476

White LED Benchmark of 65 Lumens Per Watt Achieved  

Broader source: Energy.gov [DOE]

Novel chip design and the balance of multiple interrelated design parameters have enabled Cree, Inc.'s Santa Barbara Technology Center to demonstrate white LEDs with efficacies greater than 65 lumens per watt at 350 mA. The results are particularly significant because they were achieved with a pre-production prototype chip using the same package used in Cree's commercially available XLamp® 7090 high power LED, rather than a laboratory device.

477

Article Published on LED Lumen Maintenance and Light Loss Factors  

Broader source: Energy.gov [DOE]

An article has been published in LEUKOS: The Journal of the Illuminating Engineering Society of North America (IES) that may be of interest to the solid-state lighting community. Entitled "Lumen Maintenance and Light Loss Factors: Consequences of Current Design Practices for LEDs," the article was written by Michael Royer of Pacific Northwest National Laboratory and discusses complications related to the lamp lumen depreciation (LLD) light loss factor and LEDs.

478

Cost-Effectiveness Ratio  

Science Journals Connector (OSTI)

The cost?effectiveness ratio (CER) is a calculation that summarizes the intervention's net cost and effectiveness. The three types of CER are: the average cost?effectiveness ratio (ACER), the marginal cost?...

2008-01-01T23:59:59.000Z

479

Cost Share-Cost Reimbursement Invoice Format Example | The Ames...  

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

Share-Cost Reimbursement Invoice Format Example Effective Date: 102014 File (public): Cost Share-Cost...

480

Fault Models and Test Generation for Hardware-Software Covalidation Ian G. Harris  

E-Print Network [OSTI]

use of hardware-software systems in cost-critical and life-critical applications has led to heightenedFault Models and Test Generation for Hardware-Software Covalidation £ Ian G. Harris Department: Hardware-Software Covalidation, Design Validation, Test Generation, Fault Models Abstract The increasing

Harris, Ian G.

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481

High-Efficiency Non-Polar GaN-Based LEDs  

SciTech Connect (OSTI)

Inlustra Technologies with subcontractor U.C. Santa Barbara conducted a project with the principle goal of demonstrating high internal quantum efficiency blue (430 nm) and green (540nm) light emitting diodes (LEDs) on low-defect density non-polar GaN wafers. Inlustra pursued the fabrication of smooth thick a-plane and m-plane GaN films, as well as defect reduction techniques such as lateral epitaxial overgrowth (LEO) to uniformly lower dislocation density in these films. Limited free-standing wafers were produced as well. By the end of the reporting period, Inlustra had met its milestone of dislocation reduction to < 5 x 10{sup 6} cm{sup -2}. Stacking faults were still present in appreciable density ({approx} 1 x 10{sup 5} cm{sup -1}), but were not the primary focus of defect reduction since there have been no published studies establishing their detrimental effects on LED performance. Inlustra's LEO progress built a solid foundation upon which further commercial development of GaN substrates will occur. UCSB encountered multiple delays in its LED growth and fabrication efforts due to unavoidable facilities outages imposed by ongoing construction in an area adjacent to the metalorganic chemical vapor deposition (MOCVD) laboratory. This, combined with the large amount of ab initio optimization required for the MOCVD system used during the project, resulted in unsatisfactory LED progress. Although numerous blue-green photoluminescence results were obtained, only a few LED structures exhibited electroluminescence at appreciable levels. UCSB also conducting extensive modeling (led by Prof. Van de Walle) on the problem of non-radiative Auger recombination in GaN-based LED structures, which has been posited to contribute to LED efficiency 'droop' at elevated current density. Unlike previous modeling efforts, UCSB's approach was truly a first-principles ab initio methodology. Building on solid numerical foundations, the Auger recombination rates of In{sub x}Ga{sub 1-x}N alloys were calculated from first-principles density-functional and many-body-perturbation theory. The differing mechanisms of inter- and intra-band recombination were found to affect different parts of the emission spectrum. In the blue to green spectral region and at room temperature the Auger coefficient was calculated to be as large as 2 x 10{sup -30} cm{sup 6} s{sup -1}; in the infrared it is even larger. These results indicated that Auger recombination may be responsible for the loss of quantum efficiency that affects InGaN-based light emitters, whether on non-polar or polar crystal planes.

Paul Fini

2010-11-30T23:59:59.000Z

482

Highly-efficient, tunable green, phosphor-converted LEDs using a long-pass dichroic filter and a series of orthosilicate phosphors for tri-color white LEDs  

Science Journals Connector (OSTI)

This study introduces a long-pass dichroic filter (LPDF) on top of a phosphor-converted LED (pc-LED) packing associated with each corresponding tunable orthosilicate...

Oh, Ji Hye; Oh, Jeong Rok; Park, Hoo Keun; Sung, Yeon-Goog; Do, Young Rag

2012-01-01T23:59:59.000Z

483

Adaptation costs for sustainable development and ecological transitions: a presentation of the structural model M3ED with reference to French energy?economy?carbon dioxide emission prospects*  

Science Journals Connector (OSTI)

The aim of this paper is to assess the adaptation costs associated with the transition to a sustainable development path, taking the example of carbon dioxide emissions in the French economy. The model used is based on systems dynamics modelling and energy input-output analysis. This type of approach has the interesting property of precisely defining the nature of interactions between the different economic sectors, and between the economic sectors and the environment. This provides a framework within which to test different types of economic, technology and environment policy. In effect, according to our interests, it is necessary to measure problems of resources allocation or sequential choices between different alternatives why and how a particular solution comes to be selected from a multiplicity of alternatives. First, we characterise the methodological and conceptual specification of the model. Secondly, we locate specific properties of the model linked with both ecological sustainability and economic feasability constraints. Thirdly, a sensitivity test is applied concerning different control policy scenarios for the case of carbon dioxide emissions in the French economy.

Patrick Schembri

1999-01-01T23:59:59.000Z

484

Highly Efficient Small Form Factor LED Retrofit Lamp  

SciTech Connect (OSTI)

This report summarizes work to develop a high efficiency LED-based MR16 lamp downlight at OSRAM SYLVANIA under US Department of Energy contract DE-EE0000611. A new multichip LED package, electronic driver, and reflector optic were developed for these lamps. At steady-state, the lamp luminous flux was 409 lumens (lm), luminous efficacy of 87 lumens per watt (LPW), CRI (Ra) of 87, and R9 of 85 at a correlated color temperature (CCT) of 3285K. The LED alone achieved 120 lumens per watt efficacy and 600 lumen flux output at 25 C. The driver had 90% electrical conversion efficiency while maintaining excellent power quality with power factor >0.90 at a power of only 5 watts. Compared to similar existing MR16 lamps using LED sources, these lamps had much higher efficacy and color quality. The objective of this work was to demonstrate a LED-based MR16 retrofit lamp for replacement of 35W halogen MR16 lamps having (1) luminous flux of 500 lumens, (2) luminous efficacy of 100 lumens per watt, (3) beam angle less than 40{sup o} and center beam candlepower of at least 1000 candelas, and (4) excellent color quality.

Steven Allen; Fred Palmer; Ming Li

2011-09-11T23:59:59.000Z

485

A GIS Cost Model to Assess the Availability of Freshwater, Seawater, and Saline Groundwater for Algal Biofuel Production in the United States  

Science Journals Connector (OSTI)

As a whole, the barren and scrub lands of the southwestern U.S. have limited freshwater supplies, and large net evaporation rates greatly increase the cost of saline alternatives due to the added makeup water required to maintain pond salinity. ... Water consumption in Wigmosta et al.(2) was limited to evaporation; with the addition of saline resources we model the added water demand required to maintain salt concentrations in the pond (“blowdown”). ... However, the land use implications of this analysis need further exploration, as from a water perspective the use of arid sagebrush and desert lands for algae cultivation at energy scales is challenging, and our analysis suggests that presently occupied lands in the southeastern U.S. may have more favorable economic potential. ...

Erik R. Venteris; Richard L. Skaggs; Andre M. Coleman; Mark S. Wigmosta

2013-03-15T23:59:59.000Z

486

File:(131112) Presentacion LAC LEDs.pdf | Open Energy Information  

Open Energy Info (EERE)

131112) Presentacion LAC LEDs.pdf 131112) Presentacion LAC LEDs.pdf Jump to: navigation, search File File history File usage File:(131112) Presentacion LAC LEDs.pdf Size of this preview: 800 × 600 pixels. Go to page 1 2 3 4 5 6 7 8 9 10 Go! next page → next page → Full resolution ‎(1,500 × 1,125 pixels, file size: 775 KB, MIME type: application/pdf, 10 pages) File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 14:15, 12 December 2012 Thumbnail for version as of 14:15, 12 December 2012 1,500 × 1,125, 10 pages (775 KB) Gjones (Talk | contribs) You cannot overwrite this file. Edit this file using an external application (See the setup instructions for more information) File usage The following page links to this file:

487

LED Holiday Lights: Festive, Safe, and Efficient! | Department of Energy  

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

LED Holiday Lights: Festive, Safe, and Efficient! LED Holiday Lights: Festive, Safe, and Efficient! LED Holiday Lights: Festive, Safe, and Efficient! December 2, 2010 - 4:34pm Addthis Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs Ed. Note cross posted from the Energy Savers Blog. Written by Allison Casey This week brings a day that many people look forward to all year -- and I'm not talking about Thanksgiving, or Black Friday. I'm talking about that magical day when it's finally okay to drag the dusty boxes from the basement or attic, to lovingly sort and display your decorations, to untangle your light strings and set up the stepladder, all in anticipation of one glorious moment: Dad's annual trip to the emergency room. I kid (and sincerely hope that's not your yearly ritual), but in addition

488

Event:LEDS GP Event at Bonn | Open Energy Information  

Open Energy Info (EERE)

Bonn Bonn Jump to: navigation, search Calendar.png LEDS GP Event at Bonn: 17:00 - 19:15pm on 2012/05/23 This event will be co-hosted by the International Partnership on Mitigation and MRV (http://www.mitigationpartnership.net/) and the LEDS Global Partnership (http://openei.org/wiki/LEDSGP). The event titled Catalyzing Cooperative Action for Low Emissions Development will take place on May 23, 2012 from 17:00-19:15 at the BMU Headquarters in Bonn and will be followed by a reception from 19:15-20:30. The purpose of the event is to share information and learning related to current activities, to discuss and receive feedback on these activities, and to explore opportunities for linking with related initiatives. Event Details Name LEDS GP Event at Bonn Date 2012/05/23

489

Measuring Cost Variability in Provision of Transit Service  

E-Print Network [OSTI]

W. , and S. R. Mundle. Peak-Base Cost Allocation Models. In29–33. Reilly, J. M. Transit Costs During Peak and Off-PeakHow to Allocate Bus Route Costs. Transit, Vol. 5, No. 2,

Taylor, Brian D.; Garrett, Mark; Iseki, Hiroyuki

2010-01-01T23:59:59.000Z

490

Development of surface mine cost estimating equations  

SciTech Connect (OSTI)

Cost estimating equations were developed to determine capital and operating costs for five surface coal mine models in Central Appalachia, Northern Appalachia, Mid-West, Far-West, and Campbell County, Wyoming. Engineering equations were used to estimate equipment costs for the stripping function and for the coal loading and hauling function for the base case mine and for several mines with different annual production levels and/or different overburden removal requirements. Deferred costs were then determined through application of the base case depreciation schedules, and direct labor costs were easily established once the equipment quantities (and, hence, manpower requirements) were determined. The data points were then fit with appropriate functional forms, and these were then multiplied by appropriate adjustment factors so that the resulting equations yielded the model mine costs for initial and deferred capital and annual operating cost. (The validity of this scaling process is based on the assumption that total initial and deferred capital costs are proportional to the initial and deferred costs for the primary equipment types that were considered and that annual operating cost is proportional to the direct labor costs that were determined based on primary equipment quantities.) Initial capital costs ranged from $3,910,470 in Central Appalachia to $49,296,785; deferred capital costs ranged from $3,220,000 in Central Appalachia to $30,735,000 in Campbell County, Wyoming; and annual operating costs ranged from $2,924,148 in Central Appalachia to $32,708,591 in Campbell County, Wyoming. (DMC)

Not Available

1980-09-26T23:59:59.000Z

491

EC-LEDS in the Agriculture Sector | Open Energy Information  

Open Energy Info (EERE)

the Agriculture Sector the Agriculture Sector Jump to: navigation, search Name EC-LEDS in the Agriculture Sector Agency/Company /Organization United States Department of Agriculture, United States Department of State Partner Ministry of Agriculture, Ministry of Environment Sector Climate, Land Focus Area Agriculture, Economic Development, Greenhouse Gas, Land Use Topics Adaptation, Implementation, Low emission development planning, -LEDS, Policies/deployment programs Program Start 2011 Program End 2013 Country Costa Rica, Kenya, Mexico, Vietnam Central America, Eastern Africa, Central America, South-Eastern Asia References Land Use Assessment Toolkit - Agriculture Resources[1] Overview Progress and Outcomes Capacity building activities include strengthening implementation of

492

An LED-based Flasher System for VERITAS  

E-Print Network [OSTI]

We describe a flasher system designed for use in monitoring the gains of the photomultiplier tubes used in the VERITAS gamma-ray telescopes. This system uses blue light-emitting diodes (LEDs) so it can be operated at much higher rates than a traditional laser-based system. Calibration information can be obtained with better statistical precision with reduced loss of observing time. The LEDs are also much less expensive than a laser. The design features of the new system are presented, along with measurements made with a prototype mounted on one of the VERITAS telescopes.

Hanna, D; McCutcheon, M; Nikkinen, L; 10.1016/j.nima.2009.10.107

2009-01-01T23:59:59.000Z

493

Fatigue life evaluation of wire bonds in LED packages using numerical analysis  

Science Journals Connector (OSTI)

Abstract Reliability of LED packages is evaluated using several tests. When a thermal shock test, which is one of the reliability tests, is conducted, the most common failure mode is wire neck breakage. In order to evaluate the wire bonding reliability of LED packages, performing the thermal shock test is time-consuming. In this paper the wire bonding reliability for LED packages is evaluated by using numerical analysis. A wire bonding lifetime model for the thermal shock test was developed, which is based on Coffin-Manson fatigue law. The model was calibrated from fatigue data of thermal shock tests and volume averaging accumulated plastic strains. The accumulated plastic strains were calculated by using finite element analysis corresponding to the test conditions. The test conditions were changed by silicones, package sizes, wire bonding diameters, heights, and lengths. The calibrated model was used to estimate the number cycle to failure so that the wire bonding reliability for the thermal shock test was evaluated by performing the numerical analysis. Furthermore, we used a response surface methodology to study the relationship between the wire loop and the accumulated plastic strain to determine the optimal wire loop. The plastic strain was a function of diameter, height and length. At the optimal point, the number of cycle to failure for the thermal shock test was suggested using the wire bonding lifetime model.

Sung-Uk Zhang; Bang Weon Lee

2014-01-01T23:59:59.000Z

494

CALiPER Report 20.3: Robustness of LED PAR38 Lamps  

SciTech Connect (OSTI)

Three samples of 40 of the Series 20 PAR38 lamps underwent multi-stress testing, whereby samples were subjected to increasing levels of simultaneous thermal, humidity, electrical, and vibrational stress. The results do not explicitly predict expected lifetime or reliability, but they can be compared with one another, as well as with benchmark conventional products, to assess the relative robustness of the product designs. On average, the 32 LED lamp models tested were substantially more robust than the conventional benchmark lamps. As with other performance attributes, however, there was great variability in the robustness and design maturity of the LED lamps. Several LED lamp samples failed within the first one or two levels of the ten-level stress plan, while all three samples of some lamp models completed all ten levels. One potential area of improvement is design maturity, given that more than 25% of the lamp models demonstrated a difference in failure level for the three samples that was greater than or equal to the maximum for the benchmarks. At the same time, the fact that nearly 75% of the lamp models exhibited better design maturity than the benchmarks is noteworthy, given the relative stage of development for the technology.

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

2014-12-31T23:59:59.000Z

495

Implementing Intelligence-Led Policing: An Application of Loose-Coupling Theory  

Science Journals Connector (OSTI)

AbstractPurpose This research is intended to inform a knowledge gap in the literature and present the first national findings related to intelligence-led policing adoption among state and local agencies. Specific practices are identified to inform scholars and practitioners regarding intelligence-led policing behaviors. Methods Original survey research from a federally-funded project is gleaned to explore intelligence-led policing adoption through a loose-coupling theoretical perspective. Negative binomial and logistic regression models are employed to identify predictive relationships. Results Agencies nationwide appear to be closely following the National Criminal Intelligence Sharing Plan recommendations to enhance information sharing. Consistent with the Department of Homeland Security’s Target Capabilities List is also observed. Agency size appears to have a significant effect on key organizational information sharing behaviors. The findings are tempered due to limitations in the research design. Conclusions Local agencies appear to be tightly-coupled with the recommendations put forth in the National Criminal Intelligence Sharing Plan in their efforts to adopt intelligence-led policing. Agency size appears to enhance adoption across most dependent metrics. This research progresses the limited evidence base and progress regarding this emerging policing philosophy.

Jeremy G. Carter; Scott W. Phillips; S. Marlon Gayadeen

2014-01-01T23:59:59.000Z

496

State-led metropolitan governance in China: Making integrated city regions  

Science Journals Connector (OSTI)

Abstract Scholars have widely discussed the issue of how to govern rapidly growing metropolitan regions under the economic, social and political pressures of globalization. Many have argued for a metropolitan governance approach that involves less government regulation and more flexible arrangements between public and civic sectors. However, in countries like China, where a traditionally centralized state controls most resources and seeks to impose its vision for metropolitan development, a strong state-led approach is widely adopted. This article analyzes such a state-led model in China and identifies the economic and political factors that contribute to such development. It is suggested that metropolitan governance in China has formed a strong top-down, “dirigiste type” model to achieve state objectives. Findings are drawn from field observation, archival research and socio-economic data analysis in the Guangzhou–Foshan metropolitan region of the Pearl River Delta region in China.

Lin Ye

2014-01-01T23:59:59.000Z

497

DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse Gas  

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

DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse Gas Emissions DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse Gas Emissions June 29, 2012 - 12:19pm Addthis Judy McLemore from the Waste Isolation Pilot Plant led efforts to reduce the DOE’s vehicle fleet by 20 percent, improving sustainability and saving money. Under her leadership, greenhouse gas emissions associated with business travel were reduced by 63 percent and travel costs were reduced by greater than 60 percent. Judy McLemore from the Waste Isolation Pilot Plant led efforts to reduce the DOE's vehicle fleet by 20 percent, improving sustainability and saving money. Under her leadership, greenhouse gas emissions associated with business travel were reduced by 63 percent and travel costs were

498

DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse Gas  

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

DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse Gas Emissions DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse Gas Emissions June 29, 2012 - 12:19pm Addthis Judy McLemore from the Waste Isolation Pilot Plant led efforts to reduce the DOE’s vehicle fleet by 20 percent, improving sustainability and saving money. Under her leadership, greenhouse gas emissions associated with business travel were reduced by 63 percent and travel costs were reduced by greater than 60 percent. Judy McLemore from the Waste Isolation Pilot Plant led efforts to reduce the DOE's vehicle fleet by 20 percent, improving sustainability and saving money. Under her leadership, greenhouse gas emissions associated with business travel were reduced by 63 percent and travel costs were

499

Search Costs in Airline Markets  

E-Print Network [OSTI]

SEARCH COSTS IN AIRLINE MARKETS A Dissertation by JOSE ANTONIO PELLERANO GUZMAN Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree... Copyright 2013 José Antonio Pellerano Guzmán ii ABSTRACT This paper recovers consumer search cost estimates in airline markets consistent with theoretical search models. We follow an empirical framework developed in the recent literature...

Pellerano Guzman, Jose

2013-12-04T23:59:59.000Z

500

Small Area Array-Based LED Luminaire Design  

SciTech Connect (OSTI)

This report contains a summary of technical achievements during a three-year project to demonstrate high efficiency LED luminaire designs based on small area array-based gallium nitride diodes. Novel GaN-based LED array designs are described, specifically addressing the thermal, optical, electrical and mechanical requirements for the incorporation of such arrays into viable solid-state LED luminaires. This work resulted in the demonstration of an integrated luminaire prototype of 1000 lumens cool white light output with reflector shaped beams and efficacy of 89.4 lm/W at CCT of 6000oK and CRI of 73; and performance of 903 lumens warm white light output with reflector shaped beams and efficacy of 63.0 lm/W at CCT of 2800oK and CRI of 82. In addition, up to 1275 lumens cool white light output at 114.2 lm/W and 1156 lumens warm white light output at 76.5 lm/W were achieved if the reflector was not used. The success to integrate small area array-based LED designs and address thermal, optical, electrical and mechanical requirements was clearly achieved in these luminaire prototypes with outstanding performance and high efficiency.

Thomas Yuan

2008-01-09T23:59:59.000Z