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Note: This page contains sample records for the topic "area reliability coordinaiton" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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1

Improved load models for multi-area reliability calculations  

E-Print Network [OSTI]

IMPROVED LOAD MODELS FOR MULTI-AREA RELIABILITY CALCULATIONS A Thesis by SANJESH PATHAK Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May... 1992 Major Subject: Electrical Engineering IMPROVED LOAD MODELS FOR MULTI-AREA RELIABILITY CALCULATIONS A Thesis by SAN JESH PATHAK Approved as to style and content by: Chanan Singh (Chair of Committee) Prasad Enjeti (Member) Ces . Mal, e...

Pathak, Sanjesh

1992-01-01T23:59:59.000Z

2

Puget Sound area electric reliability plan. Draft environmental impact statement  

SciTech Connect (OSTI)

The Puget Sound Area Electric Reliability Plan Draft Environmental Impact Statement (DEIS) identifies the alternatives for solving a power system problem in the Puget Sound area. This Plan is undertaken by Bonneville Power Administration (BPA), Puget Sound Power & Light, Seattle City Light, Snohomish Public Utility District No. 1 (PUD), and Tacoma Public Utilities. The Plan consists of potential actions in Puget Sound and other areas in the State of Washington. A specific need exists in the Puget Sound area for balance between east-west transmission capacity and the increasing demand to import power generated east of the Cascades. At certain times of the year, there is more demand for power than the electric system can supply in the Puget Sound area. This high demand, called peak demand, occurs during the winter months when unusually cold weather increases electricity use for heating. The existing power system can supply enough power if no emergencies occur. However, during emergencies, the system will not operate properly. As demand grows, the system becomes more strained. To meet demand, the rate of growth of demand must be reduced or the ability to serve the demand must be increased, or both. The plan to balance Puget Sound`s power demand and supply has these purposes: The plan should define a set of actions that would accommodate ten years of load growth (1994--2003). Federal and State environmental quality requirements should be met. The plan should be consistent with the plans of the Northwest Power Planning Council. The plan should serve as a consensus guideline for coordinated utility action. The plan should be flexible to accommodate uncertainties and differing utility needs. The plan should balance environmental impacts and economic costs. The plan should provide electric system reliability consistent with customer expectations. 29 figs., 24 tabs.

Not Available

1991-09-01T23:59:59.000Z

3

Puget Sound Area Electric Reliability Plan : Draft Environmental Impact State.  

SciTech Connect (OSTI)

The Puget Sound Area Electric Reliability Plan Draft Environmental Impact Statement (DEIS) identifies the alternatives for solving a power system problem in the Puget Sound area. This Plan is undertaken by Bonneville Power Administration (BPA), Puget Sound Power Light, Seattle City Light, Snohomish Public Utility District No. 1 (PUD), and Tacoma Public Utilities. The Plan consists of potential actions in Puget Sound and other areas in the State of Washington. A specific need exists in the Puget Sound area for balance between east-west transmission capacity and the increasing demand to import power generated east of the Cascades. At certain times of the year, there is more demand for power than the electric system can supply in the Puget Sound area. This high demand, called peak demand, occurs during the winter months when unusually cold weather increases electricity use for heating. The existing power system can supply enough power if no emergencies occur. However, during emergencies, the system will not operate properly. As demand grows, the system becomes more strained. To meet demand, the rate of growth of demand must be reduced or the ability to serve the demand must be increased, or both. The plan to balance Puget Sound's power demand and supply has these purposes: The plan should define a set of actions that would accommodate ten years of load growth (1994--2003). Federal and State environmental quality requirements should be met. The plan should be consistent with the plans of the Northwest Power Planning Council. The plan should serve as a consensus guideline for coordinated utility action. The plan should be flexible to accommodate uncertainties and differing utility needs. The plan should balance environmental impacts and economic costs. The plan should provide electric system reliability consistent with customer expectations. 29 figs., 24 tabs.

United States. Bonneville Power Administration.

1991-09-01T23:59:59.000Z

4

Puget Sound Area Electric Reliability Plan : Final Environmental Impact Statement.  

SciTech Connect (OSTI)

A specific need exists in the Puget Sound area for balance between east-west transmission capacity and the increasing demand to import power generated east of the Cascades. At certain times of the year, and during certain conditions, there is more demand for power in the Puget Sound area than the transmission system and existing generation can reliably supply. This high demand, called peak demand occurs during the winter months when unusually cold weather increases electricity use for heating. The existing power system can supply enough power if no emergencies occur. However, during emergencies the system will not operate properly. As demand grows, the system becomes more strained. To meet demand, the rate of growth of demand must be reduced or the ability to serve the demand must be increased, or both.

United States. Bonneville Power Administration.

1992-04-01T23:59:59.000Z

5

Composite System based Multi-Area Reliability Evaluation  

E-Print Network [OSTI]

of the areas as a single node to which are connected the entire area generation and loads. The intratransmission lines are only indirectly modeled during the calculation of equivalent tie lines' capacities. This method is very widely used in the power industry...

Nagarajan, Ramya

2011-02-22T23:59:59.000Z

6

EIS-0160: Puget Sound Area Electric Reliability Plan  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy’s Bonneville Power Administration prepared this statement to assess the environmental and socioeconomic implications of potential solutions to address a power system problem in the Puget Sound area of Washington State.

7

A new mathematical approach to multi-area power system reliability evaluation  

E-Print Network [OSTI]

capacities and x +1, . . . , x?are intertie capacities. Corresponding to each load state i we have state space S1. For each S; there exists a map F;: S; ~ A. In the decomposition process, for each i, S; is then decomposed into sets of acceptable states As..., k E K C N and sets of unacceptable states B1, 1 C L C N. Each B1 is then classified accordingly as it is a loss of load in a particular area or not. Then the appropriate reliability indices are calculated. In the proposed approach the maximal flow...

Pathak, Rajesh

1990-01-01T23:59:59.000Z

8

Puget Sound Area Electric Reliability Plan. Appendix B : Local Generation Evaluation : Draft Environmental Impact Statement.  

SciTech Connect (OSTI)

The information and data contained in this Appendix was extracted from numerous sources. The principle sources used for technical data were Bonneville Power Administration's 1990 Resource Program along with its technical appendix, and Chapter 8 of the Draft 1991 Northwest Conservation and Electric Power Plan. All cost data is reported 1988 dollars unless otherwise noted. This information was supplemented by other data developed by Puget Sound utilities who participated on the Local Generation Team. Identifying generating resources available to the Puget Sound area involved a five step process: (1) listing all possible resources that might contribute power to the Puget Sound area, (2) characterizing the technology/resource status, cost and operating characteristics of these resources, (3) identifying exclusion criteria based on the needs of the overall Puget Sound Electric Reliability Plan study, (4) applying these criteria to the list of resources, and (5) summarizing of the costs and characteristics of the final list of resources. 15 refs., 20 tabs.

United States. Bonneville Power Administration.

1991-09-01T23:59:59.000Z

9

Puget Sound Area Electric Reliability Plan : Appendix E, Transmission Reinforcement Analysis.  

SciTech Connect (OSTI)

The purpose of this appendix to the draft environmental impact statement (EIS) report is to provide an update of the latest study work done on transmission system options for the Puget Sound Area Electric Reliability Plan. Also included in the attachments to the EIS are 2 reports analyzing the voltage stability of the Puget Sound transmission system and a review by Power Technologies, Inc. of the BPA voltage stability analysis and reactive options. Five transmission line options and several reactive options are presently being considered as possible solutions to the PSAFRP by the Transmission Team. The first two line options would be built on new rights-of way adjacent (as much as possible) to existing corridors. The reactive options would optimize the existing transmission system capability by adding new stations for series capacitors and/or switchgear. The other three line options are rebuilds or upgrades of existing cross mountain transmission lines. These options are listed below and include a preliminary assessment of the additional transmission system reinforcement required to integrate the new facilities into the existing transmission system. Plans were designed to provide at least 500 MVAR reactive margin.

United States. Bonneville Power Administration.

1992-04-01T23:59:59.000Z

10

The simultaneous decomposition-simulation approach for multi-area power system reliability evaluation  

E-Print Network [OSTI]

consideration of the multi-area load states. It can be used to compute loss of load probability, expected unserved demand, and frequency of capacity deficiency indices. Algorithms employing the simultaneous consideration of load states are introduced for (1...) calculation of loss of load probability and expected unserved demand, (2) cal culation of frequency, and (3) modeling of generating unit planned outages. These algorithms are fully described and tested, sample studies showing their merit are presented...

Deng, Zhong

1989-01-01T23:59:59.000Z

11

Puget Sound Area Electric Reliability Plan. Appendix E: Transmission Reinforcement Analysis : Draft Environmental Impact Statement.  

SciTech Connect (OSTI)

Five transmission line options and several reactive (voltage support) options are presently being considered as possible solutions to the PSAERP by the Transmission Team. The first two line options would be built on new rights-of way adjacent (as much as possible) to existing corridors. The reactive options would optimize the existing transmission system capability by adding new stations for series capacitors and/or switchgear. The other three line options are rebuilds or upgrades of existing cross mountain transmission lines. These options are listed below and include a preliminary assessment of the additional transmission system reinforcement required to integrate the new facilities into the existing transmission system. These options were derived from earlier study work that was summarized in Puget Sound Reinforcement Transmission Options'' and New Cross Mountain Transmission Line Alternative: The Crosstie'', which are attached. The initial Transmission Options study report recognized the value to system performance of adding an entirely new circuit rather than rebuilding an existing one. However, siting realities require that rebuild options be considered. Typically, the most attractive rebuild options would be the lowest capacity (lowest voltage) circuits. But because of corridor location, length and terminal proximity, the rebuild options listed below appear to be the most promising. Schematic diagrams and QV Curves of each option are also attached. It should be noted that Snoqualmie and Echo Lake refer to the same station east of Puget Sound and Naneum and Kittitas refer to the same station in the Ellensburg area. 100 figs., 20 tabs.

United States. Bonneville Power Administration.

1991-09-01T23:59:59.000Z

12

RELIABILITY IMPROVEMENT OF BART TRAIN CONTROL  

E-Print Network [OSTI]

it was a response to the reliability problems introduced by~atelyowned rights. RELIABILITY IMPROVEMENT OF BART VEHICLEtask group to improve the reliability of the Bay Area Rapid

Turner, D.B.

2011-01-01T23:59:59.000Z

13

Hawaii electric system reliability.  

SciTech Connect (OSTI)

This report addresses Hawaii electric system reliability issues; greater emphasis is placed on short-term reliability but resource adequacy is reviewed in reference to electric consumers' views of reliability %E2%80%9Cworth%E2%80%9D and the reserve capacity required to deliver that value. The report begins with a description of the Hawaii electric system to the extent permitted by publicly available data. Electrical engineering literature in the area of electric reliability is researched and briefly reviewed. North American Electric Reliability Corporation standards and measures for generation and transmission are reviewed and identified as to their appropriateness for various portions of the electric grid and for application in Hawaii. Analysis of frequency data supplied by the State of Hawaii Public Utilities Commission is presented together with comparison and contrast of performance of each of the systems for two years, 2010 and 2011. Literature tracing the development of reliability economics is reviewed and referenced. A method is explained for integrating system cost with outage cost to determine the optimal resource adequacy given customers' views of the value contributed by reliable electric supply. The report concludes with findings and recommendations for reliability in the State of Hawaii.

Silva Monroy, Cesar Augusto; Loose, Verne William

2012-09-01T23:59:59.000Z

14

AREA  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergy Cooperation |South Valley ResponsibleSubmissionofDepartmentNo.7-052 ofFocusAREA FAQ #

15

Electricity Reliability  

E-Print Network [OSTI]

Electricity Delivery and Energy Reliability High Temperature Superconductivity (HTS) Visualization in the future because they have virtually no resistance to electric current, offering the possibility of new electric power equipment with more energy efficiency and higher capacity than today's systems

16

Reliability Assessment The Reliability of the  

E-Print Network [OSTI]

2006 Long-Term Reliability Assessment The Reliability of the Bulk Power Systems In North America North American Electric Reliability Council October 2006 #12;TABLE OF CONTENTS Page 2 NERC 2006 Long-Term Reliability Assessment TABLE OF CONTENTS INTRODUCTION

17

Washington DC Reliability Requirements and the Need to Operate...  

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

Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005)...

18

Photovoltaics performance and reliability workshop  

SciTech Connect (OSTI)

This document consists of papers and viewgraphs compiled from the proceedings of a workshop held in September 1992. This workshop was the fifth in a series sponsored by NREL/DOE under the general subject areas of photovoltaic module testing and reliability. PV manufacturers, DOE laboratories, electric utilities and others exchanged technical knowledge and field experience. The topics of cell and module characterization, module and system performance, materials and module durability/reliability research, solar radiation, and applications are discussed.

Mrig, L. [ed.] [ed.

1992-11-01T23:59:59.000Z

19

Photovoltaics performance and reliability workshop  

SciTech Connect (OSTI)

This document consists of papers and viewgraphs compiled from the proceedings of a workshop held in September 1992. This workshop was the fifth in a series sponsored by NREL/DOE under the general subject areas of photovoltaic module testing and reliability. PV manufacturers, DOE laboratories, electric utilities and others exchanged technical knowledge and field experience. The topics of cell and module characterization, module and system performance, materials and module durability/reliability research, solar radiation, and applications are discussed.

Mrig, L. (ed.) [ed.

1992-01-01T23:59:59.000Z

20

Software Reliability Xiangyu Zhang  

E-Print Network [OSTI]

1 Software Reliability Xiangyu Zhang Pronounced as Shang You Zang CS590F Software Reliability Software Reliability Why Reliable Software is Important? Software bugs cost the U.S. economy about $59 in Spacecraft Accidents (http://sunnyday.mit.edu/papers/jsr.pdf) CS590F Software Reliability Why ? ­ FSE'06

Zhang, Xiangyu

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

SCALABLE RELIABLE MULTICAST IN WIDE AREA NETWORKS  

E-Print Network [OSTI]

Miki Yamamoto from Osaka University, Olov Schelen from Lulea University, Francesco v #12;LoPresti from

Kasera, Sneha Kumar

22

Logic Synthesis for FPGA Reliability  

E-Print Network [OSTI]

for FPGA Reliability . . . . . . . . . . . . . Hard ErrorsStochastic Resynthesis for FPGA Reliability . . . . . .In-Place Reconfiguration for FPGA Reliability . . . . . .

Feng, Zhe

2013-01-01T23:59:59.000Z

23

Thin Film Reliability SEMICONDUCTORS  

E-Print Network [OSTI]

Thin Film Reliability SEMICONDUCTORS Our goal is to develop new ways to evaluate the reliability $250 billion per year. As semiconductor devices become ultra miniaturized, reliability testing becomes-world conditions as possible will enable product designers to better balance performance and reliability

24

Reliability-Centered Maintenance  

Broader source: Energy.gov [DOE]

Reliability-centered maintenance leverages the same practices and technologies of predictive maintenance.

25

North American Electric Reliability Corporation (NERC): Reliability...  

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

and winter and summer forecasts; monitors the bulk power systems; and educates, trains, and certifies industry personnel. North American Electric Reliability Corporation...

26

Power electronics reliability analysis.  

SciTech Connect (OSTI)

This report provides the DOE and industry with a general process for analyzing power electronics reliability. The analysis can help with understanding the main causes of failures, downtime, and cost and how to reduce them. One approach is to collect field maintenance data and use it directly to calculate reliability metrics related to each cause. Another approach is to model the functional structure of the equipment using a fault tree to derive system reliability from component reliability. Analysis of a fictitious device demonstrates the latter process. Optimization can use the resulting baseline model to decide how to improve reliability and/or lower costs. It is recommended that both electric utilities and equipment manufacturers make provisions to collect and share data in order to lay the groundwork for improving reliability into the future. Reliability analysis helps guide reliability improvements in hardware and software technology including condition monitoring and prognostics and health management.

Smith, Mark A.; Atcitty, Stanley

2009-12-01T23:59:59.000Z

27

Human Reliability Program Overview  

SciTech Connect (OSTI)

This presentation covers the high points of the Human Reliability Program, including certification/decertification, critical positions, due process, organizational structure, program components, personnel security, an overview of the US DOE reliability program, retirees and academia, and security program integration.

Bodin, Michael

2012-09-25T23:59:59.000Z

28

Human Reliability | ornl.gov  

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

Human Reliability SHARE Human Reliability The Structured Trusted Employee Program (STEP) Evaluation is an example of a method for identifying, assessing, and retaining reliable and...

29

Reliability Results of NERSC Systems  

E-Print Network [OSTI]

Reliability Results of NERSC Systems Akbar Mokhtarani,analysis of systems reliability and component failure rates,reported to operation. Reliability Data HPSS and the IBM SP

Mokhtarani, Akbar; Petascale Data Storage Institute (PDSI)

2008-01-01T23:59:59.000Z

30

Joint transmission system projects to improve system reliability  

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

County PUD, 425-783-8444 Joint transmission system projects to improve system reliability First major regional electric grid improvements in decades prepare the area for the...

31

Medical Aspects of Reliability  

SciTech Connect (OSTI)

This presentation covers the medical evaluation as part of a human reliability program, particularly the various medical qualifications and potential disqualifiers.

Atencio, Julian J.

2014-05-05T23:59:59.000Z

32

Medical Device Reliability BIOMATERIALS  

E-Print Network [OSTI]

NEMI Medical Electronics team to address short- and long-term reliability issues with medical devices. OurMedical Device Reliability BIOMATERIALS Our goal is to provide medical device manufacturers, and consistency of active implantable medical devices. These devices, including pacemakers, cardiac defibrillators

33

Photovoltaic system reliability  

SciTech Connect (OSTI)

This paper discusses the reliability of several photovoltaic projects including SMUD`s PV Pioneer project, various projects monitored by Ascension Technology, and the Colorado Parks project. System times-to-failure range from 1 to 16 years, and maintenance costs range from 1 to 16 cents per kilowatt-hour. Factors contributing to the reliability of these systems are discussed, and practices are recommended that can be applied to future projects. This paper also discusses the methodology used to collect and analyze PV system reliability data.

Maish, A.B.; Atcitty, C. [Sandia National Labs., NM (United States); Greenberg, D. [Ascension Technology, Inc., Lincoln Center, MA (United States)] [and others

1997-10-01T23:59:59.000Z

34

Reliability and Safety  

Broader source: Energy.gov [DOE]

DOE solar reliability and safety research and development (R&D) focuses on testing photovoltaic (PV) modules, inverters, and systems for long-term performance, and helping investors, consumers,...

35

Reliability Standards Owner  

Broader source: Energy.gov [DOE]

This position is located in the Internal Operations and Asset Management group of Planning and Asset Management (TP). A successful candidate in this position will serve as the Reliability Standards...

36

Parametric probability distributions in reliability  

E-Print Network [OSTI]

Parametric probability distributions in reliability F.P.A. Coolen Department of Mathematical parametric probability distributions which are frequently used in reliability. We present some main as models for specific reliability scenarios. Keywords: Binomial distribution, Exponential distribution

Coolen, Frank

37

Gearbox Reliability Collaborative Update (Presentation)  

SciTech Connect (OSTI)

This presentation was given at the Sandia Reliability Workshop in August 2013 and provides information on current statistics, a status update, next steps, and other reliability research and development activities related to the Gearbox Reliability Collaborative.

Sheng, S.

2013-10-01T23:59:59.000Z

38

Photovoltaic module reliability workshop  

SciTech Connect (OSTI)

The paper and presentations compiled in this volume form the Proceedings of the fourth in a series of Workshops sponsored by Solar Energy Research Institute (SERI/DOE) under the general theme of photovoltaic module reliability during the period 1986--1990. The reliability Photo Voltaic (PV) modules/systems is exceedingly important along with the initial cost and efficiency of modules if the PV technology has to make a major impact in the power generation market, and for it to compete with the conventional electricity producing technologies. The reliability of photovoltaic modules has progressed significantly in the last few years as evidenced by warranties available on commercial modules of as long as 12 years. However, there is still need for substantial research and testing required to improve module field reliability to levels of 30 years or more. Several small groups of researchers are involved in this research, development, and monitoring activity around the world. In the US, PV manufacturers, DOE laboratories, electric utilities and others are engaged in the photovoltaic reliability research and testing. This group of researchers and others interested in this field were brought together under SERI/DOE sponsorship to exchange the technical knowledge and field experience as related to current information in this important field. The papers presented here reflect this effort.

Mrig, L. (ed.)

1990-01-01T23:59:59.000Z

39

Increasing the Reliability of Reliability Jochen Brocker1,  

E-Print Network [OSTI]

Increasing the Reliability of Reliability Diagrams Jochen Br¨ocker1, and Leonard A. Smith1,2 1 University Oxford, UK Corresponding Author, cats@lse.ac.uk November 9, 2006 #12;Abstract The reliability are reliable. Further, an alternative presentation of the same information on probability paper easies

Stevenson, Paul

40

RELIABILITY PLANNING IN DISTRIBUTED ELECTRIC ENERGY SYSTEMS  

E-Print Network [OSTI]

RESILIENCE; OR RELIABILITY SENSITIVITy .. RiskReliability Planning: Preliminary Definitions.Dioision, Ext. 6782 Reliability Planning in Distributed

Kahn, E.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

North American Electric Reliability Corporation Interconnections...  

Office of Environmental Management (EM)

North American Electric Reliability Corporation Interconnections North American Electric Reliability Corporation Interconnections Map of the North American Electric Reliability...

42

Software Reliability Modeling James LEDOUX  

E-Print Network [OSTI]

Software Reliability Modeling James LEDOUX Centre de Math´ematiques INSA & IRMAR 20 Avenue des an overview of some aspects of Software Reliability (SR) engineering. Most systems are now driven by software in reliability engineering, particularly in terms of cost. But predicting software reliability is not easy

Paris-Sud XI, Université de

43

Reliability of Electrical Interconnects (Presentation)  

SciTech Connect (OSTI)

This presentation discusses the status of NREL's research on the reliability of electrical interconnects.

Devoto, D.

2014-06-01T23:59:59.000Z

44

Human Reliability Program Workshop  

SciTech Connect (OSTI)

A Human Reliability Program (HRP) is designed to protect national security as well as worker and public safety by continuously evaluating the reliability of those who have access to sensitive materials, facilities, and programs. Some elements of a site HRP include systematic (1) supervisory reviews, (2) medical and psychological assessments, (3) management evaluations, (4) personnel security reviews, and (4) training of HRP staff and critical positions. Over the years of implementing an HRP, the Department of Energy (DOE) has faced various challenges and overcome obstacles. During this 4-day activity, participants will examine programs that mitigate threats to nuclear security and the insider threat to include HRP, Nuclear Security Culture (NSC) Enhancement, and Employee Assistance Programs. The focus will be to develop an understanding of the need for a systematic HRP and to discuss challenges and best practices associated with mitigating the insider threat.

Landers, John; Rogers, Erin; Gerke, Gretchen

2014-05-18T23:59:59.000Z

45

Reliable solar: powering communities  

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

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

46

Measurement Practices for Reliability and Power Quality  

SciTech Connect (OSTI)

This report provides a distribution reliability measurement ''toolkit'' that is intended to be an asset to regulators, utilities and power users. The metrics and standards discussed range from simple reliability, to power quality, to the new blend of reliability and power quality analysis that is now developing. This report was sponsored by the Office of Electric Transmission and Distribution, U.S. Department of Energy (DOE). Inconsistencies presently exist in commonly agreed-upon practices for measuring the reliability of the distribution systems. However, efforts are being made by a number of organizations to develop solutions. In addition, there is growing interest in methods or standards for measuring power quality, and in defining power quality levels that are acceptable to various industries or user groups. The problems and solutions vary widely among geographic areas and among large investor-owned utilities, rural cooperatives, and municipal utilities; but there is still a great degree of commonality. Industry organizations such as the National Rural Electric Cooperative Association (NRECA), the Electric Power Research Institute (EPRI), the American Public Power Association (APPA), and the Institute of Electrical and Electronics Engineers (IEEE) have made tremendous strides in preparing self-assessment templates, optimization guides, diagnostic techniques, and better definitions of reliability and power quality measures. In addition, public utility commissions have developed codes and methods for assessing performance that consider local needs. There is considerable overlap among these various organizations, and we see real opportunity and value in sharing these methods, guides, and standards in this report. This report provides a ''toolkit'' containing synopses of noteworthy reliability measurement practices. The toolkit has been developed to address the interests of three groups: electric power users, utilities, and regulators. The report will also serve to support activities to develop and share information among industry and regulatory participants about critical resources and practices. The toolkit has been developed by investigating the status of indices and definitions, surveying utility organizations on information sharing, and preparing summaries of reliability standards and monitoring requirements--the issues, needs, work under way, existing standards, practices and guidelines--for the following three classifications: (1) terms and definitions of reliability; (2) power quality standards, guidelines, and measurements; and (3) activities and organizations developing and sharing information on distribution reliability. As these synopses of reliability measurement practices are provided, it must be noted that an economic penalty may be associated with requiring too high a reliability level from the distribution system for all customers. It may be appropriate for the distribution system to supply only some base, generally accepted level of reliability. This base level would be adequate for the majority of customers. Users who need a higher level may find it economical to supply using distributed energy resources (DER) and other local solutions to reliability and power quality needs. Local solutions implemented by the customer may be the most cost-effective method for addressing the more stringent needs of a digital economy. These local solutions include energy storage, small distributed generators, and microgrids. This report also considers the market's role in addressing reliability issues and requirements. The customer's needs are discussed in view of issues such as power quality requirements of digital electronic equipment, the cost of outages, the cost of storage and new infrastructure, and natural gas prices. The market role in addressing these issues and requirements is explored. The economic considerations associated with the reliability issues are discussed, as well as the levels at which these economic decisions could be made. Finally, a discussion is provided of the role DER could play in addressing

Kueck, JD

2005-05-06T23:59:59.000Z

47

ARMY VEHICLE DURABILITY OPTIMIZATION & RELIABILITY  

E-Print Network [OSTI]

ARMY VEHICLE DURABILITY OPTIMIZATION & RELIABILITY How to Optimize the Vehicle Design to Minimize/Reduce the Weight? Under These Uncertainties, How to Achieve Component Level Reliability? Under These Uncertainties, How to Achieve System Level Reliability? Dynamics Analysis FE Model System Model Dynamic Stress

Kusiak, Andrew

48

FIELD RELIABILITY OF ELECTRONIC SYSTEMS  

E-Print Network [OSTI]

I Ww i 1 i FIELD RELIABILITY OF ELECTRONIC SYSTEMS wcwotoias R I S 0 - M - 2 4 1 8 An analytical study of in-the fiald axparlanca of electronics reliability Tag© Elm Rise National Laboratory, DK-4000 Roskilde, Denmark February 1 0 8 4 #12;RIS�-M-2418 FIELD RELIABILITY OP ELECTRONIC SYSTEMS An analytical

49

Reliability onMultilayerModels  

E-Print Network [OSTI]

Network Reliability Analysis Based onMultilayerModels László Jereb, Péter Bajor, Attila Kiss a reliability analysis approach which is based on the multilayer model of the telecommunication network. Simple two­state reliability models are assigned to the network elements making it possible to describe

László, Jereb

50

Testing for PV Reliability (Presentation)  

SciTech Connect (OSTI)

The DOE SUNSHOT workshop is seeking input from the community about PV reliability and how the DOE might address gaps in understanding. This presentation describes the types of testing that are needed for PV reliability and introduces a discussion to identify gaps in our understanding of PV reliability testing.

Kurtz, S.; Bansal, S.

2014-09-01T23:59:59.000Z

51

Maximal Reliability for Unit-weighted Composites  

E-Print Network [OSTI]

precisely measure scale reliability. In H. Yanai, A. Okada,A useful indicator of reliability? Personality & IndividualJ. M. F. (2000). Linking reliability and factor analysis:

Peter M. Bentler

2011-01-01T23:59:59.000Z

52

Microgrids and Heterogeneous Power Quality and Reliability  

E-Print Network [OSTI]

high security, quality, reliability, and availability”, IEEELave, and Marija Ilic: “Creating Reliability Choice: HowBuilding Less Reliability into Electric Power Grids Could

Marnay, Chris

2008-01-01T23:59:59.000Z

53

Power Reliability at BASF Corporation  

E-Print Network [OSTI]

Power Reliability at BASF Corporation Thomas R. Theising Energy Systems Manager BASF Corporation ABSTRACT: Quality is defined not as what the supplier puts into the product but what the customer gets out and is willing to pay for. Power... of overcoming these problems. The approach of addressing the reliability of its utility systems is common within BASF. This paper will address one of BASF?s approaches to addressing Power Reliability. PROBLEM RECOGNITION: The first issue to address...

Theising, T. R.

2011-01-01T23:59:59.000Z

54

Power Reliability at BASF Corporation  

E-Print Network [OSTI]

Power Reliability at BASF Corporation Thomas R. Theising Energy Systems Manager BASF Corporation ABSTRACT: Quality is defined not as what the supplier puts into the product but what the customer gets out and is willing to pay for. Power... of overcoming these problems. The approach of addressing the reliability of its utility systems is common within BASF. This paper will address one of BASF?s approaches to addressing Power Reliability. PROBLEM RECOGNITION: The first issue to address...

Theising, T. R.

2012-01-01T23:59:59.000Z

55

CSD Safety and Reliability Data  

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

Reliability Data Forecourt CSD Workshop Argonne National Laboratory Kevin Harrison 20-Mar-2013 2 Approach - Composite Data Products CDPs DDPs Results Internal analysis completed...

56

NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance...  

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

NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report The following information...

57

Applying Reliability Models to the Space Shuttle  

E-Print Network [OSTI]

Applying Reliability Models to the Space Shuttle Norman F. Schneidewind Ted W. Keller #12;What are Reliability Models? Reliability Models are tools that Help Us: · Predict software Reliability. · Control software Reliability. · Assess software Reliability. This functions let an organization determine

Feitelson, Dror

58

FORMAL SEMANTICS AND VERIFICATION OF DYNAMIC RELIABILITY BLOCK DIAGRAMS FOR SYSTEM RELIABILITY MODELING  

E-Print Network [OSTI]

FORMAL SEMANTICS AND VERIFICATION OF DYNAMIC RELIABILITY BLOCK DIAGRAMS FOR SYSTEM RELIABILITY captured by existing reliability modeling tools. In this paper, we introduce a new reliability modeling tool, called dynamic reliability block diagrams (DRBD), for modeling dynamic relationships between

Xu, Haiping

59

Photovoltaic performance and reliability workshop  

SciTech Connect (OSTI)

This workshop was the sixth in a series of workshops sponsored by NREL/DOE under the general subject of photovoltaic testing and reliability during the period 1986--1993. PV performance and PV reliability are at least as important as PV cost, if not more. In the US, PV manufacturers, DOE laboratories, electric utilities, and others are engaged in the photovoltaic reliability research and testing. This group of researchers and others interested in the field were brought together to exchange the technical knowledge and field experience as related to current information in this evolving field of PV reliability. The papers presented here reflect this effort since the last workshop held in September, 1992. The topics covered include: cell and module characterization, module and system testing, durability and reliability, system field experience, and standards and codes.

Mrig, L. [ed.

1993-12-01T23:59:59.000Z

60

Reliability assessment of a 1 MV LTD.  

SciTech Connect (OSTI)

A 1 MV linear transformer driver (LTD) is being tested with a large area e-beam diode load at Sandia National Laboratories (SNL). The experiments will be utilized to determine the repeatability of the output pulse and the reliability of the components. The 1 MV accelerator is being used to determine the feasibility of designing a 6 MV LTD for radiography experiments. The peak voltage, risetime, and pulse width as well as the cavity timing jitter are analyzed to determine the repeatability of the output pulse.

Portillo, Salvador; Chavez, Raymond (Ktech Corporation, Albuquerque, NM); Molina, Isidro; Kim, Alexandre A. (High Current Electronics Institute, Tomsk, Russia); Johnson, David L. (Titan Pulsed Sciences Division, San Leandro, CA); Maenchen, John Eric; Leckbee, Joshua J.; Ziska, Derek Raymond (Ktech Corporation, Albuquerque, NM)

2005-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Reliability Assessment Using Discriminative Sampling and Metamodeling  

E-Print Network [OSTI]

1 05M-400 Reliability Assessment Using Discriminative Sampling and Metamodeling G. Gary Wang Dept ABSTRACT Reliability assessment is the foundation for reliability engineering and reliability-based design optimization. It has been a difficult task, however, to perform both accurate and efficient reliability

Wang, Gaofeng Gary

62

Assessing reliability in energy supply systems  

E-Print Network [OSTI]

R.N. , 1984. Power-system reliability in perspective, in:L. (Eds. ), 1991. Applied Reliability Assessment in ElectricR. , Allan, R.N. , 1996. Reliability Evaluation of Power

McCarthy, Ryan W.; Ogden, Joan M.; Sperling, Daniel

2007-01-01T23:59:59.000Z

63

Reliability Assessment Incorporating Operational Considerations and Economic  

E-Print Network [OSTI]

PSERC Reliability Assessment Incorporating Operational Considerations and Economic Aspects Engineering Research Center Reliability Assessment Incorporating Operational Considerations and Economic Center (PSERC) research project titled "Reliability Assessment Incorporating Operational Considerations

64

Assessing Reliability in Energy Supply Systems  

E-Print Network [OSTI]

R.N. , 1984. Power-system reliability in perspective, in:L. (Eds. ), 1991. Applied Reliability Assessment in ElectricR. , Allan, R.N. , 1996. Reliability Evaluation of Power

McCarthy, Ryan; Ogden, Joan M.; Sperling, Dan

2008-01-01T23:59:59.000Z

65

Arnold Schwarzenegger REAL-TIME GRID RELIABILITY  

E-Print Network [OSTI]

Arnold Schwarzenegger Governor REAL-TIME GRID RELIABILITY MANAGEMENT California ISO Real Laboratory Consortium for Electric Reliability Technology Solutions APPENDIXC October 2008 CEC-500 (VSA) prototype to monitor system voltage conditions and provide real time dispatchers with reliability

66

Constructing Reliable Distributed Communication Systems with CORBA  

E-Print Network [OSTI]

Constructing Reliable Distributed Communication Systems with CORBA Silvano Maffeis Douglas C model to support reliable data- and process- oriented distributed systems that communicate through syn distributed object computing systems with CORBA. First, we examine the question of whether reliable applica

Schmidt, Douglas C.

67

NREL's Gearbox Reliability Collaborative leads to wind turbine gearbox reliability, lowering the cost of energy.  

E-Print Network [OSTI]

NREL's Gearbox Reliability Collaborative leads to wind turbine gearbox reliability, lowering operations. In 2007, the National Renewable Energy Laboratory (NREL) initi- ated the Gearbox Reliability that contribute to reduced gearbox reliability. In contrast to private investigations of these problems, GRC

68

Recommendations to Address Power Reliability Concerns Raised...  

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

to Address Power Reliability Concerns Raised as a Result of Pending Environmental Regulations for Electric Generation Stations Recommendations to Address Power Reliability Concerns...

69

Comments of North American Electric Reliability Corporation ...  

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

North American Electric Reliability Corporation (NERC) to DOE Smart Grid RFI: Addressing Policy and Logistical Challenges Comments of North American Electric Reliability...

70

NREL Publishes Gearbox Reliability Collaborative Findings Report...  

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

NREL Publishes Gearbox Reliability Collaborative Findings Report NREL Publishes Gearbox Reliability Collaborative Findings Report October 3, 2011 - 12:56pm Addthis This is an...

71

Sandia National Laboratories: Third Annual Continuous Reliability...  

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

ClimateECEnergyThird Annual Continuous Reliability Enhancement for Wind (CREW) Database Report Now Available Third Annual Continuous Reliability Enhancement for Wind (CREW)...

72

Funding Opportunity Announcement: PHYSICS OF RELIABILITY: EVALUATING...  

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

PHYSICS OF RELIABILITY: EVALUATING DESIGN INSIGHTS FOR COMPONENT TECHNOLOGIES IN SOLAR 2 (PREDICTS 2) Funding Opportunity Announcement: PHYSICS OF RELIABILITY: EVALUATING DESIGN...

73

Smart Grid Investments Improve Grid Reliability, Resilience,...  

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

Investments Improve Grid Reliability, Resilience, and Storm Responses (November 2014) Smart Grid Investments Improve Grid Reliability, Resilience, and Storm Responses (November...

74

Sandia National Laboratories: Continuous Reliability Enhancement...  

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

StandardsContinuous Reliability Enhancement for Wind (CREW) Database and Analysis Program Continuous Reliability Enhancement for Wind (CREW) Database and Analysis Program 2013 CREW...

75

Information Concerning Reliability Impacts under Various System...  

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

Concerning Reliability Impacts under Various System Configurations of the Mirant Potomac River Plant Information Concerning Reliability Impacts under Various System Configurations...

76

Thermoelectric Materials By Design: Mechanical Reliability (Agreement...  

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

By Design: Mechanical Reliability (Agreement 14957) Thermoelectric Materials By Design: Mechanical Reliability (Agreement 14957) Presentation from the U.S. DOE Office of Vehicle...

77

Distributed Generation Operational Reliability and Availability...  

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

Reliability and Availability Database, Final Report, January 2004 Distributed Generation Operational Reliability and Availability Database, Final Report, January 2004 This final...

78

Electricity Delivery and Energy Reliability PROGRAM DESCRIPTION  

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

32 Electricity Delivery and Energy Reliability PROGRAM DESCRIPTION The Office of Electricity Delivery and Energy Reliability (OE) leads national efforts to modernize the electric...

79

Electricity & Energy Reliability (WFP) | Department of Energy  

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

Electricity & Energy Reliability (WFP) Electricity & Energy Reliability (WFP) The purpose of the workforce Plan is to provide focus and direction to Human Resources (HR) strategy....

80

Program Areas  

Broader source: Energy.gov [DOE]

Geothermal energy—a relatively untapped domestic energy resource from the heat of the earth—represents a reliable and nearly inexhaustible energy source, with greatly reduced greenhouse gas...

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

TRAVEL DEMAND AND RELIABLE FORECASTS  

E-Print Network [OSTI]

TRAVEL DEMAND AND RELIABLE FORECASTS FOR TRANSIT MARK FILIPI, AICP PTP 23rd Annual Transportation transportation projects § Develop and maintain Regional Travel Demand Model § Develop forecast socio in cooperative review during all phases of travel demand forecasting 4 #12;Cooperative Review Should Include

Minnesota, University of

82

Ris-M-2584 RELIABILITY CALCULATIONS  

E-Print Network [OSTI]

Risø-M-2584 RELIABILITY CALCULATIONS Improvements of methods intended for calculation of reliability of structures and systems Kurt E. Petersen Abstract. Risk and reliability analysis is increasingly being used in evaluations of plant safety and plant reliability. The analysis can be performed either

83

Reliability Failure Mode, Effects, and Criticality Analysis  

E-Print Network [OSTI]

Reliability Failure Mode, Effects, and Criticality Analysis Addendum 1; HFE ~ ATM501 PAGE I I. Hiebert Reliability Engineer HFE · B-1 f #12;~~.~-~ -_ ~ ~ Reliability Failure Mode, Effects were slight adjustment in the linearizing resistors. The reliability is effected upward by the deletion

Rathbun, Julie A.

84

The design of a reliable reputation system  

E-Print Network [OSTI]

reliability by spreading its transactions evenly across all 20 peers in the system (shown by Distribution

Swamynathan, Gayatri; Almeroth, Kevin C.; Zhao, Ben Y.

2010-01-01T23:59:59.000Z

85

NREL: Performance and Reliability R&D - Photovoltaic Reliability  

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

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

86

Adhesion and Thin-Film Module Reliability  

SciTech Connect (OSTI)

Among the infrequently measured but essential properties for thin-film (T-F) module reliability are the interlayer adhesion and cohesion within a layer. These can be cell contact layers to glass, contact layers to the semiconductor, encapsulant to cell, glass, or backsheet, etc. We use an Instron mechanical testing unit to measure peel strengths at 90deg or 180deg and, in some cases, a scratch and tape pull test to evaluate inter-cell layer adhesion strengths. We present peel strength data for test specimens laminated from the three T-F technologies, before and after damp heat, and in one instance at elevated temperatures. On laminated T-F cell samples, failure can occur uniformly at any one of the many interfaces, or non-uniformly across the peel area at more than one interface. Some peel strengths are Lt1 N/mm. This is far below the normal ethylene vinyl acetate/glass interface values of >10 N/mm. We measure a wide range of adhesion strengths and suggest that adhesion measured under higher temperature and relative humidity conditions is more relevant for module reliability.

McMahon, T. J.; Jorgenson, G. J.

2006-01-01T23:59:59.000Z

87

Radioisotope thermoelectric generator reliability and safety  

SciTech Connect (OSTI)

There are numerous occasions when a planetary mission requires energy in remote areas of the solar system. Anytime power is required much beyond Mars or the Asteroid Belts, solar power is not an option. The radioisotope thermoelectric generator (RTG) was developed for such a mission requirement. It is a relatively small and lightweight power source that can produce power under adverse conditions. Just this type of source has become the backbone of the power system for far outer plant exploration. Voyagers I and II are utilizing RTGs, which will soon power the Galileo spacecraft to Jupiter and the Ulysses spacecraft to study the solar poles. The paper discusses RTG operation including thermoelectric design, converter design, general-purpose heat source; RTG reliability including design, testing, experience, and launch approval; and RTG safety issues and methods of ensuring safety.

Campbell, R.; Klein, J.

1989-01-01T23:59:59.000Z

88

Gearbox Reliability Collaborative Bearing Calibration  

SciTech Connect (OSTI)

NREL has initiated the Gearbox Reliability Collaborative (GRC) to investigate the root cause of the low wind turbine gearbox reliability. The GRC follows a multi-pronged approach based on a collaborative of manufacturers, owners, researchers and consultants. The project combines analysis, field testing, dynamometer testing, condition monitoring, and the development and population of a gearbox failure database. At the core of the project are two 750kW gearboxes that have been redesigned and rebuilt so that they are representative of the multi-megawatt gearbox topology currently used in the industry. These gearboxes are heavily instrumented and are tested in the field and on the dynamometer. This report discusses the bearing calibrations of the gearboxes.

van Dam, J.

2011-10-01T23:59:59.000Z

89

The Materials Reliability Division has established several capabilities for analyzing the reliability of  

E-Print Network [OSTI]

The Materials Reliability Division has established several capabilities for analyzing the reliability of small scale structures, including a number of custom instruments developed specifically@boulder.nist.gov FACILITIES Measurement Facilities: Small-Scale Mechanical Reliability Materials Science and Engineering

90

Microgrids and Heterogeneous Security, Quality, Reliability, and Availability  

E-Print Network [OSTI]

and Energy Reliability, Distribution System Integrationand Energy Reliability, Distribution System Integration

Marnay, Chris

2007-01-01T23:59:59.000Z

91

Sandia National Laboratories: Inverter Reliability  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLS Exhibit atVehicleEnergyPolydotsMicroReliability 2013

92

Reliability Challenges for Solar Energy (Presentation)  

SciTech Connect (OSTI)

Presentation that reviews reliability issues related to various types of photovoltaic tecnnologies, including crystalline silicon, thin films, and concentrating PV.

Kurtz, S.

2009-12-08T23:59:59.000Z

93

LUNAR MASS SPECTROMETER RELIABILITY LOGIC DIAGRAM  

E-Print Network [OSTI]

point (A) to (F). The block diagram also defines the reliability functions for the purpose of FMEA 1

Rathbun, Julie A.

94

Full-scale tests help improve reliability of DST tools  

SciTech Connect (OSTI)

A joint-industry project set up procedures and full scale tests to determine the reliability and integrity of drill stem test (DST) tools for use in difficult high pressure, high temperature wells. These DST tool tests helped determine changes needed to address reliability in high pressure, high temperature (HPHT) conditions and has demonstrated that DST tools could maintain integrity in this type of environment. Eleven major operators and service/testing companies in the Norway/U.K. area undertook a joint industry study to address these problems and to determine methods to increase the reliability of DST operations in HPHT well testing. Emphasis was placed on the selection of the downhole equipment used for the HPHT drill stem tests and design of the full scale testing of the North-Sea-area field tools in use. Additionally, an investigation was to be made to establish methods that could be used to verify and increase equipment reliability. The project also included design parameters for contingency conditions that were not normally present during equipment operations but could exist in emergency situations. Eleven tools, including tester valves, multiple-cycle circulating valves, bypass valves, and safety/circulating valves, from different service company/suppliers were rigorously tested. The paper describes the project, the tools tested, test methods, and results.

Ringgenberg, P. [Halliburton Energy Services, Dallas, TX (United States); Self, J.C. [Statoil, Stavanger (Norway)

1996-08-05T23:59:59.000Z

95

SOFTWARE RELIABILITY SIMULATION Robert C. Tausworthe  

E-Print Network [OSTI]

CHAPTER 16 SOFTWARE RELIABILITY SIMULATION Robert C. Tausworthe Jet Propulsion Laboratory, together with their attributes and interrelationships, that are related to reliability 1 comprise what we here refer to as the reliability process. The artifacts of the software life cycle include doc­ uments

Lyu, Michael R.

96

Arnold Schwarzenegger REAL-TIME GRID RELIABILITY  

E-Print Network [OSTI]

Arnold Schwarzenegger Governor REAL-TIME GRID RELIABILITY MANAGEMENT Scoping Study Report Reliability Technology Solutions APPENDIXG October 2008 CEC-500-2008-049-APG #12;#12;Prepared By: Lawrence for Electric Reliability Technology Solutions and was funded by the California Energy Commission's Public

97

Network Reliability: Models, Measures and Analysis  

E-Print Network [OSTI]

Network Reliability: Models, Measures and Analysis #3; L.Jereb Department of Telecommunications y quality services when the network elements apt to random failures. Several network reliability models have of network reliability analysis and summarizes the critical issues. A possible solution taking into account

László, Jereb

98

Dispatcher Reliability Analysis : SPICA-RAIL Experiments  

E-Print Network [OSTI]

Dispatcher Reliability Analysis : SPICA-RAIL Experiments Fabien Belmonte, Jean-Louis Boulanger of scenarios and evaluate the behaviour of human operators. A state of the art in human reliability is pre coupled to a traffic simulator. It allows to gather data for human reliability evaluation and man

Paris-Sud XI, Université de

99

RELIABILITY-BASED CASTING PROCESS DESIGN OPTIMIZATION  

E-Print Network [OSTI]

RELIABILITY-BASED CASTING PROCESS DESIGN OPTIMIZATION Richard Hardin1 , K.K. Choi1 , and Christoph 52242-1527 Keywords: Casting Process Design, Optimization, Reliability-Based Design Optimization purpose reliability-based design optimization (RBDO) software tool previously developed at the University

Beckermann, Christoph

100

Reliability Prediction -Array D Redundant Command Receiver  

E-Print Network [OSTI]

Reliability Prediction - Array D Redundant Command Receiver ATM 981 I PAGI 1 OP 16 DATE 26 Feb. 1971 This Reliability Prediction was prepared by Motorola's Government Electronics Division as required combiner· .. There was a reliability design goal of · 998 for a two-year mission on the ... lunar surface

Rathbun, Julie A.

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Arnold Schwarzenegger REAL-TIME GRID RELIABILITY  

E-Print Network [OSTI]

Arnold Schwarzenegger Governor REAL-TIME GRID RELIABILITY MANAGEMENT Prototype Phasor-Based Real Reliability Technology Solutions APPENDIXE October 2008 CEC-500-2008-049-APE #12;#12;Prepared By: Lawrence in this report. #12;Slide 0 Consortium for Electric Reliability Technology Solutions Real-Time Dynamics

102

Reliability Analysis of Microelectronic Components and Materials  

E-Print Network [OSTI]

1 Reliability Analysis of Microelectronic Components and Materials Increasing numbers of the degradation processes relevant to soldered joints is crucial for more reliable life-cycle predictions. Joining methods are critical for the reliable use of electronic packages. In particular, since the advent

Berlin,Technische Universität

103

Transductive Reliability Estimation for Kernel Based Classifiers  

E-Print Network [OSTI]

Transductive Reliability Estimation for Kernel Based Classifiers Dimitris Tzikas1 , Matjaz Kukar2@cs.uoi.gr Abstract. Estimating the reliability of individual classifications is very important in several applications such as medical diagnosis. Recently, the transductive approach to reliability estimation has been

Likas, Aristidis

104

Reliability Meets Big Data: Opportunities and Challenges  

E-Print Network [OSTI]

Reliability Meets Big Data: Opportunities and Challenges William Q. Meeker Department of Statistics, 2013 Abstract Reliability field data such as that obtained from warranty claims and maintenance records products, the nature of field reliability data is changing dramatically. In particular, products can

105

Arnold Schwarzenegger REAL-TIME GRID RELIABILITY  

E-Print Network [OSTI]

Arnold Schwarzenegger Governor REAL-TIME GRID RELIABILITY MANAGEMENT Prototype Phasor-Based Real Research Program Prepared By: Lawrence Berkeley National Laboratory Consortium for Electric Reliability in this report. #12;#12;USER GUIDE Version 3 August 2005 Prepared by: for Consortium for Electric Reliability

106

RELIABILITY IN PERSONAL POSITIONING Heidi Kuusniemi1*  

E-Print Network [OSTI]

RELIABILITY IN PERSONAL POSITIONING Heidi Kuusniemi1* , GĂ©rard Lachapelle2 , Jarmo Takala1 1 interference effects lead to measurement errors, and reliability monitoring in terms of proper fault detection in future new possibilities to provide integrity and reliability information to the user both at signal

Calgary, University of

107

RELIABILITY ENGINEERING: OLD PROBLEMS AND NEW CHALLENGES  

E-Print Network [OSTI]

1 RELIABILITY ENGINEERING: OLD PROBLEMS AND NEW CHALLENGES E. Zio Dept. of Energy, Polytechnic: enrico.zio@polimi.it Abstract The first recorded usage of the word reliability dates back to the 1800s, albeit referred to a person and not a technical system. Since then, the concept of reliability has become

Paris-Sud XI, Université de

108

The Whereabouts of Reliability Education: Challenges & Opportunities  

E-Print Network [OSTI]

. There is a gap between reliability theory and practice, between school and industry, book knowledge and real The probability that the system is still operating at time t. where f(t) probability density function h(t) failure changing and getting higher. #12;Some Reliability books in ... 1960s Igor Bazovsky (1961), Reliability

Bernstein, Joseph B.

109

Review of Quantitative Software Reliability Methods  

SciTech Connect (OSTI)

The current U.S. Nuclear Regulatory Commission (NRC) licensing process for digital systems rests on deterministic engineering criteria. In its 1995 probabilistic risk assessment (PRA) policy statement, the Commission encouraged the use of PRA technology in all regulatory matters to the extent supported by the state-of-the-art in PRA methods and data. Although many activities have been completed in the area of risk-informed regulation, the risk-informed analysis process for digital systems has not yet been satisfactorily developed. Since digital instrumentation and control (I&C) systems are expected to play an increasingly important role in nuclear power plant (NPP) safety, the NRC established a digital system research plan that defines a coherent set of research programs to support its regulatory needs. One of the research programs included in the NRC's digital system research plan addresses risk assessment methods and data for digital systems. Digital I&C systems have some unique characteristics, such as using software, and may have different failure causes and/or modes than analog I&C systems; hence, their incorporation into NPP PRAs entails special challenges. The objective of the NRC's digital system risk research is to identify and develop methods, analytical tools, and regulatory guidance for (1) including models of digital systems into NPP PRAs, and (2) using information on the risks of digital systems to support the NRC's risk-informed licensing and oversight activities. For several years, Brookhaven National Laboratory (BNL) has worked on NRC projects to investigate methods and tools for the probabilistic modeling of digital systems, as documented mainly in NUREG/CR-6962 and NUREG/CR-6997. However, the scope of this research principally focused on hardware failures, with limited reviews of software failure experience and software reliability methods. NRC also sponsored research at the Ohio State University investigating the modeling of digital systems using dynamic PRA methods. These efforts, documented in NUREG/CR-6901, NUREG/CR-6942, and NUREG/CR-6985, included a functional representation of the system's software but did not explicitly address failure modes caused by software defects or by inadequate design requirements. An important identified research need is to establish a commonly accepted basis for incorporating the behavior of software into digital I&C system reliability models for use in PRAs. To address this need, BNL is exploring the inclusion of software failures into the reliability models of digital I&C systems, such that their contribution to the risk of the associated NPP can be assessed.

Chu, T.L.; Yue, M.; Martinez-Guridi, M.; Lehner, J.

2010-09-17T23:59:59.000Z

110

Can Software Reliability Outperform Hardware Reliability in High-Performance Interconnects?  

E-Print Network [OSTI]

Can Software Reliability Outperform Hardware Reliability in High-Performance Interconnects? A Case, Myrinet, InfiniBand, and others HPC networks are generally quite reliable without additional protocols link With this in mind, how should reliability be implemented? 3 #12;Onload or Offload? Some networks

Panda, Dhabaleswar K.

111

Reliable computation of homogeneous azeotropes  

SciTech Connect (OSTI)

It is important to determine the existence and composition of homogeneous azeotropes in the analysis of phase behavior and in the synthesis and design of separation systems, from both theoretical and practical standpoints. A new method for reliably locating any and all homogeneous azeotropes for multicomponent mixtures is presented. The method also verifies the nonexistence of homogeneous azeotropes if none are present. The method is based on interval analysis, in particular an interval-Newton/generalized-bisection-algorithm providing a mathematical and computational guarantee that all azeotropes are located. This general-purpose technique can be applied in connection with any thermodynamic models. The technique is illustrated in several example problems using the Wilson, NRTL, and UNIQUAC activity-coefficient models.

Maier, R.W.; Brennecke, J.F.; Stadtherr, M.A. [Univ. of Notre Dame, IN (United States). Dept. of Chemical Engineering] [Univ. of Notre Dame, IN (United States). Dept. of Chemical Engineering

1998-08-01T23:59:59.000Z

112

Manufacturing Metrology for c-Si Module Reliability/Durabiltiy...  

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

Manufacturing Metrology for c-Si Module ReliabilityDurabiltiy Manufacturing Metrology for c-Si Module ReliabilityDurabiltiy Presented at the PV Module Reliability Workshop,...

113

Insulator damage endangers public, power reliability; ratepayers...  

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

Insulator-damage-endangers-public-power-reliability-ratepayers-foot-repair-bill Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us...

114

General Order Ensuring Reliable Electric Service (Louisiana)  

Broader source: Energy.gov [DOE]

The standards set forth herein have been developed to provide consumers, the Louisiana Public Service Commission, and jurisdictional electric utilities with a uniform method of ensuring reliable...

115

Mechanical Reliability of Piezo-Stack Actuators  

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

Review Guidelines Mechanical Reliability of Piezo-Stack Actuators (Agreement 13329) Andrew A. Wereszczak, Hong Wang, and Hua-Tay Lin Oak Ridge National Laboratory Oak Ridge, TN...

116

Improving Wind Turbine Gearbox Reliability: Preprint  

SciTech Connect (OSTI)

This paper describes a new research and development initiative to improve gearbox reliability in wind turbines begun at the National Renewable Energy Laboratory (NREL) in Golden, Colorado, USA.

Musial, W.; Butterfield, S.; McNiff, B.

2007-06-01T23:59:59.000Z

117

Power as a function of reliability  

SciTech Connect (OSTI)

Many studies employ multiple measurement instruments such as human raters, observers, judges, or mechanical gauges to record subject data. It is well known that the consistency of these instruments, commonly called rater reliability, limits the extent to which conclusions should be drawn from the observed data. However, the degree to which rater reliability limits conclusions has traditionally been assessed in only subjective manners. In this paper, a method is developed for objectively quantifying the impact of rate reliability on the statistical analysis of data from a commonly used collection scheme. This method allows the inclusion of a reliability index in statistical power calculations and is an invaluable tool in the planning of experiments.

Abate, M.L. [Sandia National Labs., Albuquerque, NM (United States); McCabe, G.P.; Lynch, M.P. [Purdue Univ., Lafayette, IN (United States)

1995-10-01T23:59:59.000Z

118

Reliability Module By: Alex Miller and Mark Robinson  

E-Print Network [OSTI]

Reliability Module By: Alex Miller and Mark Robinson Material Summarized from Reliability Module://spacese.spacegrant.org/). #12;Key Concepts Understanding the importance of reliability as an engineering discipline to calculate reliability Mathematically Visually (block diagrams) Source: Exploration Systems Engineering

Rhoads, James

119

Fundamental mechanisms of micromachine reliability  

SciTech Connect (OSTI)

Due to extreme surface to volume ratios, adhesion and friction are critical properties for reliability of Microelectromechanical Systems (MEMS), but are not well understood. In this LDRD the authors established test structures, metrology and numerical modeling to conduct studies on adhesion and friction in MEMS. They then concentrated on measuring the effect of environment on MEMS adhesion. Polycrystalline silicon (polysilicon) is the primary material of interest in MEMS because of its integrated circuit process compatibility, low stress, high strength and conformal deposition nature. A plethora of useful micromachined device concepts have been demonstrated using Sandia National Laboratories' sophisticated in-house capabilities. One drawback to polysilicon is that in air the surface oxidizes, is high energy and is hydrophilic (i.e., it wets easily). This can lead to catastrophic failure because surface forces can cause MEMS parts that are brought into contact to adhere rather than perform their intended function. A fundamental concern is how environmental constituents such as water will affect adhesion energies in MEMS. The authors first demonstrated an accurate method to measure adhesion as reported in Chapter 1. In Chapter 2 through 5, they then studied the effect of water on adhesion depending on the surface condition (hydrophilic or hydrophobic). As described in Chapter 2, they find that adhesion energy of hydrophilic MEMS surfaces is high and increases exponentially with relative humidity (RH). Surface roughness is the controlling mechanism for this relationship. Adhesion can be reduced by several orders of magnitude by silane coupling agents applied via solution processing. They decrease the surface energy and render the surface hydrophobic (i.e. does not wet easily). However, only a molecular monolayer coats the surface. In Chapters 3-5 the authors map out the extent to which the monolayer reduces adhesion versus RH. They find that adhesion is independent of RH up to a threshold value, depending on the coating chemistry. The mechanism for the adhesion increase beyond this threshold value is that the coupling agent reconfigures from a surface to a bulk phase (Chapter 3). To investigate the details of how the adhesion increase occurs, the authors developed the mechanics for adhesion hysteresis measurements. These revealed that near-crack tip compression is the underlying cause of the adhesion increase (Chapter 4). A vacuum deposition chamber for silane coupling agent deposition was constructed. Results indicate that vapor deposited coatings are less susceptible to degradation at high RH (Chapter 5). To address issues relating to surfaces in relative motion, a new test structure to measure friction was developed. In contrast to other surface micromachined friction test structures, uniform apparent pressure is applied in the frictional contact zone (Chapter 6). The test structure will enable friction studies over a large pressure and dynamic range. In this LDRD project, the authors established an infrastructure for MEMS adhesion and friction metrology. They then characterized in detail the performance of hydrophilic and hydrophobic films under humid conditions, and determined mechanisms which limit this performance. These studies contribute to a fundamental understanding for MEMS reliability design rules. They also provide valuable data for MEMS packaging requirements.

DE BOER,MAARTEN P.; SNIEGOWSKI,JEFFRY J.; KNAPP,JAMES A.; REDMOND,JAMES M.; MICHALSKE,TERRY A.; MAYER,THOMAS K.

2000-01-01T23:59:59.000Z

120

PV Performance and Reliability Validation Capabilities at Sandia...  

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

Performance and Reliability Validation Capabilities at Sandia National Laboratories PV Performance and Reliability Validation Capabilities at Sandia National Laboratories This...

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Issues in benchmarking human reliability analysis methods : a literature review.  

SciTech Connect (OSTI)

There is a diversity of human reliability analysis (HRA) methods available for use in assessing human performance within probabilistic risk assessment (PRA). Due to the significant differences in the methods, including the scope, approach, and underlying models, there is a need for an empirical comparison investigating the validity and reliability of the methods. To accomplish this empirical comparison, a benchmarking study is currently underway that compares HRA methods with each other and against operator performance in simulator studies. In order to account for as many effects as possible in the construction of this benchmarking study, a literature review was conducted, reviewing past benchmarking studies in the areas of psychology and risk assessment. A number of lessons learned through these studies are presented in order to aid in the design of future HRA benchmarking endeavors.

Lois, Erasmia (US Nuclear Regulatory Commission); Forester, John Alan; Tran, Tuan Q. (Idaho National Laboratory, Idaho Falls, ID); Hendrickson, Stacey M. Langfitt; Boring, Ronald L. (Idaho National Laboratory, Idaho Falls, ID)

2008-04-01T23:59:59.000Z

122

Reliability Meets Big Data: Opportunities and Challenges  

E-Print Network [OSTI]

products, the nature of field reliability data is changing dramatically. In particular, products can 1, 2013 Abstract Reliability field data such as that obtained from warranty claims and maintenance, however, many other potential applications for using such data. In this paper we review some applications

McCalley, James D.

123

Demand Response and Electric Grid Reliability  

E-Print Network [OSTI]

Demand Response and Electric Grid Reliability Paul Wattles Senior Analyst, Market Design & Development, ERCOT CATEE Conference, Galveston October 10, 2012 2 North American Bulk Power Grids CATEE Conference October 10, 2012 ? The ERCOT... adequacy ? ?Achieving more DR participation would . . . displace some generation investments, but would achieve the same level of reliability... ? ?Achieving this ideal requires widespread demand response and market structures that enable loads...

Wattles, P.

2012-01-01T23:59:59.000Z

124

Engineering Reliability into Web Sites: Google SRE  

E-Print Network [OSTI]

Engineering Reliability into Web Sites: Google SRE Alex Perry alex.perry@google.com Santa Monica SRE, Google #12;Abstract This talk introduces Site Reliability Engineering (SRE) at Google, explaining team responsibilities by site Failures and instability consuming manpower Engineering being applied

Tomkins, Andrew

125

Reliable Distributed Computing for Decision Support Systems  

E-Print Network [OSTI]

Reliable Distributed Computing for Decision Support Systems Taha Osman, Andrzej Bargiela Department of application tasks on the currently avail- able computing nodes. Distributed Systems Reliability Due decision-support systems such as water distribution net- works, involving hundreds or even thousands

Bargiela, Andrzej

126

Data Communication Principles Reliable Data Transfer  

E-Print Network [OSTI]

Principles Switching Reliable Data Transfer Data Rate of a Communication Channel Transmission Media Data Principles Switching Reliable Data Transfer Data Rate of a Communication Channel Transmission Media Data Transmission Fiber vs Copper Wire Weight vs bandwidth Cost Security 11 / 52 #12;Data Communication Principles

Ramkumar, Mahalingam

127

Wind Energy Facility Reliability and Maintenance  

E-Print Network [OSTI]

Wind Energy Facility Reliability and Maintenance Eunshin Byon, Lewis Ntaimo, Chanan Singh and Yu related to wind energy facility reliability and mainte- nance focused more on qualitative aspects. In this chapter, we provide a comprehensive account of the existing research regarding wind energy facility

Ding, Yu

128

POWER GRID RELIABILITY AND SECURITY  

SciTech Connect (OSTI)

This project has led to the development of a real-time simulation platform for electric power grids called Grid Simulator or GridSim for simulating the dynamic and information network interactions of large- scale power systems. The platform consists of physical models of power system components including synchronous generators, loads and control, which are simulated using a modified commercial power simulator namely Transient Stability Analysis Tool (TSAT) [1] together with data cleanup components, as well as an emulated substation level and wide-area power analysis components. The platform also includes realistic representations of communication network middleware that can emulate the real-time information flow back and forth between substations and control centers in wide-area power systems. The platform has been validated on a realistic 6000-bus model of the western American power system. The simulator GridSim developed in this project is the first of its kind in its ability to simulate real-time response of large-scale power grids, and serves as a cost effective real-time stability and control simulation platform for power industry.

Bose, Anjan; Venkatasubramanian, Vaithianathan; Hauser, Carl; Bakken, David; Anderson, David; Zhao, Chuanlin; Liu, Dong; Yang, Tao; Meng, Ming; Zhang, Lin; Ning, Jiawei; Tashman, Zaid

2014-09-30T23:59:59.000Z

129

OPTIMAL RELIABILITY ALLOCATION IN SERIES-PARALLEL SYSTEMS FROM COMPONENTS' DISCRETE COST -RELIABILITY DATA SETS  

E-Print Network [OSTI]

OPTIMAL RELIABILITY ALLOCATION IN SERIES-PARALLEL SYSTEMS FROM COMPONENTS' DISCRETE COST - RELIABILITY DATA SETS: A NESTED SIMULATED ANNEALING APPROACH Subba Rao V. Majety# , Srikanth It is generally accepted that a component's cost is an increasing function of its reliability. Most researchers

Smith, Alice E.

130

Accepted for publication in Reliability Engineering and System Safety Analyzing the topological, electrical and reliability  

E-Print Network [OSTI]

Accepted for publication in Reliability Engineering and System Safety Analyzing the topological, electrical and reliability characteristics of a power transmission system for identifying its critical of the system the reliability and electrical characteristics of its components. In each phase of the analysis: i

Paris-Sud XI, Université de

131

Reliable and Semi-reliable Communication with Authentication in Mobile Ad Hoc Networks  

E-Print Network [OSTI]

Reliable and Semi-reliable Communication with Authentication in Mobile Ad Hoc Networks Falko of wireless ad hoc sensor networks is the error-proneness and, therefore, the unreliability of communication describe a new approach and an according protocol for usage in ad hoc networks that provides reliable

Breu, Ruth

132

Reliability and economy -- Hydro electricity for Iran  

SciTech Connect (OSTI)

Reliability is the probability that a device or system will perform its function adequately, for the period of time intended, under the operating conditions intended. Reliability and economy are two important factors in operating any system, especially in power generation. Due to the high rate in population growth in Iran, the experts have estimated that the demand for electricity will be about 63,000 MW in the next 25 years, the installed power is now about 26,000 MW. Therefore, the energy policy decision made in Iran is to go to power generation by hydroelectric plants because of reliability, availability of water resources and the economics of hydroelectric power.

Jahromi-Shirazi, M.J.; Zarbakhsh, M.H. [Teleh Shofage Co., Ghazvin (Iran, Islamic Republic of)

1998-12-31T23:59:59.000Z

133

Adaptive Reliability Analysis of Excavation Problems  

E-Print Network [OSTI]

. This analysis couples the adaptive design capabilities of the observational method with updated reliability indices, to be used in risk-based design decisions. A probabilistic framework is developed to predict three-dimensional deformation profiles due...

Park, Jun Kyung

2012-10-19T23:59:59.000Z

134

Reliability-Based Optimization Using Evolutionary Algorithms  

E-Print Network [OSTI]

Uncertainties in design variables and problem parameters are often inevitable and must be considered in an optimization task if reliable optimal solutions are sought. Besides a number of sampling techniques, there exist ...

Deb, Kalyanmoy

135

Photovoltaic Reliability and Engineering (Revised) (Fact Sheet)  

SciTech Connect (OSTI)

Capabilities fact sheet for the National Center for Photovoltaics: Photovoltaic Reliability and Engineering. One-sided sheet that includes Scope, Core Competencies and Capabilities, and Contact/Web information.

Not Available

2011-06-01T23:59:59.000Z

136

Sandia National Laboratories: Physics of Reliability: Evaluating...  

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

Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar program Sandia R&D Funded under New DOE SunShot Program On November 27, 2013, in Energy,...

137

Reliability Issues for Photovoltaic Modules (Presentation)  

SciTech Connect (OSTI)

Si modules good in field; new designs need reliability testing. CdTe & CIGS modules sensitive to moisture; carefully seal. CPV in product development stage; benefits from expertise in other industries.

Kurtz, S.

2009-10-01T23:59:59.000Z

138

PV Module Reliability Research (Fact Sheet)  

SciTech Connect (OSTI)

This National Center for Photovoltaics sheet describes the capabilities of its PV module reliability research. The scope and core competencies and capabilities are discussed and recent publications are listed.

Not Available

2013-06-01T23:59:59.000Z

139

Apply reliability centered maintenance to sealless pumps  

SciTech Connect (OSTI)

This paper reports on reliability centered maintenance (RCM) which is considered a crucial part of future reliability engineering. RCM determines the maintenance requirements of plants and equipment in their operating context. The RCM method has been applied to the management of critical sealless pumps in fire/toxic risk services, typical of the petrochemical industry. The method provides advantages from a detailed study of any critical engineering system. RCM is a team exercise and fosters team spirit in the plant environment. The maintenance strategy that evolves is based on team decisions and relies on maximizing the inherent reliability built into the equipment. RCM recommends design upgrades where this inherent reliability is being questioned. Sealless pumps of canned motor design are used as main reactor charge pumps in PVC plants. These pumps handle fresh vinyl chloride monomer (VCM), which is both carcinogenic and flammable.

Pradhan, S. (Exxon Chemicals Canada, Ontario (Canada))

1993-01-01T23:59:59.000Z

140

Demand Response For Power System Reliability: FAQ  

SciTech Connect (OSTI)

Demand response is the most underutilized power system reliability resource in North America. Technological advances now make it possible to tap this resource to both reduce costs and improve. Misconceptions concerning response capabilities tend to force loads to provide responses that they are less able to provide and often prohibit them from providing the most valuable reliability services. Fortunately this is beginning to change with some ISOs making more extensive use of load response. This report is structured as a series of short questions and answers that address load response capabilities and power system reliability needs. Its objective is to further the use of responsive load as a bulk power system reliability resource in providing the fastest and most valuable ancillary services.

Kirby, Brendan J [ORNL

2006-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Reliability of copper interconnects in integrated circuits  

E-Print Network [OSTI]

As dimensions shrink and current densities increase, the reliability of metal interconnects becomes a serious concern. In copper interconnects, the dominant diffusion path is along the interface between the copper and the ...

Choi, Zung-Sun

2007-01-01T23:59:59.000Z

142

Reliability of lightning resistant overhead distribution lines  

SciTech Connect (OSTI)

An assessment of the 32 year historical reliability of the 13.8 kV electrical distribution system at the Oak Ridge National Laboratory (ORNL) in Tennessee has yielded several conclusions useful In the planning of Industrial power Systems. The system configuration at ORNL has essentially remained unchanged in the last 32 years which allows a meaningful comparison of reliability trends for the plant`s eight overhead distribution lines, two of which were built in the 1960`s with lightning resistant construction techniques. Meticulous records indicating the cause, duration, and location of 135 electric outages in the plant`s distribution system have allowed a reliability assessment to be performed. The assessment clearly shows how differences in voltage construction class, length, age, and maximum elevation above a reference elevation influence the reliability of overhead power distribution lines. Comparisons are also made between the ORNL historical data and predicted failure rates from ANSI and IEEE industry surveys.

Tolbert, L.M.; Cleveland, J.T.; Degenhardt, L.J.

1995-04-01T23:59:59.000Z

143

Gearbox Reliability Collaborative (GRC) Description and Loading  

SciTech Connect (OSTI)

This document describes simulated turbine load cases in accordance to the IEC 61400-1 Ed.3 standard, which is representative of the typical wind turbine design process. The information presented herein is intended to provide a broad understanding of the gearbox reliability collaborative 750kW drivetrain and turbine configuration. In addition, fatigue and ultimate strength drivetrain loads resulting from simulations are presented. This information provides the bases for the analytical work of the gearbox reliability collaborative effort.

Oyague, F.

2011-11-01T23:59:59.000Z

144

Reliability and Functional Availability of HVAC Systems  

E-Print Network [OSTI]

RELIABILITY AND FUNCTIONAL AVAILABILITY OF HVAC SYSTEMS Sonny Myrefelt Dep. of Build. Serv. Eng., KTH, 10044 Stockholm, Sweden, and SKANSKA Sydost, V?xj?, Sweden Summary This paper presents a model to calculate the reliability... system, therefore, there must be sufficient documentation of design airflow rates. The compulsory ventilation checks performed in Sweden have focused on the importance of maintaining the design air flow rates. More about this activity can be seen...

Myrefelt, S.

2004-01-01T23:59:59.000Z

145

-Reliability Patrick Th. Eugster Rachid Guerraoui Petr Kouznetsov  

E-Print Network [OSTI]

-Reliability Patrick Th. Eugster Rachid Guerraoui Petr Kouznetsov Swiss Federal Institute of the reliability of broadcast algorithms, called - Reliability. This measure quantifies the reliability of practical broadcast algorithms that, on the one hand, were devised with some form of reliability in mind

Guerraoui, Rachid

146

Research Areas  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearch Welcome toResearch Areas Our Vision National User Facilities

147

Research Areas  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearch Welcome toResearch Areas Our Vision National User

148

TO BE PRESENTED AT 2006 POWERCON, CHONGQING, CHINA, OCT 2006 A Hybrid Method for Multi-Area Generation  

E-Print Network [OSTI]

-Area Generation Expansion using Tabu-search and Dynamic Programming Panida Jirutitijaroen, Student Member, IEEE using dynamic programming for the solution of generation expansion and placement considering reliability, Reliability, Tabu Search, Power System Optimization, Global Decomposition, Generation Adequacy, Dynamic

149

Failure and Reliability Analysis for the Master Pump Shutdown System  

SciTech Connect (OSTI)

The Master Pump Shutdown System (MPSS) will be installed in the 200 Areas of the Hanford Site to monitor and control the transfer of liquid waste between tank farms and between the 200 West and 200 East areas through the Cross-Site Transfer Line. The Safety Function provided by the MPSS is to shutdown any waste transfer process within or between tank farms if a waste leak should occur along the selected transfer route. The MPSS, which provides this Safety Class Function, is composed of Programmable Logic Controllers (PLCs), interconnecting wires, relays, Human to Machine Interfaces (HMI), and software. These components are defined as providing a Safety Class Function and will be designated in this report as MPSS/PLC. Input signals to the MPSS/PLC are provided by leak detection systems from each of the tank farm leak detector locations along the waste transfer route. The combination of the MPSS/PLC, leak detection system, and transfer pump controller system will be referred to as MPSS/SYS. The components addressed in this analysis are associated with the MPSS/SYS. The purpose of this failure and reliability analysis is to address the following design issues of the Project Development Specification (PDS) for the MPSS/SYS (HNF 2000a): (1) Single Component Failure Criterion, (2) System Status Upon Loss of Electrical Power, (3) Physical Separation of Safety Class cables, (4) Physical Isolation of Safety Class Wiring from General Service Wiring, and (5) Meeting the MPSS/PLC Option 1b (RPP 1999) Reliability estimate. The failure and reliability analysis examined the system on a component level basis and identified any hardware or software elements that could fail and/or prevent the system from performing its intended safety function.

BEVINS, R.R.

2000-09-05T23:59:59.000Z

150

RELIABILITY OF WIND POWER FROM DISPERSED SITES: A PRELIMINARY ASSESSMENT  

E-Print Network [OSTI]

addresses itself to the reliability benefit of geograph-is a function of its reliability. typically want electricityI..I.ND DOCUMENTS SŁCTION Reliability of Wind Power From

Kahn, E.

2011-01-01T23:59:59.000Z

151

Reliability Optimization of Redundant Software with Correlated Failures  

E-Print Network [OSTI]

Reliability Optimization of Redundant Software with Correlated Failures Walter J. Gutjahr \\Lambda of reliability optimization of modular software with redundancy. At present, these approaches seem to be limited to generalize these reliability optimization techniques by taking such correlations explicitly

Gutjahr, Walter

152

Reliability Based Vegetation Management Through Intelligent System Monitoring  

E-Print Network [OSTI]

Reliability Based Vegetation Management Through Intelligent System Monitoring Final Project Report Research Center since 1996 PSERC #12;Power Systems Engineering Research Center Reliability Based Vegetation project titled "Reliability Based Vegetation Maintenance Through Intelligent System Monitoring (T-27)." We

153

Reliability of ENSO Dynamical Predictions YOUMIN TANG AND RICHARD KLEEMAN  

E-Print Network [OSTI]

Reliability of ENSO Dynamical Predictions YOUMIN TANG AND RICHARD KLEEMAN Courant Institute, the authors have explored several important issues relating to ENSO predictability including reliability measures of ENSO dynamical predictions and the dominant precursors that control reliability. It was found

Tang, Youmin

154

Reliability based assessment of FRP rehabilitation of reinforced concrete girders  

E-Print Network [OSTI]

J.P. SE 224 Structural Reliability and Risk Analysis, CourseL.A. Statistical Methods for Reliability Data. AppliedA.S. ; Collins, K.R. Reliability of Structures; McGraw-Hill

Wilcox, Patrick Carlo

2008-01-01T23:59:59.000Z

155

Real Time Grid Reliability Management 2005  

E-Print Network [OSTI]

Reactive Power Reserve Work Group, Western ElectricityReactive Voltage Security Assessment Wide Area Network Western Area Power Administration Western Electricity

Eto, Joe

2008-01-01T23:59:59.000Z

156

Culture Representation in Human Reliability Analysis  

SciTech Connect (OSTI)

Understanding human-system response is critical to being able to plan and predict mission success in the modern battlespace. Commonly, human reliability analysis has been used to predict failures of human performance in complex, critical systems. However, most human reliability methods fail to take culture into account. This paper takes an easily understood state of the art human reliability analysis method and extends that method to account for the influence of culture, including acceptance of new technology, upon performance. The cultural parameters used to modify the human reliability analysis were determined from two standard industry approaches to cultural assessment: Hofstede’s (1991) cultural factors and Davis’ (1989) technology acceptance model (TAM). The result is called the Culture Adjustment Method (CAM). An example is presented that (1) reviews human reliability assessment with and without cultural attributes for a Supervisory Control and Data Acquisition (SCADA) system attack, (2) demonstrates how country specific information can be used to increase the realism of HRA modeling, and (3) discusses the differences in human error probability estimates arising from cultural differences.

David Gertman; Julie Marble; Steven Novack

2006-12-01T23:59:59.000Z

157

Integration of NDE Reliability and Fracture Mechanics  

SciTech Connect (OSTI)

The Pacific Northwest Laboratory is conducting a four-phase program for measuring and evaluating the effectiveness and reliability of in-service inspection (lSI} performed on the primary system piping welds of commercial light water reactors (LWRs). Phase I of the program is complete. A survey was made of the state of practice for ultrasonic rsr of LWR primary system piping welds. Fracture mechanics calculations were made to establish required nondestrutive testing sensitivities. In general, it was found that fatigue flaws less than 25% of wall thickness would not grow to failure within an inspection interval of 10 years. However, in some cases failure could occur considerably faster. Statistical methods for predicting and measuring the effectiveness and reliability of lSI were developed and will be applied in the "Round Robin Inspections" of Phase II. Methods were also developed for the production of flaws typical of those found in service. Samples fabricated by these methods wilI be used in Phase II to test inspection effectiveness and reliability. Measurements were made of the influence of flaw characteristics {i.e., roughness, tightness, and orientation) on inspection reliability. These measurernents, as well as the predictions of a statistical model for inspection reliability, indicate that current reporting and recording sensitivities are inadequate.

Becker, F. L.; Doctor, S. R.; Heas!er, P. G.; Morris, C. J.; Pitman, S. G.; Selby, G. P.; Simonen, F. A.

1981-03-01T23:59:59.000Z

158

Modelling Reliability of Train Arrival Times  

E-Print Network [OSTI]

This paper deals with the scheduling of trains so as to minimise train trip times, whilst maximising reliability of arrival times. The amount of risk of delay associated with a schedule is used as the reliability component of a constrained schedule optimisation model. The paper outlines the model developed to quantify the risk of delays to individual trains, as well as to specific track segments and to the schedule as a whole. The risk model, which deals with single track operations, can be used to estimate the likely impact on reliability of arrival times of changes in train frequencies and operating practices; track and station infrastructure investment strategies; and train technology upgrading. An application of the model to the optimisation of schedules on a track corridor is described. The results obtained using the model are compared with the schedules used by train operations planning staff, in terms of overall delay and timetable reliability. The results highlight the significance of including a measure of timetable reliability, such as risk of delays, in the objective function for scheduling optimisation.

L. Ferreira; A. Higgins

159

Transmission Reliability "Load as a Resource" Peer Review Materials...  

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

Transmission Reliability "Load as a Resource" Peer Review Materials Now Available Transmission Reliability "Load as a Resource" Peer Review Materials Now Available September 25,...

160

BPA Fact Sheet - Preparing for reliability entity registration...  

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

Preparing for reliability entity registration Based on the NERC Functional Model The Energy Policy Act of 2005 (EPAct 2005) strongly emphasized reliability of the nation's bulk...

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Reliability of islanded microgrids with stochastic generation and prioritized load  

E-Print Network [OSTI]

The potential to improve distribution system reliability is a primary motivation behind the development and deployment of microgrids. Previous studies have illustrated substantial reliability benefits of dispatchable ...

Marden, Mirjana Milosevic

162

The Business Case for Fuel Cells 2013: Reliability, Resiliency...  

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

3: Reliability, Resiliency & Savings The Business Case for Fuel Cells 2013: Reliability, Resiliency & Savings This report, compiled by Fuel Cells 2000 with support from the Fuel...

163

Reliability Tools for Resonance Inspection of Light Metal Castings...  

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

Reliability Tools for Resonance Inspection of Light Metal Castings Reliability Tools for Resonance Inspection of Light Metal Castings 2012 DOE Hydrogen and Fuel Cells Program and...

164

Data Center Efficiency and IT Equipment Reliability at Wider...  

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

Center Efficiency and IT Equipment Reliability at Wider Operating Temperature and Humidity Ranges Data Center Efficiency and IT Equipment Reliability at Wider Operating Temperature...

165

Now Available: Smart Grid Investments Improve Grid Reliability...  

Energy Savers [EERE]

Smart Grid Investments Improve Grid Reliability, Resilience, and Storm Responses (November 2014) Now Available: Smart Grid Investments Improve Grid Reliability, Resilience, and...

166

Texas Uses Phasors to Increase Electricity Reliability | Department...  

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

Texas Uses Phasors to Increase Electricity Reliability Texas Uses Phasors to Increase Electricity Reliability March 31, 2011 - 12:57pm Addthis Merrill Smith Program Manager, Office...

167

Agenda for the PV Module Reliability Workshop, February 26 -...  

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

Agenda for the PV Module Reliability Workshop, February 26 - 27 2013, Golden, Colorado Agenda for the PV Module Reliability Workshop, February 26 - 27 2013, Golden, Colorado This...

168

Letter from Pepco Holdings Regarding the Reliability of Electric...  

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

from Pepco Holdings Regarding the Reliability of Electric Service in the District of Columbia Letter from Pepco Holdings Regarding the Reliability of Electric Service in the...

169

High Reliability, High TemperatureThermoelectric Power Generation...  

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

Reliability, High TemperatureThermoelectric Power Generation Materials and Technologies High Reliability, High TemperatureThermoelectric Power Generation Materials and Technologies...

170

Guide to Using Combined Heat and Power for Enhancing Reliability...  

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

Guide to Using Combined Heat and Power for Enhancing Reliability and Resiliency in Buildings Guide to Using Combined Heat and Power for Enhancing Reliability and Resiliency in...

171

Combined Heat and Power System Enables 100% Reliability at Leading...  

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

Enables 100% Reliability at Leading Medical Campus - Case Study, 2013 Combined Heat and Power System Enables 100% Reliability at Leading Medical Campus - Case Study, 2013 Thermal...

172

Effect of Jatropha based Biodiesel, on Engine Hardware Reliability...  

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

Jatropha based Biodiesel, on Engine Hardware Reliability, Emission and Performance Effect of Jatropha based Biodiesel, on Engine Hardware Reliability, Emission and Performance...

173

Office of Electricity Delivery and Energy Reliability Recovery...  

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

Electricity Delivery and Energy Reliability Recovery Program Plan Office of Electricity Delivery and Energy Reliability Recovery Program Plan Microsoft Word - OE PSRP June 5 2009...

174

The Office of Electricity Delivery and Energy Reliability is...  

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

The Office of Electricity Delivery and Energy Reliability is Closely Monitoring Hurricane Irene (2011) The Office of Electricity Delivery and Energy Reliability is Closely...

175

Office of Electricity Delivery & Energy Reliability FY 2012 Budget...  

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

Office of Electricity Delivery & Energy Reliability FY 2012 Budget Request Presentation Office of Electricity Delivery & Energy Reliability FY 2012 Budget Request Presentation...

176

Office of Electricity Delivery and Energy Reliability Cyber Security...  

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

Office of Electricity Delivery and Energy Reliability Cyber Security Project Selections Office of Electricity Delivery and Energy Reliability Cyber Security Project Selections On...

177

California Energy Balance ENVIRONMENTAL AREA RESEARCH  

E-Print Network [OSTI]

California Energy Balance Database ENVIRONMENTAL AREA RESEARCH PIER Environmental Research www.energy.ca.gov/research/ environmental January 2012 The Issue Comprehensive and reliable energy statistics are essential for good policy analysis and for future projections of energy supply and demand. In 2005, Lawrence Berkeley National Lab

178

Technique for Measuring Hybrid Electronic Component Reliability  

SciTech Connect (OSTI)

Materials compatibility studies of aged, engineered materials and hardware are critical to understanding and predicting component reliability, particularly for systems with extended stockpile life requirements. Nondestructive testing capabilities for component reliability would significantly enhance lifetime predictions. For example, if the detection of crack propagation through a solder joint can be demonstrated, this technique could be used to develop baseline information to statistically determine solder joint lifelengths. This report will investigate high frequency signal response techniques for nondestructively evaluating the electrical behavior of thick film hybrid transmission lines.

Green, C.C.; Hernandez, C.L.; Hosking, F.M.; Robinson, D.; Rutherford, B.; Uribe, F.

1999-01-01T23:59:59.000Z

179

Gearbox Reliability Collaborative Update: A Brief (Presentation)  

SciTech Connect (OSTI)

This presentation is an update on the Gearbox Reliability Collaborative (GRC) for the AWEA Wind Project Operations, Maintenance & Reliability Seminar. GRC accomplishments are: (1) Failure database software deployed - partners see business value for themselves and customers; (2) Designed, built, instrumented, and tested two gearboxes - (a) Generated unprecedented public domain test data from both field testing and dynamometer testing, (b) Different responses from 'identical' gearboxes, (c) Demonstrated importance of non-torque loading and modeling approach; and (3) Active collaborative, with wide industry support, leveraging DOE funding - Modeling round robin and Condition Monitoring round robin.

Sheng, S.; Keller, J.; McDade, M.

2012-01-01T23:59:59.000Z

180

Sandia National Laboratories: PV Systems Reliability  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLSMolten-SaltReliability PV Systems Reliability Sandia recognizes

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Sandia National Laboratories: PV Systems Reliability  

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

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

182

Sandia National Laboratories: Inverter Reliability Program  

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

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

183

Generalized Storage-Reliability-Yield equations for rainwater harvesting Lars S. Hanson1  

E-Print Network [OSTI]

and suburban areas. As the variable costs of rainwater collection tend to be quite small, the largest economic1 Generalized Storage-Reliability-Yield equations for rainwater harvesting systems Lars S. Hanson1 and Environmental Engineering, MassachusettsInstitute of Technology, Cambridge, MA Abstract: Although rainwater

Vogel, Richard M.

184

Energy Conservation in Reliable Wireless Sensor Fatma Bouabdallah, Nizar Bouabdallah and Raouf Boutaba  

E-Print Network [OSTI]

Energy Conservation in Reliable Wireless Sensor Networks Fatma Bouabdallah, Nizar Bouabdallah in the event area, enables significant energy conservation. I. INTRODUCTION Energy-efficiency is a critical the significant energy conservation that could be achieved when spatial correlation is exploited to reduce

Boutaba, Raouf

185

Southeast Idaho Area Links  

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

Area Attractions and Events Area Geography Area History Area Links Driving Directions Idaho Falls Attractions and Events INL History INL Today Research Park Sagebrush Steppe...

186

Grid Reliability- An Electric Utility Company's Perspective  

Broader source: Energy.gov [DOE]

Presentation—given at the Federal Utility Partnership Working Group (FUPWG) Fall 2008 meeting—covers Southern Company's business continuity, North American Electric Reliability Corporation (NERC) cybersecurity, and homeland security as well as physical recovery after a major outage, and five questions to ask your local utility.

187

Relatedness influences signal reliability in evolving robots  

E-Print Network [OSTI]

minute in an arena containing a food and a poison source that both emitted red light (figure 1). Robots could distinguish food and poison only at a very close range. The performance of robots was proportional related robots produced signals that reliably indicated the location of the food source and thereby

Floreano, Dario

188

New correlation calculates reliable paraffin solubilities  

SciTech Connect (OSTI)

A new correlation based on boiling point has been developed which accurately calculates paraffin solubilities in water. The correlation provides reliable solubility values down to very low concentrations (parts per million and less), for which the API correlation is not accurate. It can be used for initial engineering studies, including those involving health, safety, and environmental considerations.

Yaws, C.L.; Pan, X. (Lamar Univ., Beaumont, TX (US))

1991-04-08T23:59:59.000Z

189

Interval Analysis and Reliability in Robotics  

E-Print Network [OSTI]

be highly reliable (i.e. for a robot used in surgical applications). The sources of uncertainties will restrict ourself in this paper to industrial robot. These type of robots have a base that is attached the mechanism motion). There are two main classes of industrial robots mechani- cal architecture: serial

Paris-Sud XI, Université de

190

"Reliability, Resiliency, and Restoration for Smarter Grid  

E-Print Network [OSTI]

"Reliability, Resiliency, and Restoration for Smarter Grid Workshop" Save the Date April 3 and 4 at mohlsen@bnl.gov "The Resilient Smart Grid" to be held at Brookhaven National Laboratory Upton, Long Island://www.bnl.gov/maps/. This is the 5th workshop that BNL is hosting on the Smart Grid. This Workshop will build on the previous

Ohta, Shigemi

191

Reliable Link Maintenance in Cognitive Radio Systems  

E-Print Network [OSTI]

resources and overcome the under-utilization of licensed spectrum. Since the licensed user still keeps) have to vacate the spectrum in case the licensed user claims it. In order to maintain the qualityReliable Link Maintenance in Cognitive Radio Systems Daniel Willkomm, James Gross and Adam Wolisz

Gross, James

192

Reliability-Based Decision Making: A Comparison of Statistical Approaches  

E-Print Network [OSTI]

Reliability-Based Decision Making: A Comparison of Statistical Approaches J. M. Aughenbaugh whose reliability is well established and a new component that has an unknown reliability. In some scenarios, the designer may have some initial beliefs about the new component's reliability. The designer

Herrmann, Jeffrey W.

193

ContentsContents4466Reliability and quality control  

E-Print Network [OSTI]

ContentsContents4466Reliability and quality control 1. Reliability 2. Quality Control Learning outcomes You will first learn about the importance of the concept of reliability applied to systems previous experience with certain mathematical topics this time may vary considerably. 1 #12;Reliability

Vickers, James

194

ORNL/TM-2004/91 MEASUREMENT PRACTICES FOR RELIABILITY  

E-Print Network [OSTI]

ORNL/TM-2004/91 MEASUREMENT PRACTICES FOR RELIABILITY AND POWER QUALITY A TOOLKIT OF RELIABILITY MEASUREMENT PRACTICES June 2004 #12;#12;ORNL/TM-2004/91 MEASUREMENT PRACTICES FOR RELIABILITY AND POWER QUALITY A TOOLKIT OF RELIABILITY MEASUREMENT PRACTICES John D. Kueck and Brendan J. Kirby Oak Ridge

Oak Ridge National Laboratory

195

Applications of the Cross-Entropy Method in Reliability  

E-Print Network [OSTI]

Applications of the Cross-Entropy Method in Reliability Dirk P. Kroese and Kin-Ping Hui University and components that are all sub- ject to failure. Reliability theory studies the failure behavior of such sys, even for the most basic reliability models, the overall reliability of the system can be difficult

Kroese, Dirk P.

196

Security-Constrained Adequacy Evaluation of Bulk Power System Reliability  

E-Print Network [OSTI]

Security-Constrained Adequacy Evaluation of Bulk Power System Reliability Fang Yang, Student Member contingency selection, (b) effects analysis, and (c) reliability index computation. Effects analysis and reliability index computations. The methodology is demonstrated with the IEEE reliability test system. Index

197

Reliability and Validity: One Factor and Third Factor Tests  

E-Print Network [OSTI]

Chapter 7 Reliability and Validity: One Factor and Third Factor Tests D. White and A. Korotayev 26 Sept 2003 Html links are live Reliability and validity are crucial issues in research. Reliability may have high validity but low reliability, in which case its correlations with other high validity

White, Douglas R.

198

A Hierarchical Model for Estimating the Reliability of Complex Systems  

E-Print Network [OSTI]

an approximation to the joint posterior distribution on the total system reliability was obtained. Many reliability or bounding moments of the system reliability posterior distribution (Cole (1975), Mastran (1976), DostalA Hierarchical Model for Estimating the Reliability of Complex Systems Valen E. Johnson, Todd L

Reese, Shane

199

Improving Work Flow Reliability Proceedings IGLC-7 275  

E-Print Network [OSTI]

Ballard1 ABSTRACT Improving work flow reliability is important for the productivity of linked productionImproving Work Flow Reliability Proceedings IGLC-7 275 IMPROVING WORK FLOW RELIABILITY Glenn units, and consequently for project cost and duration. One measure of work flow reliability is PPC

Tommelein, Iris D.

200

IEEE TRANSACTIONS ON RELIABILITY, VOL. 54, NO. 3, SEPTEMBER 2005 475 Quality-Reliability Chain Modeling for  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON RELIABILITY, VOL. 54, NO. 3, SEPTEMBER 2005 475 Quality-Reliability Chain Modeling for System-Reliability Analysis of Complex Manufacturing Processes Yong Chen and Jionghua Jin Abstract--System reliability of a manufacturing process should address effects of both the manufacturing

Jin, Jionghua "Judy"

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Beyond Corridor Reliability Measures: Analysis of Freeway Travel Time Reliability at the1 Segment Level for Hotspot Identification2  

E-Print Network [OSTI]

Beyond Corridor Reliability Measures: Analysis of Freeway Travel Time Reliability at the1 Segment and particularly1 freeways. However, it has become evident that travel time reliability, taking into account at the directional corridor level for planning4 purposes and analyze the ways in which travel time reliability can

Bertini, Robert L.

202

Adhesion and Thin-Film Module Reliability: Preprint  

SciTech Connect (OSTI)

Among the infrequently measured but essential properties for thin-film (T-F) module reliability are the interlayer adhesion and cohesion within a layer. These can be cell contact layers to glass, contact layers to the semiconductor, encapsulant to cell, glass, or backsheet, etc. We use an Instron mechanical testing unit to measure peel strengths at 90{sup o} or 180{sup o} and, in some cases, a scratch and tape pull test to evaluate inter-cell layer adhesion strengths. We present peel strength data for test specimens laminated from the three T-F technologies, before and after damp heat, and in one instance at elevated temperatures. On laminated T-F cell samples, failure can occur uniformly at any one of the many interfaces, or non-uniformly across the peel area at more than one interface. Some peel strengths are << 1 N/mm. This is far below the normal Instron mechanical testing unit Instron mechanical testing unit; glass interface values of >10 N/mm. We measure a wide range of adhesion strengths and suggest that adhesion measured under higher temperature and relative humidity conditions is more relevant for module reliability.

McMahon, T. J.; Jorgensen, G. J.

2006-05-01T23:59:59.000Z

203

Structural Reliability: Assessing the Condition and Reliability of Casing in Compacting Reservoirs  

E-Print Network [OSTI]

. Effective stress may exceed rock compressive strength, inducing compaction. Wells in compacting reservoirs risk high failure and deformation rates. This project introduces the concept of structural reliability to quantify casing failure risks in compacting...

Chantose, Prasongsit

2012-02-14T23:59:59.000Z

204

Current Human Reliability Analysis Methods Applied to Computerized Procedures  

SciTech Connect (OSTI)

Computerized procedures (CPs) are an emerging technology within nuclear power plant control rooms. While CPs have been implemented internationally in advanced control rooms, to date no US nuclear power plant has implemented CPs in its main control room (Fink et al., 2009). Yet, CPs are a reality of new plant builds and are an area of considerable interest to existing plants, which see advantages in terms of enhanced ease of use and easier records management by omitting the need for updating hardcopy procedures. The overall intent of this paper is to provide a characterization of human reliability analysis (HRA) issues for computerized procedures. It is beyond the scope of this document to propose a new HRA approach or to recommend specific methods or refinements to those methods. Rather, this paper serves as a review of current HRA as it may be used for the analysis and review of computerized procedures.

Ronald L. Boring

2012-06-01T23:59:59.000Z

205

Electronic logic for enhanced switch reliability  

DOE Patents [OSTI]

A logic circuit is used to enhance redundant switch reliability. Two or more switches are monitored for logical high or low output. The output for the logic circuit produces a redundant and fail-safe representation of the switch outputs. When both switch outputs are high, the output is high. Similarly, when both switch outputs are low, the logic circuit's output is low. When the output states of the two switches do not agree, the circuit resolves the conflict by memorizing the last output state which both switches were simultaneously in and produces the logical complement of this output state. Thus, the logic circuit of the present invention allows the redundant switches to be treated as if they were in parallel when the switches are open and as if they were in series when the switches are closed. A failsafe system having maximum reliability is thereby produced.

Cooper, J.A.

1984-01-20T23:59:59.000Z

206

Reliability Estimation for Double Containment Piping  

SciTech Connect (OSTI)

Double walled or double containment piping is considered for use in the ITER international project and other next-generation fusion device designs to provide an extra barrier for tritium gas and other radioactive materials. The extra barrier improves confinement of these materials and enhances safety of the facility. This paper describes some of the design challenges in designing double containment piping systems. There is also a brief review of a few operating experiences of double walled piping used with hazardous chemicals in different industries. This paper recommends approaches for the reliability analyst to use to quantify leakage from a double containment piping system in conceptual and more advanced designs. The paper also cites quantitative data that can be used to support such reliability analyses.

L. Cadwallader; T. Pinna

2012-08-01T23:59:59.000Z

207

Sample sizes for confidence limits for reliability.  

SciTech Connect (OSTI)

We recently performed an evaluation of the implications of a reduced stockpile of nuclear weapons for surveillance to support estimates of reliability. We found that one technique developed at Sandia National Laboratories (SNL) under-estimates the required sample size for systems-level testing. For a large population the discrepancy is not important, but for a small population it is important. We found that another technique used by SNL provides the correct required sample size. For systems-level testing of nuclear weapons, samples are selected without replacement, and the hypergeometric probability distribution applies. Both of the SNL techniques focus on samples without defects from sampling without replacement. We generalized the second SNL technique to cases with defects in the sample. We created a computer program in Mathematica to automate the calculation of confidence for reliability. We also evaluated sampling with replacement where the binomial probability distribution applies.

Darby, John L.

2010-02-01T23:59:59.000Z

208

The Lightswitch Wizard -- reliable daylight simulations  

E-Print Network [OSTI]

A web-based, non-expert daylighting analysis tool has been developed to support daylighting-related design decisions in peripheral private offices during an early design stage (http://buildwiz.com). The tool offers a comparative, reliable, and fast analysis of the annual amount of daylight in the offices (daylight factor and daylight autonomy) and the lighting energy performance of automated lighting controls (occupancy sensors, photocells) compared to standard on/off switches. Blinds are either manually or automatically controlled.

For Initial Design; C. F. Morrison; M. Dubrous; C. F. Reinhart ?; M. Morrison; F. Dubrous

209

Sandia National Laboratories: photovoltaic plant reliability  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1developmentturbine bladelifetime ismobileparallelplant reliability Sandia-Electric

210

Reliable Power Inc | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia Blue Ridge And Piedmont Provinces |Rehobeth,Reliable Power Inc

211

Site Monitoring Area Maps  

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

to the Site Monitoring Area (SMA) The Site Monitoring Area sampler Control measures (best management practices) installed at the Site Monitoring Area Structures such as...

212

Wildlife Management Areas (Minnesota)  

Broader source: Energy.gov [DOE]

Certain areas of the State are designated as wildlife protection areas and refuges; new construction and development is restricted in these areas.

213

The Reliability of Triage Classification as a Predictor of Severity in Major Trauma  

E-Print Network [OSTI]

egional A bstracts The Reliability of Triage Classificationbe undertaken to validate its reliability and consideration

Moreno-Walton, Lisa; Torres, Hector; Radeos, Michael

2007-01-01T23:59:59.000Z

214

Continuous Reliability Enhancement for Wind (CREW) database : wind plant reliability benchmark.  

SciTech Connect (OSTI)

To benchmark the current U.S. wind turbine fleet reliability performance and identify the major contributors to component-level failures and other downtime events, the Department of Energy funded the development of the Continuous Reliability Enhancement for Wind (CREW) database by Sandia National Laboratories. This report is the third annual Wind Plant Reliability Benchmark, to publically report on CREW findings for the wind industry. The CREW database uses both high resolution Supervisory Control and Data Acquisition (SCADA) data from operating plants and Strategic Power Systems' ORAPWind%C2%AE (Operational Reliability Analysis Program for Wind) data, which consist of downtime and reserve event records and daily summaries of various time categories for each turbine. Together, these data are used as inputs into CREW's reliability modeling. The results presented here include: the primary CREW Benchmark statistics (operational availability, utilization, capacity factor, mean time between events, and mean downtime); time accounting from an availability perspective; time accounting in terms of the combination of wind speed and generation levels; power curve analysis; and top system and component contributors to unavailability.

Hines, Valerie Ann-Peters; Ogilvie, Alistair B.; Bond, Cody R.

2013-09-01T23:59:59.000Z

215

Reliability Assessment Commitment Process (RAC) A. Introduction  

E-Print Network [OSTI]

to enable the Midwest ISO to commit additional supply if needed to meet the system load forecast and reserve such responsibilities to each of the Balancing Area Operators, for the following reasons: The need to commit additional by the Midwest ISO on a system-wide basis throughout the Midwest ISO Region, rather than on a Balancing Area

McCalley, James D.

216

Final report on reliability and lifetime prediction.  

SciTech Connect (OSTI)

This document highlights the important results obtained from the subtask of the Goodyear CRADA devoted to better understanding reliability of tires and to developing better lifetime prediction methods. The overall objective was to establish the chemical and physical basis for the degradation of tires using standard as well as unique models and experimental techniques. Of particular interest was the potential application of our unique modulus profiling apparatus for assessing tire properties and for following tire degradation. During the course of this complex investigation, extensive relevant information was generated, including experimental results, data analyses and development of models and instruments. Detailed descriptions of the findings are included in this report.

Gillen, Kenneth Todd; Wise, Jonathan; Jones, Gary D.; Causa, Al G. [Goodyear Tire and Rubber Co., Akron, OH; Terrill, Edward R. [Goodyear Tire and Rubber Co., Akron, OH; Borowczak, Marc [Goodyear Tire and Rubber Co., Akron, OH

2012-12-01T23:59:59.000Z

217

Accuracy and reliability of China's energy statistics  

SciTech Connect (OSTI)

Many observers have raised doubts about the accuracy and reliability of China's energy statistics, which show an unprecedented decline in recent years, while reported economic growth has remained strong. This paper explores the internal consistency of China's energy statistics from 1990 to 2000, coverage and reporting issues, and the state of the statistical reporting system. Available information suggests that, while energy statistics were probably relatively good in the early 1990s, their quality has declined since the mid-1990s. China's energy statistics should be treated as a starting point for analysis, and explicit judgments regarding ranges of uncertainty should accompany any conclusions.

Sinton, Jonathan E.

2001-09-14T23:59:59.000Z

218

Reliability Technology earns prestigious Los Alamos award  

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

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

219

Granite Reliable Power | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place: Golden, COIndiana Jump to:Grand RidgeReliable Power

220

Sandia National Laboratories: Blade Reliability Collaborative  

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

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

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Sandia National Laboratories: Blade Reliability Collaborative  

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

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

222

Sandia National Laboratories: Inverter Reliability Program  

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

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

223

Ensuring the Availability and Reliability of Urea Dosing For...  

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

Ensuring the Availability and Reliability of Urea Dosing For On-Road and Non-Road Ensuring the Availability and Reliability of Urea Dosing For On-Road and Non-Road 2003 DEER...

224

Energy Department Invests Over $10 Million to Improve Grid Reliability...  

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

Over 10 Million to Improve Grid Reliability and Resiliency Energy Department Invests Over 10 Million to Improve Grid Reliability and Resiliency June 11, 2014 - 6:20pm Addthis...

225

Bus supervision deployment strategies for improved bus service reliability  

E-Print Network [OSTI]

Bus service reliability has always been a top concern for transit agencies and their customers. Unfortunately, there are several factors detrimental to reliable bus service. Outside influences such as weather, traffic, and ...

Pangilinan, Christopher Allan

2006-01-01T23:59:59.000Z

226

Reliability characterization and prediction of high k dielectric thin film  

E-Print Network [OSTI]

As technologies continue advancing, semiconductor devices with dimensions in nanometers have entered all spheres of human life. This research deals with both the statistical aspect of reliability and some electrical aspect of reliability...

Luo, Wen

2006-04-12T23:59:59.000Z

227

Implications of reliability in mechanistic/empirical pavement design applications  

E-Print Network [OSTI]

to engineering is that; reliability is the probability that an engineered system will perform its required function adequately for a specified period of time under the stated conditions. Reliability is important because of the uncertainty involved...

Killingsworth, Brian Mark

1994-01-01T23:59:59.000Z

228

Wind Power Reliability: Breaking Down a Barrier | Department...  

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

Wind Power Reliability: Breaking Down a Barrier Wind Power Reliability: Breaking Down a Barrier June 25, 2010 - 12:16pm Addthis EnerNex Corporation is developing documentation and...

229

Gearbox Reliability Collaborative - Phase 1 and 2 Overview (Presentation)  

SciTech Connect (OSTI)

The presentation given at the Wind Turbine Reliability Workshop at Sandia National Laboratories, August 2-3, 2011, serves as an overview for the findings from the Gearbox Reliability Collaborative Project Report: Findings from Phase 1 and Phase 2 Testing

Link, H.

2011-08-01T23:59:59.000Z

230

Designing CPV Receivers With Reliability: Early Evaluation of Components  

E-Print Network [OSTI]

. Everett, A. Blakers Centre for Sustainable Energy Systems, The Australian National University, Canberra: Early detection of performance issues allows more rapid & reliable design optimisation. Thermal. Ultra light-weight Fresnel mirror enclosed system. DESIGN RELIABILITY PRODUCTION Early detection

231

Wildlife Management Areas (Florida)  

Broader source: Energy.gov [DOE]

Certain sites in Florida are designated as wildlife management areas, and construction and development is heavily restricted in these areas.

232

E-Print Network 3.0 - area electric reliability Sample Search...  

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

for Capacities < 10 k Source: DOE Office of Energy Efficiency and Renewable Energy, Hydrogen, Fuel Cells and Infrastructure Technologies Program Collection: Energy Storage,...

233

Puget Sound Area Electric Reliability Plan : Supplemental Environmental Analysis, Schultz Substation.  

SciTech Connect (OSTI)

This document describes the purpose, function, and the environmental consequences of the proposed Schultz substation near Ellensburg, Washington. The affected environment is described in detail, including aerial survey photographs. The impacts on vegetation, fish and wildlife, soils, and water resources are described. (GHH)

United States. Bonneville Power Administration.

1992-04-01T23:59:59.000Z

234

Photovoltaic Module Reliability Workshop 2010: February 18-19, 2010  

SciTech Connect (OSTI)

NREL's Photovoltaic (PV) Module Reliability Workshop (PVMRW) brings together PV reliability experts to share information, leading to the improvement of PV module reliability. Such improvement reduces the cost of solar electricity and promotes investor confidence in the technology--both critical goals for moving PV technologies deeper into the electricity marketplace.

Kurtz, J.

2013-11-01T23:59:59.000Z

235

Photovoltaic Module Reliability Workshop 2014: February 25-26, 2014  

SciTech Connect (OSTI)

NREL's Photovoltaic (PV) Module Reliability Workshop (PVMRW) brings together PV reliability experts to share information, leading to the improvement of PV module reliability. Such improvement reduces the cost of solar electricity and promotes investor confidence in the technology--both critical goals for moving PV technologies deeper into the electricity marketplace.

Kurtz, S.

2014-02-01T23:59:59.000Z

236

GENETIC ALGORITHM DESIGN OF NETWORKS CONSIDERING ALL-TERMINAL RELIABILITY  

E-Print Network [OSTI]

GENETIC ALGORITHM DESIGN OF NETWORKS CONSIDERING ALL-TERMINAL RELIABILITY Berna Dengiz and Fulya. The reliability and the cost of these systems are important considerations that are largely determined to solve the all-terminal network design problem when considering cost and reliability. The GA

Smith, Alice E.

237

Reliability, Sufficiency, and the Decomposition of Proper Scores  

E-Print Network [OSTI]

Reliability, Sufficiency, and the Decomposition of Proper Scores Jochen Br¨ocker October 23, 2009 scoring rules allow for a decomposition into terms related to the resolution and to the reliability to forecasts for finite­valued targets. Both resolution and reliability are shown to have a positive effect

Bröcker, Jochen

238

Reliability-Constrained Latent Structure Peter Westfall and Kevin Henning  

E-Print Network [OSTI]

Reliability-Constrained Latent Structure Models Peter Westfall and Kevin Henning Texas Tech allow you to estimate reliability of your measure of the fuzzy concept · LSMs allow you to estimate cannot identify reliability. · LSMs cannot identify relationships between fuzzy concepts. · LSMs cannot

Westfall, Peter H.

239

Optimal Link Assignments for All-Terminal Network Reliability  

E-Print Network [OSTI]

Optimal Link Assignments for All-Terminal Network Reliability Constantine Stivaros Computer Science are subject to failure have been exten- sively studied in the literature. Their reliability is regarded reliability measure, defined as the probability that the network remains connected after failures. Previous

Sutner, Klaus

240

BAYESIAN RELIABILITY MODELING FOR MASKED SYSTEM LIFETIME DATA  

E-Print Network [OSTI]

BAYESIAN RELIABILITY MODELING FOR MASKED SYSTEM LIFETIME DATA Lynn KUO \\Lambda Department to fail. The objective is to make inferences for the reliability of the components. In this paper we Title: Reliability Inference for Masked System Lifetime Data. 1. Introduction In the masked system

Kuo, Lynn

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

On the reliability of seasonal forecasts Antje Weisheimer  

E-Print Network [OSTI]

On the reliability of seasonal forecasts Antje Weisheimer Weisheimer to achieving a "5"? à Use reliability of non-climatological forecastsDon: · if (X) C(X) à climatological (reliable) informaDon · if (X) C(X) à

Stevenson, Paul

242

Ecient Reliability Modeling and Analysis of Telecommunication Networks  

E-Print Network [OSTI]

EĂ?cient Reliability Modeling and Analysis of Telecommunication Networks #3; L#19;aszl#19;o Jereb approach which is based on a simple two-state reliability model of the network elements taking into account implemented in the network. Using these information the network performance-reliability indexes including

László, Jereb

243

Reliability-Centric High-Level Synthesis , N. Mansouri  

E-Print Network [OSTI]

1 Reliability-Centric High-Level Synthesis S. Tosun , N. Mansouri , E. Arvas , M. Kandemir-down. As a result, it is becoming necessary to treat reliability as a first-class citizen in system design. In particular, reliability decisions taken early in system design can have significant benefits in terms

Paris-Sud XI, Université de

244

Reliability Analysis of Deduplicated and Erasure-Coded Storage  

E-Print Network [OSTI]

Reliability Analysis of Deduplicated and Erasure-Coded Storage Xiaozhou Li Mark Lillibridge Hewlett Avenue Palo Alto, CA muysal@vmware.com ABSTRACT Space efficiency and data reliability are two primary, deduplication affects data reliability because an object's constituent chunks are often spread across a large

Lillibridge, Mark

245

Reliability Gain of Network Coding in Lossy Wireless Networks  

E-Print Network [OSTI]

Reliability Gain of Network Coding in Lossy Wireless Networks Majid Ghaderi Department of Computer that network coding improves network reliability by reducing the number of packet retransmissions in lossy networks. However, the extent of the reliability benefit of network coding is not known. This paper

Massachusetts at Amherst, University of

246

Network Reliability Optimization via the Cross-Entropy Method  

E-Print Network [OSTI]

1 Network Reliability Optimization via the Cross-Entropy Method Dirk P. Kroese, Kin-Ping Hui and reliability. Given a fixed budget, which links should be purchased in order to maximize the system's reliability? We introduce a new approach, based on the Cross-Entropy method, which can deal effectively

Kroese, Dirk P.

247

Exploring Reliability for Automatic Identity Verification with Statistical Shape Models  

E-Print Network [OSTI]

Exploring Reliability for Automatic Identity Verification with Statistical Shape Models Federico M reliability measure of the result. In fact, the segmentation process is One ofthe drawbacks ofstatistical to a wrong result [4]. generic reliability measure for statistical shape models. It This problem

Frangi, Alejandro

248

Bayesian Networks and Evidence Theory to Model Complex Systems Reliability  

E-Print Network [OSTI]

Bayesian Networks and Evidence Theory to Model Complex Systems Reliability Ch. SIMON, Ph. WEBER, E.levrat}@cran.uhp-nancy.fr Abstract-- This paper deals with the use of Bayesian Net- works to compute system reliability of complex systems un- der epistemic uncertainty. In the context of incompleteness of reliability data

Paris-Sud XI, Université de

249

Reliability of Heterogeneous Distributed Computing Systems in the Presence  

E-Print Network [OSTI]

Reliability of Heterogeneous Distributed Computing Systems in the Presence of Correlated Failures Jorge E. Pezoa, Member, IEEE and Majeed M. Hayat, Fellow, IEEE Abstract--While the reliability) fail independently, the impact of correlated failures of CEs on the reliability remains an open

Hayat, Majeed M.

250

CSCI 668: Reliability MWF 11:0011:50 Jones 302  

E-Print Network [OSTI]

CSCI 668: Reliability Fall, 2012 MWF 11:00­11:50 Jones 302 Instructor: Larry Leemis Office: Jones Purpose: This course introduces probabilistic models and statistical methods used in reliability reliability theory at the level of the current archival literature. This semester, you will read articles from

Leemis, Larry

251

Reliability: The Other Dimension of Quality William Q. Meeker  

E-Print Network [OSTI]

Reliability: The Other Dimension of Quality William Q. Meeker Department of Statistics Iowa State extension of the revolution in product quality is to turn focus to product reliability, which is defined the relationship between engineering quality and reliability and outline the role of statistics and statisticians

252

"Reliability Inference Based on Multistate and Degradation Models"  

E-Print Network [OSTI]

"Reliability Inference Based on Multistate and Degradation Models" Vijay Nair Department of Georgia Department of Statistics Colloquium Series Reliability or survival analysis is traditionally based on time-to-failure data. In high- reliability applications, there is usually a high degree of censoring

Arnold, Jonathan

253

Reliability Tradeoffs in Personal Storage Systems John A. Chandy  

E-Print Network [OSTI]

Reliability Tradeoffs in Personal Storage Systems John A. Chandy john.chandy@uconn.edu Sumit ABSTRACT RAID has long been established as an effective way to provide highly reliable disk subsystems. However, reliability in RAID sys- tems comes at the cost of extra disks and somewhat lower perfor- mance

Chandy, John A.

254

Reliability Analysis of Deduplicated and Erasure-Coded Storage  

E-Print Network [OSTI]

Reliability Analysis of Deduplicated and Erasure-Coded Storage Xiaozhou Li Mark Lillibridge Mustafa reliability are two primary concerns for modern storage systems. Chunk-based deduplication, which breaks up for saving storage space. However, deduplication affects data reliability because an object's constituent

Lillibridge, Mark

255

A note on independent-disjoint analysis of network reliability  

E-Print Network [OSTI]

A note on independent-disjoint analysis of network reliability R. E. Andersen Department include both SDPs and OBDDs, and are well suited for network reliability computations. Keywords. Sum of disjoint products; Binary decision diagram; Net- work reliability; Boolean function 1 #12;Network

Traldi, Lorenzo

256

Structural Reliability Analysis for One Dimensional, Two Phase Miscible Flow  

E-Print Network [OSTI]

Structural Reliability Analysis for One Dimensional, Two Phase Miscible Flow David A. Coker­3600 December 22, 1992 Abstract An analytic structural reliability analysis is performed for first contact mis of the permeability. Key words: miscible flow, reliability methods, sensitivity analysis AMS(MOS): 35R60, 62N05,

New York at Stoney Brook, State University of

257

On some statistical aspects of software testing and reliability  

E-Print Network [OSTI]

On some statistical aspects of software testing and reliability Frank P.A. Coolen Abstract and reliability. Several difficulties are highlighted and several research challenges are discussed. Overall useful inferences on software reliability if the statistical methods are considered to be an `add

Coolen, Frank

258

Seeking Reliability in Freedom: The Case of F/OSS  

E-Print Network [OSTI]

Chapter 15 Seeking Reliability in Freedom: The Case of F/OSS Hamid R. Ekbia and Les Gasser Abstract The risks and hazards involved in computerized environments have turned "reliability" into a major is that more reliable, secure, and efficient software can be produced under the free/open source software (F

Indiana University

259

On the Reliability of Wireless Sensor Networks Communications  

E-Print Network [OSTI]

On the Reliability of Wireless Sensor Networks Communications Alexandre Mouradian and Isabelle Aug applications, which must meet time and reliability requirements. Works on the real-time ca- pability of WSNs have been proposed [1]. In this paper we propose to study the achievable reliability of WSNs, tacking

Paris-Sud XI, Université de

260

Development of a Successful Program in Reliability and Maintainability Engineering  

E-Print Network [OSTI]

and Maintainability Center The Maintenance and Reliability Center is a university - industry association dedicated at UT · Reliability and Maintainability Center (RMC) ­ University - industry association dedicated and reliability technologies and management principles ­ Industrial Center since 1996 with ~30 members

Bernstein, Joseph B.

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Estimation of Photovoltaic System Reliability and Performance Metrics  

E-Print Network [OSTI]

1 Estimation of Photovoltaic System Reliability and Performance Metrics Sairaj V. Dhople, Student reliability and perfor- mance analysis of grid-tied photovoltaic (PV) systems is for- mulated using Markov and energy yield, and reliability metrics such as availability. The paper also provides an analytical method

Liberzon, Daniel

262

RELIABILITY COMPARISON MODELS FOR OFFSHORE WIND TURBINES (OWT)  

E-Print Network [OSTI]

RELIABILITY COMPARISON MODELS FOR OFFSHORE WIND TURBINES (OWT) Yizhou Lu, T. M. Delorm, A. Christou of the reliability of these 5 Types Surrogate failure rate data Onshore wind turbines (OT) 1-1.5MW CONCLUSIONS., Faulstich, S. & van Bussel G. J. W. Reliability & availability of wind turbine electrical & electronic

Bernstein, Joseph B.

263

Reliable Ad Hoc Group Communication using Local Neighborhoods  

E-Print Network [OSTI]

1 Reliable Ad Hoc Group Communication using Local Neighborhoods Lawrence Klos, Golden G. Richard Abstract - In this paper an enhanced reliability protocol added to the ODMRP multicast ad hoc protocol by operational phase. Index Terms ­ Mobile Networking, Ad Hoc Wireless, Multicast, Reliable, ODMRP. I

Richard III, Golden G.

264

Photovoltaic Module Reliability Workshop 2011: February 16-17, 2011  

SciTech Connect (OSTI)

NREL's Photovoltaic (PV) Module Reliability Workshop (PVMRW) brings together PV reliability experts to share information, leading to the improvement of PV module reliability. Such improvement reduces the cost of solar electricity and promotes investor confidence in the technology--both critical goals for moving PV technologies deeper into the electricity marketplace.

Kurtz, S.

2013-11-01T23:59:59.000Z

265

Opis: Reliable Distributed Systems in OCaml Pierre-Evariste Dagand  

E-Print Network [OSTI]

Opis: Reliable Distributed Systems in OCaml Pierre-´Evariste Dagand ENS Cachan-Bretagne, France concurrent and distributed systems, making them more widespread and more reliable. Among several models and imple- mentation challenges in developing reliable distributed sys- tems, making the field an excellent

Kuncak, Viktor

266

Guest Editorial: Special Issue on Reliable Distributed Systems  

E-Print Network [OSTI]

Guest Editorial: Special Issue on Reliable Distributed Systems Shambhu J. Upadhyaya, Senior Member, designers, and implementers of distributed systems, with emphasis on system properties such as reliability with the 19th IEEE Symposium on Reliable Distributed Systems held at Nuernberg, Germany, 2000, but the topics

Firenze, Universitŕ degli Studi di

267

Photovoltaic Module Reliability Workshop 2012: February 28 - March 1, 2012  

SciTech Connect (OSTI)

NREL's Photovoltaic (PV) Module Reliability Workshop (PVMRW) brings together PV reliability experts to share information, leading to the improvement of PV module reliability. Such improvement reduces the cost of solar electricity and promotes investor confidence in the technology--both critical goals for moving PV technologies deeper into the electricity marketplace.

Kurtz, S.

2013-11-01T23:59:59.000Z

268

Photovoltaic Module Reliability Workshop 2013: February 26-27, 2013  

SciTech Connect (OSTI)

NREL's Photovoltaic (PV) Module Reliability Workshop (PVMRW) brings together PV reliability experts to share information, leading to the improvement of PV module reliability. Such improvement reduces the cost of solar electricity and promotes investor confidence in the technology--both critical goals for moving PV technologies deeper into the electricity marketplace.

Kurtz, S.

2013-10-01T23:59:59.000Z

269

A QUALITY CONTROL FRAMEWORK FOR BUS SCHEDULE RELIABILITY  

E-Print Network [OSTI]

A QUALITY CONTROL FRAMEWORK FOR BUS SCHEDULE RELIABILITY JIE LIN*, University of Illinois Institute A QUALITY CONTROL FRAMEWORK FOR BUS SCHEDULE RELIABILITY Abstract This paper develops and demonstrates a quality control framework for bus schedule reliability. Automatic Vehicle Location (AVL) devices

Illinois at Chicago, University of

270

Final report for CCS cross-layer reliability visioning study  

SciTech Connect (OSTI)

The geometric rate of improvement of transistor size and integrated circuit performance known as Moore's Law has been an engine of growth for our economy, enabling new products and services, creating new value and wealth, increasing safety, and removing menial tasks from our daily lives. Affordable, highly integrated components have enabled both life-saving technologies and rich entertainment applications. Anti-lock brakes, insulin monitors, and GPS-enabled emergency response systems save lives. Cell phones, internet appliances, virtual worlds, realistic video games, and mp3 players enrich our lives and connect us together. Over the past 40 years of silicon scaling, the increasing capabilities of inexpensive computation have transformed our society through automation and ubiquitous communications. Looking forward, increasing unpredictability threatens our ability to continue scaling integrated circuits at Moore's Law rates. As the transistors and wires that make up integrated circuits become smaller, they display both greater differences in behavior among devices designed to be identical and greater vulnerability to transient and permanent faults. Conventional design techniques expend energy to tolerate this unpredictability by adding safety margins to a circuit's operating voltage, clock frequency or charge stored per bit. However, the rising energy costs needed to compensate for increasing unpredictability are rapidly becoming unacceptable in today's environment where power consumption is often the limiting factor on integrated circuit performance and energy efficiency is a national concern. Reliability and energy consumption are both reaching key inflection points that, together, threaten to reduce or end the benefits of feature size reduction. To continue beneficial scaling, we must use a cross-layer, Jull-system-design approach to reliability. Unlike current systems, which charge every device a substantial energy tax in order to guarantee correct operation in spite of rare events, such as one high-threshold transistor in a billion or one erroneous gate evaluation in an hour of computation, cross-layer reliability schemes make reliability management a cooperative effort across the system stack, sharing information across layers so that they only expend energy on reliability when an error actually occurs. Figure 1 illustrates an example of such a system that uses a combination of information from the application and cheap architecture-level techniques to detect errors. When an error occurs, mechanisms at higher levels in the stack correct the error, efficiently delivering correct operation to the user in spite of errors at the device or circuit levels. In the realms of memory and communication, engineers have a long history of success in tolerating unpredictable effects such as fabrication variability, transient upsets, and lifetime wear using information sharing, limited redundancy, and cross-layer approaches that anticipate, accommodate, and suppress errors. Networks use a combination of hardware and software to guarantee end-toend correctness. Error-detection and correction codes use additional information to correct the most common errors, single-bit transmission errors. When errors occur that cannot be corrected by these codes, the network protocol requests re-transmission of one or more packets until the correct data is received. Similarly, computer memory systems exploit a cross-layer division of labor to achieve high performance with modest hardware. Rather than demanding that hardware alone provide the virtual memory abstraction, software page-fault and TLB-miss handlers allow a modest piece of hardware, the TLB, to handle the common-case operations on a cyc1e-by-cycle basis while infrequent misses are handled in system software. Unfortunately, mitigating logic errors is not as simple or as well researched as memory or communication systems. This lack of understanding has led to very expensive solutions. For example, triple-modular redundancy masks errors by triplicating computations in either time or area. T

Quinn, Heather M [Los Alamos National Laboratory; Dehon, Andre [U. PENN; Carter, Nicj [INTEL

2010-12-20T23:59:59.000Z

271

NREL: Performance and Reliability R&D - Real-Time Reliability R&D  

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

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

272

Real Time Grid Reliability Management 2005  

SciTech Connect (OSTI)

The increased need to manage California?s electricity grid in real time is a result of the ongoing transition from a system operated by vertically-integrated utilities serving native loads to one operated by an independent system operator supporting competitive energy markets. During this transition period, the traditional approach to reliability management -- construction of new transmission lines -- has not been pursued due to unresolved issues related to the financing and recovery of transmission project costs. In the absence of investments in new transmission infrastructure, the best strategy for managing reliability is to equip system operators with better real-time information about actual operating margins so that they can better understand and manage the risk of operating closer to the edge. A companion strategy is to address known deficiencies in offline modeling tools that are needed to ground the use of improved real-time tools. This project: (1) developed and conducted first-ever demonstrations of two prototype real-time software tools for voltage security assessment and phasor monitoring; and (2) prepared a scoping study on improving load and generator response models. Additional funding through two separate subsequent work authorizations has already been provided to build upon the work initiated in this project.

Eto, Joe; Eto, Joe; Lesieutre, Bernard; Lewis, Nancy Jo; Parashar, Manu

2008-07-07T23:59:59.000Z

273

Using wind plant data to increase reliability.  

SciTech Connect (OSTI)

Operators interested in improving reliability should begin with a focus on the performance of the wind plant as a whole. To then understand the factors which drive individual turbine performance, which together comprise the plant performance, it is necessary to track a number of key indicators. Analysis of these key indicators can reveal the type, frequency, and cause of failures and will also identify their contributions to overall plant performance. The ideal approach to using data to drive good decisions includes first determining which critical decisions can be based on data. When those required decisions are understood, then the analysis required to inform those decisions can be identified, and finally the data to be collected in support of those analyses can be determined. Once equipped with high-quality data and analysis capabilities, the key steps to data-based decision making for reliability improvements are to isolate possible improvements, select the improvements with largest return on investment (ROI), implement the selected improvements, and finally to track their impact.

Peters, Valerie A. (Sandia National Laboratories, Livermore, CA); Ogilvie, Alistair B.; McKenney, Bridget L.

2011-01-01T23:59:59.000Z

274

Real Time Grid Reliability Management 2005  

E-Print Network [OSTI]

to be Incorporated into the WECC Phasor Network PMU Locationand Validation in the WECC. ” IEEE Transactions on PowerkV line in the Portland area. WECC system was separated into

Eto, Joe

2008-01-01T23:59:59.000Z

275

Reliable Networking Infrastructures A Brief Overview of Research in Reliable Networking  

E-Print Network [OSTI]

Institute FOKUS, Berlin ++ www.fokus.fraunhofer.de/go/innovation ++ 11­2009 #12;Security Reliable Networking structure (RNI) Group Launched by Dr.Yacine Rebahi and Dragos Ving arzan at Fraunhofer FOKUS. Senior at the Fraunhofer FOKUS competence center NGNI. Prior to joining FOKUS in 2002, he worked at Ericsson in Voice over

Wichmann, Felix

276

An evaluation of the reliability and usefulness of external-initiator PRA (probabilistic risk analysis) methodologies  

SciTech Connect (OSTI)

The discipline of probabilistic risk analysis (PRA) has become so mature in recent years that it is now being used routinely to assist decision-making throughout the nuclear industry. This includes decision-making that affects design, construction, operation, maintenance, and regulation. Unfortunately, not all sub-areas within the larger discipline of PRA are equally mature,'' and therefore the many different types of engineering insights from PRA are not all equally reliable. 93 refs., 4 figs., 1 tab.

Budnitz, R.J.; Lambert, H.E. (Future Resources Associates, Inc., Berkeley, CA (USA))

1990-01-01T23:59:59.000Z

277

Advancing Usability Evaluation through Human Reliability Analysis  

SciTech Connect (OSTI)

This paper introduces a novel augmentation to the current heuristic usability evaluation methodology. The SPAR-H human reliability analysis method was developed for categorizing human performance in nuclear power plants. Despite the specialized use of SPAR-H for safety critical scenarios, the method also holds promise for use in commercial off-the-shelf software usability evaluations. The SPAR-H method shares task analysis underpinnings with human-computer interaction, and it can be easily adapted to incorporate usability heuristics as performance shaping factors. By assigning probabilistic modifiers to heuristics, it is possible to arrive at the usability error probability (UEP). This UEP is not a literal probability of error but nonetheless provides a quantitative basis to heuristic evaluation. When combined with a consequence matrix for usability errors, this method affords ready prioritization of usability issues.

Ronald L. Boring; David I. Gertman

2005-07-01T23:59:59.000Z

278

Increasing positive displacement charging pump reliability  

SciTech Connect (OSTI)

The use of positive displacement pumps in many PWRs is an integral part of providing reactivity control via the Chemical and Volume Control system. This usually requires the continuous operation of at least one pump, typically with a flow rate of 44 gpm {at} 2,310 psig (167 lpm {at} 160 bar). Some PWRs use multiple pumps, and vary the letdown, while others use variable speed pumps. Regardless, the charging pumps run continuously. With the amount of reciprocating mass, differential pressure, and friction, it is a battle to maintain the pumps in peak operating condition for long periods of time. This paper will show how Entergy Operations` Waterford 3 SES was able to increase the reliability of the positive displacement Charging Pumps. Many different solutions were evaluated, and several adopted. The results are undeniable, as availability has increased and O and M costs have been reduced by 90% over 6 years.

Wade, J.H. III [Entergy Operations, Inc., Killona, LA (United States)

1996-08-01T23:59:59.000Z

279

Reliability analysis of steel-containment strength  

SciTech Connect (OSTI)

A best estimate and uncertainty assessment of the resistance of the St. Lucie, Cherokee, Perry, WPPSS and Browns Ferry containment vessels was performed. The Monte Carlo simulation technique and second moment approach were compared as a means of calculating the probability distribution of the containment resistance. A uniform static internal pressure was used and strain ductility was taken as the failure criterion. Approximate methods were developed and calibrated with finite element analysis. Both approximate and finite element analyses were performed on the axisymmetric containment structure. An uncertainty assessment of the containment strength was then performed by the second moment reliability method. Based upon the approximate methods, the cumulative distribution for the resistance of each of the five containments (shell modes only) is presented.

Greimann, L.G.; Fanous, F.; Wold-Tinsae, A.; Ketalaar, D.; Lin, T.; Bluhm, D.

1982-06-01T23:59:59.000Z

280

HUMAN RELIABILITY ANALYSIS FOR COMPUTERIZED PROCEDURES  

SciTech Connect (OSTI)

This paper provides a characterization of human reliability analysis (HRA) issues for computerized procedures in nuclear power plant control rooms. It is beyond the scope of this paper to propose a new HRA approach or to recommend specific methods or refinements to those methods. Rather, this paper provides a review of HRA as applied to traditional paper-based procedures, followed by a discussion of what specific factors should additionally be considered in HRAs for computerized procedures. Performance shaping factors and failure modes unique to computerized procedures are highlighted. Since there is no definitive guide to HRA for paper-based procedures, this paper also serves to clarify the existing guidance on paper-based procedures before delving into the unique aspects of computerized procedures.

Ronald L. Boring; David I. Gertman; Katya Le Blanc

2011-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Nuclear Power - Control, Reliability and Human Factors  

E-Print Network [OSTI]

Instrumentation and Control 49 H.M. Hashemian Chapter 4 Design Considerations for the Implementation of a Mobile IP Telephony System in a Nuclear Power Plant 67 J. Garc?a-Hern?ndez, J. C. Vel?zquez- Hern?ndez, C. F. Garc?a-Hern?ndez and M. A. Vallejo-Alarc?n... Reliability K s e n i i a Sapoz h n i k o v a and Roald Tayma n o v D.I.Mendeleyev Institute for Metrology, Russia 1. Introduction At present, a great number of embedded sens o r devi c es provi d e monito r i n g of operat i n g condi t io n...

282

Human Reliability Analysis for Small Modular Reactors  

SciTech Connect (OSTI)

Because no human reliability analysis (HRA) method was specifically developed for small modular reactors (SMRs), the application of any current HRA method to SMRs represents tradeoffs. A first- generation HRA method like THERP provides clearly defined activity types, but these activity types do not map to the human-system interface or concept of operations confronting SMR operators. A second- generation HRA method like ATHEANA is flexible enough to be used for SMR applications, but there is currently insufficient guidance for the analyst, requiring considerably more first-of-a-kind analyses and extensive SMR expertise in order to complete a quality HRA. Although no current HRA method is optimized to SMRs, it is possible to use existing HRA methods to identify errors, incorporate them as human failure events in the probabilistic risk assessment (PRA), and quantify them. In this paper, we provided preliminary guidance to assist the human reliability analyst and reviewer in understanding how to apply current HRA methods to the domain of SMRs. While it is possible to perform a satisfactory HRA using existing HRA methods, ultimately it is desirable to formally incorporate SMR considerations into the methods. This may require the development of new HRA methods. More practicably, existing methods need to be adapted to incorporate SMRs. Such adaptations may take the form of guidance on the complex mapping between conventional light water reactors and small modular reactors. While many behaviors and activities are shared between current plants and SMRs, the methods must adapt if they are to perform a valid and accurate analysis of plant personnel performance in SMRs.

Ronald L. Boring; David I. Gertman

2012-06-01T23:59:59.000Z

283

Probabilistic fatigue methodology and wind turbine reliability  

SciTech Connect (OSTI)

Wind turbines subjected to highly irregular loadings due to wind, gravity, and gyroscopic effects are especially vulnerable to fatigue damage. The objective of this study is to develop and illustrate methods for the probabilistic analysis and design of fatigue-sensitive wind turbine components. A computer program (CYCLES) that estimates fatigue reliability of structural and mechanical components has been developed. A FORM/SORM analysis is used to compute failure probabilities and importance factors of the random variables. The limit state equation includes uncertainty in environmental loading, gross structural response, and local fatigue properties. Several techniques are shown to better study fatigue loads data. Common one-parameter models, such as the Rayleigh and exponential models are shown to produce dramatically different estimates of load distributions and fatigue damage. Improved fits may be achieved with the two-parameter Weibull model. High b values require better modeling of relatively large stress ranges; this is effectively done by matching at least two moments (Weibull) and better by matching still higher moments. For this purpose, a new, four-moment {open_quotes}generalized Weibull{close_quotes} model is introduced. Load and resistance factor design (LRFD) methodology for design against fatigue is proposed and demonstrated using data from two horizontal-axis wind turbines. To estimate fatigue damage, wind turbine blade loads have been represented by their first three statistical moments across a range of wind conditions. Based on the moments {mu}{sub 1}{hor_ellipsis}{mu}{sub 3}, new {open_quotes}quadratic Weibull{close_quotes} load distribution models are introduced. The fatigue reliability is found to be notably affected by the choice of load distribution model.

Lange, C.H. [Stanford Univ., CA (United States)

1996-05-01T23:59:59.000Z

284

Ashland Area Support Substation Project  

SciTech Connect (OSTI)

The Bonneville Power Administration (BPA) provides wholesale electric service to the City of Ashland (the City) by transferring power over Pacific Power Light Company's (PP L) 115-kilovolt (kV) transmission lines and through PP L's Ashland and Oak Knoll Substations. The City distributes power over a 12.5-kV system which is heavily loaded during winter peak periods and which has reached the limit of its ability to serve peak loads in a reliable manner. Peak loads under normal winter conditions have exceeded the ratings of the transformers at both the Ashland and Oak Knoll Substations. In 1989, the City modified its distribution system at the request of PP L to allow transfer of three megawatts (MW's) of electric power from the overloaded Ashland Substation to the Oak Knoll Substation. In cooperation with PP L, BPA installed a temporary 6-8 megavolt-amp (MVA) 115-12.5-kV transformer for this purpose. This additional transformer, however, is only a temporary remedy. BPA needs to provide additional, reliable long-term service to the Ashland area through additional transformation in order to keep similar power failures from occurring during upcoming winters in the Ashland area. The temporary installation of another 20-MVA mobile transformer at the Ashland Substation and additional load curtailment are currently being studied to provide for sustained electrical service by the peak winter period 1992. Two overall electrical plans-of-service are described and evaluated in this report. One of them is proposed for action. Within that proposed plan-of-service are location options for the substation. Note that descriptions of actions that may be taken by the City of Ashland are based on information provided by them.

Not Available

1992-06-01T23:59:59.000Z

285

ULTRA SECURE HIGH RELIABILITY WIRELESS RADIATION MONITOR  

SciTech Connect (OSTI)

Radiation monitoring in nuclear facilities is essential to safe operation of the equipment as well as protecting personnel. In specific, typical air monitoring of radioactive gases or particulate involves complex systems of valves, pumps, piping and electronics. The challenge is to measure a representative sample in areas that are radioactively contaminated. Running cables and piping to these locations is very expensive due to the containment requirements. Penetration into and out of an airborne or containment area is complex and costly. The process rooms are built with thick rebar-enforced concrete walls with glove box containment chambers inside. Figure 1 shows high temperature radiation resistance cabling entering the top of a typical glove box. In some case, the entire processing area must be contained in a 'hot cell' where the only access into the chamber is via manipulators. An example is shown in Figure 2. A short range wireless network provides an ideal communication link for transmitting the data from the radiation sensor to a 'clean area', or area absent of any radiation fields or radioactive contamination. Radiation monitoring systems that protect personnel and equipment must meet stringent codes and standards due to the consequences of failure. At first glance a wired system would seem more desirable. Concerns with wireless communication include latency, jamming, spoofing, man in the middle attacks, and hacking. The Department of Energy's Savannah River National Laboratory (SRNL) has developed a prototype wireless radiation air monitoring system that address many of the concerns with wireless and allows quick deployment in radiation and contamination areas. It is stand alone and only requires a standard 120 VAC, 60 Hz power source. It is designed to be mounted or portable. The wireless link uses a National Security Agency (NSA) Suite B compliant wireless network from Fortress Technologies that is considered robust enough to be used for classified data transmission in place of NSA Type 1 devices.

Cordaro, J.; Shull, D.; Farrar, M.; Reeves, G.

2011-08-03T23:59:59.000Z

286

Reliability and validity of brief psychosocial measures related to dietary behaviors  

E-Print Network [OSTI]

as: Norman et al. , Reliability and validity of brief46. 31. Shrout PE: Measurement reliability and agreement inRESEARCH Open Access Reliability and validity of brief

Norman, Gregory J; Carlson, Jordan A; Sallis, James F; Wagner, Nicole; Calfas, Karen J; Patrick, Kevin

2010-01-01T23:59:59.000Z

287

E-Print Network 3.0 - assessing system reliability Sample Search...  

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

reliability Search Powered by Explorit Topic List Advanced Search Sample search results for: assessing system reliability Page: << < 1 2 3 4 5 > >> 1 Reliability Based...

288

Reliability-based framework for fatigue damage prognosis of bonded structural elements in aerospace composite structures  

E-Print Network [OSTI]

H. Asada, and S. Ito, Reliability of aircraft structuresH.O. Madsen, Structural reliability methods , Wiley, WestH. Asada, and S. Ito, Reliability of aircraft structures

Gobbato, Maurizio

2011-01-01T23:59:59.000Z

289

Reliability-based characterization of prefabricated FRP composites for rehabilitation of concrete structures  

E-Print Network [OSTI]

of Material Variability in Reliability Analysis of FRPStatistical Analysis of Reliability and Life-Testing Models,SE 224: Structural Reliability and Risk Analysis, Course

Jin, Sung-Jun

2008-01-01T23:59:59.000Z

290

Investigation of the Role of Trap States in Solar Cell Reliability using Photothermal Deflection Spectroscopy  

E-Print Network [OSTI]

of PV materials Reliability of photovoltaic materials isof photovoltaic (PV) technologies. PV reliability andPhotovoltaic’s Properties and Characterization .. 9 1.5. Degradation and Reliability

Bezryadina, Anna Sergeyevna

2012-01-01T23:59:59.000Z

291

Reliability Engineering and System Safety 92 (2007) 15631583 Using fuzzy self-organising maps for safety critical systems  

E-Print Network [OSTI]

, the underpinning of the devised model is based upon an existing neuro-fuzzy system called the fuzzy self conventional methods [1] in areas of pattern recognition and function approximation. They are good toolsReliability Engineering and System Safety 92 (2007) 1563­1583 Using fuzzy self-organising maps

Kelly, Tim

292

Load Response Fundamentally Matches Power System Reliability Requirements  

SciTech Connect (OSTI)

Responsive load is the most underutilized reliability resource available to the power system. Loads are frequently barred from providing the highest value and most critical reliability services; regulation and spinning reserve. Advances in communications and control technology now make it possible for some loads to provide both of these services. The limited storage incorporated in some loads better matches their response capabilities to the fast reliability-service markets than to the hourly energy markets. Responsive loads are frequently significantly faster and more accurate than generators, increasing power system reliability. Incorporating fast load response into microgrids further extends the reliability response capabilities that can be offered to the interconnected power system. The paper discusses the desired reliability responses, why this matches some loads' capabilities, what the advantages are for the power system, implications for communications and monitoring requirements, and how this resource can be exploited.

Kirby, Brendan J [ORNL] [ORNL

2007-01-01T23:59:59.000Z

293

Computational Thermochemistry and Benchmarking of Reliable Methods  

SciTech Connect (OSTI)

During the first and second years of the Computational Thermochemistry and Benchmarking of Reliable Methods project, we completed several studies using the parallel computing capabilities of the NWChem software and Molecular Science Computing Facility (MSCF), including large-scale density functional theory (DFT), second-order Moeller-Plesset (MP2) perturbation theory, and CCSD(T) calculations. During the third year, we continued to pursue the computational thermodynamic and benchmarking studies outlined in our proposal. With the issues affecting the robustness of the coupled cluster part of NWChem resolved, we pursued studies of the heats-of-formation of compounds containing 5 to 7 first- and/or second-row elements and approximately 10 to 14 hydrogens. The size of these systems, when combined with the large basis sets (cc-pVQZ and aug-cc-pVQZ) that are necessary for extrapolating to the complete basis set limit, creates a formidable computational challenge, for which NWChem on NWMPP1 is well suited.

Feller, David F.; Dixon, David A.; Dunning, Thom H.; Dupuis, Michel; McClemore, Doug; Peterson, Kirk A.; Xantheas, Sotiris S.; Bernholdt, David E.; Windus, Theresa L.; Chalasinski, Grzegorz; Fosada, Rubicelia; Olguim, Jorge; Dobbs, Kerwin D.; Frurip, Donald; Stevens, Walter J.; Rondan, Nelson; Chase, Jared M.; Nichols, Jeffrey A.

2006-06-20T23:59:59.000Z

294

Individual Differences in Human Reliability Analysis  

SciTech Connect (OSTI)

While human reliability analysis (HRA) methods include uncertainty in quantification, the nominal model of human error in HRA typically assumes that operator performance does not vary significantly when they are given the same initiating event, indicators, procedures, and training, and that any differences in operator performance are simply aleatory (i.e., random). While this assumption generally holds true when performing routine actions, variability in operator response has been observed in multiple studies, especially in complex situations that go beyond training and procedures. As such, complexity can lead to differences in operator performance (e.g., operator understanding and decision-making). Furthermore, psychological research has shown that there are a number of known antecedents (i.e., attributable causes) that consistently contribute to observable and systematically measurable (i.e., not random) differences in behavior. This paper reviews examples of individual differences taken from operational experience and the psychological literature. The impact of these differences in human behavior and their implications for HRA are then discussed. We propose that individual differences should not be treated as aleatory, but rather as epistemic. Ultimately, by understanding the sources of individual differences, it is possible to remove some epistemic uncertainty from analyses.

Jeffrey C. Joe; Ronald L. Boring

2014-06-01T23:59:59.000Z

295

High reliability plastic packaging for microelectronics  

SciTech Connect (OSTI)

Goal was Assembly Test Chips (ATCs) which could be used for evaluating plastic encapsulation technologies. Circuits were demonstrated for measuring Au-Al wirebond and Al metal corrosion failure rates during accelerated temperature and humidity testing. The test circuits on the ATC02.5 chip were very sensitive to extrinsic or processing induced failure rates. Accelerated aging experiments were conducted with unpassivated triple track Al structures on the ATC02.6 chip; the unpassivated tracks were found to be very sensitive to particulate contamination. Some modifications to existing circuitry were suggested. The piezoresistive stress sensing circuitry designed for the ATC04 test chip was found suitable for determining the change in the state of mechanical stress at the die when both initial and final measurements were made near room temperature (RT). Attempt to measure thermal stress between RT and a typical polymer glass transition temperature failed because of excessive die resistor- substrate leakage currents at the high temperature end; suitable circuitry changes were developed to overcome this problem. One temperature and humidity experiment was conducted with Sandia developed static radom access memory parts to examine non-corrosion CMOS failures; this objective was not achieved, but corrosion failure at the metal to Si contacts on the die surface could be detected. This 2-year effort resulted in new designs for test circuits which could be used on an advanced ATC for reliability assessment in Defense Programs electronics development projects.

Sweet, J.N.; Peterson, D.W.; Hsia, A.H.; Tuck, M.

1997-07-01T23:59:59.000Z

296

Hydrologically Sensitive Areas: Variable Source Area Hydrology  

E-Print Network [OSTI]

Hydrologically Sensitive Areas: Variable Source Area Hydrology Implications for Water Quality Risk hydrology was developed and applied to the New York City (NYC) water supply watersheds. According and are therefore hydrologically sensitive with respect to their potential to transport contaminants to perennial

Walter, M.Todd

297

Thermal Stress and Reliability for Advanced Power Electronics...  

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

D.C. ape017okeefe2010o.pdf More Documents & Publications Thermal Performance and Reliability of Bonded Interfaces Physics of Failure of Electrical Interconnects Thermal Stress...

298

SciTech Connect: Improved Wind Turbine Drivetrain Reliability...  

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

Improved Wind Turbine Drivetrain Reliability using a Combined Experimental, Computational, and Analytical Approach (Presentation) Citation Details In-Document Search Title:...

299

Optimization Online - Assessing the reliability of general-purpose ...  

E-Print Network [OSTI]

Apr 3, 2014 ... Assessing the reliability of general-purpose Inexact Restoration methods. E. G. Birgin(egbirgin ***at*** ime.usp.br) L. F. Bueno(lfelipebueno ...

E. G. Birgin

2014-04-03T23:59:59.000Z

300

Thermal Stress and Reliability for Advanced Power Electronics...  

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

Washington D.C. ape14okeefe.pdf More Documents & Publications Thermal Stress and Reliability for Advanced Power Electronics and Electric Machines Power Electronic Thermal...

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Physics-Based Stress Corrosion Cracking Component Reliability  

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

Physics-Based Stress Corrosion Cracking Component Reliability Model cast in an R7-Compatible Cumulative Damage Framework Draft Report Supporting Technology Inputs to the Risk-...

302

Electro-thermal-mechanical Simulation and Reliability for Plug...  

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

More Documents & Publications Electro-thermal-mechanical Simulation and Reliability for Plug-in Vehicle Converters and Inverters Electro-thermal-mechanical Simulation...

303

Manufacturing Metrology for c-Si Module Reliability/Durabiltiy  

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

Manufacturing Metrology for c-Si Module ReliabilityDurability Marianne P. Rodgers Marianne P. Rodgers Ashwani Kaul Kristopher O. Davis Neelkanth G. Dhere Hubert...

304

Forward Capacity Markets: Maintaining Grid Reliability in Europe.  

E-Print Network [OSTI]

?? The liberalization process of the electricity industry in many countries leads to new rules and new challenges for the grid management. System reliability is… (more)

Chaigneau, Matthieu

2012-01-01T23:59:59.000Z

305

Power Electronics Reliability Kick Off Meeting ? Silicon Power...  

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

Validated Through Broad Use Boating Defense Machine Tool Wind Energy Semiconductors Health Care 2 Project Goals * Better understand the current and future reliability of...

306

Improved Wind Turbine Drivetrain Reliability using a Combined...  

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

IMPROVED WIND TURBINE DRIVETRAIN RELIABILITY USING A COMBINED EXPERIMENTAL, COMPUTATIONAL, AND ANALYTICAL APPROACH Yi Guo 1,* , Roger Bergua 2 , Jeroen van Dam 1 , Jordi Jove 2 ,...

307

Imprecise reliability by evidential networks Christophe SIMON and Philippe WEBER  

E-Print Network [OSTI]

Imprecise reliability by evidential networks Christophe SIMON and Philippe WEBER October 3, 2008 to adequately tell variability from imprecision. Many representations exist C. Simon and Ph. Weber

Boyer, Edmond

308

Competition and Reliability in North American Electricity Markets...  

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

Blackout 2003: Electric System Working Group Technical Conference - Comments and Recommendations Competition and Reliability in North American Energy Markets: Issue Paper Synopses...

309

Competition and Reliability in North American Energy Markets...  

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

Energy Markets: Issue Paper Synopses Competition and Reliability in North American Energy Markets: Issue Paper Synopses Jack Casazza, Frank Delea, and George Loehr argue that...

310

Gearbox Reliability Collaborative Experimental Data Overview & Analysis (Presentation)  

SciTech Connect (OSTI)

This presentation details how wind turbine gearboxes fail to meet 20-year design life and how the Gearbox Reliability Collaborative (GRC) is addressing the challenges.

Oyague, F.

2010-05-01T23:59:59.000Z

311

Office of Electricity Delivery And Energy Reliability To Hold...  

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

Office of Electricity Delivery And Energy Reliability To Hold Technical Conference On The Design Of Future Electric Transmission Office of Electricity Delivery And Energy...

312

Office of Electricity Delivery and Energy Reliability, OE-20  

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

9 January, 2012 Office of Electricity Delivery and Energy Reliability, OE-20 U.S. Department of Energy 1000 Independence Avenue SW Washington, DC 20585 Greetings: The Wyoming...

313

Office of Electricity Delivery and Energy Reliability | Department...  

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

& Internships Funding Opportunities Information Center Contact Us Energy.gov Office of Electricity Delivery & Energy Reliability 1000 Independence Avenue, SW Washington, DC...

314

NREL Gearbox Reliability Collaborative Analysis Round Robin: Preprint  

SciTech Connect (OSTI)

The Gearbox Reliability Collaborative is working to determine the causes and loading conditions that result in the premature failure of wind turbine gearboxes.

Oyague, F.; Butterfield, C. P.; Sheng, S.

2009-05-01T23:59:59.000Z

315

Smart Grid: Creating Jobs while Delivering Reliable,Environmentally...  

Open Energy Info (EERE)

Smart Grid: Creating Jobs while Delivering Reliable, Environmentally-friendly Energy Home > Groups > OpenEI Community Central Graham7781's picture Submitted by Graham7781(2017)...

316

AREA COORDINATOR RESIDENTIAL EDUCATION  

E-Print Network [OSTI]

AREA COORDINATOR RESIDENTIAL EDUCATION VANDERBILT UNIVERSITY, NASHVILLE, TENNESSEE The Office of Housing and Residential Education at Vanderbilt University is seeking applicants for an Area Coordinator. The Area Coordinator is responsible for assisting in the management and operation of a residential area

Bordenstein, Seth

317

Distributed Generation Operational Reliability, Executive Summary Report,  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent(CRADA and DOW Area 5

318

Chisel: Reliability-and Accuracy-Aware Optimization of Approximate Computational Kernels  

E-Print Network [OSTI]

Chisel: Reliability- and Accuracy-Aware Optimization of Approximate Computational Kernels Sasa produces and the corre- sponding fully accurate result. The reliability of the computation performance, exhibit reduced reliability and/or accuracy. We present Chisel, a system for reliability

Suresh, Subra

319

Reliability in Comparative and Ethnographic Observations: The Example of High Inference  

E-Print Network [OSTI]

Reliability in Comparative and Ethnographic Observations: The Example of High Inference Father 92697 ABSTRACT: The theory of reliability and reliability estimates, nearly a century old, has rarely the reliabilities of composite measurement scales combining multiple measures, of individual independent

White, Douglas R.

320

Integrating Photovoltaic Inverter Reliability into Energy Yield Estimation with Markov Models  

E-Print Network [OSTI]

Integrating Photovoltaic Inverter Reliability into Energy Yield Estimation with Markov Models@illinois.edu Abstract-- Markov reliability models to estimate Photovoltaic (PV) inverter reliability of the inverters. Keywords-Photovoltaic energy conversion, Markov reliability models, utility-interactive inverters

Liberzon, Daniel

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Gearbox Reliability Collaborative Project Report: Findings from Phase 1 and Phase 2 Testing  

SciTech Connect (OSTI)

This report describes the Gearbox Reliability Collaborative's work at NREL to increase the reliability of wind turbine gearboxes.

Link, H.; LaCava, W.; van Dam, J.; McNiff, B.; Sheng, S.; Wallen, R.; McDade, M.; Lambert, S.; Butterfield, S.; Oyague, F.

2011-06-01T23:59:59.000Z

322

Wireless Sensor Networks in the Area of Medical  

E-Print Network [OSTI]

by the nodes. WSNs are currently at the center of many research projects in a range of application areas, this research will focus on small networks to be used in the medical field where performance & reliability cost, low maintenance ­ Energy-efficient ­ Small form factor, unobtrusive · Applications ­ Industrial

Narasayya, Vivek

323

Distributed Generation Operational Reliability and Availability Database,  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent(CRADA and DOW Area 5 LLRWDistributedDepartmentFinal

324

Novel Low Cost, High Reliability Wind Turbine Drivetrain  

SciTech Connect (OSTI)

Clipper Windpower, in collaboration with United Technologies Research Center, the National Renewable Energy Laboratory, and Hamilton Sundstrand Corporation, developed a low-cost, deflection-compliant, reliable, and serviceable chain drive speed increaser. This chain and sprocket drivetrain design offers significant breakthroughs in the areas of cost and serviceability and addresses the key challenges of current geared and direct-drive systems. The use of gearboxes has proven to be challenging; the large torques and bending loads associated with use in large multi-MW wind applications have generally limited demonstrated lifetime to 8-10 years [1]. The large cost of gearbox replacement and the required use of large, expensive cranes can result in gearbox replacement costs on the order of $1M, representing a significant impact to overall cost of energy (COE). Direct-drive machines eliminate the gearbox, thereby targeting increased reliability and reduced life-cycle cost. However, the slow rotational speeds require very large and costly generators, which also typically have an undesirable dependence on expensive rare-earth magnet materials and large structural penalties for precise air gap control. The cost of rare-earth materials has increased 20X in the last 8 years representing a key risk to ever realizing the promised cost of energy reductions from direct-drive generators. A common challenge to both geared and direct drive architectures is a limited ability to manage input shaft deflections. The proposed Clipper drivetrain is deflection-compliant, insulating later drivetrain stages and generators from off-axis loads. The system is modular, allowing for all key parts to be removed and replaced without the use of a high capacity crane. Finally, the technology modularity allows for scalability and many possible drivetrain topologies. These benefits enable reductions in drivetrain capital cost by 10.0%, levelized replacement and O&M costs by 26.7%, and overall cost of energy by 10.2%. This design was achieved by: (1) performing an extensive optimization study that deter-mined the preliminary cost for all practical chain drive topologies to ensure the most competitive configuration; (2) conducting detailed analysis of chain dynamics, contact stresses, and wear and efficiency characteristics over the chain�������¢����������������s life to ensure accurate physics-based predictions of chain performance; and (3) developing a final product design, including reliability analysis, chain replacement procedures, and bearing and sprocket analysis. Definition of this final product configuration was used to develop refined cost of energy estimates. Finally, key system risks for the chain drive were defined and a comprehensive risk reduction plan was created for execution in Phase 2.

Anthony Chobot; Debarshi Das; Tyler Mayer; Zach Markey; Tim Martinson; Hayden Reeve; Paul Attridge; Tahany El-Wardany

2012-09-13T23:59:59.000Z

325

MARKETS FOR REACTIVE POWER AND RELIABILITY: A WHITE PAPER  

E-Print Network [OSTI]

1 MARKETS FOR REACTIVE POWER AND RELIABILITY: A WHITE PAPER Engineering and Economics of Electricity Research Group (E3 RG) CORNELL UNIVERSITY E3 RG contributing authors: Robert Thomas, Director the Consortium for Electric Reliability Technology Solutions (CERTS) and in part by the National Science

326

IEEE TRANSACTIONS ON RELIABILITY 1 Optimal Maintenance Strategies for Wind  

E-Print Network [OSTI]

from sensors, our research objective is to derive an optimal observation and preventive maintenance TRANSACTIONS ON RELIABILITY 3 ACRONYMS NA no action PM preventive maintenance OB observation CM correctiveIEEE TRANSACTIONS ON RELIABILITY 1 Optimal Maintenance Strategies for Wind Turbine Systems Under

Ntaimo, Lewis

327

Gearbox Reliability Collaborative High Speed Shaft Tapered Roller Bearing Calibration  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory (NREL) Gearbox Reliability Collaborative (GRC) is a project investigating gearbox reliability primarily through testing and modeling. Previous dynamometer testing focused upon acquiring measurements in the planetary section of the test gearbox. Prior to these tests, the strain gages installed on the planetary bearings were calibrated in a load frame.

Keller, J.; Guo, Y.; McNiff, B.

2013-10-01T23:59:59.000Z

328

Dynamically Quantifying and Improving the Reliability of Distributed Storage Systems  

E-Print Network [OSTI]

Dynamically Quantifying and Improving the Reliability of Distributed Storage Systems Rekha Bachwani-scale storage systems can be significantly improved by using bet- ter reliability metrics and more efficient on a distributed storage system based on erasure codes. We find that MinI improves relia- bility significantly

Bianchini, Ricardo

329

Maximizing Service Reliability in Distributed Computing Systems with Random Node  

E-Print Network [OSTI]

Maximizing Service Reliability in Distributed Computing Systems with Random Node Failures: Theory Member, IEEE Abstract--In distributed computing systems (DCSs) where server nodes can fail permanently with nonzero probability, the system performance can be assessed by means of the service reliability, defined

Hayat, Majeed M.

330

A summary of North American HVDC converter station reliability specifications  

SciTech Connect (OSTI)

This paper summarizes Reliability, Availability, and Maintainability (RAM) specifications that were issued for thyristor based HVDC converter stations in service in North America. A total of twenty project specifications are summarized. A detailed summary by project is shown with specific quantitative requirements categorized. Definitions of terms, representative design principles, and formulas used in calculating RAM parameters contained in existing reliability specifications are presented.

Vancers, I. (ABB Power Systems Inc., Los Angeles, CA (United States)); Hormozi, F.J. (Los Angeles Dept. of Water and Power, CA (United States))

1993-07-01T23:59:59.000Z

331

UNCORRECTED Reliability analysis of hybrid ceramic/steel gun barrels  

E-Print Network [OSTI]

UNCORRECTED PROOF Reliability analysis of hybrid ceramic/steel gun barrels M. GRUJICIC1 , J. R-5069, USA Received in final form 25 February 2002 AB ST R AC T Failure of the ceramic gun-barrel lining probability for the lining is also discussed. Keywords failure; gun-barrel lining; reliability; thermo

Grujicic, Mica

332

Nuclear Decommissioning and Organisational Reliability: Involving Subcontractors in Collective Action  

E-Print Network [OSTI]

Page 1 Nuclear Decommissioning and Organisational Reliability: Involving Subcontractors to the decommissioning. The use of subcontractors is not new; in the nuclear industry it became widespread in the 1990s reliability is at the heart of the safety of at-risk systems. Many studies have been conducted in the nuclear

Paris-Sud XI, Université de

333

Assessing the reliability of linear dynamic transformer thermal modelling  

E-Print Network [OSTI]

Assessing the reliability of linear dynamic transformer thermal modelling X. Mao, D.J. Tylavsky and G.A. McCulla Abstract: Improving the utilisation of transformers requires that the hot-spot and top. An alternative method for assessing transformer model reliability is provided. 1 Introduction The maximally

334

Wind turbine reliability : a database and analysis approach.  

SciTech Connect (OSTI)

The US wind Industry has experienced remarkable growth since the turn of the century. At the same time, the physical size and electrical generation capabilities of wind turbines has also experienced remarkable growth. As the market continues to expand, and as wind generation continues to gain a significant share of the generation portfolio, the reliability of wind turbine technology becomes increasingly important. This report addresses how operations and maintenance costs are related to unreliability - that is the failures experienced by systems and components. Reliability tools are demonstrated, data needed to understand and catalog failure events is described, and practical wind turbine reliability models are illustrated, including preliminary results. This report also presents a continuing process of how to proceed with controlling industry requirements, needs, and expectations related to Reliability, Availability, Maintainability, and Safety. A simply stated goal of this process is to better understand and to improve the operable reliability of wind turbine installations.

Linsday, James (ARES Corporation); Briand, Daniel; Hill, Roger Ray; Stinebaugh, Jennifer A.; Benjamin, Allan S. (ARES Corporation)

2008-02-01T23:59:59.000Z

335

Systems reliability analysis for the national ignition facility  

SciTech Connect (OSTI)

A Reliability, Availability and Maintainability (RAM) analysis was initiated for the National Ignition Facility (NIF). The NIF is an inertial confinement fusion research facility designed to achieve controlled thermonuclear reaction; the preferred site for the NIF is the Lawrence Livermore National Laboratory (LLNL). The NIF RAM analysis has three purposes: (1) to allocate top level reliability and availability goals for the systems, (2) to develop an operability model for optimum maintainability, and (3) to determine the achievability of the allocated goals of the RAM parameters for the NIF systems and the facility operation as a whole. An allocation model assigns the reliability and availability goals for front line and support systems by a top-down approach; reliability analysis uses a bottom-up approach to determine the system reliability and availability from component level to system level.

Majumdar, K.C.; Annese, C.E.; MacIntyre, A.T.; Sicherman, A.

1996-06-12T23:59:59.000Z

336

Geothermal br Resource br Area Geothermal br Resource br Area...  

Open Energy Info (EERE)

Basalt K Eburru Geothermal Area Eburru Geothermal Area East African Rift System Kenya Rift Basalt Fukushima Geothermal Area Fukushima Geothermal Area Northeast Honshu Arc...

337

CERTS: Consortium for Electric Reliability Technology Solutions - Research Highlights  

SciTech Connect (OSTI)

Historically, the U.S. electric power industry was vertically integrated, and utilities were responsible for system planning, operations, and reliability management. As the nation moves to a competitive market structure, these functions have been disaggregated, and no single entity is responsible for reliability management. As a result, new tools, technologies, systems, and management processes are needed to manage the reliability of the electricity grid. However, a number of simultaneous trends prevent electricity market participants from pursuing development of these reliability tools: utilities are preoccupied with restructuring their businesses, research funding has declined, and the formation of Independent System Operators (ISOs) and Regional Transmission Organizations (RTOs) to operate the grid means that control of transmission assets is separate from ownership of these assets; at the same time, business uncertainty, and changing regulatory policies have created a climate in which needed investment for transmission infrastructure and tools for reliability management has dried up. To address the resulting emerging gaps in reliability R&D, CERTS has undertaken much-needed public interest research on reliability technologies for the electricity grid. CERTS' vision is to: (1) Transform the electricity grid into an intelligent network that can sense and respond automatically to changing flows of power and emerging problems; (2) Enhance reliability management through market mechanisms, including transparency of real-time information on the status of the grid; (3) Empower customers to manage their energy use and reliability needs in response to real-time market price signals; and (4) Seamlessly integrate distributed technologies--including those for generation, storage, controls, and communications--to support the reliability needs of both the grid and individual customers.

Eto, Joseph

2003-07-30T23:59:59.000Z

338

METROPOLITAN STATISTICAL AREA  

E-Print Network [OSTI]

METROPOLITAN STATISTICAL AREA OUTLOOK MORGANTOWN COLLEGE OF BUSINESS AND ECONOMICS Bureau to be repeated over the next five years. The Morgantown Metropolitan Statistical Area (MSA) had an average annual

Mohaghegh, Shahab

339

Wetland Preservation Areas (Minnesota)  

Broader source: Energy.gov [DOE]

A wetland owner can apply to the host county for designation of a wetland preservation area. Once designated, the area remains designated until the owner initiates expiration, except where a state...

340

Wildlife Management Areas (Maryland)  

Broader source: Energy.gov [DOE]

Wildlife Management Areas exist in the State of Maryland as wildlife sanctuaries, and vehicles, tree removal, and construction are severely restricted in these areas. Some of these species are also...

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Protected Areas Stacy Philpott  

E-Print Network [OSTI]

· Convention of Biological Diversity, 1992 #12;IUCN Protected Area Management Categories Ia. Strict Nature. Protected Landscape/ Seascape VI. Managed Resource Protected Area #12;Ia. Strict Nature Preserves and Ib. Wilderness Areas · Natural preservation · Research · No · No #12;II. National Parks · Ecosystem protection

Gottgens, Hans

342

100-F/IU Area ROD  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-on halloweenReliable solar:2 OFsupports national securityArea

343

Robust Design of Reliability Test Plans Using Degradation Measures.  

SciTech Connect (OSTI)

With short production development times, there is an increased need to demonstrate product reliability relatively quickly with minimal testing. In such cases there may be few if any observed failures. Thus, it may be difficult to assess reliability using the traditional reliability test plans that measure only time (or cycles) to failure. For many components, degradation measures will contain important information about performance and reliability. These measures can be used to design a minimal test plan, in terms of number of units placed on test and duration of the test, necessary to demonstrate a reliability goal. Generally, the assumption is made that the error associated with a degradation measure follows a known distribution, usually normal, although in practice cases may arise where that assumption is not valid. In this paper, we examine such degradation measures, both simulated and real, and present non-parametric methods to demonstrate reliability and to develop reliability test plans for the future production of components with this form of degradation.

Lane, Jonathan Wesley; Lane, Jonathan Wesley; Crowder, Stephen V.; Crowder, Stephen V.

2014-10-01T23:59:59.000Z

344

Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability.pdf  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomen Owned SmallOf The 2012NuclearBradley Nickell02-03 AUDIT REPORTWas

345

DOE Designates Southwest Area and Mid-Atlantic Area National...  

Office of Environmental Management (EM)

Addthis WASHINGTON, DC - U.S. Department of Energy (DOE) Assistant Secretary for Electricity Delivery and Energy Reliability Kevin M. Kolevar today announced the Department's...

346

Performance and Reliability of Bonded Interfaces for High-Temperature Packaging (Presentation)  

SciTech Connect (OSTI)

The thermal performance and reliability of sintered-silver is being evaluated for power electronics packaging applications. This will be experimentally accomplished by the synthesis of large-area bonded interfaces between metalized substrates that will be subsequently subjected to thermal cycles. A finite element model of crack initiation and propagation in these bonded interfaces will allow for the interpretation of degradation rates by a crack-velocity (V)-stress intensity factor (K) analysis. The experiment is outlined, and the modeling approach is discussed.

Devoto, D.

2014-11-01T23:59:59.000Z

347

Playas Grid Reliability and Distributed Energy Research  

SciTech Connect (OSTI)

The future looks bright for solar and renewable energies in the United States. Recent studies claim that by 2050, solar power could supply a third of all electricity demand in the country’s western states. Technology advances, soft policy changes, and increased energy consciousness will all have to happen to achieve this goal. But the larger question is, what would it take to do more throughout the United States? The studies tie future solar and renewable growth in the United States to programs that aim to lower the soft costs of solar adoption, streamline utility interconnections, and increase technology advances through research and development. At the state and local levels, the most important steps are: • Net metering: Net metering policies lets customers offset their electric bills with onsite solar and receive reliable and fair compensation for the excess electricity they provide to the grid. Not surprisingly, what utilities consider fair is not necessarily a rate that’s favorable to solar customers. • Renewable portfolio standards (RPS): RPS policies require utilities to provide a certain amount of their power from renewable sources; some set specific targets for solar and other renewables. California’s aggressive RPS1 of 33% renewable energy by 2020 is not bankrupting the state, or its residents. • Strong statewide interconnection policies: Solar projects can experience significant delays and hassles just to get connected to the grid. Streamlined feasibility and impact analysis are needed. Good interconnection policies are crucial to the success of solar or renewable energy development. • Financing options: Financing is often the biggest obstacle to solar adoption. Those obstacles can be surmounted with policies that support creative financing options like third-party ownership (TPO) and property assessed clean energy (PACE). Attesting to the significance of TPO is the fact that in Arizona, it accounted for 86% of all residential photovoltaic (PV) installations in Q1 20132. Policies beyond those at the state level are also important for solar. The federal government must play a role including continuation of the federal Investment tax credit,3 responsible development of solar resources on public lands, and support for research and development (R&D) to reduce the cost of solar and help incorporate large amounts of solar into the grid. The local level can’t be ignored. Local governments should support: solar rights laws, feed-in tariffs (FITs), and solar-friendly zoning rules. A great example of how effective local policies can be is a city like Gainesville, Florida4, whose FIT policy has put it on the map as a solar leader. This is particularly noteworthy because the Sunshine State does not appear anywhere on the list of top solar states, despite its abundant solar resource. Lancaster, California5, began by streamlining the solar permitting process and now requires solar on every new home. Cities like these point to the power of local policies, and the ability of local governments to get things done. A conspicuously absent policy is Community Choice energy6, also called community choice aggregation (CCA). This model allows local governments to pool residential, business, and municipal electricity loads and to purchase or generate on their behalf. It provides rate stability and savings and allows more consumer choice and local control. The model need not be focused on clean energy, but it has been in California, where Marin Clean Energy7, the first CCA in California, was enabled by a state law -- highlighting the interplay of state and local action. Basic net metering8 has been getting a lot of attention. Utilities are attacking it9 in a number of states, claiming it’s unfair to ratepayers who don’t go solar. On the other hand, proponents of net metering say utilities’ fighting stance is driven by worries about their bottom line, not concern for their customers. Studies in California10, Vermont11, New York12, and Texas13 have found that the benefits of net metering (like savings on investments

Romero, Van; Weinkauf, Don; Khan, Mushtaq; Helgeson, Wes; Weedeward, Kevin; LeClerc, Corey; Fuierer, Paul

2012-06-30T23:59:59.000Z

348

RELIABILITY OF WIND POWER FROM DISPERSED SITES: A PRELIMINARY ASSESSMENT  

E-Print Network [OSTI]

ON METHODOLOGY: FROM WIND POWER FREQUENCY TO LOSS-OF-LOADJ.P. , "Some Aspects of Wind Power Statistics, " J. of Appl.SŁCTION Reliability of Wind Power From Dispersed Sites: A Pr

Kahn, E.

2011-01-01T23:59:59.000Z

349

Reliability in layered networks with random link failures  

E-Print Network [OSTI]

We consider network reliability in layered networks where the lower layer experiences random link failures. In layered networks, each failure at the lower layer may lead to multiple failures at the upper layer. We generalize ...

Lee, Kayi

350

Request for Information: Photovoltaic Reliability and Durability Research and Development  

Broader source: Energy.gov [DOE]

The United States Department of Energy (DOE) – Office of Energy Efficiency and Renewable Energy (EERE) seeks feedback from industry, academia, research laboratories, government agencies, and other stakeholders on issues related to solar photovoltaic (PV) reliability and durability research and development.

351

Reliability improvement project decision making : water cooling system redesign  

E-Print Network [OSTI]

Deciding on which reliability & performance improvement projects to launch or to reject has historically been an extremely challenging responsibility of Teradyne management. Incorrect decisions can lead to major customer ...

Devine, Paul (Paul S.)

2006-01-01T23:59:59.000Z

352

Empirical Measurements of Travelers' Value of Travel Time Reliability  

E-Print Network [OSTI]

Travel time and travel time reliability are two fundamental factors influencing travel behavior and demand. The concept of the value of time (VOT) has been extensively studied, and estimates of VOT have been obtained from surveys and empirical data...

Danda, Santosh Rao

2014-08-12T23:59:59.000Z

353

A reliability assessment methodology for distribution systems with distributed generation  

E-Print Network [OSTI]

Reliability assessment is of primary importance in designing and planning distribution systems that operate in an economic manner with minimal interruption of customer loads. With the advances in renewable energy sources, Distributed Generation (DG...

Duttagupta, Suchismita Sujaya

2006-08-16T23:59:59.000Z

354

Dave, Corbus, Energy Reliability in a Changing Landscape  

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

Energy Reliability in a Changing Landscape Dave Corbus Laboratory Program Manager, Electricity Systems Federal U )lity P artnership Working G roup M ee)ng January 1 415 th , 2 014...

355

Reliability-based Design of Offshore Mooring Systems  

E-Print Network [OSTI]

This study proposes new methods for the reliability-based design of structural systems, with emphasis on offshore mooring systems. After a brief introduction to the mooring systems, two main objectives are discussed in this dissertation. The first...

Mousavi, Mir Emad

2013-02-05T23:59:59.000Z

356

Steve, Kiesner, Energy Reliability in a Changing Landscape  

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

Energy Reliability in a Changing L andscape Steve K iesner D irector, N ational Customer M arkets Edison E lectric I nstitute FUPWG January 1 4, 2 014 Industry Infrastructure...

357

Travel Time Reliability: Its Measurement and Prediction | ornl...  

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

Success Stories Contact Us Index Home | ORNL | Events and Conferences Travel Time Reliability: Its Measurement and Prediction Apr 02 2014 10:00 AM - 11:00 AM George List, North...

358

FFTF (Fast Flux Test Facility) reactor shutdown system reliability reevaluation  

SciTech Connect (OSTI)

The reliability analysis of the Fast Flux Test Facility reactor shutdown system was reevaluated. Failure information based on five years of plant operating experience was used to verify original reliability numbers or to establish new ones. Also, system modifications made subsequent to performance of the original analysis were incorporated into the reevaluation. Reliability calculations and sensitivity analyses were performed using a commercially available spreadsheet on a personal computer. The spreadsheet was configured so that future failures could be tracked and compared with expected failures. A number of recommendations resulted from the reevaluation including both increased and decreased surveillance intervals. All recommendations were based on meeting or exceeding existing reliability goals. Considerable cost savings will be incurred upon implementation of the recommendations.

Pierce, B.F.

1986-07-01T23:59:59.000Z

359

Multi-hazard Reliability Assessment of Offshore Wind Turbines  

E-Print Network [OSTI]

A probabilistic framework is developed to assess the structural reliability of offshore wind turbines. Probabilistic models are developed to predict the deformation, shear force and bending moment demands on the support structure of wind turbines...

Mardfekri Rastehkenari, Maryam 1981-

2012-12-04T23:59:59.000Z

360

Automatic Reconfiguration for Large-Scale Reliable Storage Systems  

E-Print Network [OSTI]

Byzantine-fault-tolerant replication enhances the availability and reliability of Internet services that store critical state and preserve it despite attacks or software errors. However, existing Byzantine-fault-tolerant ...

Rodrigues, Rodrigo

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Some optimization problems in power system reliability analysis  

E-Print Network [OSTI]

of the transformer is proposed where mathematical equations relating maintenance practice and equipment lifetime and cost are derived. The closed-form expressions insightfully explain how the transformer parameters relate to reliability. This mathematical model...

Jirutitijaroen, Panida

2009-05-15T23:59:59.000Z

362

SOFTWARE TESTING, VERIFICATION AND RELIABILITY Softw. Test. Verif. Reliab. (2014)  

E-Print Network [OSTI]

. An industrial case study using reactor protection system software shows that the automatically generated test defined by the International Electrotechnical Commission (IEC). Industrial FBD testing relies mostlySOFTWARE TESTING, VERIFICATION AND RELIABILITY Softw. Test. Verif. Reliab. (2014) Published online

363

Experiences with Two Reliability Data Collection Efforts (Presentation)  

SciTech Connect (OSTI)

This presentation, given by NREL at the Wind Reliability Experts Meeting in Albuquerque, New Mexico, outlines the causes of wind plant operational expenditures and gearbox failures and describes NREL's efforts to create a gearbox failure database.

Sheng, S.; Lantz, E.

2013-08-01T23:59:59.000Z

364

Office of Electricity Delivery and Energy Reliability, OE-20  

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

6, 2012 Office of Electricity Delivery and Energy Reliability, OE-20 U.S. Department of Energy 1000 Independence Avenue SW Washington, DC 20585 RE: Comments for Consideration in...

365

Lamont Jackson Office of Electricity Delivery and Energy Reliability  

Energy Savers [EERE]

March 28, 2012 Lamont Jackson Office of Electricity Delivery and Energy Reliability Mail Code: OE-20 U.S. Department of Energy 1000 Independence Avenue, S.W. Washington, D.C....

366

Lamont Jackson Office of Electricity Delivery and Energy Reliability  

Energy Savers [EERE]

March 28, 2012 Lamont Jackson Office of Electricity Delivery and Energy Reliability Mail Code: OE-20 U.S. Department of Energy 1000 Independence Avenue SW Washington, D.C. 20585...

367

Reliability assessment of autonomous power systems incorporating HVDC interconnection links  

SciTech Connect (OSTI)

The objective of this paper is to present an improved computational method for the overall reliability assessment of autonomous power systems that may or may not contain HVdc interconnection links. This is a hybrid method based on a Monte-Carlo simulation sequential approach which incorporates an analytical approach for the reliability modeling of the HVdc transmission links. The developed models and techniques have been implemented into a computer program that can be used to simulate the operational practices and characteristics of the overall system under study efficiently and realistically. A set of reliability indices are calculated for each load-point of interest and the entire system while a set of additional indices is calculated for quantifying the reliability performance of the interconnection links under the specified operating requirements. The analysis of a practical system is also included for a number of studies representing its various operating and design characteristics.

Dialynas, E.N.; Koskolos, N.C. [National Technical Univ., Athens (Greece). Dept. of Electrical and Computer Engineering] [National Technical Univ., Athens (Greece). Dept. of Electrical and Computer Engineering; Agoris, D. [Public Power Corp., Athens (Greece)] [Public Power Corp., Athens (Greece)

1996-01-01T23:59:59.000Z

368

Software reliability and safety in nuclear reactor protection systems  

SciTech Connect (OSTI)

Planning the development, use and regulation of computer systems in nuclear reactor protection systems in such a way as to enhance reliability and safety is a complex issue. This report is one of a series of reports from the Computer Safety and Reliability Group, Lawrence Livermore that investigates different aspects of computer software in reactor National Laboratory, that investigates different aspects of computer software in reactor protection systems. There are two central themes in the report, First, software considerations cannot be fully understood in isolation from computer hardware and application considerations. Second, the process of engineering reliability and safety into a computer system requires activities to be carried out throughout the software life cycle. The report discusses the many activities that can be carried out during the software life cycle to improve the safety and reliability of the resulting product. The viewpoint is primarily that of the assessor, or auditor.

Lawrence, J.D. [Lawrence Livermore National Lab., CA (United States)

1993-11-01T23:59:59.000Z

369

Enhanced Reliability of Photovoltaic Systems with Energy Storage and Controls  

SciTech Connect (OSTI)

This report summarizes efforts to reconfigure loads during outages to allow individual customers the opportunity to enhance the reliability of their electric service through the management of their loads, photovoltaics, and energy storage devices.

Manz, D.; Schelenz, O.; Chandra, R.; Bose, S.; de Rooij, M.; Bebic, J.

2008-02-01T23:59:59.000Z

370

Persistent Nodes for Reliable Memory in Geographically Local Networks  

E-Print Network [OSTI]

A Persistent Node is a redundant distributed mechanism for storing a key/value pair reliably in a geographically local network. In this paper, I develop a method of establishing Persistent Nodes in an amorphous matrix. I ...

Beal, Jacob

2003-04-15T23:59:59.000Z

371

Linkage design effect on the reliability of surface micromachined microengines driving a load  

SciTech Connect (OSTI)

The reliability of microengines is a function of the design of the mechanical linkage used to connect the electrostatic actuator to the drive. The authors have completed a series of reliability stress tests on surface micromachined microengines driving an inertial load. In these experiments, the authors used microengines that had pin mechanisms with guides connecting the drive arms to the electrostatic actuators. Comparing this data to previous results using flexure linkages revealed that the pin linkage design was less reliable. The devices were stressed to failure at eight frequencies, both above and below the measured resonance frequency of the microengine. Significant amounts of wear debris were observed both around the hub and pin joint of the drive gear. Additionally, wear tracks were observed in the area where the moving shuttle rubbed against the guides of the pin linkage. At each frequency, they analyzed the statistical data yielding a lifetime (t{sub 50}) for median cycles to failure and {sigma}, the shape parameter of the distribution. A model was developed to describe the failure data based on fundamental wear mechanisms and forces exhibited in mechanical resonant systems. The comparison to the model will be discussed.

Tanner, D.M.; Peterson, K.A.; Irwin, L.W.; Tangyunyong, P.; Miller, W.M.; Eaton, W.P.; Smith, N.F.; Rodgers, M.S.

1998-08-01T23:59:59.000Z

372

On-clip high frequency reliability and failure test structures  

DOE Patents [OSTI]

Self-stressing test structures for realistic high frequency reliability characterizations. An on-chip high frequency oscillator, controlled by DC signals from off-chip, provides a range of high frequency pulses to test structures. The test structures provide information with regard to a variety of reliability failure mechanisms, including hot-carriers, electromigration, and oxide breakdown. The system is normally integrated at the wafer level to predict the failure mechanisms of the production integrated circuits on the same wafer. 22 figs.

Snyder, E.S.; Campbell, D.V.

1997-04-29T23:59:59.000Z

373

Reliability Improvement Programs in Steam Distribution and Power Generation Systems  

E-Print Network [OSTI]

improvements in the reliability and efficiency of the system. Recent studies have shown that more than 40% of all in stalled steam traps and 20% of certain types of valves n~ed ' some form of corrective action. The majority of all high backpressure... problems in condensate return systems are due to poor design criteria in expanding or retrofitting existing return systems. By instituting a maintenance management program,a 95% reliability can be gained with two to four annual maintenance cyc...

Atlas, R. D.

374

On-clip high frequency reliability and failure test structures  

DOE Patents [OSTI]

Self-stressing test structures for realistic high frequency reliability characterizations. An on-chip high frequency oscillator, controlled by DC signals from off-chip, provides a range of high frequency pulses to test structures. The test structures provide information with regard to a variety of reliability failure mechanisms, including hot-carriers, electromigration, and oxide breakdown. The system is normally integrated at the wafer level to predict the failure mechanisms of the production integrated circuits on the same wafer.

Snyder, Eric S. (Albuquerque, NM); Campbell, David V. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

375

Reliability Improvement Programs in Steam Distribution and Power Generation Systems  

E-Print Network [OSTI]

RELIABILITY IIIPROVEfWlT PROGRAMS IN STEAM DISTRIBUTION AND POVER GENERATION SYSTEItS Steve Petto Tech/Serv Corporation Blue Bell, PA Abstract This paper will present alternatives to costly corrective maintenance of the steam trap... In the reliability and efficiency of the system. Recent studies have shownt hat more than 40% of all In stalled steam traps and 20% of certain types of valves need some form of corrective action. The majority of all high backpressure problems In condensate return...

Petto, S.

376

Wind Farm Diversification and Its Impact on Power System Reliability  

E-Print Network [OSTI]

WIND FARM DIVERSIFICATION AND ITS IMPACT ON POWER SYSTEM RELIABILITY A Thesis by YANNICK DEGEILH Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 2009 Major Subject: Electrical Engineering WIND FARM DIVERSIFICATION AND ITS IMPACT ON POWER SYSTEM RELIABILITY A Thesis by YANNICK DEGEILH Submitted to the Office of Graduate Studies of Texas A...

Degeilh, Yannick

2010-10-12T23:59:59.000Z

377

Web Cube: a Programming Model for Reliable Web Applications  

E-Print Network [OSTI]

Web Cube: a Programming Model for Reliable Web Applications I.S.W.B. Prasetya, T.E.J. Vos, S UU-CS-2005-002 www.cs.uu.nl #12;Web Cube: a Programming Model for Reliable Web Applications I@cs.uu.nl, tanja@iti.upv.es, doaitse@cs.uu.nl, bela@cs.ui.ac.id Abstract Web Cube is a server side programming

Utrecht, Universiteit

378

AREA 5 RWMS CLOSURE  

National Nuclear Security Administration (NNSA)

TRU material in the trench because there is no groundwater pathway under foreseeable climate conditions. The Area 5 RWMS probabilistic PA model can be modified and used to...

379

Groundwater Management Areas (Texas)  

Broader source: Energy.gov [DOE]

This legislation authorizes the Texas Commission on Environmental Quality and the Texas Water Development Board to establish Groundwater Management Areas to provide for the conservation,...

380

Final Report for the Virtual Reliability Realization System LDRD  

SciTech Connect (OSTI)

Current approaches to reliability are not adequate to keep pace with the need for faster, better and cheaper products and systems. This is especially true in high consequence of failure applications. The original proposal for the LDRD was to look at this challenge and see if there was a new paradigm that could make reliability predictions, along with a quantitative estimate of the risk in that prediction, in a way that was faster, better and cheaper. Such an approach would be based on the underlying science models that are the backbone of reliability predictions. The new paradigm would be implemented in two software tools: the Virtual Reliability Realization System (VRRS) and the Reliability Expert System (REX). The three-year LDRD was funded at a reduced level for the first year ($120K vs. $250K) and not renewed. Because of the reduced funding, we concentrated on the initial development of the expertise system. We developed an interactive semiconductor calculation tool needed for reliability analyses. We also were able to generate a basic functional system using Microsoft Siteserver Commerce Edition and Microsoft Sequel Server. The base system has the capability to store Office documents from multiple authors, and has the ability to track and charge for usage. The full outline of the knowledge model has been incorporated as well as examples of various types of content.

DELLIN, THEODORE A.; HENDERSON, CHRISTOPHER L.; O'TOOLE, EDWARD J.

2000-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

LEAM RELIABILITY PREDICTION ATM 978 I DATE 2-15-7 1  

E-Print Network [OSTI]

LEAM RELIABILITY PREDICTION ATM 978 I PAGE 1 OF DATE 2- 15-7 1 This ATM documents the Reliability. This preliminary ATM will be updated for CDR. Prepared by/ a~-·~W. Cooper LEAM Reliability Project Engineer o(" 1 8 #12;LEAM RELIABILITY PREDICTION ATM 978 J 2 P'AGE Of DATE 2-15-71 1. 0 INTRODUCTION This Reliability

Rathbun, Julie A.

382

ELECTRICAL SUBSTATION RELIABILITY EVALUATION WITH EMPHASIS ON EVOLVING INTERDEPENDENCE ON COMMUNICATION INFRASTRUCTURE.  

SciTech Connect (OSTI)

The objective of this study is to develop a methodology for a probabilistic assessment of the reliability and security of electrical energy distribution networks. This includes consideration of the future grid system, which will rely heavily on the existing digitally based communication infrastructure for monitoring and protection. Another important objective of this study is to provide information and insights from this research to Consolidated Edison Company (Con Edison) that could be useful in the design of the new network segment to be installed in the area of the World Trade Center in lower Manhattan. Our method is microscopic in nature and relies heavily on the specific design of the portion of the grid being analyzed. It extensively models the types of faults that a grid could potentially experience, the response of the grid, and the specific design of the protection schemes. We demonstrate that the existing technology can be extended and applied to the electrical grid and to the supporting communication network. A small subsection of a hypothetical grid based on the existing New York City electrical grid system of Con Edison is used to demonstrate the methods. Sensitivity studies show that in the current design the frequency for the loss of the main station is sensitive to the communication network reliability. The reliability of the communication network could become a more important contributor to the electrical grid reliability as the utilization of the communication network significantly increases in the near future to support ''smart'' transmission and/or distributed generation. The identification of potential failure modes and their likelihood can support decisions on potential modifications to the network including hardware, monitoring instrumentation, and protection systems.

AZARM,M.A.BARI,R.A.MUSICKI,Z.

2004-01-15T23:59:59.000Z

383

Sacramento Area Voltage Support Final Environmental Impact Statement  

SciTech Connect (OSTI)

The Western Area Power Administration's Central Valley Project transmission system forms an integral part of the interconnected Sacramento area transmission grid. Western is contractually responsible to oversee that the system is operated in accordance with strict reliability standards. Growth in the greater Sacramento, California area and power imported from generation outside the region, have increased the demand on the interconnected electric transmission system, leading to transmission system overloads and reducing the reliability and security of the area power system. Western has prepared this Sacramento Area Voltage Support (SVS) Draft Environmental Impact Statement (EIS) in compliance with Federal laws, regulations and guidelines, principally the National Environmental Policy Act (NEPA). This Draft EIS evaluates the potential environmental effects of physical improvements to the area's power system. Enhancements are needed to improve system reliability and provide voltage support for the Sacramento area. The results of public scoping meetings, workshops, meetings with agencies, and earlier studies by Western and area utilities helped to develop a range of alternatives for analysis. The Proposed Action involves: (1) Constructing a new double-circuit, 230-kV transmission line paralleling the existing double-circuit, 230-kV line from the O'Banion Substation to the Elverta Substation; (2) Realigning a portion of the existing Cottonwood-Roseville single-circuit, 230-kV transmission line north of Elverta Substation; and (3) Reconductoring the existing double-circuit, 230-kV transmission line from the Elverta Substation to the Tracy Substation. Public Hearings on the Draft EIS will be held between December 9-12, 2002. Comments on this Draft EIS are encouraged and should be sent to Ms. Loreen McMahon (above). Comments must be received by December 30, 2002.

N /A

2003-09-19T23:59:59.000Z

384

Sacramento Area Voltage Support Draft Environmental Impact Statement  

SciTech Connect (OSTI)

The Western Area Power Administration's Central Valley Project transmission system forms an integral part of the interconnected Sacramento area transmission grid. Western is contractually responsible to oversee that the system is operated in accordance with strict reliability standards. Growth in the greater Sacramento, California area and power imported from generation outside the region, have increased the demand on the interconnected electric transmission system, leading to transmission system overloads and reducing the reliability and security of the area power system. Western has prepared this Sacramento Area Voltage Support (SVS) Draft Environmental Impact Statement (EIS) in compliance with Federal laws, regulations and guidelines, principally the ''National Environmental Policy Act'' (NEPA). This Draft EIS evaluates the potential environmental effects of physical improvements to the area's power system. Enhancements are needed to improve system reliability and provide voltage support for the Sacramento area. The results of public scoping meetings, workshops, meetings with agencies, and earlier studies by Western and area utilities helped to develop a range of alternatives for analysis. The Proposed Action involves: Constructing a new double-circuit, 230-kV transmission line paralleling the existing double-circuit, 230-kV line from the O'Banion Substation to the Elverta Substation; Realigning a portion of the existing Cottonwood-Roseville single-circuit, 230-kV transmission line north of Elverta Substation; and Reconductoring the existing double-circuit, 230-kV transmission line from the Elverta Substation to the Tracy Substation. Public Hearings on the Draft EIS will be held between December 9-12, 2002. Comments on this Draft EIS are encouraged and should be sent to Ms. Loreen McMahon (above). Comments must be received by December 30, 2002.

N /A

2002-11-15T23:59:59.000Z

385

Fracture mechanics models developed for piping reliability assessment in light water reactors: piping reliability project  

SciTech Connect (OSTI)

The efforts concentrated on modifications of the stratified Monte Carlo code called PRAISE (Piping Reliability Analysis Including Seismic Events) to make it more widely applicable to probabilistic fracture mechanics analysis of nuclear reactor piping. Pipe failures are considered to occur as the result of crack-like defects introduced during fabrication, that escape detection during inspections. The code modifications allow the following factors in addition to those considered in earlier work to be treated: other materials, failure criteria and subcritical crack growth characteristic; welding residual and vibratory stresses; and longitudinal welds (the original version considered only circumferential welds). The fracture mechanics background for the code modifications is included, and details of the modifications themselves provided. Additionally, an updated version of the PRAISE user's manual is included. The revised code, known as PRAISE-B was then applied to a variety of piping problems, including various size lines subject to stress corrosion cracking and vibratory stresses. Analyses including residual stresses and longitudinal welds were also performed.

Harris, D.O.; Lim, E.Y.; Dedhia, D.D.; Woo, H.H.; Chou, C.K.

1982-06-01T23:59:59.000Z

386

Reliability of astrophysical jet simulations in 2D: On inter-code reliability and numerical convergence  

E-Print Network [OSTI]

In the present paper, we examine the convergence behavior and inter-code reliability of astrophysical jet simulations in axial symmetry. We consider both, pure hydrodynamic jets and jets with a dynamically significant magnetic field. The setups were chosen to match the setups of two other publications, and recomputed with the MHD code NIRVANA. We show that NIRVANA and the two other codes give comparable, but not identical results. We find that some global properties of a hydrodynamical jet simulation, like e.g. the bow shock velocity, converge at 100 points per beam radius (ppb) with NIRVANA. The situation is quite different after switching on the toroidal magnetic field: In this case, global properties converge even at 10 ppb. In both cases, details of the inner jet structure and especially the terminal shock region are still insufficiently resolved, even at our highest resolution of 70 ppb in the magnetized case and 400 ppb for the pure hydrodynamic jet. In the case of our highest resolution simulation, we can report two new features: First, small scale Kelvin-Helmholtz instabilities are excited at the contact discontinuity next to the jet head. This slows down the development of the long wavelength Kelvin-Helmholtz instability and its turbulent cascade to smaller wavelengths. Second, the jet head develops Rayleigh-Taylor instabilities which manage to entrain an increasing amount of mass from the ambient medium with resolution. This region extends in our highest resolution simulation over 2 jet radii in the axial direction.

M. Krause; M. Camenzind

2001-10-22T23:59:59.000Z

387

When Both Transmitting and Receiving Energies Matter: An Application of Network Coding in Wireless Body Area Networks  

E-Print Network [OSTI]

A network coding scheme for practical implementations of wireless body area networks is presented, with the objective of providing reliability under low-energy constraints. We propose a simple network layer protocol for ...

Shi, Xiaomeng

388

Reliability of ?at XOR-based erasure codes on heterogeneous devices  

E-Print Network [OSTI]

and M. Pecht. Enhanced reliability modeling of raid storageJ. Wylie. High-?delity reliability sim- ulation of erasure-and K. Rao. Notes on reliability models for non-MDS erasure

Greenan, Kevin M.; Miller, Ethan L; Wylie, Jay J.

2008-01-01T23:59:59.000Z

389

Software Reliability Theory Michael Rung-Tsong Lyu, The Chinese University of Hong Kong  

E-Print Network [OSTI]

Software Reliability Theory Michael Rung-Tsong Lyu, The Chinese University of Hong Kong; exponential order statistics; modelingm markov software reliability models; comparisons; emerging techniques Abstract Software reliability modeling has, surprisingly to many, been around since the early 1970s

Lyu, Michael R.

390

RELIABILITY CONSIDERATIONS OF ELECTRONICS COMPONENTS FOR THE DEEP UNDERWATER MUON AND NEUTRINO DETECTION SYSTEM  

E-Print Network [OSTI]

Hicrocircuit Device Reliability Hemory/LSI Data. AnalysisCenter Catalog No. HDR-3, Winter 1975-76. Reliability 15. J.Vaccaro, Semiconductor Reliability Within the U.S.

Leskovar, B.

2010-01-01T23:59:59.000Z

391

Estimation of the reliability of space nuclear power systems by probabilistic risk assessment techniques  

E-Print Network [OSTI]

spacecraft component reliability analysis and full-scale testing of SNPS is impractical. Therefore, a properly-designed reliability analysis, systematically applied, may provide an effective means for making judgments about the relative reliability...

Gutner, Sophie Isabelle

2012-06-07T23:59:59.000Z

392

Optimal inspection scheduling with alternative fatigue reliability formulations for steel bridges  

E-Print Network [OSTI]

Optimal inspection scheduling with alternative fatigue reliability formulations for steel bridges H, USA Keywords: steel bridges, structural reliability, fatigue, optimal inspection, fracture, plate girder, box girder ABSTRACT: A reliability-based method for inspection scheduling of steel bridges

Manuel, Lance

393

MEMS Reliability: Infrastructure, Test Structures, Experiments, and Failure Modes  

SciTech Connect (OSTI)

The burgeoning new technology of Micro-Electro-Mechanical Systems (MEMS) shows great promise in the weapons arena. We can now conceive of micro-gyros, micro-surety systems, and micro-navigators that are extremely small and inexpensive. Do we want to use this new technology in critical applications such as nuclear weapons? This question drove us to understand the reliability and failure mechanisms of silicon surface-micromachined MEMS. Development of a testing infrastructure was a crucial step to perform reliability experiments on MEMS devices and will be reported here. In addition, reliability test structures have been designed and characterized. Many experiments were performed to investigate failure modes and specifically those in different environments (humidity, temperature, shock, vibration, and storage). A predictive reliability model for wear of rubbing surfaces in microengines was developed. The root causes of failure for operating and non-operating MEMS are discussed. The major failure mechanism for operating MEMS was wear of the polysilicon rubbing surfaces. Reliability design rules for future MEMS devices are established.

TANNER,DANELLE M.; SMITH,NORMAN F.; IRWIN,LLOYD W.; EATON,WILLIAM P.; HELGESEN,KAREN SUE; CLEMENT,J. JOSEPH; MILLER,WILLIAM M.; MILLER,SAMUEL L.; DUGGER,MICHAEL T.; WALRAVEN,JEREMY A.; PETERSON,KENNETH A.

2000-01-01T23:59:59.000Z

394

E-Print Network 3.0 - adaptation reliability evaluation Sample...  

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

reliability evaluation Search Powered by Explorit Topic List Advanced Search Sample search results for: adaptation reliability evaluation Page: << < 1 2 3 4 5 > >> 1 Adaptive...

395

E-Print Network 3.0 - administration reliability centered Sample...  

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

reliability centered Search Powered by Explorit Topic List Advanced Search Sample search results for: administration reliability centered Page: << < 1 2 3 4 5 > >> 1 Mike Rubesch...

396

E-Print Network 3.0 - actions human reliability Sample Search...  

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

human reliability Search Powered by Explorit Topic List Advanced Search Sample search results for: actions human reliability Page: << < 1 2 3 4 5 > >> 1 Reformulating Human...

397

E-Print Network 3.0 - applying software reliability Sample Search...  

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

software reliability Search Powered by Explorit Topic List Advanced Search Sample search results for: applying software reliability Page: << < 1 2 3 4 5 > >> 1 A Phase-Based...

398

E-Print Network 3.0 - arthritis translation reliability Sample...  

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

translation reliability Search Powered by Explorit Topic List Advanced Search Sample search results for: arthritis translation reliability Page: << < 1 2 3 4 5 > >> 1 POSTER...

399

E-Print Network 3.0 - architecture reliability analysis Sample...  

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

reliability analysis Search Powered by Explorit Topic List Advanced Search Sample search results for: architecture reliability analysis Page: << < 1 2 3 4 5 > >> 1 Architecture...

400

E-Print Network 3.0 - accelerated reliability testing Sample...  

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

reliability testing Search Powered by Explorit Topic List Advanced Search Sample search results for: accelerated reliability testing Page: << < 1 2 3 4 5 > >> 1 ACCELERATOR...

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

E-Print Network 3.0 - accelerator reliability workshop Sample...  

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

reliability workshop Search Powered by Explorit Topic List Advanced Search Sample search results for: accelerator reliability workshop Page: << < 1 2 3 4 5 > >> 1 Spallation-Driven...

402

Estimated Value of Service Reliability for Electric Utility Customers in the United States  

E-Print Network [OSTI]

reliability of their transmission and distribution systemsdistribution against the incremental benefits of enhanced (or maintained) system reliabilitysystem reliability reinforcements; Assessing the economic benefits of distribution

Sullivan, M.J.

2009-01-01T23:59:59.000Z

403

A Methodology to Assess the Reliability of Hydrogen-based Transportation Energy Systems  

E-Print Network [OSTI]

2. Define reliability in hydrogen energy systems 3.metrics to value reliability in hydrogen energy systems 4.Specify hydrogen energy systems to evaluate 5. Develop

McCarthy, Ryan

2004-01-01T23:59:59.000Z

404

Perspectives on Real-Time Grid Operating Technologies to Manage Reliability in the Western Interconnection  

E-Print Network [OSTI]

Real-Time Grid Operating Technologies to Manage ReliabilityEto Environmental Energy Technologies Division October 2013Real-Time Grid Operating Technologies to Manage Reliability

Whitley, Eric

2014-01-01T23:59:59.000Z

405

Decontamination & decommissioning focus area  

SciTech Connect (OSTI)

In January 1994, the US Department of Energy Office of Environmental Management (DOE EM) formally introduced its new approach to managing DOE`s environmental research and technology development activities. The goal of the new approach is to conduct research and development in critical areas of interest to DOE, utilizing the best talent in the Department and in the national science community. To facilitate this solutions-oriented approach, the Office of Science and Technology (EM-50, formerly the Office of Technology Development) formed five Focus AReas to stimulate the required basic research, development, and demonstration efforts to seek new, innovative cleanup methods. In February 1995, EM-50 selected the DOE Morgantown Energy Technology Center (METC) to lead implementation of one of these Focus Areas: the Decontamination and Decommissioning (D & D) Focus Area.

NONE

1996-08-01T23:59:59.000Z

406

Geographic Area Month  

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

Fuels by PAD District and State (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month No. 1 Distillate No. 2 Distillate a No. 4 Fuel b Sales to End Users Sales for...

407

Use of Frequency Response Metrics to Assess the Planning and Operating Requirements for Reliable Integration of Variable Renewable Generation  

SciTech Connect (OSTI)

An interconnected electric power system is a complex system that must be operated within a safe frequency range in order to reliably maintain the instantaneous balance between generation and load. This is accomplished by ensuring that adequate resources are available to respond to expected and unexpected imbalances and restoring frequency to its scheduled value in order to ensure uninterrupted electric service to customers. Electrical systems must be flexible enough to reliably operate under a variety of"change" scenarios. System planners and operators must understand how other parts of the system change in response to the initial change, and need tools to manage such changes to ensure reliable operation within the scheduled frequency range. This report presents a systematic approach to identifying metrics that are useful for operating and planning a reliable system with increased amounts of variable renewable generation which builds on existing industry practices for frequency control after unexpected loss of a large amount of generation. The report introduces a set of metrics or tools for measuring the adequacy of frequency response within an interconnection. Based on the concept of the frequency nadir, these metrics take advantage of new information gathering and processing capabilities that system operators are developing for wide-area situational awareness. Primary frequency response is the leading metric that will be used by this report to assess the adequacy of primary frequency control reserves necessary to ensure reliable operation. It measures what is needed to arrest frequency decline (i.e., to establish frequency nadir) at a frequency higher than the highest set point for under-frequency load shedding within an interconnection. These metrics can be used to guide the reliable operation of an interconnection under changing circumstances.

Eto, Joseph H.; Undrill, John; Mackin, Peter; Daschmans, Ron; Williams, Ben; Haney, Brian; Hunt, Randall; Ellis, Jeff; Illian, Howard; Martinez, Carlos; O'Malley, Mark; Coughlin, Katie; LaCommare, Kristina Hamachi

2010-12-20T23:59:59.000Z

408

Research Opportunities in Reliability of Photovoltaic Modules (Presentation)  

SciTech Connect (OSTI)

The motivation for an increased scope and a more proactive effort in reliability research of photovoltaic modules and systems includes reducing the levelized cost of energy and gaining better confidence in the energy and financial payback for photovoltaic systems. This increased reliability and confidence will lead to greater penetration of photovoltaics in the energy portfolio and greater employment in photovoltaics and related industries. Present research needs include the fundamental degradation mechanisms of polymers, connectors and other module components, mapping of failure mechanisms observed in the field to those in accelerated lifetime tests, determining the acceleration factors, and improving standards for modules such that tests can appropriately be assigned to evaluate their long term durability. Specific mechanisms discussed are corrosion in module components, metastability in thin-film active layers, delamination and loss of elastic properties in module polymeric materials, and inverter failure. Presently, there is hiring of reliability scientists and engineers at many levels of the value chain for photovoltaics.

Hacke, P.

2010-05-01T23:59:59.000Z

409

DAKOTA reliability methods applied to RAVEN/RELAP-7.  

SciTech Connect (OSTI)

This report summarizes the result of a NEAMS project focused on the use of reliability methods within the RAVEN and RELAP-7 software framework for assessing failure probabilities as part of probabilistic risk assessment for nuclear power plants. RAVEN is a software tool under development at the Idaho National Laboratory that acts as the control logic driver and post-processing tool for the newly developed Thermal-Hydraulic code RELAP-7. Dakota is a software tool developed at Sandia National Laboratories containing optimization, sensitivity analysis, and uncertainty quantification algorithms. Reliability methods are algorithms which transform the uncertainty problem to an optimization problem to solve for the failure probability, given uncertainty on problem inputs and a failure threshold on an output response. The goal of this work is to demonstrate the use of reliability methods in Dakota with RAVEN/RELAP-7. These capabilities are demonstrated on a demonstration of a Station Blackout analysis of a simplified Pressurized Water Reactor (PWR).

Swiler, Laura Painton; Mandelli, Diego [Idaho National Laboratory, Idaho Falls, ID; Rabiti, Cristian [Idaho National Laboratory, Idaho Falls, ID; Alfonsi, Andrea [Idaho National Laboratory, Idaho Falls, ID

2013-09-01T23:59:59.000Z

410

300 Area Disturbance Report  

SciTech Connect (OSTI)

The objective of this study was to define areas of previous disturbance in the 300 Area of the U.S. Department of Energy (DOE) Hanford Site to eliminate these areas from the cultural resource review process, reduce cultural resource monitoring costs, and allow cultural resource specialists to focus on areas where subsurface disturbance is minimal or nonexistent. Research into available sources suggests that impacts from excavations have been significant wherever the following construction activities have occurred: building basements and pits, waste ponds, burial grounds, trenches, installation of subsurface pipelines, power poles, water hydrants, and well construction. Beyond the areas just mentioned, substrates in the' 300 Area consist of a complex, multidimen- sional mosaic composed of undisturbed stratigraphy, backfill, and disturbed sediments; Four Geographic Information System (GIS) maps were created to display known areas of disturbance in the 300 Area. These maps contain information gleaned from a variety of sources, but the primary sources include the Hanford GIS database system, engineer drawings, and historic maps. In addition to these maps, several assumptions can be made about areas of disturbance in the 300 Area as a result of this study: o o Buried pipelines are not always located where they are mapped. As a result, cultural resource monitors or specialists should not depend on maps depicting subsurface pipelines for accurate locations of previous disturbance. Temporary roads built in the early 1940s were placed on layers of sand and gravel 8 to 12 in. thick. Given this information, it is likely that substrates beneath these early roads are only minimally disturbed. Building foundations ranged from concrete slabs no more than 6 to 8 in. thick to deeply excavated pits and basements. Buildings constructed with slab foundations are more numerous than may be expected, and minimally disturbed substrates may be expected in these locations. Historic black and white photographs provide a partial record of some excavations, including trenches, building basements, and material lay-down yards. Estimates of excavation depth and width can be made, but these estimates are not accurate enough to pinpoint the exact location where the disturbedhmdisturbed interface is located (e.g., camera angles were such that depths and/or widths of excavations could not be accurately determined or estimated). In spite of these limitations, these photographs provide essential information. Aerial and historic low-level photographs have captured what appears to be backfill throughout much of the eastern portion of the 300 Area-near the Columbia River shoreline. This layer of fill has likely afforded some protection for the natural landscape buried beneath the fill. This assumption fits nicely with the intermittent and inadvertent discoveries of hearths and stone tools documented through the years in this part of the 300 Area. Conversely, leveling of sand dunes appears to be substantial in the northwestern portion of the 300 Area during the early stages of development. o Project files and engineer drawings do not contain information on any impromptu but necessary adjustments made on the ground during project implementation-after the design phase. Further, many projects are planned and mapped but never implemented-this information is also not often placed in project files. Specific recommendations for a 300 Area cultural resource monitoring strategy are contained in the final section of this document. In general, it is recommended that monitoring continue for all projects located within 400 m of the Columbia River. The 400-m zone is culturally sensitive and likely retains some of the most intact buried substrates in the 300 Area.

LL Hale; MK Wright; NA Cadoret

1999-01-07T23:59:59.000Z

411

Application of reliability analysis method to fusion component testing  

SciTech Connect (OSTI)

The term reliability here implies that a component satisfies a set of performance criteria while under specified conditions of use over a specified period of time. For fusion nuclear technology, the reliability goal to be pursued is the development of a mean time between failures (MTBF) for a component which is longer than its lifetime goal. While the component lifetime is mainly determined by the fluence limitation (i.e., damage level) which leads to performance degradation or failure, the MTBF represents an arithmetic average life of all units in a population. One method of assessing the reliability goal involves determining component availability needs to meet the goal plant availability, defining a test-analyze-fix development program to improve component reliability, and quantifying both test times and the number of test articles that would be required to ensure that a specified target MTBF is met. Statistically, constant failure rates and exponential life distributions are assumed for analyses and blanket component development is used as an example. However, as data are collected the probability distribution of the parameter of interest can be updated in a Bayesian fashion. The nuclear component testing program will be structured such that reliability requirements for DEMO can be achieved. The program shall not exclude the practice of a good design (such as reducing the complexity of the system to the minimum essential for the required operation), the execution of high quality manufacturing and inspection processes, and the implication of quality assurance and control for component development. In fact, the assurance of a high quality testing/development program is essential so that there is no question left for reliability.

Ying, A.Y.; Abdou, M.A. [Univ. of California, Los Angeles, CA (United States)

1994-12-31T23:59:59.000Z

412

Sprinkler: A reliable and energy efficient data dissemination service for extreme scale wireless networks of embedded devices  

E-Print Network [OSTI]

A RELIABLE AND ENERGY EFFICIENT DATA DISSEMINATION SERVICEA RELIABLE AND ENERGY EFFICIENT DATA DISSEMINATION SERVICEA Reliable and Energy Efficient Data Dissemination Service

Naik, Vinayak; Arora, Anish; Sinha, Prasun; Zhang, Hongwei

2007-01-01T23:59:59.000Z

413

Conditional Reliability Modeling of Short-term River Basin Management  

E-Print Network [OSTI]

CONDITIONAL RELIABILITY MODELING OF SHORT-TERM RIVER BASIN MANAGEMENT ASCE Texas Section Spring Meeting 2003 By: A.Andr?s Salazar, Ph.D. Freese and Nichols, Inc. and Ralph A. Wurbs, P.E., Ph.D. Texas A&M University 2 TEXAS WATER AVAILABITY MODEL...-88Year Storage (x 1000 ac-ft) Periods without shortage = 657 out of 672 (97.8%) What is the probability of satisfying demand when reservoir falls below 100,000 ac-ft? 9 CONDITIONAL RELIABILITY Statistical analysis of small sequences. Simulation 1...

Salazar, A.; Wurbs, R. A.

2003-01-01T23:59:59.000Z

414

DOE Human Reliability Program Removals Report 2004-2006  

SciTech Connect (OSTI)

This report presents results of the comprehensive data analysis and assessment of all U.S. Department of Energy (DOE) and National Nuclear Security Administration (NNSA) facilities that have positions requiring workers to be certified in the Human Reliability Program (HRP). Those facilities include: Albuquerque, Amarillo, DOE Headquarters, Hanford, Idaho, Nevada, Oak Ridge, Oakland, and Savannah River. The HRP was established to ensure, through continuous review and evaluation, the reliability of individuals who have access to the DOE’s most sensitive facilities, materials, and information.

Center for Human Reliability Studies

2007-02-01T23:59:59.000Z

415

Reliability analysis for LEB ring magnet power system in SSC  

SciTech Connect (OSTI)

The LEB ring magnet power system contains six subsystems, supervisory control, power supplies, regulation, DC bus, resonant cells, and fault sensing network. The system availability of the total LEB RMPS is required to be 0.999. The work in this paper is to allocate the overall LEB RMPS reliability requirement into reliability requirements for each of the subsystems and lower-tier items. The Feasibility-of-Objective technique combining with engineering experience is the key for the allocation. MIL-HDBK-217F is used to derate SCR components. 7 refs., 5 figs.

Smedley, K.

1991-11-01T23:59:59.000Z

416

Monitoring Software Reliability using Statistical Process control: An MMLE approach  

E-Print Network [OSTI]

This paper consider an MMLE (Modified Maximum Likelihood Estimation) based scheme to estimate software reliability using exponential distribution. The MMLE is one of the generalized frameworks of software reliability models of Non Homogeneous Poisson Processes (NHPPs). The MMLE gives analytical estimators rather than an iterative approximation to estimate the parameters. In this paper we proposed SPC (Statistical Process Control) Charts mechanism to determine the software quality using inter failure times data. The Control charts can be used to measure whether the software process is statistically under control or not.

Prasad, R Satya; Kantam, R R L

2011-01-01T23:59:59.000Z

417

Human Reliability Analysis for Digital Human-Machine Interfaces  

SciTech Connect (OSTI)

This paper addresses the fact that existing human reliability analysis (HRA) methods do not provide guidance on digital human-machine interfaces (HMIs). Digital HMIs are becoming ubiquitous in nuclear power operations, whether through control room modernization or new-build control rooms. Legacy analog technologies like instrumentation and control (I&C) systems are costly to support, and vendors no longer develop or support analog technology, which is considered technologically obsolete. Yet, despite the inevitability of digital HMI, no current HRA method provides guidance on how to treat human reliability considerations for digital technologies.

Ronald L. Boring

2014-06-01T23:59:59.000Z

418

Product acceptance environmental and destructive testing for reliability.  

SciTech Connect (OSTI)

To determine whether a component is meeting its reliability requirement during production, acceptance sampling is employed in which selected units coming off the production line are subjected to additional environmental and/or destructive tests that are within the normal environment space to which the component is expected to be exposed throughout its life in the Stockpile. This report describes what these tests are and how they are scored for reliability purposes. The roles of screens, Engineering Use Only tests, and next assembly product acceptance testing are also discussed, along with both the advantages and disadvantages of environmental and destructive testing.

Dvorack, Michael A.; Kerschen, Thomas J.; Collins, Elmer W.

2007-08-01T23:59:59.000Z

419

Technical information report: Plasma melter operation, reliability, and maintenance analysis  

SciTech Connect (OSTI)

This document provides a technical report of operability, reliability, and maintenance of a plasma melter for low-level waste vitrification, in support of the Hanford Tank Waste Remediation System (TWRS) Low-Level Waste (LLW) Vitrification Program. A process description is provided that minimizes maintenance and downtime and includes material and energy balances, equipment sizes and arrangement, startup/operation/maintence/shutdown cycle descriptions, and basis for scale-up to a 200 metric ton/day production facility. Operational requirements are provided including utilities, feeds, labor, and maintenance. Equipment reliability estimates and maintenance requirements are provided which includes a list of failure modes, responses, and consequences.

Hendrickson, D.W. [ed.

1995-03-14T23:59:59.000Z

420

Reliable and Adaptable Security Engineering for Database-Web Services  

E-Print Network [OSTI]

Reliable and Adaptable Security Engineering for Database-Web Services Martin Wimmer , Daniela,ehrnlech}@db.fmi.uni-passau.de Abstract. The situation in engineering security for Web services that access databases is as follows of sophisticated access control concepts for e-services. When engineering Web services that depend on databases

Kemper, Alfons

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

KEVIN KELLY, OLIVER SCHULTE, VINCENT HENDRICKS RELIABLE BELIEF REVISION  

E-Print Network [OSTI]

KEVIN KELLY, OLIVER SCHULTE, VINCENT HENDRICKS RELIABLE BELIEF REVISION ABSTRACT. Philosophical with the principles.2 1For general introductions, cf. (Osherson et al., 1986) and (Kelly, 1995). 2Hilary Putnam (Putnam, 1963) responded to Rudolf Carnap's theory of con rmation in just this way. 1 #12;2 KEVIN KELLY

Andrews, Peter B.

422

KEVIN KELLY , OLIVER SCHULTE , VINCENT HENDRICKS RELIABLE BELIEF REVISION  

E-Print Network [OSTI]

KEVIN KELLY , OLIVER SCHULTE , VINCENT HENDRICKS RELIABLE BELIEF REVISION ABSTRACT. Philosophical with the principles. 2 1 For general introductions, cf. (Osherson et al., 1986) and (Kelly, 1995). 2 Hilary Putnam (Putnam, 1963) responded to Rudolf Carnap's theory of confirmation in just this way. 1 #12; 2 KEVIN KELLY

Schulte, Oliver

423

Reliability Modeling and Evaluation in Aging Power Systems  

E-Print Network [OSTI]

Renewal process has been often employed as a mathematical model of the failure and repair cycle of components in power system reliability assessment. This implies that after repair, the component is assumed to be restored to be in as good as new...

Kim, Hag-Kwen

2010-01-14T23:59:59.000Z

424

RF-MEMS capacitive switches with high reliability  

DOE Patents [OSTI]

A reliable long life RF-MEMS capacitive switch is provided with a dielectric layer comprising a "fast discharge diamond dielectric layer" and enabling rapid switch recovery, dielectric layer charging and discharging that is efficient and effective to enable RF-MEMS switch operation to greater than or equal to 100 billion cycles.

Goldsmith, Charles L.; Auciello, Orlando H.; Carlisle, John A.; Sampath, Suresh; Sumant, Anirudha V.; Carpick, Robert W.; Hwang, James; Mancini, Derrick C.; Gudeman, Chris

2013-09-03T23:59:59.000Z

425

TEACHING DURABILITY IN AUTOMOTIVE APPLICATIONS USING A RELIABILITY  

E-Print Network [OSTI]

1 TEACHING DURABILITY IN AUTOMOTIVE APPLICATIONS USING A RELIABILITY APPROACH Anne Morel (1), André gained over five academic years of teaching fatigue the assessment of automotive components using, initially developed in the automotive industry and since extended to the aeronautical and mechanical

Paris-Sud XI, Université de

426

Reliability and Throughput in Future Automotive Communication Networks  

E-Print Network [OSTI]

Reliability and Throughput in Future Automotive Communication Networks John Liu, Timothy TaltyStar. This action created a new industry called automotive telematics, helping to save lives and providing, the automotive telematics industry has experienced a healthy growth in North America. During the current economic

Rajkumar, Ragunathan "Raj"

427

CSEM WP 129 Reliability and Competitive Electricity Markets*  

E-Print Network [OSTI]

and retail electricity markets. These mechanisms include: wholesale market price caps, capacity obligationsCSEM WP 129 Reliability and Competitive Electricity Markets* Paul Joskow and Jean Tirole April 2004 This paper is part of the Center for the Study of Energy Markets (CSEM) Working Paper Series. CSEM

California at Berkeley. University of

428

ATP: A Reliable Transport Protocol for Ad-hoc Networks  

E-Print Network [OSTI]

ATP: A Reliable Transport Protocol for Ad-hoc Networks Karthikeyan Sundaresan, Vaidyanathan protocol for ad-hoc net- works called ATP (ad-hoc transport protocol). We show through ns2 based simulations that ATP outperforms both default TCP and TCP-ELFN. Categories and Subject Descriptors C.2

Sivakumar, Raghupathy

429

ATP: A Reliable Transport Protocol for Ad-hoc Networks  

E-Print Network [OSTI]

ATP: A Reliable Transport Protocol for Ad-hoc Networks Karthikeyan Sundaresan Vaidyanathan-point of proposing a new transport protocol called ATP #12;Outline Problems with TCP ATP design elements ATP Protocol to the characteristics of the reverse path in wireline networks #12;ATP: Ad-hoc Transport Protocol TCP's components

Sivakumar, Raghupathy

430

Reliable and Energy-Efficient Routing Protocol in Dense  

E-Print Network [OSTI]

Reliable and Energy-Efficient Routing Protocol in Dense Wireless Sensor Networks Min Chen, Taekyoung Kwon, Shiwen Mao, + Yong Yuan, Victor C.M. Leung* Department of Electrical and Computer@snu.ac.kr Department of Electrical and Computer Engineering Auburn University, 200 Broun Hall, Auburn, AL 36849

Chen, Min

431

PRODUCTION PLANNING BASED ON RELIABILITY MODELS FOR PART REUSE  

E-Print Network [OSTI]

PRODUCTION PLANNING BASED ON RELIABILITY MODELS FOR PART REUSE Takeshi Murayama, Hiroshi Obata, Canada Abstract: This paper describes a production planning procedure addressing the issue that the timings and quantities of returned products and reusable components included in them is unknown

Shu, Lily H.

432

Continuously Optimized Reliable Energy (CORE) Microgrid: Models & Tools (Fact Sheet)  

SciTech Connect (OSTI)

This brochure describes Continuously Optimized Reliable Energy (CORE), a trademarked process NREL employs to produce conceptual microgrid designs. This systems-based process enables designs to be optimized for economic value, energy surety, and sustainability. Capabilities NREL offers in support of microgrid design are explained.

Not Available

2013-07-01T23:59:59.000Z

433

Reliability guarantees, demonstration, and control for weapon systems proposals  

E-Print Network [OSTI]

Analyses ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 6 '?warhead i:ffectivenese ~ ~ , . . . . . . . ~ . ? . . ? ? ~ 12 guarantees ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 15 Demonstration . . . ~ . . . . . . . ~ . . . . . . ~ ~ 17 fceliability Gontrol Program...FS %umber Title Page 1 Warhead Lethality . . . . . . . . . . . . . . . . 14 3'ffeotivensss Growth Curve . . . . . , . . . . . 16 TyPical Sequential SamPling Plan . . . . . . . . 19 Punctional Reliability Diagram ~ . . . . . , . . 22 Continuous...

Lanier, Ross Edwin

1959-01-01T23:59:59.000Z

434

Energy-aware scheduling under reliability and makespan constraints  

E-Print Network [OSTI]

Energy-aware scheduling under reliability and makespan constraints Guillaume Aupy, Anne Benoit and complementary. I. INTRODUCTION Energy-aware scheduling has proven an important issue in the past decade, both this interval at speed f. Energy-aware scheduling aims at minimizing the energy consumed during the execution

Paris-Sud XI, Université de

435

Energy-aware scheduling under reliability and makespan constraints  

E-Print Network [OSTI]

We consider a task graph to be executed on a set of homogeneous processors. We aim at minimizing the energy consumption while enforcing two constraints: a prescribed bound on the execution time or makespan), and a reliability threshold. Dynamic voltage and frequency scaling (DVFS) is a model frequently used to reduce the energy consumption of a schedule, but it has negative effect on its reliability. In this work, to improve the reliability of a schedule while reducing the energy consumption, we allow for the re-execution of some tasks. We assess the complexity of the tri-criteria scheduling problem (makespan, reliability, energy) with two different speed models: either processors can have arbitrary speeds (continuous speeds), or a processor can run at a finite number of different speeds, and it can change its speed during a computation. We propose several novel tri-criteria scheduling heuristics under the continuous speed model, and we evaluate them through a set of simulations. Our two best heuristics turn ...

Aupy, Guillaume; Robert, Yves

2011-01-01T23:59:59.000Z

436

Fourteenth Service Water System Reliability Improvement Seminar Proceedings  

SciTech Connect (OSTI)

This report contains information presented at the Fourteenth Service Water System Reliability Improvement (SWSRI) Seminar held June 24-25, 2002, in San Diego, California. The bi-annual seminar--sponsored by EPRI--provided an opportunity for participants to exchange technical information and experiences regarding the monitoring, repair, and replacement of service water system components.

None

2002-06-01T23:59:59.000Z

437

Reliability, Electric Power, and Public Versus Private Goods  

E-Print Network [OSTI]

Reliability, Electric Power, and Public Versus Private Goods: A New Look at the Role of Markets. Introduction The economic theory that has been used to support restructuring of the electric power industry has efficient market design. Electric power as used by customers is comprised of a bundle of valued services

438

Building Reliable Clients and Douglas Thain and Miron Livny  

E-Print Network [OSTI]

chapters have introduced the basic principles of service-oriented architecture and OGSA (279), explained contexts: remote execution, work organization, and data output. 19.1 PRINCIPLES OF RELIABLE SYSTEMS We first introduce some general design principles that apply to distributed systems and, in particular

Liblit, Ben

439

MULTIAREA SYSTEM RELIABILITY: THE ECONOMIC EVALUATION OF SYSTEM SECURITY CRITERIA  

E-Print Network [OSTI]

MULTIAREA SYSTEM RELIABILITY: THE ECONOMIC EVALUATION OF SYSTEM SECURITY CRITERIA BY TEOMAN GULER B assessment studies and the quantification of the economics of secure power system operations security and the economics of secure operations in the competitive market environment. The advent

Gross, George

440

Using Accelerated Life Tests Results to Predict Product Field Reliability  

E-Print Network [OSTI]

Using Accelerated Life Tests Results to Predict Product Field Reliability William Q. Meeker Dept State University Ames, IA 50011 June 22, 2008 Abstract Accelerated life tests (ALTs) provide timely, invariably, accelerated life tests (ALTs) to assess the effect of the change is accompanied by a question

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

Energy and Reliability in Future NOC Interconnected CMPS  

E-Print Network [OSTI]

In this dissertation, I explore energy and reliability in future NoC (Network-on-Chip) interconnected CMPs (chip multiprocessors) as they have become a first-order constraint in future CMP design. In the first part, we target the root cause...

Kim, Hyungjun

2013-08-01T23:59:59.000Z

442

Distributed Energy Resources, Power Quality and Reliability - Background  

SciTech Connect (OSTI)

Power quality [PQ] and power reliability [PR] gained importance in the industrialized world as the pace of installation of sensitive appliances and other electrical loads by utility customers accelerated, beginning in the mid 1980s. Utility-grid-connected customers rapidly discovered that this equipment was increasingly sensitive to various abnormalities in the electricity supply.

Schienbein, Lawrence A.; DeSteese, John G.

2002-01-31T23:59:59.000Z

443

Separating myths from reality in PV inverter reliability  

E-Print Network [OSTI]

to improving the lifetime and reliability of Enecsys solar micro inverters." · Enphase white paper: "[our technology and not the other? Why can't even microinverter companies agree on this? #12;Switch mode power" stage steers the sine wave to positive & negative lobes #12;The need for storage · With any switchmode

Rollins, Andrew M.

444

Toward Reliable and Efficient Reporting in Wireless Sensor Networks  

E-Print Network [OSTI]

Bouabdallah, and Raouf Boutaba, Senior Member, IEEE Abstract--Energy efficiency is one of the major concerns and as the first main contribution, we derive the optimal number of reporting nodes Nopt energy that minimizes the energy consumed to report reliably the occurrence of an event. In other words, we prove that limiting

Boutaba, Raouf

445

Automated Energy Distribution and Reliability System (AEDR): Final Report  

SciTech Connect (OSTI)

This report describes Northern Indiana Public Service Co. project efforts to develop an automated energy distribution and reliability system. The purpose of this project was to implement a database-driven GIS solution that would manage all of the company's gas, electric, and landbase objects.

Buche, D. L.

2008-07-01T23:59:59.000Z

446

Hidden Challenges to MEMS Commercialization: Design Realization and Reliability Assurance  

SciTech Connect (OSTI)

The successful commercialization of MicroElectroMechanical Systems (MEMS) is an essential prerequisite for their implementation in many critical government applications. Several unique challenges must be overcome to achieve this widespread commercialization. Challenges associated with design realization and reliability assurance are discussed, along with approaches taken by Sandia to successfully overcome these challenges.

McWhorter, P.J.; Miller, S.L.; Miller, W.M.; Rodger, M.S.; Yarberry, V.R.

1999-01-20T23:59:59.000Z

447

Thermal Reliability Study of Bypass Diodes in Photovoltaic Modules (Poster)  

SciTech Connect (OSTI)

This paper presents the result of high-temperature durability and thermal cycling testing and analysis for the selected diodes to study the detail of the thermal design and relative long-term reliability of the bypass diodes used to limit the detrimental effects of module hot-spot susceptibility.

Zhang, Z.; Wohlgemuth, J.; Kurtz, S.

2013-05-01T23:59:59.000Z

448

An Examination of Temporal Trends in Electricity Reliability Based on  

E-Print Network [OSTI]

, Annika Todd, and Emily Fisher Ernest Orlando Lawrence Berkeley National Laboratory 1 Cyclotron Road, MS thereof, or The Regents of the University of California. Ernest Orlando Lawrence Berkeley National Reliability of the U.S. Department of Energy under Contract No. DE-AC02- 05CH11231. ERNEST ORLANDO LAWRENCE

449

SCORE: a Scalable Concolic Testing Tool for Reliable Embedded Software  

E-Print Network [OSTI]

in an automated fashion. One main task of concolic testing is to extract symbolic in- formation from a concrete cases in an automated manner. An alternative approach, concolic (CONCrete + symbOLIC) [17] testing (alsoSCORE: a Scalable Concolic Testing Tool for Reliable Embedded Software Yunho Kim and Moonzoo Kim

450

On the Reliability of the Autosub Autonomous Underwater Vehicle  

E-Print Network [OSTI]

entered the design process The design philosophy for Autosub was based firmly on risk reduction. Indeed with reliability in mind and how operational practice complements that design philosophy. Section 3 identifies, the first phase of the project in 1989 comprised 26 work packages that assessed the feasibility and risks

Griffiths, Gwyn

451

Identifying Transformer Incipient Events for Maintaining Distribution System Reliability  

E-Print Network [OSTI]

Identifying Transformer Incipient Events for Maintaining Distribution System Reliability Karen L events in single-phase distribution transformers. This analysis will aid in the development of an automatic detection method for internal incipient faults in the transformers. The detection method can

452

Transformer Thermal Modeling: Improving Reliability Using Data Quality Control  

E-Print Network [OSTI]

1 Transformer Thermal Modeling: Improving Reliability Using Data Quality Control Daniel J. Tylavsky--Eventually all large transformers will be dynamically loaded using models updated regularly from field measured data. Models obtained from measured data give more accurate results than models based on transformer

453

RELIABILITY OF SAMPLING INSPECTION SCHEMES APPLIED TO REPLACEMENT STEAM GENERATORS  

E-Print Network [OSTI]

RELIABILITY OF SAMPLING INSPECTION SCHEMES APPLIED TO REPLACEMENT STEAM GENERATORS Guy Roussel the size of the random sample of tubes to be inspected in replacement steam generators is revisited in this paper. A procedure to estimate the maximum number of defective tubes left in the steam generator after

Cizelj, Leon

454

OLED area illumination source  

DOE Patents [OSTI]

The present invention relates to an area illumination light source comprising a plurality of individual OLED panels. The individual OLED panels are configured in a physically modular fashion. Each OLED panel comprising a plurality of OLED devices. Each OLED panel comprises a first electrode and a second electrode such that the power being supplied to each individual OLED panel may be varied independently. A power supply unit capable of delivering varying levels of voltage simultaneously to the first and second electrodes of each of the individual OLED panels is also provided. The area illumination light source also comprises a mount within which the OLED panels are arrayed.

Foust, Donald Franklin (Scotia, NY); Duggal, Anil Raj (Niskayuna, NY); Shiang, Joseph John (Niskayuna, NY); Nealon, William Francis (Gloversville, NY); Bortscheller, Jacob Charles (Clifton Park, NY)

2008-03-25T23:59:59.000Z

455

Reliability Maps for Probabilistic Guarantees of Task Motion for Robotic Manipulators  

E-Print Network [OSTI]

Full paper Reliability Maps for Probabilistic Guarantees of Task Motion for Robotic Manipulators March 2012 Abstract 10There are many applications for which reliable and safe robots are desired and reliable to prevent human injury and task failure. However, different levels of safety and reliability

Maciejewski, Anthony A.

456

RELIABILITY ANALYSIS IN A FAULT TOLERANT CONTROL STRATEGY DEDICATED TO ACTIVE POWER FILTER  

E-Print Network [OSTI]

RELIABILITY ANALYSIS IN A FAULT TOLERANT CONTROL STRATEGY DEDICATED TO ACTIVE POWER FILTER P. WEBER on reliability analysis dedicated to an active power filter. Once a fault has been detected and isolated, all reliability indicate the optimal structure. Keywords: Fault Tolerant Control, System Reliability, Active power

Paris-Sud XI, Université de

457

BUILD RELIABILITY INTO EVERY PROJECT Researchers in the engineering industry and  

E-Print Network [OSTI]

1180 FL BUILD RELIABILITY INTO EVERY PROJECT Researchers in the engineering industry and academia are making important advances on reliability-based design and modeling of uncer- tainty when data is limited, Engineering Design Reliability Handbook is a valuable addition to the reliability literature. It presents

Kreinovich, Vladik

458

Reliability Support in Virtual Infrastructures Guilherme Koslovski, Wai-Leong Yeow, Cedric Westphal, Tram Truong Huu,  

E-Print Network [OSTI]

Reliability Support in Virtual Infrastructures Guilherme Koslovski, Wai-Leong Yeow, Cedric Westphal virtualization is the capability of transparent reliability provisioning (reliability becomes a service provided by the infrastructure). In this context, we discuss the motivations and gains of introducing customizable reliability

Paris-Sud XI, Université de

459

Models for Battery Reliability and Lifetime: Applications in Design and Health Management (Presentation)  

SciTech Connect (OSTI)

This presentation discusses models for battery reliability and lifetime and the Battery Ownership Model.

Smith, K.; Neubauer, J.; Wood, E.; Jun, M.; Pesaran, A.

2013-06-01T23:59:59.000Z

460

Thermal Performance and Reliability of Bonded Interfaces for Power Electronics Packaging Applications (Presentation)  

SciTech Connect (OSTI)

This presentation discusses the thermal performance and reliability of bonded interfaces for power electronics packaging applications.

Devoto, D.

2013-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "area reliability coordinaiton" 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

MEASUREMENT OF BUILDING AREAS MEASUREMENT OF BUILDING AREAS  

E-Print Network [OSTI]

) Common Use Areas All floored areas in the building for circulation and standard facilities provided and the like. These are extracts of NWPC standard method of measurement of building areas with an addition fromSection S ANNEXURE 4 MEASUREMENT OF BUILDING AREAS MEASUREMENT OF BUILDING AREAS 1. GROSS BUILDING

Wang, Yan

462

Subsurface contaminants focus area  

SciTech Connect (OSTI)

The US Department of Enregy (DOE) Subsurface Contaminants Focus Area is developing technologies to address environmental problems associated with hazardous and radioactive contaminants in soil and groundwater that exist throughout the DOE complex, including radionuclides, heavy metals; and dense non-aqueous phase liquids (DNAPLs). More than 5,700 known DOE groundwater plumes have contaminated over 600 billion gallons of water and 200 million cubic meters of soil. Migration of these plumes threatens local and regional water sources, and in some cases has already adversely impacted off-site rsources. In addition, the Subsurface Contaminants Focus Area is responsible for supplying technologies for the remediation of numerous landfills at DOE facilities. These landfills are estimated to contain over 3 million cubic meters of radioactive and hazardous buried Technology developed within this specialty area will provide efective methods to contain contaminant plumes and new or alternative technologies for development of in situ technologies to minimize waste disposal costs and potential worker exposure by treating plumes in place. While addressing contaminant plumes emanating from DOE landfills, the Subsurface Contaminants Focus Area is also working to develop new or alternative technologies for the in situ stabilization, and nonintrusive characterization of these disposal sites.

NONE

1996-08-01T23:59:59.000Z

463

MSL ENTERANCE REFERENCE AREA  

E-Print Network [OSTI]

MSL ENTERANCE LOBBY ELEV STAIRS SSL-019 REFERENCE AREA SSL-021 GROUP STUDY SSL-018 STUDY ROOM SSL-029 SSL-020 COPY ROOM SSL-022 GROUP STUDY SSL-026 STACKS SSL-023 GROUP STUDY SSL-024 GROUP STUDY SSL TBL-014 TBL-014A STAIRS SSL-007 GIS/ WORKROOM SSL-011 SSL-008 SSL-009 SSL-010 SSL-014 SSL-017 STAIRS

Aalberts, Daniel P.

464

Plutonium focus area  

SciTech Connect (OSTI)

To ensure research and development programs focus on the most pressing environmental restoration and waste management problems at the U.S. Department of Energy (DOE), the Assistant Secretary for the Office of Environmental Management (EM) established a working group in August 1993 to implement a new approach to research and technology development. As part of this new approach, EM developed a management structure and principles that led to the creation of specific Focus Areas. These organizations were designed to focus the scientific and technical talent throughout DOE and the national scientific community on the major environmental restoration and waste management problems facing DOE. The Focus Area approach provides the framework for intersite cooperation and leveraging of resources on common problems. After the original establishment of five major Focus Areas within the Office of Technology Development (EM-50, now called the Office of Science and Technology), the Nuclear Materials Stabilization Task Group (EM-66) followed the structure already in place in EM-50 and chartered the Plutonium Focus Area (PFA). The following information outlines the scope and mission of the EM, EM-60, and EM-66 organizations as related to the PFA organizational structure.

NONE

1996-08-01T23:59:59.000Z

465

Ashland Area Support Substation Project : Environmental Assessment.  

SciTech Connect (OSTI)

The Bonneville Power Administration (BPA) provides wholesale electric service to the City of Ashland (the City) by transferring power over Pacific Power & Light Company`s (PP&L) 115-kilovolt (kV) transmission lines and through PP&L`s Ashland and Oak Knoll Substations. The City distributes power over a 12.5-kV system which is heavily loaded during winter peak periods and which has reached the limit of its ability to serve peak loads in a reliable manner. Peak loads under normal winter conditions have exceeded the ratings of the transformers at both the Ashland and Oak Knoll Substations. In 1989, the City modified its distribution system at the request of PP&L to allow transfer of three megawatts (MW`s) of electric power from the overloaded Ashland Substation to the Oak Knoll Substation. In cooperation with PP&L, BPA installed a temporary 6-8 megavolt-amp (MVA) 115-12.5-kV transformer for this purpose. This additional transformer, however, is only a temporary remedy. BPA needs to provide additional, reliable long-term service to the Ashland area through additional transformation in order to keep similar power failures from occurring during upcoming winters in the Ashland area. The temporary installation of another 20-MVA mobile transformer at the Ashland Substation and additional load curtailment are currently being studied to provide for sustained electrical service by the peak winter period 1992. Two overall electrical plans-of-service are described and evaluated in this report. One of them is proposed for action. Within that proposed plan-of-service are location options for the substation. Note that descriptions of actions that may be taken by the City of Ashland are based on information provided by them.

United States. Bonneville Power Administration.

1992-06-01T23:59:59.000Z

466

Probabilistic flows for reliability evaluation of multiarea power  

E-Print Network [OSTI]

. An area refers to a utility company, a geographic region within a utility, or a jointly owned generation areas accord- ing to the order specified by a priority list. The isolation policy: this is considered

Gross, George

467

DOE Designates Southwest Area and Mid-Atlantic Area National...  

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

Interest Electric Transmission Corridors DOE Designates Southwest Area and Mid-Atlantic Area National Interest Electric Transmission Corridors October 2, 2007 - 11:12am Addthis...

468

Dynamic Human Reliability Analysis: Benefits and Challenges of Simulating Human Performance  

SciTech Connect (OSTI)

To date, there has been considerable work on dynamic event trees and other areas related to dynamic probabilistic safety assessment (PSA). The counterpart to these efforts in human reliability analysis (HRA) has centered on the development of specific methods to account for the dynamic nature of human performance. In this paper, the author posits that the key to dynamic HRA is not in the development of specific methods but in the utilization of cognitive modeling and simulation to produce a framework of data that may be used in quantifying the likelihood of human error. This paper provides an overview of simulation approaches to HRA; reviews differences between first, second, and dynamic generation HRA; and outlines potential benefits and challenges of this approach.

R. L. Boring

2007-06-01T23:59:59.000Z

469

HUMAN RELIABILITY ANALYSIS FOR COMPUTERIZED PROCEDURES, PART TWO: APPLICABILITY OF CURRENT METHODS  

SciTech Connect (OSTI)

Computerized procedures (CPs) are an emerging technology within nuclear power plant control rooms. While CPs have been implemented internationally in advanced control rooms, to date no U.S. nuclear power plant has implemented CPs in its main control room. Yet, CPs are a reality of new plant builds and are an area of considerable interest to existing plants, which see advantages in terms of easier records management by omitting the need for updating hardcopy procedures. The overall intent of this paper is to provide a characterization of human reliability analysis (HRA) issues for computerized procedures. It is beyond the scope of this document to propose a new HRA approach or to recommend specific methods or refinements to those methods. Rather, this paper serves as a review of current HRA as it may be used for the analysis and review of computerized procedures.

Ronald L. Boring; David I. Gertman

2012-10-01T23:59:59.000Z

470

CONSIDERATIONS FOR THE TREATMENT OF COMPUTERIZED PROCEDURES IN HUMAN RELIABILITY ANALYSIS  

SciTech Connect (OSTI)

Computerized procedures (CPs) are an emerging technology within nuclear power plant control rooms. While CPs have been implemented internationally in advanced control rooms, to date no US nuclear power plant has implemented CPs in its main control room. Yet, CPs are a reality of new plant builds and are an area of considerable interest to existing plants, which see advantages in terms of easier records management by omitting the need for updating hardcopy procedures. The overall intent of this paper is to provide a characterization of human reliability analysis (HRA) issues for computerized procedures. It is beyond the scope of this document to propose a new HRA approach or to recommend specific methods or refinements to those methods. Rather, this paper serves as a review of current HRA as it may be used for the analysis and review of computerized procedures.

Ronald L. Boring; David I. Gertman

2012-07-01T23:59:59.000Z

471

,"Table 2. Noncoincident Peak Load, by North American Electric Reliability Corporation Assessment Area,"  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National and Regional Data; Row: NAICS Codes; Column: EnergyShale ProvedTexas"Brunei (Dollars per ThousandPrice Sold to ElectricSulfurJaunary.

472

Reliability and Maintainability Issues for the Next Linear Collider  

SciTech Connect (OSTI)

Large accelerators for high energy physics research traditionally have been designed using informal best design, engineering, and management practices to achieve acceptable levels of operational availability. However, the Next Linear Collider(NLC) project presents a particular challenge for operational availability due to the unprecedented size and complexity of the accelerator systems required to achieve the physics goals of high center-of-mass energy and high luminosity. Formal reliability and maintainability analysis, design, and implementation will be required to achieve acceptable operational availability for the high energy physics research program. This paper introduces some of the basic concepts of reliability analysis and applies them to the 2.6-cm microwave power system of the two 10-km-long, 250-GeV linacs that are currently proposed for the NLC design.

Wilson, Zane J.; Gold, Saul L.; Koontz, Ron F.; Lavine, Ted L.; /SLAC

2011-08-26T23:59:59.000Z

473

Statistical Modeling of Photovoltaic Reliability Using Accelerated Degradation Techniques (Poster)  

SciTech Connect (OSTI)

We introduce a cutting-edge life-testing technique, accelerated degradation testing (ADT), for PV reliability testing. The ADT technique is a cost-effective and flexible reliability testing method with multiple (MADT) and Step-Stress (SSADT) variants. In an environment with limited resources, including equipment (chambers), test units, and testing time, these techniques can provide statistically rigorous prediction of lifetime and other interesting parameters, such as failure rate, warranty time, mean time to failure, degradation rate, activation energy, acceleration factor, and upper limit level of stress. J-V characterization can be used for degradation data and the generalized Eyring model can be used for the thermal-humidity stress condition. The SSADT model can be constructed based on the cumulative damage model (CEM), which assumes that the remaining test united are failed according to cumulative density function of current stress level regardless of the history on previous stress levels.

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

2011-02-01T23:59:59.000Z

474

Reliability modeling and evaluation of HVDC power transmission systems  

SciTech Connect (OSTI)

The objective of this paper is to present an improved computational method for evaluating the reliability indices of HVdc transmission systems. The developed models and computational techniques are described. These can be used to simulate the operational practices and characteristics of a system under study efficiently and realistically. This method is based on the failure modes and effects analysis and uses the event tree method and the minimal cut set approach to represent the system's operational behavior and deduce the appropriate system's failure modes. A set of five reliability indices is evaluated for each output node being analyzed together with the probability and frequency of encountering particular regions of system performance levels. The analysis of an assumed HVdc bipolar transmission system is also included.

Dialynas, E.N.; Koskolos, N.C. (National Technical Univ., Athens (Greece). Dept. of Electrical and Computer Engineering)

1994-04-01T23:59:59.000Z

475

Reliability estimates for selected sensors in fusion applications  

SciTech Connect (OSTI)

This report presents the results of a study to define several types of sensors in use, the qualitative reliability (failure modes) and quantitative reliability (average failure rates) for these types of process sensors. Temperature, pressure, flow, and level sensors are discussed for water coolant and for cryogenic coolants. The failure rates that have been found are useful for risk assessment and safety analysis. Repair times and calibration intervals are also given when found in the literature. All of these values can also be useful to plant operators and maintenance personnel. Designers may be able to make use of these data when planning systems. The final chapter in this report discusses failure rates for several types of personnel safety sensors, including ionizing radiation monitors, toxic and combustible gas detectors, humidity sensors, and magnetic field sensors. These data could be useful to industrial hygienists and other safety professionals when designing or auditing for personnel safety.

Cadwallader, L.C.

1996-09-01T23:59:59.000Z

476

Qualitative Reliability Issues for Solid and Liquid Wall Fusion Designs  

SciTech Connect (OSTI)

This report is an initial effort to identify issues affecting reliability and availability of solid and liquid wall designs for magnetic fusion power plant designs. A qualitative approach has been used to identify the possible failure modes of major system components and their effects on the systems. A general set of design attributes known to affect the service reliability has been examined for the overview solid and liquid wall designs, and some specific features of good first wall design have been discussed and applied to these designs as well. The two generalized designs compare well in regard to these design attributes. The strengths and weaknesses of each design approach are seen in the comparison of specific features.

Cadwallader, L.C.

2001-01-31T23:59:59.000Z

477

Qualitative Reliability Issues for Solid and Liquid Wall Fusion Design  

SciTech Connect (OSTI)

This report is an initial effort to identify issues affecting reliability and availability of solid and liquid wall designs for magnetic fusion power plant designs. A qualitative approach has been used to identify the possible failure modes of major system components and their effects on the systems. A general set of design attributes known to affect the service reliability has been examined for the overview solid and liquid wall designs, and some specific features of good first wall design have been discussed and applied to these designs as well. The two generalized designs compare well in regard to these design attributes. The strengths and weaknesses of each design approach are seen in the comparison of specific features.

Cadwallader, Lee Charles

2001-01-01T23:59:59.000Z

478

Gearbox Reliability Collaborative High-Speed Shaft Calibration  

SciTech Connect (OSTI)

Instrumentation has been added to the high-speed shaft, pinion, and tapered roller bearing pair of the Gearbox Reliability Collaborative gearbox to measure loads and temperatures. The new shaft bending moment and torque instrumentation was calibrated and the purpose of this document is to describe this calibration process and results, such that the raw shaft bending and torque signals can be converted to the proper engineering units and coordinate system reference for comparison to design loads and simulation model predictions.

Keller, J.; McNiff, B.

2014-09-01T23:59:59.000Z

479

Reliable renewable energy for a new electric infrastructure.  

SciTech Connect (OSTI)

This is workshop is about methodologies, tools, techniques, models, training, codes and standards, etc., that can improve reliability of systems while reducing costs. We've intentionally scaled back on presentation time to allow more time for interaction. Sandia's PV Program Vision - Recognition as a world-class facility to develop and integrate new photovoltaic components, systems, and architectures for the future of our electric/energy delivery systems.

Hanley, Charles J.

2010-05-01T23:59:59.000Z

480

Final report : testing and evaluation for solar hot water reliability.  

SciTech Connect (OSTI)

Solar hot water (SHW) systems are being installed by the thousands. Tax credits and utility rebate programs are spurring this burgeoning market. However, the reliability of these systems is virtually unknown. Recent work by Sandia National Laboratories (SNL) has shown that few data exist to quantify the mean time to failure of these systems. However, there is keen interest in developing new techniques to measure SHW reliability, particularly among utilities that use ratepayer money to pay the rebates. This document reports on an effort to develop and test new, simplified techniques to directly measure the state of health of fielded SHW systems. One approach was developed by the National Renewable Energy Laboratory (NREL) and is based on the idea that the performance of the solar storage tank can reliably indicate the operational status of the SHW systems. Another approach, developed by the University of New Mexico (UNM), uses adaptive resonance theory, a type of neural network, to detect and predict failures. This method uses the same sensors that are normally used to control the SHW system. The NREL method uses two additional temperature sensors on the solar tank. The theories, development, application, and testing of both methods are described in the report. Testing was performed on the SHW Reliability Testbed at UNM, a highly instrumented SHW system developed jointly by SNL and UNM. The two methods were tested against a number of simulated failures. The results show that both methods show promise for inclusion in conventional SHW controllers, giving them advanced capability in detecting and predicting component failures.

Caudell, Thomas P. (University of New Mexico, Albuquerque, NM) [University of New Mexico, Albuquerque, NM; He, Hongbo (University of New Mexico, Albuquerque, NM) [University of New Mexico, Albuquerque, NM; Menicucci, David F. (Building Specialists, Inc., Albuquerque, NM) [Building Specialists, Inc., Albuquerque, NM; Mammoli, Andrea A. (University of New Mexico, Albuquerque, NM) [University of New Mexico, Albuquerque, NM; Burch, Jay (National Renewable Energy Laboratory, Golden CO) [National Renewable Energy Laboratory, Golden CO

2011-07-01T23:59:59.000Z

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


481

Reliable Gas Turbine Output: Attaining Temperature Independent Performance  

E-Print Network [OSTI]

RELIABLE GAS TURBINE OUTPUT; ATTAINING TEMPERATURE INDEPENDENT PERFORMANCE James E. Neeley, P.E. Power Plant Engineer Public Utility Commission of Texas Austin, Texas ABSTRACT Improvements in gas turbine efficiency, coupled... with dropping gas prices, has made gas turbines a popular choice of utilities to supply peaking as well as base load power in the form of combined cycle power plants. Today, because of the gas turbine's compactness, low maintenance, and high levels...

Neeley, J. E.; Patton, S.; Holder, F.

482

Reliability, Availability and Maintainability Considerations for Gas Turbine Cogeneration Systems  

E-Print Network [OSTI]

RELIABILITY, AVAILABILITY AND MAINTAINABILITY CONSIDERATIONS FOR GAS TURBINE COGENERATION SYSTEMS Gyrus B. Meher-Homji and Alfred B. Focke Boyce Engineering International, Inc. Houston, Texas ABSTRACT The success of a cogeneration system... the choice of the number of gas turbines and waste heat recovery units to be utilized down to small components, such as pumps, dampers, hea t exchangers and auxiliary systems. . Rand M studies must be initiated in the conceptual phases of the project...

Meher-Homji, C. B.; Focke, A. B.

1984-01-01T23:59:59.000Z

483

ADVANCED COMPRESSOR ENGINE CONTROLS TO ENHANCE OPERATION, RELIABILITY AND INTEGRITY  

SciTech Connect (OSTI)

This document is the final report for the ''Advanced Compressor Engine Controls to Enhance Operation, Reliability, and Integrity'' project. SwRI conducted this project for DOE in conjunction with Cooper Compression, under DOE contract number DE-FC26-03NT41859. This report addresses an investigation of engine controls for integral compressor engines and the development of control strategies that implement closed-loop NOX emissions feedback.

Gary D. Bourn; Jess W. Gingrich; Jack A. Smith

2004-03-01T23:59:59.000Z

484

Energy and Reliability Considerations For Adjustable Speed Driven Pumps  

E-Print Network [OSTI]

ENERGY AND RELIABILITY CONSIDERATIONS FOR ADJUSTABLE SPEED DRIVEN PUMPS Don Casada Senior Development Associate ABSTRACT Centrifugal devices such as pumps, fans, and compressors follow a general set of speed affinity laws: Q2 = QI *( N z... there is no static head, the system head, like the pump head, is proportional to the velocity, or flow rate, squared. As a result. the pump affinity laws also indicate how the pump and system will work together to define the operating point in such a system...

Casada, D.

485

2013 Reliability & Markets Peer Review | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustionImprovement3 Beryllium-Associated Worker Registry Summary 2013Evaluation3 NCSAM2013 Reliability

486

Natural streamflow cycles and effects on water supply reliability  

E-Print Network [OSTI]

ABSTRACT Natural Streamf low Cycles and Effects on Water Supply Reliability. (August 2002) Fabrice Felden, Diploma de I'Ecole Speciale des Travaux Publics Chair of Advisory Committee: Dr. Ralph A. Wurbs The Texas Natural Resource Conservation... and cycles in streamflows that could be directly correlated to climate changes. The presence of trends and/or cycles in streamflows is primarily studied to assess the significance of not directly considering climate change in the Texas Water Availability...

Felden, Fabrice

2002-01-01T23:59:59.000Z

487

Scientific and Natural Areas (Minnesota)  

Broader source: Energy.gov [DOE]

Certain scientific and natural areas are established throughout the state for the purpose of preservation and protection. Construction and new development is prohibited in these areas.

488

Steam turbine blade reliability seminar and workshop: proceedings  

SciTech Connect (OSTI)

An EPRI workshop to address steam turbine blade reliability improvement was cohosted by Boston Edison Company in Boston, Massachusetts on July 7-9, 1982. The 142 attendees represented a broad spectrum of US utilities, equipment manufacturers, and consultants, as well as representatives from Canada, Europe, and Japan. These proceedings contain the text of the formal presentations as well as summaries of the working group sessions which were devoted to topics of particular interest to the workshop participants. The formal presentations were organized under the following general session titles: utility experience with turbine blades; blade failure mechanisms and causes; blade design for high reliability; problem solutions for operating units; and failure analysis, NDE, and diagnostics. In addition to the technical presentations, working group sessions were held on selected topics relevant to steam turbine blade reliability improvement. Each group provided a forum for engineers to exchange ideas and information in a less formal environment. These discussions focused on key issues in more detail and addressed some subjects not covered in the formal presentations. The subjects of these working groups were: low pressure turbine blade problems; solid particle erosion; steam chemistry; failure analysis, NDE, and diagnostics; effect of boiler and balance-of-plant; and retrofittable fixes for blade problems. Individual papers have been entered into EDB and ERA. (LTN)

Brown, R.G.; Quilliam, J.F. (eds.)

1985-07-01T23:59:59.000Z

489

Reliability concerns with logical constants in Xilinx FPGA designs  

SciTech Connect (OSTI)

In Xilinx Field Programmable Gate Arrays logical constants, which ground unused inputs and provide constants for designs, are implemented in SEU-susceptible logic. In the past, these logical constants have been shown to cause the user circuit to output bad data and were not resetable through off-line rcconfiguration. In the more recent devices, logical constants are less problematic, though mitigation should still be considered for high reliability applications. In conclusion, we have presented a number of reliability concerns with logical constants in the Xilinx Virtex family. There are two main categories of logical constants: implicit and explicit logical constants. In all of the Virtex devices, the implicit logical constants are implemented using half latches, which in the most recent devices are several orders of magnitudes smaller than configuration bit cells. Explicit logical constants are implemented exclusively using constant LUTs in the Virtex-I and Virtex-II, and use a combination of constant LUTs and architectural posts to the ground plane in the Virtex-4. We have also presented mitigation methods and options for these devices. While SEUs in implicit and some types of explicit logical constants can cause data corrupt, the chance of failure from these components is now much smaller than it was in the Virtex-I device. Therefore, for many cases, mitigation might not be necessary, except under extremely high reliability situations.

Quinn, Heather M [Los Alamos National Laboratory; Graham, Paul [Los Alamos National Laboratory; Morgan, Keith [Los Alamos National Laboratory; Ostler, Patrick [Los Alamos National Laboratory; Allen, Greg [JPL; Swift, Gary [XILINX; Tseng, Chen W [XILINX

2009-01-01T23:59:59.000Z

490

Achieving High Reliability Operations Through Multi-Program Integration  

SciTech Connect (OSTI)

Over the last 20 years the Idaho National Laboratory (INL) has adopted a number of operations and safety-related programs which has each periodically taken its turn in the limelight. As new programs have come along there has been natural competition for resources, focus and commitment. In the last few years, the INL has made real progress in integrating all these programs and are starting to realize important synergies. Contributing to this integration are both collaborative individuals and an emerging shared vision and goal of the INL fully maturing in its high reliability operations. This goal is so powerful because the concept of high reliability operations (and the resulting organizations) is a masterful amalgam and orchestrator of the best of all the participating programs (i.e. conduct of operations, behavior based safety, human performance, voluntary protection, quality assurance, and integrated safety management). This paper is a brief recounting of the lessons learned, thus far, at the INL in bringing previously competing programs into harmony under the goal (umbrella) of seeking to perform regularly as a high reliability organization. In addition to a brief diagram-illustrated historical review, the authors will share the INL’s primary successes (things already effectively stopped or started) and the gaps yet to be bridged.

Holly M. Ashley; Ronald K. Farris; Robert E. Richards

2009-04-01T23:59:59.000Z

491

Stochastic PV performance/reliability model : preview of alpha version.  

SciTech Connect (OSTI)

Problem Statement: (1) Uncertainties in PV system performance and reliability impact business decisions - Project cost and financing estimates, Pricing service contracts and guarantees, Developing deployment and O&M strategies; (2) Understanding and reducing these uncertainties will help make the PV industry more competitive (3) Performance has typically been estimated without much attention to reliability of components; and (4) Tools are needed to assess all inputs to the value proposition (e.g., LCOE, cash flow, reputation, etc.). Goals and objectives are: (1) Develop a stochastic simulation model (in GoldSim) that can represent PV system performance as a function of system design, weather, reliability, and O&M policies; (2) Evaluate performance for an example system to quantify sources of uncertainty and identify dominant parameters via a sensitivity study; and (3) Example System - 1 inverter, 225 kW DC Array latitude tilt (90 strings of 12 modules {l_brace}1080 modules{r_brace}), Weather from Tucumcari, NM (TMY2 with annual uncertainty).

Stein, Joshua S.; Miller, Steven P.

2010-03-01T23:59:59.000Z

492

PV Module Reliability R&D Project Overview  

SciTech Connect (OSTI)

The DOE Solar Energy Technologies Program includes a sub-key activity entitled ''Photovoltaic Module Reliability R&D''. This activity has been in existence for several years to help ensure that the PV technologies that advance to the commercial module stage have acceptable service lifetimes and annual performance degradation rates. The long-term (2020) goal, as stated in the Solar Program Multi-Year Technical Plan [1], is to assist industry with the development of PV systems that have 30-year service lifetimes and 1% annual performance degradation rates. The corresponding module service lifetimes and annual performance degradation rate would have to be 30 years lifetime and approximately 0.5% (or less, depending on the type of PV system) annual performance degradation. Reaching this goal is critical to achieving the PV technology Levelized Energy Cost Targets, as listed and described in the Solar Program Multi-Year Technical Plan. This paper is an overview of the Module Reliability R&D sub-key activity. More details and the major results and accomplishments are covered in the papers presented in the PV Module Reliability Session of the DOE Solar Energy Technology Review Meeting, October 25-28, 2004, in Denver, Colorado.

Hulstrom, R. L.

2005-01-01T23:59:59.000Z

493

Gearbox Reliability Collaborative Phase 3 Gearbox 2 Test Plan  

SciTech Connect (OSTI)

Gearboxes in wind turbines have not been achieving their expected design life even though they commonly meet or exceed the design criteria specified in current design standards. One of the basic premises of the National Renewable Energy Laboratory (NREL) Gearbox Reliability Collaborative (GRC) is that the low gearbox reliability results from the absence of critical elements in the design process or insufficient design tools. Key goals of the GRC are to improve design approaches and analysis tools and to recommend practices and test methods resulting in improved design standards for wind turbine gearboxes that lower the cost of energy (COE) through improved reliability. The GRC uses a combined gearbox testing, modeling and analysis approach, along with a database of information from gearbox failures collected from overhauls and investigation of gearbox condition monitoring techniques to improve wind turbine operations and maintenance practices. Testing of Gearbox 2 (GB2) using the two-speed turbine controller that has been used in prior testing. This test series will investigate non-torque loads, high-speed shaft misalignment, and reproduction of field conditions in the dynamometer. This test series will also include vibration testing using an eddy-current brake on the gearbox's high speed shaft.

Link, H.; Keller, J.; Guo, Y.; McNiff, B.

2013-04-01T23:59:59.000Z

494

Reliable High Performance Peta- and Exa-Scale Computing  

SciTech Connect (OSTI)

As supercomputers become larger and more powerful, they are growing increasingly complex. This is reflected both in the exponentially increasing numbers of components in HPC systems (LLNL is currently installing the 1.6 million core Sequoia system) as well as the wide variety of software and hardware components that a typical system includes. At this scale it becomes infeasible to make each component sufficiently reliable to prevent regular faults somewhere in the system or to account for all possible cross-component interactions. The resulting faults and instability cause HPC applications to crash, perform sub-optimally or even produce erroneous results. As supercomputers continue to approach Exascale performance and full system reliability becomes prohibitively expensive, we will require novel techniques to bridge the gap between the lower reliability provided by hardware systems and users unchanging need for consistent performance and reliable results. Previous research on HPC system reliability has developed various techniques for tolerating and detecting various types of faults. However, these techniques have seen very limited real applicability because of our poor understanding of how real systems are affected by complex faults such as soft fault-induced bit flips or performance degradations. Prior work on such techniques has had very limited practical utility because it has generally focused on analyzing the behavior of entire software/hardware systems both during normal operation and in the face of faults. Because such behaviors are extremely complex, such studies have only produced coarse behavioral models of limited sets of software/hardware system stacks. Since this provides little insight into the many different system stacks and applications used in practice, this work has had little real-world impact. My project addresses this problem by developing a modular methodology to analyze the behavior of applications and systems during both normal and faulty operation. By synthesizing models of individual components into a whole-system behavior models my work is making it possible to automatically understand the behavior of arbitrary real-world systems to enable them to tolerate a wide range of system faults. My project is following a multi-pronged research strategy. Section II discusses my work on modeling the behavior of existing applications and systems. Section II.A discusses resilience in the face of soft faults and Section II.B looks at techniques to tolerate performance faults. Finally Section III presents an alternative approach that studies how a system should be designed from the ground up to make resilience natural and easy.

Bronevetsky, G

2012-04-02T23:59:59.000Z

495

Large area bulk superconductors  

DOE Patents [OSTI]

A bulk superconductor having a thickness of not less than about 100 microns is carried by a polycrystalline textured substrate having misorientation angles at the surface thereof not greater than about 15.degree.; the bulk superconductor may have a thickness of not less than about 100 microns and a surface area of not less than about 50 cm.sup.2. The textured substrate may have a thickness not less than about 10 microns and misorientation angles at the surface thereof not greater than about 15.degree.. Also disclosed is a process of manufacturing the bulk superconductor and the polycrystalline biaxially textured substrate material.

Miller, Dean J. (Darien, IL); Field, Michael B. (Jersey City, NJ)

2002-01-01T23:59:59.000Z

496

Western Area Power Administration  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun Deng Associate ResearchWestern Area Power

497

700 Area - Hanford Site  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |November 2011 Mon, Next2025Steps to MakingImportance of700 Area

498

CEES - Focus Areas  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation InInformationCenterResearchCASL Symposium: Celebrating the Past - VisualizingFocus Areas

499

100 Area - Hanford Site  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies | BlandinePrincetonOPT Optics MetrologyDepartment of00 Area

500

Wide-area, real-time monitoring and visualization system  

DOE Patents [OSTI]

A real-time performance monitoring system for monitoring an electric power grid. The electric power grid has a plurality of grid portions, each grid portion corresponding to one of a plurality of control areas. The real-time performance monitoring system includes a monitor computer for monitoring at least one of reliability metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and markets metrics for the electric power grid. The data for metrics being monitored by the monitor computer are stored in a data base, and a visualization of the metrics is displayed on at least one display computer having a monitor. The at least one display computer in one said control area enables an operator to monitor the grid portion corresponding to a different said control area.

Budhraja, Vikram S. (Los Angeles, CA); Dyer, James D. (La Mirada, CA); Martinez Morales, Carlos A. (Upland, CA)

2011-11-15T23:59:59.000Z