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1

Chapter Three - Pipeline Reliability Assessment  

Science Journals Connector (OSTI)

Abstract Another aspect of pipeline integrity management is the assessment of system reliability over the age of the pipeline. In order to assess the aging effects through the pipe’s lifetime, a reliability assessment is carried out for the pipeline or its segment. The assessment of the residual stress effect is carried out by evaluating the reliability of new uncorroded pipelines, which are assumed to be free from any flaw. The influence of residual stress parameters, mean, and coefficient of variation are considered in the reliability assessment.

Ramesh Singh

2014-01-01T23:59:59.000Z

2

Definition: Reliability Coordinator Area | Open Energy Information  

Open Energy Info (EERE)

Coordinator Area Coordinator Area Jump to: navigation, search Dictionary.png Reliability Coordinator Area The collection of generation, transmission, and loads within the boundaries of the Reliability Coordinator. Its boundary coincides with one or more Balancing Authority Areas.[1] Related Terms transmission lines, Reliability Coordinator, Balancing Authority Area, transmission line, balancing authority, smart grid References ↑ Glossary of Terms Used in Reliability Standards An inlin LikeLike UnlikeLike You like this.Sign Up to see what your friends like. e Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Reliability_Coordinator_Area&oldid=502626" Categories: Definitions ISGAN Definitions What links here Related changes Special pages

3

Reliability Assessment of Distribution Systems.  

E-Print Network (OSTI)

?? A stable and reliable electric power supply system is an inevitable pre-requisite for the technological and economic growth of any nation. Due to this,… (more)

Dorji, Tempa

2009-01-01T23:59:59.000Z

4

Reliability assessment of a 1 MV LTD.  

SciTech Connect

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

5

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

6

Puget Sound area electric reliability plan  

SciTech Connect

Various conservation, load management, and fuel switching programs were considered as ways to reduce or shift system peak load. These programs operate at the end-use level, such as residential water heat. Figure D-1a shows what electricity consumption for water heat looks like on normal and extreme peak days. Load management programs, such as water heat control, are designed to reduce electricity consumption at the time of system peak. On the coldest day in average winter, system load peaks near 8:00 a.m. In a winter with extremely cold weather, electricity consumption increases fr all hours, and the system peak shifts to later in the morning. System load shapes in the Puget Sound area are shown in Figure D-1b for a normal winter peak day (February 2, 1988) and extreme peak day (February 3, 1989). Peak savings from any program are calculated to be the reduction in loads on the entire system at the hour of system peak. Peak savings for all programs are measured at 8:00 a.m. on a normal peak day and 9:00 a.m. on an extreme peak day. On extremely cold day, some water heat load shifts to much later in the morning, with less load available for shedding at the time of system peak. Models of hourly end-use consumption were constructed to simulate the impact of conservation, land management, and fuel switching programs on electricity consumption. Javelin, a time-series simulating package for personal computers, was chosen for the hourly analysis. Both a base case and a program case were simulated. 15 figs., 7 tabs.

Not Available

1991-09-01T23:59:59.000Z

7

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

8

EIS-0160: Puget Sound Area Electric Reliability Plan  

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

9

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

10

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

SciTech Connect

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

11

Puget Sound area electric reliability plan. Draft environmental impact statement  

SciTech Connect

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

12

Reliability assessment of autonomous power systems incorporating HVDC interconnection links  

SciTech Connect

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

13

Software system reliability and safety assessment: an extended FMEA approach  

Science Journals Connector (OSTI)

This paper presents a methodology for assessing the reliability and safety of a software based on an extended Failure Modes and Effects Analysis (FMEA) approach. The methodology is described in steps with illustrative examples. The analysis starts from initial phase of the software development and evolves during the subsequent phases of software development providing valuable information to each phases. Finally, the analysis yields a quantitative assessment of reliability and safety of the software system. The paper's main objective is to support Probabilistic Safety Assessment (PSA) in assessing risk. Risk is a function of severity and failure frequency/probability. The severity is characteristic of failure effects. Failures may be analysed as functional or component failure. In this paper, it is proposed to consider severity levels at functional failure level as it is easier to understand failure effects at functional level. Moreover, various logical combinations of different functional failures can also be formed and analysed using the proposed approach.

Sinda Rebello; Neeraj Kumar Goyal

2010-01-01T23:59:59.000Z

14

Assessing the reliability of web-based statistical software  

E-Print Network (OSTI)

1 Assessing the reliability of web-based statistical software A. M. Kitchen, R. Drachenberg, J and Technology were used to evaluate the accuracy and precision of two web-based statistical packages, Web and is double precision in WebStat). For most statistical analysis needs, the level of accuracy found in Web

Symanzik, Jürgen

15

Alderwood Area Service Environmental Assessment.  

SciTech Connect

Bonneville Power Administration's (BPA's) proposal to build a new 115-kV transmission line and 115-12.5-kV, 25-MW substation in the Alderwood, Oregon, area is discussed in the attached Environmental Assessment. The proposed substation site has been relocated about 500 feet east of the site outlined in the Environmental Assessment, but in the same field. This is not a substantial change relevant to environmental concerns. Environmental impacts of the new site differ only in that: Two residences will be visually affected. The substation will be directly across Highway 36 from two houses and would be seen in their primary views. This impact will be mitigated by landscaping the substation to create a vegetative screen. To provide access to the new site and provide for Blachly-Lane Cooperative's distribution lines, a 60-foot-wide right-of-way about 200 feet long will be needed. The total transmission line length will be less than originally planned. However, the tapline into the substation will be about 50 feet longer. 4 figs.

United States. Bonneville Power Administration.

1982-06-01T23:59:59.000Z

16

ORISE 04-0115 Human Reliability Program Medical Assessments 2004  

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

ORISE 04-0115 ORISE 04-0115 Office of Security U. S. Department of Energy Human Reliability Program MEDICAL ASSESSMENTS Center for Human Reliability Studies Oak Ridge Institute for Science and Education Operated by Oak Ridge Associated Universities For the U. S. Department of Energy Oak Ridge Associated Universities (ORAU) is a university consortium leveraging the scientific strength of major research institutions to advance science and education by partnering with national laboratories, government agencies, and private industry. ORAU manages the Oak Ridge Institute for Science and Education for the U.S. Department of Energy (DOE). Oak Ridge Institute for Science and Education (ORISE) is a DOE facility focusing on scientific initiatives to research health risks from occupational hazards, assess environmental cleanup, respond to radiation medical

17

Nuclear Computerized Library for Assessing Reactor Reliability (NUCLARR)  

SciTech Connect

This Reference Guide contains instructions on how to install and use Version 3.5 of the NRC-sponsored Nuclear Computerized Library for Assessing Reactor Reliability (NUCLARR). The NUCLARR data management system is contained in compressed files on the floppy diskettes that accompany this Reference Guide. NUCLARR is comprised of hardware component failure data (HCFD) and human error probability (HEP) data, both of which are available via a user-friendly, menu driven retrieval system. The data may be saved to a file in a format compatible with IRRAS 3.0 and commercially available statistical packages, or used to formulate log-plots and reports of data retrieval and aggregation findings.

Gilbert, B.G.; Richards, R.E.; Reece, W.J.; Gertman, D.I.

1992-10-01T23:59:59.000Z

18

An approach for assessing ALWR passive safety system reliability  

SciTech Connect

Many advanced light water reactor designs incorporate passive rather than active safety features for front-line accident response. A method for evaluating the reliability of these passive systems in the context of probabilistic risk assessment has been developed at Sandia National Laboratories. This method addresses both the component (e.g. valve) failure aspect of passive system failure, and uncertainties in system success criteria arising from uncertainties in the system's underlying physical processes. These processes provide the system's driving force; examples are natural circulation and gravity-induced injection. This paper describes the method, and provides some preliminary results of application of the approach to the Westinghouse AP600 design.

Hake, T M

1991-01-01T23:59:59.000Z

19

Assessment of microelectronics packaging for high temperature, high reliability applications  

SciTech Connect

This report details characterization and development activities in electronic packaging for high temperature applications. This project was conducted through a Department of Energy sponsored Cooperative Research and Development Agreement between Sandia National Laboratories and General Motors. Even though the target application of this collaborative effort is an automotive electronic throttle control system which would be located in the engine compartment, results of this work are directly applicable to Sandia`s national security mission. The component count associated with the throttle control dictates the use of high density packaging not offered by conventional surface mount. An enabling packaging technology was selected and thermal models defined which characterized the thermal and mechanical response of the throttle control module. These models were used to optimize thick film multichip module design, characterize the thermal signatures of the electronic components inside the module, and to determine the temperature field and resulting thermal stresses under conditions that may be encountered during the operational life of the throttle control module. Because the need to use unpackaged devices limits the level of testing that can be performed either at the wafer level or as individual dice, an approach to assure a high level of reliability of the unpackaged components was formulated. Component assembly and interconnect technologies were also evaluated and characterized for high temperature applications. Electrical, mechanical and chemical characterizations of enabling die and component attach technologies were performed. Additionally, studies were conducted to assess the performance and reliability of gold and aluminum wire bonding to thick film conductor inks. Kinetic models were developed and validated to estimate wire bond reliability.

Uribe, F.

1997-04-01T23:59:59.000Z

20

A Unified Framework for Reliability Assessment of Wind Energy Conversion Systems  

E-Print Network (OSTI)

1 A Unified Framework for Reliability Assessment of Wind Energy Conversion Systems Sebastian S a framework for assessing wind energy conversion systems (WECS) reliability in the face of external based on wind energy are: the impact of wind speed variability on system reliability [1]; WECS' reaction

Liberzon, Daniel

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

A Framework for Reliability and Performance Assessment of Wind Energy Conversion Systems  

E-Print Network (OSTI)

1 A Framework for Reliability and Performance Assessment of Wind Energy Conversion Systems proposes a framework for reliability and dynamic performance assessment of wind energy conversion systems--Reliability, Dynamic Performance, Wind Power, Wind Energy Conversion System (WECS), Doubly-Fed Induction Generator

Liberzon, Daniel

22

Reliability Assessment of Fault-Tolerant Dc-Dc Converters for Photovoltaic Applications  

E-Print Network (OSTI)

Reliability Assessment of Fault-Tolerant Dc-Dc Converters for Photovoltaic Applications Sairaj V in photovoltaic energy processing applications is presented. The proposed approach acknowledges the influence through several case studies. Index Terms-- Markov reliability modeling, photovoltaic systems, power

Liberzon, Daniel

23

Reliability Assessment of a Power Grid with Customer Operated CHP Systems Using Monte Carlo Simulation.  

E-Print Network (OSTI)

??This thesis presents a method for reliability assessment of a power grid with distributed generation providing support to the system. The distributed generation units considered… (more)

Manohar, Lokesh Prakash

2009-01-01T23:59:59.000Z

24

A statistical approach to assess measurement reliability of functional DOT for brain imaging  

Science Journals Connector (OSTI)

A statistical approach, based on six forms of the intraclass correlation coefficient, is reviewed, interpreted, and used to assess measurement reliability of functional DOT for brain...

LI, LIN; Zeng, Li; Cazzell, Mary A; Liu, Hanli

25

McMinnville Area Support Transmission Project : Environmental Assessment.  

SciTech Connect

This document discusses a project to provide continuing reliable electrical service to the McMinnville, Oregon, area. BPA proposes to participate with the City of McMinnville Water and Light Department in constructing a new 230-kilovolt transmission line and substation. BPA has prepared an environmental assessment evaluating the proposed project. Reasons that constructing the line and substation would not cause significant environmental impact include: consistency with local land use plans, consistency of appearance with existing transmission and manufacturing facilities in the area, only slight effect on farmland, and avoidance of wetlands and other environmentally sensitive areas. A finding is included that there is no practicable alternative to locating the project within a 100-year floodplain. 1 fig.

United States. Bonneville Power Administration.

1990-01-01T23:59:59.000Z

26

CERTS 2012 Program Review - Reliability Standards Analysis and Assessment - Gil Tam, EPG  

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

12-13, 2012 12-13, 2012 Washington, DC FY12 DOE/CERTS Transmission Reliability R&D Internal Program Review Research Projects Reliability Standards Analysis and Assessments  Frequency Response Event Collection and Analysis  NERC Interconnections 2011 Annual Grid Reliability Performance Analysis and Report Page 1 Reliability Standards Analysis and Assessment  Objective: Support the NERC committees/groups (Resource Subcommittee and RS- Frequency Working Group) in the following ways: - Perform grid reliability metrics analysis using data collected in CERTS applications as requested by the RS - Analyze collected data to assess reliability performance at different levels - Interconnection, Reliability Coordinator, Balancing Authority - Perform analysis, testing, and monitoring of current and proposed

27

A reliability assessment methodology for distribution systems with distributed generation  

E-Print Network (OSTI)

Generation and Micro-Grid Networks. v TABLE OF CONTENTS CHAPTER Page I INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1 B. Distribution System Reliability... Generation and Micro-Grid Networks. v TABLE OF CONTENTS CHAPTER Page I INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1 B. Distribution System Reliability...

Duttagupta, Suchismita Sujaya

2006-08-16T23:59:59.000Z

28

3000 Area Phase 1 environmental assessment  

SciTech Connect

The US Department of Energy (DOE) is planning to sell the 3000 Area to prospective buyers. Environmental Services was requested by the WHC Economic Transition group to assess potential environmental liabilities in the area. Historical review of the area indicated that the site was the location of ``Camp Hanford`` in 1951 and has been used for a variety of purposes since then. The activities in the area have changed over the years. A number of Buildings from the area have been demolished and at least 15 underground storage tanks (USTs) have been removed. Part of the 3000 Area was identified as Operable Unit 1100-EM-3 in the Tri-Party Agreement and was cleaned up by the US Army Corps of Engineers (USACE). The cleanup included removal of contaminated soil and USTS. WHC and ICF KH had also performed sampling and analysis at some locations in the 3000 Area prior to USACE`s work on the Operable Unit 1100-EM-3. They removed a number of USTs and performed remediation.

Ranade, D.G.

1995-09-01T23:59:59.000Z

29

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

SciTech Connect

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

30

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.S£CTION Reliability of Wind Power From Dispersed Sites: A Pr

Kahn, E.

2011-01-01T23:59:59.000Z

31

Ashland Area Support Substation Project : Environmental Assessment.  

SciTech Connect

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

32

Area C borrow Site Habitat Assessment  

SciTech Connect

A habitat quality assessment was performed within selected portions of the proposed Area C Borrow Source. The previously identified Bitterbrush / Indian ricegrass stabilized dune element occurrence was determined to be better described as a sagebrush /needle-and-thread grass element occurrence of fair to good quality. A new habitat polygon is suggested adjacent to this element occurrence, which would also be sagebrush/needle-and-thread grass, but of poor quality. The proposed site of initial borrow site development was found to be a very low quality community dominated by cheatgrass.

Sackschewsky, Michael R.; Downs, Janelle L.

2009-12-04T23:59:59.000Z

33

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

SciTech Connect

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

34

A case study on effectiveness of structural reliability analysis in nuclear reactor safety assessment  

Science Journals Connector (OSTI)

Problems on reliability of structural integrity occupy an important position in various aspects of nuclear reactor safety. In the present paper, an effective method for quantitative evaluation of structural reliability based on ‘stress strength model’ is developed with the objectives of taking a larger number of factors into the evaluation than before and giving useful results within moderate computing time. The method is applied to the reliability analysis of PWR pressure vessels. The results show the relative importance of inspection as well as the parameter uncertainty for assuring the reliability of the structure, although analysis is limited within the scope of linear elastic fracture mechanics (LEFM). This case study also shows that the analysis of structural reliability is effective for safety assessment of nuclear power plants in general and possibly for the improvements of the consistency in the design code.

A. Yamaguchi; S. Kondo; Y. Togo

1983-01-01T23:59:59.000Z

35

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

SciTech Connect

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

36

Assessing the reliability of dose coefficients for ingestion and inhalation of 226Ra and 90Sr by members of the public  

Science Journals Connector (OSTI)

......Papers Assessing the reliability of dose coefficients...used to assess the reliability of the appropriate...informing judgements on reliability. This paper describes...parameter uncertainty analysis to quantify uncertainties...testing and nuclear reactor accidents. The results......

M. Puncher

2014-01-01T23:59:59.000Z

37

Multi Anode Photomultiplier Tube Reliability Assessment for the JEM-EUSO Space Mission  

E-Print Network (OSTI)

Reliability assessment in concerned with the analysis of devices and systems whose individual components are prone to fail. This reliability analysis documents the process and results of reliability determination of the JEM-EUSO photomultiplier tube component using the methods 217 Plus. Quantum efficiency degradation and radiation hardness assurance. In conclussion, the levels of damage suffered by the PMTs which comprise the focal surface of JEM-EUSO Space Telescope, are acceptable. The results show as well the greatest contribution to the failure is due to radiation SET. The guaranteed performance of this equipment is a 99.45 per cent, an accepted value of reliability thus fulfilling the objectives and technological challenges of JEM-EUSO.

Prieto-Alfonso, H; Casolino, M; Tsuno, K; Ebisuzaki, T; Frías, M D Rodríguez

2015-01-01T23:59:59.000Z

38

Assessing the Reliability and Economics of Wide-Scale Grid-Connected  

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

Assessing the Reliability and Economics of Wide-Scale Grid-Connected Assessing the Reliability and Economics of Wide-Scale Grid-Connected Distributed Energy Generation with Application to Electric Power Systems Under Stress Speaker(s): Hisham Zerriffi Date: November 13, 2003 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Kristina LaCommare Electric power systems can be disrupted due to a variety of stress circumstances. These can range from constraints on the physical infrastructure as a result of under-capacity problems to deliberate attacks in times of conflict. Stress conditions can manifest themselves in a variety of ways and determining both the nature of the stress and the best mathematical representation of that stress in the model is complicated. This talk details a quantitative comparison of the reliability of an

39

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

E-Print Network (OSTI)

2007. Integration of Renewable Resources. Transmissionfor integrating renewable resources on the California ISO-assess the level of renewable resources that can be reliably

Eto, Joseph H.

2011-01-01T23:59:59.000Z

40

Can biomass time series be reliably assessed from CPUE time series data Francis Lalo1  

E-Print Network (OSTI)

1 Can biomass time series be reliably assessed from CPUE time series data only? Francis Laloë1 to abundance. This means (i) that catchability is constant and (ii) that all the biomass is catchable. If so, relative variations in CPUE indicate the same relative variations in biomass. Myers and Worm consider

Hawai'i at Manoa, University of

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

Optimized Sampling Frequencies for Weld Reliability Assessments of Long Pipeline Segments  

E-Print Network (OSTI)

. To be on the safe side, regulations require that a pipeline be repaired when it is possible that p â?? p 0 , i.e., when p â?? p 0 . Need for Optimal Resource Allocation for Pipeline As­ sessment: Pipeline repairsOptimized Sampling Frequencies for Weld Reliability Assessments of Long Pipeline Segments Cesar J

Kreinovich, Vladik

42

Optimized Sampling Frequencies for Weld Reliability Assessments of Long Pipeline Segments  

E-Print Network (OSTI)

. To be on the safe side, regulations require that a pipeline be repaired when it is possible that p p0, i.e., when p p0. Need for Optimal Resource Allocation for Pipeline As- sessment: Pipeline repairs are extremelyOptimized Sampling Frequencies for Weld Reliability Assessments of Long Pipeline Segments Cesar J

Kreinovich, Vladik

43

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

SciTech Connect

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

44

On Assessing the Accuracy of Offshore Wind Turbine Reliability-Based Design Loads from the Environmental Contour Method  

E-Print Network (OSTI)

On Assessing the Accuracy of Offshore Wind Turbine Reliability-Based Design Loads from to derive design loads for an active stall-regulated offshore wind turbine. Two different Danish offshore contour method; wind turbine; offshore; reliability. INTRODUCTION Inverse reliability techniques

Manuel, Lance

45

Puget Sound Area Electric Reliability Plan : Scoping Summary Report - Part B Preliminary Technical Analysis Appendix A.  

SciTech Connect

This report describes in general terms the nature of the voltage instability problem facing the Puget Sound area. The following two chapters cover the technical aspects of the problem. It deals with load growth, the root cause of the problem. Also addressed is the capacity of the current power system and the criteria for future system planning. It also explains the technical results of transmission system modeling which confirm the system's vulnerability to voltage instability, the principal symptom of the problem. The results of the scoping process in each of the four measure categories are presented. Included are lists of all options identified, a discussion of the screening criteria, and descriptions of the measures that survived the screening process and are proposed for further evaluation in Phase 2. We discuss the evaluation methodology which will be used to refine the analyses. The next steps in the planning process are outlined. It also describes the short term operational agreements that will assure continued reliable service until a long term solution is in place. 8 figs., 22 tabs.

United States. Bonneville Power Administration.

1991-09-01T23:59:59.000Z

46

Appendix H Colorado Statewide Forest Resource Assessment Urban Influence Areas  

E-Print Network (OSTI)

1 Appendix H ­ Colorado Statewide Forest Resource Assessment Urban Influence Areas Overview of the Urban and Community Forestry Layer 1. Start with Night Lights data and clip to Colorado Boundary code = 11020). a. Create a new shapefile called UrbanInfluenceAreas_withCapacity.shp. b. Add fields

47

Imprecise Reliability Assessment and Decision-Making when the Type of the Probability Distribution of the Random Variables is  

E-Print Network (OSTI)

1 Imprecise Reliability Assessment and Decision-Making when the Type of the Probability Distribution of the Random Variables is Unknown Efstratios Nikolaidis Department of Mechanical Industrial@oakland.edu First ISSMO Internet Conference on Reliability-based Structural Optimization Keywords: Imprecise

Nikolaidis, Efstratios

48

Nuclear Computerized Library for Assessing Reactor Reliability (NUCLARR). Version 3.5, Quick Reference Guide  

SciTech Connect

This Reference Guide contains instructions on how to install and use Version 3.5 of the NRC-sponsored Nuclear Computerized Library for Assessing Reactor Reliability (NUCLARR). The NUCLARR data management system is contained in compressed files on the floppy diskettes that accompany this Reference Guide. NUCLARR is comprised of hardware component failure data (HCFD) and human error probability (HEP) data, both of which are available via a user-friendly, menu driven retrieval system. The data may be saved to a file in a format compatible with IRRAS 3.0 and commercially available statistical packages, or used to formulate log-plots and reports of data retrieval and aggregation findings.

Gilbert, B.G.; Richards, R.E.; Reece, W.J.; Gertman, D.I.

1992-10-01T23:59:59.000Z

49

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

SciTech Connect

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

50

Reliability assessment of Passive Containment Cooling System of an Advanced Reactor using APSRA methodology  

Science Journals Connector (OSTI)

Abstract Passive Systems are increasingly playing a prominent role in the advanced nuclear reactor systems and are being utilised in normal operations as well as safety systems of the reactors following an accident. The Passive Containment Cooling System (PCCS) is one of the several passive safety features in an Advanced Reactor (AHWR). In this paper, the APSRA methodology has been employed for reliability evaluation of the PCCS of AHWR. Performance assessment of the PCCS is initially performed during a postulated design basis LOCA using the best-estimate code RELAP5/Mod 3.2. The parameters affecting the system performance are then identified and considered for further analysis. Based on some pre-determined failure criterion, the failure surface for the system is predicted using the best-estimate code taking into account the deviations of the identified parameters from their nominal states as well as the model uncertainties inherent to the best estimate code. Root diagnosis is then carried out to determine the various failure causes, which occurs mainly due to malfunctioning of mechanical components. The failure probabilities of the various components are assessed through a classical PSA treatment using generic data. The reliability of the PCCS is then evaluated from the probability of availability of these components.

Mukesh Kumar; Aranyak Chakravarty; A.K. Nayak; Hari Prasad; V. Gopika

2014-01-01T23:59:59.000Z

51

NETL: Carbon Storage - Simulation and Risk Assessment Focus Area  

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

Simulation and Risk Assessment Simulation and Risk Assessment Carbon Storage Simulation and Risk Assessment Focus Area The Simulation and Risk Assessment Focus Area is an integrated effort to develop advanced simulation models of the subsurface and integrate the results into a risk assessment that includes both technical and programmatic risks. As the simulation models are refined with new data, the uncertainty surrounding the identified risks decreases, which in turn provides a more accurate risk assessment and mitigation plan for each project site. Both qualitative and quantitative protocols will be developed to ensure the safe and permanent storage of carbon dioxide (CO2). Results from the simulation models will be incorporated into risk assessments on a project-by-project basis and on a larger basin-scale. As carbon capture and storage (CCS) becomes deployed in major basins, macro model results will be needed to manage reservoirs for pressure management, plume migration, and potential risks of multiple CO2 injection projects across the basin.

52

Valuing time and reliability: assessing the evidence from road pricing demonstrations  

E-Print Network (OSTI)

distribution of motorists’ preferences for travel time and reliability:time and reliability as preferences about this distribution.reliability can be fruitfully modeled as a property of the upper tail of the travel-time distribution

Brownstone, David; Small, K A

2005-01-01T23:59:59.000Z

53

Uncertainty Quantification in the Reliability and Risk Assessment of Generation IV Reactors: Final Scientific/Technical Report  

SciTech Connect

The project entitled, “Uncertainty Quantification in the Reliability and Risk Assessment of Generation IV Reactors”, was conducted as a DOE NERI project collaboration between Texas A&M University and The Ohio State University between March 2006 and June 2009. The overall goal of the proposed project was to develop practical approaches and tools by which dynamic reliability and risk assessment techniques can be used to augment the uncertainty quantification process in probabilistic risk assessment (PRA) methods and PRA applications for Generation IV reactors. This report is the Final Scientific/Technical Report summarizing the project.

Vierow, Karen; Aldemir, Tunc

2009-09-10T23:59:59.000Z

54

Development of Autonomous Magnetometer Rotorcraft For Wide Area Assessment  

SciTech Connect

Large areas across the United States and internationally are potentially contaminated with unexploded ordinance (UXO), with some ranges encompassing tens to hundreds of thousands of acres. Technologies are needed which will allow for cost effective wide area scanning with (1) near 100% coverage and (2) near 100% detection of subsurface ordnance or features indicative of subsurface ordnance. The current approach to wide area assessment is a multi-level one, in which medium - altitude fixed wing optical imaging is used for an initial site assessment. This assessment is followed with low altitude manned helicopter based magnetometry. Subsequent to this wide area assessment targeted surface investigations are performed using either towed geophysical sensor arrays or man portable sensors. In order to be an effective tool for small UXO detection, the sensing altitude for magnetic site investigations needs to be on the order of 1 to 3 meters. These altitude requirements mean that manned helicopter surveys will generally only be feasible in large, open and relatively flat terrains. While such surveys are effective in mapping large areas relatively fast there are substantial mobilization/demobilization, staffing and equipment costs associated with these surveys, resulting in costs of approximately $100-$150/acre. In addition, due to the low altitude there are substantial risks to pilots and equipment. Surface towed arrays provide highresolution maps but have other limitations, e.g. in their ability to navigate rough terrain effectively. Thus there is a need for other systems, which can be used for effective data collection. An Unmanned Aerial Vehicle (UAV) magnetometer platform is an obvious alternative. The motivation behind such a system is that it reduces risk to operators, is lower in initial and Operational and Maintenance (O&M) costs (and can thus potentially be applied to smaller sites) and has the potential of being more effective in terms of detection and possibly characterization (through the use of dynamic acquisition, i.e. survey mission in-flight reprioritization).

Mark D. McKay; Matthew O. Anderson

2011-08-01T23:59:59.000Z

55

Modeling and Quantification of Team Performance in Human Reliability Analysis for Probabilistic Risk Assessment  

SciTech Connect

Probabilistic Risk Assessment (PRA) and Human Reliability Assessment (HRA) are important technical contributors to the United States (U.S.) Nuclear Regulatory Commission’s (NRC) risk-informed and performance based approach to regulating U.S. commercial nuclear activities. Furthermore, all currently operating commercial NPPs in the U.S. are required by federal regulation to be staffed with crews of operators. Yet, aspects of team performance are underspecified in most HRA methods that are widely used in the nuclear industry. There are a variety of "emergent" team cognition and teamwork errors (e.g., communication errors) that are 1) distinct from individual human errors, and 2) important to understand from a PRA perspective. The lack of robust models or quantification of team performance is an issue that affects the accuracy and validity of HRA methods and models, leading to significant uncertainty in estimating HEPs. This paper describes research that has the objective to model and quantify team dynamics and teamwork within NPP control room crews for risk informed applications, thereby improving the technical basis of HRA, which improves the risk-informed approach the NRC uses to regulate the U.S. commercial nuclear industry.

Jeffrey C. JOe; Ronald L. Boring

2014-06-01T23:59:59.000Z

56

300 Area steam plant replacement, Hanford Site, Richland, Washington: Environmental assessment  

SciTech Connect

Steam to support process operations and facility heating is currently produced by a centralized oil-fired plant located in the 300 Area and piped to approximately 26 facilities in the 300 Area. This plant was constructed during the 1940s and, because of tis age, is not efficient, requires a relatively large operating and maintenance staff, and is not reliable. The US Department of Energy is proposing an energy conservation measure for a number of buildings in the 300 Area of the Hanford Site. This action includes replacing the centralized heating system with heating units for individual buildings or groups of buildings, constructing new natural gas pipelines to provide a fuel source for many of these units and constructing a central control building to operate and maintain the system. A new steel-sided building would be constructed in the 300 Area in a previously disturbed area at least 400 m (one-quarter mile) from the Columbia River, or an existing 300 Area building would be modified and used. This Environmental Assessment evaluates alternatives to the proposed actions. Alternatives considered are: (1) the no action alternative; (2) use of alternative fuels, such as low-sulfur diesel oil; (3) construction of a new central steam plant, piping and ancillary systems; (4) upgrade of the existing central steam plant and ancillary systems; and (5) alternative routing of the gas distribution pipeline that is a part of the proposed action. A biological survey and culture resource review and survey were also conducted.

NONE

1997-03-01T23:59:59.000Z

57

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

58

Development of autonomous magnetometer rotorcraft for wide area assessment  

SciTech Connect

Large areas across the United States are potentially contaminated with UXO, with some ranges encompassing tens to hundreds of thousands of acres. Technologies are needed which will allow for cost effective wide area scanning with 1) near 100 % coverage and 2) near 100 % detection of subsurface ordnance or features indicative of subsurface ordnance. The current approach to wide area assessment is a multi-level one, in which medium - altitude fixed wing optical imaging is used for an initial site assessment. This assessment is followed with low altitude manned helicopter based magnetometry. Subsequent to this wide area assessment targeted surface investigations are performed using either towed geophysical sensor arrays or man portable sensors. In order to be an effective tool for small UXO detection, the sensing altitude for magnetic site investigations needs to be on the order of 1 – 3 meters. These altitude requirements mean that manned helicopter surveys will generally only be feasible in large, open and relatively flat terrains. While such surveys are effective in mapping large areas relatively fast there are substantial mobilization/demobilization, staffing and equipment costs associated with these surveys (resulting in costs of approximately $100-$150/acre). In addition, due to the low altitude there are substantial risks to pilots and equipment. Surface towed arrays provide high resolution maps but have other limitations, e.g. in their ability to navigate rough terrain effectively. There is thus a need for other systems which can be used for effective data collection. An UAV (Unmanned Aerial Vehicle) magnetometer platform is an obvious alternative. The motivation behind such a system is that it reduces risk to operators, is lower in initial and Operational and Maintenance (O&M) costs (and can thus potentially be applied to smaller sites) and has the potential of being more effective in terms of detection and possibly characterization (through the use of dynamic acquisition, i.e. survey mission inflight reprioritization). We describe and report on a one year effort with as primary goal to provide a recommendation to SERDP for a path forward in the implementation of one or more autonomous unmanned magnetometer rotorcraft platforms. This recommendation (which is provided in chapter 6) is based on the following three elements a) An assessment on the applicability of autonomous rotorcraft magnetometer systems to the current DoD site inventory, and an initial assessment of which type(s) of autonomous unmanned magnetometer rotorcraft platforms (in terms of performance characteristics such as payload, altitude, obstacle avoidance, production rate and flight time) would be most relevant to this inventory (chapter 3); b) An evaluation of the feasibility of assembling such platforms from commercial components (unmanned rotorcraft, control systems and sensors – both magnetometer sensors and supporting sensors). This evaluation included several highly successful field tests (chapter 4 and 5); c) A recommendation of the path forward, which includes a detailed outline of the efforts required in the design, assembly and testing of different modular platforms (chapter 6)

Roelof Versteeg; Matt Anderson; Les Beard; Eric Corban; Darryl Curley; Jeff Gamey; Ross Johnson; Dwight Junkin; Mark McKay; Jared Salzmann; Mikhail Tchernychev; Suraj Unnikrishnan; Scott Vinson

2010-04-01T23:59:59.000Z

59

Using the negative log-gamma distribution for Bayesian system reliability assessment.  

E-Print Network (OSTI)

??Modeling system reliability over time when binary data are collected both at the system and component level has been the subject of many papers. In… (more)

Zoh, Roger

2012-01-01T23:59:59.000Z

60

Puget Sound Area Electric Reliability Plan. Appendix C : Economic and Technical Evaluation.  

SciTech Connect

In this Appendix, the study framework and evaluation for economic and technical factors are explained. This material documents the analysis performed for Section 4.8 of the EIS. Coupled with the environmental analysis, the evaluation factors described below will be used to judge the relative merits of our four alternatives: alternative strategies: 1 - transmission line, 2 - voltage support, 3 - demand reduction, 4 - combustion turbines. The evaluation factors include measures of economic impacts, risk, and social responsibility. For simplicity, this study assumes that the Puget Sound area is served by a single utility. Therefore, no distinction is made between private and public utilities or load served by BPA and load served by utility-owned generation. In addition, where appropriate, costs incurred by consumers are included as well as utility costs. This study has two relevant time periods. First is the decision period, which extends from 1994 through 2003. It is during these ten years that utilities must take actions to meet peak loads in each year. The analysis continues beyond 2003 through 2010 in order to adequately capture the costs and benefits of actions taken through 2003. This longer study is period is needed because not all costs and benefits occur equally in all years. 18 tabs.

United States. Bonneville Power Administration.

1991-09-01T23:59:59.000Z

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

North American Electric Reliability Corporation (NERC): Reliability  

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

Corporation (NERC): Reliability Corporation (NERC): Reliability Considerations from the Integration of Smart Grid North American Electric Reliability Corporation (NERC): Reliability Considerations from the Integration of Smart Grid North American Electric Reliability Corporation (NERC): Reliability Considerations from the Integration of Smart Grid. NERC develops and enforces Reliability Standards; assesses adequacy annually via a ten-year forcast and winter and summer forecasts; monitors the bulk power systems; and educates, trains, and certifies industry personnel. North American Electric Reliability Corporation (NERC): Reliability Considerations from the Integration of Smart Grid More Documents & Publications Re: DOE Request for Information - Implementing the National Broadband Plan by Studying the Communications Requirements of Electric Utilities to

62

Application of fault tree analysis for customer reliability assessment of a distribution power system  

Science Journals Connector (OSTI)

A new method is developed for predicting customer reliability of a distribution power system using the fault tree approach with customer weighted values of component failure frequencies and downtimes. Conventional customer reliability prediction of the electric grid employs the system average (SA) component failure frequency and downtime that are weighted by only the quantity of the components in the system. These SA parameters are then used to calculate the reliability and availability of components in the system, and eventually to find the effect on customer reliability. Although this approach is intuitive, information is lost regarding customer disturbance experiences when customer information is not utilized in the SA parameter calculations, contributing to inaccuracies when predicting customer reliability indices in our study. Hence our new approach directly incorporates customer disturbance information in component failure frequency and downtime calculations by weighting these parameters with information of customer interruptions. This customer weighted (CW) approach significantly improves the prediction of customer reliability indices when applied to our reliability model with fault tree and two-state Markov chain formulations. Our method has been successfully applied to an actual distribution power system that serves over 2.1 million customers. Our results show an improved benchmarking performance on the system average interruption frequency index (SAIFI) by 26% between the SA-based and CW-based reliability calculations.

Fariz Abdul Rahman; Athi Varuttamaseni; Michael Kintner-Meyer; John C. Lee

2013-01-01T23:59:59.000Z

63

Tanks Focus Area (TFA) Site Needs Assessment FY 1999  

SciTech Connect

This report documents the process used by the Tanks Focus Area (TFA) to analyze and develop responses to technology needs submitted by five major U.S. Department of Energy (DOE) sites with radioactive tank waste problems, and the initial results of the analysis. The sites are the Hanford Site, Idaho National Engineering and Environmental Laboratory (INEEL), Oak Ridge Reservation (ORR), Savannah River Site (SRS), and West Valley Demonstration Project (WVDP). This is the fifth edition of the TFA site needs assessment. As with previous editions, this edition serves to provide the basis for accurately defining the TFA program for the upcoming fiscal year (FY), and adds definition to the program for up to 4 additional outyears. Therefore, this version distinctly defines the FY 2000 progrti and adds further definition to the FY 2001- FY 2004 program. Each year, the TFA reviews and amends its program in response to site users' science and technology needs.

RW Allen

1999-05-03T23:59:59.000Z

64

Environmental Assessment -- Test Area North pool stabilization project update  

SciTech Connect

The purpose of this Environmental Assessment (EA) is to update the ``Test Area North Pool Stabilization Project`` EA (DOE/EA-1050) and finding of no significant impact (FONSI) issued May 6, 1996. This update analyzes the environmental and health impacts of a drying process for the Three Mile Island (TMI) nuclear reactor core debris canisters now stored underwater in a facility on the Idaho National Engineering and Environmental Laboratory (INEEL). A drying process was analyzed in the predecision versions of the EA released in 1995 but that particular process was determined to be ineffective and dropped from the EA/FONSI issued May 6, 1996. A new drying process was subsequently developed and is analyzed in Section 2.1.2 of this document. As did the 1996 EA, this update analyzes the environmental and health impacts of removing various radioactive materials from underwater storage, dewatering these materials, constructing a new interim dry storage facility, and transporting and placing the materials into the new facility. Also, as did the 1996 EA, this EA analyzes the removal, treatment and disposal of water from the pool, and placement of the facility into a safe, standby condition. The entire action would take place within the boundaries of the INEEL. The materials are currently stored underwater in the Test Area North (TAN) building 607 pool, the new interim dry storage facility would be constructed at the Idaho Chemical Processing Plant (ICPP) which is about 25 miles south of TAN.

NONE

1997-08-01T23:59:59.000Z

65

Draft environmental assessment -- Test Area North pool stabilization project update  

SciTech Connect

The purpose of this Environmental Assessment (EA) is to update the ``Test Area North Pool Stabilization Project`` EA (DOE/EA-1050) and finding of no significant impact (FONSI) issued May 6, 1996. This update analyzes the environmental and health impacts of a drying process for the Three Mile Island (TMI) nuclear reactor core debris canisters now stored underwater in a facility on the Idaho National Engineering and Environmental Laboratory (INEEL). A drying process was analyzed in the predecision versions of the EA released in 1995 but that particular process was determined to be ineffective and dropped form the Ea/FONSI issued May 6, 1996. The origin and nature of the TMI core debris and the proposed drying process are described and analyzed in detail in this EA. As did the 1996 EA, this update analyzes the environmental and health impacts of removing various radioactive materials from underwater storage, dewatering these materials, constructing a new interim dry storage facility, and transporting and placing the materials into the new facility. Also, as did the 1996 EA, this EA analyzes the removal, treatment and disposal of water from the pool, and placement of the facility into a safe, standby condition. The entire action would take place within the boundaries of the INEEL. The materials are currently stored underwater in the Test Area North (TAN) building 607 pool, the new interim dry storage facility would be constructed at the Idaho Chemical Processing Plant (ICPP) which is about 25 miles south of TAN.

NONE

1997-06-01T23:59:59.000Z

66

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

E-Print Network (OSTI)

Thermionic Reactor (SEHPTR). The present analysis focuses on the SNPS failure to produce nominal electrical power. Typical events threatening the reliability of the SNPS will consist of hardware failures, external events, and command errors or software...

Gutner, Sophie Isabelle

2012-06-07T23:59:59.000Z

67

A Situational Assessment of Student Leadership: An Evaluation of Alternate Forms Reliability and Convergent Validity.  

E-Print Network (OSTI)

??The Situational Assessment of Leadership: Student Assessment (SALSA©) was developed in the spring of 2009 to be used as a measure of student leadership. Study… (more)

Slack, Patricia

2010-01-01T23:59:59.000Z

68

Test Area North Pool Stabilization Project: Environmental assessment  

SciTech Connect

The Test Area North (TAN) Pool is located within the fenced TAN facility boundaries on the Idaho National Engineering Laboratory (INEL). The TAN pool stores 344 canisters of core debris from the March, 1979, Three Mile Island (TMI) Unit 2 reactor accident; fuel assemblies from Loss-of-Fluid Tests (LOFT); and Government-owned commercial fuel rods and assemblies. The LOFT and government owned commercial fuel rods and assemblies are hereafter referred to collectively as {open_quotes}commercial fuels{close_quotes} except where distinction between the two is important to the analysis. DOE proposes to remove the canisters of TMI core debris and commercial fuels from the TAN Pool and transfer them to the Idaho Chemical Processing Plant (ICPP) for interim dry storage until an alternate storage location other than at the INEL, or a permanent federal spent nuclear fuel (SNF) repository is available. The TAN Pool would be drained and placed in an industrially and radiologically safe condition for refurbishment or eventual decommissioning. This environmental assessment (EA) identifies and evaluates environmental impacts associated with (1) constructing an Interim Storage System (ISS) at ICPP; (2) removing the TMI and commercial fuels from the pool and transporting them to ICPP for placement in an ISS, and (3) draining and stabilizing the TAN Pool. Miscellaneous hardware would be removed and decontaminated or disposed of in the INEL Radioactive Waste Management Complex (RWMC). This EA also describes the environmental consequences of the no action alternative.

NONE

1996-05-01T23:59:59.000Z

69

Results for the IFAS Assessment of Non-Native Plants in Florida's Natural Areas October 2012  

E-Print Network (OSTI)

Results for the IFAS Assessment of Non-Native Plants in Florida's Natural Areas October 2012 Page 1 Assessment of Non-Native Plants in Florida's Natural Areas October 2012 Page 2 North Central South North, S Index Score/Index Category # of experts / literature Assessed: July 2005 Abrus precatorius L M M L H H H

Watson, Craig A.

70

The Missing Link: Assessing the Reliability of Internet Citations in History Journals  

E-Print Network (OSTI)

(31 October 2003): 787–88; Renee Crichlow and Nicole Winbush, “Accessibility and Accuracy of Web Page References in 5 Major Medical Journals,” JAMA 292 (2004): 2723– 24; Eric J. Hester et al., “Internet Citations in Oncology Journals: A Vanishing...- search note marks the first published attempt to answer that question in any field of the humanities or social sciences.2 We examined the reliability of worldwide web citations in two leading history journals (Journal of American History and American...

Russell, Edmund P.; Kane, Jennifer

2008-04-01T23:59:59.000Z

71

2010 Transmission Reliability Program Peer Review | Department of Energy  

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

Transmission Reliability Program Peer Review Transmission Reliability Program Peer Review 2010 Transmission Reliability Program Peer Review The Transmission Reliability research area focuses on two key areas: 1) Real-Time Grid Reliability Management and 2) Reliability and Markets. The first area develops monitoring and analysis tools that process synchrophasor data to enable real-time assessment of grid status and stability margins, with the goal of improving power system reliability and visibility through wide-area measurement and control. It is developing advanced technologies and tools to help create a resilient electric transmission system that can better detect disturbances, accommodate a variety of generation sources, and automatically reconfigure the grid to prevent widespread outages and/or rebalance the system. The second area

72

An Assessment Of The External Radiological Impact In Areas Of Greece With  

Open Energy Info (EERE)

Assessment Of The External Radiological Impact In Areas Of Greece With Assessment Of The External Radiological Impact In Areas Of Greece With Elevated Natural Radioactivity Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Assessment Of The External Radiological Impact In Areas Of Greece With Elevated Natural Radioactivity Details Activities (0) Areas (0) Regions (0) Abstract: In the present study, the radiological impact assessment in three selected areas of elevated natural radioactivity in Greece is attempted, based on measurements, theoretical relations, and simple model application. These areas are Milos - an island of volcanic origin in Cyclades Archipelago, Ikaria - an island in the Eastern Aegean Sea and Loutraki - a coastal area in mainland Greece. These areas are characterized by their

73

Natural Circulation in Water Cooled Nuclear Power Plants Phenomena, models, and methodology for system reliability assessments  

SciTech Connect

In recent years it has been recognized that the application of passive safety systems (i.e., those whose operation takes advantage of natural forces such as convection and gravity), can contribute to simplification and potentially to improved economics of new nuclear power plant designs. In 1991 the IAEA Conference on ''The Safety of Nuclear Power: Strategy for the Future'' noted that for new plants the use of passive safety features is a desirable method of achieving simplification and increasing the reliability of the performance of essential safety functions, and should be used wherever appropriate''.

Jose Reyes

2005-02-14T23:59:59.000Z

74

First Draft Performance Assessment for the H-Area Tank Farm at the Savannah  

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

First Draft Performance Assessment for the H-Area Tank Farm at the First Draft Performance Assessment for the H-Area Tank Farm at the Savannah River Site First Draft Performance Assessment for the H-Area Tank Farm at the Savannah River Site The PAs are used to assess the long-term fate and transport of residual contamination in the environment and provide the Department Of Energy with reasonable assurance that the removal from service of the Savannah River Site tank farm underground radioactive waste tanks and ancillary equipment will meet defined performance objectives for the protection of human health and the environment into the future. First Draft Performance Assessment for the H-Area Tank Farm at the Savannah River Site - Part 1 First Draft Performance Assessment for the H-Area Tank Farm at the Savannah River Site - Part 2

75

Uncertainties in NDE Reliability and Assessing the Impact on RI-ISI  

SciTech Connect

A major thrust in the past 20 years has been to upgrade nondestructive examinations (NDE) for use in inservice inspection (ISI) programs to more effectively manage degradation at operating nuclear power plants. Risk-informed ISI (RI-ISI) is one of the outcomes of this work, and this approach relies heavily on the reliability of NDE, when properly applied, to detect sources of expected degradation. There have been a number of improvements in the reliability of NDE, specifically in ultrasonic testing (UT), through training of examiners, and improved equipment and procedure development. However, the most significant improvements in UT were derived by moving from prescriptive requirements to performance based requirements. Even with these substantial improvements, NDE contains significant uncertainties and RI-ISI programs need to address and accommodate this factor. As part of the work that PNNL is conducting for the U. S. Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, we are examining the impact of these uncertainties on the effectiveness of RI-ISI programs.

Doctor, Steven R.; Anderson, Michael T.

2010-08-01T23:59:59.000Z

76

Assessment of the Geothermal Potential Within the BPA Marketing Area.  

SciTech Connect

The potential of geothermal energy is estimated that can be used for direct heat applications and electrical power generation within the Bonneville Power Administration (BPA) marketing area. The BPA marketing area includes three principal states of Oregon, Washington, and Idaho and portions of California, Montana, Wyoming, Nevada, and Utah bordering on these three states. This area covers approximately 384,000 square miles and has an estimated population of 6,760,000. The total electrical geothermal potential within this marketing area is 4077 MW/sub e/ from hydrothermal resources and 16,000 MW/sub e/ from igneous systems, whereas the total thermal (wellhead) potential is 16.15 x 10/sup 15/ Btu/y. Approximately 200 geothermal resource sites were initially identified within the BPA marketing area. This number was then reduced to about 100 sites thought to be the most promising for development by the year 2000. These 100 sites, due to load area overlap, were grouped into 53 composite sites; 21-3/4 within BPA preference customer areas and 31-1/4 within nonpreference customer areas. The geothermal resource potential was then estimated for high-temperature (> 302/sup 0/F = 150/sup 0/C), intermediate-temperature (194 to 302/sup 0/F = 90 to 150/sup 0/C), and low-temperature (< 194/sup 0/F = 90/sup 0/C) resources.

Lund, John W.; Allen, Eliot D.

1980-07-01T23:59:59.000Z

77

SURVEY AND ASSESSMENT OF THE "ALAMOSA MARSHES" AREA, SAN LUIS VALLEY, COLORADO  

E-Print Network (OSTI)

SURVEY AND ASSESSMENT OF THE "ALAMOSA MARSHES" AREA, SAN LUIS VALLEY, COLORADO Colorado Natural Heritage Program College of Natural Resources, 8002 Campus Delivery Colorado State University Fort Collins, Colorado 80523-8002 #12;SURVEY AND ASSESSMENT OF THE "ALAMOSA MARSHES" AREA, SAN LUIS VALLEY, COLORADO

78

AUTOMATED UTILITY SERVICE AREA ASSESSMENT UNDER EMERGENCY CONDITIONS  

SciTech Connect

All electric utilities serve power to their customers through a variety of functional levels, notably substations. The majority of these components consist of distribution substations operating at lower voltages while a small fraction are transmission substations. There is an associated geographical area that encompasses customers who are served, defined as the service area. Analysis of substation service areas is greatly complicated by several factors: distribution networks are often highly interconnected which allows a multitude of possible switching operations; also, utilities dynamically alter the network topology in order to respond to emergency events. As a result, the service area for a substation can change radically. A utility will generally attempt to minimize the number of customers outaged by switching effected loads to alternate substations. In this manner, all or a portion of a disabled substation's load may be served by one or more adjacent substations. This paper describes a suite of analytical tools developed at Los Alamos National Laboratory (LANL), which address the problem of determining how a utility might respond to such emergency events. The estimated outage areas derived using the tools are overlaid onto other geographical and electrical layers in a geographic information system (GIS) software application. The effects of a power outage on a population, other infrastructures, or other physical features, can be inferred by the proximity of these features to the estimated outage area.

G. TOOLE; S. LINGER

2001-01-01T23:59:59.000Z

79

Tanks Focus Area Site Needs Assessment FY 2000  

SciTech Connect

This document summarizes the Tanks Focus Area (TFA's) process of collecting, analyzing, and responding to high-level radioactive tank waste science and technology needs developed from across the DOE complex in FY 2000. The document also summarizes each science and technology need, and provides an initial prioritization of TFA's projected work scope for FY 2001 and FY 2002.

Allen, Robert W.

2000-03-10T23:59:59.000Z

80

Assessment of Offshore Wind Energy Leasing Areas for the BOEM Massachusetts Wind Energy Area  

SciTech Connect

The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL), under an interagency agreement with the Bureau of Ocean Energy Management (BOEM), is providing technical assistance to identify and delineate leasing areas for offshore wind energy development within the Atlantic Coast Wind Energy Areas (WEAs) established by BOEM. This report focuses on NREL's development of three delineated leasing area options for the Massachusetts (MA) WEA and the technical evaluation of these leasing areas. The overarching objective of this study is to develop a logical process by which the MA WEA can be subdivided into non-overlapping leasing areas for BOEM's use in developing an auction process in a renewable energy lease sale. NREL worked with BOEM to identify an appropriate number of leasing areas and proposed three delineation alternatives within the MA WEA based on the boundaries announced in May 2012. A primary output of the interagency agreement is this report, which documents the methodology, including key variables and assumptions, by which the leasing areas were identified and delineated.

Musial, W.; Parker, Z.; Fields, M.; Scott, G.; Elliott, D.; Draxl, C.

2013-12-01T23:59:59.000Z

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

The soundscape of nature areas: assessment and review of research approaches  

E-Print Network (OSTI)

The soundscape of nature areas: assessment and review of research approaches M. Weber DCMR requires authorities to delineate (nature) areas where the acoustic quality is good, and to protect as maximum allowed levels (e.g. 40 dB Lday) and specific activities near or in these nature areas were

Paris-Sud XI, Université de

82

Assessing the land use suitability of mined areas in Appalachia  

SciTech Connect

The Land Use Decision Methodology (LUDM) is a planning framework for mined area land use planning. The LUDM was developed to consider the range of institutional and environmental factors that impact reclamation and land use planning for mined lands. The LUDM was developed as a generalized planning framework rather than a complex/rigid methodology. A matrix that supports the detailed site analysis component of the LUDM was also developed. The matrix has utility for illustrating the impacts that a number of mining related conditions/environmental problems can exert on the environmental feasibility and economics of alternative reclamation plans.

Gorton, W.T.; Yuill, C.B.

1982-12-01T23:59:59.000Z

83

Tanks Focus Area site needs assessment FY 2000  

SciTech Connect

This report documents the process used by the Tanks Focus Area (TFA) to analyze and develop responses to technology needs submitted by five major U.S. Department of Energy (DOE) sites with radioactive tank waste problems, and the initial results of the analysis. The sites are the Hanford Site, Idaho National Engineering and Environmental Laboratory (INEEL), Oak Ridge Reservation (ORR), Savannah River Site (SRS), and West Valley Demonstration Project (WVDP). During the past year, the TFA established a link with DOE's Fernald site to exchange, on a continuing basis, mutually beneficial technical information and assistance.

RW Allen

2000-04-11T23:59:59.000Z

84

Tanks focus area site needs assessment FY 1997  

SciTech Connect

The Tanks Focus Area`s (TFA`s) mission is to manage an integrated technology development program that results in the application of technology to safely and efficiently accomplish tank waste remediation across the U.S. Department of Energy (DOE) complex. The TFA uses a systematic process for developing its annual program that draws from the tanks technology development needs expressed by four DOE tank waste sites - Hanford Site, Idaho National Engineering and Environmental Laboratory (INEEL), Oak Ridge Reservation (ORR), and Savannah River Site (SRS). The process is iterative and involves six steps: (1) Site needs identification and documentation, (2) Site communication of priority needs, (3) Technical response development, (4) Review technical responses, (5) Develop program planning documents, and (6) Review planning documents. This document describes the outcomes of the first two steps: site needs identification and documentation, and site communication of priority needs. It also describes the initial phases of the third and fourth steps: technical response development and review technical responses. Each site`s Site Technology Coordination Group (STCG) was responsible for developing and delivering priority tank waste needs. This was accomplished using a standardized needs template developed by the National STCG. The standard template helped improve the needs submission process this year. The TFA received the site needs during December 1996 and January 1997.

NONE

1997-04-01T23:59:59.000Z

85

Tanks Focus Area FY 1996 Site Needs Assessment  

SciTech Connect

The Tanks Focus Area`s (TFA`s) mission is to manage an integrated technology development program that results in the application of technology to safely and efficiently accomplish tank waste remediation across the US Department of Energy (DOE) complex. The TFA uses a systematic process for developing its annual program that draws from the tanks technology development needs expressed by four DOE tank waste sites--Hanford, Idaho, Oak Ridge, and Savannah River Sites. The process is iterative and involves four steps: (1) identify and validate tank technology needs at these four sites, (2) define a technical program that responds to these needs, (3) select specific tasks and schedules that accomplish program objectives, and (4) develop integrated teams to carry out selected tasks. This document describes the first of these four steps: identification of sites` tank technology needs. This step concentrates solely on needs identification, collection, and validation. Funding requirements and specific scope of responsive technical activities are not considered until later steps in program definition. This year, the collection and validation of site needs were accomplished through written input from the Site Technology Coordination Groups (STCGs). The TFA recognizes the importance of a continuing solid partnership with the sites through the STCG and DOE as well as contractor users and, therefore, ensured site participation and close coordination throughout the process.

NONE

1996-03-01T23:59:59.000Z

86

Tanks Focus Area site needs assessment FY 1998  

SciTech Connect

This report documents the process used by the Tanks Focus Area (TFA) to analyze and develop responses to technology needs submitted by four major US Department of Energy (DOE) sites with radioactive tank waste problems, and the initial results of the analysis. The sites are the Hanford Site, Idaho National Engineering and Environmental Laboratory (INEEL), Oak Ridge Reservation (ORR), and Savannah River Site (SRS). This document describes the TFA`s process of collecting site needs, analyzing them, and creating technical responses to the sites. It also summarizes the information contained within the TFA needs database, portraying information provided by four major DOE sites with tank waste problems. The overall TFA program objective is to deliver a tank technology program that reduces the current cost, and the operational and safety risks of tank remediation. The TFA`s continues to enjoy close, cooperative relationships with each site. During the past year, the TFA has fostered exchanges of technical information between sites. These exchanges have proven to be healthy for all concerned. The TFA recognizes that site technology needs often change, and the TFA must be prepared not only to amend its program in response, but to help the sites arrive at the best technical approach to solve revised site needs.

NONE

1998-03-01T23:59:59.000Z

87

Reliability and Markets Program Information | Department of Energy  

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

Reliability and Markets Program Information Reliability and Markets Program Information Summary of the Tranmission Reliability program's Reliability and Markets activity area. The...

88

Soil trampling in an Antarctic Specially Protected Area: tools to assess levels of human impact  

E-Print Network (OSTI)

Soil trampling in an Antarctic Specially Protected Area: tools to assess levels of human impact P. TEJEDO1 , A. JUSTEL2 , J. BENAYAS3 *, E. RICO3 , P. CONVEY4 and A. QUESADA5 1 School of Biology, IE recognized within the Antarctic Treaty by designating protected areas. Since 1991 three classes of protected

Justel Eusebio, Ana

89

Assessment of Rooftop Area in Austin Energy's Service Territory Suitable for PV Development  

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

As part of the Solar America Cities program, Austin Energy proposed to perform an assessment of the rooftop area available for PV development within its service area. Austin Energy contracted with Clean Energy Associates (CEA) to perform the analysis. This report summarizes the project objectives, data sources and methodological approach employed, and results.

90

A Natural Heritage Assessment and Inventory of State Wildlife Area Wetlands  

E-Print Network (OSTI)

A Natural Heritage Assessment and Inventory of State Wildlife Area Wetlands 1998-99 Pilot Study) was contracted to conduct a ilot study of wetlands and riparian areas on several Colorado Division of Wildlife, and will be corporated into a wetlands database and the Natural Diversity Information System n HP e s secured

91

Assessment of the broadleaf crops leaf area index product from the Terra MODIS instrument  

E-Print Network (OSTI)

the cultivated area (52%). The major con- centrations of this biome class are in Asia (39%), North America (22Assessment of the broadleaf crops leaf area index product from the Terra MODIS instrument Bin Tan a) and fraction vegetation absorbed photosynthetically active radiation (FPAR) products for broadleaf crops

Myneni, Ranga B.

92

5.2 FY14 Focus Area Self-Assessments 0913  

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

AFRD Focus Area Self-Assessments Selection of 2014 Focus Areas AFRD identified two Focus Areas that will be evaluated as part of the ES&H Self- Assessment process for Fiscal Year 2014 (FY14): Focus Area 1. Compressed Gas and Cryogen Safety This Focus Area was recommended by the AFRD ES&H Operations Committee and approved by the Division Director because of potential impact on safety of personnel and to evaluate compliance with requirements. Compressed gas and/or cryogens are used in most AFRD technical areas. The safe handling of compressed gas and cryogens is most closely associated with the 4th ISM Core Function, performing work within controls. A search of the Lessons Learned/Best Practices Database reveals three LBNL Lessons. Two of them are related to a 2013 injury at the ALS from losing control while handling

93

An Example of an INPRO Assessment of an INS in the Area of Waste Management  

SciTech Connect

Following a resolution of the General Conference of the IAEA in the year 2000 the International Project on Innovative Nuclear Reactors and Fuel Cycles, referred to as INPRO, was initiated. INPRO has defined requirements organized in a hierarchy of Basic Principles, User Requirements and Criteria (consisting of an indicator and an acceptance limit) to be met by innovative nuclear reactor systems (INS) in six areas, namely: economics, safety, waste management, environment, proliferation resistance, and infrastructure. If an INS meets all requirements in all areas it represents a sustainable system for the supply of energy, capable of making a significant contribution to meeting the energy needs of the 21. century. Draft manuals have been developed, for each INPRO area, to provide guidance for performing an assessment of whether an INS meets the INPRO requirements in a given area. The manuals set out the information that needs to be assembled to perform an assessment and provide guidance on selecting the acceptance limits and, for a given INS, for determining the value of the indicators for comparison with the associated acceptance limits. Each manual also includes an example of a specific assessment to illustrate the guidance. This paper discusses the example presented in the manual for performing an INPRO assessment in the area of waste management. The example, chosen solely for the purpose of illustrating the INPRO methodology, describes an assessment of an INS based on the DUPIC fuel cycle. It is assumed that uranium is mined, milled, converted, enriched, and fabricated into LWR fuel in Canada. The LWR fuel is assumed to be leased to a utility in the USA. The spent LWR fuel is assumed to be returned to Canada where it is processed into CANDU DUPIC fuel, which is then burned in CANDU reactors. The assessment steps and the results are presented in detail in the paper. The example illustrates an assessment performed for an INS at an early stage of development. (authors)

Allan, C.; Busurin, Y.; Depisch, F. [International Atomic Energy Agency, P.O. Box 100, Wagramer Strasse 5, A-1400 Vienna (Austria)

2006-07-01T23:59:59.000Z

94

Environmental Assessment for the Replacement Source of Steam for A Area at the Savannah River Site  

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

8 8 OCTOBER 2006 U. S. DEPARTMENT OF ENERGY SAVANNAH RIVER OPERATIONS OFFICE SAVANNAH RIVER SITE ENVIRONMENTAL ASSESSMENT FOR THE REPLACEMENT SOURCE OF STEAM FOR A AREA AT THE SAVANNAH RIVER SITE DOE/EA-1568 ENVIRONMENTAL ASSESSMENT FOR THE REPLACEMENT SOURCE OF STEAM FOR A AREA AT THE SAVANNAH RIVER SITE OCTOBER 2006 U. S. DEPARTMENT OF ENERGY SAVANNAH RIVER OPERATIONS OFFICE SAVANNAH RIVER SITE ii TABLE OF CONTENTS Page 1.0 INTRODUCTION ...............................................................................................1 1.1 Background ..............................................................................................1 1.2 Purpose and Need for Proposed Action.....................................................1 2.0 PROPOSED ACTION AND ALTERNATIVES

95

Dynamic reliability and risk assessment of the accident localization system of the Ignalina NPP RBMK-1500 reactor  

Science Journals Connector (OSTI)

The paper presents reliability and risk analysis of the RBMK-1500 reactor accident localization system (ALS) (confinement), which prevents radioactive releases to the environment. Reliability of the system was estimated and compared by two methods: the conventional fault tree method and an innovative dynamic reliability model, based on stochastic differential equations. Frequency of radioactive release through ALS was also estimated. The results of the study indicate that conventional fault tree modeling techniques in this case apply high degree of conservatism in the system reliability estimates. One of the purposes of the ALS reliability study was to demonstrate advantages of the dynamic reliability analysis against the conventional fault/event tree methods. The Markovian framework to deal with dynamic aspects of system behavior is presented. Although not analyzed in detail, the framework is also capable of accounting for non-constant component failure rates. Computational methods are proposed to solve stochastic differential equations, including analytical solution, which is possible only for relatively small and simple systems. Other numerical methods, like Monte Carlo and numerical schemes of differential equations are analyzed and compared. The study is finalized with concluding remarks regarding both the studied system reliability and computational methods used.

V. Kopustinskas; J. Augutis; S. Rimkevi?ius

2005-01-01T23:59:59.000Z

96

Puget Sound Area Electric Reliability Plan. Appendix D, Conservation, Load Management and Fuel Switching Analysis : Draft Environmental Impact Statement.  

SciTech Connect

Various conservation, load management, and fuel switching programs were considered as ways to reduce or shift system peak load. These programs operate at the end-use level, such as residential water heat. Figure D-1a shows what electricity consumption for water heat looks like on normal and extreme peak days. Load management programs, such as water heat control, are designed to reduce electricity consumption at the time of system peak. On the coldest day in average winter, system load peaks near 8:00 a.m. In a winter with extremely cold weather, electricity consumption increases fr all hours, and the system peak shifts to later in the morning. System load shapes in the Puget Sound area are shown in Figure D-1b for a normal winter peak day (February 2, 1988) and extreme peak day (February 3, 1989). Peak savings from any program are calculated to be the reduction in loads on the entire system at the hour of system peak. Peak savings for all programs are measured at 8:00 a.m. on a normal peak day and 9:00 a.m. on an extreme peak day. On extremely cold day, some water heat load shifts to much later in the morning, with less load available for shedding at the time of system peak. Models of hourly end-use consumption were constructed to simulate the impact of conservation, land management, and fuel switching programs on electricity consumption. Javelin, a time-series simulating package for personal computers, was chosen for the hourly analysis. Both a base case and a program case were simulated. 15 figs., 7 tabs.

United States. Bonneville Power Administration.

1991-09-01T23:59:59.000Z

97

Gas-insulated substations: Reliability Research Program: Volume 1, Operational characteristics and recommendations: Final report  

SciTech Connect

This volume contains a comparative evaluation of existing transmission system reliability programs (SYREL, GATOR, RECS) and relevant mathematical methods for transmission reliability analysis. Several new and enhanced methods in the areas of network analysis, contingency selection, remedial action, and reliability index calculation, developed and tested during the project, are described. Recommendations for methods to be used in a production grade transmission reliability assessment program are presented. 49 figs., 11 tabs.

Boggs, S.A.; Chu, F.Y.; Collod, M.; Ford, G.L.; Fujimoto, N.; Harvey, S.; Stuckless, H.A.

1988-01-01T23:59:59.000Z

98

A fuzzy-based reliability approach to evaluate basic events of fault tree analysis for nuclear power plant probabilistic safety assessment  

Science Journals Connector (OSTI)

Abstract Fault tree analysis has been widely utilized as a tool for nuclear power plant probabilistic safety assessment. This analysis can be completed only if all basic events of the system fault tree have their quantitative failure rates or failure probabilities. However, it is difficult to obtain those failure data due to insufficient data, environment changing or new components. This study proposes a fuzzy-based reliability approach to evaluate basic events of system fault trees whose failure precise probability distributions of their lifetime to failures are not available. It applies the concept of failure possibilities to qualitatively evaluate basic events and the concept of fuzzy sets to quantitatively represent the corresponding failure possibilities. To demonstrate the feasibility and the effectiveness of the proposed approach, the actual basic event failure probabilities collected from the operational experiences of the David–Besse design of the Babcock and Wilcox reactor protection system fault tree are used to benchmark the failure probabilities generated by the proposed approach. The results confirm that the proposed fuzzy-based reliability approach arises as a suitable alternative for the conventional probabilistic reliability approach when basic events do not have the corresponding quantitative historical failure data for determining their reliability characteristics. Hence, it overcomes the limitation of the conventional fault tree analysis for nuclear power plant probabilistic safety assessment.

Julwan Hendry Purba

2014-01-01T23:59:59.000Z

99

University Library Assessment of Signature Research Areas Page 1 of 6  

E-Print Network (OSTI)

University Library Assessment of Signature Research Areas Page 1 of 6 7. Water Security for Water Security Author: Jill Crawley-Low Assistant Dean (Services to Libraries) 1. Proposal Identification Full name of new centre: Global Institute for Water Security 2. Introduction Libraries

Saskatchewan, University of

100

Integrated assessment of quality of supply in future electricity networks   

E-Print Network (OSTI)

Although power system reliability analysis is a mature research area, there is a renewed interest in updating available network models and formulating improved reliability assessment procedures. The main driver of this ...

Hernando Gil, Ignacio

2014-11-27T23:59:59.000Z

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

RCRA Assessment Plan for Single-Shell Tank Waste Management Area A-AX at the Hanford Site  

SciTech Connect

This document describes a groundwater assessment plan for the single-shell tank systems in Waste Management Area A-AX at the Hanford Site.

Narbutovskih, Susan M.; Chou, Charissa J.

2006-03-03T23:59:59.000Z

102

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL 21,NO 3, AUGUST 2006 Reliability and Cost trade-off in Multi-Area  

E-Print Network (OSTI)

distribution is developed in this paper. After global decomposition, an equation for reliability is derived1 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL 21,NO 3, AUGUST 2006 Reliability and Cost trade an optimization procedure for generation expansion and placement considering generation reliability in multi

103

Tracking the Reliability of the U.S. Electric Power System: An Assessment of Publicly Available Information Reported to State Public Utility Commissions  

E-Print Network (OSTI)

Use Guide for Power Distribution Reliability Indices. ISBN#Engineers (IEEE) Distribution Reliability Working Group,for Electric Power Distribution Reliability Indices, which

LaCommare, Kristina H.

2008-01-01T23:59:59.000Z

104

IEEE TRANSACTIONS ON SMART GRID, VOL. 5, NO. 4, JULY 2014 1677 Reliability Assessment of Smart Grids Considering  

E-Print Network (OSTI)

connectivity in the cyber network and minimize the load curtail- ment in the power network. A high and protection., power system reliability. NOMENCLATURE Number of data sources. Number of cyber elements in the system. Number of loads in the power network. Number of transmission lines in the power network. Number

Fu, Yong

105

A preliminary energy and environmental assessment of a micro wind turbine prototype in natural protected areas  

Science Journals Connector (OSTI)

Abstract This paper presents a preliminary energy and environmental analysis of a vertical-axis micro wind turbine with a nominal electric power of 3.7 kW. This prototype is called AM300. The main aim of the paper is to assess the amount of electric energy production of the AM300 and its feasible use in low wind speed areas. Furthermore, analyzing its low environmental impact, a potential installation in a natural protected area was considered. The turbine power curve was estimated by anemometric measurements. Furthermore, foreseeable prototype hybridization with PV array was analyzed. The environmental performance was assessed evaluating the soil, hydro geological, biodiversity and noise impacts. Finally, an analysis of the CO2 emissions avoided is reported. The obtained results show good sustainability perspectives.

Livio de Santoli; Angelo Albo; Davide Astiaso Garcia; Daniele Bruschi; Fabrizio Cumo

2014-01-01T23:59:59.000Z

106

Integrity assessment plan for PNL 300 area radioactive hazardous waste tank system. Final report  

SciTech Connect

The Pacific Northwest Laboratory (PNL), operated by Battelle Memorial Institute under contract to the U.S. Department of Energy, operates tank systems for the U.S. Department of Energy, Richland Operations Office (DOE-RL), that contain dangerous waste constituents as defined by Washington State Department of Ecology (WDOE) Dangerous Waste Regulations, Washington Administrative Code (WAC) 173-303-040(18). Chapter 173-303-640(2) of the WAC requires the performance of integrity assessments for each existing tank system that treats or stores dangerous waste, except those operating under interim status with compliant secondary containment. This Integrity Assessment Plan (IAP) identifies all tasks that will be performed during the integrity assessment of the PNL-operated Radioactive Liquid Waste Systems (RLWS) associated with the 324 and 325 Buildings located in the 300 Area of the Hanford Site. It describes the inspections, tests, and analyses required to assess the integrity of the PNL RLWS (tanks, ancillary equipment, and secondary containment) and provides sufficient information for adequate budgeting and control of the assessment program. It also provides necessary information to permit the Independent, Qualified, Registered Professional Engineer (IQRPE) to approve the integrity assessment program.

NONE

1996-03-01T23:59:59.000Z

107

What Can Meta-Analyses Tell Us About the Reliability of Life Cycle Assessment for Decision Support?  

SciTech Connect

The body of life cycle assessment (LCA) literature is vast and has grown over the last decade at a dauntingly rapid rate. Many LCAs have been published on the same or very similar technologies or products, in some cases leading to hundreds of publications. One result is the impression among decision makers that LCAs are inconclusive, owing to perceived and real variability in published estimates of life cycle impacts. Despite the extensive available literature and policy need formore conclusive assessments, only modest attempts have been made to synthesize previous research. A significant challenge to doing so are differences in characteristics of the considered technologies and inconsistencies in methodological choices (e.g., system boundaries, coproduct allocation, and impact assessment methods) among the studies that hamper easy comparisons and related decision support. An emerging trend is meta-analysis of a set of results from LCAs, which has the potential to clarify the impacts of a particular technology, process, product, or material and produce more robust and policy-relevant results. Meta-analysis in this context is defined here as an analysis of a set of published LCA results to estimate a single or multiple impacts for a single technology or a technology category, either in a statistical sense (e.g., following the practice in the biomedical sciences) or by quantitative adjustment of the underlying studies to make them more methodologically consistent. One example of the latter approach was published in Science by Farrell and colleagues (2006) clarifying the net energy and greenhouse gas (GHG) emissions of ethanol, in which adjustments included the addition of coproduct credit, the addition and subtraction of processes within the system boundary, and a reconciliation of differences in the definition of net energy metrics. Such adjustments therefore provide an even playing field on which all studies can be considered and at the same time specify the conditions of the playing field itself. Understanding the conditions under which a meta-analysis was conducted is important for proper interpretation of both the magnitude and variability in results. This special supplemental issue of the Journal of Industrial Ecology includes 12 high-quality metaanalyses and critical reviews of LCAs that advance understanding of the life cycle environmental impacts of different technologies, processes, products, and materials. Also published are three contributions on methodology and related discussions of the role of meta-analysis in LCA. The goal of this special supplemental issue is to contribute to the state of the science in LCA beyond the core practice of producing independent studies on specific products or technologies by highlighting the ability of meta-analysis of LCAs to advance understanding in areas of extensive existing literature. The inspiration for the issue came from a series of meta-analyses of life cycle GHG emissions from electricity generation technologies based on research from the LCA Harmonization Project of the National Renewable Energy Laboratory (NREL), a laboratory of the U.S. Department of Energy, which also provided financial support for this special supplemental issue. (See the editorial from this special supplemental issue [Lifset 2012], which introduces this supplemental issue and discusses the origins, funding, peer review, and other aspects.) The first article on reporting considerations for meta-analyses/critical reviews for LCA is from Heath and Mann (2012), who describe the methods used and experience gained in NREL's LCA Harmonization Project, which produced six of the studies in this special supplemental issue. Their harmonization approach adapts key features of systematic review to identify and screen published LCAs followed by a meta-analytical procedure to adjust published estimates to ones based on a consistent set of methods and assumptions to allow interstudy comparisons and conclusions to be made. In a second study on methods, Zumsteg and colleagues (2012) propose a checklist for a sta

Brandao, M.; Heath, G.; Cooper, J.

2012-04-01T23:59:59.000Z

108

Efficiency assessment of using satellite data for crop area estimation in Ukraine  

Science Journals Connector (OSTI)

Abstract The knowledge of the crop area is a key element for the estimation of the total crop production of a country and, therefore, the management of agricultural commodities markets. Satellite data and derived products can be effectively used for stratification purposes and a-posteriori correction of area estimates from ground observations. This paper presents the main results and conclusions of the study conducted in 2010 to explore feasibility and efficiency of crop area estimation in Ukraine assisted by optical satellite remote sensing images. The study was carried out on three oblasts in Ukraine with a total area of 78,500 km2. The efficiency of using images acquired by several satellite sensors (MODIS, Landsat-5/TM, AWiFS, LISS-III, and RapidEye) combined with a field survey on a stratified sample of square segments for crop area estimation in Ukraine is assessed. The main criteria used for efficiency analysis are as follows: (i) relative efficiency that shows how much time the error of area estimates can be reduced with satellite images, and (ii) cost-efficiency that shows how much time the costs of ground surveys for crop area estimation can be reduced with satellite images. These criteria are applied to each satellite image type separately, i.e., no integration of images acquired by different sensors is made, to select the optimal dataset. The study found that only MODIS and Landsat-5/TM reached cost-efficiency thresholds while AWiFS, LISS-III, and RapidEye images, due to its high price, were not cost-efficient for crop area estimation in Ukraine at oblast level.

Francisco Javier Gallego; Nataliia Kussul; Sergii Skakun; Oleksii Kravchenko; Andrii Shelestov; Olga Kussul

2014-01-01T23:59:59.000Z

109

Geothermal-resource assessment of the Steamboat-Routt Hot Springs area, Colorado. Resources Series 22  

SciTech Connect

An assessment of the Steamboat Springs region in northwest Colorado was initiated and carried out in 1980 and 1981. The goal of this program was to delineate the geological features controlling the occurrence of the thermal waters (temperatures in excess of 68/sup 0/F (20/sup 0/C)) in this area at Steamboat Springs and 8 miles (12.8 km) north at Routt Hot Springs. Thermal waters from Heart Spring, the only developed thermal water source in the study area, are used in the municipal swimming pool in Steamboat Springs. The assessment program was a fully integrated program consisting of: dipole-dipole, Audio-magnetotelluric, telluric, self potential and gravity geophysical surveys, soil mercury and soil helium geochemical surveys; shallow temperature measurements; and prepartion of geological maps. The investigation showed that all the thermal springs appear to be fault controlled. Based on the chemical composition of the thermal waters it appears that Heart Spring in Steamboat Springs is hydrologically related to the Routt Hot Springs. This relationship was further confirmed when it was reported that thermal waters were encountered during the construction of the new high school in Strawberry Park on the north side of Steamboat Springs. In addition, residents stated that Strawberry Park appears to be warmer than the surrounding country side. Geological mapping has determined that a major fault extends from the Routt Hot Springs area into Strawberry Park.

Pearl, R.H.; Zacharakis, T.G.; Ringrose, C.D.

1983-01-01T23:59:59.000Z

110

Reliability evaluation for large-scale bulk transmission systems: Volume 1, Comparative evaluation, method development, and recommendations: Final report  

SciTech Connect

This volume (1 of 2) contains a comparative evaluation of existing transmission system reliability programs (SYREL, GATOR, RECS) and relevant mathematical methods for transmission reliability analysis. Several new and enhanced methods in the areas of network analysis, contingency selection, remedial action, and reliability index calculation, developed and tested during the project, are described. Recommendations for methods to be used in a production grade transmission reliability assessment program are presented. 69 figs., 41 tabs.

Lam, B.P.; Lawrence, D.J.; Reppen, N.D.; Ringlee, R.J.

1988-01-01T23:59:59.000Z

111

AREA  

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

AREA AREA FAQ # Question Response 316 vs DCAA FAQ 1 An inquiry from CH about an SBIR recipient asking if a DCAA audit is sufficient to comply with the regulation or if they need to add this to their audit they have performed yearly by a public accounting firm. 316 audits are essentially A-133 audits for for-profit entities. They DO NOT replace DCAA or other audits requested by DOE to look at indirect rates or incurred costs or closeouts. DCAA would never agree to perform A-133 or our 316 audits. They don't do A-133 audits for DOD awardees. The purpose of the audits are different, look at different things and in the few instances of overlap, from different perspectives. 316

112

PV Analyst: Coupling ArcGIS with TRNSYS to assess distributed photovoltaic potential in urban areas  

Science Journals Connector (OSTI)

This study presents a means to extend the functionality of Geographic Information Systems (GIS) in assessing distributed photovoltaic (PV) potential in urban areas, via the new ArcGIS extension: PV Analyst. A methodology is proposed for coupling ArcGIS with TRNSYS that enables the PV Analyst extension to use the capabilities of 4 and 5-parameter PV array performance models and the irradiance components in TRNSYS for solar energy simulations in geospatial contexts. Because PV Analyst is embedded within the ArcMap environment, part of ArcGIS software package, the strong capabilities of ArcGIS and other ArcGIS extensions such as 3D Analyst, Spatial Analyst and Tracking Analyst can be fully utilized with PV Analyst’s functionalities. This paper describes the concept and details of the extension development, as well as its application to the Pollock Commons area at the Pennsylvania State University.

Yosoon Choi; Jeffrey Rayl; Charith Tammineedi; Jeffrey R.S. Brownson

2011-01-01T23:59:59.000Z

113

Assessing environmental risk of the retired filter bed area, Battelle West Jefferson  

SciTech Connect

Initial investigations conducted by the U.S. Department of Energy, Chicago Operations Office, and by Argonne National Laboratory used seismic refraction profiling, electrical resistivity depth sounding, conductivity profiling, magnetic gradiometry, and ground-penetrating radar to study environmental geophysics in the area of the Battelle West Jefferson site`s radiologically contaminated retired filter beds. The investigators used a combination of nonintrusive technologies and innovative drilling techniques to assess environmental risk at the filter beds and to improve understanding of the geology of the Big Darby Creek floodplain. The geophysical investigation, which showed that the preferred groundwater pathway is associated with a laterally extensive deposit of silty sand to sand that is less than 12 ft deep in the floodplain area, also guided the location of cone penetrometer test sites and piezometer installation. Cone penetrometer testing was useful for comparing continuous logging data with surface geophysical data in establishing correlations among unconsolidated materials.

Miller, S.F.; Thompson, M.D.; Glennon, M.A. [and others

1997-04-01T23:59:59.000Z

114

Environmental Assessment for Proposed Corrective Measures at Material Disposal Area H within Technical Area 54 at Los Alamos National Laboratory, Los Alamos, New Mexico  

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

64 64 Environmental Assessment for Proposed Corrective Measures at Material Disposal Area H within Technical Area 54 at Los Alamos National Laboratory, Los Alamos, New Mexico June 14, 2004 Department of Energy National Nuclear Security Administration Los Alamos Site Office EA for the Proposed Corrective Measures at MDA H within TA-54 at LANL DOE LASO June 14, 2004 iii Contents Acronyms and Terms..................................................................................................................................v Executive Summary ..................................................................................................................................vii 1.0 Purpose and Need ..............................................................................................................................1

115

A Multi-State Model for the Reliability Assessment of a Distributed Generation System via Universal Generating Function  

E-Print Network (OSTI)

renewable technology (e.g. wind or solar, etc.) whose behavior is described by a binary state, working assessment, multi-state modeling, universal generating function #12;2 Notations Solar irradiance Total number of discretized solar irradiance states Discretized solar irradiance at state i Random variable representing

Boyer, Edmond

116

Result Summary for the Area 5 Radioactive Waste Management Site Performance Assessment Model Version 4.113  

SciTech Connect

Preliminary results for Version 4.113 of the Nevada National Security Site Area 5 Radioactive Waste Management Site performance assessment model are summarized. Version 4.113 includes the Fiscal Year 2011 inventory estimate.

Shott, G. J.

2012-04-15T23:59:59.000Z

117

Hawaii electric system reliability.  

SciTech Connect

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

118

E AREA LOW LEVEL WASTE FACILITY DOE 435.1 PERFORMANCE ASSESSMENT  

SciTech Connect

This Performance Assessment for the Savannah River Site E-Area Low-Level Waste Facility was prepared to meet requirements of Chapter IV of the Department of Energy Order 435.1-1. The Order specifies that a Performance Assessment should provide reasonable assurance that a low-level waste disposal facility will comply with the performance objectives of the Order. The Order also requires assessments of impacts to water resources and to hypothetical inadvertent intruders for purposes of establishing limits on radionuclides that may be disposed near-surface. According to the Order, calculations of potential doses and releases from the facility should address a 1,000-year period after facility closure. The point of compliance for the performance measures relevant to the all pathways and air pathway performance objective, as well as to the impact on water resources assessment requirement, must correspond to the point of highest projected dose or concentration beyond a 100-m buffer zone surrounding the disposed waste following the assumed end of active institutional controls 100 years after facility closure. During the operational and institutional control periods, the point of compliance for the all pathways and air pathway performance measures is the SRS boundary. However, for the water resources impact assessment, the point of compliance remains the point of highest projected dose or concentration beyond a 100-m buffer zone surrounding the disposed waste during the operational and institutional control periods. For performance measures relevant to radon and inadvertent intruders, the points of compliance are the disposal facility surface for all time periods and the disposal facility after the assumed loss of active institutional controls 100 years after facility closure, respectively. The E-Area Low-Level Waste Facility is located in the central region of the SRS known as the General Separations Area. It is an elbow-shaped, cleared area, which curves to the northwest, situated immediately north of the Mixed Waste Management Facility. The E-Area Low-Level Waste Facility is comprised of 200 acres for waste disposal and a surrounding buffer zone that extends out to the 100-m point of compliance. Disposal units within the footprint of the low-level waste facilities include the Slit Trenches, Engineered Trenches, Component-in-Grout Trenches, the Low-Activity Waste Vault, the Intermediate-Level Vault, and the Naval Reactor Component Disposal Area. Radiological waste disposal operations at the E-Area Low-Level Waste Facility began in 1994. E-Area Low-Level Waste Facility closure will be conducted in three phases: operational closure, interim closure, and final closure. Operational closure will be conducted during the 25-year operation period (30-year period for Slit and Engineered Trenches) as disposal units are filled; interim closure measures will be taken for some units. Interim closure will take place following the end of operations and will consist of an area-wide runoff cover along with additional grading over the trench units. Final closure of all disposal units in the E-Area Low-Level Waste Facility will take place at the end of the 100-year institutional control period and will consist of the installation of an integrated closure system designed to minimize moisture contact with the waste and to serve as a deterrent to intruders. Radiological dose to human receptors is analyzed in this PA in the all-pathways analysis, the inadvertent intruder analysis and the air pathway analysis, and the results are compared to the relevant performance measures. For the all-pathways analysis, the performance measure of relevance is a 25-mrem/yr EDE to representative members of the public, excluding dose from radon and its progeny in air. For the inadvertent intruder, the applicable performance measures are 100-mrem/yr EDE and 500 mrem/yr EDE for chronic and exposure scenarios, respectively. The relevant performance measure for the air pathway is 10-mrem/yr EDE via the air pathway, excluding dose from radon and its progeny in air. Protecti

Wilhite, E

2008-03-31T23:59:59.000Z

119

Assessment of water resources in lead-zinc mined areas in Cherokee County, Kansas, and adjacent areas  

SciTech Connect

A study was conducted to evaluate water-resources problems related to abandoned lead and zinc mines in Cherokee County, Kansas, and adjacent areas in Missouri and Oklahoma. Past mining activities have caused changes in the hydrogeology of the area. Lead and zinc mining has caused discontinuities and perforations in the confining shale west of the Pennsylvanian-Mississippian geologic contact (referred to as the western area), which have created artificial ground-water recharge and discharge areas. Recharge to the shallow aquifer (rocks of Mississippian age) through collapses, shafts, and drill holes in the shale has caused the formation of a groundwater ''mound'' in the vicinity of the Picher Field in Kansas and Oklahoma. Discharge of mine-contaminated ground water to Tar Creek occurs in Oklahoma from drill holes and shafts where the potentiometric surface of the shallow aquifer is above the land surface. Mining of ore in the shallow aquifer has resulted in extensive fracturing and removal of material, which has created highly transmissive zones and voids and increased ground-water storage properties of the aquifer. In the area east of the Pennsylvanian-Mississippian geologic contact (referred to as the eastern area), fractured rock and tailings on the land surface increased the amount of water available for infiltration to the shallow aquifer; in the western area, tailings on the impermeable shale created artificial, perched aquifer systems that slowly drain to surface streams. 45 refs., 23 figs., 21 tabs.

Spruill, T.B.

1984-01-01T23:59:59.000Z

120

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

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

Savannah River Site H-Area Tank Farm Performance Assessment Scoping Meeting  

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

H-Area Tank Farm Performance Assessment Scoping Meeting April 20-22, 2010 230 Green Blvd. Aiken Design Center Building Village at Woodside Aiken, SC DRAFT MEETING NOTES Tuesday, April 20, 2010 (8:30 a.m. - 5:00 p.m.) Welcome and introductions made by Tom Gutmann, DOE-SR and Ginger Dickert, SRR. The meeting proceeded with discussion of the topics as identified in the Agenda. Review of General Information Package Consider development of functional requirements/key assumptions tracking process. Evaluate use of Hanford tool for tracking assumptions. Evaluate TRS IAEA-364 for potential updates to some factors (recently published). NRC will provide to DOE and SRR. Consider Features Events Processes (FEPs) style analysis to provide additional

122

DOEEA-1178 Assessment 300 Area Steam Plant Replacement, Hanford Site, Richland, Washington  

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

8 8 Assessment 300 Area Steam Plant Replacement, Hanford Site, Richland, Washington U.S. Department of Energy Washington, D.C. March 1997 , DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes any legal liabili- ty or mponsibility for the accuracy, completeness, or usefulness of any information, appa- ratus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or s e m ' c e by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or

123

Assessing the integrity of local area network materials accountability systems against insider threats  

SciTech Connect

DOE facilities rely increasingly on computerized systems to manage nuclear materials accountability data and to protect against diversion of nuclear materials or other malevolent acts (e.g., hoax due to falsified data) by insider threats. Aspects of modern computerized material accountability (MA) systems including powerful personal computers and applications on networks, mixed security environments, and more users with increased knowledge, skills and abilities help heighten the concern about insider threats to the integrity of the system. In this paper, we describe a methodology for assessing MA applications to help decision makers identify ways of and compare options for preventing or mitigating possible additional risks from the insider threat. We illustrate insights from applying the methodology to local area network materials accountability systems.

Jones, E.; Sicherman, A.

1996-07-01T23:59:59.000Z

124

GEOTHERMAL EXPLORATION ASSESSMENT AND INTERPRETATION, KLAMATH BASIN, OREGON-SWAN LAKE AND KLAMATH HILLS AREA  

E-Print Network (OSTI)

survey of the Swan Lake Valley area, Oregon: Geonornicssurvey of the Swan Lake Valley Area, Oregon: GeonomicsKLAMATH BASIN, OREGON SWAN LAKE AND KLAMATH HILLS AREA M.

Stark, M.

2011-01-01T23:59:59.000Z

125

GEOTHERMAL EXPLORATION ASSESSMENT AND INTERPRETATION, KLAMATH BASIN, OREGON-SWAN LAKE AND KLAMATH HILLS AREA  

E-Print Network (OSTI)

KLAMATH BASIN, OREGON SWAN LAKE AND KLAMATH HILLS AREA M.survey of the Swan Lake Valley area, Oregon: Geonornicssurvey of the Swan Lake Valley Area, Oregon: Geonomics

Stark, M.

2011-01-01T23:59:59.000Z

126

Assessment of water resources in lead-zinc mined areas in Cherokee County, Kansas, and adjacent areas  

SciTech Connect

A study was conducted to evaluate water resources problems related to abandoned lead and zinc mines in Cherokee County, Kansas, and adjacent areas in Missouri and Oklahoma. Past mining activities have caused changes in the geohydrology of the area. Discharge of mine-contaminated groundwater to Tar Creek occurs in Oklahoma from drill holes and shafts where the potentiometric surface of the shallow aquifer is above the land surface. Pumping of the deep aquifer has resulted in a potential for downward movement of water from the shallow aquifer. Water from mines in the eastern area contained dissolved solids concentrations of < 500 mg/L a median pH of 3.9, sulfate concentrations that ranged between 98 and 290 mg/L, and median concentrations for zinc of 37,600 micrograms/L (ug/L) for lead of 240 ug/L, for cadmium of 180 ug/L, for iron of 70 ug/L, for manganese of 240 ug/L, and for silica of 15 mg/L. Water from mines in the western area contained dissolved solids concentrations of generally > 500 mg/L, a median pH of 6.8, sulfate concentrations that ranged between 170 and 2,150 mg/L, and median concentrations for zinc of 3,200 ug/L for lead of 0 ug/L. No conclusive evidence of lateral migration of water from the mines into domestic well water supplies in the shallow aquifer was found in the study area in Kansas. Effects of abandoned lead and zinc mines on tributaries of the Spring River in the eastern area are most severe in Short Creek. Drainage from tailings cause large concentrations of sulfate, zinc, and cadmium in Tar Creek in Kansas. Compared with four other major streams in the western area in Kansas, Tar Creek contained the largest low flow concentrations of sulfate (910 mg/L), zinc (5,800 ug/L), and cadmium (40 ug/L). 45 refs., 23 figs., 26 tabs.

Spruill, T.B.

1987-01-01T23:59:59.000Z

127

Software Quality Assurance Plan for GoldSim Models Supporting the Area 3 and Area 5 Radioactive Waste Management Sites Performance Assessment Program  

SciTech Connect

This Software Quality Assurance Plan (SQAP) applies to the development and maintenance of GoldSim models supporting the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) performance assessments (PAs) and composite analyses (CAs). Two PA models have been approved by the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO) as of November 2006 for the PA maintenance work undertaken by National Security Technologies, LLC (NSTec). NNSA/NSO asked NSTec to assume the custodianship of the models for future development and maintenance. The models were initially developed by Neptune and Company (N&C).

Gregory J. Shott, Vefa Yucel

2007-01-03T23:59:59.000Z

128

Nuclear weapon reliability evaluation methodology  

SciTech Connect

This document provides an overview of those activities that are normally performed by Sandia National Laboratories to provide nuclear weapon reliability evaluations for the Department of Energy. These reliability evaluations are first provided as a prediction of the attainable stockpile reliability of a proposed weapon design. Stockpile reliability assessments are provided for each weapon type as the weapon is fielded and are continuously updated throughout the weapon stockpile life. The reliability predictions and assessments depend heavily on data from both laboratory simulation and actual flight tests. An important part of the methodology are the opportunities for review that occur throughout the entire process that assure a consistent approach and appropriate use of the data for reliability evaluation purposes.

Wright, D.L. [Sandia National Labs., Albuquerque, NM (United States)

1993-06-01T23:59:59.000Z

129

GEOTHERMAL EXPLORATION ASSESSMENT AND INTERPRETATION, KLAMATH BASIN, OREGON-SWAN LAKE AND KLAMATH HILLS AREA  

E-Print Network (OSTI)

KLAMATH BASIN, OREGON SWAN LAKE AND KLAMATH HILLS AREA M.of the Swan Lake-Yonna Valley area, Klamath County, Oregon:

Stark, M.

2011-01-01T23:59:59.000Z

130

Maintenance Plan for the Performance Assessments and Composite Analyses for the Area 3 and Area 5 Radioactive Waste Management Sites at the NTS  

SciTech Connect

U.S. Department of Energy (DOE) Manual M 435.1-1 requires that performance assessments (PAs) and composite analyses (CAs) for low-level waste (LLW) disposal facilities be maintained by the field offices. This plan describes the activities performed to maintain the PA and the CA for the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) at the Nevada Test Site (NTS). This plan supersedes the Maintenance Plan for the Performance Assessments and Composite Analyses for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada Test Site (DOE/NV/11718--491-REV 1, dated September 2002). The plan is based on U.S. Department of Energy (DOE) Order 435.1 (DOE, 1999a), DOE Manual M 435.1-1 (DOE, 1999b), the DOE M 435.1-1 Implementation Guide DOE G 435.1-1 (DOE, 1999c), and the Maintenance Guide for PAs and CAs (DOE, 1999d). The plan includes a current update on PA/CA documentation, a revised schedule, and a section on Quality Assurance.

Vefa Yucel

2007-01-03T23:59:59.000Z

131

First Draft Performance Assessment for the H-Area Tank Farm at the Savannah River Site - Part 1  

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

SRR-CWDA-2010-00128 SRR-CWDA-2010-00128 Revision 0 PERFORMANCE ASSESSMENT for the H-AREA TANK FARM at the SAVANNAH RIVER SITE March 2011 Prepared by: Savannah River Remediation LLC Closure & Waste Disposal Authority Aiken, SC 29808 Prepared for U.S. Department of Energy Under Contract No. DE-AC09-09SR22505 Performance Assessment for the SRR-CWDA-2010-00128 H-Area Tank Farm at the Revision 0 Savannah River Site March 2011 Page ii of 864 REVISION SUMMARY REV. # DESCRIPTION DATE OF ISSUE 0a Initial issue to DOE-SR 09/17/2010

132

Baseline risk assessment of the perched water system at the INEL test reactor area  

SciTech Connect

A baseline health risk assessment (HRA) was prepared to evaluate potential risks to human health and the environment posed by the Perched Water System (PWS) at the Test Reactor Area (TRA). The PWS has been designated Operable Unit 2-12, one of the 13 operable units identified at TRA. During the period from 1962 to 1990, a total of 6770 million gal of water were discharged from the TRA to unlined surface ponds. Wastewater discharged to the surface ponds at TRA percolates downward through the surficial alluvium and the underlying basalt bedrock. A resulting shallow perched water zone has formed at the interface between the surficial sediments and the underlying basalt. Further downward movement of groundwater is again impeded by a low-permeability layer of silt, clay, and sand encountered at a depth of [approximately]150 ft. The deep perched water zone occurs on top of this low-permeability interbed. An evaluation was made as to whether potential risks for the PWS could justify implementing a remedial action. The risk evaluation consisted of two parts, the human health evaluation and the ecological evaluation.

Gordon, J.W.; Sinton, P.O. (Dames Moore, Denver, CO (United States)); Jensen, N. (DOE, Idaho Falls, ID (United States)); McCormick, S. (Idaho National Engineering Lab., Idaho Falls, ID (United States))

1993-01-01T23:59:59.000Z

133

Assessment of radiation exposure in the uranium mining and milling area of Mailuu Suu, Kyrgyzstan  

Science Journals Connector (OSTI)

The area of the town of Mailuu Suu, Kyrgyzstan, is polluted by radionuclides and heavy metals from tailing dumps and heaps resulting from the historic exploitation of uranium mines. In the frame of a European Commission-TACIS funded project, radiological assessment was performed for critical group members living in the city of Mailuu Suu, located downstream the tailings, or in the village of Kara Agach, partially located on a uranium mine waste dump. The actual external exposure is around 1.2 mSv a?1 at both locations and exposure from radon is around 3 mSv a?1 at Mailuu Suu and around 10 mSv a?1 at Kara Agach. Ingestion dose was negligible for a critical group member living at Mailuu Suu. At Kara Agach, however, under the hypothesis that all food and fodder is cultivated locally, exposure from ingestion is much higher (?10–30 mSv a?1). In case of an accidental scenario [(part of) Tailing 3 content thrust to river], estimated additional maximum doses result in 45 and 77 mSv for an adult and a child, respectively.

H. Vandenhove; L. Sweeck; D. Mallants; H. Vanmarcke; A. Aitkulov; O. Sadyrov; M. Savosin; B. Tolongutov; M. Mirzachev; J.J. Clerc; H. Quarch; A. Aitaliev

2006-01-01T23:59:59.000Z

134

RCRA Assessment Plan for Single-Shell Tank Waste Management Area T  

SciTech Connect

This plan describes the data quality objectives process used to guide information gathering to further the assessment at WMA T.

Horton, Duane G.

2006-01-15T23:59:59.000Z

135

Assessment of Pesticide Exposure in Female Population Living in Cotton Growing Areas of Punjab, Pakistan  

Science Journals Connector (OSTI)

Present study was conducted in the southern Punjab i.e. Multan and Bahawalpur Divisions, the major cotton growing areas of Pakistan. The field study was limited to a manageable geographical area where female cott...

Seema Tahir; Tahir Anwar

2012-12-01T23:59:59.000Z

136

Groundwater quality assessment plan for single-shell waste management area B-BX-BY at the Hanford Site  

SciTech Connect

Pacific Northwest National Laboratory conducted a first determination groundwater quality assessment at the Hanford Site. This work was performed for the US Department of Energy, Richland Operations Office, in accordance with the Federal Facility Compliance Agreement during the time period 1996--1998. The purpose of the assessment was to determine if waste from the Single-Shell Tank (SST) Waste Management Area (WMA) B-BX-BY had entered the groundwater at levels above the drinking water standards (DWS). The resulting assessment report documented evidence demonstrating that waste from the WMA has, most likely, impacted groundwater quality. Based on 40 CFR 265.93 [d] paragraph (7), the owner-operator must continue to make the minimum required determinations of contaminant level and of rate/extent of migrations on a quarterly basis until final facility closure. These continued determinations are required because the groundwater quality assessment was implemented prior to final closure of the facility.

SM Narbutovskih

2000-03-31T23:59:59.000Z

137

Groundwater impact assessment for the 216-U-17 Crib, 200 West Area  

SciTech Connect

As required by the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement milestone M-17-00A), this report assesses the impact to groundwater from discharge of process condensate to the ground at the 216-U-17 Crib. The assessment considers impacts associated with moisture movement through soil beneath the crib and the potential transport of contaminants to the groundwater.

Reidel, S.P.; Johnson, V.G.; Kline, N.W.

1993-06-01T23:59:59.000Z

138

NREL: Gearbox Reliability Collaborative - Gearbox Reliability Collaborative  

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

Publications Publications Screenshot of the cover of an NREL report, titled Gearbox Reliability Collaborative Project Report: Findings from Phase 1 and Phase 2 testing. The NREL wind research program's Gearbox Reliability Collaborative publishes reports and presentations of its activities. General Gearbox Reliability Collaborative Phase 3 Gearbox 2 Test Plan 2013 DOE/NREL Gearbox Reliability Collaborative: All Members Meeting Agenda 2012 Gearbox Reliability Collaborative Phase 1 and 2: Testing and Modeling Results 2012 Gearbox Reliability Collaborative Update: A Brief (Presentation) Jan 2012 Gearbox Reliability Collaborative Update (Presentation) April 2012 NREL Collaborates to Improve Wind Turbine Technology (Fact Sheet) 2012 Gearbox Reliability Collaborative - Phase 1 and 2 Overview

139

Benthic assessment of marine areas of particular ecological importance within the German Baltic  

E-Print Network (OSTI)

a strong salinity gradient (5 to 25 psu), four planned offshore Marine Protected Areas (MPAs) within into account that the German Baltic has a strong salinity gradient from the west (approx. 20­25 psu technique,andmeasurementofabioticfactors(salinity,oxygen,sediment parameters). The areas of interest were

Zettler, Michael

140

Gis-technologies for integrated assessment of the productive mining areas  

Science Journals Connector (OSTI)

The paper describes the bases of a new application of GIS-technologies for integrated assessment and comparison of ... exemplified by a comparison of technological characteristics of coals, transportation and pow...

R. Yu. Zamaraev; V. N. Oparin; S. E. Popov; V. P. Potapov…

2008-05-01T23:59:59.000Z

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

Human Reliability Program Workshop  

SciTech Connect

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

142

RCRA Assessment Plan for Single-Shell Tank Waste Management Area TX-TY  

SciTech Connect

WMA TX-TY contains underground, single-shell tanks that were used to store liquid waste that contained chemicals and radionuclides. Most of the liquid has been removed, and the remaining waste is regulated under the RCRA as modi¬fied in 40 CFR Part 265, Subpart F and Washington State’s Hazardous Waste Management Act . WMA TX-TY was placed in assessment monitoring in 1993 because of elevated specific conductance. A groundwater quality assessment plan was written in 1993 describing the monitoring activities to be used in deciding whether WMA TX-TY had affected groundwater. That plan was updated in 2001 for continued RCRA groundwater quality assessment as required by 40 CFR 265.93 (d)(7). This document further updates the assessment plan for WMA TX-TY by including (1) information obtained from ten new wells installed at the WMA after 1999 and (2) information from routine quarterly groundwater monitoring during the last five years. Also, this plan describes activities for continuing the groundwater assessment at WMA TX TY.

Horton, Duane G.

2007-03-26T23:59:59.000Z

143

2012 Annual Planning Summary for Electricity Delivery and Energy Reliability  

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

The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2012 and 2013 within Electricity Delivery and Energy Reliability.

144

Groundwater impact assessment report for the 216-Z-20 Crib, 200 West Area  

SciTech Connect

As required by the Hanford Federal Facility Agreement and Consent Order ([Tri-Party Agreement] Milestone M-17-00A), this report assesses the impact of wastewater discharges to the 216-Z-20 Crib on groundwater quality. The assessment reported herein extends the initial analysis conducted from 1989 through 1990 for the Liquid Effluent Study Final Project Report. Three primary issues are addressed in response to regulator concerns with the initial analysis: The magnitude and status of the soil column transuranic inventory. Potential interactions of wastewater with carbon tetrachloride from adjacent facilities. Preferential pathways created by unsealed monitoring wells.

Johnson, V.G.

1993-10-01T23:59:59.000Z

145

Waste area grouping 2 Phase I task data report: Ecological risk assessment and White Oak Creek watershed screening ecological risk assessment  

SciTech Connect

This report presents an ecological risk assessment for Waste Area Grouping (WAG) 2 based on the data collected in the Phase I remedial investigation (RI). It serves as an update to the WAG 2 screening ecological risk assessment that was performed using historic data. In addition to identifying potential ecological risks in WAG 2 that may require additional data collection, this report serves to determine whether there are ecological risks of sufficient magnitude to require a removal action or some other expedited remedial process. WAG 2 consists of White Oak Creek (WOC) and its tributaries downstream of the Oak Ridge National Laboratory (ORNL) main plant area, White Oak Lake (WOL), the White Oak Creek Embayment of the Clinch River, associated flood plains, and the associated groundwater. The WOC system drains the WOC watershed, an area of approximately 16.8 km{sup 2} that includes ORNL and associated WAGs. The WOC system has been exposed to contaminants released from ORNL and associated operations since 1943 and continues to receive contaminants from adjacent WAGs.

Efroymson, R.A.; Jackson, B.L.; Jones, D.S. [and others] [and others

1996-05-01T23:59:59.000Z

146

A National Assessment of Promising Areas for Switchgrass, Hybrid Poplar, or Willow Energy Crop Production  

SciTech Connect

The objective of this paper is to systematically assess the cropland acreage that could support energy crops and the expected farm gate and delivered prices of energy crops. The assessment is based on output from two modeling approaches: (1) the Oak Ridge County-Level Energy Crop (ORECCL) database (1996 version) and (2) the Oak Ridge Integrated Bioenergy Analysis System (ORIBAS). The former provides county-level estimates of suitable acres, yields, and farmgate prices of energy crops (switchgrass, hybrid poplar, willow) for all fifty states. The latter estimates delivered feedstock prices and quantities within a state at a fine resolution (1 km2) and considers the interplay between transportation costs, farmgate prices, cropland density, and facility demand. It can be used to look at any type of feedstock given the appropriate input parameters. For the purposes of this assessment, ORIBAS has been used to estimate farmgate and delivered switchgrass prices in 11 states (AL, FL, GA, IA, M N, MO, ND, NE, SC, SD, and TN). Because the potential for energy crop production can be considered from several perspectives, and is evolving as policies, economics and our basic understanding of energy crop yields and production costs change, this assessment should be viewed as a snapshot in time.

Graham, R.L.; Walsh, M.E.

1999-02-01T23:59:59.000Z

147

PERFORMANCE ASSESSMENT TO SUPPORT CLOSURE OF SINGLE-SHELL TANK WASTE MANAGEMENT AREA C AT THE HANFORD SITE  

SciTech Connect

Current proposed regulatory agreements (Consent Decree) at the Hanford Site call for closure of the Single-Shell Tank (SST) Waste Management Area (WMA) C in the year 2019. WMA C is part of the SST system in 200 East area ofthe Hanford Site and is one of the first tank farm areas built in mid-1940s. In order to close WMA C, both tank and facility closure activities and corrective actions associated with existing soil and groundwater contamination must be performed. Remedial activities for WMA C and corrective actions for soils and groundwater within that system will be supported by various types of risk assessments and interim performance assessments (PA). The U.S. Department of Energy, Office of River Protection (DOE-ORP) and the State ofWashington Department of Ecology (Ecology) are sponsoring a series of working sessions with regulators and stakeholders to solicit input and to obtain a common understanding concerning the scope, methods, and data to be used in the planned risk assessments and PAs to support closure of WMA C. In addition to DOE-ORP and Ecology staff and contractors, working session members include representatives from the U.S. Enviromnental Protection Agency, the U.S. Nuclear Regulatory Commission (NRC), interested tribal nations, other stakeholders groups, and members of the interested public. NRC staff involvement in the working sessions is as a technical resource to assess whether required waste determinations by DOE for waste incidental to reprocessing are based on sound technical assumptions, analyses, and conclusions relative to applicable incidental waste criteria.

BERGERON MP

2010-01-14T23:59:59.000Z

148

RCRA Assessment Plan for Single-Shell Tank Waste Management Area S-SX at the Hanford Site  

SciTech Connect

A groundwater quality assessment plan was prepared for waste management area S-SX at the Hanford Site. Groundwater monitoring is conducted at this facility in accordance with Title 40, Code of Federal Regulation (CFR) Part 265, Subpart F [and by reference of Washington Administrative Code (WAC) 173-303-400(3)]. The facility was placed in assessment groundwater monitoring program status after elevated waste constituents and indicator parameter measurements (i.e., chromium, technetium-99 and specific conductance) in downgradient monitoring wells were observed and confirmed. A first determination, as allowed under 40 CFR 265.93(d), provides the owner/operator of a facility an opportunity to demonstrate that the regulated unit is not the source of groundwater contamination. Based on results of the first determination it was concluded that multiple source locations in the waste management area could account for observed spatial and temporal groundwater contamination patterns. Consequently, a continued investigation is required. This plan, developed using the data quality objectives process, is intended to comply with the continued investigation requirement. Accordingly, the primary purpose of the present plan is to determine the rate and extent of dangerous waste (hexavalent chromium and nitrate) and radioactive constituents (e.g., technetium-99) in groundwater and to determine their concentrations in groundwater beneath waste management area S-SX. Comments and concerns expressed by the Washington State Department of Ecology on the initial waste management area S-SX assessment report were addressed in the descriptive narrative of this plan as well as in the planned activities. Comment disposition is documented in a separate addendum to this plan.

Chou, C.J.; Johnson, V.G.

1999-10-06T23:59:59.000Z

149

Photovoltaics performance and reliability workshop  

SciTech Connect

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

150

RCRA Assessment Plan for Single-Shell Tank Waste Management Area B-BX-BY at the Hanford Site  

SciTech Connect

This document was prepared as a groundwater quality assessment plan revision for the single-shell tank systems in Waste Management Area B-BX-BY at the Hanford Site. Groundwater monitoring is conducted at this facility in accordance with 40 CFR Part 265, Subpart F. In FY 1996, the groundwater monitoring program was changed from detection-level indicator evaluation to a groundwater quality assessment program when elevated specific conductance in downgradient monitoring well 299 E33-32 was confirmed by verification sampling. During the course of the ensuing investigation, elevated technetium-99 and nitrate were observed above the drinking water standard at well 299-E33-41, a well located between 241-B and 241-BX Tank Farms. Earlier observations of the groundwater contamination and tank farm leak occurrences combined with a qualitative analysis of possible solutions, led to the conclusion that waste from the waste management area had entered the groundwater and were observed in this well. Based on 40 CFR 265.93 [d] paragraph (7), the owner-operator must continue to make the minimum required determinations of contaminant level and rate/extent of migrations on a quarterly basis until final facility closure. These continued determinations are required because the groundwater quality assessment was implemented prior to final closure of the facility.

Narbutovskih, Susan M.

2006-09-29T23:59:59.000Z

151

Geothermal environmental assessment baseline study: vegetation and soils of the Roosevelt Hot Springs Geothermal Resource Area  

SciTech Connect

Identification and elemental concentrations of indigenous soil and plant systems found on the Roosevelt Hot Spring KGRA are described. Twenty-three different soils and five separate plant communities are geographically mapped and identified. One hundred forty-seven plant species were identified. Forbs, shrubs, and grasses are represented by 58, 53, and 36 species respectively. Three sites, each measuring 25 hectares, were selected for long-term vegetative assessment. At these locations a permanent enclosure measuring 24.4 meters x 24.4 meters was constructed to assess long-term effects of livestock grazing. Biomass, plant species, percentage composition, ground cover and livestock carrying capacities were determined at each site. Surface soils and Artemisia tridentata leaf tissue were collected for elemental analysis.

Brown, K.W.; Wiersma, G.B.

1981-07-01T23:59:59.000Z

152

Assessing water quality in Marine Protected Areas from Southern California, USA  

Science Journals Connector (OSTI)

Despite the regulatory mandate to maintain “natural water quality”, there are ?271 storm drain discharges that potentially threaten the 14 designated marine water quality protected areas in Southern California called Areas of Special Biological Significance (ASBS). After sampling 35 site-events, the geomean concentrations of total suspended solids, nutrients, total and dissolved trace metals, and polycyclic aromatic hydrocarbons in the ocean following storm events were similar between reference drainages and ASBS discharge sites. Concentrations of chlorinated hydrocarbons were nondetectable and no post-storm sample exhibited significant toxicity to the endemic purple sea urchin (Strongylocentrotus purpuratus) near ASBS discharge sites. A reference-based threshold was developed and, despite the similarities in average concentrations, there were some individual ASBS discharge sites that were greater than reference background. Cumulatively across all ASBS, the constituents that were most frequently greater than the reference-based threshold were nutrients and general constituents, followed by dissolved and total trace metals.

Kenneth Schiff; Brenda Luk; Dominic Gregorio; Steve Gruber

2011-01-01T23:59:59.000Z

153

Assessment of the Emergency Management Program Training and Drills Functional Area at the Los Alamos National Laboratory, August 2011  

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

LANL-2011-08-04 LANL-2011-08-04 Site: Los Alamos National Laboratory Subject: Office of Enforcement and Oversight's Office of Safety and Emergency Management Evaluations Activity Report of the Assessment of the Emergency Management Program Training and Drills Functional Area Dates of Activity : 08/01/2011 - 08/04/2011 Report Preparer: David Odland/Randy Griffin Activity Description/Purpose: Since the 2007 Office of Health, Safety and Security (HSS) inspection of the Los Alamos National Laboratory (LANL) emergency management program, HSS personnel have conducted periodic visits to follow-up on the corrective actions taken to address the findings in the review. This 2011 assessment was conducted to continue the corrective action follow-up activities and to support the Los Alamos Site Office (LASO) Emergency Management Program Manager in accomplishing

154

Dynamically Coupled 3D Pollutant Dispersion Model for Assessing Produced Water Discharges in the Canadian Offshore Area  

Science Journals Connector (OSTI)

Dynamically Coupled 3D Pollutant Dispersion Model for Assessing Produced Water Discharges in the Canadian Offshore Area ... The collected samples of produced water and seawater were analyzed by the COOGER (Centre for Offshore Oil and Gas Environmental Research) at the Fisheries and Oceans Canada, Environmental Engineering labrotary at the Concordia University, and the Trace Analysis Facility (TAF) at the University of Regina. ... In Offshore Oil and Gas Environmental Effects Monitoring Approaches and Technologies; Armsworthy, S. L.; Cranford, P. J.; Lee, K., Eds.; Battelle Memorial Institute: Columbus, OH 2005; pp 319– 342. ...

Lin Zhao; Zhi Chen; Kenneth Lee

2012-12-26T23:59:59.000Z

155

Performance assessment for the disposal of low-level waste in the 200 West Area Burial Grounds  

SciTech Connect

This document reports the findings of a performance assessment (PA) analysis for the disposal of solid low-level radioactive waste (LLW) in the 200 West Area Low-Level Waste Burial Grounds (LLBG) in the northwest corner of the 200 West Area of the Hanford Site. This PA analysis is required by US Department of Energy (DOE) Order 5820.2A (DOE 1988a) to demonstrate that a given disposal practice is in compliance with a set of performance objectives quantified in the order. These performance objectives are applicable to the disposal of DOE-generated LLW at any DOE-operated site after the finalization of the order in September 1988. At the Hanford Site, DOE, Richland Operations Office (RL) has issued a site-specific supplement to DOE Order 5820.2A, DOE-RL 5820.2A (DOE 1993), which provides additiona I ce objectives that must be satisfied.

Wood, M.I.; Khaleel, R.; Rittmann, P.D.; Lu, A.H.; Finfrock, S.H.; DeLorenzo, T.H. [Westinghouse Hanford Co., Richland, WA (United States); Serne, R.J.; Cantrell, K.J. [Pacific Northwest Lab., Richland, WA (United States)

1995-06-01T23:59:59.000Z

156

GIS-based pre-mining land damage assessment for underground coal mines in high groundwater area  

Science Journals Connector (OSTI)

Coal mining cause different degrees of damage to both land and ecosystems. Evaluation of disturbed land is a fundamental and prerequisite work for land reclamation and rehabilitation. However, most of those evaluations were carried out when mining was under process or after it cease. This paper proposes an innovative assessment model for pre-evaluation which could be implemented before mining activity begins. A geographic information system (GIS) was constructed to evaluate land damage. Three natural condition factors and three geological condition factors were chosen for evaluation. The results show that: land damage was categorised as five degrees, which are negligible, slight, moderate, severe, and very severe. Furthermore, very severely damaged areas are mainly concentrated in the northwest part of the coal mine, whereas slight damaged areas are mainly concentrated in the southwest. The developed coupling technique was used to forecast land damage, and provide reference for reclamation work.

Wu Xiao; Zhenqi Hu

2014-01-01T23:59:59.000Z

157

Canby Area Service Project : Substation and Associated Transmission Line : Environmental Assessment.  

SciTech Connect

Bonneville Power Administration (BPA) provides power to Surprise Valley Electrification Corporation (SVEC) in Modoc County, California. BPA uses PacificCorp's substation and transmission facilities between Alturas and Canby, California to transfer power to SVEC's Canby Substation. In the next year, SVEC expects increased industrial, agricultural, and residential electric loads on their 69-kV transmission system south of Canby. SVEC's substation can accommodate only about 10 percent of the expected additional electric load. BPA's proposed action is intended to meet SVEC's increasing electric load. BPA proposes to meet SVEC's increasing energy load by tapping into BPA's existing BPA Malin-Warner 230-kV transmission line, and building an 7.9-mile transmission line to a new BPA substation. BPA proposes to build the new substation next to the west side of SVEC's Canby Substation (Figure 1). This new substation will allow SVEC to move the additional power over their existing transmission or distribution lines. This report is the environmental assessment of the potential impact of the proposed project. The assessment determined that no environmental impact statement'' is not required.

United States. Bonneville Power Administration.

1992-02-01T23:59:59.000Z

158

Canby Area Service Project substation and associated transmission line. Environmental Assessment  

SciTech Connect

Bonneville Power Administration (BPA) provides power to Surprise Valley Electrification Corporation (SVEC) in Modoc County, California. BPA uses PacificCorp`s substation and transmission facilities between Alturas and Canby, California to transfer power to SVEC`s Canby Substation. In the next year, SVEC expects increased industrial, agricultural, and residential electric loads on their 69-kV transmission system south of Canby. SVEC`s substation can accommodate only about 10 percent of the expected additional electric load. BPA`s proposed action is intended to meet SVEC`s increasing electric load. BPA proposes to meet SVEC`s increasing energy load by tapping into BPA`s existing BPA Malin-Warner 230-kV transmission line, and building an 7.9-mile transmission line to a new BPA substation. BPA proposes to build the new substation next to the west side of SVEC`s Canby Substation (Figure 1). This new substation will allow SVEC to move the additional power over their existing transmission or distribution lines. This report is the environmental assessment of the potential impact of the proposed project. The assessment determined that no ``environmental impact statement`` is not required.

Not Available

1992-02-01T23:59:59.000Z

159

Geothermal exploration assessment and interpretation, Upper Klamah Lake Area, Klamath Basin, Oregon  

SciTech Connect

Data from public and private sources on the Klamath Basin geothermal resource are reviewed, synthesized, and reinterpreted. In this, the second and final phase of the work, geological, remote sensing, geochemical, temperature gradient, gravity, aeromagnetic, and electrical resistivity data sets are examined. These data were derived from surveys concentrated on the east and west shores of Upper Klamath Lake. The geological, remote sensing, and potential field data suggest a few northeast-trending discontinuities, which cross the regional north-westerly strike. The near-surface distribution of warm water appears to be related to the intersections of these lineaments and northwest-trending faults. The groundwater geochemical data are reviewed and the various reservoir temperature estimates compared. Particular attention is given to specific electrical conductivities of waters as an interpretational aid to the subsurface resistivity results. A clear trend emerges in the Klamath Falls/Olene Gap area; hotter waters are associated with higher specific conductivities. In the Nuss Lake/Stukel Mountain area the opposite trend prevails, although the relationship is somewhat equivocal.

Stark, M.; Goldstein, N.E.; Wollenberg, H.A.

1980-09-01T23:59:59.000Z

160

Program Plan for Revision of the Z-Area Saltstone Disposal Facility Performance Assessment  

SciTech Connect

Savannah River National Laboratory (SRNL) and the Saltstone Project, are embarking on the next revision to the Saltstone Disposal Facility (SDF) performance assessment (PA). This program plan has been prepared to outline the general approach, scope, schedule and resources for the PA revision. The plan briefly describes the task elements of the PA process. It discusses critical PA considerations in the development of conceptual models and interpretation of results. Applicable quality assurance (QA) requirements are identified and the methods for implementing QA for both software and documentation are described. The plan identifies project resources supporting the core team and providing project oversight. Program issues and risks are identified as well as mitigation of those risks. Finally, a preliminary program schedule has been developed and key deliverables identified. A number of significant changes have been implemented since the last PA revision resulting in a new design for future SDF disposal units. This revision will encompass the existing and planned disposal units, PA critical radionuclides and exposure pathways important to SDF performance. An integrated analysis of the overall facility layout, including all disposal units, will be performed to assess the impact of plume overlap on PA results. Finally, a rigorous treatment of uncertainty will be undertaken using probabilistic simulations. This analysis will be reviewed and approved by DOE-SR, DOE-HQ and potentially the Nuclear Regulatory Commission (NRC). This revision will be completed and ready for the start of the DOE review at the end of December 2006. This work supports a Saltstone Vault 2 fee-bearing milestone. This milestone includes completion of the Vault 2 module of the PA revision by the end of FY06.

Cook, James R.

2005-12-07T23:59:59.000Z

Note: This page contains sample records for the topic "reliability assessment area" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

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

162

Environmental assessment for operations, upgrades, and modifications in SNL/NM Technical Area IV  

SciTech Connect

The proposed action for this EA for Sandia National Laboratories/New Mexico Technical Area IV, includes continuing existing operations, modification of an existing accelerator (Particle Beam Fusion Accelerator II) to support defnese-related Z-pinch experiments, and construction of two transformer oil storage tanks to support the expansion of the Advanced Pulsed Power Research Module, a single pulse accelerator. Based on the analyses in the EA, DOE believes that the proposed action is not a major federal action significantly affecting the quality of the human environment within the meaning of NEPA and CEQ NEPA implementing regulations in 40 CFR 1508.18 and 1508.27. Therefore, an environmental impact statement is not required, and a Finding of No Significant Impact is issued.

NONE

1996-04-01T23:59:59.000Z

163

Software Reliability Cases: The Bridge Between Hardware, Software and System Safety and Reliability  

SciTech Connect

High integrity/high consequence systems must be safe and reliable; hence it is only logical that both software safety and software reliability cases should be developed. Risk assessments in safety cases evaluate the severity of the consequences of a hazard and the likelihood of it occurring. The likelihood is directly related to system and software reliability predictions. Software reliability cases, as promoted by SAE JA 1002 and 1003, provide a practical approach to bridge the gap between hardware reliability, software reliability, and system safety and reliability by using a common methodology and information structure. They also facilitate early insight into whether or not a project is on track for meeting stated safety and reliability goals, while facilitating an informed assessment by regulatory and/or contractual authorities.

Herrmann, D.S.; Peercy, D.E.

1999-01-08T23:59:59.000Z

164

Environmental assessment: Yucca Mountain Site, Nevada Research and Development Area, Nevada; Volume 2  

SciTech Connect

In February 1983, the US Department of Energy (DOE) identified the Yucca Mountain site in Nevada as one of nine potentially acceptable sites for a mined geologic repository for spent nuclear fuel and high-level radioactive waste. The site is in the Great Basin, which is one of five distinct geohydrologic settings considered for the first repository. To determine their suitability, the Yucca Mountain site and the eight other potentially acceptable sites have been evaluated in accordance with the DOE`s General Guidelines for the Recommendation of Sites for the Nuclear Waste Repositories. These evaluations were reported in draft environmental assessments (EAs), which were issued for public review and comment. After considering the comments received on the draft EAs, the DOE prepared the final EAs. On the basis of the evaluations reported in this EA, the DOE has found that the Yucca Mountain site is not disqualified under the guidelines. The DOE has also found that is is suitable for site characterization because the evidence does not support a conclusion that the site will not be able to meet each of the qualifying conditions specified in the guidelines. On the basis of these findings, the DOE is nominating the Yucca Mountain site as one of five sites suitable for characterization.

NONE

1986-05-01T23:59:59.000Z

165

Environmental assessment: Yucca Mountain site, Nevada research and development area, Nevada; Volume 3  

SciTech Connect

In February 1983, the US Department of Energy (DOE) identified the Yucca Mountain site in Nevada as one of nine potentially acceptable sites for a mined geologic repository for spent nuclear fuel and high-level radioactive waste. The site is in the Great Basin, which is one of five distinct geohydrologic settings considered for the first repository. To determine their suitability, the Yucca Mountain site and the eight other potentially acceptable sites have been evaluated in accordance with the DOE`s General Guidelines for the Recommendation of Sites for the Nuclear Waste Repositories. These evaluations were reported in draft environmental assessments (EAs), which were issued for public review and comment. After considering the comments received on the draft EAs, the DOE prepared the final EAs. On the basis of the evaluations reported in this EA, the DOE has found that the Yucca Mountain site is not disqualified under the guidelines. The DOE has also found that it is suitable for site characterization because the evidence does not support a conclusion that the site will not be able to meet each of the qualifying conditions specified in the guidelines. On the basis of these findings, the DOE is nominating the Yucca Mountain site as one of five sites suitable for characterization.

NONE

1986-05-01T23:59:59.000Z

166

Radiological performance assessment for the E-Area Vaults Disposal Facility  

SciTech Connect

The E-Area Vaults (EAVs) located on a 200 acre site immediately north of the current LLW burial site at Savannah River Site will provide a new disposal and storage site for solid, low-level, non-hazardous radioactive waste. The EAV Disposal Facility will contain several large concrete vaults divided into cells. Three types of structures will house four designated waste types. The Intermediate Level Non-Tritium Vaults will receive waste radiating greater than 200 mR/h at 5 cm from the outer disposal container. The Intermediate Level Tritium Vaults will receive waste with at least 10 Ci of tritium per package. These two vaults share a similar design, are adjacent, share waste handling equipment, and will be closed as one facility. The second type of structure is the Low Activity Waste Vaults which will receive waste radiating less than 200 mR/h at 5 cm from the outer disposal container and containing less than 10 Ci of tritium per package. The third facility, the Long Lived Waste Storage Building, provides covered, long term storage for waste containing long lived isotopes. Two additional types of disposal are proposed: (1) trench disposal of suspect soil, (2) naval reactor component disposal. To evaluate the long-term performance of the EAVs, site-specific conceptual models were developed to consider: (1) exposure pathways and scenarios of potential importance; (2) potential releases from the facility to the environment; (3) effects of degradation of engineered features; (4) transport in the environment; (5) potential doses received from radionuclides of interest in each vault type.

Cook, J.R.; Hunt, P.D. [Westinghouse Savannah River Co., Aiken, SC (United States)

1994-04-15T23:59:59.000Z

167

2013 Reliability & Markets Peer Review | Department of Energy  

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

2013 Reliability & Markets Peer Review 2013 Reliability & Markets Peer Review 2013 Reliability & Markets Peer Review The Transmission Reliability R&D Reliability & Markets Peer Review included 13 presentations over 2 days on August 6 - 7, 2013 at Cornell University in Ithaca, NY. Presentations are available through the links. The agenda and list of presentations are included below. The Reliability and Markets activity of the Transmission Reliability program researches, develops, and implements electricity infrastructure and market simulations that integrate economics and engineering principles. The activity helps to ensure electric reliability, while also improving the efficiency and economics of market operations. Day 1: August 6 Session I Transmission Investment Assessment Under Uncertainty, Ben Hobbs,

168

Washington DC Reliability Requirements and the Need to Operate Mirant's  

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

Washington DC Reliability Requirements and the Need to Operate 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) 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) Pursuant to Docket No. EO-05-01: Oak Ridge National Laboratory provided an analysis of the Mirant Potomac River Generation Station in 2005 and discussed the reliability requirements of the local area and the potential impacts on reliability of changing operation of the Potomac River Generating Station in this paper. Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability.pdf

169

Reliability-Centered Maintenance  

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

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

170

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

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

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

171

First Draft Performance Assessment for the H-Area Tank Farm at the Savannah River Site - Part 2  

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

8 of 864 8 of 864 1.0 EXECUTIVE SUMMARY This Performance Assessment (PA) for the Savannah River Site (SRS) was prepared to support the eventual removal from service of the H-Area Tank Farm (HTF) underground radioactive waste tanks and ancillary equipment. This PA provides the technical basis and results to be used in subsequent documents to demonstrate compliance with the pertinent requirements identified below for removal from service and eventual final closure of the HTF. ï‚· U.S. Department of Energy (DOE) Order 435.1 Change 1 ï‚· Title 10 Code of Federal Regulations (CFR) Part 61 Subpart C as identified in "Ronald W. Reagan National Defense Authorization Act (NDAA) for Fiscal Year 2005," Section 3116 ï‚· South Carolina Department of Health and Environmental Control (SCDHEC)

172

Shadow Review of the Advanced Mixed Waste Treatment Project Transuranic Storage Area Retrieval Enclosue Restrieval Restart DOE Readiness Assessment  

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

ID-2011-09-22 ID-2011-09-22 Site: Idaho Site - Idaho Cleanup Project Subject: Office of Enforcement and Oversight's Office of Safety and Emergency Management Evaluations Activity Report for the Shadow Review of the Advanced Mixed Waste Treatment Project (AMWTP) Transuranic Storage Area-Retrieval Enclosure (TSA-RE) Retrieval Restart Department of Energy Readiness Assessment Dates of Activity : 09/20/2011 - 09/22/2011 Report Preparer: Aleem Boatright Activity Description/Purpose: A review of nuclear safety implementation verification review (IVR) procedures and processes was conducted at the Idaho Site from September 12-22, 2011. The scope originally included shadowing of the Department of Energy (DOE) Idaho Operations Office (DOE-ID) Idaho Cleanup Project IVR for the Sodium Bearing Waste Treatment Project (SBWTP).

173

First Draft Performance Assessment for the H-Area Tank Farm at the Savannah River Site - Part 3  

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

66 of 864 66 of 864 3.0 DISPOSAL FACILITY CHARACTERISTICS Section 3.1 provides information regarding site characteristics including detailed information furnished for those characteristics that influence the contaminant transport modeling assumptions provided in Chapter 4. ï‚· Section 3.1.1 provides a general description and layout of the site and the HTF to orient the reader and includes the current (as of 2009) estimated population distribution of the surrounding area as well as future land use planning for information purposes. ï‚· Section 3.1.2 describes meteorological and climatological data collection at SRS. This data collection determines appropriate modeling assumptions related to rainfall and temperature to assess the performance of the HTF closure cap presented in SRNL-ESB-

174

Shadow Review of the Advanced Mixed Waste Treatment Project Transuranic Storage Area Retrieval Enclosue Restrieval Restart DOE Readiness Assessment  

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

ID-2011-09-22 ID-2011-09-22 Site: Idaho Site - Idaho Cleanup Project Subject: Office of Enforcement and Oversight's Office of Safety and Emergency Management Evaluations Activity Report for the Shadow Review of the Advanced Mixed Waste Treatment Project (AMWTP) Transuranic Storage Area-Retrieval Enclosure (TSA-RE) Retrieval Restart Department of Energy Readiness Assessment Dates of Activity : 09/20/2011 - 09/22/2011 Report Preparer: Aleem Boatright Activity Description/Purpose: A review of nuclear safety implementation verification review (IVR) procedures and processes was conducted at the Idaho Site from September 12-22, 2011. The scope originally included shadowing of the Department of Energy (DOE) Idaho Operations Office (DOE-ID) Idaho Cleanup Project IVR for the Sodium Bearing Waste Treatment Project (SBWTP).

175

FINAL ENVIRONMENTAL ASSESSMENT FOR REMOVAL ACTIONS AT THE TECHNICAL AREA III CLASSIFIED WASTE LANDFILL, SANDIA NATIONAL LABORATORIES, NEW MEXICO - DOE/EA-1729  

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

FINAL ENVIRONMENTAL ASSESSMENT FOR REMOVAL FINAL ENVIRONMENTAL ASSESSMENT FOR REMOVAL ACTIONS AT THE TECHNICAL AREA III CLASSIFIED WASTE LANDFILL, SANDIA NATIONAL LABORATORIES, NEW MEXICO DOE/EA-1729 August 2010 National Nuclear Security Administration Sandia Site Office P.O. Box 5400 Albuquerque, New Mexico 87185-5400 DOE/EA-1729: Environmental Assessment for Removal Actions at the Technical Area III August 2010 Classified Waste Landfill, Sandia National Laboratories, New Mexico i TABLE OF CONTENTS Section 1.0 PURPOSE AND NEED FOR AGENCY ACTION .................................................................... Page 1 1.1 Background .................................................................................................................................. 1

176

Rapid Assessment Survey for exotic organisms in southern California bays and harbors, and abundance in port and non-port areas  

E-Print Network (OSTI)

in port and non-port areas A.N. Cohen1, *, L.H. Harris2 , B.L. Bingham3 , J.T. Carlton4 , J.W. Chapman5 port and non-port areas, a Rapid Assessment Survey of selected habitat types in sheltered waters were sampled to include the three major commercial port areas in southern California, non-port

177

Environmental Assessment for the Transfer of 1100 AREA, Southern Rail Connection and Rolling Stock, Hanford Site, Richland, Washington  

SciTech Connect

This environmental assessment (EA) has been prepared to assess potential environmental impacts associated with the U.S. Department of Energy's proposed action: the transfer of the 1100 Area, southern rail connection and rolling stock to a non-federal entity. Impact information contained herein will be used by the U.S. Department of Energy, Richland Operations Office Manager, to determine if the proposed action is a major federal action significantly affecting the quality of the human environment. If the proposed action is determined to be major and significant, an environmental impact statement will be prepared. If the proposed action is determined not to be major and significant, a Finding of No Significant Impact (FONSI) will be issued and the action can proceed. Criteria used to evaluate significance can be found in Title 40, Code of Federal Regulations (CFR) 1508.27. This EA was prepared in compliance with the ''National Environmental Policy Act'' (NEPA) of 1969, as amended, the Council on Environmental Quality (CEQ) Regulations for Implementing the Procedural Provisions of NEPA (40 CFR 1500-1508), and the U.S. Department of Energy Implementing Procedures for NEPA (10 CFR 1021). The following is a description of each section of the EA. (1) Purpose and Need for Action. This provides a brief statement concerning the problem or opportunity the U.S. Department of Energy is addressing with the proposed action. As necessary, background information is provided. (2) Description of the Proposed Action. A description with sufficient detail to identify potential environmental impacts is provided. (3) Alternatives to the Proposed Action. Reasonable alternative actions, which would address the Purpose and Need, are described. A no action alternative, as required by 10 CFR 1021, also is described. (4) Affected Environment. This provides a brief description of the locale in which the proposed action takes place, and which may be environmentally impacted. (5) Environmental Impacts. The range of environmental impacts, beneficial and adverse, are described for the proposed action. Impacts of alternatives briefly are discussed. (6) Permits and Regulatory Requirements. A brief description of permits and regulatory requirements for the proposed action is provided. (7) Organizations Consulted. Any outside agencies, groups, or individuals contacted as part of environmental assessment documentation preparation are listed. (8) References. Documents used to provide information or data are listed. The appendices contain additional information necessary to support an understanding of the proposed action, alternatives, and potential impacts is provided. Comments resulting from review of the environmental assessment by states and tribes or other stakeholders and the response to those comments will be included in the appendices.

N /A

1998-08-01T23:59:59.000Z

178

Comments of North American Electric Reliability Corporation (NERC) to DOE  

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

North American Electric Reliability Corporation (NERC) North American Electric Reliability Corporation (NERC) to DOE Smart Grid RFI: Addressing Policy and Logistical Challenges Comments of North American Electric Reliability Corporation (NERC) to DOE Smart Grid RFI: Addressing Policy and Logistical Challenges Response to the Department of Energy's ("DOE") Request for Information (RFI) regarding the "Smart Grid RFI: Addressing Policy and Logistical Challenges." The North American Electric Reliability Corporation's ("NERC") Reliability Assessment and Performance Analysis Group ("RAPA") is currently developing a report, entitled "Reliability Consideration from Integration of Smart Grid" that will address many of the issues raised in the DOE RFI. North American Electric Reliability Corporation (NERC)

179

Human Reliability Program Overview  

SciTech Connect

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

180

Power electronics reliability analysis.  

SciTech Connect

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

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

NREL: Gearbox Reliability Collaborative - Gearbox Reliability Collaborative  

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

All Members Meeting All Members Meeting The Gearbox Reliability Collaborative (GRC) All Members Meeting was held on February 4-5, 2013. The meeting covered advancements made across the NREL GRC project and the latest industry updates on gearbox reliability and operations and maintenance practices. The presentations covered gearbox design updates, gearbox testing updates, experimental data analysis, and operations and maintenance research. Presentations Monday, February 4 Time Presenter Organization Presentation 8:30 a.m. Paul Veers NREL Welcome 8:45 a.m. Mike Derby DOE Overview 9:05 a.m. Jon Keller NREL Gearbox Reliability Collaborative Status and Plans 9:20 a.m. Hal Link NREL New Gearbox #2 Test Plan 9:40 a.m. Hal Link NREL NWTC Dynos and Grid Simulator 10:00 a.m. Jon Keller/Brian McNiff NREL/MLI Gearbox Reliability Collaborative, Phase 3: High Speed Shaft Bearing Loads

182

Wildfire Risk Assessment and Community Wildfire Protection in the Chilhowee Mountain Area of Blount County, East Tennessee.  

E-Print Network (OSTI)

??The growing Wildland Urban Interface community in the Chilhowee Mountain area of Blount County, Tennessee, like many other forested areas in the mountains and hills… (more)

Chimchome, Piyarat

2008-01-01T23:59:59.000Z

183

Reliability of lightning resistant overhead distribution lines  

SciTech Connect

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

184

Methodology for Assessing Greenhouse Gas Emissions and Assessing Mitigation Options for On-Road Mobile Sources Project for the Houston-Galveston Area Council  

E-Print Network (OSTI)

Methodology for Assessing Greenhouse Gas Emissions and Assessing Mitigation Options for On reductions in GHG, and b) use analytical tools/methods to assess the emissions reductions possible through and prioritized based on factors such as cost effectiveness, potential for emission reductions, and applicability

185

2013 Annual Summary Report for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada National Security Site, Nye County, Nevada; Review of the Performance Assessments and Composite Analyses  

SciTech Connect

The Maintenance Plan for the Performance Assessments and Composite Analyses for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada Test Site (National Security Technologies, LLC 2007a) requires an annual review to assess the adequacy of the performance assessments (PAs) and composite analyses (CAs), with the results submitted to the U.S. Department of Energy (DOE) Office of Environmental Management. The Disposal Authorization Statements for the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) also require that such reviews be made and that secondary or minor unresolved issues be tracked and addressed as part of the maintenance plan (DOE 1999a, 2000). The U.S. Department of Energy, National Nuclear Security Administration Nevada Field Office performed an annual review of the Area 3 and Area 5 RWMS PAs and CAs for fiscal year (FY) 2013. This annual summary report presents data and conclusions from the FY 2013 review, and determines the adequacy of the PAs and CAs. Operational factors (e.g., waste forms and containers, facility design, and waste receipts), closure plans, monitoring results, and research and development (R&D) activities were reviewed to determine the adequacy of the PAs. Likewise, the environmental restoration activities at the Nevada National Security Site (NNSS) relevant to the sources of residual radioactive material that are considered in the CAs, the land-use planning, and the results of the environmental monitoring and R&D activities were reviewed to determine the adequacy of the CAs. Important developments in FY 2013 include the following: • Development of a new Area 5 RWMS closure inventory estimate based on disposals through FY 2013 • Evaluation of new or revised waste streams by special analysis • Development of version 4.115 of the Area 5 RWMS GoldSim PA/CA model The Area 3 RWMS has been in inactive status since July 1, 2006, with the last shipment received in April 2006. The FY 2013 review of operations, facility design, closure plans, monitoring results, and R&D results for the Area 3 RWMS indicates no changes that would impact PA validity. The conclusion of the annual review is that all performance objectives can be met and the Area 3 RWMS PA remains valid. There is no need to the revise the Area 3 RWMS PA. Review of Area 5 RWMS operations, design, closure plans, monitoring results, and R&D activities indicates that no significant changes have occurred. The FY 2013 PA results, generated with the Area 5 RWMS v4.115 GoldSim PA model, indicate that there continues to be a reasonable expectation of meeting all performance objectives. The results and conclusions of the Area 5 RWMS PA are judged valid, and there is no need to the revise the PA. A review of changes potentially impacting the CAs indicates that no significant changes occurred in FY 2013. The continuing adequacy of the CAs was evaluated with the new models, and no significant changes that would alter the CAs results or conclusions were found. The revision of the Area 3 RWMS CA, which will include the Yucca Flat Underground Test Area (Corrective Action Unit [CAU] 97) source term, is scheduled for FY 2024, following the completion of the Corrective Action Decision Document/Corrective Action Plan in FY 2015. Inclusion of the Frenchman Flat Underground Test Area (CAU 98) results in the Area 5 RWMS CA is scheduled for FY 2016, pending the completion of the CAU 98 Closure Report in FY 2015. Near-term R&D efforts will focus on continuing development of the PA, CA, and inventory models for the Area 3 and Area 5 RWMS.

Shott, Gregory [NSTec] [NSTec

2014-03-01T23:59:59.000Z

186

Assessment of fission product content of high-level liquid waste supernate on E-Area vault package criteria  

SciTech Connect

This report assesses the tank farm`s high level waste supernate to determine any potential impacts on waste certification for the E-Area vaults (EAV). The Waste Acceptance Criteria procedure (i.e., WAC 3.10 of the 1S manual) imposes administrative controls on radioactive material in waste packages sent to the EAV, specifically on six fission products. Waste tank supernates contain various fission products, so any waste package containing material contaminated with supernate will contain these radioactive isotopes. This report develops the process knowledge basis for characterizing the supernate composition for these isotopes, so that appropriate controls can be implemented to ensure that the EAV WAC is met. Six fission products are listed in the SRS 1S Manual WAC 3.10: Se-79, which decays to bromine; Sr-90, which decays to niobium; Tc-99, which decays to ruthenium; Sn-126, which decays to tellurium; I-129, which decays to xenon; and Cs-137, which decays to barium.

Brown, D.F.

1994-06-30T23:59:59.000Z

187

Energy Efficiency and Reliability Tradeoff in Optical Core Networks  

Science Journals Connector (OSTI)

We assess the highest allowable reliability performance degradation of active components caused by applying energy-efficient mechanisms. EDFAs are identified as the most critical...

Wiatr, Pawel; Chen, Jiajia; Monti, Paolo; Wosinska, Lena

188

NREL: Performance and Reliability R&D - PV Module Reliability...  

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

Reliability R and D Printable Version PV Module Reliability Workshop NREL hosts an annual Photovoltaic Module Reliability Workshop (PVMRW) so that solar technology experts can...

189

2008 Annual Summary Report for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada Test Site, Nye County, Nevada: Review of the Performance Assessments and Composite Analyses  

SciTech Connect

The Maintenance Plan for the Performance Assessments and Composite Analyses for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada Test Site requires an annual review to assess the adequacy of the Performance Assessments (PAs) and Composite Analyses (CAs) for each of the facilities, with the results submitted annually to U.S. Department of Energy (DOE) Headquarters. The Disposal Authorization Statements for the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) also require that such reviews be made and that secondary or minor unresolved issues be tracked and addressed as part of the maintenance plan. The U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (NNSA/NSO) performed an annual review in fiscal year (FY) 2008 by evaluating operational factors and research results that impact the continuing validity of the PAs and CAs. This annual summary report presents data and conclusions from the FY 2008 review, and determines the adequacy of the PAs and CAs. Operational factors (e.g., waste forms and containers, facility design, and waste receipts), closure plans, monitoring results, and research and development (R&D) activities were reviewed to determine the adequacy of the PAs. Likewise, the environmental restoration activities at the Nevada Test Site relevant to the sources of residual radioactive material that are considered in the CAs, the land-use planning, and the results of the environmental monitoring and R&D activities were reviewed to determine the adequacy of the CAs.

NSTec Environmental Management

2009-03-30T23:59:59.000Z

190

Medical Aspects of Reliability  

SciTech Connect

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

191

Impact of automatic switches on power distribution system reliability  

Science Journals Connector (OSTI)

In this paper quantitative impact of automatic switches on the reliability of power distribution systems is studied. Based on the characteristics of the studied system's topology, the reliability model is developed for the implementation of Monte Carlo simulation. Reliability indices on each load have been computed to obtain an overall reliability assessment of the system, and the sensitivity of the reliability indices to the location of automatic switches is also studied. Simulation results are used to illustrate the validity of the approach and are compared with the historical reliability records.

H. Zheng; Y. Cheng; B. Gou; D. Frank; A. Bern; W.E. Muston

2012-01-01T23:59:59.000Z

192

Low-to-moderate temperature geothermal resource assessment for Nevada: Area specific studies, final report for the period June 1, 1980-August 30, 1981  

SciTech Connect

The Hawthorne study area is located in Mineral County, Nevada and surrounds the municipality of the same name. It encompasses an area of approximately 310 sq. km (120 sq. mi), and most of the land belongs to the US Army Ammunition Plant. The energy needs of the military combined with those of the area population (over 5,000 residents) are substantial. The area is classified as having a high potential for direct applications using the evaluation scheme described in Trexler and others (1979). A variety of scientific techniques was employed during area-wide resource assessment. General geologic studies demonstrate the lithologic diversity in the area; these studies also indicate possible sources for dissolved fluid constituents. Geophysical investigations include aeromagnetic and gravity surveys which aid in defining the nature of regional, and to a lesser extent, local variations in subsurface configurations. Surface and near-surface structural features are determined using various types of photo imagery including low sun-angle photography. An extensive shallow depth temperature probe survey indicates two zones of elevated temperature on opposite sides of the Walker Lake basin. Temperature-depth profiles from several wells in the study area indicate significant thermal fluid-bearing aquifers. Fluid chemical studies suggest a wide spatial distribution for the resource, and also suggest a meteoric recharge source in the Wassuk Range. Finally, a soil-mercury survey was not a useful technique in this study area. Two test holes were drilled to conclude the area resource assessment, and thermal fluids were encountered in both wells. The western well has measured temperatures as high as 90 C (194 F) within 150 meters (500 ft) of the surface. Temperature profiles in this well indicate a negative temperature gradient below 180 meters (590 ft). The eastern hole had a bottom hole temperature of 61 C (142 F) at a depth of only 120 meters (395 ft). A positive gradient is observed to a total depth in the well.

Trexler, Dennis T.; Koeing, Brian A.; Flynn, Thomas; Bruce, James L.; Ghusn, George Jr.

1981-08-30T23:59:59.000Z

193

Northeast United States U.S. Department of Energy Office of Electricity Delivery and Energy Reliability  

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

Assessment of the Adequacy of Assessment of the Adequacy of Natural Gas Pipeline Capacity in the Northeast United States U.S. Department of Energy Office of Electricity Delivery and Energy Reliability Energy Infrastructure Modeling and Analysis Division November 2013 Northeast U.S. Natural Gas Pipeline Adequacy Assessment, 2013 2 Preface In 2005-06, the U.S. DOE Office of Electricity Delivery and Energy Reliability (OE) conducted a study on the adequacy of interstate natural gas pipeline capacity serving the northeastern United States to meet natural gas demand in the event of a pipeline disruption. The study modeled gas demand for select market areas in the Northeast under a range of different weather conditions. The study then determined how interstate pipeline flow patterns could

194

Development in structural systems reliability theory  

Science Journals Connector (OSTI)

This paper is concerned with two topics on structural systems reliability theory. One covers automatic generation of failure mode equations, identifications of stochastically dominant failure modes, and reliability assessment of redundant structures. Reduced stiffness matrixes and equivalent nodal forces representing the failed elements are introduced for expressing the safety margins of the elements, using a matrix method. Dominant failure modes are systematically selected by a branch-and-bound technique and heuristic operations. The other discusses the various optimum design problems based on reliability concept. Those problems are interpreted through a solution to a multi-objective optimization problem.

Y. Murotsu

1986-01-01T23:59:59.000Z

195

Information Concerning Reliability Impacts under Various System  

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

Information Concerning Reliability Impacts under Various System Information Concerning Reliability Impacts under Various System Configurations of the Mirant Potomac River Plant Information Concerning Reliability Impacts under Various System Configurations of the Mirant Potomac River Plant Docket No. EO-05-01: PJM Interconnection, L.L.C. and PEPCO Holdings, Inc. is hereby providing you with additional information concerning reliability impacts under various system conditions associated with the unavailability of the Potomac River Generating Station to serve load in the D.C. area. Also enclosed as part of this submittal is material provided by PEPCO (balance of sentence redacted) In addition, there is a discussion concerning the impacts of demand side response in addressing this situation. Information Concerning Reliability Impacts under Various System

196

2012 Annual Summary Report for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada National Security Site, Nye County, Nevada: Review of the Performance Assessments and Composite Analyses  

SciTech Connect

The Maintenance Plan for the Performance Assessments and Composite Analyses for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada Test Site (National Security Technologies, LLC 2007a) requires an annual review to assess the adequacy of the performance assessments (PAs) and composite analyses (CAs), with the results submitted to the U.S. Department of Energy (DOE) Office of Environmental Management. The Disposal Authorization Statements for the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) also require that such reviews be made and that secondary or minor unresolved issues be tracked and addressed as part of the maintenance plan (DOE 1999a, 2000). The U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office performed an annual review of the Area 3 and Area 5 RWMS PAs and CAs for fiscal year (FY) 2012. This annual summary report presents data and conclusions from the FY 2012 review, and determines the adequacy of the PAs and CAs. Operational factors (e.g., waste forms and containers, facility design, and waste receipts), closure plans, monitoring results, and research and development (R&D) activities were reviewed to determine the adequacy of the PAs. Likewise, the environmental restoration activities at the Nevada National Security Site (NNSS) relevant to the sources of residual radioactive material that are considered in the CAs, the land-use planning, and the results of the environmental monitoring and R&D activities were reviewed to determine the adequacy of the CAs. Important developments in FY 2012 include the following: ? Release of a special analysis for the Area 3 RWMS assessing the continuing validity of the PA and CA ? Development of a new Area 5 RWMS closure inventory estimate based on disposals through FY 2012 ? Evaluation of new or revised waste streams by special analysis ? Development of version 4.114 of the Area 5 RWMS GoldSim PA model The Area 3 RWMS has been in inactive status since July 1, 2006, with the last shipment received in April 2006. The FY 2012 review of operations, facility design, closure plans, monitoring results, and R&D results for the Area 3 RWMS indicates no changes that would impact PA validity. A special analysis using the Area 3 RWMS v2.102 GoldSim PA model was prepared to update the PA results for the Area 3 RWMS in FY 2012. The special analysis concludes that all performance objectives can be met and the Area 3 RWMS PA remains valid. There is no need to the revise the Area 3 RWMS PA. Review of Area 5 RWMS operations, design, closure plans, monitoring results, and R&D activities indicates no significant changes other than an increase in the inventory disposed. The FY 2012 PA results, generated with the Area 5 RWMS v4.114 GoldSim PA model, indicate that there continues to be a reasonable expectation of meeting all performance objectives. The results and conclusions of the Area 5 RWMS PA are judged valid, and there is no need to the revise the PA. A review of changes potentially impacting the CAs indicates that no significant changes occurred in FY 2012. The continuing adequacy of the CAs was evaluated with the new models, and no significant changes that would alter CA results or conclusions were found. The revision of the Area 3 RWMS CA, which will include the Underground Test Area source term (Corrective Action Unit [CAU] 97), is scheduled for FY 2024, following the completion of the Yucca Flat CAU 97 Corrective Action Decision Document/Corrective Action Plan in FY 2016. Inclusion of the Frenchman Flat CAU 98 results in the Area 5 RWMS CA is scheduled for FY 2016, pending the completion of the CAU 98 closure report in FY 2015. Near-term R&D efforts will focus on continuing development of the Area 3 and Area 5 RWMS GoldSim PA/CA and inventory models.

Shott, G. [National Security Technologies, LLC

2013-03-18T23:59:59.000Z

197

2011 Annual Summary Report for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada National Security Site, Nye County, Nevada: Review of the Performance Assessments and Composite Analyses  

SciTech Connect

The Maintenance Plan for the Performance Assessments and Composite Analyses for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada Test Site (National Security Technologies, LLC, 2007a) requires an annual review to assess the adequacy of the Performance Assessments (PAs) and Composite Analyses (CAs), with the results submitted annually to U.S. Department of Energy (DOE) Office of Environmental Management. The Disposal Authorization Statements for the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) also require that such reviews be made and that secondary or minor unresolved issues be tracked and addressed as part of the maintenance plan (DOE, 1999a; 2000). The U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office performed an annual review of the Area 3 and Area 5 RWMS PAs and CAs for fiscal year (FY) 2011. This annual summary report presents data and conclusions from the FY 2011 review, and determines the adequacy of the PAs and CAs. Operational factors (e.g., waste forms and containers, facility design, and waste receipts), closure plans, monitoring results, and research and development (R and D) activities were reviewed to determine the adequacy of the PAs. Likewise, the environmental restoration activities at the Nevada National Security Site (NNSS) (formerly the Nevada Test Site) relevant to the sources of residual radioactive material that are considered in the CAs, the land-use planning, and the results of the environmental monitoring and R and D activities were reviewed to determine the adequacy of the CAs. Important developments in FY 2011 include the following: (1) Operation of a new shallow land disposal unit and a new Resource Conservation and Recovery Act (RCRA)-compliant lined disposal unit at the Area 5 RWMS; (2) Development of new closure inventory estimates based on disposals through FY 2011; (3) Evaluation of new or revised waste streams by special analysis; (4) Development of version 2.102 of the Area 3 RWMS GoldSim PA model; and (5) Development of version 4.113 of the Area 5 RWMS GoldSim PA model. Analysis of the latest available data using the Area 5 RWMS v4.113 GoldSim PA model indicates that all performance objectives can be met. The results and conclusions of the Area 5 RWMS PA are judged valid, and there is no need to the revise the PA. The Area 3 RWMS has been in inactive status since July 1, 2006, with the last shipment received in April 2006. In FY 2011, there were no operational changes, monitoring results, or R and D results for the Area 3 RWMS that would impact PA validity. Despite the increase in waste volume and inventory at the Area 3 RWMS since 1996 when the PA was approved, the facility performance evaluated with the Area 3 RWMS PA GoldSim model, version 2.0 (with the final closure inventory), remains well below the performance objectives set forth in U.S. Department of Energy Order DOE O 435.1, 'Radioactive Waste Management' (DOE, 2001). The conclusions of the Area 3 RWMS PA remain valid. A special analysis was prepared to update the PA and CA results for the Area 3 RWMS in FY 2011. Release of the special analysis is planned for FY 2012. The continuing adequacy of the CAs was evaluated with the new models, and no significant changes that would alter CA results or conclusions were found. Inclusion of the Frenchman Flat Underground Test Area (UGTA) results in the Area 5 RWMS CA is scheduled for FY 2016, pending the completion of the closure report for the Frenchman Flat UGTA corrective action unit (CAU) in FY 2015. An industrial site, CAU 547, with corrective action sites near the Area 3 RWMS was found to have a significant plutonium inventory in 2009. CAU 547 will be evaluated for inclusion of future revisions or updates of the Area 3 RWMS CA. The revision of the Area 3 RWMS CA, which will include the UGTA source terms, is expected in FY 2024, following the completion of the Yucca Flat CAU Corrective Action Decision Document, scheduled for FY 2023. Near-term R and D efforts will focus on continuing development of the Are

NSTec Environmental Management

2012-03-20T23:59:59.000Z

198

Final Environmental Assessment for Proposed Closure of the Airport Landfills Within Technical Area 73 at Los Alamos National Laboratory, Los Alamos, New Mexico  

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

15 15 Final Environmental Assessment for Proposed Closure of the Airport Landfills Within Technical Area 73 at Los Alamos National Laboratory, Los Alamos, New Mexico May 22, 2005 Department of Energy National Nuclear Security Administration Los Alamos Site Office Final EA for Proposed Closure of the Airport Landfills within TA-73 at LANL Page iii of viii Contents Acronyms and Terms .................................................................................................................. vi 1.0 Purpose and Need ................................................................................................. 1 1.1 Introduction.............................................................................................................

199

A 10-year content analysis to assess research theme areas in agricultural education: gap analysis of future research priorities in the discipline.  

E-Print Network (OSTI)

A 10?YEAR CONTENT ANALYSIS TO ASSESS RESEARCH THEME AREAS IN AGRICULTURAL EDUCATION: GAP ANALYSIS OF FUTURE RESEARCH PRIORITIES IN THE DISCIPLINE A Dissertation by LESLIE DAWN JENKINS EDGAR Submitted to the Office of Graduate... IN AGRICULTURAL EDUCATION: GAP ANALYSIS OF FUTURE RESEARCH PRIORITIES IN THE DISCIPLINE A Dissertation by LESLIE DAWN JENKINS EDGAR Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

Edgar, Leslie Dawn

2009-05-15T23:59:59.000Z

200

Result Summary for the Area 5 Radioactive Waste Management Site Performance Assessment Model Version 4.110  

SciTech Connect

Results for Version 4.110 of the Area 5 Radioactive Waste Management Site (RWMS) performance assessment (PA) model are summarized. Version 4.110 includes the fiscal year (FY) 2010 inventory estimate, including a future inventory estimate. Version 4.110 was implemented in GoldSim 10.11(SP4). The following changes have been implemented since the last baseline model, Version 4.105: (1) Updated the inventory and disposal unit configurations with data through the end of FY 2010. (1) Implemented Federal Guidance Report 13 Supplemental CD dose conversion factors (U.S. Environmental Protection Agency, 1999). Version 4.110 PA results comply with air pathway and all-pathways annual total effective dose (TED) performance objectives (Tables 2 and 3, Figures 1 and 2). Air pathways results decrease moderately for all scenarios. The time of the maximum for the air pathway open rangeland scenario shifts from 1,000 to 100 years (y). All-pathways annual TED increases for all scenarios except the resident scenario. The maximum member of public all-pathways dose occurs at 1,000 y for the resident farmer scenario. The resident farmer dose was predominantly due to technetium-99 (Tc-99) (82 percent) and lead-210 (Pb-210) (13 percent). Pb-210 present at 1,000 y is produced predominantly by radioactive decay of uranium-234 (U-234) present at the time of disposal. All results for the postdrilling and intruder-agriculture scenarios comply with the performance objectives (Tables 4 and 5, Figures 3 and 4). The postdrilling intruder results are similar to Version 4.105 results. The intruder-agriculture results are similar to Version 4.105, except for the Pit 6 Radium Disposal Unit (RaDU). The intruder-agriculture result for the Shallow Land Burial (SLB) disposal units is a significant fraction of the performance objective and exceeds the performance objective at the 95th percentile. The intruder-agriculture dose is due predominantly to Tc-99 (75 percent) and U-238 (9.5 percent). The acute intruder scenario results comply with all performance objectives (Tables 6 and 7, Figures 5 and 6). The acute construction result for the SLB disposal units decreases significantly with this version. The maximum acute intruder dose occurs at 1,000 y for the SLB disposal units under the acute construction scenario. The acute intruder dose is caused by multiple radionuclides including U-238 (31 percent), Th-229 (28 percent), plutonium-239 (8.6 percent), U-233 (7.8 percent), and U-234 (6.7 percent). All results for radon-222 (Rn-222) flux density comply with the performance objective (Table 8, Figure 7). The mean Pit 13 RaDU flux density is close to the 0.74 Bq m{sup -2} s{sup -1} limit.

NSTec Environmental Management

2011-07-20T23:59:59.000Z

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

Assessing Reliability In Hydrogen Supply Pathways  

E-Print Network (OSTI)

liquefied natural gas (LNG) at a large, central steamthe established, global LNG infrastructure provided moreenergy supply over the vast LNG network. The global supply

McCarthy, Ryan; Ogden, Joan M

2005-01-01T23:59:59.000Z

202

Assessing Reliability in Energy Supply Systems  

E-Print Network (OSTI)

liquefied natural gas (LNG) trading expected to increase insteam reformation production facility using imported LNG.The LNG supplies come primarily from Trinidad and Tobago,

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

2008-01-01T23:59:59.000Z

203

Assessing reliability in energy supply systems  

E-Print Network (OSTI)

liquefied natural gas (LNG) trading expected to increase insteam reformation production facility using imported LNG.The LNG supplies come primarily from Trinidad and Tobago,

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

2007-01-01T23:59:59.000Z

204

Assessing reliability in energy supply systems  

E-Print Network (OSTI)

and 2) on-site electrolysis of water using renewablepoints of end use via electrolysis of water, so no hydrogen

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

2007-01-01T23:59:59.000Z

205

Assessing Reliability in Energy Supply Systems  

E-Print Network (OSTI)

and 2) on-site electrolysis of water using renewablepoints of end use via electrolysis of water, so no hydrogen

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

2008-01-01T23:59:59.000Z

206

Reliability Assessment Incorporating Operational Considerations and Economic  

E-Print Network (OSTI)

Aspects for Large Interconnected Grids Project Team George Gross, Project Leader University of Illinois For information about this project contact: George Gross Professor of Electrical and Computer Engineering

207

Reliability Standards Owner  

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

208

NREL: Gearbox Reliability Collaborative - Gearbox Reliability Collaborative  

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

Projects Projects Gearbox deficiencies are the result of many factors. Through gearbox modeling and testing, condition monitoring, and the failure database, the collaborative is expanding the industry's knowledge base, recommending efficient and cost-effective improvements, and facilitating immediate improvements in the gearbox life cycle. Gearbox Modeling and Testing Illustration of representative gearbox including the hub, main bearing, main shaft, gearbox, brake, high speed shaft, generator, and bed plate. A complete gearbox redesign has been completed in a collaborative effort between NREL and industry partners. This process documented and analyzed the design process and produced a new gearbox design that integrates knowledge from previous Gearbox Reliability Collaborative (GRC) activities.

209

LAMPF reliability history and program  

Science Journals Connector (OSTI)

Many years of service of the 800?MeV LAMPF H+/H? linac offers the opportunity to evaluate the long?term reliability characteristics of a high?power machine which with up to 800?kW beam power available is as close to an ADTT machine as exists in the world today. Records from the last 15 years of operation were analyzed for trends and areas of deteriorating reliability or disproportionate downtime and used to support engineering judgment on facility refurbishment to regain beam availability. This round of analysis has helped define a further level of detail and automation to be implemented in availability recording. Interesting features which emerge from the history include a clear measurement of the lower availability in the first operating cycle following extended maintenance periods and a consistent picture of the highest availability to be expected in extended operating periods with the facility as used and maintained. The results provide a starting point for informed discussion of reliability goals.

Olin van Dyck

1995-01-01T23:59:59.000Z

210

Reliability improvement of distribution systems using SSVR  

Science Journals Connector (OSTI)

This paper presents a reliability assessment algorithm for distribution systems using a Static Series Voltage Regulator (SSVR). Furthermore, this algorithm considers the effects of Distributed Generation (DG) units, alternative sources, system reconfiguration, load shedding and load adding on distribution system reliability indices. In this algorithm, load points are classified into 8 types and separated restoration times are considered for each class. Comparative studies are conducted to investigate the impacts of DG and alternative source unavailability on the distribution system reliability. For reliability assessment, the customer-oriented reliability indices such as SAIFI, SAIDI, CAIDI ASUI and also load- and energy-oriented indices such as ENS and AENS are evaluated. The effectiveness of the proposed algorithm is examined on the two standard distribution systems consisting of 33 and 69 nodes. The best location of the SSVR in distribution systems is determined based on different reliability indices, separately. Results show that the proposed algorithm is efficient for large-scale radial distribution systems and can accommodate the effects of fault isolation and load restoration.

Mehdi Hosseini; Heidar Ali Shayanfar; Mahmoud Fotuhi-Firuzabad

2009-01-01T23:59:59.000Z

211

2009 Annual Summary Report for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada Test Site, Nye County, Nevada: Review of the Performance Assessments and Composite Analysis  

SciTech Connect

The U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office performed an annual review of the Area 3 and Area 5 Radioactive Wate Management Site (RWMS) Performance Assessments (PAs) and Composite Analyses (CAs) in fiscal year (FY) 2009. This annual summary report presents data and conclusions from the FY 2009 review, and determines the adequacy of the PAs and CAs. Operational factors (e.g., waste forms and containers, facility design, and waste receipts), closure plans, monitoring results, and research and development (R&D) activities were reviewed to determine the adequacy of the PAs. Likewise, the environmental restoration activities at the Nevada Test Site relevant to the sources of residual radioactive material that are considered in the CAs, the land-use planning, and the results of the environmental monitoring and R&D activities were reviewed to determine the adequacy of the CAs.

NSTec Environmental Management

2010-03-15T23:59:59.000Z

212

Assessment  

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

Assessment of the Surveillance Program of the High-Level Waste Storage Tanks at Hanford :.I LALI iE REJ 163 ROOM 1t 4 F77L. -77 .:earmn OfEeg Asitn Sertr fo niomn 4 z. r...

213

Definition: Interconnection Reliability Operating Limit Tv | Open Energy  

Open Energy Info (EERE)

Limit Tv Limit Tv Jump to: navigation, search Dictionary.png Interconnection Reliability Operating Limit Tv The maximum time that an Interconnection Reliability Operating Limit can be violated before the risk to the interconnection or other Reliability Coordinator Area(s) becomes greater than acceptable. Each Interconnection Reliability Operating Limit's Tv shall be less than or equal to 30 minutes.[1] Related Terms Interconnection Reliability Operating Limitinterconnection, interconnection References ↑ Glossary of Terms Used in Reliability Standards An i LikeLike UnlikeLike You like this.Sign Up to see what your friends like. nline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Interconnection_Reliability_Operating_Limit_Tv&oldid=493031

214

Results of Phase I groundwater quality assessment for single-shell tank waste management areas T and TX-TY at the Hanford Site  

SciTech Connect

Pacific Northwest National Laboratory (PNNL) conducted a Phase I, Resource Conservation and Recovery Act of 1976 (RCRA) groundwater quality assessment for the Richland Field Office of the U.S. Department of Energy (DOE-RL) under the requirements of the Federal Facility Compliance Agreement. The purpose of the investigation was to determine if the Single-Shell Tank Waste Management Areas (WMAs) T and TX-TY have impacted groundwater quality. Waste Management Areas T and TX-TY, located in the northern part of the 200 West Area of the Hanford Site, contain the 241-T, 241-TX, and 241-TY tank farms and ancillary waste systems. These two units are regulated under RCRA interim-status regulations (under 40 CFR 265.93) and were placed in assessment groundwater monitoring because of elevated specific conductance in downgradient wells. Anomalous concentrations of technetium-99, chromium, nitrate, iodine-129, and cobalt-60 also were observed in some downgradient wells. Phase I assessment, allowed under 40 CFR 265, provides the owner-operator of a facility with the opportunity to show that the observed contamination has a source other than the regulated unit. For this Phase I assessment, PNNL evaluated available information on groundwater chemistry and past waste management practices in the vicinity of WMAs T and TX-TY. Background contaminant concentrations in the vicinity of WMAs T and TX-TY are the result of several overlapping contaminant plumes resulting from past-practice waste disposal operations. This background has been used as baseline for determining potential WMA impacts on groundwater.

Hodges, F.N.

1998-01-01T23:59:59.000Z

215

Gearbox Reliability Collaborative Update (Presentation)  

SciTech Connect

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

216

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

217

Definition: Reliability Coordinator | Open Energy Information  

Open Energy Info (EERE)

Coordinator Coordinator Jump to: navigation, search Dictionary.png Reliability Coordinator The entity that is the highest level of authority who is responsible for the reliable operation of the Bulk Electric System, has the Wide Area view of the Bulk Electric System, and has the operating tools, processes and procedures, including the authority to prevent or mitigate emergency operating situations in both nextday analysis and real-time operations. The Reliability Coordinator has the purview that is broad enough to enable the calculation of Interconnection Reliability Operating Limits, which may be based on the operating parameters of transmission systems beyond any Transmission Operator's vision.[1] Related Terms transmission lines, Bulk Electric System, transmission line

218

Innovative reliability allocation using the maximal entropy ordered weighted averaging method  

Science Journals Connector (OSTI)

Reliability allocation is one of the most important factors to consider when determining the reliability and competitiveness of a product. The feasibility-of-objectives (FOO) technique has become the current standard for assessing reliability designs ... Keywords: Average weighting allocation method, Feasibility-of-objectives technique, Maximal entropy ordered weighted averaging, Reliability allocation

Yung-Chia Chang; Kuie-Hu Chang; Cheng-Shih Liaw

2009-11-01T23:59:59.000Z

219

Reliability centered maintenance for substation equipment  

SciTech Connect

This paper is a collection of training materials on the principles and implementation of reliability centered maintenance. The main areas discussed in this presentation are organized as follows: RCM principles and concepts; RCM tools, resources and methods; overview of the RCM process; example RCM application; living PM program; RCM implementation experience.

NONE

1996-08-01T23:59:59.000Z

220

Reliable quantum computers  

Science Journals Connector (OSTI)

...the performance of a useful quantum computer will need to be. And that in itself...by the Department of Energy under Grant No. DE- FG03-92-ER40701, and...Lond. A (1998) Reliable quantum computers 409 References Aharonov, D. & Ben-Or...

1998-01-01T23:59:59.000Z

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

Wood Durability Service & Reliability  

E-Print Network (OSTI)

Wood Durability Laboratory Service & Reliability Equipment & Facilities Field sites for AWPA E-7 (mold) tests. Wood weathering facilities. Lab-scale pressure treating cylin- ders. X-ray preservative analyzer (Oxford Twin-X). State-of-the-art facilities for wood and plastics composites manufacturing

222

Remedial investigation report on waste area grouping 5 at Oak Ridge National Laboratory, Oak Ridge, Tennessee. Volume 4, Appendix C, Risk assessment  

SciTech Connect

Waste Area Grouping (WAG) 5 is part of Oak Ridge National Laboratory (ORNL) and is located on the United States Department of Energy`s Oak Ridge Reservation (DOE-ORR). The site lies southeast of Haw Ridge in Melton Valley and comprises approximately 32 ha (80 ac) [12 ha (30 ac) of forested area and the balance in grassed fields]. Waste Area Grouping 5 consists of several contaminant source areas for the disposal of low-level radioactive, transuranic (TRU), and fissile wastes (1959 to 1973) as well as inorganic and organic chemical wastes. Wastes were buried in trenches and auger holes. Radionuclides from buried wastes are being transported by shallow groundwater to Melton Branch and White Oak Creek. Different chemicals of potential concern (COPCs) were identified (e.g., cesium-137, strontium-90, radium-226, thorium-228, etc.); other constituents and chemicals, such as vinyl chloride, bis(2-ethylhexyl)phthalate, trichloroethene, were also identified as COPCs. Based on the results of this assessment contaminants of concern (COCs) were subsequently identified. The objectives of the WAG 5 Baseline Human Health Risk Assessment (BHHRA) are to document the potential health hazards (i.e., risks) that may result from contaminants on or released from the site and provide information necessary for reaching informed remedial decisions. As part of the DOE-Oak Ridge Operations (ORO), ORNL and its associated waste/contamination sites fall under the auspices of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), also known as Superfund under the Superfund Amendments and Reauthorization Act (SARA). The results of the BHHRA will (1) document and evaluate risks to human health, (2) help determine the need for remedial action, (3) determine chemical concentrations protective of current and future human receptors, and (4) help select and compare various remedial alternatives.

NONE

1995-09-01T23:59:59.000Z

223

North American Electric Reliability Corporation Interconnections...  

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

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

224

Reliability of Electrical Interconnects (Presentation)  

SciTech Connect

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

Devoto, D.

2014-06-01T23:59:59.000Z

225

Assessment  

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

Genetic Genetic Variability of Cell Wall Degradability for the Selection of Alfalfa with Improved Saccharification Efficiency Marc-Olivier Duceppe & Annick Bertrand & Sivakumar Pattathil & Jeffrey Miller & Yves Castonguay & Michael G. Hahn & Réal Michaud & Marie-Pier Dubé # Her Majesty the Queen in Right of Canada 2012 Abstract Alfalfa (Medicago sativa L.) has a high potential for sustainable bioethanol production, particularly because of its low reliance on N fertilizer. We assessed near-infrared reflec- tance spectroscopy (NIRS) as a high-throughput technique to measure cell wall (CW) degradability in a large number of lignified alfalfa stem samples. We also used a powerful immu- nological approach, glycome profiling, and chemical analyses to increase our knowledge of the composition of CW poly- saccharides of alfalfa stems with various levels

226

Cultural Resource Assessment of the Test Area North Demolition Landfill at the Idaho National Engineering and Environmental Laboratory  

SciTech Connect

The proposed new demolition landfill at Test Area North on the Idaho National Engineering and Environmental Laboratory (INEEL) will support ongoing demolition and decontamination within the facilities on the north end of the INEEL. In June of 2003, the INEEL Cultural Resource Management Office conducted archival searches, field surveys, and coordination with the Shoshone-Bannock Tribes to identify all cultural resources that might be adversely affected by the project and to provide recommendations to protect those listed or eligible for listing on the National Register of Historic Places. These investigations showed that landfill construction and operation would affect two significant cultural resources. This report outlines protective measures to ensure that these effects are not adverse.

Brenda R. Pace

2003-07-01T23:59:59.000Z

227

A tiered approach for the human health risk assessment for consumption of vegetables from with cadmium-contaminated land in urban areas  

SciTech Connect

Consumption of vegetables that are grown in urban areas takes place worldwide. In developing countries, vegetables are traditionally grown in urban areas for cheap food supply. In developing and developed countries, urban gardening is gaining momentum. A problem that arises with urban gardening is the presence of contaminants in soil, which can be taken up by vegetables. In this study, a scientifically-based and practical procedure has been developed for assessing the human health risks from the consumption of vegetables from cadmium-contaminated land. Starting from a contaminated site, the procedure follows a tiered approach which is laid out as follows. In Tier 0, the plausibility of growing vegetables is investigated. In Tier 1 soil concentrations are compared with the human health-based Critical soil concentration. Tier 2 offers the possibility for a detailed site-specific human health risk assessment in which calculated exposure is compared to the toxicological reference dose. In Tier 3, vegetable concentrations are measured and tested following a standardized measurement protocol. To underpin the derivation of the Critical soil concentrations and to develop a tool for site-specific assessment the determination of the representative concentration in vegetables has been evaluated for a range of vegetables. The core of the procedure is based on Freundlich-type plant–soil relations, with the total soil concentration and the soil properties as variables. When a significant plant–soil relation is lacking for a specific vegetable a geometric mean of BioConcentrationFactors (BCF) is used, which is normalized according to soil properties. Subsequently, a ‘conservative’ vegetable-group-consumption-rate-weighted BioConcentrationFactor is calculated as basis for the Critical soil concentration (Tier 1). The tool to perform site-specific human health risk assessment (Tier 2) includes the calculation of a ‘realistic worst case’ site-specific vegetable-group-consumption-rate-weighted BioConcentrationFactor. -- Highlights: • A scientifically-based and practical procedure has been developed for assessing the human health risks from the consumption of vegetables. • Uptake characteristics of cadmium in a series of vegetables is represented by a vegetable-group-consumption-rate-weighted BioConcentrationFactor. • Calculations and measurement steps are combined.

Swartjes, Frank A., E-mail: frank.swartjes@rivm.nl; Versluijs, Kees W.; Otte, Piet F.

2013-10-15T23:59:59.000Z

228

Substation Configuration Reliability 1 Reliability of Substation Configurations  

E-Print Network (OSTI)

Substation Configuration Reliability 1 Reliability of Substation Configurations Daniel Nack, Iowa substation, it still contains what could be described as weak points or points of failure that would lead to loss of load. By knowing how to calculate the reliability of different substation configurations

McCalley, James D.

229

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; for the most part, ambiguities arise from variation in the distribution of forecast probabilities and from

Stevenson, Paul

230

Reliability Calculus: A Theoretical Framework To Analyze Communication Reliability  

E-Print Network (OSTI)

distribution function (CDF) of the message delays can be used as a metric to infer communication reliability. Note that the communication reliability (end-to-end delay distribution) depends on the delay-to-end delay distribution over possible routes and under different protocols to provide reliability or quality

Liu, Xue

231

A Monte Carlo tool for multi-node reliability evaluation  

E-Print Network (OSTI)

-Area Reliability Program(NARP) is based on the random sampling of generator and transmission line status for each hour. Monte Carlo Approach for Estimating Contingency Statistics along with the Evaluation Subroutine(MACS-ES) advances the generation...

Thalasila, Chander Pravin

2012-06-07T23:59:59.000Z

232

Fundamentals of Structural Reliability Theory  

Science Journals Connector (OSTI)

Structural reliability analysis differs in many important ways from reliability analysis as practised in, for example, the electronics and aero-space industries, in spite of the fact that the underlying probab...

Palle Thoft-Christensen Ph. D.…

1982-01-01T23:59:59.000Z

233

FIELD RELIABILITY OF ELECTRONIC SYSTEMS  

E-Print Network (OSTI)

: ELECTRONIC EQUIPMENT; FAILURES; RELIABILITY; RISK ANALYSIS; SYSTEM ANALYSIS UDC: 621.38.004.64 ISBN 87 Predicted and Observed Reliability 16 3.3. Source 3 16 3.3.1. Description (Reactor Gamma Monitor) 16 3I Ww i 1 i FIELD RELIABILITY OF ELECTRONIC SYSTEMS wcwotoias R I S 0 - M - 2 4 1 8 An analytical

234

Testing for PV Reliability (Presentation)  

SciTech Connect

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

235

Environmental Assessments (EA) | Department of Energy  

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

August 2, 2010 August 2, 2010 EA-1729: Final Environmental Assessment Removal Actions At The Technical Area III Classified Waste Landfill, Sandia National Laboratories, New Mexico July 1, 2010 EA-1743: Final Environmental Assessment Air Products And Chemicals, Inc. Waste Energy Project at the AK Steel Corporation Middletown Works, Middletown, Ohio July 1, 2010 EA-1740: Final Environmental Assessment Thermal Energy Corporation Combined Heat And Power Project, Houston, Texas July 1, 2010 EA-1698: Final Environmental Assessment Baldwin Wind Energy Center July 1, 2010 EA-1696: Final Environmental Assessment Pantex Renewable Energy Project June 25, 2010 EA-1801: Final Environmental Impact Granite Reliable Power Wind Project, Coos County, New Hampshire June 16, 2010 EA-1741: Draft Environmental Assessment

236

2014 Annual Planning Summary for the Office of Electricity and Energy Reliability  

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

The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2014 and 2015 within the Office of Electricity and Energy Reliability.

237

2011 Annual Planning Summary for Electricity Delivery and Energy Reliability (OE)  

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

The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2011 and 2012 within the Office of Electricity Delivery and Energy Reliability (OE).

238

EA-1633: Final Environmental Assessment | Department of Energy  

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

EA-1633: Final Environmental Assessment EA-1633: Final Environmental Assessment EA-1633: Final Environmental Assessment Green Mountain Reservoir Substitution and Power Interference Agreements In response to a request from Colorado Springs Utilities (Springs Utilities), the Bureau of Reclamation (Reclamation), an agency of the Department of the Interior, is considering entering into a Green Mountain Reservoir Substitution Agreement with Springs Utilities and a Power Interference Agreement with Springs Utilities and Western Area Power Administration (WAPA). The execution of the proposed agreements would allow Springs Utilities to provide a reliable source of municipal water to the citizen owners and customers of Springs Utilities. DOE/EA-1633: Environmental Assessment for Green Mountain Reservoir

239

Euro Working Group on Transportation 2014 Isolating Different Factors Affecting Travel Time Reliability in an  

E-Print Network (OSTI)

distribution, differently according to the lane. As reliability is based on the percentiles (and not only and tre results are presented in this paper. Keywords: assessment; travel time; reliability;percentile;distribution Reliability in an Observational Before/After Study Neïla Bhouri*, Maurice Aron IFSTTAR,COSYS/GRETTIA, 14-20 bd

Boyer, Edmond

240

Transmission Reliability | Department of Energy  

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

Transmission Reliability Transmission Reliability Transmission Reliability Modernizing America's electricity infrastructure is one of the U.S. Department of Energy's top priorities. The DOE Strategic Plan states that today's electric grid needs to be more efficient, reliable, and secure. A modern, smarter electric grid may save consumers money, help our economy run more efficiently, allow rapid growth in renewable energy sources, and enhance energy reliability. The Department's research into a variety of tools that will improve advanced system monitoring, visualization, control, operations, and market structure will ultimately modernize the electricity transmission infrastructure to ease congestion, allow for increases in demand, and provide a greater degree of security. The Transmission Reliability Program is aligned with this strategic plan

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

2013 Transmission Reliability Program Peer Review | Department of Energy  

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

Transmission Reliability Program Peer Review Transmission Reliability Program Peer Review 2013 Transmission Reliability Program Peer Review The Transmission Reliability Program Peer Review included six sessions over 2 days on June 27 - 28, 2013. Presentations are available through the individual session links. The agenda and introduction by Joe Eto, LBNL, are available below. Day 1: June 27 Session I Baselining Studies and Analysis, Bharat Bhargava, EPG Baselining Studies and Analysis, Brett Amidan, PNNL Synchrophasor Standards Support and Development, Ken Martin, EPG Session II Advanced Synchrophasor Metrology, Stan Hadley, ORNL GPS Issue Management, Mark Buckner, ORNL Technology Assessment for Next Generation PMU, Mark Buckner, ORNL Session III Measurement-Based Stability Assessment, Dan Trudnowski, U. Montana

242

The design of a reliable reputation system  

E-Print Network (OSTI)

a peer reliability metric based on the distribution ofa higher reliability score. The most reliable distribution,distribution for the Sybil colluder and a sharp drop in its reliability

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

2010-01-01T23:59:59.000Z

243

2013 Reliability & Markets Peer Review - Day 1 Presentations | Department  

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

2013 Reliability & Markets Peer Review - Day 1 Presentations 2013 Reliability & Markets Peer Review - Day 1 Presentations 2013 Reliability & Markets Peer Review - Day 1 Presentations The Transmission Reliability R&D Reliability & Markets Peer Review included 6 sessions over 2 days on August 6 - 7, 2013. Presentations from Day 1 (Sessions I through IV) are available below. Session I: Ben Hobbs (Johns Hopkins), Kameshwar Poolla (UC Berkeley) Session II: Ray Zimmerman (Cornell), Hsiao-Dong Chiang (Cornell) Session III: Shmuel Oren (UC Berkeley), Dan Tylavsky (U Arizona), Tom Overbye (U Illinois) Session IV: Lindsay Anderson (Cornell), HyungSeon Oh (Cornell) 2013 R&M Peer Review - Assessing Transmission Investments Under Uncertainty - Ben Hobbs, Johns Hopkins 2013 R&M Peer Review - Coordinated Aggregation of Distributed Energy

244

2012 Reliability & Markets Peer Review - Full Presentations | Department of  

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

Reliability & Markets Peer Review - Full Presentations Reliability & Markets Peer Review - Full Presentations 2012 Reliability & Markets Peer Review - Full Presentations The Transmission Reliability R&D Reliability & Markets Peer Review included 11 presentations over 2 days on August 7 - 8, 2012 at Cornell University in Ithaca, NY. The full presentations are available below. Presentation summaries are also available. 2012 R&M Peer Review - Transmission Investment Assessment Under Uncertainty - Ben Hobbs 2012 R&M Peer Review - Renewable Integration Through Risk-Limiting Dispatch - Pravin Varaiya 2012 R&M Peer Review - Development and Testing of New Tools - Ray Zimmerman 2012 R&M Peer Review - Commercialization of the SuperOPF Framework - Hsiao-Dong Chiang 2012 R&M Peer Review - Essence of Structure Preserving Network Reductions -

245

2012 Reliability & Markets Peer Review | Department of Energy  

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

Reliability & Markets Peer Review Reliability & Markets Peer Review 2012 Reliability & Markets Peer Review The Transmission Reliability R&D Reliability & Markets Peer Review included 11 presentations over 2 days on August 7 - 8, 2012 at Cornell University in Ithaca, NY. Presentations and summaries are available through the links and the agenda is included below. Summaries | Full Presentations Day 1: August 7 Transmission Investment Assessment Under Uncertainty About Fuel Prices, Technology, Renewables Penetration and Market Responses Using a Multi-State Stochastic Model Approach with Recourse Renewable Integration Through Risk-Limiting Dispatch and Distributed Resource Aggregations Development and Testing of New Tools Commercialization of the SuperOPF Framework: Phase 2 Essence of Structure Preserving (ESP) Network Reductions for

246

Reliability and component importance analysis of substation automation systems  

Science Journals Connector (OSTI)

This paper aims to present a comprehensive technique to quantitatively assess the reliability of substation automation systems. The technique is based on the tie-sets methodology. In order to demonstrate the application of the proposed technique, a variety of substation automation architectures is first introduced. The associated reliability block diagrams as well as the exact system reliability are then given. The impacts and the degree of importance of various components on the reliability of substation automation systems are presented. Two suitable measures of importance are selected. The first is the Birnbaum’s measure used to determine the bottleneck of the system reliability. The second measure uses criticality importance to diagnose failures and generating repair or inspection checklists.

Hamze Hajian-Hoseinabadi

2013-01-01T23:59:59.000Z

247

North American Electric Reliability Corporation Interconnections...  

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

Interconnections North American Electric Reliability Corporation Interconnections Map of the North American Electric Reliability Corporation Interconnection showing the Eastern,...

248

NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance...  

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

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

249

Thermoelectric Mechanical Reliability | Department of Energy  

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

Thermoelectric Mechanical Reliability Thermoelectric Mechanical Reliability 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting,...

250

Thermoelectric Mechanical Reliability | Department of Energy  

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

Thermoelectric Mechanical Reliability Thermoelectric Mechanical Reliability 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

251

NREL: Photovoltaics Research - Performance and Reliability R&D  

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

Research Research Search More Search Options Site Map Photo of Photovoltaic Solar Panels. The focus of Photovoltaic (PV) Reliability Research and Development (R&D) at NREL is to improve PV technologies. Modules and systems are tested for long-term performance and stressed in the field and with accelerated testing equipment, all to find R&D solutions to improve PV reliability. Learn about working with us. Help us improve PV systems by providing data in our PV Module Field Failure Database. PV Reliability R&D focuses on three primary areas: Real-time reliability R&D Long-term performance, reliability, and failures of PV components and systems are studied at NREL and through collaborations elsewhere. Analysis is performed to quantify long-term degradation, and

252

Fuzzy Failure Rate for Nuclear Power Plant Probabilistic Safety Assessment by Fault Tree Analysis  

Science Journals Connector (OSTI)

Reliability data is essential for a nuclear power plant probabilistic safety assessment by fault tree analysis ... a failure possibility-based reliability algorithm to assess nuclear event reliability data from f...

Julwan Hendry Purba; Jie Lu; Guangquan Zhang

2012-01-01T23:59:59.000Z

253

North American Electric Reliability Council Outage Announcement |  

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

Council Outage Announcement Council Outage Announcement North American Electric Reliability Council Outage Announcement Starting at about 4:11 p.m. EDT, major losses of electric load occurred in the northeastern United States and Canada in the Eastern Interconnection. Although the exact cause is not known at present, the outages are not the result of a terrorist attack. The areas most affected center around the Great Lakes: Michigan, Ohio, New York City, Ontario, Quebec, northern New Jersey, Massachusetts, and Connecticut. North American Electric Reliability Council Outage Announcement More Documents & Publications Blackout 2003: Final Report on the August 14, 2003 Blackout in the United States and Canada: Causes and Recommendations Blackout 2003: Blackout Final Implementation Report

254

2014 Reliability & Markets Peer Review  

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

The Transmission Reliability R&D Reliability & Markets Peer Review included 15 presentations over 2 days on August 5 - 6, 2014 at Cornell University in Ithaca, NY. Presentations are available through the links. The agenda and list of presentations are available to download.

255

NREL: Gearbox Reliability Collaborative - About the Gearbox Reliability  

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

About the Gearbox Reliability Collaborative About the Gearbox Reliability Collaborative Premature gearbox failures have a significant impact on the cost of wind farm operations. In 2007, NREL initiated the Gearbox Reliability Collaborative (GRC). The project combines field testing, dynamometer testing, analysis, modeling, condition monitoring, development of a failure database, and operations and maintenance research in a multi-pronged approach to determine why wind turbine gearboxes do not always achieve their expected design life-the time period that manufacturers expect them to last. The collaborative of manufacturers, owners, operators, researchers, and consultants focuses on gearbox modeling and testing and the development of a gearbox failure database. Collaborative members also investigate gearbox

256

Occurrence, fate and ecotoxicological assessment of pharmaceutically active compounds in wastewater and sludge from wastewater treatment plants in Chongqing, the Three Gorges Reservoir Area  

Science Journals Connector (OSTI)

Abstract The occurrence, removal and ecotoxicological assessment of 21 pharmaceutically active compounds (PhACs) including antibiotics, analgesics, antiepileptics, antilipidemics and antihypersensitives, were studied at four municipal wastewater treatment plants (WWTP) in Chongqing, the Three Gorges Reservoir Area. Individual treatment unit effluents, as well as primary and secondary sludge, were sampled and analyzed for the selected PhACs to evaluate their biodegradation, persistence and partitioning behaviors. PhACs were identified and quantified using high performance liquid chromatography/tandem mass spectrometry after solid-phase extraction. All the 21 analyzed PhACs were detected in wastewater and the target PhACs except acetaminophen, ibuprofen and gemfibrozil, were also found in sludge. The concentrations of the antibiotics and SVT were comparable to or even higher than those reported in developed countries, while the case of other target PhACs was opposite. The elimination of PhACs except acetaminophen was incomplete and a wide range of elimination efficiencies during the treatment were observed, i.e. from “negative removal” to 99.5%. The removal of PhACs was insignificant in primary and disinfection processes, and was mainly achieved during the biological treatment. Based on the mass balance analysis, biodegradation is believed to be the primary removal mechanism, whereas only about 1.5% of the total mass load of the target PhACs was removed by sorption. Experimentally estimated distribution coefficients (< 500 L/kg, with a few exceptions) also indicate that biodegradation/transformation was responsible for the removal of the target PhACs. Ecotoxicological assessment indicated that the environment concentrations of single compounds (including sulfadiazine, sulfamethoxazole, ofloxacin, azithromycin and erythromycin-H2O) in effluent and sludge, as well as the mixture of the 21 detected PhACs in effluent, sludge and receiving water had a significant ecotoxicological risk to algae. Therefore, further control of PhACs in effluent and sludge is required before their discharge and application to prevent their introduction into the environment.

Qing Yan; Xu Gao; You-Peng Chen; Xu-Ya Peng; Yi-Xin Zhang; Xiu-Mei Gan; Cheng-Fang Zi; Jin-Song Guo

2014-01-01T23:59:59.000Z

257

Final report on reliability and lifetime prediction.  

SciTech Connect

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

258

Reliability analysis of steel-containment strength  

SciTech Connect

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

259

Robust Design of Reliability Test Plans Using Degradation Measures.  

SciTech Connect

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

260

Is pelvic bone mineral content assessed through dual energy X-ray absorptionmetry an appropriate anatomical area for bone mass estimation in women?  

Science Journals Connector (OSTI)

Bibliographic references seem very controversill regarding the most appropriate anatomical area for bone mass estimation. Since some overlapping in the different bone mass measurements among normal and osteopo...

Prof. Dr. H. Rico; M. Revilla; E. R. Hernández; L. F. Villa…

1992-12-01T23:59:59.000Z

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

On the Fatigue Reliability of Hydroelectric Francis Runners  

Science Journals Connector (OSTI)

Abstract The reliability assessment of large rotating structures like hydroelectric Francis runners is often limited by our capacity to define a proper limit state combined with a relevant degradation model. In this paper, we propose that the proper limit state for fatigue reliability of such structures is the onset of high cycle fatigue (HCF). Based on this premise, a prior interval for our limit state based on available literature is presented. The prior assumptions are believed to be the first step toward validation of the applicability and suitability of the proposed model. The paper includes an overview of the theoretical background for reliability assessment of Francis turbine runners, the methodology used, and the results obtained from the information gathered from the available literature.

Martin Gagnon; Antoine Tahan; Philippe Bocher; Denis Thibault

2013-01-01T23:59:59.000Z

262

DAKOTA reliability methods applied to RAVEN/RELAP-7.  

SciTech Connect

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

263

Reliability and Functional Availability of HVAC Systems  

E-Print Network (OSTI)

This paper presents a model to calculate the reliability and availability of heating, ventilation and air conditioning systems. The reliability is expressed in the terms of reliability, maintainability and decision capability. These terms are a...

Myrefelt, S.

2004-01-01T23:59:59.000Z

264

Constructing Reliable Distributed Communication Systems with CORBA  

E-Print Network (OSTI)

Constructing Reliable Distributed Communication Systems with CORBA Silvano Maffeis Douglas C Communication software and distributed services for next- generation applications must be reliable, efficient model to support reliable data- and process- oriented distributed systems that communicate through syn

Schmidt, Douglas C.

265

Office of Electricity Delivery And Energy Reliability To Hold Technical  

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

Office of Electricity Delivery And Energy Reliability To Hold Office of Electricity Delivery And Energy Reliability To Hold Technical Conference On The Design Of Future Electric Transmission Office of Electricity Delivery And Energy Reliability To Hold Technical Conference On The Design Of Future Electric Transmission February 5, 2009 - 10:57am Addthis On March 4, 2009, the Department of Energy's Office of Electricity Delivery and Energy Reliability (OE) will conduct a technical conference in the Washington, DC area to discuss the design of future electric transmission. The technical conference will discuss the likely demand for future electric transmission and whether the development of conceptual alternative extra high voltage (EHV) systems would assist generation developers, State energy policy officials, utility planners, and other

266

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

267

Program Areas  

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

268

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

Energy Savers (EERE)

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

269

Electricity & Energy Reliability (WFP) | Department of Energy  

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

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....

270

ELECTRICITY DELIVERY AND ENERGY RELIABILITY Appropriation Overview  

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

ELECTRICITY DELIVERY AND ENERGY RELIABILITY Appropriation Overview Electricity Delivery and Energy Reliability (OE) drives electric grid modernization and resiliency in the energy...

271

Thermoelectric Mechanical Reliability | Department of Energy  

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

Mechanical Reliability Thermoelectric Mechanical Reliability 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

272

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

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

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

273

NSTB Summarizes Vulnerable Areas  

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

NSTB Summarizes Vulnerable Areas NSTB Summarizes Vulnerable Areas Commonly Found in Energy Control Systems Experts at the National SCADA Test Bed (NSTB) discovered some common areas of vulnerability in the energy control systems assessed between late 2004 and early 2006. These vulnerabilities ranged from conventional IT security issues to specific weaknesses in control system protocols. The paper "Lessons Learned from Cyber Security Assessments of SCADA and Energy Management Systems" describes the vulnerabilities and recommended strategies for mitigating them. It should be of use to asset owners and operators, control system vendors, system integrators, and third-party vendors interested in enhancing the security characteristics of current and future products.

274

DOE/EA-1528: Environmental Assessment for the Storage of Tritium-Producing Burnable Absorber RODs in K-Area Transfer Bay at the Savannah River Site (6/2/05)  

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

28 28 JUNE 2005 U. S. DEPARTMENT OF ENERGY SAVANNAH RIVER OPERATIONS OFFICE SAVANNAH RIVER SITE ENVIRONMENTAL ASSESSMENT FOR THE STORAGE OF TRITIUM-PRODUCING BURNABLE ABSORBER RODS IN K-AREA TRANSFER BAY AT THE SAVANNAH RIVER SITE DOE/EA-1528 ENVIRONMENTAL ASSESSMENT FOR THE STORAGE OF TRITIUM-PRODUCING BURNABLE ABSORBER RODS IN K-AREA TRANSFER BAY AT THE SAVANNAH RIVER SITE June 2005 U. S. DEPARTMENT OF ENERGY SAVANNAH RIVER OPERATIONS OFFICE SAVANNAH RIVER SITE This page is intentionally left blank ii TABLE OF CONTENTS Page 1.0 INTRODUCTION 1 1.1 Background 1 1.2 Purpose and Need for Action 2 2.0 PROPOSED ACTION AND ALTERNATIVES 2 2.1 Proposed Action 2 2.2 Alternatives to the Proposed Action 3

275

Electronic reliability estimation: how reliable are the results?  

Science Journals Connector (OSTI)

The development of Safety Critical Systems requires the compliance to several safety standards and regulations. Since, most of the times, human life is at stake, it is crucial to fully understand the behaviour of the system being developed in order to ... Keywords: MIL-Hdbk-217F, MTTF, estimation, reliability

Nuno Silva; Rui Lopes

2012-09-01T23:59:59.000Z

276

Electricity Reliability Council of Texas (ERCOT) | Open Energy Information  

Open Energy Info (EERE)

Electricity Reliability Council of Texas (ERCOT) Electricity Reliability Council of Texas (ERCOT) Jump to: navigation, search The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to 22 million Texas customers - representing 85 percent of the state's electric load and 75 percent of the Texas land area. As the independent system operator for the region, ERCOT schedules power on an electric grid that connects 40,000 miles of transmission lines and more than 550 generation units. ERCOT also manages financial settlement for the competitive wholesale bulk-power market and administers customer switching for 6.5 million Texans in competitive choice areas. News ERCOT gathers wind data from cellphone towers References ERCOT This article incorporates public domain material from the document:

277

Western Area Power Administration  

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

Loveland Area Projects November 29-30, 2011 2 Agenda * Overview of Western Area Power Administration * Post-1989 Loveland Area Projects (LAP) Marketing Plan * Energy Planning and Management Program * Development of the 2025 PMI Proposal * 2025 PMI Proposal * 2025 PMI Comment Period & Proposal Information * Questions 3 Overview of Western Area Power Administration (Western) * One of four power marketing administrations within the Department of Energy * Mission: Market and deliver reliable, renewable, cost-based Federal hydroelectric power and related services within a 15-state region of the central and western U.S. * Vision: Provide premier power marketing and transmission services Rocky Mountain Region (RMR) is one of five regional offices 4 Rocky Mountain Region

278

Assessment of Geothermal Resource Potential at a High-Priority Area on the Utah Testing and Training Range–South (UTTR–S)  

SciTech Connect

Field investigations conducted during 2011 support and expand the conclusion of the original Preliminary Report that discovery of a viable geothermal system is possible in the northwestern part of the Utah Testing and Training Range-South (UTTR-S), referred to henceforth as Focus Area 1. The investigations defined the southward extent of the Wendover graben into and near Focus Area 1, enhanced the understanding of subsurface conditions, and focused further geothermal exploration efforts towards the northwestern-most part of Focus Area 1. Specifically, the detailed gravity survey shows that the Wendover graben, first defined by Cook et al. (1964) for areas north of Interstate Highway 80, extends and deepens southwest-ward to the northwest corner of Focus Area 1. At its deepest point, the intersection with a northwest-trending graben there is favorable for enhanced permeability associated with intersecting faults. Processing and modeling of the gravity data collected during 2011 provide a good understanding of graben depth and distribution of faults bounding the graben and has focused the interest area of the study. Down-hole logging of temperatures in wells made available near the Intrepid, Inc., evaporation ponds, just north of Focus Area 1, provide a good understanding of the variability of thermal gradients in that area and corroborate the more extensive temperature data reported by Turk (1973) for the depth range of 300-500 m. Moderate temperature gradients in the northern part of the Intrepid area increase to much higher gradients and bottom-hole temperatures southeastward, towards graben-bounding faults, suggesting upwelling geothermal waters along those faults. Water sampling, analysis, and temperature measurements of Blue Lakes and Mosquito Willey's springs, on the western boundary of Focus Area 1, also show elevated temperatures along the graben-bounding fault system. In addition, water chemistry suggests origin of those waters in limestone rocks beneath the graben in areas with temperatures as high as 140 C (284 F). In conclusion, all of the field data collected during 2011 and documented in the Appendices of this report indicate that there is reasonable potential for a viable geothermal resource along faults that bound the Wendover graben. Prospects for a system capable of binary electrical generation are especially good, and the possibility of a flash steam system is also within reason. The next steps should focus on securing the necessary funding for detailed geophysical surveys and for drilling a set of temperature gradient wells to further evaluate the resource, and to focus deep exploration efforts in the most promising areas.

Richard P. Smith, PhD., PG; Robert P. Breckenridge, PhD.; Thomas R. Wood, PhD.

2012-04-01T23:59:59.000Z

279

Electricity Delivery and Energy Reliability  

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

The Office of Electricity Delivery and Energy Reliability (OE) drives electric grid modernization and resiliency in the energy infrastructure while working to enable innovation across the energy sector, empowering American consumers, and securing our energy future. The OE mission and the leadership role OE plays in the energy industry directly support the President's effort to accelerate the transformation of America's energy system

280

Producing reliable software: an experiment  

Science Journals Connector (OSTI)

A customer of high assurance software recently sponsored a software engineering experiment in which a small real-time software system was developed concurrently by two popular software development methodologies. One company specialized in the state-of-the-practice ... Keywords: capability maturity model, cleanroom certification, formal methods, software development methodologies, software engineering experiment, software process and product metrics, software reliability

Carol Smidts; Xin Huang; James C. Widmaier

2002-04-01T23:59:59.000Z

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

Reliability-based optimization using evolutionary algorithms  

Science Journals Connector (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 several mathematical approximations ... Keywords: Ditlevsen's bound, Pareto-optimal front, evolutionary multiobjective optimization, most probable point, reliability-based optimization, reliable front, system reliability

Kalyanmoy Deb; Shubham Gupta; David Daum; Jürgen Branke; Abhishek Kumar Mall; Dhanesh Padmanabhan

2009-10-01T23:59:59.000Z

282

Real Time Grid Reliability Management 2005  

SciTech Connect

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

283

DOE Human Reliability Program Removals Report 2004-2006  

SciTech Connect

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

284

EA-1177: Salvage/Demolition of 200 West Area, 200 East Area, and 300 Area  

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

7: Salvage/Demolition of 200 West Area, 200 East Area, and 7: Salvage/Demolition of 200 West Area, 200 East Area, and 300 Area Steam Plants, Richland, Washington EA-1177: Salvage/Demolition of 200 West Area, 200 East Area, and 300 Area Steam Plants, Richland, Washington SUMMARY This EA evaluates the environmental impacts for the proposal to salvage and demolish the 200 West Area, 200 East Area, and 300 Area steam plants and their associated steam distribution piping equipment, and ancillary facilities at the U.S. Department of Energy Hanford Site in Richland, Washington. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD October 21, 1996 EA-1177: Finding of No Significant Impact Salvage/Demolition of 200 West Area, 200 East Area, and 300 Area Steam Plants October 21, 1996 EA-1177: Final Environmental Assessment

285

Assessment of radionuclides in the soil of residential areas of the Chittagong metropolitan city, Bangladesh and evaluation of associated radiological risk  

Science Journals Connector (OSTI)

......periphery and the Bay of Bengal is on the west...situated beside the Bay of Bengal. Another site...lines). For the estimation of the activity...the assessment of radiation hazards associated...annual effective dose (H) to adults......

Quazi Muhammad Rashed-Nizam; Md. Mashiur Rahman; Masud Kamal; Mantazul Islam Chowdhury

2014-09-01T23:59:59.000Z

286

Geology of the McMillan Ranch in Mason, Texas: An Assessment of the Nature of Normal Faults in the Mason Area  

E-Print Network (OSTI)

is determined based upon the orientation of the subsidiary normal faults in its hanging wall. A detailed study of the geology of the McMillan Ranch and the surrounding area, including a geologic history of the area, geologic map and cross section..., and the pasture that was chosen for this study was best represented at a scale of 1:7,000. At such a large scale, it was necessary to recognize precisely where in the stratigraphic section the mapper was located, as some subsidiary faults were recognized...

Harper, Rebecca Anne

2011-10-21T23:59:59.000Z

287

Flexibility and reliability in long-term planning exercises dedicated to the electricity sector  

E-Print Network (OSTI)

Flexibility and reliability in long-term planning exercises dedicated to the electricity sector of these options. This paper focuses on the electricity sector and on problems of flexibility and reliability are assessed through the level of electrical losses they induced and a related cost. These approaches

Paris-Sud XI, Université de

288

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

SciTech Connect

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

289

Radioisotope thermoelectric generator reliability and safety  

SciTech Connect

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

290

Feasibility of Flow Cytometry for Measurements of Plasmodium falciparum Parasite Burden in Studies in Areas of Malaria Endemicity by Use of Bidimensional Assessment of YOYO-1 and Autofluorescence  

Science Journals Connector (OSTI)

...the hands of trained personnel. A cost/benefit analysis...study and all additional personnel involved; the children...technique to field site personnel, and quality checked...falciparum-malaria by in vivo selection of competent strains...area under the receiver operating characteristic, 0...

Joseph J. Campo; John J. Aponte; Augusto J. Nhabomba; Jahit Sacarlal; Iñigo Angulo-Barturen; María Belén Jiménez-Díaz; Pedro L. Alonso; Carlota Dobaño

2011-01-12T23:59:59.000Z

291

Transmission Reliability | Department of Energy  

Energy Savers (EERE)

design, long-term supply and transmission investment, renewable integration, demand response, and environmental impacts. Researchers use models and simulations to assess how...

292

Analysis of the validity of analytical models used for assessment of forty-five waste site areas: Subsurface flow and chemical transport  

SciTech Connect

Closure actions at 45 waste sites were analyzed using an analytical model. A quality assurance program, which consisted of (1) comparison to analytical solutions with different boundary conditions, (2) comparison of model results to measured concentrations, (3) comparison with layered numerical solutions, and (4) evaluation and sensitivity analysis of input data, suggests that this type of analysis is a reasonable screening tool. Boundary conditions and controlling processes, such as chemical speciation, must be properly identified when defining input parameters; also, transient models that account for unsaturated zone processes predict higher peak concentrations than steady-state models such as the EPA VHS model. Assessment of complex systems that have multiple flow paths, or studies of remedial actions (such as ground water withdrawal and treatment) may require numerical modeling to meet the required objectives. However, the quality assurance analysis for the subject waste sites indicates that analytical approximations are sufficiently accurate to make relative environmental assessments (e.g., prioritizing sites or assessing various closure actions).

Looney, B.B.; Fjeld, R.A.; Merrell, G.B.; Duffield, G.M.; Andrews, C.B.

1987-01-01T23:59:59.000Z

293

2013 Reliability & Markets Peer Review - Day 1 Presentations | Department  

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

1 Presentations 1 Presentations 2013 Reliability & Markets Peer Review - Day 1 Presentations The Transmission Reliability R&D Reliability & Markets Peer Review included 6 sessions over 2 days on August 6 - 7, 2013. Presentations from Day 1 (Sessions I through IV) are available below. Session I: Ben Hobbs (Johns Hopkins), Kameshwar Poolla (UC Berkeley) Session II: Ray Zimmerman (Cornell), Hsiao-Dong Chiang (Cornell) Session III: Shmuel Oren (UC Berkeley), Dan Tylavsky (U Arizona), Tom Overbye (U Illinois) Session IV: Lindsay Anderson (Cornell), HyungSeon Oh (Cornell) 2013 R&M Peer Review - Assessing Transmission Investments Under Uncertainty - Ben Hobbs, Johns Hopkins 2013 R&M Peer Review - Coordinated Aggregation of Distributed Energy Resources - Kameshwar Poolla, UC Berkeley

294

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

E-Print Network (OSTI)

compaction reservoirs typically are composed of unconsolidated, overpressured rocks such as chalk, diatomite, and sandstone. Pore pressure depletion increases effective stress, which is the rock matrix stress pushing upward against overburden pressure...

Chantose, Prasongsit

2012-02-14T23:59:59.000Z

295

Preliminary assessment of the geologic setting, hydrology, and geochemistry of the Hueco Tanks geothermal area, Texas and New Mexico. Geological Circular 81-1  

SciTech Connect

The Hueco Tanks geothermal area contains five known but now inactive hot wells (50/sup 0/ to 71/sup 0/C). The area trends north-south along the east side of Tularosa-Hueco Bolson astride the Texas-New Mexico border approximately 40 km northeast of El Paso. Because of its proximity to El Paso, geothermal water in the Hueco Tanks area could be a significant resource. Hueco Bolson is an asymmetric graben. Greatest displacement along boundary faults is on the west side adjacent to the Franklin Mountains. Faults, probably with less displacement, also form an irregular boundary on the east side of the bolson. Several probable faults may allow the rise of thermal waters from depth. Ground water in the central part of Hueco Bolson flows southward to the Rio Grande. However, four of the five hot wells occur in a ground-water trough along the eastern margin of the bolson. The trough may be bounded by one of the postulated faults serving as a barrier to ground-water flow. Data on permeability of potential reservoir rocks, including basin fill and fractured bedrock, suggest that they may be sufficiently permeable for development of geothermal water. The concentration of dissolved solids in the geothermal waters varies from 1100 to at least 12,500 mg/L, but most waters show high concentrations. They are Na-Cl-(SO/sub 4/) waters similar in composition to nonthermal waters in basin fill. The composition probably results from contact with evaporite deposits either in basin fill or in Paleozoic bedrock. Shallow reservoirs reach maximum temperatures of about 80/sup 0/ to 110/sup 0/C. Available data are too limited to evaluate adequately the resource potential of geothermal water in the Hueco Tanks area. A complete exploration program, including geological, hydrological, and geochemical investigation, is recommended.

Henry, C.D.; Gluck, J.K.

1981-01-01T23:59:59.000Z

296

Preliminary assessment of the geologic setting, hydrology, and geochemistry of the Hueco Tanks geothermal area, Texas and New Mexico. Geological Circular 81-1  

SciTech Connect

The Hueco Tanks geothermal area contains five known but now inactive hot wells (50/sup 0/ to 71/sup 0/C). The area trends north-south along the east side of Tularosa-Hueco Bolson astride the Texas-New Mexico border approximately 40 km northeast of El Paso. Because of its proximity to El Paso, geothermal water in the Hueco Tanks area could be a significant resource. Hueco Bolson is an asymmetric graben. Greatest displacement along boundary faults is on the west side adjacent to the Franklin Mountains. Faults, probably with less displacement, also form an irregular boundary on the east side of the bolson. Several probable faults may allow the rise of thermal waters from depth. Ground water in the central part of Hueco Bolson flows southward to the Rio Grande. However, four of the five hot wells occur in a ground-water trough along the eastern margin of the bolson. The trough may be bounded by one of the postulated faults serving as a barrier to ground-water flow. Data on permeability of potential reservoir rocks, including basin fill and fractured bedrock, suggest that they may be sufficiently permeable for development of geothermal water. The concentration of dissolved solids in the geothermal waters varies from 1100 to at least 12,500 mg/L, but most waters show high concentrations. They are Na-Cl-(SO/sub 4/) waters similar in composition to nonthermal waters in basin fill. The composition probably results from contact with evaporite deposits either in basin fill or in Paleozoic bedrock. Shallow reservoirs reach maximum temperatures of about 80/sup 0/ to 110/sup 0/C. Available data are too limited to evaluate adequately the resource potential of geothermal water in the Hueco Tanks area.

Henry, C.D.; Gluck, J.K.

1981-01-01T23:59:59.000Z

297

Reliability-Centered Maintenance | Department of Energy  

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

Reliability-Centered Maintenance Reliability-Centered Maintenance Reliability-Centered Maintenance October 7, 2013 - 9:48am Addthis Reliability-centered maintenance leverages the same practices and technologies of predictive maintenance. The difference is that reliability-centered maintenance recognizes that: Equipment design and operations differ Different equipment has different probabilities of failure All equipment is not of equal importance to facility operations Facilities have limited financial and personnel resources. While reliability-centered maintenance relies on predictive maintenance practices and technologies, it also recognizes that maintenance on inexpensive and/or unimportant equipment may be better served by a reactive or predictive maintenance approach. Each of the aforementioned factors are

298

NREL: Wind Research - Gearbox Reliability Collaborative  

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

Research Research Search More Search Options Site Map Premature gearbox failures have a significant impact on the cost of wind farm operations. In 2007, NREL initiated the Gearbox Reliability Collaborative (GRC). The project combines analysis, field testing, dynamometer testing, condition monitoring, and the development and population of a gearbox failure database in a multi-pronged approach to determine why many wind turbine gearboxes do not achieve their expected design life-the time period that manufacturers expect them to last. Read about: The Gearbox Reliability Collaborative Gearbox Reliability Collaborative Projects Gearbox Reliability Collaborative Research and Development Working with the Gearbox Reliability Collaborative Gearbox Reliability Collaborative Publications

299

Office of Electricity Delivery and Energy Reliability FY 2010 Budget |  

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

FY 2010 FY 2010 Budget Office of Electricity Delivery and Energy Reliability FY 2010 Budget The FY 2010 Office of Electricity Delivery and Energy Reliability (OE) budget request is $208.0 million, $71.0 million more than the FY 2009 Appropriation. This increase reflects increased investments in research and development, particularly in energy storage, smart grid technologies, and cyber security areas. OE will also establish one of the Department's multi-disciplinary Energy Innovation Hubs (Hubs) that specifically focuses on Grid Materials, Devices, and Systems. The FY 2010 budget proposes a budget structure change to better align with the Department's priorities to establish a clean, secure energy future. Office of Electricity Delivery and Energy Reliability FY 2010 Budget

300

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

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

Biological monitoring of Upper Three Runs Creek, Savannah River Plant, Aiken County, South Carolina. Final report on macroinvertebrate stream assessments for F/H area ETF effluent discharge, July 1987--February 1990  

SciTech Connect

In anticipation of the fall 1988 start up of effluent discharges into Upper Three Creek by the F/H Area Effluent Treatment Facility of the Savannah River Site, Aiken, SC, a two and one half year biological study was initiated in June 1987. Upper Three Runs Creek is an intensively studied fourth order stream known for its high species richness. Designed to assess the potential impact of F?H area effluent on the creek, the study includes qualitative and quantitative macroinvertebrate stream surveys at five sites, chronic toxicity testing of the effluent, water chemistry and bioaccumulation analysis. This final report presents the results of both pre-operational and post-operational qualitative and quantitative (artificial substrate) macroinvertebrate studies. Six quantitative and three qualitative studies were conducted prior to the initial release of the F/H ETF effluent and five quantitative and two qualitative studies were conducted post-operationally.

Specht, W.L.

1991-10-01T23:59:59.000Z

302

Understanding Bulk Power Reliability: The Importance of Good Data and A  

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

Understanding Bulk Power Reliability: The Importance of Good Data and A Understanding Bulk Power Reliability: The Importance of Good Data and A Critical Review of Existing Sources Title Understanding Bulk Power Reliability: The Importance of Good Data and A Critical Review of Existing Sources Publication Type Report Year of Publication 2012 Authors Fisher, Emily, Joseph H. Eto, and Kristina Hamachi LaCommare Pagination 11 Date Published 01/2012 Publisher LBNL City Berkeley Keywords electricity markets and policy group, energy analysis and environmental impacts department, power system reliability, power system reliability metrics, transmission system reliability Abstract Bulk power system reliability is of critical importance to the electricity sector. Complete and accurate information on events affecting the bulk power system is essential for assessing trends and efforts to maintain or improve reliability. Yet, current sources of this information were not designed with these uses in mind. They were designed, instead, to support real-time emergency notification to industry and government first-responders. This paper reviews information currently collected by both industry and government sources for this purpose and assesses factors that might affect their usefulness in supporting the academic literature that has relied upon them to draw conclusions about the reliability of the US electric power system.

303

Modelling in industrial maintenance and reliability  

Science Journals Connector (OSTI)

......of modelling the reliability of wind turbines and some critical subsystems from...change, through the years, in wind turbines reliability. There were major...research on determining optimal maintenance policies for deteriorating systems......

Wenbin Wang

2010-10-01T23:59:59.000Z

304

Reliability analysis reloaded: how will we survive?  

Science Journals Connector (OSTI)

In safety related applications and in products with long lifetimes reliability is a must. Moreover, facing future technology nodes of integrated circuit device level reliability may decrease, i.e., counter-measures have to be taken to ensure product ...

Robert Aitken; Görschwin Fey; Zbigniew T. Kalbarczyk; Frank Reichenbach; Matteo Sonza Reorda

2013-03-01T23:59:59.000Z

305

Reliability analysis for Atucha II reactor protection system signals  

Science Journals Connector (OSTI)

Atucha II is a 745 MW Argentine Power Nuclear Reactor constructed by ENACE SA, Nuclear Argentine Company for Electrical Power Generation and SIEMENS AG KWU, Erlangen, Germany. A preliminary modular logic analysis of RPS (Reactor Protection System) signals was performed by means of the well known Swedish professional risk and reliability software named Risk-Spectrum taking as a basis a reference signal coded as JR17ER003 which command the two moderator loops valves. From the reliability and behavior knowledge for this reference signal folloos an estimation of the reliability for the other 97 RPS signals. Because the preliminary character of this analysis Main Important Measures are not performed at this stage. Reliability is by the statistic value named unavailability predicted. The scope of this analysis is restricted from the measurement elements to the RPS buffer outputs. In the present context only one redundancy is analyzed so in the Instrumentation and Control area there no CCF (Common Cause Failures) present for signals. Finally those unavailability values could be introduced in the failure domain for the posterior complete Atucha II reliability analysis which includes all mechanical and electromechanical features. Also an estimation of the spurious frequency of RPS signals defined as faulty by no trip is performed.

Jose Luis Roca

1996-01-01T23:59:59.000Z

306

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.

307

Human Reliability Analysis for Small Modular Reactors  

SciTech Connect

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

308

Geothermal Areas | Open Energy Information  

Open Energy Info (EERE)

Geothermal Areas Geothermal Areas Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Areas Geothermal Areas are specific locations of geothermal potential (e.g., Coso Geothermal Area). The base set of geothermal areas used in this database came from the 253 geothermal areas identified by the USGS in their 2008 Resource Assessment.[1] Additional geothermal areas were added, as needed, based on a literature search and on projects listed in the GTP's 2011 database of funded projects. Add.png Add a new Geothermal Resource Area Map of Areas List of Areas Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":2500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

309

Risk assessment of soil-based exposures to plutonium at experimental sites located on the Nevada Test Site and adjoining areas  

SciTech Connect

In the late 1950s and early 1960s, a series of tests was conducted at or near the Nevada Test Site to study issues involving plutonium-bearing devices. These tests resulted in the dispersal of about 5 TBq of {sup 239,240}Pu on the surficial soils at the test locations. Access to the sites is strictly controlled; therefore, it does not constitute a threat to human health at the present time. However, because the residual {sup 239} Pu decays slowly (half-life of 24,110 y), the sites could indeed represent a long-term hazard if they are not remediated and if institutional controls are lost. To investigate the magnitude of the potential health risks for this no-remediation case, we defined three basic exposure scenarios that could bring individuals in contact with {sup 239,240}Pu at the sites: (1) a resident living in a subdivision located at a test site, (2) a resident farmer, and (3) a worker at a commercial facility. Our screening analyses indicated that doses to organs are dominated by the intemal deposition of Pu via the inhalation pathway, and thus our risk assessment focused on those factors that affect inhalation exposures and associated doses, including inhalation rates, activity patterns, tenure at a residence or occupation, indoor/outdoor air relationships, and resuspension outdoors. Cancer risks were calculated as a function of lifetime cumulative doses to the key target organs (i.e., bone surface, liver, and lungs) and risk factors for those organs. Uncertainties in the predicted cancer risks were analyzed using Monte-Carlo simulations of the probability distributions used to represent assessment parameters. The principal sources of uncertainty in the estimated risks were population mobility, the relationship between indoor and outdoor contaminant levels, and the dose and risk factors for bone, liver, and lung.

Layton, D.W.; Anspaugh, L.R.; Bogen, K.T.; Straume, T.

1993-06-01T23:59:59.000Z

310

Reliability Considerations from Integration of Smart Grid  

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

Considerations Considerations from the Integration of Smart Grid 116-390 Village Blvd., Princeton, NJ 08540 609.452.8060 | 609.452.9550 fax www.nerc.com the reliability of the to ensure bulk power system December 2010 (This page intentionally left blank) to ensure the reliability of the bulk power system Reliability Considerations of Integration of Smart Grid i

311

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.

312

SAFETY AND RELIABILITY ANALYSIS OF NUCLEAR REACTORS  

Science Journals Connector (OSTI)

Abstract A survey of the various aspects of safety and reliability analysis of nuclear reactors is presented with particular emphasis on the interrelation between structural reliability and systems reliability. In reactor design this interrelation is of overriding importance since it is the task of the control, protective and containment systems to protect the mechanical system and the structure from accidental overloading.

T.A. JAEGER

1972-01-01T23:59:59.000Z

313

Bayesian Networks in Reliability Analysis Helge Langseth  

E-Print Network (OSTI)

Bayesian Networks in Reliability Analysis Helge Langseth Dept. Computer and Information Sciences Bayesian network (BN) models gain more and more popularity in reliability analysis. In this talk I reliability measures concerning a low pressure coolant injection system for a nuclear reactor (a problem

Langseth, Helge

314

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

315

Measuring Improved Reliability in Stochastic Systems  

E-Print Network (OSTI)

for such a path, this represents a better measure of the path's reliability. If the distribution were asymmetricMeasuring Improved Reliability in Stochastic Systems Jeremy Bradley \\Lambda Neil Davies y 30 June 1999 Abstract In this paper, we examine reliability of stochastic systems with specific application

Bradley, Jeremy

316

Reliability assessment of electrical power systems using genetic algorithms  

E-Print Network (OSTI)

of the dissertation, a GA based method for state sampling of composite generation-transmission power systems is introduced. Binary encoded GA is used as a state sampling tool for the composite power system network states. A linearized optimization load flow model...

Samaan, Nader Amin Aziz

2004-11-15T23:59:59.000Z

317

Reliability based assessment of FRP rehabilitation of reinforced concrete girders  

E-Print Network (OSTI)

2006]. The overall material resistance factor used in designused to characterize a material’s resistance to that type ofresistance and accounts for the variation in materials,

Wilcox, Patrick Carlo

2008-01-01T23:59:59.000Z

318

Assessing Reliability of Substation Spare Current Transformer System  

Science Journals Connector (OSTI)

This paper relates a case study involving Current Transformers (CTs) from the electrical system of the Companhia Hidro Elétrica do São Francisco (CHESF) in order to estimate the optimum number of spare. Two mo...

Cristiano G. de Melo; Renata Maria Cardoso R. de Souza…

2012-01-01T23:59:59.000Z

319

RELIABILITY OF WIND POWER FROM DISPERSED SITES: A PRELIMINARY ASSESSMENT  

E-Print Network (OSTI)

POWER FREQUENCY TO LOSS-OF-LOAD PROBABIL ITY The Basic Steps Optimization of Various Kinds WIND DATA

Kahn, E.

2011-01-01T23:59:59.000Z

320

Smart Grid Reliability Assessment Under Variable Weather Conditions.  

E-Print Network (OSTI)

??The needs of contemporary electric utility customers and expectations regarding energy supply require dramatic changes in the way energy is transmitted and delivered. A smart… (more)

Islam, Arif

2009-01-01T23:59:59.000Z

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

Reliability based assessment of FRP rehabilitation of reinforced concrete girders  

E-Print Network (OSTI)

and failure type, and acceptable risk. Resistance factorsfailure mechanism, and acceptable risk for that failureso that an acceptable level of risk is incorporated in

Wilcox, Patrick Carlo

2008-01-01T23:59:59.000Z

322

Probabilistic Wind Resource Assessment and Power Predictions  

E-Print Network (OSTI)

Probabilistic Wind Resource Assessment and Power Predictions Luca Delle Monache (lucadm Accurate wind resource assessment and power forecasts and reliable quanXficaXon of their uncertainty Mo5va5on · Power forecast: o Increase wind energy penetra

Firestone, Jeremy

323

Avian Monitoring and Risk Assessment at the Tehachapi Pass Wind Resource Area; Period of Performance: October 2, 1996--May 27, 1998  

SciTech Connect

Observations of dead raptors at the Altamont Pass Wind Resource Area triggered concerns on the parts of regulatory agencies, environmental/conservation groups, wildlife resource agencies, and wind and electric utility industries about possible impacts to birds from wind energy development. Bird fatality rates observed at most wind projects are not currently considered significant to individual bird species populations. Although many bird species have observed fatalities, raptors have received the most attention. The primary objective of this study was to estimate and compare bird utilization, fatality rates, and collision risk indices among factors such as bird taxonomic groups, turbine types, and turbine locations within the operating wind plant in the Tehachapi Pass WRA, in south-central California between October 1996 and May 1998.

Anderson, R.; Neumann, N.; Tom, J.; Erickson, W. P.; Strickland, M. D.; Bourassa, M.; Bay, K. J.; Sernka, K. J.

2004-09-01T23:59:59.000Z

324

Philosophy on Vulnerability Assessments  

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

capabilities/vat/assess/ capabilities/vat/assess/ ARGONNE NATIONAL LABORATORY, Nuclear Engineering Division, 9700 South Cass Ave., Argonne, IL Philosophy on Vulnerability Assessments Argonne Vulnerability Assessment Team Roger G. Johnston, Ph.D., CPP , 630-252-6168 1. There are a number of conventional tools for finding security vulnerabilities. These include security surveys, risk management, design basis threat, CARVER Method, Delphi Method, software vulnerability assessment tools, infrastructure modeling, etc. 2. These tools have some value, and indeed we have used them all. 3. Experience has shown, however, that these methods do not usually result in dramatic improvements to security, nor do they reliably predict catastrophic security incidents that

325

Risk & Reliability Analysis | Global and Regional Solutions  

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

Risk Analysis Group Risk Analysis Group Assessing Potential Hazards in Complex Systems Since the mid-1980s, a core group of Brookhaven scientists has been carrying out risk and reliability assessments of commercial nuclear power plants and other complex technological systems. These scientists - now called the Risk Analysis Group -- have also conducted reviews of risk assessments performed by others, such as utilities, to provide objective assessments to government regulators. Historically, the largest sponsor and customer of the group has been the US Nuclear Regulatory Commission (NRC) but staff members have also performed risk analyses for other domestic agencies such as the Department of Energy (DOE), the Federal Aviation Administration, and the New York State Department of Transportation.

326

ENVIRONMENTAL ASSESSMENT  

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

ENVIRONMENTAL ASSESSMENT ENVIRONMENTAL ASSESSMENT Construction and Operation of a Proposed Biogas Anaerobic Digestion Facility at an Ethanol Plant Western Plains Energy, LLC Grinnell Township (Oakley), Gove County, Kansas U. S. Department of Agriculture Rural Business Cooperative Service 1400 Independence Avenue, SW Washington, DC 20250-3225 August 29, 2011 Environmental Assessment Western Plains Energy, LLC Gove County, Kansas ii TABLE OF CONTENTS Section Page I. PROPOSAL DESCRIPTION AND NEED .................................................................... 1 II. PRIMARY BENEFICIARIES AND RELATED ACTIVITIES .................................. 2 III. DESCRIPTION OF THE PROPOSAL AREA .............................................................. 2

327

Utility View of Risk Assessment  

E-Print Network (OSTI)

This paper will address a utility perspective in regard to risk assessment, reliability, and impact on the utility system. Discussions will also include the critical issues for utilities when contracting for energy and capacity from cogenerators...

Bickham, J.

328

Software reliability models for critical applications  

SciTech Connect

This report presents the results of the first phase of the ongoing EG&G Idaho, Inc. Software Reliability Research Program. The program is studying the existing software reliability models and proposes a state-of-the-art software reliability model that is relevant to the nuclear reactor control environment. This report consists of three parts: (1) summaries of the literature review of existing software reliability and fault tolerant software reliability models and their related issues, (2) proposed technique for software reliability enhancement, and (3) general discussion and future research. The development of this proposed state-of-the-art software reliability model will be performed in the second place. 407 refs., 4 figs., 2 tabs.

Pham, H.; Pham, M.

1991-12-01T23:59:59.000Z

329

Software reliability models for critical applications  

SciTech Connect

This report presents the results of the first phase of the ongoing EG G Idaho, Inc. Software Reliability Research Program. The program is studying the existing software reliability models and proposes a state-of-the-art software reliability model that is relevant to the nuclear reactor control environment. This report consists of three parts: (1) summaries of the literature review of existing software reliability and fault tolerant software reliability models and their related issues, (2) proposed technique for software reliability enhancement, and (3) general discussion and future research. The development of this proposed state-of-the-art software reliability model will be performed in the second place. 407 refs., 4 figs., 2 tabs.

Pham, H.; Pham, M.

1991-12-01T23:59:59.000Z

330

Definition: Reliability Coordinator Information System | Open Energy  

Open Energy Info (EERE)

Reliability Coordinator Information System Reliability Coordinator Information System Jump to: navigation, search Dictionary.png Reliability Coordinator Information System The system that Reliability Coordinators use to post messages and share operating information in real time.[1] Related Terms Reliability Coordinator References ↑ Glossary of Terms Used in Reliability Standards An LikeLike UnlikeLike You like this.Sign Up to see what your friends like. inline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Reliability_Coordinator_Information_System&oldid=480407" Categories: Definitions ISGAN Definitions What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load)

331

IEEE TRANSACTIONS ON RELIABILITY, VOL. 38, NO. 1,1989 APRIL 103 Reliable Protocols for Distributed  

E-Print Network (OSTI)

IEEE TRANSACTIONS ON RELIABILITY, VOL. 38, NO. 1,1989 APRIL 103 Reliable Protocols for Distributed-tolerance, Message complexity, Reliable protocol Reader Aids - Purpose: Design reliable distributed protocols Special Termination Detection S. Venkatesan University of Pittsburgh, Pittsburgh Key Words - Distributed system, Fault

Venkatesan, S.

332

Research Areas  

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

Areas Areas Research Areas Print Scientists from a wide variety of fields come to the ALS to perform experiements. Listed below are some of the most common research areas covered by ALS beamlines. Below each heading are a few examples of the specific types of topics included in that category. Click on a heading to learn more about that research area at the ALS. Energy Science Photovoltaics, photosynthesis, biofuels, energy storage, combustion, catalysis, carbon capture/sequestration. Bioscience General biology, structural biology. Materials/Condensed Matter Correlated materials, nanomaterials, magnetism, polymers, semiconductors, water, advanced materials. Physics Atomic, molecular, and optical (AMO) physics; accelerator physics. Chemistry Surfaces/interfaces, catalysts, chemical dynamics (gas-phase chemistry), crystallography, physical chemistry.

333

System Assessment Standards: Defining the Market for Industrial Energy Assessments  

SciTech Connect

Improved efficiency of industrial systems (e.g., compressed air or steam) contributes to a manufacturing facility?s bottom line, improves reliability, and better utilizes assets. Despite these advantages, many industrial facilities continue to have unrealized system optimization potential. A barrier to realizing this potential is the lack of market definition for system energy efficiency assessment services, creating problems for both service providers in establishing market value for their services and for consumers in determining the relative quality of these system assessment services. On August 19, 2008, the American Society of Mechanical Engineers (ASME) issued four new draft Standards for trial use that are designed to raise the bar and define the market for these services. These draft Standards set the requirements for conducting an energy assessment at an industrial facility for four different system types: compressed air, process heating, pumping, and steam. The Standards address topics such as organizing and conducting assessments; analyzing the data collected; and reporting and documentation. This paper addresses both the issues and challenges in developing the Standards and the accompanying Guidance Documents, as well as the result of field testing by industrial facilities, consultants, and utilities during the trial use period that ended in January, 2009. These Standards will be revised and released by ASME for public review, and subsequently submitted for approval as American National Standards for publication in late 2009. Plans for a related activity to establish a professional-level program to certify practitioners in the area of system assessments, opportunities to integrate the ASME Standards with related work on industrial energy efficiency, as well as plans to expand the system assessment Standard portfolio are also discussed.

Sheaffer, Paul; McKane, Aimee; Tutterow, Vestal; Crane, Ryan

2009-08-01T23:59:59.000Z

334

Assessment in natural sciences.  

E-Print Network (OSTI)

??This research study focusses on assessment in the Natural Sciences learning area in grades 8 and 9. The aspect under focus is the extent to… (more)

Singh, Suresh Kamar

2009-01-01T23:59:59.000Z

335

Interoperability between a dynamic reliability modeling and a Systems Engineering process Principles and Case Study  

E-Print Network (OSTI)

element for interoperability with the tools and activities required for a dynamic reliability assessment. The case study is the dynamic assessment of availability of a feed-water control system in a power plant steam generator, presented in previous articles. Keywords: Systems engineering, systems modeling, RAMS

Paris-Sud XI, Université de

336

High reliability plastic packaging for microelectronics  

SciTech Connect

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

337

2014 DOE Human Reliability Program (HRP) Workshop | Department...  

Office of Environmental Management (EM)

DOE Human Reliability Program (HRP) Workshop 2014 DOE Human Reliability Program (HRP) Workshop August 18, 2014 - 7:51am Addthis 2014 DOE Human Reliability Program (HRP) Workshop...

338

Electricity Delivery and Energy Reliability | Department of Energy  

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

Electricity Delivery and Energy Reliability Electricity Delivery and Energy Reliability information about the delivery of electricity and energy reliability Electricity Delivery...

339

Research Areas  

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

Research Areas Print Research Areas Print Scientists from a wide variety of fields come to the ALS to perform experiements. Listed below are some of the most common research areas covered by ALS beamlines. Below each heading are a few examples of the specific types of topics included in that category. Click on a heading to learn more about that research area at the ALS. Energy Science Photovoltaics, photosynthesis, biofuels, energy storage, combustion, catalysis, carbon capture/sequestration. Bioscience General biology, structural biology. Materials/Condensed Matter Correlated materials, nanomaterials, magnetism, polymers, semiconductors, water, advanced materials. Physics Atomic, molecular, and optical (AMO) physics; accelerator physics. Chemistry Surfaces/interfaces, catalysts, chemical dynamics (gas-phase chemistry), crystallography, physical chemistry.

340

coherence area  

Science Journals Connector (OSTI)

1....In an electromagnetic wave, such as a lightwave or a radio wave, the area of a surface (a) every point on which the surface is perpendicular to the direction of propagation, (b) over which the e...

2001-01-01T23:59:59.000Z

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

Accident Sequence Evaluation Program: Human reliability analysis procedure  

SciTech Connect

This document presents a shortened version of the procedure, models, and data for human reliability analysis (HRA) which are presented in the Handbook of Human Reliability Analysis With emphasis on Nuclear Power Plant Applications (NUREG/CR-1278, August 1983). This shortened version was prepared and tried out as part of the Accident Sequence Evaluation Program (ASEP) funded by the US Nuclear Regulatory Commission and managed by Sandia National Laboratories. The intent of this new HRA procedure, called the ''ASEP HRA Procedure,'' is to enable systems analysts, with minimal support from experts in human reliability analysis, to make estimates of human error probabilities and other human performance characteristics which are sufficiently accurate for many probabilistic risk assessments. The ASEP HRA Procedure consists of a Pre-Accident Screening HRA, a Pre-Accident Nominal HRA, a Post-Accident Screening HRA, and a Post-Accident Nominal HRA. The procedure in this document includes changes made after tryout and evaluation of the procedure in four nuclear power plants by four different systems analysts and related personnel, including human reliability specialists. The changes consist of some additional explanatory material (including examples), and more detailed definitions of some of the terms. 42 refs.

Swain, A.D.

1987-02-01T23:59:59.000Z

342

Hybrid reliability model for nuclear reactor safety system  

Science Journals Connector (OSTI)

The dependability of critical safety systems needs to be quantitatively determined in order to verify their effectiveness, e.g. with regard to regulatory requirements. Since modular redundant safety systems are not required for normal operation, their reliability is strongly dependent on periodic inspection. Several modeling methods for the quantitative assessment of dependability are described in the literature, with a broad variation in complexity and modeling power. Static modeling techniques such as fault tree analysis (FTA) or reliability block diagrams (RBD) are not capable of capturing redundancy and repair or test activities. Dynamic state space based models such as continuous time Markov chains (CTMC) are more powerful but often result in very large, intractable models. Moreover, exponentially distributed state residence times are not a correct representation of actual residence times associated with repair activities or periodic inspection. In this study, a hybrid model combines a system level RBD with a CTMC to describe the dynamics. The effects of periodic testing are modeled by redistributing state probabilities at deterministic test times. Applying the method to the primary safety shutdown system of the BR2(Belgian Reactor 2)—nuclear research reactor, resulted in a quantitative as well as a qualitative assessment of its reliability.

Steven Verlinden; Geert Deconinck; Bernard Coupé

2012-01-01T23:59:59.000Z

343

Real Time Grid Reliability Management 2005  

E-Print Network (OSTI)

a technical assessment of the continuation power flowa technical assessment of the continuation power flowtechnical assessment of algorithms, developed a first prototype incorporating contingency ranking, continuation power

Eto, Joe

2008-01-01T23:59:59.000Z

344

Fire Hazards Analysis for the 200 Area Interim Storage Area  

SciTech Connect

This documents the Fire Hazards Analysis (FHA) for the 200 Area Interim Storage Area. The Interim Storage Cask, Rad-Vault, and NAC-1 Cask are analyzed for fire hazards and the 200 Area Interim Storage Area is assessed according to HNF-PRO-350 and the objectives of DOE Order 5480 7A. This FHA addresses the potential fire hazards associated with the Interim Storage Area (ISA) facility in accordance with the requirements of DOE Order 5480 7A. It is intended to assess the risk from fire to ensure there are no undue fire hazards to site personnel and the public and to ensure property damage potential from fire is within acceptable limits. This FHA will be in the form of a graded approach commensurate with the complexity of the structure or area and the associated fire hazards.

JOHNSON, D.M.

2000-01-06T23:59:59.000Z

345

Reliability Technology earns prestigious Los Alamos Award  

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

September 2013 Reliability Technology earns prestigious Los Alamos Award Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest...

346

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

Office of Environmental Management (EM)

and development projects that will advance the reliability and durability of solar photovoltaic (PV) technologies. Eligible projects will examine the performance of PV modules and...

347

Substation reliability -- Practical application and system approach  

SciTech Connect

Practical application of reliability analysis was made for the comparison of alternate line and bus arrangements of a future transmission substation with potential savings of up to $3.6 M. The paper describes how both the substation and the power system were simulated by using computer programs STAREL and COMREL. It presents the method used to obtain the most accurate estimates for the outage data of the system components. Finally, it expresses the results with simple reliability indices which can be meaningful for management. The results of the study show the need to include the reliability of the transmission system in a substation reliability evaluation.

Save, P. [Southern California Edison Co., Rosemead, CA (United States)] [Southern California Edison Co., Rosemead, CA (United States)

1995-02-01T23:59:59.000Z

348

Substation reliability -- Practical application and system approach  

SciTech Connect

Practical application of reliability analysis was made for the comparison of alternate line and bus arrangements of a future transmission substation with potential savings of up to 53.6 M. The paper describes how both the substation and the power system were simulated by using computer programs STAREL and COMREL. It presents the method used to obtain the most accurate estimates for the outage data of the system components. Finally, it expresses the results with simple reliability indices which can be meaningful for management. The results of the study show the need to include the reliability of the transmission system in a substation reliability evaluation.

Save, P. [Southern California Edison Co., Rosemead, CA (United States)

1994-12-31T23:59:59.000Z

349

Information Concerning Reliability Impacts under Various System...  

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

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

350

Sandia National Laboratories: Third Annual Continuous Reliability...  

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

analysis of U.S. wind fleet performance based on aggregated fleet reliability data and includes operational statistics, availability time accounting, and top contributors...

351

Reliability evaluation of smart distribution grids.  

E-Print Network (OSTI)

??The term "Smart Grid" generally refers to a power grid equipped with the advanced technologies dedicated for purposes such as reliability improvement, ease of control… (more)

Kazemi, Shahram

2011-01-01T23:59:59.000Z

352

Reliability Analysis of Electric Power Systems Using an Object-oriented Hybrid Modeling Approach  

E-Print Network (OSTI)

The ongoing evolution of the electric power systems brings about the need to cope with increasingly complex interactions of technical components and relevant actors. In order to integrate a more comprehensive spectrum of different aspects into a probabilistic reliability assessment and to include time-dependent effects, this paper proposes an object-oriented hybrid approach combining agent-based modeling techniques with classical methods such as Monte Carlo simulation. Objects represent both technical components such as generators and transmission lines and non-technical components such as grid operators. The approach allows the calculation of conventional reliability indices and the estimation of blackout frequencies. Furthermore, the influence of the time needed to remove line overloads on the overall system reliability can be assessed. The applicability of the approach is demonstrated by performing simulations on the IEEE Reliability Test System 1996 and on a model of the Swiss high-voltage grid.

Schläpfer, Markus; Kröger, Wolfgang

2012-01-01T23:59:59.000Z

353

Functional reliability analysis of Safety Grade Decay Heat Removal System of Indian 500 MWe PFBR  

Science Journals Connector (OSTI)

Passive systems are increasingly deployed in nuclear industry with an objective of increasing reliability and safety of operations with reduced cost. Methods for assessing the reliability of thermal–hydraulic passive systems, that is systems with moving working fluid, address the issues in natural buoyancy-driven flow that could result in a failure to meet the design safety limits under accident scenarios. This is referred as design functional reliability. This paper presents the results of functional reliability analysis carried out for the passive Safety Grade Decay Heat Removal System (SGDHRS) of Indian Prototype Fast Breeder Reactor (PFBR). The analysis is carried out based on the overall approach reported in the Reliability Methods for Passive System (RMPS, European Commission) project. Functional failure probability is calculated using Monte-Carlo method and also with method of moments.

T. Sajith Mathews; M. Ramakrishnan; U. Parthasarathy; A. John Arul; C. Senthil Kumar

2008-01-01T23:59:59.000Z

354

Reliability estimates for selected sensors in fusion applications  

SciTech Connect

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

355

Recent applications of thermal imagers for security assessment  

SciTech Connect

This paper discusses recent applications by Sandia National Laboratories of cooled and uncooled thermal infrared imagers to wide-area security assessment systems. Thermal imagers can solve many security assessment problems associated with the protection of high-value assets at military bases, secure installations, and commercial facilities. Thermal imagers can provide surveillance video from security areas or perimeters both day and night without expensive security lighting. Until fairly recently, thermal imagers required open-loop cryogenic cooling to operate. The high cost of these systems and associated maintenance requirements restricted their widespread use. However, recent developments in reliable, closed-loop, linear drive cryogenic coolers and uncooled infrared imagers have dramatically reduced maintenance requirements, extended MTBF, and are leading to reduced system cost. These technology developments are resulting in greater availability and practicality for military as well as civilian security applications.

Bisbee, T.L.

1997-06-01T23:59:59.000Z

356

Power Electronics Reliability Kick Off Meeting Â… Silicon Power Corp. & Sandia Labs  

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

Reliability Reliability Analysis Annual DOE Peer Review Meeting October 8, 2009 Mark A. Smith - Systems Readiness & Sustainment Technologies Department Stan Atcitty - Energy Infrastructure and Distributed Energy Resources Department Sandia National Laboratories Technologies & Customers * Complex Systems Modeling & Simulation * Life Cycle & Total Ownership Costs Analyses * Design for Reliability/Maintainability * Prognostics & Health Management (PHM) * Integrated Logistics Support * Technology Management Optimization * Asset Acquisition & Mission Planning * Risk Assessment & Risk Management Technologies Support Broad Customer Base Automotive Power Electronics Aviation Nuclear Power Coal-Fired Power Petroleum Tools & Technologies Validated Through Broad Use

357

China and India PV Reliability-NREL Cooperation | Open Energy Information  

Open Energy Info (EERE)

Reliability-NREL Cooperation Reliability-NREL Cooperation Jump to: navigation, search Logo: China and India PV Reliability under the Asia Pacific Partnership Name China and India PV Reliability under the Asia Pacific Partnership Agency/Company /Organization National Renewable Energy Laboratory Partner Chinese and Indian PV manufacturers and qualification/certification experts Sector Energy Focus Area Solar Topics Background analysis Country India, China Southern Asia, Eastern Asia References NREL International Program Overview Abstract Over a period of two years, U.S. partners will engage with Chinese and Indian manufacturers and qualification/certification experts in a phased project that emphasizes quality control through the value chain, as well as, reliability R&D. The National Renewable Energy Laboratory (NREL) and Sandia National Laboratory (SNL) will take the lead to provide technical assistance and training.

358

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

359

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

360

Reliability First Corporation | OpenEI  

Open Energy Info (EERE)

Reliability First Corporation Reliability First Corporation Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 110, and contains only the reference case. The dataset uses gigawatts, billion kilowatthours and quadrillion Btu. The data is broken down into generating capacity, electricity generation and energy consumption. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO EIA Gateway Reliability First Corporation SERC Reliability Corporation Data application/vnd.ms-excel icon AEO2011:Renewable Energy Generation by Fuel - SERC Reliability Corporation / Gateway- Reference Case (xls, 118.9 KiB) Quality Metrics Level of Review Peer Reviewed

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

Reliability analysis of safety-related digital instrumentation and control in a nuclear power plant.  

E-Print Network (OSTI)

?? There is so far no consensus on how to develop a reliability model of safety-related digitalinstrumentation and control (I&C) in a probabilistic safety assessment… (more)

Gustafsson, Johan

2012-01-01T23:59:59.000Z

362

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

363

IEEE TRANSACTIONS ON RELIABILITY, VOL. 54, NO. 3, SEPTEMBER 2005 421 Reliability Optimization of Distributed Access  

E-Print Network (OSTI)

of the SSA. Index Terms--Branch and bound, distributed access networks, optimization, system reliabilityIEEE TRANSACTIONS ON RELIABILITY, VOL. 54, NO. 3, SEPTEMBER 2005 421 Reliability Optimization of Distributed Access Networks With Constrained Total Cost Fang-Ming Shao, Xuemin (Sherman) Shen, Senior Member

Shen, Xuemin "Sherman"

364

Cathedral Rock Picnic Area Rehabilitation Environmental Assessment  

National Nuclear Security Administration (NNSA)

are over 40 years old and show signs of heavy use. The sewer system consists of septic tanks and leach fields, which are about 40 years old and nearing the end of their...

365

Radiological Areas  

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

Revision to Clearance Policy Associated with Recycle of Scrap Metals Originating from Revision to Clearance Policy Associated with Recycle of Scrap Metals Originating from Radiological Areas On July 13, 2000, the Secretary of Energy imposed an agency-wide suspension on the unrestricted release of scrap metal originating from radiological areas at Department of Energy (DOE) facilities for the purpose of recycling. The suspension was imposed in response to concerns from the general public and industry groups about the potential effects of radioactivity in or on material released in accordance with requirements established in DOE Order 5400.5, Radiation Protection of the Public and Environment. The suspension was to remain in force until DOE developed and implemented improvements in, and better informed the public about, its release process. In addition, in 2001 the DOE announced its intention to prepare a

366

Robot-Powered Reliability Testing at NREL's ESIF  

ScienceCinema (OSTI)

With auto manufacturers expected to roll out fuel cell electric vehicles in the 2015 to 2017 timeframe, the need for a reliable hydrogen fueling infrastructure is greater than ever. That's why the National Renewable Energy Laboratory (NREL) is using a robot in its Energy Systems Integration Facility (ESIF) to assess the durability of hydrogen fueling hoses, a largely untested-and currently costly-component of hydrogen fueling stations. The automated machine mimics the repetitive stress of a human bending and twisting the hose to refuel a vehicle-all under the high pressure and low temperature required to deliver hydrogen to a fuel cell vehicle's onboard storage tank.

Harrison; Kevin

2014-06-10T23:59:59.000Z

367

Robot-Powered Reliability Testing at NREL's ESIF  

SciTech Connect

With auto manufacturers expected to roll out fuel cell electric vehicles in the 2015 to 2017 timeframe, the need for a reliable hydrogen fueling infrastructure is greater than ever. That's why the National Renewable Energy Laboratory (NREL) is using a robot in its Energy Systems Integration Facility (ESIF) to assess the durability of hydrogen fueling hoses, a largely untested-and currently costly-component of hydrogen fueling stations. The automated machine mimics the repetitive stress of a human bending and twisting the hose to refuel a vehicle-all under the high pressure and low temperature required to deliver hydrogen to a fuel cell vehicle's onboard storage tank.

Harrison; Kevin

2013-12-05T23:59:59.000Z

368

What can I do with this major? AREAS EMPLOYERS  

E-Print Network (OSTI)

a master's or doctoral degree to qualify for most "statistician" jobs. Some positions are available Office of Naval Research Army Research Office State and local government Scientific Research: Design Assessment Quality Control Reliability Product Testing Product Development and Improvement Management

Mountziaris, T. J.

369

Evaluating an electricity and magnetism assessment tool: Brief electricity and magnetism assessment  

Science Journals Connector (OSTI)

The Brief Electricity and Magnetism Assessment (BEMA), developed by Chabay and Sherwood, was designed to assess student understanding of basic electricity and magnetism concepts covered in college-level calculus-based introductory physics courses. To evaluate the reliability and discriminatory power of this assessment tool, we performed statistical tests focusing both on item analyses (item difficulty index, item discrimination index, and item point biserial coefficient) and on the entire test (test reliability and Ferguson’s delta). The results indicate that BEMA is a reliable assessment tool.

Lin Ding; Ruth Chabay; Bruce Sherwood; Robert Beichner

2006-03-15T23:59:59.000Z

370

Report Wildland Fire Area Hazard  

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

Report Wildland Fire Area Hazard Report Wildland Fire Area Hazard Report Wildland Fire Area Hazard Report wildland fire area hazards or incidents that are non-life threatening only. Call 911 for all emergencies that require immediate assistance. How to report wildland fire hazard Use the following form to report any wildland fire area hazards or incidents that are non-life threatening only. Call 911 for all emergencies that require immediate assistance. Fill out this form as completely as possible so we can better assess the hazard. All submissions will be assessed as promptly as possible. For assistance with a non-emergency situation, contact the Operations Support Center at 667-6211. Name (optional): Hazard Type (check one): Wildlife Sighting (check box if animal poses serious threat) Trails (access/egress)

371

Report on the analysis of field data relating to the reliability of solar hot water systems.  

SciTech Connect

Utilities are overseeing the installations of thousand of solar hot water (SHW) systems. Utility planners have begun to ask for quantitative measures of the expected lifetimes of these systems so that they can properly forecast their loads. This report, which augments a 2009 reliability analysis effort by Sandia National Laboratories (SNL), addresses this need. Additional reliability data have been collected, added to the existing database, and analyzed. The results are presented. Additionally, formal reliability theory is described, including the bathtub curve, which is the most common model to characterize the lifetime reliability character of systems, and for predicting failures in the field. Reliability theory is used to assess the SNL reliability database. This assessment shows that the database is heavily weighted with data that describe the reliability of SHW systems early in their lives, during the warranty period. But it contains few measured data to describe the ends of SHW systems lives. End-of-life data are the most critical ones to define sufficiently the reliability of SHW systems in order to answer the questions that the utilities pose. Several ideas are presented for collecting the required data, including photometric analysis of aerial photographs of installed collectors, statistical and neural network analysis of energy bills from solar homes, and the development of simple algorithms to allow conventional SHW controllers to announce system failures and record the details of the event, similar to how aircraft black box recorders perform. Some information is also presented about public expectations for the longevity of a SHW system, information that is useful in developing reliability goals.

Menicucci, David F. (Building Specialists, Inc., Albuquerque, NM)

2011-07-01T23:59:59.000Z

372

2012 Annual Planning Summary for Western Area Power Administration  

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

The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2012 and 2013 within Western Area Power Administration.

373

2014 Annual Planning Summary for the Western Area Power Administration  

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

The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2014 and 2015 within the Western Area Power Administration.

374

Defect characterization and classification for the ICON inspection reliability trials  

SciTech Connect

A major series of inspection reliability trials have been conducted as part of the ICON project, a THERMIE Joint Industry project. Part of the ICON work involved developing a procedure for characterization of the library of cracks. This will be reported in the paper. A second area considered was that of defect classification. This involved a reassessment of previously used classification, in the light of risk based inspection scheduling requirements, and the introduction of a new classification based on PD6493. This work will also be reported together with examples of the measured Probability of Detection curves.

Dover, W.D.; Rudlin, J. [University College London (United Kingdom). NDE Center

1996-12-31T23:59:59.000Z

375

SERC Reliability Corporation | OpenEI  

Open Energy Info (EERE)

SERC Reliability Corporation SERC Reliability Corporation Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 113, and contains only the reference case. The dataset uses gigawatts, billion kilowatthours and quadrillion Btu. The data is broken down into generating capacity, electricity generation and energy consumption. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO Carolina EIA Renewable Energy Generation SERC Reliability Corporation Virginia Data application/vnd.ms-excel icon AEO2011: Renewable Energy Generation by Fuel - SERC Reliability Corporation / Virginia-Carolina- Reference Case (xls, 118.9 KiB) Quality Metrics

376

Photovoltaic Module Reliability Workshop 2013 | Department of...  

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

and PV Evolutions Impact and Detection of Pyranometer Failure on PV Performance, D.C. Jordan and B. Sekulic of NREL Manufacturing Metrology for c-Si Module ReliabilityDurability,...

377

2014 Transmission Reliability Program Peer Review  

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

The Transmission Reliability Program Peer Review included 20 presentations over 2 days on June 3 - 4, 2014 in Washington, DC. Presentations are available through the links. The agenda is available to download.

378

Apply reliability centered maintenance to sealless pumps  

SciTech Connect

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

379

Reliability Challenges for Solar Energy (Presentation)  

SciTech Connect

PV industry can benefit from reliability testing experience of microelectronics industry . Si modules perform well in field; CdTe/CIGS must be sealed to moisture; CPV in product development stage.

Kurtz, S.

2009-04-27T23:59:59.000Z

380

A method for setting reliability performance criteria  

SciTech Connect

Reliability performance criteria are required for monitoring under the Maintenance Rule. This paper presents a probabilistic approach for establishing these performance criteria on a plant-specific basis. Results are presented for a number of case studies, and are summarized in terms of a deterministic formula. This formula was used to develop and document reliability performance criteria for all Maintenance Rule systems/subsystems at the Vermont Yankee Nuclear Power Station.

Burns, K.J.; Turcotte, R.T. [Yankee Atomic Electric Co., Bolton, MA (United States). Nuclear Engineering Dept.

1996-08-01T23:59:59.000Z

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

Communication Reliability in Network on Chip Designs  

E-Print Network (OSTI)

duplication with parity (DAP) and triplication error correction (TEC) with Green bus coding for crosstalk avoidances to guard against crosstalk induced errors is presented in [49] and [50] respectively. Ying et al. in [42] present the design of a reliable... duplication with parity (DAP) and triplication error correction (TEC) with Green bus coding for crosstalk avoidances to guard against crosstalk induced errors is presented in [49] and [50] respectively. Ying et al. in [42] present the design of a reliable...

Kumar, Reeshav

2012-10-19T23:59:59.000Z

382

32 - Reliability in instrumentation and control  

Science Journals Connector (OSTI)

Publisher Summary Reliability is generally defined as the probability that a component or assembly operates without failure for a prescribed period under specified conditions. To ensure a meaningful result, the conditions of operation, both physical and electrical, must be specified in detail as the standard of performance is required. The chapter also discusses reliability and mean time between failures (MTBF). It is convenient to look for value; the one usually adopted is MTBF. This applies to a maintained system in which each failure is repaired and the equipment is then restored to service. For systems, which cannot be maintained, such as satellite control systems, the value of interest is the mean time to failure (MTTF). Another measure of reliability that is often quoted is failure rate—that is, the number of failures per unit time. This is particularly useful in relation to individual components because it is the most convenient figure to use when estimating the reliability of a complete system in terms of the performance of its components. Equipment manufacturers generally quote MTBF as an indication of reliability as the value does not depend upon the operating period, which is often different for each user. However, reliability is the factor of prime concern to the user, and the relation between this and MTBF is thus important. The simplest case occurs when the failure rate, and thus, MTBF is constant with time.

J. Cluley

2003-01-01T23:59:59.000Z

383

Reliability models of wind farms considering wind speed correlation and WTG outage  

Science Journals Connector (OSTI)

Abstract Wind speed correlation and wind turbine generator (WTG) outage are two factors affecting the reliability model of wind farms, but they are not addressed simultaneously in the existing literature. Meanwhile, WTG outage is reported to be dependent with wind speed to some extent. Therefore, the extended reliability models of wind farms incorporating both of these two factors and the dependency between WTG outage and wind speed are proposed in this paper. To consider the uncertainties and dependencies of wind speed and WTG failure, Copula method is applied to simulate correlated random variables representing for wind speed and the number of failed WTG units. Moreover, the linear apportioning technique is used to create multistate reliability models of wind farms from hourly wind power models. A number of sensitivity analyses on the modified IEEE RTS with wind power are conducted to validate the proposed reliability models for generation adequacy assessment. Case studies show that the generation adequacy indices increase with the correlation of wind speed and WTG forced outage rate (FOR). It is meaningful to point out that the effect of dependency between wind speed and WTG FOR on generation adequacy is minimal when WTG outages are independent, but it will be substantially larger when WTG outages are highly dependent. The proposed multistate reliability models of wind farms provide foundation for the reliability assessment of power systems with wind power integrated.

Fan Chen; Fangxing Li; Zhinong Wei; Guoqiang Sun; Jun Li

2015-01-01T23:59:59.000Z

384

Reliability-Based Prioritizing Maintenance Policy for Distribution System  

Science Journals Connector (OSTI)

This paper presents an approach to prioritize maintenance tasks in power distribution system based on reliability models. This approach define weighted average system reliability index WASRI employing reliability indices SAIFI, SAIDI, MAIFI and interruption ... Keywords: Maintenance management, distribution reliability, reliability indices

Zhang Yong; Sun Xiaorong; Chen Hao; Fangxing Li

2010-06-01T23:59:59.000Z

385

Understanding Bulk Power Reliability: The Importance of Good Data and A Critical Review of Existing Sources  

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

Understanding Bulk Power Reliability: Understanding Bulk Power Reliability: The Importance of Good Data and A Critical Review of Existing Sources Emily Fisher Lawrence Berkeley National Laboratory esfisher@lbl.gov Joseph H. Eto Lawrence Berkeley National Laboratory jheto@lbl.gov Kristina Hamachi LaCommare Lawrence Berkeley National Laboratory kshamachi@lbl.gov Abstract Bulk power system reliability is of critical importance to the electricity sector. Complete and accurate information on events affecting the bulk power system is essential for assessing trends and efforts to maintain or improve reliability. Yet, current sources of this information were not designed with these uses in mind. They were designed, instead, to support real-time emergency notification to industry and government first-responders. This

386

Reliability of EUCLIDIAN: An autonomous robotic system for image-guided prostate brachytherapy  

SciTech Connect

Purpose: Recently, several robotic systems have been developed to perform accurate and consistent image-guided brachytherapy. Before introducing a new device into clinical operations, it is important to assess the reliability and mean time before failure (MTBF) of the system. In this article, the authors present the preclinical evaluation and analysis of the reliability and MTBF of an autonomous robotic system, which is developed for prostate seed implantation. Methods: The authors have considered three steps that are important in reliability growth analysis. These steps are: Identification and isolation of failures, classification of failures, and trend analysis. For any one-of-a-kind product, the reliability enhancement is accomplished through test-fix-test. The authors have used failure mode and effect analysis for collection and analysis of reliability data by identifying and categorizing the failure modes. Failures were classified according to severity. Failures that occurred during the operation of this robotic system were considered as nonhomogenous Poisson process. The failure occurrence trend was analyzed using Laplace test. For analyzing and predicting reliability growth, commonly used and widely accepted models, Duane's model and the Army Material Systems Analysis Activity, i.e., Crow's model, were applied. The MTBF was used as an important measure for assessing the system's reliability. Results: During preclinical testing, 3196 seeds (in 53 test cases) were deposited autonomously by the robot and 14 critical failures were encountered. The majority of the failures occurred during the first few cases. The distribution of failures followed Duane's postulation as well as Crow's postulation of reliability growth. The Laplace test index was -3.82 (<0), indicating a significant trend in failure data, and the failure intervals lengthened gradually. The continuous increase in the failure occurrence interval suggested a trend toward improved reliability. The MTBF was 592 seeds, which implied that several prostate seed implantation cases would be possible without encountering any critical failure. The shape parameter for the MTBF was 0.3859 (<1), suggesting a positive reliability growth of this robotic system. At 95% confidence, the reliability for deposition of 65 seeds was more than 90%. Conclusions: Analyses of failure mode strongly indicated a gradual improvement of reliability of this autonomous robotic system. High MTBF implied that several prostate seed implant cases would be possible without encountering any critical failure.

Podder, Tarun K.; Buzurovic, Ivan; Huang Ke; Showalter, Timothy; Dicker, Adam P.; Yu, Yan [Department of Radiation Oncology, Kimmel Cancer Center (NCI-designated), Thomas Jefferson University, Philadelphia, Pennsylvania 19107 (United States)

2011-01-15T23:59:59.000Z

387

Failure and Reliability Analysis for the Master Pump Shutdown System  

SciTech Connect

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

388

Additional Information for E-Area Vault Performance Assessment, Appendix I `Suspect Soil Performance` - Results of Modeling the Effects of Organic Matter on the Mobility of Radionuclides as it Relates to the Disposal of Wood Products in E-Area Slit Trenches  

SciTech Connect

Numerous laboratory and field studies have shown that the chemical form (i.e., speciation) of many metals and radionuclides is affected by the presence of naturally occurring organic matter (OM) and its degradation products. The effects of OM (e.g., wood products) on the speciation and, therefore, the mobility of Am, Bk, Cf, Cm, Cs, Ni, NpO{sub 2}, Rb, Sr. UO{sub 2}, and Zr were estimated through use of geochemical and groundwater flow modeling. Due to the complex mixture nature of naturally occurring OM, the OM system was simplified through use of surrogate compounds (citric acid and ethylenedinitrilotetraacetic acid (EDTA)) to estimate effects of OM on radionuclide mobility. Using this approach, OM was found to have no effect on the inventory limits for Cs, NpO{sub 2}, Rb and Zr. The inventory limits for the isotopes of Am, Bk, Cf, Cm, Ni, Pd, PuO{sub 2}, Sr, and UO{sub 2} calculated in the presence of OM decreased over a range of 26 percent for U-233 to 48 percent for Pu-240. The information in this report will be included in the next revision of the E-Area Vaults Performance Assessment.

Serkiz, S.M. [Westinghouse Savannah River Company, AIKEN, SC (United States); Myers, J.L.

1996-04-24T23:59:59.000Z

389

EA-1177: Final Environmental Assessment | Department of Energy  

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

Assessment SalvageDemolition of 200 West Area, 200 East Area, and 300 Area Steam Plants This EA evaluates the environmental impacts for the proposal to salvage and...

390

Measuring eating disorder attitudes and behaviors: a reliability generalization study  

E-Print Network (OSTI)

I used reliability generalization procedures to determine the mean score reliability of the Eating Disorder Inventory (EDI), the Eating Attitudes Test (EAT), and the Bulimia Test (BULIT). Reliability generalization is a type of meta-analysis used...

Pearson, Crystal Anne

2009-05-15T23:59:59.000Z

391

Reliable Deployment of Component-based Applications into Distributed Environments  

E-Print Network (OSTI)

Reliable Deployment of Component-based Applications into Distributed Environments Abbas Heydarnoori's quality of service properties such as reliability. In distributed sys- tems, the reliability that should be deployed into a large distributed en- vironment, several deployment configurations are typ

Czarnecki, Krzysztof

392

Considering Risk-Taking Behavior in Travel Time Reliability  

E-Print Network (OSTI)

wide distribution of preferences for speed and reliability.Distribution of Motorists’ Preference for Travel Time and Reliability:time, reliability and cost have normal distributions, i.e. ,

2005-01-01T23:59:59.000Z

393

Bonneville - Hood River Vegetation Management Environmental Assessment  

SciTech Connect

To maintain the reliability of its electrical system, BPA, in cooperation with the U.S. Forest Service, needs to expand the range of vegetation management options used to clear unwanted vegetation on about 20 miles of BPA transmission line right-of-way between Bonneville Dam and Hood River; Oregon, within the Columbia Gorge National Scenic Area (NSA). We propose to continue controlling undesirable vegetation using a program of Integrated Vegetation Management (IVM) which includes manual, biological and chemical treatment methods. BPA has prepared an Environmental Assessment (EA) (DOE/EA-1257) evaluating the proposed project. Based on the analysis in the EA, BPA has determined that the proposed action is not a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act (NEPA) of 1969. Therefore, the preparation of an Environmental Impact Statement (EIS) is not required and BPA is issuing this FONSI.

N /A

1998-08-01T23:59:59.000Z

394

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

395

Integration of NDE Reliability and Fracture Mechanics  

SciTech Connect

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

396

Model Fire Protection Assessment Guide  

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

This Assessment guide covers the implementation of the DOE's responsibility of assuring that DOE and the DOE Contractors have established Fire Protection Programs that are at the level required for the area being assessed.

397

DOE Designates Southwest Area and Mid-Atlantic Area National Interest  

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

Designates Southwest Area and Mid-Atlantic Area National Designates Southwest Area and Mid-Atlantic Area National Interest Electric Transmission Corridors DOE Designates Southwest Area and Mid-Atlantic Area National Interest Electric Transmission Corridors October 2, 2007 - 2:50pm 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 designation of two National Interest Electric Transmission Corridors (National Corridors) -- the Mid-Atlantic Area National Interest Electric Transmission Corridor, and the Southwest Area National Interest Electric Transmission Corridor. These corridors include areas in two of the Nation's most populous regions with growing electricity congestion problems. The Department based its designations on data and

398

DOE Designates Southwest Area and Mid-Atlantic Area National Interest  

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

Designates Southwest Area and Mid-Atlantic Area National Designates Southwest Area and Mid-Atlantic Area National Interest Electric Transmission Corridors October 2, 2007 DOE Designates Southwest Area and Mid-Atlantic Area National Interest Electric Transmission Corridors October 2, 2007 U.S. Department of Energy (DOE) Assistant Secretary for Electricity Delivery and Energy Reliability Kevin M. Kolevar today announced the Department's designation of two National Interest Electric Transmission Corridors (National Corridors) -- the Mid-Atlantic Area National Interest Electric Transmission Corridor, and the Southwest Area National Interest Electric Transmission Corridor. These corridors include areas in two of the Nation's most populous regions with growing electricity congestion problems. The Department based its designations on data and analysis

399

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...

400

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

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

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...

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

2013 Reliability & Markets Peer Review - Day 2 Presentations...  

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

Review - The Nexus of System Reliability, Energy Costs, and the Environment During High Energy Demand Days - Max Zhang, Cornell More Documents & Publications 2012 Reliability &...

402

Reliability Evaluation of Substations Subject to Protection Failures:.  

E-Print Network (OSTI)

??Reliability evaluation of power system substations is of significant importance when performing asset management. Most of the studies about substation reliability only focus on the… (more)

Wang, F.

2012-01-01T23:59:59.000Z

403

Thermal Stress and Reliability for Advanced Power Electronics...  

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

Performance and Reliability of Bonded Interfaces Physics of Failure of Electrical Interconnects Thermal Stress and Reliability for Advanced Power Electronics and Electric Machines...

404

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...

405

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

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

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...

406

Methods of estimating the reliability of nuclear reactor installations  

Science Journals Connector (OSTI)

Domestic and foreign experience indicate that quantitative analysis of the reliability of reactor systems during their development is a rather effective means of increasing their reliability.

I. Ya. Emel'yanov; A. I. Klemin; E. F. Polyakov

1974-11-01T23:59:59.000Z

407

Office of Electricity Delivery and Energy Reliability Recovery...  

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

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...

408

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

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

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

409

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...

410

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

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

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

411

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

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

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

412

Mechanical Reliability of Piezo-Stack Actuators | Department...  

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

Mechanical Reliability of Piezo-Stack Actuators Mechanical Reliability of Piezo-Stack Actuators Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review...

413

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

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

Electro-thermal-mechanical Simulation and Reliability for Plug-in Vehicle Converters and Inverters Electro-thermal-mechanical Simulation and Reliability for Plug-in Vehicle...

414

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

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

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...

415

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

416

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

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

reliability can help agencies understand the performance of their systems and monitor how reliability improves over time. It equips them to answer questions like: What is the...

417

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...

418

Southeast Idaho Area Links  

NLE Websites -- All DOE Office Websites (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...

419

Smart Grid: Creating Jobs while Delivering Reliable,  

Open Energy Info (EERE)

Smart Grid: Creating Jobs while Delivering Reliable, Smart Grid: Creating Jobs while Delivering Reliable, Environmentally-friendly Energy Home > Groups > OpenEI Community Central Graham7781's picture Submitted by Graham7781(1992) Super contributor 2 March, 2010 - 14:14 imported OpenEI On April 16th, 2009, Vice President Joe Biden announced that the Department of Energy was planning to develop a stronger, more reliable energy grid. The plan would allocate $3.4 billion in funds to be distributed across the nation, aiding projects aimed at improving and updating the current electrical power grid in the United States. Two projects are funded by smart grid: smaller and larger. Smaller projects range from $300,000 to $20,000,000. These projects typically focus on upgrading equipment in less populated ares. Larger projects range from

420

Electricity Delivery and Energy Reliability PROGRAM DESCRIPTION  

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

2 2 Electricity Delivery and Energy Reliability PROGRAM DESCRIPTION The Office of Electricity Delivery and Energy Reliability (OE) leads national efforts to modernize the electric grid, enhance security and reliability of energy infrastructure, and facilitate recovery from disruptions to the energy supply. As stated in the President's A Policy Framework for the 21 st Century Grid, a smarter, modernized electric grid is fundamental to transforming the Nation's energy system and securing US leadership in a clean energy future. OE supports activities that enable innovation across the energy sector, empower American consumers, and secure our energy future. OE consists of three programs: Research and Development; Permitting, Siting and Analysis; and Infrastructure Security and Energy Restoration.

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

DOE limited standard: Operations assessments  

SciTech Connect

Purpose of this standard is to provide DOE Field Element assessors with a guide for conducting operations assessments, and provide DOE Field Element managers with the criteria of the EM Operations Assessment Program. Sections 6.1 to 6.21 provide examples of how to assess specific areas; the general techniques of operations assessments (Section 5) may be applied to other areas of health and safety (e.g. fire protection, criticality safety, quality assurance, occupational safety, etc.).

NONE

1996-05-01T23:59:59.000Z

422

We present two systems, reliable sockets (rocks) and reliable packets (racks), that provide transparent network connection  

E-Print Network (OSTI)

Abstract We present two systems, reliable sockets (rocks) and reliable packets (racks of the connection changes IP address, with correct recovery of in-flight data. To allow rocks and racks Protocol that enables the remote detection of rocks and racks, or any other socket enhancement system

Miller, Barton P.

423

An Overview of Quantitative Risk Assessment of  

E-Print Network (OSTI)

management of flight hardware, trade studies, and reliability prediction of new hardware. In the risk management area, life limits based on QRA are being used in the Space Shuttle main engine (SSME) program [1 been used by MSFC to predict the reliability of newly developed hardware such as X-33 and X-34 engines

Christian, Eric

424

Technique for Measuring Hybrid Electronic Component Reliability  

SciTech Connect

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

425

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

E-Print Network (OSTI)

harvesting has also become a popular supplemental (and generally non-potable) water source in urban1 Generalized Storage-Reliability-Yield equations for rainwater harvesting systems Lars S. Hanson1 harvesting (RWH) is gaining popularity as a sustainable water supply source in urban as well as rural areas

Vogel, Richard M.

426

Energy efficient and reliable data delivery in urban sensing applications: A performance analysis  

Science Journals Connector (OSTI)

Urban sensing is an emerging application field for Wireless Sensor Networks (WSNs), where a number of static sensors is sparsely deployed in an urban area to collect environmental information. Data sensed by each sensor are, then, opportunistically transmitted ... Keywords: Analytical model and implementation, Erasure coding, Mobile sinks, Reliable data delivery, Urban sensing, Wireless sensor networks

Eleonora Borgia; Giuseppe Anastasi; Marco Conti

2013-12-01T23:59:59.000Z

427

The Western Water Assessment Annual RISA Report  

E-Print Network (OSTI)

The Western Water Assessment Annual RISA Report Reporting Period: January 2007-December 2007 #12;Western Water Assessment 2007 Annual Report 2 Table of Contents I. Areas of Focus-30 #12;Western Water Assessment 2007 Annual Report 3

Neff, Jason

428

Granite Reliable Power | Open Energy Information  

Open Energy Info (EERE)

Reliable Power Reliable Power Jump to: navigation, search Name Granite Reliable Power Facility Granite Reliable Power Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Brookfield Renewable Energy Group Developer Brookfield Renewable Energy Group Energy Purchaser Green Mountain Power / Central Vermont Public Service / New England Power Pool Location Milan NH Coordinates 44.74039314°, -71.28376007° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.74039314,"lon":-71.28376007,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

429

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

430

Reliability Meets Big Data: Opportunities and Challenges  

E-Print Network (OSTI)

be outfitted with sensors that can be used to capture information about how and when and under what #12;1 The Next Generation of Reliability Data 1.1 Background Due to changes in technology, the next sensors and smart chips in a product to measure variables such as use rate, system load, and various

431

REPUTATION AND RELIABILITY IN COLLECTIVE GOODS  

E-Print Network (OSTI)

REPUTATION AND RELIABILITY IN COLLECTIVE GOODS THE CASE OF THE ONLINE ENCYCLOPEDIA WIKIPEDIA Denise into essentially public goods. Similar to other public goods, incentives for reputation and group identity appear such goods. In this paper we examine how contributor motivations affect the type of contributions made

Smith, Sean W.

432

Grid Reliability- An Electric Utility Company's Perspective  

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

433

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

434

Performance and reliability of Multistage Bus Network  

E-Print Network (OSTI)

are then introduced. Fault tolerance and reliability of an MBN are evaluated using redundancy graphs. It is revealed that MBN in loosely coupled system can totally retain its connection capability in the presence of fault in any single component (i.e. switch, link...

Askar, Tahsin

2012-06-07T23:59:59.000Z

435

How to Estimate the Value of Service Reliability Improvements  

E-Print Network (OSTI)

smart grid investment is proposed, reliability improvement is one of the most frequently cited benefits.

Sullivan, Michael J.

2010-01-01T23:59:59.000Z

436

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.

437

ORNL/TM-2004/91 MEASUREMENT PRACTICES FOR RELIABILITY  

E-Print Network (OSTI)

;#12;1. Introduction and Discussion of the Measurement "Toolkit" This report provides a distribution reliabilityORNL/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

Oak Ridge National Laboratory

438

Resource investigation of low- and moderate-temperature geothermal areas in San Bernardino, California. Part of the third year report, 1980-81, of the US Department of Energy-California State-Coupled Program for Reservoir Assessment and Confirmation  

SciTech Connect

Ninety-seven geothermal wells and springs were identified and plotted on a compiled geologic map of the 40-square-mile study area. These wells and springs were concentrated in three distinguishable resource areas: Arrowhead Hot Springs; South San Bernardino; and Harlem Hot Springs - in each of which detailed geophysical, geochemical, and geological surveys were conducted. The Arrowhead Hot Springs geothermal area lies just north of the City of San Bernardino in the San Bernardino Mountains astride a shear zone (offshoot of the San Andreas fault) in pre-Cambrian gneiss and schist. The Harlem Hot Springs geothermal area, on the east side of the City, and the south San Bernardino geothermal area, on the south side, have geothermal reservoirs in Quaternary alluvial material which overlies a moderately deep sedimentary basin bound on the southwest by the San Jacinto fault (a ground water barrier). Geothermometry calculations suggest that the Arrowhead Hot Springs geothermal area, with a maximum reservoir temperature of 142/sup 0/C, may have the highest maximum reservoir temperature of the three geothermal areas. The maximum temperature recorded by CDMG in the south San Bernardino geothermal area was 56/sup 0/C from an artesian well, while the maximum temperature recorded in the Harlem Hot Springs geothermal area was 49.5/sup 0/C at 174 meters (570 feet) in an abandoned water well. The geophysical and geological surveys delineated fault traces in association with all three of the designated geothermal areas.

Youngs, L.G.; Bezore, S.P.; Chapman, R.H.; Chase, G.W.

1981-08-01T23:59:59.000Z

439

NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report  

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

NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report The following information represents a partial sequence of events based upon Reliability Coordinator information available to NERC. It is not clear if these events caused the event or were a consequence of other events. NERC is establishing teams to study the event and will coordinate with FERC, DOE, the industry and others. NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report More Documents & Publications North American Electric Reliability Council Power Outage Update North American Electric Reliability Council Outage Announcement U.S. - Canada Power System Outage Task Force: Final Report on the

440

Federal Energy Management Program: Reliability-Centered Maintenance  

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

Reliability-Centered Maintenance to someone by E-mail Share Federal Energy Management Program: Reliability-Centered Maintenance on Facebook Tweet about Federal Energy Management Program: Reliability-Centered Maintenance on Twitter Bookmark Federal Energy Management Program: Reliability-Centered Maintenance on Google Bookmark Federal Energy Management Program: Reliability-Centered Maintenance on Delicious Rank Federal Energy Management Program: Reliability-Centered Maintenance on Digg Find More places to share Federal Energy Management Program: Reliability-Centered Maintenance on AddThis.com... Sustainable Buildings & Campuses Operations & Maintenance Federal Requirements Program Management Commissioning Metering Computerized Maintenance Management Systems

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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

Brine and Gas Flow Patterns Between Excavated Areas and Disturbed Rock Zone in the 1996 Performance Assessment for the Waste Isolation Pilot Plant for a Single Drilling Intrusion that Penetrates Repository and Castile Brine Reservoir  

SciTech Connect

The Waste Isolation Pilot Plant (WIPP), which is located in southeastern New Mexico, is being developed for the geologic disposal of transuranic (TRU) waste by the U.S. Department of Energy (DOE). Waste disposal will take place in panels excavated in a bedded salt formation approximately 2000 ft (610 m) below the land surface. The BRAGFLO computer program which solves a system of nonlinear partial differential equations for two-phase flow, was used to investigate brine and gas flow patterns in the vicinity of the repository for the 1996 WIPP performance assessment (PA). The present study examines the implications of modeling assumptions used in conjunction with BRAGFLO in the 1996 WIPP PA that affect brine and gas flow patterns involving two waste regions in the repository (i.e., a single waste panel and the remaining nine waste panels), a disturbed rock zone (DRZ) that lies just above and below these two regions, and a borehole that penetrates the single waste panel and a brine pocket below this panel. The two waste regions are separated by a panel closure. The following insights were obtained from this study. First, the impediment to flow between the two waste regions provided by the panel closure model is reduced due to the permeable and areally extensive nature of the DRZ adopted in the 1996 WIPP PA, which results in the DRZ becoming an effective pathway for gas and brine movement around the panel closures and thus between the two waste regions. Brine and gas flow between the two waste regions via the DRZ causes pressures between the two to equilibrate rapidly, with the result that processes in the intruded waste panel are not isolated from the rest of the repository. Second, the connection between intruded and unintruded waste panels provided by the DRZ increases the time required for repository pressures to equilibrate with the overlying and/or underlying units subsequent to a drilling intrusion. Third, the large and areally extensive DRZ void volumes is a significant source of brine to the repository, which is consumed in the corrosion of iron and thus contributes to increased repository pressures. Fourth, the DRZ itself lowers repository pressures by providing storage for gas and access to additional gas storage in areas of the repository. Fifth, given the pathway that the DRZ provides for gas and brine to flow around the panel closures, isolation of the waste panels by the panel closures was not essential to compliance with the U.S. Environment Protection Agency's regulations in the 1996 WIPP PA.

ECONOMY,KATHLEEN M.; HELTON,JON CRAIG; VAUGHN,PALMER

1999-10-01T23:59:59.000Z

442

A human reliability analysis of a nuclear explosives dismantlement  

SciTech Connect

This paper describes the methodology used in a human reliability analysis (HRA) conducted during a quantitative hazard assessment of a nuclear weapon disassembly process performed at the Pantex plant. The probability of human errors during the disassembly process is an extremely important aspect of estimating accident-sequence frequency for nuclear weapons processing. The methods include the systematic identification of potential human-initiated or enabled accident sequences using an accident-sequence fault tree, the extensive use of walkthroughs and videotaping of the disassembly process, and hands-on testing of postulated human errors. THERP modeling of rule-based behavior and operational data analysis of errors in skill-based behavior are described. A simple method for evaluating the approximate likelihood of nonmalevolent violations of procedures was developed and used to examine the process. The HRA occurred concurrently with process design, so considerable interaction between the analysts and designers occurred and resulted in design changes that are discussed in the paper.

Bott, T.F.

1995-07-01T23:59:59.000Z

443

DOEEA-1177 Environmental Assessment  

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

7 7 Environmental Assessment SalvageDemolition of 200 West Area, 200 East Area and 300 Area Steam Plants, Hanford Site, Richland, Washington U.S. Department of Energy Richland, Washington October 1996 DOE/EA-1177 ENVIR0NMEN"AL ASSESSMENT' FOR THE SALVAGE/DEMOLITION OF 200 WEST AREA, '200 EAST AREA, AND 300 AREA STEAM PLANTS U . S . DEPARTMENT OF ENERGY RICHLAND, WASHINGTON OCTOBER 1996 DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available origid document. DOE/EA- 1177 U.S. Department o f Energy Preface Appendices. Additional information necessary t o support an understanding of the proposed action, a1 ternati ves , and potenti a1 impacts i s provided. Comments resul ti.ng from review o

444

Current Human Reliability Analysis Methods Applied to Computerized Procedures  

SciTech Connect

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

445

Ms. Julie Smith Office of Electricity Delivery and Energy Reliability  

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

5, 2013 5, 2013 Ms. Julie Smith Office of Electricity Delivery and Energy Reliability Mail Code OE-20 U.S. Department of Energy 1000 Independence Avenue Washington, D.C. 20585 Juliea.smith@hq.doe.gov; Christopher.lawrence@hq.doe.gov Re: DOE RFI "Improving Performance of Federal Permitting and Review of Infrastructure Projects The American people support increased production and consumption of renewable energy according to credible public opinion polls. Too often the most appropriate sites for wind, solar, hydro, and other renewable generators are in rural areas that necessitate the construction of new high voltage transmission lines to deliver the energy to customer load centers. Siting such lines is a costly multi-year

446

Office of Electricity Delivery and Energy Reliability  

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

Subtopic c. References: Subtopic c. References: 1. Thomas B. Johansson, Henry Kelly, Amulya K.N. Reddy, and Robert H. Williams, "Renewable Energy: Sources for Fuels and Electricity", Island Press, 1993 2. Patrick Takahashi and Andrew Trenka, "Ocean Thermal Energy Conversion", John Wiley & sons, 1996. *All references can be accessed at: http://archive.epri.com/oceanenergy/streamenergy.html#reports OFFICE OF ELECTRICITY DELIVERY AND ENERGY RELIABILITY 28. NATURAL DISASTER REDUCTION THROUGH TECHNOLOGY The U.S. electric power sector is a critical part of our society. Virtually all aspects of residential, industrial, and commercial activities depend on safe, reliable, and affordable electricity. Electricity is among the most infrastructure-intensive segments of the energy sector - the electricity grid includes a network of 5,000 power

447

Office of Electricity Delivery and Energy Reliability  

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

Comments of Cisco Systems to Comments of Cisco Systems to Office of Electricity Delivery and Energy Reliability Department of Energy in Response to Request for Information: Addressing Policy and Logistical Challenges to Smart Grid Implementation Issued September 13, 2010 FR Doc. 2010-23251 November 30, 2010 Cisco Systems provides these Comments in response to the Request for Information ("RFI") issued by the Office of Electricity Delivery and Energy Reliability of the Department of Energy ("DOE") on September 13, 2010. The RFI seeks information across a broad range of topics, but also requests that commenters be "concise," and provide "facts and concrete recommendations that can augment the general knowledge." 1 1. Interoperability Standards and the Smart Grid

448

Sample sizes for confidence limits for reliability.  

SciTech Connect

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

449

Reliability Analysis of Brittle, Thin Walled Structures  

SciTech Connect

One emerging application for ceramics is diesel particulate filters being used order to meet EPA regulations going into effect in 2008. Diesel particulates are known to be carcinogenic and thus need to be minimized. Current systems use filters made from ceramics such as mullite and corderite. The filters are brittle and must operate at very high temperatures during a burn out cycle used to remove the soot buildup. Thus the filters are subjected to thermal shock stresses and life time reliability analysis is required. NASA GRC has developed reliability based design methods and test methods for such applications, such as CARES/Life and American Society for Testing and Materials (ASTM) C1499 “Standard Test Method for Equibiaxial Strength of Ceramics.”

Jonathan A Salem and Lynn Powers

2007-02-09T23:59:59.000Z

450

Bridging Resilience Engineering and Human Reliability Analysis  

SciTech Connect

There has been strong interest in the new and emerging field called resilience engineering. This field has been quick to align itself with many existing safety disciplines, but it has also distanced itself from the field of human reliability analysis. To date, the discussion has been somewhat one-sided, with much discussion about the new insights afforded by resilience engineering. This paper presents an attempt to address resilience engineering from the perspective of human reliability analysis (HRA). It is argued that HRA shares much in common with resilience engineering and that, in fact, it can help strengthen nascent ideas in resilience engineering. This paper seeks to clarify and ultimately refute the arguments that have served to divide HRA and resilience engineering.

Ronald L. Boring

2010-06-01T23:59:59.000Z

451

Target structural reliability in life cycle consideration  

Science Journals Connector (OSTI)

The concept of minimising life cycle cost can be rationally applied to determine a target reliability of structures. However, there has been a recent legal requirement to reduce CO2 emissions, therefore, the minimisation of life cycle CO2 emission could be an alternative approach in structural design. This paper explains the general formulae for deciding the optimum reliability by minimising the total life cycle cost and the amount of CO2 emission in the structure's lifetime, and also shows that these formulae can be applied to decision making for the cost-benefit problem related to seismic strengthening of structures. Additionally, the role of the engineer is discussed, reflecting the current situation in Japan.

Jun Kanda; Tsuyoshi Takada; Hang Choi

2007-01-01T23:59:59.000Z

452

Reliability and the Federal Energy Regulatory Commission  

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

and the Federal Reliability and the Federal and the Federal Reliability and the Federal Energy Regulatory Energy Regulatory Commission Commission Michael Peters Michael Peters Energy Infrastructure & Cyber Security Advisor Energy Infrastructure & Cyber Security Advisor Federal Energy Regulatory Commission Federal Energy Regulatory Commission 202 202 - - 502 502 - - 8461 8461 Michael.Peters@FERC.GOV Michael.Peters@FERC.GOV The views expressed in this The views expressed in this presentation do not represent the presentation do not represent the views of the Federal Energy views of the Federal Energy Regulatory Commission or the United Regulatory Commission or the United States. States. These views are the personal opinion These views are the personal opinion of Mike Peters!!!! of Mike Peters!!!! ☺ ☺ ☺ ☺ ☺ ☺

453

Site Monitoring Area Maps  

NLE Websites -- All DOE Office Websites (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...

454

Reliability based inspection scheduling of floaters  

SciTech Connect

This paper presents the development and application of reliability based inspection planning techniques for floaters. Based on previous experience from jacket structure applications optimized inspection planning (OIP) techniques for floaters are developed. The differences between floaters and jacket structures in relation to fatigue damage, redundancy levels and inspection practice are examined and reflected in the proposed methodology. The application and benefits of these techniques is demonstrated through representative analyses and important trends are highlighted through the results of a parametric sensitivity study.

Onoufriou, T.; Simpson, R.J.; Protopapas, M.

1995-12-31T23:59:59.000Z

455

CRAD, Configuration Management Assessment Plan  

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

The objective of this assessment is to determine whether a Configuration Management Program (CM) is in place which allows for the availability and retrievability of accurate information, improves response to design and operational decisions, enhances worker safety, increases facility safety and reliability, increases efficiency of work efforts, and helps maintain integrity of interfacing orders.

456

Draft Environmental Assessment  

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

Environmental Assessment Environmental Assessment for the GILA-NORTH GILA TRANSMISSION LINE REBUILD AND UPGRADE PROJECT (DOE/EA-1948) December 2013 Prepared for U.S. Department of Energy Western Area Power Administration, Desert Southwest Region Prepared by Cooperating Agencies U.S. Bureau of Reclamation, Yuma Area Office U.S. Army Corps of Engineers, Los Angeles District DRAFT Gila to North Gila Transmission Line Rebuild and Upgrade Project Environmental Assessment Prepared for: U.S. Department of Energy Western Area Power Administration Desert Southwest Region Cooperating Agencies: U.S. Bureau of Reclamation Yuma Area Office U.S. Army Corps of Engineers Los Angeles District Prepared by: December 2013 Gila to North Gila Transmission Line Rebuild and Upgrade Project

457

An Examination of Temporal Trends in Electricity Reliability Based on Reports from U.S. Electric Utilities  

SciTech Connect

Since the 1960s, the U.S. electric power system has experienced a major blackout about once every 10 years. Each has been a vivid reminder of the importance society places on the continuous availability of electricity and has led to calls for changes to enhance reliability. At the root of these calls are judgments about what reliability is worth and how much should be paid to ensure it. In principle, comprehensive information on the actual reliability of the electric power system and on how proposed changes would affect reliability ought to help inform these judgments. Yet, comprehensive, national-scale information on the reliability of the U.S. electric power system is lacking. This report helps to address this information gap by assessing trends in U.S. electricity reliability based on information reported by electric utilities on power interruptions experienced by their customers. Our research augments prior investigations, which focused only on power interruptions originating in the bulk power system, by considering interruptions originating both from the bulk power system and from within local distribution systems. Our research also accounts for differences among utility reliability reporting practices by employing statistical techniques that remove the influence of these differences on the trends that we identify. The research analyzes up to 10 years of electricity reliability information collected from 155 U.S. electric utilities, which together account for roughly 50% of total U.S. electricity sales. The questions analyzed include: 1. Are there trends in reported electricity reliability over time? 2. How are trends in reported electricity reliability affected by the installation or upgrade of an automated outage management system? 3. How are trends in reported electricity reliability affected by the use of IEEE Standard 1366-2003?

Eto, Joseph H.; LaCommare, Kristina Hamachi; Larsen, Peter; Todd, Annika; Fisher, Emily

2012-01-06T23:59:59.000Z

458

Physics-Based Stress Corrosion Cracking Component Reliability Model cast in  

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

Physics-Based Stress Corrosion Cracking Component Reliability Model Physics-Based Stress Corrosion Cracking Component Reliability Model cast in an R7-Compatible Cumulative Damage Framework Physics-Based Stress Corrosion Cracking Component Reliability Model cast in an R7-Compatible Cumulative Damage Framework The Risk-Informed Safety Margin Characterization (RISMC) pathway is a set of activities defined under the U.S. Department of Energy Light Water Reactor Sustainability Program. The overarching objective of RISMC is to support plant life-extension decision-making by providing a state-of-knowledge characterization of safety margins in key systems, structures, and components (SSCs). The methodology emerging from the RISMC pathway is not a conventional probabilistic risk assessment (PRA)-based one; rather, it relies on a reactor systems simulation framework in which

459

Physics-Based Stress Corrosion Cracking Component Reliability Model cast in  

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

Physics-Based Stress Corrosion Cracking Component Reliability Model Physics-Based Stress Corrosion Cracking Component Reliability Model cast in an R7-Compatible Cumulative Damage Framework Physics-Based Stress Corrosion Cracking Component Reliability Model cast in an R7-Compatible Cumulative Damage Framework The Risk-Informed Safety Margin Characterization (RISMC) pathway is a set of activities defined under the U.S. Department of Energy Light Water Reactor Sustainability Program. The overarching objective of RISMC is to support plant life-extension decision-making by providing a state-of-knowledge characterization of safety margins in key systems, structures, and components (SSCs). The methodology emerging from the RISMC pathway is not a conventional probabilistic risk assessment (PRA)-based one; rather, it relies on a reactor systems simulation framework in which

460

Assessment of the Adequacy of Natural Gas Pipeline Capacity in the  

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

Assessment of the Adequacy of Natural Gas Pipeline Capacity in the Assessment of the Adequacy of Natural Gas Pipeline Capacity in the Northeast United States - November 2013 Assessment of the Adequacy of Natural Gas Pipeline Capacity in the Northeast United States - November 2013 In 2005-06, the Office of Electricity Delivery and Energy Reliability (OE) conducted a study on the adequacy of interstate natural gas pipeline capacity serving the northeastern United States to meet natural gas demand in the event of a pipeline disruption. The study modeled gas demand for select market areas in the Northeast under a range of different weather conditions. The study then determined how interstate pipeline flow patterns could change in the event of a pipeline disruption to one or more of the pipelines serving the region in order to meet the gas demand. The results

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

Historical Background on the Performance Assessment for the Waste Isolation Pilot Plant  

SciTech Connect

In 1979, six years after selecting the Delaware Basin as a potential disposal area, Congress authorized the U.S. Department of Energy to build the Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico, as a Research and development facility for the safe management storage, and disposal of waste contaminated with transuranic radioisotopes. In 1998, 19 years after authorization and after site selection, the U.S. Environmental Protection Agency (EPA) certified that the WIPP disposal system complied with its regulations. The EPA's decision was primarily based on the results from a performance. assessment conducted in 1996, which is summarized in this special issue of Reliability Engineering and System Safety. This performance assessment was the culmination of four preliminary performance assessments conducted between 1989 and 1992. This paper provides a historical setting and context for how the performance of the deep geologic repository at the WIPP was analyzed. Also included is background on political forces acting on the project.

RECHARD,ROBERT P.

1999-10-21T23:59:59.000Z

462

College of Electricity Delivery and Energy Reliability | Department of  

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

Electricity Delivery and Energy Reliability Electricity Delivery and Energy Reliability College of Electricity Delivery and Energy Reliability College of Electricity Delivery and Energy Reliability Vision OE recognizes that our Nation's sustained economic prosperity, quality of life, and global competitiveness depend on access to an abundance of secure, reliable, and affordable energy resources. Through a mix of technology and policy solutions, we will address the changing dynamics and uncertainties in which the electric system will operate. We will leverage effective partnerships, solid research, and best practices to address diverse interests in achieving economic, societal, and environmental objectives. Resources Explore the following topics at OE's College of Electricity Delivery and Energy Reliability:

463

NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report  

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

NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report The following information represents a partial sequence of events based upon Reliability Coordinator information available to NERC. It is not clear if these events caused the event or were a consequence of other events. NERC is establishing teams to study the event and will coordinate with FERC, DOE, the industry and others. NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report More Documents & Publications North American Electric Reliability Council Power Outage Update Blackout 2003: Final Report on the August 14, 2003 Blackout in the United States and Canada: Causes and Recommendations

464

Global Nuclear Energy Partnership Fact Sheet - Establish Reliable Fuel  

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

Global Nuclear Energy Partnership Fact Sheet - Establish Reliable Global Nuclear Energy Partnership Fact Sheet - Establish Reliable Fuel Services Global Nuclear Energy Partnership Fact Sheet - Establish Reliable Fuel Services GNEP would build and strengthen a reliable international fuel services consortium under which "fuel supplier nations" would choose to operate both nuclear power plants and fuel production and handling facilities, providing reliable fuel services to "user nations" that choose to only operate nuclear power plants. This international consortium is a critical component of the GNEP initiative to build an improved, more proliferation-resistant nuclear fuel cycle that recycles used fuel, while Global Nuclear Energy Partnership Fact Sheet - Establish Reliable Fuel Services More Documents & Publications

465

Potential climatic impacts and reliability of large-scale offshore wind farms  

Science Journals Connector (OSTI)

The vast availability of wind power has fueled substantial interest in this renewable energy source as a potential near-zero greenhouse gas emission technology for meeting future world energy needs while addressing the climate change issue. However, in order to provide even a fraction of the estimated future energy needs, a large-scale deployment of wind turbines (several million) is required. The consequent environmental impacts, and the inherent reliability of such a large-scale usage of intermittent wind power would have to be carefully assessed, in addition to the need to lower the high current unit wind power costs. Our previous study (Wang and Prinn 2010 Atmos. Chem. Phys. 10 2053) using a three-dimensional climate model suggested that a large deployment of wind turbines over land to meet about 10% of predicted world energy needs in 2100 could lead to a significant temperature increase in the lower atmosphere over the installed regions. A global-scale perturbation to the general circulation patterns as well as to the cloud and precipitation distribution was also predicted. In the later study reported here, we conducted a set of six additional model simulations using an improved climate model to further address the potential environmental and intermittency issues of large-scale deployment of offshore wind turbines for differing installation areas and spatial densities. In contrast to the previous land installation results, the offshore wind turbine installations are found to cause a surface cooling over the installed offshore regions. This cooling is due principally to the enhanced latent heat flux from the sea surface to lower atmosphere, driven by an increase in turbulent mixing caused by the wind turbines which was not entirely offset by the concurrent reduction of mean wind kinetic energy. We found that the perturbation of the large-scale deployment of offshore wind turbines to the global climate is relatively small compared to the case of land-based installations. However, the intermittency caused by the significant seasonal wind variations over several major offshore sites is substantial, and demands further options to ensure the reliability of large-scale offshore wind power. The method that we used to simulate the offshore wind turbine effect on the lower atmosphere involved simply increasing the ocean surface drag coefficient. While this method is consistent with several detailed fine-scale simulations of wind turbines, it still needs further study to ensure its validity. New field observations of actual wind turbine arrays are definitely required to provide ultimate validation of the model predictions presented here.

Chien Wang; Ronald G Prinn

2011-01-01T23:59:59.000Z

466

E-Print Network 3.0 - assessment chief joseph Sample Search Results  

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

Objective assessment Source: Collection: Engineering 84 *indicates change 1 BEFORE THE ENERGY RESOURCES CONSERVATION AND DEVELOPMENT Summary: for Reliable Energy co Adams...

467

E-Print Network 3.0 - artery stenosis assessment Sample Search...  

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

in long-term renal artery stenosis. However, our primary aim was to gradually assess the effect... are a fast and reliable technique to ... Source: Just, Armin - Physiologisches...

468

Topic A and B Awardee: Electric Reliability Council of Texas | Department  

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

Technology Development » Transmission Planning » Technology Development » Transmission Planning » Recovery Act Interconnection Transmission Planning » Learn More About Interconnections » Topic A and B Awardee: Electric Reliability Council of Texas Topic A and B Awardee: Electric Reliability Council of Texas The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to 22 million Texas customers - representing 85 percent of the state's electric load and 75 percent of the Texas land area. As the independent system operator for the region, ERCOT schedules power on an electric grid that connects 40,000 miles of transmission lines and more than 550 generation units. ERCOT also manages financial settlement for the competitive wholesale bulk-power market and administers customer switching

469

Understanding Bulk Power Reliability: The Importance of Good Data and A Critical Review of Existing Sources  

E-Print Network (OSTI)

for Electric Power Distribution Reliability Indices. ISBN 0-to report distribution system reliability for each dataset

Fisher, Emily

2012-01-01T23:59:59.000Z

470

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

SciTech Connect

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

471

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

E-Print Network (OSTI)

the first stage of the decomposition process. 19 Subset of acceptable states MlM2 . . . M? A, V, 2 vl ? 1 M2 ~ . M? Ll ml m2 ~ ~ ~ ~ ~ ~ 7B? ul ? 1 M2 ~ M? Ul Vl V2 Ml v2 ? 1 ~ M? L2 vl pn2 Mlul ? 1 M? Ul Bl V2 Ml M2 . . . M? Subset... of unclassified states being decomposed MlM2 . v?? 1 Vl V2 ~ ~ ~ ~ Bl? Ml Ml . -. . u?? 1 U. ul G2 ''' ' V? Disjoint subsets of system loss-of-load states Disjoint subsets of unclassified states Fig. 2. Decomposition of an unclassified set U 20 2...

Pathak, Rajesh

2012-06-07T23:59:59.000Z

472

Availability and Reliability Issues for ILC  

SciTech Connect

The International Linear Collider (ILC) will be the largest most complicated accelerator ever built. For this reason extensive work is being done early in the design phase to ensure that it will be reliable enough. This includes gathering failure mode data from existing accelerators and simulating the failures and repair times of the ILC. This simulation has been written in a general fashion using MATLAB and could be used for other accelerators. Results from the simulation tool have been used in making some of the major ILC design decisions and an unavailability budget has been developed.

Himel, T.; Nelson, J.; Phinney, N.; /SLAC; Ross, M.; /Fermilab

2007-06-27T23:59:59.000Z

473

Performance and Reliability of Quantum Cascade Lasers  

SciTech Connect

We present the burn-in behavior and power stability of multiple quantum cascade lasers (QCLs) that were measured to investigate their long-term performance. For these experiments, the current to the QCL was cycled every ten minutes, and the output power was monitored over time for durations as long as two months. A small increase in power for a given injection current is observed for almost all of the QCLs tested during the burn-in period. The data from these experiments will be presented along with the effects of packaging the QCLs to determine the impact on performance and reliability.

Myers, Tanya L.; Cannon, Bret D.; Taubman, Matthew S.; Bernacki, Bruce E.

2013-05-01T23:59:59.000Z

474

Using Fragmentation To Increase Reliability For Workflow Systems  

Science Journals Connector (OSTI)

In a large organization, at any moment there may exist a large number of process instances. If a failure occurs a considerable number of them may be affected. Thus enhancing reliability is an important issue in workflow applications. Traditionally, reliability ...

J. Tang; J. Veijalainen

1999-04-01T23:59:59.000Z

475

2014 Reliability & Markets Peer Review- Day 1 Presentations  

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

The Transmission Reliability R&D Reliability & Markets Peer Review included 6 sessions over 2 days on August 5 - 6, 2014. Presentations from Day 1 (Sessions I through IV) are available here.

476

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

477

The effect of Relay Protection on the Substation Reliability  

Science Journals Connector (OSTI)

This paper presents a model for evaluating the reliability of the substation actions after transmission grid faults. The model ... of different line protection systems by using the substation reliability model is...

Liisa Pottonen; Urho Pulkkinen…

2004-01-01T23:59:59.000Z

478

Reliability in Automotive Engineering by Fuzzy Rule-Based FMEA  

Science Journals Connector (OSTI)

The Failure Modes and Effects Analysis (FMEA) is a reliability estimation method intended to ... used to distinguish these methods. The fuzzy FMEA is a quantitative method of reliability or...

László Pokorádi; Tímea Fülep

2013-01-01T23:59:59.000Z

479

Systematic evaluation of the reliability of marine diesel engines  

Science Journals Connector (OSTI)

A systematic model is proposed for evaluating the operational reliability of marine diesel engines. In mathematical terms, the model is ... permits the estimation of the overall reliability of marine diesel engines

G. S. Gamidov; N. K. Sanaev; Z. I. Adeev

2009-05-01T23:59:59.000Z

480

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

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481

Case Study: Fuel Cells Increase Reliability at First National...  

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

Increase Reliability at First National Bank of Omaha Case Study: Fuel Cells Increase Reliability at First National Bank of Omaha First National Bank of Omaha installed a fuel cell...

482

2013 Annual Planning Summary for the Western Area Power Administration  

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

The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2013 and 2014 within the Western Area Power Administration.

483

2011 Annual Planning Summary for Western Area Power Administration (WAPA)  

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

The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2011 and 2012 within the Western Area Power Administration (WAPA).

484

2013 Annual Planning Summary for the Southwestern Area Power Administration  

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

The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2013 and 2014 for the Southwestern Area Power Administration.

485

Human Reliability Program (HRP) - HPMC Occupational Health Services  

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

Analysis Human Reliability Program (HRP) Industrial Rehabilitation & Ergonomics Infection Control & Immunizations Influenza Immunization Program Medical Exam Scheduling Medical...

486

Improving the Design Reliability of Petroleum Pipeline Components on Repair  

Science Journals Connector (OSTI)

Developments are considered that may appreciably improve the design reliability in the repair of petroleum pipeline components.

I. N. Karelin

487

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