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


1

North American Electric Reliability Council Power Outage Update |  

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

Power Outage Update Power Outage Update North American Electric Reliability Council Power Outage Update The bulk electric transmission system in the United States and Canada has been restored and is operating reliably. Many of the generating units that tripped off line during the outage have returned to service and additional generating units are expected to return to service over the weekend. Virtually all customers have been returned to electric service, although some customers will continue to experience rotating outages due to generating capacity availability. North American Electric Reliability Council Power Outage Update More Documents & Publications Electric System Update: Sunday August 17, 2003 North American Electric Reliability Council Outage Announcement NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report

2

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

3

A stochastic model for the measurement of electricity outage costs  

SciTech Connect

The measurement of customer outage costs has recently become an important subject of research for electric utilities. This paper uses a stochastic dynamic model as the starting point in developing a market-based method for the evaluation of outage costs. Specifically, the model postulates that once an electricity outage occurs, all production activity stops. Full production is resumed once the electricity outage is over. This process repeats itself indefinitely. The business customer maximizes his expected discounted profits (the expected value of the firm), taking into account his limited ability to respond to repeated random electricity outages. The model is applied to 11 industrial branches in Israel. The estimates exhibit a large variation across branches. 34 refs., 3 tabs.

Grosfeld-Nir, A.; Tishler, A. (Tel Aviv Univ. (Israel))

1993-01-01T23:59:59.000Z

4

Economic Benefits of Increasing Electric Grid Resilience to Weather Outages  

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

Economic Benefits of Increasing Electric Grid Resilience to Weather Economic Benefits of Increasing Electric Grid Resilience to Weather Outages Economic Benefits of Increasing Electric Grid Resilience to Weather Outages In June 2011, President Obama released A Policy Framework for the 21st Century Grid which set out a four-pillared strategy for modernizing the electric grid. The initiative directed billions of dollars toward investments in 21st century smart grid technologies focused at increasing the grid's efficiency, reliability, and resilience, and making it less vulnerable to weather-related outages and reducing the time it takes to restore power after an outage occurs. Grid resilience is increasingly important as climate change increases the frequency and intensity of severe weather. Greenhouse gas emissions are elevating air and water temperatures around the world. Scientific research

5

A statistical model for risk management of electric outage forecasts  

Science Conference Proceedings (OSTI)

Risk management of power outages caused by severe weather events, such as hurricanes, tornadoes, and thunderstorms, plays an important role in electric utility distribution operations. Damage prediction based on weather forecasts on an appropriate spatial ...

H. Li; L. A. Treinish; J. R. M. Hosking

2010-05-01T23:59:59.000Z

6

Environmental determinants of unscheduled residential outages in the electrical power distribution of Phoenix, Arizona  

E-Print Network (OSTI)

problem. We model electric interruptions using outage data between the years of 2002 and 2005 across, and interactions between the two. We model electric interruptions using outage data for the years 2002;22:117­21. [14] Fritts TH. Economic costs of electrical system instability and power outages caused by snakes

7

A framework and review of customer outage costs: Integration and analysis of electric utility outage cost surveys  

Science Conference Proceedings (OSTI)

A clear understanding of the monetary value that customers place on reliability and the factors that give rise to higher and lower values is an essential tool in determining investment in the grid. The recent National Transmission Grid Study recognizes the need for this information as one of growing importance for both public and private decision makers. In response, the U.S. Department of Energy has undertaken this study, as a first step toward addressing the current absence of consistent data needed to support better estimates of the economic value of electricity reliability. Twenty-four studies, conducted by eight electric utilities between 1989 and 2002 representing residential and commercial/industrial (small, medium and large) customer groups, were chosen for analysis. The studies cover virtually all of the Southeast, most of the western United States, including California, rural Washington and Oregon, and the Midwest south and east of Chicago. All variables were standardized to a consistent metric and dollar amounts were adjusted to the 2002 CPI. The data were then incorporated into a meta-database in which each outage scenario (e.g., the lost of electric service for one hour on a weekday summer afternoon) is treated as an independent case or record both to permit comparisons between outage characteristics and to increase the statistical power of analysis results. Unadjusted average outage costs and Tobit models that estimate customer damage functions are presented. The customer damage functions express customer outage costs for a given outage scenario and customer class as a function of location, time of day, consumption, and business type. One can use the damage functions to calculate outage costs for specific customer types. For example, using the customer damage functions, the cost experienced by an ''average'' customer resulting from a 1 hour summer afternoon outage is estimated to be approximately $3 for a residential customer, $1,200 for small-medium commercial and industrial customer, and $82,000 for large commercial and industrial customer. Future work to improve the quality and coverage of information on the value of electricity reliability to customers is described.

Lawton, Leora; Sullivan, Michael; Van Liere, Kent; Katz, Aaron; Eto, Joseph

2003-11-01T23:59:59.000Z

8

Electricity restored to many in the Northeast but outages persist ...  

U.S. Energy Information Administration (EIA)

Electricity. Sales, revenue and prices, power plants, fuel use, ... Most of these costs will be passed on to retail consumers through higher electricity rates, ...

9

August 14, 2003 Power Outages … Announcement  

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

Ellen P. Vancko Ellen P. Vancko evancko@nerc.com Power Outage Update ⎯ 8/16/2003 11 a.m. EDT The bulk electric transmission system in the United States and Canada has been restored and is operating reliably. Many of the generating units that tripped off line during the outage have returned to service and additional generating units are expected to return to service over the weekend. Virtually all customers have been returned to electric service, although some customers will continue to experience rotating outages due to generating capacity availability. Some rotating outages may also be necessary on Monday depending on the status of the generating units returning to service and the electrical demand. "NERC is conducting a thorough investigation into this event in conjunction with the regional

10

A framework and review of customer outage costs: Integration and analysis of electric utility outage cost surveys  

E-Print Network (OSTI)

Std Dev Cost Per Annual Cost Per kWh Usage Peak kW AverageStd Dev Cost Per Annual Cost Per kWh Usage Peak kW Average3-2. Logged Outage Cost per Annual kWh Figure 3-3. Logged

Lawton, Leora; Sullivan, Michael; Van Liere, Kent; Katz, Aaron; Eto, Joseph

2003-01-01T23:59:59.000Z

11

Outage Log  

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

For Users Live Status Global Queue Look Scheduled Outages Outage Log Edison Login Node Status Hopper Login Node Status Hopper User Environment Monitoring Carver Login Node Status...

12

Electricity Shortage in California: Issues for Petroleum and Natural Gas Supply  

Reports and Publications (EIA)

This report addresses the potential impact of rotating electrical outages on petroleum product and natural gas supply in California.

Information Center

2001-06-01T23:59:59.000Z

13

A framework and review of customer outage costs: Integration and analysis of electric utility outage cost surveys  

E-Print Network (OSTI)

BPA, Southern Company, Duke Energy, Southern California1999) Niagara Mohawk (1985) Duke Energy Company (1992, 1997)Gas and Electric, and Duke Energy) the same customer classes

Lawton, Leora; Sullivan, Michael; Van Liere, Kent; Katz, Aaron; Eto, Joseph

2003-01-01T23:59:59.000Z

14

Pair Production in Rotating Electric Fields  

E-Print Network (OSTI)

We explore Schwinger pair production in rotating time-dependent electric fields using the real-time DHW formalism. We determine the time evolution of the Wigner function as well as asymptotic particle distributions neglecting back-reactions on the electric field. Whereas qualitative features can be understood in terms of effective Keldysh parameters, the field rotation leaves characteristic imprints in the momentum distribution that can be interpreted in terms of interference and multiphoton effects. These phenomena may seed characteristic features of QED cascades created in the antinodes of a high-intensity standing wave laser field.

Blinne, Alexander

2013-01-01T23:59:59.000Z

15

Pair Production in Rotating Electric Fields  

E-Print Network (OSTI)

We explore Schwinger pair production in rotating time-dependent electric fields using the real-time DHW formalism. We determine the time evolution of the Wigner function as well as asymptotic particle distributions neglecting back-reactions on the electric field. Whereas qualitative features can be understood in terms of effective Keldysh parameters, the field rotation leaves characteristic imprints in the momentum distribution that can be interpreted in terms of interference and multiphoton effects. These phenomena may seed characteristic features of QED cascades created in the antinodes of a high-intensity standing wave laser field.

Alexander Blinne; Holger Gies

2013-11-07T23:59:59.000Z

16

Improving Outage Performance: Outage Optimization Process  

SciTech Connect

Planned outage performance is a key measure of how well an Nuclear Power Plant (NPP) is operated. Performance during planned outages strongly affects virtually all of a plant's performance metrics. In recognition of this fact, NPP operators worldwide have and continue to focus on improving their outage performance. The process of improving outage performance is commonly referred to as 'Outage Optimization' in the industry. This paper starts with a summary of the principles of Outage Optimization. It then provides an overview of a process in common use in the USA and elsewhere to manage the improvement of planned outages. The program described is comprehensive in that it involves managing improvement in both the Preparation and Execution phases of outage management. (author)

LaPlatney, Jere J. [AREVA NP (United States)

2006-07-01T23:59:59.000Z

17

Definition: Reduced Momentary Outages | Open Energy Information  

Open Energy Info (EERE)

Momentary Outages Momentary Outages Jump to: navigation, search Dictionary.png Reduced Momentary Outages By locating faults more accurately or adding electricity storage, momentary outages could be reduced or eliminated. Moreover, fewer customers on the same or adjacent distribution feeders would experience the momentary interruptions associated with reclosing. Momentary outages last <5 min in duration. The benefit to consumers is based on the value of service.[1] Related Terms electricity storage technologies, electricity generation, smart grid References ↑ SmartGrid.gov 'Description of Benefits' An in LikeLike UnlikeLike You like this.Sign Up to see what your friends like. line Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Reduced_Momentary_Outages&oldid=493094

18

Outage Milestone Manual for Fossil-Fueled Power Plants  

Science Conference Proceedings (OSTI)

The efficiency of an outage program and the correctness of the outage process are important to the continuous improvement and long-term success of a utility and plant. This report--based on collective industry experience; Electric Power Research Institute (EPRI) publications; and outage conference, meeting, and workshop data--provides guidance for utility and plant management and staff involved in outage planning, execution, and post-outage operations and in restarting the planning cycle in preparation f...

2010-10-19T23:59:59.000Z

19

Outage Management Guidelines for Fossil- Fueled Power Plants  

Science Conference Proceedings (OSTI)

The efficiency of an outage program and the correctness of the outage process are important to the continuous improvement and the long-term success of a utility and plant. This report, based on collective industry experience, Electric Power Research Institute (EPRI) publications, and outage conference, meeting, and workshop data, provides guidance for utility/plant management and staff involved in outage planning, execution, and post-outage operations and in restarting the planning cycle in preparation f...

2006-12-22T23:59:59.000Z

20

Outage Management Benchmarking Guideline  

Science Conference Proceedings (OSTI)

Benchmarking of power plant outages will help plants target performance improvements to specific elements of a plant outage program in order to improve overall availability, reliability, and safety while decreasing generation costs. EPRI's "Outage Management Benchmarking Guideline" builds on the Institute's fossil and nuclear plant experience with routine maintenance and extends that to outage maintenance processes. The guideline describes the initial steps in an outage benchmarking effort and 13 key ele...

2003-03-26T23:59:59.000Z

Note: This page contains sample records for the topic "rotating electrical outages" 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

Outage Effectiveness Measurement Methodology  

Science Conference Proceedings (OSTI)

The efficiency of an outage program and the correctness of the outage process are important to the continuous improvement and long-term success of the plant. This report, based on a collective of industry experience, EPRI publications, and power conference data, is an aid to utility and plant management and staff to understanding the outage effectiveness methods and metrics relative to outage planning, execution, and post-outage operations.

2004-12-15T23:59:59.000Z

22

Definition: Sustained Outage | Open Energy Information  

Open Energy Info (EERE)

Sustained Outage Sustained Outage Jump to: navigation, search Dictionary.png Sustained Outage The deenergized condition of a transmission line resulting from a fault or disturbance following an unsuccessful automatic reclosing sequence and/or unsuccessful manual reclosing procedure.[1] View on Wikipedia Wikipedia Definition A power outage (also power cut, blackout, or power failure) is a short- or long-term loss of the electric power to an area. There are many causes of power failures in an electricity network. Examples of these causes include faults at power stations, damage to electric transmission lines, substations or other parts of the distribution system, a short circuit, or the overloading of electricity mains. Power failures are particularly critical at sites where the environment and public safety are

23

Potomac River Project Outage Schedule Clarification | Department of Energy  

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

Potomac River Project Outage Schedule Clarification Potomac River Project Outage Schedule Clarification Potomac River Project Outage Schedule Clarification Docket No. EO-05-01. Order No. 202-07-02: Based on the most current information we have for both circuits, the new outage dates are listed below: Outage Duration Feeder Out April 30, 2007 - June 1, 2007 Circuit 1 June 2, 2007 - July 1, 2007 Circuit 2 Potomac River Project Outage Schedule Clarification More Documents & Publications Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) evised plan for transmission outages for the 230 kV circuits Notification of Planned 230kV Outage at Potomac River Generating Station PEPCO Comments on Special Environmental Analysis For Actions Taken Under U.S. Department of Energy Emergency Orders Regarding Operation of the

24

Potomac River Project Outage Schedule Clarification | Department of Energy  

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

River Project Outage Schedule Clarification River Project Outage Schedule Clarification Potomac River Project Outage Schedule Clarification Docket No. EO-05-01. Order No. 202-07-02: Based on the most current information we have for both circuits, the new outage dates are listed below: Outage Duration Feeder Out April 30, 2007 - June 1, 2007 Circuit 1 June 2, 2007 - July 1, 2007 Circuit 2 Potomac River Project Outage Schedule Clarification More Documents & Publications Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) evised plan for transmission outages for the 230 kV circuits PEPCO Comments on Special Environmental Analysis For Actions Taken Under U.S. Department of Energy Emergency Orders Regarding Operation of the Potomac River Generating Station in Alexandria, Virginia

25

A rotating suspended liquid film as an electric generator  

E-Print Network (OSTI)

We have observed that a rotating liquid film generates electricity when a large external electric field is applied in the plane of the film. In our experiment suspended liquid film (soap film) is formed on a circular frame positioned horizontally on a rotating motor. This devise is located at the center of two capacitor-like vertical plates to apply external electric field in X-direction.The produced electric energy is piked up by two brushes in Y-direction of the suspended liquid film. We previously reported that a liquid film in an external electric field rotates when an electric current passes through it, naming it the liquid film motor (LFM). In this letter we report that the same system can be used as an electric generator, converting the rotating mechanical energy to an electric energy. The liquid film electric generator (LFEG) is in stark contrast to the LFM, both of which could be designed in very small scales like micro scales applicable in lab on a chip. The device is comparable to commercial DC ele...

Amjadi, Ahmad; Namin, Reza Montazeri

2013-01-01T23:59:59.000Z

26

A rotating suspended liquid film as an electric generator  

E-Print Network (OSTI)

We have observed that a rotating liquid film generates electricity when a large external electric field is applied in the plane of the film. In our experiment suspended liquid film (soap film) is formed on a circular frame positioned horizontally on a rotating motor. This devise is located at the center of two capacitor-like vertical plates to apply external electric field in X-direction.The produced electric energy is piked up by two brushes in Y-direction of the suspended liquid film. We previously reported that a liquid film in an external electric field rotates when an electric current passes through it, naming it the liquid film motor (LFM). In this letter we report that the same system can be used as an electric generator, converting the rotating mechanical energy to an electric energy. The liquid film electric generator (LFEG) is in stark contrast to the LFM, both of which could be designed in very small scales like micro scales applicable in lab on a chip. The device is comparable to commercial DC electric motors or DC electric generators. but there is a significant difference in their working principle; in a DC electric motor or generator the Lorence force is the driving force, while in an LFEG the Coulomb force is the deriving force. So in despite to usual electric generators, this generator does not use a magnetic field and is purely electrical, which brings a similarity to bio mechanisms. We have investigated the characteristics of such a generator experimentally. This investigation sheds light on the physics of Electrohydrodynamics on liquid films.

Ahmad Amjadi; Sadegh Feiz; Reza Montazeri Namin

2013-05-30T23:59:59.000Z

27

Extended outages at several nuclear plants led to high outage ...  

U.S. Energy Information Administration (EIA)

Outages at U.S. nuclear power plants so far in 2012 are generally higher than in recent years because of extended forced outages at four nuclear power plants.

28

Transmission outage data collection for multiple related outage events  

SciTech Connect

This paper focuses on the information required to provide a basis for the analysis of forced multiple outage events. It recaps research as well as the bulk transmission outage collection up-rate that was performed. This paper identifies trends and addresses their impact on bulk transmission outage data collection.

Lauby, M.G. (Electric Power Research Inst., Palo Alto, CA (USA)); Maillant, G.R. (Electricite de France (EDF)

1989-01-01T23:59:59.000Z

29

Outage managment and health physics issue, 2008  

SciTech Connect

The focus of the May-June issue is on outage management and health physics. Major articles include: Outage optimization initiatives, by George B. Beam, AREVA NP, Inc.; New plant based on excellent track records, by Jim Scarola, Progress Energy; Meeting customer needs and providing environmental benefits, by Peter S. Hastings, Duke Energy; Plants with 3-D design, by Jack A. Bailey, Tennessee Valley Authority; and Highest quality with exceptional planning, by Jason A. Walls, Duke Energy. Industry innovation articles include: Integrated exposure reduction plan, by Ed Wolfe, Exelon; Performance-based radiation worker training, by Joe Giuffre and Timothy Vriezerma, American Electric Power.

Agnihotri, Newal (ed.)

2008-05-15T23:59:59.000Z

30

Definition: Cascading Outage | Open Energy Information  

Open Energy Info (EERE)

Cascading Outage Cascading Outage Jump to: navigation, search Dictionary.png Cascading Outage The uncontrolled successive loss of system elements triggered by an incident at any location. Cascading results in widespread electric service interruption that cannot be restrained from sequentially spreading beyond an area predetermined by studies.[1] View on Wikipedia Wikipedia Definition A cascading failure is a failure in a system of interconnected parts in which the failure of a part can trigger the failure of successive parts. Such a failure may happen in many types of systems, including power transmission, computer networking, finance and bridges. Cascading failures usually begin when one part of the system fails. When this happens, nearby nodes must then take up the slack for the failed component. This overloads

31

Mitigation of Animal-Caused Outages For Distribution Lines and Substations  

Science Conference Proceedings (OSTI)

A significant number of electric outages throughout North America are caused by animals -- mammals, birds, snakes, etc. These animal-caused outages are increasingly common in both urban and residential areas. By taking a pro-active approach to mitigating outages, utilities will spare the lives of wildlife and address the increasing pressures from environmental groups and concerned utility customers. This document describes a study designed to mitigate animal-caused outages for distribution lines and subs...

1999-12-20T23:59:59.000Z

32

Homeowners: Respond to Power Outages | Department of Energy  

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

Power Outages Power Outages Homeowners: Respond to Power Outages Homeowners: Respond to Power Outages After a disaster, electric utilities and government officials will first work to restore power to critical infrastructure like power plants and transmission lines, water treatment facilities, and telecommunications networks, and also to hospitals, critical care facilities, and emergency response agencies. It may take several days or even weeks to restore power to individual homeowners, but here's what you can do to help prepare and recover power more quickly: Charge mobile devices-If you have power, charge your cell phones, laptops, and other mobile devices so they'll have the maximum amount of battery power stored in the event of a power outage. These devices will help you communicate with your power company, and they'll help you stay

33

Outage dose reduction achievements during shorter refueling outages  

SciTech Connect

Achievement of dose reduction goals has been demonstrated at the Limerick Generating Station during the past three refueling outages in 1995-96. Shorter refueling outages were accomplished by carefully selecting outage work and thoroughly planning the work. Limerick Unit 1 completed its outage in 35 d; Unit 2 in 23 d in 1995; Unit 1 completed its outage in 24 d in 1996. The four previous outages at Unit I had taken from 100 to 127 days. European plants were visited by plant supervisors to develop improved management approaches to optimizing outage performance from work planning to work implement. Cofrentes in Spain and KKL Leibstadt in Switzerland were visited in 1994 because of their similar design and outage durations consistently below 35 d. This paper describes the radiation protection practices observed at European plants and implemented at Limerick to achieve efficiency of work practices and adequacy of radiological controls. Specific radiation protection initiatives discussed include electronic dosimetry system, break areas, wash sinks, scrub suits, zone mapping and self-monitoring. Outage achievements in 1995 and 1996 has assured Limerick continued BWR industry leadership as the lowest annual person-rem BWRs in the U.S..

Harris, W.O.; Taylor, S. [Limerick Generating Station, Sanatoga, PA (United States)

1996-06-01T23:59:59.000Z

34

Department of Energy Order No. 202-05-03 Notice of Planned Outages...  

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

Outages, in Sequence During January 2006 More Documents & Publications Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power...

35

Rotating charged black holes accelerated by an electric field  

E-Print Network (OSTI)

The Ernst method of removing nodal singularities from the charged C-metric representing uniformly accelerated black holes with mass $m$, charge $q$ and acceleration $A$ by "adding" an electric field $E$ is generalized. Utilizing the new form of the C-metric found recently, Ernst's simple "equilibrium" condition $mA=qE$ valid for small accelerations is generalized for arbitrary $A$. The nodal singularity is removed also in the case of accelerating and rotating charged black holes, and the corresponding equilibrium condition is determined.

Jiri Bicak; David Kofron

2010-06-21T23:59:59.000Z

36

Stator for a rotating electrical machine having multiple control windings  

DOE Patents (OSTI)

A rotating electric machine is provided which includes multiple independent control windings for compensating for rotor imbalances and for levitating/centering the rotor. The multiple independent control windings are placed at different axial locations along the rotor to oppose forces created by imbalances at different axial locations along the rotor. The multiple control windings can also be used to levitate/center the rotor with a relatively small magnetic field per unit area since the rotor and/or the main power winding provides the bias field.

Shah, Manoj R. (Latham, NY); Lewandowski, Chad R. (Amsterdam, NY)

2001-07-17T23:59:59.000Z

37

Stator for Rotating Electrical Machine Having Multiple Controlwindings  

DOE Patents (OSTI)

A rotating electric machine is provided which includes multiple independent control windings for compensating for rotor imbalances and for levitating/centering the rotor. The multiple independent control windings are placed at different axial locations along the rotor to oppose forces created by imbalances at different axial locations along the rotor. The multiple control windings can also be used to levitate/center the rotor with a relatively small magnetic field per unit area since the rotor and/or the main power winding provides the biasfield.

Shah, Manoj R.; Lewandowski, Chad R.

1999-05-05T23:59:59.000Z

38

Cell outage management in LTE networks  

Science Conference Proceedings (OSTI)

Cell outage management is a functionality aiming to automatically detect and mitigate outages that occur in radio networks due to unexpected failures. We envisage that future radio networks autonomously detect an outage based on measurements, from e.g., ...

M. Amirijoo; L. Jorguseski; T. Krner; R. Litjens; M. Neuland; L. C. Schmelz; U. Trke

2009-09-01T23:59:59.000Z

39

Notice of Unplanned Outage at the Mirant Potomac River Plant | Department  

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

Unplanned Outage at the Mirant Potomac River Plant Unplanned Outage at the Mirant Potomac River Plant Notice of Unplanned Outage at the Mirant Potomac River Plant Docket No. EO-05-01. Order No. 202-05-03: Pursuant to the United States Department of Energy ("DOE") Order No_ 202-05-3, issued December 20, 2005 ("DOE Potomac River Order"), Pepco hereby files this notice of an unplanned outage of one of the 230kV circuits serving the Potomac River Substation, and through that station, the District of Columbia. Notice of Unplanned Outage at the Mirant Potomac River Plant More Documents & Publications Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits Further Notice of 230kV Circuit Planned Outages

40

Notification of Planned 230kV Outage at Potomac River Generating Station |  

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

Notification of Planned 230kV Outage at Potomac River Generating Notification of Planned 230kV Outage at Potomac River Generating Station Notification of Planned 230kV Outage at Potomac River Generating Station Docket No. EO-05-01. In accordance with DOE Order No. 202-05-03 Pepco is required to provide notification of any and all 230kV planned outages at Potomac River Generating Station. On Tuesday February 20, 2007 Potomac Electric Power Company (Pepco) will be taking a planned outage on the 23106 high voltage circuit between the Palmer's Corner Substation and the Potomac River Generating Station. Notification of Planned 230kV Outage at Potomac River Generating Station More Documents & Publications Re: Potomac River Generating Station Department of Energy Case No. EO-05-01: Advanced Notice of Power Outages. Special Environmental Analysis For Actions Taken under U.S. Department of

Note: This page contains sample records for the topic "rotating electrical outages" 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

Further Notice of 230kV Circuit Planned Outages | Department of Energy  

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

Further Notice of 230kV Circuit Planned Outages Further Notice of 230kV Circuit Planned Outages Further Notice of 230kV Circuit Planned Outages Docket No. EO-05-01. Order No. 202-05-03: Pursuant 10 the United States Department of Energy "DOE") Order No. 102-05-3, issued December 20, 2005 ("DOE Potomac River Order''), Pepco hereby files this Further Notice Of 230kV Circuit Planned Outages serving the Potomac River Substation, and through thaI station, the District of Columbia. Further Notice of 230kV Circuit Planned Outages More Documents & Publications Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages

42

Further Notice of 230kV Circuit Planned Outages | Department of Energy  

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

Further Notice of 230kV Circuit Planned Outages Further Notice of 230kV Circuit Planned Outages Further Notice of 230kV Circuit Planned Outages Docket No. EO-05-01. Order No. 202-05-03: Pursuant 10 the United States Department of Energy "DOE") Order No. 102-05-3, issued December 20, 2005 ("DOE Potomac River Order''), Pepco hereby files this Further Notice Of 230kV Circuit Planned Outages serving the Potomac River Substation, and through thaI station, the District of Columbia. Further Notice of 230kV Circuit Planned Outages More Documents & Publications Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits

43

Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages |  

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

Further Notice of 230kV Circuit Planned Further Notice of 230kV Circuit Planned Outages Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages Docket No. EO-05-01. Pursuant to the United States Department of Energy Order No. 202-05-03, issued December 20, 2005 directing Mirant Potomac River to generate electricity at Potomac River Generating Station, PEPCO hereby files this Further Notice of 230kV Circuit Planned Outages. Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages More Documents & Publications Further Notice of 230kV Circuit Planned Outages Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits Re: Potomac River Generating Station Department of Energy Case No.

44

OpenEI Community - outages  

Open Energy Info (EERE)

have been preparing for an imminent threat that could lead to a substantial and prolonged power outage for utility customers not only on the East Coast, but also as far west as...

45

Definition: Reduced Sustained Outages | Open Energy Information  

Open Energy Info (EERE)

Outages Outages Jump to: navigation, search Dictionary.png Reduced Sustained Outages A sustained outage is one lasting >5 minutes, excluding major outages and wide-scale outages. The monetary benefit of reducing sustained outages is based on the value of service (VOS) of each customer class. The VOS parameter represents the total cost of a power outage per MWh. This cost includes the value of unserved energy, lost productivity, collateral damage, administrative costs, the value of penalties and performance-based rates. Functions that lead to this benefit can reduce the likelihood that there will be an outage, allow the system to be reconfigured on the fly to help restore service to as many customers as possible, enable a quicker response in the restoration effort, or mitigate the impact of an outage

46

Synthesis of power plant outage schedules. Final technical report, April 1995-January 1996  

SciTech Connect

This document provides a report on the creation of domain theories in the power plant outage domain. These were developed in conjunction with the creation of a demonstration system of advanced scheduling technology for the outage problem. In 1994 personnel from Rome Laboratory (RL), Kaman Science (KS), Kestrel Institute, and the Electric Power Research Institute (EPRI) began a joint project to develop scheduling tools for power plant outage activities. This report describes our support for this joint effort. The project uses KIDS (Kestrel Interactive Development System) to generate schedulers from formal specifications of the power plant domain outage activities.

Smith, D.R.

1997-07-01T23:59:59.000Z

47

outages | OpenEI Community  

Open Energy Info (EERE)

66 66 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142234866 Varnish cache server outages Home Graham7781's picture Submitted by Graham7781(2002) Super contributor 29 October, 2012 - 14:46 East Coast Utilities prepare for Hurricane Sandy East Coast Hurricane Sandy OpenEI outages storm United States Utility Companies As Hurricane Sandy continues to track towards the coast of the Eastern United States, utility companies have been preparing for an imminent threat that could lead to a substantial and prolonged power outage for utility

48

Definition: Reduced Major Outages | Open Energy Information  

Open Energy Info (EERE)

Outages Outages Jump to: navigation, search Dictionary.png Reduced Major Outages A major outage is defined using the beta method, per IEEE Std 1366-2003 (IEEE Power Engineering Society 2004). The monetary benefit of reducing major outages is based on the VOS of each customer class. The VOS parameter represents the total cost of a power outage per MWh. This cost includes the value of unserved energy, lost productivity, collateral damage, the value of penalties and performance-based rates. Functions that lead to this benefit can mitigate major outages by allowing the system to be reconfigured on the fly to help restore service to as many customers as possible, enable a quicker response in the restoration effort, or mitigate the impact of an outage through islanding or alternative power supply.[1]

49

Definition: Outage Management System | Open Energy Information  

Open Energy Info (EERE)

Outage Management System Outage Management System A software application that can process outage reports from a variety of utility operational systems including SCADA, AMI, and customer phone calls, and display outage information to utility operators. The OMS can help a utility interpret outage information and determine where the likely cause of an outage may be. It can also help the utility optimize its service restoration resources.[1] Related Terms advanced metering infrastructure References ↑ https://www.smartgrid.gov/category/technology/outage_management_system [[C LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ategory: Smart Grid Definitionssmart grid,smart grid, |Template:BASEPAGENAME]]smart grid,smart grid, Retrieved from "http://en.openei.org/w/index.php?title=Definition:Outage_Management_System&oldid=502507

50

Broadcast Outages for NIST Radio Station WWVB  

Science Conference Proceedings (OSTI)

... Numerous short outages while station was undergoing maintenance and testing during daylight hours. WWVB operated at reduced power during ...

51

A two-phase spherical electric machine for generating rotating uniform magnetic fields  

E-Print Network (OSTI)

This thesis describes the design and construction of a novel two-phase spherical electric machine that generates rotating uniform magnetic fields, known as a fluxball machine. Alternative methods for producing uniform ...

Lawler, Clinton T. (Clinton Thomas)

2007-01-01T23:59:59.000Z

52

Reduce power outages  

SciTech Connect

A case history shows the cost-effectiveness of doing a reliability study on a new, grassroots refinery constructed in Venezuela. Constructing grassroots refineries in developing countries pose many challenges, especially when considering electrical power and steam supplies. Without dependable electrical and steam sources, the refinery will not operate according to design expectations. Consequently, utility systems are critical and expensive challenges that must be considered early in design. Because of tighter operating budgets, refiners are equally interested in cutting out system overdesign. Redundant backup systems are damaging in capital and operating expenditures. Using reliability analysis techniques, designers can evaluate the reliability, availability and maintainability of operating systems. In the following example, a Venezuelan operating company used a reliability analysis to: assess onstream factors for the refinery`s power plant; identify critical equipment that have the greatest impact on available electrical and steam sources; and achieve a cost-effective equipment configuration that eliminates redundant backup systems. Results from the study allowed decision-makers to initiate objective plans and created an equipment-failure database that will service the refinery for its useful life.

Goyal, R. [BAPCO, Awali (Bahrain); Ramirez, R. [Corpoven S.A., Caracas (Venezuela)

1995-06-01T23:59:59.000Z

53

Development of Methodologies for Technology Deployment for Advanced Outage Control Centers that Improve Outage Coordination, Problem Resolution and Outage Risk Management  

SciTech Connect

This research effort is a part of the Light-Water Reactor Sustainability (LWRS) Program, which is a research and development (R&D) program sponsored by Department of Energy (DOE) and performed in close collaboration with industry R&D programs that provides the technical foundations for licensing and managing the long-term, safe, and economical operation of current nuclear power plants. The LWRS program serves to help the U.S. nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. The long term viability of existing nuclear power plants in the U.S. will depend upon maintaining high capacity factors, avoiding nuclear safety issues and reducing operating costs. The slow progress in the construction on new nuclear power plants has placed in increased importance on maintaining the output of the current fleet of nuclear power plants. Recently expanded natural gas production has placed increased economic pressure on nuclear power plants due to lower cost competition. Until recently, power uprate projects had steadily increased the total output of the U.S. nuclear fleet. Errors made during power plant upgrade projects have now removed three nuclear power plants from the U.S. fleet and economic considerations have caused the permanent shutdown of a fourth plant. Additionally, several utilities have cancelled power uprate projects citing economic concerns. For the past several years net electrical generation from U.S. nuclear power plants has been declining. One of few remaining areas where significant improvements in plant capacity factors can be made is in minimizing the duration of refueling outages. Managing nuclear power plant outages is a complex and difficult task. Due to the large number of complex tasks and the uncertainty that accompanies them, outage durations routinely exceed the planned duration. The ability to complete an outage on or near schedule depends upon the performance of the outage management organization. During an outage, the outage control center (OCC) is the temporary command center for outage managers and provides several critical functions for the successful execution of the outage schedule. Essentially, the OCC functions to facilitate information inflow, assist outage management in processing information and to facilitate the dissemination of information to stakeholders. Currently, outage management activities primarily rely on telephone communication, face to face reports of status and periodic briefings in the OCC. Much of the information displayed in OCCs is static and out of date requiring an evaluation to determine if it is still valid. Several advanced communication and collaboration technologies have shown promise for facilitating the information flow into, across and out of the OCC. Additionally, advances in the areas of mobile worker technologies, computer based procedures and electronic work packages can be leveraged to improve the availability of real time status to outage managers.

Shawn St. Germain; Ronald Farris; Heather Medeman

2013-09-01T23:59:59.000Z

54

Charged fermion tunnelling from electrically and magnetically charged rotating black hole in de Sitter space  

E-Print Network (OSTI)

Thermal radiation of electrically charged fermions from rotating black hole with electric and magnetic charges in de Sitter space is considered. The tunnelling probabilities for outgoing and incoming particles are obtained and the Hawking temperature is calculated. The relation for the classical action for the particles in the black hole's background is also found.

M. M. Stetsko

2013-06-10T23:59:59.000Z

55

Broadcast Outages for NIST Radio Station WWVB  

Science Conference Proceedings (OSTI)

... Broadcast Outages for WWVB. ... WWVB will be operating at 1/2 power (35 kW) during the daylight hours on weekdays from September 14, 2009 until ...

56

Examination of the Exacter Outage-Avoidance System  

Science Conference Proceedings (OSTI)

A routine inspection program is one tool that utilities can use to reduce failures on their circuits and minimize customer outages. By identifying problems for repair before they develop into failures, an inspection program can be a cost-effective method for enhancing the quality and reliability of electric service. The present methods used to detect and locate underperforming power system hardware can be time consuming and can involve physical complexities and require line crews with bucket trucks to tr...

2009-11-30T23:59:59.000Z

57

Despite customer outages, wholesale electric markets operated ...  

U.S. Energy Information Administration (EIA)

Petroleum & Other Liquids. Crude oil, gasoline, heating oil, diesel, propane, and other liquids including biofuels and natural gas liquids. Natural Gas

58

Despite customer outages, wholesale electric markets operated ...  

U.S. Energy Information Administration (EIA)

... though the RTO did declare a Minimum Generation Event, a signal that the dispatcher could not match decreasing load and emergency reducible ...

59

Track NERSC Scheduled and Unscheduled Outages in Google Calendar  

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

Track NERSC Outages in Google Calendar Track NERSC Outages in Google Calendar March 22, 2013 by Jack Deslippe (0 Comments) Outages are now available in Google calendar form. You...

60

Managing turbine-generator outages by computer  

SciTech Connect

This article describes software being developed to address the need for computerized planning and documentation programs that can help manage outages. Downsized power-utility companies and the growing demand for independent, competitive engineering and maintenance services have created a need for a computer-assisted planning and technical-direction program for turbine-generator outages. To meet this need, a software tool is now under development that can run on a desktop or laptop personal computer to assist utility personnel and technical directors in outage planning. Total Outage Planning Software (TOPS), which runs on Windows, takes advantage of the mass data storage available with compact-disc technology by archiving the complete outage documentation on CD. Previous outage records can then be indexed, searched, and viewed on a computer with the click of a mouse. Critical-path schedules, parts lists, parts order tracking, work instructions and procedures, custom data sheets, and progress reports can be generated by computer on-site during an outage.

Reinhart, E.R. [Reinhart and Associates, Inc., Austin, TX (United States)

1997-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotating electrical outages" 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

U.S. - Canada Power System Outage Task Force: Final Report on the  

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

- Canada Power System Outage Task Force: Final Report on the - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations U.S. - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations On August 14, 2003, the largest power blackout in North American history affected an area with an estimated 50 million people and 61,800 megawatts (MW) of electric load in the states of Ohio, Michigan, Pennsylvania, New York, Vermont, Massachusetts, Connecticut and New Jersey, and the Canadian province of Ontario. U.S. - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations More Documents & Publications Blackout 2003: Blackout Final Implementation Report Blackout 2003: The August 14, 2003 Blackout One Year Later: Actions Taken

62

Notification of Planned 230kV Outage at Potomac River Generating Station |  

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

In accordance with DOE Order No. 202-05-03 Pepco is In accordance with DOE Order No. 202-05-03 Pepco is required to provide notification of any and all 230kV planned outages at Potomac River Generating Station. On Tuesday February 20, 2007 Potomac Electric Power Company (Pepco) will be taking a planned outage on the 23106 high voltage circuit between the Palmer's Corner Substation and the Potomac River Generating Station. Notification of Planned 230kV Outage at Potomac River Generating Station More Documents & Publications Re: Potomac River Generating Station Department of Energy Case No. EO-05-01: Advanced Notice of Power Outages. Special Environmental Analysis For Actions Taken under U.S. Department of Energy Emergency Orders Regarding Operation of the Potomac River Generating Station in Alexandria, Virginia

63

Electricity Shortage in California: Issues for Petroleum and Natural Gas Supply  

Gasoline and Diesel Fuel Update (EIA)

Electricity Shortage in Electricity Shortage in California: Issues for Petroleum and Natural Gas Supply 1. Summary 2. Electricity Reliability Issues in California 3. Petroleum Refineries 4. Constraints Outside the Refinery Gate 5. Petroleum Product Prices and Supply Disruptions 6. Natural Gas 7. End Notes 8. Contacts 1. Summary Industry electric reliability organizations, the California Energy Commission, and the California Independent System Operator, expect California to be subject to rotating electricity outages in the summer of 2001 during the peak afternoon demand hours. These outages are expected to affect almost all sectors of the State's economy, including crude oil and natural gas producers, petroleum refineries, and pipelines. This report addresses the potential impact of rotating electrical

64

A Review of Power Outages and Restoration Following the June 2012 Derecho |  

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

A Review of Power Outages and Restoration Following the June 2012 A Review of Power Outages and Restoration Following the June 2012 Derecho A Review of Power Outages and Restoration Following the June 2012 Derecho August 7, 2012 - 11:16am Addthis The Office of Electricity Delivery and Energy Reliability has released a report that reviews power outages and restoration efforts following the June 29, 2012 Derecho and compares them to outages and restoration efforts following other spring and summer storms in the Ohio Valley and Mid-Atlantic regions. View the Report. Addthis Related Articles Salazar, Chu Announce Major Offshore Wind Initiatives A Review of Power Outages and Restoration Following the June 2012 Derecho Response to Hurricane Irene - Restoring Power on the East Coast President Barack Obama listens to Acting Energy Secretary Daniel B. Poneman during a meeting with electric utility CEOs and trade association representatives at the Department of Energy in Washington, D.C., May 8, 2013. | Official White House Photo by Pete Souza.

65

Systems and Services Outage Notification Policy  

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

Job Logs & Analytics Job Logs & Analytics Training & Tutorials Software Accounts & Allocations Policies Acknowledge NERSC Allocation Eligibility Allocation Management Computer Security Computer Use Data Management Passwords Queue Scheduling Usage Charges System Outages Data Analytics & Visualization Data Management Policies Science Gateways User Surveys NERSC Users Group User Announcements Help Operations for: Passwords & Off-Hours Status 1-800-66-NERSC, option 1 or 510-486-6821 Account Support https://nim.nersc.gov accounts@nersc.gov 1-800-66-NERSC, option 2 or 510-486-8612 Consulting http://help.nersc.gov consult@nersc.gov 1-800-66-NERSC, option 3 or 510-486-8611 Home » For Users » Policies » System Outages Systems Outage Notification Policy To be considered a scheduled outage, the user community must be notified of

66

Definition: Forced Outage | Open Energy Information  

Open Energy Info (EERE)

Forced Outage Forced Outage Jump to: navigation, search Dictionary.png Forced Outage The removal from service availability of a generating unit, transmission line, or other facility for emergency reasons., The condition in which the equipment is unavailable due to unanticipated failure.[1] Related Terms transmission lines, transmission line 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:Forced_Outage&oldid=480310" Categories: Definitions ISGAN Definitions What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data

67

Unit-Contingent Power Purchase Agreement and Asymmetric Information About Plant Outage  

Science Conference Proceedings (OSTI)

This paper analyzes a unit-contingent power purchase agreement between an electricity distributor and a power plant. Under such a contract the distributor pays the plant a fixed price if the plant is operational and nothing if plant outage occurs. Pricing ... Keywords: electricity industry, risk allocation, spot market, unit-contingent contract

Owen Q. Wu; Volodymyr Babich

2012-04-01T23:59:59.000Z

68

Manual of Bearing Failures and Repair in Power Plant Rotating Equipment  

Science Conference Proceedings (OSTI)

Turbine bearing failures in electric utilities can be responsible for outages resulting in significant lost generation time. In addition to bearing failures in the turbogenerators, failures may occur in other rotating equipment, such as pumps, fans, and auxiliary systems. Knowledge of bearing failure mechanisms and causes allows utilities to introduce safeguards into their occurrence and take faster remedial action. EPRI released the initial report, Manual of Bearing Failures and Repair in Power Plant Ro...

2011-12-15T23:59:59.000Z

69

Electric Field Induced Rotation of Polymer Cholesteric Liquid Crystal Flakes: Mechanisms and Applications  

DOE Green Energy (OSTI)

Electric fields can induce motion of polymer cholesteric liquid crystal (pCLC) flakes suspended in a fluid medium. The platelet-shaped pCLC flakes with a Grandjean texture show strong selective reflection when lying flat in the plane of a conventional cell. As their orientation with respect to normally incident light changes, their selective reflection color shifts toward the blue and diminishes until the flakes are no longer easily visible beyond 7-12{sup o} of rotation. Reproducibility and control of motion has been observed in moderately conductive host fluid. Flakes in such hosts do not respond to a DC electric field, but they rotate 90{sup o} in an AC field within a given frequency band. The response times and frequency regions for motion depend partially on the field magnitude, the dielectric properties of the host fluid and the flake geometry. We observe flakes reorienting in less than 500 ms in an electric field of 0.17 Vrms/mm, while subsecond reorientation is seen in fields as low as 5 x 10-2 Vrms/mm. This response time is comparable with typical electronic-paper applications, but with a significantly lower electric field. Displays using pCLC flakes would not require backlighting, sheet polarizers, color filters or alignment layers. Numerous additional applications for pCLC flakes are envisioned, including filters, polarizers, and spatial light modulators.

Kosc, T. Z.; Marshall, K. L.; Jacobs, S. D.; Lambropoulous, J. C.

2002-12-31T23:59:59.000Z

70

ELECTRICITY CASE: ECONOMIC COST ESTIMATION FACTORS FOR ECONOMIC  

E-Print Network (OSTI)

of numbers of people affected DRAFT #12;6 · costs per hour of disruption or outage are used in conjunction with consequences in terms of duration, which is particularly common in electric power outages · costs per dollar for residences. Per Unit of Duration of Outage Duration as an influence in the cost of outages has received a lot

Wang, Hai

71

Transient stability enhancement of electric power generating systems by 120-degree phase rotation  

DOE Patents (OSTI)

A method and system for enhancing the transient stability of an intertied three-phase electric power generating system. A set of power exporting generators (10) is connected to a set of power importing generators (20). When a transient cannot be controlled by conventional stability controls, and imminent loss of synchronism is detected (such as when the equivalent rotor angle difference between the two generator sets exceeds a predetermined value, such as 150 degrees), the intertie is disconnected by circuit breakers. Then a switch (30) having a 120-degree phase rotation, or a circuit breaker having a 120-degree phase rotation is placed in the intertie. The intertie is then reconnected. This results in a 120-degree reduction in the equivalent rotor angle difference between the two generator sets, making the system more stable and allowing more time for the conventional controls to stabilize the transient.

Cresap, Richard L. (Portland, OR); Taylor, Carson W. (Portland, OR); Kreipe, Michael J. (Portland, OR)

1982-01-01T23:59:59.000Z

72

Contingency Analysis of Cascading Line Outage Events  

SciTech Connect

As the US power systems continue to increase in size and complexity, including the growth of smart grids, larger blackouts due to cascading outages become more likely. Grid congestion is often associated with a cascading collapse leading to a major blackout. Such a collapse is characterized by a self-sustaining sequence of line outages followed by a topology breakup of the network. This paper addresses the implementation and testing of a process for N-k contingency analysis and sequential cascading outage simulation in order to identify potential cascading modes. A modeling approach described in this paper offers a unique capability to identify initiating events that may lead to cascading outages. It predicts the development of cascading events by identifying and visualizing potential cascading tiers. The proposed approach was implemented using a 328-bus simplified SERC power system network. The results of the study indicate that initiating events and possible cascading chains may be identified, ranked and visualized. This approach may be used to improve the reliability of a transmission grid and reduce its vulnerability to cascading outages.

Thomas L Baldwin; Magdy S Tawfik; Miles McQueen

2011-03-01T23:59:59.000Z

73

Outage management and health physics issue, 2007  

SciTech Connect

The focus of the May-June issue is on outage management and health physics. Major articles/reports in this issue include: India: a potential commercial opportunity, a U.S. Department of Commerce Report, by Joe Neuhoff and Justin Rathke; The changing climate for nuclear energy, by Skip Bowman, Nuclear Energy Insitute; Selecting protective clothing, by J. Mark Price, Southern California Edison; and Succssful refurbishment outage, by Sudesh K. Gambhir, Omaha Public Power District. Industry innovation articles in this issue are: Containment radiation monitoring spiking, by Michael W. Lantz and Robert Routolo, Arizona Public Service Company; Improved outage performance, by Michael Powell and Troy Wilfong, Arizona Public Service Company, Palo Verde Nuclear Generating Station; Stop repacking valves and achieve leak-free performance, by Kenneth Hart, PPL Susquehanna LLC; and Head assembly upgrade package, by Timothy Petit, Dominion Nuclear.

Agnihotri, Newal (ed.)

2007-05-15T23:59:59.000Z

74

A Low-Noise, Microprocessor-Controlled, Internally Digitizing Rotating-Vane Electric Field Mill for Airborne Platforms  

Science Conference Proceedings (OSTI)

This paper reports on a new generation of aircraft-based rotating-vane-style electric field mills designed and built at NASAs Marshall Space Flight Center. The mills have individual microprocessors that digitize the electric field signal at the ...

M. G. Bateman; M. F. Stewart; S. J. Podgorny; H. J. Christian; D. M. Mach; R. J. Blakeslee; J. C. Bailey; D. Daskar

2007-07-01T23:59:59.000Z

75

Tracking Laser Coordinate Measurement System Application for Turbine Outage Activities  

Science Conference Proceedings (OSTI)

Tracking Laser Coordinate Measurement System Application for Turbine Outage Activities provides nuclear and fossil personnel with a faster and more accurate method for performing turbine measurement activities during an outage.

2007-12-21T23:59:59.000Z

76

Market Assessment of Refinery Outages Planned for October 2009 ...  

U.S. Energy Information Administration (EIA)

January fuel demand with availability of the refinery process units for distillate and gasoline production net of outages.

77

Fossil Power Plant Outage Scoping and Scope Control  

Science Conference Proceedings (OSTI)

This document provides detailed guidance for outage scope planning and control. It covers such topics as long-range business asset management tracking and inclusion into outage scope and contingency planning. It provides guidance on developing the outage plan, including typical criteria for the baseline budget, developing and using a monitoring plan and metrics, and developing an assessment plan for outage scope development and execution. The scope identification and approval processes are discussed as w...

2007-12-19T23:59:59.000Z

78

Pepco Update on Current Construction Work and Mirant Generation Needs for Pepco's Planned June Line Outage  

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

May 25, 2007 May 25, 2007 Kevin Kolevar Director of the Office of Electricity Deliverability and Energy Reliability Department of Energy 1000 Independence Ave., SW Washington, DC 20585 Dear Mr. Kolevar, DOE has requested that Pepco provide an update on the current work to install two new 230 kilovolt circuits into Potomac River substation and to evaluate the need for generation from the Potomac River plant to support the anticipated line outage during June, 2007. An outage on one of the 230 kV circuits is currently underway and is currently scheduled to be completed by June 2, 2007. Mirant has supported this outage with generation required to match the Potomac River area load from the substation. This has required the operation of all 5 generating units located at

79

Indication of Potential Cascading Outages Using Measurement Data  

Science Conference Proceedings (OSTI)

Many efforts have been made to avoid blackouts in North America since 1965. However, cascading outages leading to catastrophic blackouts continued to happen. This project focused on investigating a comprehensive monitoring and control framework for prediction, analysis, and mitigation of cascading outages and conducting research on the early indication of potential cascading outages using real-time measurement data.

2010-12-21T23:59:59.000Z

80

A Preliminary Analysis of Network Outages During Hurricane Sandy  

E-Print Network (OSTI)

.2.3.*). To evaluate outages, we require that, historically, at least 10% of the addresses in the block reply to pingsA Preliminary Analysis of Network Outages During Hurricane Sandy USC/ISI Technical Report ISI, linquan, yuri}@isi.edu ABSTRACT This document describes our analysis of Internet outages during

Heidemann, John

Note: This page contains sample records for the topic "rotating electrical outages" 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

Microsoft Word - 112706 Final Outage Letter PUBLIC.doc  

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

CRITICAL ENERGY INFRASTRUCTURE INFORMATION CRITICAL ENERGY INFRASTRUCTURE INFORMATION REMOVED FOR PRIVILEGED TREATMENT November 27, 2006 Lawrence Mansueti Office of Electricity Delivery and Energy Reliability U.S. Department of Energy Rm. 8H-033 1000 Independence Avenue Washington, D.C. 20585 Re: Potomac River Generating Station Department of Energy Case No. EO-05-01 Dear Mr. Mansueti: Potomac Electric Power Company ("Pepco"), on behalf of itself and PJM Interconnection, L.L.C. ("PJM"), is providing you with information regarding the planned transmission outages that are scheduled for the upcoming months. In accordance with its internal procedures developed pursuant to the December 20, 2005 order in the captioned proceeding, Order No. 202-05-03 ("December 20 Order"), Pepco will provide

82

Maintain HCUs on-line, shorten refueling outages  

SciTech Connect

This article examines how removing maintenance of hydraulic control units from the outage scope lets the outage focus available resources on critical-path items, saving significant time and money and enhancing capacity factors. Because of their cost impact, refueling outages are a prime focus of efforts to improve the competitive operation of nuclear powerplants. An approach drawing wide interest is reducing the outage work scope by performing on-line key tasks normally consigned to refueling outages. applying this approach to maintenance of hydraulic control units (HCUs) on boiling-water reactors (BWRs) can be extremely fruitful.

Bell, T.

1996-09-01T23:59:59.000Z

83

Outage management and health physics issue, 2009  

SciTech Connect

The focus of the May-June issue is on outage management and health physics. Major articles include the following: Planning and scheduling to minimize refueling outage, by Pat McKenna, AmerenUE; Prioritizing safety, quality and schedule, by Tom Sharkey, Dominion; Benchmarking to high standards, by Margie Jepson, Energy Nuclear; Benchmarking against U.S. standards, by Magnox North, United Kingdom; Enabling suppliers for new build activity, by Marcus Harrington, GE Hitachi Nuclear Energy; Identifying, cultivating and qualifying suppliers, by Thomas E. Silva, AREVA NP; Creating new U.S. jobs, by Francois Martineau, Areva NP. Industry innovation articles include: MSL Acoustic source load reduction, by Amir Shahkarami, Exelon Nuclear; Dual Methodology NDE of CRDM nozzles, by Michael Stark, Dominion Nuclear; and Electronic circuit board testing, by James Amundsen, FirstEnergy Nuclear Operating Company. The plant profile article is titled The future is now, by Julia Milstead, Progress Energy Service Company, LLC.

Agnihotri, Newal (ed.)

2009-05-15T23:59:59.000Z

84

Outage management and health physics issue, 2006  

SciTech Connect

The focus of the May-June issue is on outage management and health physics. Major articles/reports in this issue include: A design with experience for the U.S., by Michael J. Wallace, Constellation Generation Group; Hope to be among the first, by Randy Hutchinson, Entergy Nuclear; Plans to file COLs in 2008, by Garry Miller, Progress Energy; Evolution of ICRP's recommendations, by Lars-Erik Holm, ICRP; European network on education and training in radiological protection, by Michele Coeck, SCK-CEN, Belgium; Outage managment: an important tool for improving nuclear power plant performance, by Thomas Mazour and Jiri Mandula, IAEA, Austria; and Plant profile: Exploring new paths to excellence, by Anne Thomas, Exelon Nuclear.

Agnihotri, Newal (ed.)

2006-05-15T23:59:59.000Z

85

Rotating electrical machines, pt.2: Methods for determining losses and efficiency of rotating electrical machinery form tests (excl. machines for traction vehicles), 1st suppl. Measurement of losses by the calorimetric method  

E-Print Network (OSTI)

Describes methods for measuring the efficiency of electrical rotating machines either by determining total losses on load or by determination of the segregated losses for air and water cooling mediums. Applies to large generators but may be used for other machines.

International Electrotechnical Commission. Geneva

1974-01-01T23:59:59.000Z

86

RESOLVED: Projectb filesystem outage July 9, 2012  

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

RESOLVED: Projectb filesystem outage July 9, 2012 RESOLVED: Projectb filesystem outage July 9, 2012 RESOLVED: Projectb filesystem outage July 9, 2012 July 9, 2012 (0 Comments) The projectb filesystem had a hardware failure that potentially generated I/O errors. The filesystem logs indicate that the earliest abnormal event on the filesystem occurred at 9:19AM and the filesystem was taken down for maintenance at 10:42AM. The filesystem returned to service at 11:20AM. Jobs running on the cluster would not have been able to read from or write to the projectb filesystem between 10:42AM and 11:20AM. Between 9:19AM and 10:42AM one out of the 20 GPFS controllers on projectb was down, and didn't failover (as it should have). This means: 1/20 file I/O operations could have failed between 9:19AM and 10:42AM If your job was performing a large number of short reads and writes, then

87

Advanced Outage and Control Center: Strategies for Nuclear Plant Outage Work Status Capabilities  

Science Conference Proceedings (OSTI)

The research effort is a part of the Light Water Reactor Sustainability (LWRS) Program. LWRS is a research and development program sponsored by the Department of Energy, performed in close collaboration with industry to provide the technical foundations for licensing and managing the long-term, safe and economical operation of current nuclear power plants. The LWRS Program serves to help the US nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. The Outage Control Center (OCC) Pilot Project was directed at carrying out the applied research for development and pilot of technology designed to enhance safe outage and maintenance operations, improve human performance and reliability, increase overall operational efficiency, and improve plant status control. Plant outage management is a high priority concern for the nuclear industry from cost and safety perspectives. Unfortunately, many of the underlying technologies supporting outage control are the same as those used in the 1980s. They depend heavily upon large teams of staff, multiple work and coordination locations, and manual administrative actions that require large amounts of paper. Previous work in human reliability analysis suggests that many repetitive tasks, including paper work tasks, may have a failure rate of 1.0E-3 or higher (Gertman, 1996). With between 10,000 and 45,000 subtasks being performed during an outage (Gomes, 1996), the opportunity for human error of some consequence is a realistic concern. Although a number of factors exist that can make these errors recoverable, reducing and effectively coordinating the sheer number of tasks to be performed, particularly those that are error prone, has the potential to enhance outage efficiency and safety. Additionally, outage management requires precise coordination of work groups that do not always share similar objectives. Outage managers are concerned with schedule and cost, union workers are concerned with performing work that is commensurate with their trade, and support functions (safety, quality assurance, and radiological controls, etc.) are concerned with performing the work within the plants controls and procedures. Approaches to outage management should be designed to increase the active participation of work groups and managers in making decisions that closed the gap between competing objectives and the potential for error and process inefficiency.

Gregory Weatherby

2012-05-01T23:59:59.000Z

88

ELECTRICITY CASE: MAIN REPORT RISK, CONSEQUENCES, AND ECONOMIC  

E-Print Network (OSTI)

that historically, electric power outages have played a central role in disruptions of many other infrastructures path for their operation. Moreover, historically, electric power outages have played a central role event will occur increases by about 9% per year (based on actual outages between 1990 and 2004

Wang, Hai

89

Summary of Market Assessment of Upcoming Planned Refinery Outages  

Gasoline and Diesel Fuel Update (EIA)

Summary of Market Assessment of Upcoming Planned Refinery Outages Summary of Market Assessment of Upcoming Planned Refinery Outages Summary of Market Assessment of Upcoming Planned Refinery Outages Market Assessment of Upcoming Planned Refinery Outages, December 2008 - March 2009 reviews planned U.S. refinery outages from December 2008 though March 2009 in order to identify any regions where outages might create enough supply pressure to impact prices significantly. As required under Section 804 of the Energy Independence and Security Act of 2007 (Pub. L. 110-140), this report reviews the supply implications of planned refinery outages for December 2008 through March 2009, which covers the winter period when demand for distillate fuels (diesel and heating oil) is high. As a result, emphasis in this report is on distillate rather than gasoline. Refinery outages are the result of planned maintenance and unplanned outages. Maintenance is usually scheduled during the times when demand is lowest - in the first quarter and again in the fall. Unplanned outages, which occur for many reasons including mechanical failures, fires, and flooding, can occur at any time.

90

Application of Standard Maintenance Windows in PHWR Outage  

SciTech Connect

The concept of Standard Maintenance Windows has been widely used in the planned outage of light water reactor in the world. However, due to the specific feature of Pressurized Heavy Water Reactor (PHWR), it has not come to a consensus for the PHWR owners to adopt Standard Maintenance Windows for planned outage aiming at the optimization of outage duration. Third Qinshan Nuclear Power Company (TQNPC), with their experience gained in the previous outages and with reference to other PHWR power plants, has identified a set of Standard Maintenance Windows for planned outage. It can be applied to similar PHWR plants and with a few windows that are specific to Qinshan Phase III NPP. The use of these Standard Maintenance Windows in planned outage has been proved to be effective in control shutdown nuclear safety, minimize the unavailability of safety system, improve the efficient utilization of outage duration, and improved the flexibility of outage schedule in the case of emergency issue, which forced the revision of outage schedule. It has also formed a solid foundation for benchmarking. The identification of Standard Maintenance Windows and its application will be discussed with relevant cases for the common improvement of outage duration. (author)

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

2006-07-01T23:59:59.000Z

91

MIMO ARQ with Multi-bit Feedback: Outage Analysis  

E-Print Network (OSTI)

We study the asymptotic outage performance of incremental redundancy automatic repeat request (INR-ARQ) transmission over the multiple-input multiple-output (MIMO) block-fading channels with discrete input constellations. We first show that transmission with random codes using a discrete signal constellation across all transmit antennas achieves the optimal outage diversity given by the Singleton bound. We then analyze the optimal SNR-exponent and outage diversity of INR-ARQ transmission over the MIMO block-fading channel. We show that a significant gain in outage diversity is obtained by providing more than one bit feedback at each ARQ round. Thus, the outage performance of INR-ARQ transmission can be remarkably improved with minimal additional overhead. A suboptimal feedback and power adaptation rule, which achieves the optimal outage diversity, is proposed for MIMO INR-ARQ, demonstrating the benefits provided by multi-bit feedback.

Nguyen, Khoa D; Fabregas, Albert Guillen i; Letzepis, Nick

2010-01-01T23:59:59.000Z

92

Definition: Outage Detection/Reporting | Open Energy Information  

Open Energy Info (EERE)

Outage Detection/Reporting Outage Detection/Reporting Jump to: navigation, search Dictionary.png Outage Detection/Reporting A system utilizing smart meters and AMI that can notify a utility of customer power outages when the power to meters is interrupted. Generally speaking, this can be done by utilizing meters that can send a "last gasp" signal to the head-end system upon losing power, or by periodically polling meters to check status.[1] Related Terms power, advanced metering infrastructure, system References ↑ https://www.smartgrid.gov/category/technology/outage_detectionreporting [[Cat Like Like You like this.Sign Up to see what your friends like. egory: Smart Grid Definitionssmart grid,smart grid, |Template:BASEPAGENAME]]smart grid,smart grid, Retrieved from "http://en.openei.org/w/index.php?title=Definition:Outage_Detection/Reporting&oldid=502576

93

Plant maintenance and outage management issue, 2005  

SciTech Connect

The focus of the January-February issue is on plant maintenance and outage managment. Major articles/reports in this issue include: Dawn of a new era, by Joe Colvin, Nuclear Energy Institute (NEI); Plant profile: Beloyarsk NPP, Russia, by Nikolai Oshkanov, Beloyarsk NPP, Russia; Improving economic performance, by R. Spiegelberg-Planner, John De Mella, and Marius Condu, IAEA; A model for improving performance, by Pet Karns, MRO Software; ASME codes and standards, by Shannon Burke, ASME International; and, Refurbishment programs, by Craig S. Irish, Nuclear Logistics, Inc.

Agnihotri, Newal (ed.)

2005-01-15T23:59:59.000Z

94

Nuclear outages back within typical range since July following ...  

U.S. Energy Information Administration (EIA)

U.S. nuclear generator outages were above the levels of the previous four years in the second quarter of 2011 but have returned to more typical ...

95

Nuclear outages begin to increase with the start of the ...  

U.S. Energy Information Administration (EIA)

Short-Term Energy Outlook ... Search EIA.gov. A-Z Index; ... several units began to reduce their output to enter into refueling outages, ...

96

Market Assessment of Refinery Outages Planned for October 2010 ...  

U.S. Energy Information Administration (EIA)

distillation and FCC unit outages are projected to be at typical to above typical levels in the second half of 2010, with some months significantly above average in ...

97

Market Assessment of Refinery Outages Planned for March 2010 ...  

U.S. Energy Information Administration (EIA)

DOE/EIA-0641(2010)/1 Market Assessment of Refinery Outages Planned for March 2010 through June 2010 March 2010 Energy Information Administration

98

Power outages often spur questions around burying power lines ...  

U.S. Energy Information Administration (EIA)

Smart grid technology, which would allow a utility to pinpoint problems, divert power through other circuits to minimize outages, and optimize crew deployments is ...

99

Minimum-outage broadcast in wireless networks with fading channels  

Science Conference Proceedings (OSTI)

We consider the problem of cooperative broadcasting for minimum outage in wireless networks. We consider wireless multihop broadcast as a set of transmitters that transmit in a certain order. The receiving nodes are able to combine all the previous transmissions ... Keywords: broadcast, multicast, outage, wireless networks

Tolga Girici; Gulizar Duygu Kurt

2010-07-01T23:59:59.000Z

100

New tensioning equipment saves critical path time in nuclear outage  

SciTech Connect

This article examines the selection and application of new tensioning equipment for TVA`s Browns Ferry Nuclear Plant. The new device would reduce refueling outage time and radiation exposure, and require fewer personnel to operate. Results of the equipment performance during the refueling outage and problems encountered and resolved are described.

NONE

1995-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotating electrical outages" 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

Understanding the Benefits of Dispersed Grid-Connected Photovoltaics: From Avoiding the Next Major Outage to Taming Wholesale Power Markets  

SciTech Connect

Thanks to new solar resource assessment techniques using cloud cover data available from geostationary satellites, it is apparent that grid-connected PV installations can serve to enhance electric grid reliability, preventing or hastening recovery from major power outages and serving to mitigate extreme price spikes in wholesale energy markets. (author)

Letendre, Steven E.; Perez, Richard

2006-07-15T23:59:59.000Z

102

U.S. - Canada Power System Outage Task Force: Final Report on...  

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

- Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations U.S. - Canada Power System Outage Task Force: Final Report on the...

103

Technology Integration Initiative In Support of Outage Management  

SciTech Connect

Plant outage management is a high priority concern for the nuclear industry from cost and safety perspectives. Often, command and control during outages is maintained in the outage control center where many of the underlying technologies supporting outage control are the same as those used in the 1980s. This research reports on the use of advanced integrating software technologies and hand held mobile devices as a means by which to reduce cycle time, improve accuracy, and enhance transparency among outage team members. This paper reports on the first phase of research supported by the DOE Light Water Reactor Sustainability (LWRS) Program that is performed in close collaboration with industry to examine the introduction of newly available technology allowing for safe and efficient outage performance. It is thought that this research will result in: improved resource management among various plant stakeholder groups, reduced paper work, and enhanced overall situation awareness for the outage control center management team. A description of field data collection methods, including personnel interview data, success factors, end-user evaluation and integration of hand held devices in achieving an integrated design are also evaluated. Finally, the necessity of obtaining operations cooperation support in field studies and technology evaluation is acknowledged.

Gregory Weatherby; David Gertman

2012-07-01T23:59:59.000Z

104

Abstract--Integration of asset management and outage management tasks for distribution system is proposed and  

E-Print Network (OSTI)

and evaluation of the influence of optimization on the cost of system outage is elaborated. Potential benefit as the maximum tolerable value. #12;7 V. OPTIMIZED OUTAGE COST THROUGH RISK-BASED ASSESSMENT 1. Optimized outage cost through risk-based assessment Risk-based analysis is used to estimate outage cost in this paper

Kezunovic, Mladen

105

Electricity restored to many in the Northeast but outages ...  

U.S. Energy Information Administration (EIA)

Solar Energy in Brief ... and industrial) were without power at some point during or after the storm, mostly in parts of the Mid-Atlantic ... 2013. October ...

106

Japanese power companies using more LNG to generate electricity ...  

U.S. Energy Information Administration (EIA)

... which led to the accident at Tokyo Electric Power Company's (TEPCO) Fukushima Daiichi nuclear power plant and subsequent outages at other plants.

107

The Wanlass Polyphase Rotating Magnetic Device in Electric Motor and Induction Generator Applications  

E-Print Network (OSTI)

The electric motor in its present technological configuration has remained virtually unchanged since its original conception nearly 100 years ago. It would be logical to assume that a device, which has undergone such insignificant evolution, would have small impact with reference to industry. This paper will provide an introduction to the Wanlass technology and its application to induction motors and generators. This will be accomplished through analysis of motor and generator tests.

Asp, D. E.

1984-01-01T23:59:59.000Z

108

Overview of Common Mode Outages in Power Systems  

SciTech Connect

This paper is a result of ongoing activity carried out by Probability Applications for Common Mode Events (PACME) Task Force under the Reliability Risk and Probability Applications (RRPA) Subcommittee. The paper is intended to constitute a valid source of information and references about dealing with common-mode outages in power systems reliability analysis. This effort involves reviewing published literature and presenting state-of-the-art research and practical applications in the area of common-mode outages. Evaluation of available outage statistics show that there is a definite need for collective effort from academia and industry to not only recommended procedures for data collection and monitoring but also to provide appropriate mathematical models to assess such events.

Papic, Milorad; Awodele , Kehinde; Billinton, Roy; Dent, Chris; Eager, Dan; Hamoud, Gomaa; Jirutitijaroen, Panida; Kumbale, Murali; Mitra, Joydeep; Samaan, Nader A.; Schneider, Alex; Singh, Chanan

2012-11-10T23:59:59.000Z

109

Lassoing Line Outages in the Smart Power Grid  

E-Print Network (OSTI)

Fast and accurate unveiling of power line outages is of paramount importance not only for preventing faults that may lead to blackouts, but also for routine monitoring and control tasks of the smart grid, including state estimation and optimal power flow. Existing approaches are either challenged by the \\emph{combinatorial complexity} issues involved, and are thus limited to identifying single- and double-line outages; or, they invoke less pragmatic assumptions such as \\emph{conditionally independent} phasor angle measurements available across the grid. Using only a subset of voltage phasor angle data, the present paper develops a near real-time algorithm for identifying multiple line outages at the affordable complexity of solving a quadratic program via block coordinate descent iterations. The novel approach relies on reformulating the DC linear power flow model as a \\emph{sparse} overcomplete expansion, and leveraging contemporary advances in compressive sampling and variable selection using the least-abso...

Zhu, Hao

2011-01-01T23:59:59.000Z

110

New topics in coherent anti-stokes raman scattering gas-phase diagnostics : femtosecond rotational CARS and electric-field measurements.  

Science Conference Proceedings (OSTI)

We discuss two recent diagnostic-development efforts in our laboratory: femtosecond pure-rotational Coherent anti-Stokes Raman scattering (CARS) for thermometry and species detection in nitrogen and air, and nanosecond vibrational CARS measurements of electric fields in air. Transient pure-rotational fs-CARS data show the evolution of the rotational Raman polarization in nitrogen and air over the first 20 ps after impulsive pump/Stokes excitation. The Raman-resonant signal strength at long time delays is large, and we additionally observe large time separation between the fs-CARS signatures of nitrogen and oxygen, so that the pure-rotational approach to fs-CARS has promise for simultaneous species and temperature measurements with suppressed nonresonant background. Nanosecond vibrational CARS of nitrogen for electric-field measurements is also demonstrated. In the presence of an electric field, a dipole is induced in the otherwise nonpolar nitrogen molecule, which can be probed with the introduction of strong collinear pump and Stokes fields, resulting in CARS signal radiation in the infrared. The electric-field diagnostic is demonstrated in air, where the strength of the coherent infrared emission and sensitivity our field measurements is quantified, and the scaling of the infrared signal with field strength is verified.

Lempert, Walter R. (Ohio State University, Columbus, OH); Barnat, Edward V.; Kearney, Sean Patrick; Serrano, Justin Raymond

2010-07-01T23:59:59.000Z

111

A Review of Power Outages and Restoration Following the June 2012 Derecho  

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

This report reviews power outages and restoration efforts following the June 29, 2012 Derecho and compares them to outages and restoration efforts following other spring and summer storms in the...

112

Notification of Planned 230kV Outage at Potomac River Generating...  

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

to provide notification of any and all 230kV planned and unplanned outages at Potomac River Generating Station. Notification of Planned 230kV Outage at Potomac River Generating...

113

96 IEEE power & energy magazine march/april 2005 THE MASSIVE POWER OUTAGE OF  

E-Print Network (OSTI)

of power outages. These devices, which came into play during last year's blackout, typically perform for more outages and the increased cost of out- ages at the consumer level. We can-- and must96 IEEE power & energy magazine march/april 2005 T THE MASSIVE POWER OUTAGE OF August 2003

Amin, S. Massoud

114

A Framework and Review of Customer Outage Costs: Integration and Analysis of  

E-Print Network (OSTI)

by Region, Season, Day of Week, and Year 36 Table 5-2. Average Outage Costs by Duration 36 Table 5, if a calculation of the average outage cost for a given year is calculated it would be heavily influenced and Day of Week and Year of Study This problem surfaces for many of the calculations of outage costs

115

Nuclear Maintenance Applications Center: Effective Refueling Outage Preparation and Execution Guidance--Revision to 1014480  

Science Conference Proceedings (OSTI)

This report provides updated, current guidance to assist outage managers and teams during preparation and execution phases of a nuclear refueling outage. Included is guidance on how the outage activities support long-range and strategic plans developed by the site or fleet of units.

2011-12-13T23:59:59.000Z

116

A Review of Power Outages and Restoration Following the June 2012 Derecho  

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

August 2012 August 2012 A Review of Power Outages and Restoration Following the June 2012 Derecho Infrastructure Security and Energy Restoration Office of Electricity Delivery and Energy Reliability U.S. Department of Energy For Further Information This report was prepared by the Office of Electricity Delivery and Energy Reliability under the direction of Patricia Hoffman, Assistant Secretary, and William Bryan, Deputy Assistant Secretary. Specific questions about this report may be directed to Alice Lippert, Senior Technical Advisor (alice.lippert@hq.doe.gov). (Cover image from the National Weather Service) OE/ISER 8/6/2012 1 Background On June 29, 2012, a major storm system known as a derecho ("deh-REY-cho") formed and

117

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

118

How much electric supply capacity is needed to keep U.S ...  

U.S. Energy Information Administration (EIA)

Tools; Glossary All Reports ... peak electricity demand and determined that another 117 GW should be available in case of supply outages or extreme weather ...

119

Analytical Tools to Predict Distribution Outage Restoration Load. Final Project Report.  

Science Conference Proceedings (OSTI)

The main activity of this project has been twofold: (1) development of a computer model to predict CLPU(Cold Load Pickup) and (2) development of a field measurement and analysis method to obtain the input parameters of the CLPU model. The field measurement and analysis method is called the Step-Voltage-Test (STEPV). The Kootenai Electric Cooperative Appleway 51 feeder in Coeur d`Alene was selected for analysis in this project and STEPV tests were performed in winters of 92 and 93. The STEPV data was analyzed (method and results presented within this report) to obtain the Appleway 51 feeder parameters for prediction by the CLPU model. One only CLPU record was obtained in winter 1994. Unfortunately, the actual CLPU was not dramatic (short outage and moderate temperature) and did not display cyclic restoration current. A predicted Appleway 51 feeder CLPU was generated using the parameters obtained via the STEPV measurement/analysis/algorithm method at the same ambient temperature and outage duration as the measured actual CLPU. The predicted CLPU corresponds reasonably well with the single actual CLPU data obtained in winter 1994 on the Appleway 51 feeder.

Law, John

1994-11-14T23:59:59.000Z

120

HPSS Outage Tue Mar 19 - Fri Mar 22  

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

HPSS HPSS Outage Tue Mar 19 - Fri Mar 22 HPSS Outage Tue Mar 19 - Fri Mar 22 March 12, 2013 by Francesca Verdier (0 Comments) The NERSC HPSS "User" system (archive.nersc.gov) will be down for four days from Tue Mar 19 07:00 to Fri Mar 22 17:00). The system will be upgraded from HPSS version 6.2 to version 7.3. This new version of the HPSS server software is not compatible with current GridFTP servers. This means the NERSC HPSS systems will not support any grid-based transfer methods (including GlobusOnline) following the upgrade. We expect to install a fix for this problem during a scheduled downtime by the end of April. This is a major upgrade that will require users of the HPSS User system to switch to new versions of the HPSS client software tools hsi and htar.

Note: This page contains sample records for the topic "rotating electrical outages" 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

Model validation for the August 10, 1996 WSCC system outage  

SciTech Connect

A major power outage occurred in western North America on August 10, 1996. In this paper the authors describe simulation of the disturbance using a transient stability program. Initially, the sequence of events was simulated using the standard WSCC dynamic data base, and the simulations did not agree with the disturbance recordings. Several model additions and data modifications were made before the simulations approximated the disturbance recordings. These model changes are discussed in the paper.

Kosterev, D.N.; Taylor, C.W.; Mittelstadt, W.A. [Bonneville Power Administration, Portland, OR (United States). Transmission Operations and Planning

1999-08-01T23:59:59.000Z

122

Common Information Model Meter Outage Nominal Interoperability Test Procedure  

Science Conference Proceedings (OSTI)

The CIM Meter Outage Nominal Interoperability Test Procedure is one in a series of EPRI CIM Interoperability Test Procedures (ETIPs) created by EPRI whose purpose is to thoroughly document the actors, interfaces, and test steps for the interoperability testing of specific parts of the International Electrotechnical Commission (IEC) Common Information Model (CIM) standard. The Test Procedures are initially being used for EPRI demonstration tests and are intended, over time, to form the basis of a set of C...

2011-12-16T23:59:59.000Z

123

California customer load reductions during the electricity crisis: Did they help to keep the lights on?  

SciTech Connect

During summer 2001, Californians reduced electricity usage by 6 percent and average monthly peak demand by 8 percent, compared to summer 2000. These load reductions played an important role in avoiding the hundreds of hours of rotating power outages predicted several months prior. Many factors affected electricity use and peak demand in summer 2001, including weather, changes in the State's economy, and deliberate consumer responses to a variety of stimuli associated with the crisis. This paper assesses the roles played by these contributing factors, with a special focus on the extraordinary efforts made by Californians to reduce electricity consumption. We review the role of media coverage and informational campaigns on public awareness and the impact of rate increases and a variety of publicly funded programs in reducing electricity consumption. We also draw lessons for other regions that may be faced with the prospect of electricity shortages.

Goldman, Charles A.; Barbose Galen L.; Eto, Joseph H.

2002-05-01T23:59:59.000Z

124

Multipurpose Outage at a Midsize, Resource-Limited Nonpower Reactor  

SciTech Connect

The University of Florida Training Reactor (UFTR) is a light water-cooled, graphite and light water-moderated, modified Argonaut-type reactor licensed to operate at steady-state power levels up to 100 kW. The UFTR was subject to a unique and lengthy voluntary outage beginning in May 1998 following several months of gradual increases in the normal critical position totaling {approx}0.002 {Delta}k/k. The Nuclear Regulatory Commission (NRC) was updated periodically on the facility status and visited the facility twice during the outage and once since restart to normal operations on August 17, 1999. Various potential causes of this reactivity anomaly were identified. After investigation, each of these causes was eliminated with no specific cause ever identified. Despite all the inherent limitations and especially because of the difficulty of core access, this entire outage was conducted with the perspective of relicensing in 2002. Areas specifically addressed included compensating efforts to preclude loss of user clientele, acquisition of data for facilitating the upcoming conversion from high-enriched uranium (HEU) to low-enriched uranium (LEU), and development of a surveillance plan relicensing database to support the planned license renewal. In summary, this nonpower reactor facility with limited staff has been successful in all three areas.

William G. Vernetson

2000-06-04T23:59:59.000Z

125

Risk Assessment of Cascading Outages: Methodologies and Challenges  

Science Conference Proceedings (OSTI)

Abstract- This paper is a result of ongoing activity carried out by Understanding, Prediction, Mitigation and Restoration of Cascading Failures Task Force under IEEE Computer Analytical Methods Subcommittee (CAMS). The task force's previous papers are focused on general aspects of cascading outages such as understanding, prediction, prevention and restoration from cascading failures. This is the first of two new papers, which extend this previous work to summarize the state of the art in cascading failure risk analysis methodologies and modeling tools. This paper is intended to be a reference document to summarize the state of the art in the methodologies for performing risk assessment of cascading outages caused by some initiating event(s). A risk assessment should cover the entire potential chain of cascades starting with the initiating event(s) and ending with some final condition(s). However, this is a difficult task and heuristic approaches and approximations have been suggested. This paper discusses different approaches to this and suggests directions for future development of methodologies. The second paper summarizes the state of the art in modeling tools for risk assessment of cascading outages.

Vaiman, Marianna; Bell, Keith; Chen, Yousu; Chowdhury, Badrul; Dobson, Ian; Hines, Paul; Papic, Milorad; Miller, Stephen; Zhang, Pei

2012-05-31T23:59:59.000Z

126

Outage-Efficient Downlink Transmission Without Transmit Channel State Information  

E-Print Network (OSTI)

This paper investigates downlink transmission over a quasi-static fading Gaussian broadcast channel (BC), to model delay-sensitive applications over slowly time-varying fading channels. System perfor-mance is characterized by outage achievable rate regions. In contrast to most previous work, here the problem is studied under the key assumption that the transmitter only knows the probability distributions of the fading coefficients, but not their realizations. For scalar-input channels, two coding schemes are proposed. The first scheme is called blind dirty paper coding (B-DPC), which utilizes a robustness property of dirty paper coding to perform precoding at the transmitter. The second scheme is called statistical superposition coding (S-SC), in which each receiver adaptively performs successive decoding with the process statistically governed by the realized fading. Both B-DPC and S-SC schemes lead to the same outage achievable rate region, which always dominates that of time-sharing, irrespective of the particular fading distributions. The S-SC scheme can be extended to BCs with multiple transmit antennas. Index Terms Broadcast channel, (blind) dirty paper coding, downlink, non-ergodic fading, outage achievable rate region, quasi-static fading, (statistical) superposition coding

Wenyi Zhang; Shivaprasad Kotagiri; Student Member; J. Nicholas Laneman; Senior Member

2007-01-01T23:59:59.000Z

127

Abstract--Cascading outages can cause large blackouts, and a variety of methods are emerging to study this challenging topic.  

E-Print Network (OSTI)

1 Abstract-- Cascading outages can cause large blackouts, and a variety of methods are emerging Analysis, Risk Analysis, Preventing Cascades. I. INTRODUCTION A cascading outage is a sequence of events component outages (based on [1] and [2]). In some cases cascading outages halt before the sequence results

Hines, Paul

128

Simulations of the Neutral-beam-induced Rotation, Radial Electric Field, and Flow Shearing Rate in Next-step Burning Plasmas  

SciTech Connect

Toroidal rotation of plasmas in present tokamaks is beneficial for increasing the stability to wall-induced MHD and appears to reduce the anomalous transport associated with micro-turbulence. This paper calculates the toroidal rotation expected from neutral-beam injection in the proposed FIRE and ITER-FEAT tokamak reactors. Self-consistent burning plasmas for these tokamaks have been constructed using the TRANSP plasma analysis code. Neutral-beam injection has been proposed for FIRE and ITER-FEAT. The neutral-beam-induced torques are computed, and assumptions for the anomalous transport of toroidal angular momentum are used to calculate the toroidal rotation profiles. The central Mach numbers are about 3-8%. The ratio of the rotation speed to the Alfvin speed is less than 1%. Assuming neoclassical poloidal rotation and force balance, the radial electric field and flow shearing rate are calculated. Peak shearing rates near the outboard edge are in the 10-100 krad/s range.

R.V. Budny

2002-08-13T23:59:59.000Z

129

Comments from the Virginia Department of Environmental Quality on PEPCO's Intention to Commence Planned Transmission Outages  

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

COMMONWEALTH of VIRGINIA COMMONWEALTH of VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY Street address: 629 East Main Street, Richmond, Virginia 23219 Mailing address: P.O. Box 10009, Richmond, Virginia 23240 Fax (804) 698-4500 TDD (804) 698-4021 www.deq.virginia.gov W. Tayloe Murphy, Jr. Secretary of Natural Resources Robert G. Burnley Director (804) 698-4000 1-800-592-5482 January 5, 2006 The Honorable Samuel W. Bodman Secretary of Energy United States Department of Energy 1000 Independence Avenue, S.W. Washington, D.C. 20585 Re: District of Columbia Public Service Commission Docket No. EO-05-01 Dear Secretary Bodman: The Virginia Department of Environmental Quality (DEQ) strongly opposes the Potomac Electric Power Company's (PEPCO) intention to commence planned maintenance outages of the

130

A framework and review of customer outage costs: Integration and analysis of electric utility outage cost surveys  

E-Print Network (OSTI)

usage. Table A-1 lists the utility company, survey year, andRequested From Utility Participants v List of Figures and

Lawton, Leora; Sullivan, Michael; Van Liere, Kent; Katz, Aaron; Eto, Joseph

2003-01-01T23:59:59.000Z

131

Study, outlines why outages go long, short, or on-time  

SciTech Connect

A recent report by a nuclear industry professional, based on a survey of outage managers at US nuclear power plants, declares that [open quotes]preplanned outage schedules appear to be grossly inaccurate, and the outage management planners and schedulers do not have a grasp of the requirements and/or the resources needed to complete the actual activities on schedule.[close quotes] It declares that [open quotes]the scheduled duration of a planned outage must be realistic.[close quotes] The study identifies personnel, planning and scheduling, and equipment/hardware as [open quotes]the primary reasons why refueling outages and outage activities finished ahead of, right on, or behind schedule.[close quotes

Not Available

1993-09-01T23:59:59.000Z

132

Outage Closeout and Unit Restart Guidelines for Fossil-Fueled Power Plants  

Science Conference Proceedings (OSTI)

Outage closeout planning and execution and successful restart are as important as the efforts going into an outage. Detailed planning and execution are required to ensure that schedules are met, tests are completed in a timely fashion, training is completed, and that lessons learned are captured for use in future outages, both planned and forced. Effective closure and restart activities result in a smoother return to service and more reliable operation. This project is based upon collective industry expe...

2008-12-22T23:59:59.000Z

133

Notification of Planned 230kV Outage at Potomac River Generating...  

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

The next planned outage on xxxxx high voltage circuit between Palmers Corner Substation and the Potomac River Generating Station is scheduled for Sunday, June 3, 2007 and will...

134

A Study of Outage Management Practices at Selected U.S. Nuclear Plants  

SciTech Connect

This paper presents insights gained from a study of the outage management practices at a number of U.S. nuclear plants. The objective of the study was to conduct an in-depth review of the current practices of outage management at these selected plants and identify important factors that have contributed to the recent success of their outage performance. Two BWR-4, three BWR-6, and two 3-loop Westinghouse PWR plants were selected for this survey. The results of this study can be used to formulate outage improvement efforts for nuclear plants in other countries. (author)

Lin, James C. [ABSG Consulting Inc., Irvine, CA (United States)

2002-07-01T23:59:59.000Z

135

Draft!07"18"2011! 1 Turning the Tide on Outages1  

E-Print Network (OSTI)

mitigate outages during the harshest weather, terrorist attacks, or natural disasters. This system into IIT Main Campus's current infrastructure. The initiative's approach is to implement local microgrids

Amin, S. Massoud

136

Characteristics and trends in a National Study of Consumer Outage Costs  

E-Print Network (OSTI)

cost per event Outage cost per kWh Peak kW demand Annualcost per event Outage cost per kWh Peak kW demand Annualfrom $3,124 to $1,369. The cost per kWh and cost per peak kW

Lawton, Leora; Eto, Joseph H.; Katz, Aaron; Sullivan, Michael

2003-01-01T23:59:59.000Z

137

Current industry practices in bulk transmission outage data collection and analysis  

SciTech Connect

This paper focuses on the state-of-the-art bulk transmission outage data collection and analysis. Included in this discussion is the motivation for interest, single/multiple outage event analysis, and identification of where to obtain data on weather conditions which impact the performance of bulk transmission.

Not Available

1992-02-01T23:59:59.000Z

138

A Tight Lower Bound to the Outage Probability of Discrete-Input Block-Fading Channels  

Science Conference Proceedings (OSTI)

In this correspondence, a tight lower bound to the outage probability of discrete-input Nakagami-m block-fading channels is proposed. The approach permits an efficient method for numerical evaluation of the bound, providing an additional tool for system ... Keywords: Block-fading channel, diversity, error probability, outage probability, rate-diversity tradeoff, signal-to-noise ratio (SNR)-exponent

K. D. Nguyen; A. Guillen i Fabregas; L. K. Rasmussen

2007-11-01T23:59:59.000Z

139

Market Assessment of Planned Refinery Outages March … June 2009  

Gasoline and Diesel Fuel Update (EIA)

09)/1 09)/1 Market Assessment of Planned Refinery Outages March - June 2009 March 2009 Energy Information Administration Office of Oil and Gas U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the U.S. Department of Energy. The information contained herein should be attributed to the Energy Information Administration and should not be construed as advocating or reflecting any policy position of the U.S. Department of Energy or any other organization. Service Reports are prepared by the Energy Information Administration upon special request and are based on assumptions specified by the requestor.

140

Minimize substation outage time by maximizing in-service testing  

Science Conference Proceedings (OSTI)

Most substation maintenance work is based on fixed schedules rather than on known need. Scheduled maintenance is essential and cannot be eliminated entirely, but priority should be given to equipment known to be deteriorated or defective. It makes no sense to perform costly, scheduled outage maintenance work when other equipment is failing because of undetected defects. The following should be included as major elements in an energized testing program: visual inspections; infrared inspection; corona inspection; percent oxygen in gas samples drawn from nitrogen-blanketed transformers; percent total combustible gas in gas samples drawn from nitrogen-blanketed transformers; dissolved gas analysis; oil quality tests; free water in the sample; dissolved water in oil; dissolved metals-in-oil analysis; furfural concentration analysis; SF[sub 6] analysis; battery testing; the substation grounding grid; and protective relays. 4 figs.

Lautenschlager, M. (High Voltage Maintenance Corp., Indianapolis, IN (United States))

1994-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotating electrical outages" 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

How and Why Customers Respond to Electricity Price Variability  

E-Print Network (OSTI)

and/or reached a significant milestone in 2011. A few examples are included here to highlight of operation. To prevent electricity outages and enable reliable integration of renewable energy generation

142

Plant Outage Time Savings Provided by Subcritical Physics Testing at Vogtle Unit 2  

SciTech Connect

The most recent core reload design verification physics testing done at Southern Nuclear Company's (SNC) Vogtle Unit 2, performed prior to initial power operations in operating cycle 12, was successfully completed while the reactor was at least 1% {delta}K/K subcritical. The testing program used was the first application of the Subcritical Physics Testing (SPT) program developed by the Westinghouse Electric Company LLC. The SPT program centers on the application of the Westinghouse Subcritical Rod Worth Measurement (SRWM) methodology that was developed in cooperation with the Vogtle Reactor Engineering staff. The SRWM methodology received U. S. Nuclear Regulatory Commission (NRC) approval in August of 2005. The first application of the SPT program occurred at Vogtle Unit 2 in October of 2005. The results of the core design verification measurements obtained during the SPT program demonstrated excellent agreement with prediction, demonstrating that the predicted core characteristics were in excellent agreement with the actual operating characteristics of the core. This paper presents an overview of the SPT Program used at Vogtle Unit 2 during operating cycle 12, and a discussion of the critical path outage time savings the SPT program is capable of providing. (authors)

Cupp, Philip [Southern Nuclear Company (United States); Heibel, M.D. [Westinghouse Electric Company, LLC (United States)

2006-07-01T23:59:59.000Z

143

Analysis of Country-wide Internet Outages Caused by Censorship  

E-Print Network (OSTI)

In the first months of 2011, Internet communications were disrupted in several North African countries in response to civilian protests and threats of civil war. In this paper we analyze episodes of these disruptions in two countries: Egypt and Libya. Our analysis relies on multiple sources of large-scale data already available to academic researchers: BGP interdomain routing control plane data; unsolicited data plane traffic to unassigned address space; active macroscopic traceroute measurements; RIR delegation files; and MaxMinds geolocation database. We used the latter two data sets to determine which IP address ranges were allocated to entities within each country, and then mapped these IP addresses of interest to BGP-announced address ranges (prefixes) and origin ASes using publicly available BGP data repositories in the U.S. and Europe. We then analyzed observable activity related to these sets of prefixes and ASes throughout the censorship episodes. Using both control plane and data plane data sets in combination allowed us to narrow down which forms of Internet access disruption were implemented in a given region over time. Among other insights, we detected what we believe were Libyas attempts to test firewallbased blocking before they executed more aggressive BGP-based disconnection. Our methodology could be used, and automated, to detect outages or similar macroscopically disruptive events in other geographic or topological regions.

Alberto Dainotti; Kimberly C. Claffy; Michele Russo; Claudio Squarcella; Marco Chiesa; Antonio Pescap; Emile Aben

2011-01-01T23:59:59.000Z

144

Electrical generating plant availability  

SciTech Connect

A discussion is given of actions that can improve availability, including the following: the meaning of power plant availability; The organization of the electric power industry; some general considerations of availability; the improvement of power plant availability--design factors, control of shipping and construction, maintenance, operating practices; sources of statistics on generating plant availability; effects of reducing forced outage rates; and comments by electric utilities on generating unit availability.

1975-05-01T23:59:59.000Z

145

No (Brain)power Outage at a Competition Like No Other  

Office of Science (SC) Website

No (Brain)power Outage at a Competition Like No Other News In the News In Focus 2013 2012 2011 2010 2009 2008 2007 2006 2005 Presentations & Testimony Recovery Act Contact...

146

Notification of Planned 230kV Outage at Potomac River Generating...  

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

The next planned outage on xxxxx high voltage circuit between xxxxx and xxxxx is tentatively scheduled for Saturday May 19, 2007 and will begin at 4:00 AM with a scheduled return...

147

Efficient algorithms for outage minimization in parallel fading channels with limited feedback  

Science Conference Proceedings (OSTI)

In this paper, we address the optimal power allocation problem for minimizing the notion of information theoretic outage for an M parallel block-Rayleigh-fading channels using a finite rate power codebook (limited feedback). In contrast to the ...

YuanYuan He; Subhrakanti Dey

2009-09-01T23:59:59.000Z

148

A Novel Dynamic Voltage Restorer with Outage Handling Capability Using Fuzzy Logic Controler  

Science Conference Proceedings (OSTI)

This paper presents a novel dynamic voltage restorer (DVR) capable of handling deep sags including outage on a low voltage distribution system. The DVR recovers sags up to 10% of nominal voltage; otherwise, it will operate as an uninterruptible power ...

M. Ashari; T. Hiyama; M. Pujiantara; H. Suryoatmojo; M. Hery Purnomo

2007-09-01T23:59:59.000Z

149

ORNL Network Outage, Saturday, June 12, 6:00-8:00 a.m.  

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

June 12, 2010, 6:00 a.m. to 8:00 a.m. EDT All externally accessible ORNL servers, including the ORNL DAAC Web Site, http:daac.ornl.gov will experience brief network outages...

150

Electric  

U.S. Energy Information Administration (EIA)

Average Retail Price of Electricity to ... Period Residential Commercial Industrial ... or usage falling within specified limits by rate ...

151

Manual of Bearing Failures and Repair in Power Plant Rotating Equipment  

Science Conference Proceedings (OSTI)

Bearing failures are a leading cause of unavailability for power plant rotating machinery, often resulting in prolonged forced outages and costly repairs. This manual, which assists utilities in identifying bearing failure modes and selecting remedial actions to prevent future failures, provides guidelines for repair techniques.

1991-08-08T23:59:59.000Z

152

Electricity  

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

Electricity is an essential part of modern life. The Energy Department is working to create technology solutions that will reduce our energy use and save Americans money.

153

ECONOMIC BENEFITS OF INCREASING ELECTRIC GRID RESILIENCE TO  

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

ECONOMIC BENEFITS OF ECONOMIC BENEFITS OF INCREASING ELECTRIC GRID RESILIENCE TO WEATHER OUTAGES Executive Office of the President August 2013 2 This report was prepared by the President's Council of Economic Advisers and the U.S. Department of Energy's Office of Electricity Delivery and Energy Reliability, with assistance from the White House Office of Science and Technology 3 Executive Summary Severe weather is the leading cause of power outages in the United States. Between 2003 and 2012, an estimated 679 widespread power outages occurred due to severe weather. Power outages close schools, shut down businesses and impede emergency services, costing the economy billions of dollars and disrupting the lives of millions of Americans. The resilience of

154

ORNL Network Outage, Friday, April 15, 9:30 p.m. to Date  

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

Outage Outage All externally accessible ORNL servers, including the ORNL DAAC Web Site, http://daac.ornl.gov are experiencing network outages or slow connectivity at this time. The ORNL Information Technology's Cyber Security Program is working hard to restore full external functionality. We apologize for this inconvenience and appreciate your patience during our down time. At this time you can explore our Web site and access data products including MODIS Land Products Subsets, albeit slowly. The following tools: Mercury (Simple Search and Advanced Product Search) WebGIS Spatial Data Access Tool (SDAT) Thematic Real-time Environmental Distributed Data Services (THREDDS) Data Server (TDS) as well as the following Web Sites: Mast-DC FLUXNET are not available. You may experience problems signing-in or

155

Power Outages Update: Post-Tropical Cyclone Sandy | Department of Energy  

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

Outages Update: Post-Tropical Cyclone Sandy Outages Update: Post-Tropical Cyclone Sandy Power Outages Update: Post-Tropical Cyclone Sandy October 29, 2012 - 9:37pm Addthis Sandy made landfall as a post-tropical cyclone on the southern coast of New Jersey near Atlantic City at 8 p.m. with top sustained winds of 80 mph. | Photo courtesy of NOAA Sandy made landfall as a post-tropical cyclone on the southern coast of New Jersey near Atlantic City at 8 p.m. with top sustained winds of 80 mph. | Photo courtesy of NOAA Dan Leistikow Dan Leistikow Former Director, Office of Public Affairs As of 8:00 pm EDT on October 29, there were more than 3.6 million customers without power in the affected states. The Energy Department is continuing to monitor the progress of the storm throughout the night and will publish

156

Market Assessment of Refinery Outages Planned for March 2011 through June 2011  

Gasoline and Diesel Fuel Update (EIA)

Assessment of Refinery Assessment of Refinery Outages Planned for March 2011 through June 2011 APRIL 2011 www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration / Market Assessment of Planned Refinery Outages / March 2011 - June 2011 ii This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or other Federal agencies. U.S. Energy Information Administration / Market Assessment of Planned Refinery Outages /

157

1 On Downlink Transmission Without Transmit Channel State Information and With Outage Constraints  

E-Print Network (OSTI)

This paper investigates downlink transmission over a quasi-static fading Gaussian broadcast channel (BC), to model delay-sensitive applications over slowly time-varying fading channels. System performance is characterized by the outage capacity region. In contrast to most previous work, here the problem is studied under the key assumption that the transmitter knows only the probability distributions of the fading coefficients, not their realizations. For scalar-input channels, two coding schemes are studied. The first scheme is called blind dirty paper coding (B-DPC), which utilizes a robustness property of dirty paper coding to perform precoding at the transmitter. The second scheme is called statistical superposition coding (S-SC), in which each receiver adaptively performs successive decoding with the process statistically governed by the realized fading. Both B-DPC and S-SC schemes achieve the outage capacity region, which dominates the outage rate region of time-sharing, irrespective of the particular

Wenyi Zhang; Shiva Prasad Kotagiri; J. Nicholas Laneman; Senior Member

2009-01-01T23:59:59.000Z

158

Automatic Scheduling of Outages of Nuclear Power Plants with Time Windows  

E-Print Network (OSTI)

We report on a successful project for transference of advanced AI technology into the domain of planning of outages of nuclear power plants as part of DOD's dual-use program. ROMAN (Rome Lab Outage Manager) is the prototype system that was developed as a result of this project. ROMAN's main innovation compared to the current state of the art of outage management tools is its capability to automatically enforce safety constraints during the planning and scheduling phase. Another innovative aspect of ROMAN is the generation of more robust schedules that are feasible over time windows. In other words, ROMAN generates a family of schedules by assigning time intervals as start times to activities rather than single point start times, without afecting the overall duration of the project. ROMAN uses a constraint satisfaction paradigm combining a global search tactic with constraint propagation. The derivation of very specialized representations for the constraints to perform efficient propaga...

Carla P. Gomes

1996-01-01T23:59:59.000Z

159

The detection, prevention and mitigation of cascading outages in the power system  

E-Print Network (OSTI)

This dissertation studies the causes and mechanism of power system cascading outages and develops new methods and new tools to help detect, prevent and mitigate the outages. Three effective solutions: a steady state control scheme, a transient stability control scheme, and an interactive system-wide and local scheme have been proposed using those new methods and tools. A steady state control scheme can help detect and prevent the possible cascading outage at its initial slow steady state progress stage. It uses new methods and new tools to solve the line overload, congestion or bus high/low voltage problems. New methods, such as vulnerability index (VI), margin index (MI), network contribution factor (NCF), topology processing and selected minimum load shedding (SMLS), and new tools, such as transmission network control based on a network contribution factor (NCF) method, generator control based on a generator distribution factor (GDF) method, and load control based on a load distribution factor (LDF) method have been proposed and developed. A transient stability control scheme can help prevent and mitigate the possible cascading outage at its transient progress stage if there is enough time to take action. It uses one Lyapunov direct method, potential energy boundary surface (PEBS) method, and sensitivity analysis of transient energy margin for fast stabilizing control. The results are verified by the accurate time-domain transient stability analysis method. The interactive scheme takes advantage of accurate system-wide and local information and analysis results, uses some techniques from both steady state control and transient stability control, works at both the system-wide level and local substation level, monitors the system all the time, and takes actions when needed to help detect, prevent and mitigate the possible cascading outage. Comprehensive simulation studies have been implemented using the IEEE 14- bus, 24-bus, 39-bus and 118-bus systems and promising results show the ability of the proposed solutions to help detect, prevent and mitigate cascading outages.

Song, Hongbiao

2006-12-01T23:59:59.000Z

160

Nuclear Safety Risk Management in Refueling Outage of Qinshan Nuclear Power Plant  

SciTech Connect

The NPP is used to planning maintenance, in-service inspection, surveillance test, fuel handling and design modification in the refueling outage; the operator response capability will be reduced plus some of the plant systems out of service or loss of power at this time. Based on 8 times refueling outage experiences of the Qinshan NPP, this article provide some good practice and lesson learned for the nuclear safety risk management focus at four safety function areas of Residual Heat Removal Capability, Inventory Control, Power availability and Reactivity control. (authors)

Meijing Wu; Guozhang Shen [Qinshan Nuclear power company (China)

2006-07-01T23:59:59.000Z

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


161

Rotating Hairy Black Holes  

E-Print Network (OSTI)

We construct stationary black holes in SU(2) Einstein-Yang-Mills theory, which carry angular momentum and electric charge. Possessing non-trivial non-abelian magnetic fields outside their regular event horizon, they represent non-perturbative rotating hairy black holes.

B. Kleihaus; J. Kunz

2000-12-20T23:59:59.000Z

162

Outage Performance of OFDM-Based Selective Decode-and-Forward Cooperative Networks Over Nakagami-m Fading Channels  

Science Conference Proceedings (OSTI)

In this paper, we investigate the outage performance of OFDM-based selective decode-and-forward cooperative networks over independent but not necessarily identically distributed (i.n.i.d.) Nakagami-m fading channels, with integer values of parameter ... Keywords: Cooperative communication, Nakagami-m fading, OFDM, Outage probability

Wendong Yang; Weiwei Yang; Yueming Cai

2011-02-01T23:59:59.000Z

163

Outage Performance of Dual-Hop AF Relay Channels with Co-Channel Interferences over Rayleigh Fading  

Science Conference Proceedings (OSTI)

This paper studies the outage performance of a dual-hop amplify-and-forward (AF) relay fading channel in an interference-limited environment. The relay and destination nodes are corrupted by multiple co-channel Rayleigh interferences. New exact closed-form ... Keywords: Amplify and-forward relay, Co-channel interference, Nonregenerative relay, Outage probability, Rayleigh fading

Aleksandra M. Cvetkovi?; Dejan N. Mili?; Aleksandar S. Cvetkovi?; Mihajlo Stefanovi?

2013-06-01T23:59:59.000Z

164

Cross-layer interaction between spatial and multi-user diversity in selective feedback systems: outage capacity analysis  

Science Conference Proceedings (OSTI)

In this paper, we explore spatial vs. multi-user diversity tradeoffs in terms of outage capacity for a non-homogeneous cellular system with selective feedback. More precisely, we analytically derive an upper bound of the outage capacity of both a SISO ... Keywords: cross-layer designs, multi-antenna schemes, multi-user diversity, selective scheduling, spatial diversity, wireless systems

Jos Lpez Vicario; Carles Antn-Haro

2006-07-01T23:59:59.000Z

165

Spin rotation and birefringence effect for a particle in a high energy storage ring and measurement of the real part of the coherent elastic zero-angle scattering amplitude, electric and magnetic polarizabilities  

E-Print Network (OSTI)

In the present paper the equations for the spin evolution of a particle in a storage ring are analyzed considering contributions from the tensor electric and magnetic polarizabilities of the particle. Study of spin rotation and birefringence effect for a particle in a high energy storage ring provides for measurement as the real part of the coherent elastic zero-angle scattering amplitude as well as tensor electric and magnetic polarizabilities. We proposed the method for measurement the real part of the elastic coherent zero-angle scattering amplitude of particles and nuclei in a storage ring by the paramagnetic resonance in the periodical in time nuclear pseudoelectric and pseudomagnetic fields.

V. G. Baryshevsky; A. A. Gurinovich

2005-06-14T23:59:59.000Z

166

ELECTRIC  

Office of Legacy Management (LM)

ELECTRIC cdrtrokArJclaeT 3 I+ &i, y I &OF I*- j< t j,fci..- ir )(yiT E-li, ( -,v? Cl -p4.4 RESEARCH LABORATORIES EAST PITTSBURGH, PA. 8ay 22, 1947 Mr. J. Carrel Vrilson...

167

96 IEEE power & energy magazine march/april 2005 THE MASSIVE POWER OUTAGE OF  

E-Print Network (OSTI)

collaboration among economists, scientists, and engineers to slowly but surely transform the power grid96 IEEE power & energy magazine march/april 2005 T THE MASSIVE POWER OUTAGE OF August 2003 underscored the vulnerabil- ity of our nation's power grid and the fact that this vital yet complex infrastruc

Amin, S. Massoud

168

Using Remaining Battery lifetime information and Relaying to decrease Outage Probability of a Mobile  

E-Print Network (OSTI)

Using Remaining Battery lifetime information and Relaying to decrease Outage Probability is to demonstrate that by employing relaying and using the remaining battery lifetime information of Mobile is determined based on the remaining battery lifetime of the MT. We assume a linear relationship between

Singh, Suresh

169

ORNL NASA DAAC Web Site Outage, Saturday May 15 from 3:00 a.m...  

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

Outage, Saturday, May 15, 2010 3:00 a.m.-5:00 p.m. EDT The ORNL DAAC Web site will be unavailable between 3:00 a.m. and 5:00 p.m., Eastern Daylight Time (EDT), on Saturday, May 15,...

170

Mitigating Cascading Outages on Power Systems: Recent Research Approaches and Emerging Methods  

Science Conference Proceedings (OSTI)

The August 14, 2003 and August 10, 1996 wide area outages are two examples of the cascading failure of a large portion of the North American power grid. Methods of better understanding, predicting, and preventing cascading failures, as well as restoring the power system after such failure, were the topics of a recent NSF/EPRI workshop.

2005-12-19T23:59:59.000Z

171

An Efficient Energy Curtailment Scheme For Outage Management in Smart Grid  

E-Print Network (OSTI)

An Efficient Energy Curtailment Scheme For Outage Management in Smart Grid Wayes Tushar§, Jian--In this paper an efficient energy curtailment scheme is studied, which enables the power users of a smart grid. Considering the advantages of a two-way communications infrastructure for any future smart grid, a non

Durrani, Salman

172

Field Guide: Heat Recovery Steam Generator Outage Inspection Pocket Manual  

Science Conference Proceedings (OSTI)

Heat recovery steam generators (HRSGs) pose a unique set of operational challenges, due in part to their rapid startup capabilities and high operating efficiencies. Among these challenges are the difficulty of inspection and repair, which are complicated by limited access as well as the complexity of the equipment. To help members address these challenges, the Electric Power Research Institute's (EPRI's) Heat Recovery Steam Generator Dependability program has added this field guide to its comprehensive s...

2010-12-23T23:59:59.000Z

173

Cooling system for rotating machine  

Science Conference Proceedings (OSTI)

An electrical machine comprising a rotor is presented. The electrical machine includes the rotor disposed on a rotatable shaft and defining a plurality of radial protrusions extending from the shaft up to a periphery of the rotor. The radial protrusions having cavities define a fluid path. A stationary shaft is disposed concentrically within the rotatable shaft wherein an annular space is formed between the stationary and rotatable shaft. A plurality of magnetic segments is disposed on the radial protrusions and the fluid path from within the stationary shaft into the annular space and extending through the cavities within the radial protrusions.

Gerstler, William Dwight (Niskayuna, NY); El-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Lokhandwalla, Murtuza (Clifton Park, NY); Alexander, James Pellegrino (Ballston Lake, NY); Quirion, Owen Scott (Clifton Park, NY); Palafox, Pepe (Schenectady, NY); Shen, Xiaochun (Schenectady, NY); Salasoo, Lembit (Schenectady, NY)

2011-08-09T23:59:59.000Z

174

ELECTRIC  

Office of Legacy Management (LM)

ELECTRIC ELECTRIC cdrtrokArJclaeT 3 I+ &i, y$ \I &OF I*- j< t j,fci..- ir )(yiT !E-li, ( \-,v? Cl -p/4.4 RESEARCH LABORATORIES EAST PITTSBURGH, PA. 8ay 22, 1947 Mr. J. Carrel Vrilson General ?!!mager Atomic Qxzgy Commission 1901 Constitution Avenue Kashington, D. C. Dear Sir: In the course of OUT nuclenr research we are planning to study the enc:ri;y threshold anti cross section for fission. For thib program we require a s<>piAroted sample of metallic Uranium 258 of high purity. A quantity of at lezst 5 grams would probably be sufficient for our purpose, and this was included in our 3@icntion for license to the Atonic Energy Coskqission.. This license has been approved, 2nd rre would Llp!Jreciate informztion as to how to ?r*oceed to obtain thit: m2teria.l.

175

Analysis of residential, industrial and commercial sector responses to potential electricity supply constraints in the 1990s  

DOE Green Energy (OSTI)

There is considerable debate over the ability of electric generation capacity to meet the growing needs of the US economy in the 1990s. This study provides new perspective on that debate and examines the possibility of power outages resulting from electricity supply constraints. Previous studies have focused on electricity supply growth, demand growth, and on the linkages between electricity and economic growth. This study assumes the occurrence of electricity supply shortfalls in the 1990s and examines the steps that homeowners, businesses, manufacturers, and other electricity users might take in response to electricity outages.

Fisher, Z.J.; Fang, J.M.; Lyke, A.J.; Krudener, J.R.

1986-09-01T23:59:59.000Z

176

A compact rotating dilution refrigerator  

E-Print Network (OSTI)

We describe the design and performance of a new rotating dilution refrigerator that will primarily be used for investigating the dynamics of quantized vortices in superfluid 4He. All equipment required to operate the refrigerator and perform experimental measurements is mounted on two synchronously driven, but mechanically decoupled, rotating carousels. The design allows for relative simplicity of operation and maintenance and occupies a minimal amount of space in the laboratory. Only two connections between the laboratory and rotating frames are required for the transmission of electrical power and helium gas recovery. Measurements on the stability of rotation show that rotation is smooth to around 0.001 rad/s up to angular velocities in excess of 2.5 rad/s. The behavior of a high-Q mechanical resonator during rapid changes in rotation has also been investigated.

Fear, M J; Chorlton, D A; Zmeev, D E; Gillott, S J; Sellers, M C; Richardson, P P; Agrawal, H; Batey, G; Golov, A I

2013-01-01T23:59:59.000Z

177

Importance, Identification, and Assessment of Danger and Hazard Trees Located Outside Electric Transmission Line Rights-of-Way  

Science Conference Proceedings (OSTI)

Electric transmission line rights-of-way (ROWs) commonly pass through forested areas across North America. Trees from these forests could fall from outside the ROW into a transmission line and its security zone, potentially causing an outage. Most of the bulk transmission outages across the United States over the past decade have been caused by off-ROW trees. The North American Electric Reliability Corporation (NERC) developed standards for transmission vegetation management programs that strictly regul...

2010-11-22T23:59:59.000Z

178

Nuclear rotations  

Science Conference Proceedings (OSTI)

An analysis of the gamma-ray spectra produced using the quantum mechanical rotational energy formula is presented for nuclei with large angular momentum. This analysis is suitable for quantum mechanics modern physics

G. F. Bertsch; R. V. F. Janssens

1997-01-01T23:59:59.000Z

179

Method of sustaining a radial electric field and poloidal plasma rotation over most of the cross-section of a tokamak  

DOE Patents (OSTI)

A radial electric field of a desired magnitude and configuration is created hroughout a substantial portion of the cross-section of the plasma of a tokamak. The radial electric field is created by injection of a unidirectional electron beam. The magnitude and configuration of the radial electric field may be controlled by the strength of the toroidal magnetic field of the tokamak.

Darrow, Douglass S. (Plainsboro, NJ); Ono, Masayuki (Princeton Jct., NJ)

1990-01-01T23:59:59.000Z

180

Cognitive Multiple Access Network with Outage Margin in the Primary System  

E-Print Network (OSTI)

This paper investigates the problem of spectrally efficient operation of a multiuser uplink cognitive radio system in the presence of a single primary link. The secondary system applies opportunistic interference cancelation (OIC) and decode the primary signal when such an opportunity is created. We derive the achievable rate in the secondary system when OIC is used. This scheme has a practical significance, since it enables rate adaptation without requiring any action from the primary system. The \\emph{exact} expressions for outage probability of the primary user are derived, when the primary system is exposed to interference from secondary users. Moreover, approximated formulas and tight lower and upper bounds for the ergodic sum-rate capacity of the secondary network are found. Next, the power allocation is investigated in the secondary system for maximizing the sum-rate under an outage constraint at the primary system. We formulate the power optimization problem in various scenarios depending on the avail...

Maham, Behrouz; Zhou, Xiangyun; Hjrungnes, Are

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotating electrical outages" 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

1 Outage-Efficient Downlink Transmission Without Transmit Channel State Information  

E-Print Network (OSTI)

This paper investigates downlink transmission over a quasi-static fading Gaussian broadcast channel (BC), to model delay-sensitive applications over slowly time-varying fading channels. System performance is characterized by outage achievable rate regions. In contrast to most previous work, here the problem is studied under the key assumption that the transmitter only knows the probability distributions of the fading coefficients, but not their realizations. For scalar-input channels, two coding schemes are proposed. The first scheme is called blind dirty paper coding (B-DPC), which utilizes a robustness property of dirty paper coding to perform precoding at the transmitter. The second scheme is called statistical superposition coding (S-SC), in which each receiver adaptively performs successive decoding with the process statistically governed by the realized fading. Both B-DPC and S-SC schemes lead to the same outage achievable rate region, which always dominates that of time-sharing, irrespective of the particular fading distributions. The S-SC scheme can be extended to BCs with multiple transmit antennas. Index Terms Broadcast channel, (blind) dirty paper coding, downlink, non-ergodic fading, outage achievable rate region, quasi-static fading, (statistical) superposition coding

Wenyi Zhang; Shivaprasad Kotagiri; Student Member; J. Nicholas Laneman; Senior Member

2008-01-01T23:59:59.000Z

182

North American Electricity Infrastructure: System Security, Quality, Reliability, Availability, and Efficiency  

E-Print Network (OSTI)

1 North American Electricity Infrastructure: System Security, Quality, Reliability, Availability for reliable and disturbance-free electricity. The massive power outages in the United States, Canada, UK and Italy in 2003 underscored electricity infrastructure's vulnerabilities [1-11]. This vital yet complex

Amin, S. Massoud

183

Trirotron: triode rotating beam radio frequency amplifier  

DOE Patents (OSTI)

High efficiency amplification of radio frequencies to very high power levels including: establishing a cylindrical cloud of electrons; establishing an electrical field surrounding and coaxial with the electron cloud to bias the electrons to remain in the cloud; establishing a rotating electrical field that surrounds and is coaxial with the steady field, the circular path of the rotating field being one wavelength long, whereby the peak of one phase of the rotating field is used to accelerate electrons in a beam through the bias field in synchronism with the peak of the rotating field so that there is a beam of electrons continuously extracted from the cloud and rotating with the peak; establishing a steady electrical field that surrounds and is coaxial with the rotating field for high-energy radial acceleration of the rotating beam of electrons; and resonating the rotating beam of electrons within a space surrounding the second field, the space being selected to have a phase velocity equal to that of the rotating field to thereby produce a high-power output at the frequency of the rotating field.

Lebacqz, Jean V. (Stanford, CA)

1980-01-01T23:59:59.000Z

184

Fast Detection and Mitigation of Cascading Outages in the Power System  

E-Print Network (OSTI)

This dissertation studies the causes and mechanism of power system cascading outages and proposes the improved interactive scheme between system-wide and local levels of monitoring and control to quickly detect, classify and mitigate the cascading outages in power system. A novel method for evaluating the vulnerability of individual components as well as the whole power system, which is named as weighted vulnerability analysis, is developed. Betweenness centrality is used to measure the importance of each bus and transmission line in the modeled power system network, which is in turn used to determine the weights for the weighted vulnerability index. It features fast reaction time and achieves higher accuracy when dealing with the cascading outage detection, classification and mitigation over the traditional methods. The overload problem due to power flow redistribution after one line tripped is a critical factor contributing to the cascading outages. A parallel corridor searching method is proposed to quickly identify the most vulnerable components after tripping a transmission line. The power system topology model can be simplified into state graph after searching the domains for each generator, the commons for each bus, and links between the commons. The parallel corridor will be determined by searching the links and commons in system topology graph for the given state of power system operation. During stressed operating state, either stable or unstable power swing may have impacts on distance relay judgment and lead to relay misoperation, which will result in the power system lines being tripped and as a consequence power system operating state becoming even more stressful. At the local level, an enhanced fault detection tool during power system swing is developed to reduce the chance of relay misoperation. Comprehensive simulation studies have been implemented by using the IEEE 39-bus and 118-bus test systems. The results are promising because: The results from weighted vulnerability analysis could provide better system situational awareness and accurate information about the disturbance; The results form parallel corridor search method could identify the most vulnerable lines after power re-distribution, which will give operator time to take remedial actions; The results from new travelling wave and wavelet transform based fault detection could reduce the impact of relay misoperation.

Pang, Chengzong

2011-12-01T23:59:59.000Z

185

In-line rotating capacitive torque sensor  

DOE Patents (OSTI)

Disclosed are a method and apparatus for measuring torques developed along a rotating mechanical assembly comprising a rotating inner portion and a stationary outer portion. The rotating portion has an electrically-conductive flexing section fitted between two coaxial shafts in a configuration which varies radially in accordance with applied torque. The stationary portion comprises a plurality of conductive plates forming a surface concentric with and having a diameter slightly larger than the diameter of the rotating portion. The capacitance between the outer, nonrotating and inner, rotating portion varies with changes in the radial configuration of the rotating portion. Signal output varies approximately linearly with torque for small torques, nonlinearly for larger torques. The sensor is preferably surrounded by a conductive shell to minimize electrical interference from external sources. 18 figures.

Kronberg, J.W.

1991-09-10T23:59:59.000Z

186

POWER PLANT RELIABILITY-AVAILABILITY AND STATE REGULATION. VOLUME 7 OF THE FINAL REPORT ON HEALTH AND SAFETY IMPACTS OF NUCLEAR, GEOTHERMAL, AND FOSSIL-FUEL ELECTRIC GENERATION IN CALIFORNIA  

E-Print Network (OSTI)

generate steam to drive a steam turbine, giving rise to theValves and Pi~ing STEAM TURBINE COMPONENT OUTAGE CAUSESbasically of a steam-driven turbine, an electric generator

Nero, A.V.

2010-01-01T23:59:59.000Z

187

Key Issues for the control of refueling outage duration and costs in PWR Nuclear Power Plants  

SciTech Connect

For several years, EDF, within the framework of the CIDEM1 project and in collaboration with some German Utilities, has undertaken a detailed review of the operating experience both of its own NPP and of foreign units, in order to improve the performances of future units under design, particularly the French-German European Pressurized Reactor (EPR) project. This review made it possible to identify the key issues allowing to decrease the duration of refueling and maintenance outages. These key issues can be classified in 3 categories Design, Maintenance and Logistic Support, Outage Management. Most of the key issues in the design field and some in the logistic support field have been studied and could be integrated into the design of any future PWR unit, as for the EPR project. Some of them could also be adapted to current plants, provided they are feasible and profitable. The organization must be tailored to each country, utility or period: it widely depends on the power production environment, particularly in a deregulation context. (author)

Degrave, Claude [Electricite de France, EDF-SEPTEN, 12-14 avenue Dutrievoz 69628 Villeurbanne Cedex (France)

2002-07-01T23:59:59.000Z

188

OFFICE OF ELECTRICITY DELIVERY AND ENERGY RELIABILITY (OE)  

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

Isaac Situation Report # 14 Isaac Situation Report # 14 September 5, 2012 (3:00 PM EDT) http://www.oe.netl.doe.gov/emergency_sit_rpt.aspx Highlights: Hurricane Isaac made its first landfall on Tuesday, August 28 at 7:45 pm EDT in Plaquemines Parish, LA. Isaac made a second landfall along the coast of southeast Louisiana, just west of Port Fourchon, at 3:15 am EDT on Wednesday, August 29. Summary Impacted State Current Customer Outages Percentage of Customers Without Power Peak Outages Reported in DOE SitReps Customers Restored Since Peak Louisiana 13,884 < 1% 889,517 875,633 TOTAL: 13,884 Amount % Capacity Out* 680,749 49.33% 1,156.9 25.71% 247,000 NA Natural Gas Production Shut-in (mmcf/d) Refinery Capacity Shut down (b/d) Electric Outages by State Crude Oil Production Shut-In (b/d)

189

Market Assessment of Refinery Outages Planned for October 2009 through January 2010  

Gasoline and Diesel Fuel Update (EIA)

09)/2 09)/2 Market Assessment of Refinery Outages Planned for October 2009 through January 2010 November 2009 Energy Information Administration Office of Oil and Gas U.S. Department of Energy Washington, DC 20585 This report was prepared by the U.S. Energy Information Administration (EIA), the independent statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views herein should not be construed as representing those of the Department or the Administration. Preface and Contacts The Energy Information Administration (EIA) is the independent statistical and analytical

190

Notification of Planned 230kV Outage at Potomac River Generating Station  

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

Sent: Wednesday, May 16, 2007 4:49 PM To: #DOE_Notification@pepco.com Subject: Notification of Planned 230kV Outage at Potomac River Generating Station To Whom It May Concern: This morning Pepco and PJM observed that the generation at the Potomac River Generating Station was having difficulty matching the station generation requirement to the Potomac River area load. Mirant has also informed Pepco and PJM that several generating units were experiencing equipment problems which required them to reduce unit and total plant output. Based on these observations and information received from Mirant, Pepco has elected to cease the current work activities underway on xxxxx high voltage circuit and we will be placing this transmission line back in service this afternoon.

191

ORNL Network Outage, Friday, April 15, 9:30 p.m. to Date  

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

Updated 4/25/2011 Updated 4/25/2011 All externally accessible ORNL servers, including the ORNL DAAC Web Site, http://daac.ornl.gov are experiencing network outages or slow connectivity at this time. We apologize for this inconvenience and appreciate your patience during our down time. At this time you can explore our Web site and access data products including MODIS Land Products Subsets, albeit slowly. However, the following Web sites and tools have been taken off the Internet and are not available: Mercury (DAAC Simple Search and Advanced Product Search) WebGIS Spatial Data Access Tool (SDAT) Thematic Real-time Environmental Distributed Data Services (THREDDS) Data Server (TDS) MAST-DC FLUXNET Beija-flor (at ORNL) You may experience problems signing-in or registering with our Web site.

192

Market Assessment of Refinery Outages Planned for October 2010 through January 2011  

Gasoline and Diesel Fuel Update (EIA)

10)/2 10)/2 Market Assessment of Refinery Outages Planned for October 2010 through January 2011 November 2010 Energy Information Administration Office of Petroleum, Gas, and Biofuels Analysis U.S. Department of Energy Washington, DC 20585 This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or other Federal agencies. E nergy Information Adminis tration Market As s es s ment of P lanned R

193

Reducing Duration of Refueling Outage by Optimizing Core Design and Shuffling Sequence  

SciTech Connect

Reducing the duration of refueling outage is possible by optimizing the core design and the shuffling sequence. For both options software tools have been developed that have been applied to the three most recent cycles of the Borssele plant in the Netherlands. Applicability of the shuffling sequence optimization to boiling water reactors has been demonstrated by a comparison to a recent shuffle plan used in the Hatch plant located in the United States. Their uses have shown that both core design and shuffling sequence optimization can be exploited to reduce the time needed for reloading a core with an in-core shuffling scheme. Ex-core shuffling schemes for pressurized water reactors can still have substantial benefit from a core design using a minimized number of insert shuffles.

Wakker, P.H.; Verhagen, F.C.M.; Bloois, J.T. van; Sutton, W.R. III

2005-07-15T23:59:59.000Z

194

Outage probability and channel capacity for the Nth best relay selection AF relaying over INID Rayleigh fading channels  

Science Conference Proceedings (OSTI)

Cooperative diversity systems have recently been proposed as a way to form virtual antenna schemes without utilizing collocated multiple antennas. In this paper, we consider the Nth best opportunistic amplify-and-forward (AF) cooperative diversity ... Keywords: Nth best OAF, INID Rayleigh fading channels, channel capacity, cooperative diversity, outage probability

K. Ko; C. Woo

2012-11-01T23:59:59.000Z

195

In-line rotating capacitive torque sensor  

DOE Patents (OSTI)

A method and apparatus for measuring torques developed along a rotating mechanical assembly comprising a rotating inner portion and a stationary outer portion. The rotating portion has an electrically-conductive flexing section fitted between two coaxial shafts in a configuration which varies radially in accordance with applied torque. The stationary portion comprises a plurality of conductive plates forming a surface concentric with and having a diameter slightly larger than the diameter of the rotating portion. The capacitance between the outer, nonrotating and inner, rotting portion varies with changes in the radial configuration of the rotating portion. Signal output varies approximately linearly with torque for small torques, nonlinearly for larger torques. The sensor is preferably surrounded by a conductive shell to minimize electrical interference from external sources. 8 figs.

Kronberg, J.W.

1990-01-08T23:59:59.000Z

196

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 "worth" 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

197

Dust-induced instability in a rotating plasma  

SciTech Connect

The effect of immobile dust on stability of a magnetized rotating plasma is analyzed. In the presence of dust, a term containing an electric field appears in the one-fluid equation of plasma motion. This electric field leads to an instability of the magnetized rotating plasma called the dust-induced rotational instability (DRI). The DRI is related to the charge imbalance between plasma ions and electrons introduced by the presence of charged dust. In contrast to the well-known magnetorotational instability requiring the decreasing radial profile of the plasma rotation frequency, the DRI can appear for an increasing rotation frequency profile.

Mikhailovskii, A. B.; Vladimirov, S. V.; Lominadze, J. G.; Tsypin, V. S.; Churikov, A. P.; Erokhin, N. N.; Galvao, R. M. O. [Institute of Nuclear Fusion, Russian Research Centre Kurchatov Institute, 1, Kurchatov Sq., Moscow 123182 (Russian Federation); School of Physics, University of Sydney, Sydney, N.S.W. 2006 (Australia); Kharadze Abastumani National Astrophysical Observatory, 2a, Kazbegi Ave., Tbilisi 0160 (Georgia); Brazilian Center for Physics Research, Rua Xavier Sigaud, 150, 22290-180, Rio de Janeiro (Brazil); Syzran Branch of Samara Technical University, 45, Sovetskaya Str., Syzran, Samara Region 446001 (Russian Federation); Institute of Nuclear Fusion, Russian Research Centre Kurchatov Institute, 1, Kurchatov Sq., Moscow 123182 (Russian Federation); Physics Institute, University of Sao Paulo, Cidade Universitaria, 05508-900, Sao Paulo, Brazil and Brazilian Center for Physics Research, Rua Xavier Sigaud, 150, 22290-180, Rio de Janeiro (Brazil)

2008-01-15T23:59:59.000Z

198

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

199

Effective Personnel Exposure Control in Shortened Refueling Outages: Final Report: Review of Remote Monitoring Systems in Radiation Protection Applications  

Science Conference Proceedings (OSTI)

Remote monitoring technology (RMT) significantly enhances worker protection and reduces worker radiation exposure, particularly during shortened refueling outages. This report provides a brief description of the hardware and features of remote monitoring systems, then focuses on nuclear plant experiences in applying such systems for enhanced radiation protection. It also discusses EPRI's RMT research program and formation of the RMT Working Group to support research in this area. Such information will gr...

2003-12-02T23:59:59.000Z

200

Experience Based Interview Process for Power Plant Management: With a Pilot Application to Aging of Outage Support Equipment  

Science Conference Proceedings (OSTI)

Plant managers are responsible for ensuring that their facilities meet strategic asset management goals in an increasingly competitive power generation marketplace. This report describes an experience based interview (EBI) method for capturing the knowledge of plant staff to more efficiently identify technical or operational issues and make management decisions that protect assets. Included is a demonstration of the method in a pilot application to aging of support equipment that could impact outages in ...

1999-04-05T23:59:59.000Z

Note: This page contains sample records for the topic "rotating electrical outages" 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

Testimonials: Presidents Management Council Interagency Rotational Program  

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

Testimonials: Presidents Management Council Interagency Rotational Testimonials: Presidents Management Council Interagency Rotational Program Testimonials: Presidents Management Council Interagency Rotational Program Diane Turchetta - Department of Transportation My rotation in EERE's Clean Cities Program has helped me to better understand how the program works and the great strides it is making, though it's coalitions, to reduce petroleum use across the country. The rotation has also provided me with an opportunity to learn more about the other efforts and initiatives underway in the Vehicle Technology Program including wireless charging for electric vehicles, research on materials technologies, and technology improvements for both light-duty and heavy-duty vehicles. I plan to use the information and knowledge I have

202

Electric vehicle drive train with rollback detection and ...  

The vehicle includes an electric motor rotatable in opposite directions corresponding to opposite directions of vehicle movement.

203

Rotating Black Holes with Monopole Hair  

E-Print Network (OSTI)

We study rotating black holes in Einstein-Yang-Mills-Higgs theory. These black holes emerge from static black holes with monopole hair when a finite horizon angular velocity is imposed. At critical values of the horizon angular velocity and the horizon radius, they bifurcate with embedded Kerr-Newman black holes. The non-Abelian black holes possess an electric dipole moment, but no electric charge is induced by the rotation. We deduce that gravitating regular monopoles possess a gyroelectric ratio g_el=2.

B. Kleihaus; J. Kunz; F. Navarro-Lerida

2004-06-23T23:59:59.000Z

204

Electricity Monthly Update  

Gasoline and Diesel Fuel Update (EIA)

Highlights: September 2011 Highlights: September 2011 Cooler temperatures drove down retail sales of electricity in the Southeast compared to September 2010. Fossil steam generation decreased in much of the United States, except in the ERCOT portion of Texas where total generation increased from September, 2010. Bituminous coal stocks dropped 18% from September 2010. Key Indicators Sept. 2011 % Change from Sept. 2010 Total Net Generation (Thousand MWh) 336,264 -3% Residential Retail Price (cents/Kwh) 12.26 2% Retail Sales (Thousand MWh) 324,357 -1% Cooling Degree-Days 184 -6% Natural Gas Price, Henry Hub ($/mmBtu) 4.04 0% Coal Stocks (Thousand Tons) 144,439 -11% Coal Consumption (Thousand Tons) 76,765 -3% Natural Gas Consumption (Mcf) 702,589 -2% Nuclear Outages (MW) 9,227 70%

205

Electricity Monthly Update  

Gasoline and Diesel Fuel Update (EIA)

Highlights: January 2012 Highlights: January 2012 Warm temperatures across much of the U.S. led to lower retail sales of electricity during January 2012. Coal-fired generation decreased in every region of the United States when compared to January 2011. Coal stocks recovered due to decreased consumption this January compared to the same month of 2011. Key Indicators Jan 2012 % Change from Jan. 2011 Total Net Generation (Thousand MWh) 340,743 -6.4% Residential Retail Price (cents/kWh) 11.43 4.4% Retail Sales (Thousand MWh) 310,859 -6.5% Heating Degree-Days 751 -21.4% Natural Gas Price, Henry Hub ($/MMBtu) 2.75 -40.3% Coal Stocks (Thousand Tons) 181,621 10.2% Coal Consumption (Thousand Tons) 70,595 -21.7% Natural Gas Consumption (Mcf) 676,045 19.9% Nuclear Outages (MW) 9,567 2.1%

206

OFFICE OF ELECTRICITY DELIVERY AND ENERGY RELIABILITY (OE)  

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

5 5 September 7, 2012 (3:00 PM EDT) http://www.oe.netl.doe.gov/emergency_sit_rpt.aspx Highlights: Hurricane Isaac made its first landfall on Tuesday, August 28 at 7:45 pm EDT in Plaquemines Parish, LA. Isaac made a second landfall along the coast of southeast Louisiana, just west of Port Fourchon, at 3:15 am EDT on Wednesday, August 29. Summary Impacted State Current Customer Outages Percentage of Customers Without Power Peak Outages Reported in DOE SitReps Customers Restored Since Peak Louisiana 6,213 < 1% 889,517 883,304 TOTAL: 6,213 Amount % Capacity Out* 501,863 36.35% 847.27 19.43% 0 NA Natural Gas Production Shut-in (mmcf/d) Refinery Capacity Shut down (b/d) Electric Outages by State Crude Oil Production Shut-In (b/d) Petroleum & Natural Gas Note: States with fewer than 1,000 outages are not included in the table. Due to a large number of service providers, including

207

SEAL FOR ROTATING SHAFT  

DOE Patents (OSTI)

A seal is described for a rotatable shaft that must highly effective when the shaft is not rotating but may be less effective while the shaft is rotating. Weights distributed about a sealing disk secured to the shaft press the sealing disk against a tubular section into which the shiilt extends, and whem the shaft rotates, the centrifugal forces on the weights relieve the pressurc of the sealing disk against the tubular section. This action has the very desirible result of minimizing the wear of the rotating disk due to contact with the tubular section, while affording maximum sealing action when it is needed.

Coffman, R.T.

1957-12-10T23:59:59.000Z

208

Non-OPEC oil supply outages remain above year-ago level ...  

U.S. Energy Information Administration (EIA)

Home; Browse by Tag; Most Popular Tags. electricity; oil/petroleum; liquid ... South Sudan has signed an agreement with Sudan on oil export fees and security ...

209

Characteristics and trends in a National Study of Consumer Outage Costs  

E-Print Network (OSTI)

1999) Niagra Mohawk (1985) Duke Energy Company (1992, 1997)Gas and Electric and Duke Energy) the same customer classesindustrial concerns (i.e. , Duke Energy, Southern Company,

Lawton, Leora; Eto, Joseph H.; Katz, Aaron; Sullivan, Michael

2003-01-01T23:59:59.000Z

210

Nuclear power plant outages above seasonal norm in spring of 2011 ...  

U.S. Energy Information Administration (EIA)

Like most electric generators, nuclear reactor operators typically schedule maintenance in the spring and the fall to help ensure that the reactors are available to ...

211

Statistics Office Electricity, Renewables Uranium Statistics ...  

U.S. Energy Information Administration (EIA)

smart grid technology and outage data collection to develop improved industry statistics. Comment ...

212

Electrical engineering Electricity  

E-Print Network (OSTI)

generation Transmission Distribution · Electrical generators · Electric motors · High voltage engineering associated with the systems Electrical engineering · Electric power generation Transmission Distribution The electricity transported to load locations from a power station transmission subsystem The transmission system

?nay, Devrim

213

6.685 Electric Machines, Fall 2003  

E-Print Network (OSTI)

Treatment of electromechanical transducers, rotating and linear electric machines. Lumped-parameter electromechanics of interaction. Development of device characteristics: energy conversion density, efficiency; and of ...

Kirtley, James L.

214

Reducing the Vulnerability of Electric Power Grids to Terrorist Attacks  

SciTech Connect

This report describes the development of a cascading outage analyzer that, given an initial disturbance on an electric power system, checks for thermal overloads, under-frequency and over-frequency conditions, and under-voltage conditions that would result in removal of elements from the system. The analyzer simulates the successive tripping of elements due to protective actions until a post-event steady state or a system blackout is reached.

Ross Baldick; Thekla Boutsika; Jin Hur; Manho Joung; Yin Wu; Minqi Zhong

2009-01-31T23:59:59.000Z

215

Battery Power for Your Residential Solar Electric System: Better Buildings Series Solar Electric Fact Sheet  

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

ELECTRIC ELECTRIC Battery Power for Your Residential Solar Electric System A Winning Combination-Design, Efficiency, and Solar Technology A battery bank stores electricity produced by a solar electric system. If your house is not connected to the utility grid, or if you antici- pate long power outages from the grid, you will need a battery bank. This fact sheet pro- vides an overview of battery basics, including information to help you select and maintain your battery bank. Types of Batteries There are many types of batteries avail- able, and each type is designed for specific applications. Lead-acid batteries have been used for residential solar electric systems for many years and are still the best choice for this application because of their low mainte- nance requirements and cost. You may

216

Design, and characterisation of impact based and non-contact piezoelectric harvesters for rotating objects.  

E-Print Network (OSTI)

??This thesis highlights two different methods of extracting electrical energy from rotational forces using impact based and non-contact based piezoelectric harvesters. In this work, the (more)

Manla, Ghaithaa

2010-01-01T23:59:59.000Z

217

Nuclear outages begin to increase with the start of the fall ...  

U.S. Energy Information Administration (EIA)

Detroit Edison Electric Company's Fermi unit 2 (1,085 MW capacity) has been operating at a reduced capacity (68%) since the beginning of the year after repairs were ...

218

DOE Announces Membership of New Electricity Advisory Committee, April 17,  

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

DOE Announces Membership of New Electricity Advisory Committee, DOE Announces Membership of New Electricity Advisory Committee, April 17, 2008 DOE Announces Membership of New Electricity Advisory Committee, April 17, 2008 DOE Press Release announcing membership of the new Electricity Advisory Committee. DOE anounced the members of its newly-established Electricity Advisory Committee. Thirty innaugural members will serve one or two year terms and include some of the nation's top public and private sector leaders in electricity policy, planning and operations. DOE Announces Membership of New Electricity Advisory Committee, April 17, 2008 More Documents & Publications Electricity Advisory Committee: 2008 Membership Roster Blackout 2003: Energy Secretary Bodman and Minister of Natural Resources for Canada Lunn Release the 2003 Power Outage Final Report, October 3, 2006

219

QUICK DISCONNECT ELECTRICAL CONNECTOR  

DOE Patents (OSTI)

A remotely actuated quick-dlsconnect electrical connector which comprises a pair of mating portrons releasably retained together by a bayonet- type joint with a rotatable sleeve on one of the mating portions providing for engagement and disengagement of the joint is described. A lanyard with ends passed through fulcrums and affixed to the sleeve erfects rotation of the sleeve and disengages the joint. (AEC)

None

1962-08-14T23:59:59.000Z

220

Grid Reliability - An Electric Utility Company's Perspective  

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

An Electric Utility Company's Perspective Marc Butts Southern Company Services 11/19/08 Topics * Business Continuity at Southern Company * NERC Cyber Security at Southern Company * Homeland Security at Southern Company * Physical recovery following a major outage * 5 questions to ask your local utility * Facing Realities 3 Service territory across four states: 120,000 square miles * Southern Linc * Southern Power * Southern Telecom * Southern Nuclear Other Subsidiaries: Serves approximately 4 million customers Business Continuity at Southern Company Southern Company Business Assurance Model Business Unit Management (Asset Owners) Southern Company Business Assurance Council Infrastructure Protection Business Continuity Incident Response * Identify critical assets * Design and implement

Note: This page contains sample records for the topic "rotating electrical outages" 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

Draft!07"18"2011! 1 Turning the Tide on Outages1  

E-Print Network (OSTI)

!a!tool!of!economic!development,!and!pondering!the!possible! revival! of! advanced! nuclear! reactor! construction.! To! prepare! for! a! more! efficient,! resilient!the!first!time!in!decades,!demand!for!electricity!stopped! growing.!Moreover,!the!prospects!of!power!from!nuclear!reactors,!based!upon!supply!and!demand!at!the!time.!In! theory,!this!will!incentivize!consumers!to!shift!their!heavy

Amin, S. Massoud

222

Rotatable seal assembly. [Patent application; rotating targets  

DOE Patents (OSTI)

An assembly is provided for rotatably supporting a rotor on a stator so that vacuum chambers in the rotor and stator remain in communication while the chambers are sealed from ambient air, which enables the use of a ball bearing or the like to support most of the weight of the rotor. The apparatus includes a seal device mounted on the rotor to rotate therewith, but shiftable in position on the rotor while being sealed to the rotor as by an O-ring. The seal device has a flat face that is biased towards a flat face on the stator, and pressurized air is pumped between the faces to prevent contact between them while spacing them a small distance apart to avoid the inflow of large amounts of air between the faces and into the vacuum chambers.

Logan, C.M.; Garibaldi, J.L.

1980-11-12T23:59:59.000Z

223

Short-Term Energy Outlook Supplement: 2013 Outlook for Gulf of Mexico Hurricane-Related Production Outages  

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

2013 Outlook for Gulf of Mexico 2013 Outlook for Gulf of Mexico Hurricane-Related Production Outages June 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | STEO Supplement: 2013 Hurricane Outlook i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or other federal agencies. June 2013 U.S. Energy Information Administration | STEO Supplement: 2013 Hurricane Outlook 1

224

2304 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 55, NO. 5, MAY 2009 Service-Outage-Based Power and Rate Control for  

E-Print Network (OSTI)

and the receiver and use the channel state information (CSI) to dynamically adapt transmit power and rate according function. The service-outage-based power and rate allocation problem is stated below. In the following, we.g., wireless RF communication, dynamic allocation of resources, e.g., transmit power and in- formation rate

Franceschetti, Massimo

225

Generic Job and Task Analysis: Handling Planned Outages and Hot Line Work  

Science Conference Proceedings (OSTI)

Switching safety and reliability are ongoing concerns in the utility industry. This report summarizes the results of a generic job and task analysis for planned switching and tagging involving the deenergization of electric utility lines and equipment and for the switching and tagging associated with hot line work. The results of this job and task analysis provide utilities with an opportunity to compare their own practices with practices employed by other utilities.

2002-08-30T23:59:59.000Z

226

Reliable Priority-Access Communication Infrastructure for Major Outage Recovery Operations  

Science Conference Proceedings (OSTI)

This report identifies and defines requirements for a secure land mobile radio (LMR) voice and data communication system to ensure interoperability between utility companies and federal, state, and local public safety agencies. The project defines a collaborative effort between the electric power industry and the United States government, specifically with the Department of Homeland Security (DHS). This report describes Phase I, which consists of a scoping study focused on the identification and definiti...

2003-11-20T23:59:59.000Z

227

Rotational Cooling of Polar Molecules by Stark-tuned Cavity Resonance  

E-Print Network (OSTI)

A general scheme for rotational cooling of diatomic heteronuclear molecules is proposed. It uses a superconducting microwave cavity to enhance the spontaneous decay via Purcell effect. Rotational cooling can be induced by sequentially tuning each rotational transition to cavity resonance, starting from the highest transition level to the lowest using an electric field. Electrostatic multipoles can be used to provide large confinement volume with essentially homogeneous background electric field.

C. H. Raymond Ooi

2003-06-04T23:59:59.000Z

228

Volatile Energy Costs and the Floundering Deregulation of Electricity: A  

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

Volatile Energy Costs and the Floundering Deregulation of Electricity: A Volatile Energy Costs and the Floundering Deregulation of Electricity: A Fresh Look at Integrating Supply-Side and Demand-Side Resources Speaker(s): Bill Kelly Robert Redlinger Date: January 19, 2001 - 12:00pm Location: 90-3148 Seminar Host/Point of Contact: Julie Osborn The restructuring of the California electricity industry has not proceeded as intended. A generation capacity shortage, combined with spiraling natural gas costs and a flawed electricity market structure, have led to unprecedented wholesale electricity prices, power outages, and a political and financial crisis for the State. This crisis will not be solved through increasing electricity supply alone. Energy industry observers agree that 1.) energy efficiency, 2.) distributed on-site generation, and 3.) price

229

Multi-agent electricity market modeling with EMCAS.  

Science Conference Proceedings (OSTI)

Electricity systems are a central component of modern economies. Many electricity markets are transitioning from centrally regulated systems to decentralized markets. Furthermore, several electricity markets that have recently undergone this transition have exhibited extremely unsatisfactory results, most notably in California. These high stakes transformations require the introduction of largely untested regulatory structures. Suitable tools that can be used to test these regulatory structures before they are applied to real systems are required. Multi-agent models can provide such tools. To better understand the requirements such as tool, a live electricity market simulation was created. This experience helped to shape the development of the multi-agent Electricity Market Complex Adaptive Systems (EMCAS) model. To explore EMCAS' potential, several variations of the live simulation were created. These variations probed the possible effects of changing power plant outages and price setting rules on electricity market prices.

North, M.; Macal, C.; Conzelmann, G.; Koritarov, V.; Thimmapuram, P.; Veselka, T.

2002-09-05T23:59:59.000Z

230

Superconductivity for Electric Systems: 2008 Annual Peer Review Final  

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

for Electric Systems: 2008 Annual Peer Review for Electric Systems: 2008 Annual Peer Review Final Report Superconductivity for Electric Systems: 2008 Annual Peer Review Final Report The Office of Electricity Delivery and Energy Reliability's High Temperature Superconductivity (HTS) for Electric Systems Program's specific mission is to work in partnership with industry to develop HTS wire and perform other research and development activities leading to the commercialization of HTS-based electric power applications by U.S. companies. This technology contributes to several key performance improvements of the grid. It enhances reliability by increasing capacity, which relieves congestion and helps prevent outages. Efficiency is improved as a result of the reduction of loss during operation which both conserves

231

Rotating Einstein-Yang-Mills Black Holes  

E-Print Network (OSTI)

We construct rotating hairy black holes in SU(2) Einstein-Yang-Mills theory. These stationary axially symmetric black holes are asymptotically flat. They possess non-trivial non-Abelian gauge fields outside their regular event horizon, and they carry non-Abelian electric charge. In the limit of vanishing angular momentum, they emerge from the neutral static spherically symmetric Einstein-Yang-Mills black holes, labelled by the node number of the gauge field function. With increasing angular momentum and mass, the non-Abelian electric charge of the solutions increases, but remains finite. The asymptotic expansion for these black hole solutions includes non-integer powers of the radial variable.

B. Kleihaus; J. Kunz; F. Navarro-Lerida

2002-07-10T23:59:59.000Z

232

Rotating Aperture System  

DOE Patents (OSTI)

A rotating aperture system includes a low-pressure vacuum pumping stage with apertures for passage of a deuterium beam. A stator assembly includes holes for passage of the beam. The rotor assembly includes a shaft connected to a deuterium gas cell or a crossflow venturi that has a single aperture on each side that together align with holes every rotation. The rotating apertures are synchronized with the firing of the deuterium beam such that the beam fires through a clear aperture and passes into the Xe gas beam stop. Portions of the rotor are lapped into the stator to improve the sealing surfaces, to prevent rapid escape of the deuterium gas from the gas cell.

Rusnak, Brian; Hall, James M.; Shen, Stewart; Wood, Richard L.

2005-01-18T23:59:59.000Z

233

Rotatable stem and lock  

DOE Patents (OSTI)

A valve stem and lock is disclosed which includes a housing surrounding a valve stem, a solenoid affixed to an interior wall of the housing, an armature affixed to the valve stem and a locking device for coupling the armature to the housing body. When the solenoid is energized, the solenoid moves away from the housing body, permitting rotation of the valve stem.

Deveney, J.E.; Sanderson, S.N.

1981-10-27T23:59:59.000Z

234

Multi-winding Homopolar Electric Machine Offers Variable Voltage ...  

Wind Energy Industrial Technologies Multi-winding Homopolar Electric Machine Offers Variable Voltage at Low Rotational Speed Oak Ridge National Laboratory. Contact ...

235

An Analysis of loss of Decay Heat Removal Trends and Initialing Event Frequencies (1989-1988): Outage Risk Assessment and Management (ORAM) Technology  

Science Conference Proceedings (OSTI)

Operating experience shows that U.S. nuclear industry initiatives have been effective at reducing the frequency and severity of reactor coolant system loss of inventory and decay heat removal incidents during shutdown. This report -- part of EPRI's Outage Risk Assessment and Management (ORAM) technology transfer efforts -- documents operating experience from 1989-1998 and compiles initiating event frequency and recovery probabilities for use in support of probabilistic shutdown safety studies.

1999-10-20T23:59:59.000Z

236

An Analysis of Loss of Decay Heat Removal Trends and Initiating Event Frequencies (1989 - 2000): Outage Risk Assessment and Manageme nt (ORAM) Technology  

Science Conference Proceedings (OSTI)

Operating experience shows that U.S. nuclear industry initiatives have been effective at reducing the long-term frequency and severity of reactor coolant system loss of inventory and decay heat removal incidents during shutdown. This report -- part of EPRI's Outage Risk Assessment and Management (ORAM (TM)) technology transfer efforts -- documents operating experience from 1989-2000 and compiles initiating event frequency and recovery probabilities for use in support of probabilistic shutdown safety stud...

2001-11-30T23:59:59.000Z

237

Maui Electrical System Simulation Model Validation  

E-Print Network (OSTI)

. The results of the production cost model were compared to the 2007 historical operating conditions in the model. · Outages were simulated in MAPS based on 2007 historical outage duration by unit. In future analyses it is likely that the 5-year average outage data, by unit, would be implemented in the model

238

Wave-driven Rotation in Supersonically Rotating Mirrors  

SciTech Connect

Supersonic rotation in mirrors may be produced by radio frequency waves. The waves produce coupled diffusion in ion kinetic and potential energy. A population inversion along the diffusion path then produces rotation. Waves may be designed to exploit a natural kinetic energy source or may provide the rotation energy on their own. Centrifugal traps for fusion and isotope separation may benefit from this wave-driven rotation.

A. Fetterman and N.J. Fisch

2010-02-15T23:59:59.000Z

239

Spin rotation of polarized beams in high energy storage ring  

E-Print Network (OSTI)

The equations for spin evolution of a particle in a storage ring are obtained considering contributions from the tensor electric and magnetic polarizabilities of the particle along with the contributions from spin rotation and birefringence effect in polarized matter of an internal target. % Study of the spin rotation and birefringence effects for a particle in a high energy storage ring provides for measurement both the spin-dependent real part of the coherent elastic zero-angle scattering amplitude and tensor electric (magnetic) polarizabilities.

V. G. Baryshevsky

2006-03-23T23:59:59.000Z

240

Case Study - National Rural Electric Cooperative Association Smart Grid Investment Grant  

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

National Rural Electric Cooperative Association Smart Grid Investment Grant National Rural Electric Cooperative Association Smart Grid Investment Grant 1 Helping America's Electric Cooperatives Build a Smarter Grid to Streamline Operations and Improve Service Electric cooperatives play an important role in the U.S. energy infrastructure, delivering electricity to 44 million consumers across over 70% of the geography of the country every day. Implementing smart grid technology is seen by co-ops as a cost-effective way to improve reliability, streamline the restoration of electricity following outages and improve customer service. At the National Rural Electric Cooperative Association (NRECA), an Arlington, VA-based organization that provides services to more than 900 not- for-profit electric cooperatives nationwide, work is underway to study the impacts of smart grid

Note: This page contains sample records for the topic "rotating electrical outages" 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

Electric turbocompound control system  

DOE Patents (OSTI)

Turbocompound systems can be used to affect engine operation using the energy in exhaust gas that is driving the available turbocharger. A first electrical device acts as a generator in response to turbocharger rotation. A second electrical device acts as a motor to put mechanical power into the engine, typically at the crankshaft. Apparatus, systems, steps, and methods are described to control the generator and motor operations to control the amount of power being recovered. This can control engine operation closer to desirable parameters for given engine-related operating conditions compared to actual. The electrical devices can also operate in "reverse," going between motor and generator functions. This permits the electrical device associated with the crankshaft to drive the electrical device associated with the turbocharger as a motor, overcoming deficient engine operating conditions such as associated with turbocharger lag.

Algrain, Marcelo C. (Dunlap, IL)

2007-02-13T23:59:59.000Z

242

Stochastic Faraday Rotation  

E-Print Network (OSTI)

Different ray paths through a turbulent plasma can produce stochastic Faraday rotation leading to depolarization of any linearly polarized component. Simple theory predicts that the average values of the Stokes parameters decay according to $$, $\\propto\\exp(-\\delta_l)$, with $\\delta_l\\propto\\lambda^4$. It is pointed out that a definitive test for such depolarization is provided by the fact that $$ remains constant while $^2+^2$ decreases $\\propto\\exp(-2\\delta_l)$. The averages to which this effect, called polarization covariance, should apply are discussed; it should apply to spatial averages over a polarization map or temporal averages over a data set, but not to beamwidth and bandwidth averages that are intrinsic to the observation process. Observations of depolarization would provide statistical information on fluctuations in the turbulent plasma along the line of sight, specifically, the variance of the rotation measure. Other effects that can also cause depolarization are discussed.

D. B. Melrose; J. -P. Macquart

1998-05-01T23:59:59.000Z

243

Rotatable seal assembly  

DOE Patents (OSTI)

An assembly is provided for rotatably supporting a rotor on a stator so that vacuum chambers in the rotor and stator remain in communication while the chambers are sealed from ambient air, which enables the use of a ball bearing or the like to support most of the weight of the rotor. The apparatus includes a seal device mounted on the rotor to rotate therewith, but shiftable in position on the rotor while being sealed to the rotor as by an O-ring. The seal device has a flat face that is biased towards a flat face on the stator, and pressurized air is pumped between the faces to prevent contact between them while spacing them a small distance apart to avoid the inflow of large amounts of air between the faces and into the vacuum chambers.

Logan, Clinton M. (Pleasanton, CA); Garibaldi, Jack L. (Livermore, CA)

1982-01-01T23:59:59.000Z

244

Rotating plug bearing and seal  

DOE Patents (OSTI)

A bearing and seal structure for nuclear reactors utilizing rotating plugs above the nuclear reactor vessel. The structure permits lubrication of bearings and seals of the rotating plugs without risk of the lubricant draining into the reactor vessel below. The structure permits lubrication by utilizing a rotating outer race bearing.

Wade, Elman E. (Ruffs Dale, PA)

1977-01-01T23:59:59.000Z

245

Protecting the Electric Grid from Increasingly Severe Weather Due to  

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

Protecting the Electric Grid from Increasingly Severe Weather Due Protecting the Electric Grid from Increasingly Severe Weather Due to Climate Change Protecting the Electric Grid from Increasingly Severe Weather Due to Climate Change August 12, 2013 - 5:25pm Addthis Transmission lines along Highway 15 outside Victorville, California. | Photo courtesy of Abby Rowling. Transmission lines along Highway 15 outside Victorville, California. | Photo courtesy of Abby Rowling. Patricia A. Hoffman Patricia A. Hoffman Assistant Secretary, Office of Electricity Delivery & Energy Reliability Jim Stock Member - White House Council of Economic Advisers EDITOR'S NOTE: This article originally appeared on WhiteHouse.gov. This week marks the tenth anniversary of one of the worst power outages in the United States, during which tens of millions of Americans were affected

246

Protecting the Electric Grid from Increasingly Severe Weather Due to  

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

Protecting the Electric Grid from Increasingly Severe Weather Due Protecting the Electric Grid from Increasingly Severe Weather Due to Climate Change Protecting the Electric Grid from Increasingly Severe Weather Due to Climate Change August 12, 2013 - 5:25pm Addthis Transmission lines along Highway 15 outside Victorville, California. | Photo courtesy of Abby Rowling. Transmission lines along Highway 15 outside Victorville, California. | Photo courtesy of Abby Rowling. Patricia A. Hoffman Patricia A. Hoffman Assistant Secretary, Office of Electricity Delivery & Energy Reliability Jim Stock Member - White House Council of Economic Advisers EDITOR'S NOTE: This article originally appeared on WhiteHouse.gov. This week marks the tenth anniversary of one of the worst power outages in the United States, during which tens of millions of Americans were affected

247

COMMISSIONING SPIN ROTATORS IN RHIC.  

Science Conference Proceedings (OSTI)

During the summer of 2002, eight superconducting helical spin rotators were installed into RHIC in order to control the polarization directions independently at the STAR and PHENIX experiments. Without the rotators, the orientation of polarization at the interaction points would only be vertical. With four rotators around each of the two experiments, we can rotate either or both beams from vertical into the horizontal plane through the interaction region and then back to vertical on the other side. This allows independent control for each beam with vertical, longitudinal, or radial polarization at the experiment. In this paper, we present results from the first run using the new spin rotators at PHENIX.

Mackay, W W; Bai, M; Courant, E D; Fischer, W; Huang, H; Luccio, A; Montag, C; Pilat, F; Ptitsyn, V; Roser, T; Satogata, T; Trbojevic, D

2003-05-12T23:59:59.000Z

248

Electrical Engineering is a diverse discipline encompassing computer and information systems, controls, lasers,  

E-Print Network (OSTI)

. Concepts in rotating machinery analysis. Direct energy conversion. Prerequisite: EE 330. 390 Special70 ELECTRICAL Electrical Engineering is a diverse discipline encompassing computer and information environmental engineering and manufacturing to semiconductors and telecommunications. The Electrical Engineering

Rohs, Remo

249

Powertrain system for a hybrid electric vehicle  

DOE Patents (OSTI)

A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration. 34 figs.

Reed, R.G. Jr.; Boberg, E.S.; Lawrie, R.E.; Castaing, F.J.

1999-08-31T23:59:59.000Z

250

Powertrain system for a hybrid electric vehicle  

DOE Patents (OSTI)

A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration.

Reed, Jr., Richard G. (Royal Oak, MI); Boberg, Evan S. (Hazel Park, MI); Lawrie, Robert E. (Whitmore Lake, MI); Castaing, Francois J. (Bloomfield Township, MI)

1999-08-31T23:59:59.000Z

251

ELECTRIC CONTACT MEANS  

DOE Patents (OSTI)

A switch adapted to maintain electrical connections under conditions of vibration or acceleration is described. According to the invention, thc switch includes a rotatable arm carrying a conductive bar arranged to close against two contacts spaced in the same plane. The firm and continuous engagement of the conductive bar with the contacts is acheived by utilizeing a spring located betwenn the vbar and athe a rem frzme and slidable mounting the bar in channel between two arms suspendef from the arm frame.

Grear, J.W. Jr.

1959-03-10T23:59:59.000Z

252

Electric Vehicles  

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

Electricity can be used as a transportation fuel to power battery electric vehicles (EVs). EVs store electricity in an energy storage device, such as a battery.

253

Electrical Condition Assessment of Polymer Insulators for Live Working: Progress Reports for the Development of a Portable Tester  

Science Conference Proceedings (OSTI)

Many utilities perform live work to avoid the need for outages. Safety is of utmost importance when performing live work, and the condition of the transmission line equipment is critical to the safety of the line workers. Many of the utilities moving toward live working have polymer insulators installed on their lines. Unlike porcelain or glass insulators, electrically defective polymer insulators are difficult to identify. Currently, no portable tools are available for use by line workers to detect poly...

2005-01-31T23:59:59.000Z

254

OFFICE OF ELECTRICITY DELIVERY AND ENERGY RELIABILITY (OE)  

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

Sandy-Nor'easter Situation Report #13 Sandy-Nor'easter Situation Report #13 December 3, 2012 (3:00 PM EST) http://www.oe.netl.doe.gov/emergency_sit_rpt.aspx Highlights: Beginning November 7 th , a Nor'easter impacted the Mid-Atlantic and Northeast with strong winds, rain or snow, and coastal flooding. At 8:00 pm EDT October 29, the National Hurricane Center reported Sandy made landfall near Atlantic City, NJ as a post tropical cyclone. All customers who are able to receive electricity and who lost power due to Sandy and the Nor'easter have had their electricity restored. The combined total peak customer electricity outages from Hurricane Sandy and the Nor'easter (reported in the DOE Situation Reports) are 8,661,527:

255

Very Low Frequency (VLF) Hipot Testing of Rotating Machine Stator Winding Insulation  

Science Conference Proceedings (OSTI)

High-potential (hipot) tests are performed to determine whether winding insulation in rotating electrical machinery has a minimum level of electrical strength to successfully survive electrical stresses in normal service for the expected life of the machine. In recent years, the Electric Power Research Institute (EPRI) has been engaged in helping to clarify industry practices and investigate questions about specific aspects of hipot testing. One topic of interest to the industry is the use of very-low-fr...

2011-12-23T23:59:59.000Z

256

Electrically charged dilatonic black rings  

E-Print Network (OSTI)

In this note we present (electrically) charged dilatonic black ring solutions of the Einstein-Maxwell-dilaton theory in five dimensions and we consider their physical properties. These solutions are static and as in the neutral case possess a conical singularity. We show how one may remove the conical singularity by application of a Harrison transformation, which physically corresponds to supporting the charged ring with an electric field. Finally, we discuss the slowly rotating case for arbitrary dilaton coupling.

Hari K. Kunduri; James Lucietti

2004-12-14T23:59:59.000Z

257

Role of wind power in electric utilities  

SciTech Connect

Current estimates suggest that the cost of wind-generated power is likely to be competitive with conventionally generated power in the near future in regions of the United States with favorable winds and high costs for conventionally generated electricity. These preliminary estimates indicate costs of $500 to 700 per installed kW for mass-produced wind turbines. This assessment regarding competitiveness includes effects of reduced reliability of wind power compared to conventional sources. Utilities employing wind power are likely to purchase more peaking capacity and less baseload capacity than they would have otherwise to provide the lowest-cost reserve power. This reserve power is needed mainly when wind outages coincide with peak loads. The monetary savings associated with this shift contribute substantially to the value of wind energy to a utility.

Davitian, H

1977-09-01T23:59:59.000Z

258

Machine learning methods for the estimation of weather and animal-related power outages on overhead distribution feeders.  

E-Print Network (OSTI)

??Because a majority of day-to-day activities rely on electricity, it plays an important role in daily life. In this digital world, most of the peoples (more)

Kankanala, Padmavathy

2013-01-01T23:59:59.000Z

259

Electric dipole emission by fullerenes and buckyonions  

E-Print Network (OSTI)

We study the rotation rates and electric dipole emission of hydrogenated icosahedral fullerenes (single and multishell) in various phases of the interstellar medium. Using the formalism of Draine and Lazarian for the rotational dynamics of these molecules in various astrophysical environments, we find effective rotation rates in the range 1-65 GHz with a trend toward lower rotational frequency as the radius of the molecule increases. Owing to the moderately polar nature of the C--H bond, hydrogenated fullerenes (fulleranes) are expected to have a net dipole moment and produce electric dipole radiation. Adopting the same size distribution proposed for fullerenes in the study of the UV extinction bump (2175 \\AA) we predict the dipole electric emission of mixtures of fulleranes for various levels of hydrogenation. We find that these molecules could be the carriers of the anomalous microwave emission recently detected by Watson et al. in the Perseus molecular complex.

Susana Iglesias-Groth

2005-09-15T23:59:59.000Z

260

North American Electricity Infrastructure: System Security, Quality, Reliability, Availability, and Efficiency  

E-Print Network (OSTI)

controls and restoration. Widespread outages and huge price spikes during the past few years raised public or months, while larger outages occur every two to nine years and affect millions. Much larger outages outage is estimated to have a cost in the range of $6-$10 billions. Past disturbances in both the power

Amin, S. Massoud

Note: This page contains sample records for the topic "rotating electrical outages" 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

Multi-winding homopolar electric machine  

SciTech Connect

A multi-winding homopolar electric machine and method for converting between mechanical energy and electrical energy. The electric machine includes a shaft defining an axis of rotation, first and second magnets, a shielding portion, and a conductor. First and second magnets are coaxial with the shaft and include a charged pole surface and an oppositely charged pole surface, the charged pole surfaces facing one another to form a repulsive field therebetween. The shield portion extends between the magnets to confine at least a portion of the repulsive field to between the first and second magnets. The conductor extends between first and second end contacts and is toroidally coiled about the first and second magnets and the shield portion to develop a voltage across the first and second end contacts in response to rotation of the electric machine about the axis of rotation.

Van Neste, Charles W

2012-10-16T23:59:59.000Z

262

Joint Maintenance Status Report of Potomac Electric Power Company amd PJM  

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

Joint Maintenance Status Report of Potomac Electric Power Company Joint Maintenance Status Report of Potomac Electric Power Company amd PJM Interconnection, LLC Joint Maintenance Status Report of Potomac Electric Power Company amd PJM Interconnection, LLC Docket No. EO-05-01: Potomac Electric Power Company ("Pepco") and PJM Interconnection, L.L.C. ("PJM") hereby jointly submit this Maintenance Report to advise you of the work completed and findings made during the maintenance outages for Pepco's two 230 kV circuits from the Palmers Comer to Potomac River substations pursuant to the December 20. 2006, Department of Energy ("DOE") Order No. 202-05-3. Joint Maintenance Status Report of Potomac Electric Power Company amd PJM Interconnection, LLC More Documents & Publications Special Environmental Analysis For Actions Taken under U.S. Department of

263

User's guide to SERICPAC: A computer program for calculating electric-utility avoided costs rates  

DOE Green Energy (OSTI)

SERICPAC is a computer program developed to calculate average avoided cost rates for decentralized power producers and cogenerators that sell electricity to electric utilities. SERICPAC works in tandem with SERICOST, a program to calculate avoided costs, and determines the appropriate rates for buying and selling of electricity from electric utilities to qualifying facilities (QF) as stipulated under Section 210 of PURA. SERICPAC contains simulation models for eight technologies including wind, hydro, biogas, and cogeneration. The simulations are converted in a diversified utility production which can be either gross production or net production, which accounts for an internal electricity usage by the QF. The program allows for adjustments to the production to be made for scheduled and forced outages. The final output of the model is a technology-specific average annual rate. The report contains a description of the technologies and the simulations as well as complete user's guide to SERICPAC.

Wirtshafter, R.; Abrash, M.; Koved, M.; Feldman, S.

1982-05-01T23:59:59.000Z

264

Rotation With Industry | Department of Energy  

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

Rotation With Industry Rotation With Industry 7ROTATIONWITHINDUSTRY.pdf More Documents & Publications Microsoft Word - APRIL 2009 PMCDP Module CHRIS ESS TutorialINITIALENTRYO...

265

Centrifugal torque in rotating matter  

E-Print Network (OSTI)

Thermal molecular motion in combination with rotation and differences in centrifugal forces causes a torque in matter. The effect is derived for gas but does also exist in liquid and solid matter.

Jonsson, David

2010-01-01T23:59:59.000Z

266

Electricity Reliability  

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

lines and bar graph Electricity Reliability The Consortium for Electric Reliability Technology Solutions (CERTS) conducts research, develops, and disseminates new methods, tools,...

267

Electric Vehicles  

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

government incentives or subsidies in the near future. Companies active in the electric automobile area There are no companies directly active in the electric automobile...

268

NREL: Learning - Geothermal Electricity Production  

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

Electricity Production Electricity Production Photo of a geothermal power plant. This geothermal power plant generates electricity for the Imperial Valley in California. Geothermal power plants use steam produced from reservoirs of hot water found a few miles or more below the Earth's surface to produce electricity. The steam rotates a turbine that activates a generator, which produces electricity. There are three types of geothermal power plants: dry steam, flash steam, and binary cycle. Dry Steam Dry steam power plants draw from underground resources of steam. The steam is piped directly from underground wells to the power plant where it is directed into a turbine/generator unit. There are only two known underground resources of steam in the United States: The Geysers in northern California and Yellowstone National Park in Wyoming, where there's

269

Plasma Frequency Shift Due to a Slowly Rotating Compact Star  

E-Print Network (OSTI)

We investigate the effects of a slowly rotating compact gravitational source on electron oscillations in a homogeneous electrically neutral plasma in the absence of an external electric or magnetic field. Neglecting the random thermal motion of the electrons we assume the gravitoelectromagnetic approximation to the general theory of relativity for the gravitational field. It is shown that there is a shift in the plasma frequency and hence in the dielectric constant of the plasma due to the gravitomagnetic force. We also give estimates for the difference in the frequency of radially transmitted electromagnetic signals for typical compact star candidates.

Babur M. Mirza; Hamid Saleem

2005-01-01T23:59:59.000Z

270

E-laboratories : agent-based modeling of electricity markets.  

SciTech Connect

Electricity markets are complex adaptive systems that operate under a wide range of rules that span a variety of time scales. These rules are imposed both from above by society and below by physics. Many electricity markets are undergoing or are about to undergo a transition from centrally regulated systems to decentralized markets. Furthermore, several electricity markets have recently undergone this transition with extremely unsatisfactory results, most notably in California. These high stakes transitions require the introduction of largely untested regulatory structures. Suitable laboratories that can be used to test regulatory structures before they are applied to real systems are needed. Agent-based models can provide such electronic laboratories or ''e-laboratories.'' To better understand the requirements of an electricity market e-laboratory, a live electricity market simulation was created. This experience helped to shape the development of the Electricity Market Complex Adaptive Systems (EMCAS) model. To explore EMCAS' potential as an e-laboratory, several variations of the live simulation were created. These variations probed the possible effects of changing power plant outages and price setting rules on electricity market prices.

North, M.; Conzelmann, G.; Koritarov, V.; Macal, C.; Thimmapuram, P.; Veselka, T.

2002-05-03T23:59:59.000Z

271

E-laboratories : agent-based modeling of electricity markets.  

SciTech Connect

Electricity markets are complex adaptive systems that operate under a wide range of rules that span a variety of time scales. These rules are imposed both from above by society and below by physics. Many electricity markets are undergoing or are about to undergo a transition from centrally regulated systems to decentralized markets. Furthermore, several electricity markets have recently undergone this transition with extremely unsatisfactory results, most notably in California. These high stakes transitions require the introduction of largely untested regulatory structures. Suitable laboratories that can be used to test regulatory structures before they are applied to real systems are needed. Agent-based models can provide such electronic laboratories or ''e-laboratories.'' To better understand the requirements of an electricity market e-laboratory, a live electricity market simulation was created. This experience helped to shape the development of the Electricity Market Complex Adaptive Systems (EMCAS) model. To explore EMCAS' potential as an e-laboratory, several variations of the live simulation were created. These variations probed the possible effects of changing power plant outages and price setting rules on electricity market prices.

North, M.; Conzelmann, G.; Koritarov, V.; Macal, C.; Thimmapuram, P.; Veselka, T.

2002-05-03T23:59:59.000Z

272

Impact of increased electric vehicle use on battery recycling infrastructure  

DOE Green Energy (OSTI)

State and Federal regulations have been implemented that are intended to encourage more widespread use of low-emission vehicles. These regulations include requirements of the California Air Resources Board (CARB) and regulations pursuant to the Clean Air Act Amendments of 1990 and the Energy Policy Act. If the market share of electric vehicles increases in response to these initiatives, corresponding growth will occur in quantities of spent electric vehicle batteries for disposal. Electric vehicle battery recycling infrastructure must be adequate to support collection, transportation, recovery, and disposal stages of waste battery handling. For some battery types, such as lead-acid, a recycling infrastructure is well established; for others, little exists. This paper examines implications of increasing electric vehicle use for lead recovery infrastructure. Secondary lead recovery facilities can be expected to have adequate capacity to accommodate lead-acid electric vehicle battery recycling. However, they face stringent environmental constraints that may curtail capacity use or new capacity installation. Advanced technologies help address these environmental constraints. For example, this paper describes using backup power to avoid air emissions that could occur if electric utility power outages disable emissions control equipment. This approach has been implemented by GNB Technologies, a major manufacturer and recycler of lead-acid batteries. Secondary lead recovery facilities appear to have adequate capacity to accommodate lead waste from electric vehicles, but growth in that capacity could be constrained by environmental regulations. Advances in lead recovery technologies may alleviate possible environmental constraints on capacity growth.

Vimmerstedt, L.; Hammel, C. [National Renewable Energy Lab., Golden, CO (United States); Jungst, R. [Sandia National Labs., Albuquerque, NM (United States)

1996-12-01T23:59:59.000Z

273

The rotational spectrum of CuCCH(1+): A Fourier transform microwave discharge assisted laser ablation spectroscopy and  

E-Print Network (OSTI)

spectra were analyzed with an effective Hamiltonian, and rotational, electric quadrupole Cu and D reagents have widespread usage in or- ganic chemistry.1 These compounds have many desirable synthetic

Ziurys, Lucy M.

274

Collisionality Scaling of Main-ion Toroidal and Poloidal Rotation in Low Torque DIII-D Plasmas  

SciTech Connect

In tokamak plasmas with low levels of toroidal rotation, the radial electric fi eld Er is a combination of pressure gradient and toroidal and poloidal rotation components, all having similar magnitudes. In order to assess the validity of neoclassical poloidal rotation theory for determining the poloidal rotation contribution to Er , D? emission from neutral beam heated tokamak discharges in DIII-D [J.L. Luxon, Nucl. Fusion 42 , 614 (2002)] has been evaluated in a sequence of low torque (electron cyclotron resonance heating and balanced diagnostic neutral beam pulse) discharges to determine the local deuterium toroidal rotation velocity. By invoking the radial force balance relation the deuterium poloidal rotation can be inferred. It is found that the deuterium poloidal low exceeds the neoclassical value in plasmas with collisionality #23;#3; ?i < 0: 1, being more ion diamagnetic, and with a stronger dependence on collisionality than neoclassical theory predicts. At low toroidal rotation, the poloidal rotation contribution to the radial electric fi eld and its shear is signi cant. The eff ect of anomalous levels of poloidal rotation on the radial electric fi eld and cross fi eld heat transport is investigated for ITER parameters.

B A Grierson, et al

2013-05-10T23:59:59.000Z

275

Type B investigation of electrical fault in 351 Substation, December 4, 1994  

Science Conference Proceedings (OSTI)

On December 4, 1994, at 2132:10 hours, an electrical failure of a cable-tapping splice resulted in a fire in the 300 Area of the DOE Hanford Site. The fire occurred in the yard of Substation 351 in electrical Vault R122V, where the cable-tapping splice was located. The fire incinerated all cables passing to and through the vault causing them to fail. The failure of the cables resulted in a power outage to twenty customers in the 300 Area. The vault was electrically isolated, and power was restored to the electrical distribution system at 2311 hours. This report contains the accident scenario, accident analysis, direct cause and root and contributing causes.

Debban, H.L.; Shearer, C.A.; Boger, R.M.; McDonald, G.P. [ICF Kaiser Hanford Co., Richland, WA (United States); Eyre, L.E.; Dell, L.D.; Kelly, D.S. [Westinghouse Hanford Co., Richland, WA (United States)

1995-02-01T23:59:59.000Z

276

Electricity Markets  

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

Electricity Markets Electricity Markets Researchers in the electricity markets area conduct technical, economic, and policy analysis of energy topics centered on the U.S. electricity sector. Current research seeks to inform public and private decision-making on public-interest issues related to energy efficiency and demand response, renewable energy, electricity resource and transmission planning, electricity reliability and distributed generation resources. Research is conducted in the following areas: Energy efficiency research focused on portfolio planning and market assessment, design and implementation of a portfolio of energy efficiency programs that achieve various policy objectives, utility sector energy efficiency business models, options for administering energy efficiency

277

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

278

Holder for rotating glass body  

DOE Patents (OSTI)

A device is provided for holding and centering a rotating glass body such as a rod or tube. The device includes a tubular tip holder which may be held in a lathe chuck. The device can utilize a variety of centering tips each adapted for a particular configuration, such as a glass O-ring joint or semi-ball joint.

Kolleck, Floyd W. (Clarendon Hills, IL)

1978-04-04T23:59:59.000Z

279

Rotating control head applications increasing  

Science Conference Proceedings (OSTI)

Rotating control head technology has become an important tool for lowering drilling costs and increasing well productivity, especially in many hard-rock areas and mature oil and gas fields. Lower drilling costs are achieved primarily by the faster penetration rates, reduced nondrilling time, and reduced mud volume requirements associated with underbalanced drilling. Greater well productivity can sometimes be obtained because of reduced formation damage for mud. Recent advances in rotating head technology have increased the range of well conditions to which this technology can be applied. Even though the use of rotating control heads is growing rapidly, this topic has been largely neglected in most well control training programs. Many engineers are not yet familiar with this important emerging technology and some of the modern concepts and practices used. The paper discusses the high-pressure rotating head and its application to gas or air drilling, flow drilling, geothermal drilling, overbalanced drilling and workover operations. The paper also discusses operating guidelines and rig crew training.

Bourgoyne, A.T. Jr. [Louisiana State Univ., Baton Rouge, LA (United States)

1995-10-09T23:59:59.000Z

280

Hydrogen rotation-vibration oscillator  

DOE Patents (OSTI)

A laser system is described wherein molecular species of hydrogen and hydrogen isotopes are induced to oscillate on rotational-vibrational levels by subjecting the hydrogen to a transverse beam of electrons of a narrowly defined energy between about 1 and 5 eV, thereby producing high intensity and high energy output. (Official Gazette)

Rhodes, C.K.

1974-01-29T23:59:59.000Z

Note: This page contains sample records for the topic "rotating electrical outages" 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

Wave-Driven Rotation In Centrifugal Mirrors  

SciTech Connect

Centrifugal mirrors use supersonic rotation to provide axial confinement and enhanced stability. Usually the rotation is produced using electrodes, but these electrodes have limited the rotation to the Alfven critical ionization velocity, which is too slow to be useful for fusion. Instead, the rotation could be produced using radio frequency waves. A fixed azimuthal ripple is a simple and efficient wave that could produce rotation by harnessing alpha particle energy. This is an extension of the alpha channeling effect. The alpha particle power and efficiency in a simulated devices is sufficient to produce rotation without external energy input. By eliminating the need for electrodes, this opens new opportunities for centrifugal traps.

Abraham J. Fetterman and Nathaniel J. Fisch

2011-03-28T23:59:59.000Z

282

California Electric Energy Crisis - Electricity Information  

U.S. Energy Information Administration (EIA)

Electricity Information Available Formats; Status of Electric Industry Restructuring Activity in California: html: California State Electricity Profil ...

283

Quantum Electrical Measurements Portal  

Science Conference Proceedings (OSTI)

NIST Home > Quantum Electrical Measurements Portal. Quantum Electrical Measurements Portal. Subject Areas. Electrical ...

2013-03-21T23:59:59.000Z

284

Electric vehicles  

SciTech Connect

Quiet, clean, and efficient, electric vehicles (EVs) may someday become a practical mode of transportation for the general public. Electric vehicles can provide many advantages for the nation's environment and energy supply because they run on electricity, which can be produced from many sources of energy such as coal, natural gas, uranium, and hydropower. These vehicles offer fuel versatility to the transportation sector, which depends almost solely on oil for its energy needs. Electric vehicles are any mode of transportation operated by a motor that receives electricity from a battery or fuel cell. EVs come in all shapes and sizes and may be used for different tasks. Some EVs are small and simple, such as golf carts and electric wheel chairs. Others are larger and more complex, such as automobile and vans. Some EVs, such as fork lifts, are used in industries. In this fact sheet, we will discuss mostly automobiles and vans. There are also variations on electric vehicles, such as hybrid vehicles and solar-powered vehicles. Hybrid vehicles use electricity as their primary source of energy, however, they also use a backup source of energy, such as gasoline, methanol or ethanol. Solar-powered vehicles are electric vehicles that use photovoltaic cells (cells that convert solar energy to electricity) rather than utility-supplied electricity to recharge the batteries. This paper discusses these concepts.

Not Available

1990-03-01T23:59:59.000Z

285

Central Hudson Gas & Electric (Electric) - Commercial Lighting...  

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

You are here Home Savings Central Hudson Gas & Electric (Electric) - Commercial Lighting Rebate Program Central Hudson Gas & Electric (Electric) - Commercial Lighting Rebate...

286

On computing givens rotations reliably and efficiently  

Science Conference Proceedings (OSTI)

We consider the efficient and accurate computation of Givens rotations. When f and g are positive real numbers, this simply amounts to computing the values of c = f/?f2 + g2, s ... Keywords: BLAS, Givens rotation, linear algebra

David Bindel; James Demmel; William Kahan; Osni Marques

2002-06-01T23:59:59.000Z

287

Rotation generation and transport in tokamak plasmas  

E-Print Network (OSTI)

Plasma toroidal rotation is a factor important for plasma stability and transport, but it is still a fairly poorly understood area of physics. This thesis focuses on three aspects of rotation: momentum transport, Ohmic ...

Podpaly, Yuri Anatoly

2012-01-01T23:59:59.000Z

288

Accelerating and rotating black holes  

E-Print Network (OSTI)

An exact solution of Einstein's equations which represents a pair of accelerating and rotating black holes (a generalised form of the spinning C-metric) is presented. The starting point is a form of the Plebanski-Demianski metric which, in addition to the usual parameters, explicitly includes parameters which describe the acceleration and angular velocity of the sources. This is transformed to a form which explicitly contains the known special cases for either rotating or accelerating black holes. Electromagnetic charges and a NUT parameter are included, the relation between the NUT parameter $l$ and the Plebanski-Demianski parameter $n$ is given, and the physical meaning of all parameters is clarified. The possibility of finding an accelerating NUT solution is also discussed.

J. B. Griffiths; J. Podolsky

2005-07-06T23:59:59.000Z

289

Nonequilibrium stationary state for a damped rotator  

E-Print Network (OSTI)

Perturbative construction of the nonequilibrium steady state of a rotator under a stochastic forcing while subject to torque and friction

Giovanni Gallavotti; Alessandra Iacobucci; Stefano Olla

2013-10-20T23:59:59.000Z

290

Gravity controlled anti-reverse rotation device  

DOE Patents (OSTI)

A gravity assisted anti-reverse rotation device for preventing reverse rotation of pumps and the like. A horizontally mounted pawl is disposed to mesh with a fixed ratchet preventing reverse rotation when the pawl is advanced into intercourse with the ratchet by a vertically mounted lever having a lumped mass. Gravitation action on the lumped mass urges the pawl into mesh with the ratchet, while centrifugal force on the lumped mass during forward, allowed rotation retracts the pawl away from the ratchet.

Dickinson, Robert J. (Shaler Township, Allegheny County, PA); Wetherill, Todd M. (Lower Burrell, PA)

1983-01-01T23:59:59.000Z

291

Performance issues for a changing electric power industry  

SciTech Connect

Extremely cold weather created record demands for electricity in the eastern two-thirds of the United States during the week of January 16, 1994. Fuel-related problems, mostly the result of transportation constraints resulting from ice accumulation on roads and water-ways, and unexpected generating capacity outages at utilities and nonutilities resulted in demand not being met. Some utilities asked nonessential customers along with State governments and a portion of the Federal Government to shut down. Two electric control areas, the Pennsylvania-New Jersey-Maryland Interconnection (PJM) and Virginia Electric & Power Company (VEPCO), instituted rolling blackouts. This disturbance was reported widely in the press and, along with other disturbances, peaked renewed interest in the reliability of the electric power system. The renewed interest in reliability has coincided with substantial changes that are beginning to occur in the structure and competitiveness of the electric power industry. Juxtaposing the question of reliability and the issue of changing industry structure leads to the central concern of this report: What effect, if any, will the changing structure of the industry have on the reliability of the system?

Not Available

1995-01-01T23:59:59.000Z

292

Planetary waves in rotating ionosphere  

Science Conference Proceedings (OSTI)

The problem of propagation of ultralong planetary waves in the Earth's upper atmosphere is considered. A new exact solution to the MHD equations for the ionosphere is obtained in spherical coordinates with allowance for the geomagnetic field and Earth's rotation. A general dispersion relation is derived for planetary waves in the ionospheric E and F regions, and the characteristic features of their propagation in a weakly ionized ionospheric plasma are discussed.

Khantadze, A. G.; Jandieri, V. G. [Tbilisi State University (Georgia); Jandieri, G. V. [Georgian Technical University (Georgia)

2008-06-15T23:59:59.000Z

293

Visualization of manhole and precursor-type events for the Manhattan electrical distribution system  

E-Print Network (OSTI)

We present a visualization framework for analyzing the Consolidated Edison Company of New York (Con Edison) trouble tickets for the Manhattan electrical distribution system. The Con Edison Emergency Control System (ECS) is a work management tool that documents all events that occur in the electrical distribution system. The trouble ticket generated from ECS is a record of an event affecting the secondary (low-voltage) electrical distribution system, such as a manhole fire, manhole explosion, smoking manhole, no-light event, flickering light event, side-off partial outage, or burnout. The visualization tool outlined here is used alongside our preliminary statistical and machine learning work for predicting future manhole events. ECS tickets stored in our PostgreSQL database are displayed using Google Earths satellite images of Manhattan as a backdrop. The ability of this tool to display events relative to the surrounding buildings has already yielded some highly promising directions for our ongoing analysis.

Haimonti Dutta; Cynthia Rudin; Becky Passonneau; Fred Seibel; Axinia Radeva; Zhi An Liu; Steve Ierome; Delfina Isaac

2008-01-01T23:59:59.000Z

294

A magneto-electric quantum wheel  

E-Print Network (OSTI)

Here we show that self-propulsion in quantum vacuum may be achieved by rotating or aggregating magneto-electric nano-particles. The back-action follows from changes in momentum of electro-magnetic zero-point fluctuations, generated in magneto-electric materials. This effect may provide new tools for investigation of the quantum nature of our world. It might also serve in the future as a "quantum wheel" to correct satellite orientation in space.

Alexander Feigel

2009-12-05T23:59:59.000Z

295

Thermodynamic geometry of charged rotating BTZ black holes  

SciTech Connect

We study the thermodynamics and the thermodynamic geometries of charged rotating Banados-Teitelboim-Zanelli black holes in (2+1)-gravity. We investigate the thermodynamics of these systems within the context of the Weinhold and Ruppeiner thermodynamic geometries and the recently developed formalism of geometrothermodynamics. Considering the behavior of the heat capacity and the Hawking temperature, we show that Weinhold and Ruppeiner geometries cannot describe completely the thermodynamics of these black holes and of their limiting case of vanishing electric charge. In contrast, the Legendre invariance imposed on the metric in geometrothermodynamics allows one to describe the charged rotating Banados-Teitelboim-Zanelli black holes and their limiting cases in a consistent and invariant manner.

Akbar, M. [Center for Advanced Mathematics and Physics, National University of Sciences and Technology, H-12, Islamabad (Pakistan); Quevedo, H. [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, AP 70543, Mexico, DF 04510 (Mexico); ICRANet, Dipartimento di Fisica, Universita di Roma La Sapienza, I-00185 Roma (Italy); Saifullah, K. [Department of Mathematics, Quaid-i-Azam University, Islamabad (Pakistan); Sanchez, A. [Departamento de Posgrado, CIIDET, AP 752, Queretaro, QRO 76000 (Mexico); Taj, S. [Center for Advanced Mathematics and Physics, National University of Sciences and Technology, H-12, Islamabad (Pakistan); ICRANet, Dipartimento di Fisica, Universita di Roma La Sapienza, I-00185 Roma (Italy)

2011-04-15T23:59:59.000Z

296

Electricity Costs  

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

Carbon Emissions Caps and the Impact of a Radical Change in Nuclear Electricity Costs journal International Journal of Energy Economics and Policy volume year month chapter...

297

Electric machine  

SciTech Connect

An interior permanent magnet electric machine is disclosed. The interior permanent magnet electric machine comprises a rotor comprising a plurality of radially placed magnets each having a proximal end and a distal end, wherein each magnet comprises a plurality of magnetic segments and at least one magnetic segment towards the distal end comprises a high resistivity magnetic material.

El-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Reddy, Patel Bhageerath (Madison, WI)

2012-07-17T23:59:59.000Z

298

POWER PLANT RELIABILITY-AVAILABILITY AND STATE REGULATION. VOLUME 7 OF THE FINAL REPORT ON HEALTH AND SAFETY IMPACTS OF NUCLEAR, GEOTHERMAL, AND FOSSIL-FUEL ELECTRIC GENERATION IN CALIFORNIA  

E-Print Network (OSTI)

OUTAGES COMPONENT NUCLEAR REACTOR General Primary CoolingAsh Disposal Trouble NUCLEAR REACTOR COMPONENT OUTAGE CAUSESconsisting of a Nuclear units use a reactor in which burner

Nero, A.V.

2010-01-01T23:59:59.000Z

299

Modeling and Computing Two-settlement Oligopolistic Equilibrium in a Congested Electricity Network  

E-Print Network (OSTI)

network where ?ows on transmission lines are constrained byGenerator outages, transmission line outages and demandnodes, and a set L of transmission lines. There is a set G

Yao, Jian; Adler, Ilan; Oren, Shmuel S

2006-01-01T23:59:59.000Z

300

Energy Loss of a Heavy Particle near 3D Charged Rotating Hairy Black Hole  

E-Print Network (OSTI)

In this paper we consider charged rotating black hole in 3 dimensions with an scalar charge and discuss about energy loss of heavy particle moving near the black hole horizon. We also study quasi-normal modes and find dispersion relations. We find that the effect of scalar charge and electric charge is increasing energy loss.

Jalil Naji

2014-01-17T23:59:59.000Z

Note: This page contains sample records for the topic "rotating electrical outages" 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

Short rotation Wood Crops Program  

DOE Green Energy (OSTI)

This report synthesizes the technical progress of research projects in the Short Rotation Woody Crops Program for the year ending September 30, 1989. The primary goal of this research program, sponsored by the US Department of Energy's Biofuels and Municipal Waste Technology Division, is the development of a viable technology for producing renewable feedstocks for conversion to biofuels. One of the more significant accomplishments was the documentation that short-rotation woody crops total delivered costs could be $40/Mg or less under optimistic but attainable conditions. By taking advantage of federal subsidies such as those offered under the Conservation Reserve Program, wood energy feedstock costs could be lower. Genetic improvement studies are broadening species performance within geographic regions and under less-than-optimum site conditions. Advances in physiological research are identifying key characteristics of species productivity and response to nutrient applications. Recent developments utilizing biotechnology have achieved success in cell and tissue culture, somaclonal variation, and gene-insertion studies. Productivity gains have been realized with advanced cultural studies of spacing, coppice, and mixed-species trials. 8 figs., 20 tabs.

Wright, L.L.; Ehrenshaft, A.R.

1990-08-01T23:59:59.000Z

302

Electric moped  

DOE Green Energy (OSTI)

Two electrically powered mopeds were designed and built. These vehicles offer single-person transportation which is convenient, quiet, low-cost, smooth, and pollution-free. The first moped has a 12 volt electrical system. The second has a 24 volt electrical system. They both have top speeds of about 20 miles per hour. They both use transistorized speed controls and deep-discharge, lead-acid batteries. These mopeds were put through a 750 mile test program. In this program, the 12 volt bike had an average range of nine miles. The 24 volt bike, with a smaller battery capacity, had an average range of six miles.

Ferschl, M.S.

1981-02-26T23:59:59.000Z

303

Contra-rotating homopolar motor-generator for energy storage and return  

DOE Patents (OSTI)

An apparatus for receiving electrical energy in amounts of the order of hundreds of megajoules, converting the electrical energy to mechanical energy for storage, and delivering the stored energy as electrical energy in times of the order of a second comprises a sequence of stacked electrically conducting cylindrical shells having a common axis. The conducting shells are free to rotate and are separated by stationary insulating cylindrical shells. Adjacent conducting shells are connected electrically by brushes at the edges and a radial magnetic field is caused to pass through the conductors. The apparatus permits the reversal in a plasma heating coil of electric currents of amplitudes up to 100,000 amperes in a time of the order of a second.

Kustom, Robert L. (Palos Heights, IL); Wehrle, Robert B. (Downers Grove, IL)

1978-01-01T23:59:59.000Z

304

Contained Modes In Mirrors With Sheared Rotation  

SciTech Connect

In mirrors with E B rotation, a fixed azimuthal perturbation in the lab frame can appear as a wave in the rotating frame. If the rotation frequency varies with radius, the plasma-frame wave frequency will also vary radially due to the Doppler shift. A wave that propagates in the high rotation plasma region might therefore be evanescent at the plasma edge. This can lead to radially localized Alfven eigenmodes with high azimuthal mode numbers. Contained Alfven modes are found both for peaked and non-peaked rotation profiles. These modes might be useful for alpha channeling or ion heating, as the high azimuthal wave number allows the plasma wave frequency in the rotating frame to exceed the ion cyclotron frequency. __________________________________________________

Abraham J. Fetterman and Nathaniel J. Fisch

2010-10-08T23:59:59.000Z

305

EIA - State Electricity Profiles  

U.S. Energy Information Administration (EIA)

Trade and Reliability; All Reports See all Electricity Reports State Electricity Profiles. ... Electric Power Industry Emissions Estimates, 1990 Through 2010:

306

Extended outages at several nuclear plants led to high outage ...  

U.S. Energy Information Administration (EIA)

Southern California Edison's San Onofre Nuclear ... and Progress's handling of the Crystal River repairs became an issue in the company's recent merger with ...

307

Identification of Severe Multiple Contingencies in Electric Power Systems  

E-Print Network (OSTI)

the fewest possible transmission line outages resulting in aa speci?ed number of transmission lines from service.order to incorporate transmission line failures. Our primary

Donde, Vaibhav; Lopez, Vanessa; Lesieutre, Bernard; Pinar, Ali; Yang, Chao; Meza, Juan

2008-01-01T23:59:59.000Z

308

Identification of Severe Multiple Contingencies in Electric Power Systems  

E-Print Network (OSTI)

the fewest possible transmission line outages resulting in aa speci?ed number of transmission lines from service.order to incorporate transmission line failures. Our primary

Donde, Vaibhav

2010-01-01T23:59:59.000Z

309

Wholesale electricity prices spike in Texas - Today in Energy - U ...  

U.S. Energy Information Administration (EIA)

Sales, revenue and prices, power plants, fuel ... starting in April of this year. ... included start-up costs in their bids to come back from outage ...

310

On the toroidal plasma rotations induced by lower hybrid waves  

Science Conference Proceedings (OSTI)

A theoretical model is developed to explain the plasma rotations induced by lower hybrid waves in Alcator C-Mod. In this model, torodial rotations are driven by the Lorentz force on the bulk-electron flow across flux surfaces, which is a response of the plasma to the resonant-electron flow across flux surfaces induced by the lower hybrid waves. The flow across flux surfaces of the resonant electrons and the bulk electrons are coupled through the radial electric field initiated by the resonant electrons, and the friction between ions and electrons transfers the toroidal momentum to ions from electrons. An improved quasilinear theory with gyrophase dependent distribution function is developed to calculate the perpendicular resonant-electron flow. Toroidal rotations are determined using a set of fluid equations for bulk electrons and ions, which are solved numerically by a finite-difference method. Numerical results agree well with the experimental observations in terms of flow profile and amplitude. The model explains the strong correlation between torodial flow and internal inductance observed experimentally, and predicts both counter-current and co-current flows, depending on the perpendicular wave vectors of the lower hybrid waves.

Guan Xiaoyin; Fisch, Nathaniel J. [Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States); Qin Hong [Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States); Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China); Liu Jian [Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)

2013-02-15T23:59:59.000Z

311

On the Toroidal Plasma Rotations Induced by Lower Hybrid Waves  

SciTech Connect

A theoretical model is developed to explain the plasma rotations induced by lower hybrid waves in Alcator C-Mod. In this model, torodial rotations are driven by the Lorentz force on the bulk electron flow across flux surfaces, which is a response of the plasma to the resonant-electron flow across flux surfaces induced by the lower hybrid waves. The flow across flux surfaces of the resonant electrons and the bulk electrons are coupled through the radial electric fi eld initiated by the resonant electrons, and the friction between ions and electrons transfers the toroidal momentum to ions from electrons. An improved quasilinear theory with gyrophase dependent distribution function is developed to calculate the perpendicular resonant-electron flow. Toroidal rotations are determined using a set of fluid equations for bulk electrons and ions, which are solved numerically by a fi nite- difference method. Numerical results agree well with the experimental observations in terms of flow pro file and amplitude. The model explains the strong correlation between torodial flow and internal inductance observed experimentally, and predicts both counter-current and co-current flows, depending on the perpendicular wave vectors of the lower hybrid waves. __________________________________________________

Xiaoyin Guan, Hong Qin, Jian Liu and Nathaniel J. Fisch

2012-11-14T23:59:59.000Z

312

Impact to New Jersey's Economy of the Loss of Electric Power in New Jersey's  

E-Print Network (OSTI)

.S., that the average number of outages a year has been increasing 9 percent a year, and the duration by 14 percent. They apply frameworks for each of these three types of losses to estimating the cost of an outage in the New.64 billion, not including health-related costs, for a single-day power outage. This estimate was at the lower

Wang, Hai

313

Rotating Plasma Finding is Key for ITER  

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

Plasma Finding is Key for ITER Rotating Plasma Finding is Key for ITER PlasmaTurbulenceCSChang.png Tokamak turbulence showing inward-propagating streamers from normalized...

314

Impurity ions in a rotating tokamak  

SciTech Connect

It is pointed out that the impurity ions in rotating toroidal plasmas tend to behave like trapped particles. That may explain the observed fact.

Yoshikawa, S.

1980-10-01T23:59:59.000Z

315

Hidden Rotational Symmetries in Magnetic Domain Patterns  

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

the large-scale pattern. Research reported by Su et al. shows how to address such esoteric questions, while specifically suggesting that hidden rotational symmetries may play...

316

SPARSE FARADAY ROTATION MEASURE SYNTHESIS  

Science Conference Proceedings (OSTI)

Faraday rotation measure synthesis is a method for analyzing multichannel polarized radio emissions, and it has emerged as an important tool in the study of Galactic and extragalactic magnetic fields. The method requires the recovery of the Faraday dispersion function from measurements restricted to limited wavelength ranges, which is an ill-conditioned deconvolution problem. Here, we discuss a recovery method that assumes a sparse approximation of the Faraday dispersion function in an overcomplete dictionary of functions. We discuss the general case when both thin and thick components are included in the model, and we present the implementation of a greedy deconvolution algorithm. We illustrate the method with several numerical simulations that emphasize the effect of the covered range and sampling resolution in the Faraday depth space, and the effect of noise on the observed data.

Andrecut, M.; Stil, J. M.; Taylor, A. R. [Institute for Space Imaging Science, Department of Physics and Astronomy, University of Calgary, Calgary, Alberta T2N 1N4 (Canada)

2012-02-15T23:59:59.000Z

317

California's electric power market faces challenges heading ...  

U.S. Energy Information Administration (EIA)

Biofuels: Ethanol & Biodiesel ... unit outages as the main contributor to a reserve margin of 15.1%just 0.1 percentage point above the target level for this region

318

Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1. Volume 5: Analysis of core damage frequency from seismic events for plant operational state 5 during a refueling outage  

SciTech Connect

In 1989 the US Nuclear Regulatory Commission (NRC) initiated an extensive program to examine carefully the potential risks during low-power and shutdown operations. The program included two parallel projects, one at Sandia National Laboratories studying a boiling water reactor (Grand Gulf), and the other at Brookhaven National Laboratory studying a pressurized water reactor (Surry Unit 1). Both the Sandia and Brookhaven projects have examined only accidents initiated by internal plant faults---so-called ``internal initiators.`` This project, which has explored the likelihood of seismic-initiated core damage accidents during refueling outage conditions, is complementary to the internal-initiator analyses at Brookhaven and Sandia. This report covers the seismic analysis at Grand Gulf. All of the many systems modeling assumptions, component non-seismic failure rates, and human effort rates that were used in the internal-initiator study at Grand Gulf have been adopted here, so that the results of the study can be as comparable as possible. Both the Sandia study and this study examine only one shutdown plant operating state (POS) at Grand Gulf, namely POS 5 representing cold shutdown during a refueling outage. This analysis has been limited to work analogous to a level-1 seismic PRA, in which estimates have been developed for the core-damage frequency from seismic events during POS 5. The results of the analysis are that the core-damage frequency for earthquake-initiated accidents during refueling outages in POS 5 is found to be quite low in absolute terms, less than 10{sup {minus}7}/year.

Budnitz, R.J. [Future Resources Associates, Inc., Berkeley, CA (United States); Davis, P.R. [PRD Consulting (United States); Ravindra, M.K.; Tong, W.H. [EQE International, Inc., Irvine, CA (United States)

1994-08-01T23:59:59.000Z

319

Electricity 2011  

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

Electricity > Soliciting comments on EIA-111 Electricity > Soliciting comments on EIA-111 EIA announces the proposal of Form EIA-111, Quarterly Electricity Imports and Exports Report Released: August 15, 2011 Background On August 11, 2011, a Federal Register Notice was published soliciting comments for the new EIA-111 survey form. The EIA-111, Quarterly Electricity Imports and Exports Report will replace the OE-781R, Monthly Electricity Imports and Exports Report. The OE-781R has been suspended and will be terminated upon the approval of the EIA-111. The OE-781R administered from July 2010 through May 2011, proved complex and confusing for the repondents. As a result, the EIA-111 was developed to more effectively and efficiently collect more accurate and meaningful data. The Paperwork Reduction Act (PRA) of 1995 requires that each Federal agency obtains approval from the Office of Management and Budget (OMB) before undertaking to collect information from ten or more persons, or continuing a collection for which the OMB approval and the OMB control number are about to expire. The approval process, which is popularly known as the "OMB clearance process," is extensive. It requires two Federal Register notices and a detailed application ("supporting statement") to OMB. The first Federal Register Notice was published on August 11, 2011. EIA is prepared to address the comments submitted by each individual.

320

Illinois Municipal Electric Agency - Electric Efficiency Program...  

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

Electric Agency - Electric Efficiency Program < Back Eligibility Agricultural Commercial Industrial Institutional Municipal Utility Nonprofit Schools Savings Category Home...

Note: This page contains sample records for the topic "rotating electrical outages" 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

Electrical Engineering (EE) is a diverse discipline encompassing computer and information systems, controls,  

E-Print Network (OSTI)

and multiply excited systems. Concepts in rotating machinery analysis. Direct energy conversion. Prerequisite70 electrical Electrical Engineering (EE) is a diverse discipline encompassing computer information processing. ProgrAmS AVAilAble · ElectricalEngineering Bachelor of Science 131 units · Computer

Rohs, Remo

322

Electrical Engineering (EE) is a diverse discipline encompassing computer and information systems, controls,  

E-Print Network (OSTI)

in singly and multiply excited systems. Concepts in rotating machinery analysis. Direct energy conversion70 electrical Electrical Engineering (EE) is a diverse discipline encompassing computer information processing. ProgrAmS AVAilAble · ElectricalEngineering Bachelor of Science 131 units · Computer

Rohs, Remo

323

Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1. Analysis of core damage frequency from internal events for plant operational state 5 during a refueling outage. Internal events appendices K to M  

Science Conference Proceedings (OSTI)

This report provides supporting documentation for various tasks associated with the performance of the probabilistic risk assessment for Plant Operational State 5 (approximately Cold Shutdown as defined by Grand Gulf Technical Specifications) during a refueling outage at Grand Gulf, Unit 1 as documented in Volume 2, Part 1 of NUREG/CR-6143. The report contains the following appendices: K - HEP Locator Files; L - Supporting Information for the Plant Damage State Analysis; M - Summary of Results from the Coarse Screening Analysis - Phase 1A.

Forester, J.; Yakle, J.; Walsh, B. [Science Applications International Corp., Albuquerque, NM (United States); Darby, J. [Science and Engineering Associates, Inc., Albuquerque, NM (United States); Whitehead, D.; Staple, B.; Brown, T. [Sandia National Labs., Albuquerque, NM (United States)

1994-07-01T23:59:59.000Z

324

Torques in atmospheres of rotating planets  

E-Print Network (OSTI)

Molecular motion in combination with planetary rotation and gravity causes a torque in gas when seen from a coordinate system fixed in the planet. The torque is caused by the difference in centrifugal forces when gas molecules are moving along or opposite to the planets rotation.

Jonsson, David

2010-01-01T23:59:59.000Z

325

Novel approach for rotation invariant texture recognition  

Science Conference Proceedings (OSTI)

In machine vision, rotation invariant feature extraction is one of the most challenging texture analysis tasks, because pattern orientation itself contributes substantially to extracted features. As a consequence, the prime objective of such techniques ... Keywords: Hu moments, moment invariants, moment masks, probabilistic neural network, rotation invariance, texture segmentation

Naeem Qaiser; Mutawarra Hussain; Nadeem Qaiser; Muhammad Iqbal

2007-07-01T23:59:59.000Z

326

A bio-inspired multi-agent system framework for real-time load management in all-electric ship power systems  

Science Conference Proceedings (OSTI)

All-electric ship power systems have limited generation capacity and finite rotating inertia compared with large power systems. Moreover, all-electric ship power systems include large portions of nonlinear loads and dynamic loads relative to the total ...

Xianyong Feng / Karen L. Butler-Purry

2012-01-01T23:59:59.000Z

327

Electricity Reliability  

E-Print Network (OSTI)

and reliability of the energy infrastructure, and facilitating recovery from disruptions to energy supply. MajorElectricity Delivery and Energy Reliability High Temperature Superconductivity (HTS) Visualization on the nation's energy delivery system Superconductors are important to meeting the nation's energy needs

328

Faraday rotation and sensitivity of (100) bismuth-substituted ferrite garnet films  

E-Print Network (OSTI)

We have investigated the Faraday rotation of in-plane magnetized bismuth-substituted ferrite garnet films grown by liquid phase epitaxy on (100) oriented gadolinium gallium garnet substrates. The Faraday spectra were measured for photon energies between 1.7- 2.6 eV. To interprete the spectra, we use a model based on two electric dipole transitions, one tetrahedral and one octahedral. Furthermore, the Faraday rotation sensitivity was measured at 2.3 eV, and found to be in good agreement with the theoretical predicitions. In particular, we find that the sensitivity increases linearly with the bismuth content and nonlinearly with the gallium content. 1 I.

L. E. Helseth; A. G. Solovyev; R. W. Hansen

2002-01-01T23:59:59.000Z

329

Pinpointing the cause of an outage for something as complex and interconnected as the high voltage transmission system is a ve  

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

Ellen P. Vancko Ellen P. Vancko evancko@nerc.com Electric System Update: Sunday August 17, 2003, 5:00 p.m. The electric transmission system is now operating reliably. All electric power transmission lines that were removed from service during the blackout on August 14, 2003, have been returned to service with one exception. The lines between Michigan and Ontario remain out of service due to operational security reasons; however, they are expected to be returned to service later this evening. Most of the electric generating units that were removed from service during the blackout have now been returned to service (the exact number of units that went out of service is not yet known). Twenty-one of these remain out of service. A number of these generating units are expected to return to service either

330

Tracking Rotational Diffusion of Colloidal Clusters  

E-Print Network (OSTI)

We describe a novel method of tracking the rotational motion of clusters of colloidal particles. Our method utilizes rigid body transfor- mations to determine the rotations of a cluster and extends conventional proven particle tracking techniques in a simple way, thus facilitating the study of rotational dynamics in systems containing or composed of colloidal clusters. We test our method by measuring dynamical properties of simulated Brownian clusters under conditions relevant to microscopy experiments. We then use the technique to track and describe the motions of a real colloidal cluster imaged with confocal microscopy.

Gary L. Hunter; Kazem V. Edmond; Mark T. Elsesser; Eric R. Weeks

2011-07-13T23:59:59.000Z

331

Rotation invarient simultaneous clustering and dictionary learning  

E-Print Network (OSTI)

In this paper, we present an approach that simultaneously clusters database members and learns dictionaries from the clusters. The method learns dictionaries in the Radon transform domain, while clustering in the image domain. The main feature of the proposed approach is that it provides rotation invariant clustering which is useful in Content Based Image Retrieval (CBIR). We demonstrate through experimental results that the proposed rotation invariant clustering provides better retrieval performance than the standard Gabor-based method that has similar objectives. Index Terms Radon transform, rotation invariance, clustering, dictionary learning, CBIR.

Yi-chen Chen; Challa S. Sastry; Vishal M. Patel; P. Jonathon Phillips

2012-01-01T23:59:59.000Z

332

Alpha Channeling in a Rotating Plasma  

E-Print Network (OSTI)

The wave-particle alpha-channeling effect is generalized to include rotating plasma. Specifically, radio frequency waves can resonate with alpha particles in a mirror machine with ExB rotation to diffuse the alpha particles along constrained paths in phase space. Of major interest is that the alpha-particle energy, in addition to amplifying the RF waves, can directly enhance the rotation energy which in turn provides additional plasma confinement in centrifugal fusion reactors. An ancillary benefit is the rapid removal of alpha particles, which increases the fusion reactivity.

Fetterman, Abraham J

2008-01-01T23:59:59.000Z

333

Hidden Rotational Symmetries in Magnetic Domain Patterns  

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

Hidden Rotational Symmetries in Hidden Rotational Symmetries in Magnetic Domain Patterns Hidden Rotational Symmetries in Magnetic Domain Patterns Print Wednesday, 27 June 2012 00:00 Magnetic thin films have complicated domain patterns that may or may not repeat with each cycle through a hysteresis loop. A magnetic thin film with perpendicular anisotropy, such as that used in computer hard drives, for example, commonly exhibits labyrinthine domain patterns. These patterns are disordered over a macroscopic length scale, and intuitively we do not expect to observe any symmetry in such systems. Scientists at the ALS, the University of Oregon, and the University of California, San Diego, have recently used coherent soft x-ray scattering with angular Fourier analysis to discover that the disordered domain patterns do, in fact, exhibit rotational symmetries, which can be as small as two-fold or as large as 30-fold. Their study of magnetic symmetries gives scientists a toolbox for discovering hidden symmetries in diverse material systems.

334

Baroclinic Instability of a Rotating Hadley Cell  

Science Conference Proceedings (OSTI)

The stability of a thin fluid layer between two rotating plates which are subjected to a horizontal temperature gradient is studied. First, the solution for the stationary basic state is obtained in a closed form. This solution identifies Ekman ...

Basil N. Antar; William W. Fowlis

1981-10-01T23:59:59.000Z

335

On the Use of Rotating Hydraulic Models  

Science Conference Proceedings (OSTI)

Two problems regarding the use of rotating hydraulic channel flow models are addressed. The first concerns the difficulties encountered when trying to identify the potential depth for a flow of uniform (but nonzero) potential vorticity in a ...

K. M. Borens; L. J. Pratt

1994-01-01T23:59:59.000Z

336

Consider Steam Turbine Drives for Rotating Equipment  

SciTech Connect

This revised ITP tip sheet on steam turbine drives for rotating equipment provides how-to advice for improving the system using low-cost, proven practices and technologies.

2006-01-01T23:59:59.000Z

337

ROTATIONAL DOPPLER BEAMING IN ECLIPSING BINARIES  

SciTech Connect

In eclipsing binaries the stellar rotation of the two components will cause a rotational Doppler beaming during eclipse ingress and egress when only part of the eclipsed component is covered. For eclipsing binaries with fast spinning components this photometric analog of the well-known spectroscopic Rossiter-McLaughlin effect can exceed the strength of the orbital effect. Example light curves are shown for a detached double white dwarf binary, a massive O-star binary and a transiting exoplanet case, similar to WASP-33b. Inclusion of the rotational Doppler beaming in eclipsing systems is a prerequisite for deriving the correct stellar parameters from fitting high-quality photometric light curves and can be used to determine stellar obliquities as well as, e.g., an independent measure of the rotational velocity in those systems that may be expected to be fully synchronized.

Groot, Paul J., E-mail: pgroot@astro.ru.nl [Cahill Center for Astronomy and Astrophysics, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125 (United States)

2012-01-20T23:59:59.000Z

338

Turbulent Channel Flows on a Rotating Earth  

Science Conference Proceedings (OSTI)

This paper deals with flow in a rectilinear channel on a rotating earth. The flow is directed perpendicular to the background planetary vorticity; both an analytical theory and numerical simulations are employed. The analytical approach assumes ...

Robert A. Handler; Richard P. Mied; Gloria J. Lindemann; Thomas E. Evans

2009-04-01T23:59:59.000Z

339

A Numerical Study of a Rotating Downburst  

Science Conference Proceedings (OSTI)

Previous studies have revealed that convective storms often contain intense small-scale downdrafts, termed downbursts, that are a significant hazard to aviation. These downbursts sometimes possess strong rotation about their vertical axis in ...

David B. Parsons; Morris L. Weisman

1993-08-01T23:59:59.000Z

340

Flow Properties in Rotating, Stratified Hydraulics  

Science Conference Proceedings (OSTI)

This paper discusses three distinct features of rotating, stratified hydraulics, using a reduced-gravity configuration. First, a new upstream condition is derived corresponding to a wide, almost motionless basin, and this is applied to flow ...

Peter D. Killworth

1992-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotating electrical outages" 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

Can (Electric-Magnetic) Duality Be Gauged?  

E-Print Network (OSTI)

There exists a formulation of the Maxwell theory in terms of two vector potentials, one electric and one magnetic. The action is then manifestly invariant under electric-magnetic duality transformations, which are rotations in the two-dimensional internal space of the two potentials, and local. We ask the question: can duality be gauged? The only known and battled-tested method of accomplishing the gauging is the Noether procedure. In its decanted form, it amounts to turn on the coupling by deforming the abelian gauge group of the free theory, out of whose curvatures the action is built, into a non-abelian group which becomes the gauge group of the resulting theory. In this article, we show that the method cannot be successfully implemented for electric-magnetic duality. We thus conclude that, unless a radically new idea is introduced, electric-magnetic duality cannot be gauged. The implication of this result for supergravity is briefly discussed.

Claudio Bunster; Marc Henneaux

2010-11-25T23:59:59.000Z

342

Electricity Transmission, A Primer  

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

the electric power system, 2) gives electricity customers flexibility to diversify the mix of fuels that produces their electricity by giving them access to power plants, 3)...

343

Retail Electricity Competition  

E-Print Network (OSTI)

Reliability and Competitive Electricity Markets mimeo, MITCSEM WP 130 Retail Electricity Competition * Paul Joskow andwww.ucei.org Retail Electricity Competition ? Paul Joskow

Joskow, Paul; Tirole, Jean

2004-01-01T23:59:59.000Z

344

Capacity Markets for Electricity  

E-Print Network (OSTI)

Designing Markets for Electricity. Wiley IEEE Press. [25]in the England and Wales Electricity Market, Power WorkingFelder (1996), Should Electricity Markets Have a Capacity

Creti, Anna; Fabra, Natalia

2004-01-01T23:59:59.000Z

345

Designing Electricity Auctions  

E-Print Network (OSTI)

market performance in electricity auctions, it appears thatMcSorely (2001) Regulating Electricity Markets: Experiencethe United Kingdom, The Electricity Journal, December, 81-

Fabra, Natalia; von der Fehr, Nils-Henrik; Harbord, David

2004-01-01T23:59:59.000Z

346

Designing Electricity Auctions  

E-Print Network (OSTI)

J. (2002) Why Did Electricity Prices Fall in England &Why Did British Electricity Prices Fall After 1998? ,The Fall in British Electricity Prices: Market Rules, Market

Fabra, Natalia; von der Fehr, Nils-Henrik; Harbord, David

2004-01-01T23:59:59.000Z

347

Electric Power Annual  

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

F. Coal: Consumption for Electricity Generation and Useful Thermal Output, by Sector, 2001 - 2011 (Billion Btus) Electric Power Sector Period Total (all sectors) Electric Utilities...

348

High Temperatures & Electricity Demand  

E-Print Network (OSTI)

High Temperatures & Electricity Demand An Assessment of Supply Adequacy in California Trends.......................................................................................................1 HIGH TEMPERATURES AND ELECTRICITY DEMAND.....................................................................................................................7 SECTION I: HIGH TEMPERATURES AND ELECTRICITY DEMAND ..........................9 BACKGROUND

349

Spin Rotation of Formalism for Spin Tracking  

SciTech Connect

The problem of which coefficients are adequate to correctly represent the spin rotation in vector spin tracking for polarized proton and deuteron beams in synchrotrons is here re-examined in the light of recent discussions. The main aim of this note is to show where some previous erroneous results originated and how to code spin rotation in a tracking code. Some analysis of a recent experiment is presented that confirm the correctness of the assumptions.

Luccio,A.

2008-02-01T23:59:59.000Z

350

Central Hudson Gas & Electric (Electric) - Commercial Lighting...  

Open Energy Info (EERE)

icon Twitter icon Central Hudson Gas & Electric (Electric) - Commercial Lighting Rebate Program (New York) This is the approved revision of this page, as well as...

351

Hybrid Electric and Pure Electric vehicle testing  

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

Hybrid Electric and Pure Electric Vehicle Testing (Advanced Vehicle Testing Activity) Jim Francfort Discovery Center of Idaho - September 2005 INLCON-05-00693 HEV & EV Testing...

352

NREL: Electricity Integration Research - Electricity, Resources...  

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

Electricity, Resources, and Building Systems Integration Center NREL's Electricity, Resources, and Building Systems Integration Center brings together diverse groups of experts...

353

Electrical receptacle  

DOE Patents (OSTI)

The invention is a receptacle for a three prong electrical plug which has either a tubular or U-shaped grounding prong. The inventive receptacle has a grounding prong socket which is sufficiently spacious to prevent the socket from significantly stretching when a larger, U-shaped grounding prong is inserted into the socket, and having two ridges to allow a snug fit when a smaller tubular shape grounding prong is inserted into the socket. The two ridges are made to prevent the socket from expanding when either the U-shaped grounding prong or the tubular grounding prong is inserted.

Leong, R.

1993-06-22T23:59:59.000Z

354

Electrical receptacle  

DOE Patents (OSTI)

The invention is a receptacle for a three prong electrical plug which has either a tubular or U-shaped grounding prong. The inventive receptacle has a grounding prong socket which is sufficiently spacious to prevent the socket from significantly stretching when a larger, U-shaped grounding prong is inserted into the socket, and having two ridges to allow a snug fit when a smaller tubular shape grounding prong is inserted into the socket. The two ridges are made to prevent the socket from expanding when either the U-shaped grounding prong or the tubular grounding prong is inserted.

Leong, R.

1991-12-31T23:59:59.000Z

355

Electrical receptacle  

DOE Patents (OSTI)

The invention is a receptacle for a three prong electrical plug which has either a tubular or U-shaped grounding prong. The inventive receptacle has a grounding prong socket which is sufficiently spacious to prevent the socket from significantly stretching when a larger, U-shaped grounding prong is inserted into the socket, and having two ridges to allow a snug fit when a smaller tubular shape grounding prong is inserted into the socket. The two ridges are made to prevent the socket from expanding when either the U-shaped grounding prong or the tubular grounding prong is inserted.

Leong, Robert (Dublin, CA)

1993-01-01T23:59:59.000Z

356

Electrical receptacle  

DOE Patents (OSTI)

The invention is a receptacle for a three prong electrical plug which has either a tubular or U-shaped grounding prong. The inventive receptacle has a grounding prong socket which is sufficiently spacious to prevent the socket from significantly stretching when a larger, U-shaped grounding prong is inserted into the socket, and having two ridges to allow a snug fit when a smaller tubular shape grounding prong is inserted into the socket. The two ridges are made to prevent the socket from expanding when either the U-shaped grounding prong or the tubular grounding prong is inserted.

Leong, R.

1991-01-01T23:59:59.000Z

357

MASS TRANSFER TO ROTATING DISKS AND ROTATING RINGS IN LAMINAR, TRANSITION, AND FULLY DEVELOPED TURBULENT FLOW  

SciTech Connect

Experimental data and theoretical calculations are presented for the mass-transfer rate to rotating disks and rotating rings when laminar, transition, and fully developed turbulent flow exist upon different portions of the surface. Good agreement of data and the model is obtained for rotating disks and relatively thick rotating rings. Results of the calculations for thin rings generally exceed the experimental data measured in transition and turbulent flow. A y{sup +{sup 3}} form for the eddy diffusivity is used to fit the data. No improvement is noticed with a form involving both y{sup +{sup 3}} and y{sup +{sup 3}}.

Law Jr., C.G.; Pierini, P.; Newman, J.

1980-07-01T23:59:59.000Z

358

MHK Technologies/Current Electric Generator | Open Energy Information  

Open Energy Info (EERE)

Generator Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Current Electric Generator.jpg Technology Profile Primary Organization Current Electric Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The Current Electric Generator will create electricity in three different processes simultaniously by harnessing the motion of water current to rotate the generator Two forms of magnetic induction and solar cells on the outer housing will produce electricity very efficiently The generators will be wired up together in large fields on open waterways sumerged from harm The electricity will be sent back to mainland via an underwater wire for consumption The Current Electric Generator is designed with the environment in mind and will primarilly be constructed from recycled materials cutting emmisions cost

359

Electric Resistance Heating  

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

Electric resistance heat can be supplied by centralized forced-air electric furnaces or by heaters in each room. Electric resistance heating converts nearly all of the energy in the electricity to...

360

Energy Basics: Electric Vehicles  

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

Photo of an electric bus driving up a hill. Electricity can be used as a transportation fuel to power battery electric vehicles (EVs). EVs store electricity in an energy storage...

Note: This page contains sample records for the topic "rotating electrical outages" 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

Suppressant: Electric Fields  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. Suppressant:Electric Fields. Fire Extinguishment of Pool Flames by Means of a DC electric Field.. ...

2011-11-04T23:59:59.000Z

362

Concrete Electrical Conductivity Test  

Science Conference Proceedings (OSTI)

Concrete Electrical Conductivity Test. Description/Summary: ... Details. Type of software: Virtual concrete electrical conductivity test. Authors: ...

2013-06-11T23:59:59.000Z

363

EIA - State Electricity Profiles  

U.S. Energy Information Administration (EIA)

Greenhouse gas data, voluntary report- ing, electric power plant emissions. Highlights ... Generation and thermal output; Electric power plants generating capacity;

364

Electric Power Annual  

U.S. Energy Information Administration (EIA)

Electric Power Sector ; Period Total (all sectors) Electric Utilities Independent Power Producers Commercial Sector Industrial Sector; Annual Totals: ...

365

Electricity Market Module  

Reports and Publications (EIA)

Documents the Electricity Market Module as it was used for the Annual Energy Outlook 2013. The Electricity Market Module (EMM) is the electricity supply component of the National Energy Modeling System (NEMS). The EMM represents the generation, transmission, and pricing of electricity. It consists of four submodules: the Electricity Capacity Planning (ECP) Submodule, the Electricity Fuel Dispatch (EFD) Submodule, the Electricity Finance and Pricing (EFP) Submodule, and the Electricity Load and Demand (ELD) Submodule.

Jeff Jones

2013-07-24T23:59:59.000Z

366

Electric Power Metrology Portal  

Science Conference Proceedings (OSTI)

... Electric Power Metrology and the Smart Grid Our country's way of life depends on the electric power distribution system. ...

2012-12-26T23:59:59.000Z

367

California Energy Commission DRAFT STAFF REPORT  

E-Print Network (OSTI)

-time monitoring, analysis, and prediction of electrical outages. Technology for energy storage and storage

368

Direct participation of electrical loads in the California independent system operator markets during the Summer of 2000  

SciTech Connect

California's restructured electricity markets opened on 1 April 1998. The former investor-owned utilities were functionally divided into generation, transmission, and distribution activities, all of their gas-fired generating capacity was divested, and the retail market was opened to competition. To ensure that small customers shared in the expected benefit of lower prices, the enabling legislation mandated a 10% rate cut for all customers, which was implemented in a simplistic way that fossilized 1996 tariff structures. Rising fuel and environmental compliance costs, together with a reduced ability to import electricity, numerous plant outages, and exercise of market power by generators drove up wholesale electricity prices steeply in 2000, while retail tariffs remained unchanged. One of the distribution/supply companies entered bankruptcy in April 2001, and another was insolvent. During this period, two sets of interruptible load programs were in place, longstanding ones organized as special tariffs by the distribution/supply companies and hastily established ones run directly by the California Independent System Operator (CAISO). The distribution/supply company programs were effective at reducing load during the summer of 2000, but because of the high frequency of outages required by a system on the brink of failure, customer response declined and many left the tariff. The CAISO programs failed to attract enough participation to make a significant difference to the California supply demand imbalance. The poor performance of direct load participation in California's markets reinforces the argument for accurate pricing of electricity as a stimulus to energy efficiency investment and as a constraint on market volatility.

Marnay, Chris; Hamachi, Kristina S.; Khavkin, Mark; Siddiqui, Afzal S.

2001-04-01T23:59:59.000Z

369

Electric utility capacity expansion and energy production models for energy policy analysis  

DOE Green Energy (OSTI)

This report describes electric utility capacity expansion and energy production models developed for energy policy analysis. The models use the same principles (life cycle cost minimization, least operating cost dispatching, and incorporation of outages and reserve margin) as comprehensive utility capacity planning tools, but are faster and simpler. The models were not designed for detailed utility capacity planning, but they can be used to accurately project trends on a regional level. Because they use the same principles as comprehensive utility capacity expansion planning tools, the models are more realistic than utility modules used in present policy analysis tools. They can be used to help forecast the effects energy policy options will have on future utility power generation capacity expansion trends and to help formulate a sound national energy strategy. The models make renewable energy source competition realistic by giving proper value to intermittent renewable and energy storage technologies, and by competing renewables against each other as well as against conventional technologies.

Aronson, E.; Edenburn, M.

1997-08-01T23:59:59.000Z

370

Electrical Safety  

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

NOT MEASUREMENT NOT MEASUREMENT SENSITIVE DOE HANDBOOK ELECTRICAL SAFETY DOE-HDBK-1092-2013 July 2013 Superseding DOE-HDBK-1092-2004 December 2004 U.S. Department of Energy AREA SAFT Washington, D.C.20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. DOE-HDBK-1092-2013 Available on the Department of Energy Technical Standards Program Web site at http://www.hss.doe.gov/nuclearsafety/techstds/ ii DOE-HDBK-1092-2013 FOREWORD 1. This Department of Energy (DOE) Handbook is approved for use by the Office of Health, Safety and Security and is available to all DOE components and their contractors. 2. Specific comments (recommendations, additions, deletions, and any pertinent data) to enhance this document should be sent to: Patrick Tran

371

Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1: Analysis of core damage frequency from internal events for Plant Operational State 5 during a refueling outage. Volume 2, Part 3: Internal Events Appendices I and J  

SciTech Connect

This report provides supporting documentation for various tasks associated with the performance of the probablistic risk assessment for Plant Operational State 5 during a refueling outage at Grand Gulf, Unit 1 as documented in Volume 2, Part 1 of NUREG/CR-6143.

Yakle, J. [Science Applications International Corp., Albuquerque, NM (United States); Darby, J. [Science and Engineering Associates, Inc., Albuquerque, NM (United States); Whitehead, D.; Staple, B. [Sandia National Labs., Albuquerque, NM (United States)

1994-06-01T23:59:59.000Z

372

DOE FEMP/U. S. Forest Service, Bureau of Land Management Collaborative...  

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

service voltage * Number of service drops * No. of electric meters * Distance to closest substation * Power Quality problems? * Momentary Power Outages? * Sustained Power Outages?...

373

Position, rotation, and intensity invariant recognizing method  

DOE Patents (OSTI)

A method for recognizing the presence of a particular target in a field of view which is target position, rotation, and intensity invariant includes the preparing of a target-specific invariant filter from a combination of all eigen-modes of a pattern of the particular target. Coherent radiation from the field of view is then imaged into an optical correlator in which the invariant filter is located. The invariant filter is rotated in the frequency plane of the optical correlator in order to produce a constant-amplitude rotational response in a correlation output plane when the particular target is present in the field of view. Any constant response is thus detected in the output plane to determine whether a particular target is present in the field of view. Preferably, a temporal pattern is imaged in the output plane with a optical detector having a plurality of pixels and a correlation coefficient for each pixel is determined by accumulating the intensity and intensity-square of each pixel. The orbiting of the constant response caused by the filter rotation is also preferably eliminated either by the use of two orthogonal mirrors pivoted correspondingly to the rotation of the filter or the attaching of a refracting wedge to the filter to remove the offset angle. Detection is preferably performed of the temporal pattern in the output plane at a plurality of different angles with angular separation sufficient to decorrelate successive frames. 1 fig.

Ochoa, E.; Schils, G.F.; Sweeney, D.W.

1987-09-15T23:59:59.000Z

374

Response to 'Comment on 'Three-dimensional numerical investigation of electron transport with rotating spoke in a cylindrical anode layer Hall plasma accelerator''[Phys. Plasmas 20, 014701 (2013)  

SciTech Connect

The numerical simulation described in our paper [D. L. Tang et al., Phys. Plasmas 19, 073519 (2012)] shows a rotating dense plasma structure, which is the critical characteristic of the rotating spoke. The simulated rotating spoke has a frequency of 12.5 MHz with a rotational speed of {approx}1.0 Multiplication-Sign 10{sup 6} m/s on the surface of the anode. Accompanied by the almost uniform azimuthal ion distribution, the non-axisymmetric electron distribution introduces two azimuthal electric fields with opposite directions. The azimuthal electric fields have the same rotational frequency and speed together with the rotating spoke. The azimuthal electric fields excite the axial electron drift upstream and downstream due to the additional E{sub {theta}} x B field and then the axial shear flow is generated. The axial local charge separation induced by the axial shear electron flow may be compensated by the azimuthal electron transport, finally resulting in the azimuthal electric field rotation and electron transport with the rotating spoke.

Tang, D. L.; Qiu, X. M. [Southwestern Institute of Physics, Chengdu 610041 (China); Geng, S. F. [Southwestern Institute of Physics, Chengdu 610041 (China); Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon (Hong Kong); Chu, Paul K. [Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon (Hong Kong)

2013-01-15T23:59:59.000Z

375

Captured key electrical safety lockout system  

DOE Patents (OSTI)

A safety lockout apparatus for an electrical circuit includes an electrical switch, a key, a lock and a blocking mechanism. The electrical switch is movable between an ON position at which the electrical circuit is energized and an OFF position at which the electrical circuit is deactivated. The lock is adapted to receive the key and is rotatable among a plurality of positions by the key. The key is only insertable and removable when the lock is at a preselected position. The lock is maintained in the preselected position when the key is removed from the lock. The blocking mechanism physically maintains the switch in its OFF position when the key is removed from the lock. The blocking mechanism preferably includes a member driven by the lock between a first position at which the electrical switch is movable between its ON and OFF positions and a second position at which the member physically maintains the electrical switch in its OFF position. Advantageously, the driven member's second position corresponds to the preselected position at which the key can be removed from and inserted into the lock.

Darimont, Daniel E. (Aurora, IL)

1995-01-01T23:59:59.000Z

376

Heart - Shaped Nuclei: Condensation of Rotational Aligned Octupole Phonons  

E-Print Network (OSTI)

The strong octupole correlations in the mass region $A\\approx 226$ are interpreted as rotation-induced condensation of octupole phonons having their angular momentum aligned with the rotational axis. Discrete phonon energy and parity conservation generate oscillations of the energy difference between the lowest rotational bands with positive and negative parity. Anharmonicities tend to synchronize the the rotation of the condensate and the quadrupole shape of the nucleus forming a rotating heart shape.

S. Frauendorf

2007-09-03T23:59:59.000Z

377

Automating Natural Disaster Impact Analysis: An Open Resource to Visually Estimate a Hurricane s Impact on the Electric Grid  

SciTech Connect

An ORNL team working on the Energy Awareness and Resiliency Standardized Services (EARSS) project developed a fully automated procedure to take wind speed and location estimates provided by hurricane forecasters and provide a geospatial estimate on the impact to the electric grid in terms of outage areas and projected duration of outages. Hurricane Sandy was one of the worst US storms ever, with reported injuries and deaths, millions of people without power for several days, and billions of dollars in economic impact. Hurricane advisories were released for Sandy from October 22 through 31, 2012. The fact that the geoprocessing was automated was significant there were 64 advisories for Sandy. Manual analysis typically takes about one hour for each advisory. During a storm event, advisories are released every two to three hours around the clock, and an analyst capable of performing the manual analysis has other tasks they would like to focus on. Initial predictions of a big impact and landfall usually occur three days in advance, so time is of the essence to prepare for utility repair. Automated processing developed at ORNL allowed this analysis to be completed and made publicly available within minutes of each new advisory being released.

Barker, Alan M [ORNL; Freer, Eva B [ORNL; Omitaomu, Olufemi A [ORNL; Fernandez, Steven J [ORNL; Chinthavali, Supriya [ORNL; Kodysh, Jeffrey B [ORNL

2013-01-01T23:59:59.000Z

378

Hidden Rotational Symmetries in Magnetic Domain Patterns  

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

Hidden Rotational Symmetries in Magnetic Domain Patterns Print Hidden Rotational Symmetries in Magnetic Domain Patterns Print Magnetic thin films have complicated domain patterns that may or may not repeat with each cycle through a hysteresis loop. A magnetic thin film with perpendicular anisotropy, such as that used in computer hard drives, for example, commonly exhibits labyrinthine domain patterns. These patterns are disordered over a macroscopic length scale, and intuitively we do not expect to observe any symmetry in such systems. Scientists at the ALS, the University of Oregon, and the University of California, San Diego, have recently used coherent soft x-ray scattering with angular Fourier analysis to discover that the disordered domain patterns do, in fact, exhibit rotational symmetries, which can be as small as two-fold or as large as 30-fold. Their study of magnetic symmetries gives scientists a toolbox for discovering hidden symmetries in diverse material systems.

379

Position, rotation, and intensity invariant recognizing method  

SciTech Connect

A method for recognizing the presence of a particular target in a field of view which is target position, rotation, and intensity invariant includes the preparing of a target-specific invariant filter from a combination of all eigen-modes of a pattern of the particular target. Coherent radiation from the field of view is then imaged into an optical correlator in which the invariant filter is located. The invariant filter is rotated in the frequency plane of the optical correlator in order to produce a constant-amplitude rotational response in a correlation output plane when the particular target is present in the field of view. Any constant response is thus detected in the output The U.S. Government has rights in this invention pursuant to Contract No. DE-AC04-76DP00789 between the U.S. Department of Energy and AT&T Technologies, Inc.

Ochoa, Ellen (Pleasanton, CA); Schils, George F. (San Ramon, CA); Sweeney, Donald W. (Alamo, CA)

1989-01-01T23:59:59.000Z

380

Rotating preventers; Technology for better well control  

Science Conference Proceedings (OSTI)

This paper reports that recent changes in the oil and gas industry and ongoing developments in horizontal and underbalanced drilling necessitated development of a better rotating head. A new device called the rotating blowout preventer (RBOP) was developed by Seal-Tech. It is designed to replace the conventional rotating control head on top of BOP stacks and allows drilling operations to continue even on live (underbalanced) wells. Its low wear characteristics and high working pressure (1,500 psi) allow drilling rig crews to drill safely in slightly underbalanced conditions or handle severe well control problems during the time required to actuate other BOPs in the stack. Drilling with a RBOP allows wellbores to be completely closed in tat the drill floor rather than open as with conventional BOPs.

Tangedahl, M.J.; Stone, C.R. (Signa Engineering Corp. (United States))

1992-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotating electrical outages" 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

Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits  

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

Docket EO-05-01: Pursuant to the United States Department of Energy ("DOE") Order No. 202-05-3, issued December 20, 2005 ("DOE Potomac River Order") Pepco hereby files this revised notice of the...

382

Superconductivity for Electric Systems Program Review LANL Contributions to GE HTS Generator  

E-Print Network (OSTI)

-section · Develop a heat generation profile => thermal analysis #12;Superconductivity for Electric Systems Program analysis of the coolant path ­ Investigated affect of rotation on heat load · Completed initial simulationsSuperconductivity for Electric Systems Program Review LANL Contributions to GE HTS Generator

383

Rapidly Rotating Suns and Active Nests of Convection  

E-Print Network (OSTI)

In the solar convection zone, rotation couples with intensely turbulent convection to drive a strong differential rotation and achieve complex magnetic dynamo action. Our sun must have rotated more rapidly in its past, as is suggested by observations of many rapidly rotating young solar-type stars. Here we explore the effects of more rapid rotation on the global-scale patterns of convection in such stars and the flows of differential rotation and meridional circulation which are self-consistently established. The convection in these systems is richly time dependent and in our most rapidly rotating suns a striking pattern of localized convection emerges. Convection near the equator in these systems is dominated by one or two nests in longitude of locally enhanced convection, with quiescent streaming flow in between at the highest rotation rates. These active nests of convection maintain a strong differential rotation despite their small size. The structure of differential rotation is similar in all of our more rapidly rotating suns, with fast equators and slower poles. We find that the total shear in differential rotation Delta Omega grows with more rapid rotation while the relative shear Delta Omega/Omega_0 decreases. In contrast, at more rapid rotation the meridional circulations decrease in energy and peak velocities and break into multiple cells of circulation in both radius and latitude.

Benjamin P. Brown; Matthew K. Browning; Allan Sacha Brun; Mark S. Miesch; Juri Toomre

2008-08-12T23:59:59.000Z

384

THE ROTATIONAL SPECTRUM OF HCl{sup +}  

SciTech Connect

The rotational spectrum of the radical ion HCl{sup +} has been detected at high resolution in the laboratory, confirming the identification reported in the accompanying Letter by De Luca et al., in diffuse clouds toward W31C and W49N. Three rotational transitions, one in the ground-state {sup 2}{Pi}{sub 3/2} ladder and two in the {sup 2}{Pi}{sub 1/2} ladder (643 cm{sup -1} above ground), were observed in a microwave discharge of He and HCl. Well-resolved chlorine hyperfine structure and {Lambda}-doubling, and the detection of lines of H{sup 37}Cl{sup +} at precisely the expected isotopic shift, provide conclusive evidence for the laboratory identification. Detection of rotational transitions in the {sup 2}{Pi}{sub 1/2} ladder of HCl{sup +} for the first time allows an experimental determination of the individual hyperfine coupling constants of chlorine and yields a precise value of eQq{sub 2}. The spectroscopic constants obtained by fitting a Hamiltonian simultaneously to our data and more than 8000 optical transitions are so precise that they allow us to calculate the frequencies of the {sup 2}{Pi}{sub 3/2} J = 5/2 - 3/2 transition observed in space to within 0.2 km s{sup -1}, and indeed, those of the strongest rotational transitions below 7.5 THz, to better than 1 km s{sup -1}.

Gupta, H.; Drouin, B. J.; Pearson, J. C., E-mail: Harshal.Gupta@jpl.nasa.gov [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)

2012-06-01T23:59:59.000Z

385

Internal Rotation, Mixing and Lithium Abundances  

E-Print Network (OSTI)

Lithium is an excellent tracer of mixing in stars as it is destroyed (by nuclear reactions) at a temperature around $\\sim 2.5\\times 10^6$ K. The lithium destruction zone is typically located in the radiative region of a star. If the radiative regions are stable, the observed surface value of lithium should remain constant with time. However, comparison of the meteoritic and photospheric Li abundances in the Sun indicate that the surface abundance of Li in the Sun has been depleted by more than two orders of magnitude. This is not predicted by solar models and is a long standing problem. Observations of Li in open clusters indicate that Li depletion is occurring on the main sequence. Furthermore, there is now compelling observational evidence that a spread of lithium abundances is present in nearly identical stars. This suggests that some transport process is occurring in stellar radiative regions. Helioseismic inversions support this conclusion, for they suggest that standard solar models need to be modified below the base of the convection zone. There are a number of possible theoretical explanations for this transport process. The relation between Li abundances, rotation rates and the presence of a tidally locked companion along with the observed internal rotation in the Sun indicate that the mixing is most likely induced by rotation. The current status of non-standard (particularly rotational) stellar models which attempt to account for the lithium observations are reviewed.

Brian Chaboyer

1998-03-10T23:59:59.000Z

386

Rotatable superconducting cyclotron adapted for medical use  

DOE Patents (OSTI)

A superconducting cyclotron (10) rotatable on a support structure (11) in an arc of about 180.degree. around a pivot axis (A--A) and particularly adapted for medical use is described. The rotatable support structure (13, 15) is balanced by being counterweighted (14) so as to allow rotation of the cyclotron and a beam (12), such as a subparticle (neutron) or atomic particle beam, from the cyclotron in the arc around a patient. Flexible hose (25) is moveably attached to the support structure for providing a liquified gas which is supercooled to near 0.degree. K. to an inlet means (122) to a chamber (105) around superconducting coils (101, 102). The liquid (34) level in the cyclotron is maintained approximately half full so that rotation of the support structure and cyclotron through the 180.degree. can be accomplished without spilling the liquid from the cyclotron. With the coils vertically oriented, each turn of the winding is approximately half immersed in liquid (34) and half exposed to cold gas and adequate cooling to maintain superconducting temperatures in the section of coil above the liquid level is provided by the combination of cold gas/vapor and by the conductive flow of heat along each turn of the winding from the half above the liquid to the half below.

Blosser, Henry G. (East Lansing, MI); Johnson, David A. (Williamston, MI); Riedel, Jack (East Lansing, MI); Burleigh, Richard J. (Berkeley, CA)

1985-01-01T23:59:59.000Z

387

Hydromagnetic Instability in Differentially Rotating Flows  

E-Print Network (OSTI)

We study the stability of a compressible differentially rotating flows in the presence of the magnetic field, and we show that the compressibility profoundly alters the previous results for a magnetized incompressible flow. The necessary condition of newly found instability can be easily satisfied in various flows in laboratory and astrophysical conditions and reads $B_{s} B_{\\phi} \\Omega' \

Bonanno, A

2006-01-01T23:59:59.000Z

388

Convective heat transfer in rotating, circular channels  

E-Print Network (OSTI)

Nusselt number values for flow in a rotating reference frame are obtained through computational fluid dynamic (CFD) analysis for Rossby numbers Ro ~1-4 and Reynolds numbers Re ~1,000-2,000. The heat-transfer model is first ...

Hogan, Brenna Elizabeth

2012-01-01T23:59:59.000Z

389

Rotating electrical machines. Part 2: Methods for determining losses and efficiency of rotating electrical machinery from tests (excluding machines for traction vehicles)  

E-Print Network (OSTI)

Applies to d.c. machines and to a.c. synchronous and induction machines. The principles can be applied to other types of machines such as rotary converters, a.c. commutator motors and single-phase induction motors for which other methods of determining losses are used.

International Electrotechnical Commission. Geneva

1972-01-01T23:59:59.000Z

390

Electrical Quantities Programs/Projects in Quantum Electrical ...  

Science Conference Proceedings (OSTI)

Electrical Quantities Programs/Projects in Quantum Electrical Metrology. Electric Power Metrology and the Smart Grid. Contact. ...

2011-10-03T23:59:59.000Z

391

Electrical Equipment Inspection Program Electrical Safety  

E-Print Network (OSTI)

for Electrical Safety" (DOE )-HDBK-1092-2004 Title 29, Code of Federal Regulations, "Labor" , Chapter 17

Wechsler, Risa H.

392

Asymmetric error field interaction with rotating conducting walls  

Science Conference Proceedings (OSTI)

The interaction of error fields with a system of differentially rotating conducting walls is studied analytically and compared to experimental data. Wall rotation causes eddy currents to persist indefinitely, attenuating and rotating the original error field. Superposition of error fields from external coils and plasma currents are found to break the symmetry in wall rotation direction. The vacuum and plasma eigenmodes are modified by wall rotation, with the error field penetration time decreased and the kink instability stabilized, respectively. Wall rotation is also predicted to reduce error field amplification by the marginally stable plasma.

Paz-Soldan, C.; Brookhart, M. I.; Hegna, C. C.; Forest, C. B. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)

2012-07-15T23:59:59.000Z

393

Estimating the Value of Electricity Storage Resources in Electricity...  

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

Estimating the Value of Electricity Storage Resources in Electricity Markets - EAC 2011 Estimating the Value of Electricity Storage Resources in Electricity Markets - EAC 2011 The...

394

Electricity in the Body  

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

Electricity in the Body Name: SEAN Location: NA Country: NA Date: NA Question: OUR BRAINS SEND ELECTRICAL IMPULSES RIGHT. IS IT BASICALLY SAME AS NORMAL ELECTRICITY? IS IT LIKE...

395

Matter & Energy Electricity  

E-Print Network (OSTI)

See Also: Matter & Energy Electricity Energy Technology Computers & Math Distributed Computing Computer Science Science & Society Energy Issues Environmental Policies Reference Electric power transmission Distributed generation Electric power Grid computing ScienceDaily (Oct. 12, 2010) -- A new study

Hines, Paul

396

Electric Power Annual  

Gasoline and Diesel Fuel Update (EIA)

3. Electric Power Industry - U.S. Electricity Imports from and Electricity Exports to Canada and Mexico, 2001-2011 (Megawatthours) Canada Mexico U.S. Total Year Imports from...

397

Retail Electricity Competition  

E-Print Network (OSTI)

the savings in their electricity bill. While these consumerssavings in their electricity bill. A potential argumentsurplus S(s) minus the electricity bill: E j [S(s) ? p j D

Joskow, Paul; Tirole, Jean

2004-01-01T23:59:59.000Z

398

Electrical safety guidelines  

SciTech Connect

The Electrical Safety Guidelines prescribes the DOE safety standards for DOE field offices or facilities involved in the use of electrical energy. It has been prepared to provide a uniform set of electrical safety standards and guidance for DOE installations in order to affect a reduction or elimination of risks associated with the use of electrical energy. The objectives of these guidelines are to enhance electrical safety awareness and mitigate electrical hazards to employees, the public, and the environment.

Not Available

1993-09-01T23:59:59.000Z

399

DOE handbook electrical safety  

SciTech Connect

Electrical Safety Handbook presents the Department of Energy (DOE) safety standards for DOE field offices or facilities involved in the use of electrical energy. It has been prepared to provide a uniform set of electrical safety guidance and information for DOE installations to effect a reduction or elimination of risks associated with the use of electrical energy. The objectives of this handbook are to enhance electrical safety awareness and mitigate electrical hazards to employees, the public, and the environment.

NONE

1998-01-01T23:59:59.000Z

400

Sustainable Electricity | Clean Energy | ORNL  

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

Sustainable Electricity SHARE Sustainable Electricity Outdoor power line accelerated testing. Oak Ridge National Laboratory's Energy Efficiency and Electricity Technologies Program...

Note: This page contains sample records for the topic "rotating electrical outages" 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

2012 National Electricity Forum  

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

1 U.S. Department of Energy U.S. Department of Energy National Electric Transmission Congestion Study Workshop - December 8, 2011 National Electric Transmission Congestion Study...

402

Electric:SpaceCharge  

Science Conference Proceedings (OSTI)

... OOF2: The Manual. Electric:SpaceCharge. Prev, 6.4.1. Material Properties, Next. Name. Electric:SpaceCharge Spatial charge density. Details. ...

2013-07-05T23:59:59.000Z

403

Electricity Advisory Committee  

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

3:30 - 3:40 pm Welcome and Opening Comments Kevin Kolevar, Assistant Secretary for Electricity Delivery and Energy Reliability Linda Stuntz, Chair, Electricity Advisory Committee...

404

Electric Power Annual  

Gasoline and Diesel Fuel Update (EIA)

Table 3.19. Net Generation from Geothermal by State, by Sector, 2011 and 2010 (Thousand Megawatthours) Electric Power Sector Census Division and State All Sectors Electric...

405

Electricity Monthly Update  

Gasoline and Diesel Fuel Update (EIA)

prepared by the Electric Power Operations Team, Office of Electricity, Renewables and Uranium Statistics, U.S. Energy Information Administration (EIA), U.S. Department of Energy....

406

Electric Power Annual  

Annual Energy Outlook 2012 (EIA)

7. Net Generation from Wind by State, by Sector, 2011 and 2010 (Thousand Megawatthours) Electric Power Sector Census Division and State All Sectors Electric Utilities Independent...

407

Electric Power Annual  

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

C. Natural Gas: Consumption for Electricity Generation and Useful Thermal Output, by Sector, 2001 - 2011 (Million Cubic Feet) Electric Power Sector Period Total (all sectors)...

408

Neighborhood Electric Vehicles  

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

Neighborhood Electric Vehicles A neighborhood electric vehicle (NEV) is 4-wheeled vehicle, larger than a golf cart but smaller than most light-duty passenger vehicles. NEVs are...

409

Energy Basics: Electric Vehicles  

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

& Fuels Printable Version Share this resource Fuels Vehicles Electric Vehicles Flexible Fuel Vehicles Fuel Cell Vehicles Hybrid Electric Vehicles Natural Gas Vehicles Propane...

411

Electricity Monthly Update  

Annual Energy Outlook 2012 (EIA)

CorrectionUpdate November 28, 2012 Map of Electric System Selected for Daily Peak Demand was replaced with the correct map showing Selected Wholesale Electricity and Natural Gas...

412

California's electricity crisis  

E-Print Network (OSTI)

The collapse of California's electricity restructuring and competition program has attracted attention around the world. Prices in California's competitive wholesale electricity market increased by 500% between the second ...

Joskow, Paul L.

2001-01-01T23:59:59.000Z

413

EIA Energy Kids - Electricity  

U.S. Energy Information Administration (EIA)

The energy sources we use to make electricity can be renewable or non-renewable, but electricity itself is neither renewable nor non-renewable.

414

Electrical Safety Committee Charter  

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

safety and electrical safety awareness within the APS. The committee shall implement policies and practices adopted by the ANL Electrical Safety Committee and shall assist the ANL...

415

Electricity market module: Electricity fuel dispatch submodule  

Science Conference Proceedings (OSTI)

In previous Annual Energy Outlooks (AEO), international electricity trade was represented in the National Energy Modeling System (NEMS) Electricity Market Module (EMM) modeling framework as an exogenous input. The exception to this exogenous treatment was for firm power projections, i.e., new Canadian hydroelectric model builds. The AEO95 implementation of EMM allowed Canadian hydroelectric projects to be selected in the Electricity Capacity Planning (ECP) submodule on an annual basis and otherwise addressed as any other purchased power commitments. This technical memorandum addresses modifications to the Electricity Fuel Dispatch Submodule implemented in AEO96 to enhance the treatment of international electricity trade through the representation of economy imports from Canada.

NONE

1996-06-01T23:59:59.000Z

416

Electricity Restructuring: Deregulation or Reregulation?  

E-Print Network (OSTI)

Power in the British Electricity Spot Market. American805. Catherine Wolfram. Electricity Markets: Should thePower in Wholesale Electricity Markets. The Electricity

Borenstein, Severin; Bushnell, James

2000-01-01T23:59:59.000Z

417

Energy Basics: Electric Resistance Heating  

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

or by heaters in each room. Electric resistance heating converts nearly all of the energy in the electricity to heat. Types of Electric Resistance Heaters Electric resistance...

418

A Baroclinic Laminar State for Rotating Stratified Flows  

Science Conference Proceedings (OSTI)

A baroclinic laminar model is developed as the late-time equilibrium state in the free decay of rotating stratified turbulence under low-Froude-number scaling. Vertical motions are suppressed by stratification and ambient rotation, and in the ...

Che Sun

2008-08-01T23:59:59.000Z

419

Centrifugally activated bearing for high-speed rotating machinery  

SciTech Connect

A centrifugally activated bearing is disclosed. The bearing includes an annular member that extends laterally and radially from a central axis. A rotating member that rotates about the central axis relative to the annular member is also included. The rotating member has an interior chamber that surrounds the central axis and in which the annular member is suspended. Furthermore, the interior chamber has a concave shape for retaining a lubricant therein while the rotating member is at rest and for retaining a lubricant therein while the rotating member is rotating. The concave shape is such that while the rotating member is rotating a centrifugal force causes a lubricant to be forced away from the central axis to form a cylindrical surface having an axis collinear with the central axis. This centrifugally displaced lubricant provides restoring forces to counteract lateral displacement during operation.

Post, Richard F. (Walnut Creek, CA)

1994-01-01T23:59:59.000Z

420

Entrainment in Shallow Rotating Gravity Currents: A Modeling Study  

Science Conference Proceedings (OSTI)

The physics of shallow gravity currents passing through a rotating channel at subcritical Froude number is investigated here with a series of idealized numerical experiments. It is found that the combined effects of friction and rotation set up a ...

Lars Umlauf; Lars Arneborg; Richard Hofmeister; Hans Burchard

2010-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotating electrical outages" 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

Rotating Shocks in a Separated Laboratory Channel Flow  

Science Conference Proceedings (OSTI)

Laboratory studies of the effects of wall separation on a hydraulic jump in a rotating channel of rectangular cross section are described. Separation is induced by increasing the rotation rate while maintaining a constant flow rate through the ...

L. J. Pratt

1987-04-01T23:59:59.000Z

422

A Three-Dimensional Balance Theory for Rapidly Rotating Vortices  

Science Conference Proceedings (OSTI)

A three-dimensional balance formulation for rapidly rotating vortices, such as hurricanes, is presented. The asymmetric balance (AB) theory represents a new mathematical framework for studying the slow evolution of rapidly rotating fluid systems. ...

Lloyd J. Shapiro; Michael T. Montgomery

1993-10-01T23:59:59.000Z

423

EMBRACE ELECTRIC COMPETITION OR IT'S DJ VU ALL OVER AGAIN  

E-Print Network (OSTI)

-2007....................................... 47 Figure 25 Reduction in Nuclear Refueling Outage Days economics of gas combined cycle turbine plants, competitive builders cancelled 78 percent of capacity. Coal, gas, oil, and uranium (and, to a lesser extent, water, wind, and other renewable fuels

Tesfatsion, Leigh

424

Potential Electricity Impacts of a 1978 California Drought  

E-Print Network (OSTI)

Outage Rates for Individual Power Plant Units and MajorPeak Day Emissions from Power Plants in South Coast AirPG&E a Combined Cycle Power Plant October in the San

Sathaye, J.

2011-01-01T23:59:59.000Z

425

Electrical Safety - Monthly Analyses of Electrical Safety Occurrences  

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

Office of Analysis Office of Analysis Operating Experience Committee Safety Alerts Safety Bulletins Annual Reports Special Operations Reports Safety Advisories Special Reports Causal Analysis Reviews Contact Us HSS Logo Electrical Safety Monthly Analyses of Electrical Safety Occurrences 2013 September 2013 Electrical Safety Occurrences August 2013 Electrical Safety Occurrences July 2013 Electrical Safety Occurrences June 2013 Electrical Safety Occurrences May 2013 Electrical Safety Occurrences April 2013 Electrical Safety Occurrences March Electrical Safety Occurrence February Electrical Safety Occurrence January Electrical Safety Occurrence 2012 December Electrical Safety Occurrence November Electrical Safety Occurrence October Electrical Safety Occurrence September Electrical Safety Occurrence

426

BOUNDARY EFFECTS IN ROTATING-PLASMA EXPERIMENTS  

SciTech Connect

The problem of current continuity and viscous drag at the boundaries in rotating-plasma experiments is discussed. A hypothetical model having a steady state with axial symmetry is emphasized; it is shown that the discharge impedance derived from this model does not agree with many observations. The Homopolar III'' experiment is described in which the flux surfaces were strongly convex and parallel to the toroidal-shaped electrodes. In this way friction at the insulators was reduced. But the structure of the discharge deviated drastically from axial symmetry near the outer surface. Several studies led to the conclusion that the flow pattern probably involved secondary flows. A detailed analysis of this structure was not possible. It was also found that the rotational speed could not be raised above a few cm/ mu sec because the insulators failed in spite of the special design of the experiment. 28 references. (auth)

Kunkel, W.B.; Baker, W.R.; Bratenahl, A.; Halbach, K.

1962-08-01T23:59:59.000Z

427

A renormalization approach to irrational rotations  

E-Print Network (OSTI)

We introduce a renormalization procedure which allows us to study in a unified and concise way different properties of the irrational rotations on the unit circle $\\beta \\mapsto \\set{\\alpha+\\beta}$, $\\alpha \\in \\R\\setminus \\Q$. In particular we obtain sharp results for the diffusion of the walk on $\\Z$ generated by the location of points of the sequence $\\{n\\alpha +\\beta\\}$ on a binary partition of the unit interval. Finally we give some applications of our method.

Bonanno, Claudio

2007-01-01T23:59:59.000Z

428

Quantum Key Distribution Using Quantum Faraday Rotators  

E-Print Network (OSTI)

We propose a new quantum key distribution (QKD) protocol based on the fully quantum mechanical states of the Faraday rotators. The protocol is unconditionally secure against eavesdropping for single-photon source on a noisy environment and robust against impersonation attacks. It also allows for unconditionally secure key distribution for multiphoton source up to two photons. The protocol could be implemented experimentally with the current spintronics technology on semiconductors.

Choi, T; Choi, Mahn-Soo; Choi, Taeseung

2006-01-01T23:59:59.000Z

429

Rotating sample holder at low temperature  

SciTech Connect

A low temperature rotary device (cryoturbine) for use in extended x-ray-absorption fine structure measurements in fluorescence mode has been designed and manufactured. The instrument works at a temperature close to liquid Nitrogen and can reach frequencies up to 100 Hz with good stability. The rotation speed is measured with a light-emitting diode driven in stroboscopic mode by a simple electronic circuit.

Pasternak, Sebastien; Perrin, Florian; Ciatto, Gianluca; Palancher, Herve; Steinmann, Ricardo [European Synchrotron Radiation Facility, 38043 Grenoble (France)

2007-07-15T23:59:59.000Z

430

Spin-stabilized magnetic levitation without vertical axis of rotation  

DOE Patents (OSTI)

The symmetry properties of a magnetic levitation arrangement are exploited to produce spin-stabilized magnetic levitation without aligning the rotational axis of the rotor with the direction of the force of gravity. The rotation of the rotor stabilizes perturbations directed parallel to the rotational axis.

Romero, Louis (Albuquerque, NM); Christenson, Todd (Albuquerque, NM); Aaronson, Gene (Albuquerque, NM)

2009-06-09T23:59:59.000Z

431

Measurement of turbulent wind velocities using a rotating boom apparatus  

DOE Green Energy (OSTI)

The present report covers both the development of a rotating-boom facility and the evaluation of the spectral energy of the turbulence measured relative to the rotating boom. The rotating boom is composed of a helicopter blade driven through a pulley speed reducer by a variable speed motor. The boom is mounted on a semiportable tower that can be raised to provide various ratios of hub height to rotor diameter. The boom can be mounted to rotate in either the vertical or horizontal plane. Probes that measure the three components of turbulence can be mounted at any location along the radius of the boom. Special hot-film sensors measured two components of the turbulence at a point directly in front of the rotating blade. By using the probe rotated 90/sup 0/ about its axis, the third turbulent velocity component was measured. Evaluation of the spectral energy distributions for the three components of velocity indicates a large concentration of energy at the rotational frequency. At frequencies slightly below the rotational frequency, the spectral energy is greatly reduced over that measured for the nonrotating case measurements. Peaks in the energy at frequencies that are multiples of the rotation frequency were also observed. We conclude that the rotating boom apparatus is suitable and ready to be used in experiments for developing and testing sensors for rotational measurement of wind velocity from wind turbine rotors. It also can be used to accurately measure turbulent wind for testing theories of rotationally sampled wind velocity.

Sandborn, V.A.; Connell, J.R.

1984-04-01T23:59:59.000Z

432

THE FREQUENCY OF RAPID ROTATION AMONG K GIANT STARS  

Science Conference Proceedings (OSTI)

We present the results of a search for unusually rapidly rotating giant stars in a large sample of K giants ({approx}1300 stars) that had been spectroscopically monitored as potential targets for the Space Interferometry Mission's Astrometric Grid. The stars in this catalog are much fainter and typically more metal-poor than those of other catalogs of red giant star rotational velocities, but the spectra generally only have signal-to-noise ratio (S/N) of {approx}20-60, making the measurement of the widths of individual lines difficult. To compensate for this, we have developed a cross-correlation method to derive rotational velocities in moderate S/N echelle spectra to efficiently probe this sample for rapid rotator candidates. We have discovered 28 new red giant rapid rotators as well as one extreme rapid rotator with a vsin i of 86.4 km s{sup -1}. Rapid rotators comprise 2.2% of our sample, which is consistent with other surveys of brighter, more metal-rich K giant stars. Although we find that the temperature distribution of rapid rotators is similar to that of the slow rotators, this may not be the case with the distributions of surface gravity and metallicity. The rapid rotators show a slight overabundance of low-gravity stars and as a group are significantly more metal-poor than the slow rotators, which may indicate that the rotators are tidally locked binaries.

Carlberg, Joleen K.; Majewski, Steven R.; Patterson, Richard J. [Department of Astronomy, University of Virginia, Charlottesville, VA 22904 (United States); Bizyaev, Dmitry [Apache Point Observatory, Sunspot, NM (United States); Smith, Verne V.; Cunha, Katia, E-mail: jkm9n@virginia.edu, E-mail: srm4n@virginia.edu, E-mail: ricky@virginia.edu, E-mail: dmbiz@apo.nmsu.edu, E-mail: vsmith@noao.edu, E-mail: cunha@noao.edu [NOAO, Tucson, AZ (United States)

2011-05-01T23:59:59.000Z

433

Rotational and Parabolic Surfaces in PSL2(R, ) and Applications  

E-Print Network (OSTI)

Rotational and Parabolic Surfaces in PSL2(R, ) and Applications By Carlos Espinoza Pe~nafiel 1 of either rotational isometries or parabolic isometries, immersed into the homogeneous manifold PSL2(R, ). Also, we give some applications. Keywords. Constant mean curvature. Rotational surfaces. Parabolic

Paris-Sud XI, Université de

434

Magnetization rotation or generation of incoherent spin waves? Suggestions for a spin-transfer effect experiment.  

SciTech Connect

''Spin-transfer'' torque is created when electric current is passed through metallic ferromagnets and may have interesting applications in spintronics. So far it was experimentally studied in ''collinear'' geometries, where it is difficult to predict whether magnetization will coherently rotate or spin-waves will be generated. Here we propose an easy modification of existing experiment in which the spin-polarization of incoming current will no longer be collinear with magnetization and recalculate the switching behavior of the device. We expect that a better agreement with the magnetization rotation theory will be achieved. That can be an important step in reconciling alternative points of view on the effect of spin-transfer torque.

Bazaliy, Y. B.; Jones, B. A.

2002-06-20T23:59:59.000Z

435

Thermodynamics and Hawking radiation of five-dimensional rotating charged Goedel black holes  

SciTech Connect

We study the thermodynamics of Goedel-type rotating charged black holes in five-dimensional minimal supergravity. These black holes exhibit some peculiar features such as the presence of closed timelike curves and the absence of a globally spatial-like Cauchy surface. We explicitly compute their energies, angular momenta, and electric charges that are consistent with the first law of thermodynamics. Besides, we extend the covariant anomaly cancellation method, as well as the approach of the effective action, to derive their Hawking fluxes. Both the methods of the anomaly cancellation and the effective action give the same Hawking fluxes as those from the Planck distribution for blackbody radiation in the background of the charged rotating Goedel black holes. Our results further support that Hawking radiation is a quantum phenomenon arising at the event horizon.

Wu Shuangqing [College of Physical Science and Technology, HuaZhong Normal University, Wuhan, Hubei 430079 (China); Peng Junjin [College of Physical Science and Technology, HuaZhong Normal University, Wuhan, Hubei 430079 (China); College of Science, Wuhan Textile University, Wuhan, Hubei 430074 (China)

2011-02-15T23:59:59.000Z

436

Electric car Gasoline car  

E-Print Network (OSTI)

ENAC/ Electric car (Renault) Gasoline car (competitors) Gasoline car (Renault) Market shares of an electric vehicle? Electric car (Renault) Gasoline car (competitors) Gasoline car (Renault) Market shares preferences. · Identification of population segments with a strong interest for electric cars. · Forecasting

437

Electricity Market Module  

Gasoline and Diesel Fuel Update (EIA)

This page intentionally left blank This page intentionally left blank 95 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2011 Electricity Market Module The NEMS Electricity Market Module (EMM) represents the capacity planning, dispatching, and pricing of electricity. It is composed of four submodules-electricity capacity planning, electricity fuel dispatching, electricity load and demand, and electricity finance and pricing. It includes nonutility capacity and generation, and electricity transmission and trade. A detailed description of the EMM is provided in the EIA publication, Electricity Market Module of the National Energy Modeling System 2011, DOE/EIA-M068(2011). Based on fuel prices and electricity demands provided by the other modules of the NEMS, the EMM determines the most

438

Electricity Market Module  

Gasoline and Diesel Fuel Update (EIA)

This page inTenTionally lefT blank 91 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2012 Electricity Market Module The NEMS Electricity Market Module (EMM) represents the capacity planning, dispatching, and pricing of electricity. It is composed of four submodules-electricity capacity planning, electricity fuel dispatching, electricity load and demand, and electricity finance and pricing. It includes nonutility capacity and generation, and electricity transmission and trade. A detailed description of the EMM is provided in the EIA publication, Electricity Market Module of the National Energy Modeling System 2012, DOE/EIA-M068(2012). Based on fuel prices and electricity demands provided by the other modules of the NEMS, the EMM determines the most

439

Electricity Market Module  

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

Market Module Market Module This page inTenTionally lefT blank 101 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2013 Electricity Market Module The NEMS Electricity Market Module (EMM) represents the capacity planning, dispatching, and pricing of electricity. It is composed of four submodules-electricity capacity planning, electricity fuel dispatching, electricity load and demand, and electricity finance and pricing. It includes nonutility capacity and generation, and electricity transmission and trade. A detailed description of the EMM is provided in the EIA publication, Electricity Market Module of the National Energy Modeling System 2013, DOE/EIA-M068(2013). Based on fuel prices and electricity demands provided by the other modules of the NEMS, the EMM determines the most

440

Introduction Computational Efficiency Electricity Portfolio Planning Electricity Portfolios  

E-Print Network (OSTI)

Introduction Computational Efficiency Electricity Portfolio Planning Electricity Portfolios 2009/11/30­12/01 István Maros Electricity Portfolio #12;Introduction Computational Efficiency Electricity Portfolio Outline 1 Introduction 2 Computational Efficiency 3 Electricity Portfolio Approximate

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


441

Heart - Shaped Nuclei: Condensation of Rotational Aligned Octupole Phonons  

E-Print Network (OSTI)

The strong octupole correlations in the mass region $A\\approx 226$ are interpreted as rotation-induced condensation of octupole phonons carrying three units of angular momentum aligned with the rotational axis. The condensation represents a quantum phase transition. Discrete phonon energy and parity conservation generate oscillations of the rotational sequences with positive and negative parity. The phonon condensate co-rotates with quadrupole shape forming a rotating heart shape. The coupling between the quadrupole and octupole modes reaches a maximum in the $N\\approx 136$ isotones, approaching the limit of a static heart shape.

Frauendorf, S

2007-01-01T23:59:59.000Z

442

Central Hudson Gas & Electric (Electric) - Residential Energy...  

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

electric customers who upgrade heating, cooling or ventilation systems with specific types of energy efficient equipment. These rebates include efficient central air...

443

Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1. Volume 2, Part 1C: Analysis of core damage frequency from internal events for plant operational State 5 during a refueling outage, Main report (Sections 11--14)  

SciTech Connect

This document contains the accident sequence analysis of internally initiated events for Grand Gulf, Unit 1 as it operates in the Low Power and Shutdown Plant Operational State 5 during a refueling outage. The report documents the methodology used during the analysis, describes the results from the application of the methodology, and compares the results with the results from two full power analyses performed on Grand Gulf.

Whitehead, D. [Sandia National Labs., Albuquerque, NM (United States); Darby, J. [Science and Engineering Associates, Inc., Albuquerque, NM (United States); Yakle, J. [Science Applications International Corp., Albuquerque, NM (United States)] [and others

1994-06-01T23:59:59.000Z

444

Lithium depletion and the rotational history of exoplanet host stars  

E-Print Network (OSTI)

Israelian et al. (2004) reported that exoplanet host stars are lithium depleted compared to solar-type stars without detected massive planets, a result recently confirmed by Gonzalez (2008). We investigate whether enhanced lithium depletion in exoplanet host stars may result from their rotational history. We have developed rotational evolution models for slow and fast solar-type rotators from the pre-main sequence (PMS) to the age of the Sun and compare them to the distribution of rotational periods observed for solar-type stars between 1 Myr and 5 Gyr. We show that slow rotators develop a high degree of differential rotation between the radiative core and the convective envelope, while fast rotators evolve with little core-envelope decoupling. We suggest that strong differential rotation at the base of the convective envelope is responsible for enhanced lithium depletion in slow rotators. We conclude that lithium-depleted exoplanet host stars were slow rotators on the zero-age main sequence (ZAMS) and argue that slow rotation results from a long lasting star-disk interaction during the PMS. Altogether, this suggests that long-lived disks (> 5 Myr) may be a necessary condition for massive planet formation/migration.

Jerome Bouvier

2008-08-28T23:59:59.000Z

445

Isorotation and differential rotation in a magnetic mirror with imposed E Multiplication-Sign B rotation  

SciTech Connect

Doppler spectroscopy of helium impurities in the Maryland Centrifugal Experiment reveals the simultaneous existence of isorotating and differentially rotating magnetic surfaces. Differential rotation occurs at the innermost surfaces and is conjectured to cause plasma voltage oscillations of hundreds of kilohertz by periodically changing the current path inductance. High-speed images show the periodic expulsion of plasma near the mirror ends at the same frequencies. In spite of this, the critical ionization velocity limit is exceeded, with respect to the vacuum field definition, for at least 0.5 ms.

Romero-Talamas, C. A.; Elton, R. C.; Young, W. C.; Reid, R.; Ellis, R. F. [Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742 (United States)

2012-07-15T23:59:59.000Z

446

Mechanical switching of ferro-electric rubber  

E-Print Network (OSTI)

At the A to C transition, smectic elastomers have recently been observed to undergo $\\sim$35% spontaneous shear strains. We first explicitly describe how strains of up to twice this value could be mechanically or electrically induced in Sm-$C$ elastomers by rotation of the director on a cone around the layer normal at various elastic costs depending on constraints. Secondly, for typical sample geometries, we give the various microstructures in Sm-$C$ akin to those seen in nematic elastomers under distortions with constraints. It is possible to give explicit results for the nature of the textures. Chiral Sm-$C$ elastomers are ferro-electric. We calculate how the polarization could be mechanically reversed by large, hard or soft strains of the rubber, depending upon sample geometry.

J. M. Adams; M. Warner

2008-12-09T23:59:59.000Z

447

Method and apparatus for monitoring the rotating frequency of de-energized induction motors  

DOE Patents (OSTI)

The rotational speed of a coasting induction motor is measured by sensing e residual electrical voltages at the power terminals of the motor, thus eliminating the need for conventional tachometer equipment, additional mechanical components or modifications to the induction motor itself. The power terminal voltage signal is detected and transformed into a DC voltage proportional to the frequency of the signal. This DC voltage can be input to the control system of a variable frequency motor controller to regulate the output characteristics thereof relative to the speed of the coasting motor.

Mikesell, Harvey E. (McMurray, PA); Lucy, Eric (Murrysville, PA)

1998-01-01T23:59:59.000Z

448

Method and apparatus for monitoring the rotating frequency of de-energized induction motors  

DOE Patents (OSTI)

The rotational speed of a coasting induction motor is measured by sensing e residual electrical voltages at the power terminals of the motor, thus eliminating the need for conventional tachometer equipment, additional mechanical components or modifications to the induction motor itself. The power terminal voltage signal is detected and transformed into a DC voltage proportional to the frequency of the signal. This DC voltage can be input to the control system of a variable frequency motor controller to regulate the output characteristics thereof relative to the speed of the coasting motor. 6 figs.

Mikesell, H.E.; Lucy, E.

1998-02-03T23:59:59.000Z

449

A charged rotating cylindrical shell 1  

E-Print Network (OSTI)

We give an example of a spacetime having an infinite thin rotating cylindrical shell constituted by a charged perfect fluid as a source. As the interior of the shell the BonnorMelvin universe is considered, while its exterior is represented by Datta Raychaudhuri spacetime. We discuss the energy conditions and we show that our spacetime contains closed timelike curves. Trajectories of charged test particles both inside and outside the cylinder are also examined. Expression for the angular velocity of a circular motion inside the cylinder is given.

P. Klep?; J. Horsky

2003-01-01T23:59:59.000Z

450

Two-component Bose gases under rotation  

SciTech Connect

We examine the formation of vortices in a one- and two-component gas of bosonic atoms in a harmonic trap that is set rotating. Both the mean-field Gross-Pitaevskii approach, and the numerical diagonalization method are employed. For a two-component Bose gas, we show that beside the well-known coreless vortices of single quantization, the interatomic interactions between the two species may lead to coreless vortices of multiple quantization. We furthermore comment on the geometries of the interlaced vortex patterns. In the limit of weak interactions, we finally demonstrate a number of exact results.

Bargi, S.; Kaerkkaeinen, K.; Christensson, J.; Reimann, S. M. [Mathematical Physics, LTH, Lund University, SE-22100 Lund (Sweden); Kavoulakis, G. M. [Department of Sciences, TEI of Crete, P.O. Box 1939 Heraklion, 71004 Greece (Greece); Manninen, M. [NanoScience Center, Department of Physics, FIN-40014 University of Jyvaeskylae (Finland)

2008-04-04T23:59:59.000Z

451

Manipulator for rotating and examining small spheres  

SciTech Connect

A manipulator which provides fast, accurate rotational positioning of a small sphere, such as an inertial confinement fusion target, which allows inspecting of the entire surface of the sphere. The sphere is held between two flat, flexible tips which move equal amounts in opposite directions. This provides rolling of the ball about two orthogonal axes without any overall translation. The manipulator may be controlled, for example, by an x- and y-axis driven controlled by a mini-computer which can be programmed to generate any desired scan pattern.

Weinstein, Berthold W. (Livermore, CA); Willenborg, David L. (Livermore, CA)

1980-01-01T23:59:59.000Z

452

Electricity Consumption Electricity Consumption EIA Electricity Consumption Estimates  

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

Consumption Consumption Electricity Consumption EIA Electricity Consumption Estimates (million kWh) National Petroleum Council Assumption: The definition of electricity con- sumption and sales used in the NPC 1999 study is the equivalent ofwhat EIA calls "sales by utilities" plus "retail wheeling by power marketers." This A nn u al Gro wth total could also be called "sales through the distribution grid," 2o 99 99 to Sales by Utilities -012% #N/A Two other categories of electricity consumption tracked by EIA cover on site Retail Wheeling Sales by generation for host use. The first, "nonutility onsite direct use," covers the Power Marketen 212.25% #N/A traditional generation/cogeneration facilities owned by industrial or large All Sales Through Distribution

453

Electric arc saw apparatus  

DOE Patents (OSTI)

A portable, hand held electric arc saw has a small frame for supporting an electrically conducting rotary blade which serves as an electrode for generating an electric arc to erode a workpiece. Electric current is supplied to the blade by biased brushes and a slip ring which are mounted in the frame. A pair of freely movable endless belts in the form of crawler treads stretched between two pulleys are used to facilitate movement of the electric arc saw. The pulleys are formed of dielectric material to electrically insulate the crawler treads from the frame.

Deichelbohrer, Paul R. (Richland, WA)

1986-01-01T23:59:59.000Z

454

Columbia University, Electrical Engineering Technical Report #2011-05-06, Nov. 2011  

E-Print Network (OSTI)

--We consider power line outages in the transmission system of the power grid, and specifically those caused by a natural disaster or a large scale physical attack. In the transmission system, an outage of a line may devastating effects on almost every as- pect in modern life, as well as on interdependent systems (e

Zussman, Gil

455

Towards a rapidly rotating liquid sodium dynamo P. Cardin, D. Brito, D. Jault, H.-C. Nataf, J.-P. Masson  

E-Print Network (OSTI)

at a different rotation rate an inner core permeated by a strong magnetic field. We discuss the processes. In historical times, observatory records permit to monitor the secular variation of magnetic structures field is created by self­induction in its core. In an electrically conducting liquid, fluid motions

Paris-Sud XI, Université de

456

Redundant CORDIC Rotator Based on Parallel Prediction  

E-Print Network (OSTI)

In this work we present a Cordic rotator, using carry--save arithmetic, based on the prediction of all the coefficients into which the rotation angle is decomposed. The prediction algorithm is based on the use of radix--2 microrotations with multiple shifts in the first iterations and the use of a redundant radix--2 and radix--4 representation for the coefficients in the rest of the microrotations. The use of multiple shifts facilitates the prediction of the coefficients in the case of microrotations where i n=4, being n the precision of the algorithm, and the use of radix--4 microrotations helps to reduce the total number of iterations. The prediction is carried out using the redundant representation of the z coordinate, without any need for conversions to a non--redundant representation. Finally, we present a VLSI architecture based on this algorithm. As the production of the coefficients is very fast, and they are known before starting each microrotation, the resulting architecture...

E. Antelo; J.D. Bruguera; J. Villalba; E.L. Zapata; Elisardo Antelo; Javier D. Bruguera Julio Villalba; Emilio L. Zapata

1995-01-01T23:59:59.000Z

457

Dynamics and Statistical Mechanics of Rotating and non-Rotating Vortical Flows  

SciTech Connect

Three projects were analyzed with the overall aim of developing a computational/analytical model for estimating values of the energy, angular momentum, enstrophy and total variation of fluid height at phase transitions between disordered and self-organized flow states in planetary atmospheres. It is believed that these transitions in equilibrium statistical mechanics models play a role in the construction of large-scale, stable structures including super-rotation in the Venusian atmosphere and the formation of the Great Red Spot on Jupiter. Exact solutions of the spherical energy-enstrophy models for rotating planetary atmospheres by Kac's method of steepest descent predicted phase transitions to super-rotating solid-body flows at high energy to enstrophy ratio for all planetary spins and to sub-rotating modes if the planetary spin is large enough. These canonical statistical ensembles are well-defined for the long-range energy interactions that arise from 2D fluid flows on compact oriented manifolds such as the surface of the sphere and torus. This is because in Fourier space available through Hodge theory, the energy terms are exactly diagonalizable and hence has zero range, leading to well-defined heat baths.

Lim, Chjan [RPI

2013-12-18T23:59:59.000Z

458

Electric Power Annual  

Annual Energy Outlook 2012 (EIA)

5.70 SUN PV 2011 10 10393 PUD No 1 of Klickitat County Electric Utility Roosevelt Biogas 1 WA 7832 7 10.00 LFG CT 2011 10 10393 PUD No 1 of Klickitat County Electric Utility...

459

Annual Power Electric  

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

Electric Power Annual Revision Final Data for 2011 Released: January 30, 2013 Revison Date: May 16, 2013 May 16, 2013 Data revision. 2011 Total (all sectors) and electric utility...

460

Electricity Distribution System Workshop  

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

Discussion Summary Discussion Summary Electricity Transmission System Workshop 1 Grid Tech Team Discussion Summary Electricity Transmission System Workshop 2 Table of Contents INTRODUCTION ............................................................................................................................................. 3 EXECUTIVE SUMMARY .................................................................................................................................. 4 Process ...................................................................................................................................................... 4 Synthesized Challenges ............................................................................................................................. 5

Note: This page contains sample records for the topic "rotating electrical outages" 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

Heart and Electric Potential  

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

Heart and Electric Potential Name: Pete Location: NA Country: NA Date: NA Question: What is the electrical output that the SA Node andor AV Node put out when emitting an...

462

Madrid Electric Lighting Report  

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

Electric Lighting Quality Page 1 of 2 ELECTRIC LIGHTING QUALITY MAGIC BOX is a versatile home. Its design allows to change the room size by opening and closing the movable walls...

463

Renewable Electricity Futures (Presentation)  

DOE Green Energy (OSTI)

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Hand, M. M.

2012-09-01T23:59:59.000Z

464

Fish in electrical storms  

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

Fish in electrical storms Name: Kelly A Krugeger Age: NA Location: NA Country: NA Date: NA Question: I have always been told to stay out of water during an electrical storm...

465

Renewable Electricity Futures (Presentation)  

SciTech Connect

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Mai, T.

2013-04-01T23:59:59.000Z

466

Designing electricity transmission auctions  

E-Print Network (OSTI)

The UK has ambitious plans for exploiting offshore wind for electricity production in order to meet its challenging target under the EU Renewable Energy Directive. This could involve investing up to 20bn in transmission assets to bring electricity...

Greve, Thomas; Pollitt, Michael G.

2012-10-26T23:59:59.000Z

467

Renewable Electricity Futures (Presentation)  

SciTech Connect

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Mai, T.

2012-10-01T23:59:59.000Z

468

EIA - State Electricity Profiles  

Gasoline and Diesel Fuel Update (EIA)

Capacity (megawatts) 27,638 13 Electric Utilities 23,008 8 Independent Power Producers & Combined Heat and Power 4,630 23 Net Generation (megawatthours) 125,180,739 11 Electric...

469

EIA - State Electricity Profiles  

Annual Energy Outlook 2012 (EIA)

Capacity (megawatts) 44,127 5 Electric Utilities 4,800 35 Independent Power Producers & Combined Heat and Power 39,327 3 Net Generation (megawatthours) 201,351,872 5 Electric...

470

EIA - State Electricity Profiles  

Annual Energy Outlook 2012 (EIA)

Capacity (megawatts) 26,392 15 Electric Utilities 20,115 14 Independent Power Producers & Combined Heat and Power 6,277 16 Net Generation (megawatthours) 111,750,957 12 Electric...

471

EIA - State Electricity Profiles  

Annual Energy Outlook 2012 (EIA)

Capacity (megawatts) 36,636 7 Electric Utilities 26,639 3 Independent Power Producers & Combined Heat and Power 9,998 11 Net Generation (megawatthours) 137,576,941 8 Electric...

472

2014 Electricity Form Proposals  

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

Electricity and Renewable (Photovoltaic) Survey Form Changes Proposed for Electricity and Renewable (Photovoltaic) Survey Form Changes Proposed for 2014 The U.S. Energy Information Administration (EIA) is proposing changes to its electricity data collection in 2014. These changes involve the following surveys: Form EIA-63B, "Annual Photovoltaic Cell/Module Shipments Report," Form EIA-411, "Coordinated Bulk Power Supply Program Report," Form EIA-826, "Monthly Electric Utility Sales and Revenue Report with State Distributions," Form EIA-860, "Annual Electric Generator Report," Form EIA-860M, "Monthly Update to the Annual Electric Generator Report," Form EIA-861, "Annual Electric Power Industry Report," Form EIA-861S, "Annual Electric Power Industry Report (Short Form)," and

473

Renewable Electricity Futures (Presentation)  

Science Conference Proceedings (OSTI)

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Mai, T.

2012-11-01T23:59:59.000Z

474

International Electricity Regulation  

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

U.S. trade in electric energy with Canada and Mexico is rising, bringing economic and reliability benefits to the United States and its trading partners. Within the Office of Electricity Delivery ...

475

Assessing Vehicle Electricity Demand Impacts on California Electricity Supply  

E-Print Network (OSTI)

CEC (2009) Statewide Electricity Rates by Utility, Class andrates if the marginal electricity rate from the LCFS isestimated marginal electricity emissions rate in California

McCarthy, Ryan W.

2009-01-01T23:59:59.000Z

476

Assessing Vehicle Electricity Demand Impacts on California Electricity Supply  

E-Print Network (OSTI)

55. Sample distribution of vehicle electricity demand forand distribution facilities that supply electricity demand.55. Sample distribution of vehicle electricity demand for

McCarthy, Ryan W.

2009-01-01T23:59:59.000Z

477

Electricity Grid: Impacts of Plug-In Electric Vehicle Charging  

E-Print Network (OSTI)

discusses how electricity demands for vehicle charging cantiming of vehicle electricity demands. challenges associatedand timing of vehicle electricity demand. As the number of

Yang, Christopher; McCarthy, Ryan

2009-01-01T23:59:59.000Z

478

Assessing Vehicle Electricity Demand Impacts on California Electricity Supply  

E-Print Network (OSTI)

Statewide California Electricity Demand. [accessed June 22,fuel efficiency and electricity demand assumptions used into added vehicle electricity demand in the BAU (no IGCC)

McCarthy, Ryan W.

2009-01-01T23:59:59.000Z

479

Alternative Fuels Data Center: Hybrid Electric Vehicle (HEV) and Electric  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Hybrid Electric Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) Exemption from Vehicle Testing Requirements to someone by E-mail Share Alternative Fuels Data Center: Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) Exemption from Vehicle Testing Requirements on Facebook Tweet about Alternative Fuels Data Center: Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) Exemption from Vehicle Testing Requirements on Twitter Bookmark Alternative Fuels Data Center: Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) Exemption from Vehicle Testing Requirements on Google Bookmark Alternative Fuels Data Center: Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) Exemption from Vehicle Testing Requirements on Delicious Rank Alternative Fuels Data Center: Hybrid Electric Vehicle (HEV)

480

Electric vehicle drive train with rollback detection and compensation  

DOE Patents (OSTI)

An electric vehicle drive train includes a controller for detecting and compensating for vehicle rollback, as when the vehicle is started upward on an incline. The vehicle includes an electric motor rotatable in opposite directions corresponding to opposite directions of vehicle movement. A gear selector permits the driver to select an intended or desired direction of vehicle movement. If a speed and rotational sensor associated with the motor indicates vehicle movement opposite to the intended direction of vehicle movement, the motor is driven to a torque output magnitude as a nonconstant function of the rollback speed to counteract the vehicle rollback. The torque function may be either a linear function of speed or a function of the speed squared.

Konrad, Charles E. (Roanoke, VA)

1994-01-01T23:59:59.000Z

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


481

Electric vehicle drive train with rollback detection and compensation  

DOE Patents (OSTI)

An electric vehicle drive train includes a controller for detecting and compensating for vehicle rollback, as when the vehicle is started upward on an incline. The vehicle includes an electric motor rotatable in opposite directions corresponding to opposite directions of vehicle movement. A gear selector permits the driver to select an intended or desired direction of vehicle movement. If a speed and rotational sensor associated with the motor indicates vehicle movement opposite to the intended direction of vehicle movement, the motor is driven to a torque output magnitude as a nonconstant function of the rollback speed to counteract the vehicle rollback. The torque function may be either a linear function of speed or a function of the speed squared. 6 figures.

Konrad, C.E.

1994-12-27T23:59:59.000Z

482

General Dynamics, Electric Boat  

Science Conference Proceedings (OSTI)

General Dynamics, Electric Boat. NVLAP Lab Code: 100560-0. Address and Contact Information: 75 Eastern Point Road ...

2013-08-16T23:59:59.000Z

483

Electric arc saw apparatus  

DOE Patents (OSTI)

A portable, hand-held electric arc saw apparatus comprising a small frame for supporting an electrically conducting rotary blade which serves as an electrode for generating an electric arc between the blade and a workpiece of opposite polarity. Electrically conducting means are provided on said frame for transmitting current to said blade. A pair of freely movable endless belts in the form of crawler treads are employed to facilitate movement of the apparatus relative to the workpiece.

Deichelbohrer, P.R.

1983-08-08T23:59:59.000Z

484

Electric Power Metrology News  

Science Conference Proceedings (OSTI)

... Next-generation "smart" electrical meters for residential and commercial ... NIST Team Demystifies Utility of Power Factor Correction Devices Release ...

2010-05-24T23:59:59.000Z

485

Arizona Electricity Restructuring Suspended  

U.S. Energy Information Administration (EIA)

This inactivity strongly suggests that electricity restructuring in Arizona has ... demand side management, environmental, ... United States Departmen ...

486

DOE HANDBOOK ELECTRICAL SAFETY  

E-Print Network (OSTI)

DOE HANDBOOK ELECTRICAL SAFETY U.S. Department of Energy AREA SAFT Washington, D.C. 20585 of 139 3.0 HAZARD ANALYSIS 3.1 INTRODUCTION This chapter provides tools for assessing electrical hazards error. This chapter does not provide an exhaustive list of sources of electrical energy

487

PHOTOVOLTAIC SOLAR ELECTRIC SYSTEM  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Buying a PHOTOVOLTAIC SOLAR ELECTRIC SYSTEM A Consumer Guide 2003 System: A Consumer Guide i Buying a Photovoltaic Solar Electric System A Consumer Guide California Energy water system that uses the sun's energy to heat water, solar electric or photovoltaic technology uses

Krothapalli, Anjaneyulu

488

Electrically charged pulsars  

E-Print Network (OSTI)

n the present work we investigate one possible variation on the usual electrically neutral pulsars: the inclusion of electric charge. We study the effect of electric charge in pulsars assuming that the charge distribution is proportional to the energy density. All calculations were performed for zero temperature and fixed entropy equations of state.

M. D. Alloy; D. P. Menezes

2007-04-24T23:59:59.000Z

489

Electrically charged pulsars  

E-Print Network (OSTI)

n the present work we investigate one possible variation on the usual electrically neutral pulsars: the inclusion of electric charge. We study the effect of electric charge in pulsars assuming that the charge distribution is proportional to the energy density. All calculations were performed for zero temperature and fixed entropy equations of state.

Alloy, M D

2007-01-01T23:59:59.000Z

490

CCPPolicyBriefing Electricity  

E-Print Network (OSTI)

LBNL-57942 ERNEST ORLANDO LAWRENCE BERKELEY NATIONAL LABORATORY The Effects of Electricity Tariff of Electricity Tariff Structure on Distributed Generation Adoption in New York State Prepared for the Distributed of Electricity Tariff Structure on Distributed Generation Adoption in New York State #12;The Effects

Feigon, Brooke

491

ELECTRICAL & COMPUTER ENGINEERING  

E-Print Network (OSTI)

Electrical, Computer, and Energy Engineering University of Colorado--Boulder Monday, April 2, 2012, 11:00 a an Associate Professor with the Department of Electrical Engineering, University of Colorado, Boulder. He hadELECTRICAL & COMPUTER ENGINEERING SEMINAR "A Random Walk on Image Patches" by Prof. Francois Meyer

492

President's Management Council Interagency Rotation Program | Department of  

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

President's Management Council Interagency Rotation Program President's Management Council Interagency Rotation Program President's Management Council Interagency Rotation Program To maximize effectiveness and broaden perspectives and potential, Federal agencies should invest in and emphasize career development. The Federal Government must continue to prepare its talent for challenges on the horizon. In 2011, the President's Management Council (PMC) and the Chief Human Capital Officers Council (CHCO) launched the PMC Interagency Rotation Program to bolster cross-agency exposure for high-potential GS 13-15s. Agency representatives designed the program and provide both participants and rotational opportunities. The PMC Interagency Rotation Program strengthens agency collaboration, facilitates best practice sharing across Departments, and builds a pipeline

493

Rotational actuator of motor based on carbon nanotubes  

DOE Patents (OSTI)

A rotational actuator/motor based on rotation of a carbon nanotube is disclosed. The carbon nanotube is provided with a rotor plate attached to an outer wall, which moves relative to an inner wall of the nanotube. After deposit of a nanotube on a silicon chip substrate, the entire structure may be fabricated by lithography using selected techniques adapted from silicon manufacturing technology. The structures to be fabricated may comprise a multiwall carbon nanotube (MWNT), two in plane stators S1, S2 and a gate stator S3 buried beneath the substrate surface. The MWNT is suspended between two anchor pads and comprises a rotator attached to an outer wall and arranged to move in response to electromagnetic inputs. The substrate is etched away to allow the rotor to freely rotate. Rotation may be either in a reciprocal or fully rotatable manner.

Zettl, Alexander K. (Kensington, CA); Fennimore, Adam M. (Berkeley, CA); Yuzvinsky, Thomas D. (Berkeley, CA)

2008-11-18T23:59:59.000Z

494

Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1: Evaluation of severe accident risks for plant operational state 5 during a refueling outage. Main report and appendices, Volume 6, Part 1  

SciTech Connect

Traditionally, probabilistic risk assessments (PRAS) of severe accidents in nuclear power plants have considered initiating events potentially occurring only during full power operation. Recent studies and operational experience have, however, implied that accidents during low power and shutdown could be significant contributors to risk. In response to this concern, in 1989 the Nuclear Regulatory Commission (NRC) initiated an extensive program to carefully examine the potential risks during low power and shutdown operations. Two plants, Surry (pressurized water reactor) and Grand Gulf (boiling water reactor), were selected as the plants to be studied. The program consists of two parallel projects being performed by Brookhaven National Laboratory (Surry) and Sandia National Laboratories (Grand Gulf). The program objectives include assessing the risks of severe accidents initiated during plant operational states other than full power operation and comparing the estimated risks with the risk associated with accidents initiated during full power operation as assessed in NUREG-1150. The scope of the program is that of a Level-3 PRA. The subject of this report is the PRA of the Grand Gulf Nuclear Station, Unit 1. The Grand Gulf plant utilizes a 3833 MWt BUR-6 boiling water reactor housed in a Mark III containment. The Grand Gulf plant is located near Port Gibson, Mississippi. The regime of shutdown analyzed in this study was plant operational state (POS) 5 during a refueling outage, which is approximately Cold Shutdown as defined by Grand Gulf Technical Specifications. The entire PRA of POS 5 is documented in a multi-volume NUREG report (NUREG/CR-6143). The internal events accident sequence analysis (Level 1) is documented in Volume 2. The Level 1 internal fire and internal flood analyses are documented in Vols 3 and 4, respectively.

Brown, T.D.; Kmetyk, L.N.; Whitehead, D.; Miller, L. [Sandia National Labs., Albuquerque, NM (United States); Forester, J. [Science Applications International Corp., Albuquerque, NM (United States); Johnson, J. [GRAM, Inc., Albuquerque, NM (United States)

1995-03-01T23:59:59.000Z

495

Accelerating Electric Vehicle Deployment | Department of Energy  

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

Accelerating Electric Vehicle Deployment Accelerating Electric Vehicle Deployment Accelerating Electric Vehicle Deployment Accelerating Electric Vehicle Deployment More Documents &...

496

Vehicle Technologies Office: Electrical Machines  

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

Electrical Machines to Electrical Machines to someone by E-mail Share Vehicle Technologies Office: Electrical Machines on Facebook Tweet about Vehicle Technologies Office: Electrical Machines on Twitter Bookmark Vehicle Technologies Office: Electrical Machines on Google Bookmark Vehicle Technologies Office: Electrical Machines on Delicious Rank Vehicle Technologies Office: Electrical Machines on Digg Find More places to share Vehicle Technologies Office: Electrical Machines on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Advanced Power Electronics & Electrical Machines Power Electronics Electrical Machines Thermal Control & System Integration Advanced Combustion Engines Fuels & Lubricants Materials Technologies Electrical Machines Emphasis in the electrical machines activity is on advanced motor

497

Reliability and Competitive Electricity Markets  

E-Print Network (OSTI)

Behavior in a Competitive Electricity Market, InternationalDemand Response in Electricity Markets, Hewlett FoundationGreen, R. (1999) The Electricity Contract Market in England

Joskow, Paul; Tirole, Jean

2004-01-01T23:59:59.000Z

498

The Case for Electric Vehicles  

E-Print Network (OSTI)

have put practical electric cars within reach, but politicsthat markets for electric cars might actually emergeratherTO CAR WorldResources Insnmte, 1994 TAKING CWARGE ELECTRIC

Sperling, Daniel

2001-01-01T23:59:59.000Z

499

Prospects for Neighborhood Electric Vehicles  

E-Print Network (OSTI)

improved, neighborhood electric cars will likely be seen aseven general-purpose electric cars. They con- size orgasoline-like electric cars, they wilt undoubtedlybecome

Sperling, Daniel

1994-01-01T23:59:59.000Z

500

Electric vehicles | Open Energy Information  

Open Energy Info (EERE)

Electric vehicles Jump to: navigation, search TODO: add content Electric vehicles first came into existence in the mid-19th century, when electricity was among the preferred...