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


1

Loads Providing Ancillary Services: Review of International Experience  

E-Print Network [OSTI]

Load Following)Imbalance Management (Load Following) Energy Imbalanceload participation in ancillary service markets, we offer the following

Heffner, Grayson

2008-01-01T23:59:59.000Z

2

Loads Providing Ancillary Services: Review of International Experience  

SciTech Connect (OSTI)

In this study, we examine the arrangements for and experiences of end-use loads providing ancillary services (AS) in five electricity markets: Australia, the United Kingdom (UK), the Nordic market, and the ERCOT and PJM markets in the United States. Our objective in undertaking this review of international experience was to identify specific approaches or market designs that have enabled customer loads to effectively deliver various ancillary services (AS) products. We hope that this report will contribute to the ongoing discussion in the U.S. and elsewhere regarding what institutional and technical developments are needed to ensure that customer loads can meaningfully participate in all wholesale electricity markets.

Heffner, Grayson; Goldman, Charles; Kintner-Meyer, Michael

2007-05-01T23:59:59.000Z

3

Commercial Building Loads Providing Ancillary Services in PJM  

SciTech Connect (OSTI)

The adoption of low carbon energy technologies such as variable renewable energy and electric vehicles, coupled with the efficacy of energy efficiency to reduce traditional base load has increased the uncertainty inherent in the net load shape. Handling this variability with slower, traditional resources leads to inefficient system dispatch, and in some cases may compromise reliability. Grid operators are looking to future energy technologies, such as automated demand response (DR), to provide capacity-based reliability services as the need for these services increase. While DR resources are expected to have the flexibility characteristics operators are looking for, demonstrations are necessary to build confidence in their capabilities. Additionally, building owners are uncertain of the monetary value and operational burden of providing these services. To address this, the present study demonstrates the ability of demand response resources providing two ancillary services in the PJM territory, synchronous reserve and regulation, using an OpenADR 2.0b signaling architecture. The loads under control include HVAC and lighting at a big box retail store and variable frequency fan loads. The study examines performance characteristics of the resource: the speed of response, communications latencies in the architecture, and accuracy of response. It also examines the frequency and duration of events and the value in the marketplace which can be used to examine if the opportunity is sufficient to entice building owners to participate.

MacDonald, Jason; Kiliccote, Sila; Boch, Jim; Chen, Jonathan; Nawy, Robert

2014-06-27T23:59:59.000Z

4

Commercial Building Loads Providing Ancillary Services in PJM  

E-Print Network [OSTI]

Interop 2012. Irving, TX. PJM. 2012. Regulation Self Test~/media/markets-ops/ancillary/regd-test- wave.ashx PJM (PJM Interconnection). 2013a. PJM Manual 12: Balancing

MacDonald, Jason

2014-01-01T23:59:59.000Z

5

Loads Providing Ancillary Services: Review of International Experience  

E-Print Network [OSTI]

In PJM for example, loads and generators that can follow theto generators and loads, who can follow operator’s second bya reflection of the load’s inability to follow minute-by-

Heffner, Grayson

2008-01-01T23:59:59.000Z

6

Loads Providing Ancillary Services: Review of International Experience  

E-Print Network [OSTI]

for generators. A partial list of load attributes andpartial list includes: • Minimum run times • Minimum off times • Minimum load

Heffner, Grayson

2008-01-01T23:59:59.000Z

7

Loads Providing Ancillary Services: Review of International Experience...  

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

Trading and Transmission Arrangement BUL Balancing Up Loads DSR Demand Side Response CERTS Consortium for Electric Reliability Technology Solutions EEX European...

8

Loads Providing Ancillary Services: Review of InternationalExperience-- Technical Appendix: Market Descriptions  

SciTech Connect (OSTI)

In this study, we examine the arrangements for andexperiences of end-use loads providing ancillary services (AS) in fiveelectricity markets: Australia, the United Kingdom (UK), the Nordicmarket, and the ERCOT and PJM markets in the United States. Our objectivein undertaking this review of international experience was to identifyspecific approaches or market designs that have enabled customer loads toeffectively deliver various ancillary services (AS) products. We hopethat this report will contribute to the ongoing discussion in the U.S.and elsewhere regarding what institutional and technical developments areneeded to ensure that customer loads can meaningfully participate in allwholesale electricity markets.

Grayson Heffner, Charles Goldman, Kintner-Meyer, M; Kirby, Brendan

2007-05-01T23:59:59.000Z

9

Ancillary Services Provided from DER  

SciTech Connect (OSTI)

Distributed energy resources (DER) are quickly making their way to industry primarily as backup generation. They are effective at starting and then producing full-load power within a few seconds. The distribution system is aging and transmission system development has not kept up with the growth in load and generation. The nation's transmission system is stressed with heavy power flows over long distances, and many areas are experiencing problems in providing the power quality needed to satisfy customers. Thus, a new market for DER is beginning to emerge. DER can alleviate the burden on the distribution system by providing ancillary services while providing a cost adjustment for the DER owner. This report describes 10 types of ancillary services that distributed generation (DG) can provide to the distribution system. Of these 10 services the feasibility, control strategy, effectiveness, and cost benefits are all analyzed as in the context of a future utility-power market. In this market, services will be provided at a local level that will benefit the customer, the distribution utility, and the transmission company.

Campbell, J.B.

2005-12-21T23:59:59.000Z

10

A Generalized Battery Model of a Collection of Thermostatically Controlled Loads for Providing Ancillary Service  

E-Print Network [OSTI]

. Residential Thermostatically Controlled Loads (TCLs) such as air conditioner, heat pump, water heater, and re

Sanandaji, Borhan M.

11

Loads Providing Ancillary Services: Review of International Experience-- Technical Appendix: Market Descriptions  

E-Print Network [OSTI]

for 675 MW of fast active reserves from gas turbines. Theseown reserves. Reserves resources generally consist of gasgas turbine from Norway to Esbjerg Harbor that provided regulation and reserves

Grayson Heffner, Charles Goldman, Kintner-Meyer, M; Kirby, Brendan

2007-01-01T23:59:59.000Z

12

Demand Response Providing Ancillary Services  

E-Print Network [OSTI]

Wholesale Markets Presentation by Jason MacDonald Grid Integration Group, Lawrence Berkeley National;Contents · Introduction ­ Wholesale Markets and AS ­ Why DR for AS? ­ Market Clearing Price · Value/RTOs · ISO/RTOs are balancing authorities that run open wholesale markets for both energy and Ancillary

13

E-Print Network 3.0 - ancillary load reduction Sample Search...  

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

- Department of Electrical and Computer Engineering, University of Tennessee Collection: Engineering 4 ORNLTM-2007060 Loads Providing Ancillary Services Summary: ). This was...

14

Demand Response Providing Ancillary A Comparison of Opportunities and  

E-Print Network [OSTI]

LBNL-5958E Demand Response Providing Ancillary Services A Comparison of Opportunities Government or any agency thereof or The Regents of the University of California. #12;Demand Response System Reliability, Demand Response (DR), Electricity Markets, Smart Grid Abstract Interest in using

15

Distributed Smart Grid Asset Control Strategies for Providing Ancillary Services  

SciTech Connect (OSTI)

With large-scale plans to integrate renewable generation driven mainly by state-level renewable portfolio requirements, more resources will be needed to compensate for the uncertainty and variability associated with intermittent generation resources. Distributed assets can be used to mitigate the concerns associated with renewable energy resources and to keep costs down. Under such conditions, performing primary frequency control using only supply-side resources becomes not only prohibitively expensive but also technically difficult. It is therefore important to explore how a sufficient proportion of the loads could assume a routine role in primary frequency control to maintain the stability of the system at an acceptable cost. The main objective of this project is to develop a novel hierarchical distributed framework for frequency based load control. The framework involves two decision layers. The top decision layer determines the optimal gain for aggregated loads for each load bus. The gains are computed using decentralized robust control methods, and will be broadcast to the corresponding participating loads every control period. The second layer consists of a large number of heterogeneous devices, which switch probabilistically during contingencies so that aggregated power change matches the desired amount according to the most recently received gains. The simulation results show great potential to enable systematic design of demand-side primary frequency control with stability guarantees on the overall power system. The proposed design systematically accounts for the interactions between the total load response and bulk power system frequency dynamics. It also guarantees frequency stability under a wide range of time varying operating conditions. The local device-level load response rules fully respect the device constraints (such as temperature setpoint, compressor time delays of HVACs, or arrival and departure of the deferrable loads), which are crucial for implementing real load control programs. The promise of autonomous, Grid Friendly™ response by smart appliances in the form of under-frequency load shedding was demonstrated in the GridWise Olympic Peninsula Demonstration in 2006. Each controller monitored the power grid voltage signal and requested that electrical load be shed by its appliance whenever electric power-grid frequency fell below 59.95 Hz. The controllers and their appliances responded reliably to each shallow under-frequency event, which was an average of one event per day and shed their loads for the durations of these events. Another objective of this project was to perform extensive simulation studies to investigate the impact of a population of Grid Friendly™ Appliances (GFAs) on the bulk power system frequency stability. The GFAs considered in this report are represented as demonstration units with water heaters individually modeled.

Kalsi, Karanjit; Zhang, Wei; Lian, Jianming; Marinovici, Laurentiu D.; Moya, Christian; Dagle, Jeffery E.

2013-10-30T23:59:59.000Z

16

Computer-specific metrics for the regulation and load following ancillary services  

SciTech Connect (OSTI)

In competitive electricity markets, the costs for each ancillary service should be charged to those who cause the costs to be incurred with charges based on the factors that contribute to these costs. For example, the amount of generating capacity assigned to the regulation service is a function of the short-term volatility of system load. Therefore, the charges for regulation should be related to the volatility of each load, not to its average demand. This report discusses the economic efficiency and equity benefits of assessing charges on the basis of customer-specific costs (rather than the traditional billing determinants, MWh or MW), focusing on two key real-power ancillary services, regulation and load following. The authors determine the extent to which individual customers and groups of customers contribute to the system's generation requirements for these two services. In particular, they analyze load data to determine whether some customers account for shares of these two services that differ substantially from their shares of total electricity consumption.

Kirby, B.; Hirst, E.

2000-01-01T23:59:59.000Z

17

Loads Providing Ancillary Services: Review of International Experience  

E-Print Network [OSTI]

reactive power), about two percent of PJM’s total market turnover and costing $1.17 per MWH of electricity

Heffner, Grayson

2008-01-01T23:59:59.000Z

18

Loads Providing Ancillary Services: Review of International Experience  

E-Print Network [OSTI]

AD? OpenDocument WECC 2005, Frequency Response Standard,30-minute response. Finally, a WECC proposes a reduction ineach Balancing Area to a single WECC wide spinning reserve

Heffner, Grayson

2008-01-01T23:59:59.000Z

19

Loads Providing Ancillary Services: Review of International Experience  

E-Print Network [OSTI]

Europe face steep increases in their operating reserves requirements as they add wind capacity and nuclear power

Heffner, Grayson

2008-01-01T23:59:59.000Z

20

Loads Providing Ancillary Services: Review of International Experience  

E-Print Network [OSTI]

Operator (TWh) Capacity Markets Other Markets Imbalancedispatch instructions. Capacity markets and requirements forenergy and regulating capacity markets during the capacity-

Heffner, Grayson

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

Loads Providing Ancillary Services: Review of International Experience  

E-Print Network [OSTI]

fast disturbance reserves (gas turbines and disconnectableof operating reserves than owning or contracting with gasReserves requirement via long-term bilateral contracts with gas

Heffner, Grayson

2008-01-01T23:59:59.000Z

22

Loads Providing Ancillary Services: Review of International Experience  

E-Print Network [OSTI]

of numerous new wind power plants in Norway will require anwind capacity and nuclear power generation. For example, the addition of a Finnish 1600 MW nuclear plant

Heffner, Grayson

2008-01-01T23:59:59.000Z

23

Commercial Building Loads Providing Ancillary Services in PJM  

E-Print Network [OSTI]

Council of Texas market." Energy 35 (4): 1536-1543.in US electricity markets." Energy Policy 62: 1031-1039.regulation in PJM’s markets. Energy Impacts: Frequency and

MacDonald, Jason

2014-01-01T23:59:59.000Z

24

Loads Providing Ancillary Services: Review of International Experience  

E-Print Network [OSTI]

Operations, Brendan Kirby, ORNL/TM-2006-512, July. PJM 2005.Whitepaper on PJM Forward Energy Reserve: A Centralized CallManager, Retail Markets, PJM Interconnection LLC, January

Heffner, Grayson

2008-01-01T23:59:59.000Z

25

Loads Providing Ancillary Services: Review of International Experience |  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't Happen toLeveragingLindsey Geisler About

26

Loads Providing Ancillary Services: Review of International Experience  

E-Print Network [OSTI]

in its retail and wholesale markets. The Nordic trans-Nordic system operator has developed “action plans” for increasing demand response in retail and wholesale markets.

Heffner, Grayson

2008-01-01T23:59:59.000Z

27

Loads Providing Ancillary Services: Review of International Experience  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001 LetterLight-Duty11.2.1310 DOE LBNL -62701

28

Technical Assistance to ISO's and Grid Operators For Loads Providing...  

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

Ancillary Services: Review of International Experience Increasing Renewable Energy with Hydrogen Storage and Fuel Cell Technologies 2012 Load as a Resource Program Peer Review...

29

Market and Policy Barriers for Demand Response Providing Ancillary Services in U.S. Markets  

E-Print Network [OSTI]

Wholesale Electricity Demand Response Program Comparison,J. (2009) Open Automated Demand Response Communicationsin Demand Response for Wholesale Ancillary Services.

Cappers, Peter

2014-01-01T23:59:59.000Z

30

A comparison of two GIV mechanisms for providing ancillary services at the University of Delaware  

E-Print Network [OSTI]

, called a "GIV (Grid Integrated Vehicle) mechanism". In literature, many GIV mechanisms are proposed decide autonomously on the amount of power available for ancillary services. In the centralized mechanism. INTRODUCTION Growing concerns about the environment and increasing fuel prices are causing a shift towards EVs

Firestone, Jeremy

31

Demand Response for Ancillary Services  

SciTech Connect (OSTI)

Many demand response resources are technically capable of providing ancillary services. In some cases, they can provide superior response to generators, as the curtailment of load is typically much faster than ramping thermal and hydropower plants. Analysis and quantification of demand response resources providing ancillary services is necessary to understand the resources economic value and impact on the power system. Methodologies used to study grid integration of variable generation can be adapted to the study of demand response. In the present work, we describe and illustrate a methodology to construct detailed temporal and spatial representations of the demand response resource and to examine how to incorporate those resources into power system models. In addition, the paper outlines ways to evaluate barriers to implementation. We demonstrate how the combination of these three analyses can be used to translate the technical potential for demand response providing ancillary services into a realizable potential.

Alkadi, Nasr E [ORNL; Starke, Michael R [ORNL

2013-01-01T23:59:59.000Z

32

Market and Policy Barriers for Demand Response Providing Ancillary Services in U.S. Markets  

E-Print Network [OSTI]

RTOs that administer capacity markets. This adds risk intothat includes a forward capacity market which provides adesign where no such capacity market exists and thus no

Cappers, Peter

2014-01-01T23:59:59.000Z

33

Abstract: In this paper we provide a systematic review of generator-provided reactive support as an unbundled ancillary  

E-Print Network [OSTI]

, the provision of reactive power and voltage support was bundled with other services in supplying electricity electricity. Under open access, however, reactive support and voltage control from generation sources becomes1 Abstract: In this paper we provide a systematic review of generator-provided reactive support

34

Loads Providing Ancillary Services: Review of International Experience-- Technical Appendix: Market Descriptions  

E-Print Network [OSTI]

electric boilers of district heating systems) must shedcapabilities 42 of the district heating systems not allgreater than 5 MW) district heating schemes can quickly

Grayson Heffner, Charles Goldman, Kintner-Meyer, M; Kirby, Brendan

2007-01-01T23:59:59.000Z

35

Vehicle Ancillary Load Reduction Project Close-Out Report: An Overview of the Task and a Compilation of the Research Results  

SciTech Connect (OSTI)

The amount of fuel used for climate control in U.S. vehicles reduces the fuel economy of more than 200 million light-duty conventional vehicles and thus affects U.S. energy security. Researchers at the DOE National Renewable Energy Laboratory estimated that the United States consumes about 7 billion gallons of fuel per year for air-conditioning (A/C) light-duty vehicles. Using a variety of tools, NREL researchers developed innovative techniques and technologies to reduce the amount of fuel needed for these vehicles' ancillary loads. For example, they found that the A/C cooling capacity of 5.7 kW in a Cadillac STS could be reduced by 30% while maintaining a cooldown performance of 30 minutes. A simulation showed that reducing the A/C load by 30% decreased A/C fuel consumption by 26%. Other simulations supported the great potential for improving fuel economy by using new technologies and techniques developed to reduce ancillary loads.

Rugh, J.; Farrington, R.

2008-01-01T23:59:59.000Z

36

Impacts of Providing Inertial Response on Dynamic Loads of Wind Turbine Drivetrains: Preprint  

SciTech Connect (OSTI)

There has been growing demand from the power industry for wind power plants to support power system operations. One such requirement is for wind turbines to provide ancillary services in the form of inertial response. When the grid frequency drops, it is essential for wind turbine generators (WTGs) to inject kinetic energy stored in their inertia into the grid to help arrest the frequency decline. However, the impacts of inertial response on the structural loads of the wind turbine have not been given much attention. To bridge this gap, this paper utilizes a holistic model for both fixed-speed and variable-speed WTGs by integrating the aeroelastic wind turbine model in FAST, developed by the National Renewable Energy Laboratory, with the electromechanical drivetrain model in SimDriveline and SimPowerSystems.

Girsang, I. P.; Dhupia, J.; Singh, M.; Gevorgian, V.; Muljadi, E.; Jonkman, J.

2014-09-01T23:59:59.000Z

37

Coordination of Distributed Energy Resources for Provision of Ancillary Services: Architectures and Algorithms  

E-Print Network [OSTI]

to a battery vehicle aggregator to be used as a controllable load for energy peak shaving during peak hours energy resources (DERs), e.g., photovoltaic (PV) installations, plug-in hybrid electric vehicles (PHEVs) and thermostatically-controlled loads (TCLs), that can be potentially used to provide ancillary services, e

Liberzon, Daniel

38

An Evaluation of the HVAC Load Potential for Providing Load Balancing Service  

SciTech Connect (OSTI)

This paper investigates the potential of providing aggregated intra-hour load balancing services using heating, ventilating, and air-conditioning (HVAC) systems. A direct-load control algorithm is presented. A temperature-priority-list method is used to dispatch the HVAC loads optimally to maintain consumer-desired indoor temperatures and load diversity. Realistic intra-hour load balancing signals were used to evaluate the operational characteristics of the HVAC load under different outdoor temperature profiles and different indoor temperature settings. The number of HVAC units needed is also investigated. Modeling results suggest that the number of HVACs needed to provide a {+-}1-MW load balancing service 24 hours a day varies significantly with baseline settings, high and low temperature settings, and the outdoor temperatures. The results demonstrate that the intra-hour load balancing service provided by HVAC loads meet the performance requirements and can become a major source of revenue for load-serving entities where the smart grid infrastructure enables direct load control over the HAVC loads.

Lu, Ning

2012-09-30T23:59:59.000Z

39

A case study review of technical and technology issues for transition of a utility load management program to provide system reliability resources in restructured electricity markets  

SciTech Connect (OSTI)

Utility load management programs--including direct load control and interruptible load programs--were employed by utilities in the past as system reliability resources. With electricity industry restructuring, the context for these programs has changed; the market that was once controlled by vertically integrated utilities has become competitive, raising the question: can existing load management programs be modified so that they can effectively participate in competitive energy markets? In the short run, modified and/or improved operation of load management programs may be the most effective form of demand-side response available to the electricity system today. However, in light of recent technological advances in metering, communication, and load control, utility load management programs must be carefully reviewed in order to determine appropriate investments to support this transition. This report investigates the feasibility of and options for modifying an existing utility load management system so that it might provide reliability services (i.e. ancillary services) in the competitive markets that have resulted from electricity industry restructuring. The report is a case study of Southern California Edison's (SCE) load management programs. SCE was chosen because it operates one of the largest load management programs in the country and it operates them within a competitive wholesale electricity market. The report describes a wide range of existing and soon-to-be-available communication, control, and metering technologies that could be used to facilitate the evolution of SCE's load management programs and systems to provision of reliability services. The fundamental finding of this report is that, with modifications, SCE's load management infrastructure could be transitioned to provide critical ancillary services in competitive electricity markets, employing currently or soon-to-be available load control technologies.

Weller, G.H.

2001-07-15T23:59:59.000Z

40

Demand Response Resources for Energy and Ancillary Services (Presentation)  

SciTech Connect (OSTI)

Demand response (DR) resources present a potentially important source of grid flexibility particularly on future systems with high penetrations of variable wind an solar power generation. However, DR in grid models is limited by data availability and modeling complexity. This presentation focuses on the co-optimization of DR resources to provide energy and ancillary services in a production cost model of the Colorado test system. We assume each DR resource can provide energy services by either shedding load or shifting its use between different times, as well as operating

Hummon, M.

2014-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

Prediction of Air Conditioning Load Response for Providing Spinning Reserve - ORNL Report  

SciTech Connect (OSTI)

This report assesses the use of air conditioning load for providing spinning reserve and discusses the barriers and opportunities. Air conditioning load is well suited for this service because it often increases during heavy load periods and can be curtailed for short periods with little impact to the customer. The report also provides an appendix describing the ambient temperature effect on air conditioning load.

Kueck, John D [ORNL; Kirby, Brendan J [ORNL; Ally, Moonis Raza [ORNL; Rice, C Keith [ORNL

2009-02-01T23:59:59.000Z

42

Systems and methods for providing power to a load based upon a control strategy  

DOE Patents [OSTI]

Systems and methods are provided for an electrical system. The electrical system includes a load, an interface configured to receive a voltage from a voltage source, and a controller configured to receive the voltage from the voltage source through the interface and to provide a voltage and current to the load. Wherein, when the controller is in a constant voltage mode, the controller provides a constant voltage to the load, when the controller is in a constant current mode, the controller provides a constant current to the load, and when the controller is in a constant power mode, the controller provides a constant power to the load.

Perisic, Milun; Kajouke, Lateef A; Ransom, Ray M

2013-12-24T23:59:59.000Z

43

Ancillary-service details: Dynamic scheduling  

SciTech Connect (OSTI)

Dynamic scheduling (DS) is the electronic transfer from one control area to another of the time-varying electricity consumption associated with a load or the time-varying electricity production associated with a generator. Although electric utilities have been using this technique for at least two decades, its use is growing in popularity and importance. This growth is a consequence of the major changes under way in US bulk-power markets, in particular efforts to unbundle generation from transmission and to increase competition among generation providers. DS can promote competition and increase choices. It allows consumers to purchase certain services from entities outside their physical-host area and it allows generators to sell certain services to entities other than their physical host. These services include regulation (following minute-to-minute variations in load) and operating reserves, among others. Such an increase in the number of possible suppliers and customers should encourage innovation and reduce the costs and prices of providing electricity services. The purpose of the project reported here was to collect and analyze data on utility experiences with DS. Chapter 2 provides additional details and examples of the definitions of DS. Chapter 3 explains why DS might be an attractive service that customers and generators, as well as transmission providers, might wan to use. Chapter 4 presents some of the many current DS examples the authors uncovered in their interviews. Chapter 5 discusses the costs and cost-effectiveness of DS. Chapter 6 explains what they believe can and cannot be electronically moved from one control area to another, primarily in terms of the six ancillary services that FERC defined in Order 888. Chapter 7 discusses the need for additional research on DS.

Hirst, E.; Kirby, B.

1997-01-01T23:59:59.000Z

44

Efficient bidding for hydro power plants in markets for energy and ancillary services  

E-Print Network [OSTI]

In order to preserve stability of electricity supply generators must provide ancillary services in addition to energy production. Hydroelectric resources have significant ancillary service capability because of their dynamic ...

Perekhodtsev, Dmitri

2006-01-01T23:59:59.000Z

45

Systems and methods for providing power to a load based upon a control strategy  

DOE Patents [OSTI]

Systems and methods are provided for an electrical system. The electrical system, for example, includes a first load, an interface configured to receive a voltage from a voltage source, and a controller configured to receive the voltage through the interface and to provide a voltage and current to the first load. The controller may be further configured to, receive information on a second load electrically connected to the voltage source, determine an amount of reactive current to return to the voltage source such that a current drawn by the electrical system and the second load from the voltage source is substantially real, and provide the determined reactive current to the voltage source.

Perisic, Milun; Lawrence, Christopher P; Ransom, Ray M; Kajouke, Lateef A

2014-11-04T23:59:59.000Z

46

Session 3: Impact on U.S. Ancillary Services Markets from Variable Renewable Energy (Presentation)  

SciTech Connect (OSTI)

The presentation provides an overview of how increasing penetrations of variable renewable energy on the electricity grid are impacting ancillary services markets in the United States.

Cochran, J.

2013-05-01T23:59:59.000Z

47

Ancillary Services in the United States: Independent System Operator (ISO) Perspective (Presentation)  

SciTech Connect (OSTI)

The presentation provides an overview of how increasing penetrations of variable renewable energy on the electricity grid are impacting ancillary services markets in the United States.

Cochran, J.

2013-05-01T23:59:59.000Z

48

Chapter 5. System security and ancillary Introduction  

E-Print Network [OSTI]

in generation. Provided by units that can rapidly increase or decrease their output. Load-following service

Ernst, Damien

49

A Contract-Based Approach for Ancillary Services in V2G Networks: Optimality and Learning  

E-Print Network [OSTI]

or not. Moreover, with the development of smart grid technologies [5], it is possible for EVs to make of vehicle-to-grid (V2G) technologies, it is possible to provide ancillary services to the power grid to participate in ancillary services to power grid, match the aggregated energy rate with the service request

Liu, K. J. Ray

50

DR Resources for Energy and Ancillary Services in the West (Presentation)  

SciTech Connect (OSTI)

Demand response (DR) resources present a potentially important source of grid flexibility however, DR in grid models is limited by data availability and modeling complexity. This presentation focuses on the co-optimization of DR resources to provide energy and ancillary services in a production cost model of the Colorado "test system". We assume each DR resource can provide energy services by either shedding load or shifting its use between different times, as well as operating reserves: frequency regulation, contingency reserve, and flexibility (or ramping) reserve. There are significant variations in the availabilities of different types of DR resources, which affect both the operational savings as well as the revenue for each DR resource. The results presented include the system-wide avoided fuel and generator start-up costs as well as the composite revenue for each DR resource by energy and operating reserves.

Hummon, M.; Kiliccote, S.

2014-04-01T23:59:59.000Z

51

Ancillary-service costs for 12 US electric utilities  

SciTech Connect (OSTI)

Ancillary services are those functions performed by electrical generating, transmission, system-control, and distribution-system equipment and people to support the basic services of generating capacity, energy supply, and power delivery. The Federal Energy Regulatory Commission defined ancillary services as ``those services necessary to support the transmission of electric power from seller to purchaser given the obligations of control areas and transmitting utilities within those control areas to maintain reliable operations of the interconnected transmission system.`` FERC divided these services into three categories: ``actions taken to effect the transaction (such as scheduling and dispatching services) , services that are necessary to maintain the integrity of the transmission system [and] services needed to correct for the effects associated with undertaking a transaction.`` In March 1995, FERC published a proposed rule to ensure open and comparable access to transmission networks throughout the country. The rule defined six ancillary services and developed pro forma tariffs for these services: scheduling and dispatch, load following, system protection, energy imbalance, loss compensation, and reactive power/voltage control.

Kirby, B.; Hirst, E.

1996-03-01T23:59:59.000Z

52

TECHNOLOGY NEEDS AND STATUS ON CLOSURE OF DOE RADIOACTIVE WASTE TANK ANCILLARY SYSTEMS  

SciTech Connect (OSTI)

This paper summarizes the current state of art of sampling, characterizing, retrieving, transferring and treating the incidental waste and stabilizing the void space in tank ancillary systems and the needs involved with closure of these systems. The overall effort for closing tank and ancillary systems is very large and is in the initial stages of being addressed in a systematic manner. It was recognized in doing this effort, that gaps in both technology and material application for characterization and removal of residual waste and closure of ancillary systems would be identified. Great efficiencies are to be gained by defining the technology need areas early in the closure process and providing recommendations for technical programs to improve the closure strategies. Therefore, this paper will not only summarize the state of closure of ancillary systems but also provide recommendations to address the technology gaps identified in this assessment.

Burns, H; Sharon Marra, S; Christine Langton, C

2009-01-21T23:59:59.000Z

53

Open Automated Demand Response Communications in Demand Response for Wholesale Ancillary Services  

E-Print Network [OSTI]

in Demand Response for Wholesale Ancillary Services Silain Demand Response for Wholesale Ancillary Services Silasuccessfully in the wholesale non- spinning ancillary

Kiliccote, Sila

2010-01-01T23:59:59.000Z

54

Radiation Safety Guide For Ancillary Personnel  

E-Print Network [OSTI]

, facilities, and public safety staff) who occasionally work in areas posted with the radiation symbol rules, you can ensure your safety while working in areas posted with the radiation symbol. 1. Follow allRadiation Safety Guide For Ancillary Personnel University of Washington Radiation Safety Office 203

Wilcock, William

55

Demand Response and Ancillary Services September 2008  

E-Print Network [OSTI]

Demand Response and Ancillary Services September 2008 #12;© 2008 EnerNOC, Inc. All Rights Reserved programs The purpose of this presentation is to offer insight into the mechanics of demand response and industrial demand response resources across North America in both regulated and restructured markets As of 6

56

Design of Ancillary Service Markets1 Shmuel S. Oren,  

E-Print Network [OSTI]

reforms aimed at repairing the ancillary service markets are under way in California, New England and New

57

Information technology and innovative drainage management practices for selenium load reduction from irrigated agriculture to provide stakeholder assurances and meet contaminant mass loading policy objectives  

SciTech Connect (OSTI)

Many perceive the implementation of environmental regulatory policy, especially concerning non-point source pollution from irrigated agriculture, as being less efficient in the United States than in many other countries. This is partly a result of the stakeholder involvement process but is also a reflection of the inability to make effective use of Environmental Decision Support Systems (EDSS) to facilitate technical information exchange with stakeholders and to provide a forum for innovative ideas for controlling non-point source pollutant loading. This paper describes one of the success stories where a standardized Environmental Protection Agency (EPA) methodology was modified to better suit regulation of a trace element in agricultural subsurface drainage and information technology was developed to help guide stakeholders, provide assurances to the public and encourage innovation while improving compliance with State water quality objectives. The geographic focus of the paper is the western San Joaquin Valley where, in 1985, evapoconcentration of selenium in agricultural subsurface drainage water, diverted into large ponds within a federal wildlife refuge, caused teratogenecity in waterfowl embryos and in other sensitive wildlife species. The fallout from this environmental disaster was a concerted attempt by State and Federal water agencies to regulate non-point source loads of the trace element selenium. The complexity of selenium hydrogeochemistry, the difficulty and expense of selenium concentration monitoring and political discord between agricultural and environmental interests created challenges to the regulation process. Innovative policy and institutional constructs, supported by environmental monitoring and the web-based data management and dissemination systems, provided essential decision support, created opportunities for adaptive management and ultimately contributed to project success. The paper provides a retrospective on the contentious planning process and offers suggestions as to how the technical and institutional issues could have been resolved faster through early adoption of some of the core principles of sound EDSS design.

Quinn, N.W.T.

2009-10-15T23:59:59.000Z

58

Cost-Causation-Based Tariffs for Wind Ancillary Service Impacts: Preprint  

SciTech Connect (OSTI)

Conference paper discussing the integration cost of wind. Although specific tariffs for wind generation for ancillary services are uncommon, we anticipate that balancing authorities (control areas) and other entities will move toward such tariffs. Tariffs for regulation and imbalance services should be cost-based, recognize the relevant time scales that correspond with utility operational cycles, and properly allocate those costs to those entities that cause the balancing authority to incur the costs. In this paper, we present methods for separating wind's impact into regulation and load following (imbalance) time scales. We show that approximating these impacts with simpler methods can significantly distort cost causation and even cause confusion between the relevant time scales. We present results from NREL's wind data collection program to illustrate the dangers of linearly scaling wind resource data from small wind plants to approximate the wind resource data from large wind plants. Finally, we provide a framework for developing regulation and imbalance tariffs, we outline methods to begin examining contingency reserve requirements for wind plants, we provide guidance on the important characteristics to consider, and we provide hypothetical cases that the tariff can be tested against to determine whether the results are desired.

Kirby, B.; Milligan, M.; Wan, Y.

2006-06-01T23:59:59.000Z

59

Abstract--This paper proposes a two-level framework for the operation of a competitive market for reactive power ancillary  

E-Print Network [OSTI]

and the selected reactive power service providers. Index Terms- System operation, ancillary services, electricity reactive power provisions in the context of deregulated electricity markets, namely, reactive power for reactive power ancillary services. It is argued that the first-level, i.e. reactive power procurement

Cañizares, Claudio A.

60

ancillary service rate: Topics by E-print Network  

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

University of 7 Field Testing of Automated Demand Response for Integration of Renewable Resources in California's Ancillary Services Market for Regulation Products...

Note: This page contains sample records for the topic "loads providing ancillary" 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

ancillary services review: Topics by E-print Network  

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

University of California eScholarship Repository Summary: structure, including wholesale energy and ancillary markets;wholesale trading in electricity is conducted via an...

62

ancillary pilin subunit: Topics by E-print Network  

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

email: andrew.kingston@anu.edu.au 2 Computer Vision and Robotics, CECS Trumpf, Jochen 5 Demand Response and Ancillary Services September 2008 Power Transmission, Distribution and...

63

ancillary services allocation: Topics by E-print Network  

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

Services September 2008 Power Transmission, Distribution and Plants Websites Summary: Demand Response and Ancillary Services September 2008 12; 2008 EnerNOC, Inc. All...

64

ancillary study gog: Topics by E-print Network  

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

direct use of radioactive materials andor radiation Rhode Island, University of 7 Demand Response and Ancillary Services September 2008 Power Transmission, Distribution and...

65

Low cost electronic ultracapacitor interface technique to provide load leveling of a battery for pulsed load or motor traction drive applications  

DOE Patents [OSTI]

A battery load leveling arrangement for an electrically powered system in which battery loading is subject to intermittent high current loading utilizes a passive energy storage device and a diode connected in series with the storage device to conduct current from the storage device to the load when current demand forces a drop in battery voltage. A current limiting circuit is connected in parallel with the diode for recharging the passive energy storage device. The current limiting circuit functions to limit the average magnitude of recharge current supplied to the storage device. Various forms of current limiting circuits are disclosed, including a PTC resistor coupled in parallel with a fixed resistor. The current limit circuit may also include an SCR for switching regenerative braking current to the device when the system is connected to power an electric motor.

King, Robert Dean (Schenectady, NY); DeDoncker, Rik Wivina Anna Adelson (Malvern, PA)

1998-01-01T23:59:59.000Z

66

Competitive Acquisition of Prioritizable Capacity-Based Ancillary Services  

E-Print Network [OSTI]

the competitive procurement of capacity-based ancillary services (AS) in unbundled markets by the Independent Grid1 Competitive Acquisition of Prioritizable Capacity-Based Ancillary Services Gianfranco Chicco Operator (IGO). The capacity-based AS are prioritized in order of ascending response times. Prioritization

67

Spinning Reserve From Responsive Loads  

SciTech Connect (OSTI)

Responsive load is the most underutilized reliability resource available to the power system today. It is currently not used at all to provide spinning reserve. Historically there were good reasons for this, but recent technological advances in communications and controls have provided new capabilities and eliminated many of the old obstacles. North American Electric Reliability Council (NERC), Federal Energy Regulatory Commission (FERC), Northeast Power Coordinating Council (NPCC), New York State Reliability Council (NYSRC), and New York Independent System Operator (NYISO) rules are beginning to recognize these changes and are starting to encourage responsive load provision of reliability services. The Carrier ComfortChoice responsive thermostats provide an example of these technological advances. This is a technology aimed at reducing summer peak demand through central control of residential and small commercial air-conditioning loads. It is being utilized by Long Island Power Authority (LIPA), Consolidated Edison (ConEd), Southern California Edison (SCE), and San Diego Gas and Electric (SDG&E). The technology is capable of delivering even greater response in the faster spinning reserve time frame (while still providing peak reduction). Analysis of demand reduction testing results from LIPA during the summer of 2002 provides evidence to back up this claim. It also demonstrates that loads are different from generators and that the conventional wisdom, which advocates for starting with large loads as better ancillary service providers, is flawed. The tempting approach of incrementally adapting ancillary service requirements, which were established when generators were the only available resources, will not work. While it is easier for most generators to provide replacement power and non-spinning reserve (the slower response services) than it is to supply spinning reserve (the fastest service), the opposite is true for many loads. Also, there is more financial reward for supplying spinning reserve than for supplying the other reserve services as a result of the higher spinning reserve prices. The LIPAedge program (LIPA's demand reduction program using Carrier ComfortChoice thermostats) provides an opportunity to test the use of responsive load for spinning reserve. With potentially 75 MW of spinning reserve capability already installed, this test program can also make an important contribution to the capacity needs of Long Island during the summer of 2003. Testing could also be done at ConEd ({approx}30 MW), SCE ({approx}15 MW), and/or SDG&E ({approx}15 MW). This paper is divided into six chapters. Chapter 2 discusses the contingency reserve ancillary services, their functions in supporting power system reliability, and their technical requirements. It also discusses the policy and tariff requirements and attempts to distinguish between ones that are genuinely necessary and ones that are artifacts of the technologies that were historically used to provide the services. Chapter 3 discusses how responsive load could provide contingency reserves (especially spinning reserve) for the power system. Chapter 4 specifically discusses the Carrier ComfortChoice responsive thermostat technology, the LIPAedge experience with that technology, and how the technology could be used to supply spinning reserve. Chapter 5 discusses a number of unresolved issues and suggests areas for further research. Chapter 6 offers conclusions and recommendations.

Kirby, B.J.

2003-04-08T23:59:59.000Z

68

E-Print Network 3.0 - ancillary benefit modeling Sample Search...  

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

Summary: . Palmer, A. Paul, M. Toma, C. Bloyd. "Ancillary Benefits of Reduced Air Pollution in the US from Moderate... . "Ancillary Benefits of Reduced Air Pollution in the...

69

Grid Integration of Aggregated Demand Response, Part 1: Load Availability Profiles and Constraints for the Western Interconnection  

E-Print Network [OSTI]

is estimated. Keywords: Demand response, ancillary services,of Aggregated Demand Response, Part 1: Load Availabilityof Energy (DOE) Demand Response and Energy Storage

Olsen, Daniel J.

2014-01-01T23:59:59.000Z

70

Transactive Control and Coordination of Distributed Assets for Ancillary Services  

SciTech Connect (OSTI)

The need to diversify energy supplies, the need to mitigate energy-related environmental impact, and the entry of electric vehicles in large numbers present challenges and opportunities to power system professionals. Wind and solar power provide many benefits, and to reap the benefits the resulting increased variability—forecasted as well as unforecasted—should be addressed. Demand resources are receiving increasing attention as one means of providing the grid balancing services. Control and coordination of a large number (~millions) of distributed smart grid assets requires innovative approaches. One such is transactive control and coordination (TC2)—a distributed, agent-based incentive and control system. The TC2 paradigm is to create a market system with the following characteristics: • Participation should be entirely voluntary. • The participant decides at what price s/he is willing to participate. • The bids and responses are automated. Such an approach has been developed and demonstrated by Pacific Northwest National Laboratory for energy markets. It is the purpose of this project to develop a similar approach for ancillary services. In this report, the following ancillary services are considered: • spinning reserve • ramping • regulation. These services are to be provided by the following devices: • refrigerators • water heaters • clothes dryers • variable speed drives. The important results are summarized below: The regulation signal can be divided into an energy-neutral high frequency component and a low frequency component. The high frequency component is particularly well suited for demand resources. The low frequency component, which carries energy non-neutrality, can be handled by a combination of generators and demand resources. An explicit method for such a separation is obtained from an exponentially weighted moving average filter. Causal filters (i.e., filters that process only present and past values of a signal) introduce delays that can be issues in some signal processing applications that treat the high frequency part as a noise to be eliminated. For regulation, the high frequency component is an essential part of the signal. The delay in the low frequency component is not a problem. A stochastic self-dispatch algorithm determines the response of the devices to the regulation signal. • In an ensemble of devices under normal operation, some devices turn on and some turn off in any time interval. Demand response necessitates turning off devices that would normally be on, or turning on devices that would normally be off. Over time, some of these would have turned off on their own. A formalism to determine expectation values under a combination of natural and forced attrition has been developed. This formalism provides a mechanism for accomplishing a desired power profile within a bid period. In particular, a method to minimize regulation requirement can be developed. The formulation provides valuable insights into control. • Some ancillary services—ramping to absorb unforecasted increase in renewable generation, and regulation down—require the demand resources to increase their energy use. Some resources such as HVAC systems can do this readily, whereas some others require enabling technology. Even without such technology, it is possible to arrange refrigerators and water heaters to have an energy debt and be ready to increase their energy use. A transactive bid mechanism of revolving debt can be developed for this purpose. Dramatic changes in control systems, architecture and markets are expected in the electrical grid. The technical capabilities of a large number of devices interacting with the grid are changing. While it is too early to describe complete solutions, TC2 has attractive features suitable for adapting to the changes. The analyses in this report and the activities planned for FY 14 and beyond are designed to facilitate this transition.

Subbarao, Krishnappa; Fuller, Jason C.; Kalsi, Karanjit; Somani, Abhishek; Pratt, Robert G.; Widergren, Steven E.; Chassin, David P.

2013-09-18T23:59:59.000Z

71

access ancillary services: Topics by E-print Network  

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

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Demand Response and Ancillary Services September 2008 Power Transmission, Distribution and...

72

Using Dimmable Lighting for Regulation Capacity and Non-Spinning Reserves in the Ancillary Services Market. A Feasibility Study.  

SciTech Connect (OSTI)

The objective of this Feasibility Study was to identify the potential of dimmable lighting for providing regulation capacity and contingency reserves if massively-deployed throughout the State. We found that one half of the total electric lighting load in the California commercial sector is bottled up in larger buildings that are greater an 50,000 square feet. Retrofitting large California buildings with dimmable lighting to enable fast DR lighting would require an investment of about $1.8 billion and a"fleet" of about 56 million dimming ballasts. By upgrading the existing installed base of lighting and controls (primarily in large commercial facilities) a substantial amount of ancillary services could be provided. Though not widely deployed, today's state-of-the art lighting systems, control systems and communication networks could be used for this application. The same lighting control equipment that is appropriate for fast DR is also appropriate for achieving energy efficiency with lighting on a daily basis. Thus fast DR can leverage the capabilities that are provided by a conventional dimming lighting control system. If dimmable lighting were massively deployed throughout large California buildings (because mandated by law, for example) dimmable lighting could realistically supply 380 MW of non-spinning reserve, 47percent of the total non-spinning reserves needed in 2007.

Rubinstein, Francis; Xiaolei, Li; Watson, David S.

2010-12-03T23:59:59.000Z

73

Abstract--Load serving entities (LSE) and holders of default service obligations, in restructured electricity markets, provide  

E-Print Network [OSTI]

, in restructured electricity markets, provide electricity service at regulated or contracted fixed prices while standard forward contracts and commodity derivatives. Keywords: Electricity Markets, Risk Management, Volumetric hedging, I. INTRODUCTION The introduction of competitive wholesale markets in the electricity

Oren, Shmuel S.

74

Load Management for Industry  

E-Print Network [OSTI]

In the electric utility industry, load management provides the opportunity to control customer loads to beneficially alter a utility's load curve Load management alternatives are covered. Load management methods can be broadly classified into four...

Konsevick, W. J., Jr.

1982-01-01T23:59:59.000Z

75

Fundamental design issues in markets for ancillary services  

SciTech Connect (OSTI)

While ancillary services are an essential feature of electricity markets, the designs of markets for these services have known ad hoc evolutions. A comprehensive approach is needed, requiring the solving of nine fundamental issues to create the most efficient markets. (author)

Rebours, Yann; Kirschen, Daniel; Trotignon, Marc

2007-07-15T23:59:59.000Z

76

Total Mercury, Methylmercury, Methylmercury Production Potential, and Ancillary Streambed-Sediment and Pore-  

E-Print Network [OSTI]

Total Mercury, Methylmercury, Methylmercury Production Potential, and Ancillary Streambed Oak Creek, Wisconsin (center). (All photographs by the authors.) #12;Total Mercury, Methylmercury.E., 2008, Total mercury, methylmercury, methylmercury production potential, and ancillary streambed

77

Open Automated Demand Response Communications in Demand Response for Wholesale Ancillary Services  

SciTech Connect (OSTI)

The Pacific Gas and Electric Company (PG&E) is conducting a pilot program to investigate the technical feasibility of bidding certain demand response (DR) resources into the California Independent System Operator's (CAISO) day-ahead market for ancillary services nonspinning reserve. Three facilities, a retail store, a local government office building, and a bakery, are recruited into the pilot program. For each facility, hourly demand, and load curtailment potential are forecasted two days ahead and submitted to the CAISO the day before the operation as an available resource. These DR resources are optimized against all other generation resources in the CAISO ancillary service. Each facility is equipped with four-second real time telemetry equipment to ensure resource accountability and visibility to CAISO operators. When CAISO requests DR resources, PG&E's OpenADR (Open Automated DR) communications infrastructure is utilized to deliver DR signals to the facilities energy management and control systems (EMCS). The pre-programmed DR strategies are triggered without a human in the loop. This paper describes the automated system architecture and the flow of information to trigger and monitor the performance of the DR events. We outline the DR strategies at each of the participating facilities. At one site a real time electric measurement feedback loop is implemented to assure the delivery of CAISO dispatched demand reductions. Finally, we present results from each of the facilities and discuss findings.

Kiliccote, Sila; Piette, Mary Ann; Ghatikar, Girish; Koch, Ed; Hennage, Dan; Hernandez, John; Chiu, Albert; Sezgen, Osman; Goodin, John

2009-11-06T23:59:59.000Z

78

Flexibility of Commercial Building HVAC Fan as Ancillary Service for Smart Grid  

E-Print Network [OSTI]

Efficient Building Control Systems, Smart Grid and AircraftCommercial Building HVAC Fan as Ancillary Service for Smart

Maasoumy, Mehdi

2013-01-01T23:59:59.000Z

79

A case study review of technical and technology issues for transition of a utility load management program to provide system reliability resources in restructured electricity markets  

E-Print Network [OSTI]

Issues for Transition of a Utility Load Management ProgramSCE’s load management system is to transition from providinga transition from SCE’s current load management system to an

Weller, G.H.

2001-01-01T23:59:59.000Z

80

Quantum computation mediated by ancillary qudits and spin coherent states  

E-Print Network [OSTI]

Models of universal quantum computation in which the required interactions between register (computational) qubits are mediated by some ancillary system are highly relevant to experimental realisations of a quantum computer. We introduce such a universal model that employs a $d$-dimensional ancillary qudit. The ancilla-register interactions take the form of controlled displacements operators, with a displacement operator defined on the periodic and discrete lattice phase space of a qudit. We show that these interactions can implement controlled phase gates on the register by utilising geometric phases that are created when closed loops are traversed in this phase space. The extra degrees of freedom of the ancilla can be harnessed to reduce the number of operations required for certain gate sequences. In particular, we see that the computational advantages of the quantum bus (qubus) architecture, which employs a field-mode ancilla, are also applicable to this model. We then explore an alternative ancilla-mediated model which employs a spin-ensemble as the ancillary system and again the interactions with the register qubits are via controlled displacement operators, with a displacement operator defined on the Bloch sphere phase space of the spin coherent states of the ensemble. We discuss the computational advantages of this model and its relationship with the qubus architecture.

Timothy J. Proctor; Shane Dooley; Viv Kendon

2014-12-09T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

E-Print Network 3.0 - ancillary services hospital Sample Search...  

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

13 Chief Health Sciences Counsel P. Schneider Summary: Safety Health & Safety Biomedical Engineering Ancillary Services Laboratory Services Respiratory Therapy... . Murry IS...

82

E-Print Network 3.0 - ancillary-service details regulation Sample...  

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

the optimization period, price and solar forecasting, ancillary service sales, capacity value... ... Source: Renewal Resource Data Center, National Center for Photovoltaics...

83

E-Print Network 3.0 - ancillary equipment unit Sample Search...  

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

Pumps - Vaporizers - Ancillaries 2... May 8, 2007 Jerry Gillette Large-Scale Liquid Hydrogen Handling Equipment Hydrogen Delivery... - Scale Liquid Hydrogen Handling Equipment...

84

Market and Policy Barriers for Demand Response Providing Ancillary Services in U.S. Markets  

E-Print Network [OSTI]

Organized Wholesale Energy Markets. FERC (2011b) Order 755:co-optimization with the energy markets) of the marginalcompared to the wholesale energy markets in these ISO/RTOs.

Cappers, Peter

2014-01-01T23:59:59.000Z

85

ORNL/TM-2005/263 ANCILLARY SERVICES PROVIDED FROM DER  

E-Print Network [OSTI]

of Energy (DOE) Information Bridge: Web site: http://www.osti.gov/bridge Reports produced before January 1

Tolbert, Leon M.

86

Managing Sustainable Demand-side Infrastructure for Power System Ancillary Services  

E-Print Network [OSTI]

Managing Sustainable Demand-side Infrastructure for Power System Ancillary Services by Simon Sustainable Demand-side Infrastructure for Power System Ancillary Services by Simon Christopher Parkinson B highly-distributed sustainable demand- side infrastructure, in the form of heat pumps, electric vehicles

Victoria, University of

87

Effective Ancillary Services Market Designs on High Wind Power Penetration Systems: Preprint  

SciTech Connect (OSTI)

This paper focuses on how the ancillary service market designs are implemented and how they may require changes on systems with greater penetrations of variable renewable energy suppliers, in particular wind power. Ancillary services markets have been developed in many of the restructured power system regions throughout the world. Ancillary services include the services that support the provision of energy to support power system reliability. The ancillary services markets are tied tightly to the design of the energy market and to the physics of the system and therefore careful consideration of power system economics and engineering must be considered in their design. This paper focuses on how the ancillary service market designs are implemented and how they may require changes on systems with greater penetrations of variable renewable energy suppliers, in particular wind power.

Ela, E.; Kirby, B.; Navid, N.; Smith, J. C.

2011-12-01T23:59:59.000Z

88

Alternative Approaches for Incentivizing the Frequency Responsive Reserve Ancillary Service  

SciTech Connect (OSTI)

Frequency responsive reserve is the autonomous response of generators and demand response to deviations of system frequency, usually as a result of the instantaneous outage of a large supplier. Frequency responsive reserve arrests the frequency decline resulting in the stabilization of system frequency, and avoids the triggering of under-frequency load-shedding or the reaching of unstable frequencies that could ultimately lead to system blackouts. It is a crucial service required to maintain a reliable and secure power system. Regions with restructured electricity markets have historically had a lack of incentives for frequency responsive reserve because generators inherently provided the response and on large interconnected systems, more than sufficient response has been available. This may not be the case in future systems due to new technologies and declining response. This paper discusses the issues that can occur without proper incentives and even disincentives, and proposes alternatives to introduce incentives for resources to provide frequency responsive reserve to ensure an efficient and reliable power system.

Ela, E.; Milligan, M.; Kirby, B.; Tuohy, A.; Brooks, D.

2012-03-01T23:59:59.000Z

89

Spinning Reserve from Pump Load: A Technical Findings Report to the California Department of Water Resources  

SciTech Connect (OSTI)

The Oak Ridge National Laboratory (ORNL), at the request of the California Energy Commission and the U.S. Department of Energy, is investigating opportunities for electrical load to provide the ancillary service of spinning reserve to the electric grid. The load would provide this service by stopping for a short time when there is a contingency on the grid such as a transmission line or generator outage. There is a possibility that a significant portion of the California Independent System Operator's (CAISO's) spinning reserve requirement could be supplied from the California Department of Water Resources (CDWR) pumping load. Spinning reserve has never been supplied from load before, and rule changes would be needed to allow it. In this report, we are presenting technical findings on the possibility of supplying spinning reserve from pumping system load. In parallel, we are pursuing the needed rule changes with the North American Electric Reliability Council (NERC), the Federal Energy Regulatory Commission (FERC), the Western Electricity Coordinating Council (WECC), and the CAISO. NERC and FERC have agreed that they have no prohibition against supplying spinning reserve from load. The WECC Minimum Operability Reliability Criteria working group has agreed that the concept should be considered, and they are presently discussing the needed tariff and rule changes. Presently, spinning reserve is provided by generation that is actually spinning but is operating at low power levels and can be ramped up quickly to provide reserve power. In a sense, this is an inefficient and environmentally unfriendly way of providing reserves because it requires the generator to operate at a low power level that may be inefficient and may discharge more pollutants per kW than operating at rated power. It would be better if this generation capacity were in a position to bid into the energy market. Providing an additional supply of spinning reserve would tend to reduce prices for both reserves and the regular electric energy market. The CAISO is presently in the process of redesigning its market rules for ancillary services. The time is right to pursue this opportunity to supply spinning reserve from load. It is our hope that the CDWR will endorse this recommendation. ORNL will then work with FERC, NERC, WECC, and the CAISO to obtain the needed rule changes. This project would provide the CDWR with another option in the complex process of obtaining its energy at the lowest possible cost, while at the same time providing more flexibility to the ISO and relief to the energy market. After this project is implemented in California, we hope that the practice spreads across the nation, allowing much more flexibility in energy markets and increasing the availability of reserve services.

Kirby, BJ

2005-05-06T23:59:59.000Z

90

Photocatalytic Conversion of CO2 to CO using Rhenium Bipyridine Platforms Containing Ancillary Phenyl or BODIPY Moieties  

SciTech Connect (OSTI)

Harnessing of solar energy to drive the reduction of carbon dioxide to fuels requires the development of efficient catalysts that absorb sunlight. In this work, we detail the synthesis, electrochemistry and photophysical properties of a set of homologous fac-ReI(CO)3 complexes containing either an ancillary phenyl (8) or BODIPY (12) substituent. These studies demonstrate that both the electronic properties of the rhenium center and BODIPY chromophore are maintained for these systems. Photolysis studies demonstrate that both assemblies 8 and 12 are competent catalysts for the photochemical reduction of CO2 to CO in DMF using triethanolamine (TEOA) as a sacrificial reductant. Both these systems display TOFs for photocatalytic CO production upon irradiation with light ( ex 400 nm) of ~5 hr 1 with TON values of approximately 20. Although structural and photophysical measurements demonstrate that electronic coupling between the BODIPY and fac-ReI(CO)3 units is limited for complex 12, this work clearly shows that the photoactive BODIPY moiety is tolerated during catalysis and does not interfere with the observed photochemistry. When taken together, these results provide a clear roadmap for the development of advanced rhenium bipyridine complexes bearing ancillary BODIPY groups for the efficient photocatalytic reduction of CO2 using visible light.

Andrade, Gabriel [University of Delaware; Pistner, Allen [University of Delaware; Yapp, Glenn P. A. [University of Delaware; Lutterman, Daniel A [ORNL; Rosenthal, Joel [University of Delaware

2013-01-01T23:59:59.000Z

91

Please cite this article in press as: White III, R.A., et al., Digital PCR provides absolute quantitation of viral load for an occult RNA virus. J. Virol. Methods (2011), doi:10.1016/j.jviromet.2011.09.017  

E-Print Network [OSTI]

without need for a standard curve. © 2011 Published by Elsevier B.V. 1. Introduction20 Viral load testing quantitation of viral load for an occult RNA virus. J. Virol. Methods (2011), doi:10.1016/j.jviromet.2011.elsevier.com/locate/jviromet Digital PCR provides absolute quantitation of viral load for an occult RNA virus1 Richard Allen White IIIa

Quake, Stephen R.

2011-01-01T23:59:59.000Z

92

Flexibility of Commercial Building HVAC Fan as Ancillary Service for Smart Grid  

E-Print Network [OSTI]

controlled loads for load following,” in System Science (such as regulation and load following, have been formalized

Maasoumy, Mehdi

2013-01-01T23:59:59.000Z

93

Regulatory issues associated with closure of the Hanford AX Tank Farm ancillary equipment  

SciTech Connect (OSTI)

Liquid mixed, high-level radioactive waste has been stored in underground single-shell tanks at the US Department of Energy`s (DOE`s) Hanford Site. After retrieval of the waste from the single-shell tanks, the DOE will proceed with closure of the tank farm. The 241-AX Tank Farm includes four one-million gallon single-shell tanks in addition to sluice lines, transfer lines, ventilation headers, risers, pits, cribs, catch tanks, buildings, well and associated buried piping. This equipment is classified as ancillary equipment. This document addresses the requirements for regulatory close of the ancillary equipment in the Hanford Site 241-AX Tank Farm. The options identified for physical closure of the ancillary equipment include disposal in place, disposal in place after treatment, excavation and disposal on site in an empty single-shell tank, and excavation and disposal outside the AX Tank Farm. The document addresses the background of the Hanford Site and ancillary equipment in the AX Tank Farm, regulations for decontamination and decommissioning of radioactively contaminated equipment, requirements for the cleanup and disposal of radioactive wastes, cleanup and disposal requirements governing hazardous and mixed waste, and regulatory requirements and issues associated with each of the four physical closure options. This investigation was conducted by the Sandia National Laboratories, Albuquerque, New Mexico, during Fiscal Year 1998 for the Hanford Tanks Initiative Project.

Becker, D.L.

1998-09-02T23:59:59.000Z

94

Ancillary Frequency Control of Direct Drive Full-Scale Converter Based Wind Power Plants  

E-Print Network [OSTI]

presents a simulation model of a wind power plant based on a MW-level variable speed wind turbineAncillary Frequency Control of Direct Drive Full-Scale Converter Based Wind Power Plants Weihao Hu with a full-scale back-to-back power converter developed in the simulation tool of DIgSILENT Power Factory

Chen, Zhe

95

San Diego Gas & Electric Company v. Sellers of Energy and Ancillary Services  

E-Print Network [OSTI]

Fact Sheet San Diego Gas & Electric Company v. Sellers of Energy and Ancillary Services Docket No. EL00-95-000 July 6, 2007 The Federal Energy Regulatory Commission today approved an $18 million uncontested settlement that resolves matters and claims related to BP Energy Company (BP) and California

Laughlin, Robert B.

96

Alternative Approaches for Incentivizing the Frequency Responsive Reserve Ancillary Service  

SciTech Connect (OSTI)

Frequency responsive reserve is the autonomous response of generators and demand response to deviations of system frequency, usually as a result of the instantaneous outage of a large supplier. This article discusses the issues that can occur without proper incentives and even disincentives, and proposes alternatives to introduce incentives for resources to provide frequency responsive reserve to ensure an efficient and reliable power system.

Ela, E.; Tuohy, A.; Milligan, M.; Kirby, B.; Brooks, D.

2012-05-01T23:59:59.000Z

97

Peer-to-Peer Consultations: Ancillary Services Peer Exchange with India: Experience from South Africa, Europe & the United States (Fact Sheet)  

SciTech Connect (OSTI)

In support of national and subnational decision makers, the 21st Century Power Partnership regularly works with country partners to organize peer-to-peer consultations on critical issues. In March 2014, 21CPP collaborated with the Regulatory Assistance Project - India to host two peer-to-peer exchanges among experts from India, South Africa, Europe, and the United States to discuss the provision of ancillary services, particularly in the context of added variability and uncertainty from renewable energy. This factsheet provides a high level summary of the peer-to-peer consultation.

Not Available

2014-05-01T23:59:59.000Z

98

Open Automated Demand Response Communications in Demand Response for Wholesale Ancillary Services  

E-Print Network [OSTI]

shows how the actual load profile follows the hourly bidscriteria were as follows: Low load variability – enhancesloads, the actual loads do not closely follow the forecasted

Kiliccote, Sila

2010-01-01T23:59:59.000Z

99

Recovery Act Weekly Video: 200 Area Asbestos Removal, U-Ancillary Demolition, 200 West Transfer Building Footings  

SciTech Connect (OSTI)

A weekly update of the Recovery Act at work. Demolition of U-Ancillary that was contaminated with uranium and asbestos as well as removing asbestos from the Steam Generation Plant in the 200 East Area.

None

2010-01-01T23:59:59.000Z

100

Field Testing of Automated Demand Response for Integration of Renewable Resources in California's Ancillary Services Market for Regulation Products  

E-Print Network [OSTI]

of the Market Report: New York ISO. 2010. PJM, State of theMarket Report for PJM: Ancillary Service Markets. 2010Maryland Interconnection (PJM) and Midwest ISO (MISO) all

Kiliccote, Sila

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

Recovery Act Weekly Video: 200 Area Asbestos Removal, U-Ancillary Demolition, 200 West Transfer Building Footings  

ScienceCinema (OSTI)

A weekly update of the Recovery Act at work. Demolition of U-Ancillary that was contaminated with uranium and asbestos as well as removing asbestos from the Steam Generation Plant in the 200 East Area.

None

2012-06-14T23:59:59.000Z

102

Nuclear structure through moment measurements: Exploiting ?-ray detector arrays with ancillary detectors  

SciTech Connect (OSTI)

Experimental methods to measure the magnetic moments of short-lived excited states in beams of rare isotopes are outlined. The emphasis is on the so-called High-Velocity Transient-Field (HVTF) and the Recoil in Vacuum (RIV) methods, and the role of ?-ray detector arrays with ancillary detectors. Insights into the structure of neutron-rich nuclei through such measurements on radioactive beams are discussed. Opportunities for the future development of these techniques, for applications to both stable and radioactive beams, are explored.

Stuchbery, Andrew E. [Department of Nuclear Physics, The Australian National University, Canberra, ACT 0200 (Australia)

2014-08-14T23:59:59.000Z

103

E-Print Network 3.0 - ancillary network nutrient Sample Search...  

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

water qualitynutrient loading. ORNL research evaluating the changes in soil... carbon, soil erosion, energy use, net greenhouse gas emissions, and nutrient loading are simulated...

104

Aggregate Model for Heterogeneous Thermostatically Controlled Loads with Demand Response  

SciTech Connect (OSTI)

Due to the potentially large number of Distributed Energy Resources (DERs) – demand response, distributed generation, distributed storage - that are expected to be deployed, it is impractical to use detailed models of these resources when integrated with the transmission system. Being able to accurately estimate the fast transients caused by demand response is especially important to analyze the stability of the system under different demand response strategies. On the other hand, a less complex model is more amenable to design feedback control strategies for the population of devices to provide ancillary services. The main contribution of this paper is to develop aggregated models for a heterogeneous population of Thermostatic Controlled Loads (TCLs) to accurately capture their collective behavior under demand response and other time varying effects of the system. The aggregated model efficiently includes statistical information of the population and accounts for a second order effect necessary to accurately capture the collective dynamic behavior. The developed aggregated models are validated against simulations of thousands of detailed building models using GridLAB-D (an open source distribution simulation software) under both steady state and severe dynamic conditions caused due to temperature set point changes.

Zhang, Wei; Kalsi, Karanjit; Fuller, Jason C.; Elizondo, Marcelo A.; Chassin, David P.

2012-07-22T23:59:59.000Z

105

Providing Reliability Services through Demand Response: A Prelimnary Evaluation of the Demand Response Capabilities of Alcoa Inc.  

SciTech Connect (OSTI)

Demand response is the largest underutilized reliability resource in North America. Historic demand response programs have focused on reducing overall electricity consumption (increasing efficiency) and shaving peaks but have not typically been used for immediate reliability response. Many of these programs have been successful but demand response remains a limited resource. The Federal Energy Regulatory Commission (FERC) report, 'Assessment of Demand Response and Advanced Metering' (FERC 2006) found that only five percent of customers are on some form of demand response program. Collectively they represent an estimated 37,000 MW of response potential. These programs reduce overall energy consumption, lower green house gas emissions by allowing fossil fuel generators to operate at increased efficiency and reduce stress on the power system during periods of peak loading. As the country continues to restructure energy markets with sophisticated marginal cost models that attempt to minimize total energy costs, the ability of demand response to create meaningful shifts in the supply and demand equations is critical to creating a sustainable and balanced economic response to energy issues. Restructured energy market prices are set by the cost of the next incremental unit of energy, so that as additional generation is brought into the market, the cost for the entire market increases. The benefit of demand response is that it reduces overall demand and shifts the entire market to a lower pricing level. This can be very effective in mitigating price volatility or scarcity pricing as the power system responds to changing demand schedules, loss of large generators, or loss of transmission. As a global producer of alumina, primary aluminum, and fabricated aluminum products, Alcoa Inc., has the capability to provide demand response services through its manufacturing facilities and uniquely through its aluminum smelting facilities. For a typical aluminum smelter, electric power accounts for 30% to 40% of the factory cost of producing primary aluminum. In the continental United States, Alcoa Inc. currently owns and/or operates ten aluminum smelters and many associated fabricating facilities with a combined average load of over 2,600 MW. This presents Alcoa Inc. with a significant opportunity to respond in areas where economic opportunities exist to help mitigate rising energy costs by supplying demand response services into the energy system. This report is organized into seven chapters. The first chapter is the introduction and discusses the intention of this report. The second chapter contains the background. In this chapter, topics include: the motivation for Alcoa to provide demand response; ancillary service definitions; the basics behind aluminum smelting; and a discussion of suggested ancillary services that would be particularly useful for Alcoa to supply. Chapter 3 is concerned with the independent system operator, the Midwest ISO. Here the discussion examines the evolving Midwest ISO market structure including specific definitions, requirements, and necessary components to provide ancillary services. This section is followed by information concerning the Midwest ISO's classifications of demand response parties. Chapter 4 investigates the available opportunities at Alcoa's Warrick facility. Chapter 5 involves an in-depth discussion of the regulation service that Alcoa's Warrick facility can provide and the current interactions with Midwest ISO. Chapter 6 reviews future plans and expectations for Alcoa providing ancillary services into the market. Last, chapter 7, details the conclusion and recommendations of this paper.

Starke, Michael R [ORNL; Kirby, Brendan J [ORNL; Kueck, John D [ORNL; Todd, Duane [Alcoa; Caulfield, Michael [Alcoa; Helms, Brian [Alcoa

2009-02-01T23:59:59.000Z

106

Abstract--This work develops a three-phase unbalanced load flow tool tailored for radial distribution networks based  

E-Print Network [OSTI]

) generators where most of the systems are single phase. New ancillary service such as static reactive power, thermal limits of grid components and power losses in radial MV-LV networks with photovoltaic (PV support by PV inverters can be also merged together with the load flow solution tool and thus, the impact

Teodorescu, Remus

107

16 Load Data Cleansing and Bus Load  

E-Print Network [OSTI]

-to-day operations, system analysis in smart grids, system visualization, system performance reliability, energy..............................................................................................................397 #12;376 Smart Grids The load forecast generally provides annual peak values for the whole system saving, and accuracy in system planning [1­4]. * This work is partly supported by a collaborative

Wang, Ke

108

MIDWEST ISO CO-OPTIMIZATION BASED REAL-TIME DISPATCH AND PRICING OF ENERGY AND ANCILLARY SERVICES  

E-Print Network [OSTI]

day-ahead counterpart, real-time locational marginal prices (LMP) are calculated every fiveMIDWEST ISO CO-OPTIMIZATION BASED REAL-TIME DISPATCH AND PRICING OF ENERGY AND ANCILLARY SERVICES-time dispatch and pricing. The RT SCED formulation at the core of the real-time dispatch and pricing market

Tesfatsion, Leigh

109

Self-aligning biaxial load frame  

DOE Patents [OSTI]

An self-aligning biaxial loading apparatus for use in testing the strength of specimens while maintaining a constant specimen centroid during the loading operation. The self-aligning biaxial loading apparatus consists of a load frame and two load assemblies for imparting two independent perpendicular forces upon a test specimen. The constant test specimen centroid is maintained by providing elements for linear motion of the load frame relative to a fixed crosshead, and by alignment and linear motion elements of one load assembly relative to the load frame.

Ward, Michael B. (Idaho Falls, ID); Epstein, Jonathan S. (Idaho Falls, ID); Lloyd, W. Randolph (Idaho Falls, ID)

1994-01-01T23:59:59.000Z

110

Self-aligning biaxial load frame  

DOE Patents [OSTI]

An self-aligning biaxial loading apparatus for use in testing the strength of specimens while maintaining a constant specimen centroid during the loading operation. The self-aligning biaxial loading apparatus consists of a load frame and two load assemblies for imparting two independent perpendicular forces upon a test specimen. The constant test specimen centroid is maintained by providing elements for linear motion of the load frame relative to a fixed cross head, and by alignment and linear motion elements of one load assembly relative to the load frame. 3 figures.

Ward, M.B.; Epstein, J.S.; Lloyd, W.R.

1994-01-18T23:59:59.000Z

111

Plug Load  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic Theory andVelocityPlatinum-LoadingPlug-Load Sign In

112

System and method employing a minimum distance and a load feature database to identify electric load types of different electric loads  

DOE Patents [OSTI]

A method identifies electric load types of a plurality of different electric loads. The method includes providing a load feature database of a plurality of different electric load types, each of the different electric load types including a first load feature vector having at least four different load features; sensing a voltage signal and a current signal for each of the different electric loads; determining a second load feature vector comprising at least four different load features from the sensed voltage signal and the sensed current signal for a corresponding one of the different electric loads; and identifying by a processor one of the different electric load types by determining a minimum distance of the second load feature vector to the first load feature vector of the different electric load types of the load feature database.

Lu, Bin; Yang, Yi; Sharma, Santosh K; Zambare, Prachi; Madane, Mayura A

2014-12-23T23:59:59.000Z

113

Dynamic load balancing of applications  

DOE Patents [OSTI]

An application-level method for dynamically maintaining global load balance on a parallel computer, particularly on massively parallel MIMD computers. Global load balancing is achieved by overlapping neighborhoods of processors, where each neighborhood performs local load balancing. The method supports a large class of finite element and finite difference based applications and provides an automatic element management system to which applications are easily integrated.

Wheat, Stephen R. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

114

Dynamic load balancing of applications  

DOE Patents [OSTI]

An application-level method for dynamically maintaining global load balance on a parallel computer, particularly on massively parallel MIMD computers is disclosed. Global load balancing is achieved by overlapping neighborhoods of processors, where each neighborhood performs local load balancing. The method supports a large class of finite element and finite difference based applications and provides an automatic element management system to which applications are easily integrated. 13 figs.

Wheat, S.R.

1997-05-13T23:59:59.000Z

115

Field Testing of Automated Demand Response for Integration of Renewable Resources in California's Ancillary Services Market for Regulation Products  

E-Print Network [OSTI]

loads to deliver load following and regulation, withLOAD AND PSEUDO GENERATION PROFILE OF UC MERCED ON AUGUST 16, 2011 5.4 Results from latency tests The following

Kiliccote, Sila

2013-01-01T23:59:59.000Z

116

High-Power Rf Load  

DOE Patents [OSTI]

A compact high-power RF load comprises a series of very low Q resonators, or chokes [16], in a circular waveguide [10]. The sequence of chokes absorb the RF power gradually in a short distance while keeping the bandwidth relatively wide. A polarizer [12] at the input end of the load is provided to convert incoming TE.sub.10 mode signals to circularly polarized TE.sub.11 mode signals. Because the load operates in the circularly polarized mode, the energy is uniformly and efficiently absorbed and the load is more compact than a rectangular load. Using these techniques, a load having a bandwidth of 500 MHz can be produced with an average power dissipation level of 1.5 kW at X-band, and a peak power dissipation of 100 MW. The load can be made from common lossy materials, such as stainless steel, and is less than 15 cm in length. These techniques can also produce loads for use as an alternative to ordinary waveguide loads in small and medium RF accelerators, in radar systems, and in other microwave applications. The design is easily scalable to other RF frequencies and adaptable to the use of other lossy materials.

Tantawi, Sami G. (San Mateo, CA); Vlieks, Arnold E. (Livermore, CA)

1998-09-01T23:59:59.000Z

117

Structural, Spectroscopic, And Theoretical Elucidation of a Redox-Active Pincer-Type Ancillary Applied in Catalysis  

SciTech Connect (OSTI)

Pincer-type ligands are believed to be very robust scaffolds that can support multifarious functionalities as well as highly reactive metal motifs applied in organometallic chemistry, especially in the realm of catalysis. In this paper, we describe the redox and, therefore, noninnocent behavior of a PNP (PNP{sup -} = N[2-P(CHMe{sub 2}){sub 2}-4-methylphenyl]{sub 2}) pincer ancillary bound to nickel. A combination of structural, spectroscopic, and theoretical techniques suggests that this type of framework can house an electron hole when coordinated to Ni(II).

Adhikari, D.; Mossin, S.; Basuli, F.; Huffman, J.C.; Szilagyi, R.K.; Meyer, K.; Mindiola, D.J.

2009-05-11T23:59:59.000Z

118

System and method employing a self-organizing map load feature database to identify electric load types of different electric loads  

SciTech Connect (OSTI)

A method identifies electric load types of a plurality of different electric loads. The method includes providing a self-organizing map load feature database of a plurality of different electric load types and a plurality of neurons, each of the load types corresponding to a number of the neurons; employing a weight vector for each of the neurons; sensing a voltage signal and a current signal for each of the loads; determining a load feature vector including at least four different load features from the sensed voltage signal and the sensed current signal for a corresponding one of the loads; and identifying by a processor one of the load types by relating the load feature vector to the neurons of the database by identifying the weight vector of one of the neurons corresponding to the one of the load types that is a minimal distance to the load feature vector.

Lu, Bin; Harley, Ronald G.; Du, Liang; Yang, Yi; Sharma, Santosh K.; Zambare, Prachi; Madane, Mayura A.

2014-06-17T23:59:59.000Z

119

Wind load reduction for heliostats  

SciTech Connect (OSTI)

This report presents the results of wind-tunnel tests supported through the Solar Energy Research Institute (SERI) by the Office of Solar Thermal Technology of the US Department of Energy as part of the SERI research effort on innovative concentrators. As gravity loads on drive mechanisms are reduced through stretched-membrane technology, the wind-load contribution of the required drive capacity increases in percentage. Reduction of wind loads can provide economy in support structure and heliostat drive. Wind-tunnel tests have been directed at finding methods to reduce wind loads on heliostats. The tests investigated primarily the mean forces, moments, and the possibility of measuring fluctuating forces in anticipation of reducing those forces. A significant increase in ability to predict heliostat wind loads and their reduction within a heliostat field was achieved.

Peterka, J.A.; Hosoya, N.; Bienkiewicz, B.; Cermak, J.E.

1986-05-01T23:59:59.000Z

120

Analysis Methodology for Industrial Load Profiles  

E-Print Network [OSTI]

ANALYSIS METHODOLOGY FOR INDUSTRIAL LOAD PROFILES Thomas W. Reddoch Executive Vice President Eleclrolek Concepts, Inc. Knoxvillc, Tennessee ABSTRACT A methodology is provided for evaluating the impact of various demand-side management... (OSM) options on industrial customers. The basic approach uses customer metered load profile data as a basis for the customer load shape. OSM technologies are represented as load shapes and are used as a basis for altering the customers existing...

Reddoch, T. W.

Note: This page contains sample records for the topic "loads providing ancillary" 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

Technical Assistance to ISO's and Grid Operators For Loads Providing  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of Energy StrainClientDesign &Report TechnicalSHARING KNOWLEDGE .

122

Summary of Mercury Compatibility Issues for the Spallation Neutron Source Target Containment and Ancillary Equipment  

SciTech Connect (OSTI)

The purpose of this document is to summarize the primary results of the Hg compatibility research in support of the SNS target. In the absence of possible synergisms resulting from beam/irradiation effects, wetting of 316L/316LN stainless steel under SNS conditions by the Hg target is expected to be very limited. As a result, significant interactions such as dissolution, mass transfer, and embrittlement affecting general compatibility are not anticipated. A wide range of experiments on 316L/316LN stainless steel, including thermal convection and pumped loops, confirmed low corrosion/penetration rates in Hg up to 305 C and little or no wetting or mass transfer below about 250 C. A variety of standard mechanical tests comparing behavior of 316L in air and Hg revealed limited wetting and no degradation of mechanical properties such as reduced elongation or development of brittle fracture features. Preliminary fatigue tests indicated a negative effect (reduced cycles to failure and intergranular cracking) at very high loads for 316LN, but little or no effect at more modest loading. Annealed 316LN was found to be somewhat susceptible to cavitation-erosion damage, but significant improvement was realized with a kolsterizing surface treatment or coldworking the material. Within the scope of these test conditions, no compatibility-limited operations were identified for type 316L/316LN stainless steel (and variations thereof) as the Hg target containment material. More limited compatibility data on other materials are also reported.

Pawel, SJ

2003-04-08T23:59:59.000Z

123

Reduced Study Load Application Form International Students on Student Visa  

E-Print Network [OSTI]

in a standard load for the following reasons: Continued on next page #12;CRICOS Provider No. 00300K (NTReduced Study Load Application Form International Students on Student Visa CRICOS Provider No. 00300K (NT/VIC) | CRICOS Provider No. 03286A (NSW) Study Load Requirements International students

124

International Conference on Environmental Health and Technology As we rise to the challenge of making a healthier society, the ancillary impact of the  

E-Print Network [OSTI]

International Conference on Environmental Health and Technology 15 - 17th As we rise to the challenge of making a healthier society, the ancillary impact of the economic growth in the country as we make economic advancements. Keeping in view the above agenda the Centre for Environmental Science

Srivastava, Kumar Vaibhav

125

A comparison of automated land cover/use classification methods for a Texas bottomland hardwood system using lidar, spot-5, and ancillary data  

E-Print Network [OSTI]

decisions affecting these disappearing systems. SPOT-5 imagery from 2005 was combined with Light Detection and Ranging (LiDAR) data from 2006 and several ancillary datasets to map a portion of the bottomland hardwood system found in the Sulphur River Basin...

Vernon, Zachary Isaac

2009-05-15T23:59:59.000Z

126

Load controller and method to enhance effective capacity of a photovoltaic power supply using a dynamically determined expected peak loading  

DOE Patents [OSTI]

A load controller and method are provided for maximizing effective capacity of a non-controllable, renewable power supply coupled to a variable electrical load also coupled to a conventional power grid. Effective capacity is enhanced by monitoring power output of the renewable supply and loading, and comparing the loading against the power output and a load adjustment threshold determined from an expected peak loading. A value for a load adjustment parameter is calculated by subtracting the renewable supply output and the load adjustment parameter from the current load. This value is then employed to control the variable load in an amount proportional to the value of the load control parameter when the parameter is within a predefined range. By so controlling the load, the effective capacity of the non-controllable, renewable power supply is increased without any attempt at operational feedback control of the renewable supply.

Perez, Richard

2005-05-03T23:59:59.000Z

127

Coordination and Control of Distributed Energy Resources for Provision of Ancillary Services  

E-Print Network [OSTI]

]. An example is the utilization of power electronics grid interfaces commonly used in distributed generation--This paper discusses the utilization of distributed energy resources on the distribution side of the power to enable the utilization of these distributed resources for provision of grid support services. We provide

Liberzon, Daniel

128

Load Management DSM: Past, Present & Future  

E-Print Network [OSTI]

Load Management has grown in acceptance over the past several decades as a reliable means to provide a demand-side resource of demand capacity. This paper first reviews the significant break-throughs of load management technology then sets the stage...

Gardner, E.

1994-01-01T23:59:59.000Z

129

Steam Load Reduction Guidance Emergency Management Program  

E-Print Network [OSTI]

Steam Load Reduction Guidance Emergency Management Program v October 2014 Steam_Load_Reduction_Guidance_DSRDSR 1.0 PurposeandScope Utilities provides steam to the campus community for space heating, hot water in the steam distribution system or the Central Energy Plant, the preservation of building infrastructure

Pawlowski, Wojtek

130

Load sensing system  

DOE Patents [OSTI]

A load sensing system inexpensively monitors the weight and temperature of stored nuclear material for long periods of time in widely variable environments. The system can include an electrostatic load cell that encodes weight and temperature into a digital signal which is sent to a remote monitor via a coaxial cable. The same cable is used to supply the load cell with power. When multiple load cells are used, vast

Sohns, Carl W. (Oak Ridge, TN); Nodine, Robert N. (Knoxville, TN); Wallace, Steven Allen (Knoxville, TN)

1999-01-01T23:59:59.000Z

131

Loading margin Stable operating  

E-Print Network [OSTI]

Linear approximation at p1 Actual loading margin Loadingmargin Parameter p p1 p2 p3 IEEE Transactions collapse. Linear and quadratic estimates to the variation of the loading margin with respect to any sys power support, wheeling, load model param- eters, line susceptance, and generator dispatch. The accuracy

132

Impact of load type on microgrid stability  

E-Print Network [OSTI]

Microgrids show great promise as a means of integrating distributed generation sources into the public grid distribution system. In order to provide uninterrupted,high quality power to local loads, microgrids must have the ...

Monnin, Jared P

2012-01-01T23:59:59.000Z

133

Gearbox Reliability Collaborative (GRC) Description and Loading  

SciTech Connect (OSTI)

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

Oyague, F.

2011-11-01T23:59:59.000Z

134

NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Ancillary Services in the United  

E-Print Network [OSTI]

/ISOs Market Installed Capacity Miles of Transmission Population PJM 164,895 MW 56,499 51M MISO 146,497 MW 53 · Capacity Markets #12;5 Ancillary Services · Ancillary services can either be cost-based or market April 2013 NREL/PR6A2058554 #12;2 North American Energy Markets Source: ISO/RTO Council #12;3 U.S. RTOs

135

Load regulating expansion fixture  

DOE Patents [OSTI]

A free standing self contained device for bonding ultra thin metallic films, such as 0.001 inch beryllium foils is disclosed. The device will regulate to a predetermined load for solid state bonding when heated to a bonding temperature. The device includes a load regulating feature, whereby the expansion stresses generated for bonding are regulated and self adjusting. The load regulator comprises a pair of friction isolators with a plurality of annealed copper members located therebetween. The device, with the load regulator, will adjust to and maintain a stress level needed to successfully and economically complete a leak tight bond without damaging thin foils or other delicate components. 1 fig.

Wagner, L.M.; Strum, M.J.

1998-12-15T23:59:59.000Z

136

Load regulating expansion fixture  

DOE Patents [OSTI]

A free standing self contained device for bonding ultra thin metallic films, such as 0.001 inch beryllium foils. The device will regulate to a predetermined load for solid state bonding when heated to a bonding temperature. The device includes a load regulating feature, whereby the expansion stresses generated for bonding are regulated and self adjusting. The load regulator comprises a pair of friction isolators with a plurality of annealed copper members located therebetween. The device, with the load regulator, will adjust to and maintain a stress level needed to successfully and economically complete a leak tight bond without damaging thin foils or other delicate components.

Wagner, Lawrence M. (San Jose, CA); Strum, Michael J. (San Jose, CA)

1998-01-01T23:59:59.000Z

137

Load sensing system  

DOE Patents [OSTI]

A load sensing system inexpensively monitors the weight and temperature of stored nuclear material for long periods of time in widely variable environments. The system can include an electrostatic load cell that encodes weight and temperature into a digital signal which is sent to a remote monitor via a coaxial cable. The same cable is used to supply the load cell with power. When multiple load cells are used, vast inventories of stored nuclear material can be continuously monitored and inventoried of minimal cost. 4 figs.

Sohns, C.W.; Nodine, R.N.; Wallace, S.A.

1999-05-04T23:59:59.000Z

138

contingency Nominal loading margin  

E-Print Network [OSTI]

is estimated. First a nose curve is computed by continuation to obtain a nominal loading margin. Then linear and the very fast computation of the linear estimates. Keywords: Power system security, contingency analy- sis formulas derived in [4]. The computations are summarized: 1 A pattern of load increase, generator dispatch

139

Load controller and method to enhance effective capacity of a photovotaic power supply using a dynamically determined expected peak loading  

DOE Patents [OSTI]

A load controller and method are provided for maximizing effective capacity of a non-controllable, renewable power supply coupled to a variable electrical load also coupled to a conventional power grid. Effective capacity is enhanced by monitoring power output of the renewable supply and loading, and comparing the loading against the power output and a load adjustment threshold determined from an expected peak loading. A value for a load adjustment parameter is calculated by subtracting the renewable supply output and the load adjustment parameter from the current load. This value is then employed to control the variable load in an amount proportional to the value of the load control parameter when the parameter is within a predefined range. By so controlling the load, the effective capacity of the non-controllable, renewable power supply is increased without any attempt at operational feedback control of the renewable supply. The expected peak loading of the variable load can be dynamically determined within a defined time interval with reference to variations in the variable load.

Perez, Richard (Delmar, NY)

2003-04-01T23:59:59.000Z

140

Scalable Load Distribution and Load Balancing for Dynamic Parallel Programs  

E-Print Network [OSTI]

shown that the algorithm scales according to the definition of scalability given following. LoadScalable Load Distribution and Load Balancing for Dynamic Parallel Programs E. Berger and J. C of an integrated load distribution-load balancing algorithm which was targeted to be both efficient and scalable

Berger, Emery

Note: This page contains sample records for the topic "loads providing ancillary" 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

Load research manual. Volume 3. Load research for advanced technologies  

SciTech Connect (OSTI)

This three-volume manual presents technical guidelines for electric utility load research. Special attention is given to issues raised by the load data reporting requirements of the Public Utility Regulatory Policies Act of 1978 and to problems faced by smaller utilities that are initiating load research programs. The manual includes guides to load research literature and glossaries of load research and statistical terms. In Volume 3, special load research procedures are presented for solar, wind, and cogeneration technologies.

None

1980-11-01T23:59:59.000Z

142

Load Monitoring CEC/LMTF Load Research Program  

SciTech Connect (OSTI)

This white paper addresses the needs, options, current practices of load monitoring. Recommendations on load monitoring applications and future directions are also presented.

Huang, Zhenyu; Lesieutre, B.; Yang, Steve; Ellis, A.; Meklin, A.; Wong, B.; Gaikwad, A.; Brooks, D.; Hammerstrom, Donald J.; Phillips, John; Kosterev, Dmitry; Hoffman, M.; Ciniglio, O.; Hartwell, R.; Pourbeik, P.; Maitra, A.; Lu, Ning

2007-11-30T23:59:59.000Z

143

Composite Load Model Evaluation  

SciTech Connect (OSTI)

The WECC load modeling task force has dedicated its effort in the past few years to develop a composite load model that can represent behaviors of different end-user components. The modeling structure of the composite load model is recommended by the WECC load modeling task force. GE Energy has implemented this composite load model with a new function CMPLDW in its power system simulation software package, PSLF. For the last several years, Bonneville Power Administration (BPA) has taken the lead and collaborated with GE Energy to develop the new composite load model. Pacific Northwest National Laboratory (PNNL) and BPA joint force and conducted the evaluation of the CMPLDW and test its parameter settings to make sure that: • the model initializes properly, • all the parameter settings are functioning, and • the simulation results are as expected. The PNNL effort focused on testing the CMPLDW in a 4-bus system. An exhaustive testing on each parameter setting has been performed to guarantee each setting works. This report is a summary of the PNNL testing results and conclusions.

Lu, Ning; Qiao, Hong (Amy)

2007-09-30T23:59:59.000Z

144

Load Response Fundamentally Matches Power System Reliability Requirements  

SciTech Connect (OSTI)

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

Kirby, Brendan J [ORNL] [ORNL

2007-01-01T23:59:59.000Z

145

PASSIVE DETECTION OF VEHICLE LOADING  

SciTech Connect (OSTI)

The Digital Imaging and Remote Sensing Laboratory (DIRS) at the Rochester Institute of Technology, along with the Savannah River National Laboratory is investigating passive methods to quantify vehicle loading. The research described in this paper investigates multiple vehicle indicators including brake temperature, tire temperature, engine temperature, acceleration and deceleration rates, engine acoustics, suspension response, tire deformation and vibrational response. Our investigation into these variables includes building and implementing a sensing system for data collection as well as multiple full-scale vehicle tests. The sensing system includes; infrared video cameras, triaxial accelerometers, microphones, video cameras and thermocouples. The full scale testing includes both a medium size dump truck and a tractor-trailer truck on closed courses with loads spanning the full range of the vehicle's capacity. Statistical analysis of the collected data is used to determine the effectiveness of each of the indicators for characterizing the weight of a vehicle. The final sensing system will monitor multiple load indicators and combine the results to achieve a more accurate measurement than any of the indicators could provide alone.

Garrett, A.

2012-01-03T23:59:59.000Z

146

Alaska BIA Providers Conference  

Broader source: Energy.gov [DOE]

The Alaska Bureau of Indian Affairs (BIA) is hosting the 24th Annual BIA Tribal Providers Conference in Anchorage, Alaska, Dec. 1-5, 2014.

147

Reducing Plug Loads in Office Spaces: Hawaii and Guam Energy Improvement Technology Demonstration Project  

SciTech Connect (OSTI)

As part of its overall strategy to meet its energy goals, the Naval Facilities Engineering Command (NAVFAC) partnered with the Department of Energy's National Renewable Energy Laboratory (NREL) to rapidly demonstrate and deploy cost-effective renewable energy and energy efficiency technologies. This project was one of several demonstrations of new or underutilized commercial energy technologies. The common goal was to demonstrate and measure the performance and economic benefit of the system while monitoring any ancillary impacts to related standards of service and operation and maintenance (O&M) practices. In short, demonstrations at naval facilities simultaneously evaluate the benefits and compatibility of the technology with the U.S. Department of Defense (DOD) mission, and with NAVFAC's design, construction, operations, and maintenance practices, in particular. This project demonstrated the performance of commercially available advanced power strips (APSs) for plug load energy reductions in building A4 at Joint Base Pearl Harbor-Hickam (JBPHH), Hawaii.

Sheppy, M.; Metzger, I.; Cutler, D.; Holland, G.; Hanada, A.

2014-01-01T23:59:59.000Z

148

Load Management Made Simple  

E-Print Network [OSTI]

Company have moved to a demand side or load management mode which seeks to influence customers to change electric usage patterns to more efficiently use available generating capacity. Since 1970, the TUEC system peak demand has more than doubled from about...

Schneider, K.

1985-01-01T23:59:59.000Z

149

Cooling load estimation methods  

SciTech Connect (OSTI)

Ongoing research on quantifying the cooling loads in residential buildings, particularly buildings with passive solar heating systems, is described. Correlations are described that permit auxiliary cooling estimates from monthly average insolation and weather data. The objective of the research is to develop a simple analysis method, useful early in design, to estimate the annual cooling energy required of a given building.

McFarland, R.D.

1984-01-01T23:59:59.000Z

150

Providence Newberg Medical Center  

High Performance Buildings Database

Newberg, OR In 2002, Providence Health & Services began planning a new 188,000 square foot medical center in Newberg, Oregon to respond to the growing community's need for accessible health care. Since this was Providence's first new hospital in almost thirty years, its leaders decided to approach the project through innovative planning, design, and construction, including the achievement of lifecycle energy savings and a potential LEED certification. The hospital is comprised of 40 inpatient beds with views out to the surrounding rural landscape or into lushly planted internal courtyards.

151

Hydrogen loaded metal for bridge-foils for enhanced electric gun/slapper detonator operation  

DOE Patents [OSTI]

The invention provides a more efficient electric gun or slapper detonator ich provides a higher velocity flyer by using a bridge foil made of a hydrogen loaded metal.

Osher, John E. (Alamo, CA)

1992-01-01T23:59:59.000Z

152

Extracting Operating Modes from Building Electrical Load Data: Preprint  

SciTech Connect (OSTI)

Empirical techniques for characterizing electrical energy use now play a key role in reducing electricity consumption, particularly miscellaneous electrical loads, in buildings. Identifying device operating modes (mode extraction) creates a better understanding of both device and system behaviors. Using clustering to extract operating modes from electrical load data can provide valuable insights into device behavior and identify opportunities for energy savings. We present a fast and effective heuristic clustering method to identify and extract operating modes in electrical load data.

Frank, S.; Polese, L. G.; Rader, E.; Sheppy, M.; Smith, J.

2012-01-01T23:59:59.000Z

153

Load Management: Opportunity or Calamity?  

E-Print Network [OSTI]

larger now than prior to 1973. Utilities are examining two options which can be termed load management. One option is to control discretionary loads during peak periods. Cycling of residential water heaters or shutting off industrial electric furnaces...

Males, R.; Hassig, N.

1981-01-01T23:59:59.000Z

154

High voltage load resistor array  

DOE Patents [OSTI]

A high voltage resistor comprising an array of a plurality of parallel electrically connected resistor elements each containing a resistive solution, attached at each end thereof to an end plate, and about the circumference of each of the end plates, a corona reduction ring. Each of the resistor elements comprises an insulating tube having an electrode inserted into each end thereof and held in position by one or more hose clamps about the outer periphery of the insulating tube. According to a preferred embodiment, the electrode is fabricated from stainless steel and has a mushroom shape at one end, that inserted into the tube, and a flat end for engagement with the end plates that provides connection of the resistor array and with a load.

Lehmann, Monty Ray (Smithfield, VA)

2005-01-18T23:59:59.000Z

155

Wind load comparison for the ASCE standard 7 and the Hanford site design criteria  

SciTech Connect (OSTI)

This document provides calculations and discussions to compare Hanford Site wind load criteria with the current national standard for wind loads (ASCE 7, 1995). Site criteria uses the 1988 edition ASCE 7.

Giller, R.A., Westinghouse Hanford

1996-07-16T23:59:59.000Z

156

Estimating market potential for reducing customer peak loads through photovoltaics  

SciTech Connect (OSTI)

Past studies have quantified photovoltaics` (PV) peak load matching capability on a utility-wide scale. The purpose of this paper is to estimate the number of utility subloads (e.g., customers, substations) whose peak loads are well matched with solar availability. A simple tool based on the utility scale load-PV match is developed to estimate the market size of customer scale PV applications with high load-PV matches. Illustrative examples of customer owned PV economics are also provided. The authors show that (1) the market size of high load matching PV applications on the subload scale is significant even within utility systems whose load requirements are not particularly well matched with PV output; and (2) the cost of PV as a peak shaving resource for utility customers is approaching competitive levels.

Bryan, J. [Citizens Advisory Panel, Central Islip, NY (United States); Perez, R. [Univ. of New York, Albany, NY (United States). Atmospheric Sciences Research Center

1996-11-01T23:59:59.000Z

157

Mean and peak wind load reduction on heliostats  

SciTech Connect (OSTI)

This report presents the results of wind-tunnel tests supported through the Solar Energy Research Institute (SERI) by the Office of Solar Thermal Technology of the US Department of Energy as part of the SERI research effort on innovative concentrators. As gravity loads on drive mechanisms are reduced through stretched-membrane technology, the wind-load contribution of the required drive capacity increases in percentage. Reduction of wind loads can provide economy in support structure and heliostat drive. Wind-tunnel tests have been directed at finding methods to reduce wind loads on heliostats. The tests investigated both mean and peak forces, and moments. A significant increase in ability to predict heliostat wind loads and their reduction within a heliostat field was achieved. In addition, a preliminary review of wind loads on parabolic dish collectors was conducted, resulting in a recommended research program for these type collectors. 42 refs., 38 figs., 1 tab.

Peterka, J.A.; Tan, L.; Bienkiewcz, B.; Cermak, J.E.

1987-09-01T23:59:59.000Z

158

Independent review of estimated load reductions for PJM's small customer load response pilot project  

SciTech Connect (OSTI)

This study describes the results of a low-cost approach used to measure reported load reductions from a residential electric water heater (EWH) load control program operated as part of PJM Interconnection's Demand Response small customer pilot program. Lawrence Berkeley National Laboratory (LBNL) conducted this independent review of the engineering estimates for EWH load control reported by a Curtailment Service Provider (CSP) at PJM's request. LBNL employed low-cost measurement and verification (M&V) approaches that utilized existing interval metering equipment to monitor results for a series of load control tests. The CSP collected hourly load data for two substations and several hundred households over a six-week period in October and November 2003. During this time period, the CSP operated its electric water heater load control program during pre-specified test periods in the morning, afternoon and early evening. LBNL then analyzed substation and premise-level data from these tests in order to verify the diversified demand reductions claimed by the CSP for customers participating in the EWH load control program. We found that the observed load reductions for the premise-level data aggregated over all households in the two participating electric cooperatives were, respectively, 40 percent-60 percent less and 3 percent less-10 percent higher than the estimated diversified demand reduction values assumed by the CSP, depending on whether observed or normalized results are considered. We also analyzed sub-station level data and found that the observed load reductions during the test periods were significantly lower than expected, although confounding influences and operational problems signifiogram during pre-specified test periods in the morning, afternoon and early evening. LBNL then analyzed substation and premise-level data from these tests in order to verify the diversified demand reductions claimed by the CSP for customers participating in the EWH load control program. We found that the observed load reductions for the premise-level data aggregated over all households in the two participating electric cooperatives were, respectively, 40 percent-60 percent less and 3 percent less-10 percent higher than the estimated diversified demand reduction values assumed by the CSP, depending on whether observed or normalized results are considered. We also analyzed sub-station level data and found that the observed load reductions during the test periods were significantly lower than expected, although confounding influences and operational problems significantly limit our ability to differentiate between control-related and non-control related differences in substation-level load shape data. The usefulness and accuracy of the results were hampered by operational problems encountered during the measurement period as well as in sufficient number of load research grade interval meters at one cooperative. Given the larger sample size at one electric cooperative and more statistically-robust results, there is some basis to suggest that the Adjusted Diversified Demand Factor (ADDF) values used by the CSP somewhat over-state the actual load reductions. Given the results and limitations of the M&V approach as implemented, we suggest several options for PJM to consider: (1) require load aggregators participating in ISODR programs to utilize formal PURPA-compliant load research samples in their M&V plans, and (2) continue developing lower cost M&V approaches for mass market load control programs that incorporate suggested improvements described in this study.

Heffner, G.; Moezzi, M.; Goldman, C.

2004-06-01T23:59:59.000Z

159

Load responsive multilayer insulation performance testing  

SciTech Connect (OSTI)

Cryogenic insulation designed to operate at various pressures from one atmosphere to vacuum, with high thermal performance and light weight, is needed for cryogenically fueled space launch vehicles and aircraft. Multilayer insulation (MLI) performs well in a high vacuum, but the required vacuum shell for use in the atmosphere is heavy. Spray-on foam insulation (SOFI) is often used in these systems because of its light weight, but can have a higher heat flux than desired. We report on the continued development of Load Responsive Multilayer Insulation (LRMLI), an advanced thermal insulation system that uses dynamic beam discrete spacers that provide high thermal performance both in atmosphere and vacuum. LRMLI consists of layers of thermal radiation barriers separated and supported by micromolded polymer spacers. The spacers have low thermal conductance, and self-support a thin, lightweight vacuum shell that provides internal high vacuum in the insulation. The dynamic load responsive spacers compress to support the external load of a vacuum shell in one atmosphere, and decompress under reduced atmospheric pressure for lower heat leak. Structural load testing was performed on the spacers with various configurations. LRMLI was installed on a 400 liter tank and boil off testing with liquid nitrogen performed at various chamber pressures from one atmosphere to high vacuum. Testing was also performed with an MLI blanket on the outside of the LRMLI.

Dye, S.; Kopelove, A. [Quest Thermal Group, 6452 Fig Street Suite A, Arvada, CO 80004 (United States); Mills, G. L. [Ball Aerospace and Technologies Corp, 1600 Commerce Street, Boulder, CO 80301 (United States)

2014-01-29T23:59:59.000Z

160

Design-Load Basis for LANL Structures, Systems, and Components  

SciTech Connect (OSTI)

This document supports the recommendations in the Los Alamos National Laboratory (LANL) Engineering Standard Manual (ESM), Chapter 5--Structural providing the basis for the loads, analysis procedures, and codes to be used in the ESM. It also provides the justification for eliminating the loads to be considered in design, and evidence that the design basis loads are appropriate and consistent with the graded approach required by the Department of Energy (DOE) Code of Federal Regulation Nuclear Safety Management, 10, Part 830. This document focuses on (1) the primary and secondary natural phenomena hazards listed in DOE-G-420.1-2, Appendix C, (2) additional loads not related to natural phenomena hazards, and (3) the design loads on structures during construction.

I. Cuesta

2004-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

Shipboard applications of non-intrusive load monitoring  

E-Print Network [OSTI]

The Non-Intrusive Load Monitor (NILM) provides a method of measuring component performance and source power quality through a single point of entry in the power distribution system. A study was performed utilizing the NILM ...

Ramsey, Jack S

2004-01-01T23:59:59.000Z

162

Adaptive load control of microgrids with non-dispatchable generation  

E-Print Network [OSTI]

Intelligent appliances have a great potential to provide energy storage and load shedding for power grids. Microgrids are simulated with high levels of wind energy penetration. Frequency-adaptive intelligent appliances are ...

Brokish, Kevin Martin

2009-01-01T23:59:59.000Z

163

A framework for non-intrusive load monitoring and diagnostics  

E-Print Network [OSTI]

The widespread use of electrical and electromechanical systems places increasing demands on monitoring and diagnostic techniques. The non-intrusive load monitor (NILM) provides a low-cost, low-maintenance way to perform ...

Paris, James, Ph. D. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z

164

MEASUREMENT OF WASTE LOADING IN SALTSTONE  

SciTech Connect (OSTI)

One of the goals of the Saltstone variability study is to identify the operational and compositional variables that control or influence the important processing and performance properties of Saltstone grout mixtures. One of those properties of importance is the Waste Loading (WL) of the decontaminated salt solution (DSS) in the Saltstone waste form. Waste loading is a measure of the amount of waste that can be incorporated within a waste form. The value of the Saltstone waste loading ultimately determines the number of vaults that will be required to disposition all of the DSS. In this report, the waste loading is defined as the volume in milliliters of DSS per liter of Saltstone waste form. The two most important parameters that determine waste loading for Saltstone are water to cementitious material (w/cm) ratio and the cured grout density. Data are provided that show the dependence of waste loading on the w/cm ratio for a fixed DSS composition using the current premix material (45% Blast Furnace Slag (BFS), 45% Fly Ash (FA) and 10% Ordinary Portland Cement (OPC)). The impact of cured grout density on waste loading was also demonstrated. Mixes (at 0.60 w/cm) made with a Modular Caustic side extraction Unit (MCU) simulant and either OPC or BFS have higher cured grout densities than mixes made with premix and increase the WL to 709 mL/L for the OPC mix and 689 mL/L for the BFS mix versus the value of 653 mL/L for MCU in premix at 0.60 w/cm ratio. Bleed liquid reduces the waste loading and lowers the effective w/cm ratio of Saltstone. A method is presented (and will be used in future tasks) for correcting the waste loading and the w/cm ratio of the as-batched mixes in those cases where bleed liquid is present. For example, the Deliquification, Dissolution and Adjustment (DDA) mix at an as-batched 0.60 w/cm ratio, when corrected for % bleed, gives a mix with a 0.55 w/cm ratio and a WL that has been reduced from 662 to 625 mL/L. An example is provided that demonstrated the quantitative impact of WL on the number of cells (each Saltstone vault contains two cells) required to disposition all of the {approx}100 million gallons of DSS available in the tanks. This calculation revealed that the number of cells required over the range of 0.48 to 0.62 w/cm ratio (equivalent to a WL range of 591 to 666 mL/L) varies from 65 to 57 cells (33 to 29 vaults). The intent of this oversimplified example was to show the range of variation in vaults expected due to w/cm ratio rather than to estimate the actual number of vaults required. There is a tradeoff between the waste loading and the processing and performance properties of Saltstone. The performance properties improve in general as the w/cm ratio decreases whereas the waste loading is reduced at lower w/cm ratios resulting in a larger number of Saltstone vaults. The final performance and processing requirements of Saltstone will determine the maximum waste loading achievable.

Harbour, J; Vickie Williams, V

2008-07-18T23:59:59.000Z

165

2006 Pacific Northwest Loads and Resources Study.  

SciTech Connect (OSTI)

The Pacific Northwest Loads and Resources Study (White Book), which is published annually by the Bonneville Power Administration (BPA), establishes one of the planning bases for supplying electricity to customers. The White Book contains projections of regional and Federal system load and resource capabilities, along with relevant definitions and explanations. The White Book also contains information obtained from formalized resource planning reports and data submittals including those from individual utilities, the Northwest Power and Conservation Council (Council), and the Pacific Northwest Utilities Conference Committee (PNUCC). The White Book is not an operational planning guide, nor is it used for determining BPA revenues, although the database that generates the data for the White Book analysis contributes to the development of BPA's inventory and ratemaking processes. Operation of the Federal Columbia River Power System (FCRPS) is based on a set of criteria different from that used for resource planning decisions. Operational planning is dependent upon real-time or near-term knowledge of system conditions that include expectations of river flows and runoff, market opportunities, availability of reservoir storage, energy exchanges, and other factors affecting the dynamics of operating a power system. The load resource balance of both the Federal system and the region is determined by comparing resource availability to an expected level of total retail electricity consumption. Resources include projected energy capability plus contract purchases. Loads include a forecast of retail obligations plus contract obligations. Surplus energy is available when resources are greater than loads. This surplus energy could be marketed to increase revenues. Energy deficits occur when resources are less than loads. These energy deficits will be met by any combination of the following: better-than-critical water conditions, demand-side management and conservation programs, permanent loss of loads due to economic conditions or closures, additional contract purchases, and/or the addition of new generating resources. This study incorporates information on Pacific Northwest (PNW) regional retail loads, contract obligations, and contract resources. This loads and resources analysis simulates the operation of the power system in the PNW. The simulated hydro operation incorporates plant characteristics, streamflows, and non-power requirements from the current Pacific Northwest Coordination Agreement (PNCA). Additional resource capability estimates were provided by BPA, PNW Federal agency, public agency, cooperative, U.S. Bureau of Reclamation (USBR), and investor-owned utility (IOU) customers furnished through annual PNUCC data submittals for 2005 and/or direct submittals to BPA. The 2006 White Book is presented in two documents: (1) this summary document of Federal system and PNW region loads and resources, and (2) a technical appendix which presents regional loads, grouped by major PNW utility categories, and detailed contract and resource information. The technical appendix is available only in electronic form. Individual customer information for marketer contracts is not detailed due to confidentiality agreements. The 2006 White Book analysis updates the 2004 White Book. This analysis shows projections of the Federal system and region's yearly average annual energy consumption and resource availability for the study period, OY 2007-2016. The study also presents projections of Federal system and region expected 1-hour monthly peak demand, monthly energy demand, monthly 1-hour peak generating capability, and monthly energy generation for OY 2007, 2011, and 2016. BPA is investigating a new approach in capacity planning depicting the monthly Federal system 120-hour peak generating capability and 120-hour peak surplus/deficit for OY 2007, 2011, and 2016. This document analyzes the PNW's projected loads and available generating resources in two parts: (1) the loads and resources of the Federal system, for which BPA is the marketing agency;

United States. Bonneville Power Administration.

2006-03-01T23:59:59.000Z

166

Loading and pre-loading processes generate a distinct siRNA population in Tetrahymena  

SciTech Connect (OSTI)

Highlights: •The Tetrahymena Argonaute protein Twi1p binds to ?28–30-nt siRNAs called scnRNAs. •The size of scnRNAs is determined during a pre-loading process. •The 5? uracil bias of scnRNAs is attributed to pre-loading and loading processes. •The thermodynamic asymmetry of scnRNA duplex doesnot affect the guide strand decision. •scnRNAs may be produced non-sequentially from dsRNA substrates by Dicer. -- Abstract: The various properties of small RNAs, such as length, terminal nucleotide, thermodynamic asymmetry and duplex mismatches, can impact their sorting into different Argonaute proteins in diverse eukaryotes. The developmentally regulated 26- to 32-nt siRNAs (scnRNAs) are loaded to the Argonaute protein Twi1p and display a strong bias for uracil at the 5? end. In this study, we used deep sequencing to analyze loaded and unloaded populations of scnRNAs. We show that the size of the scnRNA is determined during a pre-loading process, whereas their 5? uracil bias is attributed to both pre-loading and loading processes. We also demonstrate that scnRNAs have a strong bias for adenine at the third base from the 3? terminus, suggesting that most scnRNAs are direct Dicer products. Furthermore, we show that the thermodynamic asymmetry of the scnRNA duplex does not affect the guide and passenger strand decision. Finally, we show that scnRNAs frequently have templated uracil at the last base without a strong bias for adenine at the second base indicating non-sequential production of scnRNAs from substrates. These findings provide a biochemical basis for the varying attributes of scnRNAs, which should help improve our understanding of the production and turnover of scnRNAs in vivo.

Mochizuki, Kazufumi, E-mail: kazufumi.mochizuki@imba.oeaw.ac.at; Kurth, Henriette M.

2013-07-05T23:59:59.000Z

167

Online Load Balancing for Related Machines  

E-Print Network [OSTI]

of entire schedule s as follows: load(s; i) = 1 v i X s(j)=i p j ; Load(s) = max i load(s; i) It is easyOn­line Load Balancing for Related Machines Piotr Berman \\Lambda Moses Charikar y Marek Karpinski z­line load balancing was studied extensively over the years (cf., e.g., [7], [3], [4], and [2

Karpinski, Marek

168

FINAL PROJECT REPORT LOAD MODELING TRANSMISSION RESEARCH  

E-Print Network [OSTI]

components such as power sources, loads,  transformers and components such as power sources, loads,  transformers and 

Lesieutre, Bernard

2013-01-01T23:59:59.000Z

169

Demand Response: Load Management Programs  

E-Print Network [OSTI]

CenterPoint Load Management Programs CATEE Conference October, 2012 Agenda Outline I. General Demand Response Definition II. General Demand Response Program Rules III. CenterPoint Commercial Program IV. CenterPoint Residential Programs... V. Residential Discussion Points Demand Response Definition of load management per energy efficiency rule 25.181: ? Load control activities that result in a reduction in peak demand, or a shifting of energy usage from a peak to an off...

Simon, J.

2012-01-01T23:59:59.000Z

170

Advanced Reactors Transition Program Resource Loaded Schedule  

SciTech Connect (OSTI)

The Advanced Reactors Transition (ART) Resource Loaded Schedule (RLS) provides a cost and schedule baseline for managing the project elements within the ART Program. The Fast Flux Test Facility (FFTF) activities are delineated through the end of FY 2000, assuming continued standby. The Nuclear Energy (NE) Legacies and Plutonium Recycle Test Reactor (PRTR) activities are delineated through the end of the deactivation process. This document reflects the 1 Oct 1999 baseline.

BOWEN, W.W.

1999-11-08T23:59:59.000Z

171

Composition containing aerogel substrate loaded with tritium  

DOE Patents [OSTI]

The invention provides a process for loading an aerogel substrate with tritium and the resultant compositions. According to the process, an aerogel substrate is hydrolyzed so that surface OH groups are formed. The hydrolyzed aerogel is then subjected to tritium exchange employing, for example, a tritium-containing gas, whereby tritium atoms replace H atoms of surface OH groups. OH and/or CH groups of residual alcohol present in the aerogel may also undergo tritium exchange.

Ashley, Carol S. (Albuquerque, NM); Brinker, C. Jeffrey (Albuquerque, NM); Ellefson, Robert E. (Centerville, OH); Gill, John T. (Miamisburg, OH); Reed, Scott (Albuquerque, NM); Walko, Robert J. (Albuquerque, NM)

1992-01-01T23:59:59.000Z

172

Hybrid Solar Lighting Provides Energy Savings and Reduces Waste Heat  

SciTech Connect (OSTI)

ABSTRACT Artificial lighting is the largest component of electricity use in commercial U.S. buildings. Hybrid solar lighting (HSL) provides an exciting new means of reducing energy consumption while also delivering significant ancillary benefits associated with natural lighting in buildings. As more than half of all federal facilities are in the Sunbelt region (defined as having an average direct solar radiation of greater than 4 kWh/m2/day) and as more than half of all square footage available in federal buildings is also in the Sunbelt, HSL is an excellent technology fit for federal facilities. The HSL technology uses a rooftop, 4-ft-wide dish and secondary mirror that track the sun throughout the day (Fig. 1). The collector system focuses the sunlight onto 127 optical fibers. The fibers serve as flexible light pipes and are connected to hybrid light fixtures that have special diffusion rods that spread out the light in all directions. One collector powers about eight hybrid light fixtures-which can illuminate about 1,000 square feet. The system tracks at 0.1 accuracy, required by the two-mirror geometry to keep the focused beam on the fiber bundle. When sunlight is plentiful, the optical fibers in the luminaires provide all or most of the light needed in an area. During times of little or no sunlight, a sensor controls the intensity of the artificial lamps to maintain a desired illumination level. Unlike conventional electric lamps, the natural light produces little to no waste heat and is cool to the touch. This is because the system's solar collector removes the infrared light-the part of the spectrum that generates a lot of the heat in conventional bulbs-from the sunlight.

Lapsa, Melissa Voss [ORNL; Maxey, L Curt [ORNL; Earl, Dennis Duncan [ORNL; Beshears, David L [ORNL; Ward, Christina D [ORNL; Parks, James Edgar [ORNL

2006-01-01T23:59:59.000Z

173

Probability of Potential Multi-Canister Overpack Loading System Drop of Proof Load in the K West Basin South Loadout Pit  

SciTech Connect (OSTI)

This document presents the results of a probabilistic analysis of the potential for load drop during the load test of the K West Basin South Loadout Pit Gantry. The calculations are in support of the cask loading system (CLS) subproject load test of the gantry. The purpose of this calculation note is to document the probabilistic calculation of the per lift potential for drop of a test load by the Multi-Canister Overpack (MCO) Loading System (MLS) during load testing at the K West Basin south loadout pit. The MLS subproject needs to load test the MLS in the K West Basin south loadout pit. To perform this test, a basket mockup weighing approximately 4,500 lb (125% of a fully loaded MCO basket accounting for water displacement) needs to be used for one or more load tests. The test load will comprise a standard basket lifting attachment with several ring-shaped steel segments to provide the required weight. The test load will exceed the K Basin Safety Analysis Report (WHC-SD-WM-SAR-062) (SAR) allowances for load drop in the K West Basin south loadout pit. This probabilistic calculation will be used as part of the basis for seeking U.S. Department of Energy approval to use an MLS test weight that exceeds SAR allowances.

SHULTZ, M.V.

2000-01-20T23:59:59.000Z

174

Spring loaded locator pin assembly  

DOE Patents [OSTI]

This invention deals with spring loaded locator pins. Locator pins are sometimes referred to as captured pins. This is a mechanism which locks two items together with the pin that is spring loaded so that it drops into a locator hole on the work piece.

Groll, Todd A. (Idaho Falls, ID); White, James P. (Pocatelo, ID)

1998-01-01T23:59:59.000Z

175

Spring loaded locator pin assembly  

DOE Patents [OSTI]

This invention deals with spring loaded locator pins. Locator pins are sometimes referred to as captured pins. This is a mechanism which locks two items together with the pin that is spring loaded so that it drops into a locator hole on the work piece. 5 figs.

Groll, T.A.; White, J.P.

1998-03-03T23:59:59.000Z

176

Load Forecasting of Supermarket Refrigeration  

E-Print Network [OSTI]

energy system. Observed refrigeration load and local ambient temperature from a Danish su- permarket renewable energy, is increasing, therefore a flexible energy system is needed. In the present ThesisLoad Forecasting of Supermarket Refrigeration Lisa Buth Rasmussen Kongens Lyngby 2013 M.Sc.-2013

177

SLUDGE TREATMENT PROJECT COST COMPARISON BETWEEN HYDRAULIC LOADING AND SMALL CANISTER LOADING CONCEPTS  

SciTech Connect (OSTI)

The Sludge Treatment Project (STP) is considering two different concepts for the retrieval, loading, transport and interim storage of the K Basin sludge. The two design concepts under consideration are: (1) Hydraulic Loading Concept - In the hydraulic loading concept, the sludge is retrieved from the Engineered Containers directly into the Sludge Transport and Storage Container (STSC) while located in the STS cask in the modified KW Basin Annex. The sludge is loaded via a series of transfer, settle, decant, and filtration return steps until the STSC sludge transportation limits are met. The STSC is then transported to T Plant and placed in storage arrays in the T Plant canyon cells for interim storage. (2) Small Canister Concept - In the small canister concept, the sludge is transferred from the Engineered Containers (ECs) into a settling vessel. After settling and decanting, the sludge is loaded underwater into small canisters. The small canisters are then transferred to the existing Fuel Transport System (FTS) where they are loaded underwater into the FTS Shielded Transfer Cask (STC). The STC is raised from the basin and placed into the Cask Transfer Overpack (CTO), loaded onto the trailer in the KW Basin Annex for transport to T Plant. At T Plant, the CTO is removed from the transport trailer and placed on the canyon deck. The CTO and STC are opened and the small canisters are removed using the canyon crane and placed into an STSC. The STSC is closed, and placed in storage arrays in the T Plant canyon cells for interim storage. The purpose of the cost estimate is to provide a comparison of the two concepts described.

GEUTHER J; CONRAD EA; RHOADARMER D

2009-08-24T23:59:59.000Z

178

Electrical and Production Load Factors  

E-Print Network [OSTI]

, Texas Abstract Load factors and operating hours of small and medium-sized industrial plants are analyzed to classify shift-work patterns and develop energy conservation diagnostic tools. This paper discusses two types of electric load factors... for each shift classification within major industry groups. The load factor based on billing hours (ELF) increases with operating hours from about 0.4 for a nominal one shift operation, to about 0.7 for around-the-clock operation. On the other hand...

Sen, T.; Heffington, W. M.

179

2004 Pacific Northwest Loads and Resources Study.  

SciTech Connect (OSTI)

The Pacific Northwest Loads and Resources Study (White Book), which is published annually by the Bonneville Power Administration (BPA), establishes one of the planning bases for supplying electricity to customers. The White Book contains projections of regional and Federal system load and resource capabilities, along with relevant definitions and explanations. The White Book also contains information obtained from formalized resource planning reports and data submittals including those from individual utilities, the Northwest Power and Conservation Council (Council), and the Pacific Northwest Utilities Conference Committee (PNUCC). The White Book is not an operational planning guide, nor is it used for determining BPA revenues, although the database that generates the data for the White Book analysis contributes to the development of BPA's inventory and ratemaking processes. Operation of the Federal Columbia River Power System (FCRPS) is based on a set of criteria different from that used for resource planning decisions. Operational planning is dependent upon real-time or near-term knowledge of system conditions that include expectations of river flows and runoff, market opportunities, availability of reservoir storage, energy exchanges, and other factors affecting the dynamics of operating a power system. The load resource balance of BPA and/or the region is determined by comparing resource availability to an expected level of total retail electricity consumption. Resources include projected energy capability plus contract purchases. Loads include a forecast of retail obligations plus contract obligations. Surplus energy is available when resources are greater than loads. This energy could be marketed to increase revenues. Energy deficits occur when resources are less than loads. These deficits could be met by any combination of the following: better-than-critical water conditions, demand-side management and conservation programs, permanent loss of loads due to economic conditions or closures, additional contract purchases, and/or the addition of new generating resources. The loads and resources analysis in this study simulates the operation of the power system under the current Pacific Northwest Coordination Agreement (PNCA). The PNCA defines the planning and operation of seventeen U.S. Pacific Northwest utilities and other parties with generating facilities within the region's hydroelectric (hydro) system. The hydroregulation study used for the 2004 White Book incorporates measures from the National Oceanographic and Atmospheric Administration Fisheries (NOAA Fisheries) Biological Opinion dated December 2000, and the U.S. Fish and Wildlife Service's 2000 Biological Opinion (2000 FCRPS BiOps) for the Snake River and Columbia River projects. These measures include: (1) Increased flow augmentation for juvenile fish migrations in the Snake and Columbia rivers in the spring and summer; (2) Mandatory spill requirements at the Lower Snake and Columbia dams to provide for non-turbine passage routes for juvenile fish migrants; and (3) Additional flows for Kootenai River white sturgeon in the spring; The hydroregulation criteria for this analysis includes the following: (1) Detailed Operation Plan operation for Treaty reservoirs for Operating Year (OY) 2004; (2) PNCA planning criteria for OY 2004; and (3) Juvenile fish bypass spill levels for 2000 FCRPS BiOps implementation. The 2004 White Book is presented in two documents: (1) this summary document of Federal system and PNW region loads and resources, and (2) a technical appendix which presents regional loads, grouped by major PNW utility categories, and detailed contract and resource information. The technical appendix is available only in electronic form. Individual customer information for marketer contracts is not detailed due to confidentiality agreements. The 2004 White Book analysis updates the 2003 White Book. This analysis projects the yearly average energy consumption and resource availability for the study period, OY 2006 through 2015. The study shows the Federal s

United States. Bonneville Power Administration.

2004-12-01T23:59:59.000Z

180

2003 Pacific Northwest Loads and Resources Study.  

SciTech Connect (OSTI)

The Pacific Northwest Loads and Resources Study (White Book), which is published annually by the Bonneville Power Administration (BPA), establishes one of the planning bases for supplying electricity to customers. The White Book contains projections of regional and Federal system load and resource capabilities, along with relevant definitions and explanations. The White Book also contains information obtained from formalized resource planning reports and data submittals including those from individual utilities, the Northwest Power and Conservation Council (Council), and the Pacific Northwest Utilities Conference Committee (PNUCC). The White Book is not an operational planning guide, nor is it used for determining BPA revenues, although the database that generates the data for the White Book analysis contributes to the development of BPA's inventory and ratemaking processes. Operation of the Federal Columbia River Power System (FCRPS) is based on a set of criteria different from that used for resource planning decisions. Operational planning is dependent upon real-time or near-term knowledge of system conditions that include expectations of river flows and runoff, market opportunities, availability of reservoir storage, energy exchanges, and other factors affecting the dynamics of operating a power system. In this loads and resources study, resource availability is compared to an expected level of total retail electricity consumption. The forecasted annual energy electricity retail load plus contract obligations are subtracted from the sum of the projected annual energy capability of existing resources and contract purchases to determine whether BPA and/or the region will be surplus or deficit. Surplus energy is available when resources are greater than loads. This energy could be marketed to increase revenues. Deficits occur when resources are less than loads. Energy deficits could be met by any combination of the following: better-than-critical water conditions, demand-side management and conservation programs, permanent loss of a load (i.e., due to economic conditions or closures), additional contract purchases, and/or new generating resources. The loads and resources analysis in this study simulates the operation of the power system under the Pacific Northwest Coordination Agreement (PNCA). The PNCA defines the planning and operation of seventeen U.S. Pacific Northwest utilities and other parties with generating facilities within the region's hydroelectric (hydro) system. The hydroregulation study used for the 2003 White Book incorporates measures from the National Oceanographic and Atmospheric Administration Fisheries (NOAA Fisheries) Biological Opinion dated December 2000, and the U.S. Fish and Wildlife Service's 2000 Biological Opinion (2000 FCRPS BiOps) for the Snake River and Columbia River projects. These measures include: (1) Increased flow augmentation for juvenile fish migrations in the Snake and Columbia rivers in the spring and summer; (2) Mandatory spill requirements at the Lower Snake and Columbia dams to provide for non-turbine passage routes for juvenile fish migrants; and (3) Additional flows for Kootenai River white sturgeon in the spring. The hydroregulation criteria for this analysis includes: an updated Detailed Operation Plan for Treaty reservoirs for Operating Year (OY) 2004, updated PNCA planning criteria for OY 2003, and revised juvenile fish bypass spill levels for 2000 FCRPS BiOps implementation. The 2003 White Book is presented in two documents: (1) this summary document of Federal system and PNW region loads and resources, and (2) a technical appendix which presents regional loads, grouped by major PNW utility categories, and detailed contract and resource information. The technical appendix is available only in electronic form. Individual customer information regarding marketer contracts is not detailed due to confidentiality agreements. The 2003 White Book analysis updates the December 2002 White Book. This analysis projects the yearly average energy consumption and resource availability

United States. Bonneville Power Administration.

2003-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

Nitrogen Loading and Attenuation in the West Falmouth Harbor Watershed  

E-Print Network [OSTI]

in nitrogen loading due to the opening of the wastewater treatment plant and increased septic inputs Wastewater Treatment Plant (WWTP) and septic tanks arrive in the form of plumes of higher nitrogen. The treatment plant provides secondary treatment to the incoming wastewater but is not designed to provide

Vallino, Joseph J.

182

Sandia Wind Turbine Loads Database  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The Sandia Wind Turbine Loads Database is divided into six files, each corresponding to approximately 16 years of simulation. The files are text files with data in columnar format. The 424MB zipped file containing six data files can be downloaded by the public. The files simulate 10-minute maximum loads for the NREL 5MW wind turbine. The details of the loads simulations can be found in the paper: “Decades of Wind Turbine Loads Simulations”, M. Barone, J. Paquette, B. Resor, and L. Manuel, AIAA2012-1288 (3.69MB PDF). Note that the site-average wind speed is 10 m/s (class I-B), not the 8.5 m/s reported in the paper.

183

Building load control and optimization  

E-Print Network [OSTI]

Researchers and practitioners have proposed a variety of solutions to reduce electricity consumption and curtail peak demand. This research focuses on load control by improving the operations in existing building HVAC ...

Xing, Hai-Yun Helen, 1976-

2004-01-01T23:59:59.000Z

184

Ancillary service details: Voltage control  

SciTech Connect (OSTI)

Voltage control is accomplished by managing reactive power on an alternating-current power system. Reactive power can be produced and absorbed by both generation and transmission equipment. Reactive-power devices differ substantially in the magnitude and speed of response and in their capital costs. System operators, transmission owners, generators, customers, power marketers, and government regulators need to pay close attention to voltage control as they restructure the U.S. electricity industry. Voltage control can affect reliability and commerce in three ways: (1) Voltages must be maintained within an acceptable range for both customer and power-system equipment to function properly. (2) The movement of reactive power consumes transmission resources, which limits the ability to move real power and worsens congestion. (3) The movement of reactive power results in real-power losses. When generators are required to supply excessive amounts of reactive power, their real-power production must be curtailed. These opportunity costs are not currently compensated for in most regions. Current tariffs are based on embedded costs. These embedded-cost tariffs average about $0.51/MWh, equivalent to $1.5 billion annually for the United States as a whole. Although this cost is low when compared with the cost of energy, it still aggregates to a significant amount of money. This report takes a basic look at why the power system requires reactive power (an appendix explains the fundamentals of real and reactive power). The report then examines the various types of generation and transmission resources used to supply reactive power and to control voltage. Finally it discusses how these resources are deployed and paid for in several reliability regions around the country. As the U.S. electricity industry is restructured, the generation, transmission, and system-control equipment and functions that maintain voltages within the appropriate ranges are being deintegrated.

Kirby, B.; Hirst, E.

1997-12-01T23:59:59.000Z

185

LANSCE | Lujan Center | Ancillary Equipment  

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

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

186

Spring loaded thermocouple module  

DOE Patents [OSTI]

A thermocouple arrangement is provided for mounting in a blind hole of a specimen. The thermocouple arrangement includes a cup-like holder member, which receives an elongated thermal insulator, one end of which is seated at an end wall of the holder. A pair of thermocouple wires, threaded through passageways in the insulator, extend beyond the insulator member, terminating in free ends which are joined together in a spherical weld bead. A spring, held captive within the holder, applies a bias force to the weld bead, through the insulator member. The outside surface of the holder is threaded for engagement with the blind hole of the specimen. When the thermocouple is installed in the specimen, the spherical contact surface of the weld bead is held in contact with the end wall of the blind hole, with a predetermined bias force.

McKelvey, Thomas E. (Solana Beach, CA); Guarnieri, Joseph J. (San Diego, CA)

1985-01-01T23:59:59.000Z

187

Spring loaded thermocouple module  

DOE Patents [OSTI]

A thermocouple arrangement is provided for mounting in a blind hole of a specimen. The thermocouple arrangement includes a cup-like holder member, which receives an elongated thermal insulator, one end of which is seated at an end wall of the holder. A pair of thermocouple wires, threaded through passageways in the insulator, extend beyond the insulator member, terminating in free ends which are joined together in a spherical weld bead. A spring, held captive within the holder, applies a bias force to the weld bead, through the insulator member. The outside surface of the holder is threaded for engagement with the blind hole of the specimen. When the thermocouple is installed in the specimen, the spherical contact surface of the weld bead is held in contact with the end wall of the blind hole, with a predetermined bias force.

McKelvey, T.E.; Guarnieri, J.J.

1984-03-13T23:59:59.000Z

188

Cooling load design tool for UFAD systems.  

E-Print Network [OSTI]

Underfloor Air Distribution (UFAD) Design Guide. Atlanta:Load Design Tool for Underfloor Air Distribution Systems. ”for design cooling loads in underfloor air distribution (

Bauman, Fred; Schiavon, Stefano; Webster, Tom; Lee, Kwang Ho

2010-01-01T23:59:59.000Z

189

Assessment of existing studies of wind loading on solar collectors  

SciTech Connect (OSTI)

In developing solar collectors, wind loading is the major structural design consideration. Wind loading investigations have focused on establishing safe bounds for steady state loading and verifying rational but initial and conservative design approaches for the various solar collector concepts. As such, the effort has been very successful, and has contributed greatly to both the recognition and qualitative understanding of many of the physical phenomena involved. Loading coefficients corresponding to mean wind velocities have been derived in these prior studies to measure the expected structural loading on the various solar collectors. Current design and testing procedures for wind loading are discussed. The test results corresponding to numerous wind tests on heliostats, parabolic troughs, parabolic dishes, and field mounted photovoltaic arrays are discussed and the applicability of the findings across the various technologies is assessed. One of the most significant consistencies in the data from all the technologies is the apparent benefit provided by fences and field shielding. Taken in toto, these data show that load reductions of three or possibly more seem feasible, though a more thorough understanding of the phenomena involved must be attained before this benefit can be realized. It is recommended that the required understanding be developed to take advantage of this benefit and that field tests be conducted to correlate with both analyses and tests.

Murphy, L. M.

1981-02-01T23:59:59.000Z

190

Recovery Act: Advanced Load Identification and Management for Buildings  

SciTech Connect (OSTI)

In response to the U.S. Department of Energy (DoE)’s goal of achieving market ready, net-zero energy residential and commercial buildings by 2020 and 2025, Eaton partnered with the Department of Energy’s National Renewable Energy Laboratory (NREL) and Georgia Institute of Technology to develop an intelligent load identification and management technology enabled by a novel “smart power strip” to provide critical intelligence and information to improve the capability and functionality of building load analysis and building power management systems. Buildings account for 41% of the energy consumption in the United States, significantly more than either transportation or industrial. Within the building sector, plug loads account for a significant portion of energy consumption. Plug load consumes 15-20% of building energy on average. As building managers implement aggressive energy conservation measures, the proportion of plug load energy can increase to as much as 50% of building energy leaving plug loads as the largest remaining single source of energy consumption. This project focused on addressing plug-in load control and management to further improve building energy efficiency accomplished through effective load identification. The execution of the project falls into the following three major aspects. 1) An intelligent load modeling, identification and prediction technology was developed to automatically determine the type, energy consumption, power quality, operation status and performance status of plug-in loads, using electric waveforms at a power outlet level. This project demonstrated the effectiveness of the developed technology through a large set of plug-in loads measurements and testing. 2) A novel “Smart Power Strip (SPS) / Receptacle” prototype was developed to act as a vehicle to demonstrate the feasibility of load identification technology as a low-cost, embedded solution. 3) Market environment for plug-in load control and management solutions, in particular, advanced power strips (APSs) was studied. The project evaluated the market potential for Smart Power Strips (SPSs) with load identification and the likely impact of a load identification feature on APS adoption and effectiveness. The project also identified other success factors required for widespread APS adoption and market acceptance. Even though the developed technology is applicable for both residential and commercial buildings, this project is focused on effective plug-in load control and management for commercial buildings, accomplished through effective load identification. The project has completed Smart Receptacle (SR) prototype development with integration of Load ID, Control/Management, WiFi communication, and Web Service. Twenty SR units were built, tested, and demonstrated in the Eaton lab; eight SR units were tested in the National Renewable Energy Lab (NREL) for one-month of field testing. Load ID algorithm testing for extended load sets was conducted within the Eaton facility and at local university campuses. This report is to summarize the major achievements, activities, and outcomes under the execution of the project.

Yang, Yi; Casey, Patrick; Du, Liang; He, Dawei

2014-02-12T23:59:59.000Z

191

Commercial equipment loads: End-Use Load and Consumer Assessment Program (ELCAP)  

SciTech Connect (OSTI)

The Office of Energy Resources of the Bonneville Power Administration is generally responsible for the agency's power and conservation resource planning. As associated responsibility which supports a variety of office functions is the analysis of historical trends in and determinants of energy consumption. The Office of Energy Resources' End-Use Research Section operates a comprehensive data collection program to provide pertinent information to support demand-side planning, load forecasting, and demand-side program development and delivery. Part of this on-going program is known as the End-Use Load and Consumer Assessment Program (ELCAP), an effort designed to collect electricity usage data through direct monitoring of end-use loads in buildings. This program is conducted for Bonneville by the Pacific Northwest Laboratory. This report provides detailed information on electricity consumption of miscellaneous equipment from the commercial portion of ELCAP. Miscellaneous equipment includes all commercial end-uses except heating, ventilating, air conditioning, and central lighting systems. Some examples of end-uses covered in this report are office equipment, computers, task lighting, refrigeration, and food preparation. Electricity consumption estimates, in kilowatt-hours per square food per year, are provided for each end-use by building type. The following types of buildings are covered: office, retail, restaurant, grocery, warehouse, school, university, and hotel/motel. 6 refs., 35 figs., 12 tabs.

Pratt, R.G.; Williamson, M.A.; Richman, E.E.; Miller, N.E.

1990-07-01T23:59:59.000Z

192

Review of Regional Load and Resource Information A Report to Resource Adequacy Steering Committee  

E-Print Network [OSTI]

that provides an opportunity to review basic load and resource data used in the annual Resource Adequacy that is compared are single point estimates for annual energy and the monthly 1 hour peak loads for a specific year, a look at the annual energy and winter peaking capability of those projects provides indicators of each

193

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

E-Print Network [OSTI]

largely on two specific ancillary services: regulation and load following. Staff explained how increased and load following services; · The resources currently available in the region that provide regulation and load following services; · The resources in the region which do not currently provide regulation

194

Influence of loading rate on axially loaded piles in clay  

E-Print Network [OSTI]

. Coyle (Member) ave u ofs (Member) . Hsrsc (Head of Department) May 1984 ABSTRACT Influence of Loading Rate on Axially Loaded Piles in Clay. (May 1984) Enrique Eduardo Garland Ponce, B. S. , Texas A8M University Chairman of Committee: Dr. Jean... and support during all phases of this study. The author also wishes to acknowledge Drs. Harry M. Coyle and David Dubofski who served as members of the advisory committee. Special notes of gratitude to Dr . Wayne A. Dunlap for his aid in the design...

Garland Ponce, Enrique Eduardo

1984-01-01T23:59:59.000Z

195

Notes2Providers.doc -1-Notes to Retail Providers  

E-Print Network [OSTI]

an energy mix or fuel mix different than the California Mix, (Net System Power)i . As a retail provider you to provisions mandating disclosure of fuel mix information to consumersii . These regulations also require every. When must you file? Report/Filing Submit No Later Than 2002 Annual Retail Providers Report (to Energy

196

Hanford Apatite Treatability Test Report Errata: Apatite Mass Loading Calculation  

SciTech Connect (OSTI)

The objective of this errata report is to document an error in the apatite loading (i.e., treatment capacity) estimate reported in previous apatite treatability test reports and provide additional calculation details for estimating apatite loading and barrier longevity. The apatite treatability test final report (PNNL-19572; Vermeul et al. 2010) documents the results of the first field-scale evaluation of the injectable apatite PRB technology. The apatite loading value in units of milligram-apatite per gram-sediment is incorrect in this and some other previous reports. The apatite loading in units of milligram phosphate per gram-sediment, however, is correct, and this is the unit used for comparison to field core sample measurements.

Szecsody, James E.; Vermeul, Vincent R.; Williams, Mark D.; Truex, Michael J.

2014-05-19T23:59:59.000Z

197

Load flow analysis: Base cases, data, diagrams, and results  

SciTech Connect (OSTI)

This report describes how an electric utility system is modeled by using load flow techniques to establish a validated power flow case suitable for simulating and evaluating alternative system scenarios. Details of the load flow model are supported by additional technical and descriptive information intended to correlate modeled electrical system parameters with the corresponding physical equipment that makes up the system. Pictures and technical specifications of system equipment from the utility, public, or vendor are provided to support this association for many system components. The report summarizes the load flow model construction, simulation, and validation and describes the general capabilities of an information query system designed to access load flow parameters and other electrical system information.

Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; Peerenboom, J.P.

1997-10-01T23:59:59.000Z

198

{Control of Residential Load Management Networks Using Real Time Pricing  

E-Print Network [OSTI]

loads to deliver load following and regulation, withproducts like load following and spinning reserve.following of constant power references. Chapter 7 Implications of Load

Burke, William Jerome

2010-01-01T23:59:59.000Z

199

Hydrogen loaded metal for bridge-foils for enhanced electric gun/slapper detonator operation  

DOE Patents [OSTI]

The invention provides a more efficient electric gun or slapper detonator which provides a higher velocity flyer by using a bridge foil made of a hydrogen loaded metal. 8 figs.

Osher, J.E.

1992-01-14T23:59:59.000Z

200

Competitive Natural Gas Providers (Iowa)  

Broader source: Energy.gov [DOE]

Competitive providers and aggregators of natural gas must be certified by the Utilities Board. Applicants must demonstrate the managerial, technical, and financial capability to perform the...

Note: This page contains sample records for the topic "loads providing ancillary" 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

Methods and apparatus for rotor load control in wind turbines  

DOE Patents [OSTI]

A wind turbine having a rotor, at least one rotor blade, and a plurality of generators, of which a first generator is configured to provide power to an electric grid and a second generator is configured to provide power to the wind turbine during times of grid loss. The wind turbine is configured to utilize power provided by the second generator to reduce loads on the wind turbine during times of grid loss.

Moroz, Emilian Mieczyslaw

2006-08-22T23:59:59.000Z

202

MODELING AND CONTROL OF THERMOSTATICALLY CONTROLLED LOADS  

E-Print Network [OSTI]

controlled loads (TCLs) has demonstrated that such load following is feasible, but analyt- ical models) is well matched to the role of load following. Re- search into the behavior of TCLs began with the work was then employed in a minimum variance control law to demonstrate the load following capability of a population

Hiskens, Ian A.

203

Flow Duration Curve Load Duration Curve  

E-Print Network [OSTI]

#12;Flow Duration Curve Load Duration Curve #12;1. Develop Flow Duration Curve 2. Estimate load given flow and concentration data--select appropriate conversion factors 3. Develop Load Duration Curve 4. Plot observed data with Load Duration Curve #12;What are they? How do you make one? #12;Describes

204

Flow Duration Curve Load Duration Curve  

E-Print Network [OSTI]

Flow Duration Curve Load Duration Curve 1. Develop Flow Duration Curve 2. Estimate load given flow and concentration data--select appropriate conversion factors 3. Develop Load Duration Curve 4. Plot observed data with Load Duration Curve What are they? How do you make one? Describes the percent of time a flow rate

205

Load controller and method to enhance effective capacity of a photovoltaic power supply  

DOE Patents [OSTI]

A load controller and method are provided for maximizing effective capacity of a non-controllable, renewable power supply coupled to a variable electrical load also coupled to a conventional power grid. Effective capacity is enhanced by monitoring power output of the renewable supply and loading, and comparing the loading against the power output and a load adjustment threshold determined from an expected peak loading. A value for a load adjustment parameter is calculated by subtracting the renewable supply output and the load adjustment parameter from the current load. This value is then employed to control the variable load in an amount proportional to the value of the load control parameter when the parameter is within a predefined range. By so controlling the load, the effective capacity of the non-controllable, renewable power supply is increased without any attempt at operational feedback control of the renewable supply. The renewable supply may comprise, for example, a photovoltaic power supply or a wind-based power supply.

Perez, Richard (Delmar, NY)

2000-01-01T23:59:59.000Z

206

Thermal loading study for FY 1995  

SciTech Connect (OSTI)

This report provides the results of sensitivity analyses designed to assist the test planners in focusing their in-situ measurements on parameters that appear to be important to waste isolation. Additionally, the study provides a preliminary assessment of the feasibility of certain thermal management options. A decision on thermal loading is a critical part of the scientific and engineering basis for evaluating regulatory compliance of the potential repository for waste isolation. To show, with reasonable assurance, that the natural and engineered barriers will perform adequately under expected repository conditions (thermally perturbed) will require an integrated approach based on thermal testing (laboratory, and in-situ), natural analog observations, and analytic modeling. The Office of Civilian Radioactive Waste Management needed input to assist in the planning of the thermal testing program. Additionally, designers required information on the viability of various thermal management concepts. An approximately 18-month Thermal Loading Study was conducted from March, 1994 until September 30, 1995 to address these issues. This report documents the findings of that study. 89 refs., 71 figs., 33 tabs.

NONE

1996-01-31T23:59:59.000Z

207

Reduced-Order Modeling of Aggregated Thermostatic Loads With Demand Response  

SciTech Connect (OSTI)

Demand Response is playing an increasingly important role in smart grid control strategies. Modeling the behavior of populations of appliances under demand response is especially important to evaluate the effectiveness of these demand response programs. In this paper, an aggregated model is proposed for a class of Thermostatically Controlled Loads (TCLs). The model efficiently includes statistical information of the population, systematically deals with heterogeneity, and accounts for a second-order effect necessary to accurately capture the transient dynamics in the collective response. However, an accurate characterization of the collective dynamics however requires the aggregate model to have a high state space dimension. Most of the existing model reduction techniques require the stability of the underlying system which does not hold for the proposed aggregated model. In this work, a novel model reduction approach is developed for the proposed aggregated model, which can significantly reduce its complexity with small performance loss. The original and the reducedorder aggregated models are validated against simulations of thousands of detailed building models using GridLAB-D, which is a realistic open source distribution simulation software. Index Terms – demand response, aggregated model, ancillary

Zhang, Wei; Lian, Jianming; Chang, Chin-Yao; Kalsi, Karanjit; Sun, Yannan

2012-12-12T23:59:59.000Z

208

Photovoltaic power converter system with a controller configured to actively compensate load harmonics  

DOE Patents [OSTI]

Photovoltaic power converter system including a controller configured to reduce load harmonics is provided. The system comprises a photovoltaic array and an inverter electrically coupled to the array to generate an output current for energizing a load connected to the inverter and to a mains grid supply voltage. The system further comprises a controller including a first circuit coupled to receive a load current to measure a harmonic current in the load current. The controller includes a second circuit to generate a fundamental reference drawn by the load. The controller further includes a third circuit for combining the measured harmonic current and the fundamental reference to generate a command output signal for generating the output current for energizing the load connected to the inverter. The photovoltaic system may be configured to compensate harmonic currents that may be drawn by the load.

de Rooij, Michael Andrew (Clifton Park, NY); Steigerwald, Robert Louis (Burnt Hills, NY); Delgado, Eladio Clemente (Burnt Hills, NY)

2008-12-16T23:59:59.000Z

209

Smart Domestic Appliances Provide Flexibility for Sustainable...  

Open Energy Info (EERE)

benefits and difficulties associated with smart grid appliances. The presenter discusses demand response and load management and how users of smart grid can benefit renewable...

210

Selecting a Control Strategy for Plug and Process Loads  

SciTech Connect (OSTI)

Plug and Process Loads (PPLs) are building loads that are not related to general lighting, heating, ventilation, cooling, and water heating, and typically do not provide comfort to the building occupants. PPLs in commercial buildings account for almost 5% of U.S. primary energy consumption. On an individual building level, they account for approximately 25% of the total electrical load in a minimally code-compliant commercial building, and can exceed 50% in an ultra-high efficiency building such as the National Renewable Energy Laboratory's (NREL) Research Support Facility (RSF) (Lobato et al. 2010). Minimizing these loads is a primary challenge in the design and operation of an energy-efficient building. A complex array of technologies that measure and manage PPLs has emerged in the marketplace. Some fall short of manufacturer performance claims, however. NREL has been actively engaged in developing an evaluation and selection process for PPLs control, and is using this process to evaluate a range of technologies for active PPLs management that will cap RSF plug loads. Using a control strategy to match plug load use to users' required job functions is a huge untapped potential for energy savings.

Lobato, C.; Sheppy, M.; Brackney, L.; Pless, S.; Torcellini, P.

2012-09-01T23:59:59.000Z

211

Online Load Balancing for Related Machines 1 Piotr Berman  

E-Print Network [OSTI]

), the load of a machine i in schedule s and Load(s), the load of entire schedule s as follows: load(s; i) = 1On­line Load Balancing for Related Machines 1 Piotr Berman The Pennsylvania State University of randomized algorithms for this problem. Key Words: on­line algorithm, load balancing, related machines

Charikar, Moses

212

44-BWR WASTE PACKAGE LOADING CURVE EVALUATION  

SciTech Connect (OSTI)

The objective of this calculation is to evaluate the required minimum burnup as a function of initial boiling water reactor (BWR) assembly enrichment that would permit loading of spent nuclear fuel into the 44 BWR waste package configuration as provided in Attachment IV. This calculation is an application of the methodology presented in ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003). The scope of this calculation covers a range of enrichments from 0 through 5.0 weight percent (wt%) U-235, and a burnup range of 0 through 40 GWd/MTU. This activity supports the validation of the use of burnup credit for commercial spent nuclear fuel applications. The intended use of these results will be in establishing BWR waste package configuration loading specifications. Limitations of this evaluation are as follows: (1) The results are based on burnup credit for actinides and selected fission products as proposed in YMP (2003, Table 3-1) and referred to as the ''Principal Isotopes''. Any change to the isotope listing will have a direct impact on the results of this report. (2) The results of 100 percent of the current BWR projected waste stream being able to be disposed of in the 44-BWR waste package with Ni-Gd Alloy absorber plates is contingent upon the referenced waste stream being sufficiently similar to the waste stream received for disposal. (3) The results are based on 1.5 wt% Gd in the Ni-Gd Alloy material and having no tuff inside the waste package. If the Gd loading is reduced or a process to introduce tuff inside the waste package is defined, then this report would need to be reevaluated based on the alternative materials.

J.M. Scaglione

2004-08-25T23:59:59.000Z

213

Monitoring of Electrical End-Use Loads in Commercial Buildings  

E-Print Network [OSTI]

Southern California Edison is currently conducting a program to collect end-use metered data from commercial buildings in its service area. The data will provide actual measurements of end-use loads and will be used in research and in designing...

Martinez, M.; Alereza, T.; Mort, D.

1988-01-01T23:59:59.000Z

214

Field Test Protocol: Standard Internal Load Generation in Unoccupied Test Homes  

SciTech Connect (OSTI)

This document describes a simple and general way to generate House Simulation Protocol (HSP)-consistent internal sensible and latent loads in unoccupied homes. It is newly updated based on recent experience, and provides instructions on how to calculate and set up the operational profiles in unoccupied homes. The document is split into two sections: how to calculate the internal load magnitude and schedule, and then what tools and methods should be used to generate those internal loads to achieve research goals.

Fang, X.; Christensen, D.; Barker, G.; Hancock, E.

2011-06-01T23:59:59.000Z

215

Independent review of estimated load reductions for PJM's small customer load response pilot project  

E-Print Network [OSTI]

of Estimated Load Reductions for PJM’s Small Customer Loadof Estimated Load Reductions for PJM’s Small Customer LoadResponse Pilot Project Prepared for PJM Interconnection, LLC

Heffner, G.; Moezzi, M.; Goldman, C.

2004-01-01T23:59:59.000Z

216

Measured electric hot water standby and demand loads from Pacific Northwest homes. End-Use Load and Consumer Assessment Program  

SciTech Connect (OSTI)

The Bonneville Power Administration began the End-Use Load and Consumer Assessment Program (ELCAP) in 1983 to obtain metered hourly end-use consumption data for a large sample of new and existing residential and commercial buildings in the Pacific Northwest. Loads and load shapes from the first 3 years of data fro each of several ELCAP residential studies representing various segments of the housing population have been summarized by Pratt et al. The analysis reported here uses the ELCAP data to investigate in much greater detail the relationship of key occupant and tank characteristics to the consumption of electricity for water heating. The hourly data collected provides opportunities to understand electricity consumption for heating water and to examine assumptions about water heating that are critical to load forecasting and conservation resource assessments. Specific objectives of this analysis are to: (A) determine the current baseline for standby heat losses by determining the standby heat loss of each hot water tank in the sample, (B) examine key assumptions affecting standby heat losses such as hot water temperatures and tank sizes and locations, (C) estimate, where possible, impacts on standby heat losses by conservation measures such as insulating tank wraps, pipe wraps, anticonvection valves or traps, and insulating bottom boards, (D) estimate the EF-factors used by the federal efficiency standards and the nominal R-values of the tanks in the sample, (E) develop estimates of demand for hot water for each home in the sample by subtracting the standby load from the total hot water load, (F) examine the relationship between the ages and number of occupants and the hot water demand, (G) place the standby and demand components of water heating electricity consumption in perspective with the total hot water load and load shape.

Pratt, R.G.; Ross, B.A.

1991-11-01T23:59:59.000Z

217

Rural Australia Providing Climate Solutions  

E-Print Network [OSTI]

in three important areas of Australia's low carbon future: providing clean energy and electricity on private land. The paper presents the best available information on the potential supply of each electricity target, such as a renewable energy target of 25% by 2020 appears challenging but feasible

Queensland, University of

218

Soil load above Hanford waste storage tanks (2 volumes)  

SciTech Connect (OSTI)

This document is a compilation of work performed as part of the Dome Load Control Project in 1994. Section 2 contains the calculations of the weight of the soil over the tank dome for each of the 75-feet-diameter waste-storage tanks located at the Hanford Site. The chosen soil specific weight and soil depth measured at the apex of the dome crown are the same as those used in the primary analysis that qualified the design. Section 3 provides reference dimensions for each of the tank farm sites. The reference dimensions spatially orient the tanks and provide an outer diameter for each tank. Section 4 summarizes the available soil surface elevation data. It also provides examples of the calculations performed to establish the present soil elevation estimates. The survey data and other data sources from which the elevation data has been obtained are printed separately in Volume 2 of this Supporting Document. Section 5 contains tables that provide an overall summary of the present status of dome loads. Tables summarizing the load state corresponding to the soil depth and soil specific weight for the original qualification analysis, the gravity load requalification for soil depth and soil specific weight greater than the expected actual values, and a best estimate condition of soil depth and specific weight are presented for the Double-Shell Tanks. For the Single-Shell Tanks, only the original qualification analysis is available; thus, the tabulated results are for this case only. Section 6 provides a brief overview of past analysis and testing results that given an indication of the load capacity of the waste storage tanks that corresponds to a condition approaching ultimate failure of the tank. 31 refs.

Pianka, E.W. [Advent Engineering Services, Inc., San Ramon, CA (United States)

1995-01-25T23:59:59.000Z

219

Residential Load Management Program and Pilot  

E-Print Network [OSTI]

In 1986 LCRA embarked on residential load management to control peak summer loads. At that time, LCRA was considered a summer peaking utility, and residential air conditioning and water heating systems were selected for control. The program...

Haverlah, D.; Riordon, K.

1994-01-01T23:59:59.000Z

220

Helicase Loading at Chromosomal Origins of Replication  

E-Print Network [OSTI]

Loading of the replicative DNA helicase at origins of replication is of central importance in DNA replication. As the first of the replication fork proteins assemble at chromosomal origins of replication, the loaded helicase ...

Bell, Stephen P.

Note: This page contains sample records for the topic "loads providing ancillary" 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

UPDATE: EFFECTIVE LOAD CARRYING CAPABILITY OF PHOTOVOLTAICS IN THE UNITED STATES  

E-Print Network [OSTI]

Carrying Capability (ELLC) by analyzing recent load data from 39 US utilities and time-coincident output Electric Indianapolis Power & Light City of Chattanooga Florida Power and Light First Energy Consolidated003m@mail.rochester.edu ABSTRACT We provide an update on the US distribution of PV's Effective Load

Perez, Richard R.

222

Active load control techniques for wind turbines.  

SciTech Connect (OSTI)

This report provides an overview on the current state of wind turbine control and introduces a number of active techniques that could be potentially used for control of wind turbine blades. The focus is on research regarding active flow control (AFC) as it applies to wind turbine performance and loads. The techniques and concepts described here are often described as 'smart structures' or 'smart rotor control'. This field is rapidly growing and there are numerous concepts currently being investigated around the world; some concepts already are focused on the wind energy industry and others are intended for use in other fields, but have the potential for wind turbine control. An AFC system can be broken into three categories: controls and sensors, actuators and devices, and the flow phenomena. This report focuses on the research involved with the actuators and devices and the generated flow phenomena caused by each device.

van Dam, C.P. (University of California, Davis, CA); Berg, Dale E.; Johnson, Scott J. (University of California, Davis, CA)

2008-07-01T23:59:59.000Z

223

Communication Load Reduction for Neural Network Implementations  

E-Print Network [OSTI]

the total amount of communication load, followed by a placement of partitions onto proces- sors 3]. We

Behnke, Sven

224

Plug Load Behavioral Change Demonstration Project  

SciTech Connect (OSTI)

This report documents the methods and results of a plug load study of the Environmental Protection Agency's Region 8 Headquarters in Denver, Colorado, conducted by the National Renewable Energy Laboratory. The study quantified the effect of mechanical and behavioral change approaches on plug load energy reduction and identified effective ways to reduce plug load energy. Load reduction approaches included automated energy management systems and behavioral change strategies.

Metzger, I.; Kandt, A.; VanGeet, O.

2011-08-01T23:59:59.000Z

225

A Novel Approach to Determining Motor Load  

E-Print Network [OSTI]

A NOVEL APPROACH TO DETERMINING MOTOR LOAD by Michael Brown Georgia Tech Research Institute Atlanta, Georgia ABSTRACf Properly sized electric motors are essential if industrial plant efficiency is to be optimized and energy costs... minimized. Because of the difficully in making power measurements on three phase motors, loading is rarely, if ever, checked. A simple indication of motor load can be achieved by measuring operating speed because speed and load are almost linearly...

Brown, M.

226

Investigation of sands subjected to dynamic loading  

E-Print Network [OSTI]

become apparent that dynamic, or sud- denly applied loads, present a different type of problem to the engineer. Wind loads on tall structures, pile driving, nuclear blasts, and many other familiar loading conditions cannot be de- scribed or handled... an earthquake or nuclear blast. Also under this category of loading is the pulse which would be purposely induced to fail the soil structure for the purpose of excavation or pile driving. As part of a broader research project concerned with pile dri- ving...

Reeves, Gary Neil

1967-01-01T23:59:59.000Z

227

Properly Evaluating load-following products  

SciTech Connect (OSTI)

The authors briefly survey the jurisdictions where load-following products have been successfully used, examine the characteristics of the load-following products, and explain the shortcomings and inaccurate conclusions of previous analyses. A more thorough analysis reveals that the load-following products fulfill the public policy objectives for which they have been designed and do not adversely impact wholesale electricity markets.

Cavicchi, Joseph; Lemon, Andrew

2009-01-15T23:59:59.000Z

228

Parasitic load control system for exhaust temperature control  

DOE Patents [OSTI]

A parasitic load control system is provided. The system may include an exhaust producing engine and a fuel pumping mechanism configured to pressurize fuel in a pressure chamber. The system may also include an injection valve configured to cause fuel pressure to build within the pressure chamber when in a first position and allow injection of fuel from the pressure chamber into one or more combustion chambers of the engine when in a second position. The system may further include a controller configured to independently regulate the pressure in the pressure chamber and the injection of fuel into the one or more combustion chambers, to increase a load on the fuel pumping mechanism, increasing parasitic load on the engine, thereby increasing a temperature of the exhaust produced by the engine.

Strauser, Aaron D. (Washington, IL); Coleman, Gerald N. (Peterborough, GB); Coldren, Dana R. (Fairbury, IL)

2009-04-28T23:59:59.000Z

229

Model for Aggregated Water Heater Load Using Dynamic Bayesian Networks  

SciTech Connect (OSTI)

The transition to the new generation power grid, or “smart grid”, requires novel ways of using and analyzing data collected from the grid infrastructure. Fundamental functionalities like demand response (DR), that the smart grid needs, rely heavily on the ability of the energy providers and distributors to forecast the load behavior of appliances under different DR strategies. This paper presents a new model of aggregated water heater load, based on dynamic Bayesian networks (DBNs). The model has been validated against simulated data from an open source distribution simulation software (GridLAB-D). The results presented in this paper demonstrate that the DBN model accurately tracks the load profile curves of aggregated water heaters under different testing scenarios.

Vlachopoulou, Maria; Chin, George; Fuller, Jason C.; Lu, Shuai; Kalsi, Karanjit

2012-07-19T23:59:59.000Z

230

Regression Models for Demand Reduction based on Cluster Analysis of Load Profiles  

SciTech Connect (OSTI)

This paper provides new regression models for demand reduction of Demand Response programs for the purpose of ex ante evaluation of the programs and screening for recruiting customer enrollment into the programs. The proposed regression models employ load sensitivity to outside air temperature and representative load pattern derived from cluster analysis of customer baseline load as explanatory variables. The proposed models examined their performances from the viewpoint of validity of explanatory variables and fitness of regressions, using actual load profile data of Pacific Gas and Electric Company's commercial and industrial customers who participated in the 2008 Critical Peak Pricing program including Manual and Automated Demand Response.

Yamaguchi, Nobuyuki; Han, Junqiao; Ghatikar, Girish; Piette, Mary Ann; Asano, Hiroshi; Kiliccote, Sila

2009-06-28T23:59:59.000Z

231

1991 Pacific Northwest Loads and Resources Study, Technical Appendix: Volume 1.  

SciTech Connect (OSTI)

This publication provides detailed documentation of the load forecast scenarios and assumptions used in preparing BPA's 1991 Pacific Northwest Loads and Resources Study (the Study). This is one of two technical appendices to the Study; the other appendix details the utility-specific loads and resources used in the Study. The load forecasts and assumption were developed jointly by Bonneville Power Administration (BPA) and Northwest Power Planning Council (Council) staff. This forecast is also used in the Council's 1991 Northwest Conservation and Electric Power Plan (1991 Plan).

United States. Bonneville Power Administration.

1992-03-01T23:59:59.000Z

232

Methods and apparatus for reduction of asymmetric rotor loads in wind turbines  

DOE Patents [OSTI]

A method for reducing load and providing yaw alignment in a wind turbine includes measuring displacements or moments resulting from asymmetric loads on the wind turbine. These measured displacements or moments are used to determine a pitch for each rotor blade to reduce or counter asymmetric rotor loading and a favorable yaw orientation to reduce pitch activity. Yaw alignment of the wind turbine is adjusted in accordance with the favorable yaw orientation and the pitch of each rotor blade is adjusted in accordance with the determined pitch to reduce or counter asymmetric rotor loading.

Moroz, Emilian Mieczyslaw; Pierce, Kirk Gee

2006-10-10T23:59:59.000Z

233

Experimental frequency-dependent rotordynamic coefficients for a load-on-pad, high-speed, flexible-pivot tilting-pad bearing  

E-Print Network [OSTI]

This thesis provides experimental frequency dependent stiffness and damping coefficient results for a high-speed, lightly loaded, flexible-pivot tilting-pad bearing, with a load-on-pad configuration. Test conditions include four shaft speeds (6000...

Rodriguez Colmenares, Luis Emigdio

2004-09-30T23:59:59.000Z

234

Wind loading on solar concentrators: some general considerations  

SciTech Connect (OSTI)

A survey has been completed to examine the problems and complications arising from wind loading on solar concentrators. Wind loading is site specific and has an important bearing on the design, cost, performance, operation and maintenance, safety, survival, and replacement of solar collecting systems. Emphasis herein is on paraboloidal, two-axis tracking systems. Thermal receiver problems also are discussed. Wind characteristics are discussed from a general point of view; current methods for determining design wind speed are reviewed. Aerodynamic coefficients are defined and illustrative examples are presented. Wind tunnel testing is discussed, and environmental wind tunnels are reviewed; recent results on heliostat arrays are reviewed as well. Aeroelasticity in relation to structural design is discussed briefly. Wind loads, i.e., forces and moments, are proportional to the square of the mean wind velocity. Forces are proportional to the square of concentrator diameter, and moments are proportional to the cube of diameter. Thus, wind loads have an important bearing on size selection from both cost and performance standpoints. It is concluded that sufficient information exists so that reasonably accurate predictions of wind loading are possible for a given paraboloidal concentrator configuration, provided that reliable and relevant wind conditions are specified. Such predictions will be useful to the design engineer and to the systems engineer as well. Information is lacking, however, on wind effects in field arrays of paraboloidal concentrators. Wind tunnel tests have been performed on model heliostat arrays, but there are important aerodynamic differences between heliostats and paraboloidal dishes.

Roschke, E. J.

1984-05-01T23:59:59.000Z

235

1993 Pacific Northwest Loads and Resources Study.  

SciTech Connect (OSTI)

The Loads and Resources Study is presented in three documents: (1) this summary of Federal system and Pacific Northwest region loads and resources; (2) a technical appendix detailing forecasted Pacific Northwest economic trends and loads, and (3) a technical appendix detailing the loads and resources for each major Pacific Northwest generating utility. In this loads and resources study, resource availability is compared with a range of forecasted electricity consumption. The forecasted future electricity demands -- firm loads -- are subtracted from the projected capability of existing and {open_quotes}contracted for{close_quotes} resources to determine whether Bonneville Power Administration (BPA) and the region will be surplus or deficit. If resources are greater than loads in any particular year or month, there is a surplus of energy and/or capacity, which BPA can sell to increase revenues. Conversely, if firm loads exceed available resources, there is a deficit of energy and/or capacity, and additional conservation, contract purchases, or generating resources will be needed to meet load growth. The Pacific Northwest Loads and Resources Study analyzes the Pacific Northwest`s projected loads and available generating resources in two parts: (1) the loads and resources of the Federal system, for which BPA is the marketing agency; and (2) the larger Pacific Northwest regional power system, which includes loads and resource in addition to the Federal system. The loads and resources analysis in this study simulates the operation of the power system under the Pacific Northwest Coordination Agreement (PNCA) produced by the Pacific Northwest Coordinating Group. This study presents the Federal system and regional analyses for five load forecasts: high, medium-high, medium, medium-low, and low. This analysis projects the yearly average energy consumption and resource availability for Operating Years (OY) 1994--95 through 2003--04.

United States. Bonneville Power Administration.

1993-12-01T23:59:59.000Z

236

High loading uranium fuel plate  

DOE Patents [OSTI]

Two embodiments of a high uranium fuel plate are disclosed which contain a meat comprising structured uranium compound confined between a pair of diffusion bonded ductile metal cladding plates uniformly covering the meat, the meat having a uniform high fuel loading comprising a content of uranium compound greater than about 45 Vol. % at a porosity not greater than about 10 Vol. %. In a first embodiment, the meat is a plurality of parallel wires of uranium compound. In a second embodiment, the meat is a dispersion compact containing uranium compound. The fuel plates are fabricated by a hot isostatic pressing process.

Wiencek, Thomas C. (Bolingbrook, IL); Domagala, Robert F. (Indian Head Park, IL); Thresh, Henry R. (Palos Heights, IL)

1990-01-01T23:59:59.000Z

237

Automated fuel pin loading system  

DOE Patents [OSTI]

An automated loading system for nuclear reactor fuel elements utilizes a gravity feed conveyor which permits individual fuel pins to roll along a constrained path perpendicular to their respective lengths. The individual lengths of fuel cladding are directed onto movable transports, where they are aligned coaxially with the axes of associated handling equipment at appropriate production stations. Each fuel pin can be reciprocated axially and/or rotated about its axis as required during handling steps. The fuel pins are inserted as a batch prior to welding of end caps by one of two disclosed welding systems.

Christiansen, David W. (Kennewick, WA); Brown, William F. (West Richland, WA); Steffen, Jim M. (Richland, WA)

1985-01-01T23:59:59.000Z

238

Estimation of Seismic Load Demand for a Wind Turbine in the Time Domain: Preprint  

SciTech Connect (OSTI)

Turbines installed in seismically active regions such as the Pacific Rim or the Mediterranean must consider loads induced by base shaking from an earthquake. To account for this earthquake risk, current International Electrotechnical Commission (IEC) certification requirements provide a simplified method for calculating seismic loads which is intended to be conservative. Through the addition of capabilities, it is now possible to simulate earthquake loading of a wind turbine in conjunction other load sources such as wind and control system behavior using the FAST code. This paper presents a comparison of three earthquake loading scenarios of the National Renewable Energy Laboratory (NREL) offshore 5-MW baseline wind turbine: idling; continued operation through an earthquake; and an emergency shutdown initiated by an earthquake. Using a set of 22 earthquake records, simulations are conducted for each load case. A summary of the resulting tower moment demand is presented to assess the influence of operational state on the resulting structural demand.

Prowell, I.; Elgamal, A.; Uang, C.; Jonkman, J.

2010-03-01T23:59:59.000Z

239

Dynamic Load Balancing of Virtualized Database Services Using Hints and Load  

E-Print Network [OSTI]

server during runtime. Figure 1 shows the load curve of a typical interactive service. In the morningDynamic Load Balancing of Virtualized Database Services Using Hints and Load Forecasting Daniel-organizing infrastructures to react proactively. For this pur- pose we present two techniques: Short-term load forecasting

Kemper, Alfons

240

High payload six-axis load sensor  

DOE Patents [OSTI]

A repairable high-payload six-axis load sensor includes a table, a base, and at least three shear-pin load transducers removably mounted between the table and the base. Removable mounting permits easy replacement of damaged shear pins. Preferably, the shear-pin load transducers are responsive to shear forces imparted along the two axes perpendicular to an axis of minimum sensitivity characteristic of the transducer. Responsive to an applied shear force, each shear-pin load transducer can produce an electrical signal proportional to the reaction force. The load sensor can further include a structure for receiving the proportional electrical signals and computing the applied load corresponding to the proportional electrical signals. The computed load can be expressed in terms of a three-dimensional XYZ Cartesian coordinate system.

Jansen, John F. (Knoxville, TN); Lind, Randall F. (Knoxville, TN)

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

Low reflectance radio frequency load  

DOE Patents [OSTI]

A load for traveling microwave energy has an absorptive volume defined by cylindrical body enclosed by a first end cap and a second end cap. The first end cap has an aperture for the passage of an input waveguide with a rotating part that is coupled to a reflective mirror. The inner surfaces of the absorptive volume consist of a resistive material or are coated with a coating which absorbs a fraction of incident RF energy, and the remainder of the RF energy reflects. The angle of the reflector and end caps is selected such that reflected RF energy dissipates an increasing percentage of the remaining RF energy at each reflection, and the reflected RF energy which returns to the rotating mirror is directed to the back surface of the rotating reflector, and is not coupled to the input waveguide. Additionally, the reflector may have a surface which generates a more uniform power distribution function axially and laterally, to increase the power handling capability of the RF load. The input waveguide may be corrugated for HE11 mode input energy.

Ives, R. Lawrence; Mizuhara, Yosuke M

2014-04-01T23:59:59.000Z

242

Simulations of Lithium-Based Neutron Coincidence Counter for Gd-Loaded Fuel  

SciTech Connect (OSTI)

The Department of Energy Office of Nuclear Safeguards and Security (NA-241) is supporting the project Lithium-Based Alternative Neutron Detection Technology Coincidence Counting for Gd-loaded Fuels at Pacific Northwest National Laboratory for the development of a lithium-based neutron coincidence counter for nondestructively assaying Gd loaded nuclear fuel. This report provides results from MCNP simulations of a lithium-based coincidence counter for the possible measurement of Gd-loaded nuclear fuel. A comparison of lithium-based simulations and UNCL-II simulations with and without Gd loaded fuel is provided. A lithium-based model, referred to as PLNS3A-R1, showed strong promise for assaying Gd loaded fuel.

Cowles, Christian C.; Kouzes, Richard T.; Siciliano, Edward R.

2014-10-31T23:59:59.000Z

243

Environmental standards provide competitive advantage  

SciTech Connect (OSTI)

Quality organizations are breaking new ground with the development of international standards for environmental management. These promise to provide the platform for chemical companies wanting to establish their environmental credibility with a global audience. [open quotes]It will be similar to auditing our customers to ISO 9000[close quote], says the environmental manager for a European chemical firm. [open quote]We will only want to deal with people who have got their environmental act together. And we'll be in a better competitive positions[close quote]. The International Organization for Standardization (ISO;Geneva) has set up a taskforce to develop an environmental management standard, which is expected to be completed by the mid-1990s. Observers think the ISO standard will draw heavily on the British Standard Institute's (BSI;London) environmental management standard, BS7750, which will likely be the first system adopted in the world. Published last year, BS7750 has been extensively piloted in the UK (CW, Sept. 30, 1992, p. 62) and is now set to be revised before being offically adopted by BSI. The UK's Chemical Industries Association (CIA;London) is anxious to prevent a proliferation of standards, and its report on BS7750 pilot projects calls for an approach integrating quality, environment, and health and safety. But standard setters, including ISO, appear to be moving in the opposite direction. In the US, the American national Standards Institute (ANSI;Washington) has started work on an environmental management standard.

Chynoweth, E.; Kirshner, E.

1993-04-28T23:59:59.000Z

244

Load Schedule Coordination for a Large Linear Accelerator: An Operation Powerplay Concept  

E-Print Network [OSTI]

Operation Powerplay is a viable electric load management program developed and tested with Department of Energy funding and support. It is a concept designed to provide financial benefits to a utility and one or more of its customers through...

Johnson, W. H.

1984-01-01T23:59:59.000Z

245

Benefits of Industrial Boiler Control and Economic Load Allocation at AMOCO Chemicals, Decatur, Alabama  

E-Print Network [OSTI]

The objective of this paper is to provide an overview of the economic benefits realized by Amoco's Decatur plant from the utilization of Honeywell's Industrial Boiler Control solution and Turbo Economic Load Allocation packages on an integrated four...

Winter, J.

246

Diagnostic indicators for shipboard systems using non-intrusive load monitoring  

E-Print Network [OSTI]

Field studies have demonstrated that the Non-Intrusive Load monitor (NILM) can provide real-time indication of the condition of electro-mechanical systems on board naval vessels. Results from data collected from engineering ...

DeNucci, Thomas W

2005-01-01T23:59:59.000Z

247

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

E-Print Network [OSTI]

the potential for water heaters to provide incremental and decremental reserves for load and wind balancing The Power Committee first discussed the potential for some loads to provide ancillary services nearly two this potential, and the Council has contributed to one of several pilot programs in the region that are beginning

248

Fire loading calculations for 300 Area N Reactor Fuel Fabrication and Storage Facility  

SciTech Connect (OSTI)

Fire loading analyses were provided for the N Reactor Fuel Supply Buildings 3712, 3716, 303A, 303B, 303E, 303G, and 303K. Fire loading calculations, maximum temperatures, and fire durations were provided to support the safety analyses documentation. The ``combustibles`` for this document include: wood, cardboard, cloth, and plastic, and does not include the uranium and fuel assembly loading. The information in this document will also be used to support the fire hazard analysis for the same buildings, therefore, it is assumed that sprinkler systems do not work, or the maximum possible fire loss is assumed.

Myott, C.F.

1994-01-24T23:59:59.000Z

249

Bulk Modulus Capacitor Load Cells  

SciTech Connect (OSTI)

Measurement of forces present at various locations within the SSC Model Dipole collared coil assembly is of great practical interest to development engineers. Of particular interest are the forces between coils at the parting plane and forces that exist between coils and pole pieces. It is also desired to observe these forces under the various conditions that a magnet will experience such as: during the collaring process, post-collaring, under the influence of cryogens, and during field excitation. A twenty eight thousandths of an inch thick capacitor load cell which utilizes the hydrostatic condition of a stressed plastic dielectric has been designed. These cells are currently being installed on SSC Model Dipoles. The theory, development, and application of these cells will be discussed.

Dickey, C.E.

1990-04-01T23:59:59.000Z

250

Preliminary Evaluation of Load Management for Electricity End Users  

E-Print Network [OSTI]

The planning, design and implementation of load management is complex and expensive. The results of a load management program are subject to numerous uncertainties related to load characteristics, power cost savings, load management costs...

Collier, S. E.

1984-01-01T23:59:59.000Z

251

Online Load Balancing for Related Machines 1 (Revised Piotr Berman  

E-Print Network [OSTI]

s as follows: load(s; i) = 1 v i X s(j)=i p j ; Load(s) = max i load(s; i) It is easy to observe that findingOn­line Load Balancing for Related Machines 1 (Revised Version) Piotr Berman The Pennsylvania State of randomized algorithms for this problem. Key Words: on­line algorithm, load balancing, related machines

Karpinski, Marek

252

Residential Air Conditioner Direct Load Control "Energy Partners Program"  

E-Print Network [OSTI]

RESIDENTIAL AIR CONDITIONER DIRECT LOAD CONTROL "ENERGY PARTNERS PROGRAMn John D. Cook Supervisor Houston ABSTRACT Demand side management programs like Energy Partners can provide an effective peak reducing capability which within a.... In this partnership the customer allows HLfP to install a I switch on his/her air conditioner or heat pump and i periodically cycle the unit off during the hottest summer 1 days. In return the customer benefits by receiving an incentive payment, as well...

Cook, J. D.

1994-01-01T23:59:59.000Z

253

1994 Pacific Northwest Loads and Resources Study, Technical Appendix: Volume 1.  

SciTech Connect (OSTI)

The 1994 Pacific Northwest Loads and Resources Study establishes the Bonneville Power Administration`s (BPA) planning basis for supplying electricity t6 BPA customers. The Loads and Resources Study is presented in two documents: (1) this technical appendix detailing loads and resources for each major Pacific Northwest generating utility; and (2) a summary of Federal system and Pacific Northwest region loads and resources. This analysis updates the 1993 Pacific Northwest Loads and Resources Study Technical Appendix published in December 1993. This technical appendix provides utility specific information that BPA uses in its long-range planning. It incorporates the following for each utility: (1) electrical demand-firm loads; (2) generating resources; and (3) contracts both inside and outside the region. This document should be used in combination with the 1994 Pacific Northwest Loads and Resources Study, published in December 1994, because much of the information in that document is not duplicated here. This BPA planning document incorporates Pacific Northwest generating resources and the 1994 medium load forecast prepared by BPA. Each utility`s forecasted future firm loads are subtracted from its existing resources to determine whether it will be surplus or deficit. If a utility`s resources are greater than loads in any particular year or month, there is a surplus of energy and/or capacity, which the utility can sell to increase revenues. Conversely, if its firm loads exceed available resources, there is a deficit of energy and/or capacity, and additional conservation, contract purchases, or generating resources will be needed to meet the utility`s load.

United States. Bonneville Power Administration.

1994-12-01T23:59:59.000Z

254

FINAL PROJECT REPORT LOAD MODELING TRANSMISSION RESEARCH  

E-Print Network [OSTI]

Air Conditioner Testing in WECC,” IEEE Power  Engineering Air Conditioner Modeling, WECC Load Modeling Task  Force in power system studies: WECC progress update,? Power and 

Lesieutre, Bernard

2013-01-01T23:59:59.000Z

255

FINAL PROJECT REPORT LOAD MODELING TRANSMISSION RESEARCH  

E-Print Network [OSTI]

Lights HVAC Figure 15 Demand Response and Market AnalysisHVAC Load % of Total Hour of Day Figure 16 Demand Response and Market

Lesieutre, Bernard

2013-01-01T23:59:59.000Z

256

Decentralized customerlevel under frequency load shedding in...  

Open Energy Info (EERE)

project focuses on a smart demand side management of household consumers. Modern communication technology enables the management of large groups of distributed loads under a...

257

Spinning Reserve From Hotel Load Response: Initial Progress  

SciTech Connect (OSTI)

This project was motivated by the fundamental match between hotel space conditioning load response capability and power system contingency response needs. As power system costs rise and capacity is strained demand response can provide a significant system reliability benefit at a potentially attractive cost. At ORNL s suggestion, Digital Solutions Inc. adapted its hotel air conditioning control technology to supply power system spinning reserve. This energy saving technology is primarily designed to provide the hotel operator with the ability to control individual room temperature set-points based upon occupancy (25% to 50% energy savings based on an earlier study [Kirby and Ally, 2002]). DSI added instantaneous local load shedding capability in response to power system frequency and centrally dispatched load shedding capability in response to power system operator command. The 162 room Music Road Hotel in Pigeon Forge Tennessee agreed to host the spinning reserve test. The Tennessee Valley Authority supplied real-time metering equipment in the form of an internet connected Dranetz-BMI power quality meter and monitoring expertise to record total hotel load during both normal operations and test results. The Sevier County Electric System installed the metering. Preliminary testing showed that hotel load can be curtailed by 22% to 37% depending on the outdoor temperature and the time of day. These results are prior to implementing control over the common area air conditioning loads. Testing was also not at times of highest system or hotel loading. Full response occurred in 12 to 60 seconds from when the system operator s command to shed load was issued. The load drop was very rapid, essentially as fast as the 2 second metering could detect, with all units responding essentially simultaneously. Load restoration was ramped back in over several minutes. The restoration ramp can be adjusted to the power system needs. Frequency response testing was not completed. Initial testing showed that the units respond very quickly. Problems with local power quality generated false low frequency signals which required testing to be stopped. This should not be a problem in actual operation since the frequency trip points will be staggered to generate a droop curve which mimics generator governor response. The actual trip frequencies will also be low enough to avoid power quality problems. The actual trip frequencies are too low to generate test events with sufficient regularity to complete testing in a reasonable amount of time. Frequency response testing will resume once the local power quality problem is fully understood and reasonable test frequency settings can be determined. Overall the preliminary testing was extremely successful. The hotel response capability matches the power system reliability need, being faster than generation response and inherently available when the power system is under the most stress (times of high system and hotel load). Periodic testing is scheduled throughout the winter and spring to characterize hotel response capability under a full range of conditions. More extensive testing will resume when summer outdoor temperatures are again high enough to fully test hotel response.

Kueck, John D [ORNL; Kirby, Brendan J [ORNL

2008-11-01T23:59:59.000Z

258

Assessment of Industrial Load for Demand Response across Western Interconnect  

SciTech Connect (OSTI)

Demand response (DR) has the ability to both increase power grid reliability and potentially reduce operating system costs. Understanding the role of demand response in grid modeling has been difficult due to complex nature of the load characteristics compared to the modeled generation and the variation in load types. This is particularly true of industrial loads, where hundreds of different industries exist with varying availability for demand response. We present a framework considering industrial loads for the development of availability profiles that can provide more regional understanding and can be inserted into analysis software for further study. The developed framework utilizes a number of different informational resources, algorithms, and real-world measurements to perform a bottom-up approach in the development of a new database with representation of the potential demand response resource in the industrial sector across the U.S. This tool houses statistical values of energy and demand response (DR) potential by industrial plant and geospatially locates the information for aggregation for different territories without proprietary information. This report will discuss this framework and the analyzed quantities of demand response for Western Interconnect (WI) in support of evaluation of the cost production modeling with power grid modeling efforts of demand response.

Alkadi, Nasr E [ORNL; Starke, Michael R [ORNL; Ma, Ookie [United States Department of Energy (DOE), Office of Efficiency and Renewable Energy (EERE)

2013-11-01T23:59:59.000Z

259

Load Reduction, Demand Response and Energy Efficient Technologies and Strategies  

SciTech Connect (OSTI)

The Department of Energy’s (DOE’s) Pacific Northwest National Laboratory (PNNL) was tasked by the DOE Office of Electricity (OE) to recommend load reduction and grid integration strategies, and identify additional demand response (energy efficiency/conservation opportunities) and strategies at the Forest City Housing (FCH) redevelopment at Pearl Harbor and the Marine Corps Base Hawaii (MCBH) at Kaneohe Bay. The goal was to provide FCH staff a path forward to manage their electricity load and thus reduce costs at these FCH family housing developments. The initial focus of the work was at the MCBH given the MCBH has a demand-ratchet tariff, relatively high demand (~18 MW) and a commensurate high blended electricity rate (26 cents/kWh). The peak demand for MCBH occurs in July-August. And, on average, family housing at MCBH contributes ~36% to the MCBH total energy consumption. Thus, a significant load reduction in family housing can have a considerable impact on the overall site load. Based on a site visit to the MCBH and meetings with MCBH installation, FCH, and Hawaiian Electric Company (HECO) staff, recommended actions (including a "smart grid" recommendation) that can be undertaken by FCH to manage and reduce peak-demand in family housing are made. Recommendations are also made to reduce overall energy consumption, and thus reduce demand in FCH family housing.

Boyd, Paul A.; Parker, Graham B.; Hatley, Darrel D.

2008-11-19T23:59:59.000Z

260

An alternative to the determination of the effective zero point in instrumented indentation: use of the slope of the indentation curve at indentation load values  

E-Print Network [OSTI]

of the slope of the indentation curve at indentation load values P. Brammer1,2,* , O. Bartier1 , X. Hernot1 , G on instrumented indentation rely on the knowledge of the indentation load-penetration depth curve corresponding which is based on the slope of the indentation curve at indentation load values and provides accurate

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "loads providing ancillary" 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

Wind loading on solar collectors  

SciTech Connect (OSTI)

The present design methodology for the determination of wind loading on the various solar collectors has been reviewed and assessed. The total force coefficients of flat plates of aspect ratios 1.0 and 3.0, respectively, at various angles of attack obtained by using the guidelines of the ANSI A58.1-1982, have been compared with those obtained by using the methodology of the ASCE Task Committee, 1961, and the experimental results of the full-scale test of heliostats by Peglow. The turbulent energy spectra, currently employed in the building code, are compared with those of Kaimal et al., Lumley, and Ponofsky for wind velocities of 20.0 m/s and 40.24 m/s at an elevation of 9.15 m. The longitudinal spectra of the building code overestimates the Kaimal spectra in the frequency range of 0.007 Hz to 0.08 Hz and underestimates beyond the frequency of 0.08 Hz. The peak angles of attack, on the heliostat, stowed in horizontal position, due to turbulent vertical and lateral components of wind velocity, have been estimated by using Daniel's methodology for three wind velocities and compared with the value suggested by the code. The experimental results of a simple test in the laboratory indicate the feasibility of decreasing the drag forces of the flat plate by reducing the solidity ratio.

Bhaduri, S.; Murphy, L.M.

1985-06-01T23:59:59.000Z

262

Electrical and Production Load Factors  

E-Print Network [OSTI]

behind energy use (such as technology) and account for structural differences in industries between countries, therefore allowing for a fair comparison of energy efficiency performance [12]. More importantly, the IEA?s work provides a basis... by the IEA, comprehensive analysis and review of available data and dialogue with experts in different industries. It is difficult to develop a single indicator of energy for an industry and therefore, a number of indicators need to be used to provide a...

Sen, Tapajyoti

2010-07-14T23:59:59.000Z

263

Effects of dynamic conditions and sheave efficiency on hook load, derrick load, and line tension  

E-Print Network [OSTI]

EFFECTS OF DYNAMIC CONDITIONS AND SHEAVE EFFICIENCY ON HOOK LOAD, DERRICK LOAD, AND LINE TENSION A Thesis by GREGORY ROBERT LUKE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 1991 Major Subject: Petroleum Engineering EFFECTS OF DYNAMIC CONDITIONS AND SHEAVE EFFICIENCY ON HOOK LOAD, DERRICK LOAD, AND LINE TENSION A Thesis by GREGORY ROBERT LUKE Approved as to style and content by: Hans...

Luke, Gregory Robert

1991-01-01T23:59:59.000Z

264

Analysis and Synthesis of Load Forecasting Data for Renewable Integration Studies: Preprint  

SciTech Connect (OSTI)

As renewable energy constitutes greater portions of the generation fleet, the importance of modeling uncertainty as part of integration studies also increases. In pursuit of optimal system operations, it is important to capture not only the definitive behavior of power plants, but also the risks associated with systemwide interactions. This research examines the dependence of load forecast errors on external predictor variables such as temperature, day type, and time of day. The analysis was utilized to create statistically relevant instances of sequential load forecasts with only a time series of historic, measured load available. The creation of such load forecasts relies on Bayesian techniques for informing and updating the model, thus providing a basis for networked and adaptive load forecast models in future operational applications.

Steckler, N.; Florita, A.; Zhang, J.; Hodge, B. M.

2013-11-01T23:59:59.000Z

265

REACTIVE LOAD MODELINGIMPACTS ONNODAL PRICESINPOOL MODELELECTRICITYMARKETS  

E-Print Network [OSTI]

REACTIVE LOAD MODELINGIMPACTS ONNODAL PRICESINPOOL MODELELECTRICITYMARKETS EttoreBompard, Enrico of the nodal prices in competitive electricity markets based on the Pool paradigm. Such prices focus of the paper is on the explicit evaluation of the impactsof the reactive load onthenodal real

Gross, George

266

1997 Pacific Northwest Loads and Resources Study.  

SciTech Connect (OSTI)

The 1997 White Book is presented in two documents: (1) this summary of Federal system and Pacific Northwest region loads and resources; and (2) a technical appendix detailing the loads and resources for each major Pacific Northwest generating utility. Data detailing Pacific Northwest non-utility generating (NUG) resources is also available upon request. This analysis updates the 1996 pacific Northwest Loads and Resources Study, published in December 1996. In this loads and resources study, resource availability is compared with a medium forecast of electricity consumption. This document analyzes the Pacific Northwest`s projected loads and available generating resources in two parts: (1) the loads and resources of the Federal system, for which BPA is the marketing agency; and (2) the larger Pacific Northwest regional power system which includes loads and resources in addition to the Federal system. This study presents the Federal system and regional analyses for the medium load forecast. This analysis projects the yearly average energy consumption and resource availability for Operating Years (OY) 1998--99 through 2007--08.

United States. Bonneville Power Administration.

1997-12-01T23:59:59.000Z

267

Nonparametric models for electricity load forecasting  

E-Print Network [OSTI]

Electricity consumption is constantly evolving due to changes in people habits, technological innovations1 Nonparametric models for electricity load forecasting JANUARY 23, 2015 Yannig Goude, Vincent at University Paris-Sud 11 Orsay. His research interests are electricity load forecasting, more generally time

Genève, Université de

268

Static load testing of a heliostat drive  

SciTech Connect (OSTI)

The drive designed and built by the Solar Power Engineering Company (SPECO) for its large area heliostat failed under high wind loads during a winter storm. This report details the testing and analysis done to verify the load capabilities of the rebuilt heliostat drive. Changes in design and improvements in fabrication resulted in a usable drive. 12 figs., 7 tabs.

Grossman, J.W.

1991-10-01T23:59:59.000Z

269

Apparatus for loading a band saw blade  

DOE Patents [OSTI]

A band saw blade is loaded between pairs of guide wheels upon tensioning the blade by guiding the blade between pairs of spaced guide plates which define converging slots that converge toward the guide wheels. The approach is particularly useful in loading blades on underwater band saw machines used to cut radioactive materials. 2 figs.

Reeves, S.R.

1990-03-20T23:59:59.000Z

270

Thermionic converter in load-switching mode  

SciTech Connect (OSTI)

An electrical equivalent circuit is proposed for a thermionic electrogenerating element. It is suitable for calculation of transients in load-switching mode. Formulas are given for estimating circuit parameters. A sample numerical calculation is given for the transient between no-load and short-circuit regimes. The results may be employed to identify experimental data in the frequency domain.

Mendel'baum, M.A.; Es'kov, V.D.

1983-01-01T23:59:59.000Z

271

Load Forecast For use in Resource Adequacy  

E-Print Network [OSTI]

-term Electricity Demand Forecasting System 1) Obtain Daily Regional Temperatures 6) Estimate Daily WeatherLoad Forecast 2019 For use in Resource Adequacy Massoud Jourabchi #12;In today's presentation d l­ Load forecast methodology ­ Drivers of the forecast f i­ Treatment of conservation

272

Using Utility Load Data to Estimate Demand for Space Cooling and Potential for Shiftable Loads  

SciTech Connect (OSTI)

This paper describes a simple method to estimate hourly cooling demand from historical utility load data. It compares total hourly demand to demand on cool days and compares these estimates of total cooling demand to previous regional and national estimates. Load profiles generated from this method may be used to estimate the potential for aggregated demand response or load shifting via cold storage.

Denholm, P.; Ong, S.; Booten, C.

2012-05-01T23:59:59.000Z

273

Time and Cognitive Load 1 Time and Cognitive Load in Working Memory  

E-Print Network [OSTI]

Time and Cognitive Load 1 Time and Cognitive Load in Working Memory Pierre Barrouillet*, Sophie Bourgogne Running head: Time and Cognitive Load Corresponding author: Pierre Barrouillet Pierre manuscript, published in "Journal of Experimental Psychology: Learning, Memory, and Cognition 33, 3 (2007

Paris-Sud XI, Université de

274

STRUCTURAL RESPONSE OF THE DIII-D TOROIDAL FIELD COIL TO INCREASED LATERAL LOADS  

SciTech Connect (OSTI)

OAK-B135 Recent calibration shots in which full toroidal field (TF) coil current interacted with the maximum poloidal field coils have produced increased lateral loads on the outer sections of the TF-coil. The increased lateral loads have resulted in deflections that have been sufficient to cause the TF-coil to contact adjacent equipment and produce a transient short to ground within the coil. The six outer turns of each TF-coil bundle are clamped together by insulated preloaded studs to provide increased bending stiffness. These sections of the outer bundles depend on friction to react the lateral loads as a bundle rather than six individual turns. A major concern is that the increased loads will produce slip between turns resulting in excessive lateral deflections and possible damage to the insulating sleeve on the preloaded studs. A finite element structural model of the TF-coil was developed for the calculation of deflections and the shear load distribution throughout the coil for the applied lateral loads from a full current calibration shot. The purpose of the updated structural model is to correlate the applied lateral loads to the total shear force between the unbonded sections of the outer turns. An allowable integrated lateral load applied to the outer turns is established based on the maximum shear force that can be reacted by friction. A program that calculates the magnetic fields and integrated lateral load along the outer turns can be incorporated into the plasma control system. The integrated load can then be compared to the calculated allowable value prior to execution of calibration shots. Calibration shots with a calculated total lateral load greater than the allowable value will be prevented.

REIS,E.E; CHIN,E

2003-10-01T23:59:59.000Z

275

1993 Pacific Northwest Loads and Resources Study, Technical Appendix: Volume 2, Book 1, Energy.  

SciTech Connect (OSTI)

The 1993 Pacific Northwest Loads and Resources Study establishes the Bonneville Power Administration`s (BPA) planning basis for supplying electricity to BPA customers. The Loads and Resources Study is presented in three documents: (1) this technical appendix detailing loads and resources for each major Pacific and Northwest generating utility, (2) a summary of Federal system and Pacific Northwest region loads and resources, and (3) a technical appendix detailing forecasted Pacific Northwest economic trends and loads. This analysis updates the 1992 Pacific Northwest Loads and Resources Study Technical Appendix published in December 1992. This technical appendix provides utility-specific information that BPA uses in its long-range planning. It incorporates the following for each utility (1) Electrical demand firm loads; (2) Generating resources; and (3) Contracts both inside and outside the region. This document should be used in combination with the 1993 Pacific Northwest Loads and Resources Study, published in December 1993, because much of the information in that document is not duplicated here.

United States. Bonneville Power Administration.

1993-12-01T23:59:59.000Z

276

Plug-Load Control and Behavioral Change Research in GSA Office Buildings  

SciTech Connect (OSTI)

The U.S. General Services Administration (GSA) owns and leases over 354 million square feet (ft2) of space in over 9,600 buildings [1]. GSA is a leader among federal agencies in aggressively pursuing energy efficiency (EE) opportunities for its facilities and installing renewable energy (RE) systems to provide heating, cooling, and power to these facilities. According to several energy assessments of GSA's buildings conducted by the National Renewable Energy Laboratory (NREL), plug-loads account for approximately 21% of the total electricity consumed within a standard GSA Region 3 office building. This study aims to provide insight on how to effectively manage plug-load energy consumption and attain higher energy and cost savings for plug-loads. As GSA improves the efficiency of its building stock, plug-loads will become an even greater portion of its energy footprint.

Metzger, I.; Cutler, D.; Sheppy, M.

2012-10-01T23:59:59.000Z

277

Wind loading on tracking and field-mounted solar collectors  

SciTech Connect (OSTI)

Current design and testing procedures for wind loading are discussed. The test results corresponding to numerous wind tests on heliostats, parabolic troughs, parabolic dishes, and field mounted photovoltaic arrays are discussed and the applicability of the findings across the various technologies is assessed. One of the most significant consistencies in the data from all of the technologies is the apparent benefit provided by fences and field shielding. Taken in toto, these data show that load reductions of three, or possibly more, seem feasible, though a more thorough understanding of the phenomena involved must be attained before this benefit can be realized. It is recommended that the required understanding be developed to take advantage of this benefit and that field tests be conducted to correlate with both analyses and tests.

Murphy, L.M.

1980-12-01T23:59:59.000Z

278

Plug and Process Loads Capacity and Power Requirements Analysis  

SciTech Connect (OSTI)

This report addresses gaps in actionable knowledge that would help reduce the plug load capacities designed into buildings. Prospective building occupants and real estate brokers lack accurate references for plug and process load (PPL) capacity requirements, so they often request 5-10 W/ft2 in their lease agreements. Limited initial data, however, suggest that actual PPL densities in leased buildings are substantially lower. Overestimating PPL capacity leads designers to oversize electrical infrastructure and cooling systems. Better guidance will enable improved sizing and design of these systems, decrease upfront capital costs, and allow systems to operate more energy efficiently. The main focus of this report is to provide industry with reliable, objective third-party guidance to address the information gap in typical PPL densities for commercial building tenants. This could drive changes in negotiations about PPL energy demands.

Sheppy, M.; Gentile-Polese, L.

2014-09-01T23:59:59.000Z

279

Synthesis of polyoxometalate-loaded epoxy composites  

DOE Patents [OSTI]

The synthesis of a polyoxometalate-loaded epoxy uses a one-step cure by applying an external stimulus to release the acid from the polyoxometalate and thereby catalyze the cure reaction of the epoxy resin. Such polyoxometalate-loaded epoxy composites afford the cured epoxy unique properties imparted by the intrinsic properties of the polyoxometalate. For example, polyoxometalate-loaded epoxy composites can be used as corrosion resistant epoxy coatings, for encapsulation of electronics with improved dielectric properties, and for structural applications with improved mechanical properties.

Anderson, Benjamin J

2014-10-07T23:59:59.000Z

280

Load requirements for maintaining structural integrity of Hanford single-shell tanks during waste feed delivery and retrieval activities  

SciTech Connect (OSTI)

This document provides structural load requirements and their basis for maintaining the structural integrity of the Hanford Single-Shell Tanks during waste feed delivery and retrieval activities. The requirements are based on a review of previous requirements and their basis documents as well as load histories with particular emphasis on the proposed lead transfer feed tanks for the privatized vitrification plant.

JULYK, L.J.

1999-09-22T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

Community Renewable Energy Deployment Provides Replicable Examples...  

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

Community Renewable Energy Deployment Provides Replicable Examples of Clean Energy Projects Community Renewable Energy Deployment Provides Replicable Examples of Clean Energy...

282

24th Annual BIA Tribal Providers Conference  

Office of Energy Efficiency and Renewable Energy (EERE)

The BIA Tribal Providers Conference is the second largest conference in Alaska, providing opportunities for tribal leaders, native corporations and rural representatives to connect with federal...

283

NERSC Calculations Provide Independent Confirmation of Global...  

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

Calculations Provide Independent Confirmation of Global Land Warming Since 1901 NERSC Calculations Provide Independent Confirmation of Global Land Warming Since 1901 September 9,...

284

Load apparatus and method for bolt-loaded compact tension test specimen  

DOE Patents [OSTI]

A bolt-loaded compact tension test specimen load apparatus includes: (a) a body having first and second opposing longitudinal ends, the first end comprising an externally threaded portion sized to be threadedly received within the test specimen threaded opening; (b) a longitudinal loading rod having first and second opposing longitudinal ends, the loading rod being slidably received in a longitudinal direction within the body internally through the externally threaded portion and slidably extending longitudinally outward of the body first longitudinal end; (c) a force sensitive transducer slidably received within the body and positioned to engage relative to the loading rod second longitudinal end; and (d) a loading bolt threadedly received relative to the body, the loading bolt having a bearing end surface and being positioned to bear against the transducer to forcibly sandwich the transducer between the loading bolt and loading rod. Also disclosed is a method of in situ determining applied force during crack propagation in a bolt-loaded compact tension test specimen. 6 figs.

Buescher, B.J. Jr.; Lloyd, W.R.; Ward, M.B.; Epstein, J.S.

1997-02-04T23:59:59.000Z

285

Load apparatus and method for bolt-loaded compact tension test specimen  

DOE Patents [OSTI]

A bolt-loaded compact tension test specimen load apparatus includes: a) a body having first and second opposing longitudinal ends, the first end comprising an externally threaded portion sized to be threadedly received within the test specimen threaded opening; b) a longitudinal loading rod having first and second opposing longitudinal ends, the loading rod being slidably received in a longitudinal direction within the body internally through the externally threaded portion and slidably extending longitudinally outward of the body first longitudinal end; c) a force sensitive transducer slidably received within the body and positioned to engage relative to the loading rod second longitudinal end; and d) a loading bolt threadedly received relative to the body, the loading bolt having a bearing end surface and being positioned to bear against the transducer to forcibly sandwich the transducer between the loading bolt and loading rod. Also disclosed is a method of in situ determining applied force during crack propagation in a bolt-loaded compact tension test specimen.

Buescher, Jr., Brent J. (Idaho Falls, ID); Lloyd, W. Randolph (Idaho Falls, ID); Ward, Michael B. (Idaho Falls, ID); Epstein, Jonathan S. (Idaho Falls, ID)

1997-01-01T23:59:59.000Z

286

2007 Wholesale Power Rate Case Final Proposal : Load Resource Study and Documentation.  

SciTech Connect (OSTI)

The Load Resource Study (Study) represents the compilation of the load and contract obligations, contact purchases, and resource data necessary for developing BPA's wholesale power rates. The results of this Study are used to: (1) provide data to determine resource costs for the Revenue Requirement Study, WP-07-FS-BPA-02; (2) provide data to derive billing determinants for the revenue forecast in the Wholesale Power Rate Development Study (WPRDS), WP-07-FS-BPA-05; (3) provide load and resource data for use in the Risk Analysis Study, WP-07-FS-BPA-04; and (4) provide regional hydro data for use in the secondary revenue forecast for the Market Price Forecast Study, WP-07-FS-BPA-03. This Study provides a synopsis of BPA's load resource analyses. This Study illustrates how each component is completed, how components relate to each other, and how each component fits into the rate development process. Details and results supporting this Study are contained in the Load Resource Study Documentation, WP-07-FS-BPA-01A.

United States. Bonneville Power Administration.

2006-07-01T23:59:59.000Z

287

2007 Wholesale Power Rate Case Initial Proposal : Load Resource Study and Documentation.  

SciTech Connect (OSTI)

The Load Resource Study (Study) represents the compilation of the loads, sales, contracts, and resource data necessary for developing BPA wholesale power rates. The results of this Study are used to: (1) provide base data to determine resource costs for the Revenue Requirement Study, WP-07-E-BPA-02; (2) provide regional hydro data for use in the secondary revenue forecast for the Market Power Study, WP-07-E-BPA-03; (3) provide base data to derive billing determinants for the revenue forecast in the Wholesale Power Rate Development Study (WPRDS), WP-07-E-BPA-05; and (4) provide load and resource data for use in calculating risk in the Risk Analysis Study, WP-07-E-BPA-04. This Study provides a synopsis of BPA's load resource analyses. This Study illustrates how each component is completed, how components relate to each other, and how each component fits into the rate development process. Details and results supporting this Study are contained in the Load Resource Documentation, WP-07-E-BPA-01A.

United States. Bonneville Power Administration.

2005-11-01T23:59:59.000Z

288

Load-follow control simulation with optimization  

SciTech Connect (OSTI)

For the simulation of load-follow control operation of pressurized water reactors (PWRs), the system model needs to describe both primary and secondary system behaviors, because the load-change signal in the secondary system delivers a change in the primary system through the thermal-hydraulic interactions in the steam generator. In this study, the characteristics of load-follow control for a PWR were investigated using a one-dimensional core model combined with a simplified nuclear steam supply system model using optimization. The overall system model includes one-dimensional core neutronics with all the space-dependent feedback effects, Xe-I dynamics, core thermal balances, primary loop thermal balances, and steam generator dynamic responses to turbine load changes. The final system equations were manipulated for the lumped parameter representations by using the model expansion technique for the core model.

Yim, Man-Sung; Christenson, J.M.

1989-01-01T23:59:59.000Z

289

Modeling and control of thermostatically controlled loads  

SciTech Connect (OSTI)

As the penetration of intermittent energy sources grows substantially, loads will be required to play an increasingly important role in compensating the fast time-scale fluctuations in generated power. Recent numerical modeling of thermostatically controlled loads (TCLs) has demonstrated that such load following is feasible, but analytical models that satisfactorily quantify the aggregate power consumption of a group of TCLs are desired to enable controller design. We develop such a model for the aggregate power response of a homogeneous population of TCLs to uniform variation of all TCL setpoints. A linearized model of the response is derived, and a linear quadratic regulator (LQR) has been designed. Using the TCL setpoint as the control input, the LQR enables aggregate power to track reference signals that exhibit step, ramp and sinusoidal variations. Although much of the work assumes a homogeneous population of TCLs with deterministic dynamics, we also propose a method for probing the dynamics of systems where load characteristics are not well known.

Backhaus, Scott N [Los Alamos National Laboratory; Sinitsyn, Nikolai [Los Alamos National Laboratory; Kundu, S. [UNIV OF MICHIGAN; Hiskens, I. [UNIV OF MICHIGAN

2011-01-04T23:59:59.000Z

290

MCO loading and cask loadout technical manual  

SciTech Connect (OSTI)

A compilation of the technical basis for loading a multi-canister overpack (MCO) with spent nuclear fuel and then placing the MCO into a cask for shipment to the Cold Vacuum Drying Facility. The technical basis includes a description of the process, process technology that forms the basis for loading alternatives, process control considerations, safety considerations, equipment description, and a brief facility structure description.

PRAGA, A.N.

1998-10-01T23:59:59.000Z

291

Harmonic approaches to non-intrusive load diagnostics  

E-Print Network [OSTI]

The Non-Intrusive Load Monitor (NILM) is a system that monitors, records and processes voltage and current measurements to establish the operating characteristics of individual loads on a load center from a single aggregate ...

Fuller, Ashley E. (Ashley Eliot)

2008-01-01T23:59:59.000Z

292

Psychosocial mediators of ethnic disparities in Allostatic Load /  

E-Print Network [OSTI]

in Allostatic Load A dissertation submitted in partialPartial Associations between Posited Mediators with Ethnicity and Allostatic Load……………………………………………………………………………………Partial Associations between Posited Mediators with Ethnicity and Allostatic Load

Tomfohr, Lianne Marie

2013-01-01T23:59:59.000Z

293

axial compressive load: Topics by E-print Network  

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

as the electromagnetic and thermal contraction loads are large but also for the heat load from the AC coupling loss. Reduction of the transverse load and warm-up cool-down...

294

axial compressive loading: Topics by E-print Network  

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

as the electromagnetic and thermal contraction loads are large but also for the heat load from the AC coupling loss. Reduction of the transverse load and warm-up cool-down...

295

General solutions for thermopiezoelectrics with various holes under thermal loading  

E-Print Network [OSTI]

induced by thermal loads. The loads may be uniform remote heat ÂŻow, point heat source and temperature elastic plate with an hole of various shapes subjected to remote uniform mechanical loading. For plane

Qin, Qinghua

296

PO. 254 Control of Power Train Loads  

E-Print Network [OSTI]

Abstract summary Variable loads along the power train are the primary cause attributed to the failure of gears, bearings, and other mechanical components. The concept of anticipatory control applied to a wind power train is presented. This new approach to power train load management is based on the data reflecting the current status of the power train. The model driving the optimization of the power train loads considers four different objectives, including minimization of the torque variability and power maximization. A software tool for power train load management is presented. This new approach to power train load control is based on the data reflecting the current status of the power train. Such data is collected by a typical SCADA system. The model driving the optimization of the power train loads considers four different objectives, including minimization of the torque variability and power maximization. Details of the model that is applicable to different turbines are presented Objectives Goal: Transform a wind a farm into a wind power plant Example objectives: ? Minimization of the torque ramp rate ? Maximization of the power produced ? Maximization of the power quality Modify the shape of the power curve Methods Data mining/Knowledge discovery

Andrew Kusiak

297

Novel Electrolyzer Applications: Providing More Than Just Hydrogen  

SciTech Connect (OSTI)

Hydrogen can be used for many different applications and can be integrated into many different system architectures. One of the methods for producing the hydrogen is to use an electrolyzer. This work explores the flexibility of electrolyzers to behave as responsive loads. Experimental tests were performed for a proton exchange membrane (PEM) and an alkaline electrolyzer to assess the operational flexibility of electrolyzers to behave as responsive loads. The results are compared to the operational requirements to participate in end-user facility energy management, transmission and distribution system support, and wholesale electricity market services. Electrolyzers begin changing their electricity demand within milliseconds of a set-point change. The settling time after a set-point change is on the order of seconds. It took 6.5 minutes for the PEM unit to execute a cold start and 1 minute to turn off. In addition, a frequency disturbance correction test was performed and electrolyzers were able to accelerate the speed that the grid frequency can be restored. Electrolyzers acting as demand response devices can respond sufficiently fast and for a long enough duration to participate in all of the applications explored. Furthermore, electrolyzers can be operated to support a variety of applications while also providing hydrogen for industrial processes, transportation fuel, or heating fuel. Additionally, favorable operating properties and a variety of potential system architectures showcase the flexibility of electrolyzer systems.

Eichman, J.; Harrison, K.; Peters, M.

2014-09-01T23:59:59.000Z

298

1999 Pacific Northwest Loads and Resources Study.  

SciTech Connect (OSTI)

The Pacific Northwest Loads and Resources Study (White Book) is published annually by BPA and establishes the planning basis for supplying electricity to customers. It serves a dual purpose. First, the White Book presents projections of regional and Federal system load and resource capabilities, along with relevant definitions and explanations. Second, the White Book serves as a benchmark for annual BPA determinations made pursuant to its regional power sales contracts. Specifically, BPA uses the information in the White Book for determining the notice required when customers request to increase or decrease the amount of power purchased from BPA. The White Book will not be used in calculations for the 2002 regional power sales contract subscription process. The White Book compiles information obtained from several formalized resource planning reports and data submittals, including those from the Northwest Power Planning Council (Council) and the Pacific Northwest Utilities Conference Committee (PNUCC). The White Book is not an operational planning guide, nor is it used for determining BPA revenues. Operation of the Federal Columbia River Power System (FCRPS) is based on a set of criteria different from that used for resource planning decisions. Operational planning is dependent upon real-time or near-term knowledge of system conditions, including expectations of river flows and runoff, market opportunities, availability of reservoir storage, energy exchanges, and other factors affecting the dynamics of operating a power system. In this loads and resources study, resource availability is compared with a medium forecast of electricity consumption. The forecasted future electricity demands--firm loads--are subtracted from the projected capability of existing and ''contracted for'' resources to determine whether BPA and the region will be surplus or deficit. If Federal system resources are greater than loads in any particular year or month, there is a surplus of energy and/or capacity, which BPA may use or market to increase revenues. Conversely, if Federal system firm loads exceed available resources, there is a deficit of energy and/or capacity and BPA would add conservation or contract purchases as needed to meet its firm loads. The load forecast is derived by using econometric models and analysis to predict the loads that will be placed on electric utilities in the region. This study incorporates information on contract obligations and contract resources, combined with the resource capabilities obtained from public utility and investor-owned utility (IOU) customers through their annual data submittals to the PNUCC, from BPA's Firm Resource Exhibit (FRE Exhibit I) submittals, and through analysis of the Federal hydroelectric power system. The loads and resources analysis in this study simulates the operation of the power system under the Pacific Northwest Coordination Agreement (PNCA) produced by the Pacific Northwest Coordinating Group. The PNCA defines the planning and operation of the regional hydrosystem. The 1999 White Book is presented in two documents: (1) this summary of Federal system and Pacific Northwest region loads and resources; and (2) a technical appendix (available electronically only) detailing the loads and resources for each major Pacific Northwest generating utility. This analysis updates the December 1998 Pacific Northwest Loads and Resources Study. This analysis projects the yearly average energy consumption and resource availability for Operating Years (OY) 2000-01 through 2009-10. The study shows the Federal system's and the region's monthly estimated maximum electricity demand, monthly energy demand, monthly energy generation, and monthly maximum generating capability--capacity--for OY 2000-01, 2004-05, and 2009-10. The Federal system and regional monthly capacity surplus/deficit projections are summarized for 10 operating years. This document analyzes the Pacific Northwest's projected loads and available generating resources in two parts: (1) the loads and resources of the Federal system, for wh

United States. Bonneville Power Administration.

1999-12-01T23:59:59.000Z

299

Abstract--The distribution system provides major opportunities for smart grid concepts. One way to approach  

E-Print Network [OSTI]

1 Abstract-- The distribution system provides major opportunities for smart grid concepts. One way efficiencies through the use of waste heat. Managing significant levels of DER with a wide and dynamic set clustered generation and associated loads as a grid resource or a "microgrid". The clustered sources

300

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

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

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

Note: This page contains sample records for the topic "loads providing ancillary" 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

Y-12 Finishes Initial HEUMF Loading Ahead of Schedule | National...  

National Nuclear Security Administration (NNSA)

Home Field Offices Welcome to the NNSA Production Office NPO News Releases Y-12 Finishes Initial HEUMF Loading Ahead of Schedule Y-12 Finishes Initial HEUMF Loading...

302

acute acid loading an: Topics by E-print Network  

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

7 queries Meagher, Mary 29 An Automatic Load Sharing Approach for a DFIG Based Wind Generator in a Microgrid Engineering Websites Summary: An Automatic Load Sharing Approach...

303

Characterization of Dynamic Loads on Solar Modules with Respect...  

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

Characterization of Dynamic Loads on Solar Modules with Respect to Fracture of Solar Cells Characterization of Dynamic Loads on Solar Modules with Respect to Fracture of Solar...

304

Effect of Compression Ratio and Piston Geometry on RCCI load...  

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

Compression Ratio and Piston Geometry on RCCI load limit Effect of Compression Ratio and Piston Geometry on RCCI load limit Explores the effect of compression ratio and piston...

305

Development of an Accelerated Ash-Loading Protocol for Diesel...  

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

an Accelerated Ash-Loading Protocol for Diesel Particulate Filters Development of an Accelerated Ash-Loading Protocol for Diesel Particulate Filters Poster presentation at the 2007...

306

The Development of a Small Engine Based Accelerated Ash Loading...  

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

Accelerated Ash Loading Protocol The Development of a Small Engine Based Accelerated Ash Loading Protocol Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan....

307

Local Soot Loading Distribution in Cordierite Diesel Particulate...  

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

Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by Dynamic Neutron Radiography Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by...

308

2012 White Book, Pacific Northwest Loads and Resources Study  

SciTech Connect (OSTI)

The White Book is a planning analysis produced by BPA that informs BPA of its load and resource conditions for sales and purchases. The White Book provides a 10-year look at the expected obligations and resources in the Federal system and PNW region. The White Book is used as a planning tool for the Columbia River Treaty (Treaty) studies, as an information tool for customers and regional interests, and as a publication of information utilized by other planning entities for their analyses. The White Book is not used to guide day-to-day operations of the Federal Columbia River Power System (FCRPS) or determine BPA revenues or rates.

None

2013-06-06T23:59:59.000Z

309

21-PWR WASTE PACKAGE WITH ABSORBER PLATES LOADING CURVE EVALUATION  

SciTech Connect (OSTI)

The objective of this calculation is to evaluate the required minimum burnup as a function of initial pressurized water reactor (PWR) assembly enrichment that would permit loading of spent nuclear fuel into the 21 PWR waste package with absorber plates design as provided in Attachment IV. This calculation is an example of the application of the methodology presented in the ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003). The scope of this calculation covers a range of enrichments from 0 through 5.0 weight percent U-235, and a burnup range of 0 through 45 GWd/MTU. Higher burnups were not necessary because 45 GWd/MTU was high enough for the loading curve determination. This activity supports the validation of the use of burnup credit for commercial spent nuclear fuel applications. The intended use of these results will be in establishing PWR waste package configuration loading specifications. Limitations of this evaluation are as follows: (1) The results are based on burnup credit for actinides and selected fission products as proposed in YMP (2003, Table 3-1) and referred to as the ''Principal Isotopes''. Any change to the isotope listing will have a direct impact on the results of this report. (2) The results are based on 1.5 wt% Gd in the Ni-Gd Alloy material and having no tuff inside the waste package. If the Gd loading is reduced or a process to introduce tuff inside the waste package is defined, then this report would need to be reevaluated based on the alternative materials. This calculation is subject to the ''Quality Assurance Requirements and Description'' (QARD) (DOE 2004) because it concerns engineered barriers that are included in the ''Q-List'' (BSC 2004k, Appendix A) as items important to safety and waste isolation.

J.M. Scaglione

2004-12-17T23:59:59.000Z

310

Multi Cloud Architecture to Provide Data Security And Integrity  

E-Print Network [OSTI]

Abstract-- Cloud servers are being used to store data and application but its security is a major issue in current context. To solve the data security problems in public environment we propose an effective model for security and integrity of data stored in a cloud, through data segmentation followed by data encryption programs in a multiple cloud architecture. This architecture forms a multi cloud system where primary cloud is available for multiple users for data storage offering lesser load on client systems thereby using the cloud computing architecture. This architecture introduces a secondary cloud controlled by a single administrator which provides the data backup for primary cloud after undergoing specific segmentation and encryption algorithms to ensure security and integrity of data. The proposed system also offers protection against virus attacks by using linux as the base OS. Keywords-- Encryption, Linux, Multi cloud system, Primary cloud, Secondary cloud, Segmentation.

Nikhil Dutta; Himanshu Bakshi; Mujammill Mulla; Viraj Shinde

311

A Computational Method for Determining Distributed Aerodynamic Loads on Planforms of Arbitrary Shape in Compressible Subsonic Flow  

E-Print Network [OSTI]

The methods presented in this work are intended to provided an easy to understand and easy to apply method for determining the distributed aerodynamic loads and aerodynamic characteristics of planforms of nearly arbitrary shape. Through application...

Brown, Matthew Alan

2013-12-31T23:59:59.000Z

312

February 10, 2003 Dear Retail Provider  

E-Print Network [OSTI]

, electric service providers, irrigation districts, and cooperatives that serve California consumers. 1997, ch.796, § 1) and implementing regulations regarding retail disclosure. All retail providers of electricity including, but not limited to investor-owned utilities, publicly owned electric utilities

313

On-line Load Balancing for Related Machines 1 Piotr Berman  

E-Print Network [OSTI]

s and Load(s), the load of entire schedule s as follows: load(s;i) = 1 vi X s(j)=i pj; Load(s) = maxi loadOn-line Load Balancing for Related Machines 1 (Revised Version) Piotr Berman The Pennsylvania State for this problem. Key Words: on-line algorithm, load balancing, related machines, competitive ratio 1A preliminary

Eckmiller, Rolf

314

Dielectric breakdown model for conductor-loaded and insulator-loaded composite materials P. Bergero,1  

E-Print Network [OSTI]

Dielectric breakdown model for conductor-loaded and insulator-loaded composite materials P. Bergero strength is highly desirable, and in the past years composite materials such as resin matrix filled- tors, and composites containing carbon black and titanium dioxide have recently been tested

Peruani, Fernando

315

Reconstruction of a wind turbine's endured load spectrum using a short-time load measurement  

E-Print Network [OSTI]

Reconstruction of a wind turbine's endured load spectrum using a short-time load measurement Abstract Wind turbines (WT) are normally designed for a service life (SL) of 20 years. In Germany, over safety. 1 Introduction A wind turbine (WT) is normally designed, tested and certified for a design life

Berlin,Technische Universität

316

Improved Load Distribution for Load Rating of Low-Fill Box Structures  

E-Print Network [OSTI]

. The distribution of live loads on the top slab of a box culvert plays a major role in determining the rating factor of the culvert. The current AASHTO guidelines do not consider the effects of pavements present above the fill while determining the load distribution...

Acharya, Raju

2012-12-31T23:59:59.000Z

317

Modality Effects on Cognitive Load and Performance in High-Load Information Presentation  

E-Print Network [OSTI]

INTRODUCTION Intelligent human-computer interfaces are often multimodal, i.e. the human-computer communications into the modality planning procedure for systems that support high-load human-computer interaction. Author Keywords-load information presenta- tion scenario. Mainly based on modality-related psychology theories, we selected five

Nijholt, Anton

318

Independent review of estimated load reductions for PJM's small customer load response pilot project  

E-Print Network [OSTI]

water heater (EWH) load control program operated as part of PJM Interconnection’s Demand ResponseDemand Response Economic and Emergency Load Response Programs Electric Thermal Storage Electric Water Heaterwater pumps and electric thermal storage space heaters. The CSP is also participating in PJM’s pilot Demand Response

Heffner, G.; Moezzi, M.; Goldman, C.

2004-01-01T23:59:59.000Z

319

Electric Drive Vehicle Demonstration and Vehicle Infrastructure...  

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

Ancillary services Grid studies Off peak price elasticity Distribution transformer loading Approach EVSE Utility PROJECT MANAGEMENT Project Staffing Complete...

320

Load attenuating passively adaptive wind turbine blade  

DOE Patents [OSTI]

A method and apparatus for improving wind turbine performance by alleviating loads and controlling the rotor. The invention employs the use of a passively adaptive blade that senses the wind velocity or rotational speed, and accordingly modifies its aerodynamic configuration. The invention exploits the load mitigation prospects of a blade that twists toward feather as it bends. The invention includes passively adaptive wind turbine rotors or blades with currently preferred power control features. The apparatus is a composite fiber horizontal axis wind-turbine blade, in which a substantial majority of fibers in the blade skin are inclined at angles of between 15 and 30 degrees to the axis of the blade, to produces passive adaptive aeroelastic tailoring (bend-twist coupling) to alleviate loading without unduly jeopardizing performance.

Veers, Paul S. (Albuquerque, NM); Lobitz, Donald W. (Albuquerque, NM)

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

Load attenuating passively adaptive wind turbine blade  

DOE Patents [OSTI]

A method and apparatus for improving wind turbine performance by alleviating loads and controlling the rotor. The invention employs the use of a passively adaptive blade that senses the wind velocity or rotational speed, and accordingly modifies its aerodynamic configuration. The invention exploits the load mitigation prospects of a blade that twists toward feather as it bends. The invention includes passively adaptive wind turbine rotors or blades with currently preferred power control features. The apparatus is a composite fiber horizontal axis wind-turbine blade, in which a substantial majority of fibers in the blade skin are inclined at angles of between 15 and 30 degrees to the axis of the blade, to produces passive adaptive aeroelastic tailoring (bend-twist coupling) to alleviate loading without unduly jeopardizing performance.

Veers, Paul S.; Lobitz, Donald W.

2003-01-07T23:59:59.000Z

322

IN-SERVICE LOAD & RESISTANCE FACTOR RATING METHOD FOR BRIDGES  

E-Print Network [OSTI]

Stress Rating method (noted ASR in the following), Load Factor Rating method (noted LFR in the followingIN-SERVICE LOAD & RESISTANCE FACTOR RATING METHOD FOR BRIDGES Degang Li1 , Baidurya Bhattacharya2 are evaluated using allowable stress and load factor rating methods. Load rating made in these traditional

Bhattacharya, Baidurya

323

Randomized Load Balancing by Joining and Splitting Bins James Aspnes  

E-Print Network [OSTI]

Consider the following load balancing scenario: a certain amount of work load is distributed among a setRandomized Load Balancing by Joining and Splitting Bins James Aspnes Yitong Yin § 1 Introduction, one of the existing machines gives some of its load to the new machine; and upon a departure

Aspnes, James

324

Classification and forecasting of load curves Nolwen Huet  

E-Print Network [OSTI]

Classification and forecasting of load curves Nolwen Huet Abstract The load curve, which gives of electricity customer uses. This load curve is only available for customers with automated meter reading. For the others, EDF must estimate this curve. Usually a clustering of the load curves is performed, followed

Cuesta, Juan Antonio

325

Discharge indices for water quality loads Richard M. Vogel  

E-Print Network [OSTI]

: effective discharge, transport, sediment, constituents, rating curve, half-load Citation: Vogel, R. M., J. RDischarge indices for water quality loads Richard M. Vogel Department of Civil and Environmental load is ultimately the quantity of interest, we define a new index, the half-load discharge, which

Vogel, Richard M.

326

ANALYTICAL APPROACH TO TRANSIENT HEAT CONDUCTION IN COOLING LOAD CALCULATIONS  

E-Print Network [OSTI]

equation in cooling load calculations. The performance of nine different procedures (the four methods and

Michal Duška; Martin Barták; František Drkal; Jan Hensen

327

Demand-Side Response from Industrial Loads  

SciTech Connect (OSTI)

Through a research study funded by the Department of Energy, Smart Grid solutions company ENBALA Power Networks along with the Oak Ridge National Laboratory (ORNL) have geospatially quantified the potential flexibility within industrial loads to leverage their inherent process storage to help support the management of the electricity grid. The study found that there is an excess of 12 GW of demand-side load flexibility available in a select list of top industrial facilities in the United States. Future studies will expand on this quantity of flexibility as more in-depth analysis of different industries is conducted and demonstrations are completed.

Starke, Michael R [ORNL; Alkadi, Nasr E [ORNL; Letto, Daryl [Enbala Power Networks; Johnson, Brandon [University of Tennessee, Knoxville (UTK); Dowling, Kevin [University of Tennessee, Knoxville (UTK); George, Raoule [Enbala Power Networks; Khan, Saqib [University of Texas, Austin

2013-01-01T23:59:59.000Z

328

Taking a Bite out of Lighting Loads  

E-Print Network [OSTI]

Take a Bite Out of Lighting Loads With LEDs Stephen Williams Toshiba Sales Support Manager ESL-KT-13-12-34 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Some LED Advantages • Less electricity ? 18w LED... = 100w PAR38 • No maintenance for years ? 50,000 LED vs.10,000 CFL • Improved light quality ? 80 CRI LED vs. 25 CRI HPS • Reduce HVAC cooling load • Advanced control options ESL-KT-13-12-34 CATEE 2013: Clean Air Through Energy Efficiency Conference, San...

Williams, S.

2013-01-01T23:59:59.000Z

329

Technical and economic assessment of fluidized-bed-augmented compressed-air energy-storage system: system load following capability  

SciTech Connect (OSTI)

The load-following capability of fluidized bed combustion-augmented compressed air energy storage systems was evaluated. The results are presented in two parts. The first part is an Executive Summary which provides a concise overview of all major elements of the study including the conclusions, and, second, a detailed technical report describing the part-load and load following capability of both the pressurized fluid bed combustor and the entire pressurized fluid bed combustor/compressed air energy storage system. The specific tasks in this investigation were to: define the steady-state, part-load operation of the CAES open-bed PFBC; estimate the steady-state, part-load performance of the PFBC/CAES system and evaluate any possible operational constraints; simulate the performance of the PFBC/CAES system during transient operation and assess the load following capability of the system; and establish a start-up procedure for the open-bed PFBC and evaluate the impact of this procedure. The conclusions are encouraging and indicate that the open-bed PFBC/CAES power plant should provide good part-load and transient performance, and should have no major equipment-related constraints, specifically, no major problems associated with the performance or design of either the open-end PFBC or the PFBC/CAES power plant in steady-state, part-load operation are envisioned. The open-bed PFBC/CAES power plant would have a load following capability which would be responsive to electric utility requirements for a peak-load power plant. The open-bed PFBC could be brought to full operating conditions within 15 min after routine shutdown, by employing a hot-start mode of operation. The PFBC/CAES system would be capable of rapid changes in output power (12% of design load per minute) over a wide output power range (25% to 100% of design output). (LCL)

Lessard, R.D.; Blecher, W.A.; Merrick, D.

1981-09-01T23:59:59.000Z

330

Neurocontrol of Pressurized Water Reactors in Load-Follow Operations  

SciTech Connect (OSTI)

The neurocontrol technique was applied to control a pressurized water reactor (PWR) in load-follow operations. Generalized learning or direct inverse control architecture was adopted in which the neural network was trained off-line to learn the inverse model of the PWR. Two neural network controllers were designed: One provided control rod position, which controlled the axial power distribution, and the other provided the change in boron concentration, which adjusted core total power. An additional feedback controller was designed so that power tracking capability was improved. The time duration between control actions was 15 min; thus, the xenon effect is limited and can be neglected. Therefore, the xenon concentration was not considered as a controller input variable, which simplified controller design. Center target strategy and minimum boron strategy were used to operate the reactor, and the simulation results demonstrated the effectiveness and performance of the proposed controller.

Lin Chaung; Shen Chihming

2000-12-15T23:59:59.000Z

331

A Note on Online Load Balancing for Related Machines  

E-Print Network [OSTI]

(j) that will execute it. We define the load of a machine i and the load of entire schedule s as follows: load(s; i) = 1A Note on On­line Load Balancing for Related Machines Piotr Berman \\Lambda Marek Karpinski y that differ in speed but are related in the following sence: a job of size p requires time p=v on a machine

Eckmiller, Rolf

332

Provides Total Tuition Charge to Source Contribution  

E-Print Network [OSTI]

,364 TGR 4-20 0-3 2,871 2,871 - * Separately, 10% and 40% appointments do not provide tuition allowance

Kay, Mark A.

333

Community Renewable Energy Deployment Provides Replicable Examples...  

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

million in funding from DOE for an integrated renewable energy deployment plan using a biogas generation facility and solar photovoltaics (PV) to provide heating, cooling, and...

334

Analysis of the Load Impacts and Economic  

E-Print Network [OSTI]

of the Time of Use (TOU) rate plan, called "Analysis of the Load Impacts and Economic Benefits model. The TOU data was rerun through the new spreadsheet model and the results are reported here. · Participation in the TOU rate option also resulted in an average net reduction of 292 kWh/year in annual

335

Improving Electric Load Forecasts Using Network Committees  

E-Print Network [OSTI]

, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia Address for corresponding author: Dr. R. E. Abdel-Aal P. O. Box 1759 KFUPM Dhahran 31261 Saudi Arabia e-mail: radwan load and weather data at power utilities has encouraged the use of data-based machine learning modeling

Abdel-Aal, Radwan E.

336

Fig. 1. Example System phase loads  

E-Print Network [OSTI]

power system (SPS) consists of various components such as generators, cables, switchboards, load centers Transformer 9 25 12 Alternate path Generator switchboard Bus-tie breaker Generator 1 Generator 3 Generator 2 4 26 G 29 7 8 ABT 3 single phase cables Visualization for Shipboard Power Systems Karen L. Butler

337

Load forecast and treatment of conservation  

E-Print Network [OSTI]

conservation is implicitly incorporated in the short-term demand forecast? #12;3 Incorporating conservationLoad forecast and treatment of conservation July 28th 2010 Resource Adequacy Technical Committee in the short-term model Our short-term model is an econometric model which can not explicitly forecast

338

Valve for fuel pin loading system  

DOE Patents [OSTI]

A cyclone valve surrounds a wall opening through which cladding is projected. An axial valve inlet surrounds the cladding. Air is drawn through the inlet by a cyclone stream within the valve. An inflatable seal is included to physically engage a fuel pin subassembly during loading of fuel pellets.

Christiansen, D.W.

1984-01-01T23:59:59.000Z

339

Valve for fuel pin loading system  

DOE Patents [OSTI]

A cyclone valve surrounds a wall opening through which cladding is projected. An axial valve inlet surrounds the cladding. Air is drawn through the inlet by a cyclone stream within the valve. An inflatable seal is included to physically engage a fuel pin subassembly during loading of fuel pellets.

Christiansen, David W. (Kennewick, WA)

1985-01-01T23:59:59.000Z

340

Fuel loading and homogeneity analysis of HFIR design fuel plates loaded with uranium silicide fuel  

SciTech Connect (OSTI)

Twelve nuclear reactor fuel plates were analyzed for fuel loading and fuel loading homogeneity by measuring the attenuation of a collimated X-ray beam as it passed through the plates. The plates were identical to those used by the High Flux Isotope Reactor (HFIR) but were loaded with uranium silicide rather than with HFIR`s uranium oxide fuel. Systematic deviations from nominal fuel loading were observed as higher loading near the center of the plates and underloading near the radial edges. These deviations were within those allowed by HFIR specifications. The report begins with a brief background on the thermal-hydraulic uncertainty analysis for the Advanced Neutron Source (ANS) Reactor that motivated a statistical description of fuel loading and homogeneity. The body of the report addresses the homogeneity measurement techniques employed, the numerical correction required to account for a difference in fuel types, and the statistical analysis of the resulting data. This statistical analysis pertains to local variation in fuel loading, as well as to ``hot segment`` analysis of narrow axial regions along the plate and ``hot streak`` analysis, the cumulative effect of hot segment loading variation. The data for all twelve plates were compiled and divided into 20 regions for analysis, with each region represented by a mean and a standard deviation to report percent deviation from nominal fuel loading. The central regions of the plates showed mean values of about +3% deviation, while the edge regions showed mean values of about {minus}7% deviation. The data within these regions roughly approximated random samplings from normal distributions, although the chi-square ({chi}{sup 2}) test for goodness of fit to normal distributions was not satisfied.

Blumenfeld, P.E.

1995-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

U.S. Department of Energy Idaho National Engineering and Environmental...  

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

and its ancillary equipment. The ancillary equipment includes the waste feed system, the air pollution control system, and the ash removal system. The following provides a brief...

342

UNLV HUMAN RESOURCES Benefit Provider Listing  

E-Print Network [OSTI]

Program (PEBP) www.pebp.state.nv.us (800) 326-5496 PPO Plan Claims administrator (HealthScope) www.healthscopebenefits.com (888) 763-8232 In state Provider Network www.pebpstatewideppo.com (800) 336-0123 Out-of-State Provider Network (First Health Network) firsthealth.coventryhealthcare.com (800) 226-5116 Pre-certifications (APS

Hemmers, Oliver

343

Parameter sensitivity analysis of tailored-pulse loading stimulation of Devonian gas shale  

SciTech Connect (OSTI)

An evaluation of three tailored-pulse loading parameters has been undertaken to access their importance in gas well stimulation technology. This numerical evaluation was performed using STEALTH finite-difference codes and was intended to provide a measure of the effects of various tailored-pulse load configurations on fracture development in Devonian gas shale. The three parameters considered in the sensitivity analysis were: loading rate; decay rate; and sustained peak pressures. By varying these parameters in six computations and comparing the relative differences in fracture initiation and propagation the following conclusions were drawn: (1) Fracture initiation is directly related to the loading rate aplied to the wellbore wall. Loading rates of 10, 100 and 1000 GPa/sec were modeled. (2) If yielding of the rock can be prevented or minimized, by maintaining low peak pressures in the wellbore, increasing the pulse loading rate, to say 10,000 GPa/sec or more, should initiate additional multiple fractures. (3) Fracture initiation does not appear to be related to the tailored-pulse decay rate. Fracture extension may be influenced by the rate of decay. The slower the decay rate, the longer the crack extension. (4) Fracture initiation does not appear to be improved by a high pressure plateau in the tailored-pulse. Fracture propagation may be enhanced if the maintained wellbore pressure plateau is of sufficient magnitude to extent the range of the tangential tensile stresses to greater radial distances. 26 figures, 2 tables.

Barbour, T.G.; Mihalik, G.R.

1980-11-01T23:59:59.000Z

344

Modularization and simulation techniques for heat balance-based energy and load calculation  

E-Print Network [OSTI]

the Loads Toolkit research project is to obtain a heat balance based load calculation procedure that

Richard K. Strand

2001-01-01T23:59:59.000Z

345

Measured electric hot water standby and demand loads from Pacific Northwest homes  

SciTech Connect (OSTI)

The Bonneville Power Administration began the End-Use Load and Consumer Assessment Program (ELCAP) in 1983 to obtain metered hourly end-use consumption data for a large sample of new and existing residential and commercial buildings in the Pacific Northwest. Loads and load shapes from the first 3 years of data fro each of several ELCAP residential studies representing various segments of the housing population have been summarized by Pratt et al. The analysis reported here uses the ELCAP data to investigate in much greater detail the relationship of key occupant and tank characteristics to the consumption of electricity for water heating. The hourly data collected provides opportunities to understand electricity consumption for heating water and to examine assumptions about water heating that are critical to load forecasting and conservation resource assessments. Specific objectives of this analysis are to: (A) determine the current baseline for standby heat losses by determining the standby heat loss of each hot water tank in the sample, (B) examine key assumptions affecting standby heat losses such as hot water temperatures and tank sizes and locations, (C) estimate, where possible, impacts on standby heat losses by conservation measures such as insulating tank wraps, pipe wraps, anticonvection valves or traps, and insulating bottom boards, (D) estimate the EF-factors used by the federal efficiency standards and the nominal R-values of the tanks in the sample, (E) develop estimates of demand for hot water for each home in the sample by subtracting the standby load from the total hot water load, (F) examine the relationship between the ages and number of occupants and the hot water demand, (G) place the standby and demand components of water heating electricity consumption in perspective with the total hot water load and load shape.

Pratt, R.G.; Ross, B.A.

1991-11-01T23:59:59.000Z

346

Seismic considerations in the evaluation of temporary loads  

SciTech Connect (OSTI)

Temporary loads in nuclear power facilities can result from a number of activities including special one time operating conditions, repair and upgrade conditions, and ALARA requirements for operation, inspection and maintenance. Many times evaluation of these loadings includes their consideration in conjunction with other design basis loadings such as normal loads and extreme event loads including earthquake loadings. At times this combination with design basis extreme loads, such as earthquake, results in predicted structural demands which exceed the design basis capacity. Many times a major contributor to this demand prediction is the earthquake loadings. Discussed in this paper are analytical methods, probabilistic considerations, and earthquake experienced based evaluations which can be applied to reduce the earthquake demand for short term temporary loadings.

Adams, T.M. [Stevenson and Associates, Cleveland, OH (United States); Stevenson, J.D.

1996-12-01T23:59:59.000Z

347

Condensation Risk in a Room with High Latent Load and Chilled Ceiling  

E-Print Network [OSTI]

proposed a new ventilation system with radiant cooling panel and air supplied from a liquid desiccant dehumidification system, which provided very dry supply air and chilled water for radiant cooling. This study usedCondensation Risk in a Room with High Latent Load and Chilled Ceiling Panel and with Air Supplied

Chen, Qingyan "Yan"

348

HANFORD DOUBLE SHELL TANK (DST) THERMAL & SEISMIC PROJECT SUMMARY OF COMBINED THERMAL & OPERATING LOADS  

SciTech Connect (OSTI)

This report summarizes the results of the Double-Shell Tank Thermal and Operating Loads Analysis (TOLA) combined with the Seismic Analysis. This combined analysis provides a thorough, defensible, and documented analysis that will become a part of the overall analysis of record for the Hanford double-shell tanks (DSTs).

MACKEY, T.C.

2006-03-17T23:59:59.000Z

349

Variability of Behaviour in Electricity Load Profile Clustering; Who Does Things at the  

E-Print Network [OSTI]

Variability of Behaviour in Electricity Load Profile Clustering; Who Does Things at the Same Time://ima.ac.uk/dent 2 The James Hutton Institute, Aberdeen, UK Abstract. UK electricity market changes provide opportunities to alter households' electricity usage patterns for the benefit of the overall elec- tricity

Aickelin, Uwe

350

Providing the Scientific Foundations for Environmental Management  

E-Print Network [OSTI]

waste and process con- ditions enables decisions around new treatment operations. These decisions could at Hanford's Waste Treatment Plant (WTP). Using a combination of bench-, engineering-, and pilotProviding the Scientific Foundations for Environmental Management #12;Advancements in scientific

351

ACTUARIAL VALUATION OF BENEFITS PROVIDED UNDER THE  

E-Print Network [OSTI]

.........................................................................................................................................6 Section 5. ACTUARIAL VALUATION METHODS AND ASSUMPTIONS - PENSION PLAN LIABILITIES.......................................................................................9 Table 6 ­ ACTUARIAL ASSUMPTIONS AND COST METHOD ADOPTED IN CONDUCTING THE VALUATION OF THE DALHOUSIEACTUARIAL VALUATION OF BENEFITS PROVIDED UNDER THE DALHOUSIE UNIVERSITY STAFF PENSION PLAN

Lotze, Heike K.

352

Provides Total Tuition Charge to Source Contribution  

E-Print Network [OSTI]

,200 6,120 4,080 TGR 4-20 0-3 2,871 2,871 - % of time appointed Hours of Work/Week Units TAL Provides

Kay, Mark A.

353

Provides Total Tuition Charge to Source Contribution  

E-Print Network [OSTI]

,262 1,938 TGR 4-20 0-3 2,871 2,871 - % of time appointed Hours of Work/Week Units TAL Provides Total

Kay, Mark A.

354

Preparer's Name: _____________________________________ INDIVIDUAL SERVICE PROVIDER DOCUMENTATION FORM  

E-Print Network [OSTI]

the qualifications of an independent contractor. 4. Service has been completed and provider is entitled to payment. 5, or resulting from any acts or omissions of contractor or any agent, employee, subcontractor, or supplier

O'Toole, Alice J.

355

US ITER Project Providing a Facility for  

E-Print Network [OSTI]

US ITER Project Providing a Facility for Burning Plasma Research Ned Sauthoff Project Manager, US to position the US for Burning Plasma Research #12;U.S. ITER / Sauthoff Slide 2 Structure of the Talk... ITER

356

Alternative Energy Provides a Second Wind  

E-Print Network [OSTI]

This report provides information for communities and other interested stakeholders about the development of wind energy at former mining sites. Local governments, residents and organizations may be interested in creating renewable energy resources and new economic opportunities at these sites. The report describes the mechanics of wind energy, details the various wind technology options, explores wind energy’s environmental, economic and social impacts at mining sites, and provides case studies and next steps to help get projects in place.

unknown authors

357

Providing Minute-to-Minute Regulation from Wind Plants: Preprint  

SciTech Connect (OSTI)

In this paper, we extend the previous analysis using time series data from existing wind plants, system loads, and regulation and energy markets.

Kirby, B.; Milligan, M.; Ela, E.

2010-10-01T23:59:59.000Z

358

Methods for Analyzing Electric Load Shape and its Variability  

SciTech Connect (OSTI)

Current methods of summarizing and analyzing electric load shape are discussed briefly and compared. Simple rules of thumb for graphical display of load shapes are suggested. We propose a set of parameters that quantitatively describe the load shape in many buildings. Using the example of a linear regression model to predict load shape from time and temperature, we show how quantities such as the load?s sensitivity to outdoor temperature, and the effectiveness of demand response (DR), can be quantified. Examples are presented using real building data.

Price, Philip

2010-05-12T23:59:59.000Z

359

Deterministic Josephson Vortex Ratchet with a load  

E-Print Network [OSTI]

We investigate experimentally a deterministic underdamped Josephson vortex ratchet -- a fluxon-particle moving along a Josephson junction in an asymmetric periodic potential. By applying a sinusoidal driving current one can compel the vortex to move in a certain direction, producing average dc voltage across the junction. Being in such a rectification regime we also load the ratchet, i.e., apply an additional dc bias current I_dc (counterforce) which tilts the potential so that the fluxon climbs uphill due to the ratchet effect. The value of the bias current at which the fluxon stops climbing up defines the strength of the ratchet effect and is determined experimentally. This allows us to estimate the loading capability of the ratchet, the output power and efficiency. For the quasi-static regime we present a simple model which delivers simple analytic expressions for the above mentioned figures of merit.

M. Knufinke; K. Ilin; M. Siegel; D. Koelle; R. Kleiner; E. Goldobin

2011-09-29T23:59:59.000Z

360

From Packet to Power Switching: Digital Direct Load Scheduling  

E-Print Network [OSTI]

At present, the power grid has tight control over its dispatchable generation capacity but a very coarse control on the demand. Energy consumers are shielded from making price-aware decisions, which degrades the efficiency of the market. This state of affairs tends to favor fossil fuel generation over renewable sources. Because of the technological difficulties of storing electric energy, the quest for mechanisms that would make the demand for electricity controllable on a day-to-day basis is gaining prominence. The goal of this paper is to provide one such mechanisms, which we call Digital Direct Load Scheduling (DDLS). DDLS is a direct load control mechanism in which we unbundle individual requests for energy and digitize them so that they can be automatically scheduled in a cellular architecture. Specifically, rather than storing energy or interrupting the job of appliances, we choose to hold requests for energy in queues and optimize the service time of individual appliances belonging to a broad class whi...

Alizadeh, Mahnoosh; Thomas, Robert J

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

Low profile, high load vertical rolling positioning stage  

DOE Patents [OSTI]

A stage or support platform assembly for use in a synchrotron accurately positions equipment to be used in the beam line of the synchrotron. The support platform assembly includes an outer housing in which is disposed a lifting mechanism having a lifting platform or stage at its upper extremity on which the equipment is mounted. A worm gear assembly is located in the housing and is adapted to raise and lower a lifting shaft that is fixed to the lifting platform by an anti-binding connection. The lifting platform is moved vertically as the lifting shaft is moved vertically. The anti-binding connection prevents the shaft from rotating with respect to the platform, but does permit slight canting of the shaft with respect to the lifting platform so as to eliminate binding and wear due to possible tolerance mismatches. In order to ensure that the lifting mechanism does not move in a horizontal direction as it is moved vertically, at least three linear roller bearing assemblies are arranged around the outer-periphery of the lifting mechanism. One of the linear roller bearing assemblies can be adjusted so that the roller bearings apply a loading force against the lifting mechanism. Alternatively, a cam mechanism can be used to provide such a loading force.

Shu, Deming (Darien, IL); Barraza, Juan (Aurora, IL)

1996-01-01T23:59:59.000Z

362

Electricity pricing for conservation and load shifting  

SciTech Connect (OSTI)

The electricity industry is facing the challenge of increasing costs of reliably meeting demand growth and fully complying with legislative renewable portfolio standards and greenhouse gas reduction targets. However, an electric utility's existing tariffs often don't have rates that increase with consumption volume or vary by time of use, thus not fully exploiting the potential benefits from customer conservation and load shifting. (author)

Orans, Ren; Woo, C.K.; Horii, Brian; Chait, Michele; DeBenedictis, Andrew

2010-04-15T23:59:59.000Z

363

Batch load anaerobic digestion of dairy manure  

E-Print Network [OSTI]

and resource recovery. Anaerobic digestion of manure has re- ceived much attention as a method to reduce the pollution threat to the environment while reclaiming energy in the form of methane gas from the biomass. Currently there is one commercial anaerobic... production than the conventional process used in most studies to date. The objective of this research was to evaluate a batch load digestion process for methane production from dairy manure to determine the optimum influent total solids concentration...

Egg, Richard P

1979-01-01T23:59:59.000Z

364

Thermal loading considerations for synchrotron radiation mirrors  

SciTech Connect (OSTI)

Grazing incidence mirrors used to focus synchrotron radiation beams through small distant apertures have severe optical requirements. The surface distortion due to heat loading of the first mirror in a bending magnet beam line is of particular concern when a large fraction of the incident beam is absorbed. In this paper we discuss mirror design considerations involved in minimizing the thermal/mechanical loading on vertically deflecting first surface mirrors required for SPEAR synchrotron radiation beam lines. Topics include selection of mirror material and cooling method, the choice of SiC for the substrate, optimization of the thickness, and the design of the mirror holder and cooling mechanism. Results obtained using two-dimensional, finite-element thermal/mechanical distortion analysis are presented for the case of a 6/sup 0/ grazing incidence SiC mirror absorbing up to 260 W at Beam Line VIII on the SPEAR ring. Test descriptions and results are given for the material used to thermally couple this SiC mirror to a water-cooled block. The interface material is limited to applications for which the equivalent normal heat load is less than 20 W/cm/sup 2/.

Holdener, F.R.; Berglin, E.J.; Fuchs, B.A.; Humpal, H.H.; Karpenko, V.P.; Martin, R.W.; Tirsell, K.G.

1986-03-26T23:59:59.000Z

365

Assessing and Reducing Plug and Process Loads in Office Buildings (Brochure)  

SciTech Connect (OSTI)

Plug and process loads (PPLs) in commercial buildings account for almost 5% of U.S. primary energy consumption. Minimizing these loads is a primary challenge in the design and operation of an energy-efficient building. PPLs are not related to general lighting, heating, ventilation, cooling, and water heating, and typically do not provide comfort to the occupants. They use an increasingly large fraction of the building energy use pie because the number and variety of electrical devices have increased along with building system efficiency. Reducing PPLs is difficult because energy efficiency opportunities and the equipment needed to address PPL energy use in office spaces are poorly understood.

Not Available

2011-06-01T23:59:59.000Z

366

Assessing and Reducing Plug and Process Loads in Retail Buildings (Brochure)  

SciTech Connect (OSTI)

Plug and process loads (PPLs) in commercial buildings account for almost 5% of U.S. primary energy consumption. Minimizing these loads is a primary challenge in the design and operation of an energy-efficient building. PPLs are not related to general lighting, heating, ventilation, cooling, and water heating, and typically do not provide comfort to the occupants. They use an increasingly large fraction of the building energy use pie because the number and variety of electrical devices have increased along with building system efficiency. Reducing PPLs is difficult because energy efficiency opportunities and the equipment needed to address PPL energy use in retail spaces are poorly understood.

Not Available

2011-06-01T23:59:59.000Z

367

Update: Effective Load-Carrying Capability of Photovoltaics in the United States; Preprint  

SciTech Connect (OSTI)

This paper provides an update on the U.S. distribution of effective load-carrying capability (ELLC) for photovoltaics by analyzing recent load data from 39 U.S. utilities and time-coincident output of PV installations simulated from high-resolution, time/site-specific satellite data. Results show that overall regional trends identified in the early 1990s remain pertinent today, while noting a significant increase in PV ELCC in the western and northern United States, and a modest decrease in the central and eastern United States.

Perez, R.; Margolis, R.; Kmiecik, M.; Schwab, M.; Perez, M.

2006-06-01T23:59:59.000Z

368

Office Buildings: Assessing and Reducing Plug and Process Loads in Office Buildings (Fact Sheet)  

SciTech Connect (OSTI)

Plug and process loads (PPLs) in commercial buildings account for almost 5% of U.S. primary energy consumption. Minimizing these loads is a primary challenge in the design and operation of an energy-efficient building. PPLs are not related to general lighting, heating, ventilation, cooling, and water heating, and typically do not provide comfort to the occupants. They use an increasingly large fraction of the building energy use pie because the number and variety of electrical devices have increased along with building system efficiency. Reducing PPLs is difficult because energy efficiency opportunities and the equipment needed to address PPL energy use in office spaces are poorly understood.

Not Available

2013-04-01T23:59:59.000Z

369

Retail Buildings: Assessing and Reducing Plug and Process Loads in Retail Buildings (Fact Sheet)  

SciTech Connect (OSTI)

Plug and process loads (PPLs) in commercial buildings account for almost 5% of U.S. primary energy consumption. Minimizing these loads is a primary challenge in the design and operation of an energy-efficient building. PPLs are not related to general lighting, heating, ventilation, cooling, and water heating, and typically do not provide comfort to the occupants. They use an increasingly large fraction of the building energy use pie because the number and variety of electrical devices have increased along with building system efficiency. Reducing PPLs is difficult because energy efficiency opportunities and the equipment needed to address PPL energy use in retail spaces are poorly understood.

Not Available

2013-04-01T23:59:59.000Z

370

Method and apparatus for imparting strength to a material using sliding loads  

DOE Patents [OSTI]

A method of enhancing the strength of metals by affecting subsurface zones developed during the application of large sliding loads is disclosed. Stresses which develop locally within the near surface zone can be many times larger than those predicted from the applied load and the friction coefficient. These stress concentrations arise from two sources: (1) asperity interactions and (2) local and momentary bonding between the two surfaces. By controlling these parameters more desirable strength characteristics can be developed in weaker metals to provide much greater strength to rival that of steel, for example. 11 figs.

Hughes, D.A.; Dawson, D.B.; Korellis, J.S.

1999-03-16T23:59:59.000Z

371

Method and apparatus for imparting strength to a material using sliding loads  

DOE Patents [OSTI]

A method of enhancing the strength of metals by affecting subsurface zones developed during the application of large sliding loads. Stresses which develop locally within the near surface zone can be many times larger than those predicted from the applied load and the friction coefficient. These stress concentrations arise from two sources: 1) asperity interactions and 2) local and momentary bonding between the two surfaces. By controlling these parameters more desirable strength characteristics can be developed in weaker metals to provide much greater strength to rival that of steel, for example.

Hughes, Darcy Anne (Fremont, CA); Dawson, Daniel B. (Pleasanton, CA); Korellis, John S. (Livermore, CA)

1999-01-01T23:59:59.000Z

372

Method And Apparatus For Imparting Strength To Materials Using Sliding Loads  

DOE Patents [OSTI]

A method of enhancing the strength of metals by affecting subsurface zones developed during the application of large sliding loads. Stresses which develop locally within the near surface zone can be many times larger than those predicted from the applied load and the friction coefficient. These stress concentrations arise from two sources: 1) asperity interactions and 2) local and momentary bonding between the two surfaces. By controlling these parameters more desirable strength characteristics can be developed in weaker metals to provide much greater strength to rival that of steel, for example.

Hughes, Darcy Anne (Fremont, CA); Dawson, Daniel B. (Pleasanton, CA); Korellis, John S. (Livermore, CA)

1999-03-16T23:59:59.000Z

373

Method and apparatus for transferring and injecting rf energy from a generator to a resonant load  

DOE Patents [OSTI]

Improved apparatus and method are provided for the coherent amplification and injection of radio-frequency (rf) energy into a load cavity using a plurality of amplifier tubes. A plurality of strip line cavities (30, 32, 34, 36, 40, 42, 44) are laterally joined to define a continuous closed cavity (48), with an amplifier tube (50, 52, 54, 56, 58, 60, 62, 64) mounted within each resonant strip cavity. Rf energy is injected into the continuous cavity (48) from a single input (70) for coherent coupling to all of the amplifier tubes for amplification and injection into the load cavity (76).

Hoffert, William J. (Albuquerque, NM)

1987-01-01T23:59:59.000Z

374

Energy Efficient Geographical Load Balancing via Dynamic Deferral of Workload  

E-Print Network [OSTI]

Energy Efficient Geographical Load Balancing via Dynamic Deferral of Workload Muhammad Abdullah geographical load balancing techniques have been suggested for data centers hosting cloud computation in order to reduce energy cost by exploiting the electricity price differences across regions. However

Gupta, Rajesh

375

Assessing and Reducing Miscellaneous Electric Loads (MELs) in Lodging  

SciTech Connect (OSTI)

Miscellaneous electric loads (MELs) are the loads outside of a building's core functions of heating, ventilating, air conditioning, lighting, and water heating. This report reviews methods to reduce MELs in lodging.

Rauch, Emily M.

2011-09-01T23:59:59.000Z

376

Modeling and Estimating Current Harmonics of Variable Electronic Loads  

E-Print Network [OSTI]

This paper develops a model for relating input current harmonic content to real power consumption for variable electronic loads, specifically for loads' actively controlled inverters energized by an uncontrolled rectification ...

Wichakool, Warit

377

Cooling load differences between radiant and air systems  

E-Print Network [OSTI]

radiant heat transfer for cooling load calculation.heat gain is well recognized by cooling load calculationload calculation approach for radiant systems, Corgnati [17] also tackled the direct radiant heat

Feng, Jingjuan Dove; Schiavon, Stefano; Bauman, Fred

2013-01-01T23:59:59.000Z

378

Load Management and Houston Lighting and Power Co.  

E-Print Network [OSTI]

Defining Load Management as influencing of customer loads in order to shift the time use of electric power and energy, encompasses a broad spectrum of activities at Houston Lighting & Power Company. This paper describes those activities by directing...

Drawe, R. G.; Ramsay, I. M.

1984-01-01T23:59:59.000Z

379

February 8, 2002 Dear: Retail Provider  

E-Print Network [OSTI]

dates: Report/Filing Due Date 2001 Annual Retail Providers Report (to Energy Commission) March 1, 2002 2001 Annual Power Content Label (to Customers)i April 15, 2002 Independent Audit/Verification of 2001 Annual Power Content Label and Annual Report (to Energy Commission) June 1, 2002 As someone involved

380

The smallest artifacts provide the biggest clues  

E-Print Network [OSTI]

The smallest artifacts provide the biggest clues in unlocking the secrets of the Mardi Gras Year 2007-2008 Deep Water Excavation: Unlocking the Secrets of the Mardi Gras Shipwreck Monitoring New Zealand's Fjords Toxic Algal Blooms on the Texas Coast The Imaging Flowcytobot: Emerging Technology

Note: This page contains sample records for the topic "loads providing ancillary" 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

PROFILING SUBSTANCE ABUSE PROVIDER TRENDS IN  

E-Print Network [OSTI]

PROFILING SUBSTANCE ABUSE PROVIDER TRENDS IN HEALTH CARE DELIVERY SYSTEMS || James F. Burgess, Jr using several covariates. This is illustrated here in the context of sub- stance abuse care. One common process monitor for systems delivering substance abuse care is follow-up outpatient care within a certain

West, Mike

382

Market Statistics Data Provided by IRES, LLC  

E-Print Network [OSTI]

Colorado Region utilizing residential Multiple Listing Service data provided by Information Real Estate), an in-depth study of residential property values. The EREC HPI is based on Multiple Listing Service (MLS is extensively filtered to eliminate sales and listings of commercial properties, income producing properties

383

IBM Healthcare Industry Framework Provider Version  

E-Print Network [OSTI]

also called an internist to admit John overnight for observation. A Nuclear stress test was performed they care for patients and manage their performance. First, MRTAS helps providers automate the collection and analysis of structured and unstructured data, a manual process typically performed by a team of nurses

384

Ground water provides drinking water, irrigation for  

E-Print Network [OSTI]

Ground water provides drinking water, irrigation for crops and water for indus- tries. It is also connected to surface waters, and maintains the flow of rivers and streams and the level of wetlands- tion of those along Lake Michigan, most communi- ties, farms and industries still rely on ground water

Saldin, Dilano

385

Dedicated to providing of health professional faculty,  

E-Print Network [OSTI]

Dedicated to providing training of health professional faculty, students and practitioners in the diagnosis, treatment and prevention of disease, disability and other health problems related to our elderly;STATUTORY PURPOSES Improve the training of health professionals in geriatrics; Develop and disseminate

Mohaghegh, Shahab

386

Streamlining and Refining FEDS Loads Models - Final Report  

SciTech Connect (OSTI)

The Facility Energy Decision System (FEDS) software is a powerful buildings energy analysis tool developed by Battelle at the Pacific Northwest National Laboratory with support from numerous organizations including several within the U.S. Department of Energy (DOE) and U.S. Department of Defense (DoD). FEDS is used extensively throughout the federal sector to examine building energy efficiency potential and recommend energy saving retrofit projects. The focus of this CRADA was to update the foundation of the FEDS loads models, to improve the core functionality and calculation methods and position the building efficiency analysis software for continued growth. The broader intent was to increase FEDS utility and user satisfaction via improving modeling accuracy, facilitating development and making possible a wide range of new and desired capability enhancements. This report provides an summary of the various tasks performed under the CRADA.

Dahowski, Robert T.; Dirks, James A.

2013-02-05T23:59:59.000Z

387

Method of burning lightly loaded coal-water slurries  

DOE Patents [OSTI]

In a preferred arrangement of the method of the invention, a lightly loaded coal-water slurry, containing in the range of approximately 40% to 52% + 2% by weight coal, is atomized to strip water from coal particles in the mixture. Primary combustor air is forced around the atomized spray in a combustion chamber of a combustor to swirl the air in a helical path through the combustion chamber. A flame is established within the combustion chamber to ignite the stripped coal particles, and flame temperature regulating means are provided for maintaining the flame temperature within a desired predetermined range of temperatures that is effective to produce dry, essentially slag-free ash from the combustion process.

Krishna, C.R.

1984-07-27T23:59:59.000Z

388

Customer Load Eligibility Guidelines (CLEG), June 26, 2013  

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

Incidental andor IrrigationPumping, and Commercial Processing Loads on a Single Meter. ... 4 5.2.4. Incidental...

389

Architectural Surety Applications for Building Response to Dynamic Loads  

SciTech Connect (OSTI)

This paper provides a summary introduction to the emerging area of Architectural Surety{trademark} applications for buildings and infrastructures that are subjected to dynamic loads from blast and naturally occurring events. This technology area has been under investigation to assist with the definition of risks associated with dynamic loads and to provide guidance for determining the required upgrading and retrofitting techniques suggested for reducing building and infrastructure vulnerabilities to such dynamic forces. This unique approach involves the application of risk management techniques for solving problems of the as-built environment through the application of security, safety, and reliability principles developed in the nuclear weapons programs of the United States Department of Energy (DOE) and through the protective structures programs of the German Ministry of Defense (MOD). The changing responsibilities of engineering design professionals are addressed in light of the increased public awareness of structural and facility systems' vulnerabilities to malevolent, normal, and abnormal environment conditions. Brief discussions are also presented on (1) the need to understand how dynamic pressures are affected by the structural failures they cause, (2) the need to determine cladding effects on columns, walls, and slabs, and (3) the need to establish effective standoff distance for perimeter barriers. A summary description is presented of selected technologies to upgrade and retrofit buildings by using high-strength concrete and energy-absorbing materials and by specifying appropriately designed window glazing and special masonry wall configurations and composites. The technologies, material performance, and design evaluation procedures presented include super-computational modeling and structural simulations, window glass fragmentation modeling, risk assessment procedures, instrumentation and health monitoring systems, three-dimensional CAD virtual reality visualization techniques, and material testing data.

Matalucci, R.V.; Mayrhofer, C.

1999-02-10T23:59:59.000Z

390

On the Minimum Load Coloring Problem --Extended Abtract--  

E-Print Network [OSTI]

# such that the maximum load, l # := max{r# , b #}, is minimized. In the following we shall skip the term ``maximumOn the Minimum Load Coloring Problem --Extended Abtract-- Nitin Ahuja 1 , Andreas Baltz 2 Abstract. Given a graph G = (V, E) with n vertices, m edges and maximum vertex degree #, the load

Doerr, Benjamin

391

Simultaneous confidence bands in curve prediction applied to load curves  

E-Print Network [OSTI]

Simultaneous confidence bands in curve prediction applied to load curves J.M. Aza¨is1, S. Bercu2, J, load curve. 1 Introduction In curve prediction, one is generally interested in deriving simultaneous this technique in the numerical context of load curve pre- diction: power producers like EDF, the electrical

Boyer, Edmond

392

Numerical Simulation of Wave Loads on Static Offshore Structures  

E-Print Network [OSTI]

Numerical Simulation of Wave Loads on Static Offshore Structures Hrvoje Jasak, Inno Gatin, Vuko Workshop, Cambridge, 30 July 2014 Numerical Simulation of Wave Loads on Static Offshore Structures ­ p. #12 of Wave Loads on Static Offshore Structures ­ p. #12;VOF Free Surface Flow Model Modelling of Free Surface

393

Coupling Wind Generation with Controllable Load and Storage  

E-Print Network [OSTI]

Coupling Wind Generation with Controllable Load and Storage: A Time-Series Application of the Super Electric Energy System #12;Coupling Wind Generation with Controllable Load and Storage: A Time Wind Generation with Controllable Load and Storage: A Time-Series Application of the SuperOPF." (PSERC

394

THERMAL LOADING OF A DIRECT DRIVE TARGET IN  

E-Print Network [OSTI]

optics. A background gas, such as Xe, could reduce the damage on the wall from ion and heat loading fusion micro explosion (~ 10 Hz), ions and heat loads threaten to damage the reactor wall and driver. · The thermal loading of a target (radiation from the chamber wall and convection from the protective gas) may

Raffray, A. René

395

Guide to Dowel LoadTransfer Systems for Jointed Concrete  

E-Print Network [OSTI]

Guide to Dowel LoadTransfer Systems for Jointed Concrete Roadway Pavements TECH BRIEF SEPTEMBER 2011 #12;#12;GUIDE TO DOWEL LOAD TRANSFER SYSTEMS FOR JOINTED CONCRETE ROADWAY PAVEMENTS i Technical and Subtitle Guide to Dowel Load Transfer Systems for Jointed Concrete Roadway Pavements 5. Report Date

396

AIAA980057 RELATING TURBULENCE TO WIND TURBINE BLADE LOADS  

E-Print Network [OSTI]

AIAA­98­0057 RELATING TURBULENCE TO WIND TURBINE BLADE LOADS: PARAMETRIC STUDY WITH MULTIPLE that is most useful in estimating fatigue loads on wind turbine blades. The histograms of rainflow counted turbulence measures---can be used to estimate fatigue loads on wind turbine blades. We first de­ scribe

Sweetman, Bert

397

Load Alleviation on Wind Turbine Blades using Variable Airfoil Geometry  

E-Print Network [OSTI]

Load Alleviation on Wind Turbine Blades using Variable Airfoil Geometry Peter Bjřrn Andersen, Mac Loads, Trailing Edge Flaps, PID control, Signal Noise. 1 Introduction Wind turbine blades are subject to 40% when signal noise is added to the control. Keywords: Wind Turbine, Load Alleviation, Fatigue

398

Design Loads for Wind Turbines using the Environmental Contour Method  

E-Print Network [OSTI]

Design Loads for Wind Turbines using the Environmental Contour Method Korn Saranyasoontorn, TX 78712 When interest is in establishing ultimate design loads for wind turbines such that a service). The parametric conditional load distri- butions require extensive turbine response simulations over the entire

Manuel, Lance

399

Extreme Loads for an Offshore Wind Turbine using Statistical  

E-Print Network [OSTI]

Extreme Loads for an Offshore Wind Turbine using Statistical Extrapolation from Limited Field Data,itiscommontoeithercarry out extensive simulation studies or undertake a field measurement campaign. At the Blyth offshore wind here is to estimate extreme loads for an offshore wind turbine for which the environmental and load

Manuel, Lance

400

PARAMETRIC MODELS FOR ESTIMATING WIND TURBINE FATIGUE LOADS FOR DESIGN  

E-Print Network [OSTI]

loads. #12;2 INTRODUCTION Design constraints for wind turbine structures fall into either extreme load1 PARAMETRIC MODELS FOR ESTIMATING WIND TURBINE FATIGUE LOADS FOR DESIGN Lance Manuel1 Paul S, TX 78712 2 Sandia National Laboratories, Wind Energy Technology Department, Albuquerque, NM 87185

Sweetman, Bert

Note: This page contains sample records for the topic "loads providing ancillary" 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

The Load Distribution Problem in a Processor Ring Francis C.M. Lau  

E-Print Network [OSTI]

the load balancing procedure into the following phases: load measurement, calculation of load averageThe Load Distribution Problem in a Processor Ring Francis C.M. Lau Department of Computer Science picture of the system load and the average load, the load distribution problem is to find a suitable

Lau, Francis C.M.

402

Aggregated Modeling and Control of Air Conditioning Loads for Demand Response  

SciTech Connect (OSTI)

Demand response is playing an increasingly important role in the efficient and reliable operation of the electric grid. Modeling the dynamic behavior of a large population of responsive loads is especially important to evaluate the effectiveness of various demand response strategies. In this paper, a highly-accurate aggregated model is developed for a population of air conditioning loads. The model effectively includes statistical information of the population, systematically deals with load heterogeneity, and accounts for second-order dynamics necessary to accurately capture the transient dynamics in the collective response. Based on the model, a novel aggregated control strategy is designed for the load population under realistic conditions. The proposed controller is fully responsive and achieves the control objective without sacrificing end-use performance. The proposed aggregated modeling and control strategies are validated through realistic simulations using GridLAB-D. Extensive simulation results indicate that the proposed approach can effectively manage a large number of air conditioning systems to provide various demand response services, such as frequency regulation and peak load reduction.

Zhang, Wei; Lian, Jianming; Chang, Chin-Yao; Kalsi, Karanjit

2013-06-21T23:59:59.000Z

403

Rotordynamic coefficients for a load-between-pad, flexible-pivot tilting pad bearing at high loads  

E-Print Network [OSTI]

The dynamic and static performance of a flexure-pivot tilting pad bearing is presented at a load between pad configuration for various load and speed combinations. A similar work performed on the same bearing at lower loads ranging from 0-1 MPa (0...

Hensley, John Eric

2006-10-30T23:59:59.000Z

404

Performance of Geogrid Reinforced Ballast under Dynamic Loading  

E-Print Network [OSTI]

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

Jowkar, Milad

2011-12-31T23:59:59.000Z

405

Impact of self-attraction and loading on the annual cycle in sea level  

E-Print Network [OSTI]

load and inferred ocean load following the SAL adjustment.following analysis, we assume that the Earth’s response to the changing continental loads

Tamisiea, M. E; Hill, E. M; Ponte, R. M; Davis, J. L; Velicogna, I.; Vinogradova, N. T

2010-01-01T23:59:59.000Z

406

Renewable Energy Providers | Open Energy Information  

Open Energy Info (EERE)

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

407

Modeling of highly loaded fluorescent lamps  

SciTech Connect (OSTI)

Numerical modeling of the positive column of fluorescent lamps under conditions of high current density are of current interest, particularly in view of recent developments in electrodeless lamps. Current models tend to overestimate radiation output, and consequently the maintenance electric field in these discharges. Under highly loaded conditions, mercury-rare gas fluorescent lamps exhibit strong mercury depletion on axis (cataphoresis), and an understanding of resonance radiation transport under these conditions is therefore vital to the development of models with a predictive capability. The authors have explored the effect of radial cataphoresis on resonance radiation trapping for situations in which the radiation transport is dominated by foreign gas broadening, Doppler broadening, or resonance collisional broadening of the spectral line. Several different production rates per unit volume of resonance (excited) atoms have also been studied. It is advantageous in many cases to parameterize the trapped decay rate in terms of the total number of ground state atoms in the positive column independent of their radial distribution. The results of this work have been included in a numerical model of the positive column and the predicted influence on discharge parameters will be presented for cases of interest to highly loaded lamps.

Lister, G.G.; Lawler, J.E.; Curry, J.J.

1999-07-01T23:59:59.000Z

408

SAPHIRE 8 Volume 7 - Data Loading  

SciTech Connect (OSTI)

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) is a software application developed for performing a complete probabilistic risk assessment (PRA) using a personal computer. SAPHIRE Version 8 is funded by the U.S. Nuclear Regulatory Commission and developed by the Idaho National Laboratory. This report is intended to assist the user to enter PRA data into the SAPHIRE program using the built-in MAR-D ASCII-text file data transfer process. Towards this end, a small sample database is constructed and utilized for demonstration. Where applicable, the discussion includes how the data processes for loading the sample database relate to the actual processes used to load a larger PRA models. The procedures described herein were developed for use with SAPHIRE Version 8. The guidance specified in this document will allow a user to have sufficient knowledge to both understand the data format used by SAPHIRE and to carry out the transfer of data between different PRA projects.

K. J. Kvarfordt; S. T. Wood; C. L. Smith; S. R. Prescott

2011-03-01T23:59:59.000Z

409

A new generation of load sharing algorithms: the semi-adaptive load sharing algorithm  

E-Print Network [OSTI]

: Wael, Omar, Tamer, Ashraf and Hazem, who were always there for me. Your support and comfort have given me the strength to go through all the bad times. TABLE OF CONTENTS CHAPTER Page INTRODUCTION A. What is Load Sharing? B. Thesis Outline 2 4...

Morsy, Hazem Kamal

1997-01-01T23:59:59.000Z

410

Provides Total Tuition Charge to Source Contribution  

E-Print Network [OSTI]

Contribution 10 4 * 1,914 1,550 364 15 6 3 2,871 2,326 545 20 8 4 3,828 3,101 727 25 10 5 4,785 3,876 909 30 12,752 1,818 TGR 4-20 0-3 2,871 2,871 - % of time appointed Hours of Work/Week Units TAL Provides Total,742 4,651 1,091 75 30 5 4,785 3,876 909 80 32 4 3,828 3,101 727 85 34 3 2,871 2,326 545 90 36 3 2,871 2

Kay, Mark A.

411

Variable Renewable Generation can Provide Balancing Control to the Electric Power System (Fact Sheet)  

SciTech Connect (OSTI)

As wind and solar plants become more common in the electric power system, they may be called on to provide grid support services to help maintain system reliability. For example, through the use of inertial response, primary frequency response, and automatic generation control (also called secondary frequency response), wind power can provide assistance in balancing the generation and load on the system. These active power (i.e., real power) control services have the potential to assist the electric power system in times of disturbances and during normal conditions while also potentially providing economic value to consumers and variable renewable generation owners. This one-page, two-sided fact sheet discusses the grid-friendly support and benefits renewables can provide to the electric power system.

Not Available

2013-09-01T23:59:59.000Z

412

2001Notes2Providers.doc -1-Notes to Retail Providers  

E-Print Network [OSTI]

Report Filing Pursuant to Section 398.5 of the Public Utilities Code and Section 1394 of Title 20 of quarterly labels or an Annual Report, please call us at one of the numbers provided below. The Annual Report must contain the following information: 1) The registered electric service provider Identification

413

Piezoelectric film load cell robot collision detector  

DOE Patents [OSTI]

A piezoelectric load cell which can be utilized for detecting collisions and obstruction of a robot arm end effector includes a force sensing element of metallized polyvinylidene fluoride (PVDF) film. The piezoelectric film sensing element and a resilient support pad are clamped in compression between upper and lower plates. The lower plate has a central recess in its upper face for supporting the support pad and sensing element, while the upper plate has a corresponding central projection formed on its lower face for bearing on the sensing element and support pad. The upper and lower plates are doweled together for concentric alignment and screwed together. The upper and lower plates are also adapted for mounting between the robot arm wrist and end effector. 3 figs.

Lembke, J.R.

1989-04-18T23:59:59.000Z

414

Piezoelectric film load cell robot collision detector  

DOE Patents [OSTI]

A piezoelectric load cell which can be utilized for detecting collisions and obstruction of a robot arm end effector includes a force sensing element of metallized polyvinylidene fluoride (PVDF) film. The piezoelectric film sensing element and a resilient support pad are clamped in compression between upper and lower plates. The lower plate has a central recess in its upper face for supporting the support pad and sensing element, while the upper plate has a corresponding central projection formed on its lower face for bearing on the sensing element and support pad. The upper and lower plates are dowelled together for concentric alignment and screwed together. The upper and lower plates are also adapted for mounting between the robot arm wrist and end effector. 3 figs.

Lembke, J.R.

1988-03-15T23:59:59.000Z

415

Piezoelectric film load cell robot collision detector  

DOE Patents [OSTI]

A piezoelectric load cell which can be utilized for detecting collisions and obstruction of a robot arm end effector includes a force sensing element of metallized polyvinylidene fluoride (PVDF) film. The piezoelectric film sensing element and a resilient support pad are clamped in compression between upper and lower plates. The lower plate has a central recess in its upper face for supporting the support pad and sensing element, while the upper plate has a corresponding central projection formed on its lower face for bearing on the sensing element and support pad. The upper and lower plates are dowelled together for concentric alignment and screwed together. The upper and lower plates are also adapted for mounting between the robot arm wrist and end effector.

Lembke, John R. (Overland Park, KS)

1989-04-18T23:59:59.000Z

416

Lubrication for high load duplex bearings  

SciTech Connect (OSTI)

Three ES and H-compatible lubricants (Environment, Safety and Health) for high load duplex bearing applications were evaluated and compared against trichlorotrifluoroethane (Freon) deposition of low molecular weight polytetrafluoroethylene (PTFE) bearing lubricant extracted from Vydax{trademark}. Vydax is a product manufactured by DuPont consisting of various molecular weights of PTFE suspended in trichlorotrifluoroethane (Freon) which is an ozone-depleting solvent. Bearings with Supercritical CO{sub 2} deposition of PTFE extracted from Vydax AR/IPA, bearings with titanium carbide coated balls, and bearings with diamond-like carbon races and retainers were evaluated. Bearings with Supercritical CO{sub 2} deposition of PTFE from Vydax AR/IPA performed as well as bearings with Freon deposition of PTFE from Freon-based Vydax.

Steinhoff, R.G.

1997-08-01T23:59:59.000Z

417

514 ASHRAE Transactions: Symposia Design cooling load calculation methods are, by the  

E-Print Network [OSTI]

Handbook--Fundamentals (ASHRAE 1997) and the Cooling and Heating Load Calculation Manual (Mc514 ASHRAE Transactions: Symposia ABSTRACT Design cooling load calculation methods are Load Calculation Methods (942-RP)" are also given. INTRODUCTION Design cooling load calculation

418

FINAL PROJECT REPORT LOAD MODELING TRANSMISSION RESEARCH  

E-Print Network [OSTI]

the set temperature ? Power loss and initial electronicsprotection even at total power loss Table 5 provides thenot activate with total power loss or electronics shutdown ?

Lesieutre, Bernard

2013-01-01T23:59:59.000Z

419

Elevated Temperature Primary Load Design Method Using Pseudo Elastic-Perfectly Plastic Model  

SciTech Connect (OSTI)

A new primary load design method for elevated temperature service has been developed. Codification of the procedure in an ASME Boiler and Pressure Vessel Code, Section III Code Case is being pursued. The proposed primary load design method is intended to provide the same margins on creep rupture, yielding and creep deformation for a component or structure that are implicit in the allowable stress data. It provides a methodology that does not require stress classification and is also applicable to a full range of temperature above and below the creep regime. Use of elastic-perfectly plastic analysis based on allowable stress with corrections for constraint, steady state stress and creep ductility is described. This approach is intended to ensure that traditional primary stresses are the basis for design, taking into account ductility limits to stress re-distribution and multiaxial rupture criteria.

Carter, Peter [Stress Engineering Services Inc.] [Stress Engineering Services Inc.; Sham, Sam [ORNL] [ORNL; Jetter, Robert I [Consultant] [Consultant

2012-01-01T23:59:59.000Z

420

Cementitious Stabilization of Mixed Wastes with High Salt Loadings  

SciTech Connect (OSTI)

Salt loadings approaching 50 wt % were tolerated in cementitious waste forms that still met leach and strength criteria, addressing a Technology Deficiency of low salt loadings previously identified by the Mixed Waste Focus Area. A statistical design quantified the effect of different stabilizing ingredients and salt loading on performance at lower loadings, allowing selection of the more effective ingredients for studying the higher salt loadings. In general, the final waste form needed to consist of 25 wt % of the dry stabilizing ingredients to meet the criteria used and 25 wt % water to form a workable paste, leaving 50 wt % for waste solids. The salt loading depends on the salt content of the waste solids but could be as high as 50 wt % if all the waste solids are salt.

Spence, R.D.; Burgess, M.W.; Fedorov, V.V.; Downing, D.J.

1999-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

Strategy Guideline: Accurate Heating and Cooling Load Calculations  

SciTech Connect (OSTI)

This guide presents the key criteria required to create accurate heating and cooling load calculations and offers examples of the implications when inaccurate adjustments are applied to the HVAC design process. The guide shows, through realistic examples, how various defaults and arbitrary safety factors can lead to significant increases in the load estimate. Emphasis is placed on the risks incurred from inaccurate adjustments or ignoring critical inputs of the load calculation.

Burdick, A.

2011-06-01T23:59:59.000Z

422

Industrial Load Shaping: A Utility Strategy to Deal with Competition  

E-Print Network [OSTI]

INDUSTRIAL LOAD SHAPING: A UTILITY STRATEGY TO DEAL WITH COMPETITION DONALD BULES BULES AND ASSOCIATES SAN FRANCISCO, ABSTRACT In recent years competition from various sources such as cogeneration and bypass has led many utilities... to refocus attention on their large industrial customers. Industrial load shaping is a customized program involving cost-effective process modifications and operational changes which result in a restructuring of the electric load profile of individual...

Bules, D.

423

Solar resource-utility load matching assessment: NREL photovoltaic project summary  

SciTech Connect (OSTI)

Many utility planners may be unfamiliar with the potential for the development of photovoltaics (PV) in their service areas. The goal of the research summarized in this document is to provide information on the match existing between the output of PV powder plants and the load requirements of US utilities. This material indicates whether or not the effective capacity (hence the value) of this renewable resource should be higher than that traditionally assigned to an intermittent resource.

none,

1993-11-01T23:59:59.000Z

424

Method of nuclear reactor control using a variable temperature load dependent set point  

SciTech Connect (OSTI)

A method and apparatus for controlling a nuclear reactor in response to a variable average reactor coolant temperature set point is disclosed. The set point is dependent upon percent of full power load demand. A manually-actuated ''droop mode'' of control is provided whereby the reactor coolant temperature is allowed to drop below the set point temperature a predetermined amount wherein the control is switched from reactor control rods exclusively to feedwater flow.

Kelly, J.J.; Rambo, G.E.

1982-04-27T23:59:59.000Z

425

Demand Side Dispatching, Part 1: A Novel Approach for Industrial Load Shaping Applications  

E-Print Network [OSTI]

) systems fo commercial HVAC applications. Load co trol generally involves scheduling the use of electrotechnologies (e.g. air compression, pumping) during off-peak periods only, an shutting them off during on-peak periods. In order to provide... incentives to the custom r to modulate his demand, most DSM progranis combine the foregoing technologies with l1ime of-Use rate structures, capital cost subsidies (rebates), and technical support services. 317 ESL-IE-93-03-45 Proceedings from...

Kumana, J. D.; Nath, R.

426

Notes 04. Static load performance of plain journal bearings  

E-Print Network [OSTI]

The long and short bearing models. Pressure field and fluid film forces on short length journal bearings. Equilibrium condition, load capacity and the Sommerfeld number....

San Andres, Luis

2010-01-01T23:59:59.000Z

427

activated carbon load: Topics by E-print Network  

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

response of phenolic resin and its carbon-nanotube composites to shock wave loading Materials Science Websites Summary: Dynamic response of phenolic resin and its carbon-nanotube...

428

activated carbon loaded: Topics by E-print Network  

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

response of phenolic resin and its carbon-nanotube composites to shock wave loading Materials Science Websites Summary: Dynamic response of phenolic resin and its carbon-nanotube...

429

Load Expansion of Stoichiometric HCCI Using Spark Assist and...  

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

of Stoichiometric HCCI Using Spark Assist and Hydraulic Valve Actuation Load Expansion of Stoichiometric HCCI Using Spark Assist and Hydraulic Valve Actuation Presentation given at...

430

Averaged equations for Josephson junction series arrays with LRC load  

E-Print Network [OSTI]

We derive the averaged equations describing a series array of Josephson junctions shunted by a parallel inductor-resistor-capacitor load. We assume that the junctions have negligable capacitance ($\\beta = 0$), and derive averaged equations which turn out to be completely tractable: in particular the stability of both in-phase and splay states depends on a single parameter, $\\del$. We find an explicit expression for $\\delta$ in terms of the load parameters and the bias current. We recover (and refine) a common claim found in the technical literature, that the in-phase state is stable for inductive loads and unstable for capacitive loads.

Kurt Wiesenfeld; James W. Swift

1994-08-26T23:59:59.000Z

431

Commercial and Residential Hourly Load Profiles for all TMY3...  

Open Energy Info (EERE)

hourly load profile data for 16 commercial building types (based off the DOE commercial reference building models) and residential buildings (based off the Building America House...

432

alkohilimgi load lhiajalisemaks: Topics by E-print Network  

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

are dynamically adjusted. Taking into account the speed at which loads vary and the latency of the underlying network, we specify conditions under which the algorithm is...

433

alkoholimgi load lhiajalisemaks: Topics by E-print Network  

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

are dynamically adjusted. Taking into account the speed at which loads vary and the latency of the underlying network, we specify conditions under which the algorithm is...

434

HVAC Loads in High-Performance Homes (Presentation)  

SciTech Connect (OSTI)

This presentation was delivered at the ASHRAE 2010 Annual Summer Conference on June 27, 2010, and addresses humidity and AC loads in energy efficient houses.

Christensen, D.; Fang, X.; Winkler, J.

2010-06-27T23:59:59.000Z

435

Retrofitting unreinforced concrete masonry to resist tornado loading  

E-Print Network [OSTI]

Advances in structural design and building materials have significantly increased the performance of many structures under the extreme loading conditions associated with natural disasters such as earthquakes. However, ...

Dorshorst, Evan G. (Evan Gregory)

2013-01-01T23:59:59.000Z

436

A mixed integer programming approach to reduce fuel load ...  

E-Print Network [OSTI]

Feb 12, 2015 ... A mixed integer programming approach to reduce fuel load accumulation for prescribed burn planning. Ramya Rachmawati(ramya.rachmawati ...

Ramya Rachmawati

2015-02-12T23:59:59.000Z

437

Used Nuclear Fuel Loading and Structural Performance Under Normal...  

Energy Savers [EERE]

Used Nuclear Fuel Loading and Structural Performance Under Normal Conditions of Transport - Demonstration of Approach and Results of Used Fuel Performance Characterization Used...

438

Characterization of Dynamic Loads on Solar Modules with Respect...  

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

78 CHARACTERIZATION OF DYNAMIC LOADS ON SOLAR MODULES WITH RESPECT TO FRACTURE OF SOLAR CELLS Sascha Dietrich, Matthias Pander, Martin Sander, Matthias Ebert & Fraunhofer - Center...

439

California Customer Load Reductions during the Electricity Crisis...  

Open Energy Info (EERE)

Reductions during the Electricity Crisis: Did They Help to Keep the Lights On? Jump to: navigation, search Tool Summary LAUNCH TOOL Name: California Customer Load Reductions during...

440

Development of an Accelerated Ash-Loading Protocol for Diesel...  

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

Accelerated Ash-Loading Protocol for Diesel Particulate Filters Bruce G. Bunting and Todd J. Toops Oak Ridge National Laboratory Adam Youngquist and Ke Nguyen University of...

Note: This page contains sample records for the topic "loads providing ancillary" 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

A three phase load flow algorithm for Shipboard Power Systems  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . 3, 5 Network Representation 3. 6 Component Modeling. 3. 7 Integration of Methodology and Component Modeling . . . 3. 8 Chapter Summary. IV Load Flow Algorithm. . 4. 1 Introduction. 4. 2 Load Flow Algorithm. 4. 3 Application of Load Flow... Algorithm. . 4. 4 Summary of Load Flow Algorithm. 4. 5 Chapter Summary. . nl V1 vn 1X 1 3 5 5 8 15 16 16 18 23 26 27 50 53 54 54 54 69 79 79 CHAPTER V RESULTS AND CONCLUSIONS . . 5. 1 Introduction . . 5. 2 IEEE 37 Bus Radial...

Medina-Calder?on, M?onica M

2003-01-01T23:59:59.000Z

442

advanced load alleviation: Topics by E-print Network  

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

paradox of the pulsar wind nebula. Maxim Lyutikov 2002-02-19 89 A Technique to Utilize Smart Meter Load Information for Adapting Overcurrent Protection for Radial Distribution...

443

Load Expansion with Diesel/Gasoline RCCI for Improved Engine...  

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

with DieselGasoline RCCI for Improved Engine Efficiency and Emissions Load Expansion with DieselGasoline RCCI for Improved Engine Efficiency and Emissions This poster will...

444

Repository Reference Disposal Concepts and Thermal Load Management...  

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

Thermal Load Management Analysis A disposal concept consists of three parts: waste inventory (7 waste types examined), geologic setting (e.g., clayshale, salt, crystalline,...

445

Improved Load Plan Design Through Integer Programming Based ...  

E-Print Network [OSTI]

The fundamental building block in load planning is a direct trailer, or a direct. ... of shipment and trailer dispatching; (2) integrated consideration of the movement ...

2011-12-21T23:59:59.000Z

446

air conditioning load: Topics by E-print Network  

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

J.; Deying, L. 2006-01-01 2 Aggregated Modeling and Control of Air Conditioning Loads for Demand Response Computer Technologies and Information Sciences Websites Summary: 1...

447

active load management: Topics by E-print Network  

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

Load Management Programs CATEE Conference October, 2012 Agenda Outline I. General Demand Response Definition II. General Demand Response Program Rules III. CenterPoint...

448

air conditioning loads: Topics by E-print Network  

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

Websites Summary: 1 Aggregated Modeling and Control of Air Conditioning Loads for Demand Response Wei Zhang, Member, IEEE Abstract--Demand response is playing an...

449

Load Expansion of Stoichiometric HCCI Using Spark Assist and Hydraulic Valve Actuation  

SciTech Connect (OSTI)

A spark-assist homogeneous charge compression ignition (SA-HCCI) operating strategy is presented here that allows for stoichiometric combustion from 1000-3000 rpm, and at loads as high as 750 kPa net IMEP. A single cylinder gasoline engine equipped with direct fuel injection and fully variable hydraulic valve actuation (HVA) is used for this experimental study. The HVA system enables negative valve overlap (NVO) valve timing for hot internal EGR. Spark-assist stabilizes combustion over a wide range of engine speeds and loads, and allows for stoichiometric operation at all conditions. Characteristics of both spark-ignited combustion and HCCI are present, with combustion analysis showing a distinctive spark ignited phase of combustion, followed by a much more rapid HCCI combustion phase. At high load, the maximum pressure rise rate is controlled by a combination of spark timing and retarding the intake valve closing angle. The latter reduces the effective compression ratio, and therefore the compressive temperatures, allowing the high load limit of the operating range to be expanded. The SA-HCCI operating strategy exhibits improved thermal efficiency at most operating conditions, with fuel consumption improvements up to 9% realized at light engine loads. The SA-HCCI operating strategy presented here does not provide an efficiency advantage at all operating points compared to SI combustion; a decrease was observed at the highest speed and at loads above 500 kPa net IMEP. At light engine loads the majority of the heat release takes place during the HCCI phase of the heat release, and as such the NOx emissions are very low and are similar to levels observed in pure HCCI. At higher loads, a larger portion of the heat release takes place during the spark ignited phase of combustion, which produces NOx emissions that are much higher than is typically associated with HCCI, but still represent a decrease from conventional SI combustion. By limiting the fuel/air mixture to stoichiometric conditions, the higher NOx emissions do not represent an implementation barrier to this strategy because compatibility is maintained with very effective conventional 3-way catalysts.

Szybist, James P [ORNL; Nafziger, Eric J [ORNL

2010-01-01T23:59:59.000Z

450

High voltage dc--dc converter with dynamic voltage regulation and decoupling during load-generated arcs  

DOE Patents [OSTI]

A high-power power supply produces a controllable, constant high voltage output under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, an output rectifier for producing a dc voltage at the output of each module, and a current sensor for sensing output current. The power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle and circuitry is provided for sensing incipient arc currents at the output of the power supply to simultaneously decouple the power supply circuitry from the arcing load. The power supply includes a plurality of discrete switching type dc--dc converter modules. 5 Figs.

Shimer, D.W.; Lange, A.C.

1995-05-23T23:59:59.000Z

451

High voltage dc-dc converter with dynamic voltage regulation and decoupling during load-generated arcs  

DOE Patents [OSTI]

A high-power power supply produces a controllable, constant high voltage output under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, an output rectifier for producing a dc voltage at the output of each module, and a current sensor for sensing output current. The power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle and circuitry is provided for sensing incipient arc currents at the output of the power supply to simultaneously decouple the power supply circuitry from the arcing load. The power supply includes a plurality of discrete switching type dc--dc converter modules.

Shimer, Daniel W. (Danville, CA); Lange, Arnold C. (Livermore, CA)

1995-01-01T23:59:59.000Z

452

Model Development and Loads Analysis of a Wind Turbine on a Floating Offshore Tension Leg Platform  

SciTech Connect (OSTI)

This report presents results of the analysis of a 5-MW wind turbine located on a floating offshore tension leg platform (TLP) that was conducted using the fully coupled time-domain aero-hydro-servo-elastic design code FAST with AeroDyn and HydroDyn. Models in this code are of greater fidelity than most of the models that have been used to analyze floating turbines in the past--which have neglected important hydrodynamic and mooring system effects. The report provides a description of the development process of a TLP model, which is a modified version of a Massachusetts Institute of Technology design derived from a parametric linear frequency-domain optimization process. An extensive loads and stability analysis for ultimate and fatigue loads according to the procedure of the International Electrotechnical Commission offshore wind turbine design standard was performed with the verified TLP model. Response statistics, extreme event tables, fatigue lifetimes, and selected time histories of design-driving extreme events are analyzed and presented. Loads for the wind turbine on the TLP are compared to those of an equivalent land-based turbine in terms of load ratios. Major instabilities for the TLP are identified and described.

Matha, D.; Fischer, T.; Kuhn, M.; Jonkman, J.

2010-02-01T23:59:59.000Z

453

Report of the US Nuclear Regulatory Commission Piping Review Committee. Volume 4. Evaluation of other loads and load combinations  

SciTech Connect (OSTI)

Six topical areas were covered by the Task Group on Other Dynamic Loads and Load Combinations as described below: Event Combinations - dealing with the potential simultaneous occurrence of earthquakes, pipe ruptures, and water hammer events in the piping design basis; Response Combinations - dealing with multiply supported piping with independent inputs, the sequence of combinations between spacial and modal components of response, and the treatment of high frequency modes in combination with low frequency modal responses; Stress Limits/Dynamic Allowables - dealing with inelastic allowables for piping and strain rate effects; Water Hammer Loadings - dealing with code and design specifications for these loadings and procedures for identifying potential water hammer that could affect safety; Relief Valve Opening and Closing Loads - dealing with the adequacy of analytical tools for predicting the effects of these events and, in addition, with estimating effective cycles for fatigue evaluations; and Piping Vibration Loads - dealing with evaluation procedures for estimating other than seismic vibratory loads, the need to consider reciprocating and rotary equipment vibratory loads, and high frequency vibratory loads. NRC staff recommendations or regulatory changes and additional study appear in this report.

Not Available

1984-12-01T23:59:59.000Z

454

Lithium Loaded Glass Fiber Neutron Detector Tests  

SciTech Connect (OSTI)

Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world and, thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. Reported here are the results of tests of the lithium-loaded glass fibers option. This testing measured the neutron detection efficiency and gamma ray rejection capabilities of a small system manufactured by Nucsafe (Oak Ridge, TN).

Ely, James H.; Erikson, Luke E.; Kouzes, Richard T.; Lintereur, Azaree T.; Stromswold, David C.

2009-11-12T23:59:59.000Z

455

REVIEW OF METHODS TO REDUCE URBAN STORMWATER LOADS  

E-Print Network [OSTI]

, the implementation of Best Management Practices (BMPs) capable of controlling or removing Hg and PCBs from urban for preliminary prioritization of best management practices (BMPs) (Section 5). Section 3: Describes areas and storm water, measurements of loads in stormwater, and demonstration that either loads

456

Incentivizing Advanced Load Scheduling in Smart Homes , and David Irwin  

E-Print Network [OSTI]

Incentivizing Advanced Load Scheduling in Smart Homes Ye Xu , and David Irwin , and Prashant Shenoy Department of Electrical and Computer Engineering School of Computer Science University of Massachusetts Amherst ABSTRACT In recent years, researchers have proposed numerous advanced load scheduling algorithms

Massachusetts at Amherst, University of

457

Fetch Halting on Critical Load Misses Nikil Mehta,  

E-Print Network [OSTI]

Fetch Halting on Critical Load Misses Nikil Mehta, Brian Singer, R. Iris Bahar Division, such as loads that miss to main memory and floating point arithmetic operations, are primarily responsible to characterize critical instructions, our approach com- bines software profiling and hardware monitoring

DeHon, André

458

Power load forecasting Organization: Huizhou Electric Power, P. R. China  

E-Print Network [OSTI]

Power load forecasting Organization: Huizhou Electric Power, P. R. China Presenter: Zhifeng Hao can be divided into load forecasting and electrical consumption predicting according to forecasting in generators macroeconomic control, power exchange plan and so on. And the prediction is from one day to seven

459

Performance Analysis of Photovoltaic Cell with Dynamic PHEV Loads  

E-Print Network [OSTI]

Performance Analysis of Photovoltaic Cell with Dynamic PHEV Loads F. R. Islam, H. R. Pota, M. S. Rahman and M. S. Ali Abstract--This paper presents the dynamics of photovoltaic (PV) cell with Plug for charging PHEVs with PV cell where PHEVs load are modelled based on third order battery model. System

Pota, Himanshu Roy

460

IMPROVEMENTS TO THE RADIANT TIME SERIES METHOD COOLING LOAD CALCULATION  

E-Print Network [OSTI]

IMPROVEMENTS TO THE RADIANT TIME SERIES METHOD COOLING LOAD CALCULATION PROCEDURE By BEREKET, Australia 1998 Submitted to the Faculty of the Graduate College of the Oklahoma State University in partial TO THE RADIANT TIME SERIES METHOD COOLING LOAD CALCULATION PROCEDURE Dissertation Approved: Dr. Jeffrey D

Note: This page contains sample records for the topic "loads providing ancillary" 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

SURF 2005; final report Load Balancing Strategies for  

E-Print Network [OSTI]

SURF 2005; final report Load Balancing Strategies for Parallel SAMR Algorithms A Study of partial differential equations are important in many areas of science and technology. Only adaptive mesh in a load-balanced manner is even more difficult than for unstructured mesh refinement techniques. Therefore

462

VEHICLE TRACKING USING MOBILE WIRELESS SENSOR NETWORKS DURING DYNAMIC LOAD  

E-Print Network [OSTI]

and put into service, engineers lack cost-effective methods for measuring the actual loads imposedVEHICLE TRACKING USING MOBILE WIRELESS SENSOR NETWORKS DURING DYNAMIC LOAD TESTING OF HIGHWAY in the understanding of vehicle-bridge interactions. Direct measurement of the complex coupling that naturally exists

Lynch, Jerome P.

463

Combining daylighting, personal controls, and load shedding offers  

E-Print Network [OSTI]

Combining daylighting, personal controls, and load shedding offers enormous potential for reducing lighting system to respond to available daylight and demand response control · Allows building occupants--Consider the improved cost-effectiveness of wireless dimming to promote daylighting controls and load- shedding

464

Detection of Periodic Beacon Loads in Electrical Distribution Substation Data  

SciTech Connect (OSTI)

This research explores methods for identifying a whether a load is sending a signal to the utility SCADA system. Such a system can identify whether various loads are signialing using existing SCADA infrastructure, that is, without added, high cost communications infrastructure.

Hammerstrom, Donald J.; Guttromson, Ross T.; Lu, Ning; Boyd, Paul A.; Trudnowski, Daniel; Chassin, David P.; Bonebrake, Christopher A.; Shaw, James M.

2006-05-31T23:59:59.000Z

465

Empirical Characterization and Modeling of Electrical Loads in Smart Homes  

E-Print Network [OSTI]

in data analysis: i) generating device-accurate synthetic traces of building electricity usage, and ii) filtering out loads that generate rapid and random power variations in building electricity data. Keywords--ElectricalEmpirical Characterization and Modeling of Electrical Loads in Smart Homes Sean Barker, Sandeep

Shenoy, Prashant

466

A Practical Approach to Dynamic Load Balancing Jerrell Watts  

E-Print Network [OSTI]

Transfer Vector Calculation ¢ ¡ ¢ £ ¤ £ ¢ ¡ ¢ ¢ ¡ ¢ ¡ ¢ ¡ ¢ £ ¤ £ ¢ ¤ £ ¢ 8 2.3.1 Heat DiffusionA Practical Approach to Dynamic Load Balancing Jerrell Watts Scalable Concurrent Programming versions of the node adaption and movement routines which were used by the load balancing code; he also

467

Temperature Aware Microprocessor Floorplanning Considering Application Dependent Power Load  

E-Print Network [OSTI]

heat diffusion model taking into account the ap- plication dependent power load for thermal analysis is calculated to evaluate each new floorplan, which is time-consuming. [7] proposed a simple deterministic heatTemperature Aware Microprocessor Floorplanning Considering Application Dependent Power Load Chun

He, Lei

468

Infrared Temperature Sensing of Mechanically Loaded Specimens: Thermal Analysis  

E-Print Network [OSTI]

, not the instantaneous effect of heating within a single loading cycle. KEY WORDS--Infrared, temperature measurement, meInfrared Temperature Sensing of Mechanically Loaded Specimens: Thermal Analysis by Y. Rabin and D. Rittel ABSTRACT--Infrared temperature-sensing techniques have the major advantages of virtually

Rabin, Yoed

469

actinides loading optimization: Topics by E-print Network  

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

actinides loading optimization First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Building load control...

470

Ris-R-1111(EN) Ultimate Loading of Wind Turbines  

E-Print Network [OSTI]

Risø-R-1111(EN) Ultimate Loading of Wind Turbines Gunner Chr. Larsen, Knut Ronold, Hans E analysis as well as a wind turbine reliability study. In the wind climate analysis, the distribution to analyse wind turbine components with respect to failure in ultimate loading, and in addition to establish

471

Cone Penetrometer Load Cell Temperature and Radiation Testing Results  

SciTech Connect (OSTI)

This report summarizes testing activities performed at the Pacific Northwest National Laboratory to verify the cone penetrometer load cell can withstand the tank conditions present in 241-AN-101 and 241-AN-106. The tests demonstrated the load cell device will operate under the elevated temperature and radiation levels expected to be encountered during tank farm deployment of the device.

Follett, Jordan R.

2013-08-28T23:59:59.000Z

472

Load Alleviation through Adaptive Trailing Edge Control Surfaces: ADAPWING Overview  

E-Print Network [OSTI]

to investigate the potential of using adaptive trailing edge geometry on wind turbine blades as load alleviation field experienced by wind turbine blades is turbulent which causes fluctuating loads during nor- mal for the wind turbine industry if the alleviation systems do not add considerable extra cost. Recent work has

473

Mentoring Ini+a+ve Provides Collegial Support The ADVANCE Faculty Mentoring Program provides professional  

E-Print Network [OSTI]

Mentoring Ini+a+ve Provides Collegial Support The ADVANCE Faculty Mentoring towards promo+on and tenure. The ini+a+ve offers one-to-one and group support for new faculty. ADVANCE has also ini+ated a pilot effort that matches mid

Xie,Jiang (Linda)

474

Hydride generation from the Exide load-leveling cells  

SciTech Connect (OSTI)

Stibine and arsine evolution from lead-acid cells in a 36-kWh Exide load-leveling module was measured as this module approached 1900 cycles of operation. A gas-collection apparatus enabled us to determine the maximum and average rates for evolution of both toxic hydrides. Hydride generation began once the cell voltage exceeded 2.4 V. The maximum rate for arsine occurred just above 2.5 V and consistently preceded the peak rate for stibine for each sampled cell. The average rates of hydride generation were found to be 175 ..mu..g/min for stibine and 12.6 ..mu..g/min for arsine. The former rate proved to be the critical value in determining safe ventilation requirements for cell off-gases. The minimum airflow requirement was calculated to be 340 L/min per cell. Projections for a hypothetical 1-MWh Exide battery without an abatement system indicated that the normal ventilation capacity in the Battery Energy Storage Test facility provides nearly five times the airflow needed for safe hydride removal.

Marr, J.J.; Smaga, J.A.

1987-05-01T23:59:59.000Z

475

Load Component Database of Household Appliances and Small Office Equipment  

SciTech Connect (OSTI)

This paper discusses the development of a load component database for household appliances and office equipment. To develop more accurate load models at both transmission and distribution level, a better understanding on the individual behaviors of home appliances and office equipment under power system voltage and frequency variations becomes more and more critical. Bonneville Power Administration (BPA) has begun a series of voltage and frequency tests against home appliances and office equipments since 2005. Since 2006, Researchers at Pacific Northwest National Laboratory has collaborated with BPA personnel and developed a load component database based on these appliance testing results to facilitate the load model validation work for the Western Electricity Coordinating Council (WECC). In this paper, the testing procedure and testing results are first presented. The load model parameters are then derived and grouped. Recommendations are given for aggregating the individual appliance models to feeder level, the models of which are used for distribution and transmission level studies.

Lu, Ning; Xie, YuLong; Huang, Zhenyu; Puyleart, Francis; Yang, Steve

2008-07-24T23:59:59.000Z

476

Behavior of plate trunnions subjected to shear loads  

SciTech Connect (OSTI)

The use of fabricated trunnions in heavy lift installation of offshore and marine structures is becoming widespread. This paper presents the results of a parametric study, with systematic variation of relevant geometric parameters, on the elasto-plastic responses of plate trunnions subjected to shear loads from the sling eyes. Two distinctive failure modes, associated with main plate dominated and shear plate/trunnion pipe dominated responses are identified and the corresponding results summarized. A proportional limit load, P{sub yl}, is defined for each specimen based on its load-displacement response. It is observed that a plate trunnion possesses significant reserve strength beyond its limit load and that current industry practice, which considers the shear plate only to transfer the total sling load into the main plate, is overly conservative.

Choo, Y.S.; Padmanaban, K.; Shanmugam, N.E.; Liew, J.Y.R. [National Univ. of Singapore (Singapore). Faculty of Engineering

1995-12-31T23:59:59.000Z

477

Static Heat Loads in the LHC Arc Cryostats: Final Assessment  

E-Print Network [OSTI]

This note presents the final assessment of the static heat loads in the LHC arc cryostats, using different experimental methods during the first commissioning period in 2007. This assessment further develops and completes previous estimates made during the commissioning of sector 7_8 [1]. The estimate of the helium inventory, a prerequisite for the heat load calculation, is also presented. Heat loads to the cold mass are evaluated from the internal energy balance during natural as well as powered warm-ups of the helium baths in different subsector. The helium inventory is calculated from the internal energy balance during powered warm-ups and matched with previous assessments. Furthermore, heat loads to the thermal shield are estimated from the non-isothermal cooling of the supercritical helium in line E. The comparison of measured heat loads with previous estimates and with budgeted values is then presented, while their correlation with some important parameters like insulation vacuum pressure and some heat ...

Parma, V

2010-01-01T23:59:59.000Z

478

Impact load mitigation in sandwich beams using local resonators  

E-Print Network [OSTI]

Dynamic response of sandwich beams with resonators embedded in the cores subjected to impact loads is studied. Using finite element models the effectiveness of various local resonator frequencies under a given impact load is compared to the behavior of an equivalent mass beam. It is shown that addition of appropriately chosen local resonators into the sandwich beam is an effective method of improving its flexural bending behavior under impact loads. The effect of a given local resonance frequency under different impact load durations is also studied. It is demonstrated that the choice of appropriate local resonance frequency depends on the impact duration. Further, by performing transverse impact experiments, the finite element models are verified and the advantage of using internal resonators under impact loading conditions is demonstrated.

Sharma, B

2015-01-01T23:59:59.000Z

479

Integrating Demand into the U.S. Electric Power System: Technical, Economic, and Regulatory Frameworks for Responsive Load  

E-Print Network [OSTI]

for Responsive/Adaptive Load by Jason W. Black Massachusetts Institute of Technology Submitted to the Engineering integration of demand response. Integrating demand into the US electricity system will allow the development, and market issues to determine a system structure that provides incentives for demand response. An integrated

de Weck, Olivier L.

480

In-Depth Look at Ground Source Heat Pumps and Other Electric Loads in Two GreenMax Homes  

SciTech Connect (OSTI)

CARB partnered with WPPI Energy to answer key research questions on in-field performance of ground-source heat pumps and LAMELs through extensive field monitoring at two WPPI GreenMax demonstration homes in Wisconsin. These two test home evaluations provided valuable data on the true in-field performance of various building mechanical systems and lighting, appliances, and miscellaneous loads (LAMELs).

Puttagunta, S.; Shapiro, C.

2012-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "loads providing ancillary" 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

Real-Time Forcast Model Analysis of Daily Average Building Load for a Thermal Storage System Control  

E-Print Network [OSTI]

of a building and three real-time building load forecasting models were developed. They are first-order autogressive model, random walk model and linear regression model. Finally, the comparison of results show the random walk model provides the best...

Song, L.; Joo, I. S.; Guwana, S.

482

A Note on On-line Load Balancing for Related Machines  

E-Print Network [OSTI]

and the load of entire schedule s as follows: load(s;i) = 1 vi X s(j)=i pj; Load(s) = maxi load(s;i) It is easy by the machines with speed larger than v if the load cannot exceed .) The following observation is immediateA Note on On-line Load Balancing for Related Machines Piotr Berman Marek Karpinski y Abstract We

Eckmiller, Rolf

483

Analysis of Wind Power and Load Data at Multiple Time Scales  

SciTech Connect (OSTI)

In this study we develop and apply new methods of data analysis for high resolution wind power and system load time series, to improve our understanding of how to characterize highly variable wind power output and the correlations between wind power and load. These methods are applied to wind and load data from the ERCOT region, and wind power output from the PJM and NYISO areas. We use a wavelet transform to apply mathematically well-defined operations of smoothing and differencing to the time series data. This approach produces a set of time series of the changes in wind power and load (or ?deltas?), over a range of times scales from a few seconds to approximately one hour. A number of statistical measures of these time series are calculated. We present sample distributions, and devise a method for fitting the empirical distribution shape in the tails. We also evaluate the degree of serial correlation, and linear correlation between wind and load. Our examination of the data shows clearly that the deltas do not follow a Gaussian shape; the distribution is exponential near the center and appears to follow a power law for larger fluctuations. Gaussian distributions are frequently used in modeling studies. These are likely to over-estimate the probability of small to moderate deviations. This in turn may lead to an over-estimation of the additional reserve requirement (hence the cost) for high penetration of wind. The Gaussian assumption provides no meaningful information about the real likelihood of large fluctuations. The possibility of a power law distribution is interesting because it suggests that the distribution shape for of wind power fluctuations may become independent of system size for large enough systems.

Coughlin, Katie; Eto, J.H.

2010-12-20T23:59:59.000Z

484

Damage predictions of aluminum thin-walled structures subjected to explosive loads.  

SciTech Connect (OSTI)

Predicting failure of thin-walled structures from explosive loading is a very complex task. The problem can be divided into two parts; the detonation of the explosive to produce the loading on the structure, and secondly the structural response. First, the factors that affect the explosive loading include: size, shape, stand-off, confinement, and chemistry of the explosive. The goal of the first part of the analysis is predicting the pressure on the structure based on these factors. The hydrodynamic code CTH is used to conduct these calculations. Secondly, the response of a structure from the explosive loading is predicted using a detailed finite element model within the explicit analysis code Presto. Material response, to failure, must be established in the analysis to model the failure of this class of structures; validation of this behavior is also required to allow these analyses to be predictive for their intended use. The presentation will detail the validation tests used to support this program. Validation tests using explosively loaded aluminum thin flat plates were used to study all the aspects mentioned above. Experimental measurements of the pressures generated by the explosive and the resulting plate deformations provided data for comparison against analytical predictions. These included pressure-time histories and digital image correlation of the full field plate deflections. The issues studied in the structural analysis were mesh sensitivity, strain based failure metrics, and the coupling methodologies between the blast and structural models. These models have been successfully validated using these tests, thereby increasing confidence of the results obtained in the prediction of failure thresholds of complex structures, including aircraft.

Saul, W. Venner; Reu, Phillip L.; Gruda, Jeffrey Donald; Haulenbeek, Kimberly K.; Larsen, Marvin Elwood; Phelan, James M.; Stofleth, Jerome H.; Corona, Edmundo; Gwinn, Kenneth West

2010-11-01T23:59:59.000Z

485

End-Use Load and Consumer Assessment Program: Analysis of residential refrigerator/freezer performance  

SciTech Connect (OSTI)

The Bonneville Power Administration (Bonneville) is conducting a large end-use data acquisition program in an effort to understand how energy is utilized in buildings with permanent electric space heating equipment in the Pacific Northwest. The initial portion of effort, known as the End-Use Load and Consumer Assessment Program (ELCAP), was conducted for Bonneville by the Pacific Northwest Laboratory (PNL). The collection of detailed end-use data provided an opportunity to analyze the amount of energy consumed by both refrigerators and separate freezers units located in residential buildings. By obtaining this information, the uncertainty of long- term regional end-use forecasting can be improved and potential utility marketing programs for new appliances with a reduced overall energy demand can be identified. It was found that standby loads derived from hourly averages between 4 a.m. and 5 a.m. reflected the minimum consumption needed to maintain interior refrigerator temperatures at a steady-state condition. Next, an average 24-hour consumption that included cooling loads from door openings and cooling food items was also determined. Later, analyses were conducted to develop a model capable of predicting refrigerator standby loads and 24-hour consumption for comparison with national refrigerator label ratings. Data for 140 residential sites with a refrigeration end-use were screened to develop a sample of 119 residences with pure refrigeration for use in this analysis. To identify those refrigerators that were considered to be pure (having no other devices present on the circuit) in terms of their end-use classification, the screening procedure used a statistical clustering technique that was based on standby loads with 24-hour consumption. 5 refs., 18 figs., 4 tabs.

Ross, B.A.

1991-09-01T23:59:59.000Z

486

Short-Term Load Forecasting This paper discusses the state of the art in short-term load fore-  

E-Print Network [OSTI]

spectrum of time intervals. In therange of seconds, when load variationsare small and random, the automatic by a number of generation control functions such as hydro scheduling, unit commitment, hydro-ther- mal present, functions such as fuel, hydro, and maintenance scheduling are performed to ensure that the load

Gross, George

487

Aging of Iodine-Loaded Silver Mordenite in NO2  

SciTech Connect (OSTI)

Used nuclear fuel facilities need to control and minimize radioactive emissions. Off-gas systems are designed to remove radioactive contaminants, such as 85Kr, 14C, 3H, and 129I. In an off-gas system, any capture material will be exposed to a gas stream for months at a time. This gas stream may be at elevated temperature and could contain water, NOx gas, or a variety of other constituents comprising the dissolver off-gas stream in a nuclear fuel reprocessing plant. For this reason, it is important to evaluate the effects of long-term exposure, or aging, on proposed capture materials. One material under consideration is reduced silver mordenite (Ag0Z), which is recognized for its efficient iodine capture properties. Iodine is immobilized on Ag0Z as AgI, a solid with low volatility (m.p. ? 500°C). The aim of this study was to determine whether extended aging at elevated temperature in a nominally 2% NO2 environment would result in a loss of immobilized iodine from this material due to either physical or chemical changes that might occur during aging. Charges of iodine-loaded reduced silver mordenite (I2-Ag0Z) were exposed to a 2% NO2 environment for 1, 2, 3, and 4 months at 150°C, then analyzed for iodine losses The aging study was completed successfully. The material did not visibly change color or form. The results demonstrate that no significant iodine loss was observed over the course of 4 months of 2% NO2 aging of I2-Ag0Z at elevated temperature within the margin of error and the variability (~10%) in the loading along the beds. This provides assurance that iodine will remain immobilized on Ag0Z during extended online use in an off-gas capture treatment system. Future tests should expose I2-Ag0Z to progressively more complex feed gases in an effort to accurately replicate the conditions expected in a reprocessing facility.

Bruffey, Stephanie H. [ORNL; Jubin, Robert Thomas [ORNL; Patton, Kaara K. [ORNL; Walker Jr, Joseph Franklin [ORNL

2014-04-01T23:59:59.000Z

488

A model for structural response to hydrogen combustion loads in severe accidents  

SciTech Connect (OSTI)

The response of structures to different pressure histories from hydrogen combustion is analyzed using the model of a linear undamped oscillator. The effective static pressures from a slow deflagration-to-detonation transition (DDT) and a stable detonation are calculated as functions of oscillator frequency. The response of components with a low natural frequency, such as the outermost shell in a large dry containment, is governed by the long-term pressure after combustion. Detonation peak pressure and impulse are not important. For structures with low frequencies, fast flames have a damage potential very similar to detonations. For the investigated pressure loads, the normally reflected detonation provides the bounding effective static pressure for oscillators up to 500 Hz. Fully confined DDT events can exceed the detonation load near the transition location for structural frequencies about {approximately}40 Hz.

Breitung, W.; Redlinger, R. [Forschungszentrum Karlsruhe (Germany). Institut fuer Neutronenphysik und Reaktortechnik

1995-09-01T23:59:59.000Z

489

Seismic Loading for FAST: May 2011 - August 2011  

SciTech Connect (OSTI)

As more wind farms are constructed in seismically active regions, earthquake loading increases in prominence for design and analysis of wind turbines. Early investigation of seismic load tended to simplify the rotor and nacelle as a lumped mass on top of the turbine tower. This simplification allowed the use of techniques developed for conventional civil structures, such as buildings, to be easily applied to wind turbines. However, interest is shifting to more detailed models that consider loads for turbine components other than the tower. These improved models offer three key capabilities in consideration of base shaking for turbines: 1) The inclusion of aerodynamics and turbine control; 2) The ability to consider component loads other than just tower loads; and 3) An improved representation of turbine response in higher modes by reducing modeling simplifications. Both experimental and numerical investigations have shown that, especially for large modern turbines, it is important to consider interaction between earthquake input, aerodynamics, and operational loads. These investigations further show that consideration of higher mode activity may be necessary in the analysis of the seismic response of turbines. Since the FAST code is already capable of considering these factors, modifications were developed that allow simulation of base shaking. This approach allows consideration of this additional load source within a framework, the FAST code that is already familiar to many researchers and practitioners.

Asareh, M. A.; Prowell, I.

2012-08-01T23:59:59.000Z

490

A knowledge-based system for control of xenon-induced spatial power oscillations during load-follow operations  

SciTech Connect (OSTI)

As is well known, large pressurized water reactors (PWRs) are subject to xenon-induced axial power oscillations at some time during a given cycle. Attention to this behavior is required during load-follow operations. A knowledge-based system for controlling xenon-induced spatial power oscillations is described. Experience with a limited set of load-follow patterns has demonstrated that the system is capable of providing advice on appropriate control actions. A simulation model, coupled with a rule-learning process, has been found to be a useful way for determining appropriate weights for the rules that relate power patterns and control actions.

Chung, Sun-Kyo; Danofsky, R.A.; Spinrad, B.I.

1988-01-01T23:59:59.000Z

491

Molecular mechanisms of hydrogen loaded B-hydroquinone clathrate  

SciTech Connect (OSTI)

Molecular dynamics simulations are used to investigate the molecular interactions of hydrogen loaded beta-hydroquinone clathrate. It is found that at lower temperatures, higher loadings are more stable, whereas, at higher temperatures, lower loadings are more stable. This trend can be understood based on the interactions in the system. For loadings greater than one, the repulsive forces between the guest molecules shove each other towards the attractive forces between the guest and host molecules leading to a stabilized minimum energy configuration at low temperatures. At higher temperatures greater displacements take the system away from the shallow energy minimum and the trend reverses. The asymmetries of the clathrate cage structure are due to the presence of the attractive forces at loadings greater than one that lead to confined states. The nature of the cavity structure is nearly spherical for a loading of one, leads to preferential occupation near the hydroxyl ring crowns of the cavity with a loading of two, and at higher loadings, leads to occupation of the interstitial sites (the hydroxyl rings) between cages by a single H2 molecule with the remaining molecules occupying the equatorial plane of the cavity. At higher temperatures, the cavity is more uniformly occupied for all loadings, where the occupation of the interstitial positions of the cavities leads to facile diffusion. ACKNOWLEDGEMENT This work was partially supported by NIDO (Japan), LDRD (PNNL), EERE U.S. Department of Energy, and by OBES, U.S. DOE. The Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy

Daschbach, John L.; Chang, Tsun-Mei; Corrales, Louis R.; Dang, Liem X.; McGrail, B. Peter

2006-09-07T23:59:59.000Z

492

,"Full Service Providers",,,,,"Other Providers",,  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National and Regional Data; Row: NAICS Codes; Column: Energy SourcesWyoming"CoalbedOhio" ,"Full Service Providers",,,,,"Other

493

Center for Ecological Management of Military Lands 1 Loading Data from Mixed Data  

E-Print Network [OSTI]

, for example, plot 1 will have an additional file marked as 301. Follow the procedures below to load the data/PRGMS/HHFILES directory. Load these files first following the procedures for loading handheld files. 5) After the files of the handheld files to this directory. Load these files following the procedures for loading handheld files. #12

494

The Load Distribution Problem in a Ring of Processors Francis C.M. Lau \\Lambda  

E-Print Network [OSTI]

into the following phases: load measurement, calculation of load average, generation of load distribution scheduleThe Load Distribution Problem in a Ring of Processors Francis C.M. Lau \\Lambda Department of Computer Science The University of Hong Kong March 1998 Abstract Given a global picture of the system load

Lau, Francis C.M.

495

Load capacity and rupture displacement in viscoelastic fiber bundles Theocharis Baxevanis1,  

E-Print Network [OSTI]

for this critical load is given. For stress levels below the critical value, the system suffers only partial failureLoad capacity and rupture displacement in viscoelastic fiber bundles Theocharis Baxevanis1 loading, assuming global load sharing GLS for the redistribution of load following fiber failure. We

Katsaounis, Theodoros D.

496

Numerical simulation of ice-induced loads on ships and comparison with field measurements  

E-Print Network [OSTI]

Numerical simulation of ice-induced loads on ships and comparison with field measurements Biao Su Department of Marine Technology, NTNU May 28, 2013 #12;Motivation Local ice load Global ice load Ship's performance · Ice-hull interaction · Local ice load · Global ice load · Ship's performance #12;Outline

Nřrvĺg, Kjetil

497

DSM Load Growth Through Electrotechnology Application Assistance  

E-Print Network [OSTI]

replacing outmoded energy intensive end uses in the marketplace. "In nearly every case, the electrotechnology applications save energy, largely eliminate point-of-use pollution, reduce overall carbon dioxide emissions, and--in many cases 73 ESL-IE-94... to its roots," electrotechnology applications assistance programs are beginning to provide measured results that are a key part of utility efforts to manage demand. Several innovative electrotechnology application programs exist but most share a...

Merchant, D. G.

498

Funnel for fuel pin loading system  

DOE Patents [OSTI]

An enlarged funnel is releasably mounted at the open end of a length of cladding by an encircling length of shrink tubing which securely engages outer surfaces of both the funnel and cladding. The shrink tubing overlaps an annular shoulder against which pulling force can be exerted to remove the tubing from the cladding. The shoulder can be provided on a separate collar or ring, or on the funnel itself.

Christiansen, David W. (Kennewick, WA); Steffen, Jim M. (Richland, WA); Brown, William F. (West Richland, WA)

1985-01-01T23:59:59.000Z

499

Solar resource: Utility load-matching assessment. Interim subcontract report, 20 September 1991--19 December 1993  

SciTech Connect (OSTI)

This report describes work performed to estimate the load-matching capability of photovoltaics (PV) for a selected group of utilities in the continental United States. The report provides an initial quantitative estimate of this capability for 20 utilities. This characteristic is important because it may indicate that the effective capacity, hence the value, of PV is higher than is traditionally assigned to such non-controllable, non-dispatchable resources. Load-matching capability is determined experimentally by analyzing the interaction between the load requirements of each utility and the output of locally sited PV systems. This type of investigation requires site- and time-specific insolation data that are not commonly available. Here, the needed data were inferred from geostationary satellite remote sensing of the Earth`s cloud cover. A secondary objective of this study was to evaluate the suitability of this approach. The results of this investigation are presented in this report.

Perez, R.; Seals, R.; Stewart, R. [State Univ. of New York, Albany, NY (United States). Atmospheric Sciences Research Center

1994-03-01T23:59:59.000Z

500

Fracture assessment of HSST Plate 14 shallow-flaw cruciform bend specimens tested under biaxial loading conditions  

SciTech Connect (OSTI)

A technology to determine shallow-flaw fracture toughness of reactor pressure vessel (RPV) steels is being developed for application to the safety assessment of RPVs containing postulated shallow surface flaws. Matrices of cruciform beam tests were developed to investigate and quantify the effects of temperature, biaxial loading, and specimen size on fracture initiation toughness of two-dimensional (constant depth), shallow, surface flaws. The cruciform beam specimens were developed at Oak Ridge National Laboratory (ORNL) to introduce a far-field, out-of-plane biaxial stress component in the test section that approximates the nonlinear stresses resulting from pressurized-thermal-shock or pressure-temperature loading of an RPV. Tests were conducted under biaxial load ratios ranging from uniaxial to equibiaxial. These tests demonstrated that biaxial loading can have a pronounced effect on shallow-flaw fracture toughness in the lower transition temperature region for an RPV material. The cruciform fracture toughness data were used to evaluate fracture methodologies for predicting the observed effects of biaxial loading on shallow-flaw fracture toughness. Initial emphasis was placed on assessment of stress-based methodologies, namely, the J-Q formulation, the Dodds-Anderson toughness scaling model, and the Weibull approach. Applications of these methodologies based on the hydrostatic stress fracture criterion indicated an effect of loading-biaxiality on fracture toughness; the conventional maximum principal stress criterion indicated no effect. A three-parameter Weibull model based on the hydrostatic stress criterion is shown to correlate the experimentally observed biaxial effect on cleavage fracture toughness by providing a scaling mechanism between uniaxial and biaxial loading states.

Bass, B.R.; McAfee, W.J.; Williams, P.T.; Pennell, W.E.

1998-06-01T23:59:59.000Z