National Library of Energy BETA

Sample records for mapp miso mro

  1. QER- Comment of MISO

    Broader source: Energy.gov [DOE]

    The Midcontinent Independent System Operator, Inc. (MISO), respectfully submits two studies to the Department of Energy (DOE) for consideration in preparing its Quadrennial Energy Review (QER) on transmission, storage and distribution infrastructure. MISO also presented to DOE on the QER at the Newark, NJ public session held on September 8, 2014. MISO appreciates that opportunity. In addition to the material presented in Newark, MISO recently completed two studies on transmission and energy storage in the MISO footprint, which covers all or parts of 15 states in the middle of the Unites States.

  2. Optimal Distributed Beamforming for MISO Interference Channels 

    E-Print Network [OSTI]

    Qiu, Jiaming

    2012-07-16

    In this thesis, the problem of quantifying the Pareto optimal boundary of the achievable rate region is considered over multiple-input single-output(MISO)interference channels, where the problem boils down to solving a sequence of convex feasibility...

  3. Energy Efficiency Analysis of MISO-OFDM Communication Systems Considering Power and Capacity Constraints

    E-Print Network [OSTI]

    Wang, Cheng-Xiang

    Energy Efficiency Analysis of MISO-OFDM Communication Systems Considering Power and Capacity subchannel capacity threshold. Moreover, the energy efficiency of MISO-OFDM communication systems starts-input single-output (MISO) . orthogonal frequency division multiplexing (OFDM) . energy efficiency. capacity

  4. Software agents : an application to the airline MRO industry

    E-Print Network [OSTI]

    Poon, Arthur Wai Keong, 1979-

    2004-01-01

    Poor management of aircraft spare parts, human-related maintenance errors and the lack of coordinated decision-making in maintenance scheduling are some of the problems plaguing the airline MRO industry. Airlines, independent ...

  5. Modeling, Analysis, Predictions, and Projections Email: oar.cpo.mapp@noaa.gov

    E-Print Network [OSTI]

    Earth system models to better simulate the climate system? Can we improve intraseasonal to seasonal mission, MAPP supports the development of advanced Earth system models that can predict climate variations, and the external research community. MAPP Objectives · Improve Earth system models · Achieve an integrated Earth

  6. Property:EIA/861/IsoMiso | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation, search Property NameDefinitionActivityTransmissionIsoCaIsoMiso

  7. MAPP 7.10 -Procedures for Standardized Training in Animal Care & Use I Training Program

    E-Print Network [OSTI]

    Sinnamon, Gordon J.

    MAPP 7.10 - Procedures for Standardized Training in Animal Care & Use I Training Program 1. On behalf of the AUS, the ACVS Research Education Team will: 1.1 Develop appropriate training programs with reference to CCAC requirements; 1.2 Assess the training requirements of all personnel at the University

  8. Joint Power Control and Beamforming Codebook Design for MISO Channels under the Outage

    E-Print Network [OSTI]

    Yu, Wei

    Joint Power Control and Beamforming Codebook Design for MISO Channels under the Outage Criterion is formulated as the minimization of the outage probability subject to the transmit power constraint beamforming and power codebook sizes. We show that as the outage probability decreases, optimal joint design

  9. Time Reversal with MISO for Ultra-Wideband Communications: Experimental Results (invited paper)

    E-Print Network [OSTI]

    Qiu, Robert Caiming

    TH2B-1 Time Reversal with MISO for Ultra-Wideband Communications: Experimental Results (invited reversal (TR) communications marks a paradigm shift in UWB communications. The system complexity can provides unique solutions to applications, including logistics, security applications, medical applications

  10. An In-situ materials analysis particle probe (MAPP) diagnostic to study particle density control and hydrogenic fuel retention in NSTX

    SciTech Connect (OSTI)

    Allain, Jean-Paul

    2014-09-05

    A new materials analysis particle probe (MAPP) was designed, constructed and tested to develop understanding of particle control and hydrogenic fuel retention in lithium-based plasma-facing surfaces in NSTX. The novel feature of MAPP is an in-situ tool to probe the divertor NSTX floor during LLD and lithium-coating shots with subsequent transport to a post-exposure in-vacuo surface analysis chamber to measure D retention. In addition, the implications of a lithiated graphite-dominated plasma-surface environment in NSTX on LLD performance, operation and ultimately hydrogenic pumping and particle control capability are investigated in this proposal. MAPP will be an invaluable tool for erosion/redeposition simulation code validation.

  11. MISO_Renewable_template

    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 RankADVANCED MANUFACTURING OFFICE INDUSTRIALU.S.LeadershipLumileds R&DTO:EXMEMORANDUM To:MINING8,2011

  12. [MRO] Oligocrystalline Shape Memory Alloys

    E-Print Network [OSTI]

    Chen, Ying

    Copper-based shape memory alloys (SMAs) exhibit excellent shape memory properties in single crystalline form. However, when they are polycrystalline, their shape memory properties are severely compromised by brittle fracture ...

  13. MISO Broadcasting FBMC System for Highly Frequency Selective Channels

    E-Print Network [OSTI]

    Swindlehurst, A. Lee

    Department for Electrical Engineering & Computer Science Technische Universit¨at M¨unchen University of California, Irvine 80290 M¨unchen, Germany Irvine, CA 92697, USA {michael.newinger, leo.baltar, josef in OFDM. A cyclic prefix is no longer required. The increase of efficiency, however, comes with the price

  14. EA-343 Midwest Independent Transmission Operator (MISO) | Department of

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

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPL EnergyPlus, LLC to export electricSilverhillSaracen EnergyRoyal Bank

  15. Property:EIA/861/NercMro | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo,AltFuelVehicle2 Jump to: navigation, search This is a property of type

  16. Manual of Administrative Policies and Procedures MAPP 2.10 Student Scholarships, Awards and Prizes

    E-Print Network [OSTI]

    Lennard, William N.

    Policy Category: Financial Subject: Student Scholarships, Awards and Prizes Approving Authority: Senate, 2011 _____________________________________ I. PURPOSE The purpose of this policy is to define and accountabilities associated with revising the terms of existing scholarships, awards, bursaries and prizes II

  17. The generation fleet in MISO is being affected by time, fuel...

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

    Power Plan 111(b) & (d) Nature of Regulation Mercury and Air Toxics Standards Cross State Air Pollution Rule and Cooling Water Regulations (316(b)) New air quality standards Coal...

  18. Microsoft PowerPoint - MISO-SPP Market Impacts HydPwrConf 2014

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on darkMicroorganismsnow widely usingOverview ofWeSchool MACRUC 15

  19. PRESS HARD YOU ARE MAKING MULTIPLE COPIES B. MRO Name, Address, Phone No. and Fax No.

    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 DeliciousMathematicsEnergyInterested PartiesBuilding energy codes have a moreINCREASES5-24690-1EA-2000NORTHERNPRESS

  20. MISO Market Performance: An AgentMISO Market Performance: An Agent--Based Computational TestBased Computational Test--BedBed HongyanHongyan LiLiaa, andand LeighLeigh TesfatsionTesfatsionbb

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    , FERC proposed a new market design for U.S. wholesale power markets. About 50% of U.S. electric power generating capacity now operates under a variant of the FERC market design. These restructured wholesale of Electricity Systems. AMES incorporates, in simplified form, core features of the wholesale power market design

  1. NET DEGREES OF FREEDOM OF RECENT SCHEMES FOR THE MISO BC WITH DELAYED CSIT AND FINITE COHERENCE TIME

    E-Print Network [OSTI]

    Gesbert, David

    DoF that this scheme can be expected to yield in a realistic system by taking into account the cost Ericsson, Symantec, SAP, Monaco Telecom. Part of this work has been performed in the framework of the FP7 project ICT-317669 METIS, which is partly funded by the European Union. The authors would like

  2. NetDoFs of the MISO Broadcast Channel with Delayed CSIT Feedback for Finite Rate of

    E-Print Network [OSTI]

    Gesbert, David

    the main limiting factor in multi- user wireless communication systems. Tx side or Rx side zero-forcing (ZF by its industrial members: ORANGE, BMW Group, Swisscom, SFR, ST Microelectronics, Symantec, SAP, Monaco by the EU FP7 project METIS. delay is less than the channel coherence time. It was generally believed

  3. The generation fleet in MISO is being affected by time, fuel prices and multiple phases of environmental regulations

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

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE- Non-ResidentialAlliantPGE andOfficeMattRand, Residential Solutions,8, 2014 1

  4. Conferenza Nazionale ASITA, L'Aquila, 21 24 ottobre 2008 Stima di movimenti superficiali del terreno e di mappe digitali di

    E-Print Network [OSTI]

    Perissin, Daniele

    riportano i risultati relativi al terremoto del 12 maggio 2008 nella provincia del Sichuan, ricavati dall

  5. EIS-0465: Pepco Holdings, Inc. Mid-Atlantic Power Path (MAPP) Project, Prince George's, Calvert, and Wicomico Counties, Maryland, and Sussex County, Delaware

    Broader source: Energy.gov [DOE]

    Pepco Holdings, Inc., cancelled its proposed Phase II of the Mid-Atlantic Power Pathway transmission line project and DOE cancelled preparation of an EIS on the potential environmental impacts of a proposed federal loan guarantee for the project.

  6. Awarded Products Maintenance, Repair & Operations TOOLS & HARDWARE

    E-Print Network [OSTI]

    California at San Diego, University of

    Awarded Products Maintenance, Repair & Operations (MRO): TOOLS & HARDWARE Such as hand and power tools, cutting tools, fasteners, etc. Maintenance, Repair & Operations (MRO): TOOLS & HARDWARE Such as hand and power tools, cutting tools, fasteners, etc. Maintenance, Repair & Operations (MRO): TOOLS

  7. [MRO] Search for resonant diboson production in the WW/WZ???jj decay channels with the ATLAS detector at ?s=7??TeV

    E-Print Network [OSTI]

    Taylor, Frank E.

    A search for resonant diboson production using a data sample corresponding to 4.7??fb[superscript -1] of integrated luminosity collected by the ATLAS experiment at the Large Hadron Collider in pp collisions at ?s=7??TeV ...

  8. Presenter: Leigh Tesfatsion Professor of Econ, Math, and Electrical and Comp. Engineering

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Offers in MISO MW 10 10 10 10 10 10 10 10 Minimum acceptable price (sale reservation price) for each MW $/MWh #12;8 Form of GenCo Supply Offers in MISO BPM-002-r8, 4.2.2.2.1, p. 4-26 (July 7, 2010) * xxx #12;9 LSE Price-Sensitive Demand Bids in MISO BPM-002-r8, 4.3.2, 4-84 (July 7, 2010) #12;10 ISO Net Surplus

  9. Coordination of Retail Demand Response with Midwest ISO Markets

    E-Print Network [OSTI]

    Bharvirkar, Ranjit

    2008-01-01

    Robinson, Michael, 2008, "Demand Response in Midwest ISOPresentation at MISO Demand Response Working Group Meeting,Coordination of Retail Demand Response with Midwest ISO

  10. Coordination of Retail Demand Response with Midwest ISO Markets

    E-Print Network [OSTI]

    Bharvirkar, Ranjit

    2008-01-01

    2. Wholesale and Retail Electricity Markets in the Midwestwholesale and retail electricity markets. When MISO calledthe wholesale and retail electricity markets in the Midwest

  11. Derivation of Locational Marginal Prices for Restructured Wholesale Power Markets

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    the performance of these markets. In this paper, different AC and DC optimal power flow (OPF) models are presented Operator (MISO). Keywords: Locational marginal pricing, wholesale power market, AC optimal power flow, DC optimal power flow, U.S. Midwest Independent System Operator (MISO). #12;3 1 INTRODUCTION In an April 2003

  12. Algorithms for Grapheme-Phoneme Translation for English and French

    E-Print Network [OSTI]

    , 200 Forest St. (MRO1-1/L31), Marlborough, MA 01752-3011. E-mail: vitale@dectlk.enet.dec.com (~) 1997

  13. FREQUENCY DOMAIN SYSTEM IDENTIFICATION OF A LIGHT HELICOPTER IN HOVER

    E-Print Network [OSTI]

    the identification and show good predictive capabilities. From the results it is possible to conclude of the project, partic- ularly on the implementation of a MISO (Multi Input Single Output) fully coupled transfer

  14. Retail Demand Response in Southwest Power Pool

    E-Print Network [OSTI]

    Bharvirkar, Ranjit

    2009-01-01

    EIA EIS EDR EEA FERC HP IOU IRC ISO LMP LBNL LSE MISO MP MROwith the ISO/RTO Council (IRC) on two initiatives to advancein ISO/RTO Council (IRC) DR activities Set specific goals

  15. On adaptive transmission, signal detection and channel estimation for multiple antenna systems 

    E-Print Network [OSTI]

    Xie, Yongzhe

    2004-11-15

    study the minimum outage probability transmission schemes in a multiple-input-single-output (MISO) flat fading channel assuming partial CSIT. Considering two special cases: the mean feedback and the covariance feedback, we derive the optimum spatial...

  16. Compressive Inverse Scattering I. High Frequency SIMO Measurements

    E-Print Network [OSTI]

    Albert C. Fannjiang

    2010-01-18

    Inverse scattering from discrete targets with the single-input-multiple-output (SIMO), multiple-input-single-output (MISO) or multiple-input-multiple-output (MIMO) measurements is analyzed by compressed sensing theory with and without the Born approximation. High frequency analysis of (probabilistic) recoverability by the $L^1$-based minimization/regularization principles is presented. In the absence of noise, it is shown that the $L^1$-based solution can recover exactly the target of sparsity up to the dimension of the data either with the MIMO measurement for the Born scattering or with the SIMO/MISO measurement for the exact scattering. The stability with respect to noisy data is proved for weak or widely separated scatterers. Reciprocity between the SIMO and MISO measurements is analyzed. Finally a coherence bound (and the resulting recoverability) is proved for diffraction tomography with high-frequency, few-view and limited-angle SIMO/MISO measurements.

  17. Midwest Transmission Workshop II Summary

    SciTech Connect (OSTI)

    Kevin Bryan

    2002-12-05

    OAK-B135 After introductions of all participants, Abby Arnold, RESOLVE, reviewed the purpose of the meeting and the agenda. The purpose of the workshop was to share the results of the Midwest Independent System Operator (MISO) scenario development for wind and other fuel sources and the corresponding implications for transmission throughout the MISO control area. The workshop agenda is included in Attachment A.

  18. The potential impacts of a competitive wholesale market in the midwest: A preliminary examination of centralized dispatch

    SciTech Connect (OSTI)

    Lesieutre, Bernard C.; Bartholomew, Emily; Eto, Joseph H.; Hale, Douglas; Luong, Thanh

    2004-07-01

    In March 2005, the Midwest Independent System Operator (MISO) will begin operating the first-ever wholesale market for electricity in the central and upper Midwestern portion of the United States. Region-wide, centralized, security-constrained, bid-based dispatch will replace the current system of decentralized dispatch by individual utilities and control areas. This report focuses on how the operation of generators may change under centralized dispatch. We analyze a stylized example of these changes by comparing a base case dispatch based on a ''snapshot'' taken from MISO's state estimator for an actual, historical dispatch (4 p.m., July 7, 2003) to a hypothetical, centralized dispatch that seeks to minimize the total system cost of production, using estimated cost data collected by the EIA. Based on these changes in dispatch, we calculate locational marginal prices, which in turn reveals the location of congestion within MISO's footprint, as well as the distribution of congestion revenues. We also consider two sensitivity scenarios that examine (1) the effect of changes in MISO membership (2003 vs. 2004 membership lists), and (2) different load and electrical data, based on a snapshot from a different date and time (1 p.m., Feb. 18, 2004). Although our analysis offers important insights into how the MISO market could operate when it opens, we do not address the question of the total benefits or costs of creating a wholesale market in the Midwest.

  19. Life-Cycle Water Impacts of U.S. Transportation Fuels

    E-Print Network [OSTI]

    Scown, Corinne Donahue

    2010-01-01

    Change x ISO LCA LCFS LCI LP LPG MED MRO MSF MTBE MWD MWDOCparticularly for diesel fuels, LPG and naphtha, but noDiesel Kerosene Gasoline LPG Other Products Mass Output (kg/

  20. 01 June 2006HME-HS Strategy and Architecture1 Aurora Industry DayAurora Industry Day

    E-Print Network [OSTI]

    CEV-1 Sub orbital space tourism Test flight Clipper HOPE Test flight of reusable vehicle ·Data relay Last update: 20 April 2006 2025202020152012201020082006 MRO Phoenix #12;01 June 2006HME

  1. HiRISE observations of gas sublimation-driven activity in Mars' southern polar regions: I. Erosion of the surface

    E-Print Network [OSTI]

    Byrne, Shane

    complete mar- tian southern spring. In some areas of the surface, beneath the conformal coating of seasonal' Antarctic circle. The capability of the MRO spacecraft to roll off-nadir and image features at different

  2. RADIO CONTROL CRICKET V2.0

    E-Print Network [OSTI]

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A PCLK PDATA PALE RADIO DATA SPI_SCK SPI_MOSI SPI_MISO CHP_SCK PCLK PDATA PALE ADC0 SPI_MISO CHP_OUT RF_DETECT AVCC AVCC VCC VCC AVCC VCC AVCC VCC VCC VCC J9 HDR 2 X AVCC AVCC AVCC AVCC RF_IN RF_OUT L1 L2 CHP_OUT R_BIAS XOSC1 XOSC2 DIO DCLK PCLK PDATA PALE RSSI C18 R13

  3. NEXT ASSEMBLY DWG. TYPE SOCORRO, NEW MEXICO 87801

    E-Print Network [OSTI]

    Groppi, Christopher

    11 12 13 14 15 16 17 18 19 20 21 22 23 24 J7 PWR IN -6.5 BIN +6.5 BIN +16.5 BIN -16.5 BIN MOSI MISO MOSI SCLK +5_A+5_A -5_A-5_A MFM- MFM+CFM+ CFM- MISO MOSI SCLK AGCV PWR MCoarseV CCoarseV MFMV CFMV DDSCS2 DDSCS3 M52+ M52- CSMONADC CSMONTEMP CSPROM WP CSAGCDAC FS EOC AGCV PWR AIN10 Master In Slave Out

  4. Integrated Retail and Wholesale (IRW) Power System Operations with Smart-Grid Functionality

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Integrated Retail and Wholesale (IRW) Power System Operations with Smart-Grid Functionality Leigh-NE, MISO, XM, RTE, MEC IRW Project: Integrated Retail/Wholesale Power System Operation with Smart-Grid Functionality 3 #12;4 Meaning of "Smart Grid Functionality"? For our project purposes: Smart-grid functionality

  5. RADIO CONTROL ADC0 (RSSI)

    E-Print Network [OSTI]

    _MISO CHP_OUT ADC0 (RSSI) FLASH INTERFACE FLASH_SI FLASH_SO FLASH_CLK SERIAL_ID UART INTERFACE UART_RXD0 INT2 PCLK PDATA RS232_EN CHP_OUT THERM_PWR PW[0..7] SPI_SCK US_IN_ENA POT_CS POT_SCK INT[0..3] AC- ADC

  6. What's happening in Midwest ISO market?

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    attributable to significantly decreased natural gas, oil and coal prices. (fuel costs represent the vast of Presentation Introduction Energy prices in 2006 Day-Ahead Market Performance Real-Time Market Performance;Introduction 2006 is the first full year of market operations in Midwest ISO. Electricity prices in MISO

  7. IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 57, NO. 2, FEBRUARY 2009 319 Outage Probability of

    E-Print Network [OSTI]

    Bhashyam, Srikrishna

    IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 57, NO. 2, FEBRUARY 2009 319 Outage Probability on the outage probability of multiple-input single-output (MISO) fading channels. Channel state information. With perfect CSIR, under a short-term power con- straint, we determine: (a) the outage probability

  8. A Functional Approach to Assessing Flexible Ramping Product's Impact on Electricity Market

    E-Print Network [OSTI]

    plan with respect to renewable energy pen- etration (in particular, wind and solar power) is constantly. While CAISO and MISO are leading the design, it is not clear how such products may affect stressing the power system due to their stochastic nature. For example, California requires 33% of its

  9. Separation and Volatility of Locational Marginal Prices in Restructured Wholesale Power Markets

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    ­ in U.S. energy regions in the midwest (MISO), New England (ISO-NE), New York (NYISO), the mid Test Bed I. INTRODUCTION THE wholesale power market design proposed by the U.S. Federal Energy, it is critical for market operators in these regions to understand how LMPs respond under alternative structural

  10. Dynamic LMP Response Under Alternative Price-Cap and Price-Sensitive Demand Scenarios

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    scheduled for implementation) in the midwest (MISO), New England (ISO-NE), New York (NYISO), the mid1 Dynamic LMP Response Under Alternative Price-Cap and Price-Sensitive Demand Scenarios Hongyan Li protocols I. INTRODUCTION IN April 2003 the U.S. Federal Energy Regulatory Commis- sion issued a white paper

  11. Integrated Retail and Wholesale (IRW) Power System Operations with Smart-Grid Functionality

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Integrated Retail and Wholesale (IRW) Power System Operations with Smart-Grid Functionality Leigh-NE, MISO, XM, RTE, MEC IRW Project: Integrated Retail/Wholesale Power System Operation with Smart on business practices manuals for restructured North American electric power markets Realistically rendered

  12. Two-Settlement Electric Power Markets with Dynamic-Price Contracts

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Two-Settlement Electric Power Markets with Dynamic-Price Contracts 27 July 2011 IEEE PES GM: Personnel from PNNL/DOE, XM, RTE, MEC, & MISO IRW Project:IRW Project: Integrated Retail/Wholesale PowerIntegrated Retail/Wholesale Power System Operation with SmartSystem Operation with Smart--Grid Functionality

  13. Development progress of the Materials Analysis and Particle Probe

    SciTech Connect (OSTI)

    Lucia, M., E-mail: mlucia@pppl.gov; Kaita, R.; Majeski, R.; Boyle, D. P.; Schmitt, J. C.; Onge, D. A. St. [Princeton Plasma Physics Laboratory (PPPL), Princeton, New Jersey 08543 (United States); Bedoya, F.; Allain, J. P. [Department of Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign (UIUC), Urbana, Illinois 61801 (United States)

    2014-11-15

    The Materials Analysis and Particle Probe (MAPP) is a compact in vacuo surface science diagnostic, designed to provide in situ surface characterization of plasma facing components in a tokamak environment. MAPP has been implemented for operation on the Lithium Tokamak Experiment at Princeton Plasma Physics Laboratory (PPPL), where all control and analysis systems are currently under development for full remote operation. Control systems include vacuum management, instrument power, and translational/rotational probe drive. Analysis systems include onboard Langmuir probes and all components required for x-ray photoelectron spectroscopy, low-energy ion scattering spectroscopy, direct recoil spectroscopy, and thermal desorption spectroscopy surface analysis techniques.

  14. U N I V E R S I T Y of H O U S T O N MANUAL OF ADMINISTRATIVE POLICIES AND PROCEDURES

    E-Print Network [OSTI]

    Azevedo, Ricardo

    Rebate March 7, 2002; Revised April 10, 2007 Page 1 of 4 I. PURPOSE AND SCOPE This MAPP establishes policies and procedures to be followed by the University of Houston (UH) with respect to rebating tuition to undergraduate students who comply with Texas Education Code, Section 54.0065 (Tuition Rebate for Certain

  15. EIS-0300: Minnesota Agri-Power Project: Biomass for Rural Development, Granite Falls, Minnesota

    Broader source: Energy.gov [DOE]

    This EIS analyzes DOE and the Minnesota Environmental Quality Boards' [MEQB, a Minnesota State agency] decision to support a proposal by the Minnesota Valley Alfalfa Producers (MnVAP) to construct and operate a 75–103 megawatt biomass fueled gasifier and electric generating facility, known as the Minnesota Agri-Power Plant (MAPP), and associated transmission lines and alfalfa processing facilities.

  16. Combined Cycle Combustion Turbines

    E-Print Network [OSTI]

    and baseload · Can provide support for renewable power and serve as coal replacement · Becoming more flexible, Oregon and Washington ­ along with a few selected NERC regions: NPCC ­ the Northeastern US and Canada WECC - the West (the Northwest is included) TRE - most of Texas MRO ­ the upper Midwest US and Canada

  17. Pacific Northwest National Laboratory

    E-Print Network [OSTI]

    and informs surveys of natural resources, coastal security and emergency response · develop new sources, electronics, sensors and integration capabilities. Sequim MRO helps clients · understand the effects and the Columbia River · effects of oil exploration in the Gulf of Mexico · migration of salmon in Northwest inland

  18. Synthesis of controllers for non-minimum phase and unstable systems using non-sequential MIMO quantitative feedback theory 

    E-Print Network [OSTI]

    Lan, Chenyang

    2005-08-29

    of Committee) Alexander Parlos (Member) Shankar P. Bhattacharyya (Member) Dennis L. O'Neal (Interim Head of Department) May 2004 Major Subject: Mechanical Engineering iii ABSTRACT Synthesis of Controllers for Non... the synthesis of the multivariable problem starts by considering the diagonal entries, iiii qP /1)( 1 =? , derived from the plant transfer function matrix P that are used to develop a controller. In effect the design problem is reduced to several MISO...

  19. Coordination of Retail Demand Response with Midwest ISO Markets

    SciTech Connect (OSTI)

    Bharvirkar, Ranjit; Bharvirkar, Ranjit; Goldman, Charles; Heffner, Grayson; Sedano, Richard

    2008-05-27

    The Organization of Midwest ISO States (OMS) launched the Midwest Demand Resource Initiative (MWDRI) in 2007 to identify barriers to deploying demand response (DR) resources in the Midwest Independent System Operator (MISO) region and develop policies to overcome them. The MWDRI stakeholders decided that a useful initial activity would be to develop more detailed information on existing retail DR programs and dynamic pricing tariffs, program rules, and utility operating practices. This additional detail could then be used to assess any"seams issues" affecting coordination and integration of retail DR resources with MISO's wholesale markets. Working with state regulatory agencies, we conducted a detailed survey of existing DR programs, dynamic pricing tariffs, and their features in MISO states. Utilities were asked to provide information on advance notice requirements to customers, operational triggers used to call events (e.g. system emergencies, market conditions, local emergencies), use of these DR resources to meet planning reserves requirements, DR resource availability (e.g., seasonal, annual), participant incentive structures, and monitoring and verification (M&V) protocols. This report describes the results of this comprehensive survey and discusses policy implications for integrating legacy retail DR programs and dynamic pricing tariffs into organized wholesale markets. Survey responses from 37 MISO members and 4 non-members provided information on 141 DR programs and dynamic pricing tariffs with a peak load reduction potential of 4,727 MW of retail DR resource. Major findings of this study area:- About 72percent of available DR is from interruptible rate tariffs offered to large commercial and industrial customers, while direct load control (DLC) programs account for ~;;18percent. Almost 90percent of the DR resources included in this survey are provided by investor-owned utilities. - Approximately, 90percent of the DR resources are available with less than two hours advance notice and over 1,900 MW can be dispatched on less than thirty minutes notice. These legacy DR programs are increasingly used by utilities for economic in addition to reliability purposes, with over two-thirds (68percent) of these programs callable based on market conditions. - Approximately 60percent of DLC programs and 30percent of interruptible rate programs called ten or more DR events in 2006. Despite the high frequency of DR events, customer complaints remained low. The use of economic criteria to trigger DR events and the flexibility to trigger a large number of events suggests that DR resources can help improve the efficiency of MISO wholesale markets. - Most legacy DR programs offered a reservation payment ($/kW) for participation; incentive payment levels averaged about $5/kW-month for interruptible rate tariffs and $6/kW-month for DLC programs. Few programs offered incentive payments that were explicitly linked to actual load reductions during events and at least 27 DR programs do not have penalties for non-performance. - Measurement and verification (M&V) protocols to estimate load impacts vary significantly across MISO states. Almost half of the DR programs have not been evaluated in recent times and thus performance data for DR events is not available. For many DLC programs, M&V protocols may need to be enhancedin order to allow participation in MISO's proposed EDR schedule. System operators and planners will need to develop more accurate estimates of the load reduced capability and actual performance.

  20. The Murchison Widefield Array Correlator

    E-Print Network [OSTI]

    Ord, S M; Emrich, D; Pallot, D; Wayth, R B; Clark, M A; Tremblay, S E; Arcus, W; Barnes, D; Bell, M; Bernardi, G; Bhat, N D R; Bowman, J D; Briggs, F; Bunton, J D; Cappallo, R J; Corey, B E; Deshpande, A A; deSouza, L; Ewell-Wice, A; Feng, L; Goeke, R; Greenhill, L J; Hazelton, B J; Herne, D; Hewitt, J N; Hindson, L; Hurley-Walker, H; Jacobs, D; Johnston-Hollitt, M; Kaplan, D L; Kasper, J C; Kincaid, B B; Koenig, R; Kratzenberg, E; Kudryavtseva, N; Lenc, E; Lonsdale, C J; Lynch, M J; McKinley, B; McWhirter, S R; Mitchell, D A; Morales, M F; Morgan, E; Oberoi, D; Offringa, A; Pathikulangara, J; Pindor, B; Prabu, T; Procopio, P; Remillard, R A; Riding, J; Rogers, A E E; Roshi, A; Salah, J E; Sault, R J; Shankar, N Udaya; Srivani, K S; Stevens, J; Subrahmanyan, R; Tingay, S J; Waterson, M; Webster, R L; Whitney, A R; Williams, A; Williams, C L; Wyithe, J S B

    2015-01-01

    The Murchison Widefield Array (MWA) is a Square Kilometre Array (SKA) Precursor. The telescope is located at the Murchison Radio--astronomy Observatory (MRO) in Western Australia (WA). The MWA consists of 4096 dipoles arranged into 128 dual polarisation aperture arrays forming a connected element interferometer that cross-correlates signals from all 256 inputs. A hybrid approach to the correlation task is employed, with some processing stages being performed by bespoke hardware, based on Field Programmable Gate Arrays (FPGAs), and others by Graphics Processing Units (GPUs) housed in general purpose rack mounted servers. The correlation capability required is approximately 8 TFLOPS (Tera FLoating point Operations Per Second). The MWA has commenced operations and the correlator is generating 8.3 TB/day of correlation products, that are subsequently transferred 700 km from the MRO to Perth (WA) in real-time for storage and offline processing. In this paper we outline the correlator design, signal path, and proce...

  1. Impact of deformation on the atomic structures and dynamics of a Cu-Zr metallic glass: A molecular dynamics study

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Zhang, Y.; Mendelev, M. I.; Wang, C. Z.; Ott, R.; Zhang, F.; Besser, M. F.; Ho, K. M.; Kramer, M. J.

    2014-11-03

    Despite numerous studies on the atomic structures of Cu-Zr metallic glasses (MGs), their inherent structural ordering, e.g., medium-range order (MRO), remains difficult to describe. Specifically lacking is an understanding of how the MRO responds to deformation and the associated changes in atomic mobility. In this paper, we focus on the impact of deformation on MRO and associated effect on diffusion in a well-relaxed Cu64.5Zr35.5 MG by molecular dynamics simulations. The Cu-Zr MG exhibits a larger elastic limit of 0.035 and a yield stress of 3.5 GPa. The cluster alignment method was employed to characterize the icosahedral short-range order (ISRO) andmore »Bergman-type medium-range order (BMRO) in the models upon loading and unloading. From this analysis, we find the disruption of both ISRO and BMRO occurs as the strain reaches about 0.02, well below the elastic limit. Within the elastic limit, the total fractions of ISRO or BMRO can be fully recovered upon unloading. The diffusivity increases six to eight times in regions undergoing plastic deformation, which is due to the dramatic disruption of the ISRO and BMRO. As a result, by mapping the spatial distributions of the mobile atoms, we demonstrate the increase in atomic mobility is due to the extended regions of disrupted ISRO and more importantly BMRO.« less

  2. Impact of deformation on the atomic structures and dynamics of a Cu-Zr metallic glass: A molecular dynamics study

    SciTech Connect (OSTI)

    Zhang, Y.; Mendelev, M. I.; Wang, C. Z.; Ott, R.; Zhang, F.; Besser, M. F.; Ho, K. M.; Kramer, M. J.

    2014-11-03

    Despite numerous studies on the atomic structures of Cu-Zr metallic glasses (MGs), their inherent structural ordering, e.g., medium-range order (MRO), remains difficult to describe. Specifically lacking is an understanding of how the MRO responds to deformation and the associated changes in atomic mobility. In this paper, we focus on the impact of deformation on MRO and associated effect on diffusion in a well-relaxed Cu64.5Zr35.5 MG by molecular dynamics simulations. The Cu-Zr MG exhibits a larger elastic limit of 0.035 and a yield stress of 3.5 GPa. The cluster alignment method was employed to characterize the icosahedral short-range order (ISRO) and Bergman-type medium-range order (BMRO) in the models upon loading and unloading. From this analysis, we find the disruption of both ISRO and BMRO occurs as the strain reaches about 0.02, well below the elastic limit. Within the elastic limit, the total fractions of ISRO or BMRO can be fully recovered upon unloading. The diffusivity increases six to eight times in regions undergoing plastic deformation, which is due to the dramatic disruption of the ISRO and BMRO. As a result, by mapping the spatial distributions of the mobile atoms, we demonstrate the increase in atomic mobility is due to the extended regions of disrupted ISRO and more importantly BMRO.

  3. J319.xls

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

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nA Guidephysics_today_article.pdf More DocumentsEnergyat a Large FoodMISO

  4. United States based agricultural {open_quotes}waste products{close_quotes} as fillers in a polypropylene homopolymer

    SciTech Connect (OSTI)

    Jacobson, R.E.; Rowell, R.M.; Caulfield, D.F. [Forest Products Lab., Madison, WI (United States)] [and others

    1995-11-01

    With the advent of modern coupling agents (MAPP or maleic anhydride grafted polypropylene), the potential use of various types of renewable, sustainable agricultural byproducts as fillers in thermoplastics is explored. Over 7.7 billion pounds of fillers were used in the plastics industry in 1993. With sharp price increases in commodity thermoplastics (i.e. approximately 25% in 94`), the amount of fillers in thermoplastic materials will increase throughout the 90`s. Various types of agricultural fibers are evaluated for mechanical properties vs. 50% wood flour and 40% talc filled polypropylene (PP). The fibers included in this study are: kenaf core, oat straw, wheat straw, oat hulls, wood flour (pine), corncob, hard corncob, rice hulls, peanut hulls, corn fiber, soybean hull, residue, and jojoba seed meal. Composite interfaces were modified with MAPP to improve the mechanical properties through increased adhesion between the hydrophilic and polar fibers with the hydrophobic and non-polar matrix. The agro-waste composites had compositions of 50% agro-waste/48% PP/2% MAPP. All of the agricultural waste by-products were granulated through a Wiley mill with a 30 mesh screen and compounded in a high intensity shear-thermo kinetic mixer. The resultant blends were injection molded into ASTM standard samples and tested for tensile, flexural, and impact properties. This paper reports on the mechanical properties of the twelve resultant composites and compares them to wood flour and talc-filled polypropylene composites. The mechanical properties of kenaf core, oat straw, wheat straw, and oat hulls compare favorably to the wood flour and talc-filled PP, which are both commercially available and used in the automotive and furniture markets.

  5. Liquid Lithium Divertor and Scrape-Off-Layer Interactions on the National Spherical Torus Experiment: 2010 ? 2013 Progress Report

    SciTech Connect (OSTI)

    None

    2013-08-27

    The implementation of the liquid Lithium Divertor (LLD) in NSTX presented a unique opportunity in plasma-material interactions studies. A high density Langmuir Probe (HDLP) array utilizing a dense pack of triple Langmuir probes was built at PPPL and the electronics designed and built by UIUC. It was shown that the HDLP array could be used to characterize the modification of the EEDF during lithium experiments on NSTX as well as characterize the transient particle loads during lithium experiments as a means to study ELMs. With NSTX being upgraded and a new divertor being installed, the HDLP array will not be used in NSTX-U. However UIUC is currently helping to develop two new systems for depositing lithium into NSTX-U, a Liquid Lithium Pellet Dripper (LLPD) for use with the granular injector for ELM mitigation and control studies as well as an Upward-Facing Lithium Evaporator (U-LITER) based on a flash evaporation system using an electron beam. Currently UIUC has Daniel Andruczyk Stationed at PPPL and is developing these systems as well as being involved in preparing the Materials Analysis Particle Probe (MAPP) for use in LTX and NSTX-U. To date the MAPP preparations have been completed. New sample holders were designed by UIUC?s Research Engineer at PPPL and manufactured at PPPL and installed. MAPP is currently being used on LTX to do calibration and initial studies. The LLPD has demonstrated that it can produce pellets. There is still some adjustments needed to control the frequency and particle size. Equipment for the U-LITER has arrived and initial test are being made of the electron beam and design of the U-LITER in progress. It is expected to have these ready for the first run campaign of NSTX-U.

  6. Enterprise Reprise 

    E-Print Network [OSTI]

    Multiple Contributors

    1985-01-01

    ??.???????????????????.????.? 20 Uhu!w. 6.&r.d6 a new d-i.v~.ion duM.ng a duii.. ~:tJr.etch 06 ~ta4-mapp-i.ng ??? the.n a newly-~covelle.d Allen g~oup pay~ a 6~e.ndly c.a.U on the. En-tellpJv(Ae.! White Elephant, by Gloria Tookmanian .????..????.???...?.????? 33 F... will not have them shot incompetancet" Korek shrugged. "It would be somewhat ??? vastetul, Admiral.. " tor their "Bah!' qamkaneered. "Look at them now!" Tbe Enterprise team had tormed a 20 double line, through vhich gauntlet the Fighting Irish ran, shaking...

  7. Plant maintenance and outage management issue, 2005

    SciTech Connect (OSTI)

    Agnihotri, Newal (ed.)

    2005-01-15

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

  8. Outage Constrained Secrecy Rate Maximization Using Cooperative Jamming

    E-Print Network [OSTI]

    Luo, Shuangyu; Petropulu, Athina

    2012-01-01

    We consider a Gaussian MISO wiretap channel, where a multi-antenna source communicates with a single-antenna destination in the presence of a single-antenna eavesdropper. The communication is assisted by multi-antenna helpers that act as jammers to the eavesdropper. Each helper independently transmits noise which lies in the null space of the channel to the destination, thus creates no interference to the destination. Under the assumption that there is eavesdropper channel uncertainty, we derive the optimal covariance matrix for the source signal so that the secrecy rate is maximized subject to probability of outage and power constraints. Assuming that the eavesdropper channels follow zero-mean Gaussian model with known covariances, we derive the outage probability in a closed form. Simulation results in support of the analysis are provided.

  9. Description of Medium-Range Order in Amorphous Structures by Persistent Homology

    E-Print Network [OSTI]

    Takenobu Nakamura; Yasuaki Hiraoka; Akihiko Hirata; Emerson G. Escolar; Kaname Matsue; Yasumasa Nishiura

    2015-01-15

    The description of amorphous structures has been a long-standing problem, and conventional methods are insufficient for revealing intrinsic structures. In this Letter, we propose a computational homological approach that provides indicators of amorphous structures. We found curves in the persistence diagram (PD), which describes shapes and scales of medium-range order (MRO). The presence of such curves explicitly indicates geometric constraints on amorphous structures, which have not been observed using conventional methods. Furthermore, the PD reproduces the wavelength of the first sharp diffraction peak (FSDP) observed in the structure factor and clarifies the real space origin of FSDP. These curves are preserved under strain, indicating that PDs also contain information on elastic response.

  10. Advanced Communication and Control Solutions of Distributed Energy Resources (DER)

    SciTech Connect (OSTI)

    Asgeirsson, Haukur; Seguin, Richard; Sherding, Cameron; de Bruet, Andre, G.; Broadwater, Robert; Dilek, Murat

    2007-01-10

    This report covers work performed in Phase II of a two phase project whose objective was to demonstrate the aggregation of multiple Distributed Energy Resources (DERs) and to offer them into the energy market. The Phase I work (DE-FC36-03CH11161) created an integrated, but distributed, system and procedures to monitor and control multiple DERs from numerous manufacturers connected to the electric distribution system. Procedures were created which protect the distribution network and personnel that may be working on the network. Using the web as the communication medium for control and monitoring of the DERs, the integration of information and security was accomplished through the use of industry standard protocols such as secure SSL,VPN and ICCP. The primary objective of Phase II was to develop the procedures for marketing the power of the Phase I aggregated DERs in the energy market, increase the number of DER units, and implement the marketing procedures (interface with ISOs) for the DER generated power. The team partnered with the Midwest Independent System Operator (MISO), the local ISO, to address the energy market and demonstrate the economic dispatch of DERs in response to market signals. The selection of standards-based communication technologies offers the ability of the system to be deployed and integrated with other utilities’ resources. With the use of a data historian technology to facilitate the aggregation, the developed algorithms and procedures can be verified, audited, and modified. The team has demonstrated monitoring and control of multiple DERs as outlined in phase I report including procedures to perform these operations in a secure and safe manner. In Phase II, additional DER units were added. We also expanded on our phase I work to enhance communication security and to develop the market model of having DERs, both customer and utility owned, participate in the energy market. We are proposing a two-part DER energy market model--a utility need business model and an independent energy aggregator-business model. The approach of developing two group models of DER energy participation in the market is unique. The Detroit Edison (DECo, Utility)-led team includes: DTE Energy Technologies (Dtech, DER provider), Electrical Distribution Design (EDD, Virginia Tech company supporting EPRI’s Distribution Engineering Workstation, DEW), Systems Integration Specialists Company (SISCO, economic scheduling and real-time protocol integrator), and OSIsoft (PI software system for managing real-time information). This team is focused on developing the application engineering, including software systems necessary for DER’s integration, control and sale into the market place. Phase II Highlights Installed and tested an ICCP link with SSL (security) between DECo, the utility, and DTE Energy Technologies (DTECH), the aggregator, making DER data available to the utility for both monitoring and control. Installed and tested PI process book with circuit & DER operational models for DECo SOC/ROC operator’s use for monitoring of both utility circuit and customer DER parameters. The PI Process Book models also included DER control for the DECo SOC/ROC operators, which was tested and demonstrated control. The DER Tagging and Operating Procedures were developed, which allowed that control to be done in a safe manner, were modified for required MOC/MISO notification procedures. The Distribution Engineering Workstation (DEW) was modified to include temperature normalized load research statistics, using a 30 hour day-ahead weather feed. This allowed day-ahead forecasting of the customer load profile and the entire circuit to determine overload and low voltage problems. This forecast at the point of common coupling was passed to DTech DR SOC for use in their economic dispatch algorithm. Standard Work Instructions were developed for DER notification, sale, and operation into the MISO market. A software mechanism consisting of a suite of new and revised functionality was developed that integrated with the local ISO such that offe

  11. Short run effects of a price on carbon dioxide emissions from U.S. electric generators

    SciTech Connect (OSTI)

    Adam Newcomer; Seth A. Blumsack; Jay Apt; Lester B. Lave; M. Granger Morgan [Carnegie Mellon University, Pittsburgh, PA (United States). Carnegie Mellon Electricity Industry Center

    2008-05-01

    The price of delivered electricity will rise if generators have to pay for carbon dioxide emissions through an implicit or explicit mechanism. There are two main effects that a substantial price on CO{sub 2} emissions would have in the short run (before the generation fleet changes significantly). First, consumers would react to increased price by buying less, described by their price elasticity of demand. Second, a price on CO{sub 2} emissions would change the order in which existing generators are economically dispatched, depending on their carbon dioxide emissions and marginal fuel prices. Both the price increase and dispatch changes depend on the mix of generation technologies and fuels in the region available for dispatch, although the consumer response to higher prices is the dominant effect. We estimate that the instantaneous imposition of a price of $35 per metric ton on CO{sub 2} emissions would lead to a 10% reduction in CO{sub 2} emissions in PJM and MISO at a price elasticity of -0.1. Reductions in ERCOT would be about one-third as large. Thus, a price on CO{sub 2} emissions that has been shown in earlier work to stimulate investment in new generation technology also provides significant CO{sub 2} reductions before new technology is deployed at large scale. 39 refs., 4 figs., 2 tabs.

  12. Addressing the challenges of plasma-surface interactions in NSTX-U*

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Kaita, Robert [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Abrams, Tyler [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Jaworski, Michael [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Lucia, Matthew [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Nichols, Jacob H. [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Skinner, Charles H. [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Stotler, Daren [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Allain, Jean Paul [University of Illinois, Urbana, IL (United States); Bedoya, Felipe [University of Illinois, Urbana, IL (United States)

    2015-04-01

    The importance of conditioning plasma-facing components (PFCs) has long been recognized as a critical element in obtaining high-performance plasmas in magnetic confinement devices. Lithium coatings, for example, have been used for decades for conditioning PFCs. Since the initial studies on the Tokamak Fusion Test Reactor, experiments on devices with different aspect ratios and magnetic geometries like the National Spherical Torus Experiment (NSTX) continue to show the relationship between lithium PFCs and good confinement and stability. While such results are promising, their empirical nature do not reflect the detailed relationship between PFCs and the dynamic conditions that occur in the tokamak environment. A first step developing an understanding such complexity will be taken in the upgrade to NSTX (NSTX-U) that is nearing completion. New measurement capabilities include the Materials Analysis and Particle Probe (MAPP) for in situ surface analysis of samples exposed to tokamak plasmas. The OEDGE suite of codes, for example, will provide a new way to model the underlying mechanisms for such material migration in NSTX-U. This will lead to a better understanding of how plasma-facing surfaces evolve during a shot, and how the composition of the plasma facing surface influences the discharge performance we observe. This paper will provide an overview of these capabilities, and highlight their importance for NSTX-U plans to transition from carbon to high-Z PFCs.

  13. Addressing the challenges of plasma-surface interactions in NSTX-U*

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Kaita, Robert; Abrams, Tyler; Jaworski, Michael; Lucia, Matthew; Nichols, Jacob H.; Skinner, Charles H.; Stotler, Daren; Allain, Jean Paul; Bedoya, Felipe

    2015-04-01

    The importance of conditioning plasma-facing components (PFCs) has long been recognized as a critical element in obtaining high-performance plasmas in magnetic confinement devices. Lithium coatings, for example, have been used for decades for conditioning PFCs. Since the initial studies on the Tokamak Fusion Test Reactor, experiments on devices with different aspect ratios and magnetic geometries like the National Spherical Torus Experiment (NSTX) continue to show the relationship between lithium PFCs and good confinement and stability. While such results are promising, their empirical nature do not reflect the detailed relationship between PFCs and the dynamic conditions that occur in the tokamakmore »environment. A first step developing an understanding such complexity will be taken in the upgrade to NSTX (NSTX-U) that is nearing completion. New measurement capabilities include the Materials Analysis and Particle Probe (MAPP) for in situ surface analysis of samples exposed to tokamak plasmas. The OEDGE suite of codes, for example, will provide a new way to model the underlying mechanisms for such material migration in NSTX-U. This will lead to a better understanding of how plasma-facing surfaces evolve during a shot, and how the composition of the plasma facing surface influences the discharge performance we observe. This paper will provide an overview of these capabilities, and highlight their importance for NSTX-U plans to transition from carbon to high-Z PFCs.« less

  14. Characterization of a Low-Frequency Radio Astronomy Prototype Array in Western Australia

    E-Print Network [OSTI]

    Sutinjo, A T; Wayth, R B; Hall, P J; Acedo, E de Lera; Booler, T; Faulkner, A J; Feng, L; Hurley-Walker, N; Juswardy, B; Padhi, S K; Razavi-Ghods, N; Sokolowski, M; Tingay, S J; de Vaate, J G Bij

    2015-01-01

    We report characterization results for an engineering prototype of a next-generation low-frequency radio astronomy array. This prototype, which we refer to as the Aperture Array Verification System 0.5 (AAVS0.5), is a sparse pseudo-random array of 16 log-periodic antennas designed for 70-450 MHz. It is co-located with the Murchison Widefield Array (MWA) at the Murchison Radioastronomy Observatory (MRO) near the Australian Square Kilometre Array (SKA) core site. We characterize the AAVS0.5 using two methods: in-situ radio interferometry with astronomical sources and an engineering approach based on detailed full-wave simulation. In-situ measurement of the small prototype array is challenging due to the dominance of the Galactic noise and the relatively weaker calibration sources easily accessible in the southern sky. The MWA, with its 128 "tiles" and up to 3 km baselines, enabled in-situ measurement via radio interferometry. We present array sensitivity and beam pattern characterization results and compare to ...

  15. DEVELOPMENT OF GLASS MATRICES FOR HLW RADIOACTIVE WASTES

    SciTech Connect (OSTI)

    Jantzen, C.

    2010-03-18

    Vitrification is currently the most widely used technology for the treatment of high level radioactive wastes (HLW) throughout the world. Most of the nations that have generated HLW are immobilizing in either borosilicate glass or phosphate glass. One of the primary reasons that glass has become the most widely used immobilization media is the relative simplicity of the vitrification process, e.g. melt waste plus glass forming frit additives and cast. A second reason that glass has become widely used for HLW is that the short range order (SRO) and medium range order (MRO) found in glass atomistically bonds the radionuclides and governs the melt properties such as viscosity, resistivity, sulphate solubility. The molecular structure of glass controls contaminant/radionuclide release by establishing the distribution of ion exchange sites, hydrolysis sites, and the access of water to those sites. The molecular structure is flexible and hence accounts for the flexibility of glass formulations to waste variability. Nuclear waste glasses melt between 1050-1150 C which minimizes the volatility of radioactive components such as Tc{sup 99}, Cs{sup 137}, and I{sup 129}. Nuclear waste glasses have good long term stability including irradiation resistance. Process control models based on the molecular structure of glass have been mechanistically derived and have been demonstrated to be accurate enough to control the world's largest HLW Joule heated ceramic melter in the US since 1996 at 95% confidence.

  16. Regulatory Policy and Markets for Energy Storage in North America

    SciTech Connect (OSTI)

    Kintner-Meyer, Michael CW

    2014-05-14

    The last 5 years have been one of the most exciting times for the energy storage industry. We have seen significant advancements in the regulatory process to make accommodations for valuing and monetizing energy storage for what it provides to the grid. The most impactful regulatory decision for the energy storage industry has come from California, where the California Public Utilities Commission issued a decision that mandates procurement requirements of 1.325 GW for energy storage to 3 investor-own utilities in 4 stages: in 2014, 2016, 2018, and 2020. Furthermore, at the Federal level, FERC’s Order 755, requires the transmission operators to develop pay for performance tariffs for ancillary services. This has had direct impact on the market design of US competitive wholesale markets and the monetization of fast responding grid assets. While this order is technology neutral, it clearly plays into the fast-responding capability of energy storage technologies. Today PJM, CAISO, MISO, NYISO, and NE-ISO have implemented Order 755 and offer new tariff for regulation services based on pay-for-performance principles. Furthermore, FERC Order 784, issued in July 2013 requires transmission providers to consider speed and accuracy in determining the requirements for ancillary services. In November 2013, FERC issued Order 972, which revises the small generator interconnection agreement which declares energy storage as a power source. This order puts energy storage on par with existing generators. This paper will discuss the implementation of FERC’s Pay for Performance Regulation order at all ISOs in the U.S. under FERC regulatory authority (this excludes ERCOT). Also discussed will be the market impacts and overall impacts on the NERC regulation performance indexes. The paper will end with a discussion on the California and Ontario, Canada procurement mandates and the opportunity that it may present to the energy storage industry.

  17. Amorphous and nanocrystalline phase formation in highly-driven Al-based binary alloys

    SciTech Connect (OSTI)

    Kalay, Yunus Eren

    2008-10-15

    Remarkable advances have been made since rapid solidification was first introduced to the field of materials science and technology. New types of materials such as amorphous alloys and nanostructure materials have been developed as a result of rapid solidification techniques. While these advances are, in many respects, ground breaking, much remains to be discerned concerning the fundamental relationships that exist between a liquid and a rapidly solidified solid. The scope of the current dissertation involves an extensive set of experimental, analytical, and computational studies designed to increase the overall understanding of morphological selection, phase competition, and structural hierarchy that occurs under far-from equilibrium conditions. High pressure gas atomization and Cu-block melt-spinning are the two different rapid solidification techniques applied in this study. The research is mainly focused on Al-Si and Al-Sm alloy systems. Silicon and samarium produce different, yet favorable, systems for exploration when alloyed with aluminum under far-from equilibrium conditions. One of the main differences comes from the positions of their respective T{sub 0} curves, which makes Al-Si a good candidate for solubility extension while the plunging T{sub 0} line in Al-Sm promotes glass formation. The rapidly solidified gas-atomized Al-Si powders within a composition range of 15 to 50 wt% Si are examined using scanning and transmission electron microscopy. The non-equilibrium partitioning and morphological selection observed by examining powders at different size classes are described via a microstructure map. The interface velocities and the amount of undercooling present in the powders are estimated from measured eutectic spacings based on Jackson-Hunt (JH) and Trivedi-Magnin-Kurz (TMK) models, which permit a direct comparison of theoretical predictions. For an average particle size of 10 {micro}m with a Peclet number of {approx}0.2, JH and TMK deviate from each other. This deviation indicates an adiabatic type solidification path where heat of fusion is reabsorbed. It is interesting that this particle size range is also consistent with the appearance of a microcellular growth. While no glass formation is observed within this system, the smallest size powders appear to consist of a mixture of nanocrystalline Si and Al. Al-Sm alloys have been investigated within a composition range of 34 to 42 wt% Sm. Gas atomized powders of Al-Sm are investigated to explore the morphological and structural hierarchy that correlates with different degrees of departure from full equilibrium conditions. The resultant powders show a variety of structural selection with respect to amount of undercooling, with an amorphous structure appearing at the highest cooling rates. Because of the chaotic nature of gas atomization, Cu-block melt-spinning is used to produce a homogeneous amorphous structure. The as-quenched structure within Al-34 to 42 wt% Sm consists of nanocrystalline fcc-Al (on the order of 5 nm) embedded in an amorphous matrix. The nucleation density of fcc-Al after initial crystallization is on the order of 10{sup 22}-10{sup 23} m{sup -3}, which is 10{sup 5}-10{sup 6} orders of magnitude higher than what classical nucleation theory predicts. Detailed analysis of liquid and as-quenched structures using high energy synchrotron X-ray diffraction, high energy transmission electron microscopy, and atom probe tomography techniques revealed an Al-Sm network similar in appearance to a medium range order (MRO) structure. A model whereby these MRO clusters promote the observed high nucleation density of fcc-Al nanocrystals is proposed. The devitrification path was identified using high temperature, in-situ, high energy synchrotron X-ray diffraction techniques and the crystallization kinetics were described using an analytical Johnson-Mehl-Avrami (JMA) approach.

  18. Wind Energy Forecasting: A Collaboration of the National Center for Atmospheric Research (NCAR) and Xcel Energy

    SciTech Connect (OSTI)

    Parks, K.; Wan, Y. H.; Wiener, G.; Liu, Y.

    2011-10-01

    The focus of this report is the wind forecasting system developed during this contract period with results of performance through the end of 2010. The report is intentionally high-level, with technical details disseminated at various conferences and academic papers. At the end of 2010, Xcel Energy managed the output of 3372 megawatts of installed wind energy. The wind plants span three operating companies1, serving customers in eight states2, and three market structures3. The great majority of the wind energy is contracted through power purchase agreements (PPAs). The remainder is utility owned, Qualifying Facilities (QF), distributed resources (i.e., 'behind the meter'), or merchant entities within Xcel Energy's Balancing Authority footprints. Regardless of the contractual or ownership arrangements, the output of the wind energy is balanced by Xcel Energy's generation resources that include fossil, nuclear, and hydro based facilities that are owned or contracted via PPAs. These facilities are committed and dispatched or bid into day-ahead and real-time markets by Xcel Energy's Commercial Operations department. Wind energy complicates the short and long-term planning goals of least-cost, reliable operations. Due to the uncertainty of wind energy production, inherent suboptimal commitment and dispatch associated with imperfect wind forecasts drives up costs. For example, a gas combined cycle unit may be turned on, or committed, in anticipation of low winds. The reality is winds stayed high, forcing this unit and others to run, or be dispatched, to sub-optimal loading positions. In addition, commitment decisions are frequently irreversible due to minimum up and down time constraints. That is, a dispatcher lives with inefficient decisions made in prior periods. In general, uncertainty contributes to conservative operations - committing more units and keeping them on longer than may have been necessary for purposes of maintaining reliability. The downside is costs are higher. In organized electricity markets, units that are committed for reliability reasons are paid their offer price even when prevailing market prices are lower. Often, these uplift charges are allocated to market participants that caused the inefficient dispatch in the first place. Thus, wind energy facilities are burdened with their share of costs proportional to their forecast errors. For Xcel Energy, wind energy uncertainty costs manifest depending on specific market structures. In the Public Service of Colorado (PSCo), inefficient commitment and dispatch caused by wind uncertainty increases fuel costs. Wind resources participating in the Midwest Independent System Operator (MISO) footprint make substantial payments in the real-time markets to true-up their day-ahead positions and are additionally burdened with deviation charges called a Revenue Sufficiency Guarantee (RSG) to cover out of market costs associated with operations. Southwest Public Service (SPS) wind plants cause both commitment inefficiencies and are charged Southwest Power Pool (SPP) imbalance payments due to wind uncertainty and variability. Wind energy forecasting helps mitigate these costs. Wind integration studies for the PSCo and Northern States Power (NSP) operating companies have projected increasing costs as more wind is installed on the system due to forecast error. It follows that reducing forecast error would reduce these costs. This is echoed by large scale studies in neighboring regions and states that have recommended adoption of state-of-the-art wind forecasting tools in day-ahead and real-time planning and operations. Further, Xcel Energy concluded reduction of the normalized mean absolute error by one percent would have reduced costs in 2008 by over $1 million annually in PSCo alone. The value of reducing forecast error prompted Xcel Energy to make substantial investments in wind energy forecasting research and development.