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


1

Uninterruptible power supply (UPS) systems  

SciTech Connect

Use of this purchase specification is not mandatory. User should review the document and determine if it meets the user`s purpose. This document contains a fill-in-the-blanks guide specification for the procurement of uninterruptible power supply (UPS) systems greater than 10 kVA, organized as follows: Parts 1 through 7--technical requirements; Appendix A--technical requirements to be included in the proposal; Appendix B--UPS system data sheets to be completed by each bidder (Seller) and submitted with the proposal; Appendix C--general guidelines giving the specifier parameters for selecting a UPS system; it should be read before preparing an actual specification, and is not attached to the specification; Attachment 1--sketches prepared by the purchaser (Owner); Attachment 2--sample title page.

NONE

1997-04-01T23:59:59.000Z

2

Autonomous uninterruptible power-supply apparatus  

SciTech Connect

This invention relates broadly to a power supply apparatus, and in particular to an autonomous uninterruptible power supply apparatus. The purpose of an uninterruptible power supply (UPS) is to protect critical electrical loads from transient or steady-stage outages or disturbances in the primary power source. The basic configuration of a typical, commercially available, uninterruptible power supply is comprised at a minimum of a standby battery and a battery charger and may also include an inverter for AC applications. Systems of this type can be found in most computer installations and laboratory systems that cannot tolerate even momentary disturbances of input power. This document describes an autonomous uninterruptible power-supply apparatus utilizing a digital-processor unit as a control and monitor unit to measure and control input and output parameters in the power supply. A battery charger is utilized to maintain the voltage and current levels with the backup battery supply source which powers an inverter unit that converts the DC power to an AC output.

Masson, J.H.

1984-12-20T23:59:59.000Z

3

ENERGY STAR Uninterruptible Power Supply Specification Framework  

E-Print Network (OSTI)

This document describes the key building blocks that form the basis for every ENERGY STAR specification; these items are intended to provide the framework around which the EPA can develop an effective energy efficiency program for Uninterruptible Power Supply (UPS) devices in data center, small office / home office, and home entertainment applications. The principal objectives for this ENERGY STAR specification are threefold: (1) to provide purchasers with the means to identify the most energy efficient UPS solutions for their specific end-use application, (2) to provide tools and information to designers and managers looking to improve the efficiency of data center operations, and (3) to provide uniform efficiency testing conditions and reporting criteria to enable an informed purchase decision and efficiency-oriented comparison of products. EPA will look to harmonize energy efficiency requirements, where appropriate, to minimize the number of competing standards in the marketplace. The purpose of each building block is provided under the subheadings below, along with EPA’s preliminary thoughts on how each may ultimately be incorporated into the Version 1.0

unknown authors

2010-01-01T23:59:59.000Z

4

Nonlinear Control Techniques in Uninterruptible Power Supply Inverter: A Review  

Science Conference Proceedings (OSTI)

Summarizes the basic objectives of controllers for UPS system are tracking ability and robustness. To get this aims, many controllers have been proposed in the literature. In this paper a comprehensive review of the nonlinear control techniques of UPS ... Keywords: inverter, uninterruptible power supply, control techniques

Ghazanfar Shahgholian; Jawad Faiz; Pegah Shafaghi

2009-12-01T23:59:59.000Z

5

PUREX (SAMCONS) uninterruptible power supply (UPS) acceptance test procedure  

SciTech Connect

This Acceptance Test Procedure for the PUREX Surveillance and Monitoring and Control System (SAMCONS) Uninterruptible Power Supply (UPS) provides for testing and verifying the proper operation of the control panel alarms and trouble functions, the 6roper functioning of the AC inverter, ability of the battery supply to maintain the SAMCONS load for a minimum of two hours , and proper interaction with the SAMCONS Video graphic displays for alarm displays.

Blackaby, W.B.

1997-09-01T23:59:59.000Z

6

Performance Testing of a Flywheel-Based Uninterruptible Power Supply  

Science Conference Proceedings (OSTI)

Performance testing of a fully integrated flywheel-based uninterruptible power supply (UPS) confirmed that the Caterpillar UPS 250 unit offers an innovative power quality solution for a broad range of industrial and commercial applications. It provides stored energy, immediately available, to protect critical loads against temporary power disturbances such as outages, sags, and surges. This report provides complete details of performance testing of the UPS system, including test instrumentation and setup...

2002-07-17T23:59:59.000Z

7

Power Conditioning and Protection for Sensitive Electronic Medical Equipment Using Uninterruptible Power Supplies  

Science Conference Proceedings (OSTI)

This system compatibility test data describes how each of nine different model uninterruptible power supplies (UPSs) mitigate capacitor-switching, oscillatory, and impulsive voltage transients common to many healthcare facilities. Also included in this set of system compatibility test data is a step wise procedure that can be used to size a UPS for a single-phase piece of sensitive electronic equipment.

2003-12-31T23:59:59.000Z

8

Test of Polymer Electrolyte Membrane Fuel Cell / Uninterruptible Power Supply for Electric Utility Battery Replacement Markets  

Science Conference Proceedings (OSTI)

A sub-scale polymer electrolyte membrane (PEM) fuel cell/capacitor uninterruptible power supply (UPS) was designed and constructed based on previous research. Testing of this sub-scale UPS as a replacement for existing battery systems is documented in this report. The project verified that the PEM fuel cells, coupled with an ultracapacitor, could functionally replace batteries used for emergency power at electric generating stations. Remaining steps to commercialization include continuing market research...

2001-12-18T23:59:59.000Z

9

Emerging Technologies for Efficient Data Centers: Uninterruptible Power Supply Eco Mode, Liquid Cooling, and Evaporative Cooling  

Science Conference Proceedings (OSTI)

This report summarizes research in emerging technologies that improve data center energy efficiency, including evaporative cooling, liquid cooling, and high-efficiency eco mode operation of the uninterruptible power supply. The report describes the efficiency gains of these technologies and their impact on total data center energy use. It also identifies market barriers for each technology and potential next steps to promote adoption of these efficient technologies.

2013-12-09T23:59:59.000Z

10

Aging Management Guideline for commercial nuclear power plants: Battery chargers, inverters and uninterruptible power supplies. Final report  

SciTech Connect

This Aging Management Guideline (AMG) describes recommended methods for effective detection and mitigation of age-related degradation mechanisms in BWR and PWR commercial nuclear power plant battery chargers, inverters and uninterruptible power supplies important to license renewal. The intent of this AMG is to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR Part 54. This AMG is presented in a manner that allows personnel responsible for performance analysis and maintenance to compare their plant-specific aging mechanisms (expected or already, experienced) and aging management program activities to the more generic results and recommendations presented herein.

Berg, R.; Stroinski, M.; Giachetti, R. [Multiple Dynamics Corp., Southfield, MI (United States)

1994-02-01T23:59:59.000Z

11

DC picogrids: a case for local energy storage for uninterrupted power to DC appliances  

Science Conference Proceedings (OSTI)

An increasing number of appliances now operate on DC and providing uninterrupted power supply (UPS) to them through outages requires two conversions: first from an energy store, typically a DC battery, to AC mains and then from AC mains to the DC input ... Keywords: DC picogrid, conversion losses, power source identification

Sunil Kumar Ghai, Zainul Charbiwala, Swarnalatha Mylavarapu, Deva P. Seetharamakrishnan, Rajesh Kunnath

2013-01-01T23:59:59.000Z

12

Feasibility of Utility-Provided Uninterruptible DC Power for Telecommunication Applications  

Science Conference Proceedings (OSTI)

Providing uninterruptible power to the telecommunication industry is a natural fit for the expertise of the electric utility industry and represents a significant opportunity for revenue growth. This report analyzes the power requirements for different sectors of the telecommunication industry and examines existing and emerging technologies for providing uninterruptible power.

2001-11-30T23:59:59.000Z

13

Power Supplies  

Science Conference Proceedings (OSTI)

Figure: ...Fig. 5 Typical medium-frequency induction power supply incorporating (a) a parallel inverter and (b) a series inverter...

14

Power supply  

DOE Patents (OSTI)

A modular, low weight impedance dropping power supply with battery backup is disclosed that can be connected to a high voltage AC source and provide electrical power at a lower voltage. The design can be scaled over a wide range of input voltages and over a wide range of output voltages and delivered power.

Yakymyshyn, Christopher Paul (Seminole, FL); Hamilton, Pamela Jane (Seminole, FL); Brubaker, Michael Allen (Loveland, CO)

2007-12-04T23:59:59.000Z

15

Power supply  

SciTech Connect

An electric power supply employs a striking means to initiate ferroelectric elements which provide electrical energy output which subsequently initiates an explosive charge which initiates a second ferroelectric current generator to deliver current to the coil of a magnetic field current generator, creating a magnetic field around the coil. Continued detonation effects compression of the magnetic field and subsequent generation and delivery of a large output current to appropriate output loads.

Hart, Edward J. (Albuquerque, NM); Leeman, James E. (Albuquerque, NM); MacDougall, Hugh R. (Albuquerque, NM); Marron, John J. (Albuquerque, NM); Smith, Calvin C. (Amarillo, TX)

1976-01-01T23:59:59.000Z

16

Power Supplies  

Science Conference Proceedings (OSTI)

Table 2   Characteristics of the four major power sources for induction heating...state 180 Hz to 50 kHz 1 kW to 2 MW 75â??95 No standby current; high efficiency; no moving parts;

17

20-kW solar photovoltaic flat-panel power system for an uninterruptible power-system load in El Paso, Texas. Phase II. System fabrication. Final report October 1, 1979-May 31, 1981  

DOE Green Energy (OSTI)

The system plans, construction, integration and test, and performance evaluation are discussed for the photovoltaic power supply at the Newman Power Station in El Paso, Texas. The system consists of 64 parallel-connected panels, each panel containing nine series-connected photovoltaic modules. The system is connected, through power monitoring equipment, to an existing DC bus that supplies uninterruptible power to a computer that controls the power generating equipment. The site is described and possible environmental hazards are assessed. Site preparation and the installation of the photovoltaic panels, electrical cabling, and instrumentation subsystems are described. System testing includes initial system checkout, module performance test, control system test. A training program for operators and maintenance personnel is briefly described, including visual aids. Performance data collection and analysis are described, and actual data are compared with a computer simulation. System drawings are included. (LEW)

Risser, V.V.

1981-12-01T23:59:59.000Z

18

Magnets and Power Supplies  

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

Bibliography Up: APS Storage Ring Parameters Previous: Longitudinal Bibliography Up: APS Storage Ring Parameters Previous: Longitudinal bunch profile and Magnets and Power Supplies Dipole Magnets and Power Supplies Value Dipole Number 80+1 No. of power supplies 1 Magnetic length 3.06 m Core length 3.00 m Bending radius 38.9611 m Power supply limit 500.0 A Field at 7 GeV 0.599 T Dipole trim coils Number 80+1 No. of power supplies 80 Magnetic length 3.06 m Core length 3.00 m Power supply limit 20.0 A Maximum field 0.04 T Horizontal Correction Dipoles Number 317 No. of power supplies 317 Magnetic length 0.160 m Core length 0.07 m Power supply limit 150.0 A Maximum field 0.16 T Max. deflection at 7 GeV 1.1 mrad Vertical Corrector Dipoles Number 317 No. of power supplies 317

19

Power supply apparatus  

SciTech Connect

The outputs of a plurality of modules or generators of electrical energy, such as fuel cells, chemical storage batteries, solar cells, MHD generators and the like, whose outputs are different are consolidated efficiently. The modules supply a power distribution system through an inverter. The efficiency is achieved by interconnecting the modules with an alternating voltage supply and electronic valves so controlled that the alternating-voltage supply absorbs power from modules whose output voltage is greater than the voltage at which the inverter operates and supplies this power as a booster to modules whose output voltage is less than the voltage at which the inverter operates.

Dickey, D. E.

1984-09-18T23:59:59.000Z

20

Power Supplies for Precooler Ring  

SciTech Connect

Eight power supplies will energize the antiproton Precooler ring. there will be two series connected supplies per quadrant. These supplies will power 32 dipole and 19 quadrupole magnets. The resistance and inductance per quadrant is R = 1.4045 Ohms and L = 0.466. Each powr supply will have 12-phase series bridge rectifiers and will be energized from the 480 V 3-phase grid. The total of eight power supplies are numbered IA, IIA, IIIA, IVA, and IB, IIB, IIIB, and IVB. Each quadrant will contain one A and one B supply. A block diagram of the Precooler ring with its power supplies is shown in Figure 1.

Fuja, Raymond; Praeg, Walter

1980-12-12T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Sentry Power LLC | Open Energy Information  

Open Energy Info (EERE)

Name Sentry Power LLC Place New Castle, Delaware Zip 19720 Product Sentry Power sells battery-driven back up uninterrupted power supply systems for commercial and residential...

22

Switching power supply  

DOE Patents (OSTI)

The invention is a repratable capacitor charging, switching power supply. A ferrite transformer steps up a dc input. The transformer primary is in a full bridge configuration utilizing power MOSFETs as the bridge switches. The transformer secondary is fed into a high voltage, full wave rectifier whose output is connected directly to the energy storage capacitor. The transformer is designed to provide adequate leakage inductance to limit capacitor current. The MOSFETs are switched to the variable frequency from 20 to 50 kHz to charge a capacitor from 0.6 kV. The peak current in a transformer primary and secondary is controlled by increasing the pulse width as the capacitor charges. A digital ripple counter counts pulses and after a preselected desired number is reached an up-counter is clocked.

Mihalka, A.M.

1984-06-05T23:59:59.000Z

23

Reliability Estimates for Power Supplies  

Science Conference Proceedings (OSTI)

Failure rates for large power supplies at a fusion facility are critical knowledge needed to estimate availability of the facility or to set priorties for repairs and spare components. A study of the "failure to operate on demand" and "failure to continue to operate" failure rates has been performed for the large power supplies at DIII-D, which provide power to the magnet coils, the neutral beam injectors, the electron cyclotron heating systems, and the fast wave systems. When one of the power supplies fails to operate, the research program has to be either temporarily changed or halted. If one of the power supplies for the toroidal or ohmic heating coils fails, the operations have to be suspended or the research is continued at de-rated parameters until a repair is completed. If one of the power supplies used in the auxiliary plasma heating systems fails the research is often temporarily changed until a repair is completed. The power supplies are operated remotely and repairs are only performed when the power supplies are off line, so that failure of a power supply does not cause any risk to personnel. The DIII-D Trouble Report database was used to determine the number of power supply faults (over 1,700 reports), and tokamak annual operations data supplied the number of shots, operating times, and power supply usage for the DIII-D operating campaigns between mid-1987 and 2004. Where possible, these power supply failure rates from DIII-D will be compared to similar work that has been performed for the Joint European Torus equipment. These independent data sets support validation of the fusion-specific failure rate values.

Lee C. Cadwallader; Peter I. Petersen

2005-09-01T23:59:59.000Z

24

TRANSISTOR HIGH VOLTAGE POWER SUPPLY  

DOE Patents (OSTI)

High voltage, direct current power supplies are described for use with battery powered nuclear detection equipment. The particular advantages of the power supply described, are increased efficiency and reduced size and welght brought about by the use of transistors in the circuit. An important feature resides tn the employment of a pair of transistors in an alternatefiring oscillator circuit having a coupling transformer and other circuit components which are used for interconnecting the various electrodes of the transistors.

Driver, G.E.

1958-07-15T23:59:59.000Z

25

Multiple resonant railgun power supply  

DOE Patents (OSTI)

A multiple repetitive resonant railgun power supply provides energy for repetitively propelling projectiles from a pair of parallel rails. A plurality of serially connected paired parallel rails are powered by similar power supplies. Each supply comprises an energy storage capacitor, a storage inductor to form a resonant circuit with the energy storage capacitor and a magnetic switch to transfer energy between the resonant circuit and the pair of parallel rails for the propelling of projectiles. The multiple serial operation permits relatively small energy components to deliver overall relatively large amounts of energy to the projectiles being propelled.

Honig, Emanuel M. (Los Alamos, NM); Nunnally, William C. (Los Alamos, NM)

1988-01-01T23:59:59.000Z

26

Multiple resonant railgun power supply  

DOE Patents (OSTI)

A multiple repetitive resonant railgun power supply provides energy for repetitively propelling projectiles from a pair of parallel rails. A plurality of serially connected paired parallel rails are powered by similar power supplies. Each supply comprises an energy storage capacitor, a storage inductor to form a resonant circuit with the energy storage capacitor and a magnetic switch to transfer energy between the resonant circuit and the pair of parallel rails for the propelling of projectiles. The multiple serial operation permits relatively small energy components to deliver overall relatively large amounts of energy to the projectiles being propelled.

Honig, E.M.; Nunnally, W.C.

1985-06-19T23:59:59.000Z

27

Repetitive resonant railgun power supply  

DOE Patents (OSTI)

A repetitive resonant railgun power supply provides energy for repetitively propelling projectiles from a pair of parallel rails. The supply comprises an energy storage capacitor, a storage inductor to form a resonant circuit with the energy storage capacitor and a magnetic switch to transfer energy between the resonant circuit and the pair of parallel rails for the propelling of projectiles.

Honig, Emanuel M. (Los Alamos, NM); Nunnally, William C. (Los Alamos, NM)

1988-01-01T23:59:59.000Z

28

Repetitive resonant railgun power supply  

DOE Patents (OSTI)

A repetitive resonant railgun power supply provides energy for repetitively propelling projectiles from a pair of parallel rails. The supply comprises an energy storage capacitor, a storage inductor to form a resonant circuit with the energy storage capacitor and a magnetic switch to transfer energy between the resonant circuit and the pair of parallel rails for the propelling of projectiles.

Honig, E.M.; Nunnally, W.C.

1985-06-19T23:59:59.000Z

29

Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. |  

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

Power Right. Power Smart. Efficient Computer Power Supplies and Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. March 10, 2009 - 6:00am Addthis John Lippert Power supplies convert the AC power that you get from your electric company into the DC power consumed by most electronics, including your computer. We expect our power supplies to be safe, reliable, and durable. If they meet those criteria, then they're all alike, except for cost, right? Well, not exactly. You see, there's one other important feature that sets them apart: efficiency. And I don't know about you, but I believe waste is bad. For me, high efficiency is one important feature that's needed for something to be high quality. So isn't it ridiculous that most power

30

Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. |  

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

Power Right. Power Smart. Efficient Computer Power Supplies and Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. March 10, 2009 - 6:00am Addthis John Lippert Power supplies convert the AC power that you get from your electric company into the DC power consumed by most electronics, including your computer. We expect our power supplies to be safe, reliable, and durable. If they meet those criteria, then they're all alike, except for cost, right? Well, not exactly. You see, there's one other important feature that sets them apart: efficiency. And I don't know about you, but I believe waste is bad. For me, high efficiency is one important feature that's needed for something to be high quality. So isn't it ridiculous that most power

31

High voltage DC power supply  

DOE Patents (OSTI)

A high voltage DC power supply having a first series resistor at the output for limiting current in the event of a short-circuited output, a second series resistor for sensing the magnitude of output current, and a voltage divider circuit for providing a source of feedback voltage for use in voltage regulation is disclosed. The voltage divider circuit is coupled to the second series resistor so as to compensate the feedback voltage for a voltage drop across the first series resistor. The power supply also includes a pulse-width modulated control circuit, having dual clock signals, which is responsive to both the feedback voltage and a command voltage, and also includes voltage and current measuring circuits responsive to the feedback voltage and the voltage developed across the second series resistor respectively. 7 figs.

Droege, T.F.

1989-12-19T23:59:59.000Z

32

Power Supply Maintenance and Application Guide  

Science Conference Proceedings (OSTI)

Instrument power supplies are very reliable; however, there is limited information that ties together operating history, maintenance practices, and data associated with repairing versus replacing power supplies. Also, the issue of equipment obsolescence affects many of the considerations associated with making power supply maintenance decisions.

2001-12-21T23:59:59.000Z

33

Power supply design for Hadron Facility  

DOE Green Energy (OSTI)

Recently, a study investigated the feasibility of building a large 60 GeV, kaon factory accelerator. This paper presents the conceptual design of the magnet power supplies and energy storage system. In this study the following three systems were investigated: (a) power supply using storage generator; (b) power supply using inductive storage device; and (c) resonant power supplies. These systems were analyzed from both technical and economical points of view. It was found that all three systems are feasible and can be built using commercially available components. From a technical point of view, the system using inductive storage is the most advantageous. The resonant power supply is the most economical solution.

Karady, G.; Kansog, J.; Thiessen, H.A.; Schneider, E.

1987-01-01T23:59:59.000Z

34

Advanced Accessory Power Supply Topologies  

SciTech Connect

This Cooperative Research and Development Agreement (CRADA) began December 8, 2000 and ended September 30, 2009. The total funding provided by the Participant (General Motors Advanced Technology Vehicles [GM]) during the course of the CRADA totaled $1.2M enabling the Contractor (UT-Battelle, LLC [Oak Ridge National Laboratory, a.k.a. ORNL]) to contribute significantly to the joint project. The initial task was to work with GM on the feasibility of developing their conceptual approach of modifying major components of the existing traction inverter/drive to develop low cost, robust, accessory power. Two alternate methods for implementation were suggested by ORNL and both were proven successful through simulations and then extensive testing of prototypes designed and fabricated during the project. This validated the GM overall concept. Moreover, three joint U.S. patents were issued and subsequently licensed by GM. After successfully fulfilling the initial objective, the direction and duration of the CRADA was modified and GM provided funding for two additional tasks. The first new task was to provide the basic development for implementing a cascaded inverter technology into hybrid vehicles (including plug-in hybrid, fuel cell, and electric). The second new task was to continue the basic development for implementing inverter and converter topologies and new technology assessments for hybrid vehicle applications. Additionally, this task was to address the use of high temperature components in drive systems. Under this CRADA, ORNL conducted further research based on GM’s idea of using the motor magnetic core and windings to produce bidirectional accessory power supply that is nongalvanically coupled to the terminals of the high voltage dc-link battery of hybrid vehicles. In order not to interfere with the motor’s torque, ORNL suggested to use the zero-sequence, highfrequency harmonics carried by the main fundamental motor current for producing the accessory power. Two studies were conducted at ORNL. One was to put an additional winding in the motor slots to magnetically link with the high frequency of the controllable zero-sequence stator currents that do not produce any zero-sequence harmonic torques. The second approach was to utilize the corners of the square stator punching for the high-frequency transformers of the dc/dc inverter. Both approaches were successful. This CRADA validated the feasibility of GM’s desire to use the motor’s magnetic core and windings to produce bidirectional accessory power supply. Three joint U.S. patents with GM were issued to ORNL and GM by the U.S. Patent Office for the research results produced by this CRADA.

Marlino, L.D.

2010-06-15T23:59:59.000Z

35

Advanced Electrostatic Precipitator (ESP) Power Supplies Update  

Science Conference Proceedings (OSTI)

Manufacturers of new, high-frequency power supplies for electrostatic precipitators (ESPs) have continued to push the development of this technology steadily forward since the last EPRI report on the subject was published. The capacity of these new power supplies continues to grow and the reliability issues identified in the early applications are being steadily resolved. This report contains a description of the technology behind the new power supplies and an update on recent applications and future pla...

2006-03-27T23:59:59.000Z

36

Shock-activated electrochemical power supplies  

DOE Patents (OSTI)

A shock-activated electrochemical power supply is provided which is initiated extremely rapidly and which has a long shelf life. Electrochemical power supplies of this invention are initiated much faster than conventional thermal batteries. Power supplies of this invention comprise an inactive electrolyte and means for generating a high-pressure shock wave such that the shock wave is propagated through the electrolytes rendering the electrolyte electrochemically active. 2 figs.

Benedick, W.B.; Graham, R.A.; Morosin, B.

1988-11-08T23:59:59.000Z

37

Shock-activated electrochemical power supplies  

DOE Patents (OSTI)

A shock-activated electrochemical power supply is provided which is initiated extremely rapidly and which has a long shelf life. Electrochemical power supplies of this invention are initiated much faster than conventional thermal batteries. Power supplies of this invention comprise an inactive electrolyte and means for generating a high-pressure shock wave such that the shock wave is propagated through the electrolytes rendering the electrolyte electrochemically active.

Benedick, William B. (Albuquerque, NM); Graham, Robert A. (Los Lunas, NM); Morosin, Bruno (Albuquerque, NM)

1988-01-01T23:59:59.000Z

38

Shock-activated electrochemical power supplies  

DOE Patents (OSTI)

A shock-activated electrochemical power supply is provided which is initiated extremely rapidly and which has a long shelf life. Electrochemical power supplies of this invention are initiated much faster than conventional thermal batteries. Power supplies of this invention comprise an inactive electrolyte and means for generating a high-pressure shock wave such that the shock wave is propagated through the electrolyte rendering the electrolyte electrochemically active. 2 figs.

Benedick, W.B.; Graham, R.A.; Morosin, B.

1987-04-20T23:59:59.000Z

39

Power Supply Design for Resistance Spot Welding  

Science Conference Proceedings (OSTI)

According to a study of Edison Welding Institute, 20% of the welding quality issues are the weld schedule or power supply related. Therefore, the study of ...

40

A BIBLIOGRAPHY ON RADIOISOTOPE POWER SUPPLIES  

SciTech Connect

A bibliography is presented of reports on the research and development and space and terrestrial applications of radioisotope-fueled power supplies. (C.E.S.)

Axelrod, D.M.; Novarro, J.P.

1963-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Continuous Sustainable Power Supply - Energy Innovation Portal  

Benthic Microbial Fuel Cell The Naval Research Laboratory's benthic microbial fuel cell (BMFC) is a non-depletable power supply for marine-deployed ...

42

PEP MAGNET POWER SUPPLY SYSTEMS  

E-Print Network (OSTI)

The bend circuit requires 1858 volts at 1319 amps or 2450 kWtotal at 18 GeV. Four 600 volt supplies will be used, two inlocation vary from 293 to 538 volts at the 18 GeV operation

Jackson, L.T.

2010-01-01T23:59:59.000Z

43

Power Supply Options for Data Centers  

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

Power Supply Options for Data Centers Power Supply Options for Data Centers Title Power Supply Options for Data Centers Publication Type Report LBNL Report Number LBNL-63339 Year of Publication 2007 Authors Tschudi, William F., and Charles H. Williams Call Number LBNL-63339 Abstract For many federal facilities, the fastest growing end-use of electric energy is found in concentrations of computing capacity commonly known as data centers. For these users, the critical importance of information processing to their agency mission will present a serious challenge to meeting the aggressive new energy efficiency goals in Executive Order 13423. Federal energy managers can find a variety of methods for reducing energy intensity, in both design and operations, for these high-technology facilities . This report summarizes a recent demonstration of one such technique ? configuring power supply systems for data centers so that they use DC (direct current) power throughout, eliminating the conventional practice of multiple conversions from utility-supplied AC (alternating current) to DC and back again at every stage of the power supply system. This eliminates both the power loss and heat generated by each such conversion (which drives air conditioning energy use).

44

Positron Accumulator Ring (PAR) power supply  

SciTech Connect

The Positron Accumulator Ring (PAR) consists of 8 dipole magnets connected in series. These magnets are energized via one 12-pulse dc power supply. The power supply consists of four phase controlled half-wave wye group converters. Each of the two half-wave converters are connected through an interphase transformer to obtain a full-wave converter with 120{degrees} conduction. The input voltage for these two half-wave converters are 180{degrees} apart. The two full-wave converters are connected in parallel through a third interphase transformer. This type of connection of the converters not only provides the required output current, it also improves the input power factor of the power supply. The output of the wye group converters is filtered through a passive L-R-C filter to reduce the ripple content of the output current. At low current values of the power supply the current ripple is high, thus a large filter is needed, which adds to the cost of the power supply, however at high output current levels, the current ripple is less severe. The large size of the filter can be reduced by adding an anti-parallel rectifier diode(D1) to the output of the power supply. A freewheeling diode(D2) is connected before the choke to circulate the current once the power supply is turned off. In order to measure the current in the magnet a high precision, low drift, zero flux current transductor is used. This transductor senses the magnet current which provides a feedback signal to control the gating of the converter`s thyristors. A true 14 bit Digital to Analog Converter (DAC) is programmed by the control computer for the required current value, providing a reference for the current regulator. Fast correction of the line transients is provided by a relatively fast voltage loop controlled by a high gain slow response current loop.

Fathizadeh, M.

1995-08-01T23:59:59.000Z

45

Magnet Power Supplies for TESLA Hans-Jrg Eckoldt  

E-Print Network (OSTI)

Magnet Power Supplies for TESLA Hans-Jörg Eckoldt DESY TESLA 2000-37 #12;2 Content Magnet Power Supplies for TESLA...............................................................10 Subsections of TESLA

46

High power fast ramping power supplies  

Science Conference Proceedings (OSTI)

Hundred megawatt level fast ramping power converters to drive proton and heavy ion machines are under research and development at accelerator facilities in the world. This is a leading edge technology. There are several topologies to achieve this power level. Their advantages and related issues will be discussed.

Marneris,I.; Bajon, E.; Bonati, R.; Sandberg, J.; Roser, T.; Tsoupas, N.

2009-05-04T23:59:59.000Z

47

Auxiliary power supply with kinetic energy storage  

SciTech Connect

Alternating current is supplied to an auxiliary load on a from a power supply comprised of a dc-energized inverter and a synchronous machine coupled to the inverter. The inverter supplies the alternating current requirements of the load up to the normal steady state load current magnitude. The synchronous machine stores kinetic energy when the load current load does not exceed its normal steady state magnitude, and converts kinetic energy into electrical energy to supply the load current requirements in excess of its normal steady-state load magnitude and to supply load current whenever the dc source inverter connection is interrupted. Frequency and amplitude of load voltage are regulated by operator commands through control apparatus coupled to the inverter and the synchronous machine.

Plunkett, A.B.; Turnbull, F.G.

1982-03-23T23:59:59.000Z

48

Advanced Power Supply Demonstration: High Frequency Power Supplies for Electrostatic Precipitator (ESP) Applications  

Science Conference Proceedings (OSTI)

New, high frequency supplies to power electrostatic precipitators (ESPs) are being introduced to the utility industry. These power supplies are smaller, lighter, and more versatile than the 60-Hz supplies they replace. As with so many new technologies, a number of problems have been encountered in some of the early applications. This report describes the principles of operation, the advantages and disadvantages, and the state of development of the new technology.

2004-03-23T23:59:59.000Z

49

Meeting on Battery Chargers and External Power Supplies | Department...  

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

Sites Power Marketing Administration Other Agencies You are here Home Meeting on Battery Chargers and External Power Supplies Meeting on Battery Chargers and External Power...

50

Building Technologies Office: Battery Chargers and External Power Supplies  

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

Battery Chargers and Battery Chargers and External Power Supplies Framework Document Public Meeting to someone by E-mail Share Building Technologies Office: Battery Chargers and External Power Supplies Framework Document Public Meeting on Facebook Tweet about Building Technologies Office: Battery Chargers and External Power Supplies Framework Document Public Meeting on Twitter Bookmark Building Technologies Office: Battery Chargers and External Power Supplies Framework Document Public Meeting on Google Bookmark Building Technologies Office: Battery Chargers and External Power Supplies Framework Document Public Meeting on Delicious Rank Building Technologies Office: Battery Chargers and External Power Supplies Framework Document Public Meeting on Digg Find More places to share Building Technologies Office: Battery

51

ATF2 High Availability Power Supplies  

SciTech Connect

ATF2 is an accelerator test facility modeled after the final focus beamline envisioned for the ILC. By the end of 2008, KEK plans to commission the ATF2 [1]. SLAC and OCEM collaborated on the design of 38 power systems for beamline magnets. The systems range in output power from 1.5 kW to 6 kW. Since high availability is essential for the success of the ILC, Collaborators employed an N+1 modular approach, allowing for redundancy and the use of a single power module rating. This approach increases the availability of the power systems. Common power modules reduces inventory and eases maintenance. Current stability requirements are as tight as 10 ppm. A novel, SLAC designed 20-bit Ethernet Power Supply Controller provides the required precision current regulation. In this paper, Collaborators present the power system design, the expected reliability, fault immunity features, and the methods for satisfying the control and monitoring challenges. Presented are test results and the status of the power systems.

Bellomo, A; Lira, C.de; Lam, B.; MacNair, D.; White, G.; /SLAC

2008-06-27T23:59:59.000Z

52

Emergency and backup power supplies at Department of Energy facilities: Augmented Evaluation Team -- Final report  

Science Conference Proceedings (OSTI)

This report documents the results of the Defense Programs (DP) Augmented Evaluation Team (AET) review of emergency and backup power supplies (i.e., generator, uninterruptible power supply, and battery systems) at DP facilities. The review was conducted in response to concerns expressed by former Secretary of Energy James D. Watkins over the number of incidents where backup power sources failed to provide electrical power during tests or actual demands. The AET conducted a series of on-site reviews for the purpose of understanding the design, operation, maintenance, and safety significance of emergency and backup power (E&BP) supplies. The AET found that the quality of programs related to maintenance of backup power systems varies greatly among the sites visited, and often among facilities at the same site. No major safety issues were identified. However, there are areas where the AET believes the reliability of emergency and backup power systems can and should be improved. Recommendations for improving the performance of E&BP systems are provided in this report. The report also discusses progress made by Management and Operating (M&O) contractors to improve the reliability of backup sources used in safety significant applications. One area that requires further attention is the analysis and understanding of the safety implications of backup power equipment. This understanding is needed for proper graded-approach implementation of Department of Energy (DOE) Orders, and to help ensure that equipment important to the safety of DOE workers, the public, and the environment is identified, classified, recognized, and treated as such by designers, users, and maintainers. Another area considered important for improving E&BP system performance is the assignment of overall ownership responsibility and authority for ensuring that E&BP equipment performs adequately and that reliability and availability are maintained at acceptable levels.

Not Available

1993-11-01T23:59:59.000Z

53

Hydrogen storage of energy for small power supply systems  

E-Print Network (OSTI)

Power supply systems for cell phone base stations using hydrogen energy storage, fuel cells or hydrogen-burning generators, and a backup generator could offer an improvement over current power supply systems. Two categories ...

Monaghan, Rory F. D. (Rory Francis Desmond)

2005-01-01T23:59:59.000Z

54

Recharging Energy Storage Devices and/or Supplying Electric Power  

sources for emergency and other uses. Patent Gui-Jia Su. Electric Vehicle Recharging and or Supplying Electrical Power,

55

Efficient and Reliable Reactive Power Supply and Consumption...  

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

Efficient and Reliable Reactive Power Supply and Consumption - Insights from an Integrated Program of Engineering and Economics Research Title Efficient and Reliable Reactive Power...

56

State-of-the-Art Electrostatic Precipitator Power Supplies  

Science Conference Proceedings (OSTI)

New electrostatic precipitator (ESP) power supply controls are available that can significantly enhance the performance of precipitators. These controls are capable of intermittent energization and bad corona detection, as well as ESP data archiving and performance troubleshooting. Furthermore, a new generation of power supplies for electrostatic precipitators is now on the market. These new high frequency supplies are smaller and lighter than the 60 hertz transformer – rectifier power supplies the...

2003-10-28T23:59:59.000Z

57

The AGS main magnet power supply upgrade  

SciTech Connect

The AGS Main Magnet Power Supply consists of a group of thyristor controlled power converters that operate from full rectify to full invert. In order to minimize ripple during the critical periods of injection and extraction 24 pulse converters are used for these portions of the cycle. The maximum voltage available in this mode is nominally 2,000 volts. The converters that are functional during this portion of the cycle are called the flat-top bank or ``F`` bank modules. During acceleration and invert where voltages of up to 12,000 volts are needed and where the ripple requirements are less stringent, groups of twelve pulse converters are operational. These converters are called the Pulsed bank or ``P`` bank modules. The original controlled rectifier system consisted of 96 large mercury filled excitron tubes divided equally between the P bank and F bank converters. These devices were extremely durable and ran successfully for over twenty years. It was, decided to replace the excitron farm with multiple arrangements of three-phase, full-wave, bridge modules that utilize silicon controlled rectifiers (SCR`s or thyristors) as the switching element. In order to match the existing transformer connections and buswork, eight identical modules were required; four for the P bank system and four for the F bank system. In order to reduce noise pickup and provide electrical isolation the high level SCR gate triggers are provided via fiberoptic cable. The status of various parameters such as water flow, auxiliary power supply performance, trigger circuitry failure, over voltage, overcurrent, and loss of phase reference are monitored via a programmable logic controller (PLCs). The PLCs use isolated input and output modules for various voltage levels from TTL to 150 Vdc to 125 Vac. These devices are extremely flexible and have allowed modifications and improvements that have enhanced the performance over any equivalent hard wired system.

Sandberg, J.N.; Casella, R.; Geller, J.; Marneris, I.; Soukas, A.; Schumburg, N.

1995-05-01T23:59:59.000Z

58

Neutron generator power supply modeling in EMMA  

SciTech Connect

Sandia National Laboratories has prime responsibility for neutron generator design and manufacturing, and is committed to developing predictive tools for modeling neutron generator performance. An important aspect of understanding component performance is explosively driven ferroelectric power supply modeling. EMMA (ElectroMechanical Modeling in ALEGRA) is a three dimensional compile time version of Sandia`s ALEGRA code. The code is built on top of the general ALEGRA framework for parallel shock-physics computations but also includes additional capability for modeling the electric potential field in dielectrics. The overall package includes shock propagation due to explosive detonation, depoling of ferroelectric ceramics, electric field calculation and coupling with a general lumped element circuit equation system. The AZTEC parallel iterative solver is used to solve for the electric potential. The DASPK differential algebraic equation package is used to solve the circuit equation system. Sample calculations are described.

Robinson, A.C.; Farnsworth, A.V.; Montgomery, S.T.; Peery, J.S; Merewether, K.O.

1996-12-01T23:59:59.000Z

59

E-beam high voltage switching power supply  

DOE Patents (OSTI)

A high-power power supply produces a controllable, constant high voltage put 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)

1996-01-01T23:59:59.000Z

60

E-beam high voltage switching power supply  

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.

1996-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

State-of-the-Art Power Supplies for Electrostatic Precipitators  

Science Conference Proceedings (OSTI)

As a part of an equipment update to the hot-side electrostatic precipitator (ESP) on Unit 2 at Mississippi Power Company's Plant Lansing Smith, the 60-Hz power supplies were replaced with high- frequency power supplies provided by NWL. This report contains a summary of data acquired during this first application of high-frequency power supplies on hot-side ESPs. These smaller, lighter power supplies have advanced to the point where they can now take advantage of the operational flexibility inherent in th...

2005-09-29T23:59:59.000Z

62

Digitally Controlled High Availability Power Supply  

SciTech Connect

This paper reports the design and test results on novel topology, high-efficiency, and low operating temperature, 1,320-watt power modules for high availability power supplies. The modules permit parallel operation for N+1 redundancy with hot swap capability. An embedded DSP provides intelligent start-up and shutdown, output regulation, general control and fault detection. PWM modules in the DSP drive the FET switches at 20 to 100 kHz. The DSP also ensures current sharing between modules, synchronized switching, and soft start up for hot swapping. The module voltage and current have dedicated ADCs (>200 kS/sec) to provide pulse-by-pulse output control. A Dual CAN bus interface provides for low cost redundant control paths. Over-rated module components provide high reliability and high efficiency at full load. Low on-resistance FETs replace conventional diodes in the buck regulator. Saturable inductors limit the FET reverse diode current during switching. The modules operate in a two-quadrant mode, allowing bipolar output from complimentary module groups. Controllable, low resistance FETs at the input and output provide fault isolation and allow module hot swapping.

MacNair, David; /SLAC

2008-09-25T23:59:59.000Z

63

Digitally Controlled High Availability Power Supply  

SciTech Connect

This paper will report on the test results of a prototype 1320 watt power module for a high availability power supply. The module will allow parallel operation for N+1 redundancy with hot swap capability. The two quadrant output of each module allows pairs of modules to provide a 4 quadrant (bipolar) operation. Each module employs a novel 4 FET buck regulator arranged in a bridge configuration. Each side of the bridge alternately conducts through a small saturable ferrite that limits the reverse current in the FET body diode during turn off. This allows hard switching of the FETs with low switching losses. The module is designed with over-rated components to provide high reliability and better then 97% efficiency at full load. The modules use a Microchip DSP for control, monitoring, and fault detection. The switching FETS are driven by PWM modules in the DSP at 60 KHz. A Dual CAN bus interface provides for low cost redundant control paths. The DSP will also provide current sharing between modules, synchronized switching, and soft start up for hot swapping. The input and output of each module have low resistance FETs to allow hot swapping and isolation of faulted units.

MacNair, David; /SLAC

2009-05-07T23:59:59.000Z

64

Integrative Power Supply Solution for Future Generation Vehicles.  

E-Print Network (OSTI)

?? Abstract: How to secure the power supply for future generation vehicles is an open question. This thesis uses Web-HIPRE as a tool of Decision… (more)

Zhou, Qinsheng

2012-01-01T23:59:59.000Z

65

Solar-hydrogen systems for remote area power supply.  

E-Print Network (OSTI)

??Remote area power supply (RAPS) is a potential early market for solar-hydrogen systems because of the comparatively high cost of conventional energy sources such as… (more)

Ali, S

2007-01-01T23:59:59.000Z

66

Wind-hydrogen energy systems for remote area power supply.  

E-Print Network (OSTI)

??Wind-hydrogen systems for remote area power supply are an early niche application of sustainable hydrogen energy. Optimal direct coupling between a wind turbine and an… (more)

Janon, A

2009-01-01T23:59:59.000Z

67

Modular high voltage power supply for chemical analysis  

DOE Patents (OSTI)

A high voltage power supply for use in a system such as a microfluidics system, uses a DC-DC converter in parallel with a voltage-controlled resistor. A feedback circuit provides a control signal for the DC-DC converter and voltage-controlled resistor so as to regulate the output voltage of the high voltage power supply, as well as, to sink or source current from the high voltage supply.

Stamps, James F. (Livermore, CA); Yee, Daniel D. (Dublin, CA)

2008-07-15T23:59:59.000Z

68

Modular high voltage power supply for chemical analysis  

DOE Patents (OSTI)

A high voltage power supply for use in a system such as a microfluidics system, uses a DC--DC converter in parallel with a voltage-controlled resistor. A feedback circuit provides a control signal for the DC--DC converter and voltage-controlled resistor so as to regulate the output voltage of the high voltage power supply, as well as, to sink or source current from the high voltage supply.

Stamps, James F. (Livermore, CA); Yee, Daniel D. (Dublin, CA)

2007-01-09T23:59:59.000Z

69

Research Findings on Energy Savings in Industrial Power Supplies  

Science Conference Proceedings (OSTI)

This report summarizes the final results of research conducted in 2007 on ways to improve the energy efficiency of industrial power supplies. The research findings and analysis confirm that significant opportunities exist for greater efficiencies in the use of a variety of industrial power supply technologies, especially in the area of transformers, motors, variable speed drives, and lighting.

2008-03-31T23:59:59.000Z

70

POWER SUPPLY EXPANSION AND THE NUCLEAR OPTION  

E-Print Network (OSTI)

the fact that eventually thermal plant is duplicated by CO -2 free nuclear power. Similarly), Autoproducing Power Plants in Poland: Technological Data, Warsaw 1993b. ______, Public Thermal Power Plants% of all generating capacity, 5.6 GW, is combined heat and power (CHP), or cogeneration, plant, which also

71

A Supply Chain Network Perspective for Electric Power Generation, Supply, Transmission, and Consumption  

E-Print Network (OSTI)

and less costly than older coal-fired power plants. In addition, technological advances in electricity, supply, trans- mission, and consumption is developed. The model is sufficiently general to handle the economics of power production. For example, new gas-fired combined cycle power plants are more effi- cient

Nagurney, Anna

72

Tokamak Physics Experiment (TPX) power supply design and development  

SciTech Connect

The Tokamak Physics Experiment (TPX) is an advanced tokamak project aimed at the production of quasi-steady state plasmas with advanced shape, heating, and particle control. TPX is to be built at the Princeton Plasma Physics Laboratory (PPPL) using many of the facilities from the Tokamak Fusion Test Reactor (TFTR). TPX will be the first tokamak to utilize superconducting (SC) magnets in both the toroidal field (TF) and poloidal field (PF) systems. This new feature requires a departure from the traditional tokamak power supply schemes. This paper describes the plan for the adaptation of the PPPL/FTR power system facilities to supply TPX. Five major areas are addressed, namely the AC power system, the TF, PF and Fast Plasma Position Control (FPPC) power supplies, and quench protection for the TF and PF systems. Special emphasis is placed on the development of new power supply and protection schemes.

Neumeyer, C. [Raytheon Engineers and Constructors, Princeton, NJ (United States). EBASCO Div.; Bronner, G.; Lu, E.; Ramakrishnan, S. [Princeton Univ., NJ (United States). Plasma Physics Lab.

1995-04-01T23:59:59.000Z

73

Power supply requirements for a tokamak fusion reactor  

DOE Green Energy (OSTI)

The power supply requirements for a 7-M major radius commercial tokamak reactor have been examined, using a system approach combining models of the reactor and poloidal coil set, plasma burn cycle and MHD calculations, and power supply characteristics and cost data. A conventional system using an MGF set and solid-state rectifier/inverter power supplies was studied in addition to systems using a homopolar generator, superconducting energy storage inductor, and dump resistors. The requirements and cost of the power supplies depend on several factors but most critically on the ohmic heating ramp time used for startup. Long ramp times (approx. > 8 s) seems to be feasible, from the standpoint of resistive volt-second losses, and would appear to make conventional systems quite competitive with nonconventional ones, which require further research and development.

Brooks, J.N.; Kustom, R.L.

1979-02-01T23:59:59.000Z

74

Reliant Energy Power Supply LLC | Open Energy Information  

Open Energy Info (EERE)

Reliant Energy Power Supply LLC Place Texas Utility Id 55765 Utility Location Yes Ownership W NERC ERCOT Yes Activity Wholesale Marketing Yes References EIA Form EIA-861 Final Data...

75

Solar Two is a concentrating solar power plant that can supply electric power "on demand"  

E-Print Network (OSTI)

Solar Two is a concentrating solar power plant that can supply electric power "on demand time ever, a utility-scale solar power plant can supply elec- tricity when the utility needs it most achievement. The design is based on lessons learned at Solar One, this country's first power tower. Solar One

Laughlin, Robert B.

76

E-beam high voltage switching power supply  

DOE Patents (OSTI)

A high power, solid state power supply is described for producing a controllable, constant high voltage output under varying and arcing loads suitable for powering an electron beam gun or other ion source. The present power supply is most useful for outputs in a range of about 100-400 kW or more. The power supply is comprised of a plurality of discrete switching type dc-dc converter modules, each comprising 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, and an output rectifier for producing a dc voltage at the output of each module. The inputs to the converter modules are fed from a common dc rectifier/filter and are linked together in parallel through decoupling networks to suppress high frequency input interactions. The outputs of the converter modules are linked together in series and connected to the input of the transmission line to the load through a decoupling and line matching network. The dc-dc converter modules are phase activated such that for n modules, each module is activated equally 360.degree./n out of phase with respect to a successive module. The phased activation of the converter modules, combined with the square current waveforms out of the step up transformers, allows the power supply to operate with greatly reduced output capacitance values which minimizes the stored energy available for discharge into an electron beam gun or the like during arcing. The present power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle using simulated voltage feedback signals and voltage feedback loops. Circuitry is also provided for sensing incipient arc currents reflected at the output of the power supply and for simultaneously decoupling the power supply circuitry from the arcing load.

Shimer, Daniel W. (Danville, CA); Lange, Arnold C. (Livermore, CA)

1997-01-01T23:59:59.000Z

77

E-beam high voltage switching power supply  

DOE Patents (OSTI)

A high power, solid state power supply is described for producing a controllable, constant high voltage output under varying and arcing loads suitable for powering an electron beam gun or other ion source. The present power supply is most useful for outputs in a range of about 100-400 kW or more. The power supply is comprised of a plurality of discrete switching type dc-dc converter modules, each comprising 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, and an output rectifier for producing a dc voltage at the output of each module. The inputs to the converter modules are fed from a common dc rectifier/filter and are linked together in parallel through decoupling networks to suppress high frequency input interactions. The outputs of the converter modules are linked together in series and connected to the input of the transmission line to the load through a decoupling and line matching network. The dc-dc converter modules are phase activated such that for n modules, each module is activated equally 360{degree}/n out of phase with respect to a successive module. The phased activation of the converter modules, combined with the square current waveforms out of the step up transformers, allows the power supply to operate with greatly reduced output capacitance values which minimizes the stored energy available for discharge into an electron beam gun or the like during arcing. The present power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle using simulated voltage feedback signals and voltage feedback loops. Circuitry is also provided for sensing incipient arc currents reflected at the output of the power supply and for simultaneously decoupling the power supply circuitry from the arcing load. 7 figs.

Shimer, D.W.; Lange, A.C.

1997-03-11T23:59:59.000Z

78

The Homopolar Generator as a Pulsed Industrial Power Supply  

E-Print Network (OSTI)

Technological breakthroughs in recent years have allowed the homopolar generator to be developed to a point where it can now be considered a highly reliable industrial pulsed power supply. These power supplies are capable of producing repetitive high current, low voltage electrical pulses. The homopolar generator is allowing numerous industrial joining and forming processes to be extended to larger work pieces and higher power output capabilities than were previously possible. The basic electrical and mechanical nature of the homopolar generator is described, and a brief discussion of the recent technological advances that have led to its development as a pulsed power supply is given. The homopolar generator is then discussed as a pulsed power supply for numerous industrial applications such as large metal cross section pulsed resistance welding, pulsed billet heating for subsequent hot working processes, pulsed heating for localized forging processes, and magnetic metal forming. Each of these application areas is discussed in detail including, technical advantages of the pulsed homopolar generator power, supply, as well as economic advantages of the system based on time and energy savings as compared with conventional power and heat sources. Each application discussion includes analytical and empirical data on the performance of an actual homopolar generator used for tests on that particular application. Information on current availability of various size homopolar generators is also presented.

Weldon, J. M.; Weldon, W. F.

1979-01-01T23:59:59.000Z

79

Acceptance test report: Backup power system  

SciTech Connect

Acceptance Test Report for construction functional testing of Project W-030 Backup Power System. Project W-030 provides a ventilation upgrade for the four Aging Waste Facility tanks. Backup power includes a single 125 KW diesel generator, three 10-kva uninterruptible power supply units, and all necessary control.

Cole, D.B. [Westinghouse Hanford Co., Richland, WA (United States)

1996-01-26T23:59:59.000Z

80

Advanced Power Supplies: Scoping Study and Technology Assessment  

Science Conference Proceedings (OSTI)

This report provides a scoping study and a technology assessment for advanced power supplies in three target markets: residential, commercial, and industrial. The study focuses on two general categories of applications that create additional value for utility end users: applications where electrotechnologies create opportunity for increased use of electricity, or where new processes based on power electronics and electricity can replace traditional methods.

1998-04-27T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

TL5002 Provides DDR Bus Termination Power Supply  

E-Print Network (OSTI)

Double data rate (DDR) bus termination power requirements bring new challenges to the power supply by requiring voltage tracking of a reference supply, requiring both sourcing and sinking current, and maintaining a high efficiency over a wide current range. This paper address these issues while presenting an example DDR design of 12 A of output current with voltage outputs between 0.9 V and 1.25 V. Issues and their solutions are provided for the power supply operating as a tradition buck power stage in the sourcing mode as well as for operating as a synchronous boost regulator in the sinking mode. Regulation and control loop characteristics of the examples are presented for both current sinking and sourcing modes of operation. Transient load response is also presented showing output voltage variation, as the current is transitioned from sourcing to sinking.

Robert Kollman; John Betten; Bang S. Lee

2001-01-01T23:59:59.000Z

82

Hidden costs of power cuts and battery backups  

Science Conference Proceedings (OSTI)

Many developing countries suffer from intense electricity deficits. For instance, the Indian electricity sector, despite having the world's fifth largest installed capacity, suffers from severe energy and peak power shortages. In February 2013, these ... Keywords: battery backups, electricity storage, inverters, losses, power cuts, power grids, uninterrupted power supply, ups

Deva P. Seetharam, Ankit Agrawal, Tanuja Ganu, Jagabondhu Hazra, Venkat Rajaraman, Rajesh Kunnath

2013-01-01T23:59:59.000Z

83

Optimal endogenous carbon taxes for electric power supply chains with power plants  

Science Conference Proceedings (OSTI)

In this paper, we develop a modeling and computational framework that allows for the determination of optimal carbon taxes applied to electric power plants in the context of electric power supply chain (generation/distribution/consumption) networks. ... Keywords: Carbon taxes, Electric power, Environmental policies, Network equilibria, Renewable energy, Supply chains, Variational inequalities

Anna Nagurney; Zugang Liu; Trisha Woolley

2006-11-01T23:59:59.000Z

84

Fuel cell power supply with oxidant and fuel gas switching  

DOE Patents (OSTI)

This invention relates to a fuel cell vehicular power plant. Fuel for the fuel stack is supplied by a hydrocarbon (methanol) catalytic cracking reactor and CO shift reactor. A water electrolysis subsystem is associated with the stack. During low power operation part of the fuel cell power is used to electrolyze water with hydrogen and oxygen electrolysis products being stored in pressure vessels. During peak power intervals, viz, during acceleration or start-up, pure oxygen and pure hydrogen from the pressure vessel are supplied as the reaction gases to the cathodes and anodes in place of air and methanol reformate. This allows the fuel cell stack to be sized for normal low power/air operation but with a peak power capacity several times greater than that for normal operation.

McElroy, James F. (Hamilton, MA); Chludzinski, Paul J. (Swampscott, MA); Dantowitz, Philip (Peabody, MA)

1987-01-01T23:59:59.000Z

85

Fuel cell power supply with oxidant and fuel gas switching  

DOE Patents (OSTI)

This invention relates to a fuel cell vehicular power plant. Fuel for the fuel stack is supplied by a hydrocarbon (methanol) catalytic cracking reactor and CO shift reactor. A water electrolysis subsystem is associated with the stack. During low power operation part of the fuel cell power is used to electrolyze water with hydrogen and oxygen electrolysis products being stored in pressure vessels. During peak power intervals, viz, during acceleration or start-up, pure oxygen and pure hydrogen from the pressure vessel are supplied as the reaction gases to the cathodes and anodes in place of air and methanol reformate. This allows the fuel cell stack to be sized for normal low power/air operation but with a peak power capacity several times greater than that for normal operation. 2 figs.

McElroy, J.F.; Chludzinski, P.J.; Dantowitz, P.

1987-04-14T23:59:59.000Z

86

Precision control of high temperature furnaces using an auxiliary power supply and charged practice current flow  

DOE Patents (OSTI)

Two power supplies are combined to control a furnace. A main power supply heats the furnace in the traditional manner, while the power from the auxiliary supply is introduced as a current flow through charged particles existing due to ionized gas or thermionic emission. The main power supply provides the bulk heating power and the auxiliary supply provides a precise and fast power source such that the precision of the total power delivered to the furnace is improved.

Pollock, George G. (San Ramon, CA)

1997-01-01T23:59:59.000Z

87

Precision control of high temperature furnaces using an auxiliary power supply and charged particle current flow  

DOE Patents (OSTI)

Two power supplies are combined to control a furnace. A main power supply heats the furnace in the traditional manner, while the power from the auxiliary supply is introduced as a current flow through charged particles existing due to ionized gas or thermionic emission. The main power supply provides the bulk heating power and the auxiliary supply provides a precise and fast power source such that the precision of the total power delivered to the furnace is improved. 5 figs.

Pollock, G.G.

1997-01-28T23:59:59.000Z

88

SLAC Next-Generation High Availability Power Supply  

SciTech Connect

SLAC recently commissioned forty high availability (HA) magnet power supplies for Japan's ATF2 project. SLAC is now developing a next-generation N+1 modular power supply with even better availability and versatility. The goal is to have unipolar and bipolar output capability. It has novel topology and components to achieve very low output voltage to drive superconducting magnets. A redundant, embedded, digital controller in each module provides increased bandwidth for use in beam-based alignment, and orbit correction systems. The controllers have independent inputs for connection to two external control nodes. Under fault conditions, they sense failures and isolate the modules. Power supply speed mitigates the effects of fault transients and obviates subsequent magnet standardization. Hot swap capability promises higher availability and other exciting benefits for future, more complex, accelerators, and eventually the International Linear Collider project.

Bellomo, P.; MacNair, D.; /SLAC; ,

2010-06-11T23:59:59.000Z

89

PEP-II Large Power Supplies Rebuild Program at SLAC  

SciTech Connect

Seven large power supplies (LGPS) with output ratings from 72kW to 270kW power PEP-II quad magnets in the electron-positron collider region. These supplies have posed serious maintenance and reliability problems since they were installed in 1997, resulting in loss of accelerator availability. A redesign/rebuild program was undertaken by the SLAC Power Conversion Department. During the 2004 summer shutdown all the control circuits in these supplies were redesigned and replaced. A new PWM control board, programmable logic controller, and touch panel have been installed to improve LGPS reliability, and to make troubleshooting easier. In this paper we present the details of this rebuilding program and results.

Bellomo, P.; Lipari, J.J.; de Lira, A.C.; Rafael, F.S.; /SLAC

2005-05-17T23:59:59.000Z

90

Power Supply Reliability Estimates for Experimental Fusion Facilities  

Science Conference Proceedings (OSTI)

This paper presents the results of a task to analyze the operating experience data for large, pulsed power supplies used at the DIII-D tokamak. This activity supports the International Thermonuclear Experimental Reactor (ITER) project by giving fusion-specific reliability values for large power supplies that energize neutral beams and magnets. These failure rate data are necessary to perform system availability calculations and to make estimates of the frequency of safety-significant events (e.g., power supply arcs or fires) that might occur in other fusion facilities such as ITER. The analysis shows that the DIII-D data results compare well with the results of similar data analysis work that the Italian National Agency for New Technologies, Energy and the Environment (ENEA) has performed on the JET tokamak and compare fairly with data from two accelerators.

Cadwallader, lee; Pinna, Tonio; Petersen, Peter

2006-11-01T23:59:59.000Z

91

An Efficient Supply Modulator for Linear Wideband RF Power Amplifiers  

E-Print Network (OSTI)

Radio Frequency (RF) Power Amplifiers are responsible for a considerable amount of the power consumption in the entire transmitter-receiver (transceiver) of modern communication systems. The stringent linearity requirements of multi-standard transceivers to minimize cross-talking effects makes Linear Power Amplifiers, particularly class A, the preferred choice in broadband transceivers. This linearity requirement coupled with the fact that the Power Amplifier operates at low transmit power during most of its operation makes the efficiency of the entire transceiver poor. The limited transceiver efficiency leads to a reduction in the battery life of battery operated portable devices like mobile phones; hence drastically limiting talk time. To alleviate this issue, several research groups propose solutions to improve PA power efficiency. However, these solutions usually have a low efficiency at low power and are mostly limited to narrow bandwidth applications. In this thesis, the efficiency of a class A Power amplifier in wideband wireless standards like WiMax is improved by dynamically controlling the bias current and supply voltage of the PA. An efficient supply modulator based on a switching regulator architecture is proposed for controlling the supply voltage. The switching regulator is found to be slew-limited by the bulky inductor and capacitor used to regulate the supply voltage. The proposed solution alleviates the slew rate limitation by adding a bang-bang controlled current source. The proposed supply modulator has an average power efficiency of 81.6 percent and is suitable for wireless standards with bandwidths up to 20MHz compared to the relatively lower efficiencies and bandwidths of state of the art modulators. A class-A PA is shown to promise an average power efficiency of 21.3 percent when the bias current is controlled dynamically and the supply voltage is varied using the proposed supply modulator. This is a significant improvement over the poor average efficiency of 1.06 percent for a fixed bias conventional linear class A PA. The project has been simulated using the TSMC 0.18 micrometer technology.

Turkson, Richard

2011-08-01T23:59:59.000Z

92

Power supplies and quench protection for the Tokamak Physics Experiment  

SciTech Connect

The Tokamak Physics Experiment (TPX) is an advanced tokamak project aimed at the production of quasi-steady state plasmas with advanced shape, heating, and particle control. TPX is to be built at the Princeton Plasma Physics Laboratory (PPPL) using many of the facilities from the Tokamak Fusion Test Reactor (TFTR). First plasma is scheduled for the year 2000. TPX will be the first tokamak to utilize superconducting (SC) magnets in both the toroidal field (TF) and poloidal field (PF) systems. This is a new feature which requires not only a departure from the traditional tokamak power supply schemes but also that ultra-reliable quench protection devices be used to rapidly discharge the stored energy from the magnets in the event of a quench. This paper describes the plan and basis for the adaptation and augmentation of the PPPL/TFTR power system facilities to supply TPX. Following a description of the basic operational requirements, four major areas are addressed, namely the AC power system, the TF power supply, the PF power supply, and quench protection for the TF and PF systems.

Neumeyer, C.L. [Raytheon Engineers & Constructors, Princeton, NJ (United States). EBASCO Div.

1994-07-01T23:59:59.000Z

93

Nuclear energy is an important source of power, supplying 20  

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

energy is an important source of power, supplying 20 energy is an important source of power, supplying 20 percent of the nation's electricity. More than 100 nuclear power plants are operating in the U.S., and countries around the world are implementing nuclear power as a carbon-free alternative to fossil fuels. We can maximize the climate and energy security benefits provided by responsible global nuclear energy expansion by developing options to increase the energy extracted from nuclear fuel, improve waste management, and strengthen nuclear nonproliferation controls. To develop viable technical solutions, these interdependent challenges must be addressed through tightly integrated multidisciplinary research and development efforts. Los Alamos National Laboratory is playing a key role in

94

A high-power switch-mode dc power supply for dynamic loads  

SciTech Connect

High-voltage dc power supplies are often required to operate with highly dynamic loads, such as arcs. A switch-mode dc power supply can offer significant advantages over conventional thyristor-based dc power supplies under such conditions. It can quickly turn off the supply to extinguish the arc, and it can quickly recover after the arc. It has a relatively small output filter capacitance, which results in small stored energy available to the arc. A 400-kW, 50-kV switch-mode dc power supply for an electron-beam gun that exploits these advantages was designed and tested. It uses four 100-kW, current-source-type dc-dc converters with inputs in parallel and outputs in series. The dc-dc converters operate at 20 kHz in the voltage regulator part and 10 kHz in the inverter, transformer, and output rectifier part of the circuit. Insulated gate bipolar transistors (IGBTs) are used as the power switches. Special techniques are used to protect the power supply and load against arcs and hard shorts. The power supply has an efficiency of 93%, an output voltage ripple of 1%, and fast dynamic response. In addition, it is nearly one-third the size of conventional power supplies.

Shimer, D.W.; Lange, A.C. [Lawrence Livermore National Lab., CA (United States); Bombay, J.N. [Kaiser Engineers, Oakland, CA (United States)

1994-06-23T23:59:59.000Z

95

Outline Introduction Literature Review Electric Power Supply Chains Empirical Examples Conclusions An Integrated Electric Power Supply Chain and Fuel Market  

E-Print Network (OSTI)

billion annual sales, 40% of domestic primary energy (Energy Information Administration (2000, 2005 An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England Zugang Liu and Anna Nagurney§ Isenberg School of Management University

Nagurney, Anna

96

Introduction Literature Review Integrated Electric Power Supply Chains Empirical Examples Conclusions An Integrated Electric Power Supply Chain and Fuel  

E-Print Network (OSTI)

primary energy (Energy Information Administration (2000, 2005)) Deregulation Wholesale market Bilateral Conclusions An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England Zugang Liu and Anna Nagurney§ Penn State University Hazleton § John F

Nagurney, Anna

97

Introduction Literature Review Integrated Electric Power Supply Chains Empirical Examples Conclusions An Integrated Electric Power Supply Chain and Fuel  

E-Print Network (OSTI)

of net assets, $220 billion annual sales, 40% of domestic primary energy (Energy Information Conclusions An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England Forthcoming in Naval Research Logistics Zugang Liu and Anna Nagurney

Nagurney, Anna

98

Introduction Literature Review Integrated Electric Power Supply Chains Empirical Examples Conclusions An Integrated Electric Power Supply Chain and Fuel  

E-Print Network (OSTI)

of net assets, $220 billion annual sales, 40% of domestic primary energy (Energy Information Conclusions An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England Zugang Liu and Anna Nagurney§ Isenberg School of Management University

Nagurney, Anna

99

Outline Introduction Literature Review Electric Power Supply Chains Empirical Examples Conclusions An Integrated Electric Power Supply Chain and Fuel  

E-Print Network (OSTI)

primary energy (Energy Information Administration (2000, 2005)) Deregulation Wholesale market Bilateral An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England Zugang Liu Isenberg School of Management University of Massachusetts at Amherst

Nagurney, Anna

100

An Interleaved Dual-Battery Power Supply for Battery-Operated Electronics  

E-Print Network (OSTI)

An Interleaved Dual-Battery Power Supply for Battery-Operated Electronics QingQing Wu,Wu, Qinru VoltageAnalysis of Optimal Supply Voltage Design of Interleaved DualDesign of Interleaved Dual--Battery PowerBattery Power SupplySupply ConclusionsConclusions #12;Batteries in Mobile/Portable ElectronicsBatteries

Pedram, Massoud

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Hefei Sunlight Power Supply Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Supply Co Ltd Supply Co Ltd Jump to: navigation, search Name Hefei Sunlight Power Supply Co Ltd Place Hefei, Anhui Province, China Zip 230088 Sector Solar, Wind energy Product Delicated to the design, installation of solar, wind or hybrid electricity generating systems for home and business use. Coordinates 31.86141°, 117.27562° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":31.86141,"lon":117.27562,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

102

Development of a photovoltaic power supply for wireless sensor networks.  

DOE Green Energy (OSTI)

This report examines the design process of a photovoltaic (solar) based power supply for wireless sensor networks. Such a system stores the energy produced by an array of photovoltaic cells in a secondary (rechargeable) battery that in turn provides power to the individual node of the sensor network. The goal of such a power supply is to enable a wireless sensor network to have an autonomous operation on the order of years. Ideally, such a system is as small as possible physically while transferring the maximum amount of available solar energy to the load (the node). Within this report, there is first an overview of current solar and battery technologies, including characteristics of different technologies and their impact on overall system design. Second is a general discussion of modeling, predicting, and analyzing the extended operation of a small photovoltaic power supply and setting design parameters. This is followed by results and conclusions from the testing of a few basic systems. Lastly, some advanced concepts that may be considered in order to optimize future systems will be discussed.

Harvey, Matthew R.; Kyker, Ronald D.

2005-06-01T23:59:59.000Z

103

SNAP 29 power supply system. Ninth quarterly progress report  

SciTech Connect

Progress during the period from Oct. through December 1968 in the development of the SNAP 29 battery, a radioisotope-fueled thermoelectric generator (RTG) system for spacecraft power supplies, is reported. Information is included on: fabrication and testing of RTG components; systems evaluation and integration; reliability analysis and prediction; reentry trajectory and heating rates for various burn-up element configurations; and system safety evaluation. (LCL)

1969-01-01T23:59:59.000Z

104

Hefei Sungrow Power Supply Co Ltd SPS | Open Energy Information  

Open Energy Info (EERE)

Sungrow Power Supply Co Ltd SPS Sungrow Power Supply Co Ltd SPS Jump to: navigation, search Name Hefei Sungrow Power Supply Co Ltd (SPS) Place Hefei, Anhui Province, China Zip 230088 Sector Wind energy Product Chinese inverter manufacturer specialized in PV Grid-connected inverter, wind turbine on grid inverter and PV charge controller. Coordinates 31.86141°, 117.27562° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":31.86141,"lon":117.27562,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

106

OSTI Pact with Internet Archive Ensures Uninterrupted Research Access |  

Office of Scientific and Technical Information (OSTI)

Pact with Internet Archive Ensures Uninterrupted Research Access Pact with Internet Archive Ensures Uninterrupted Research Access E-print Network One sure thing about the World Wide Web: like the weather, it will change. Given this dynamic nature of the Web and the importance of preservation of scientific information in a digital environment, OSTI recently partnered with Internet Archive to ensure uninterrupted access to more than 1 million online research papers from the E-print Network. The DOE E-print Network is the largest collection that a federal institution has undertaken in an on-going effort to preserve their own documents and history through Archive-It. "As a result of the pioneering partnership between the Internet Archive and OSTI, we are ensuring long-term, continuous access to the growing body of cutting-edge

107

275 C Downhole Switched-Mode Power Supply  

SciTech Connect

A vee-square (V2) control based controller IC is developed for a switch mode power supply capable of operating at extreme temperature/harsh environment conditions. A buck type regulator with silicon carbide power junction field effect transistors (JFET) as power devices is used to analyze the performance of controller. Special emphases are made on the analog sub-blocks--voltage reference, operational transconductance amplifier and comparator as individual building blocks. Transformer coupled gate drives and high temperature operable magnetic cores and capacitors are identified and tested for use in the design. Conventional ceramic chip packaging of ICs combined with lead carrier type mounting of passive filter components is introduced for hybrid packaging of the complete product. The developed SMPS is anticipated to support the operation of down-hole microcontrollers and other electronics devices that require low/medium power filtered dc inputs over an operating temperature of 275 C.

Chris Hutchens; Vijay Madhuravasal

2008-08-31T23:59:59.000Z

108

Understanding Buck-Boost Power Stages in Switch Mode Power Supplies  

E-Print Network (OSTI)

A switching power supply consists of the power stage and the control circuit. The power stage performs the basic power conversion from the input voltage to the output voltage and includes switches and the output filter. This report addresses the buck-boost power stage only and does not cover control circuits. Detailed steady-state and small-signal analysis of the buck-boost power stage operating in continuous and discontinuous mode is presented. Variations in the standard buck-boost power stage and a discussion of power stage

Everett Rogers; System Power

1999-01-01T23:59:59.000Z

109

DC switching regulated power supply for driving an inductive load  

DOE Patents (OSTI)

A power supply for driving an inductive load current from a dc power supply hrough a regulator circuit including a bridge arrangement of diodes and switching transistors controlled by a servo controller which regulates switching in response to the load current to maintain a selected load current. First and second opposite legs of the bridge are formed by first and second parallel-connected transistor arrays, respectively, while the third and fourth legs of the bridge are formed by appropriately connected first and second parallel connected diode arrays, respectively. The regulator may be operated in three "stages" or modes: (1) For current runup in the load, both first and second transistor switch arrays are turned "on" and current is supplied to the load through both transistor arrays. (2) When load current reaches the desired level, the first switch is turned "off", and load current "flywheels" through the second switch array and the fourth leg diode array connecting the second switch array in series with the load. Current is maintained by alternating between modes 1 and 2 at a suitable duty cycle and switching rate set by the controller. (3) Rapid current rundown is accomplished by turning both switch arrays "off", allowing load current to be dumped back into the source through the third and fourth diode arrays connecting the source in series opposition with the load to recover energy from the inductive load. The three operating states are controlled automatically by the controller.

Dyer, George R. (Norris, TN)

1986-01-01T23:59:59.000Z

110

A Fuel Cell Power Supply for Long Duration Balloon Flights Using Stored Cryogens  

E-Print Network (OSTI)

LBNL-40618 A FUEL CELL POWER SUPPLY FOR LONG DURATIONCA, (1966) LBNL-40618 A FUEL CELL POWER SUPPLY FOR LONG21 days. A hydrogen-oxygen fuel cell is an attractive option

Green, Michael A.; Manikowski, A.; Noland, G.; Golden, R.L.

1997-01-01T23:59:59.000Z

111

Klystron switching power supplies for the Internation Linear Collider  

Science Conference Proceedings (OSTI)

The International Linear Collider is a majestic High Energy Physics particle accelerator that will give physicists a new cosmic doorway to explore energy regimes beyond the reach of today's accelerators. ILC will complement the Large Hadron Collider (LHC), a proton-proton collider at the European Center for Nuclear Research (CERN) in Geneva, Switzerland, by producing electron-positron collisions at center of mass energy of about 500 GeV. In particular, the subject of this dissertation is the R&D for a solid state Marx Modulator and relative switching power supply for the International Linear Collider Main LINAC Radio Frequency stations.

Fraioli, Andrea; /Cassino U. /INFN, Pisa

2009-12-01T23:59:59.000Z

112

APPLICATIONS • DDR/DDR2 Memory Power Supplies  

E-Print Network (OSTI)

• Synchronous Buck Controller (VDDQ) The TPS51116 provides a complete power supply for – Wide-Input Voltage Range: 3.0-V to 28-V both DDR/SSTL-2 and DDR2/SSTL-18 memory sys-– D–CAP ™ Mode with 100-ns Load Step Re-tems. It integrates a synchronous buck controller with a 3-A sink/source tracking linear regulator and sponse buffered low noise reference. The TPS51116 offers – Current Mode Option Supports Ceramic the lowest total solution cost in systems where space

unknown authors

2004-01-01T23:59:59.000Z

113

High-Voltage Power Supply System for Laser Isotope Separation  

SciTech Connect

This report presents several concepts for Laser High-Voltage Power Supply (HVPS) Systems for a Laser Isotope Separation facility. Selection of equipments and their arrangement into operational systems is based on proven designs and on application concepts now being developed. This report has identified a number of alternative system arrangements and has provided preliminary cost estimates for each. The report includes a recommendation for follow-on studies that will further define the optimum Laser HVPS Systems. Brief descriptions are given of Modulator/Regulator circuit trade-offs, system control interfaces, and their impact on costs.

Ketaily, E.C.; Buckner, R.P.; Uhrik, R.L.

1979-06-26T23:59:59.000Z

114

THE POWER SUPPLY SYSTEM FOR THE ACCELERATING COLUMN OF THE 2 MEV ELECTRON COOLER FOR COSY  

E-Print Network (OSTI)

filter, and various power supplies for these elements. The cascade transformer is to provide a requiredTHE POWER SUPPLY SYSTEM FOR THE ACCELERATING COLUMN OF THE 2 MEV ELECTRON COOLER FOR COSY D a high-energy electron beam. The power supply for the accelerating column of the electron cooling system

Kozak, Victor R.

115

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 19, NO. 4, NOVEMBER 2004 1903 Analysis and Implementation of Model-Based Linear  

E-Print Network (OSTI)

and dynamic symmetrical components in energy processing systems. The procedure is based on the Kalman filter and experimental re- sults on model-based linear estimation of dynamic phasors and dy- namic symmetrical components a Kalman filter is used to detect problems in energy supply to an uninterruptible power supply (UPS

Stankoviæ, Aleksandar

116

Monitoring apparatus and method for battery power supply  

SciTech Connect

A monitoring apparatus and method are disclosed for monitoring and/or indicating energy that a battery power source has then remaining and/or can deliver for utilization purposes as, for example, to an electric vehicle. A battery mathematical model forms the basis for monitoring with a capacity prediction determined from measurement of the discharge current rate and stored battery parameters. The predicted capacity is used to provide a state-of-charge indication. Self-calibration over the life of the battery power supply is enacted through use of a feedback voltage based upon the difference between predicted and measured voltages to correct the battery mathematical model. Through use of a microprocessor with central information storage of temperature, current and voltage, system behavior is monitored, and system flexibility is enhanced.

Martin, Harry L. (Knoxville, TN); Goodson, Raymond E. (West Lafayette, IN)

1983-01-01T23:59:59.000Z

117

Reliability of Rechargeable Batteries in a Photovoltaic Power Supply System  

DOE Green Energy (OSTI)

We investigate the reliability If a rechargeable battery acting as the energy storage component in a photovoltaic power supply system. A model system was constructed for this that includes the solar resource, the photovoltaic power supp Iy system, the rechargeable battery and a load. The solar resource and the system load are modeled as SI ochastic processes. The photovoltaic system and the rechargeable battery are modeled deterministically, imd an artificial neural network is incorporated into the model of the rechargeable battery to simulate dartage that occurs during deep discharge cycles. The equations governing system behavior are solved simultaneously in the Monte Carlo framework and a fwst passage problem is solved to assess system reliability.

Barney, P.; Jungst, R.G., Ingersoll, D.; O'Gorman, C.; Paez, T.L.; Urbina, A.

1998-11-30T23:59:59.000Z

118

High voltage power supply with modular series resonant inverters  

DOE Patents (OSTI)

A relatively small and compact high voltage, high current power supply for a laser utilizes a plurality of modules containing series resonant half bridge inverters. A pair of reverse conducting thyristors are incorporated in each series resonant inverter module such that the series resonant inverter modules are sequentially activated in phases 360.degree./n apart, where n=number of modules for n>2. Selective activation of the modules allows precise output control reducing ripple and improving efficiency. Each series resonant half bridge inverter module includes a transformer which has a cooling manifold for actively circulating a coolant such as water, to cool the transformer core as well as selected circuit elements. Conductors connecting and forming various circuit components comprise hollow, electrically conductive tubes such as copper. Coolant circulates through the tubes to remove heat. The conductive tubes act as electrically conductive lines for connecting various components of the power supply. Where it is desired to make electrical isolation breaks, tubes comprised of insulating material such as nylon are used to provide insulation and continue the fluid circuit.

Dreifuerst, Gary R. (Livermore, CA); Merritt, Bernard T. (Livermore, CA)

1995-01-01T23:59:59.000Z

119

High voltage power supply with modular series resonant inverters  

DOE Patents (OSTI)

A relatively small and compact high voltage, high current power supply for a laser utilizes a plurality of modules containing series resonant half bridge inverters. A pair of reverse conducting thyristors are incorporated in each series resonant inverter module such that the series resonant inverter modules are sequentially activated in phases 360{degree}/n apart, where n=number of modules for n>2. Selective activation of the modules allows precise output control reducing ripple and improving efficiency. Each series resonant half bridge inverter module includes a transformer which has a cooling manifold for actively circulating a coolant such as water, to cool the transformer core as well as selected circuit elements. Conductors connecting and forming various circuit components comprise hollow, electrically conductive tubes such as copper. Coolant circulates through the tubes to remove heat. The conductive tubes act as electrically conductive lines for connecting various components of the power supply. Where it is desired to make electrical isolation breaks, tubes comprised of insulating material such as nylon are used to provide insulation and continue the fluid circuit. 11 figs.

Dreifuerst, G.R.; Merritt, B.T.

1995-07-18T23:59:59.000Z

120

Booster main magnet power supply, present operation and potential future upgrades  

SciTech Connect

The Brookhaven Booster Main Magnet Power Supply (MMPS) is a 24 pulse thyristor control supply, rated at 5500 Amps, +/-2000 Volts, or 3000 Amps, +/-6000 Volts. The power supply is fed directly from the power utility and the peak magnet power is 18 MWatts. This peak power is seen directly at the incoming ac line. This power supply has been in operation for the last 18 years. This paper will describe the present topology and operation of the power supply, the feedback control system and the different modes of operation of the power supply. Since the power supply has been in operation for the last 18 years, upgrading this power supply is essential. A new power supply topology has been studied where energy is stored in capacitor banks. DC to DC converters are used to convert the dc voltage stored in the capacitor banks to pulsed DC voltage into the magnet load. This enables the average incoming power from the ac line to be constant while the peak magnet power is pulsed to +/- 18 MWatts. Simulations and waveforms of this power supply will be presented.

Bajon, E.; Bannon, M.; Marneris, I.; Danowski, G.; Sandberg, J.; Savatteri, S.

2011-03-28T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Remote Area Power Supply (RAPS) load and resource profiles.  

SciTech Connect

In 1997, an international team interested in the development of Remote Area Power Supply (RAPS) systems for rural electrification projects around the world was organized by the International Lead Zinc Research Organization (ILZRO) with the support of Sandia National Laboratories (SNL). The team focused on defining load and resource profiles for RAPS systems. They identified single family homes, small communities, and villages as candidates for RAPS applications, and defined several different size/power requirements for each. Based on renewable energy and resource data, the team devised a ''strawman'' series of load profiles. A RAPS system typically consists of a renewable and/or conventional generator, power conversion equipment, and a battery. The purpose of this report is to present data and information on insolation levels and load requirements for ''typical'' homes, small communities, and larger villages around the world in order to facilitate the development of robust design practices for RAPS systems, and especially for the storage battery component. These systems could have significant impact on areas of the world that would otherwise not be served by conventional electrical grids.

Giles, Lauren (Energetics, Inc., Washington, DC); Skolnik, Edward G. (Energetics, Inc., Washington, DC); Marchionini, Brian (Energetics, Inc., Washington, DC); Fall, Ndeye K. (Energetics, Inc., Washington, DC)

2007-07-01T23:59:59.000Z

122

Remote Area Power Supply (RAPS) load and resource profiles.  

SciTech Connect

In 1997, an international team interested in the development of Remote Area Power Supply (RAPS) systems for rural electrification projects around the world was organized by the International Lead Zinc Research Organization (ILZRO) with the support of Sandia National Laboratories (SNL). The team focused on defining load and resource profiles for RAPS systems. They identified single family homes, small communities, and villages as candidates for RAPS applications, and defined several different size/power requirements for each. Based on renewable energy and resource data, the team devised a ''strawman'' series of load profiles. A RAPS system typically consists of a renewable and/or conventional generator, power conversion equipment, and a battery. The purpose of this report is to present data and information on insolation levels and load requirements for ''typical'' homes, small communities, and larger villages around the world in order to facilitate the development of robust design practices for RAPS systems, and especially for the storage battery component. These systems could have significant impact on areas of the world that would otherwise not be served by conventional electrical grids.

Giles, Lauren (Energetics, Inc., Washington, DC); Skolnik, Edward G. (Energetics, Inc., Washington, DC); Marchionini, Brian (Energetics, Inc., Washington, DC); Fall, Ndeye K. (Energetics, Inc., Washington, DC)

2007-07-01T23:59:59.000Z

123

Plant Engineering: Instrument Power Supply End-of-Expected-Life Guidance  

Science Conference Proceedings (OSTI)

This report gives nuclear power plant personnel a technical basis for the refurbishment and/or replacement of instrument power supplies prior to their end-of-life. Recommendations are presented that should be considered in the development of site-specific instrument power supply life cycle management plans. Nuclear plant instrument power supplies have been identified for many years as being a high contributor to plant forced shutdown and capacity derate. This report provides empirical data that can assis...

2011-05-31T23:59:59.000Z

124

Gallium-Nitride Transistors for High-Efficiency Industrial Power Supplies, Phase 1: State of Semiconductor Development and Industrial Power Supply Market  

Science Conference Proceedings (OSTI)

This white paper describes recent advancements in the development of Gallium-Nitride (GaN) transistors for power conversion applications. This wide bandgap semiconductor has the potential to reduce losses and improve performance of power converters. The industrial power supply market is described and the application of GaN to power conversion in this segment is introduced for future work.

2013-12-23T23:59:59.000Z

125

CapLibrate: Self-Calibration of an Energy Harvesting Power Supply with Supercapacitors  

E-Print Network (OSTI)

CapLibrate: Self-Calibration of an Energy Harvesting Power Supply with Supercapacitors Christian and assess models for a supercapacitor- based harvesting supply. The parameters of the models are discussed

Turau, Volker

126

Low cost power and supply noise estimation and control in scan testing of vlsi circuits  

Science Conference Proceedings (OSTI)

Test power is an important issue in deep submicron semiconductor testing. Too much power supply noise and too much power dissipation can result in excessive temperature rise, both leading to overkill during delay test. Scan-based test has ...

Zhongwei Jiang / Duncan Walker

2010-01-01T23:59:59.000Z

127

Abstract--The issue of controlled and reliable integration of distributed energy resources into microgrids and large power  

E-Print Network (OSTI)

into microgrids and large power grids has recently gained considerable attention. The microgrid concept, which capabilities. In order to provide uninterruptible power supply to the loads, microgrids are expected to operate. The problem of optimal management of the resources in a microgrid is being widely investigated and recent

Cañizares, Claudio A.

128

POWER SUPPLIES FOR THE BENDING MAGNETS OF THE BEP AND VEPP-2000 STORAGE RING  

E-Print Network (OSTI)

transformer (2) are located closely to the BEP ring. The power part of each thyristor module (Fig.2) consistsPOWER SUPPLIES FOR THE BENDING MAGNETS OF THE BEP AND VEPP-2000 STORAGE RING S.S. Vasichev, V of the collider. The beam energy change lead to the necessity to develop new power supplies for the main field

Kozak, Victor R.

129

THE SYSTEM OF POWER SUPPLIES, CONTROL AND MODULATION OF ELECTRON GUN FOR FREE ELECTRON LASER  

E-Print Network (OSTI)

. The output of power inverter is connected to input coil of isolated power transformer (300kV). Timer Electric power for part 2 goes from power inverter through isolated power transformer (isolation voltageTHE SYSTEM OF POWER SUPPLIES, CONTROL AND MODULATION OF ELECTRON GUN FOR FREE ELECTRON LASER E

Kozak, Victor R.

130

Benthic Microbial Fuel Cell Persistent power supply for in-water ...  

Benthic Microbial Fuel Cell Persistent power supply for in-water sensors ... and high-density sensor arrays where the cost of battery replacement is high.

131

Sustaining neutral beam power supply system for the Mirror Fusion Test Facility  

SciTech Connect

In late August 1978, a fixed price procurement contract for $25,000,000 was awarded to Aydin Energy Division, Palo Alto, California, for the design, manufacture, installation and acceptance testing of the Lawrence Livermore National Laboratory Mirror Fusion Test Facility (MFTF) Sustaining Neutral Beam Power Supply System (SNBPSS). This system of 24 power supply sets will provide the conditioned power for the 24 neutral beam source modules. Each set will provide the accel potential the arc power, the filament power, and the suppressor power for its associated neutral beam source module. The design and development of the SNBPSS has progressed through the final design phase and is now in production. Testing of the major sub-assembly power supply is proceeding at Aydin and the final acceptance testing of the first two power supplies at LLNL is expected to be completed this year.

Eckard, R.D.; Wilson, J.H.; Van Ness, H.W.

1980-01-01T23:59:59.000Z

132

EPRIswitch and Other State-of-the-Art Power Supplies and Controllers for ESPs  

Science Conference Proceedings (OSTI)

Manufacturers of new, high-frequency power supplies for electrostatic precipitators (ESPs) continue to push the development of this technology steadily forward. EPRI continues to support this process through demonstration projects and the development of more flexible advanced power supplies. This report summarizes the latest results from these efforts.

2007-03-28T23:59:59.000Z

133

Poloidal Field Power Supply Systems for the HT-7U Steady-State Superconducting Tokamak  

Science Conference Proceedings (OSTI)

The paper gives a description of the poloidal field power supplies and the control system of the HT-7U superconducting tokamak required to energize the magnetic field coils for plasma excitation and confinement. An original configuration of alternating-current/direct-current (dc) converter, thyristor dc circuit breaker, and power supply control system are introduced in detail.

Fu, P.; Liu, Z.Z.; Xu, J.Z.; Gao, G.; Wen, J.L.; Cao, Y.; Song, Z.Q.; Tang, L.J.; Wang, L.S.; Liang, X.Y. [Institute of Plasma Physics (China)

2002-07-15T23:59:59.000Z

134

USING WEIGHTED SUM METHOD FOR THE CHOICE OF THE NIGHT VISION GOGGLES BATTERY POWER SUPPLY  

E-Print Network (OSTI)

USING WEIGHTED SUM METHOD FOR THE CHOICE OF THE NIGHT VISION GOGGLES BATTERY POWER SUPPLY Daniela into account device working range, weight and price and also electrical battery power supply lifetime, temperature working range and its mechanics. The multicriteria optimization choice of the electrical battery

Borissova, Daniela

135

HypoEnergy: Hybrid supercapacitor-battery power-supply optimization for Energy efficiency  

E-Print Network (OSTI)

HypoEnergy: Hybrid supercapacitor-battery power-supply optimization for Energy efficiency Azalia the hybrid battery-supercapacitor power supply life- time. HypoEnergy combines high energy density of recharge cycles of supercapacitors. The lifetime optimizations consider nonlinear battery characteristics

136

TurboCap: A Batteryless, Supercapacitor-based Power Supply for Mini-FDPM  

E-Print Network (OSTI)

TurboCap: A Batteryless, Supercapacitor-based Power Supply for Mini-FDPM Chulsung Park1 , KeunsikCap, a batteryless, supercapacitor-based power supply subsystem for a handheld, laser-based breast cancer detector on the selection of supercapacitor topology for conversion efficiency and for form- factor minimization

Shinozuka, Masanobu

137

An event-driven simulation methodology for integrated switching power supplies in SystemVerilog  

Science Conference Proceedings (OSTI)

Emerging power-supply-on-chip applications such as on-chip DC-DC conversion, energy harvesting, and LED drivers use switching regulator ICs integrated with digital controllers. Although the resulting mixed-signal systems call for efficient system-level ... Keywords: behavioral modeling, event-driven simulation, switching-mode power supplies, systemverilog

Ji Eun Jang, Myeongjae Park, Jaeha Kim

2013-05-01T23:59:59.000Z

138

Technology Assessment and Application Guide for Active Power's CoolAir DC  

Science Conference Proceedings (OSTI)

This report describes and documents the construction and performance of a novel battery free backup power product, CoolAir (DC) based upon TACAS (Thermal Compressed Air Storage) technology and manufactured by Active Power of Austin, Texas. Comprised of compressed air tanks, thermal storage unit, high-speed air turbine, flywheel, and power electronics, the CoolAir DC is designed to deliver DC power to devices such as an uninterruptible power supply or adjustable speed drive while producing cool air during...

2005-11-15T23:59:59.000Z

139

Form EIA-411, "Coordinated Bulk Power Supply Program Report,...  

Open Energy Info (EERE)

the electricity supply, both capacity and energy, that is needed to serve current demand and for future growth.

The reported data can be used to...

140

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

Note: This page contains sample records for the topic "uninterruptible power supply" 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

A preliminary investigation of the Topaz II reactor as a lunar surface power supply  

DOE Green Energy (OSTI)

Reactor power supplies offer many attractive characteristics for lunar surface applications. The Topaz II reactor resulted from an extensive development program in the former Soviet Union. Flight quality reactor units remain from this program and are currently under evaluation in the United States. This paper examines the potential for applying the Topaz II, originally developed to provide spacecraft power, as a lunar surface power supply.

Polansky, G.F. [Sandia National Labs., Albuquerque, NM (United States); Houts, M.G. [Los Alamos National Lab., NM (United States)

1995-12-31T23:59:59.000Z

142

HIGH-POWER PRECISION CURRENT SUPPLY IST2-1000M FOR ELEMENTS OF MAGNETIC SYSTEMS OF ACCELERATORS AND  

E-Print Network (OSTI)

BF), a detached supply transformer and power switch. Power box PB comprises the following: - a threeHIGH-POWER PRECISION CURRENT SUPPLY IST2-1000M FOR ELEMENTS OF MAGNETIC SYSTEMS OF ACCELERATORS. These supplies are intended to power magnetic systems of accelerators, requiring high stability and low ripples

Kozak, Victor R.

143

Form EIA-411, "Coordinated Bulk Power Supply Program Report," | OpenEI  

Open Energy Info (EERE)

411, "Coordinated Bulk Power Supply Program Report," 411, "Coordinated Bulk Power Supply Program Report," Dataset Summary Description The Form EIA-411, "Coordinated Bulk Power Supply Program Report," collects information from the Nation's power system planners about the electricity supply, both capacity and energy, that is needed to serve current demand and for future growth. The reported data can be used to examine such issues as: the reliability of the U.S. electricity system; projections which assess future demand growth and plans for constructing new generating and transmission facilities; and consequences of unavailable or constrained capacity on usage of the existing generation base. Reliability of the electric power system covers three areas: the security of the electrical systems; the usage of

144

Power Charging and Supply System for Electric Vehicles ...  

Functions as a mobile electrical power generator for emergency and other uses; Applications and Industries. Electric vehicles; Hybrid electric ...

145

Analysis of using fuel cell technology for autonomous underwater vehicle power supply  

Science Conference Proceedings (OSTI)

Nowadays underwater robotics aims at semi or whole autonomous underwater vehicles. Autonomy of underwater robots depends on their control systems usually based on artificial intelligence methods and capacity of supply sources mounted on their boards. ... Keywords: fuel cell, underwater vehicle power supply

Grzegorz Grzeczka; Piotr Szymak

2009-05-01T23:59:59.000Z

146

Study on the Harmonics of Photovoltaic Generation SPWM Inverting Power Supplies  

Science Conference Proceedings (OSTI)

Harmonics are the main polluting source of affecting the power energy quality. In this paper, the causes that SPWM inverter power supply produces the harmonics are analyzed firstly and then a new three-phase ?-band-pass filter is designed to improve ... Keywords: harmonious, solar energy photovoltaic power, inverter, current ripples component

Jianqu Zhu; Feng Wang; Taiqiang Cao

2012-04-01T23:59:59.000Z

147

Assessment of the Economic Potential of Microgrids for Reactive Power Supply  

E-Print Network (OSTI)

Assessment of the Economic Potential of Microgrids for Reactive Power Supply Jan von Appen1 , Chris. This paper outlines the economic potential of DERs coordinated in a microgrid to provide reactive power possibilities of creating an incentive for microgrids to provide reactive power. Index Terms ­ microgrids

148

The ISR Argus 500 system - control of the beam transfer power supplies by the Argus 500 computer operators manual  

E-Print Network (OSTI)

The ISR Argus 500 system - control of the beam transfer power supplies by the Argus 500 computer operators manual

Kemp, D

1970-01-01T23:59:59.000Z

149

Strategic stockpiling of power system supplies for disaster recovery  

SciTech Connect

This paper studies the Power System Stochastic Storage Problem (PSSSP), a novel application in power restoration which consists of deciding how to store power system components throughout a populated area to maximize the amount of power served after disaster restoration. The paper proposes an exact mixed-integer formulation for the linearized DC power flow model and a general column-generation approach. Both formulations were evaluated experimentally on benchmarks using the electrical power infrastructure of the United States and disaster scenarios generated by state-of-the-art hurricane simulation tools similar to those used by the National Hurricane Center. The results show that the column-generation algorithm produces near-optimal solutions quickly and produces orders of magnitude speedups over the exact formulation for large benchmarks. Moreover, both the exact and the column-generation formulations produce significant improvements over greedy approach and hence should yield significant benefits in practice.

Bent, Russell W [Los Alamos National Laboratory; Coffrein, Carleton [Los Alamos National Laboratory; Van Hentenryck, Pascal [BROWN UNIV

2010-11-23T23:59:59.000Z

150

Vision for a Holistic Power Supply and Delivery Chain  

Science Conference Proceedings (OSTI)

The dramatic changes that are likely to occur in the electric power industry in the next 10 years are inextricably linked to the activities of power system operators and planners. This report describes the necessary enhancements to the power delivery infrastructure as well as the tools and methods personnel will need to improve economic efficiency, assure adequate reliability and acceptable environmental impacts, increase system robustness and flexibility to mitigate extreme events, protect and leverage ...

2009-02-06T23:59:59.000Z

151

Power Supply Changes for NSTX Resistive Wall Mode Coils  

SciTech Connect

The National Spherical Torus Experiment (NSTX) has been designed and installed in the existing facilities at Princeton Plasma Physics Laboratory (PPPL). Most of the hardware, plant facilities, auxiliary sub-systems, and power systems originally used for the Tokamak Fusion Test Reactor (TFTR) have been used with suitable modifications to reflect NSTX needs. Prior to 2004, the NSTX power system was feeding twelve (12) circuits in the machine. In 2004 the Resistive Wall Mode (RWM) Coils were installed on the machine to correct error fields. There are six of these coils installed around the machine in the mid-plane. Since these coils need fast and accurate controls, a Switching Power Amplifier (SPA) with three sub-units was procured, installed and commissioned along with other power loop components. Two RWM Coils were connected in series and fed from one SPA sub-unit. After the initial RWM campaign, operational requirements evolved such that each of the RWM coils now requires separate power and control. Hence a second SPA with three sub-units has been procured and installed. The second unit is of improved design and has the controls and power components completely isolated. The existing thyristor rectifier is used as DC Link to both of the Switching Power Amplifiers. The controls for the RWM are integrated into the overall computer control of the DC Power systems for NSTX. This paper describes the design changes in the RWM Power system for NSTX.

Ramakrishnan, S S.

2013-06-28T23:59:59.000Z

152

Nuclear energy is an important source of power, supplying 20  

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

countries around the world are implementing nuclear power as a carbon-free alternative to fossil fuels. We can maximize the climate and energy security benefits provided by...

153

HP Ex Parte Memo on Proposed Rulemaking for Battery Chargers and External Power Supplies  

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

Hewlett-Packard  Company (HP) appreciates the opportunity to comment on the new DOE rulemaking for Battery Chargers and External Power Supplies. Thank you for taking the time to speak with us.  HP...

154

Supplying Baseload Power and Reducing Transmission Requirements by Interconnecting Wind Farms  

Science Conference Proceedings (OSTI)

Wind is the world’s fastest growing electric energy source. Because it is intermittent, though, wind is not used to supply baseload electric power today. Interconnecting wind farms through the transmission grid is a simple and effective way of ...

Cristina L. Archer; Mark Z. Jacobson

2007-11-01T23:59:59.000Z

155

Power supply expansion and the nuclear option in Poland  

SciTech Connect

Poland is in the process of liberalizing and modernizing its electric power system. Given its heavy reliance on coal and a consequent history of often severe environmental externalities associated with power production, the nature of capacity expansion in Poland has important environmental and social implications. To better understand capacity expansion in Poland, we constructed a data set of the Polish power sector for use with the Elfin capacity expansion planning model. Using Elfin, we derived four scenarios and several sensitivities for new generating capacity construction. These scenarios simulate choices among several generic generating technologies made to achieve the lowest overall net present cost of operating the power system through 2015. We find that natural gas is a highly desirable fuel for future power generation in Poland, but primarily as a peaking resource. As the current system is inflexible and peaking capacity appears to be the most pressing need, this result is not surprising. However, when nuclear power is included as a generation option, natural gas is less desirable than the Polish Power Grid Company (PPGCo) has suggested, and, despite the PPGCo`s claims to the contrary, nuclear power cannot be ruled out in Poland on economic grounds alone. In the unconstrained Elfin scenarios, using PPGCo assumptions, nuclear power is attractive, especially after 2010. The attractiveness of nuclear generation proves sensitive to certain input variables, however, notably fixed operating and maintenance cost, and possible carbon taxes. Moreover, we find that the effectiveness of conservation efforts designed to reduce airborne emissions is limited under scenarios in which nuclear generation is adopted. 23 refs., 11 figs., 5 tabs.

Marnay, C.; Pickle, S.

1997-06-01T23:59:59.000Z

156

A real time status monitor for transistor bank driver power limit resistor in boost injection kicker power supply  

SciTech Connect

For years suffering of Booster Injection Kicker transistor bank driver regulator troubleshooting, a new real time monitor system has been developed. A simple and floating circuit has been designed and tested. This circuit monitor system can monitor the driver regulator power limit resistor status in real time and warn machine operator if the power limit resistor changes values. This paper will mainly introduce the power supply and the new designed monitoring system. This real time resistor monitor circuit shows a useful method to monitor some critical parts in the booster pulse power supply. After two years accelerator operation, it shows that this monitor works well. Previously, we spent a lot of time in booster machine trouble shooting. We will reinstall all 4 PCB into Euro Card Standard Chassis when the power supply system will be updated.

Mi, J.; Tan, Y.; Zhang, W.

2011-03-28T23:59:59.000Z

157

The 100,000 amp dc power supply for a staged hadron collider superferric magnet  

SciTech Connect

A 1.5 volt 100,000 amp DC switcher power supply was developed for testing a superferric magnet string at FNAL. This supply was used during testing as both the ramping supply and holding supply powering a single magnet load with a total load resistance of 0.7{micro} Ohms. The supply consists of ten paralleled switcher cells, powered by a 400 volt/600 Amp DC power supply. Each cell consists of an IGBT H-bridge driving a step-down transformer at a switching frequency of 2 kHz. The transformer has an effective turns ratio of 224:1. The secondary consists of 32 parallel single-turn full wave rectifier windings. The rectification is done with 64 Shottky diodes. Each cell is rated at 1.5 volts/10,000 amps. During this test each cell was operated as a constant power source without load current or field feedback. This paper will describe the design of the switcher cell and control system used during testing. We will also describe the next level of improvements to the current feedback system to improve the ramp control.

Hays, Steven L.; Claypool, Bradley; Foster, G.William; /Fermilab

2005-09-01T23:59:59.000Z

158

Multimegawatt space nuclear power supply, Phase 1 Final report  

Science Conference Proceedings (OSTI)

This Specification establishes the performance, design, development, and test requirements for the Boeing Multimegawatt Space Nuclear Power System (MSNPS). The Boeing Multimegawatt Space Power System is part of the DOE/SDIO Multimegawatt Space Nuclear Power Program. The purpose of this program is to provide a space-based nuclear power system to meet the needs of SDIO missions. The Boeing MSNPS is a category 1 concept which is capable of delivering 10's of MW(e) for 100's of seconds with effluent permitted. A design goal is for the system to have growth or downscale capability for other power system concepts. The growth objective is to meet the category 3 capability of 100's of MW(e) for 100's of seconds, also with effluent permitted. The purpose of this preliminary document is to guide the conceptual design effort throughout the Phase 1 study effort. This document will be updated through out the study. It will thus result in a record of the development of the design effort.

Not Available

1989-02-17T23:59:59.000Z

159

A unique power supply for the PEP II klystron at SLAC  

SciTech Connect

Each of the eight 1.2 MW RF klystrons for the PEP-II storage rings require a 2.5 MVA DC power supply of 83 Kv at 23 amps. The design for the supply was base on three factors, low cost, small size to fit existing substation pads, and good protection against damage to the klystron including klystron gun arcs. The supply uses a 12 pulse 12.5 KV primary thyristor star point controller with primary filter inductor to provide rapid voltage control, good voltage regulation, and fast turn off during klystron tube faults. The supply also uses a unique secondary rectifier, filter capacitor configuration to minimize the energy available under a klystron fault. The voltage control is from 0--90 KV with a regulation of < 0.1% and voltage ripple of < 1% P-P, (< 0.2% RMS) above 60 KV. The supply utilizes a thyristor crowbar, which under a klystron tube arc limits the energy in the klystron arc to < 5 joules. If the thyristor crowbar is disabled the energy supplied is < 40 joules into the arc. The size of the supply was reduced small enough to fit the existing PEP transformer yard pads. The cost of the power supply was < $140 per KVA.

Cassel, R.; Nguyen, M.N.

1997-07-01T23:59:59.000Z

160

Cost of Providing Ancillary Services from Power Plants: Reactive Supply and Voltage Control  

Science Conference Proceedings (OSTI)

This report provides a methodology for determining the variable costs of generating and supplying reactive power to a transmission system, via the generator step-up transformer, for system voltage control. The report examines the costs of additional energy losses, maintenance, repair, and plant aging associated with the generation of reactive power. TR-107270-V3SI contains System of International units.

1997-09-02T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

On-chip hybrid power supply system for wireless sensor nodes  

Science Conference Proceedings (OSTI)

With the miniaturization of electronic devices, small size but high capacity power supply system appears to be more and more important. A hybrid power source, which consists of a fuel cell (FC) and a rechargeable battery, has the advantages of long lifetime ...

Wulong Liu; Yu Wang; Wei Liu; Yuchun Ma; Yuan Xie; Huazhong Yang

2011-01-01T23:59:59.000Z

162

Proposal for the award of a contract, without competitive tendering, for the supply of radiation-tolerant power supplies for the LHC quench protection system  

E-Print Network (OSTI)

This document concerns the award of a contract, without competitive tendering, for the supply of 1780 radiation-tolerant power supplies for the LHC quench protection system. The Finance Committee is invited to agree to the negotiation of a contract, without competitive tendering, for the supply of 1780 radiation-tolerant power supplies for the LHC quench protection system with SYKO (DE) for a total amount of 455 680 euros (697 650 Swiss francs). The total amount will be financed by the Department of Atomic Energy (DAE) of the Government of India. The amount in Swiss francs has been calculated using the present rate of exchange.

2004-01-01T23:59:59.000Z

163

Forest biomass supply logistics for a power plant using the discrete-event simulation approach  

Science Conference Proceedings (OSTI)

This study investigates the logistics of supplying forest biomass to a potential power plant. Due to the complexities in such a supply logistics system, a simulation model based on the framework of Integrated Biomass Supply Analysis and Logistics (IBSAL) is developed in this study to evaluate the cost of delivered forest biomass, the equilibrium moisture content, and carbon emissions from the logistics operations. The model is applied to a proposed case of 300 MW power plant in Quesnel, BC, Canada. The results show that the biomass demand of the power plant would not be met every year. The weighted average cost of delivered biomass to the gate of the power plant is about C$ 90 per dry tonne. Estimates of equilibrium moisture content of delivered biomass and CO2 emissions resulted from the processes are also provided.

Mobini, Mahdi [University of British Columbia, Vancouver; Sowlati, T. [University of British Columbia, Vancouver; Sokhansanj, Shahabaddine [ORNL

2011-04-01T23:59:59.000Z

164

Wind power manufacturing and supply chain summit USA.  

Science Conference Proceedings (OSTI)

The area of wind turbine component manufacturing represents a business opportunity in the wind energy industry. Modern wind turbines can provide large amounts of electricity, cleanly and reliably, at prices competitive with any other new electricity source. Over the next twenty years, the US market for wind power is expected to continue to grow, as is the domestic content of installed turbines, driving demand for American-made components. Between 2005 and 2009, components manufactured domestically grew eight-fold to reach 50 percent of the value of new wind turbines installed in the U.S. in 2009. While that growth is impressive, the industry expects domestic content to continue to grow, creating new opportunities for suppliers. In addition, ever-growing wind power markets around the world provide opportunities for new export markets.

Hill, Roger Ray

2010-12-01T23:59:59.000Z

165

An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England  

E-Print Network (OSTI)

with fuel supply markets that captures both the economic network transactions in energy supply chains markets to quantify the interactions in electric power/energy supply chains and their effects on flows% of domestic primary energy [17, 18]. Currently, the electric power industry in the US is undergoing

Nagurney, Anna

166

A Case Study of Supply Chain Sustainability in the Electric Power Industry  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute's (EPRI's) Energy Sustainability Interest Group, consisting of approximately 30 electric power companies, is working to identify best practices in order to improve sustainability performance in the electric power industry. One component of a comprehensive approach toward meeting this objective is to work with the industry’s non-fuel supply chain to improve the environmental performance of producing and delivering their products and services. Many corporations and par...

2012-05-14T23:59:59.000Z

167

A new VME based high voltage power supply for large experiments  

SciTech Connect

A new VME based high voltage power supply has been developed for the D{O} experiment at Fermilab. There are three types of supplies delivering up to {plus_minus}5.6 kV at 1.0 mA or +2.0 kV at 3.0 mA with a set accuracy of 1.5 V and extremely low voltage ripples. Complete computer control has allowed many special features to be developed for the supply, including user-defined control land monitor groups, variable ramp rates, and advanced histogram and graphic functions. 3 refs.

Ahn, S.C.; Angstadt, R.D.; Droege, T.F.; Johnson, M.E.; MacKinnon, B.A.; McNulty, S.E.; Shea, M.F.; Thompson, R.N.; Watson, M.M. [Fermi National Accelerator Lab., Batavia, IL (United States); Franzini, P. [Columbia Univ., New York, NY (United States); Jones, A.A. [Superconducting Super Collider Lab., Dallas, TX (United States); Lopez, M.L. [La Plata Univ. Nacional (Argentina); Wimpenny, S.J.; Yang, M.J. [California Univ., Riverside, CA (United States)

1991-11-01T23:59:59.000Z

168

A new VME based high voltage power supply for large experiments  

Science Conference Proceedings (OSTI)

A new VME based high voltage power supply has been developed for the D{O} experiment at Fermilab. There are three types of supplies delivering up to {plus minus}5.6 kV at 1.0 mA or +2.0 kV at 3.0 mA with a set accuracy of 1.5 V and extremely low voltage ripples. Complete computer control has allowed many special features to be developed for the supply, including user-defined control land monitor groups, variable ramp rates, and advanced histogram and graphic functions. 3 refs.

Ahn, S.C.; Angstadt, R.D.; Droege, T.F.; Johnson, M.E.; MacKinnon, B.A.; McNulty, S.E.; Shea, M.F.; Thompson, R.N.; Watson, M.M. (Fermi National Accelerator Lab., Batavia, IL (United States)); Franzini, P. (Columbia Univ., New York, NY (United States)); Jones, A.A. (Superconducting Super Collider Lab., Dallas, TX (United States)); Lopez, M.L. (La Plata Univ. Nacional (Argentina)); Wimpenny, S.J.; Yang, M.J

1991-11-01T23:59:59.000Z

169

Energy conversion apparatus for supplying variable voltage direct current power to an electrically propelled vehicle  

SciTech Connect

A synchronous machine, operable as both a motor and a generator, is mounted on an electrically powered vehicle, such as a mine shuttle car, and includes a plurality of conductors having connections that are detachably engagable with receptacles of a stationary power bank. Engagement of the conductors with the receptacles supplies variable voltage alternating current power to the machine. The machine is drivingly connected to a flywheel on the vehicle and, operating as a motor, energizes the flywheel to store a preselected amount of mechanical energy. The electrical connection between the vehicle and the power bank is opened after the flywheel has been sufficiently charged. The stored energy in the flywheel is then available to drive the machine as a generator and produce high frequency, three phase, alternating current power. The generated power is transmitted to a full wave silicon controlled rectifier that converts the alternating current power to direct current for powering the traction motors of the vehicle. A variable voltage controller is connected to the rectifier and actuates the rectifier to supply direct current at a selected voltage level. The controller is responsive to an operator foot pedal. By manually depressing the foot pedal to a selected position, the voltage level of the rectified current is controlled. Thus, the speed of the traction motors is adjustable topropel the vehicle at a speed within a given range. After a portion of the energy stored by the flywheel is consumed, the vehicle is returned to the power bank to replenish the energy supply.

Jamison, W.B.; Burr, J.F.

1976-09-07T23:59:59.000Z

170

Energy Storage Application Brief -- Case History for Large Flywheel System: Piller -- Flywheel Energy Storage Systems for Premium Power  

Science Conference Proceedings (OSTI)

Piller of Middleton, New York produces premium power systems for power quality and uninterruptible power supply (UPS) applications. An entire family of products is commercially available in a variety of system and circuit configurations for industrial use. These products are beneficial because they are highly reliable and protect from voltage sags. The energy storage components of these systems uses mature, conventional flywheel technology. This technology review describes the various applications of the...

1999-11-23T23:59:59.000Z

171

Pact to Ensure Uninterrupted Research Access | OSTI, US Dept of Energy,  

Office of Scientific and Technical Information (OSTI)

Pact to Ensure Uninterrupted Research Access Pact to Ensure Uninterrupted Research Access NEWS MEDIA CONTACT: Cathey Daniels, (865) 576-9539 FOR IMMEDIATE RELEASE June 28, 2007 Pact to Ensure Uninterrupted Research Access Oak Ridge, TN -One sure thing about the World Wide Web: Like the weather, it will change. Given this dynamic nature of the Web and the importance of preservation of scientific information in a digital environment, the U.S. Department of Energy (DOE) Office of Scientific and Technical Information (OSTI) recently partnered with Internet Archive to ensure uninterrupted access to more than 1 million online research papers from the E-print Network. This was achieved through the Internet Archive's Web archiving service, Archive-It, a Web-based application that enables partners to harvest, manage, search, and preserve collections of archived Web pages and

172

Report on Performance of Prototype Dynatronix Power Supplies Developed Under a Phase I DOE SBIR  

SciTech Connect

The purpose of this study is to evaluate the prototype power supplies fabricated by Dynatronix, Inc. This project supports the advancement of electroforming capabilities to produce ultra-high purity copper. Ultra-high purity copper is an essential material used for a range of current and future fundamental nuclear physics programs such as the MAJORANA DEMONSTRATOR. The Mach 30 power supplies are a new design built to the specifications from the requirements of Pacific Northwest National Laboratory (PNNL) with regard to timing, voltage, current output, and the required tolerances. The parameters used in these tests were developed empirically over a number of years based on a combination of thermodynamic and kinetics of the electroplating process. The power supplies were operated in a typical cleanroom environment for the production electroforming at PNNL. The units that were received by PNNL in July, 2010 have performed satisfactorily and have demonstrated short term durability.

Hoppe, Eric W.; Merriman, Jason H.

2011-03-01T23:59:59.000Z

173

Design of a Control Strategy for a Fuel Cell/Battery Hybrid Power Supply  

E-Print Network (OSTI)

The purpose of this thesis is to design hardware and a control strategy for a fuel cell/battery hybrid power supply. Modern fuel cell/battery hybrid power supplies can have 2 DC/DC converters: one converter for the battery and one for the fuel cell. The hardware for the power supply proposed in this thesis consists of a single DC/DC buck converter at the output terminals of the fuel cell. The battery does not have a DC/DC converter, and it is therefore passive in the system. The use of one single converter is attractive, because it reduces the cost of this power supply. This thesis proposes a method of controlling the fuel cell's DC/DC buck converter to act as a current source instead of a voltage source. This thesis will explain why using the fuel cell's buck converter to act as a current source is most appropriate. The proposed design techniques for the buck converter are also based on stiff systems theory. Combining a fuel cell and a battery in one power supply allows exploitation of the advantages of both devices and undermines their disadvantages. The fuel cell has a slow dynamic response time, and the battery has a fast dynamic response time to fluctuations in a load. A fuel cell has high energy density, and a battery has high power density. And the performance of the hybrid power supply exploits these advantages of the fuel cell and the battery. The controller designed in this thesis allows the fuel cell to operate in its most efficient region: even under dynamic load conditions. The passive battery inherits all load dynamic behavior, and it is therefore used for peaking power delivery, while the fuel cell delivers base or average power. Simulations will be provided using MATLAB/Simulink based models. And the results conclude that one can successfully control a hybrid fuel cell/battery power supply that decouples fluctuations in a load from the fuel cell with extremely limited hardware. The results also show that one can successfully control the fuel cell to operate in its most efficient region.

Smith, Richard C.

2009-08-01T23:59:59.000Z

174

Kickers and power supplies for the Fermilab Tevatron I antiproton source  

SciTech Connect

The Fermilab Antiproton Source Accumulator and Debuncher rings require 5 kickers in total. These range in design from conventional ferrite delay line type magnets, with ceramic beam tubes to mechanically complex shuttered kickers situated entirely in the Accumulator Ring's 10/sup -10/ torr vacuum. Power supplies are thyratron switched pulse forming networks that produce microsecond width pulses of several kiloamps with less than 30 nanoseconds rise and fall times. Kicker and power supply design requirements for field strength, vacuum, rise and fall time, timing and magnetic shielding of the stacked beam in the accumulator by the eddy current shutter will be discussed. 8 refs., 3 figs., 2 tabs.

Castellano, T.; Bartoszek, L.; Tilles, E.; Petter, J.; McCarthy, J.

1985-05-01T23:59:59.000Z

175

Lawrence Berkeley laboratory neutral-beam engineering test facility power-supply system  

SciTech Connect

The Lawrence Berkeley Laboratory is upgrading the neutral beam source test facility (NBSTF) into a neutral beam engineering test facility (NBETF) with increased capabilities for the development of neutral beam systems. The NBETF will have an accel power supply capable of 170 kV, 70 A, 30 sec pulse length, 10% duty cycle; and the auxiliary power supplies required for the sources. This paper describes the major components, their ratings and capabilities, and the flexibility designed to accomodate the needs of source development.

Lutz, I.C.; Arthur, C.A.; deVries, G.J.; Owren, H.M.

1981-10-01T23:59:59.000Z

176

Transistor-based filter for inhibiting load noise from entering a power supply  

DOE Patents (OSTI)

A transistor-based filter for inhibiting load noise from entering a power supply is disclosed. The filter includes a first transistor having an emitter coupled to a power supply, a collector coupled to a load, and a base. The filter also includes a first capacitor coupled between the base of the first transistor and a ground terminal. The filter further includes an impedance coupled between the base and a node between the collector and the load, or a second transistor and second capacitor. The impedance can be a resistor or an inductor.

Taubman, Matthew S

2013-07-02T23:59:59.000Z

177

Probabilistic Analysis of Rechargeable Batteries in a Photovoltaic Power Supply System  

DOE Green Energy (OSTI)

We developed a model for the probabilistic behavior of a rechargeable battery acting as the energy storage component in a photovoltaic power supply system. Stochastic and deterministic models are created to simulate the behavior of the system component;. The components are the solar resource, the photovoltaic power supply system, the rechargeable battery, and a load. Artificial neural networks are incorporated into the model of the rechargeable battery to simulate damage that occurs during deep discharge cycles. The equations governing system behavior are combined into one set and solved simultaneously in the Monte Carlo framework to evaluate the probabilistic character of measures of battery behavior.

Barney, P.; Ingersoll, D.; Jungst, R.; O'Gorman, C.; Paez, T.L.; Urbina, A.

1998-11-24T23:59:59.000Z

178

Report on emergency electrical power supply systems for nuclear fuel cycle and reactor facilities security systems  

SciTech Connect

The report includes information that will be useful to those responsible for the planning, design and implementation of emergency electric power systems for physical security and special nuclear materials accountability systems. Basic considerations for establishing the system requirements for emergency electric power for security and accountability operations are presented. Methods of supplying emergency power that are available at present and methods predicted to be available in the future are discussed. The characteristics of capacity, cost, safety, reliability and environmental and physical facility considerations of emergency electric power techniques are presented. The report includes basic considerations for the development of a system concept and the preparation of a detailed system design.

1977-01-01T23:59:59.000Z

179

Transient power supply voltage (v{sub DDT}) analysis for detecting IC defects  

SciTech Connect

Transient power supply voltage (V{sub DDT}) analysis is a new testing technique demonstrated as a powerful alternative and complement to I{sub DDQ} testing. V{sub DDT} takes advantage of the limited response time of a voltage supply to the changing power demands of an IC during operation. Changes in the V{sub DD} response time are used to detect increases in power demand with resolutions of 100 nA at 100 kHz, 1 {mu}A at 1 MHz, and 2.5 {mu}A at 1.5 MHz. These current sensitivities have been shown for ICs with quiescent currents < 0.1 {mu}A and > 300 {mu}A. The V{sub DDT} signal acquisition protocols, frequency versus sensitivity tradeoffs, hardware considerations and limitations, data examples, and areas for future research are described.

Cole, E.I. Jr.; Soden, J.M.; Beegle, R.W. [and others

1997-04-01T23:59:59.000Z

180

Energy storage sizing for improved power supply availability during extreme events of a microgrid with renewable energy sources.  

E-Print Network (OSTI)

??A new Markov chain based energy storage model to evaluate the power supply availability of microgrids with renewable energy generation for critical loads is proposed.… (more)

Song, Junseok

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Indices for Characterizing Quality and Reliability of the Power Supply System  

Science Conference Proceedings (OSTI)

In recent years, as many electric utilities wrestle with deregulation issues, their customers are becoming even more concerned about the possible decline in power quality due to cost-cutting measures. Regulators throughout the world are trying to determine methods for assuring that the reliability and quality of the supply system do not deteriorate as deregulation of the industry takes place. Minimum standards for power quality have been established in Europe, EN 50160, but these do not include disturban...

2004-09-09T23:59:59.000Z

182

Single Event Upset Energy Dependence In a Buck-Converter Power Supply Design  

E-Print Network (OSTI)

We present a study of Single Event Upsets (SEU) performed on a commercial pulse-width modulator controller chip for switching power supplies. We performed tests to study the probability of an SEU occurring as a function of incident particle (hadron) energy. We discuss the performance of the circuit, and present a solution using external circuitry to effectively eliminate the effect.

Drake, G; The ATLAS collaboration; Gopalakrishnan, A; Mahadik, S; Mellado, B; Proudfoot, J; Reed, R; Senthilkumaran, A; Stanek, R

2012-01-01T23:59:59.000Z

183

Three-phase power supplying system for induction motor of the diesel-electric locomotive  

Science Conference Proceedings (OSTI)

In the railway traction systems, an important role play Diesel-electric locomotive. The AC traction motor proves its advantages compared to the DC older motor, but the supply (the power inverter) is more sophisticated and expensive and, in many cases, ...

M. Huzau; Eva-Henrietta Dulf; V. Tulbure; Cl. Festila

2008-05-01T23:59:59.000Z

184

Pulsed power supply for Nova Upgrade. Final report, August 1, 1991 to March 31, 1992  

DOE Green Energy (OSTI)

This report describes work carried out at the Center for Electromechanics at The University of Texas at Austin (CEM-UT). A baseline design of the Nova Upgrade has been completed by Lawrence Livermore National Laboratory. The Nova Upgrade is an 18 beamline Nd: glass laser design utilizing fully relayed 4x4 30 cm aperture segmented optical components. The laser thus consists of 288 independent beamlets nominally producing 1.5 to 2.0 MJ of 0.35 {mu}m light in a 3 to 5 ns pulse. The laser design is extremely flexible and will allow a wide range of pulses to irradiate ICF targets. This facility will demonstrate ignition/gain and the scientific feasibility of ICF for energy and defense applications. The pulsed power requirements for the Nova Upgrade are given. CEM-UT was contracted to study and develop a design for a homopolar generator/inductor (HPG/inductor) opening switch system which would satisfy the pulsed power supply requirements of the Nova Upgrade. The Nd:glass laser amplifiers used in the Nova Upgrade will be powered by light from xenon flashlamps. The pulsed power supply for the Nova Upgrade powers the xenon flashlamps. This design and study was for a power supply to drive flashlamps.

Bacon, J.L.; Kajs, J.P.; Walls, A.; Weldon, W.F.; Zowarka, R.C. [Univ. of Texas, Austin, TX (US). Center for Electromechanics] [Univ. of Texas, Austin, TX (US). Center for Electromechanics

1992-12-31T23:59:59.000Z

185

Environmental Energy Technologies Division News  

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

in Progress Research Highlights Sources and Credits PDF of EETD News Image of a flywheel uninterruptible power supply (UPS) Figure 1. Flywheel uninterruptible power supply...

186

Federal Energy Management Program: Covered Product Category:...  

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

Uninterruptible Power Supplies to someone by E-mail Share Federal Energy Management Program: Covered Product Category: Uninterruptible Power Supplies on Facebook Tweet about...

187

Use of Incremental Pricing in Coal Supply and Transportation Agreements to Achieve Power Sales: Report Series of Fuel and Power Market Integration  

Science Conference Proceedings (OSTI)

Increased power market competition is transforming into increased fuel supply competition. This report examines the role that "incremental pricing" for coal supply and transportation services plays in permitting power generators to achieve greater power sales. Surprisingly, the outlook for using such mechanisms for this purpose is more restricted than one might expect.

1997-11-26T23:59:59.000Z

188

Power Supply  

Science Conference Proceedings (OSTI)

...in rate from about one-half to several hundred kilowatts, thus providing a wide selection that can be

189

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 55, NO. 10, OCTOBER 2007 2043 Power Supply Rejection for RF Amplifiers  

E-Print Network (OSTI)

from noise or voltage ripple on the power supply. As demonstrated in Fig. 1, spectral energy injected the interaction of supply noise with RF amplifier components for successful design of the system. In the context noted, the op- erator is not fully symmetric in this representation because the supply noise and RF

Sanders, Seth

190

renewable sources of power. Demand for fossil fuels surely will overrun supply s  

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

renewable sources of power. Demand for fossil fuels surely will overrun supply sooner or later, renewable sources of power. Demand for fossil fuels surely will overrun supply sooner or later, as indeed it already has in the casc of United States domestic oil drilling. Recognition also is growing that our air and land can no longer absorb unlimited quantities of waste from fossil fuel extraction and combustion. As that day draws nearer, policymakers will have no realistic alternative but to turn to sources of power that today make up a viable but small part of America's energy picture. And they will be forced to embrace energy efficiencies - those that are within our reach today, and those that will be developed tomorrow. Precisely when they come lo grips with that reality - this year, 10 years from now, or 20 years from now - will determine bow smooth the transition will be for consumers and industry alike.

191

Empowering wind power; On social and institutional conditions affecting the performance of entrepreneurs in the wind power supply market in the Netherlands.  

E-Print Network (OSTI)

??This dissertation focuses on wind energy for electricity generation, analysing the evolution of the wind power supply market in the Netherlands. We analysed different kind… (more)

Agterbosch, S.

2006-01-01T23:59:59.000Z

192

Assessment of the Economic Potential of Microgrids for Reactive Power Supply  

DOE Green Energy (OSTI)

As power generation from variable distributed energy resources (DER) grows, energy flows in the network are changing, increasing the requirements for ancillary services, including voltage support. With the appropriate power converter, DER can provide ancillary services such as frequency control and voltage support. This paper outlines the economic potential of DERs coordinated in a microgrid to provide reactive power and voltage support at its point of common coupling. The DER Customer Adoption Model assesses the costs of providing reactive power, given local utility rules. Depending on the installed DER, the cost minimizing solution for supplying reactive power locally is chosen. Costs include the variable cost of the additional losses and the investment cost of appropriately over-sizing converters or purchasing capacitors. A case study of a large health care building in San Francisco is used to evaluate different revenue possibilities of creating an incentive for microgrids to provide reactive power.

Appen, Jan von; Marnay, Chris; Stadler, Michael; Momber, Ilan; Klapp, David; Scheven, Alexander von

2011-05-01T23:59:59.000Z

193

Techno-economic analysis of using corn stover to supply heat and power to a corn ethanol plant - Part 1: Cost of feedstock supply logistics  

Science Conference Proceedings (OSTI)

Supply of corn stover to produce heat and power for a typical 170 dam3 dry mill ethanol plant is proposed. The corn ethanol plant requires 5.6 MW of electricity and 52.3 MW of process heat, which creates the annual stover demand of as much as 140 Gg. The corn stover supply system consists of collection, preprocessing, transportation and on-site fuel storage and preparation to produce heat and power for the ethanol plant. Economics of the entire supply system was conducted using the Integrated Biomass Supply Analysis and Logistics (IBSAL) simulation model. Corn stover was delivered in three formats (square bales, dry chops and pellets) to the combined heat and power plant. Delivered cost of biomass ready to be burned was calculated at 73 $ Mg-1 for bales, 86 $ Mg-1 for pellets and 84 $ Mg-1 for field chopped biomass. Among the three formats of stover supply systems, delivered cost of pelleted biomass was the highest due to high pelleting cost. Bulk transport of biomass in the form of chops and pellets can provide a promising future biomass supply logistic system in the US, if the costs of pelleting and transport are minimized.

Sokhansanj, Shahabaddine [ORNL; Mani, Sudhagar [University of Georgia; Togore, Sam [U.S. Department of Energy; Turhollow Jr, Anthony F [ORNL

2010-01-01T23:59:59.000Z

194

A PULSED MODULATOR POWER SUPPLY FOR THE G-2 MUON STORAGE RING INJECTION KICKER.  

DOE Green Energy (OSTI)

This paper describes the pulse modulator power supplies used to drive the kicker magnets that inject the muon beam into the 8-2 storage ring that has been built at Brookhaven National Laboratory. Three modulators built into coaxial structures consisting of a series circuit of an energy storage capacitor, a damping resistor and a fast thyratron switch are used to energize three magnets that kick the beam into the proper orbit. A 100 kV charging power supply is used to charge the capacitor to 95kV. The damping resistor shapes the magnet current waveform to a 450 nanosecond half-sine to match the injection requirements. This paper discusses the modulator design, construction and operation.

MI,J.LEE,Y.Y.MORSE,W.M.PAI,C.I.PAPPAS,G.C.SANDERS,Y.SEMERTIZIDIS,Y.,ET AL.

2003-03-01T23:59:59.000Z

195

A Pulsed Modulator Power Supply for the g-2 Muon Storage Ring Injection Kicker  

DOE Green Energy (OSTI)

This paper describes the pulse modulator power supplies used to drive the kicker magnets that inject the muon beam into the g-2 storage ring that has been built at Brookhaven. Three modulators built into coaxial structures consisting of a series circuit of an energy storage capacitor, damping resistor and a fast thyratron switch are used to energize three magnets that kick the beam into the proper orbit. A 100 kV charging power supply is used to charge the capacitor to 95 kV. the damping resistor shapes the magnet current waveform to a 450 nanosecond half-sine to match the injection requirements. this paper discusses the modulator design, construction and operation.

Mi,J.; Lee, Y.Y.; Morse, W. M.; Pai, C.; Pappas, G.; Sanders, R.; Semertzidis, Y.

1999-03-29T23:59:59.000Z

196

Fuel from the Sky: Solar Power's Potential for Western Energy Supply  

DOE Green Energy (OSTI)

A reliable and affordable supply of electricity is essential to protect public health and safety and to sustain a vigorous economy in the West. Renewable energy in the form of wind or solar provides one of the means of meeting the demand for power while minimizing adverse impacts on the environment, increasing fuel diversity, and hedging against fuel price volatility. Concentrating solar power (CSP) is the most efficient and cost-effective way to generate electricity from the sun. Hundreds of megawatts of CSP solar-generating capacity could be brought on-line within a few years and make a meaningful contribution to the energy needs of the West.

Leitner, A.

2002-07-01T23:59:59.000Z

197

Real-Time Pricing- A Flexible Alternative for Electrical Power Supply  

E-Print Network (OSTI)

In an increasingly competitive operating environment, utilities must place greater emphasis on developing programs that benefit the customer while at the same time benefiting the utility. Economy Surplus Power (ESP) is such a program. ESP offers industrial customers attractively priced power supply arrangements based on incremental production costs. Industrial customers receive hourly price quotes for electrical power through a direct computer link between TVA and the customer. The customer has the option to increase or decrease the amount of power requested in response to price signals, plant load conditions, or production requirements. This paper will describe the arrangements for the sale and use of ESP, including the communication system, pricing variations, use of curtailment rights, the types of customers currently participating in the program, and recent modifications.

Reynolds, S. D.; Frye, A. O. Jr.

1991-06-01T23:59:59.000Z

198

Enhanced Ride-Through for Industrial Power Supplies: Feasibility, Testing, Design, and Assessment of Future Intelligent Embedded Sol utions  

Science Conference Proceedings (OSTI)

As the value and interest in characterizing end-use devices for their susceptibility to disturbances such as voltage sags and momentary interruptions increased, EPRI and its utility funders in power quality (PQ) began testing industrial power supplies (IPSs). Tests conducted by EPRI Solutions as a part of the EPRI System Compatibility Research Project in the mid-1990s indicated that the immunity of IPSs to these disturbances, like the immunity of personal computer (PC) power supplies (CPSs), could be imp...

2005-03-23T23:59:59.000Z

199

Power supply switching for a mm-wave asymmetric multilevel outphasing power amplifier system  

E-Print Network (OSTI)

This thesis demonstrates power switches to be used in our new Asymmetric Multilevel Outphasing (AMO) transmitter architecture at mm-wave frequencies. The AMO topology breaks the linearity vs. efficiency design objective ...

Spaulding, Jonathon David

2010-01-01T23:59:59.000Z

200

Method of and apparatus for controlling loads on an electrical power supply  

SciTech Connect

To enable a consumer of electrical energy to effect control of total energy consumption by various individual appliances and loads, each individual load has a control unit, conveniently in a plug top, which responds to pulses broadcast on the power supply wiring in the form of short duration interruptions of the waveform. At each appliance a microprocessor unit counts the number of successive pulses in a predetermined time interval and operates an electronic switch if the received count reaches a predetermined number, which may be different for different loads thereby enabling selective control of the loads. Provision is made for automatic restoration of supply if the overall energy consumption falls. Provision can also be made for automatic resumption of supp

Peddie, R.A.; Fielden, J.S.

1984-09-11T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Human powered piezoelectric batteries to supply power of wereables electronic devices  

E-Print Network (OSTI)

Abstract: Consumer electronic equipments are becoming small, portable devices that provide users with a wide range of functionality, from communication to music playing. The battery technology and the power consumption of the device limit the size, weight and autonomous lifetime. One promising alternative to batteries (and fuel cells, that must be refueled as well) is to use the parasitic energy dissipated in the movement of the wearer of the device to power it. We analyze in this work the current state-of-the-art and the future prospect of energy conversion from mechanical movement in the human environment to electrical energy based upon the piezoelectric effect. This is an interdisciplinary field where material technology and electrical circuits have to advance together to improve the conversion efficiency in order to reach the energy demands of the typical portable consumer electronic devices that will become in this way autonomous wearable devices. Key Words: Power generators, Piezoelectric materials, Wearable devices. 1

José Luis González; Antonio Rubio; Francesc Moll

2002-01-01T23:59:59.000Z

202

Biomass plants face wood supply risks Report warns giant new biomass power plants will be hugely reliant on wood chip  

E-Print Network (OSTI)

Biomass plants face wood supply risks Report warns giant new biomass power plants will be hugely's biomass energy sector could be undermined unless businesses move to resolve the supply chain issues-scale biomass plants will leave generators largely reliant on biomass from overseas such as wood chips, elephant

203

An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England  

E-Print Network (OSTI)

the prices of fuels at energy markets and the transportation/distribution costs in making their economic the fuel price at each energy fuel market am. Since this paper focuses on the electric power supply chain markets that captures both the economic network transactions in energy supply markets and the physical

Nagurney, Anna

204

Technology Assessment and Application Guide for the Bonitron Single-Phase Power Supply for Three-Phase Variable Frequency Drives  

Science Conference Proceedings (OSTI)

The objective of this report is to describe and document the operation and performance of a Bonitron single-phase power supply that is designed to allow three-phase drive operation. This report will describe the different tests that were conducted to characterize the Bonitron power supply and their results. The tests that were conducted include voltage sag, interruption, recloser, and harmonic profiling. Additional characterization tests are also discussed.The voltage sag and ...

2013-10-17T23:59:59.000Z

205

CEA Â… External Power Supplies, CCE Overview and Update presentation, dated June 28, 2011.  

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

CEA - External Power CEA - External Power Supplies CCE Overview and Update June 28, 2011 1 2 3 4 5 6 Agenda Certified Ratings Basic Models and Design Families Manufacturer and Importer Enforcement Overview DOE's New Initiatives How to Submit Questions 2 | Building Technologies Program & General Counsel's Office of Enforcement eere.energy.gov Manufacturer Explanation A manufacturer * Is the domestic manufacturer or an importer. * May produce equipment at multiple facilities in various locations with the same model characteristics. * May group individual models into basic models at the manufacturer's discretion. * May elect to use a third party (e g certified laboratory or * May elect to use a third-party (e.g., certified laboratory or foreign OEM) for testing and certification submission.

206

Supervision Application for the New Power Supply of the CERN PS (POPS)  

E-Print Network (OSTI)

The power supply system for the magnets of the CERN PS has been recently upgraded to a new system called POPS (POwer for PS). The old mechanical machine has been replaced by a system based on capacitors. The equipments as well as the low level controls have been provided by an external company (CONVERTEAM). The supervision application has been developed at CERN reusing the technologies and tools used for the LHC Accelerator and Experiments (UNICOS and JCOP frameworks, SIMATIC WinCC Open Architecture SCADA tool). The paper describes the full architecture of the control application, and the challenges faced for the integration with an outsourced system. The benefits of reusing the CERN industrial control frameworks and the required adaptations will be discussed. Finally, the initial operational experience will be presented.

Milcent, H; Gonzalez-Berges, M; Voitier, A

2011-01-01T23:59:59.000Z

207

Biometrics Test Lab  

Science Conference Proceedings (OSTI)

... Environment: electrical supply, uninterruptible power backup, and air conditioning. This project provides continual technology ...

2011-12-14T23:59:59.000Z

208

Niknejad, “A 5.8-GHz linear power amplifier in a standard 90-nm CMOS process using a 1-V power supply  

E-Print Network (OSTI)

thin oxide transistors utilizes a novel on-chip transformer power combining network. The transformer combines the power of four push-pull stages with low insertion loss over the bandwidth of interest and is compatible with standard CMOS process without any additional analog or RF enhancements. With a 1 V power supply, the PA achieves 24.3dBm maximum output power at a peak drain efficiency of 27 % and 20.5dBm output power at the 1 dB compression point. Index Terms — Power amplifiers, CMOS power amplifier, power combiners

Peter Haldi; Debopriyo Chowdhury; Gang Liu; Ali M. Niknejad

2007-01-01T23:59:59.000Z

209

Construction and testing of the 2XIIB flat-topping power supply  

SciTech Connect

The construction details and test results of the 2XIIB flat-topping modules are described. Both practical design and construction considerations as well as fabrication techniques are discussed. Power for the main compression coils of the 2XIIB is derived by discharging a high-voltage capacitor bank and then crowbarring at the current peak to obtain L/R decay in the fields. To study plasma confinement under these quasi steady-state conditions, it is necessary to hold the compression-coil current constant for 10 ms. This is done by supplying only the I$sup 2$R losses of the system, using a low-voltage bank. The low- voltage bank consists of 48 modules each supplying 20,000 A at +-450 V to each compression coil for a total of 480,000 A. The low-voltage electrolytic bank is isolated from the high-voltage (20-kV) bank by silicon diodes, which also act as crowbars at the end of the 10-ms flat-topping or in the event that the electrolytic bank is not used. The 10-ms pulse is obtained by sequentially discharging ten electrolytic ''drawers,'' each supplying a 1-ms pulse to each of the 48 modules. Each ''drawer'' consists of 24 1500-$mu$f electrolytic capacitors controlled by a thyristor and isolated from each other by rectifier diodes. Inductors are included as part of each drawer to limit the di/dt of the thyristor during the commutation process. (auth)

Refigato, L.L.; Smith, B.H.

1975-11-01T23:59:59.000Z

210

Development of a lithium hydride powered hydrogen generator for use in long life, low power PEM fuel cell power supplies  

E-Print Network (OSTI)

This thesis studies a hybrid PEM fuel cell system for use in low power, long life sensor networks. PEM fuel cells offer high efficiency and environmental friendliness but have not been widely adopted due to cost, reliability, ...

Strawser, Daniel DeWitt

2012-01-01T23:59:59.000Z

211

Development of a current collection loss management system for SDI homopolar power supplies  

Science Conference Proceedings (OSTI)

High speed, high power density current collection systems have been identified as an enabling technology required to construct homopolar power supplies to meet SDI missions. This work is part of a three-year effort directed towards the analysis, experimental verification, and prototype construction of a current collection system designed to operate continuously at 2 kA/cm{sup 2}, at a rubbing speed of 200 m/s, and with acceptable losses in a space environment. To data, no system has achieved these conditions simultaneously. This is the annual report covering the second year period of performance on DOE contract DE-AC03-86SF16518. Major areas covered include design, construction and operation of a cryogenically cooled brush test rig, design and construction of a high speed brush test rig, optimization study for homopolar machines, loss analysis of the current collection system, and an application study which defines the air-core homopolar construction necessary to achieve the goal of 80--90 kW/kg generator power density. 17 figs., 2 tabs.

Brown, D.W.

1989-01-01T23:59:59.000Z

212

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

213

A high voltage pulsed power supply for capillary discharge waveguide applications  

Science Conference Proceedings (OSTI)

We present an all solid-state, high voltage pulsed power supply for inducing stable plasma formation (density {approx}10{sup 18} cm{sup -3}) in gas-filled capillary discharge waveguides. The pulser (pulse duration of 1 {mu}s) is based on transistor switching and wound transmission line transformer technology. For a capillary of length 40 mm and diameter 265 {mu}m and gas backing pressure of 100 mbar, a fast voltage pulse risetime of 95 ns initiates breakdown at 13 kV along the capillary. A peak current of {approx}280 A indicates near complete ionization, and the r.m.s. temporal jitter in the current pulse is only 4 ns. Temporally stable plasma formation is crucial for deploying capillary waveguides as plasma channels in laser-plasma interaction experiments, such as the laser wakefield accelerator.

Abuazoum, S.; Wiggins, S. M.; Issac, R. C.; Welsh, G. H.; Vieux, G.; Jaroszynski, D. A. [Department of Physics, Scottish Universities Physics Alliance, University of Strathclyde, Glasgow G4 0NG (United Kingdom); Ganciu, M. [Low Temperature Plasma Department, National Institute of Lasers, Plasma and Radiation Physics, 077125, Magurele, Bucharest (Romania)

2011-06-15T23:59:59.000Z

214

Multimode power processor  

DOE Patents (OSTI)

In one embodiment, a power processor which operates in three modes: an inverter mode wherein power is delivered from a battery to an AC power grid or load; a battery charger mode wherein the battery is charged by a generator; and a parallel mode wherein the generator supplies power to the AC power grid or load in parallel with the battery. In the parallel mode, the system adapts to arbitrary non-linear loads. The power processor may operate on a per-phase basis wherein the load may be synthetically transferred from one phase to another by way of a bumpless transfer which causes no interruption of power to the load when transferring energy sources. Voltage transients and frequency transients delivered to the load when switching between the generator and battery sources are minimized, thereby providing an uninterruptible power supply. The power processor may be used as part of a hybrid electrical power source system which may contain, in one embodiment, a photovoltaic array, diesel engine, and battery power sources. 31 figs.

O' Sullivan, G.A.; O' Sullivan, J.A.

1999-07-27T23:59:59.000Z

215

Multimode power processor  

SciTech Connect

In one embodiment, a power processor which operates in three modes: an inverter mode wherein power is delivered from a battery to an AC power grid or load; a battery charger mode wherein the battery is charged by a generator; and a parallel mode wherein the generator supplies power to the AC power grid or load in parallel with the battery. In the parallel mode, the system adapts to arbitrary non-linear loads. The power processor may operate on a per-phase basis wherein the load may be synthetically transferred from one phase to another by way of a bumpless transfer which causes no interruption of power to the load when transferring energy sources. Voltage transients and frequency transients delivered to the load when switching between the generator and battery sources are minimized, thereby providing an uninterruptible power supply. The power processor may be used as part of a hybrid electrical power source system which may contain, in one embodiment, a photovoltaic array, diesel engine, and battery power sources.

O' Sullivan, George A. (Pottersville, NJ); O' Sullivan, Joseph A. (St. Louis, MO)

1999-01-01T23:59:59.000Z

216

A Preliminary Analysis of the Economics of Using Distributed Energy as a Source of Reactive Power Supply  

DOE Green Energy (OSTI)

A major blackout affecting 50 million people in the Northeast United States, where insufficient reactive power supply was an issue, and an increased number of filings made to the Federal Energy Regulatory Commission by generators for reactive power has led to a closer look at reactive power supply and compensation. The Northeastern Massachusetts region is one such area where there is an insufficiency in reactive power compensation. Distributed energy due to its close proximity to loads seems to be a viable option for solving any present or future reactive power shortage problems. Industry experts believe that supplying reactive power from synchronized distributed energy sources can be 2 to 3 times more effective than providing reactive support in bulk from longer distances at the transmission or generation level. Several technology options are available to supply reactive power from distributed energy sources such as small generators, synchronous condensers, fuel cells or microturbines. In addition, simple payback analysis indicates that investments in DG to provide reactive power can be recouped in less than 5 years when capacity payments for providing reactive power are larger than $5,000/kVAR and the DG capital and installation costs are lower than $30/kVAR. However, the current institutional arrangements for reactive power compensation present a significant barrier to wider adoption of distributed energy as a source of reactive power. Furthermore, there is a significant difference between how generators and transmission owners/providers are compensated for reactive power supplied. The situation for distributed energy sources is even more difficult, as there are no arrangements to compensate independent DE owners interested in supplying reactive power to the grid other than those for very large IPPs. There are comparable functionality barriers as well, as these smaller devices do not have the control and communications requirements necessary for automatic operation in response to local or system operators. There are no known distributed energy asset owners currently receiving compensation for reactive power supply or capability. However, there are some cases where small generators on the generation and transmission side of electricity supply have been tested and have installed the capability to be dispatched for reactive power support. Several concerns need to be met for distributed energy to become widely integrated as a reactive power resource. The overall costs of retrofitting distributed energy devices to absorb or produce reactive power need to be reduced. There needs to be a mechanism in place for ISOs/RTOs to procure reactive power from the customer side of the meter where distributed energy resides. Novel compensation methods should be introduced to encourage the dispatch of dynamic resources close to areas with critical voltage issues. The next phase of this research will investigate in detail how different options of reactive power producing DE can compare both economically and functionally with shunt capacitor banks. Shunt capacitor banks, which are typically used for compensating reactive power consumption of loads on distribution systems, are very commonly used because they are very cost effective in terms of capital costs. However, capacitor banks can require extensive maintenance especially due to their exposure to lightning at the top of utility poles. Also, it can be problematic to find failed capacitor banks and their maintenance can be expensive, requiring crews and bucket trucks which often requires total replacement. Another shortcoming of capacitor banks is the fact that they usually have one size at a location (typically sized as 300, 600, 900 or 1200kVAr) and thus don't have variable range as do reactive power producing DE, and cannot respond to dynamic reactive power needs. Additional future work is to find a detailed methodology to identify the hidden benefit of DE for providing reactive power and the best way to allocate the benefit among customers, utilities, transmission companies or RTOs.

Li, Fangxing [ORNL; Kueck, John D [ORNL; Rizy, D Tom [ORNL; King, Thomas F [ORNL

2006-04-01T23:59:59.000Z

217

Successful Use of Remote Engineering Technology to Upgrade Electrical Power Supplies to a Plant Producing Vitrified Highly Active Waste  

Science Conference Proceedings (OSTI)

This paper describes a remote handling intervention project on the Sellafield site in the UK that successfully replaced a critical part of a critical plant in a highly radioactive and contaminated cell. The aim of the project was to replace the existing design of electrical power supplies inside the plant that vitrifies high level liquid waste with a new improved design. The project designed and built a hydraulic manipulator and associated work-heads and tooling to be deployed in cell to remotely replace the power supplies. As part of this replacement process, the project also designed and built a drilling rig to remotely drill holes through the cell wall suitable for the new design of electrical power supplies. (authors)

Harken, J.P. [Nexia Solutions Ltd, Workington, Cumbria CA (United Kingdom)

2007-07-01T23:59:59.000Z

218

Lab 4 -Motor Constants and Sensor Calibration Consider a DC servo motor which is connected to a power supply. The motor inertia is Jm. The rotational  

E-Print Network (OSTI)

Lab 4 - Motor Constants and Sensor Calibration PRE-LAB Consider a DC servo motor which is connected to a power supply. The motor inertia is Jm. The rotational damping in the motor is bm. The motor produces a torque Tm = Kmi where Km is the motor's torque constant and i is the current from the power supply. a

Stanford University

219

Analysis and design of a high-current, high-voltage accurate power supply for the APS storage ring  

SciTech Connect

There are 81 dipole magnets contained in the storage ring at the Advanced Photon Source (APS). These magnets are connected in series and are energized by only one 12-phase power supply. The eighty-first magnet is located in a temperature-controlled room with an NMR probe to monitor the magnetic field in the magnet and provide a reference signal for correction of the field drift due to aging of the components. The current in the magnets will be held at 497 A. The required current stability of the power supply is {plus_minus}30 ppM, the current reproducibility is {plus_minus}50 ppM, and the current ripple is {plus_minus}400 ppM. The voltage required to maintain such a current in the magnets is about 1700 V. Different schemes for regulating current in the magnets are studied. Pspice software is used to simulate the behavior and the design of such a power supply under different conditions. The pros and cons of each scheme will be given and the proper power and regulating scheme will be selected.

Fathizadeh, M.

1993-08-01T23:59:59.000Z

220

"1. John E Amos","Coal","Appalachian Power Co",2900 "2. Harrison Power Station","Coal","Allegheny Energy Supply Co LLC",1954  

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

West Virginia" West Virginia" "1. John E Amos","Coal","Appalachian Power Co",2900 "2. Harrison Power Station","Coal","Allegheny Energy Supply Co LLC",1954 "3. Mt Storm","Coal","Virginia Electric & Power Co",1571 "4. Mitchell","Coal","Ohio Power Co",1560 "5. Mountaineer","Coal","Appalachian Power Co",1310 "6. Pleasants Power Station","Coal","Allegheny Energy Supply Co LLC",1288 "7. Fort Martin Power Station","Coal","Monongahela Power Co",1107 "8. Philip Sporn","Coal","Appalachian Power Co",1020 "9. Kammer","Coal","Ohio Power Co",600

Note: This page contains sample records for the topic "uninterruptible power supply" 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

RADIOISOTOPE-FUELED POWER SUPPLIES. Lecture Presented at University of California, Los Angeles, California, UCLA Short Course, Space Power Systems, July 17-28, 1961  

SciTech Connect

Considerations that permit selection of a radioisotope that meets the complex requirements of the desired power supply are discussed. Methods of separation and purification of useful isotopes are outlined. Brief mention is made of the principles of direct conversion of heat to electricity. Design approaches for isotopic power units are described. A delineation of the approach to the solution of the nuclear safety problem is made, followed by predictions for the future of isotopic power. Sample problems of the type solved in the SNAP program are given. (M.C.G.)

Morse, J.G.

1963-10-31T23:59:59.000Z

222

Supply of geothermal power from hydrothermal sources: A study of the cost of power in 20 and 40 years  

DOE Green Energy (OSTI)

This study develops estimates for the amount of hydrothermal geothermal power that could be on line in 20 and 40 years. This study was intended to represent a snapshot'' in 20 and 40 years of the hydrothermal energy available for electric power production should a market exist for this power. This does not represent the total or maximum amount of hydrothermal power, but is instead an attempt to estimate the rate at which power could be on line constrained by the exploration, development and support infrastructure available to the geothermal industry, but not constrained by the potential market for power.

Petty, S. (Petty (Susan) Consulting, Solano Beach, CA (United States)); Livesay, B.J. (Livesay Consultants, Inc., Encinitas, CA (United States)); Long, W.P. (Carlin Gold Co., Inc., Grass Valley, CA (United States)); Geyer, J. (Geyer (John) and Associates, Vancouver, WA (United States))

1992-11-01T23:59:59.000Z

223

HARDWARE IMPLEMENTATION AND TEST RESULTS OF PEP CHOPPER MAGNET POWER SUPPLY SYSTEM  

E-Print Network (OSTI)

used as the 0 to 600 volt DC supply for the chopper family.s~gnal and converts it to 24 volt"' firing pulse via a ramp4 are detected at zel"o volts. The bar shol"ts the DC output

Jackson, L.T.

2010-01-01T23:59:59.000Z

224

Global nuclear power supply chains and the rise of China's nuclear industry  

E-Print Network (OSTI)

China has embarked on a massive expansion of nuclear power that may fundamentally change the global nuclear industry, for better or for worse. Some industry observers argue that the incumbent nuclear power companies are ...

Metzler, Florian

2012-01-01T23:59:59.000Z

225

Assessment of the Economic Potential of Microgrids for Reactive Power Supply  

E-Print Network (OSTI)

of Commercial Building Microgrids,” IEEE Transactions onEconomic Potential of Microgrids for Reactive Power Supplyof creating an incentive for microgrids to provide reactive

Appen, Jan von

2012-01-01T23:59:59.000Z

226

Solid State eBurner for Supplying Power to Laptops, Cellphones ...  

Researchers at ORNL invented a device that converts energy from thermoelectric materials to power for cell phones, laptops, and other portable ...

227

Efficient and Reliable Reactive Power Supply and Consumption Â… Insights from an Integrated Program of Engineering and Economic Research  

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

82 82 Efficient and Reliable Reactive Power Supply and Consumption - Insights from an Integrated Program of Engineering and Economic Research Robert J. Thomas, Timothy D. Mount, Richard Schuler, William Schulze, Ray Zimmerman, Fernando Alvarado, Bernard C. Lesieutre, Philip N. Overholt, and Joseph H. Eto Preprint version of paper Electricity Journal Energy Analysis Department Ernest Orlando Lawrence Berkeley National Laboratory 1 Cyclotron Road, MS 90R4000 Berkeley CA 94720-8136 Environmental Energy Technologies Division January 2008 http://eetd.lbl.gov/ea/EMS/EMS_pubs.html The work described in this report was coordinated by the Consortium for Electric Reliability, Technology Solutions and was funded under the Office of Electricity

228

Environmental decision making: supply-chain considerations  

E-Print Network (OSTI)

2. It is seen that the “power generation and supply” sectortool manufacturing. The power generation value, however, iskg are caused by the “power generation and supply” sector.

Reich-Weiser, Corinne; Dornfeld, David

2008-01-01T23:59:59.000Z

229

Autonomous induction generator/rectifier as regulated DC power supply for hybrid renewable energy systems  

Science Conference Proceedings (OSTI)

The present article deals with the wind power-generating unit of a Hybrid Photovoltaic-Wind Renewable Energy System (HPVWRES). The dynamic flux model of the self-excited induction generator used in the wind power-generating unit is given. This model, ... Keywords: experimental investigation, hybrid, induction generator, modeling, rectifier, regulation, renewable Energy

A. Nesba; R. Ibtiouen; S. Mekhtoub; O. Touhami; N. Takorabet

2005-10-01T23:59:59.000Z

230

High-efficiency power supplies for home computers and servers Google Inc. ~ September 2006  

E-Print Network (OSTI)

, the computer you're using wastes 30-40% of the electrical power it consumes because it is using an inefficient, or more than $5 billion at California's energy rates. The technical changes we propose are very small and low-risk. For historical reasons dating back to the original IBM PC in 1981, standard PC power

Cortes, Corinna

231

Dynamic pricing and stabilization of supply and demand in modern electric power grids  

E-Print Network (OSTI)

The paper proposes a mechanism for real-time pricing of electricity in smart power grids, with price stability as the primary concern. In previous publications the authors argued that relaying the real-time wholesale market ...

Roozbehani, Mardavij

232

Heat pipe cooled reactors for multi-kilowatt space power supplies  

SciTech Connect

Three nuclear reactor space power system designs are described that demonstrate how the use of high temperature heat pipes for reactor heat transport, combined with direct conversion of heat to electricity, can result in eliminating pumped heat transport loops for both primary reactor cooling and heat rejection. The result is a significant reduction in system complexity that leads to very low mass systems with high reliability, especially in the power range of 1 to 20 kWe. In addition to removing heat exchangers, electromagnetic pumps, and coolant expansion chambers, the heat pipe/direct conversion combination provides such capabilities as startup from the frozen state, automatic rejection of reactor decay heat in the event of emergency or accidental reactor shutdown, and the elimination of single point failures in the reactor cooling system. The power system designs described include a thermoelectric system that can produce 1 to 2 kWe, a bimodal modification of this system to increase its power level to 5 kWe and incorporate high temperature hydrogen propulsion capability, and a moderated thermionic reactor concept with 5 to 20 kWe power output that is based on beryllium modules that thermally couple cylindrical thermionic fuel elements (TFEs) to radiator heat pipes.

Ranken, W.A.; Houts, M.G.

1995-01-01T23:59:59.000Z

233

The Management of International Rivers as Demands Grow and Supplies Tighten: India, China, Nepal, Pakistan, Bangladesh  

E-Print Network (OSTI)

hydro. International Hydro Power and Dam Construction.suggested) Supply of hydro-electric power * Supply of waterrights ? Supply of hydro-electric power ? Supply of water

Crow, Ben; Singh, Nirvikar

2009-01-01T23:59:59.000Z

234

Cellular / wireless LAN repeater system by wireless optical link with optical power supply  

Science Conference Proceedings (OSTI)

Wireless market, such as cellular systems and wireless LAN, becomes huge and is still expanding. Since operational frequency and transmission bit rate are increasing, much more base stations or access points are necessary to overcome capacity and link ... Keywords: RoF, cellular system, optical power transmission, optical transmission, wireless

Nobuo Nakajima; Naohiro Yokota

2008-08-01T23:59:59.000Z

235

Using Distributed Energy Resources to Supply Reactive Power for Dynamic Voltage Regulation  

Science Conference Proceedings (OSTI)

Abstract Distributed energy (DE) resources are power sources located near load centers and equipped with power electronics converters to interface with the grid, therefore it is feasible for DE to provide reactive power (along with active power) locally for dynamic voltage regulation. In this paper, a synchronous condenser and a DE source with an inverter interface are implemented in parallel in a distribution system to regulate the local voltage. Developed voltage control schemes for the inverter and the synchronous condenser are presented. Experimental results show that both the inverter and the synchronous condenser can regulate the local voltage instantaneously although the dynamic response of the inverter is much faster than the synchronous condenser. In a system with multiple DEs performing local voltage regulation, the interaction of multiple DE at different locations under different load levels may have an impact to the control parameter setting for each individual DE control system. Future research is needed to find out the interaction of DEs to identify the optimal control parameter settings with the consideration of many factors such as system configuration, load variation, and so on

Xu, Yan [ORNL; Li, Fangxing [ORNL; Li, Huijuan [University of Tennessee, Knoxville (UTK); Rizy, D Tom [ORNL; Kueck, John D [ORNL

2008-01-01T23:59:59.000Z

236

Energy and cost analysis of a solar-hydrogen combined heat and power system for remote power supply using a computer simulation  

SciTech Connect

A simulation program, based on Visual Pascal, for sizing and techno-economic analysis of the performance of solar-hydrogen combined heat and power systems for remote applications is described. The accuracy of the submodels is checked by comparing the real performances of the system's components obtained from experimental measurements with model outputs. The use of the heat generated by the PEM fuel cell, and any unused excess hydrogen, is investigated for hot water production or space heating while the solar-hydrogen system is supplying electricity. A 5 kWh daily demand profile and the solar radiation profile of Melbourne have been used in a case study to investigate the typical techno-economic characteristics of the system to supply a remote household. The simulation shows that by harnessing both thermal load and excess hydrogen it is possible to increase the average yearly energy efficiency of the fuel cell in the solar-hydrogen system from just below 40% up to about 80% in both heat and power generation (based on the high heating value of hydrogen). The fuel cell in the system is conventionally sized to meet the peak of the demand profile. However, an economic optimisation analysis illustrates that installing a larger fuel cell could lead to up to a 15% reduction in the unit cost of the electricity to an average of just below 90 c/kWh over the assessment period of 30 years. Further, for an economically optimal size of the fuel cell, nearly a half the yearly energy demand for hot water of the remote household could be supplied by heat recovery from the fuel cell and utilising unused hydrogen in the exit stream. Such a system could then complement a conventional solar water heating system by providing the boosting energy (usually in the order of 40% of the total) normally obtained from gas or electricity. (author)

Shabani, Bahman; Andrews, John; Watkins, Simon [School of Aerospace Mechanical and Manufacturing Engineering, RMIT University, Melbourne (Australia)

2010-01-15T23:59:59.000Z

237

Redundancy of Supply in the International Nuclear Fuel Fabrication Market: Are Fabrication Services Assured?  

SciTech Connect

For several years, Pacific Northwest National Laboratory (PNNL) has been assessing the reliability of nuclear fuel supply in support of the U.S. Department of Energy/National Nuclear Security Administration. Three international low enriched uranium reserves, which are intended back up the existing and well-functioning nuclear fuel market, are currently moving toward implementation. These backup reserves are intended to provide countries credible assurance that of the uninterrupted supply of nuclear fuel to operate their nuclear power reactors in the event that their primary fuel supply is disrupted, whether for political or other reasons. The efficacy of these backup reserves, however, may be constrained without redundant fabrication services. This report presents the findings of a recent PNNL study that simulated outages of varying durations at specific nuclear fuel fabrication plants. The modeling specifically enabled prediction and visualization of the reactors affected and the degree of fuel delivery delay. The results thus provide insight on the extent of vulnerability to nuclear fuel supply disruption at the level of individual fabrication plants, reactors, and countries. The simulation studies demonstrate that, when a reasonable set of qualification criteria are applied, existing fabrication plants are technically qualified to provide backup fabrication services to the majority of the world's power reactors. The report concludes with an assessment of the redundancy of fuel supply in the nuclear fuel market, and a description of potential extra-market mechanisms to enhance the security of fuel supply in cases where it may be warranted. This report is an assessment of the ability of the existing market to respond to supply disruptions that occur for technical reasons. A forthcoming report will address political disruption scenarios.

Seward, Amy M.; Toomey, Christopher; Ford, Benjamin E.; Wood, Thomas W.; Perkins, Casey J.

2011-11-14T23:59:59.000Z

238

Demand Response and Open Automated Demand Response Opportunities for Data Centers  

E-Print Network (OSTI)

pumps, improved power supplies and transformers, and freeby adding power delivery (transformer and UPS losses),as uninterruptible power supplies (UPS), transformers, and

Mares, K.C.

2010-01-01T23:59:59.000Z

239

Safety procedures for the MFTF sustaining-neutral-beam power supply  

Science Conference Proceedings (OSTI)

The MFTF SNBPSS comprises a number of sources of potentially hazardous electrical energy in a small physical area. Power is handled at 80 kV dc, 80 A; 70 V dc, 4000 A; 25 V dc, 5500 A; 3 kV dc, 10 A; and 2 kV dc, 10 A. Power for these systems is furnished from two separate 480 V distribution systems and a 13.8 kV distribution system. A defense in depth approach is used; interlocks are provided in the hardware to make it difficult to gain access to an energized circuit, and the operating procedure includes precautions which would protect personnel even if no interlocks were working. The complexity of the system implies a complex operating procedure, and this potential complexity is controlled by presenting the procedure in a modular form using 37 separate checklists for specific operations. The checklists are presented in flowchart form, so contingencies can be handled at the lowest possible level without compromising safety.

Wilson, J.H.

1981-10-19T23:59:59.000Z

240

HOPF BIFURCATION AS AN INTERMEDIATE-SCALE INSTABILITY IN SINGLE-STAGE POWER-FACTOR-CORRECTION POWER SUPPLIES: ANALYSIS, SIMULATIONS AND EXPERIMENTAL VERIFICATION  

E-Print Network (OSTI)

This paper reports intermediate-scale instability in a single-stage power-factor-correction (PFC) power supply that employs a cascade configuration of a boost stage operating in discontinuous conduction mode (DCM) and a forward stage operating in continuous conduction mode (CCM). The two stages combine into a single stage by sharing one main switch and one control loop to achieve input PFC and tight output regulation. The main results are given by “exact ” cycle-bycycle circuit simulations. The effect of the intermediate-scale instability on the attainable power factor is illustrated in terms of total harmonic distortion (THD) which is found by taking the Fast Fourier Transform (FFT) of the input current. The intermediate-scale instability usually manifests itself as local oscillations within a line cycle. Based on the stability analysis of a buck converter operating in CCM, the underlying mechanism of such instability can be attributed to the Hopf bifurcation that occurred in CCM forward stage. Finally, experimental results are presented for verification purposes.

Dong Dai; Chik. Tse; Bo Zhang; Xikui Ma

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Coupling Renewable Energy Supply with Deferrable Demand  

E-Print Network (OSTI)

ous systems absorb large amounts of hydroelectric power.that snow melts and hydroelectric power supply increases andwater supplies from hydroelectric dams or discards renewable

Papavasiliou, Anthony

2011-01-01T23:59:59.000Z

242

Assessing Vehicle Electricity Demand Impacts on California Electricity Supply  

E-Print Network (OSTI)

emissions rate from natural gas supply that occurs upstreamassociated with natural gas supply to the power plant weresuggest natural gas-fired power plants will supply

McCarthy, Ryan W.

2009-01-01T23:59:59.000Z

243

Generating capacity of the united power system of Russia and conditions of fuel supply to electric power plants for the period up to 2020  

SciTech Connect

Prospects of development of the energy economy in Russia are considered up to 2020. The proportion of thermal power plants (TPP) in the structure of the generating capacity of Russia amounts to about 70% (147 mln kW). The proportion of gas in the structure of fuel consumed by TPP amounts to 64%. It is predicted that the fraction of high-quality kinds of fuel (gas and fuel oil) will decrease in the considered period due to maximum involvement of coal in the fuel balance and wider use of combined-cycle and gas-turbine technologies that provide a lower specific consumption of fuel. It is planned to resort to advanced technologies both for reconstructing existing plants and erecting new ones. This paper deals with problems of fuel supply of fossil-fuel-fired thermal power plants in the light of the evolution of the energy economy of Russia. The demand of TPP for different kinds of fossil fuel, i.e., gas, coal, and fuel oil, is estimated for the whole of the country and for its regions according to two variants of development of the generating capacity with planned commissioning of combined-cycle plants with a total output of 32 mln kW and gas-turbine plants with a total output of 61 mln kW in the period of up to 2020. The tasks of the fuel policy to be solved in the considered period are presented.

V.I. Chemodanov; N.V. Bobyleva; N.G. Chelnokova; N.Yu. Sokolova [Energoset'proekt Institute, Moscow (Russian Federation)

2002-05-15T23:59:59.000Z

244

Modeling of the charging characteristic of linear-type superconducting power supply using granular-based radial basis function neural networks  

Science Conference Proceedings (OSTI)

Since superconducting coils cause the current decay due to connection resistance and intrinsic characteristic in the persistent current mode, various current compensations should be required to maintain stable property in the superconducting magnet system. ... Keywords: Charging characteristic, Fuzzy C-means (FCM) clustering method, Granular-based radial basis function neural network, Information granules, K-means clustering, Linear-type superconducting power supply

H. -S. Park; W. Pedrycz; Y. -D. Chung; S. -K. Oh

2012-01-01T23:59:59.000Z

245

Power plant and system for accelerating a cross compound turbine in such plant, especially one having an HTGR steam supply  

SciTech Connect

An electric power plant having a cross compound steam turbine and a steam source that includes a high temperature gas-cooled nuclear reactor is described. The steam turbine includes high and intermediate-pressure portions which drive a first generating means, and a low-pressure portion which drives a second generating means. The steam source supplies superheat steam to the high-pressure turbine portion, and an associated bypass permits the superheat steam to flow from the source to the exhaust of the high-pressure portion. The intermediate and low-pressure portions use reheat steam; an associated bypass permits reheat steam to flow from the source to the low-pressure exhaust. An auxiliary turbine driven by steam exhausted from the high-pressure portion and its bypass drives a gas blower to propel the coolant gas through the reactor. While the bypass flow of reheat steam is varied to maintain an elevated pressure of reheat steam upon its discharge from the source, both the first and second generating means and their associated turbines are accelerated initially by admitting steam to the intermediate and low-pressure portions. The electrical speed of the second generating means is equalized with that of the first generating means, whereupon the generating means are connected and acceleration proceeds under control of the flow through the high-pressure portion. 29 claims, 2 figures.

Jaegtnes, K.O.; Braytenbah, A.S.

1977-02-15T23:59:59.000Z

246

Experimental observation of the behaviour of cogenerated dusty plasma using a bipolar pulsed direct current power supply  

SciTech Connect

We have experimentally observed the behaviour of cogenerated dusts in unmagnetized plasma produced using a bipolar pulsed dc power supply. In this experiment, the dust particles have been generated through sputtering of graphite cathode and were stratified between two electrodes. This stratification of dust clouds has obtained at a typical range of plasma parameters, namely, 650 V (peak-to-peak) with 0.2 mbar pressure. In above condition, we detected the Taylor-like instability at the interface of two dusty clouds with different densities. A very less dust density (void like) region inside the lesser dust density portion is also noted. Again, it has been observed that a self excited dust density wave propagates towards the higher density dust fluid inside the system as well as a stationary band structure of thin multiple layers of dust particles when we apply a higher voltage (750 V peak-to-peak). The wavelength, phase velocity, and frequency of the excited wave have also been estimated.

Sarkar, Sanjib; Bose, M. [Department of Physics, Jadavpur University, Kolkata 700032 (India); Pramanik, J. [Kharagpur College, Kharagpur 721305, West Bengal (India); Mukherjee, S. [FCIPT, Institute for Plasma Research, Gandhinagar 382428 (India)

2013-02-15T23:59:59.000Z

247

Future power supply  

Science Conference Proceedings (OSTI)

This article is a review of the U.S. needs for new generating capacity during the next decade. Considering regulatory and technical issues and assuming a modest annual load growth of 1.9%, it is anticipated that there will be a 90 GWe deficit by the year 2000. Likely sources to provide this additional capacity are reviewed, and it is concluded that most new plants will be gas-fired simple-cycle combustion turbines. This will occur mainly because the country has excess baseload capacity and needs to add a considerable amount of peaking capacity to bring the generation mix into balance. It is also concluded that fossil-fueled plants will provide the country`s baseload for the foreseeable future.

Campbell, N.A.; Harris, K. [Burns & McDonnell Engineering Co., Kansas City, MO (United States)

1993-03-01T23:59:59.000Z

248

A Stator-Voltage Decoupling Control Strategy for DFIG-based Wind Power Turbine Supplying Local Isolated Load  

Science Conference Proceedings (OSTI)

The performance of doubly fed induction generator (DFIG) based wind turbines supplying local isolated load is manly up to the stator-voltage control strategy. Compared with conventional steady mathematic model based one, a dynamic mathematic model based ... Keywords: dynamic model, supplying local isolated load, decoupling stator-voltage control, DFIG-based wind turbine

Long Zhan; Shuying Yang; Hui Gao

2012-10-01T23:59:59.000Z

249

Gas Supply: Outlook for Critical New Sources to Meet Growing Gas Requirements: Report Series on Natural Gas and Power Reliability  

Science Conference Proceedings (OSTI)

The outlook for natural gas supplies is pivotal to long-term changes in the U.S. generation mix and to immediate costs of electricity. The price shock of 2000-01 was followed by another in 2002-03, and prices remain anomalously high. A sea change in expectations for natural gas is taking place, driven primarily by persistent difficulties expanding supplies in the face of accelerating depletion. This report assesses the lackluster recent gas supply response and the outlook for two major emerging sources, ...

2004-01-27T23:59:59.000Z

250

Gas Storage for Power Generation -- Critical New Bridge Between Power Demand and Gas Supply: Report Series on Natural Gas and Power Reliability  

Science Conference Proceedings (OSTI)

Natural gas storage is a "sleeper" issue for the power industry that will demand a great deal of attention very soon as the building boom of gas-fired capacity draws to a close and these plants begin to operate. While an entire industry has emerged in recent years to develop high-deliverability gas storage, the new facilities are likely the tip of an iceberg. Pipelines will be taxed to meet fluctuating requirements of new units, and companies will turn to gas storage for reliability at an affordable cost...

2002-11-11T23:59:59.000Z

251

Lab Supplies  

Science Conference Proceedings (OSTI)

reference materials, bleaching clay, activated bleaching earth and refining cups. Lab Supplies Lab Supplies Lab Supplies Laboratory Services analysis analytical methods aocs certified Certified Reference Materials (CRM) chemist chemists fats lab

252

Efficient and Reliable Reactive Power Supply and Consumption -- Insights from an Integrated Program of Engineering and Economic Research  

E-Print Network (OSTI)

need to establish real-time prices for reactive power toWe find that nodal real-time prices for reactive power willfind that non-zero real-time prices for reactive power will

2008-01-01T23:59:59.000Z

253

The conversion of biomass to ethanol using geothermal energy derived from hot dry rock to supply both the thermal and electrical power requirements  

SciTech Connect

The potential synergism between a hot dry rock (HDR) geothermal energy source and the power requirements for the conversion of biomass to fuel ethanol is considerable. In addition, combining these two renewable energy resources to produce transportation fuel has very positive environmental implications. One of the distinct advantages of wedding an HDR geothermal power source to a biomass conversion process is flexibility, both in plant location and in operating process is flexibility, both in plant location and in operating conditions. The latter obtains since an HDR system is an injection conditions of flow rate, pressure, temperature, and water chemistry are under the control of the operator. The former obtains since, unlike a naturally occurring geothermal resource, the HDR resource is very widespread, particularly in the western US, and can be developed near transportation and plentiful supplies of biomass. Conceptually, the pressurized geofluid from the HDR reservoir would be produced at a temperature in the range of 200{degrees} to 220{degrees}c. The higher enthalpy portion of the geofluid thermal energy would be used to produce a lower-temperature steam supply in a countercurrent feedwater-heater/boiler. The steam, following a superheating stage fueled by the noncellulosic waste fraction of the biomass, would be expanded through a turbine to produce electrical power. Depending on the lignin fraction of the biomass, there would probably be excess electrical power generated over and above plant requirements (for slurry pumping, stirring, solids separation, etc.) which would be available for sale to the local power grid. In fact, if the hybrid HDR/biomass system were creatively configured, the power plant could be designed to produce daytime peaking power as well as a lower level of baseload power during off-peak hours.

Brown, D.W.

1997-10-01T23:59:59.000Z

254

Optimal Power Cost Management Using Stored Energy in Data Centers  

E-Print Network (OSTI)

Since the electricity bill of a data center constitutes a significant portion of its overall operational costs, reducing this has become important. We investigate cost reduction opportunities that arise by the use of uninterrupted power supply (UPS) units as energy storage devices. This represents a deviation from the usual use of these devices as mere transitional fail-over mechanisms between utility and captive sources such as diesel generators. We consider the problem of opportunistically using these devices to reduce the time average electric utility bill in a data center. Using the technique of Lyapunov optimization, we develop an online control algorithm that can optimally exploit these devices to minimize the time average cost. This algorithm operates without any knowledge of the statistics of the workload or electricity cost processes, making it attractive in the presence of workload and pricing uncertainties. An interesting feature of our algorithm is that its deviation from optimality reduces as the...

Urgaonkar, Rahul; Neely, Michael J; Sivasubramaniam, Anand

2011-01-01T23:59:59.000Z

255

NIST Launches Advanced Measurement Laboratory  

Science Conference Proceedings (OSTI)

... electrical power filtering – AML-wide uninterruptible power supply prevents outages and counters voltage spikes, drop-outs and other “dirty power ...

2010-10-05T23:59:59.000Z

256

Transformer failure and common-mode loss of instrument power at Nine Mile Point Unit 2 on August 13, 1991  

Science Conference Proceedings (OSTI)

On August 13, 1991, at Nine Mile Point Unit 2 nuclear power plant, located near Scriba, New York, on Lake Ontario, the main transformer experienced an internal failure that resulted in degraded voltage which caused the simultaneous loss of five uninterruptible power supplies, which in turn caused the loss of several nonsafety systems, including reactor control rod position indication, some reactor power and water indication, control room annunciators, the plant communications system, the plant process computer, and lighting at some locations. The reactor was subsequently brought to a safe shutdown. Following this event, the US Nuclear Regulatory Commission dispatched an Incident Investigation Team to the site to determine what happened, to identify the probable causes, and to make appropriate findings and conclusions. This report describes the incident, the methodology used by the team in its investigation, and presents and the team's findings and conclusions. 59 figs., 14 tabs.

Not Available

1991-10-01T23:59:59.000Z

257

The Development of Simulation Model for D2O Supply System in Heavy Water Nuclear Power Plant  

Science Conference Proceedings (OSTI)

The main purpose of this research is improvement of performance in control system for heavy water supply system of nuclear fuel change machine. Before started design of control system, the model of target system is needed because it is hard to test and ... Keywords: simulation, nuclear, heavy-water, D2O, MATLAB

Sung-Won Choi; Seong-Geun Kwak; Ji-Hyoung Ryu; Kil-To Chong; Chang-Goo Lee

2012-05-01T23:59:59.000Z

258

Outlook for Capacity Retirements Following U.S. Boom in New Supplies: Report Series on Natural Gas and Power Reliability  

Science Conference Proceedings (OSTI)

While entrepreneurial exuberance for power plant development has evaporated in the face of market saturation, depressed power prices, and tightening credit, the legacy of the power plant building boom is record additions of gas-fired turbines and combined cycle units between 1998 and 2007. These are contributing to a wave of fossil plant retirements, projected for the first time in this report. The combination of recent cancellations and impending retirements reduces the outlook for overbuilding, yet res...

2003-02-04T23:59:59.000Z

259

Optimization of the Regional Spatial Distribution of Wind Power Plants to Minimize the Variability of Wind Energy Input into Power Supply Systems  

Science Conference Proceedings (OSTI)

In contrast to conventional power generation, wind energy is not a controllable resource because of its stochastic nature, and the cumulative energy input of several wind power plants into the electric grid may cause undesired fluctuations in the ...

Federico Cassola; Massimiliano Burlando; Marta Antonelli; Corrado F. Ratto

2008-12-01T23:59:59.000Z

260

EIA - International Energy Outlook 2008-Uranium Supplies Are...  

Gasoline and Diesel Fuel Update (EIA)

Uraninum Supplies Are Sufficient To Power Reactors Worldwide Through 2030 International Energy Outlook 2008 Uranium Supplies Are Sufficient To Power Reactors Worldwide Through 2030...

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Efficient and Reliable Reactive Power Supply and Consumption --Insights from an Integrated Program of Engineering and EconomicResearch  

Science Conference Proceedings (OSTI)

In 2005, the Federal Energy Regulatory Commission (FERC) began discussing regulatory policy for reactive-power procurement and pricing in competitive electricity markets. This paper summarizes findings from a unique, interdisciplinary program of public-interest research that lays a formal foundation for evaluating aspects of FERC staff recommendations and offers early insights that should be useful in guiding policy implementation, specifically by: (1) clarifying the consumers and economic characteristics of reactive power as a basis for creating incentives to appropriately price it, (2) defining specific challenges in creating a competitive market for reactive power as well as new tools needed to help ensure such a market functions efficiently, and (3) demonstrating the importance of accounting for the physical characteristics of the transmission network in planning for reactive power and avoiding the exercise of market power by suppliers.

Thomas, Robert J.; Mount, Timothy D.; Schuler, Richard; Schulze,William; Zimmerman, Ray; Alvarado, Fernando; Lesieutre, Bernard C.; Overholt, Philip N.; Eto, Joseph H.

2008-01-01T23:59:59.000Z

262

VOLUME 46 JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY NOVEMBER 2007 Supplying Baseload Power and Reducing Transmission Requirements by Interconnecting Wind Farms  

E-Print Network (OSTI)

Wind is the world’s fastest growing electric energy source. Because it is intermittent, though, wind is not used to supply baseload electric power today. Interconnecting wind farms through the transmission grid is a simple and effective way of reducing deliverable wind power swings caused by wind intermittency. As more farms are interconnected in an array, wind speed correlation among sites decreases and so does the probability that all sites experience the same wind regime at the same time. The array consequently behaves more and more similarly to a single farm with steady wind speed and thus steady deliverable wind power. In this study, benefits of interconnecting wind farms were evaluated for 19 sites, located in the midwestern United States, with annual average wind speeds at 80 m above ground, the hub height of modern wind turbines, greater than 6.9 m s ?1 (class 3 or greater). It was found that an average of 33 % and a maximum of 47 % of yearly averaged wind power from interconnected farms can be used as reliable, baseload electric power. Equally significant, interconnecting multiple wind farms to a common point and then connecting that point to a far-away city can allow the long-distance portion of transmission capacity to be reduced, for example, by 20 % with only a 1.6 % loss of energy. Although most parameters, such as intermittency, improved less than linearly as the number of interconnected sites increased, no saturation of the benefits

Cristina L. Archer; Mark; Z. Jacobson

2006-01-01T23:59:59.000Z

263

Markets to Facilitate Wind and Solar Energy Integration in the Bulk Power Supply: An IEA Task 25 Collaboration; Preprint  

Science Conference Proceedings (OSTI)

Wind and solar power will give rise to challenges in electricity markets regarding flexibility, capacity adequacy, and the participation of wind and solar generators to markets. Large amounts of wind power will have impacts on bulk power system markets and electricity prices. If the markets respond to increased wind power by increasing investments in low-capital, high-cost or marginal-cost power, the average price may remain in the same range. However, experiences so far from Denmark, Germany, Spain, and Ireland are such that the average market prices have decreased because of wind power. This reduction may result in additional revenue insufficiency, which may be corrected with a capacity market, yet capacity markets are difficult to design. However, the flexibility attributes of the capacity also need to be considered. Markets facilitating wind and solar integration will include possibilities for trading close to delivery (either by shorter gate closure times or intraday markets). Time steps chosen for markets can enable more flexibility to be assessed. Experience from 5- and 10-minute markets has been encouraging.

Milligan, M.; Holttinen, H.; Soder, L.; Clark, C.; Pineda, I.

2012-09-01T23:59:59.000Z

264

Internal Technical Report, Management Plan for Fluid Supply and Injection System for the Raft River 5 MW(e) Pilot Power Plant  

DOE Green Energy (OSTI)

This report details a plan for developing a fluid supply system for the First 5 MW(e) Pilot Power Plant at Raft River. The pilot plant has been specifically designed to use the medium-temperature geothermal water so common throughout the West. EG and G Idaho, Inc., the Department of Energy Raft River Rural Electric Co-op, the US Geological Survey (USGS) and the State of Idaho have worked together to develop a facility that will use an organic liquid as the working fluid. Four wells have been drilled in the Raft River Valley, about ten miles South of Malta, in southern Idaho. The completed well system will consist of seven wells: two conventional injection wells, three production wells, and a standby reserve well of each type. The additional three wells are to be drilled in FY-1978, in order to complete a coordinated test program before the First Pilot Power Plant is ready for operation. The system has been designed to meet the test-loop pilot plant's basic requirement: a 2450 gpm supply of geothermal fluid, at a nominal temperature of 290 F and with salinity of less than 5000 ppm. Injection of cooled geothermal fluid into the Raft River reservoir will also require a network of monitor wells. The Idaho Department of Water Resources (IDWR), USGS, EG and G Idaho, and the Department of Energy will jointly select sites for two 1500-foot and five 500-foot monitoring wells. This plan considers the work required to complete construction of the fluid supply system and obtain a preliminary check of its performance capability; the plan will discuss project management, costs, schedules, drilling, testing, environmental monitoring, and safety.

None

1978-01-09T23:59:59.000Z

265

MGE UPS SYSTEMS Inc | Open Energy Information  

Open Energy Info (EERE)

SYSTEMS Inc Place Costa Mesa, California Zip 92626 Product Makes power protection, conversion and distribtution products such as uninterruptible power supplies, inverters,...

266

Use of the NII to study impacts of new technologies and policies on supply and demand of electric power  

Science Conference Proceedings (OSTI)

This paper describes a proposal to use an implementation of client-server technology on the Internet for simulating a number of aspects of electric power production, distribution, and consumption within a wholly new regulatory, financing, operating, and control environment. This approach would use a large number of people to generate strategies and decisions, in a real-time context, needed to drive the simulation. A World Wide Web server would provide background information about the simulation for those who chose to participate as actors in one of supported roles. Roles would be based on activities associated with different business areas and would include utility manager, independent power producer (entrepreneur), electric power futures trader, electric power futures investor, electric power wheeler, industrial customer, commercial customer, and residential customer. The simulation program would run on a system of high-performance computers (parallel computer system) that communicate between each other on a high speed communications bus. These computers would also be the server systems for the client programs used by the actors. People who want to be actors would be required to register before being given a client program, as a way to have some control over the simulation results. Each role will have its corresponding client program with graphical user interface. Each client program will support a common view of the simulation results and a role specific view.

Munro, J.K. Jr. [Oak Ridge National Lab., TN (United States). Instrumentation and Controls Div.

1995-04-01T23:59:59.000Z

267

Supply Implications  

U.S. Energy Information Administration (EIA)

Supply Implications. European export gasoline volumes likely to remain unchanged Uncertainties are weighted towards less availability But the quality of the available ...

268

Personnel supply and demand issues in the nuclear power industry. Final report of the Nuclear Manpower Study Committee  

SciTech Connect

The anticipated personnel needs of the nuclear power industry have varied widely in recent years, in response to both increasing regulatory requirements and declining orders for new plants. Recent employment patterns in the nuclear energy field, with their fluctuations, resemble those of defense industries more than those traditionally associated with electric utilities. Reactions to the accident at Three Mile Island Unit 2 by industry and regulators have increased the demand for trained and experienced personnel, causing salaries to rise. Industry, for example, has established several advisory organizations like the Institute for Nuclear Power Operations (INPO). At the same time, the US Nuclear Regulatory Commission (NRC) has imposed many new construction and operating requirements in an effort to take advantage of lessons learned from the Three Mile Island incident and to respond to the perceived public interest in better regulation of nuclear power. Thus, at present, utilities, architect-engineer firms, reactor vendors, and organizations in the nuclear development community have heavy workloads.

Not Available

1981-01-01T23:59:59.000Z

269

Electric power supply and demand 1979 to 1988 for the contiguous United States as projected by the Regional Electric Reliability Councils in their April 1, 1979 long-range coordinated planning reports to the Department of Energy  

SciTech Connect

Information concerning bulk electric power supply and demand is summarized and reviewed. Electric-utility power-supply systems are composed of power sources, transmission and distribution facilities, and users of electricity. In the United States there are three such systems of large geographic extent that together cover the entire country. Subjects covered are: energy forecasts, peak demand forecasts, generating-capacity forecasts, purchases and sales of capacity, and transmission. Extensive data are compiled in 17 tables. Information in two appendices includes a general description of the Regional Electric Reliability Councils and US generating capacity as of June 30, 1979. 3 figures, 17 tables.

Savage, N.; Graban, W.

1979-12-01T23:59:59.000Z

270

SNAP-21 program, Phase II. Deep sea radioisotope-fueled thermoelectric generator power supply system. Final design description, 10-watt system  

DOE Green Energy (OSTI)

The SNAP-21 10-W system provides electrical power for use under the surface of the sea. It functions by converting the heat from a decaying radioisotope fuel into useful electrical energy. This heat energy is converted into electrical energy by a thermoelectric generator. Semiconductor-type thermoelectric materials, maintained in a temperature gradient, accomplish the conversion. The isotopic fuel supplies heat to the thermoelectric materials and sea water acts as the heat sink to maintain the temperature gradient. Other components are employed to increase efficiency and condition the electrical output to the desired form. The components performing these functions are enclosed in a pressure vessel which protects them from sea water pressure and exposure. No external inputs are required to maintain operation of the system. With this type of mechanically-static, unsupported operation, long life with no maintenance is achieved.

Wickenberg, R.F.; Harris, W.W.

1969-10-01T23:59:59.000Z

271

Low temperature rf sputtering deposition of (Ba, Sr) TiO{sub 3} thin film with crystallization enhancement by rf power supplied to the substrate  

SciTech Connect

The (Ba, Sr) TiO{sub 3} thin film deposited by radio frequency (rf) sputtering requires a high deposition temperature near 500 deg. C to realize a high relative dielectric constant over of 300. For example, the film deposited at 330 deg. C contains an amorphous phase and shows a low relative dielectric constant of less than 100. We found that rf power supplied not only to the (Ba, Sr) TiO{sub 3} sputtering target, but also to the substrate during the initial step of film deposition, enhanced the crystallization of the (Ba, Sr) TiO{sub 3} film drastically and realized a high dielectric constant of the film even at low deposition temperatures near 300 deg. C. The 50-nm-thick film with only a 10 nm initial layer deposited with the substrate rf biasing is crystallized completely and shows a high relative dielectric constant of 380 at the deposition temperature of 330 deg. C. The (Ba, Sr) TiO{sub 3} film deposited at higher temperatures (upwards of 400 deg. C) shows <110> preferred orientation, while the film deposited at 330 deg. C with the 10 nm initial layer shows a <111> preferred orientation on a <001>-oriented ruthenium electrode. The unit cell of (Ba, Sr) TiO{sub 3} (111) plane is similar to that of ruthenium (001) plane. We conclude that the rf power supplied to the substrate causes ion bombardments on the (Ba, Sr) TiO{sub 3} film surface, which assists the quasiepitaxial growth of (Ba, Sr) TiO{sub 3} film on the ruthenium electrode at low temperatures of less than 400 deg. C.

Yoshimaru, Masaki; Takehiro, Shinobu; Abe, Kazuhide; Onoda, Hiroshi [System LSI Research Division, Silicon Solution Company, Oki Electric Industry Co., Ltd., 550-1, Higashi-asakawa, Hachioji, Tokyo 193-8550 (Japan); Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan); Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan); Strategic Planning Office, Silicon Manufacturing Company, Oki Electric Industry Co., Ltd., 550-1, Higashi-asakawa, Hachioji, Tokyo 193-8550 (Japan)

2005-05-01T23:59:59.000Z

272

Dual turbine power plant and method of operating such plant, especially one having an HTGR steam supply  

SciTech Connect

A power plant including dual steam turbine-generators connected to pass superheat and reheat steam from a steam generator which derives heat from the coolant gas of a high temperature gas-cooled nuclear reactor is described. Associated with each turbine is a bypass line to conduct superheat steam in parallel with a high pressure turbine portion, and a bypass line to conduct superheat steam in parallel with a lower pressure turbine portion. Auxiliary steam turbines pass a portion of the steam flow to the reheater of the steam generator and drive gas blowers which circulate the coolant gas through the reactor and the steam source. Apparatus and method are disclosed for loading or unloading a turbine-generator while the other produces a steady power output. During such loading or unloading, the steam flows through the turbine portions are coordinated with the steam flows through the bypass lines for protection of the steam generator, and the pressure of reheated steam is regulated for improved performance of the gas blowers. 33 claims, 5 figures

Braytenbah, A.S.; Jaegtnes, K.O.

1977-02-15T23:59:59.000Z

273

Techno-economic analysis of using corn stover to supply heat and power to a corn ethanol plant - Part 2: Cost of heat and power generation systems  

Science Conference Proceedings (OSTI)

This paper presents a techno-economic analysis of corn stover fired process heating (PH) and the combined heat and power (CHP) generation systems for a typical corn ethanol plant (ethanol production capacity of 170 dam3). Discounted cash flow method was used to estimate both the capital and operating costs of each system and compared with the existing natural gas fired heating system. Environmental impact assessment of using corn stover, coal and natural gas in the heat and/or power generation systems was also evaluated. Coal fired process heating (PH) system had the lowest annual operating cost due to the low fuel cost, but had the highest environmental and human toxicity impacts. The proposed combined heat and power (CHP) generation system required about 137 Gg of corn stover to generate 9.5 MW of electricity and 52.3 MW of process heat with an overall CHP efficiency of 83.3%. Stover fired CHP system would generate an annual savings of 3.6 M$ with an payback period of 6 y. Economics of the coal fired CHP system was very attractive compared to the stover fired CHP system due to lower fuel cost. But the greenhouse gas emissions per Mg of fuel for the coal fired CHP system was 32 times higher than that of stover fired CHP system. Corn stover fired heat and power generation system for a corn ethanol plant can improve the net energy balance and add environmental benefits to the corn to ethanol biorefinery.

Mani, Sudhagar [University of Georgia; Sokhansanj, Shahabaddine [ORNL; Togore, Sam [U.S. Department of Energy; Turhollow Jr, Anthony F [ORNL

2010-03-01T23:59:59.000Z

274

A Very Low Power Consumption, Low Noise Analog Readout Chip for Capacitive Detectors with a Power Supply of 3.3 V  

Science Conference Proceedings (OSTI)

An analog frontend block of a VLSI readout chip, dedicated to high spatial resolution X or beta ray imaging, using capacitive silicon detectors, is described. In the present prototype, an ENC noise of 343 electrons at 0 pF with a noise slope of 28 electrons/pF ... Keywords: low noise amplifiers, low voltage/low power analog IC design

Y. Hu; J. D. Berst; M. Schaeffer

1998-11-01T23:59:59.000Z

275

Federal Energy Management Program: Covered Product Category:...  

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

Tips: Using Products More Efficiently Finding More Information Meeting Energy Efficiency Requirements for Uninterruptible Power Supplies Buy products that have the ENERGY STAR...

276

Testimony of R. E. Smalley to the Senate Committee on Energy and Natural Resources; Hearing on sustainable , low emission,  

E-Print Network (OSTI)

distance to market. Clean coal plants in Wyoming, device, an uninterruptible power supply capable of handling the entire needs of the owner for 24 hours

277

DOE specification: Flooded-type lead-acid storage batteries  

DOE Green Energy (OSTI)

This document contains a ``fill-in-the-blanks`` guide specification for procurement of flooded-type lead-acid storage batteries, for uninterruptible power supply applications.

NONE

1996-08-01T23:59:59.000Z

278

A Case Study of Modern PLC and LabVIEW Controls: Power Supply Controls for the ORNL ITER ECH Test Stand  

Science Conference Proceedings (OSTI)

Power Supply Controls are being developed at Oak Ridge National Laboratory (ORNL) to test transmission line components of the Electron Cyclotron Heating (ECH) system, with a focus on gyrotrons and waveguides, in support of the International Thermonuclear Experimental Reactor (ITER). The control is performed by several Programmable Logic Controllers (PLC s) located near the different equipment. A technique of Supervisory Control and Data Acquisition (SCADA) is presented to monitor, control, and log actions of the PLC s on a PC through use of Allen Bradley s Remote I/O communication interface coupled with an Open Process Control/Object Linking and Embedding [OLE] for Process Control (OPC) Server/Client architecture. The OPC data is then linked to a National Instruments (NI) LabVIEW system for monitoring and control. Details of the architecture and insight into applicability to other systems are presented in the rest of this paper. Future integration with an EPICS (Experimental Physics Industrial Control System) based mini-CODAC (Control, Data Access and Communication) SCADA system is under consideration, and integration considerations will be briefly introduced.

Barker, Alan M [ORNL; Killough, Stephen M [ORNL; Bigelow, Tim S [ORNL; White, John A [ORNL; Munro Jr, John K [ORNL

2011-01-01T23:59:59.000Z

279

PEP MAGNET POWER SUPPLY SYSTEMS  

E-Print Network (OSTI)

~es and their voltage and current requirements for from 5 toas The various low-voltage, low-current requirements will be

Jackson, L.T.

2010-01-01T23:59:59.000Z

280

The energy water nexus : increasing water supply by desalination integrated with renewable power and reducing water demand by corporate water footprinting.  

E-Print Network (OSTI)

??Growing populations and periodic drought conditions have exacerbated water stress in many areas worldwide. Consequently, it would be valuable to manage both supply and demand… (more)

Clayton, Mary Elizabeth

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Alternative Fuels Data Center: Electric Vehicle Supply Equipment (EVSE)  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Electric Vehicle Electric Vehicle Supply Equipment (EVSE) Rebate - Indiana Michigan Power to someone by E-mail Share Alternative Fuels Data Center: Electric Vehicle Supply Equipment (EVSE) Rebate - Indiana Michigan Power on Facebook Tweet about Alternative Fuels Data Center: Electric Vehicle Supply Equipment (EVSE) Rebate - Indiana Michigan Power on Twitter Bookmark Alternative Fuels Data Center: Electric Vehicle Supply Equipment (EVSE) Rebate - Indiana Michigan Power on Google Bookmark Alternative Fuels Data Center: Electric Vehicle Supply Equipment (EVSE) Rebate - Indiana Michigan Power on Delicious Rank Alternative Fuels Data Center: Electric Vehicle Supply Equipment (EVSE) Rebate - Indiana Michigan Power on Digg Find More places to share Alternative Fuels Data Center: Electric

282

Electricity supply chain coordination based on quantity discount contracts  

Science Conference Proceedings (OSTI)

Electricity supply chain coordination mechanism from the fuel supply, power generation and transmission to electricity consumption has become an important research topic to ease electric coal supply conflicts. In this paper, based on the quantity discount ...

Yu Dai; Hongming Yang; Jiajie Wu

2009-02-01T23:59:59.000Z

283

Power Quality Evaluation of 480-V, 2-MVA UPS Systems  

DOE Green Energy (OSTI)

A mobile 480-V, 2-MVA UPS System utilizing battery energy storage was installed at S and C Electric Company's Polymer Products Fabrication Building in Chicago, Illinois in May 1999 to provide uninterrupted power to the building for up to 15 seconds in the event of a voltage sag or momentary interruption in the local utility supply. Similar units can be applied at medium voltage through the application of a step-up transformer to provide momentary power disturbance ride through of up to 30 seconds for loads up to 15 MVA at system voltages ranging from 4.16 kV to 34.5 kV. A power quality evaluation of the installation was performed over a six-month period from July 1999 to early January 2000. This paper describes the details and results of this power quality evaluation, which involved two phases. Phase I involved the collection and review of power disturbance data and the effects on process equipment, while Phase II involved power quality monitoring of utility source and building load voltages and currents over a period of six months. Review of power disturbance data and equipment power-disturbance ride-through characteristics during Phase I of the project indicated that the polymer fabrication process in the building is affected by the tripping of motors driving hydraulic pumps for the thermal set molding machines. The tripping of these motors may have resulted in direct production losses in 1998 of approximately $468,000. The monitoring conducted during Phase II of the project showed that the PureWave UPS operated as intended during 12 utility voltage sag events to protect the building's load against momentary power disturbances. In addition, the unit operated successfully during many staged interruptions involving opening of a source-side circuit breaker.

CAMM,E.H.; COREY,GARTH P.; ROBERTS,B.

2000-06-21T23:59:59.000Z

284

D0 Experimental Area Emergency Backup Power and Generator Test  

SciTech Connect

The DO experimental area has a generator designated as emergency power. This generator provides power for critical loads and starts automatically upon loss of commercial power. This note concerns the testing of this generator. A list of loads is attached to this note. One of the loads on the emergency power grid is a 10KVA Uninterruptable Power Supply(UPS). The UPS powers the cryogenic controls and Oxygen deficiency hazard equipment(ODH) and has a minimum rating of 20 minutes while on its batteries(to cover the transfer time to/from the emergency generator). Jan 23,1991 at 1640 hrs this system was tested under the supervision of the Terry Ross, Marv Johnson, Dan Markley, Kelly Dixon, and John Urbin. The power feeder to the emergency power grid at DO was disconnected. The generator responded immediately and was supplying power to the emergency power grid in less than 10 seconds. During the 10 seconds that there was no power on the emergency grid the UPS switched on its inverter and provided uninterrupted power to the cryogenic control system and the ODH system. All of the motorized equipment shut off instrument air compressor, vacuum pumps 1 and 2, insulating vacuum blower, glycol cooling pumps, cooling tower fan, and Exhaust Fan 7(EF7). Upon reengagement of power to the grid from the emergency generator, all of the motorized loads started back up with the exception of vacuum pumps 1 and 2, and the UPS inverter turned off. Vacuum pumps 1 and 2 were delay started 20 seconds by the cryogenic control system as not to cause too large of a surge in power by all of the inductive loads starting at once. The DO building elevator which is also on emergency power was test run while the emergency generator was on line with all other emergency loads. The emergency generator current was 140 amps with all loads on line and running except the building elevator. This load of 140 amps is 27% of the generator's capacity. The cryogenic control and ODH system continued to function properly throughout the entire test due to the UPS responding correctly to each power situation. The cryogenic control system isolated both the Utility(UV) and insulating(IV) vacuum systems as to preserve their vacua while the pumps were off. Once the vacuum pumps were reestablished the IV and UV vacua were put back on line to their respective pumps by the cryogenic control system. The instrument air is backed up by a high pressure trailer, regulated down to instrument air pressure and switches automatically on line through a check valve. During the time that the instrument air compressor was off, instrument air never went below 80 psig (high pressure regulator setting).

Markley, D.; /Fermilab

1991-01-24T23:59:59.000Z

285

D0 Experimental Area Emergency Backup Power and Generator Test  

SciTech Connect

The DO experimental area has a generator designated as emergency power. This generator provides power for critical loads and starts automatically upon loss of commercial power. This note concerns the testing of this generator. A list of loads is attached to this note. One of the loads on the emergency power grid is a 10KVA Uninterruptable Power Supply(UPS). The UPS powers the cryogenic controls and Oxygen deficiency hazard equipment(ODH) and has a minimum rating of 20 minutes while on its batteries(to cover the transfer time to/from the emergency generator). Jan 23,1991 at 1640 hrs this system was tested under the supervision of the Terry Ross, Marv Johnson, Dan Markley, Kelly Dixon, and John Urbin. The power feeder to the emergency power grid at DO was disconnected. The generator responded immediately and was supplying power to the emergency power grid in less than 10 seconds. During the 10 seconds that there was no power on the emergency grid the UPS switched on its inverter and provided uninterrupted power to the cryogenic control system and the ODH system. All of the motorized equipment shut off instrument air compressor, vacuum pumps 1 and 2, insulating vacuum blower, glycol cooling pumps, cooling tower fan, and Exhaust Fan 7(EF7). Upon reengagement of power to the grid from the emergency generator, all of the motorized loads started back up with the exception of vacuum pumps 1 and 2, and the UPS inverter turned off. Vacuum pumps 1 and 2 were delay started 20 seconds by the cryogenic control system as not to cause too large of a surge in power by all of the inductive loads starting at once. The DO building elevator which is also on emergency power was test run while the emergency generator was on line with all other emergency loads. The emergency generator current was 140 amps with all loads on line and running except the building elevator. This load of 140 amps is 27% of the generator's capacity. The cryogenic control and ODH system continued to function properly throughout the entire test due to the UPS responding correctly to each power situation. The cryogenic control system isolated both the Utility(UV) and insulating(IV) vacuum systems as to preserve their vacua while the pumps were off. Once the vacuum pumps were reestablished the IV and UV vacua were put back on line to their respective pumps by the cryogenic control system. The instrument air is backed up by a high pressure trailer, regulated down to instrument air pressure and switches automatically on line through a check valve. During the time that the instrument air compressor was off, instrument air never went below 80 psig (high pressure regulator setting).

Markley, D.; /Fermilab

1991-01-24T23:59:59.000Z

286

OUT Success Stories: Battery Electricity Storage for Quality Power  

DOE Green Energy (OSTI)

A 3.5-megawatt valve-regulated lead-acid (VRLA) battery system installed at a lead recycling plant in California provides one hour of energy storage for both peak-shaving and uninterruptible power. It incorporates improvements in battery materials, manufacturing processes, and quality control.

Recca, L.

2000-08-31T23:59:59.000Z

287

electricity supply | OpenEI  

Open Energy Info (EERE)

supply supply Dataset Summary Description The National Renewable Energy Laboratory (NREL) publishes a wide selection of data and statistics on energy power technologies from a variety of sources (e.g. EIA, Oak Ridge National Laboratory, Sandia National Laboratory, EPRI and AWEA). In 2006, NREL published the 4th edition, presenting, among other things, data on the U.S. electricity supply. Source NREL Date Released March 05th, 2006 (8 years ago) Date Updated Unknown Keywords electricity supply NREL Data application/vnd.ms-excel icon Electricity Supply (13 worksheets) (xls, 1.2 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment

288

Effects of the drought on California electricity supply and demand  

E-Print Network (OSTI)

DEMAND . . . .Demand for Electricity and Power PeakDemand . . • . . ELECTRICITY REQUIREMENTS FOR AGRICULTUREResults . . Coriclusions ELECTRICITY SUPPLY Hydroelectric

Benenson, P.

2010-01-01T23:59:59.000Z

289

Why Supply Chain  

E-Print Network (OSTI)

Why supply chain explains the importance of supply chains. It includes an introduction to ERP as designed by SAP.

Datta, Shoumen

2000-01-01T23:59:59.000Z

290

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

Natural Gas Prices Through Electricity Supply Diversification Testimony Prepared for a Hearing on Power Generation

Wiser, Ryan

2005-01-01T23:59:59.000Z

291

Fuel Industry Response to Power Industry Environmental Pressures: An Analysis of Risk and Investment in the Coal Supply Chain and Na tural Gas Industry  

Science Conference Proceedings (OSTI)

This report examines the question of how mounting environmental pressures on coal-fired generation will impact investment in fuel supply and transportation. If destined for demise, are coal companies cutting back investments or exiting the business? Alternatively, are natural gas companies gearing up for a financial boom? The study specifically investigates a "clean coal" case of greatly tightened NOx and SO2 limits as well as a "low coal" case of much reduced coal use to meet CO2 control objectives.

1999-07-02T23:59:59.000Z

292

1992 Conversion Resources Supply Document  

SciTech Connect

In recent years conservation of electric power has become an integral part of utility planning. The 1980 Pacific Northwest Electric Power Planning and Conservation Act (Northwest Power Act) requires that the region consider conservation potential in planning acquisitions of resources to meet load growth. The Bonneville Power Administration (BPA) developed its first estimates of conservation potential in 1982. Since that time BPA has updated its conservation supply analyses as a part of its Resource Program and other planning efforts. Major updates were published in 1985 and in January 1990. This 1992 document presents updated supply curves, which are estimates of the savings potential over time (cumulative savings) at different cost levels of energy conservation measures (ECMs). ECMs are devices, pieces of equipment, or actions that increase the efficiency of electricity use and reduce the amount of electricity used by end-use equipment.

Not Available

1992-03-01T23:59:59.000Z

293

Grid Interactive Quality AC Power Supply With Switching Arm Based Integrated Magnetics For Dynamically Controlled Interconnection Among Multiple Sources And Loads.  

E-Print Network (OSTI)

??The extensive use of nonlinear loads in today’s world has inspired considerable research interest in the area of power quality improvement. This thesis proposes an… (more)

Roy, Sudhin

2010-01-01T23:59:59.000Z

294

Comparison of Test Procedures and Energy Efficiency Criteria in Selected International Standards & Labeling Programs for Copy Machines, External Power Supplies, LED Displays, Residential Gas Cooktops and Televisions  

E-Print Network (OSTI)

Efficiency Regulations: Standby Power Consumption. ” http://Management Corporation. 2011. “e-Standby Program. ” http://formulas – in addition to standby and off-mode. The other

Zheng, Nina

2013-01-01T23:59:59.000Z

295

Power applications of high-temperature superconductivity: Variable speed motors, current switches, and energy storage for end use  

DOE Green Energy (OSTI)

The objective of this project is to conduct joint research and development activities related to certain electric power applications of high-temperature superconductivity (HTS). The new superconductors may allow development of an energy-efficient switch to control current to variable speed motors, superconducting magnetic energy storage (SMES) systems, and other power conversion equipment. Motor types that were considered include induction, permanent magnet, and superconducting ac motors. Because it is impractical to experimentally alter certain key design elements in radial-gap motors, experiments were conducted on an axial field superconducting motor prototype using 4 NbTi magnets. Superconducting magnetic energy storage technology with 0.25--5 kWh stored energy was studied as a viable solution to short duration voltage sag problems on the customer side of the electric meter. The technical performance characteristics of the device wee assembled, along with competing technologies such as active power line conditioners with storage, battery-based uninterruptible power supplies, and supercapacitors, and the market potential for SMES was defined. Four reports were prepared summarizing the results of the project.

Hawsey, R.A. [Oak Ridge National Lab., TN (United States); Banerjee, B.B.; Grant, P.M. [Electric Power Research Inst., Palo Alto, CA (United States)

1996-08-01T23:59:59.000Z

296

Petroleum Supply Annual  

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

0.PDF Table 10. PAD District 4 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2011 (Thousand Barrels per Day) Commodity Supply Disposition...

297

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 Table 21. PAD District 5 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition...

298

Petroleum Supply Annual  

Annual Energy Outlook 2012 (EIA)

TABLE8.PDF Table 8. PAD District 3 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2011 (Thousand Barrels per Day) Commodity Supply Disposition...

299

Petroleum Supply Annual  

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

TABLE4.PDF Table 4. PAD District 1 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2011 (Thousand Barrels per Day) Commodity Supply Disposition...

300

Petroleum Supply Monthly  

Annual Energy Outlook 2012 (EIA)

May 2013 Table 21. PAD District 5 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, May 2013 (Thousand Barrels) Commodity Supply Disposition Ending...

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Petroleum Supply Monthly  

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

5 May 2013 Table 19. PAD District 4 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, May 2013 (Thousand Barrels per Day) Commodity Supply Disposition...

302

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 Table 11. PAD District 2 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply...

303

Petroleum Supply Annual  

Gasoline and Diesel Fuel Update (EIA)

TABLE6.PDF Table 6. PAD District 2 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2011 (Thousand Barrels per Day) Commodity Supply Disposition...

304

Petroleum Supply Monthly  

Annual Energy Outlook 2012 (EIA)

December 2011 Table 13. PAD District 3 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition...

305

july/august 2005 IEEE power & energy magazine 491540-7977/05/$20.002005 IEEE SOUTH AMERICA IS FACING IMPORTANT CHALLENGES IN ELECTRICITY SUPPLY  

E-Print Network (OSTI)

for thermal power plants in case natural gas was not available. In mid-2003, the government jointly basins. Thermal generation includes nuclear, natural gas, coal, and diesel plants. The country is fully), with voltages ranging from 230­765 kV ac, plus two 600-kV dc links connecting the binational Itaipu power plant

Catholic University of Chile (Universidad Católica de Chile)

306

Supplying Renewable Energy to Deferrable Loads: Algorithms and Economic Analysis  

E-Print Network (OSTI)

Supplying Renewable Energy to Deferrable Loads: Algorithms and Economic Analysis Anthony in order to mitigate the unpredictable and non-controllable fluctuation of renewable power supply. We cast for optimally supplying renewable power to time-flexible electricity loads in the presence of a spot market

Oren, Shmuel S.

307

THE ECONOMICS OF CONSERVED-ENERGY "SUPPLY" CURVES  

E-Print Network (OSTI)

PWP-028 THE ECONOMICS OF CONSERVED-ENERGY "SUPPLY" CURVES Steven Stoft April 1995 This paper "SUPPLY" CURVES Steven Stoft April 1995 #12;Table of Contents The Economics of Conserved-Energy "Supply is part of the working papers series of the Program on Workable Energy Regulation (POWER). POWER

California at Berkeley. University of

308

Electric Vehicle Supply Equipment (EVSE) Test Report: Blink  

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

1,500 2,000 2,500 3,000 Time (s) Power (Watts) Charge Start EVSE Power In EVSE Power Out Electric Vehicle Supply Equipment (EVSE) Test Report: Blink EVSE Tested Blink Residential...

309

Electric Vehicle Supply Equipment (EVSE) Test Report: SPX  

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

1,500 2,000 2,500 3,000 Time (s) Power (Watts) Charge Start EVSE Power In EVSE Power Out Electric Vehicle Supply Equipment (EVSE) Test Report: SPX EVSE Tested SPX Residential...

310

Assessing Vehicle Electricity Demand Impacts on California Electricity Supply  

E-Print Network (OSTI)

the availability of hydro power has the greatest impact oncontribute to a redesigned hydro power supply system in thein 2050 (like all non-hydro power plants in this analysis,

McCarthy, Ryan W.

2009-01-01T23:59:59.000Z

311

Southwestern Power Administration  

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

disconnect switches, microprocessor relays, power transformers, surge arresters, and transformer bushings information resources management equipment and supplies such as monitors,...

312

UPS Mitigation of Oscillatory and Impulsive Transients  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study presents the results of tests performed at the EPRI Power Electronics Applications Center (PEAC) to determine how well uninterruptible power supplies (UPSs) suppress switching and lightning-induced transients.

2003-12-31T23:59:59.000Z

313

System and method for advanced power management  

DOE Patents (OSTI)

A power management system is provided that includes a power supply means comprising a plurality of power supply strings, a testing means operably connected to said plurality of power supply strings for evaluating performance characteristics of said plurality of power supply strings, and a control means for monitoring power requirements and comprising a switching means for controlling switching of said plurality of power supply strings to said testing means.

Atcitty, Stanley (Albuquerque, NM); Symons, Philip C. (Surprise, AZ); Butler, Paul C. (Albuquerque, NM); Corey, Garth P. (Albuquerque, NM)

2009-07-28T23:59:59.000Z

314

A fuzzy-based approach for strategic choices in electric energy supply. The case of a Swiss power provider on the eve of electricity market opening  

Science Conference Proceedings (OSTI)

Risk evaluation and strategic choice has become very complex for power providers, because of the growing number of uncertain parameters involved, such as energy market prices, water inflow, and demand. The lack of information and the absence of the decision ... Keywords: Electricity markets, Fuzzy sets theory, Strategic choices

Gustave Nguene Nguene; Matthias Finger

2007-02-01T23:59:59.000Z

315

Power Right. Power Smart. Efficient Computer Power Supplies and...  

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

and cost savings. Be sure to input the actual price you pay for your electricity. With electricity rates soaring in some areas, the default value, 8.7 cents (0.087)kWh, may be...

316

Petroleum Supply Monthly  

U.S. Energy Information Administration (EIA)

Energy Information Administration/Petroleum Supply Monthly, October 2011 11 Table 4. U.S. Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum ...

317

Petroleum Supply Monthly  

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

Table 12. PAD District 2 - Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January-May 2013 (Thousand Barrels per Day) Commodity Supply...

318

Biofuel Supply Chain Infrastructure  

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

Research Areas Freight Flows Passenger Flows Supply Chain Efficiency Transportation: Energy Environment Safety Security Vehicle Technologies The Infrastructure Challenge of...

319

Ensuring a Reliable Supply of Medical Radioisotopes | National...  

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

Ensuring a Reliable Supply of Medical Radioisotopes | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy...

320

America`s energy supply  

Science Conference Proceedings (OSTI)

The gist of the paper is to demonstrate that the economical utilization of the country`s energy supply requires generating electric power wherever hydraulic or fuel energy is available, and collecting the power electrically, just as it is distributed electrically. In the first section a short review of the country`s energy supply in fuel and water power is given, and it is shown that the total potential hydraulic energy of the country is about equal to the total utilized fuel energy. In the second section it is shown that the modern synchronous station is necessary for large hydraulic powers, but the solution of the problem of the economic development of the far more numerous smaller water powers is the adoption of the induction generator. However, the simplicity of the induction generator station results from the relegation of all the functions of excitation, regulation, and control to the main synchronous station. The economic advantage of the induction generator station is that its simplicity permits elimination of most of the hydraulic development by using, instead of one large synchronous station, a number of induction generator stations and collecting their power electrically. The third section considers the characteristics of the induction generator and the induction-generator station, and its method of operation, and discusses the condition of ``dropping out of step of the induction generator`` and its avoidance. In the appendix the corresponding problem is pointed out with reference to fuel power, showing that many millions of kilowatts of potential power are wasted by burning fuel and thereby degrading its energy, that could be recovered by interposing simple steam turbine induction generators between the boiler and the steam heating systems, and collecting their power electrically.

Steinmetz, C.P.

1998-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

--No Title--  

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

The Proposed Activity design change E-DCF-F-03017 is to provide electrical power and Uninterruptible Power Supply (UPS) to the Delta V Distributed Control System (DCS) in 241-062F....

322

--No Title--  

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

Proposed Activity design change E-DCF-F-03017 is to provide electrical power and Uninterruptible Power Supply (UPS) to the Delta V Distributed Control System (DCS) in 241-062F....

323

CX-005864: Categorical Exclusion Determination  

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

Provide Power and Uninterruptible Power Supply System in 241-062FCX(s) Applied: B2.2Date: 03/10/2011Location(s): Aiken, South CarolinaOffice(s): Environmental Management, Savannah River Operations Office

324

South Carolina | Department of Energy  

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

Exclusion Determination Provide Power and Uninterruptible Power Supply System in 241-062F CX(s) Applied: B2.2 Date: 03102011 Location(s): Aiken, South Carolina Office(s):...

325

Supply Curves of Conserved Energy  

SciTech Connect

Supply curves of conserved energy provide an accounting framework that expresses the potential for energy conservation. The economic worthiness of a conservation measure is expressed in terms of the cost of conserved energy, and a measure is considered economical when the cost of conserved energy is less than the price of the energy it replaces. A supply curve of conserved energy is independent of energy prices; however, the economical reserves of conserved energy will depend on energy prices. Double-counting of energy savings and error propagation are common problems when estimating conservation potentials, but supply curves minimize these difficulties and make their consequences predictable. The sensitivity of the cost of conserved energy is examined, as are variations in the optimal investment strategy in response to changes in inputs. Guidelines are presented for predicting the consequences of such changes. The conservation supply curve concept can be applied to peak power, water, pollution, and other markets where consumers demand a service rather than a particular good.

Meier, Alan Kevin

1982-05-01T23:59:59.000Z

326

Supply | OpenEI  

Open Energy Info (EERE)

Supply Supply Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 11, and contains only the reference case. The dataset uses million barrels per day. The data is broken down into crude oil, other petroleum supply, other non petroleum supply and liquid fuel consumption. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO disposition EIA liquid fuels Supply Data application/vnd.ms-excel icon AEO2011: Liquid Fuels Supply and Disposition- Reference Case (xls, 117 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035 License

327

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

Natural Gas Prices Through Electricity Supply Diversification Testimony Prepared for a Hearing on Power Generation Resource Incentives &

Wiser, Ryan

2005-01-01T23:59:59.000Z

328

Building Bio-based Supply Chains: Theoretical Perspectives on Innovative Contract Design  

E-Print Network (OSTI)

production, primarily for co- firing electricity generationseeks a biomass supply for co-firing a power plant to comply

Endres, Jody M.; Endres, A. Bryan; Stoller, Jeremy J.

2013-01-01T23:59:59.000Z

329

Oil and Gas Supply Module  

Annual Energy Outlook 2012 (EIA)

Onshore Lower 48 Oil and Gas Supply Submodule, Offshore Oil and Gas Supply Submodule, Oil Shale Supply Submodule, and Alaska Oil and Gas Supply Submodule. A detailed description of...

330

Electricity Supply Sector  

U.S. Energy Information Administration (EIA)

Electricity Supply Sector Part 1 of 6 Supporting Documents Sector-Specific Issues and Reporting Methodologies Supporting the General Guidelines for the Voluntary

331

Supplying Water Social Studies  

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

Handbook of Engaged Learning Projects SUPPLYING OUR WATER NEEDS: Africa Project Summary Scenario Student Pages References Index SubjectContent Area: World CulturesSocial Studies...

332

Petroleum Supply Monthly  

U.S. Energy Information Administration (EIA)

Energy Information Administration/Petroleum Supply Monthly, October 2011 49 Table 37. Imports of Crude Oil and Petroleum Products by PAD District, ...

333

ICT Supply Chain Risk Management  

Science Conference Proceedings (OSTI)

... ICT Supply Chain Risk Management Manager's Forum ... ICT Supply Chain Risk Management National Institute of Standards and Technology Page 6. ...

2013-06-04T23:59:59.000Z

334

Accuracy of Petroleum Supply Data  

Reports and Publications (EIA)

Accuracy of published data in the Weekly Petroleum Status Report, the Petroleum Supply Monthly, and the Petroleum Supply Annual.

Tammy G. Heppner

2009-02-27T23:59:59.000Z

335

Building Technologies Office: Battery Chargers and External Power...  

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

Battery Chargers and External Power Supplies Framework Document Public Meeting to someone by E-mail Share Building Technologies Office: Battery Chargers and External Power Supplies...

336

Reducing the Environmental Footprint and Economic Costs of Automotive Manufacturing through an Alternative Energy Supply  

E-Print Network (OSTI)

fuel cell power plants use natural gas as their fuel tothe natural gas supplied to the fuel cell power plant is

Yuan, Chris; Dornfeld, David

2009-01-01T23:59:59.000Z

337

Highly efficient pulsed power supply system with a two-stage LC generator and a step-up transformer for fast capillary discharge soft x-ray laser at shorter wavelength  

SciTech Connect

Highly efficient and compact pulsed power supply system for a capillary discharge soft x-ray laser (SXRL) has been developed. The system consists of a 2.2 {mu}F two-stage LC inversion generator, a 2:54 step-up transformer, a 3 nF water capacitor, and a discharge section with a few tens of centimeter length capillary. Adoption of the pulsed transformer in combination with the LC inversion generator enables us to use only one gap switch in the circuit for charging the water capacitor up to about 0.5 MV. Furthermore, step-up ratio of a water capacitor voltage to a LC inversion generator initial charging voltage is about 40 with energy transfer efficiency of about 50%. It also leads to good reproducibility of a capillary discharge which is necessary for lasing a SXRL stably. For the study of the possibility of lasing a SXRL at shorter wavelength in a small laboratory scale, high-density and high-temperature plasma column suitable for the laser can be generated relatively easily with this system.

Sakai, Yusuke; Takahashi, Shnsuke; Komatsu, Takanori; Song, Inho; Watanabe, Masato; Hotta, Eiki [Department of Energy Sciences, Tokyo Institute of Technology, 4259-J2-35, Nagatsuta, Midori-ku, Yokohama 226-8502 (Japan)

2010-01-15T23:59:59.000Z

338

Prebake Potline Restart after Power Supply Interruption  

Science Conference Proceedings (OSTI)

Cryoscopic Data for Hall-Héroult Bath Containing Magnesium Fluoride, Calcium Fluoride, Potassium Cryolite, and Sodium Chloride · Current Distribution and ...

339

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 19. PAD District 4 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 393 - - - - 330 -111 -46 4 562 0 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 406 0 2 15 -333 - - 0 20 9 61 Pentanes Plus .................................................. 58 0 - - - -33 - - 0 6 9 10 Liquefied Petroleum Gases .............................. 348 - - 2 15 -299 - -

340

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 23. PAD District 5 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 1,197 - - - - 1,186 - -47 -4 2,340 0 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 69 0 14 4 - - - -60 83 20 43 Pentanes Plus .................................................. 32 0 - - - - - - -1 26 2 5 Liquefied Petroleum Gases .............................. 37 - - 14 4 - - - -59

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Petroleum Supply Monthly  

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

6 6 September 2013 Table 20. PAD District 4 - Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 511 - - - - 289 -169 -49 4 579 0 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 316 0 13 11 -264 - - 2 16 15 44 Pentanes Plus .................................................. 50 0 - - 0 -38 - - 0 6 13 -7 Liquefied Petroleum Gases ..............................

342

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 7. PAD District 1 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 24 - - - - 854 -10 42 -28 935 3 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 42 0 27 67 119 - - -30 26 1 259 Pentanes Plus .................................................. 7 0 - - - - - - 0 - 0 7 Liquefied Petroleum Gases .............................. 35 - - 27 67 119 - - -30 26

343

Petroleum Supply Monthly  

Annual Energy Outlook 2012 (EIA)

Ending Stocks by PAD District, December 2011 (Thousand Barrels, Except Where Noted) Process PAD Districts U.S. Total 1 2 3 4 5 Total Daily Average Supply Field Production...

344

Improving supply chain resilience  

E-Print Network (OSTI)

Due to the global expansion of Company A's supply chain network, it is becoming more vulnerable to many disruptions. These disruptions often incur additional costs; and require time to respond to and recover from these ...

Leung, Elsa Hiu Man

2009-01-01T23:59:59.000Z

345

European supply chain study  

E-Print Network (OSTI)

Introduction: Supply chain management has been defined as, "..a set of approaches utilized to efficiently integrate suppliers, manufacturers, warehouses and stores, so that merchandise is produced and distributed at the ...

Puri, Mohitkumar

2009-01-01T23:59:59.000Z

346

Petroleum Supply Monthly  

Annual Energy Outlook 2012 (EIA)

and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil 6...

347

Fuel Cells for Backup Power in Telecommunications Facilities (Fact Sheet)  

DOE Green Energy (OSTI)

Telecommunications providers rely on backup power to maintain a constant power supply, to prevent power outages, and to ensure the operability of cell towers, equipment, and networks. The backup power supply that best meets these objectives is fuel cell technology.

Not Available

2009-04-01T23:59:59.000Z

348

2007 Fuel Cell Technologies Market Report  

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

membrane R&D research and development RD&D research, development, and demonstration SOFC solid oxide fuel cell UPS uninterruptible power supply USFCC U.S. Fuel Cell Council 2...

349

DOE specification: Valve-regulated type lead-acid storage batteries  

DOE Green Energy (OSTI)

This document contains a ``fill-in-the-blanks`` guide specification for procurement of sealed valve-regulated type lead-acid storage batteries, for uninterruptible power supply applications.

NONE

1996-08-01T23:59:59.000Z

350

ICEPT Working Paper Comparison of Fuel Cell and Combustion Micro-CHP under Future Residential  

E-Print Network (OSTI)

&D Research and Development SOFC Solid Oxide Fuel Cell UPS Uninterruptible Power Supply #12;The Nordic with the Danish advancement in wind energy research and research on SOFC. Norway had special knowledge on advanced

351

UPS Maintenance and Application Guide: Revision of TR-100491  

Science Conference Proceedings (OSTI)

This guide provides maintenance recommendations to plant personnel involved in the reliable operation of uninterruptible power supply (UPS) systems. It identifies potential failure modes, basic troubleshooting techniques, and preventive measures, as well as a basic background description of UPS systems.

2002-12-03T23:59:59.000Z

352

UPS-Substation (TM): Evaluation, Conceptual Design and Generic Specification  

Science Conference Proceedings (OSTI)

In general terms, the UPS-Substation(TM) is an uninterruptible power supply (UPS) at the substation level. This report summarizes determining application requirements, developing conceptual designs and cost estimates, and assessing potential market size based on application.

1999-09-21T23:59:59.000Z

353

DOE-SPEC-3018-96  

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

DOE Specification, Flooded-Type Lead-Acid Storage Batteries Canceled This specification defines requirements for flooded-type, lead-acid storage batteries and accessory equipment for [general purpose] [uninterruptible power supply (UPS)] [ ] applications, for [ ], located in [

354

Petroleum Supply Monthly  

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

6 6 September 2013 Table 10. PAD District 2 - Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 366,285 - - - - 501,418 159,175 -109,633 -12,929 918,349 11,825 0 102,610 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 122,918 -4,579 37,556 21,926 4,444 - - 15,132 24,244 34,819 108,070 58,830 Pentanes Plus ..................................................

355

Petroleum Supply Monthly  

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

20 20 September 2013 Table 14. PAD District 3 - Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil 6 ............................................................ 1,188,751 - - - - 1,015,091 -112,708 94,064 20,399 2,158,191 6,608 0 882,207 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 440,766 -88 123,986 10,625 46,383 - - 16,960 76,972 72,880 454,860 114,138 Pentanes Plus ..................................................

356

Petroleum Supply Monthly  

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

September 2013 Table 2. U.S. Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 2,003,948 - - - - 2,123,490 65,265 6,899 4,157,486 28,318 0 1,067,149 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 686,936 -4,909 195,516 47,812 - - 36,219 127,051 118,364 643,721 189,672 Pentanes Plus .................................................. 92,842 -4,909 - - 10,243 - -

357

Petroleum Supply Annual  

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

1.PDF 1.PDF Table 11. PAD District 5 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 36,593 - - - - 31,429 - 4,534 890 71,666 - 0 55,877 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 2,154 -11 1,013 192 - - - -786 2,587 629 918 3,544 Pentanes Plus .................................................. 1,013 -11 - - - - - - -35 842 110 85 36 Liquefied Petroleum Gases ..............................

358

Petroleum Supply Annual  

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

TABLE7.PDF TABLE7.PDF Table 7. PAD District 3 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil 6 ............................................................ 109,919 - - - - 142,073 -20,272 -3,481 6,003 222,236 - 0 858,776 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 43,678 -17 9,648 1,838 7,546 - - -2,299 8,340 4,663 51,989 65,215 Pentanes Plus .................................................. 4,840 -17 - - 1,688 -3,010 - -

359

Petroleum Supply Monthly  

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

4 4 September 2013 Table 8. PAD District 1 - Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 32 - - - - 843 -1 230 8 1,061 35 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 71 0 45 40 77 - - 1 16 10 205 Pentanes Plus .................................................. 12 0 - - 1 0 - - 0 0 2 9 Liquefied Petroleum Gases ..............................

360

Petroleum Supply Monthly Archives  

Gasoline and Diesel Fuel Update (EIA)

Petroleum Supply Monthly Petroleum Supply Monthly Petroleum Supply Monthly Archives With Data for December 2011 | Release Date: February 29, 2012 Changes to Table 26. "Production of Crude Oil by PAD District and State": Current State-level data are now included in Table 26, in addition to current U.S. and PAD District sums. State offshore production for Louisiana, Texas, Alaska, and California, which are included in the State totals, are no longer reported separately in a "State Offshore Production" category. Previously, State-level values lagged 2 months behind the U.S. and PAD District values. Beginning with this publication, they will be on the same cycle. Also included in this publication are two additional pages for Table 26 that provide October and November data. With the release of

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 3. U.S. Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 5,877 - - - - 8,716 83 -218 14,841 53 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 2,351 -20 372 252 - - -417 566 206 2,600 Pentanes Plus .................................................. 296 -20 - - 78 - - 37 172 71 75 Liquefied Petroleum Gases .............................. 2,055 - - 372 174 - - -454 394 135 2,525

362

Petroleum Supply Monthly  

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

8 8 September 2013 Table 22. PAD District 5 - Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 300,668 - - - - 297,837 - 31,342 -3,713 633,292 267 0 52,719 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 17,739 -73 18,288 1,401 - - - 3,536 17,170 3,791 12,858 8,270 Pentanes Plus .................................................. 7,914

363

Petroleum Supply Annual  

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

1. TABLE1.PDF 1. TABLE1.PDF Table 1. U.S. Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 190,109 - - - - 264,348 6,359 12,794 445,596 2,425 0 1,039,424 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 73,905 -587 13,044 6,935 - - -11,335 15,883 8,313 80,436 118,039 Pentanes Plus .................................................. 8,824 -587 - - 1,699 - - -805 4,946 2,754 3,041 16,791 Liquefied Petroleum Gases

364

Petroleum Supply Annual  

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

2.PDF 2.PDF Table 12. PAD District 5 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 1,180 - - - - 1,014 - 146 29 2,312 - 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 69 0 33 6 - - - -25 83 20 30 Pentanes Plus .................................................. 33 0 - - - - - - -1 27 4 3 Liquefied Petroleum Gases .............................. 37 - - 33 6 - - - -24 56 17 27 Ethane/Ethylene

365

Petroleum Supply Monthly  

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

September 2013 Table 1. U.S. Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 233,810 - - - - 237,344 8,334 7,688 468,825 2,975 0 1,067,149 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 81,196 -552 19,023 4,020 - - 3,027 16,794 13,937 69,929 189,672 Pentanes Plus .................................................. 11,167 -552 - - 772 - - -700 5,666 2,989 3,432 18,036 Liquefied Petroleum Gases

366

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 1. U.S. Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 182,188 - - - - 270,188 2,576 -6,767 460,074 1,646 0 1,026,829 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 72,869 -607 11,545 7,801 - - -12,921 17,534 6,391 80,604 128,709 Pentanes Plus .................................................. 9,170 -607 - - 2,421 - - 1,146 5,321 2,200 2,317 17,598 Liquefied Petroleum Gases

367

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 17. PAD District 4 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 12,175 - - - - 10,226 -3,426 -1,436 132 17,407 1 0 15,969 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 12,584 -10 52 460 -10,314 - - -12 611 282 1,891 1,375 Pentanes Plus .................................................. 1,788 -10 - - - -1,036 - - -15 174 273 310 180 Liquefied Petroleum Gases

368

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 15. PAD District 3 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil 6 ............................................................ 3,327 - - - - 4,646 -720 39 -191 7,482 - 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 1,380 -1 304 84 227 - - -113 306 108 1,693 Pentanes Plus .................................................. 155 -1 - - 77 -58 - - 35 106 1 31 Liquefied Petroleum Gases ..............................

369

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 9. PAD District 2 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 29,019 - - - - 52,699 26,041 2,973 12 109,175 1,544 0 93,189 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 14,079 -560 812 2,541 -423 - - -6,605 4,051 2,114 16,889 48,197 Pentanes Plus .................................................. 1,354 -560 - - 21 2,843 - - 110 1,049

370

Petroleum Supply Monthly  

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

2 2 September 2013 Table 16. PAD District 3 - Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil 6 ............................................................ 4,354 - - - - 3,718 -413 345 75 7,905 24 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 1,615 0 454 39 170 - - 62 282 267 1,666 Pentanes Plus .................................................. 195 0 - - 36 -65 - - 15 113 4 35 Liquefied Petroleum Gases

371

Petroleum Supply Annual  

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

TABLE9.PDF TABLE9.PDF Table 9. PAD District 4 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 12,961 - - - - 10,783 -3,879 896 2,868 17,893 0 0 18,695 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 12,770 -9 127 502 -11,116 - - -50 621 280 1,423 1,326 Pentanes Plus .................................................. 1,484 -9 - - - -1,152 - - 7 122 264 -70 187 Liquefied Petroleum Gases

372

Petroleum Supply Annual  

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

.PDF .PDF Table 3. PAD District 1 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 734 - - - - 26,368 419 -1,209 627 25,554 130 0 10,529 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 1,314 -6 923 1,606 2,621 - - -1,556 707 53 7,254 6,409 Pentanes Plus .................................................. 213 -6 - - - - - - 3 5 6 193 34 Liquefied Petroleum Gases ..............................

373

Alternate Water Supply System  

Office of Legacy Management (LM)

Alternate Water Supply Alternate Water Supply System Flushing Report Riverton, Wyoming, Processing Site January 2008 Office of Legacy Management DOE M/1570 2008 - -L Work Performed Under DOE Contract No. for the U.S. Department of Energy Office of Legacy Management. DE-AC01-02GJ79491 Approved for public release; distribution is unlimited. Office of Legacy Management Office of Legacy Management Office of Legacy Management U.S. Department of Energy This page intentionally left blank DOE-LM/1570-2008 Alternate Water Supply System Flushing Report Riverton, Wyoming, Processing Site January 2008 Work Performed by S.M. Stoller Corporation under DOE Contract No. DE-AC01-02GJ79491 for the U.S. Department of Energy Office of Legacy Management, Grand Junction, Colorado This page intentionally left blank

374

Petroleum Supply Annual  

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

TABLE5.PDF TABLE5.PDF Table 5. PAD District 2 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 29,902 - - - - 53,695 23,732 5,619 2,406 108,247 2,295 0 95,547 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 13,989 -544 1,333 2,797 949 - - -6,644 3,628 2,687 18,853 41,545 Pentanes Plus .................................................. 1,274 -544 - - 11 4,162 - - 233 966

375

Petroleum Supply Monthly  

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

September 2013 Table 4. U.S. Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 7,340 - - - - 7,778 239 25 15,229 104 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 2,516 -18 716 175 - - 133 465 434 2,358 Pentanes Plus .................................................. 340 -18 - - 38 - - 20 168 134 38 Liquefied Petroleum Gases .............................. 2,176 - - 716

376

Petroleum Supply Monthly  

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

4 4 September 2013 Table 18. PAD District 4 - Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 139,573 - - - - 79,019 -46,108 -13,333 1,073 158,068 10 0 19,287 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 86,184 -86 3,535 3,052 -71,945 - - 423 4,378 4,054 11,885 1,893 Pentanes Plus ..................................................

377

Petroleum Supply Monthly  

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

30 30 September 2013 Table 24. PAD District 5 - Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 1,101 - - - - 1,091 - 115 -14 2,320 1 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 65 0 67 5 - - - 13 63 14 47 Pentanes Plus .................................................. 29 0 - - - - - - 1 21 4 3 Liquefied Petroleum Gases ..............................

378

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 5. PAD District 1 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 751 - - - - 26,471 -300 1,308 -869 28,999 100 0 9,902 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 1,313 -7 839 2,091 3,702 - - -929 816 33 8,018 7,618 Pentanes Plus .................................................. 225 -7 - - - - - - 3 - 11 204 31 Liquefied Petroleum Gases

379

Petroleum Supply Monthly  

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

September 2013 Table 6. PAD District 1 - Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 8,672 - - - - 230,125 -359 62,824 2,069 289,586 9,606 0 10,326 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 19,329 -83 12,151 10,808 21,118 - - 168 4,287 2,821 56,047 6,541 Pentanes Plus ..................................................

380

Petroleum Supply Annual  

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

.PDF .PDF Table 2. U.S. Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 6,133 - - - - 8,527 205 413 14,374 78 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 2,384 -19 421 224 - - -366 512 268 2,595 Pentanes Plus .................................................. 285 -19 - - 55 - - -26 160 89 98 Liquefied Petroleum Gases .............................. 2,099 - - 421 169 - - -340 353 179 2,497 Ethane/Ethylene

Note: This page contains sample records for the topic "uninterruptible power supply" 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

U.S. Natural Gas Supply Equation and Price Envelope  

Science Conference Proceedings (OSTI)

This report presents a composite assessment of U.S. natural gas supply and demand balance for the time period 2005 to 2011. The key elements in this outlook, or equation, are changes in supply (rapidly increasing LNG [liquefied natural gas] imports, modest U.S. supply growth, and declining imports from Canada) and in demand (notably, growth for electric power generation and small increases in other sectors). Uncertainties concerning each component are identified and analyzed. While LNG will account for t...

2007-11-05T23:59:59.000Z

382

Renewable Fuel Supply Ltd RFSL | Open Energy Information  

Open Energy Info (EERE)

Supply Ltd RFSL Supply Ltd RFSL Jump to: navigation, search Name Renewable Fuel Supply Ltd (RFSL) Place United Kingdom Zip W1J 5EN Sector Biomass Product UKâ€(tm)s largest supplier of biomass to the UK co-firing power stations. References Renewable Fuel Supply Ltd (RFSL)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Renewable Fuel Supply Ltd (RFSL) is a company located in United Kingdom . References ↑ "[fsl@@Pikefsl@@Renewablefsl@@generationfsl@@sub*-Utilityfsl@@Photovoltanicsfsl@@Fuelfsl@@Wind-Poerfsl@@/ Renewable Fuel Supply Ltd (RFSL)" Retrieved from "http://en.openei.org/w/index.php?title=Renewable_Fuel_Supply_Ltd_RFSL&oldid=350339" Categories:

383

Selected GHG Emission Supply Curves | Open Energy Information  

Open Energy Info (EERE)

Selected GHG Emission Supply Curves Selected GHG Emission Supply Curves Jump to: navigation, search Tool Summary Name: Selected GHG Emission Supply Curves Agency/Company /Organization: Northwest Power and Conservation Council Sector: Energy Focus Area: Conventional Energy, Energy Efficiency, Renewable Energy, Industry, Transportation, Forestry, Agriculture Topics: GHG inventory, Pathways analysis Resource Type: Dataset, Publications Website: www.nwcouncil.org/energy/grac/20090130_Supply%20Curves_NWPCC_FINAL.pdf Selected GHG Emission Supply Curves Screenshot References: Selected GHG Emission Supply Curves[1] Background "The ECL supply curve model includes data on potential emission reductions for approximately 60 separate technology options. It allows the examination of multiple scenarios involving the inclusion or exclusion of technology

384

Supply Chain - Submissions | Data.gov  

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

Submissions Sustainable Supply Chains Submissions Let's Talk About Sustainable Supply Chain You are here Data.gov Communities Sustainable Supply Chain Sustainable Supply...

385

New approaches to improve the performance of the PEM based fuel cell power systems  

E-Print Network (OSTI)

Fuel cells are expected to play an important role in future power generation. However, significant technical challenges remain and the commercial breakthrough of fuel cells is hindered by the high price of fuel cell components. As is well known, the fuel cells do not provide the robust source characteristics required to effectively follow the load during significant load steps and they have limited overload-handling capability. Further, the performance of the fuel cell is significantly degraded when the CO (Carbon Monoxide) is contained in the hydrogen fuel. In this thesis several new approaches to improve the performance of PEM based fuel cell power systems are discussed. In the first section an impedance model of the Proton Exchange Membrane Fuel Cell Stack (PEMFCS) is first proposed. This equivalent circuit model of the fuel cell stack is derived by a frequency response analysis (FRA) technique to evaluate the effects of the ripple current generated by the power-conditioning unit. Experimental results are presented to show the effects of the ripple currents. In the second section, a fuel cell powered UPS (Uninterruptible Power Supply) system is proposed. In this approach, two PEM Fuel Cell modules along with suitable DC/DC and DC/AC power electronic converter modules are employed. A Supercapacitor module is also employed to compensate for instantaneous power fluctuations including overload and to overcome the slow dynamics of the fuel processor such as reformers. A complete design example for a 1-kVA system is presented. In the third section, an advanced power converter topology is proposed to significantly improve the CO tolerance on PEM based fuel cell power systems. An additional two-stage dc-dc converter with a supercapacitor module is connected to the fuel cell to draw a low frequency (0.5Hz) pulsating current of the specific amplitude (20-30[A]) from the fuel cell stack. CO on the catalyst surface can be electro-oxidized by using this technique, and thereby the CO tolerance of the system can be significantly improved. Simulation and experimental results show the validity and feasibility of the proposed scheme.

Choi, Woojin

2004-08-01T23:59:59.000Z

386

Hot water supply system  

SciTech Connect

A hot water supply system is described which consists of: a boiler having an exhaust; solar panels; and a frame supporting the solar panels and including a compartment beneath the solar panels, the boiler exhaust termining in the compartment beneath the solar panels, the boiler being within the compartment.

Piper, J.R.

1986-06-10T23:59:59.000Z

387

A Stochastic Unit Commitment Model for Integrating Renewable Supply  

E-Print Network (OSTI)

A Stochastic Unit Commitment Model for Integrating Renewable Supply and Demand Response Anthony from the large-scale integration of renewable energy sources and deferrable demand in power systems. We- sorbing the uncertainty and variability associated with renewable supply: centralized co

Oren, Shmuel S.

388

Body powered thermoelectric systems  

E-Print Network (OSTI)

Great interest exists for and progress has be made in the effective utilization of the human body as a possible power supply in hopes of powering such applications as sensors and continuously monitoring medical devices ...

Settaluri, Krishna Tej

2012-01-01T23:59:59.000Z

389

Natural Gas Supply SBIR Program  

SciTech Connect

The Small Business Innovation Research (SBIR) program was created in 1982 by Public Law 97-219 and reauthorized in 1992 until the year 2000 by Public Law 102-564. The purposes of the new law are to (1) expand and improve the SBIR program, 2) emphasize the program`s goal of increasing private sector commercialization of technology developed through Federal R&D, (3) increase small business participation in Federal R&D, and (4) improve the Federal Government`s dissemination of information concerning the SBIR program. DOE`s SBIR pro-ram has two features that are unique. In the 1995 DOE SBIR solicitation, the DOE Fossil Energy topics were: environmental technology for natural gas, oil, and coal; advanced recovery of oil; natural gas supply; natural gas utilization; advanced coal-based power systems; and advanced fossil fuels research. The subtopics for this solicitation`s Natural Gas Supply topic are (1) drilling, completion, and stimulation; (2) low-permeability Formations; (3) delivery and storage; and (4) natural gas upgrading.

Shoemaker, H.D.; Gwilliam, W.J.

1995-07-01T23:59:59.000Z

390

Electric Vehicle Supply Equipment (EVSE) Test Report: ClipperCreek  

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

(Vrms) 208.89 Supply frequency (Hz) 60.00 Initial ambient temperature (F) 52 Test Vehicle 1,3 Make and model 2011 Chevrolet Volt Battery type Li-ion Steady state charge power...

391

Electric Vehicle Supply Equipment (EVSE) Test Report: Leviton  

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

(Vrms) 239.69 Supply frequency (Hz) 59.99 Initial ambient temperature (F) 58 Test Vehicle 1,3 Make and model 2011 Chevrolet Volt Battery type Li-ion Steady state charge power...

392

Supply Stores | Department of Energy  

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

Supply Stores Supply Stores Supply Stores DOE Self Service Supply Stores at Headquarters Operated by: Paperclips, Etc. and the Winston-Salem Industries for the Blind DOE Self-Service Supply Stores Hours of Operation: 9:00 a.m. through 4:00 p.m. Monday through Friday DOE Supply Stores Locations Location Phone Fax Forrestal Room GA-171 (202) 554-1451 (202) 554-1452 (202) 554-7074 Germantown Room R-008 (301) 515-9109 (301) 515-9206 (301) 515-8751 The stores provide an Office Supply Product inventory that is tailored to meet the DOE customer's requirements. Office Supply items that are not carried in the store inventory can be special ordered, see the Catalog Order Form section below. The stores are operated for the Department of Energy, Office of Administration, Office of Logistics and Facility Operations, for the Supply

393

Oil and Gas Supply Module  

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

Oil and Gas Supply Module Oil and Gas Supply Module This page inTenTionally lefT blank 119 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2013 Oil and Gas Supply Module The NEMS Oil and Gas Supply Module (OGSM) constitutes a comprehensive framework with which to analyze crude oil and natural gas exploration and development on a regional basis (Figure 8). The OGSM is organized into 4 submodules: Onshore Lower 48 Oil and Gas Supply Submodule, Offshore Oil and Gas Supply Submodule, Oil Shale Supply Submodule[1], and Alaska Oil and Gas Supply Submodule. A detailed description of the OGSM is provided in the EIA publication, Model Documentation Report: The Oil and Gas Supply Module (OGSM), DOE/EIA-M063(2011), (Washington, DC, 2011). The OGSM provides

394

Petroleum Supply Annual  

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

January 2012 January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 190,109 - - - - 264,348 6,359 12,794 445,596 2,425 0 1,039,424 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 73,905 -587 13,044 6,935 - - -11,335 15,883 8,313 80,436 118,039 Pentanes Plus .................................................. 8,824 -587 - - 1,699 - - -805 4,946 2,754 3,041 16,791 Liquefied Petroleum Gases .............................. 65,081 - - 13,044 5,236 - - -10,530 10,937 5,559 77,395 101,248 Ethane/Ethylene

395

Petroleum Supply Annual  

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

3.PDF 3.PDF Table 13. Crude Oil Supply, Disposition, and Ending Stocks by PAD District, January 2012 (Thousand Barrels, Except Where Noted) Process PAD Districts U.S. Total 1 2 3 4 5 Total Daily Average Supply Field Production .................................................... 734 29,902 109,919 12,961 36,593 190,109 6,133 Alaskan ............................................................. - - - - - - - - - 18,374 593 Lower 48 States ................................................ - - - - - 171,734 5,540 Imports (PAD District of Entry) ............................. 26,368 53,695 142,073 10,783 31,429 264,348 8,527 Commercial ...................................................... 26,368 53,695 142,073 10,783 31,429 264,348 8,527 Strategic Petroleum Reserve (SPR) ................. - - - - - - - Net Receipts .........................................................

396

Petroleum Supply Annual  

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

2012 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 2,374,021 - - - - 3,120,755 53,567 34,134 5,489,516 24,693 0 1,060,764 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 881,306 -6,534 230,413 62,192 - - 23,894 186,270 115,054 842,159 153,268 Pentanes Plus .................................................. 116,002 -6,534 - - 10,680 - - -4,857 63,596 43,136 18,273 12,739 Liquefied Petroleum Gases .............................. 765,304 - - 230,413 51,512 - - 28,751 122,674 71,918

397

U.S. Coal Supply and Demand  

Gasoline and Diesel Fuel Update (EIA)

U.S. Coal Supply and Demand > U.S. Coal Supply and Demand U.S. Coal Supply and Demand > U.S. Coal Supply and Demand U.S. Coal Supply and Demand 2010 Review (entire report also available in printer-friendly format ) Previous Editions 2009 Review 2008 Review 2007 Review 2006 Review 2005 Review 2004 Review 2003 Review 2002 Review 2001 Review 2000 Review 1999 Review Data for: 2010 Released: May 2011 Next Release Date: April 2012 Table 3. Electric Power Sector Net Generation, 2009-2010 (Million Kilowatthours) New England Coal 14,378 14,244 -0.9 Hydroelectric 7,759 6,861 -11.6 Natural Gas 48,007 54,680 13.9 Nuclear 36,231 38,361 5.9 Other (1) 9,186 9,063 -1.3 Total 115,559 123,210 6.6 Middle Atlantic Coal 121,873 129,935 6.6 Hydroelectric 28,793 26,463 -8.1 Natural Gas 89,808 104,341 16.2 Nuclear 155,140 152,469 -1.7

398

Surface Power Technologies | Open Energy Information  

Open Energy Info (EERE)

Surface Power Technologies Jump to: navigation, search Name Surface Power Technologies Place Ireland Sector Solar, Wind energy Product An Irish company supplying solar and...

399

Oil and Gas Supply Module  

Gasoline and Diesel Fuel Update (EIA)

1 1 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2012 Oil and Gas Supply Module The NEMS Oil and Gas Supply Module (OGSM) constitutes a comprehensive framework with which to analyze crude oil and natural gas exploration and development on a regional basis (Figure 8). The OGSM is organized into 4 submodules: Onshore Lower 48 Oil and Gas Supply Submodule, Offshore Oil and Gas Supply Submodule, Oil Shale Supply Submodule[1], and Alaska Oil and Gas Supply Submodule. A detailed description of the OGSM is provided in the EIA publication, Model Documentation Report: The Oil and Gas Supply Module (OGSM), DOE/EIA-M063(2011), (Washington, DC, 2011). The OGSM provides crude oil and natural gas short-term supply parameters to both the Natural Gas Transmission and Distribution Module and the Petroleum

400

Accuracy of Petroleum Supply Data  

Annual Energy Outlook 2012 (EIA)

Accuracy of Petroleum Supply Data by Tammy G. Heppner and Carol L. French Overview Petroleum supply data collected by the Petroleum Division (PD) in the Office of Oil and Gas (OOG)...

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Biomass Supply Chain: Issues and Lessons  

Science Conference Proceedings (OSTI)

This report investigates the risks in the supply chain for biomass fuels delivered to plants for electric power generation. The intent is to reduce plant operating risks by increasing awareness of potential problems, make specific suggestions for the improvement of biomass assessments, and identify useful areas for further research. A biomass assessment is currently the key tool for identifying the risks pertinent to a specific proposed biomass plant. Three biomass assessments are compared regarding what...

2010-12-31T23:59:59.000Z

402

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 February 2012 Energy Information Administration/Petroleum Supply Monthly, ii December 2011 EIA DATA ARE AVAILABLE IN ELECTRONIC FORM All current EIA publications are available on the EIA web site. Users can view and download selected pages or entire reports, search for information, download EIA data and analysis applications, and find out about new EIA information products and services: World Wide Web: http://www.eia.doe.gov FTP: ftp://ftp.eia.doe.gov Customers who do not have access to the Internet may call the National Energy Information Center (NEIC) to request a single print-

403

Petroleum Supply Monthly  

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

With Data for September 2013 With Data for September 2013 November 2013 Energy Information Administration/Petroleum Supply Monthly, ii September 2013 EIA DATA ARE AVAILABLE IN ELECTRONIC FORM All current EIA publications are available on the EIA web site. Users can view and download selected pages or entire reports, search for information, download EIA data and analysis applications, and find out about new EIA information products and services: World Wide Web: http://www.eia.doe.gov FTP: ftp://ftp.eia.doe.gov Customers who do not have access to the Internet may call the National Energy Information Center (NEIC) to request a single print-

404

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

9 9 Decemer 2011 Appendix D Northeast Home Heating Oil Reserve Information on the Northeast Home Heating Oil Reserve is available from the U.S. Department of Energy (DOE) Office of Petroleum Reserves web site at http://www.fossil.energy.gov/programs/reserves/heatingoil/. Northeast Home Heating Oil Reserve (NEHHOR) inventories now classified as ultra-low sulfur distillate (15 parts per million) are not considered to be in the commercial sector and therefore are excluded from distillate fuel oil supply and disposition statistics in Energy

405

Petroleum Supply Monthly  

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

7 7 September 2013 Appendix D Northeast Home Heating Oil Reserve Information on the Northeast Home Heating Oil Reserve is available from the U.S. Department of Energy (DOE) Office of Petroleum Reserves web site at http://www.fossil.energy.gov/programs/reserves/heatingoil/. Northeast Home Heating Oil Reserve (NEHHOR) inventories now classified as ultra-low sulfur distillate (15 parts per million) are not considered to be in the commercial sector and therefore are excluded from distillate fuel oil supply and disposition statistics in Energy

406

Reducing the Environmental Footprint and Economic Costs of Automotive Manufacturing through an Alternative Energy Supply  

E-Print Network (OSTI)

natural gas supplied to the fuel cell power plant is only involved in a chemical oxidation process, instead of burning, in the electricity generation

Yuan, Chris; Dornfeld, David

2009-01-01T23:59:59.000Z

407

Conformal Thermal Models for Optimal Loading and Elapsed Life Estimation of Power Transformers.  

E-Print Network (OSTI)

??Power and Generator Transformers are important and expensive elements of a power system. Inadvertent failure of Power Transformers would cause long interruption in power supply… (more)

Pradhan, Manoj Kumar

2004-01-01T23:59:59.000Z

408

Accuracy of Petroleum Supply Data  

Gasoline and Diesel Fuel Update (EIA)

Accuracy of Petroleum Supply Data Accuracy of Petroleum Supply Data by Tammy G. Heppner and Carol L. French Overview Petroleum supply data collected by the Petroleum Division (PD) in the Office of Oil and Gas (OOG) of the Energy Information Administration (EIA) showed an improvement in the accuracy of the 2005 data from initial estimates, to interim values, to final values. These data were presented in a series of PD products: the Weekly Petroleum Status Report (WPSR), This Week in Petroleum (TWIP), the Petroleum Supply Monthly (PSM), and the Petroleum Supply Annual (PSA). Weekly estimates in the WPSR and TWIP were the first values available. Figure FE1 illustrates that as reporting and review time passes from the weekly estimates to the interim monthly values to the final petroleum supply values, the EIA is able to produce more accurate petroleum supply data. For the monthly-from-weekly (MFW) data, respondents

409

Air Handling Unit Supply Air Temperature Optimization During Economizer Cycles  

E-Print Network (OSTI)

Most air handling units (AHUs) in commercial buildings have an air economizer cycle for free cooling under certain outside air conditions. During the economizer cycle, the outside air and return air dampers are modulated to seek mixing air temperature at supply air temperature setpoint. Mechanical cooling is always required when outside air temperature is higher than the supply air temperature setpoint. Generally the supply air temperature setpoint is set at 55°F for space humidity control. Actually the dehumidification is not necessary when outside air dew point is less than 55°F. Meanwhile the space may have less cooling load due to envelope heat loss and/or occupant schedule. These provide an opportunity to use higher supply air temperature to reduce or eliminate mechanical cooling and terminal box reheat. On the other hand the higher supply air temperature will require higher air flow as well as higher fan power. Therefore the supply air temperature has to be optimized to minimize the combined energy for fan, cooling and heating energy. In this paper a simple energy consumption model is established for AHU systems during the economizer and then a optimal supply air temperature control is developed to minimize the total cost of the mechanical cooling and the fan motor power. This paper presents AHU system energy modeling, supply air temperature optimization, and simulated energy savings.

Xu, K.; Liu, M.; Wang, G.; Wang, Z.

2007-01-01T23:59:59.000Z

410

Power-Pro: Programmable Power Management Architecture  

E-Print Network (OSTI)

This paper presents Power-Pro architecture (Programmable Power Management Architecture), a novel processor architecture for power reduction. Power-Pro architecture has following two functionalities, (i) Supply voltage and clock frequency can be dynamically varied, (ii) Active data-path width can be dynamically adjusted to requirement of application programs. For the application programs which require less performance or less data-path width, Power-Pro architecture realize dramatic power reduction. I. Introduction With recent popularizations in portable, batterypowered devices such as digital cellular telephones and personal digital assistants, minimizing power consumption of VLSI circuits becomes more important. As the system level power reduction techniques, the choice of optimal supply voltage(V DD ) and optimal active data-path width have strong impacts. In this paper we propose novel processor architecture Power-Pro [2] which can vary VDD and active data-path width of processor ...

Tohru Ishihara; Hiroto Yasuura; Programmable Power Management

1998-01-01T23:59:59.000Z

411

A Dynamic Supply-Demand Model for Electricity Prices Manuela Buzoianu  

E-Print Network (OSTI)

played a role during the crisis period. 1 Introduction The energy industry provides electrical powerA Dynamic Supply-Demand Model for Electricity Prices Manuela Buzoianu , Anthony E. Brockwell of supply and demand equilibrium. The model includes latent supply and demand curves, which may vary over

412

Assessing Reliability In Hydrogen Supply Pathways  

E-Print Network (OSTI)

but increasing portion of natural gas supply – As percentagehighly dependent on natural gas supply infrastructure LNGpercentage of natural gas supply Dependence of other systems

McCarthy, Ryan; Ogden, Joan M

2005-01-01T23:59:59.000Z

413

Assessing reliability in energy supply systems  

E-Print Network (OSTI)

Term Prospects for Natural Gas Supply. Energy Informationin coming decades, natural gas supply will increasingly facefunctional zones of natural gas supply, such as reserves and

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

2007-01-01T23:59:59.000Z

414

Assessing Reliability in Energy Supply Systems  

E-Print Network (OSTI)

Term Prospects for Natural Gas Supply. Energy Informationin coming decades, natural gas supply will increasingly facefunctional zones of natural gas supply, such as reserves and

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

2008-01-01T23:59:59.000Z

415

Supplemental Gas Supplies  

Gasoline and Diesel Fuel Update (EIA)

. . Supplemental Gas Supplies by State, 1996 (Million Cubic Feet) Table State Synthetic Natural Gas Propane- Air Refinery Gas Biomass Gas Other Total Alabama ...................... 0 18 0 0 0 18 Colorado...................... 0 344 0 0 a 6,443 6,787 Connecticut ................. 0 48 0 0 0 48 Delaware ..................... 0 1 0 0 0 1 Georgia........................ 0 94 0 0 0 94 Hawaii.......................... 2,761 0 0 0 0 2,761 Illinois .......................... 0 488 3,423 0 0 3,912 Indiana......................... 0 539 0 0 b 2,655 3,194 Iowa............................. 0 301 0 0 0 301 Kentucky...................... 0 45 0 0 0 45 Maine........................... 0 61 0 0 0 61 Maryland...................... 0 882 0 0 0 882 Massachusetts ............ 0 426 0 0 0 426 Michigan ...................... 0 0 0 0 c 21,848 21,848 Minnesota.................... 0 709 0 0 0 709 Missouri

416

Sustainable Biomass Supply Systems  

DOE Green Energy (OSTI)

The U.S. Department of Energy (DOE) aims to displace 30% of the 2004 gasoline use (60 billion gal/yr) with biofuels by 2030 as outlined in the Energy Independence and Security Act of 2007, which will require 700 million tons of biomass to be sustainably delivered to biorefineries annually. Lignocellulosic biomass will make an important contribution towards meeting DOE’s ethanol production goals. For the biofuels industry to be an economically viable enterprise, the feedstock supply system (i.e., moving the biomass from the field to the refinery) cannot contribute more that 30% of the total cost of the biofuel production. The Idaho National Laboratory in collaboration with Oak Ridge National Laboratory, University of California, Davis and Kansas State University are developing a set of tools for identifying economical, sustainable feedstocks on a regional basis based on biorefinery siting.

Erin Searcy; Dave Muth; Erin Wilkerson; Shahab Sokansanj; Bryan Jenkins; Peter Titman; Nathan Parker; Quinn Hart; Richard Nelson

2009-04-01T23:59:59.000Z

417

NNSA TRITIUM SUPPLY CHAIN  

SciTech Connect

Savannah River Site plays a critical role in the Tritium Production Supply Chain for the National Nuclear Security Administration (NNSA). The entire process includes: • Production of Tritium Producing Burnable Absorber Rods (TPBARs) at the Westinghouse WesDyne Nuclear Fuels Plant in Columbia, South Carolina • Production of unobligated Low Enriched Uranium (LEU) at the United States Enrichment Corporation (USEC) in Portsmouth, Ohio • Irradiation of TPBARs with the LEU at the Tennessee Valley Authority (TVA) Watts Bar Reactor • Extraction of tritium from the irradiated TPBARs at the Tritium Extraction Facility (TEF) at Savannah River Site • Processing the tritium at the Savannah River Site, which includes removal of nonhydrogen species and separation of the hydrogen isotopes of protium, deuterium and tritium.

Wyrick, Steven [Savannah River National Laboratory, Aiken, SC, USA; Cordaro, Joseph [Savannah River National Laboratory, Aiken, SC, USA; Founds, Nanette [National Nuclear Security Administration, Albuquerque, NM, USA; Chambellan, Curtis [National Nuclear Security Administration, Albuquerque, NM, USA

2013-08-21T23:59:59.000Z

418

Reducing US vulnerability to oil supply shocks  

Science Conference Proceedings (OSTI)

The 1990 crisis in the Middle East has raised concern about the United States`s vulnerability to oil supply disruptions. In addition, a number of trends point to increased US dependence on imported oil. Oil imports have increased and production has declined in the United States for the last eight years. Imports now comprise 42 percent of total oil consumption and US dependence on oil imports is projected to increase over the next 20 years. The Energy Modeling Forum forecasts imports to be more than twice domestic production by the year 2010. There are many studies examining the effects of various policies to protect US energy security. Not many consider the Strategic Petroleum Reserve (SPR), which can be a powerful tool in combating energy supply shocks. The SPR can dramatically increase the domestic short run supply elasticity, which has been found to be a key element in the welfare cost of protectionist policies. Upon examining 5 policies the author finds that the SPR together with a protectionist policy works best against a supply disruption. 27 refs., 3 tabs.

Yuecel, M.K. [Federal Reserve Bank of Dallas, TX (United States)

1994-10-01T23:59:59.000Z

419

Assisting Mexico in Developing Energy Supply and Demand Projections | Open  

Open Energy Info (EERE)

Assisting Mexico in Developing Energy Supply and Demand Projections Assisting Mexico in Developing Energy Supply and Demand Projections Jump to: navigation, search Name Assisting Mexico in Developing Energy Supply and Demand Projections Agency/Company /Organization Argonne National Laboratory Sector Energy Topics GHG inventory, Background analysis Resource Type Software/modeling tools Website http://www.dis.anl.gov/news/Me Country Mexico UN Region Latin America and the Caribbean References Assisting Mexico in Developing Energy Supply and Demand Projections[1] "CEEESA and the team of experts from Mexico analyzed the country's entire energy supply and demand system using CEEESA's latest version of the popular ENPEP-BALANCE software. The team developed a system representation, a so-called energy network, using ENPEP's powerful graphical user

420

Optics Supply Planning System  

Science Conference Proceedings (OSTI)

The purpose of this study is to specify the design for an initial optics supply planning system for NIF, and to present quality assurance and test plans for the construction of the system as specified. The National Ignition Facility (NIF) is a large laser facility that is just starting operations. Thousands of specialized optics are required to operate the laser, and must be exchanged over time based on the laser shot plan and predictions of damage. Careful planning and tracking of optic exchanges is necessary because of the tight inventory of spare optics, and the long lead times for optics procurements and production changes. Automated inventory forecasting and production planning tools are required to replace existing manual processes. The optics groups members who are expected to use the supply planning system are the stakeholders for this project, and are divided into three groups. Each of these groups participated in a requirements specification that was used to develop this design. (1) Optics Management--These are the top level stakeholdersk, and the final decision makers. This group is the interface to shot operations, is ultimately responsible for optics supply, and decides which exchanges will be made. (2) Work Center Managers--This group manages the on site optics processing work centers. They schedule the daily work center operations, and are responsible for developing long term processing, equipment, and staffing plans. (3) Component Engineers--This group manages the vendor contracts for the manufacture of new optics and the off site rework of existing optics. They are responsible for sourcing vendors, negotiating contracts, and managing vendor processes. The scope of this analysis is to describe the structure and design details of a system that will meet all requirements that were described by stakeholders and documented in the analysis model for this project. The design specifies the architecture, components, interfaces, and data stores of the system at a level of detail that can be used for construction and deployment. Test and quality assurance plans are also included to insure that the system delivers all requirements when it is built. The design is for an automated forecasting prototype that allocates inventory and processing resources in response to potentially daily changes in the forecasted optics exchanges required to operate NIF. It will automatically calculate future inventory levels and processing rates based on current inventory and projected exchanges, procurements, and capacities. It will include screens that allow users to readily assess the feasibility of the forecast, identify failures to meet the demand, revise input data, and re-run the automated forecast calculation. In addition, the system will automatically retrieve the current exchange demand from an external database. Approved forecasts from the system will automatically update work order plans and procurement plans in the existing inventory and production control database. The timing of optics exchanges affects the forecast of damage and future exchanges, so an approved exchange plan will be fed back to the demand database and be used to calculate the next demand projection. The system will read the demand data and update the forecast and output files daily. This specification has been divided into two parts. This document, Part 1 lays out the major design decisions and specifies the architectural, component, and data structure designs. Part 2 will add interface designs, quality assurance and testing plans, and deployment details.

Gaylord, J

2009-04-30T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed  

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

Favorable Supplies, Costs, Environmental Profile for Natural Gas Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed in New Department of Energy Study Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed in New Department of Energy Study August 23, 2012 - 1:00pm Addthis Washington, DC - The nation's large resource base of natural gas can be used for cost-effective power generation, with environmental burdens coming primarily from fuel combustion, not resource extraction, according to a new Department of Energy (DOE) study. The report, Role of Alternative Energy Sources: Natural Gas Power Technology Assessment, was prepared by the Office of Fossil Energy's National Energy Technology Laboratory (NETL). Analysts focused on seven criteria to evaluate the role of natural gas in the U.S. energy supply

422

Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed  

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

Favorable Supplies, Costs, Environmental Profile for Natural Gas Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed in New Department of Energy Study Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed in New Department of Energy Study August 23, 2012 - 1:00pm Addthis Washington, DC - The nation's large resource base of natural gas can be used for cost-effective power generation, with environmental burdens coming primarily from fuel combustion, not resource extraction, according to a new Department of Energy (DOE) study. The report, Role of Alternative Energy Sources: Natural Gas Power Technology Assessment, was prepared by the Office of Fossil Energy's National Energy Technology Laboratory (NETL). Analysts focused on seven criteria to evaluate the role of natural gas in the U.S. energy supply

423

Petroleum Supply and Market Outlook  

U.S. Energy Information Administration (EIA)

2/9/2005: Petroleum Supply and Market Outlook. This presentation contains content that your browser may not be able to show properly.

424

School supply drive winding down  

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

submit School supply drive winding down The drive is collecting materials for schools throughout Northern New Mexico and will be distributed by the Lab and Self Help, Inc....

425

Motor Systems Efficiency Supply Curves  

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

expert opinion and available data from the United States, Canada, the European Union, Thailand, Vietnam, and Brazil, bottom-up energy efficiency supply curve models were...

426

Petroleum Supply and Market Outlook  

U.S. Energy Information Administration (EIA)

Petroleum Supply and Market Outlook Briefing for the 7th Annual International Airport Operations/Jet Fuel Conference Orlando, Florida Mike Burdette

427

Survey of the market, supply and availability of gallium  

DOE Green Energy (OSTI)

The objective of this study was to assess the present consumption and supply of gallium, its potential availability in the satellite power system (SPS) implementation time frame, and commercial and new processing methods for increasing the production of gallium. Findings are reported in detail. The findings strongly suggest that with proper long range planning adequate gallium would be available from free-enterprise world supplies of bauxite for SPS implementation.

Rosi, F.D.

1980-07-01T23:59:59.000Z

428

Crude Oil Supply  

Gasoline and Diesel Fuel Update (EIA)

Crude Oil Supply Domestic Production (a) .......................................... 6.22 6.29 6.42 7.02 7.11 7.29 7.61 7.97 8.26 8.45 8.57 8.86 6.49 7.50 8.54 Alaska .................................................................. 0.58 0.53 0.44 0.55 0.54 0.51 0.48 0.52 0.51 0.47 0.42 0.49 0.53 0.51 0.47 Federal Gulf of Mexico (b) .................................... 1.34 1.19 1.18 1.36 1.30 1.22 1.27 1.29 1.34 1.36 1.37 1.45 1.27 1.27 1.38 Lower 48 States (excl GOM) ................................ 4.31 4.57 4.80 5.11 5.28 5.56 5.87 6.16 6.41 6.61 6.77 6.91 4.70 5.72 6.68 Crude Oil Net Imports (c) ......................................... 8.55 8.88 8.52 7.89 7.47 7.61 7.94 7.36 6.66 6.78 6.83 6.06 8.46 7.60 6.58 SPR Net Withdrawals ..............................................

429

Climate VISION: Private Sector Initiatives: Electric Power: Resources and  

Office of Scientific and Technical Information (OSTI)

Electric Power Industry Climate Initiative (EPICI) Members Electric Power Industry Climate Initiative (EPICI) Members American Public Power Association American Public Power Association Logo The American Public Power Association (APPA) is the service organization for the nation's public power utilities. Edison Electric Institute Edison Electric Institute Logo Edison Electric Institute (EEI) is the premier trade association for U.S. shareholder-owned electric companies, and serves international affiliates and industry associates worldwide. Electric Power Supply Association Electric Power Supply Association Logo The Electric Power Supply Association (EPSA) is the national trade association representing competitive power suppliers, including independent power producers, merchant generators, and power marketers. Large Public Power Council

430

Woody Biomass Supply Issues  

Science Conference Proceedings (OSTI)

Woody biomass is the feedstock for the majority of biomass power producers. Woody biomass consists of bark and wood and is generally obtained as a byproduct or waste product. Approximately 40% of timber biomass is left behind in the form of slash, consisting of tree tops, branches, and stems after a timber harvest. Collecting and processing this residue provides the feedstock for many utility biomass projects. Additional sources of woody biomass include urban forestry, right-of-way clearance, and trees k...

2011-03-31T23:59:59.000Z

431

ELECTRIC POWER AND VENTILATION SYSTEM OF SILOE  

SciTech Connect

The 15-kv electric power of Siloe is supplied from a central substation, which serves all the laboratories in the Center. The substation transforms primary 3-phase power from 15 kv to 380 to 220 v. Control installations are supplied from sets of rectifiers and batteries with 127 and 48 v direct current. If the normal electric power supply fails, a 12000 kva diesel driven generator is automatically started and in a very short time supplies power. The ventilation system supplies the whole building with conditioned air, holds the shell in negative pressure, and exhausts radioactive effluents. (auth)

Mitault, G.; Faudou, J.-C.

1963-12-01T23:59:59.000Z

432

REGIONAL WATER SUPPLY PLANNING AND  

E-Print Network (OSTI)

accepted standards, which is an important planning aspect for water supply agencies. Yeh et al. (2000CHAPTER 3 REGIONAL WATER SUPPLY PLANNING AND CAPACITY EXPANSION MODELS Messele Z. Ejeta California Department of Water Resources Sacramento, California Larry W. Mays Department of Civil and Environmental

Mays, Larry W.

433

Petroleum Supply Annual, Volume 1  

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

1 1 With Data for 2012 | Release Date: September 27, 2013 | Next Release Date: August 28, 2014 Previous Issues Year: 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 Go Re-release of the Petroleum Supply Annual with data for 2011 Volume 1 - Final annual data for the supply and disposition of crude oil and petroleum products. Volume 1 Tables All Tables All Tables Detailed Statistics Tables National Statistics 1 U.S. Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products PDF CSV 2 U.S. Daily Average Supply and Disposition of Crude Oil and Petroleum Products PDF CSV Supply and Disposition of Crude Oil and Petroleum Products 3 PAD District 1 PDF CSV 4 Daily Average PAD District 1 PDF CSV

434

Accuracy of Petroleum Supply Data  

Gasoline and Diesel Fuel Update (EIA)

Accuracy of Petroleum Supply Data Accuracy of Petroleum Supply Data by Tammy G. Heppner and Matthew M. Breslin Overview For 2007, 66 petroleum supply data series were analyzed to determine how close the PSM values were to the final PSA values. For these series, 50 out of the 66 PSM values were within 1 percent of the PSA values in terms of mean absolute percent error as compared to 38 out of 66 in 2006. Sixty-two petroleum supply data series were analyzed to see how close the MFW estimates were to the final PSA values. For these 62 series, 22 MFW estimates were within 2 percent of the PSA values in terms of mean absolute percent error and, of those, 9 were within 1 percent, compared to 27 and 10, respectively, for 2006. Petroleum supply data collected by the Petroleum Division

435

How to Reduce Energy Supply Costs  

E-Print Network (OSTI)

Rising energy costs have many businesses looking for creative ways to reduce their energy usage and lower the costs of energy delivered to their facilities. This paper explores innovative renewable and alternative energy technologies that can help customers control their supply-side costs of energy. Specific topics include distributive wind power generation and solid fuel boilers. It identities factors to consider in determining whether these technologies are economically viable for customers and stresses the importance of fully researching alternatives before committing to major equipment investments.

Swanson, G.

2007-01-01T23:59:59.000Z

436

Improving supply chain resilience by multi-stage supply chain  

E-Print Network (OSTI)

Due to the global expansion of Company A's supply chain network, it is becoming more vulnerable to many disruptions. These disruptions often incur additional costs; and require time to respond to and recover from these ...

Yang, Jingxia, M. Eng, Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

437

Improve supply chain resilience by multi-stage supply chain  

E-Print Network (OSTI)

Due to the global expansion of Company A's supply chain network, it is becoming more vulnerable to many disruptions. These disruptions often incur additional costs; and require time to respond to and recover from these ...

Xu, Jie, M. Eng. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

438

IEEE IAS Annual Meeting, Oct. 6-10, 1996, San Diego, CA, pp. 2333-2339 Survey of Harmonics Measurements in Electrical Distribution Systems  

E-Print Network (OSTI)

be 1.0 [7]. Form Factor I I RMS _ = 1 (5) Symmetrical components is a mathematical tool used to analyze of several buildings in the three Department of Energy (DOE) Oak Ridge plants in Tennessee has yielded), variable frequency drives, switch mode power supplies, and uninterruptible power supplies. A discussion

Tolbert, Leon M.

439

Petroleum supply monthly, April 1994  

Science Conference Proceedings (OSTI)

Data presented in the Petroleum Supply Monthly (PSM) describe the supply and disposition of petroleum products in the United States and major US geographical regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the US. The reporting universe includes those petroleum sectors in primary supply. Included are: petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. When aggregated, the data reported by these sectors approximately represent the consumption of petroleum products in the US.

Not Available

1994-04-01T23:59:59.000Z

440

Petroleum supply monthly, February 1994  

Science Conference Proceedings (OSTI)

The Petroleum Supply Monthly presents data describing the supply and disposition of petroleum products in the United States and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the US. The reporting universe includes those petroleum sectors in primary supply. Included are: petroleum refiners, motor gasoline blenders; operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. Data are divided into two sections: Summary statistics and Detailed statistics.

Not Available

1994-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "uninterruptible power supply" 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

SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting  

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

Photovoltaic Supply Chain and Photovoltaic Supply Chain and Cross-Cutting Technologies to someone by E-mail Share SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on Facebook Tweet about SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on Twitter Bookmark SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on Google Bookmark SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on Delicious Rank SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on Digg Find More places to share SunShot Initiative: Photovoltaic Supply Chain and Cross-Cutting Technologies on AddThis.com... Concentrating Solar Power Photovoltaics Research & Development Competitive Awards Diversity in Science and Technology Advances National Clean Energy

442

Method and apparatus for reliable gas supply  

SciTech Connect

A method is described for supplying gas to a receiving point at a flowrate at least equal to a design gas usage rate comprising: (A) passing liquid from a liquid reservoir into an atmospheric vaporizer having a rated capacity at least equal to the design gas usage rate; (B) passing the liquid through the atmospheric vaporizer while heating the liquid by indirect heat exchange with ambient air to produce heated fluid; (C) passing substantially all of the heated fluid from the atmospheric vaporizer into a powered heat exchanger having a rated capacity at least equal to the design gas usage rate; (D) passing the heated fluid through the powered heat exchanger while heating the heated fluid by indirect heat exchange with hot fluid to produce product gas; and (E) passing product gas to the receiving point at a flowrate at least equal to the design gas usage rate.

Borcuch, J.P.; Thompson, D.R.

1989-04-18T23:59:59.000Z

443

coal supply | OpenEI  

Open Energy Info (EERE)

coal supply coal supply Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is Table 15, and contains only the reference case. The dataset uses gigawatts. The data is broken down into production, net imports, consumption by sector and price. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO coal coal supply disposition. prices EIA Data application/vnd.ms-excel icon AEO2011: Coal Supply, Disposition, and Prices- Reference Case (xls, 91.7 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035 License License Open Data Commons Public Domain Dedication and Licence (PDDL)

444

energy supply | OpenEI  

Open Energy Info (EERE)

supply supply Dataset Summary Description OECD Factbook 2010: Economic, Environmental and Social Statistics - ISBN 92-64-08356-1 - © OECD 2010. Available directly from the OECD Statistics website (beta version). Source OECD Date Released January 01st, 2010 (5 years ago) Date Updated Unknown Keywords energy supply ISBN 92-64-08356-1 OECD renewable energy world Data application/vnd.ms-excel icon OECD Factbook 2010: Contribution of Renewables to Energy Supply (xls, 38.4 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period 1971 - 2008 License License Other or unspecified, see optional comment below Comment the User can upload up to 1,500 words or 2,000 cells (equivalent to 4 tables or graphs) provided that suitable acknowledgement of OECD as source and copyright owner is given. The User must link to the OECD page where the uploaded material was taken from;

445

Oxygenate Supply/Demand Balances  

Gasoline and Diesel Fuel Update (EIA)

Oxygenate Supply/Demand Oxygenate Supply/Demand Balances in the Short-Term Integrated Forecasting Model By Tancred C.M. Lidderdale This article first appeared in the Short-Term Energy Outlook Annual Supplement 1995, Energy Information Administration, DOE/EIA-0202(95) (Washington, DC, July 1995), pp. 33-42, 83-85. The regression results and historical data for production, inventories, and imports have been updated in this presentation. Contents * Introduction o Table 1. Oxygenate production capacity and demand * Oxygenate demand o Table 2. Estimated RFG demand share - mandated RFG areas, January 1998 * Fuel ethanol supply and demand balance o Table 3. Fuel ethanol annual statistics * MTBE supply and demand balance o Table 4. EIA MTBE annual statistics * Refinery balances

446

The 3He Supply Problem  

Science Conference Proceedings (OSTI)

One of the main uses for 3He is in gas proportional counters for neutron detection. Radiation portal monitors deployed for homeland security and non-proliferation use such detectors. Other uses of 3He are for research detectors, commercial instruments, well logging detectors, dilution refrigerators, for targets or cooling in nuclear research, and for basic research in condensed matter physics. The US supply of 3He comes almost entirely from the decay of tritium used in nuclear weapons by the US and Russia. A few other countries contribute a small amount to the world’s 3He supply. Due to the large increase in use of 3He for homeland security, the supply has dwindled, and can no longer meet the demand. This white paper reviews the problems of supply, utilization, and alternatives.

Kouzes, Richard T.

2009-05-01T23:59:59.000Z

447

Total supply chain cost model  

E-Print Network (OSTI)

Sourcing and outsourcing decisions have taken on increased importance within Teradyne to improve efficiency and competitiveness. This project delivered a conceptual framework and a software tool to analyze supply chain ...

Wu, Claudia

2005-01-01T23:59:59.000Z

448

Petroleum Supply and Market Outlook  

Reports and Publications (EIA)

A presentation to the 7th Annual International Airport Operations/Jet Fuel Conference, in Orlando, Florida, on February 3, 2005, giving EIA¿s outlook for petroleum supply and prices, with particular attention to jet fuel.

Information Center

2005-02-09T23:59:59.000Z

449

HEU Minimization and the Reliable Supply of Medical Isotopes Nuclear  

National Nuclear Security Administration (NNSA)

HEU Minimization and the Reliable Supply of Medical Isotopes Nuclear HEU Minimization and the Reliable Supply of Medical Isotopes Nuclear Security Summit: Fact Sheet | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > Media Room > Fact Sheets > HEU Minimization and the Reliable Supply of ... Fact Sheet HEU Minimization and the Reliable Supply of Medical Isotopes Nuclear

450

Unified Power Quality Conditioner: protection and performance enhancement.  

E-Print Network (OSTI)

?? The proliferation of power electronics-based equipment has produced a significant impact on the quality of electric power supply. Nowadays, much of the equipment is… (more)

Axente, Iurie, (Thesis)

2008-01-01T23:59:59.000Z

451

Startup Design Features for Supercritical Power Conversion Systems ...  

Nuclear Power; Oil and Gas; Water Supply and Sewage Treatment; Renewable Power and Energy; Technology Status. Technology ID Development Stage Availability Published

452

Power System Modeling of 20percent Wind-Generated Electricity by 2030  

E-Print Network (OSTI)

price elasticity of natural gas supply of 1.2; low and highfor natural gas, wind power may relieve gas supply pressures

Hand, Maureen

2008-01-01T23:59:59.000Z

453

LNG links remote supplies and markets  

Science Conference Proceedings (OSTI)

Liquefied natural gas (LNG) has established a niche for itself by matching remote gas supplies to markets that both lacked indigenous gas reserves and felt threatened in the aftermath of the energy crises of the 1970s and 1980s. It has provided a cost-effective energy source for these markets, while also offering an environmentally friendly fuel long before that was fashionable. The introduction of natural-gas use via LNG in the early years (mostly into France and Japan) has also allowed LNG to play a major role in developing gas infrastructure. Today, natural gas, often supplied as LNG, is particularly well-suited for use in the combined cycle technology used in independent power generation projects (IPPs). Today, LNG players cannot simply focus on monetizing gas resources. Instead, they must adapt their projects to meet the needs of changing markets. The impact of these changes on the LNG industry has been felt throughout the value chain from finding and producing gas, gas treatment, liquefaction, transport as a liquid, receiving terminals and regasification, and finally, to consumption by power producers, industrial users, and households. These factors have influenced the evolution of the LNG industry and have implications for the future of LNG, particularly in the context of worldwide natural gas.

Avidan, A.A.; Gardner, R.E.; Nelson, D.; Borrelli, E.N. [Mobil LNG Inc., Houston, TX (United States); Rethore, T.J. [Arthur D. Little Inc., Houston, TX (United States)

1997-06-02T23:59:59.000Z

454

Interactions between Electric-drive Vehicles and the Power Sector in California  

E-Print Network (OSTI)

average peaking natural gas power plant (NGCT) supplies the13 categories. Natural gas- fired power plants comprise overcoal-fired power plant capacity, where natural gas plants

McCarthy, Ryan; Yang, Christopher; Ogden, Joan M.

2009-01-01T23:59:59.000Z

455

• Temperature Compensated Reference • Monitors 3.0 V (MC34164–3) or 5.0 V (MC34164–5) Power Supplies • Precise Comparator Thresholds Guaranteed Over Temperature • Comparator Hysteresis Prevents Erratic Reset • Reset Output Capable of Sinking in Excess of  

E-Print Network (OSTI)

The MC34164 series are undervoltage sensing circuits specifically designed for use as reset controllers in portable microprocessor based systems where extended battery life is required. These devices offer the designer an economical solution for low voltage detection with a single external resistor. The MC34164 series features a bandgap reference, a comparator with precise thresholds and built–in hysteresis to prevent erratic reset operation, an open collector reset output capable of sinking in excess of 6.0 mA, and guaranteed operation down to 1.0 V input with extremely low standby current. These devices are packaged in 3–pin TO–226AA, 8–pin SO–8 and Micro8? surface mount packages. Applications include direct monitoring of the 3.0 or 5.0 V MPU/logic power supply used in appliance, automotive, consumer, and industrial equipment.

Micro Surface; Mount Packages

2001-01-01T23:59:59.000Z

456

Integrated Power-Gating and State Assignment for Low Power FSM Synthesis  

Science Conference Proceedings (OSTI)

Power-gating is an effective technique for reducing standby leakage power and dynamic power. In power-gating one can shut off the power supply to sections of logic block while keeping other logic blocks active. However, careful design is required to ... Keywords: Low power synthesis, Power-gating, FSM decomposition, State encoding, Genetic Algorithm

Sambhu Nath Pradhan; M. Tilak Kumar; Santanu Chattopadhyay

2008-04-01T23:59:59.000Z

457

A Tariff for Reactive Power - IEEE  

DOE Green Energy (OSTI)

This paper describes a suggested tariff or payment for the local supply of reactive power from distributed energy resources. The authors consider four sample customers, and estimate the cost of supply of reactive power for each customer. The power system savings from the local supply of reactive power are also estimated for a hypothetical circuit. It is found that reactive power for local voltage regulation could be supplied to the distribution system economically by customers when new inverters are installed. The inverter would be supplied with a power factor of 0.8, and would be capable of local voltage regulation to a schedule supplied by the utility. Inverters are now installed with photovoltaic systems, fuel cells and microturbines, and adjustable-speed motor drives.

Kueck, John D [ORNL; Tufon, Christopher [Pacific Gas and Electric Company; Isemonger, Alan [California Independent System Operator; Kirby, Brendan J [ORNL

2008-11-01T23:59:59.000Z

458

Energy supply network design optimization for distributed energy systems  

Science Conference Proceedings (OSTI)

Based on the fluctuations in power and heat demand of the consumers in a region, this paper presents a bi-level programming model for the regional DES (distributed energy system) network planning. The model aims to minimize the total cost of the regional ... Keywords: Bi-level programming, Distributed energy system, Energy supply network, Hybrid algorithm

Ming Dong; Fenglan He; Hairui Wei

2012-11-01T23:59:59.000Z

459

Design of a 50-watt air supplied turbogenerator  

E-Print Network (OSTI)

This thesis presents the design of a high-pressure-ratio, low-flow turbogenerator with 50 W electrical power output, designed to operate from a 5-bar air supply. The research shows that a MEMS-based silicon turbine in ...

Jovanovic, Stevan, S.M. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

460

Funding and Federal Staffing Requirements Funding Summary (Energy Supply)  

E-Print Network (OSTI)

. . . . . . . 1,367 8,000 4,000 -4,000 -50.0% Wind Energy Technology Viability . . . . . . . . . . . 23,411 29Funding and Federal Staffing Requirements Funding Summary (Energy Supply) (dollars in thousands) FY.6% Solar Energy Concentrating Solar Power . . . . . . 13,025 1,932 0 -1,932 -100.0% Photovoltaic Energy

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Petroleum Supply Monthly - Energy Information Administration  

U.S. Energy Information Administration (EIA)

30 Energy Information Administration/Petroleum Supply Monthly, October 2011 Table 24. PAD District 5 - Year-to-Date Daily Average Supply and Disposition of Crude Oil ...

462

NREL: Jobs and Economic Competitiveness - Supply Constraints...  

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

Supply Constraints Analysis Some of the materials used in solar PV modules, such as tellurium and indium, are rare materials in limited supply. Solar PV technologies have grown...

463

Role of nuclear power in the Philippine power development program  

SciTech Connect

The reintroduction of nuclear power in the Philippines is favored by several factors such as: the inclusion of nuclear energy in the energy sector of the science and technology agenda for national development (STAND); the Large gap between electricity demand and available local supply for the medium-term power development plan; the relatively lower health risks in nuclear power fuel cycle systems compared to the already acceptable power systems; the lower environmental impacts of nuclear power systems compared to fossil fuelled systems and the availability of a regulatory framework and trained personnel who could form a core for implementing a nuclear power program. The electricity supply gap of 9600 MW for the period 1993-2005 could be partly supplied by nuclear power. The findings of a recent study are described, as well as the issues that have to be addressed in the reintroduction of nuclear power.

Aleta, C.R. [Philippine Nuclear Research Institite, Quezon City (Philippines)

1994-12-31T23:59:59.000Z

464

Petroleum supply monthly, January 1996  

SciTech Connect

The Petroleum Supply Monthly (PSM) is one of a family of four publications produced by the Petroleum Supply Division within the Energy Information Administration (EIA) reflecting different levels of data timeliness and completeness. The other publications are the Weekly Petroleum Status Report (WPSR), the Winter Fuels Report, and the Petroleum Supply Annual (PSA). Data presented in the PSM describe the supply and disposition of petroleum products in the United States and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the United States (50 States and the District of Columbia). The reporting universe includes those petroleum sectors in primary supply. Included are: petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. When aggregated, the data reported by these sectors approximately represent the consumption of petroleum products in the United States. Data presented in the PSM are divided into two sections: Summary Statistics and Detailed Statistics.

NONE

1996-02-15T23:59:59.000Z

465

Petroleum Supply Monthly, August 1990  

SciTech Connect

The Petroleum Supply Monthly (PSM) is one of a family of three publications produced by the Petroleum Supply Division within the Energy Information administration (EIA) reflecting different levels of data timeliness and completeness. The other two publications are the Weekly Petroleum Status Report (WPSR) and the Petroleum Supply Annual (PSA). Data presented in the PSM describe the supply and disposition of petroleum products in the United States and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) district movements, and inventories by the primary suppliers of petroleum products in the United States (50 States and the District of Columbia). The reporting universe includes those petroleum sectors in Primary Supply. Included are: petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. When aggregated, the data reported by these sectors approximately represent the consumption of petroleum products in the United States. Data presented in the PSM are divided into two sections (1) the Summary Statistics and (2) the Detailed Statistics.

Not Available

1990-10-30T23:59:59.000Z

466

Petroleum supply monthly, September 1991  

SciTech Connect

The Petroleum Supply Monthly (PSM) is one of a family of three publications produced by the Petroleum Supply Division within the Energy Information Administration (EIA) reflecting different levels of data timeliness and completeness. The other two publications are the Weekly Petroleum Status Report (WPSR) and the Petroleum Supply Annual (PSA). Data presented in PSM describe the supply and disposition of petroleum products in the United States and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administrations for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the United States (50 states and the District of Columbia). The reporting universe includes those petroleum sectors in Primary Supply. Included are: petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. When aggregated, the data reported by these sectors approximately represent the consumption of petroleum products in the United States. Data presented in the PSM are divided into two sections (1) the Summary Statistics and (2) the Detailed Statistics. 65 tabs.

Not Available

1991-09-30T23:59:59.000Z

467

Power Technologies Data Book  

SciTech Connect

This report, prepared by NREL's Energy Analysis Office, includes up-to-date information on power technologies, including complete technology profiles. The data book also contains charts on electricity restructuring, power technology forecasts and comparisons, electricity supply, electricity capability, electricity generation, electricity demand, prices, economic indicators, environmental indicators, conversion factors, and selected congressional questions and answers.

Goldstein, L.

2002-09-01T23:59:59.000Z

468

Long Term World Oil Supply  

Gasoline and Diesel Fuel Update (EIA)

0 0 Notes: The following pages summarize a recent EIA presentation on estimates of the world conventional oil resource base and the year when production from it will peak and then begin to decline. A version of this presentation was given by former EIA Administrator Jay Hakes to the April 18, 2000 meeting of the American Association of Petroleum Geologists in New Orleans, Louisiana. Specific information about this presentation may be obtained from John Wood (john.wood@eia.doe.gov), Gary Long (gary.long@eia.doe.gov) or David Morehouse (david.morehouse@eia.doe.gov). Long Term World Oil Supply http://www.eia.doe.gov/pub/oil_gas/petroleum/presentations/2000/long_term_supply/sld001.htm [8/10/2000 4:56:23 PM] Slide 2 of 20 http://www.eia.doe.gov/pub/oil_gas/petroleum/presentations/2000/long_term_supply/sld002.htm [8/10/2000 4:56:24 PM]

469

oil supply | OpenEI  

Open Energy Info (EERE)

oil supply oil supply Dataset Summary Description CIA: World Factbook assessment of proved reserves of crude oil in barrels (bbl). Proved reserves are those quantities of petroleum which, by analysis of geological and engineering data, can be estimated with a high degree of confidence to be commercially recoverable from a given date forward, from known reservoirs and under current economic conditions. Estimated as of January 1st, 2010. Source CIA Date Released January 01st, 2010 (4 years ago) Date Updated Unknown Keywords crude oil energy energy data international oil oil supply Data text/csv icon 2010 Proved Oil Reserves (csv, 4.6 KiB) text/plain icon Original Text Format (txt, 6.5 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency

470

Accuracy of Petroleum Supply Data  

Gasoline and Diesel Fuel Update (EIA)

in in the Office of Oil and Gas (OOG) of the Energy Information Administration (EIA) showed an improvement in the accuracy of the 2006 data from initial estimates, to interim values, to final values. These data were presented in a series of PD products: the Weekly Petroleum Status Report (WPSR), This Week in Petroleum (TWIP), the Petroleum Supply Monthly (PSM), and the Petroleum Supply Annual (PSA). Weekly estimates in the WPSR and TWIP were the first values available. Figure FE1 illustrates that just as there was an improvement in gas mileage over time, there was an improvement in petroleum supply data accuracy with increasing review time. For the monthly-from-weekly (MFW) data, respondents have the shortest reporting time, analysts have the shortest review time, and the data are least accurate. For the PSM data, respondents have a longer reporting time than the weekly, analysts have

471

Petroleum supply monthly, July 1993  

SciTech Connect

Data presented in the Petroleum Supply Monthly (PSM) describe the supply and disposition of petroleum products in the United States and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the United States (50 States and the District of Columbia). The reporting universe includes those petroleum sectors in primary supply. Included are: Petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. When aggregated, the data reported by these sectors approximately represent the consumption of petroleum products in the United States.

1993-07-29T23:59:59.000Z

472

Integrating wind and wave power in California.  

E-Print Network (OSTI)

??California is increasing the percentage of its electrical energy supply from renewable energy resources. The motivation to shift from fossil fuel fired electric power plants… (more)

Stoutenburg, Eric Dale

2012-01-01T23:59:59.000Z

473

Protecting Computer Systems Against Power Transients  

Science Conference Proceedings (OSTI)

... protection may be more important than some data loss. ... by a telephone or other network link to ... are buffered by the computer's power supply but ...

2013-05-17T23:59:59.000Z

474

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

U.S. Energy Information Administration (EIA)

As well as importing significant hydroelectric power from the Pacific Northwest, California has a significant supply of in-state hydroelectric capacity.

475

Petroleum supply monthly, January 1994  

SciTech Connect

Data presented describe the supply and disposition of petroleum products in the United States and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the United States. The reporting universe includes those petroleum sectors in primary supply. Included are: petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. When aggregated, the data reported by these sectors approximately represent the consumption of petroleum products in the United States.

Not Available

1994-01-01T23:59:59.000Z

476

Quality of Supply Around the Globe: A Summary of the QOS Database  

Science Conference Proceedings (OSTI)

There are many different aspects to the "Quality of Supply" (QOS) that may be considered when developing regulatory approaches for electric utilities. The international community has generally come to a consensus that quality of supply has three main components: • Customer service • Continuity of supply (typically referred to as "reliability" in the United States) • Voltage quality (typically referred to as "power quality" in the United States) The documents summarized in this update addre...

2004-12-27T23:59:59.000Z

477

Meet the Challenge - Supply Chain | Data.gov  

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

Meet the Challenge - Supply Chain Sustainable Supply Chains Submissions Let's Talk About Sustainable Supply Chain You are here Data.gov Communities Sustainable Supply Chain...

478

Investigating optimal configuration of a prospective renewable-based electricity supply sector  

Science Conference Proceedings (OSTI)

Proposed emission reduction targets as well as the scarcity of fossil fuel resources make a transition of the energy system towards a carbon free electricity supply necessary. Promising energy resources are solar and wind energy. The high temporal and ... Keywords: energy system model, geographic information system (GIS), linear optimization, power supply, renewable energy, simulation, supergrid

Tino Aboumahboub; Katrin Schaber; Peter Tzscheutschler; Thomas Hamacher

2010-02-01T23:59:59.000Z

479

Price strategies in dynamic duopolistic markets with deregulated electricity supplies using mixed strategies  

Science Conference Proceedings (OSTI)

While effective competition can force service providers to seek economically efficient methods to reduce costs, the deregulated electricity supply industry still allows some generators to exercise market power at particular locations, thereby preventing ... Keywords: deregulated electricity supplies, mixed strategies, price strategies

Jose B. Cruz, Jr.; Xiaohuan Tan

2005-10-01T23:59:59.000Z

480

Optimal Design of Sustainable Cellulosic Biofuel Supply Chains: Multiobjective Optimization Coupled with Life  

E-Print Network (OSTI)

a tremendous challenge for the sector and its supply chain to deliver an unprecedented scale of development students C ranfield University is gearing up to supply the energy engineering graduates of the future derived products play a part in both power generation and for transport fuel. Biofuels are particu- larly

Note: This page contains sample records for the topic "uninterruptible power supply" 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

Price strategies in dynamic duopolistic markets with deregulated electricity supplies using mixed strategies  

Science Conference Proceedings (OSTI)

While effective competition can force service providers to seek economically efficient methods to reduce costs, the deregulated electricity supply industry still allows some generators to exercise market power at particular locations, thereby preventing ... Keywords: Deregulated electricity supplies, Mixed strategies, Price strategies

Jose B. Cruz, Jr.; Xiaohuan Tan

2005-10-01T23:59:59.000Z

482

Supply Fan Control for Constant Air Volume Air Handling Units  

E-Print Network (OSTI)

Since terminal boxes do not have a modulation damper in constant volume (CV) air handling unit (AHU) systems, zone reheat coils have to be modulated to maintain the space temperature with constant supply airflow. This conventional control sequence causes a significant amount of reheat and constant fan power under partial load conditions. Variable Frequency Drives (VFDs) can be installed on these constant air volume systems. The fan speed can be modulated based on the maximum zone load. This paper present the procedure to control the supply fan speed and analyzes the thermal performance and major fan energy and thermal energy savings without expensive VAV retrofit through the actual system operation.

Cho, Y.; Wang, G.; Liu, M.

2007-01-01T23:59:59.000Z

483

Performances Analysis of Main Components Used in 60 MW Pulsed Supply for Particle Accelerator  

E-Print Network (OSTI)

The Proton-Synchrotron (PS) accelerator at CERN will be supplied by a new power system. The pulsed operation of the PS accelerator requires a specific design of the main components of the power system. This paper presents some key elements of the design of DC/DC power converters in terms of aging of power semiconductors, the strategy of harmonics voltage suppression and the design of the output filters. Finally, the performance of this new power system is presented.

Peron, R; Pouliquen, JL; Gollentz, B; Bordry, F; Burnet, JP

2010-01-01T23:59:59.000Z

484

Sustainable Supply Chain | Data.gov  

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

Sustainable Supply Chain Sustainable Supply Chain Sustainable Supply Chains Submissions Let's Talk About Sustainable Supply Chain Welcome to the Sustainable Supply Chain Community of Practice Bringing together government, industry, associations, non-profits and academic institutions to achieve more sustainable supply chains. Sustainable Supply Chain - New Updates New Updates View More Be a Champion Be a champion The Sustainable Supply Chain Community of Practice seeks champions from industry, academia and non-profits to lead each of the community market sectors. Do you know or are you a member of a leading edge organization that is implementing sustainable supply chain practices within one of the seven current community market sectors? If yes, nominate the organization as a Champion. Sustainable supply chain practices lead to cost savings,

485

Agent-based coordination techniques for matching supply and demand in energy networks  

Science Conference Proceedings (OSTI)

There is a lot of effort directed toward realizing the power network of the future. The future power network is expected to depend on a large number of renewable energy resources connected directly to the low and medium voltage power network. Demand ... Keywords: Supply and demand matching, market and non-market algorithms, multi-agent systems

Rashad Badawy; Benjamin Hirsch; Sahin Albayrak

2010-12-01T23:59:59.000Z

486

Rare Earth Supply Chain Overview  

Science Conference Proceedings (OSTI)

... energy options such as wind power, hybrid electric vehicles, advanced batteries, fluorescent lighting, and efficient permanent magnet motors and generators.